500 posts

26 May

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

22:33
Building a backend that processes (& renders) videos [closed] - nils Newest 'ffmpeg' Questions - Stack Overflow

How would I go about creating an endpoint to merge Sound-Files and Images/GIFs into an mp4 Video in a Node backend? Is there a simple library for that or would I have to use ffmpeg commands? Right now I set up my database using Cloud Firestore - would it make sense to later on publish the whole backend onto Firebase? Essentially I'd like to have a platform that allows people to upload music onto YouTube (So videos with sound and preferably animated videos, so not just still (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

23:07
avfilter/vf_blend: add support for float formats - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/vf_blend: add support for float formats [DH] libavfilter/vf_blend.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

22:18
exo player mp2, aac audio format and avi video format - Muhammet Newest 'ffmpeg' Questions - Stack Overflow

I use exoplayer but no sound from mp2 and aac audio formats in android application. I get this error when I open mp2 and aac audio format videos "media includes audio tracks but none are playable by this device"and some are not working in .avi format, some are working please can you help meenter image description here enter image description here -- enter image description here, enter image description here
21:27
Movie making from lyrics with timestamps in python - carl Newest 'ffmpeg' Questions - Stack Overflow

I have lyrics from musixmatch with timestamps. I want to form video with the lyric lines in the video along with images in a file numbered from 1-n. As seen in this post, I thought ffmpeg would be something which can help me but there aren't much information that i can find. Also the answer given by ⓐllogan, gives very vague idea of forming videos with "subtitle filter" in ffmpeg. It would be very helpful you can provide an example to explain your idea.(It can also help other coders at any time :) ) Thanks in (...)
20:23
Mencoder error - merging two video files with same fps, resolution and codec failed - Estatistics Newest 'ffmpeg' Questions - Stack Overflow

Mencoder error in linux - merging two video files with same fps, resolution and video and audio codec failed. These video files had different fps ratios, video codecs, and Audio codecs but same resolution. I made them to have the same codec by using the below ffmpeg command line per video: ffmpeg -i D1_vid.mp4 -c:v libx264 -refs 3 -x264-params b-pyramid=2 -acodec aac -b:a 327680 D1_video.mp4 However, even i made them to have many other aspects the same ones (e.g. ref frames) according to MediaInfo, they failed to merged under Mencoder: ` (...) --
19:37
Join video in FFmpeg have problem More than 1000 frames duplicated - Bùi Minh Quang Newest 'ffmpeg' Questions - Stack Overflow

Hello I have this FFMPEG code ffmpeg -i video1.mp4 -i video2.mp4 -i video3.mp4 -filter_complex "[0:v]scale=1280x720,setsar=1[v0]; [1:v]scale=1280x720,setsar=1[v1]; [2:v]scale=1280x720,setsar=1[v2]; [v0][0:a][v1][1:a][v2][2:a]concat=n=3:v=1:a=1" output.mp4 But I exec it it give back me this Warring Message: More than 1000 frames duplicated How can I solve it? Plesase help me. (...)
19:36
how to run ffmpeg command(windows) in java - SAI GIRI CHARY AOUSULA Newest 'ffmpeg' Questions - Stack Overflow

I executed the below FFMPEG terminal command in command prompt successfully. But I am unable to execute this command in my java program. I can execute all other ffmpeg commands which doesn't have double quotation marks, in my java program. Here I have confusing only with double quotation marks("..."). ffmpeg -i "concat:C:\\\\journalism\\\\videos\\\\vid1.ts|C:\\\\journalism\\\\videos\\\\vid2.ts" -c copy C:\\\\journalism\\\\videos\\\\output.mp4 I can execute above in command prompt successfully. But I tried as below in my java (...)
19:30
FFMPEG output to multiple rtmp and synchronize them - voncount Newest 'ffmpeg' Questions - Stack Overflow

presume I have a video, and I use filter to crop them let say 1/2 and 1/2 width to 2 rtmp output streams. Now 2 clients will subscribe to these stream let say vlc1 - stream 1 | vlc2 - stream 2 how can I synchronize them to play at the same time (I always see 1 client play faster or slower than other) Here is the code ffmpeg -re -stream_loop -1 -i sample.mp4 \\ -filter:v "crop=in_w/2:in_h:0:0" -c:a copy -f flv rtmp://localhost/live/1 \\ -filter:v "crop=in_w/2:in_h:in_w/2:0" -c:a copy -f flv (...)
19:04
Please help me use ffmpeg lt(mod) and gte(mod) - Unlockdtdd Newest 'ffmpeg' Questions - Stack Overflow

I want to mix and swap several second of my video. For example, every 9 second, first 5 second keep original and I want second 8+9 will be 6+7 and vice versa, 6+7 will be 8+9. I think overlay can work but I still don't know how to work with it.
18:12
Write FFMPEG frame to png/jpeg file - newAgeOfHelloWorld Newest 'ffmpeg' Questions - Stack Overflow

I have AV_PIX_FMT_YUV420P AVFrame, and I want to write it as PNG or JPEG file, it doesn't matter what format is inside (BGR, BGRA, RGB or RGBA). I tried to save it as AV_PIX_FMT_YUV420P, but I got 3 pictures in one, so I need to convert it to RGB24 first. I do it via: int destW = decCtx->width; int destH = decCtx->height; AVFrame * resFrame = av_frame_alloc(); resFrame->linesize[0] = destW * 3; resFrame->data[0] = (uint8_t*)malloc(resFrame->linesize[0] * destH); SwsContext * ctx = sws_getContext(decCtx->width, decCtx->height, (...)

Revisions : notation http://zone.spip.org/trac/spip-zone/log/_plugins_/notation

15:49
Revision 124817: Merge pull request 'une notice PHP 7.4 en moins' (#1) from ... - Beurt Revisions : notation

Merge pull request 'une notice PHP 7.4 en moins' (#1) from Beurt/notation:master into master -- Log
15:45
Revision 124816: une notice PHP 7.4 en moins la notice était « Trying to access array ... - Beurt Revisions : notation

une notice PHP 7.4 en moins la notice était « Trying to access array offset on value of type null in » -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

16:33
ffmpeg concat converts multiple videos to chipmunk version with half the video silence - inselmensch Newest 'ffmpeg' Questions - Stack Overflow

i try to concat multiple videos to one video and add an background music to it. for some reason the background music is perfectly added to the output video but the audio of each part of the output is speed up to a chipmunk version of the video itself. this results in an output video of 7 minutes with about 5 minutes of silence since everything is so fast that all the audio finishes after about 2 minutes. my command is: ffmpeg -safe 0 -i videolist.ffconcat -i bg_loop.mp3 -y -filter_complex "[1:0]volume=0.3[a1];[0:a][a1]amix=inputs=2" -vcodec libx264 -r 25 (...)
15:57
ffmpeg unable to save a frame at specific time - Gowtham Newest 'ffmpeg' Questions - Stack Overflow

I followed Im getting error "deprecated pixel format used, make sure you did set range correctly using ffmpeg".. can someone check my code below? to save a frame from a video but the saved frame is of timestamp 00:00:00 instead of the given timestamp $ ffmpeg -i 001\\ Introduction.mp4 -ss 00:03:12.00 -vframes 1 side_view.jpg ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.3.0 (Gentoo 9.3.0 p2) configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --docdir=/usr/share/doc/ffmpeg-4.2.2/html --mandir=/usr/share/man (...) -- https://gist.github.com/GowthamKudupudi/d3703f990548819a5bcd5e72bd5c0449
17:10
how to scale server setup with ffmpeg for converting videos on website - Tom Newest 'ffmpeg' Questions - Stack Overflow

I have a website that will offer video conversion service with ffmpeg. Users will select some options and click a button to process and create a video. The site is currently using laravel/php. If there are many requests at the same time, how should I handle the scaling up? How can it be done with traditional ISP? How about cloud service, e.g. Amazon, Digital Ocean?
14:35
FFMPEG command is not Working when set project's target SDK version 29(Android Q issue) - SAVALIYA REENA Newest 'ffmpeg' Questions - Stack Overflow

I am using the FFMPEG library to get a watermark stamp on video. It is working like charm in all versions when my project's target SDK version is 28 but when i set target sdk version 29, It gives me below exception. E/FFmpeg: Exception while trying to run: [Ljava.lang.java.io.IOException: Cannot "/data/user/0/com.videowatermark.addtextandtimestampongalleryvideos/files/ffmpeg": error=13, Permission denied Caused by: java.io.IOException: error=13, Permission denied at java.lang.UNIXProcess.forkAndExec(Native Method) at java.lang.UNIXProcess.(UNIXProcess.java:133) at (...)
12:55
Center crop image overlay using FFmpeg - HB. Newest 'ffmpeg' Questions - Stack Overflow

I currently have an image that is being overlayed on top of a video, as demonstrated in this image: The blue square is representing the video and the purple lines are representing the image on top of the video. Currently, I have the following command: "-i", InputVideoPath, "-i", InputImagePath, "-filter_complex", "[0:v]scale=iw*sar:ih,setsar=1,pad='max(iw\\\\,2*trunc(ih*9/16/2))':'max(ih\\\\,2*trunc(ow*16/9/2))':(ow-iw)/2:(oh-ih)/2[v0];[1:v][v0]scale2ref[v1][v0];[v0][v1]overlay=x=(W-w)/2:y=(H-h)/2[v]", "-map", "[v]", (...) -- , , ,
12:25
How do I use FFmpeg to fetch an audio from a local network and decode it to PCM? - Yousef Alaqra Newest 'ffmpeg' Questions - Stack Overflow

Currently, I have a node js server which is connected to a specific IP address on the local network (the source of the audio), to receive the audio using VBAN protocol. VBAN protocol, basically uses UDP to send audio over the local network. Node js implementation: http.listen(3000, () => console.log("Server running on port 3000"); ); let PORT = 6980; let HOST = "192.168.1.244"; io.on("connection", (socket) => console.log("a user connected"); socket.on("disconnect", () => console.log("user disconnected"); (...)
12:17
ffmpeg horizonal flip makes video shorter - Adam Gosztolai Newest 'ffmpeg' Questions - Stack Overflow

I am trying to use the following command to flip my video horizontally ffmpeg -i video.mp4 -vf hflip -c:a copy video_flip.mp4 However, I discovered that it makes the video shorter, which I did not intend. I originally created the video using FFMpegWriter in Python, the code looks something like this metadata = dict(title='video', artist='me', comment='Watch this!') writer = FFMpegWriter(fps=25, metadata=metadata) with writer.saving(fig, "video.mp4", 100): for t in range(100): ax.cla() (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

11:34
hwcontext_vulkan: use dedicated allocation for buffers when necessary - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: use dedicated allocation for buffers when necessary [DH] libavutil/hwcontext_vulkan.c
13:01
hwcontext_vulkan: fix uploading and downloading from/to flipped images - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: fix uploading and downloading from/to flipped images We want to copy the lowest amount of bytes per line, but while the buffer stride is sanitized, the src/dst stride can be negative, and negative numbers of bytes do not make a lot of sense. [DH] libavutil/hwcontext_vulkan.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

10:29
How do I preserve side data when concatenating files in ffmpeg? - Mark Kahn Newest 'ffmpeg' Questions - Stack Overflow

I have multiple 360 videos that I'm trying to concatenate in ffmpeg. The command it self is pretty straightforward: ffmpeg -f concat -i 0036_concat.txt -c copy -strict unofficial 36.mp4 where 0036_concat.txt is just a list of the individual files. The issue I'm having is that I can't get ffmpeg to preserve side data. Very simply put, ffprobe on any of the source files includes this: Side data: spherical: equirectangular (0.000000/0.000000/0.000000) And I can't, for the life of me, get that to propagate to the output (...)
09:53
Use Static Library Build Shared Library Undefined Reference - Leo Newest 'ffmpeg' Questions - Stack Overflow

I want to use AndroidStudio ndk-build to build Shared Library on Window with ffmpeg lib but i got Undefined Reference Error,Please tell me what I do wrong ndkVersion = 21.0.6113669 compileSdkVersion 29 I also try to build By GCC , the same error happen I also try to build By CMake with ffmpeg SourceCode , the same error happen I try to build .a file with some simple C Code on gcc and use another C Code to use it,it work,but not with ffmpeg .a file i dont know why this is my Android.mk `LOCAL_PATH := $(call my-dir) include (...)
03:45
looking for gui based HLS downloader based on ffmpeg & or better download code [closed] - wahiduzzaman sagar Newest 'ffmpeg' Questions - Stack Overflow

currently using ffmpeg for downloading HLS video (m3u8). the code i am using is ffmpeg -i "www.videoURL.com" -c copy "name name".mp4 its works fine but the problem is it takes a bit more time since I also have to give each video a name where other downloader (video downloadhelper) can automatically get a name from URL. video downloadhelper crashing/stopping a lot so not using it now. also it cant boost speed so i have to run 10-12 simultaneous ffmpeg download with command prompt open to keep the bandwidth use high. which is cluttering the screen and being hard to (...)
10:54
How to Use FFmpeg to Fetch an Audio From Local Network and Decode it to PCM? - Yousef Alaqra Newest 'ffmpeg' Questions - Stack Overflow

Currently, I have a node js server which is connected to a specific IP address on the local network (the source of the audio), to receive the audio using VBAN protocol. VBAN protocol, basically uses UDP to send audio over the local network. Node js implementation: http.listen(3000, () => console.log("Server running on port 3000"); ); let PORT = 6980; let HOST = "192.168.1.244"; io.on("connection", (socket) => console.log("a user connected"); socket.on("disconnect", () => console.log("user disconnected"); (...)
08:02
Nodejs - ffmpeg - unable to live convert webcam to hls file - Jeff55 Newest 'ffmpeg' Questions - Stack Overflow

Okay so long story short: I need to be able to accept a video stream from my usb port and offer this up to my frontend (React) using HLS/RTMP/WebRTC. I opted for HLS because it seems to have the least amount of dependencies and this may end up running on a Pi, so simplicity is good. const spawn = require('child_process'); var args = [ '-pix_fmt', 'uyvy422', '-f', 'avfoundation', '-framerate', '30', '-i', '0', '-c:v', 'libx264', (...)
04:21
How to bulk convert .avi to .mkv with ffmpeg and add specific meta title without lossing quality? - Ayush Patel Newest 'ffmpeg' Questions - Stack Overflow

I am trying to convert a folder of 361 .avi files to .mkv... And at time of encoding I need to add specific meta titles as:-"cartoon T&J"... Eg: Input file: Ep01.avi output file: Ep01 cartoon T&J.mkv (meta title as "cartoon T&J" )
03:55
FFmpeg freezes during trim, concat and add watermark - Nguyễn Trọng Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to cut each video and change the speed of each, then I join them and finally add watermark. I calculated the percentage of the process and found it was working fine but it did not run to the onFinished function but stood still.I do not have a lot of clues why it happens. Anybody experienced something similar? cmd = [-y, -i, /storage/emulated/0/Story Saver/test.mp4, -i, /storage/emulated/0/.FXMotion/.LOGO/logo_watermark.png, -filter_complex_script, /storage/emulated/0/.FXMotion/.Script/script.txt, -map, [vw], -c:v, libx264, -pix_fmt, yuv420p, -crf, 18, -preset, (...) -- content script
04:38
How to get a list of video devices with a particular VendorID and/or ProductID using FFmpeg (on Mac OS) - mcgregor94086 Newest 'ffmpeg' Questions - Stack Overflow

The master task: I am writing software for a multiple USB camera array. The camera may be connected to a CPU that has other USB cameras builtin or attached. I need to capture one 1920x1080 JPG image from EACH of MY array's cameras into a directory of images - but I need to EXCLUDE any OTHER cameras when taking pictures. Right now I am trying to implement for MacOS, but in the future I will be implementing for Windows, Linux, iOS and Android. What is known: I know the VendorID, ProductID and UniqueID (reported by the MacOS USB system System (...)
04:52
Error of FFmpeg on Java in "av_image_copy_to_buffer" method during decoding H.264 stream - maru2213 Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to decode H.264 stream, which is sent over Socket from an Android application to a computer. And I also want to show the decoded stream using JavaFX. I searched for a long time, and decided to use JavaCV / FFmpeg. However I got error from FFmpeg. (I was inspired by this code.) Questions: Why does FFmpeg make error? Is it a correct way to convert AVFrame to javafx.scene.image.Image? I'm using: javacv-platform 1.4.4 ffmpeg-platform 4.1-1.4.4 Code: This is a part of import and class (...) -- this code

25 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

12:26
mfenc: Avoid including codecapi.h, fix building in UWP mode with clang - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

mfenc: Avoid including codecapi.h, fix building in UWP mode with clang Including codecapi.h and uuids.h in UWP mode doesn't define all defines properly, ending up with constructs that MSVC silently tolerates, but that clang errors out on, like this: DEFINE_GUIDEX(CODECAPI_AVEncCommonFormatConstraint); Just avoid including codecapi.h completely and hardcode the last few enum values we use from there. We already use local versions of most enums from there, due to older mingw-w64 headers being incomplete. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libavcodec/mf_utils.h (...)
12:18
mfenc: Remove an unused include - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

mfenc: Remove an unused include This might have been used originally for the decoder parts of the MediaFoundation wrapper, which aren't merged yet. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libavcodec/mfenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

19:07
How to change Chromuim alsa sound device [closed] - Edik Amperyan Newest 'ffmpeg' Questions - Stack Overflow

I need to run multiple browser windows at multiple alsa sound devices to record them using snd-aloop and ffmpeg in Ubuntu 18.04. I created three loopback devices: sudo modprobe snd-aloop enable=1,1,1 index=10,11,12 and tried to run chromium-browser with --alsa-output-device flag with different values (such as device name, number, "plug:" + name) but it always uses default device (checking it using pavucontrol). Does this flag work? Is there any other way to select sound device for application? I can do it using pavucontrol GUI but I need to do it (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

21:57
hwcontext_vulkan: check for dedicated allocation when mapping from drm/vaapi - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: check for dedicated allocation when mapping from drm/vaapi Some vendors (AMD) require dedicated allocation to be used for all imported images. [DH] libavutil/hwcontext_vulkan.c
21:56
hwcontext_vulkan: initialize the frames context when deriving - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: initialize the frames context when deriving Otherwise, the frames context is considered to be ready to handle mapping, and it doesn't get initialized the normal way through .frames_init. [DH] libavutil/hwcontext_vulkan.c
16:37
lavfi/vulkan: fix queue counts and set indices - Lynne git.videolan.org Git - ffmpeg.git/rss log

lavfi/vulkan: fix queue counts and set indices [DH] libavfilter/vulkan.c
16:36
lavfi/vulkan: use dedicated allocation for buffers when necessary - Lynne git.videolan.org Git - ffmpeg.git/rss log

lavfi/vulkan: use dedicated allocation for buffers when necessary [DH] libavfilter/vulkan.c
15:41
opusenc: add apply_phase_inv option - Lynne git.videolan.org Git - ffmpeg.git/rss log

opusenc: add apply_phase_inv option By popular request. Does the same as in libopusenc. [DH] libavcodec/opus_pvq.c [DH] libavcodec/opusenc.c [DH] libavcodec/opusenc.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

22:38
ffmpeg multiple process in background - mastersam Newest 'ffmpeg' Questions - Stack Overflow

Immortal set ffmpeg process in while but only one process in background. Is the any way to set ffmpeg command to more than 1 process ? immortal -r -1 ffmpeg
22:24
FFmpeg Error "No such filter: 'libvmaf' Mac - ringola27 Newest 'ffmpeg' Questions - Stack Overflow

I want to use FFmpeg to calculate PSNR for video sequences. At first I installed libvmaf with the instruction from here and here. I installed ffmpeg like here. I tried for a test: ffmpeg -i output4.mpg -i output1.mpg -lavfi libvmaf -f null - But I get an Error (below). I think I could solve it with ./configure --enable-libvmaf --enable-version3 or ./configure --enable-libvmaf but unfortunately I can not run it (I don't know how). I hope anyone can help me to solve this problem. ffmpeg version 4.2.3 Copyright (c) 2000-2020 the FFmpeg (...) -- here, here, here
22:14
FFMPEG is it faster to concat protocol or demux multiple h264 and aac mp4s? - yasgur99 Newest 'ffmpeg' Questions - Stack Overflow

I would like to combine multiple mp4 videos encoded with h264 as the video codec and aac as the audio codec. The mp4 videos have differing durations. Is it faster to use the concat protocol or do a concat demux?
22:00
Cutting the videos based on start and end time using ffmpeg - Kalai Newest 'ffmpeg' Questions - Stack Overflow

I tried to cut the video using the start and end time of the video by using the following command ffmpeg -ss 00:00:03 -t 00:00:08 -i movie.mp4 -acodec copy -vcodec copy -async 1 cut.mp4 By using the above command i want to cut the video from 00:00:03 to 00:00:08. But it is not cutting the video between those times instead of that it is cutting the video with first 11 seconds. can anyone help me how resolve this? Edit 1: I have tried to cut by using the following command which is suggested by mark4o ffmpeg -i movie.mp4 -ss 00:00:03 -t (...)
21:00
ffmpeg HLS transcoding and chunks upload to remote server - Georgе Stoyanov Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create a so called origin server for storing the hls chunks and the manifest file on a remote server. The sending machine running ffmpeg is with IP: 192.168.178.50 and the web server which has to store both the HLS chunks and the manifest file is with IP: 192.168.178.100. My ffmpeg transcoding command line is: $ ffmpeg -i 01_llama_drama_1080p.mp4 -profile:v high -level 5.2 -s 1920x1080 -strict -2 -start_number 0 -hls_time 6 -hls_list_size 0 -f hls http://192.168.178.100/hls/test.m3u8 ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the (...)
20:43
How to use ffmpeg stream copy within bash "for loop"? - Tom Vanwinkel Newest 'ffmpeg' Questions - Stack Overflow

ok i have this and it works but it's slow for i in *.mov; do name=`echo "$i" | cut -d'.' -f1` echo "$name" ffmpeg -i "$i" "$name.mp4" done I want it to convert with these ffmpeg options ffmpeg -i movie.mov -vcodec copy -acodec copy out.mp4
20:33
Unknown encoder 'libfaac' - hyperrjas Newest 'ffmpeg' Questions - Stack Overflow

I'm using carrierwave-video to upload video with my ruby on rails app. But I have this problem when try encode the video: Unknown encoder 'libfaac' Errors: no output file created. I have tried with: sudo apt-get install libfaac-dev but I get the same error. Updated: After compile ffmpeg, I get the same error: Metadata: major_brand : mp42 minor_version : 0 compatible_brands: mp42isomavc1 creation_time : 2011-10-13 18:54:50 encoder : HandBrake 0.9.5 2011010300 (...) -- carrierwave-video
19:47
FFMPEG: Auto restart the script when stuck - F O X Newest 'ffmpeg' Questions - Stack Overflow

i'm running various scripts with ffmpeg like streaming on youtube, recording camera ip etc. Sometimes my running scripts just stuck or stop working, there is no info about any errors or smth, they just got stuck, numbers doesn't change and i need to login to my server and click ctrl+z to stop it and then run it again. So... is there any way to make it automatic? I tried many solutions founded in the web but most of them are based on errors but my scripts usually dont show any errors, they just stuck. I'm using Raspbian OS on Raspberry (...)
19:36
Unplayable video after running FFmpeg command - HB. Newest 'ffmpeg' Questions - Stack Overflow

I asked this question last year. I resolved the issue I had and I implemented the same logic for merging an image with a video, instead of two images. This is running on Android. Here is the command I'm using currently: "-i", mFilePath, "-i", drawingPath, "-filter_complex", "[0:v]scale=iw*sar:ih,setsar=1,pad='max(iw\\\\,2*trunc(ih*47/80/2))':'max(ih\\\\,2*trunc(ow*80/47/2))':(ow-iw)/2:(oh-ih)/2[v0];[1:v][v0]scale2ref[v1][v0];[v0][v1]overlay=x=(W-w)/2:y=(H-h)/2[v]", "-map", "[v]", "-map", "0:a", "-c:v", "libx264", "-preset", "ultrafast", "-r", (...) -- Here are all the videos
18:44
Converting a color video to 8-bit (per frame) video via FFMPEG - SilverSurfer Newest 'ffmpeg' Questions - Stack Overflow

I wish to convert a color video file (AVI format) to grayscale video (i.e. 8 bits per frame) AVI video via FFMPEG. Any pointers? I have tried using gray and yuv420p options in pix_fmt but it they didn't help. Thank you
18:16
FFMPEG scaling watermark - razz Newest 'ffmpeg' Questions - Stack Overflow

I'm currently using a command to add a watermark + scrolling text and some extra encoding options to a video. The watermark + scrolling text are made to fit correctly when the video is 1280px (width) but when the original video is any other size (for example 1920px) the watermark + scrolling text gets tiny so i need to scale this. watermark size= 400x48 Current code i'm using i logo.png -filter_complex "[0:v][1:v] (...)
16:11
How to determine webm duration using ffprobe - Lopakhin Newest 'ffmpeg' Questions - Stack Overflow

My goal is simple , I have several webm files need to be concated, but first I need to determine their durations. It seems webm file are played as streams, so there is no way to tell the length of each file. I have been using ffprobe to do the job ,but the duration returned is N/A.The command I use was: ffprobe -i input.file -show_format | grep duration thanks. The complete output of ffprobe list below: ffprobe version 2.6.2 Copyright (c) 2007-2015 the FFmpeg developers built with Apple LLVM version 6.1.0 (...)
16:02
ffmpeg difference when using -lavfi or -filter_complex - Luiz Cieslak Newest 'ffmpeg' Questions - Stack Overflow

I've started to use ffmpeg recently. I have been using only the -filter_complex flag to apply filters. I stumbled upon this SO question: FFmpeg: How to convert horizontal video 16:9 to vertical video 9:16, with blurred background on top and bottom sides A ffmpeg maintainer answers it using the -lavfi flag: ffmpeg -i input.mp4 -lavfi "[0:v]scale=iw:2*trunc(iw*16/18),boxblur=luma_radius=min(h\\,w)/20:luma_power=1:chroma_radius=min(cw\\,ch)/20:chroma_power=1[bg];[bg][0:v]overlay=(W-w)/2:(H-h)/2,setsar=1" output.mp4 I tried to change -lavfi flag to (...)
15:20
Forwarding an RTSP stream from IP camera to youtube - cbake Newest 'ffmpeg' Questions - Stack Overflow

I have an IP camera (Foscam FI9800P) capable of sending an RTSP stream (I've confirmed using VLC the stream works). I want to stream the video from that camera to youtube. I'm guessing the camera can't send it to youtube directly, so I need a device in the middle. Something like: IP Camera --> Raspberry Pi --> Youtube live Ideally I'd like to do this without re-encoding the video along the way. ffmpeg appears to be able to do this, but it has many options and I haven't been able to figure out all its command line options. (...)
15:02
CLI Extract date/time stamp (timestamp) from quicktime or mpeg files - vy32 Newest 'ffmpeg' Questions - Stack Overflow

Is there a way to extract a date/time or a timestamp from various multi-media container files with Quicktime or MPEG2/MPEG4? I'm looking ideally for a command line tool. I have been able to get timestamps using ffprobe, part of the ffmpeg suite, but I haven't gotten the year, month and date. The camera had a clock so I'm pretty sure that this information was available. The history of this data file is that it was first shot on miniDV and transferred to a Mac over Firewire 800 using QuicktimePlayer to record the video. I'm told that the miniDV format is (...)
14:46
How to get the video duration using FFMPEG in C# asp.net - Hamad Newest 'ffmpeg' Questions - Stack Overflow

I want to get the video file duration in string using C#. I searched the internet and all i get is: ffmpeg -i inputfile.avi And every1 say that parse the output for duration. Here is my code which is string filargs = "-y -i " + inputavi + " -ar 22050 " + outputflv; Process proc; proc = new Process(); proc.StartInfo.FileName = spath; proc.StartInfo.Arguments = filargs; proc.StartInfo.UseShellExecute = false; proc.StartInfo.CreateNoWindow = false; proc.StartInfo.RedirectStandardOutput = false; (...)
13:10
Record live stream using ffmpeg as Process in Java - Serbroda Newest 'ffmpeg' Questions - Stack Overflow

I can not figure out how to start a Process in Java for recording a live stream with ffmpeg. I've tried several solutions, but my current code looks like this (simplified): public void startDownload() String[] processArgs = new String[] "ffmpeg", "-i", "https://ndrfs-lh.akamaihd.net/i/ndrfs_ndsⓐ430233/index_3776_av-p.m3u8", "-c", "copy", "-bsf:a", "aac_adtstoasc", "C:\\\\temp\\\\test.mp4" ; ProcessBuilder processBuilder = new ProcessBuilder(processArgs); try process = (...)
11:47
Standardized "Skip Intro" in MP4 video files? - Crissov Newest 'ffmpeg' Questions - Stack Overflow

Is there a standardized way to mark up specific parts of a MP4-contained video as skippable, e.g. trailers, recaps, intros/outros, opening/closing credits, in the metadata in the file itself? If possible, I would like to set this with FFmpeg or MP4box. I know that the mvhd box in MOV files makes it possible to specify a single preview. I assume Netflix and the like use specially named or hinted chapters, either from file-internal metadata or from a central database, to provide this feature. I want to add this now to videos in my personal library, just in case Kodi, VLC (...) -- ISO/IEC 14496-12:2015 (ISOBMFF)
11:45
How to add a Poster Frame to an MP4 video by timecode? - Crissov Newest 'ffmpeg' Questions - Stack Overflow

The mvhd atom or box of the original Quicktime MOV format supports a poster time variable for a timecode to use as a poster frame that can be used in preview scenarios as a thumbnail image or cover picture. As far as I can tell, the ISOBMFF-based MP4 format (.m4v) has inherited this feature, but I cannot find a way to set it using FFmpeg or MP4box or similar cross-platform CLI software. Edit: Actually, neither ISOBMFF nor MP4 imports this feature from MOV. Is there any other way to achieve this, e.g. using something like HEIFʼs derived images with a thmb (see Amendment 2) role? (...) -- FFmpeg, MP4box, Amendment 2, , Compressor, Photos,
12:39
RTMP push Android camera SDK - jmsiox Newest 'ffmpeg' Questions - Stack Overflow

I have been trying to implement RTMP push using libraries like RtmpPublisher , LiveVideoBroadcaster but I have not found success so far. They seem outdated and don't work as expected. I would like direction on either how to go about implementing this using custom solution or at least a working uptodate library. (I have read about using FFmpeg but there is nothing clearly showing how to implement this) On the server side I have no issues. I have a server that is able to receive RTMP pushed streams I just cant figure out how to implement on (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

10:42
Evolution #4496: [Cohérence d'interface] Harmonisation de la gestion des doc/logos en 3.3 Revisions : SPIP

Je n'ai pas les droits permettant de lier des tickets :(
10:25
Evolution #4496 (En cours): [Cohérence d'interface] Harmonisation de la gestion des doc/logos en 3.3 - b b Revisions : SPIP

Merci pour le rapport détaillé, mais c'est bien ce qu'on avait prévu pour la 3.3 cf les discussions sur les listes à ce sujet. Bref, c'est peut-être un chantier pour 3.4, mais en l'état, cette conversion des logos en documents ne me semble rien apporter pour l'utilisateur final. Exactement, ce qui a été fait pour la 3.3 est la première brique technique afin d'assurer la suite du chantier déjà abordé dans #3719 et les demandes liées. En résumé, ce ticket me semble être un "doublon", il serait plus utile de commenter dans le ticket principal, sinon de le lier à (...)
10:17
Evolution #4496: [Cohérence d'interface] Harmonisation de la gestion des doc/logos en 3.3 Revisions : SPIP

J'ai aussi testé en 3.3 SVN https://contrib.spip.net/Roles-de-documents#Gestion-des-logos : les logos ne sont pas listés dans la médiathèque l'interface d'upload reprend les fonctionnalités d'upload habituel des documents Mais comme prévenu dans la doc du plugin, il ne fonctionne pas du tout en 3.3
10:05
Evolution #4496 (En cours): [Cohérence d'interface] Harmonisation de la gestion des doc/logos en 3.3 Revisions : SPIP

Bonjour, Contexte¶ Je viens de tester la migration de 2 sites en mutualisation facile de 3.2.7 SVN à 3.3 SVN. Nickel, ça marche. J'ai pu vérifier que les logos étaient bien déplacés dans sites/nomdedomaine/IMG/logo/ Mais, j'avais cru comprendre que les logos devenaient des documents comme les autres, ce qui permettrait de les réutiliser via la bibliothèque. Constat¶ Et là, c'est le drame. Les logos ne sont pas listés dans la bibliothèque. Réciproquement, l'upload des logos est identique aux versions précédentes de SPIP. Donc, ne permet : ni d'aller chercher un logo dans la bibliothèque ni de modifier (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

10:39
Can't get watermark on my nginx-rtmp live streams with ffmpeg - mallebabbe Newest 'ffmpeg' Questions - Stack Overflow

Goodday, I'm trying to get my livestreams watermarked but for some reason the streams aren't transcoded with the image I want to have on top. My current build is: Stream from OBS to Nginx-RTMP server In the nginx.conf I've an app configured with the name live which should trigger ffmpeg execution and transfer the output to the push app to deliver the final stream to the different Social Media platform All is working without the ffmpeg execution. My OBS Stream configuration looks like (...)
10:34
Matplotlib: animation saved with trace - Thiziri yoor Newest 'ffmpeg' Questions - Stack Overflow

In the following Python code, I am trying to make an animation of a 2 rotating vectors around the origin. I am using matplotlib 3.2.1 and Python 3.8.2 on Ubuntu 20.04. import numpy as np import matplotlib.pyplot as plt from matplotlib.animation import FuncAnimation r = 2.0 def circle(phi): return np.array([r*np.cos(phi), r*np.sin(phi)]) fig, ax = plt.subplots(figsize=(10,6)) ax.axis([-3.5*r,3.5*r,-2.5*r,2.5*r]) ax.get_xaxis().set_visible(False) ax.get_yaxis().set_visible(False) # set equal (...) -- ,
10:23
How to merge audio and video file using ffmpeg in python? - NASK Newest 'ffmpeg' Questions - Stack Overflow

I need to merge both audio and video using ffmpeg in python 3.7,could you help me to solve this issue? Here i used code : from pathlib import Path glob_path = Path(r"D:\\t") file_name = [str(pp) for pp in glob_path.glob(r'**/*.mp4')] print(file_name) video_stream = ffmpeg.input(file_name[0]) audio_stream = ffmpeg.input(file_name[1]) print(video_stream) print(audio_stream) ffmpeg.output(audio_stream, video_stream, 'out.mp4').run() I getting this out put error ['D:\\\\t\\\\audio.mp4', (...)
09:13
Live Volume Pipe FFMPEG [closed] - Lukas L. Newest 'ffmpeg' Questions - Stack Overflow

Is there any solution to update the pipe's volume of ffmpeg while streaming? I'm using golang to create a MusicPlayer. I've tried to use the filter:a "volume=0.5" (doesn't work), but I want to change the volume life. Is there any possibility to change the volume of audio bytes in golang?
05:03
Decoding H.264 stream using FFmpeg on Java - maru2213 Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to decode H.264 stream, which is sent over Socket from an Android application to a computer. And I also want to show the decoded stream using JavaFX. I searched much hours, and decided to use JavaCV / FFmpeg. However I got error from FFmpeg. (I was inspired by this code) Questions: Why does FFmpeg make error? Is it a correct way to convert AVFrame to javafx.scene.image.Image? I'm using: javacv-platform 1.4.4 ffmpeg-platform 4.1-1.4.4 Code: This is a part of import and class fields, (...) -- this code
01:47
Why can't Chrome 83 play this AV1 encoded video? - Slbox Newest 'ffmpeg' Questions - Stack Overflow

The file plays great in VLC. I've tried adding the codecs="av01.0.05M.08" to the video source, but no luck - no browser will play it, despite what's stated here: https://caniuse.com/#feat=av1 The video was encoded like so: ffmpeg -i input.avi -pix_fmt yuva420p -f nut -c:v libaom-av1 -minrate 1k -b:v 350k -maxrate 2000k -strict experimental output.mp4 Browser console: Chrome gives no hint whatsoever as to why it won't play. Firefox gives some minor clues. Firefox shows the below Media resource (...) -- https://caniuse.com/#feat=av1

24 May

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

23:12
Streamimg video files using EmbedIO for the server and with live transcoding C# - Efrain Bastidas Berrios Newest 'ffmpeg' Questions - Stack Overflow

I'm using EmbedIO to create a simple web server to stream some local video files over the network by simply typing an url like this one: http://192.168.1.101:9696/videos?seconds=0&file=F:\\Videos\\MyVideo.mp4 The code for the server is the following: static void StartServer(params string[] args) var url = GetIpAddress(); if (args.Length > 0) url = args[0]; var server = new WebServer(o => o .WithUrlPrefix(url) .WithMode(HttpListenerMode.EmbedIO)) .WithLocalSessionManager() .WithModule(new (...)
23:06
Blender VSE Audio out-of-sync when animation (video) is rendered - Siddhant Shenoy Newest 'ffmpeg' Questions - Stack Overflow

Ok, so I found out that Blender has this really cool video-editing interface and I was beginning to love it. Until, I created this awesome project composition and when I exported the animation as a video file, the audio was out of sync :(. Actual Problem Audio is in-sync with video when the animation is played in Blender but is out-of-sync in the rendered video. Solutions I tried out and failed I used the 'Audio-Sync' option in the sequencer but that made no difference. Then I thought that my scene audio frequency might have been (...)

Newest 'x264' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/x264

21:37
Better way to use ffmpeg with vidstab and encoding 2 pass - Guillaume B. Newest 'x264' Questions - Stack Overflow

I scan old 8mm films so I have folder with set of jpeg I transform them to films using ffmpeg ( I choose x264 2 pass encoding) //On all folder that start by 1 I launch the pass1 for x264 for f in 1*/ ; do cd "$f"; ffmpeg -y -r 18 -i img%05d.jpg -c:v libx264 -s 1200x898 -b:v 3000k -pass 1 -an -f mp4 /dev/null; cd ..; done //On all folder that start by 1 I launch the pass2 x264 for f in 1*/ ; do cd "$f"; ffmpeg -y -r 18 -i img%05d.jpg -c:v libx264 -s 1200x898 -b:v 3000k -pass 2 ../"`echo $PWD##*/`.mp4"; cd ..; done > Before I (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

22:27
libswresample in recent Ubuntu version? - Albert Newest 'ffmpeg' Questions - Stack Overflow

I am wondering which package covers libswresample of a recent Ubuntu version (and maybe also earlier ones and hopefully also Debian). Is it covered at all? If not, what other lib should I use to resample the audio? Best would be to have it working just everywhere, i.e. the lib be available everywhere. Or maybe I just distribute libswresample along with my project and statically link to it...
22:14
Can I change the ffmpeg options to this? - Tom Vanwinkel Newest 'ffmpeg' Questions - Stack Overflow

ok i have this and it works but it's slow for i in *.mov; do name=`echo "$i" | cut -d'.' -f1` echo "$name" ffmpeg -i "$i" "$name.mp4" done I want it to convert with these ffmpeg options ffmpeg -i movie.mov -vcodec copy -acodec copy out.mp4
22:09
Can't give metadata of comment to MP3 file using ffmpeg - Juco Newest 'ffmpeg' Questions - Stack Overflow

I want to covert a AAC to MP3 and give metadata of comment to the MP3 file using ffmpeg. But -metadata comment doesn't work and ffmpeg doesn't return any error. My code is ffmpeg -i "test.aac" -ab 128k -metadata comment='this is test' "test.mp3" I tried -metadata description='this is test' and also update ffmpeg. Other function such as -metadata artist and -metadata album works well. What's wrong with this code? Output Stream mapping: Stream #0:0 -> #0:0 (aac (native) -> mp3 (...)
21:49
How to redirect an audio stream to a virtual pulseaudio microphone with ffmpeg? - azmeuk Newest 'ffmpeg' Questions - Stack Overflow

How to create a virtual pulseaudio microphone with ffmpeg? I have a mkv file and with v4l2 I am able to redirect the video stream to a virtual webcam device, here /dev/video0. ffmpeg -i myfile.mkv -f v4l2 /dev/video0 Now, in the same time I want to redirect the audio stream to a virtual pulseaudio microphone (and not to an output device). How can I achieve this?

Revisions : SPIP http://core.spip.org/projects/spip/activity

19:17
Anomalie #4495 (Nouveau): migration 3.2.7 vers 3.3.0 - josiane aletto Revisions : SPIP

test 1- j'ai installée en local un site qui était en SPIP 3.2.7 [24473] pour le migrer en SPIP 3.3.0-dev [24578]. fichier mesoptions.php avec define('_IMG_MAX_HEIGHT',1200); // largeur en pixels define('_IMG_MAX_WIDTH', 1024); // hauteur en pixels define('_IMG_MAX_SIZE', 650); // taille en kilo-octets Des logos de taille superieure a _IMG_MAX_SIZE', 650 ne sont plus dans IMG Pas non plus dans logo_erreur non plus. par exemple rubon3 : 1630 × 648 pixels Plugins : Adaptive Images 1.9.2 - Agenda 3.26.0 - API de vérification 1.8.1 - stable Centre image 0.10.4 - dev Couleur de rubrique 2.3.8 (...)
19:25
Anomalie #4495: migration 3.2.7 vers 3.3.0 - josiane aletto Revisions : SPIP

je précise que le fait que retailler les images au téléchargement est un plus mais retailler les logos a la migration est génant car cela change l'aspect du site

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

20:00
FFMPEG video Zoom to a Position X Y - Pilonas Newest 'ffmpeg' Questions - Stack Overflow

I want during zoom, zoom position is constantly changing as the video below https://youtu.be/hdFlP7ir07g This is the code I tried. But it does not work continuously but only works for the first 3 seconds Thank you for taking time for me ffmpeg -y -i 1.mp4 -vf "scale=iw*4:ih*4,zoompan=z='if(lte(mod(on,125),50),zoom+0.5,zoom-0.5)':x='iw/2-iw*(1/2-88/100)*on/150-iw/zoom/3':y='ih/2-ih*(1/2-94/100)*on/150-ih/zoom/3':d=0" -c:v libx264 -s "1280x720" (...) -- https://youtu.be/hdFlP7ir07g
17:52
How to correctly detect window with xdotool in bash script - wasd Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to record screen and also input from my webcam. To show image from a webcam I use ffplay. However I want it to be placed in a specific location of my screen. To do so I use xdotool and following bash script: #!/bin/bash ffplay -i /dev/video0 & res=$! echo $res window_pid=$(xdotool search --pid $res) echo $window_pid xdotool windowmove $window_pid 1200 200 wait For some reason I get correct process id res but nothing for the window_pid. If I run similar commands in terminal it works correctly (I run (...)
17:31
Error initializing filter 'pan' with args 'stereo:c0 c0+c2:c1 c1+c3' - Android Developer Newest 'ffmpeg' Questions - Stack Overflow

I run below FFmpeg command to merge audio and video keeping video's original audio using FFmpeg 4.0-39 version- -i /storage/emulated/0/Movies/extract_audio.mp3 -i /storage/emulated/0/Movies/VID-20200501-WA0000.mp4 -filter_complex [0:a][1:a]amerge,pan=stereo:c0 It fails for all videos with below error !However same command runs fine when using older version 3.0.1 of FFMpeg ! FAILED with output : ffmpeg version n4.0-39-gda39990 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 4.9.x (GCC) 20150123 (prerelease) configuration: (...)
17:18
Can I change the mmpeg options to this? - Tom Vanwinkel Newest 'ffmpeg' Questions - Stack Overflow

ok i have this and it works but it's slow for i in *.mov; do name=`echo "$i" | cut -d'.' -f1` echo "$name" ffmpeg -i "$i" "$name.mp4" done I want it to convert with these ffmpeg options ffmpeg -i movie.mov -vcodec copy -acodec copy out.mp4
16:47
How to increase line-height of text using drawtext with FFMPEG? - Romualdo Arrechea Hernández Newest 'ffmpeg' Questions - Stack Overflow

I'm using the current code to create a video with some text of several lines. When executed I'm receiving a video with the text joined vertically because of lacking space. How do I do to add line-height space? ffmpeg -i videoInput.mp4 \\ -vf drawtext="./font/Roboto/Roboto-Bold.ttf: \\ text='testing text \\ntesting text \\ntesting text':\\ fontcolor=yellow:\\ fontsize=36:\\ box=1:\\ boxcolor=blackⓐ0.5: \\ boxborderw=160:\\ x=(w-text_w)/2:\\ y=(h-text_h)/2"\\ -codec:a copy \\ (...)
16:26
MAC's "say" command to MP3 [closed] - Oussama L. Newest 'ffmpeg' Questions - Stack Overflow

I want to read a very long text with the SAY mac's command (say -f file.txt), and to record the output to file.mp3. I thought about using ffmpeg to record all of it, but then i'll need to wait for all the reading process to complete.. I don't really need to listen to it, so if there is a way to directly have an mp3 file just by hitting enter, it would be great.. There is also this project txt2mp3mac but i can't use it in a shell script.. (...) -- txt2mp3mac

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

15:10
Revision 124804: [Saisies] Suite à ... - Jacques Pyrat Revisions : saisies

[Saisies] Suite à https://zone.spip.org/trac/spip-zone/changeset/124803 harmoniser l'affichage des champs extra de réponses à un formulaire formidable -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

14:44
How to downsample all '.MTS' videos in a folder via using FFmpeg/or python? - kkkrr000 Newest 'ffmpeg' Questions - Stack Overflow

I have a list of videos('.MTS') formatt.How can I downsample it (keeping the aspect ratio same).I want to downsample all of them to a particular size. f"ffmpeg -i vname -filter:v scale=width:height -c: I came across this piece of code. Should I do this via terminal or via a python interpreter? Can has experience with this?
14:42
ffmpeg mp4 video cannot be played in old tv - Rick Brian Newest 'ffmpeg' Questions - Stack Overflow

I've convert many video to mp4 using ffmpeg and playing well on my TV. But ever since I change my laptop to a new one, my conversion failed to load on the TV. I have tried to download old-stable ffmpeg Windows build, I tried also download a win-32 build, no good. (I'm using x64 laptop with Windows 10 64-bit, just the same like previous laptop) I also tried to add -pix_fmt yuv420p, still no good. This is code that I used to convert using ffmpeg: ffmpeg -f concat -i "D:\\Convert\\LISTCAM.TXT" -c:v libx264 -c:a aac -pix_fmt yuv420p "Apr (...)
11:13
ffmpeg replace central channel with ffmpeg - Rafal B Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to replace central channel in the movie (Movie-A) with another audio stream from another movie (Movie-B). I was able to extract stereo stream from Movie-B: ffmpeg.exe" -i "Movie-B.mkv" Stream #0:1(pol): Audio: ac3, 48000 Hz, stereo, fltp, 320 kb/s (default) and convert it to mono stream: ffmpeg.exe" -i "Movie-B.mkv" -vn -ab 320k -ac 1 "Movie-B-Audio.ac3" Output #0, ac3, to 'Movie-B-Audio.ac3': Stream #0:0(pol): Audio: ac3, 48000 Hz, mono, fltp, 320 kb/s (default) For (...)
11:10
Change input source based on intensity of audio using FFmpeg - Harry Blue Newest 'ffmpeg' Questions - Stack Overflow

I have script that allows me to encode an audio stream and an mp4 file with visual effects applied over the top. The effects are synced to the music and whilst the effects are simple, they work well. I am using ffmpeg, mediainfo, randomize-lines, bc. #!/bin/bash ######################### ## START CONFIGURATION ## ######################### # path to video playlist.txt playlist="playlist.txt"; # output frame size outsize="1920x1080"; # frames per second fps="60"; # video (...)
11:07
Python add audio to video opencv - olokelo Newest 'ffmpeg' Questions - Stack Overflow

I use python opencv2 for join jpg frames to video, but I can't add audio to it. It's possible to add audio to video in python without ffmpeg?
11:02
C# FFMPEG: Code bugs out and stops producing media files - Hamez Newest 'ffmpeg' Questions - Stack Overflow

I've made a joke program in C# that uses ffmpeg to edit videos with different effects such as stuttering. I've finished 3 effects so far and each of them work on their own but as soon as I put one after another e.g. fx.CrashStutter(0, 2); fx.CrashBeep(2, 2); fx.Wow(4, 2); The code breaks and no longer produces photo/video files but once I stop debugging the file it was supposed to be processing appears. I've used a system where it loops over trying to execute a command to create a text file as a marker for when ffmpeg is done processing a file. The debug console also (...)
09:37
RuntimeError: No MovieWriters available in Matplotlib animation - user8715977 Newest 'ffmpeg' Questions - Stack Overflow

The problem I am getting is in code similar to this example: https://matplotlib.org/examples/animation/basic_example_writer.html The error: RuntimeError: No MovieWriters available occurs at Writer = animation.writers['ffmpeg'] in the example above. I am using mac, I have installed ffmpeg using brew, and even installed it with conda even though I am not using anaconda for this particular code. I am positive that it is installed - I have used it in terminal to change files but it is not working within the program. (...) -- https://matplotlib.org/examples/animation/basic_example_writer.html
09:30
Using ffmepg wrapper to convert images to movie file - reborn Newest 'ffmpeg' Questions - Stack Overflow

I have recently been using the ffmpeg wrapper by Vitaliy Fedorchenko called NReco.VideoConverter. It's pretty great and I have managed to write another application with it that I hope to release soon after some testing and I purchase the license for the wrapper (it's a cool watermarker for videos). I am now trying to use that same wrapper to encode a video from still images, but sadly there is very little documentation available and I am feeling my way int he dark a little. I am hopeful that someone familiar with the wrapper might be able to help. I collect (...) -- application picture, https://www.nrecosite.com/doc/NReco.VideoConverter/, https://www.nrecosite.com/doc/NReco.VideoConverter/html/M_NReco_VideoConverter_FFMpegConverter_ConvertMedia.htm, https://www.nrecosite.com/doc/NReco.VideoConverter/?topic=html/M_NReco_VideoConverter_FFMpegConverter_ConcatMedia.htm
08:49
ffmpeg video compression / specific file size - justin.esders Newest 'ffmpeg' Questions - Stack Overflow

Currently I have 80mb movies that I want to use ffmpeg to convert down to say about 10mb or 15mb. I know there will be a quality loss but they will need to have sound. Is there a way to either specify a file size or higher compression than what I have done previously ffmpeg -i movie.mp4 -b 2255k -s 1280x720 movie.hd.ogv They are currently about 25mb a piece

23 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

20:02
hwcontext_vulkan: use host mapped buffers when uploading and downloading - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: use host mapped buffers when uploading and downloading Speeds up both use cases by 30%. [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/hwcontext_vulkan.h

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

17:08
ffmpeg watchfolder mac convert mov to mp4 [duplicate] - Tom Vanwinkel Newest 'ffmpeg' Questions - Stack Overflow

I want to convert all mov files to mp4 in one watchfolder and copy it to another on my mac. This is wat i got so far: cd "/Users/tom/Documents/CONVERTER/MEDIA-IN/MOV" for filename in .mov; do stub="$filename%." ffmpeg -i stub.mov -vcodec copy -acodec copy "$stub.mp4"
21:30
Unexpected result from Python re.search for command line output - Fernando Ortega Newest 'ffmpeg' Questions - Stack Overflow

I'm using subprocess.Popen to run an ffmpeg command (in Windows) and then extract the part of the output that has the frame count with a regex expression using re.search. Sometimes, not always, I get the wrong result from search even if the printed command output string clearly shows what I expect. When I use re.findall I get 2 results, the "wrong" one and the expected one, but in the output string of the command I still only see one option. I'd like to understand why this is happening. Here's the code I'm running: import re import (...)
20:14
HW Accel Transcode Intel Quick Sync Video QSV h264_qsv and CRF Quality - Matt McManis Newest 'ffmpeg' Questions - Stack Overflow

I'm having a problem with HW Accel Intel Quick Sync Video and CRF. It looks like CRF -crf is not compatible with -c:v h264_qsv. Only Bit Rate -b:v works with -c:v h264_qsv. ffmpeg -i input.mp4 -c:v h264_qsv -crf 25 -pix_fmt nv12 output.mkv https://trac.ffmpeg.org/wiki/Hardware/QuickSync The guide says "ICQ mode (which is similar to crf mode of x264)" -global_quality 25 ffmpeg -i input.mp4 -c:v h264_qsv -global_quality 25 -pix_fmt nv12 output.mkv But I cannot get it to work. I get the error (...) -- https://trac.ffmpeg.org/wiki/Hardware/QuickSync
18:55
How can I play video with ".ass" subtitle and auto reload it after file changed - Toshiya Akaishi Newest 'ffmpeg' Questions - Stack Overflow

I am using a FFME(FFMediaElement) to play video in my WPF project. I'd like to know how could I add an .ass formatted subtitle and render it in the FFME control with vsfilter or vsfiltermod. If I modified the .ass subtitle file, could FFME automatically using the modified subtitle? Does it possible to load an .ass file from memory stream? -- FFMediaElement
18:49
Why does avcodec_send_frame give invalid argument error? - Rich Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to learn how to use the libav libraries from FFmpeg. When I run my code, it gives "Invalid argument" the first time I try to encode a frame. I'm using an mp4 as input and output to mp4. What are the possibilities for why it would give that error? What arguments is it looking for that might be wrong? #include #include #include void die(const char *msg) printf("ERROR: %s\\n", msg); exit(1); void checkRC(int rc, const char *msg) if (rc != 0) char avErrMsg[1024]; av_strerror(rc, avErrMsg, (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

20:14
mfenc: Fix building with clang in MSVC mode - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

mfenc: Fix building with clang in MSVC mode Just including icodecapi.h + codecapi.h apparently misses some bits, that MSVC doesn't complain about, but Clang does. Thus add a missing header to the custom hacky include path (required for keeping ICodecAPI visible when building in UWP mode, as it is intended to). The issue in Windows SDK headers about ICodecAPI availability in UWP/app mode has been reported upstream at https://developercommunity.visualstudio.com/content/problem/1037125/icodecapi-not-visible-when-compiling-in-uwp-mode.html, and later also filed in Feedback Hub (which (...)
12:11
libavcodec/libmp3lame: Don't free user-provided AVPacket - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

libavcodec/libmp3lame: Don't free user-provided AVPacket Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavcodec/libmp3lame.c
11:40
avcodec/libopusenc: Don't free user-provided AVPacket - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avcodec/libopusenc: Don't free user-provided AVPacket Reviewed-by: James Almer <jamrialⓐgmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavcodec/libopusenc.c
12:13
libavcodec/libvpxenc: Don't free user-provided AVPacket - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

libavcodec/libvpxenc: Don't free user-provided AVPacket Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavcodec/libvpxenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

18:33
[WPF][FFME] How can I play video with ".ass" subtitle and auto reload it after file changed - Toshiya Akaishi Newest 'ffmpeg' Questions - Stack Overflow

I am using a FFME(FFMediaElement) to play video in my WPF project. I'd like to know how could I add an .ass formatted subtitle and render it in the FFME control with vsfilter or vsfiltermod. If I modified the .ass subtitle file, could FFME automatically using the modified subtitle? Does it possible to load an .ass file from memory stream? -- FFMediaElement
16:40
In Powershell, how do you select different parts of a string and output them to variable separately and display them in line? - HASJ Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create a progress bar for FFmpeg, much like python's FFpb and got far enough that I can capture FFmpeg's output to variable and save the needed info in variables, but only after it ends. This command saves each line outputted by FFmpeg into the $RedirectOutput variable as objects: $RedirectOutput = ffmpeg.exe -y -v quiet -stats -hide_banner -hwaccel cuda -i 'input' -c:v hevc_nvenc -preset slow -crf 18 -an -t 300 'output' 2>&1 $RedirectOutput then becomes: frame= 124 fps=0.0 q=14.0 size= 768kB (...)
15:34
python cut portion of video "Fastest way" - mhndev Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to cut out portion of video file using python(3.7.1) and ffmpeg in my flask (1.0.2) application, this is solution 1 # solution 1 from moviepy.editor import * from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip video = VideoFileClip('/app/videos/video.mkv'.subclip(10, 20) video.write_videofile('/app/videos/cutted_video.mp4') and here is result in flower panel screenshot. as you can see cutting out two videos takes more than two seconds. and this is solution 2 # (...) --
15:04
Own music discord bot: FFmpeg/avconv not found. Can someone help me? - CreepyGamerCat Newest 'ffmpeg' Questions - Stack Overflow

I guess the code is right because the bot finds a song and also joins a voice channel, but it can't play songs, because of this error. The ffmpeg.exe, ffmplay.exe, ffm.probe.exe and YouTube-dl.exe files are in the same folder. (directory: desktop>Discord Bot>node_modules>bin.) Maybe this is a wrong folder, I forgot a important file or whatever. I hope you can help. I use Visual Studio Code in JavaScript.
14:48
How to get the real, actual duration of an MP3 file (VBR or CBR) server-side - SquareCat Newest 'ffmpeg' Questions - Stack Overflow

I used to calculate the duration of MP3 files server-side using ffmpeg - which seemed to work fine. Today i discovered that some of the calculations were wrong. Somehow, for some reason, ffmpeg will miscalculate the duration and it seems to happen with variable bit rate mp3 files only. When testing this locally, i noticed that ffmpeg printed two extra lines in green. Command used: ffmpeg -i song_9747c077aef8.mp3 ffmpeg says: [mp3 ⓐ 0x102052600] max_analyze_duration 5000000 reached at 5015510 [mp3 ⓐ 0x102052600] Estimating duration (...)
12:52
ffmpeg : Conversion to mkv with compatibility with Samsung BluRay - Yehor Newest 'ffmpeg' Questions - Stack Overflow

I have several videos (FullHD resolution) which I want to convert to mkv format and play on my Samsung BluRay Player (model BD-J5900). Based on User Manual (http://media.datatail.com/docs/manual/252846_en.pdf , page 6) it supports mkv playing if codecs are: Video : H.264 BP/MP/HP Audio : MP3 Thus, based on https://ffmpeg.org/ffmpeg.html the command to convert it into proper format is: ffmpeg -i input.avi -f matroska -vcodec libx264 -acodec mp3 output.mkv It converts, but file is not playable on player. It say "Video format is (...) -- http://media.datatail.com/docs/manual/252846_en.pdf, https://ffmpeg.org/ffmpeg.html, https://trac.ffmpeg.org/wiki/Encode/H.264
14:06
How can I encode a .bmp by using libwebp - 向思皓 Newest 'ffmpeg' Questions - Stack Overflow

I'm new to Images encoding. I'm trying to encode .bmp images by using libwebp. Here is a function that I'm going to use. And I don't know how to transform a .bmp images to an array showed in libwebp(packed array of bytes). As you can see, I want to put the array into rgb_frame. Could you please help me? Thanks. int encodeWebpRGB(uint8_t *rgb_frame, int height, int width) FILE *out = fopen("test.webp", "wb"); WebPMemoryWriter memory_writer; WebPMemoryWriterInit(&memory_writer); WebPPicture picture; WebPConfig config; if (...)
11:58
Video with corrupted duration - Era Newest 'ffmpeg' Questions - Stack Overflow

I want to know how I can do this video : https://cdn.discordapp.com/attachments/546763235051700314/709949399551180910/C.webm (The corrupted duration https://prnt.sc/sm5188 ) "Duration: 154855045:51:26.21, start: -0.002000, bitrate: N/A" Do anyone have a command for do that, and with what (ffmpeg, [...]) Thanks you! -- https://cdn.discordapp.com/attachments/546763235051700314/709949399551180910/C.webm, https://prnt.sc/sm5188

Revisions : jQuery validator http://github.com/jzaefferer/jquery-validation

10:36
chore: added more release tasks - staabm Revisions : jQuery validator

chore: added more release tasks
10:32
Build: Updating the master version to 1.19.3-pre. - staabm Revisions : jQuery validator

Build: Updating the master version to 1.19.3-pre.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

10:37
How to copy ffprobe dumped metadata to a converted video - Quer Newest 'ffmpeg' Questions - Stack Overflow

I hope you're all doing safe! I'm using windows 10 and have lots of home videos, some of them are on .AVI format. I just discovered google photos don't backup .AVI videos, I tried converting it with GUI converters (FormatFactory, Wondershare, HandBrake) but when I tried to back it up, it wasn't preserving the metadata of my newly converted videos. I tried further research on this matter and I stumble upon ffmpeg (w/c the GUIs were using). I successfully converted .MOV while preserving metadata using: ffmpeg -i in.MOV -b:v 73000k -c:v libx264 -c:a (...) -- ffmpeg
07:50
ffmpeg - offset cropped part of a video - SomeWindowsUser Newest 'ffmpeg' Questions - Stack Overflow

Problem: I have a video that is made of two separate Videos next to each other ------------------------- | ------- | | |vid2 | | | | | vid1 | | ------- | | | | | | | ------------------------- the 2nd video is delayed in respect to the first, that's why I want to offset the second video by the difference For the cropping part, I figured using the crop-option might work, but I don't quite know, how to put the video back together, so that the cropped part of the video ends up at the same (...) -- crop-option
05:36
Re-broadcasting 24/7 stream with FFMPEG, using HLS. Original stream resets (probably), ffmpeg produces no HLS - MM PP Newest 'ffmpeg' Questions - Stack Overflow

I am rebroadcasting a live mp3 stream (probably it is using icecast - the admin requested me to re-broadcast it on another server). I am using ffmpeg for this task, using HLS playlist, to a public URL location. It works! But sometimes (I mean once per day, mostly in the night), the m3u8 playlist file disappears or the re-broadcast is not working and I need to kill the ffmpeg process on the server and start it again. ffmpeg -y -i "THE URL OF LIVE MP3" -f hls -hls_time 10 -hls_list_size 4 playlist.m3u8 I think there could be a problem with the original (...)
03:26
How to make a basic youtube music bot work with searching titles instead of the URL - Brandon Newest 'ffmpeg' Questions - Stack Overflow

Hello so i've followed this tutorial and added this code to my current bot to make it have a music bot function. Im wondering how to make the following code work with the youtube search function, for example right now I have to do !play URL but I would also like to be able to do !play name of song then the bot will search and play the most matched song. I am new to javascript but I know I shouldn't be looking for handouts, but some help would be appreciated. const Discord = require("discord.js"); const prefix, token = require("./config.json"); const (...)
03:11
FFmpeg blocking pipe until done? - ZeroTek Newest 'ffmpeg' Questions - Stack Overflow

I am currently working on a C++ Program (running on Linux) that should run FFmpeg as external Utility to encode the Audio Streams of a Video File to AC3 using popen() and capture the Output through the Pipe. Here is a Sample Code on how I tried to achieve this: int bufferSize = 2048; char buffer[bufferSize]; FILE *handle = popen("ffmpeg -i filename.mkv -map 0 -codec:v copy -codec:s copy -codec:a ac3 -f matroska -", "r"); int d = fileno(handle); while(read(d, buffer, bufferSize) > 0) // Process Data here (...)
01:43
Merging MP3 with MP4 using FFMPEG. Unexpected silent at the end - Alex Dourado Newest 'ffmpeg' Questions - Stack Overflow

I'm using ffmpeg -i video.mp4 -i audio.mp3 -c:a aac -shortest output.mp4 to join a part of an mp3 file to a video while converting to AAC, but the last 3 centiseconds of the audio are silent. Is there a way to fix this? Log: https://jpst.it/2aIIh - This one had 10 ms of silence at the end. -- https://jpst.it/2aIIh
00:39
Merge multiple videos to a split-screen video with FFMPEG - finnk Newest 'ffmpeg' Questions - Stack Overflow

I am new to ffmpeg, and I need some help: I am writing an App that merges multiple videos to a single split-screen video. The user can set the size and position of each video. I implemented the merging by using a video.js stream merger. This works great on my notebook, but it won't work on older devices, so I decided to do the merging server-side with ffmpeg. I am struggling to achieve this. I tried it using the xstack, but how can I set the position of each video?`And how can i tell ffmpeg to enable the audio of each video? Is it possible to use the xstack in (...) -- This is a snapshot of a possible user input
00:04
Could not write header for output file #0 (incorrect codec parameters ?): Broken pipe - Laura Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to generate audio waveform from an mp4 file as described here: https://github.com/bbc/audiowaveform. My mp4 file looks like http://www.w3.org/2001/XMLSchema-instance'> I wrote this command line: /ffmpeg-4.1.1/ffmpeg -i /cache/1268.mp4 -map 0:1 -f wav - | /opt/audiowaveform/audiowaveform --input-format wav (...) -- https://github.com/bbc/audiowaveform

22 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

20:54
hwcontext_vulkan: improve public header documentation - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: improve public header documentation Some things like using ImageLists were from a really old version that still used multiplanar images. [DH] libavutil/hwcontext_vulkan.h
11:30
oggdec: remove the oggparsedaala subdemuxer - Lynne git.videolan.org Git - ffmpeg.git/rss log

oggdec: remove the oggparsedaala subdemuxer The Xiph foundation never standardized either Daala nor its mapping in Ogg, and all files that were created are undecodable without knowledge of the git hash. [DH] MAINTAINERS [DH] libavformat/Makefile [DH] libavformat/oggdec.c [DH] libavformat/oggdec.h [DH] libavformat/oggparsedaala.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

23:48
How to get decoded audio samples in libav - Desp4 Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to decode a non-planar wav audio file with libav, but the output file seems corrupted and a bit longer than the original. Am I handling frames wrong when writing them to a file like this? fwrite(frame->extended_data[0], 1, frame->linesize[0], outFile); When opening the file in audacity it looks like this. Where two channels on top are from the original and the ones underneath are from a decoded file. -- this
20:44
Video streaming with FFMPEG, how can I draw text on video from an updating text file? [duplicate] - akouris Newest 'ffmpeg' Questions - Stack Overflow

Followed ⓐmatiaspl instructions to install ffmpeg-dl in order to live stream using Blackmagic's UltraStudio Mini Recorder on MacOS/OSX, with the following script: /usr/local/opt/ffmpegdecklink/bin/ffmpeg-dl -f decklink -i "UltraStudio Mini Recorder" -video_input sdi -format_code Hp25 -audio_input embedded -channels 2 -vf yadif=1 -c:v h264_videotoolbox -profile:v main -b:v 3M -pix_fmt yuv420p -color_range 1 -coder cabac -c:a aac_at -b:a 128k -threads 15 -f flv rtmp://a.rtmp.youtube.com/live2/your-streamkey My question is how can I draw text on that stream, from (...) -- @matiaspl instructions
20:44
ffmpeg crashes as file is in use when using drawtext filter reload - Jake Newest 'ffmpeg' Questions - Stack Overflow

Recently whilst working inside of FFMPEG ive been trying to run a script which shows the current artist based on what a textfile says the current artist is. Loading this every frame, however the file is also being written to and thus when being written to the stream crashes with.. The text file 'artist.txt' could not be read or is empty Error while filtering Failed to inject frame into filter network: Invalid argument The line im using to write the artist.txt into the content is as follows.. -vf (...)
20:37
Using ffmpeg to convert mp3 to mp4 - how to draw filename on generated video? - akouris Newest 'ffmpeg' Questions - Stack Overflow

Using trial and error I am using the following script on an OSX, to bulk convert a whole folder full of mp3 files, to mp4, by looping a specific video file: for i in *.mp3; do /usr/local/bin/ffmpeg -stream_loop -1 -i /path_to_filename.mp4 -c copy -v 0 -f nut - | /usr/local/bin/ffmpeg -thread_queue_size 10K -i - -i "$i" -c copy -map 0:v -map 1:a -shortest "$(basename "$i" )".mp4 ; done; for f in *.mp3.mp4; do mv -v "$f" "$f/.mp3.mp4/.mp4"; done How can I also print/add/burn the mp3 filename, without the extension (.mp3), as an additional video layer at the bottom of (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

20:59
movenc: Fix accidental leftover duplication from 1aec1fbcc595 - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

movenc: Fix accidental leftover duplication from 1aec1fbcc595 Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libavformat/movenc.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

19:23
FFMPEG Stream not showing in Youtube Dashboard - Jonas Dautel Newest 'ffmpeg' Questions - Stack Overflow

I am trying to stream a webcam from my Raspberrypi 4to Youtube using FFmpeg. The command doesn't show an error but youtube doesn't display any data. Here is the exact command I used ( i recompiled the FFmpeg library) : raspivid -o - -t 0 -vf -hf -fps 30 -b 6000000 | ffmpeg -re -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -f h264 -i - -vcodec copy -acodec aac -ab 128k -g 50 -strict experimental -f flv rtmp://a.rtmp.youtube.com/live2/STREAMCODE here is a sample output of the comand : mmal: Cannot read camera (...)
18:19
Stream data chunk with ffmpeg - Amit Levy Newest 'ffmpeg' Questions - Stack Overflow

I have a react native app, and i'm using 'react-native-sound-recorder' to capture audio data chunks. AudioRecord.on('data', (data) => // use data here ); I'm able to save the file to file system, but I would like to stream the 'data' variable (the audio data chunk) using ffmpeg to server, but can't find the proper ffmpeg command (all i found was commands to stream from specific input or (...)
17:54
using ffmpeg to convert gif to mp4 , output doesn't play on android - Mahdi Newest 'ffmpeg' Questions - Stack Overflow

I just use the following command to convert a gif file to mp4 but the resulting mp4 file doesn't play in android default video player . what did I wrong ? is there any aditional steps should I take to produce android playable mp4 files ? $ ffmpeg -f gif -i infile.gif outfile.mp4 my test gif file : Test Gif File My desktop played the output.mp4 very well using VLC Media Player and also MX Player on my android device played the video file without any (...) -- Test Gif File
14:32
how to play video with an Image onit in ffmpeg [closed] - Naveen Kumar Newest 'ffmpeg' Questions - Stack Overflow

https://i.stack.imgur.com/Yqt2i.jpg Need to play a video with an image over it in ffmpeg i have tried ffmpeg -i s.mp4 -i l.png -filter_complex 'overlay=10:main_h-overlay_h-10' avi - | ffplay - but giving "Error initializing complex filters" even though i am using exact sysntax in ffmpeg documentation ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.2.1 (GCC) 20200122 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls (...) -- https://i.stack.imgur.com/Yqt2i.jpg
14:21
ffmpeg gif with color instead transparency - daniel Newest 'ffmpeg' Questions - Stack Overflow

I create a gif with transparency by: ffmpeg -y -i _frame%d.png -vf palettegen=reserve_transparent=1 palette.png ffmpeg -framerate 8 -i _frame%d.png -i palette.png -lavfi paletteuse=alpha_threshold=128 -gifflags -offsetting animation.gif I need also to create another gif from it with a specific color instead of the transparency. What would be a fast way to do that?
14:16
How to find what 2 sounds have in common? - ThomazPom Newest 'ffmpeg' Questions - Stack Overflow

Thank you for your time. I have a video, with 2 audios tracks (same lenght) (audio1 : en, audio2: jap). I try to figure how to export an audio where theses track are identical (blank sound otherwise) or better, the times periods where these have sound in commmon I think ffmpeg is a good start and i use it occasionally, but this one is a bit too hard for me. Any ideas ? Many thanks, Sorry for my aproximate english. Thomaz >EDIT Got it with scypi. from scipy.io.wavfile import read, write en = (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

12:28
avfilter/af_aiir: export normalize option - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/af_aiir: export normalize option And enable it in all modes by default. [DH] doc/filters.texi [DH] libavfilter/af_aiir.c
14:14
avfilter/af_aiir: move response drawing as last step - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/af_aiir: move response drawing as last step [DH] libavfilter/af_aiir.c
14:12
avfilter/af_aiir: fix first denominator calculation - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/af_aiir: fix first denominator calculation [DH] libavfilter/af_aiir.c
12:37
avfilter/af_aiir: add more descriptive options aliases - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/af_aiir: add more descriptive options aliases [DH] doc/filters.texi [DH] libavfilter/af_aiir.c

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

12:55
10.29.0 - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

10.29.0
12:54
Use CSS media queries to define file name display. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

Use CSS media queries to define file name display. Improve responsive table layout.

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

12:17
Serving rtmp on port 1935 - JJ The Second Newest 'ffmpeg' Questions - Stack Overflow

I've been trying to get ffmpeg to stream in rtmp but connection to port 1935 is always refused. I really don't know what else I can do to allow this connection. Here is what specs I'm running. Ubuntu 18.04 (tried with 19.04) however same issue - here is why I think I've made a mistake No Nginx installation at the moment FFMPEG "ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)" This is the script I run: ffmpeg -i "test.mp4" -c:v copy (...)
12:12
How to display name and phone number of a student as dynamic watermark (randomly floating on entire screen) in videos of a paid online video course? - Arjun Newest 'ffmpeg' Questions - Stack Overflow

I wish to make a Learning Management System using PHP-MySQL and wish to put videos from my computer or embed YouTube videos on it. Videos will be displayed to only those students who have paid for the course. I want to show their name and phone number (which they'll be giving during Sign Up) as a dynamic watermark floating randomly on all the videos of that course to prevent screen capturing of the video. How to do it and how to call those Name and Phone Number values from the MySQL (...)
11:02
convert mp4 to hls but with variable segments size - Pavel Angel Mendoza Villafane Newest 'ffmpeg' Questions - Stack Overflow

I saw several examples to change mp4 container to hls using ffmpeg easily with something like this: ffmpeg -i input.mp4 -profile:v baseline -level 3.0 -s 640x360 -start_number 0 -hls_time 10 -hls_list_size 0 -f hls index.m3u8 I observed that usually the last fragment could be really different with the others (because it is like an offset only). Then I guess that a fix segment length is not mandatory I have been asking, is it possible to change the size of another fragments? For example, fix hls_time=10 for all the segments except for segments (1) or (1, (...)
10:45
How to install FFMPEG into GCP - Easy Tricks For Android Newest 'ffmpeg' Questions - Stack Overflow

How to install FFMPEG in Google Cloud Shell. is that possible? screenshot of error sorry for my bad language -- screenshot of error
09:14
Can't convert audio files to mp3 using ffmpeg in laravel on linux server - Tieria Newest 'ffmpeg' Questions - Stack Overflow

I installed FFmpeg, php-ffmpeg, laravel-ffmpeg. Then I tried to convert Video and Audio files to mp3 on laravel. Then it worked properly on Windows10 XAMPP. However, when I installed the same on my linux shared server, get error: Class 'FFMpeg\\Format\\Audio\\mp3' not found and A composer dependency is missing You might be missing a composer dependency. A possible package that was found is php-ffmpeg/extras. So, I did composer require php-ffmpeg/extras and installed, however, still it produces same error. So What would it be (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

00:08
avformat/utils: Set stream side-data size even without side-data - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/utils: Set stream side-data size even without side-data Reviewed-by: James Almer <jamrialⓐgmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/utils.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

04:49
Xamarin FFMpeg Add Progress Bar with Percentage - seopower Newest 'ffmpeg' Questions - Stack Overflow

I am doing some video conversion in Xamarin Android and using https://github.com/neurospeech/xamarin-android-ffmpeg I would like to show a ProgressDialog with percentage completed, below is the code I am using: Action onProgress; Action logger = null; int total = 0; int current = 0; var dialog = new ProgressDialog(this); dialog.SetTitle("Please wait, creating video."); dialog.Indeterminate = false; dialog.SetProgressStyle(ProgressDialogStyle.Horizontal); dialog.SetCancelable(false); dialog.CancelEvent += (s, e) (...) -- https://github.com/neurospeech/xamarin-android-ffmpeg
04:46
setting up ffmpeg on xampp server - altruios Newest 'ffmpeg' Questions - Stack Overflow

okay, I've scoured. and the best I have found are 7 year old videos with outdated information:changes in file structure on the ffmpeg(no php files) and further reading as not enlightened me on how to get this working. the goal: to run a shell_exec script that uses ffmpeg to convert images in a server folder into a movie. however (since I don't know how to get the server to 'see' ffmpeg, it never runs from a php script. shell_exec works (calculator opens up, and I can open a single image off of the server - so I know the path is correct) but In (...)
03:20
Getting .mp4 from .f4m stream url - Gil Sand Newest 'ffmpeg' Questions - Stack Overflow

Currently I have the following url http://vpl.rtl.be/z//2018/08/21/CA00001318626_,400,600,800,1200,1800,.mp4.csmil/manifest.f4m?hdcore=1 which contains an .f4m file, which directs to an mp4 file. I can't find a way to get that mp4 from that file (i just need the direct mp4 url or file). How should I proceed? I have tried using ffmpeg or simply reading the file, with no luck. -- http://vpl.rtl.be/z//2018/08/21/CA00001318626_,400,600,800,1200,1800,.mp4.csmil/manifest.f4m?hdcore=1
03:46
Problem using FFmpeg to convert MKV with A/52 B audio (aka E-AC3) to AAC - nxl4 Newest 'ffmpeg' Questions - Stack Overflow

I've got a number of MKV files which are (per VLC) encoded with A/52 B (aka E-AC3) audio codecs. I would like to convert these to AAC, but I'm having trouble doing this with FFmpeg. The command I'm running is: ffmpeg -hwaccel auto -i original_file.mkv -y -c:v copy -c:a aac output_file.mkv The command completes without error. However, the generated file has no audio when I play it. FFmpeg's output is as follows: ffmpeg version 4.2.2-1ubuntu1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-3ubuntu1) (...)
00:41
All ffmpeg type in one savedialog filter? [closed] - T.Dat Newest 'ffmpeg' Questions - Stack Overflow

dlg.Filter = "Bitmap Image (.bmp)|*.bmp|Gif Image (.gif)|*.gif |JPEG Image (.jpeg)|*.jpeg |Png Image (.png)|*.png |Tiff Image (.tiff)|*.tiff |Wmf Image (.wmf)|*.wmf"; example like a code above, but with all ffmpeg supported selection? thanks
00:04
Libavformat | Hidden RTP channel inside RTSP - Max Ridman Newest 'ffmpeg' Questions - Stack Overflow

The problem: I'm working with libavformat (ffmpeg) library to grab RTSP stream. I have accidently discovered that when my test RTSP grabber will represent itself with a custom "RTSP USER AGENT NAME" - it starting to receive a secret (hidden) RTP channel inside main RTSP stream. In receiving TCP stream I can see 3 Interleaved channels. But RTSP SDP describes only 2 channels (0-1 Video, 2-3 Audio). The data I need flies in the 3 stream (WireShark tells me its channel 0x04) The problem is that the source will not describe this hidden channel in (...)

21 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

02:03
avutil/mem: Use max_alloc_size as-is - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avutil/mem: Use max_alloc_size as-is The size of a single allocation performed by av_malloc() or av_realloc() is supposed to be bounded by max_alloc_size, which defaults to INT_MAX and can be set by the user; yet currently this is not completely honoured: The actual value used is max_alloc_size - 32. How this came to be can only be understood historically: a) 0ecca7a49f8e254c12a3a1de048d738bfbb614c6 disallowed allocations > INT_MAX. At that time the size parameter of av_malloc() was an unsigned and the commentary added ("lets disallow possible ambiguous cases") indicates that (...)
13:00
movenc: Fix conversion of the first frame for extradata-less H264/HEVC - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

movenc: Fix conversion of the first frame for extradata-less H264/HEVC Move the copying of the frame to vos_data further up in the function, so that when writing the actual frame data for the first frame, it's clear that the stream really is in annex b format, for the cases where we create extradata from the first frame. Alternatively - we could invert the checks for bitstream format. If extradata is missing, we can't pretend that the bitstream is in mp4 form, because we can't even know the NAL unit length prefix size in that case. Also avoid creating extradata for AVC intra. (...)
10:03
cbs_h265: Fix use of an uninitialized variable - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

cbs_h265: Fix use of an uninitialized variable This fixes test failures in fate-cbs-hevc-* in certain configurations since c53f9f436440be4e18. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libavcodec/cbs_h265_syntax_template.c
10:50
avfilter/af_aiir: fix first delay value - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/af_aiir: fix first delay value [DH] libavfilter/af_aiir.c
23:57
avformat/matroskaenc: Remove pointless casts - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/matroskaenc: Remove pointless casts by using a const void * pointer as an intermediate. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/matroskaenc.c
23:10
avformat/matroskaenc: Don't use stream side-data size - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/matroskaenc: Don't use stream side-data size av_stream_get_side_data() tells the caller whether a stream has side data of a specific type; if present it can also tell the caller the size of the side data via an optional argument. The Matroska muxer always used this optional argument, although it doesn't really need the size, as the relevant side-data are not buffers, but structures. So change this. Furthermore, relying on the size also made the code susceptible to a quirk of av_stream_get_side_data(): It only sets the size argument if it found side data of the desired (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

22:44
Writing a Custom Blend for Softlight - Jonas Newest 'ffmpeg' Questions - Stack Overflow

Lately I've been messing around with ffmpeg's blending modes and noticed their algorithms are not entirely the same as in Photoshop. I'm interested in Softlight blend and will use it as an example to illustrate my issue. First thing's first, I was able to mimic Photoshop's softlight with the blend and geq filters, but it's painfully slow with video inputs. Problem of geq I guess. ffmpeg -i top.png -i bottom.png -filter_complex (...) -- formula,
22:32
Video Resolution 1920 x 1080 - Satish Kumar Newest 'ffmpeg' Questions - Stack Overflow

I have video of Resolution 1920X1080 (16:9 aspect ratio), when played its cropped with black box all sides. how to remove the blaxk boxes to get the 1920x1080 video. pl help in on FFmpeg syntax. Below the audio and video details Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Maths Logic.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.19.102 Duration: 00:43:11.24, start: 0.000000, bitrate: 1475 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), (...)
20:34
ffmpeg - Buffer the whole output file before writing to OutputStream - daldoy Newest 'ffmpeg' Questions - Stack Overflow

I'm building a transcoder on AWS Lambda. It reads a video file (of any format) from S3 and it outputs an mp4 file to S3. When using ffmpeg to stream the output file to S3, it is required to use "-movflags frag_keyframe", and the generated file will be a fragmented mp4. Is there any way I can write to an OutputStream and get a non-fragmented mp4? Something like buffering the whole output file before writing it to the OutputStream? Discarded solutions: Write the output file on the /tmp storage of the Lambda function and then copy the (...)
22:01
laravel ffmpeg upload video in amazon s3 failed 504 gateway Time-out - Ahmed Al-Rayan Newest 'ffmpeg' Questions - Stack Overflow

Why after uploading a video size of more than 1 Giga, I see a problem in the nginx 504 gateway timeout preventing me from completing the processing process. The meaning of the video after uploading starts the processing process and because of this problem it does not go to processing use laravel ffmpeg and use amazon s3 service to store the videos on it and the entire site uploaded to Digital hosting
20:15
ffmpeg video not working for Instagram, Snapchat, etc - hungry_ Newest 'ffmpeg' Questions - Stack Overflow

I’m building a web app that combines a photo and an audio file to create a video. The video seems to export fine and I can view it on my phone, but when I upload to social media the video just skips, unable to play. These are my ffmpeg settings. Thanks! `Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 640x852 [SAR 639:640 DAR 3:4], q=-1--1, 25 fps, 12800 tbn, 25 tbc`
19:57
VLC stops the video before the end of the video - user2342558 Newest 'ffmpeg' Questions - Stack Overflow

VLC stops video before the end of video and prints this in terminal: [h264 ⓐ 0x7ff318ce36c0] co located POCs unavailable [h264 ⓐ 0x7ff318ce36c0] mmco: unref short failure [h264 ⓐ 0x7ff318c7f0c0] co located POCs unavailable [h264 ⓐ 0x7ff318c9da60] mmco: unref short failure [h264 ⓐ 0x7ff318ce36c0] co located POCs unavailable [h264 ⓐ 0x7ff318cff780] mmco: unref short failure [h264 ⓐ 0x7ff318d37b00] co located POCs unavailable [h264 ⓐ 0x7ff318c7f0c0] co located POCs unavailable [h264 ⓐ 0x7ff318c9da60] mmco: unref short failure [h264 ⓐ (...)
19:18
ffmpeg -- adding capture timestamp to.jpg/.png frames when converting from .mp4 - himynamesdave Newest 'ffmpeg' Questions - Stack Overflow

I have a 360 video (.mp4) shot using a GoPro Fusion with embedded gps (gpmd track). I want to break the video into frames (1 per second), either into png or jpg files, whilst preserving certain global metadata, like camera make, but most importantly timestamps. The video itself only has the start date/time and duration in the metadata. My idea was to first extract the metadata using exiftool, break the video down into frames using ffmpeg, and then geocode the frames based on times using exiftool. Though I have not been able to use ffmpeg to add (...) -- https://drive.google.com/file/d/1XspMMI4Vd4eX4yLJ-FAwKOadhYzmjxH1/view?usp=sharing, https://gitlab.com/snippets/1978974
18:57
Why DASH video fragments are not reproducible nor readable with ffmpeg? - salgarji Newest 'ffmpeg' Questions - Stack Overflow

I'm streaming live video using DASH through FFmpeg. Everything's OK, fragments are generated, and the mpd file, but I wanted to have reproducible independent fragments. Video players won't open those fragments. I guess it's because they are mpd file dependant. My question would be: can those fragments be generated in a way that they are reproducible? I don't know if it has something to do to the frames I P B or just the way dash cuts video information, in a way that it only saves 'timeline' on the mpd... My purpose is not only being able to (...)
18:31
FFMpeg Error on bottom VSTACK image to video [duplicate] - seopower Newest 'ffmpeg' Questions - Stack Overflow

Using Xamarin and https://www.nuget.org/packages/Xamarin.Android.FFmpeg/ I am trying to vertically stitch an image on a video at bottom (not overlap), so that I have a banner running under video without affecting original video height. The command I am running is (removed original path): Command: ffmpeg -y -i /path/source.mp4 -i /path/share.jpg -filter_complex "[1:v]scale=640:-1[bottom];[0:v][bottom]vstack" /output/temp.mp4 But getting error like this: ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers built with gcc (...) -- https://www.nuget.org/packages/Xamarin.Android.FFmpeg/
18:00
Decode audio file with missing header - Eyah Newest 'ffmpeg' Questions - Stack Overflow

I have a audio file (according to ffmpeg, it's a MP3) and I tried to decode it with ffmpeg but it's not working. I tried to repair the file with ffmpeg before I convert it but it didn't work either. Here's the hexadecimal data representation: 048c 63b8 8017 0020 3ac1 7b96 a4a3 87bf be1f 08ff e102 ba51 d85b 1485 3ec7 ff32 78c1 7726 6bbc ef67 2e7d 7672 fdd8 7df9 e1dd aff7 87e7 e58f 7edf bf7c f654 d5ee f6f7 dc4b 299d fd83 f3db 06aa 65a6 edb3 7ac7 f9ef 659b 9d9f 3fad ddb6 7a17 38ad 0341 2e47 f643 83b6 cbd4 7343 9bf3 e4bf d8e8 (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

17:20
avcodec: deprecate Lossless and Intra Only encoder capabilites - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec: deprecate Lossless and Intra Only encoder capabilites Both are codec properties and not encoder capabilities. The relevant AVCodecDescriptor.props flags exist for this purpose. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] doc/APIchanges [DH] libavcodec/audiotoolboxenc.c [DH] libavcodec/avcodec.h [DH] libavcodec/avuienc.c [DH] libavcodec/dnxhdenc.c [DH] libavcodec/dvenc.c [DH] libavcodec/flacenc.c [DH] libavcodec/huffyuvenc.c [DH] libavcodec/jpeglsenc.c [DH] libavcodec/lclenc.c [DH] libavcodec/libopenjpegenc.c [DH] libavcodec/librsvgdec.c [DH] libavcodec/ljpegenc.c (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

15:55
How to use MeidaToolkit.NetCore to convert videos in Asp Core 2 - AlTheSwede Newest 'ffmpeg' Questions - Stack Overflow

I'm using MediaToolkit.NetCore which is in an early stage in order to convert videos into mp4 format but I have not been able to get it to work on ASP Core 2. With MeidaToolkit.NetCore I tried this: var inputFile = new MediaFile Filename = ⓐ"C:\\Path\\To_Video.flv"; var outputFile = new MediaFile Filename = ⓐ"C:\\Path\\To_Save_New_Video.mp4"; using (var engine = new Engine()) engine.Convert(inputFile, outputFile); But the problem is that ffmpeg.exe is not embedded in library binaries so I get an error on new Engine(). In (...)
13:43
what FFMPEG performance settings to use for processing videos for the web - eAbi Newest 'ffmpeg' Questions - Stack Overflow

I have a few questions regarding usage of ffmpeg for processing videos for the web. I'm a beginner so please bear with me (although I read some docs on the internet) Performance First of all, given the fact that FFMPEG utilizes all cores at 100%, what is the actual parallelism efficiency? Let's assume the following scenario. I have a video (fullHD, doesn't matter what encoders / compression format was used to obtain the video) and I want to resize (downscale) to various sizes (e.g. 240px, 480px and 720px height) using mp4 format (thus (...)
13:04
How do you combine videos at specific X and Y positions with FFMPEG? - Adrian Elder Newest 'ffmpeg' Questions - Stack Overflow

If I have multiple video files, and I want to combine videos at specific x/y coordinates, how would I go about doing that? I know that the xstack filter allows you to position videos using a column/row notation. Say I have multiple different size rectangle frames, and I knew the x/y coordinate of the top left corner, how could I position these using that value? See the image: --
10:26
Discord bot python: discord.errors.ClientException: ffmpeg was not found - S. Klore Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to make a discord bot that plays music in a voice channel. It connects to the voice channel, but doesn't play anything. It also gives an error in the console. I'm on Windows and I'm using the discord.py rewrite. My code: import discord, random, datetime, asyncio, nacl, ffmpeg TOKEN = 'What token' client = discord.Client() ⓐclient.event async def on_message(message): if message.content.lower() == '$play': if message.content.lower() == '$play': channel = (...)
10:50
ffmpeg how to allow a file extension - Juddy Newest 'ffmpeg' Questions - Stack Overflow

New ffmpeg version check for file extension due to security issue in ffmpeg.org that use #EXT-X-KEY:METHOD=AES-128 since the key usually doesn't use file extension or use *.key extension so example ffmpeg -i "C:\\streamingtest.m3u8" -c copy "test.ts" inside the m3u8 I have : #EXT-X-KEY:METHOD=AES-128,URI="C:/keytest.key" And ffmpeg will spew an error [hls,applehttp ⓐ 0000000000dc6460] Filename extension of 'C:/keytest.key' is not a common multimedia extension, blocked for security (...) -- in ffmpeg.org
10:28
How to fix ffmpeg not being found | discord.py - xupaii Newest 'ffmpeg' Questions - Stack Overflow

I've got a music bot set up using the discord.py github examples, and that all works. The issue is my ffmpeg. When getting a bot to join, I receive the error: discord.ext.commands.errors.CommandInvokeError: Command raised an exception: ClientException: ffmpeg was not found.. I do have FFmpeg installed, the folder is in C:\\FFmpeg. Not too sure why it isn't finding my FFmpeg, so help is appreciated
09:59
how do i make my discord.py bot play mp3 in voice channel? - ropke Newest 'ffmpeg' Questions - Stack Overflow

I'm a beginner in Python and I have recently started making a discord bot for some friends and I. The idea is to type !startq and have the bot join the channel, play an mp3 file that is locally stored in the same folder that the bot.py is in also. import discord, chalk from discord.ext import commands import time import asyncio bot = commands.Bot(command_prefix = "!") ⓐbot.event async def on_ready(): print("Bot is ready!") ⓐbot.command() async def q5(ctx): await ctx.send("ⓐhere QUEUE STARTING IN 5 (...)
07:36
Getting FFProbe Information With Python - Robin Hood Newest 'ffmpeg' Questions - Stack Overflow

I've been attempting to figure this out for forever now (I'm new to programming) and I can't figure it out. I'm attempting to build a script that will test the file, and give me output from which I can get information like "Audio Format" that I can then put into the filename. However, I can't even get the script to return any file info. I've hit a wall at inserting an input file... So at this point I just need help getting it to spit out info based on the argvs I've thrown in. Hopefully I'll be able to figure out how to parse the (...)
06:47
how to play nginx & rtmp based hls live stream on a remote machine - Ram Newest 'ffmpeg' Questions - Stack Overflow

I have installed nginx, rtmp and ffmpeg based hls live streaming working on ubuntu machine. I use this command to stream hls sudo ffmpeg -re -i sample.mp4 -vcodec libx264 -vprofile high -g 30 -acodec aac -strict -2 -f flv rtmp://localhost/show/stream2 when I try to play this stream using VLC using following commands on the same machine it works well. http://myIp:8080/hls/stream2.m3u8 or http://localhost:8080/hls/stream2.m3u8 However when I try to access from remote computer connected to same WIFI, not able to play. (...)
01:56
FFMPEG Add 2 watermarks (txt + png) to a video - razz Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to add 2 watermarks to a video, one should be a .png file and the second some moving/scrolling text. Png = fixed at right bottom Text = Moving/scrolling from the top right to the top left. Starting at 50% of total video length (appear at 1:00 if total length is 2:00) and disappearing in 20 seconds. I already use a command to encode the video and add a logo at the right bottom but having trouble adding scrolling text at the same time. -i logo.png -filter_complex "overlay=main_w-overlay_w:main_h-overlay_h-4" -keyint_min 20 -vcodec (...)
01:01
how to fix Non-monotonous DTS in output stream 0:1; when using ffmpeg - xiao xin Newest 'ffmpeg' Questions - Stack Overflow

When I use ffmpeg to convert m3u8 to mp4, I get some warning, ffmpeg -i xx.m3u8 -c copy demo.mp4 warning is Non-monotonous DTS in output stream 0:1; previous: 3277744, current: 3276712; changing to 3277745. This may result in incorrect timestamps in the output file. Non-monotonous DTS in output stream 0:1; previous: 3277745, current: 3277736; changing to 3277746. This may result in incorrect timestamps in the output file. what should I do to fix (...)

20 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

21:24
avformat/matroskadec: Beautify matroska_parse_laces() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/matroskadec: Beautify matroska_parse_laces() Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/matroskadec.c
21:58
hwcontext: add av_hwdevice_ctx_create_derived_opts - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext: add av_hwdevice_ctx_create_derived_opts This allows for users who derive devices to set options for the new device context they derive. The main use case of this is to allow users to enable extensions (such as surface drawing extensions) in Vulkan while deriving from the device their frames are on. That way, users don't need to write any initialization code themselves, since the Vulkan spec invalidates mixing instances, physical devices and active devices. Apart from Vulkan, other hwcontexts ignore the opts argument since they don't support options at all (or in VAAPI (...)
23:11
mfenc: Fix setting has_b_frames for max_b_frames == 1 - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

mfenc: Fix setting has_b_frames for max_b_frames == 1 This was a mistake in my own additions in 050b72ab5ef318605b305aa6cb920e8b52f1002e. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libavcodec/mfenc.c
22:08
mfenc: Fall back to avctx->time_base if avctx->framerate isn't set - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

mfenc: Fall back to avctx->time_base if avctx->framerate isn't set The framerate field is the one users are supposed to set, but not all users might be setting it, so it might be good to fall back time_base in that case. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libavcodec/mfenc.c
05:59
avcodec/decode: remove ff_decode_bsfs_uninit() - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec/decode: remove ff_decode_bsfs_uninit() It's been a wrapper for a simple av_bsf_free() call since c96904f525. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/decode.c [DH] libavcodec/decode.h [DH] libavcodec/utils.c
21:52
avformat/ttaenc: Defer freeing dynamic buffer - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/ttaenc: Defer freeing dynamic buffer The TTA muxer writes a seektable in a dynamic buffer as it receives packets and when writing the trailer, closes the dynamic buffer using avio_close_dyn_buf(), writes the seektable and frees the buffer. But the TTA muxer already has a deinit function which unconditionally calls ffio_free_dyn_buf() on the dynamic buffer, so switching to avio_get_dyn_buf() means that one can remove the code to free the buffer; furthermore, it also might save an allocation if the seektable is so small that it fits into the dynamic buffer's write buffer or if (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

23:47
How to use the 'shortest' argument with ffmpeg-python - MyNameIsTrez Newest 'ffmpeg' Questions - Stack Overflow

I'm using ffmpeg-python for my first time. I'm trying to use the shortest=1 argument in ffmpeg.output(), but my program keeps giving me errors when I use it. I want to replace the audio from foo.mp4 with the audio from bar.webm, while keeping the visuals of foo.mp4. I got this working, but the problem is that ffmpeg.concat by default keeps playing the audio from bar.webm while the visuals from foo.mp4 have stopped playing. According to this FFmpeg docs page, this is the intended behaviour: "The concat filter will use the duration of the longest stream in each (...) -- ffmpeg-python, this FFmpeg docs page
23:30
FFmpeg inaccurate outputs [duplicate] - Shlomi Newest 'ffmpeg' Questions - Stack Overflow

Possible Duplicate: ffmpeg: videos before and after conversion aren't the same length Recently, I've been trying to use FFmpeg for an application which requires a VERY accurate manipulation when it comes to the time parameter (milliseconds resolution). Unfortunately, I was surprised to find out that FFmpeg's manipulation functionalities return some inaccurate results. Here is the output of 'ffmpeg': ffmpeg version 0.11.1 Copyright (c) 2000-2012 the FFmpeg developers built on Jul 25 2012 19:55:05 with gcc (...)
21:51
Maintaining aspect ratio with FFmpeg - 0-alpha Newest 'ffmpeg' Questions - Stack Overflow

I need to convert a bunch of video files using FFmpeg. I run a Bash file that converts all the files nicely, however there is a problem if a file converted is not in 16:9 format. As I am fixing the size of the screen to -s 720x400, if the aspect ratio of the original is 4:3, FFmpeg creates a 16:9 output file, screwing up the aspect ratio. Is there a setting that allows setting an aspect ratio as the main parameter, with size being adjusted (for example, by fixing an X or Y dimension (...)
20:03
Add subtitles to multiple files at once - Paul Filipenco Newest 'ffmpeg' Questions - Stack Overflow

I have a folder with episodes called ep and a folder with subtitles called sub Each episode has corresponding subtitles and i need to bulk add them with ffmpeg. I've read that i can add subtitles with the following command: ffmpeg -i video.avi -vf "ass=subtitle.ass" out.avi But that only does it one file at a time. Is there a bulk variant? Some useful info: ls ep prints - Ep.mkv ls sub prints - (...)
19:59
Is there any way that I can speed up the ffmpeg processing time - Ahmed Al-Rayan Newest 'ffmpeg' Questions - Stack Overflow

I am facing a problem with the processing process. I use a real joint server in a digital hosting package of $ 10 and use cloud service from Amazon s3. The problem is when uploading a video, whatever the size of the video, whether its size is 1 megabyte or 2 Giga. After the upload process, the processing process starts to upload, there is no problem But when the processing process takes a very long time so that I cannot complete it, what is the solution to that, is there a problem for me or is this process normal? I use laravel-ffmpeg and through laravel queue I am cutting the video (...)
19:22
ffmpeg facebook live video download issues [closed] - HakanK Newest 'ffmpeg' Questions - Stack Overflow

What is the best working code line for ffmpeg to record Facebook live video stream? Kind regards Hakan
19:10
On the fly transcoding and HLS streaming with ffmpeg - syfluqs Newest 'ffmpeg' Questions - Stack Overflow

I am building a web application that involves serving various kinds of video content. Web-friendly audio and video codecs are handled without any problems, but I am having trouble designing the delivery of video files incompatible with HTML5 video players like mkv containers or H265. What I have done till now, is use ffmpeg to transcode the video file on the server and make HLS master and VOD playlists and use hls.js on the frontend. The problem, however, is that ffmpeg treats the playlist as a live stream playlist until transcoding is complete on the whole file and then it (...)
18:33
ffmpeg — how to extract all frames from video, then rebuild video precisely from extracted frames? - JonathanX64 Newest 'ffmpeg' Questions - Stack Overflow

I'm doing a project where I need to alter some frames of a video file. I'm working with a terminal commands right now, but they will eventually turn into a bash or a Python script. To extract frames, I'm using ffmpeg command: ffmpeg -i "file.mp4" "frames/out-%03d.bmp" This works and does what I need. But then, after I altered some of the BMPs, I need to rebuild the file with them. I'm trying to do that with command: ffmpeg -i frames/out-%03d.bmp result.mp4 But I'm facing a problem here: I need to build a (...)
18:27
ffmpeg set watermark using java - SynixQueen Newest 'ffmpeg' Questions - Stack Overflow

I want to add a watermark( like .png) to a video. This is the way for the command line: ffmpeg -i input.mp4 -i watermark.png -filter_complex "overlay=1500:1000" output.mp4 found >here my Implementation so fairs like that: FFmpegResult result = FFmpeg.atPath(Setup.getBin()) .addInput(UrlInput.fromPath(inFile.toPath())) .addInput(UrlInput.fromPath(picture.toPath()) .setDuration(10, TimeUnit.SECONDS)) // set duration time .setComplexFilter(FilterGraph.of( Filter.withName("overlay") (...) -- FFmegDokumentation
18:19
how to play video with an Image onit in C# [closed] - Naveen Kumar Newest 'ffmpeg' Questions - Stack Overflow

https://i.stack.imgur.com/Yqt2i.jpg Need to play a video with an image over it in c# -- https://i.stack.imgur.com/Yqt2i.jpg
17:16
tfds.features.Video Usage for video decoding in tensorflow 2 - Sandeep Newest 'ffmpeg' Questions - Stack Overflow

I am trying to decode a video in tensorflow 2 using tfds.features.Video , so that the output is a "tf.Tensor of type tf.uint8 and shape [num_frames, height, width, channels]" using following code : import numpy as np import pandas as pd import tensorflow as tf import tensorflow_datasets as tfds df_trains= pd.DataFrame() df_trains['video_files']= ['aa.mp4'] files_ds = tf.data.Dataset.from_tensor_slices(df_trains.video_files) video_class = tfds.features.Video(shape=(None, 1080, 1920,3), encoding_format='png', (...)
17:11
How can I get the resolution (width and height) for a video file from a linux command line? - Jeremy Logan Newest 'ffmpeg' Questions - Stack Overflow

I've been digging through the mplayer/mencoder and ffmpeg documentation and I can't seem to come up with anything. I'm not especially picky as to the output format as I can use a regular expression to pull it out, I just can't seem to get the data in the first place.
15:02
Bash script stops execution of ffmpeg in while loop - why? - Alex Monthy Newest 'ffmpeg' Questions - Stack Overflow

I have this bash script for converting .mp4 video to .mp3 audio. It runs, but does the loop only once, though there are more mp4 files in /home/myname/mp4dir. The script converts the first .mp4 file it finds to .mp3, unless there is already an .mp3 file. This should be done in a loop, but after the first call to ffmpeg the script stops. Why? #!/bin/bash find /home/myname/mp4dir -name "*.mp4" | while read f do fOut=`echo $f | sed s/mp4/mp3/` echo "convert $f => $fOut" if ! test -f $fOut then ffmpeg -i $f -vn -f mp3 (...)
15:01
ffmpeg: Execute command in while loop [duplicate] - mcExchange Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to execute a ffmpeg command on a list of video files, stored in an ascii file. I simply tried to combine the reading of filenames with a while loop but it seems not to work. For some reason every video filename gets cropped while read p; do ffmpeg -i "$p" [some options] ; done Any idea why this is happening? filelist.txt looks like this: video1.mp4 video2.mp4 video3.mp4 [...]
15:00
Execute "ffmpeg" command in a loop - Mohammad Torfehnezhad Newest 'ffmpeg' Questions - Stack Overflow

I have three .wav files in my folder and I want to convert them into .mp3 with ffmpeg. I wrote this bash script, but when I execute it, only the first one is converted to mp3. what should I do to make script keep going through my files? This is the script: #!/bin/bash find ./ -name "*.wav" -print | while read f do name=$f:2:$#f-6 cmd='ffmpeg -i "$name.wav" -ab 320k -ac 2 "$name.mp3"' eval (...)
14:01
Error while saving a matplotlib animation, missing 'dpi' argument - aarcas Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to save an animation of matplotlib.animation.AnimationFunc and I get an error saying 'dpi' argument missing. Obviously, I have the dpi set so I don't understand where this error comes from. I'm running python 3.6 and matplotlib 3.0.3, I also just installed ffmpeg from ubuntu official repositories (Ubuntu 18.04). This is the part of my code that should affect that, although I think it should be something of the system: Writer = writers['ffmpeg'] writer = Writer(fps=15, metadata=dict(artist='Me'), (...)
13:54
Simultaneous fragmentation and video encoding FFMPEG - Искандер Newest 'ffmpeg' Questions - Stack Overflow

Good day! I encrypted and fragmented .mp4 video file, but after encryption, I can't decode it back. Could you tell me please what I'm doing wrong? Command, which I use to encrypt: ffmpeg -i C:\\ffmpeg-3.2.2-win64-static\\111.mp4 -vcodec copy -acodec copy -encryption_scheme cenc-aes-ctr -encryption_key 76a6c65c5ea762046bd749a2e632ccbb -encryption_kid a7e61c373e219033c21091fa607bf3b8 -g 52 -f mp4 -movflags frag_keyframe+empty_moov C:\\ffmpeg-3.2.2-win64-static\\result.mp4 Command, which I use to decode: ffmpeg -decryption_key (...) -- Result image
13:36
Unable to overwrite FFMPEG's encoder tag - Tom Newest 'ffmpeg' Questions - Stack Overflow

I'm writing a small script in python that calls ffmpeg, the script works fine but I'm unable to prevent FFMPEG from overwriting the encoder tag with it's own 'Lavf58.29.100' encoder. I tried capturing the input attributes as a varible using FFPROBE and explicitly writing the source encoder to the encoder tag, but it still transcodes with 'Lavf58.29.100' on the output file. import subprocess file = 'File_in.wav' attributes = subprocess.Popen(['ffprobe', file], stdout = subprocess.PIPE, stderr = (...)
13:32
MP4 videos created with AVMutableComposition and AVAssetExportSession work in Quicktime, but appear corrupted in all other video tools - James Porter Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to edit segments of multiple movies together into one clip using Swift, AVFoundation, and AVKit on macOS. The following Swift code is a good example of what I'm trying to do: import AVFoundation import AVKit let source1 = AVAsset(url: URL(string: "https://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4")!) let source2 = AVAsset(url: URL(string: "http://techslides.com/demos/sample-videos/small.mp4")!) let comp = AVMutableComposition() comp.addMutableTrack(withMediaType: .video, preferredTrackID: (...) -- uploaded it to S3 here, you can download here
13:31
Why ffprobe get duration of m4s file audio stream is short than which it actual is? - user12072166 Newest 'ffmpeg' Questions - Stack Overflow

I have a mp4 file which is transcoded to a m4s file. When I checked duration of m4s file using ffprobe, something was wrong. The duraion of m4s audio stream is not correct as mp4, it shorter than mp4. The sum duration of stream is correct. I am confused.
13:15
Vertical video subtitles burn font size - fantom Newest 'ffmpeg' Questions - Stack Overflow

I have two videos, one of them is has display aspect ratio (DAR) 16:9 (horizontal) and another one has 9:16 (vertical). I need to burn in subtitles into them, and for horizontal video I need to set Fontsize=18. But if I try to use the same settings with vertical video, I get very big text size, so I need to set Fontsize=10 to get the same size of letters as in horizontal video. The question is, why I get different displayed font sizes for different DAR and is there any way to have one settings for both (I don't know up front which orientation video will have when burning (...)
12:18
FFMPEG / MJPEG Encoding / How to add DQT table in packet data? - GoodSimon Newest 'ffmpeg' Questions - Stack Overflow

I write my own transcoder in C++ to convert any image to jpeg based on the examples in ffmpeg sources. I use the MJPEG codec to create a jpeg image. By sending AVFrame to the MJPEG encoder I get AVPacket. Then I just take the data from the packet->data structure with the size avpacket->size and save it to a file with the jpg extension. The problem is that the finished JPEG image has only one DQT (Define Quantization Table). As far as I understand, there should be two tables in the file. What do I need to do to have 2 quantization tables in (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

11:01
avfilter/af_aiir: fix phase and group delay calculation - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/af_aiir: fix phase and group delay calculation Properly unwrap phase. [DH] libavfilter/af_aiir.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

11:53
Trim and loop audio to the length of video - Nguyễn Trọng Newest 'ffmpeg' Questions - Stack Overflow

I have a 30 second video and a 120 second audio. I ran the following command to loop audio into the video but it only stopped when the audio length was reached even though I added "-shortest". Help me. (sorry for my bad english) String[] cmd = "-y", "-i", video.mp4, "-i", audio.mp3, "-filter_complex", "[1:a]atrim=0:100,asetpts=PTS-STARTPTS," + "asetrate=44100,aloop=1:size=1*44100," + "aformat=sample_fmts=fltp:sample_rates=44100:channel_layouts=stereo,volume=1.0[bg];" + "[0:v][bg]concat=n=1:v=1:a=1[video]", "-shortest", "-map", (...)
09:48
how to Add mp3 file in to video file using ffmpeg - Rahane Akoliya Newest 'ffmpeg' Questions - Stack Overflow

i want to Add mp3 file in to video file using ffmpeg,i refer many link but not find answer.anyone can help me? final String[] command= ("-i "+ Constant.getTempVideo(VideoEditorActivity.this, false) +" -i " +Constant.Song_Path+ " -c copy -map 0:0 -map 0:1 -map 1:0 -shortest " + videoOutputPath).split(" "); i try this command but give error.
09:04
I am trying to convert mp4 file into text using python but i am getting this error - Lalit Yadav Newest 'ffmpeg' Questions - Stack Overflow

i am doing this in jupyter notebook and the video is placed in the same folder which is mp4 file i want to convert nanavi.mp4 file into text by recognizing what is being said inside the video but i am getting this error enter code here import speech_recognition as sr import os import pyaudio command2mp3 = 'ffmpeg -i nanavi.mp4 nanavi.mp3' command2wav = 'ffmpeg -i nanavi.mp3 nanavi.wav' os.system(command2mp3) os.system(command2wav) r = sr.Recognizer() with (...)
05:25
Why are there multiple .m3u8 requests made by the browser? - 47fa0c Newest 'ffmpeg' Questions - Stack Overflow

I usually download my lectures instead of watching them on the online player provided by my university. I do this by finding requests that include .m3u8 in their url. There always seems to be two of these for each of the videos that I want to download, with one slight difference in the urls but otherwise identical. Why is that the case? My wild guess is that one of them is supposed act as a backup if the other failed to fetch but I am not sure. I can't share the urls as they contain copyrighted material but it looks something (...)
03:55
Implementing a multiple input filter graph with the Libavfilter library in c++ - Bruce Newest 'ffmpeg' Questions - Stack Overflow

I am trying to use the overlay filter with multiple input video sources for the c++ app. I want to overlay various video sources on top of each other. I have looked at the sample that comes with FFmpeg and implemented my code based on that, but things don't seem to be working as expected. In the FFmpeg filtering sample, there seems to be a single video input. I have to handle multiple video inputs, and I am not sure that my solution is the correct one. I have tried to find other examples, but it looks like this is the only one. ffmpeg -i "Left.mov" -i (...)
03:42
ffmpeg: Can't convert file due to missing pixel format info? - user13576035 Newest 'ffmpeg' Questions - Stack Overflow

I'm new to ffmpeg and i've been having problems converting this kux file to mp4. I've converted other kux files in the same way before without issues but it seems that this one isn't working because the pixel format is missing from the metadata? The error message I get is "Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 1920x1080, 2991 kb/s): unspecified pixel format Consider increasing the value for the 'analyzeduration' and 'probesize' options" The pixel format of other files from the (...) -- screen cap
03:30
Tracking granular duration from an ffmpeg stream piped into Nodejs - slifty Newest 'ffmpeg' Questions - Stack Overflow

The Situation I have a video file that I want to process in nodejs, but I want to run it through ffmpeg first in order to normalize the encoding. As I get the data / for a given data event I would like to be able to know how "far" into the video the piped stream has progressed, at as close to frame-level granularity as possible. 0.1 second granularity would be fine. The Code I am using Nodejs to invoke ffmpeg to take the video file path and then output the data to stdout: const ffmpegSettings = [ '-i', (...)
01:41
Server to Browser Audio Streaming - Dan P. Newest 'ffmpeg' Questions - Stack Overflow

My web app processes audio on the server-side with FFMPEG filter commands. Right now, the user uploads a file, then the whole file is processed, and then a .wav file is returned for download. I am looking to improve the app by adding real-time playback, so the user doesn't have to wait for the entire file to be ready to be able to listen to the changes. It would go like this: The user uploads a file The user selects a "start" time of the audio, say 0:00, and clicks play The server would start processing the audio from that time (...)
01:25
create buffer source in ffmpeg - Bruce Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create an AVFilter buffer for video. my source code is AVFilterContext *buffersrc_ctx= nullptr; AVFilterContext *buffersink_ctx = nullptr; const AVFilter *buffersrc = avfilter_get_by_name("buffer"); const AVFilter *buffersink = avfilter_get_by_name("buffersink"); AVFilterInOut *outputs = avfilter_inout_alloc(); AVFilterInOut *inputs = avfilter_inout_alloc(); data->graph = avfilter_graph_alloc(); snprintf(args, sizeof(args), "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d", (...)
00:06
OpenCV VideoWriter Not Writing to Output.avi - R.Zane Newest 'ffmpeg' Questions - Stack Overflow

I'm attempting to write a simple bit of code that takes a video, crops it, and writes to an output file. System Setup: OS: Windows 10 Conda Environment Python Version: 3.7 OpenCV Version: 3.4.2 ffmpeg Version: 2.7.0 File Input Specs: Codec: H264 - MPEG-4 AVC (part 10)(avc1) Type: Video Video resolution: 640x360 Frame rate: 5.056860 Code failing to produce output (it creates the file but doesn't write to it): import numpy as np import cv2 cap = (...) -- this fourcc reference list

19 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

11:27
libavformat/flacdec: Workaround for truncated metadata picture size - Mattias Wadman git.videolan.org Git - ffmpeg.git/rss log

libavformat/flacdec: Workaround for truncated metadata picture size Some flac muxers write truncated metadata picture size if the picture data do not fit in 24 bits. Detect this by truncting the size found inside the picture block and if it matches the block size use it and read rest of picture data. This workaround is only for flac files and not ogg files with flac METADATA_BLOCK_PICTURE comments and it can be disabled with strict level above normal. Currently there is a 500MB limit on truncate size to protect from large memory allocations. The truncation bug in lavf flacenc was fixed in (...)
12:09
avformat/id3v2: Remove unnecessary indirection - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/id3v2: Remove unnecessary indirection ff_id3v2_parse_apic/chapters/priv/priv_dict all had a parameter extra_meta of type ID3v2ExtraMeta ** as if the functions wanted to make *extra_meta point to something else. But they don't, so just use an ID3v2ExtraMeta *. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/aacdec.c [DH] libavformat/aiffdec.c [DH] libavformat/asfdec_f.c [DH] libavformat/asfdec_o.c [DH] libavformat/dsfdec.c [DH] libavformat/hls.c [DH] libavformat/id3v2.c [DH] libavformat/id3v2.h [DH] libavformat/iff.c [DH] (...)
11:43
avformat/id3v2: Avoid allocations for ID3v2ExtraMeta - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/id3v2: Avoid allocations for ID3v2ExtraMeta Up until now, the ID3v2ExtraMeta structure (which is used when parsing ID3v2 tags containing attached pictures, chapters etc.) contained a pointer to separately allocated data that depended on the type of the tag. Yet the difference of the sizes of the largest and the smallest of these structures is fairly small, so that it is better to simply include a union of all the possible types of tag-dependent structures in ID3v2ExtraMeta. This commit implements this. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] (...)
06:10
avformat/aiffenc: Don't forget chapters - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/aiffenc: Don't forget chapters If the write_id3v2 option is set, the aiff muxer would write id3v2 tags if there is global metadata or if there are attached pics to write. Chapters are ignored in this check that precedes writing id3v2 tags. Yet 47ac344970f1d6ef149c4b8a883b68cdb15112c2 added support for writing chapters as id3v2 tags, so one should check for the existence of chapters, too; otherwise the chapters would only be written in case there is global metadata or an attached pic. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] (...)
04:00
avfilter/vf_lut3d: initial float pixel format support - Mark Reid git.videolan.org Git - ffmpeg.git/rss log

avfilter/vf_lut3d: initial float pixel format support Reviewed-by: Paul B Mahol <onemdaⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavfilter/vf_lut3d.c
12:35
avformat/hls: Remove redundant resetting of pointer - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/hls: Remove redundant resetting of pointer ff_id3v2_free_extra_meta() takes a ID3V2ExtraMeta ** so that it can already reset the pointer. Reviewed-by: Jun Zhao <mypopyⓐgmail.com> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/hls.c
08:30
checkasm/sw_scale: Fix stack-buffer-overflow - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

checkasm/sw_scale: Fix stack-buffer-overflow A buffer whose size is not a multiple of four has been initialized using consecutive writes of 32bits. This results in a stack-buffer-overflow reported by ASAN in the checkasm-sw_scale FATE-test. Reviewed-by: Michael Niedermayer <michaelⓐniedermayer.cc> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] tests/checkasm/sw_scale.c
00:35
avformat/mov: Free temp buffer upon negative sample_size error. - Dale Curtis git.videolan.org Git - ffmpeg.git/rss log

avformat/mov: Free temp buffer upon negative sample_size error. 2d8d554f15a7a27cfeca81467cc9341a86f784e2 added a new error condition to mov_read_stsz() but forgot to free a temporary buffer when it occurs. Signed-off-by: Dale Curtis <dalecurtisⓐchromium.org> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/mov.c

Revisions : SPIP http://core.spip.org/projects/spip/activity

17:48
Révision 24579: Divers petites sanitization et une balise manquante #4494 - cedricⓐyterium.com Revisions : SPIP

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

20:55
avcodec/libx265: add support for reordered_opaque - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec/libx265: add support for reordered_opaque Reviewed-by: Derek Buitenhuis <derek.buitenhuisⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libx265.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

23:36
ffmpeg delay in decoding h264 - Mateen Ulhaq Newest 'ffmpeg' Questions - Stack Overflow

NOTE: Still looking for an answer! I am taking raw RGB frames, encoding them to h264, then decoding them back to raw RGB frames. [RGB frame] ------ encoder ------> [h264 stream] ------ decoder ------> [RGB frame] ^ ^ ^ ^ encoder_write encoder_read decoder_write decoder_read I would like to retrieve the decoded frames as soon as possible. However, it seems that there is always a one-frame delay no matter how long one waits.¹ In this example, I feed the encoder a frame every 2 seconds: $ python demo.py 2>/dev/null time=0 frames=1 (...)
22:57
Using ffmpeg to convert an SEC file - anna Newest 'ffmpeg' Questions - Stack Overflow

I need to convert an SEC file into any video format that I can share and/or upload to Youtube. MP4, etc. I'm a complete newbie at all things terminal. I've tried: ffmpeg -i video.sec video.mp4 ffmpeg -i video.sec -bsf:v h264_mp4toannexb -c:v copy video.avi ffmpeg -i video.sec -b 256k -vcodec h264 -acodec aac video.mp4 I don't understand what any of these mean, they're just examples I found online. However, whatever I try returns this error: Invalid data found when processing input Any thoughts? (...)
22:02
Ffmpeg burnt in subtitles out of sync when converting to hls - user1503606 Newest 'ffmpeg' Questions - Stack Overflow

I have a file that has subtitles burn into it and they are perfectly in sync. Here is the file. https://983yqbz442.s3.amazonaws.com/little-mermaid-captions.mp4 I run this command to convert to hls and it creates the .ts files and the .vtt files. ffmpeg -i little-mermaid-captions.mp4 -profile:v baseline -level 3.0 -s 640x360 -start_number 0 -hls_time 10 -hls_list_size 0 -f hls index.m3u8 I also then create a master.m3u8 file in the same folder with the (...) -- https://983yqbz442.s3.amazonaws.com/little-mermaid-captions.mp4, https://983yqbz442.s3.amazonaws.com/hlstests/master.m3u8, https://983yqbz442.s3.amazonaws.com/hlstests/subs-0.vtt
20:31
Create multiple thumbnails from a video - Alexander Vakrilov Newest 'ffmpeg' Questions - Stack Overflow

I need to create multiple thumbnails (ex. 12) from a video at equal times using ffmpeg. So for example if the video is 60 seconds - I need to extract a screenshot every 5 seconds. Im using the following command to get the frame in the 5ths second. ffmpeg -ss 5 -i video.webm -frames:v 1 -s 120x90 thumbnail.jpeg Is there a way to get multiple thumbnails with one command?

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

20:03
avfilter/af_aiir: fix invalid memory access with tf filtering - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/af_aiir: fix invalid memory access with tf filtering [DH] libavfilter/af_aiir.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

18:10
How to install ffmpeg on Google App Engine? - UtkuBulkan Newest 'ffmpeg' Questions - Stack Overflow

I intend to install ffmpeg and ffprobe to my Google App Engine flex environment, how can I do this with requirements.txt as a package ? I am currently using ffmpeg-python yet, this is only a wrapper. ffmpeg-python==0.2.0 ffprobe-python==1.0.3 Below is the error when I try to use ffmpeg-python wrapper, which is expected as there is no ffmpeg and ffprobe available : 2020-05-03 11:42:36 default[20200503t112932] [03/May/2020 11:42:36] ERROR [log.py:228] Internal Server Error: /capture_thumbnail/ 2020-05-03 11:42:36 default[20200503t112932] (...)
18:08
How do I implement the ffmpeg library into a WPF app? - symonxd Newest 'ffmpeg' Questions - Stack Overflow

I want to make a simple GUI that implements the ffmpeg library in WPF. How do I do this? Let's say I have the ffmpeg.exe on my PC, how do I use it in my WPF the most optimal way? Think of Avidemux but much simpler and with custom features. -- ffmpeg, WPF, Avidemux
19:39
How do I change audio language using ffmpeg in video files contaning two or more audio tracks - warezsoftwarez Newest 'ffmpeg' Questions - Stack Overflow

I am transcoding video files, that contain 2 audio tracks - Polish and English. Unfortunately my transcoder messes somehow with metadata, and at the output, when I'm checking video file using MediaInfo, i see that both audio tracks are described as English. I'd like to change description of 1st audio track to Polish, so accordingly to ffmpeg documentation: To set the language of the first audio stream: ffmpeg -i INPUT -metadata:s:a:0 language=eng OUTPUT Unfortunately, running command: ffmpeg -i INPUTPATH -metadata:s:a:0 language=pol (...)
19:31
FFmpeg remove subtitles from file "if exists" - Mwthreex Newest 'ffmpeg' Questions - Stack Overflow

I have bunch of mp4 files in a folder, Some of them have embedded subtitles and i want to remove them (remove subtitle from file), But the problem is some of files doesn't have subtitle so I'm looking for some if statement in a for loop: for n in *.mp4; do ffmpeg -i n -map 0 -map -0:s -c copy n; done This command apply on all files but i only need to excute it for files that have subtitles.
19:30
FFmpeg raw h.264 set pts value - thecaptain0220 Newest 'ffmpeg' Questions - Stack Overflow

I am currently using ffmpeg to convert a custom container media format to mp4. It is straightforward to dump all the h.264 frames to one file and the aac audio to another. Then I can combine the two and create an mp4 file with ffmpeg. The problem is that the video source isn't always perfect. From time to time frames are dropped or late etc. This causes an A/V sync issue since the pts is generated using a constant rate by ffmpeg. The source format I am using has the PTS value but I cant figure out a way to pass it to ffmpeg with the raw h.264 frames. I suppose (...)
19:28
How to convert .m2ts .vob Video to mkv without losing quality in COLAB FFMPEG - Adnan Katper Newest 'ffmpeg' Questions - Stack Overflow

I want to convert .m2ts and vob videos to .mkv in same resolution and quality, so how to do it in COLAB? I used a script All in One 1.9.1 it converts successfully but output file is verly low quality and its avc codec is version 3 while i want it to be version HighⓐL4.1. I have mounted my gdrive and will use it as source of videos. All in one 1.9.1 https://colab.research.google.com/github/pcodejs/Codemaster/blob/master/All_in_One_1_9_1.ipynb -- https://colab.research.google.com/github/pcodejs/Codemaster/blob/master/All_in_One_1_9_1.ipynb
19:19
How to find best FFmpeg libx265 encoding settings for a specific (set of) file(s) - Boba0514 Newest 'ffmpeg' Questions - Stack Overflow

I have only recently discovered FFmpeg and tried using the x265 video codec to reduce the video stream size for some videos, and realized that I can achieve tremendous space savings, especially for video recorded via smarthphones. As I'm new to this, I tried doing some research and found that mostly it's about choosing the correct CRF and preset, so I am thinking it would be sufficient to write a script which iterates through these, creating samples which I could look at and decide what's the best option for a given (set of) video(s). Is this enough, or should I (...)
19:14
Loop input on a http url with ffmpeg? - halo test Newest 'ffmpeg' Questions - Stack Overflow

How can I loop input on a http url with ffmpeg? The http url jpg is dynamically changing so every time I call the http url its a new image. I have already tried these commands below. ffmpeg -stream_loop -1 -i http://127.0.0.1/api/gfx/frame.jpg -codec mpeg4 -f rtsp rtsp://localhost:8554/stream ffmpeg -r 1 -filter_complex loop=loop=-1:size=100:start=0 -i http://127.0.0.1/api/gfx/frame.jpg -f rtsp rtsp://localhost:8554/stream This comment makes it seems like there is no support or work around. loop_input is deprecated in favor of -loop, (...)
18:58
Can I use ffmpeg to encode a procedurally generated video for livestream? - Mei Zhang Newest 'ffmpeg' Questions - Stack Overflow

I have a python script that continuously generates images (frames of a video). I would normally save these images to files and then convert them to a video with ffmpeg using the command line. What additional steps are required to adapt this workflow for livestreaming? Instead of saving the frames to files I would like to stream them to, say, YouTube, and my script could potentially run indefinitely generating frames of the video. I'm looking for general guidelines so I can Google more details myself. I assume video platforms like YouTube have some API (...)
16:57
Concatenating audio and video files without encoding using ffmpeg - amplifier Newest 'ffmpeg' Questions - Stack Overflow

I have 2 files: video.webm - contains ONLY video audio.webm - contains ONLY audio I try to merge them into one without encoding with python-ffmpeg video = ffmpeg.input('video.webm').video audio = ffmpeg.input('audio.webm').audio concatenated = ffmpeg.concat(video, audio, v=0, a=1) concatenated.output('output.webm', vcodec='copy", acodec='copy').run() but on output call I get Stream specifier ':v' in filtergraph description [0:v][1:a]concat=a=1:n=2:v=0[s0] matches no (...)
16:05
Can ffprobe consume piped ffmpeg output? - slifty Newest 'ffmpeg' Questions - Stack Overflow

The Situation I'm writing a NodeJS script that takes a video stream (or file), pipes it to ffmpeg to standardize the format, and then sends it to various ETL processes to extract data from the video. I want my node-level data stream to have awareness of how far into the video it is, and it seems the best (only?) way to do this is to use ffprobe to extract times from the stream packets. The Problem Before I actually start spawning ffmpeg commands, I'm trying to test at the CLI level. When I pipe ffmpeg's output directly to ffprobe, I (...)
15:43
Fragmented mp4 file is not played by MSE - Daniel Newest 'ffmpeg' Questions - Stack Overflow

I created a fragmented mp4 file with ffmpeg (from h264), and removed the first 6 moof and mdat pairs. So now it still has the correct order of boxes: ftyp, moov, moof, mdat, moof, mdat, ..., but the first moof packet has the sequenceNumber of 7. VLC can play it fine, 'Movies & TV' can also play, but the first some seconds are black. If I drag the file into the browser, it can also play it fine. It is however not being displayed at all in the browser (Chrome) if I feed it via MSE. No error messages are printed, and in the (...) -- video file
15:43
How to implement filter_complex on the PHP-FFMpeg - Sergey Kozlov Newest 'ffmpeg' Questions - Stack Overflow

How to using filter_complex on the PHP-FFMpeg? I need to implement the following FFMpeg command: ffmpeg -i test.mp4 -filter_complex \\ "[0:v]trim=start=10:end=11,setpts=PTS-STARTPTS[a]; \\ [0:v]trim=start=20:end=21,setpts=PTS-STARTPTS[b]; \\ [a][b]concat[c]; \\ [0:v]trim=start=30:end=31,setpts=PTS-STARTPTS[d]; \\ [0:v]trim=start=40:end=41,setpts=PTS-STARTPTS[f]; \\ [d][f]concat[g]; \\ [c][g]concat[out1]" -map [out1] (...)
12:13
I need to convert audio files using ffmpeg but i got error - tohid noori Newest 'ffmpeg' Questions - Stack Overflow

I wanna convert a mp3 file to wav file but i can't . I try converting mp3 file to other formats too but I always get error . Maybe my implementation of ffmpeg has problem if you how to import ffmpeg library tell me in comment too. I search a lot but i cant find solution maybe my ffmpeg command code has problem. if you know how to deal whit it please help me . this is my code . String s = " -i " + musicDbs.get(0).musicPath +" -vn -ar 44100 -b:a 192k "+ dir.getPath(); // s = -i /storage/emulated/0/Doto30/FX/Pishro_Ft_Hichkas_Divoone.mp3 -vn (...)
11:31
Nodejs: I want to use url as source of ffmpeg - user10204688 Newest 'ffmpeg' Questions - Stack Overflow

I want to use url as source of ffmpeg. url is like https://192.168.1.103:6666/stream.mjpg. I checked ffmpeg working on MacOS shell ffmpeg -f mjpeg -y -use_wallclock_as_timestamps 1 -i 'http://192.168.1.103:6535/stream.mjpg' -r 5 -reconnect 1 -loglevel 16 -c:v copy -an -qscale 10 '2.mp4' But I want it to use in nodejs. So make it automatic. However it doesn't work when I put url in ffmpeg object as init. var ffmpeg = new ffmpeg(url) So this is my code const imagePath = (...) -- https://192.168.1.103:6666/stream.mjpg
07:57
ffmpeg Unsupported codec adpcm_ima_wav when i want sending in RTP - mohammad noroz Newest 'ffmpeg' Questions - Stack Overflow

when i want encode a wav file and send it with rtp in ffmpeg i receive an error that say "Unsupported codec adpcm_ima_wav" but i can encode this file with adpcm_ima_wav and save this file but i can not send with rtp in ffmpeg. ffmpeg -hide_banner -y -re -thread_queue_size 4 -i audio -acodec adpcm_ima_wav -sdp_file test.sdp -f rtp "rtp://127.0.0.1:2222" below show this error: Input #0, wav, from 'audio': Metadata: encoded_by : Pro Tools originator_reference: !jtMVHCThOfaaaGk date : 2010-09-14 creation_time : 08:04:58 (...)
01:47
How do I half the frame-rate of a DNxHR mxf file with FFMpeg losslessly? - in03 Newest 'ffmpeg' Questions - Stack Overflow

I have limited experience with FFMpeg, so there's a chance I'm missing something simple here. Imagine the following scenario: I have a DNxHR HQ UHD 50P .mxf file, 10 seconds/500 frames long. I want to remove every second frame from this file with FFMpeg so that I end up with a DNxHR HQ UHD 25P .mxf file, 10 seconds/250 frames long. I do not want the file to be re-encoded in any way and any audio streams should remain untouched. I imagine this is possible since DNxHR is an intra-frame codec. If this isn't possible with FFMpeg, I'm happy to hear (...)
00:05
Using ffmpeg in C# WPF app to edit m4b metadata - master_ruko Newest 'ffmpeg' Questions - Stack Overflow

I am trying to add functionality to a WPF app to edit the chapter metadata of an m4b file. I was planning of using FFmpeg. I can do it in the command line if I have an existing FFmpeg metadata file with something like ffmpeg -i original.mov -f ffmetadata -i metadata.txt compressed.mp4 But I don't know how do do this with a WPF app. Part of the reason that I don't want to just use the command line is that I don't have a metadata file, so I have to parse a cue file and make one on the fly. Also, working on my c# skills. I found some stuff on (...)

18 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

04:43
avformat/webmdashenc: Don't segfault on invalid arguments - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/webmdashenc: Don't segfault on invalid arguments The current parsing process for adaptation_sets does not guarantee every adaptation set to contain at least one stream, because the loop exits immediately as soon as the end of the string has been reached, without checking whether the currently active adaptation set group is lacking a stream. This would lead to segfaults lateron as the rest of the code presumed that every adaptation set contains a stream. This commit fixes this by erroring out when the last adaptation set group is incomplete. Signed-off-by: Andreas Rheinhardt (...)
04:19
avformat/webmdashenc: Remove possibility of infinite loop - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/webmdashenc: Remove possibility of infinite loop The WebM DASH manifest muxer uses a loop to parse the adaptation_sets string (which is given by the user and governs which AVStreams are mapped to what adaptation set) and the very beginning of this loop is "if (*p == ' ') continue;". This of course leads to an infinite loop if the condition is true. It is true if e.g. the string begins with ' ' or if there are more than one ' ' between different adaptation set groups. To fix this, the parsing process has been modified to consume the space if it is (...)
03:17
avformat/webmdashenc: Be more strict when parsing stream indices - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/webmdashenc: Be more strict when parsing stream indices The syntax of the adaptation_sets string by which the user determines the mapping of AVStreams to adaptation sets is "id=x,streams=a,b,c id=y,streams=d,e" (means: the streams with the indices a, b and c belong to the adaptation set with id x). Yet there was no check for whether these indices were actual numbers and if there is a number whether it really extends to the next ',', ' ' or to the end of the string or not. This commit adds a check for this. Signed-off-by: Andreas Rheinhardt (...)
02:48
avformat/webmdashenc: Avoid allocation for parsing a number - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/webmdashenc: Avoid allocation for parsing a number In order to parse a number from a string, the WebM DASH manifest muxer would duplicate (via heap-allocation) the part of the string that contains the number, then read the number via atoi() and then free the duplicate again. This has been replaced by simply using strtoll() (which in contrast to atoi() has defined behaviour when the number is not representable). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] (...)
05:11
avformat/webmdashenc: Simplify parsing strings - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/webmdashenc: Simplify parsing strings Don't use the functions for searching substrings when all one is looking for is a char anyway. Given that there is already a standard library function for "find last occurence of a char in a string" also allows one to remove a custom loop. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/webmdashenc.c
00:25
avformat/matroskadec: Use proper context for logging - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/matroskadec: Use proper context for logging Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/matroskadec.c
17:55
fftools/cmdutils: remove lossless and intra only capability entries from print_codec() - James Almer git.videolan.org Git - ffmpeg.git/rss log

fftools/cmdutils: remove lossless and intra only capability entries from print_codec() They are codec properties, not encoder capabilities. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] fftools/cmdutils.c
17:38
fftools/ffmpeg_filter: check the codec's descriptor to see if it's lossless - James Almer git.videolan.org Git - ffmpeg.git/rss log

fftools/ffmpeg_filter: check the codec's descriptor to see if it's lossless Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] fftools/ffmpeg_filter.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

23:27
RuntimeError: No ffmpeg exe could be found - FFMpeg error in Windows 10 - Soumya Boral Newest 'ffmpeg' Questions - Stack Overflow

I am trying to run from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip However I am continuously getting the followng error : RuntimeError: No ffmpeg exe could be found. Install ffmpeg on your system, or set the IMAGEIO_FFMPEG_EXE environment variable. I have installed ffmpeg in my system and have added it in path. Also in cmd, ffmpeg gives proper output. So anything I am doing wrong here (...)
22:38
is there any solution of the below problem - Sonu Newest 'ffmpeg' Questions - Stack Overflow

This is code and I'm getting the following issue filename is "ply_audio.py" from pydub import AudioSegment ># read/write data > data = AudioSegment.from_file(file="one.wav",format="wav") >data.export("new_test.wav") > python ply_audio.py C:\\Users\\raj\\AppData\\Local\\Programs\\Python\\Python38\\lib\\site-packages\\pydub\\utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", (...)
21:20
ffmpeg add video thumbnail only [duplicate] - james-norman Newest 'ffmpeg' Questions - Stack Overflow

this code below am happy with it and now i wish to add a thumbnail to it using the 55.png without compromising the current code ffmpeg -y -i 55.mp4 -loop 1 -framerate 30000/1001 -t 5 -i 55.png -t 0.5 -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -filter_complex "[0:a]atempo=1.0,pan=stereo|c0
21:13
ffmpeg reducing the qualitu of photos - Suhaanaa Shah Newest 'ffmpeg' Questions - Stack Overflow

I am using ffmpeg to convert photos to video and i am pretty successfull so far. However I am facing quality issue. $command1="ffmpeg -r 1/1 -pattern_type glob -i 'pics/*.jpg' -vf \\"pad=ceil(iw/2)*2:ceil(ih/2)*2\\" finalPics/video.mp4"; exec($command1); What is wrong with the command as video quality is really reducing the quality of images
20:05
FFMPEG: Can i set an audio to be played at night only? - F O X Newest 'ffmpeg' Questions - Stack Overflow

This is my working command: ffmpeg -rtsp_transport tcp -i rtsp://stream1video -i rtsp://stream2audio -re -stream_loop -1 -i 1.aac -re -stream_loop -1 -i 2.aac -filter_complex "[1:a][2:a][3:a]amix=inputs=3[a]" -map 0:v -map "[a]" -c:a aac -f flv rtmp://a.rtmp.youtube.com/ Now, can i somehow set playing the audio streams only at the night? e.g. between 22:00-06:00 each day? And the rest of the day would be just the silence :) edit: i'm using (...)
19:36
Trying to convert an mp3 file to a Numpy Array, and ffmpeg just hangs - Rich Newest 'ffmpeg' Questions - Stack Overflow

I'm working on a music classification methodology with Scikit-learn, and the first step in that process is converting a music file to a numpy array. After unsuccessfully trying to call ffmpeg from a python script, I decided to simply pipe the file in directly: FFMPEG_BIN = "ffmpeg" cwd = (os.getcwd()) dcwd = (cwd + "/temp") if not os.path.exists(dcwd): os.makedirs(dcwd) folder_path = sys.argv[1] f = open("test.txt","a") for f in glob.glob(os.path.join(folder_path, "*.mp3")): ff = f.replace("./", "/") print("Name: " (...)
19:26
FFMPEG Add thumbnail to video [duplicate] - james-norman Newest 'ffmpeg' Questions - Stack Overflow

add a thumbnail to my video file. I have the code that I have compiled with the help of other people from StackOverflow and I have one bit left to finish it off and that is to add a line of code to add video thumbnail. you will see some weird text in command like targggget these are words that get replaced by the software so ignore it. app.path\\ffmpeg gets replaced with file-path/ffmpeg targgggett\\targ3et.mp4 file-path/xx.mp4 targgggett\\targetimgee - output is example C:\\Users\\username\\Desktop\\vidz\\New folder\\images\\demo.png "app.path\\ffmpeg" -y -i (...)
18:58
ffmpeg strftime no effect on windows - Ben Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to auto mark the output file with timestamps with ffmpeg. Here's my test cmd: .\\ffmpeg.exe -y -loglevel 99 -i test.mp3 -strftime 1 %Y.ogg I expected a file named 2020.ogg, however only got %Y.ogg. In another word, output filename is not processed by strftime(). I'm using powershell so there should be no relation with cmd's %% escaping. Here's the output: https://pastebin.com/LUVh2kFA I'm using static builds from https://ffmpeg.zeranoe.com (Thanks Zeranoe!) I confirmed that the problem exists in v4.2.2 and (...) -- https://pastebin.com/LUVh2kFA, https://ffmpeg.zeranoe.com

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

15:50
avcodec/frame_thread_encoder: check for frame threading codec cap instead of intra... - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec/frame_thread_encoder: check for frame threading codec cap instead of intra only It's the correct dedicated capability reported by supported encoders. Otherwise, the frame thread path will be used for unsupported encoders like r210 for no gain. Reviewed-by: Anton Khirnov <antonⓐkhirnov.net> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/frame_thread_encoder.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

17:20
FFMPEG C++ Volume Filter - Hrethric Newest 'ffmpeg' Questions - Stack Overflow

I seem to be having a bit of trouble using FFMPEG audio filters in C++ code. If I only have "abuffer" and "abuffersink" filters, and grab the audio frame from the filtergraph, it sounds perfect. Once I add another filter into the graph (in this case, it's a "volume" filter), there is a lot of noise introduced. I can't figure out what would be causing this. This isn't the case for all filters - "aecho" works just fine, for example. Any thoughts? Here's the relevant code: Filter Creation char args[512]; int ret = (...)
17:09
How to convert ffmpeg complex_filter to ffmpeg-python - v78 Newest 'ffmpeg' Questions - Stack Overflow

I am trying to learn to convert ffmpeg command line background blur filter to ffmpeg-python format. '-lavfi' and [0:v]scale=ih*16/9:-1,boxblur=luma_radius=min(h\\,w)/20:luma_power=1:chroma_radius=min(cw\\,ch)/20:chroma_power=1[bg];[bg][0:v]overlay=(W-w)/2:(H-h)/2,crop=h=iw*9/16 Basic examples from https://github.com/kkroening/ffmpeg-python are good to learn simple tricks, but How to learn to the full transformation syntax? -- https://github.com/kkroening/ffmpeg-python

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

17:28
avcodec/libdav1d: export frame sample aspect ratio - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec/libdav1d: export frame sample aspect ratio Reviewed-by: Anton Khirnov <antonⓐkhirnov.net> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libdav1d.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

14:33
FFmpeg gives warning when Video and Audio Filters are used together - Matt McManis Newest 'ffmpeg' Questions - Stack Overflow

Here's an example command I'm using. ffmpeg -y -i input.mpg -c:v libvpx -b:v 1300K -crf 20 -vf "deband, dejudder" -c:a libvorbis -q:a 2 -af "lowpass" output.webm It uses Video Filters -vf deband and dejudder and Audio Filter -af lowpass. Warning It gives the warning in red: Only '-vf deband, dejudder' read, ignoring remaining -vf options: Use ',' to separate filters Only '-af lowpass' read, ignoring remaining -af options: Use ',' to separate filters (...) -- red
13:01
Scale and forward RTP stream ffmpeg - Pittie Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to scale a video from an RTP stream and then forward the output to another RTP stream. here are my commands: // 1. create rtp stream from mp4 ffmpeg -re -i 'input.mp4' -vcodec copy -an -f rtp 'rtp://localhost:1235' // 2. receive the stream and scale and create another rtp stream afterward ffmpeg -i source.sdp -s 360:240 -f rtp 'rtp://localhost:1237' // 3. play the scaled video from the second stream ffplay -i scaled.sdp and the sdp files: // source.sdp v=0 o=- 0 0 IN IP4 (...)
12:58
The SSIM values calculated using FFMPEG are not what I expected - fd-alexer Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to encode an m2ts (MPEG-2 Transport Stream) file to mp4 (H.264) and get the ssim value. I did get some SSIM values, but the results were contrary to my expectations. Are there wrong command options for ffmpeg? Encoding and SSIM calculation commands # encode $ ffmpeg -hide_banner -fflags +discardcorrupt -i input.m2ts \\ -c:v libx264 -crf -preset:v medium \\ -c:a copy -bsf:a aac_adtstoasc \\ output_ff_crf-.mp4 # calculate ssim $ ffmpeg -hide_banner -i -i \\ -lavfi (...)
10:36
FFmpeg Opus choppy sound UPDATED DESCRIPTION - easy_breezy Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFmpeg and try to encode and decode a raw PCM sound to Opus using a built-in FFmpeg "opus" codec. My input samples are raw PCM 8000 Hz 16 bit mono, in AV_SAMPLE_FMT_S16 format. Since Opus requires sample format AV_SAMPLE_FMT_FLTP and sample rate 48000 Hz only, so I resample my samples before encode them. I have two instances of ResamplerAudio class that does the work of resampling audio samples and has a member of SwrContext, I use the first instance of ResamplerAudio for resampling a raw PCM input audio before encoding and the second for resampling decoded audio (...)
10:29
php video upload and ffmpeg won't create a thumbnail - Azzo Newest 'ffmpeg' Questions - Stack Overflow

I am trying to make a video upload feature for my project. But I have a problem with ffmpeg section. ffmpeg is already installed on my server. But i can not get any thumbnail. I have try to create thumbnail using the following code: $videoa = exec("/usr/bin/ffmpeg -i $videoUrlp.flv -f flv -s 650x390 $videoUrlp.mp4 2>&1"); $videob = exec("/usr/bin/ffmpeg -i $videoUrlp.mp4 -vcodec png -ss 00:00:5 -s 650x390 -vframes 1 -an -f rawvideo $videoUrlp.png"); But i ge this when use var_dump(); for var_dump($videoa); and var_dump($videob); string(74) (...) -- https://mywebsite.com/uploads/video/ey1kXNew_video.flv, https://mywebsite.com/uploads/video/1547892356_video.flv, https://website.com/uploads/video/e0J6HwtK_video.mp4, https://website.com/uploads/video/e0J6HwtK_video.png
08:27
Use ffmpeg to resize image - Andrew Simpson Newest 'ffmpeg' Questions - Stack Overflow

Is it possible to resize an image using FFMPEG? I have this so far: ffmpeg. -i 1.jpg -vf scale=360:240 > 2.jpg I get the error message that 'At least one output file must be specified' Is it possible?
06:20
ffmpeg record Xvfb and pulseaudio got sync problem - boygiandi Newest 'ffmpeg' Questions - Stack Overflow

I using ffmpeg to record Xvfb and audio from pulseaudio. Sometime the video output has the audio ahead of video ( sometime normal - it happen randomly ). The flow like this ffmpeg |-> video : Xvfb -> Firefox |-> audio : pulsesaudio So I don't know where this issue come from : ffmpeg or Xvfb or Firefox or pulseaudio I already updated ffmpeg to latest version. Tried to config pulsesaudio load-module module-udev-detect tsched=0. Nothing (...)
07:39
ffmpeg single quote in drawtext - dotsam Newest 'ffmpeg' Questions - Stack Overflow

I haven't been able to get ffmpeg's drawtext video filter to draw apostrophes/single quotes when they are in drawtext's "text=" parameter, even when I escape them. Double quotes work fine, and apostrophes in text loaded from a file (e.g. textfile="example.txt") work fine. Is this a bug? e.g. ffmpeg -i test.mpg -vf drawtext="apostrophes don't print" ... ffmpeg -i test.mpg -vf drawtext="even when they\\'re escaped" (...)
04:51
MobileFFmpeg - get progress of concatenation of a video - STerrier Newest 'ffmpeg' Questions - Stack Overflow

Is there a way to grab the progress of the concatenation using Mobile FFmpeg? Mobile FFmpeg displays stats by default in the console and I can see the time length of the video which I want but I can't find a way to grab it so I can create a progress bar. Data displayed in the console 2658560kB time=01:30:40.00 bitrate=4003.5kbits/s speed=60.9x \\rframe=137002 fps=1524 q=-1.0 2678272kB time=01:31:20.00 bitrate=4003.7kbits/s speed=61x \\rframe=138252 fps=1528 q=-1.0 func encodeWebp(m3u8: String, completed: () -> Void) guard let sessionid = sessionID else (...) -- https://github.com/tanersener/mobile-ffmpeg

17 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

00:17
avcodec: move avcodec_flush_buffers from decode.c to utils.c - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec: move avcodec_flush_buffers from decode.c to utils.c It's not a decoding exclusive function anymore. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/decode.c [DH] libavcodec/utils.c
21:37
avformat/webm_chunk: Open AVIOContext before initializing sub-muxer - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/webm_chunk: Open AVIOContext before initializing sub-muxer The description of AVOutputFormat.init contains the statement that "this method must not write output". Due to this, the webm_chunk muxer defers opening the AVIOContext for the child muxer until avformat_write_header(), i.e. there is no AVIOContext when the sub-muxer's avformat_init_output() is called. But this violates the documentation of said function which requires the AVFormatContext to have an already opened AVIOContext. This commit fixes this. Signed-off-by: Andreas Rheinhardt (...)
18:04
avcodec/xiph: Return better error codes - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avcodec/xiph: Return better error codes Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavcodec/xiph.c
17:30
avformat/matroskaenc: Forward errors from avpriv_split_xiph_headers() - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/matroskaenc: Forward errors from avpriv_split_xiph_headers() Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/matroskaenc.c
02:36
avformat/segment: Access AVStream more directly - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/segment: Access AVStream more directly by storing s->streams[i] in a pointer instead of constantly using s->streams[i]->... Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/segment.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

22:52
Error initializing ffmpeg complex filters. Invalid argument - Hardik Gupta Newest 'ffmpeg' Questions - Stack Overflow

[AVFilterGraph ⓐ 00000154daaed200] No such filter: '[0:v]pad=iw*2:ih[int];[int][1:v]overlay=W/2:0[vid]' Error initializing complex filters. Invalid argument Is the error while running the following lines: def run_left_right(lr_vid, hr_vid, output_vid): command = "ffmpeg -y -i 0 -vf scale=480:852 output.mp4".format(lr_vid) subprocess.run(command, shell=True) command = "ffmpeg -y -i output.mp4 -i 1 -filter_complex '[0:v]pad=iw*2:ih[int];[int][1:v]overlay=W/2:0[vid]' \\ -map [vid] -c:v libx264 -crf 23 -preset (...)
22:34
FFmpeg transcoding on Lambda results in unusable (static) audio - jmkmay Newest 'ffmpeg' Questions - Stack Overflow

I'd like to move towards serverless for audio transcoding routines in AWS. I've been trying to setup a Lambda function to do just that; execute a static FFmpeg binary and re-upload the resulting audio file. The static binary I'm using is here. The Lambda function I'm using in Python looks like this: import boto3 s3client = boto3.client('s3') s3resource = boto3.client('s3') import json import subprocess from io import BytesIO import os os.system("cp -ra ./bin/ffmpeg (...) -- here, here, here
21:20
Convert audo from 2.0 to 5.1 for TVHeadend IPTV from m3ub stream using ffmpeg pipe - Brad T Newest 'ffmpeg' Questions - Stack Overflow

Right now, I have TVHeadend successfully setup to stream an m3ub as an IPTV channel with: pipe:///usr/bin/ffmpeg -i https://STREAM.m3u8 -c copy -f mpegts pipe:1 but I want to convert the audio from 2.0 to 5.1 where the left and right audio is just copied to all the 5.1 channels. For example, instead of only hearing voice dialog on the center channel I want to hear it on all channels. If you're wondering why, this 5.1 system isn't really for making a surround sound experience so much as it is to bring the voice "closer" to the person. I'm using (...)
21:05
FFmpeg - Audio encoding produces extra noise over audio - user3208915 Newest 'ffmpeg' Questions - Stack Overflow

I am trying to use FFmpeg to take a video (MP4 in this case) and copy it as another MP4. This is so that I can get the hang of decoding/encoding a video and go on to doing other things in that process. My code basically takes a video file, decodes the video and audio streams, and encodes the video and audio streams to an output video file. As of now, my code only works for the video stream of the input file. The video part of the output file is exactly the same as the video part of the input file. However, the audio part is not. The audio part of the output contains the original (...)
20:37
How to specify a output folder for ffmpeg - radioactive Newest 'ffmpeg' Questions - Stack Overflow

I am using ffmpeg to convert an audio file to .wav format (Rate -16K, 16 bit, Mono). I want to save the converted audio in a folder but I keep getting this error - Unable to find a suitable output format for '/var/www/html/myproject/public/audio' /var/www/html/myproject/public/audio: Invalid argument Here is my code: try $audio = "....audio.ogg" $output = public_path().'/audio'; //output folder exec("ffmpeg -i $audio -ab 16 -ar 16000 -ac 1 $output"); catch(Exception $ex) Please what am I (...)
20:31
ffmpeg - avoid duration approximation of generated files - Francesco Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to generate videos with high precision durations, but all of the results always end up with their duration approximated leaving out milliseconds. E.g. ffmpeg -y -loop 1 -i "blank.png" -tune stillimage -t 9.983002003392 test.mkv This example is supposed to give the file a duration of 9 seconds and 983002003392 milliseconds, though those milliseconds get lost when I check the duration using ffbrobe ffprobe test.mkv -show_entries format=duration -v quiet -of csv="p=0", it shows 10.000000 instead. This doesn't happen when generating audio (...)
20:20
Use FFMPEG to combine different MP4s with srt into one file - anonymous1a Newest 'ffmpeg' Questions - Stack Overflow

So...probably a very basic question for those of you familiar with FFMPEG (I'm really not). I know that you can combine multiple videos into one using FFMPEG, but what about if each video has its own srt file, saved separately in a 'subs' folder and NOT included in the video itself? Is it possible for FFMPEG to also combine the srt files into a single one (and recalculate the timestamps), and then merge this into the final, combined video? If so, what would the command be? For example, I have video1.mp4 and video2.mp4. They have corresponding sub1.srt (...)
20:18
Flutter ffmpeg working with video files instead of paths - lulliezy Newest 'ffmpeg' Questions - Stack Overflow

Is there a way for ffmpeg in flutter to work with files from dart:io package instead of paths, e.g. call a function passing the video file and getting a video file as output of the function?? Also what are the benefits and/or downsides to just working with paths rather than actual files? Thanks in advance. Platform: Mobile
19:41
Why won't fluent-ffmpeg respect the audioBitrate? - Shamoon Newest 'ffmpeg' Questions - Stack Overflow

I have: ffmpeg(stream) .audioBitrate(8) .save(outputFilename) .on('progress', p => console.log(`$p.targetSizekb downloaded`); ) .on('end', resolve) .on('error', reject) And it saves the file, but it still has a 48KHz sample rate. What am I doing wrong?

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

21:04
avutil: bump version after addition of av_sat_add64 and av_sat_sub64 - James Almer git.videolan.org Git - ffmpeg.git/rss log

avutil: bump version after addition of av_sat_add64 and av_sat_sub64 Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] doc/APIchanges [DH] libavutil/version.h

Revisions : SPIP http://core.spip.org/projects/spip/activity

19:58
Evolution #4493: Ajouter des robots à l'écran de sécurité - RastaPopoulos ♥ Revisions : SPIP

Super merci :)
19:57
Evolution #4493: Ajouter des robots à l'écran de sécurité Revisions : SPIP

PR fait : https://git.spip.net/spip/spip/pulls/38
18:16
Evolution #4493: Ajouter des robots à l'écran de sécurité - RastaPopoulos ♥ Revisions : SPIP

Si t'as un fork sur la même forge, normalement tu as un bouton pour transformer n'importe quelle branche en PR
13:08
Evolution #4493 (Nouveau): Ajouter des robots à l'écran de sécurité Revisions : SPIP

Bonjour, J'ai quelques sites qui ont des nombres de visites bizarres (trop grand, d'un facteur 10 à 30 certains jours). J'ai fait un patch : https://git.spip.net/RealET/spip/commit/ce2ce832b697ab0754a78e0fc8b298ae1e9c992b Mais je ne sais pas comment en faire un PR. Pour info, voici un extrait d'awstats pour le serveur concerné : Pour info : MJ12bot 2 241 164+29470 32.60 Go 17 Mai 2020 - 11:50 AhrefsBot 1 388 315+9242 28.07 Go 17 Mai 2020 - 11:50 SemrushBot 1 251 075+74309 23.91 Go 17 Mai 2020 - 11:50 bingbot 619 488+28872 22.38 Go 17 Mai 2020 - 11:50 DotBot 394 445+7038 22.52 Go 17 Mai (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

18:03
How to overlay 2 mp4 files with FFmpeg managing opacity - fabeinlibre Newest 'ffmpeg' Questions - Stack Overflow

I want to overlay 2 mp4 files of same size and duration into one file, managing opacity: 60% for file 1, 40% for file 2. I read that it can't be done directly with mp4 file so i covert them to .ts with ffmpeg -i file1.mp4 -c copy -bsf:v h264_mp4toannexb -f mpegts file1.ts Then i try ffmpeg -i file1.ts -i file2.ts -filter_complex "[1]format=yuva444p,colorchannelmixer=aa=0.5[file2.ts];[0][file2.ts]overlay" out.ts It works but the result is ugly. And i don't really understand what it does. How to manage opacity of each file (...)
17:36
How do I combine mkv and mka file using fluent-ffmpeg? - YaSh Chaudhary Newest 'ffmpeg' Questions - Stack Overflow

I have two Amazon S3 bucket file urls , one is for mkv file(video) and other one for mka(audio). I am trying to merge audio and video in one file and upload it to S3 but following function doesn't seems to get working. Not getting error also. client.request( method: 'GET', uri: uri ).then((response) => const mediaLocation = response.body.redirect_to media.push(mediaLocation) if(media.length > 1) ffmpeg(media[0]) .addInput(media[1]) .output(`$recordingSid.mkv`) .on('error', function (err) (...)
17:23
ffmpeg youtube live stream vb.net - Sharath Nandakumar Newest 'ffmpeg' Questions - Stack Overflow

i want to stream desktop to youtube live using ffmpeg. I am programming in visual basic 2019. i have downloaded copied ffmpeg to C folder from ffmpeg.org. the code i used was Public Class Form1 Private Sub Form1_Load(sender As Object, e As EventArgs) Handles Me.Load Dim psi As ProcessStartInfo = New ProcessStartInfo("C:/ffmpeg.exe") Dim proc As Process = Process.Start(psi) psi.UseShellExecute = False psi.CreateNoWindow = True psi.Arguments = "ffmpeg -loglevel debug -threads:v 2 -threads:a 8 -filter_threads 2 -thread_queue_size 512 -f dshow -i (...)
17:09
How can I record audio from output device using ffmpeg? - Nimeth Newest 'ffmpeg' Questions - Stack Overflow

I'm building an app (Android and iOS) that user could sing MV Karaoke over HLS video streaming. To produce a final recording for a user, I use ffmpeg to mix the audio stream taken directly from the song with user's recorded vocal and video. But the big challenge is when there are silence periods during recording due to low internet bandwidth, there would be a significant lag time in the final mixed output which is not acceptable for users. How can I use ffmpeg to live record audio being played by another player and use it to mix with user's (...)
13:28
FFMpeg command doesn't works for 4.0-39-gda39990 version but works for 3.0.1 version - Android Developer Newest 'ffmpeg' Questions - Stack Overflow

I run below FFmpeg command to cut video using 4.0-39 version- "-y","-i","/storage/emulated/0/Movies/g3cm1tt7qtd41.mp4.mp4", "-ss", "10", "-t", "53", "-c", "copy","/storage/emulated/0/Movies/cut_video10.mp4" It returns success with below response but the output video cannot be played!However same command runs fine when using older version 3.0.1 of FFMpeg and output video can be played! SUCCESS with output : ffmpeg version n4.0-39-gda39990 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 4.9.x (GCC) 20150123 (prerelease) (...) -- https://gofile.io/d/7aFuQo
11:58
FFMPEG exec exit code 126 - Ali Lord Newest 'ffmpeg' Questions - Stack Overflow

here is my code for FFMPEG $mp3path=realpath("1.mp3"); $cmd = "/usr/include/ffmpeg -i $mp3path -ab 128 /home/swiftfa1/public_html/output.mp3 2>&1"; exec($cmd, $output, $value); echo ''; print_r($output); echo ''; echo ''; print_r($value); echo ''; exit; and here is my result: Array ( [0] => sh: /usr/include/ffmpeg: Is a directory ) 126 I used whereis for ffmpeg path and searched a lot but can't solve my issue. any command returns (...)
10:05
Adding background music using fluent-ffmpeg - Dhawal Patel Newest 'ffmpeg' Questions - Stack Overflow

I've been trying to add background audio to another audio file. Here is what I tried : const audio_urls = ['/path/audio1.m4a', '/path/audio2.m4a']; const file_name = 'merged_file.m4a'; ffmpeg() .input(audio_urls[0]) .input(audio_urls[1]) .on('end', async function (output) console.log(output, 'files have been merged and saved.') ) .saveToFile(file_name) For some reason the file generated only has the second audio file sound (i.e. audio2.m4a). Any help is (...)
09:54
ffmpeg: Transcoding multiple input files to multiple output files with single command - Abubakar Newest 'ffmpeg' Questions - Stack Overflow

I want to convert three files with a single command. I used the following command: i "C:\\fil1.mp4" -i "C:\\file2.mp4" -i "C:\\file3.mp4" -acodec libmp3lame -ab 32k -ar 22050 -ac 2 -b:v 128k -r 20 -s 176x144 -y file1.mp4 -acodec libmp3lame -ab 32k -ar 22050 -ac 2 -b:v 128k -r 20 -s 176x144 -y file2.mp4 -acodec libmp3lame -ab 32k -ar 22050 -ac 2 -b:v 128k -r 20 -s 176x144 -y file3.mp4 but it convert first file with named fil1.mp4, fil2.mp4, fil3.mp4 but i want all files should be convert with its output file (...)

Revisions : socialtags http://zone.spip.org/trac/spip-zone/log/_plugins_/socialtags

06:15
Sans titre Revisions : socialtags

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

03:23
How display video on website using python - Kylo_Entro Newest 'ffmpeg' Questions - Stack Overflow

I do video processing with OpenCV and Python and I want to display it on a website. I have a website in VueJS and python backend using Flask. When a user want a video, my backend use OpenCV to generate this video and I want the user see the video on the website, but I don't know how to display the video. I check FFMPEG but I tried many tuto and I can not see the video on my web browser $ ffmpeg -re -i [INPUT] -c copy -f flv "rtmp://127.0.0.1/app/streamName live=1" [tcp ⓐ 0x565112abb500] Connection to tcp://127.0.0.1:1935 failed: Connection (...)
01:28
How to convert a video to AV1 using FFMPEG? - Seif Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to convert videos to the new AV1 video codec using an FFMPEG's experimental feature that utilizes a project called dav1d. This is the ffmpeg command I use: ffmpeg -i demo.mp4 -map_metadata -1 -c:a libopus -c:v libdav1d -crf 34 -b:v 0 -pix_fmt yuv420p -movflags +faststart -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -strict experimental video.av1.mp4 However, I receive this error: Unknown encoder 'libdav1d' The docs say that I need to pass this flag to the (...) -- AV1 video codec, FFMPEG's experimental feature, dav1d,

16 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

01:24
avcodec/frame_thread_encoder: remove usage of avcodec_encode_video2() - James Almer git.videolan.org Git - ffmpeg.git/rss log

avcodec/frame_thread_encoder: remove usage of avcodec_encode_video2() Call the encoder's internal AVCodec.encode2() function instead. Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/encode.c [DH] libavcodec/frame_thread_encoder.c
23:31
avformat/segment: Propagate disposition - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/segment: Propagate disposition Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/segment.c
00:31
avcodec/pnmdec: Use unsigned for maxval rescaling - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log

avcodec/pnmdec: Use unsigned for maxval rescaling Fixes: signed integer overflow: 65535 * 55335 cannot be represented in type 'int' Fixes: 21955/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PGMYUV_fuzzer-5669206981083136 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/pnmdec.c
19:45
avfilter/vf_colorkey: fix formula for calculation of difference - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/vf_colorkey: fix formula for calculation of difference Also fixes colorhold filtering. [DH] libavfilter/vf_colorkey.c [DH] tests/ref/fate/ffmpeg-filter_colorkey
19:48
avfilter/vf_chromakey: fix formula for calculation of difference - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/vf_chromakey: fix formula for calculation of difference [DH] libavfilter/vf_chromakey.c
16:06
avformat/dump: Use int64_t for intermediate time values - Derek Buitenhuis git.videolan.org Git - ffmpeg.git/rss log

avformat/dump: Use int64_t for intermediate time values Prevents wrap-around to negative values while calculating the duration string. Before: Duration: -411422:-59:-42.17, start: 0.000000, bitrate: 0 kb/s After: Duration: 781623:28:34.17, start: 0.000000, bitrate: 0 kb/s Signed-off-by: Derek Buitenhuis <derek.buitenhuisⓐgmail.com> [DH] libavformat/dump.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

23:45
FFMPEG: How to extract a PNG sequence from a video, remove duplicate frames in the process and keep the original frame number? - Simon Newest 'ffmpeg' Questions - Stack Overflow

I have a recording of an old game which has variable framerate. Since I want to process individual frames to upscale and modernize the footage I would like to avoid any duplicate frames. I know that I can use this function to extract all frames from a video: ffmpeg -i input.mov -r 60/1 out%04d.png And I know that I can remove duplicate frames using this function: ffmpeg -i input.mov -vf mpdecimate,setpts=N/FRAME_RATE/TB output.mov However, the above command removes duplicate frames and puts frames next to each other whereas in order to (...)
23:39
FFMPEG fdk_aac Static Windows Builds - Buzz Newest 'ffmpeg' Questions - Stack Overflow

I'm new in FFMPEG. I have download ffmpeg windows build but libfdk_aac is not enabled. Where I can get the ffmpeg build with complete encoder with libfdk enabled?
21:30
What ffmpeg output format (-f) do I use for two-pass encoding of mkv files - Mav-Tek Newest 'ffmpeg' Questions - Stack Overflow

I recently backed up one of my Blu-ray movies and it is about 36 GB. Using ffmpeg to get info from the video, it is in h.264 in an mkv container. I want to shrink the file size using h.265 compression and targeting a bitrate of 4 Mbits/s so that I can stream it while I am away from my home over my Plex server. My upload speed is limited to 5 Mb/s. Although I could easily do this with simple software, I want to learn more coding. I have found the proper ffmpeg code two do a two-pass encoding, but in all examples I have found, they use an output format of mp4 but state that "you (...) -- ffmpeg code
20:51
FFMPEG: Add changing overlay on a live stream [duplicate] - Naved Khan Newest 'ffmpeg' Questions - Stack Overflow

I will be receiving a stream over RTMP. I need to use FFMPEG and overlay text onto the video. This will not be a static overlay, the text needs to change as the video progresses. How would I achieve this with FFMPEG?
19:51
Discord.py Music Bot problem with FFmpeg on heroku - Phantom_7331 Newest 'ffmpeg' Questions - Stack Overflow

I'm coding my first music bot for discord and successfully tested it on the localhost. After that, I moved it on Heroku and installed FFmpeg buildpack for it. But for some reason, it doesn't work. Here is proof that I installed FFmpeg buildpack on Heroku: Screen Here is my code (that works well on localhost): youtube_dl.utils.bug_reports_message = lambda: '' ytdl_format_options = 'format': 'bestaudio/best', 'outtmpl': (...) -- Screen
19:43
How do you convert an entire directory with ffmpeg? - Eugene Newest 'ffmpeg' Questions - Stack Overflow

How do you convert an entire directory/folder with ffmpeg via command line or with a batch script?
18:58
ffmpeg Map with multiple input files - cclloyd Newest 'ffmpeg' Questions - Stack Overflow

I have two files. One with a single video stream and another with one audio stream and one subtitle stream. How can I merge these two files together? I tried using the command ffmpeg -y \\ -i "video.mkv" \\ -i audioandsubtitles.mkv \\ -c copy \\ ~/Downloads/output.mkv" but it only copied the audio and video stream, not the subtitle stream. How can I make it merge all three?
18:49
Tracking duration from an ffmpeg stream piped into Nodejs - slifty Newest 'ffmpeg' Questions - Stack Overflow

The Situation I have a video file that I want to process in nodejs, but I want to run it through ffmpeg first in order to normalize the encoding. As I get the data / for a given data event I would like to be able to know how "far" into the video the piped stream has progressed. The Code I am using Nodejs to invoke ffmpeg to take the video file path and then output the data to stdout (in this example I'm not doing transcoding, for the sake of simplicity): const ffmpegSettings = [ '-i', './path/to/video.mp4', // Ingest a (...)
18:23
How to loop over gif file finite number of times while creating mp4 as output with ffmpeg - in-user Newest 'ffmpeg' Questions - Stack Overflow

I am able to convert gif file to mp4 using this command: ffmpeg -i animated.gif -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" video.mp4 What I want to do is to loop over gif animation 3 times and convert to mp4. I am able to do this with 2 shell commands. First one from above and then concatenate the same video 3 times. ffmpeg -f concat -safe 0 -i I have also tried with -ignore_loop 0 option and setting time. It does work but it is not exactly what I am trying to do since I can extend the video but can (...)
17:47
Screen recording and live streaming (Windows DXGI) - C++ - NewbieCoder Newest 'ffmpeg' Questions - Stack Overflow

I am using the Desktop Duplication API in Windows to obtain images of the screen. I know to obtain the bitmap image of the screen by using the API but I am stuck after this. To stream it to the server I thought of encoding it into H264 and then encoding that again to RTMP and then streaming it to the server. Is there a better and faster way? I searched many times and most of the answers are using FFmpeg and just finishing the whole task of screen recording to streaming in a single line. Please tell me a way to do this programmatically!! How do I encode to H264 and then (...)
16:49
'arecord' works but FFMPEG 'cannot open audio device' - kwithnail Newest 'ffmpeg' Questions - Stack Overflow

On my Linux-based QNAP NAS, I can successfully record my Loopback audio device using: # arecord -D default:CARD=Loopback test.wav However, FFMPEG cannot use this same audio device. It returns: [alsa ⓐ 0x5a45880] cannot open audio device hw:default:CARD=Loopback (No such file or directory) hw:default:CARD=Loopback: Input/output error I've also tried any number of hw: options in FFMPEG. For what it's worth, the arecord -l command returns: **** List of CAPTURE Hardware Devices **** card 0: PCH [HDA Intel PCH], device (...)
15:20
FFmpeg send duplicate frames until input have have new frames - Zahid Nisar Newest 'ffmpeg' Questions - Stack Overflow

I am feeding MKV file into ffmpeg using stdin the mkv has h264 and opus codecs in it I want to send this to rtmp the mkv is genrated at run time the problem is that some time mkv pause for a time at this time I want to send last frame to rtmp server I am doing this as following but no result streamer = spawn(ffmpegPath, ['-y', '-i', '-', '-i', '-', '-f', 'lavfi', '-i', 'nullsrc=s=1280x720:d=35:r=25', '-vcodec', 'libx264', '-preset', 'medium', (...)
14:18
FFMPEG: How to add two more audio streams? - F O X Newest 'ffmpeg' Questions - Stack Overflow

This is my already working stream: ffmpeg -f lavfi -i anullsrc -rtsp_transport tcp -i rtsp://stream1video -i rtsp://stream2audio -c:v copy -map 1:v -map 2:a -preset veryfast -pix_fmt + -c:a aac -f flv rtmp://a.rtmp.youtube.com/.... Now I would like to add two more audio files in the background in a loop. something like this: -i /1.aac -i /2.aac So it should be something like: ffmpeg -f lavfi -i anullsrc -rtsp_transport tcp -i rtsp://stream1video -i rtsp://stream2audio -stream_loop 1 -i /1.aac -stream_loop 1 -i 2.aac -c:v copy (...)
14:10
Removing hidden characters from text file with tr while keeping latin-2 - philk Newest 'ffmpeg' Questions - Stack Overflow

I have some text files with hidden characters and I'm able to remove them with this command: tr -cd '\\11\\12\\15\\40-\\176' final_file This command would be perfect if I could keep latin-2 characters. I can't find info about 6 digit octal in tr man page. How can add characters with octal value like \\305\\237 or \\303\\256 to that tr command ? I need to keep this list: \\304\\202 Ă \\304\\203 ă \\303\\216 Î \\303\\256 î \\303\\202 Â \\303\\242 â \\305\\236 Ş \\305\\237 ş \\305\\242 Ţ \\305\\243 (...)
13:34
How to trim a video by 4 fragments to 4 seconds using the PHP-FFMpeg? - Sergey Kozlov Newest 'ffmpeg' Questions - Stack Overflow

How to trim a video using the PHP-FFMpeg? I need to implement the following FFMpeg command: ffmpeg -i 7207783801bb.mp4 -filter_complex \\ "[0:v]trim=start=10:end=11,setpts=PTS-STARTPTS[a]; \\ [0:v]trim=start=20:end=21,setpts=PTS-STARTPTS[b]; \\ [a][b]concat[c]; \\ [0:v]trim=start=30:end=31,setpts=PTS-STARTPTS[d]; \\ [0:v]trim=start=40:end=41,setpts=PTS-STARTPTS[f]; \\ [d][f]concat[g]; \\ [c][g]concat[out1]" -map [out1] 7207783801bbout.mp4 When I use the following code: $ffmpeg = FFMpeg\\FFMpeg::create(); $video = (...)
11:38
Audio codec variable frame size - Andrey Rikunov Newest 'ffmpeg' Questions - Stack Overflow

Are there any audio codec with variable samples per frame? Constant samples per frame allow audio slicing easily and accurately. For example, AAC uses 1024 samples per frame.
11:27
How to use FFmpeg Colorspace Options - Matt McManis Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to understand the difference between Colorspace FFmpeg arguments: Normal option, -colorspace bt709 Number, -colorspace 1 Codec Params -x264-params "colorspace=bt709" Filter -vf "colorspace=bt709" The Colorspace categories are: all iall colorspace transfer primaries color range color matrix Question When should each be used when encoding from raw, or transcoding/converting from one format to another? Such as mpg to mp4. Do I need to specify the input (...) -- FFmpeg, https://ffmpeg.org/ffmpeg-filters.html#colormatrix, https://ffmpeg.org/ffmpeg-filters.html#colorspace, https://trac.ffmpeg.org/wiki/colorspace

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

11:12
avfilter/vsrc_sierpinski: unbreak configuring rate value - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/vsrc_sierpinski: unbreak configuring rate value [DH] libavfilter/vsrc_sierpinski.c
11:10
avfilter/vsrc_mandelbrot: unbreak configuring rate value - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter/vsrc_mandelbrot: unbreak configuring rate value [DH] libavfilter/vsrc_mandelbrot.c

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

12:02
10.28.0 - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

10.28.0

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

08:27
Ffmpeg frame extraction with Nvidia GPU acceleration throws "Output file #0 does not contain any stream" - nickthefreak Newest 'ffmpeg' Questions - Stack Overflow

I am trying to use nvidia gpu accelerated decoder api with ffmpeg, to extract all frames from a video file (.MTS) to a folder, but it looks like it's failing for some reason; I could not find an answer or similar issues. Command used: ffmpeg -vsync 0 -hwaccel cuvid -c:v mpeg2_cuvid -i raw_video.MTS -q:v 2 -f image2 output_folder/image_%05d.jpg Traceback: ffmpeg version n4.2.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.3.0 (Arch Linux 9.3.0-1) configuration: --prefix=/usr --disable-debug --disable-static (...) --
07:57
How to set up a continuous stream from Icecast to YouTube Live using FFmpeg? - Teymur Gahramanov Newest 'ffmpeg' Questions - Stack Overflow

When Icecast servers turns off, FFmpeg trying to reconnect but with only one attempt. Here is error which i get and my script. [http ⓐ 0x556612e43f80] Stream ends prematurely at 4040716, should be 1844674407370955161597x [http ⓐ 0x556612e43f80] Will reconnect at 4040716 error=Input/output error. [tcp ⓐ 0x7fe10400b7a0] Connection to tcp://185.195.26.99:8000 failed: Connection refused [http ⓐ 0x556612e43f80] Failed to reconnect at 0. 185.195.26.99:8000/radio: Input/output error1:40.96 bitrate=2878.3kbits/s speed=0.997x After that stream continuing, (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

07:13
checkasm: swscale: Fix running the hscale test on 32 bit x86 - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

checkasm: swscale: Fix running the hscale test on 32 bit x86 This function doesn't call emms. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/sw_scale.c

Revisions : SPIP http://core.spip.org/projects/spip/activity

08:25
Anomalie #4485: Conflit bigup+ espace privé fluide + insérer modèle - josiane aletto Revisions : SPIP

tcharlss -

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

08:12
File input style fixes for old IE ( IE9) versions. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

File input style fixes for old IE (

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

07:13
getting frames from rtsp stream ffmpeg -- hang in av_read_play - Stepan Yakovenko Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to use this code to get video frames from RTSP stream: // Open the initial context variables that are needed SwsContext *img_convert_ctx; AVFormatContext* format_ctx = avformat_alloc_context(); AVCodecContext* codec_ctx = NULL; int video_stream_index; // Register everything av_register_all(); avformat_network_init(); if (avformat_open_input(&format_ctx, argv[1], NULL, NULL) != 0) return EXIT_FAILURE; if (avformat_find_stream_info(format_ctx, NULL) nb_streams; i++) if (...)
03:40
Merging of audio and video by ffmpeg - amplifier Newest 'ffmpeg' Questions - Stack Overflow

I have 2 separate webm files - video and audio part. Now I want to merge it. I use python and ffmpeg input_video = ffmpeg.input(f'title-video.webm').output("out1.webm") input_audio = ffmpeg.input(f'title-audio.webm').output("out2.webm") ffmpeg.merge_outputs(input_video, input_audio).run() Output file looks OK (it plays audio and video) but it takes time to merge it. I guess there's a needless conversion that I could avoid. Is it possible to do with the given API? I googled a command ffmpeg -i 12m.mp4 -i 6m.mp4 -c copy (...)
04:13
How to autocrop video using FFMPEG and powershell - timlwsk Newest 'ffmpeg' Questions - Stack Overflow

It should be possible to parse the output from ffmpeg's cropdetect command (to remove black borders) ffmpeg -ss 90 -i out.mkv -vframes 10 -vf cropdetect -f null and directly apply given output to the command ffmpeg -i out.mkv -vf "crop=h:w:x:y" YourCroppedMovie.mp4. Parameters are height, width, x start and y start. How to apply the given result to the second command in PowerShell?
03:58
FFmpeg/MP4 - Force all existing frames to play at fixed frame rate - MJoseph Newest 'ffmpeg' Questions - Stack Overflow

I have an MP4 video file that I suspect is corrupt, in that mediainfo reports a variable frame rate, but I believe the frames present are meant to be played at a fixed frame rate. This discrepancy causes video stuttering. Is there any way to force an MP4 container (by editing header info, or frame timing tables) to simply play back all existing frames at a fixed frame rate (i.e. 24fps). Every tip I've read assumes you want to drop and/or add frames to achieve a new frame rate, while keeping all the old frame timings (i.e. ffmpeg -r or ffmpeg -filter). These methods end up preserving (...)

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

02:04
avformat/mux: Call check_packet() more directly - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log

avformat/mux: Call check_packet() more directly Call it directly from write_packets_common() instead of indirectly through prepare_input_packet(). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐgmail.com> [DH] libavformat/mux.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

02:48
ffmpeg crash when input video got no audio line - sisterbrother Newest 'ffmpeg' Questions - Stack Overflow

I got a ffmpeg script which concate 3 videos and works fine when the input video $fp got a audio line! The first and last input video ($vid1) can be ignored for this topic cause they always have a audio line The video input $fp instead may sometimes have no audio and cause the script to crash with error: Stream specifier ':a' in filtergraph description 'then full code comes here' matches no streams. Related to this link: https://superuser.com/questions/1457683/ffmpeg-ignore-audio-export-if-no-stream-present You can use (...)
01:39
DiscordJS error : FFmpeg/avconv not found! showing up after installing it - DataDece Newest 'ffmpeg' Questions - Stack Overflow

I've been installed the FFmpeg extension using npm, and git also, and this following error still shows itself... Successfully connected. Error: FFmpeg/avconv not found! at Function.getInfo (D:\\bot\\node_modules\\prism-media\\src\\core\\FFmpeg.js:130:11) at Function.create (D:\\bot\\node_modules\\prism-media\\src\\core\\FFmpeg.js:143:38) at new FFmpeg (D:\\bot\\node_modules\\prism-media\\src\\core\\FFmpeg.js:44:27) at AudioPlayer.playUnknown (D:\\bot\\node_modules\\discord.js\\src\\client\\voice\\player\\BasePlayer.js:47:20) at VoiceConnection.play (...)
01:26
Python PyAudio mimic ffmpeg - abhinavkulkarni Newest 'ffmpeg' Questions - Stack Overflow

I have an audio utility in Ubuntu that processes audio data in a streaming fashion, let's call it /bin/speech_to_text_transcription. I am able to pipe to it, streaming WAV data from microphone as follows: ffmpeg -hide_banner -loglevel error \\ -f pulse -i default \\ -acodec pcm_s16le \\ -ar 16000 -ac 1 -ab 256k \\ -f wav - \\ | /bin/speech_to_text_transcription As you can see, I am feeding a mono-channel WAV audio file sampled at 16kHz to /bin/audio_process. I know the above works because I see successful output process I (...)

15 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

14:21
hwcontext_vulkan: move physical device feature discovery to device_init - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: move physical device feature discovery to device_init Otherwise custom vulkan device contexts won't work. [DH] libavutil/hwcontext_vulkan.c
01:21
hwcontext_vulkan: set usage for DRM imports to the frames context usage - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: set usage for DRM imports to the frames context usage They're nothing special, and there's no reason they should always use the default flags. [DH] libavutil/hwcontext_vulkan.c
01:16
hwcontext_vulkan: do not OR the user-specified usage with our default flags - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: do not OR the user-specified usage with our default flags Some users may need special formats that aren't available when the STORAGE flag bit is set, which would result in allocations failing. [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/hwcontext_vulkan.h
01:01
hwcontext_vulkan: split uploading and downloading contexts - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: split uploading and downloading contexts This allows us to speed up only-uploading or only-downloading use cases. [DH] libavutil/hwcontext_vulkan.c
00:59
hwcontext_vulkan: support user-provided pools - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: support user-provided pools If an external pool was provided we skipped all of frames init, including the exec context. [DH] libavutil/hwcontext_vulkan.c
00:37
hwcontext_vulkan: actually use the frames exec context for prep/import/export - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: actually use the frames exec context for prep/import/export This was never actually used, likely due to confusion, as the device context also had one used for uploads and downloads. Also, since we're only using it for very quick image barriers (which are practically free on all hardware), use the compute queue instead of the transfer queue. [DH] libavutil/hwcontext_vulkan.c
13:06
avfilter: add gradients source video filter - Paul B Mahol git.videolan.org Git - ffmpeg.git/rss log

avfilter: add gradients source video filter [DH] Changelog [DH] doc/filters.texi [DH] libavfilter/Makefile [DH] libavfilter/allfilters.c [DH] libavfilter/version.h [DH] libavfilter/vsrc_gradients.c
12:01
avformat/url: check the result of the strrchr - Steven Liu git.videolan.org Git - ffmpeg.git/rss log

avformat/url: check the result of the strrchr because it need be check for success, is should not change the old way if it failure. fix ticket: 8674 Signed-off-by: Steven Liu <liuqi05ⓐkuaishou.com> [DH] libavformat/url.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

23:41
Make mp4 from continuous jpg in Node.js - Dinozavr Newest 'ffmpeg' Questions - Stack Overflow

Client is sending continuous jpg to my server. The issue is: how to make one mp4 file from all these jpg files? I can save them all and use ffmpeg with “filename%3d.jpg”, when client finish sending files. But is there any way to make it real-time?
23:31
Node.js: realtime conversion from jpeg images to video file - MastErAldo Newest 'ffmpeg' Questions - Stack Overflow

I'm using node.js and through the socket.io library I receive chunks of data that are actually jpeg images. These images are frames of a realtime video captured from a remote webcam. I'm forced to stream the video as jpeg frames. I'm looking for a way to convert on the fly these jpeg images in a video file (mpeg 4 or mjpeg file). Does node have a library that can do this? I already took a look at the Node-fluent-FFMPEG library but the only examples given were about conversions of jpeg files to a video and not a conversion on the fly from a stream of jpeg images. Or (...)
23:06
How can I convert *.flv file to *.ts file using FFmpeg on command line? - Defonds Newest 'ffmpeg' Questions - Stack Overflow

How can I convert *.flv file to *.ts file using FFmpeg on command line? Is there any document about this? Best Regards, Defonds
21:43
FFMPEG How can i add watermark h264 [closed] - othmane merroun Newest 'ffmpeg' Questions - Stack Overflow

I have this command to convert my videos but i need to add a watermark , i try many solutions but nothing work (no logo showing or comande stops in middle) . $cmd1 = "ffmpeg -i $input -vcodec libx264 -preset veryslow -crf 18 -vf scale=-2:480 output.mp4 "; Thanks in adevance

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

10:24
checkasm: sw_rgb: Add a test for interleaveBytes - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

checkasm: sw_rgb: Add a test for interleaveBytes Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/sw_rgb.c
09:54
swscale: aarch64: Add a NEON implementation of interleaveBytes - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

swscale: aarch64: Add a NEON implementation of interleaveBytes This allows speeding up format conversions from yuv420 to nv12. Cortex A53 A72 A73 interleave_bytes_c: 86077.5 51433.0 66972.0 interleave_bytes_neon: 19701.7 23019.2 15859.2 interleave_bytes_aligned_c: 86603.0 52017.2 67484.2 interleave_bytes_aligned_neon: 9061.0 7623.0 6309.0 Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libswscale/aarch64/Makefile [DH] libswscale/aarch64/rgb2rgb.c [DH] libswscale/aarch64/rgb2rgb_neon.S [DH] libswscale/rgb2rgb.c [DH] (...)
00:31
avformat/mov: Don't allow negative sample sizes. - Dale Curtis git.videolan.org Git - ffmpeg.git/rss log

avformat/mov: Don't allow negative sample sizes. Signed-off-by: Dale Curtis <dalecurtisⓐchromium.org> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavformat/mov.c

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

20:27
10.27.0 - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

10.27.0
20:25
Replace deprecated shorthand methods. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

Replace deprecated shorthand methods.
20:25
Use promise.pipe for jQuery version before v1.8. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

Use promise.pipe for jQuery version before v1.8. jQuery versions before 1.8 require promise.pipe if the return value is used, as promise.then in older versions has a different behavior, see: - https://blog.jquery.com/2012/08/09/jquery-1-8-released/ - https://bugs.jquery.com/ticket/11010 - #3435 Resolves #3536, Resolves #3538

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

19:49
FFMpeg Merge audio and video files - Donal.Lynch.Msc Newest 'ffmpeg' Questions - Stack Overflow

I need to Merge an audio (.mp3) and video (.mov) file and output an mp4 file using FFMpeg PHP library. The following works: $ffmpeg = \\FFMpeg\\FFMpeg::create([ 'ffmpeg.binaries' => 'C:/ffmpeg/bin/ffmpeg.exe', 'ffprobe.binaries' => 'C:/ffmpeg/bin/ffprobe.exe' ]); /* Open video file */ $video = $ffmpeg->open('sample.mov'); /* Resize video */ $video ->filters() ->resize(new \\FFMpeg\\Coordinate\\Dimension(320, 240)) ->synchronize(); /* Take screenshot from video (...)
19:36
ffmpeg : how to extract 1st video, english audio and french subtitle from video file in one command line? - Sxilderik Newest 'ffmpeg' Questions - Stack Overflow

I have read many posts related to extracting streams per language with ffmpeg, but it seems that the -map 0:m:language:xxx is global, and goes for all streams. Let’s say I have a video file that contains hopefully one english audio stream and some french subtitle streams, among possibly many other streams. I want to get a smaller file with the first video track, the (first) english audio stream and all the french subtitle streams. If I run ffmpeg -i "$file" -map 0:v:0 -vcodec copy -map 0:m:language:eng -acodec copy -map 0:m:language:fre -scodec copy -f matroska (...)
19:27
Saving video to SD card while live streaming to YouTube using FFmpeg - Zohair Ul Hasan Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to set up a Raspberry Pi so that it live streams video to YouTube using the Raspberry Pi camera and also saves the video to the SD Card for backup, in case the internet gets disconnected. I used Alex Ellis's guide to set it up, which is basically a docker image that anyone can download and set it up. He sets up the live stream to YouTube but doesn't save the video offline. So, I tinkered with his code and found that he used FFmpeg to stream to YouTube. The following line is basically the heart of his method to stream: raspivid -o - -t 0 -w 1920 (...) -- guide

Revisions : SPIP http://core.spip.org/projects/spip/activity

20:15
Anomalie #4312 (Fermé): Oubli de report du commit : protection contre les bots qui floodent tmp/s... - b b Revisions : SPIP
20:13
Révision 24578: report adapté de a0c24ecb6f8c1d70dce86b859eb448fb0415d869 - giteaⓐfake.local Revisions : SPIP

Ref #4312
20:10
Anomalie #4031: liste des traductions existantes non visibles pour un rédacteur - b b Revisions : SPIP

À voir si on report en 3.2...
20:09
Anomalie #4031 (Fermé): liste des traductions existantes non visibles pour un rédacteur - Anonyme Revisions : SPIP

Appliqué par commit r24577.
20:08
Révision 24577: Fix #4031 : rétablir l'affichage de la liste des traductions d'un objet pour un r... - giteaⓐfake.local Revisions : SPIP

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

19:12
Segment FFmpeg output at its keyframe - Mascarpone Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to segment a video file at its keyframes: ffmpeg -f x11grab -framerate 30 -i :0.0 \\ -vcodec libx264 -x264-params keyint=1:min-keyint=2:no-scenecut \\ -force_key_frames "expr:gte(1,0)" -t 5 -pix_fmt yuv420p \\ -f ssegment -segment_format mp4 \\ -segment_format_options movflags=+frag_keyframe+empty_moov+default_base_moof \\ out%03d.mp4 Every frame is a keyframe, so segment should split at every frame, but it doesn't. The splitted files contains multiple keyframes, and can't play properly. What am (...)
18:57
Add watermark, set bitrate and scale video - razz Newest 'ffmpeg' Questions - Stack Overflow

I'm looking for the command to edit a video with ffmpeg according to instructions below. The original video can be any type in any size or resolution (mp4,avi,wmv etc) and needs to be converted to mp4 Convert video to .mp4 Add a watermark at the right bottom Set a Bitrate (accepted values between 1500 - 2000 ) Resize width to 1280px (keep aspect ratio)

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

16:20
10.26.0 - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

10.26.0
16:20
Update optional and dev dependencies. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

Update optional and dev dependencies.
14:31
Wrap handler settings in a FilesMatch directive. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

Wrap handler settings in a FilesMatch directive. FilesMatch directives override Directory settings, see also: https://httpd.apache.org/docs/current/sections.html#merging

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

16:29
How to setup ffmpeg for discord.py on windows 10 - Legacy Coding Newest 'ffmpeg' Questions - Stack Overflow

I'm creating a discord.py bot that will play music and I'm having trouble using FFMPEG. The FFMPEG download is in my project folders but its still saying that it cant be found. The problem is probably that I havent added it to PATH but I dont know how to do that so if anyone could help me get it working that would be brilliant!
13:53
calc_avgy8 from ffmpeg need explanation - user3524642 Newest 'ffmpeg' Questions - Stack Overflow

I want to implement my own deflicker so I took a look into ffmpeg library as an example. During deflicker it calculates the average pixel luminance. The calc_avgy8 (from deflicker.c) function seems to compute histogram and the mean of the histogram: static float calc_avgy8(AVFilterContext *ctx, AVFrame *in) DeflickerContext *s = ctx->priv; const uint8_t *src = in->data[0]; int64_t sum = 0; int y, x; memset(s->histogram, 0, (1 depth) * sizeof(*s->histogram)); for (y = 0; y planeheight[0]; y++) for (x = 0; x (...)
12:09
Bot isn't playing music [closed] - DevTeddy Newest 'ffmpeg' Questions - Stack Overflow

My bot can join, but it isn't playing any music! The code is written is Javascript, and I am using Discord.js , Node.js and FFmpeg. The prefix and token are in a seperate JSON file. There are no errors in the Console, though. Also, it says the "added song to queue" message twice, for some reason. I have already tried using VS Code's debugger and checked it for errors. Please help me! My code is at: https://github.com/Dev-Ted/ForestBot (...) -- https://github.com/Dev-Ted/ForestBot
15:09
How to send hevc bitstream to ffplay using PIPE on windows? - Yusw_SJTU Newest 'ffmpeg' Questions - Stack Overflow

I have a C program that timed to generate hevc bitstreams, and I try to put the latest NALU to stdout like this: fwrite(nalu, sizeof(unsigned char),nalu_size, stdout); fflush(stdout); And then use myprogram.exe | ffplay -i - to play the bitstream. But it doesn't work. The program will block, and finally get ffplay error: [hevc ⓐ 000002de9f2af200] vps_reserved_ffff_16bits is not 0xffff0 [hevc ⓐ 000002de9f2af200] VPS 0 does not exist [hevc ⓐ 000002de9f2af200] SPS 0 does not exist. [hevc ⓐ 000002de9f2af200] PPS id out of range: (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

12:54
Evolution #4490: Widget choix d'affichages - b b Revisions : SPIP

+1 gogogo :)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

12:41
'ffmpeg' is not recognized as an internal or external command in Hapi js(Node js) - Eswar Newest 'ffmpeg' Questions - Stack Overflow

I want to add on watermark image to while uploading a video. I tried to use node ffmpeg but unluckily the git base command line says *"ffmpeg"** not recognized. 'ffmpeg' is not recognized as an internal or external command,operable program or batch file. const createVideoWatermark = async () => try const ffmpeg = require("ffmpeg"); var process = new ffmpeg('./uploads/video1.mp4'); process.then(async function (video) console.log('The video is ready to be processed'); var watermarkPath = (...)
12:12
FFMPEG command to mix audio and video with adjustable volume - Tomin Newest 'ffmpeg' Questions - Stack Overflow

I have: Video file of X length Audio of Y length I am trying to achieve an output video that has the following qualities: The volume level of the added audio should be adjustable The audio should loop till the end of the video It should not break even if the input video does not have any audio I should be able to mute the audio of the source video if needed. All of the above, in the fastest possible way. I'm not well versed with FFMPEG, maybe some experts could (...)
12:00
How to setup live video stream from webcam to the server, and then beyond? [closed] - Parth Sarthi Newest 'ffmpeg' Questions - Stack Overflow

I have an application, that is written in Node and Nuxt, to host online exams. My clients are now demanding youtube like livestream for their students. I can't use WebRTC because there will be thousands of students watching the live video, so I don't think teacher's bandwidth will be able to deliver that. Now I want to know what other options do I have? How do I send video stream from teacher's laptop to the server in real time? I am assuming getUserMedia? Then how do I convert the live stream incoming from the teacher into something like HLS? I am assuming (...)

Revisions : SPIP http://core.spip.org/projects/spip/activity

11:48
Evolution #4488: [API rôles] Des rôles uniques - RastaPopoulos ♥ Revisions : SPIP

Bé si j'ai bien lu puisque j'ai dit que ça existait mais au départ la proposition somnolante était moins bien que celle de Rôles de docs, donc je disais que l'autre était mieux mais : "Juste à généraliser à l'ensemble de l'API, et non pas que pour les documents.", donc c'est bien ça reprendre la structure mise en place pour les docs, mais la généraliser à l'ensemble de l'API direct dans le noyau, yes :) Et moi "uniques" ça me va aussi :p Je n'arrive plus à me souvenir de pourquoi on avait choisi "principaux", mais on avait quand même réfléchi un moment au meilleur nom, donc il devait bien y avoir une (...)
11:38
Evolution #4488: [API rôles] Des rôles uniques Revisions : SPIP

C'est déjà ce que fait Rôles de documents, avec la déclaration "roles_principaux" Hum, t'as pas lu le 1er message jusqu'au bout ? :p Oui la proposition se base évidemment sur ce qu'on a fait sur rôles de documents, sauf que si ça doit être valable pour tous les objets, le terme « uniques » me semble plus générique et parlant que « principaux ». Et d'ailleurs ceux qui doivent être uniques, doivent absolument être définis objet par objet donc à l'intérieur de "roles_objets" Ah oui, boulette dûe à l'heure tardive. Je corrige dans le message (...)
00:36
Evolution #4488: [API rôles] Des rôles uniques - RastaPopoulos ♥ Revisions : SPIP

Et d'ailleurs ceux qui doivent être uniques, doivent absolument être définis objet par objet donc à l'intérieur de "roles_objets", car c'est pas forcément les mêmes pour chaque. Et c'est là encore… ce que fait déjà Rôles de documents. Du coup la présente proposition ne me semble pas correcte, vu que ça existe déjà en mieux : https://git.spip.net/spip-contrib-extensions/roles_documents/src/branch/master/base/roles_documents.php#L45 Juste à généraliser à l'ensemble de l'API, et non pas que pour les (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

11:11
projection is not preserved in nginx+ffmpeg 360 video streaming - Ram Newest 'ffmpeg' Questions - Stack Overflow

I am using nginx rtmp module and ffmpeg to stream a 360 degree video, I Am able to stream and play in VLC player, however in during playback 360 video is not preserved. video is playing side by side. Following is my command sudo ffmpeg -i sampleVideo.mp4 -vcodec libx264 -vprofile high -acodec aac -f flv rtmp://localhost/show/stream2
10:45
FFMPEG MKV to HLS how to keep audio and video in sync using codec_time_base - LordFenixNC Newest 'ffmpeg' Questions - Stack Overflow

I am doing BULK encodes of MKVs to multi resolution, audio track, subtitle track HLS folders. I have ran into a issue with Audio not being in sync. Locally or online. is there a way to include codec_time_base data into the encode to help with this?
10:17
Blend video with ffmpeg instead of chromakey? - Nguyễn Văn Thân Newest 'ffmpeg' Questions - Stack Overflow

I have a green background video. I want to separate the green background. With chromakey filter to bring results but I'm really not satisfied.I can replace it with blend. There is too little documentation for it. For example, color system and options.? Can anybody give me more suggestions about it. I appreciate it. thanks Here is an example I collected. -i "color=red:s=1280x720" -filter_complex "blend=shortest=1:all_mode=overlay:all_opacity=0.7"
10:07
Cutting movie with ffmpeg result in audio/video desync - T4ng10r Newest 'ffmpeg' Questions - Stack Overflow

I've concate long ago set of movies taken during some lecture. Now I want to cut them for each question/answer. I do it like this. ffmpeg -ss 00:00:34.7 -t 00:10:44.6 -y -i input_movie.mp4 -vcodec copy -acodec copy output_1.mp4 ffmpeg -ss 00:11:22.2 -y -i input_movie.mp4 -vcodec copy -acodec copy output_2.mp4 Yet, for the second part I can't set proper starting point so audio and video would be in sync. Usually I could fix it with small tweeks in cut start time (like .1, .2, and so on). For this case this doesn't (...)
09:57
Is ffmpeg giving incorrect frame count? - trshmanx Newest 'ffmpeg' Questions - Stack Overflow

The videos Duration: 00:00:06.93 and 25 fps If we do the math it's 173.25 (173 rounded) frames. However this command ffmpeg -i video.mp4 -qscale:v 1 filename_%06d.jpg extracts 172 frames. Am I calculating or doing something wrong? I want to use this of some automation in my Python project. Edit: I do have video frame in 6.840000 [FRAME] media_type=video stream_index=1 key_frame=0 pkt_pts=171000 pkt_pts_time=6.840000 pkt_dts=N/A pkt_dts_time=N/A best_effort_timestamp=171000 best_effort_timestamp_time=6.840000 -- here
09:07
Create RTP packets with audio or video for a particular codec in FFmpeg - easy_breezy Newest 'ffmpeg' Questions - Stack Overflow

I'm new to FFmpeg and I want to stream audio and video data from my android device to another device (PC, Android, iOS, Mac it doesn't matter) in real time (RTP packets by UDP) by Wi-Fi or LTE. My audio is encoded in G711 or Opus codec and my video is H264, so my question is: is there way to create RTP packets for encoded audio or video using FFmpeg in C++ code? I'd like to have something like this: I encode my audio and video using FFmpeg or third party library. I pass my encoded data and it's metadata (like a keyframe flag, (...)
08:29
ffmpeg combine audio mix code into complex concate script - sisterbrother Newest 'ffmpeg' Questions - Stack Overflow

I got currently 2 different ffmpeg scripts which I want to combine. I do not have good ffmpeg experience and those codes are mostly googel code so please be patient with me The first code is concating 3 videos: ffmpeg -y -i "$vid1" -i "$fp" -i "$vid1" -filter_complex \\ "[0:v]scale=$cResolution:force_original_aspect_ratio=decrease,pad=$cResolution:(ow-iw)/2:(oh-ih)/2,setsar=1,fps=30,format=yuv420p[v0]; \\ [1:v]scale=$cResolution:force_original_aspect_ratio=decrease,pad=$cResolution:(ow-iw)/2:(oh-ih)/2,setsar=1,fps=30,format=yuv420p[v1]; \\ (...)
07:49
ffmpeg: Encoding a single live video stream into different resolutions and keeping them in sync - Almus Newest 'ffmpeg' Questions - Stack Overflow

I'm using NGINX as a simple HLS live video server. Sending an rtmp stream into the server, transcoding it into three different resolutions for delivery using HLS to users with different bandwidth limits. The problem I'm having is that when I take the 1080p 30fps input transcode it down to 480p and 720p then split it into chunks with HLS the segments from the two transcoded outputs are not in sync with the copied full resolution stream. here is what I am doing now: exec FFmpeg on the source rtmp stream: exec ffmpeg -i (...)
07:09
FFmpeg Opus choppy sound - easy_breezy Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFmpeg and try to encode and decode a raw PCM sound to Opus using a built-in FFmpeg "opus" codec. My input samples are raw PCM 8000 Hz 16 bit mono, in AV_SAMPLE_FMT_S16 format. Since Opus requires sample format AV_SAMPLE_FMT_FLTP and sample rate 48000 Hz only, so I resample my samples before encode them. I have two instances of ResamplerAudio class that does the work of resampling audio samples and has a member of SwrContext, I use the first instance of ResamplerAudio for resampling a raw PCM input audio before encoding and the second for resampling decoded audio (...)
06:41
How can I use ffmpeg to convert SRT subtitle files to ASS and adjust the font size and color? - S. Park Newest 'ffmpeg' Questions - Stack Overflow

I have been using Aegisub to export SRT files as ASS and apply specific appearance settings, but this is tedious when you have to process many SRT files. Is there a better way to do this via the command line with ffmpeg? Note that I am working with soft subs and do not want to hard sub/encode the subtitles into the video files. This is the command I tried to use, but it doesn't work. The SRT is converted to ASS but without any of the specified appearance settings. ffmpeg -i mysubs.srt -filter (...)
04:49
Streaming different MP3 files using Ezstream and Icecast - hh083 Newest 'ffmpeg' Questions - Stack Overflow

I am trying to stream two MP3 files to Icecast using Ezstream and the stream should run in web browsers. The files I am testing with were downloaded as webm and converted to MP3 using ffmpeg. They have the same channels count, same bitrate and same sample rate but different duration. My setup: the Ezstream xml configuration file is set to stream MP3 and a program playlist is used to identify what is the next file to be streamed, and no encoders or decoders are used. When I start streaming I save the process ID of the Ezstream process (using the -p argument), and then I use the (...)
04:33
Streaming video from Unity's camera target texture to RTSP - Kronon Newest 'ffmpeg' Questions - Stack Overflow

I've been trying to find ways of streaming video from Unity's camera to an RTSP stream. So far I've been trying out this particular plugin here https://github.com/keijiro/FFmpegOut which takes the camera's target texture as the input, and outputs it as an MP4 file on the disk, and https://github.com/aler9/rtsp-simple-server as a simple RTSP server My initial thought was that it'd be as easy as changing the original FFMPEG commandline syntax from this: "-y -f rawvideo -vcodec rawvideo -pixel_format rgba" + " -colorspace (...) -- https://github.com/keijiro/FFmpegOut, https://github.com/aler9/rtsp-simple-server
04:16
Does ffmpeg supported KLV metadata? - ransh Newest 'ffmpeg' Questions - Stack Overflow

Is ffmpeg metadata, which is also described in: http://wiki.multimedia.cx/index.php?title=FFmpeg_Metadata also supported MISB standard UAV metadata 601.5 ? Is it same as KLV ? Thanks, Ran -- http://wiki.multimedia.cx/index.php?title=FFmpeg_Metadata
03:35
Strip audio and subtitle sources and add it to INDEX.M3U8 using PowerShell and FFMPEG - LordFenixNC Newest 'ffmpeg' Questions - Stack Overflow

I am using a custom script to convert video files to multi resolution HLS. I have switched to a new web player that will allow me to support Subtitle Tracks and Audio tracks selections. I am having a hard time figuring out how to edit my script to take a .MKV and strip all the audio sources and subtitle sources and add it to the INDEX.M3U8 My Current Script: $sw = [Diagnostics.Stopwatch]::StartNew() $files = Get-ChildItem $Get-Location $loco = Get-Location $p1 = Join-Path -Path $loco -ChildPath "/out" echo $p1 New-Item -ItemType Directory (...)
03:22
Exception during matplotlib animation - Leonardo Araujo Newest 'ffmpeg' Questions - Stack Overflow

this is my first time posting here. I'm running this code which is a matplotlib (version 3.2.1) animation example, so it was supposed to work fine. import numpy as np from matplotlib import pyplot as plt from matplotlib import animation plt.rcParams['animation.ffmpeg_path'] = '/opt/local/bin/ffmpeg' # First set up the figure, the axis, and the plot element we want to animate fig = plt.figure() ax = plt.axes(xlim=(0, 2), ylim=(-2, 2)) line, = ax.plot([], [], lw=2) # initialization function: plot the background of (...)
01:31
Not able to show RTSP stream with Angular - Q.Rey Newest 'ffmpeg' Questions - Stack Overflow

i'm working on a web application with angular where i need to show an rtsp stream inside my window. I'm using JSMpeg player related to this topic : Not able to Show live camera RTSP streaming with Angular. For my websocket i used the node websocket library and i runned it like this in my cmd : node websocket-relay.js supersecret 8081 8082 It detect each connection i make on it. Then for the conversion part i used FFMPEG where I convert a h264 format to mpegts (mpegvideo1 gave me an error) I run it like this : ffmpeg -i (...) --
00:57
Load output of ffmpeg command in text file which detects silences - Jitender Kumar Newest 'ffmpeg' Questions - Stack Overflow

How can I load the output of below command into a text file? ffmpeg -i units.wav -af silencedetect=noise=-20dB:d=0.2 -f null - This command simply detects the silences from a video and I need to store this output in a text file. I have also found this link but as I am newbie in ffmpeg I am not able to use it in my command. Thanks..

14 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

22:53
hwcontext_vulkan: wrap ImageBufs into AVBufferRefs - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: wrap ImageBufs into AVBufferRefs Makes it easier to support multiple queues [DH] libavutil/hwcontext_vulkan.c
22:52
lavfi/vulkan: fix 2 minor memory leaks - Lynne git.videolan.org Git - ffmpeg.git/rss log

lavfi/vulkan: fix 2 minor memory leaks [DH] libavfilter/vulkan.c
01:37
lavfi/vulkan: use all enabled queues in the queue family - Lynne git.videolan.org Git - ffmpeg.git/rss log

lavfi/vulkan: use all enabled queues in the queue family This should significantly improve the performance with certain filterchains. [DH] libavfilter/vf_avgblur_vulkan.c [DH] libavfilter/vf_chromaber_vulkan.c [DH] libavfilter/vf_overlay_vulkan.c [DH] libavfilter/vf_scale_vulkan.c [DH] libavfilter/vulkan.c [DH] libavfilter/vulkan.h
01:28
hwcontext_vulkan: use all enabled queues for transfers, make uploads async - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: use all enabled queues for transfers, make uploads async This commit makes full use of the enabled queues to provide asynchronous uploads of images (downloads remain synchronous). For a pure uploading use cases, the performance gains can be significant. [DH] libavutil/hwcontext_vulkan.c
22:53
Revert "avfilter/vf_minterpolate: if metadata lavfi.scd.mafd exists, we'll use it... - Marton Balint git.videolan.org Git - ffmpeg.git/rss log

Revert "avfilter/vf_minterpolate: if metadata lavfi.scd.mafd exists, we'll use it first" This reverts commit d88e1c9838dbcfe29d7835f2705ffc9ee6a36bf3. Fixes null pointer dereference. Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavfilter/vf_minterpolate.c
22:49
Revert "avfilter/vf_framerate: if metadata lavfi.scd.mafd exists, we'll use it first" - Marton Balint git.videolan.org Git - ffmpeg.git/rss log

Revert "avfilter/vf_framerate: if metadata lavfi.scd.mafd exists, we'll use it first" This reverts commit 339593ca90cb3e05d659ec99a1479904ec742294. Fixes null pointer dereference. Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] libavfilter/vf_framerate.c

Revisions : SPIP http://core.spip.org/projects/spip/activity

22:23
Evolution #4488: [API rôles] Des rôles uniques - RastaPopoulos ♥ Revisions : SPIP

C'est déjà ce que fait Rôles de documents, avec la déclaration "roles_principaux"
21:19
Evolution #4488: [API rôles] Des rôles uniques - nicod _ Revisions : SPIP

+1, ce serait vraiment très très pratique.
20:43
Evolution #4490 (Nouveau): Widget choix d'affichages Revisions : SPIP

Je propose de sortir le petit script des choix d'affichages du plugin medias, de le rendre générique et de l'intégrer dans le core (le paquet « prive » dans une future version composer si je ne m'abuse) : https://git.spip.net/spip/medias/src/branch/master/javascript/gestion_listes_documents.js.html#L17 Je rappelle le principe tout simple : une barre de boutons, un clic sur un bouton ajoute une classe sur un élément cible. Pour l'instant tout est en dur dans le script, l'idée serait donc de rendre ça générique et activable au moyen de quelques attributs data. Çe ferait un petit widget bien pratique (...)
20:22
Evolution #4489 (Nouveau): [API rôles] pouvoir mettre des rôles par défaut vides Revisions : SPIP

Une limitation de l'API actuelle, c'est qu'on ne peut pas avoir un rôle par défaut « vide ». Même si on décide d'utiliser des rôles sur un objet, il peut y avoir des objets liés sans rôle particulier, dont la colonne « role » devrait rester vide. Du coup dans la déclaration, au lieu de faire 'defaut' => '', on est obligé de trouver un rôle qui soit sémantiquement neutre, un nom qui signifie « pas de rôle en particulier ». Par exemple pour le plugin rôles de documents, on a dû mettre « document » comme rôle par défaut, mais c'est un peu capillotracé. Nb : je ne sais plus exactement ce qui se passait quand je (...)
20:06
Evolution #4488 (Nouveau): [API rôles] Des rôles uniques Revisions : SPIP

Il pourrait être intéressant de pouvoir déclarer des rôles à usage unique, c'est à dire des rôles attribuables une seule fois par objet. Si un jour il y a un rôle « logo », il s'agirait d'un rôle unique par exemple. Dans la déclaration des rôles, il pourrait s'agir d'une clé supplémentaire où on donnerait la liste des rôles uniques. Exemple pour un plugin qui ajouterait 3 rôles aux documents : « couverture », « 4ème de couverture» et « extrait ». Il peut y avoir autant d'extraits qu'on veut, mais une seule couverture et une seule 4ème de couverture. (Code édité suite au commentaire #3) 'roles_colonne' => (...)
19:39
Anomalie #4485: Conflit bigup+ espace privé fluide + insérer modèle Revisions : SPIP

Du coup je ne sais pas où on doit faire les PRs suivants pour Bigup. Est-ce qu'on pourrait faire un point sur la migration ? Où cela en est-il, est-ce qu'il y a des choses qui bloquent ? Cf. #4482 ⓐmaieul je pense qu'il faudrait passer ce ticket en priorité haute parceque potentiellement ça impacte tous les contenus qui sont dans les colonnes latérales, pas juste insérer modèles.

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

20:15
avcodec/nvenc: use framerate if available - Zachariah Brown git.videolan.org Git - ffmpeg.git/rss log

avcodec/nvenc: use framerate if available The h264_nvenc and hevc_nvenc encoders aren't respecting the framerate in the codec context. Instead it was using the timebase which in our use-case was 1/1000 so the encoder was behaving as if we wanted 1000fps. This resulted in poor encoding results due to an extremely low bitrate. Both the amf and qsv encoders already contain similar logic to first check the framerate before falling back to the timebase. Signed-off-by: Zachariah Brown <zachariahⓐrenewedvision.com> Signed-off-by: Timo Rothenpieler <timoⓐrothenpieler.org> [DH] (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

21:46
How to Play Smooth 4K Video with FFplay? [closed] - Matan Marciano Newest 'ffmpeg' Questions - Stack Overflow

Im trying to play 4K video with ffplay and the video is not smooth. Video File: Big Buck Bunny, 4K, 60fps, 30Mbps http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_2160p_60fps_stereo_abl.mp4 Hardware: Dell OptiPlex 7070 Micro (8 Cores, 8GB RAM, GPU: Intel Corporation UHD Graphics 630) Samsung U28E590D, 4K Screen DisplayPort to HDMI Cable Software: Ubuntu 19.04 ffplay with libmvx (according this guide: (...) -- http://distribution.bbb3d.renderfarming.net/video/mp4/bbb_sunflower_2160p_60fps_stereo_abl.mp4, https://github.com/Intel-Media-SDK/MediaSDK/wiki/Build-and-use-ffmpeg-with-MediaSDK

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

19:22
hwcontext_vulkan: fix incorrect print argument - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: fix incorrect print argument [DH] libavutil/hwcontext_vulkan.c

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

20:59
mp4 video fragmented using ffmpeg takes long time to start playing - daldoy Newest 'ffmpeg' Questions - Stack Overflow

When using ffmpeg, to stream the output file to S3, it is required to use "-movflags frag_keyframe", and the generated file will be a fragmented mp4. When I try to play this files from S3 it takes a long time to start playing. I have tried the recommended movflags from MDN Docs and all the possible combinations. ffmpeg -i https://notreal-bucket.s3-us-west-1.amazonaws.com/video/video.mp4 -f mp4 -movflags frag_keyframe+empty_moov pipe:1 | aws s3 cp - s3://notreal-bucket/video/output.mp4 Link of the file: (...) -- movflags, MDN Docs, https://happy-testing.s3-eu-west-1.amazonaws.com/stack-overflow/help.mp4
20:49
ffmpeg avcodec_find_encoder null - register all depreciated - Aaron Trotter Newest 'ffmpeg' Questions - Stack Overflow

avcodec_find_encoder(AV_CODEC_ID_H264) is returning null; other answers say to use av_register_all or avcodec_register_all which are both now deprecated. i am using ffmpeg:x64-windows 4.2-8 installed via vcpkg
19:52
ffmpeg: complex concatenation of images and video of possibly different resolutions [duplicate] - HDW Newest 'ffmpeg' Questions - Stack Overflow

As part of my application the user should be able to select a range of images and video, and merge them into a single video. The images are transformed into 5-second long fragments of video. All these can be in different resolutions, and possibly formats as well. I have some of the parts of the process already: Turn image into video with loop 1 -i image.png -r 1 -t 5 imageAsVideo.mp4 Concatenate videos (of possibly different formats): -i movie1.mp4 -i movie2.mp4 -filter_complex "[0:v:0][1:v:0]concat=n=2:v=1:a=1[outv][outa]" -map "[outv]" -map "[outa]" (...)
19:27
how to use ffmpeg to merge WebM audio (Opus) and MP4 video (H.264) into one MP4 file - Franva Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to merge WebM file with Opus audio + MP4 file with H.264 video into a MP4 file: ffmpeg -i audio.webm -i video.mp4 -c copy output.mp4 However, I get an error: [mp4 ⓐ 0x56105a6d0a40] opus in MP4 support is experimental, add '-strict -2' if you want to use it. Could not write header for output file #0 (incorrect codec parameters ?): Experimental feature Complete log: ffmpeg version n4.2.2 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.3.0 (Arch Linux 9.3.0-1) configuration: (...)
18:10
How many ouputs can be supported by ffmpeg simultaneously - Sung Newest 'ffmpeg' Questions - Stack Overflow

I know ffmpeg can create multiple outputs simultaneously with encoding one input source. But anyone know what is the upper limit can it support?
18:02
Extract final frame from a video using ffmpeg - Saavestro Newest 'ffmpeg' Questions - Stack Overflow

I know how to extract the first frame by using ffmpeg -ss 00:00:00 -i input.mp4 -vframes 1 -q:v 31 output.png Here, the option -ss requires to know the exact time of the frame to extract. I would like to have the final frame of any .mp4 without knowing the exact final time of the video. Is there a way to achieve this?
17:28
How to avoid ffmpeg encode Annex-B h264 stream ouput when hardware encoding? - Huang-JiaSheng Newest 'ffmpeg' Questions - Stack Overflow

I use wireshark to analysis the h264 ouput of ffmpeg encoding by "h264_qsv",its very strange which contains a lot of PPS,seems like its Annex-B. And Annex-B cannot decode when playing on some machine. Is there a way to avoid encoding make the h264 stream like Annex-B? pH264Codec = avcodec_find_encoder_by_name("h264_qsv"); enter image description here -- enter image description here
16:06
Extract image of every frame of a video using react-native-ffmpeg - EdG Newest 'ffmpeg' Questions - Stack Overflow

I have looked all over the internet to get a way to extract image of everyframe of a video using react-native-ffmpeg. I am making a mobile app and I want to show all per frame images on the video timeline. I want to do this natively on mobile so that I can utilise hardware power of mobile. That is the reason I am looking for react-native-ffmpeg kind of library. Am I in the right direction? This npmjs.com/package/react-native-ffmpeg is what I am trying to use. I need to know the command to do the job. (...) -- npmjs.com/package/react-native-ffmpeg
15:53
What are good settings for transcoding videos uploaded to my app? - Dmitry Minkovsky Newest 'ffmpeg' Questions - Stack Overflow

I am working on an app that allows users to share videos. The problem is that many videos are very high bitrate. For example, A 4-minute H264 video from an old iPhone is encoded at 1080p and runs ~17,000 kb/s (~500 megabytes). Accepting and distributing such videos at this bitrate/resolution is not practical for a social application. I have been playing with ffmpeg to transcode videos to smaller sizes and higher compression, but have not achieved acceptable results. For example: ffmpeg \\ -i in.mov \\ -vf (...)
15:42
ffmpeg stream recording: Invalid data found when processing input - uncommon_name Newest 'ffmpeg' Questions - Stack Overflow

I am trying to run this command: ffmpeg -re -i "playlist-78293.m3u8" -vcodec libx264 -vprofile baseline -g 30 -acodec aac -strict -2 -loglevel +trace -f flv rtmp://127.0.0.1:1902/live2/78293 I get the Invalid data found when processing input error after running this. This is the output I get in console: ffmpeg version git-2020-05-01-39fb1e9 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 9.3.1 (GCC) 20200328 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv (...)
12:13
how to concentrate two audios in android in my way? - tohid noori Newest 'ffmpeg' Questions - Stack Overflow

hello guys i have selectActivity that u can select the audios after that u can merge them using ffmpeg library but i get error that said "no such file or directory" i thick the paths that use have problem this is my code below u can check it out .Then if u know how to get all music that exist in my storage ,tell me. I use this function below to get all music. private void getMusic() ContentResolver resolver = getContentResolver(); Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; Cursor cursor = resolver.query(uri,null,null,null,null); if(cursor != (...)
11:17
FPS goes down while performing object detection using TensorFlow on multiple threads - Apoorv Mishra Newest 'ffmpeg' Questions - Stack Overflow

I am trying to run object detection on multiple cameras. I am using SSD mobinet v2 frozen graph to perform object detection with TensorFlow and OpenCV. I had implemented threading to invoke the separate thread for separate camera. But doing so I'm getting low FPS with multiple video streams. Note: The model is working fine with single stream. Also when number of detected objects in different frames are low, I'm getting decent FPS. My threading logic is working fine. I guess I'm having issue with using the graph and session. Please let me know what am I (...)
09:35
FFMPEG hardcodes subs in strange/wrong order - AnvarSh1 Newest 'ffmpeg' Questions - Stack Overflow

I need to extract frames with subtitles on it. For that, depending on the situation, I either hardcode the whole video to split it later into frames, I use this to hardcode the whole video: ffmpeg -i ourvid.mp4 -vf "subtitles=ourvid.srt" result.mp4 and then I split the whole thing. The other option is, I just extract the frames I need, like: ffmpeg -i ourvid.mp4 -vf select='between(n\\,x\\,x)',subtitles=ourvid.srt -q:v 2 frames%d.jpg in both cases, a strange behaviour can be observed. Let's say, we have three lines of (...)
09:27
how to create multiple period using ffmpeg, from two input videos to multi period on the DASH mpd - Sunny Newest 'ffmpeg' Questions - Stack Overflow

I wonder how to create multi-periods from two input videos or more using ffmpeg. how do I make a command line for making a DASH mpd to have multiple periods. who does know the way to make the thing? ============== xml representation.. representation..
08:37
How to load a subtitle stream into a video stream for ffmpeg [closed] - pepper Newest 'ffmpeg' Questions - Stack Overflow

Convert speech to text with NLP,but how do I load text into a rtmp live stream as subtitles.
08:56
Python CV2 extract video frames with subtitles - AnvarSh1 Newest 'ffmpeg' Questions - Stack Overflow

I have a video file result.mp4 with subtitles. I want to extract frames, but I want subtitles to be on those frames too, subtitles are in file as a separate track. Currently I use this code to extract: vidcap = cv2.VideoCapture("result.mp4") success,image = vidcap.read() count = 0 while success: cv2.imwrite("frame%d.jpg" % count, image) success,image = vidcap.read() print('Read a new frame: ', success) count += 1 which works fine, but as I said, does not include subtitles on the frames. I am able to extract (...)
04:16
Overlying video frames using FFmpeg in c++ - Bruce Newest 'ffmpeg' Questions - Stack Overflow

I am trying to overlaying two videos using FFmpeg in c++. So I followed the FFmpeg page and followed this command in terminal. $ ffmpeg -i Right.mov -i Left.mov -filter_complex "[0:v][1:v] overlay=0:0" -c:a copy output.mov I can implement this functionality through the terminal, but I am trying to achieve this functionality through codding. typedef struct AVFormatContext *fmt_ctx; int stream_idx; AVRational time_base; AVStream *video_stream; AVCodecContext *codec_ctx; AVCodecContext *pCodecCtxOrig; AVCodec (...) -- https://ffmpeg.org/doxygen/2.1/doc_2examples_2filtering_video_8c-example.html, https://code5.cn/so/c%2B%2B/2601062
03:22
ffmpeg keeping full title when encoding - LordFenixNC Newest 'ffmpeg' Questions - Stack Overflow

I am trying to name the audio and sub files in the batch encode using the title tag in the meta data. the issue im running into is if the title says English Commentary it will only grab English or Jap uncut it will only grab Jap. $audioTracks = ffprobe $f.FullName -show_entries stream=index:stream_tags=title -select_streams a -of compact=p=0:nk=1 $audioTracks = $audioTracks.split("") foreach($audio in $audioTracks) $ID = $audio.split("|")[0]; $audioName = $audio.split("|")[1]; ffmpeg -i $f.FullName -threads 0 -muxdelay 0 -y -map 0:$ID -codec aac -f (...)
02:58
Bot connects to chat but doesn't play audio - Discord.py Rewrite - William Anstey Newest 'ffmpeg' Questions - Stack Overflow

Here is the command It passes no errors but still doesn't play any audio ⓐbot.command(pass_context=True,aliases=["Play,Song"]) async def playSongs(ctx): channel = ctx.message.author.voice.channel if not channel: await ctx.send("You are not connected to a voice channel") return voice = get(bot.voice_clients, guild=ctx.guild) if voice and voice.is_connected(): await voice.move_to(channel) else: voice = await channel.connect() source = FFmpegPCMAudio('song.m4a') player = (...)
02:58
Swift - Workaround/Alternative to M3u8 to play mp4 segment or merge segments into mp4 - STerrier Newest 'ffmpeg' Questions - Stack Overflow

I used AVAssetExportSession to download a session URL but the issue that you can't download live stream so to get around it, the live stream is split into 10 seconds mp4 segments that are downloaded using an m3u8 to create the URLs. I then use AVAssetExportSession to merge those mp4 segments. I can merge those clips one by one into one mp4 file which is what I want but as the file gets bigger, the longer it takes as I am dealing with thousands of segments which becomes unpractical. I thought about using AVplayerLooper but I cannot scrub, rewind or forward through (...)
02:54
FFmpeg - Check if all video files have concatenated correctly into one video - STerrier Newest 'ffmpeg' Questions - Stack Overflow

I am concatenating thousands of .ts files into an mp4 which works great but is there a way to know which files have already been concatenated with FFmpeg? The issue I have is I am concatenating multiple videos back to back and if the app is closed off during the concatenation process. The concatenating of the videos may not be complete. I can check if the files exist but the size of the files could be wrong if not all the clips have been concatenated. Is there a way to know if all the files have been concatenated properly? My current idea is if the app is closed (...) -- https://github.com/tanersener/mobile-ffmpeg, https://trac.ffmpeg.org/wiki/Concatenate
02:39
Creating an animation out of Matplotlib .pngs - Phicalc Newest 'ffmpeg' Questions - Stack Overflow

Hello I just finished to write a code that compute the orbitals of the hydrogen atom. I wrote a for loop to create 300 pictures using the command plt.savefig("imagei.png".format(i=i)) Now I wanted to ask what is the easiest way to create a high quality .mp4 or .gif file out of the pictures using python. I saw several tutorials that didn't helped me because the gif was messed up or the quality was too low. Thank you for your (...)
02:10
How to make a nonstreamable mp4 streamable from a JS browser client? - Daniel Kobe Newest 'ffmpeg' Questions - Stack Overflow

For my service we are sending videos that need processing. Unfortunately some of the videos are non streamable. By that I mean the metadata information is at the end of the file and not the beginning. With ffmpeg you can make a video streamable with this command: ffmpeg -i source.mp4 -a:v copy -a:c copy -movflags faststart output.mp4 Is there anyway I can replicate ffmpegs faststart logic from a JS client? I see that there are libaries like ffmpeg.js but I was hoping to avoid having a huge library in the (...)

Revisions : blueimp/jQuery-File-Upload - GitHub https://github.com/blueimp/jQuery-File-Upload

01:07
10.25.0 - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

10.25.0
01:06
Update optional and dev dependencies. - blueimp Revisions : blueimp/jQuery-File-Upload - GitHub

Update optional and dev dependencies.

13 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

00:06
fftools/ffmpeg: add new abort_on flag which aborts if there is a stream which receive... - Marton Balint git.videolan.org Git - ffmpeg.git/rss log

fftools/ffmpeg: add new abort_on flag which aborts if there is a stream which received no packets Signed-off-by: Marton Balint <cusⓐpasswd.hu> [DH] doc/ffmpeg.texi [DH] fftools/ffmpeg.c [DH] fftools/ffmpeg.h [DH] fftools/ffmpeg_opt.c
17:39
hwcontext_vulkan: expose the enabled device features - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: expose the enabled device features With this, the puzzle of making libplacebo, ffmpeg and any other Vulkan API users interoperable is complete. Users of both libraries can initialize one another's contexts without having to create a new one. [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/hwcontext_vulkan.h
17:20
hwcontext_vulkan: expose the amount of queues for each queue family - Lynne git.videolan.org Git - ffmpeg.git/rss log

hwcontext_vulkan: expose the amount of queues for each queue family This, along with the next patch, are the last missing pieces to being interoperable with libplacebo. [DH] libavutil/hwcontext_vulkan.c [DH] libavutil/hwcontext_vulkan.h
00:11
avcodec/ivi: Clear got_p_frame before decoding a new frame using it - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log

avcodec/ivi: Clear got_p_frame before decoding a new frame using it Fixes: assertion failure Fixes: 21666/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO4_fuzzer-5706468994318336 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/ivi.c
22:42
avcodec/jpeg2000dec: Free packed_headers - Michael Niedermayer git.videolan.org Git - ffmpeg.git/rss log

avcodec/jpeg2000dec: Free packed_headers Fixes: memleak Fixes: 21784/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_JPEG2000_fuzzer-565256551058636 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Gautam Ramakrishnan <gautamramkⓐgmail.com> Signed-off-by: Michael Niedermayer <michaelⓐniedermayer.cc> [DH] libavcodec/jpeg2000dec.c
13:08
libavcodec: aarch64: Add a NEON implementation of pixblockdsp - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

libavcodec: aarch64: Add a NEON implementation of pixblockdsp Cortex A53 A72 A73 get_pixels_c: 140.7 87.7 72.5 get_pixels_neon: 46.0 20.0 19.5 get_pixels_unaligned_c: 140.7 87.7 73.0 get_pixels_unaligned_neon: 49.2 20.2 26.2 diff_pixels_c: 209.7 133.7 138.7 diff_pixels_neon: 54.2 31.7 23.5 diff_pixels_unaligned_c: 209.7 134.2 139.0 diff_pixels_unaligned_neon: 68.0 27.7 41.7 Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] libavcodec/aarch64/Makefile [DH] libavcodec/aarch64/pixblockdsp_init_aarch64.c [DH] libavcodec/aarch64/pixblockdsp_neon.S [DH] libavcodec/pixblockdsp.c [DH] (...)
12:57
libavcodec: arm: Add a NEON implementation of pixblockdsp - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

libavcodec: arm: Add a NEON implementation of pixblockdsp Cortex A7 A8 A9 A53 A72 get_pixels_c: 144.7 146.0 143.0 137.7 69.0 get_pixels_armv6: 112.0 106.7 90.2 95.0 72.5 get_pixels_neon: 69.0 29.7 68.7 40.2 19.0 get_pixels_unaligned_c: 144.7 146.2 143.0 137.7 69.0 get_pixels_unaligned_neon: 77.0 36.5 72.5 48.5 19.0 diff_pixels_c: 376.7 319.7 265.5 307.7 148.0 diff_pixels_armv6: 179.0 159.5 205.5 139.0 142.0 diff_pixels_neon: 69.0 40.2 77.5 53.2 26.0 diff_pixels_unaligned_c: 376.7 319.7 265.5 307.7 148.0 diff_pixels_unaligned_neon: 85.0 54.5 93.5 66.7 26.0 Signed-off-by: Martin Storsjö (...)
12:15
checkasm: pixblockdsp: Add tests for get_pixels_unaligned and diff_pixels_unaligned - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

checkasm: pixblockdsp: Add tests for get_pixels_unaligned and diff_pixels_unaligned Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/pixblockdsp.c
20:09
checkasm: arm: Check for stack overflows - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

checkasm: arm: Check for stack overflows Figure out the number of stack parameters and make sure that the value on the stack after those is untouched. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/arm/checkasm.S [DH] tests/checkasm/checkasm.h
13:11
checkasm: aarch64: Check for stack overflows - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

checkasm: aarch64: Check for stack overflows Also fill x8-x17 with garbage before calling the function. Figure out the number of stack parameters and make sure that the value on the stack after those is untouched. Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/aarch64/checkasm.S [DH] tests/checkasm/checkasm.h
17:02
checkasm: add hscale test - Josh de Kock git.videolan.org Git - ffmpeg.git/rss log

checkasm: add hscale test This tests the hscale 8bpp to 14/18bpp functions with different filter sizes. Signed-off-by: Josh de Kock <joshⓐitanimul.li> [DH] tests/checkasm/Makefile [DH] tests/checkasm/checkasm.c [DH] tests/checkasm/checkasm.h [DH] tests/checkasm/sw_scale.c [DH] tests/fate/checkasm.mak

Revisions : SPIP http://core.spip.org/projects/spip/activity

11:14
Révision 124666: Retour sur la gestion des pour ameliorer le support et la migration : ce n... - cerdic - Revisions : SPIP

on generalise le mecanisme en renommant le filtre en medias_trouver_modele_emb qui prend en 3eme argument la racine du modele cherche, et si aucun modele specifique n'utilise pour l'extention ou le mime type on revient sur le modele racine initial De cette façon les plugins peuvent proposer des modeles emb specifiques pour tout type de media (cf oembed). Par defaut seule le modele file propose des declinaisons historiques pour text/html et text/csv
17:41
Anomalie #4487: BUG sur filtres_images > image_recadre_mini - b b Revisions : SPIP

Le bon projet :)
17:33
Anomalie #4487 (Nouveau): BUG sur filtres_images > image_recadre_mini - Pat V Revisions : SPIP

Procédure : function image_recadre_mini($im) Fichier : image_transforme.php Plugin_dist : filtres_images Bug : la fonction ne recadrait pas le bas de l'image. Proposition : Après examen du code, il me semble bien qu'une boucle est mal formée. Avec les nouvelles modifications proposées, tout semble fonctionner. A tester tous les cas ceci dit après relecture. Merci à vous. Code initial : // Ligne 446 : while ($yy $max_y) for ($xx = 0; $xx Code corrigé : // Ligne 446 : while ($yy / $max_y = max($yy, $max_y); break; if ($height - 1 - $yy > $max_y) for ($xx = 0; $xx $min_y = (...)

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

23:19
Record audio inside docker container from Ubuntu host - abhinavkulkarni Newest 'ffmpeg' Questions - Stack Overflow

I have a basic Dockerfile as follows: FROM ubuntu:16.04 RUN apt-get update \\ && apt-get install -y pulseaudio alsa-utils alsa-base ffmpeg On my host, I am able to record an audio file as follows: ffmpeg -f pulse -i default -f wav out.wav I would like to do the same inside the docker container. How do I go about this? Thanks!

Revisions : jQuery validator http://github.com/jzaefferer/jquery-validation

22:47
Core: Fixes deprecated calls to jQuery trim (#2328) - brighton1101 Revisions : jQuery validator

Core: Fixes deprecated calls to jQuery trim (#2328) Fixes #2327 Co-authored-by: Brighton Balfrey

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

22:13
How to server video from FFMPEG in Python/Flask? - Jelling Newest 'ffmpeg' Questions - Stack Overflow

How does one stream the bytes returned by FFMPEG out via HTTP using Flask? I have googled extensively and just cannot seem to find a working example. Here's how I'm loading my video file using ffmpeg-python; this works. foo, _ = ( ffmpeg .input('./example.mp4') .output('pipe:', format='rawvideo', pix_fmt='rgb24') # .output('pipe:', vframes=1, format='image2', vcodec='mjpeg') .run(capture_stdout=True) ) And my best guess at outputting the video (...)
21:13
converter.ConverterError: Source file doesn't exist - Emin Baybars Timur Newest 'ffmpeg' Questions - Stack Overflow

I am a newbie of using PyCharm and I am trying to convert an AVI file an MP4 file. I have a code like this. from converter import Converter conv = Converter() info = conv.probe(r'C:\\Users\\bayba\\anaconda3\\Lib\\site-packages\\converter\\MVI_0117_normal_meannorm.avi') convert = conv.convert('MVI_0117_normal_meannorm.avi', 'normalvideo.mp4', 'format': 'mp4', 'audio': 'codec': 'aac', 'samplerate': 11025, 'channels': 2 (...)
21:02
Output file names with spaces to file without quotes in batch - user245115 Newest 'ffmpeg' Questions - Stack Overflow

So, I wrote a script as a batch file that uses FFmpeg to "concat" several video files on my hard drive. The script is as follows. ⓐecho off title Printing video info... (for %%i in ( "%USERPROFILE%"/Dropbox/Video1.MKV "%USERPROFILE%"/Dropbox/Video2.MKV S:/Exports/Video3.MKV ../../video/Video4.mkv ) do ( if exist "%%i" echo file '%%i' )) > "%~n0.txt" type "%~n0.txt" title Copying to compiled video... "C:\\Program Files\\ffmpeg\\bin\\ffmpeg.exe" -hide_banner -f concat^ -safe 0 -y -i "%~n0.txt" -c copy "%~n0.mkv" (...)
20:30
Where to find sample audio files of various formats? - Kathy.Pu Newest 'ffmpeg' Questions - Stack Overflow

I am programming to decode different format audio based on ffmpeg, like mp3, aac and so on. Where can I find different format audio to use as a testset?
20:14
Output file names with spaces to file without quotes in bash - user245115 Newest 'ffmpeg' Questions - Stack Overflow

So, I wrote a script as a batch file that uses FFmpeg to "concat" several video files on my hard drive. The script is as follows. ⓐecho off title Printing video info... (for %%i in ( "%USERPROFILE%"/Dropbox/Video1.MKV "%USERPROFILE%"/Dropbox/Video2.MKV S:/Exports/Video3.MKV ../../video/Video4.mkv ) do ( if exist "%%i" echo file '%%i' )) > "%~n0.txt" type "%~n0.txt" title Copying to compiled video... "C:\\Program Files\\ffmpeg\\bin\\ffmpeg.exe" -hide_banner -f concat^ -safe 0 -y -i "%~n0.txt" -c copy "%~n0.mkv" (...)
19:35
FFMPEG command for multiple files for specific preset on mp4 [duplicate] - Johny Stefan Newest 'ffmpeg' Questions - Stack Overflow

This is the preset: ffmpeg -i Myfile.mp4 -map 0 -codec:v libx264 -acodec copy Myfileoutput.mp4 All my files are mp4, i will just convert them to x264 to save space in my hdd. anyone know how do it? Edit: i'm on windows 10
18:17
FFmpeg loglevel with level prefix - Matan Marciano Newest 'ffmpeg' Questions - Stack Overflow

I want to add level prefix to ffmpeg logs. Im using ffmpeg -loglevel level+info -i input And it is working as well in my Mac (ios) but is not working in my Ubuntu 18 with ffmpeg version 3.4.6-0ubuntu0.18.04.1 When I am running it in my Ubuntu I got: Invalid loglevel "level+info". Possible levels are numbers or: "quite" "panic" ... ... ... "trace" Please advise
18:12
HTML5 / and live transcoding with FFMPEG - TooTallNate Newest 'ffmpeg' Questions - Stack Overflow

So from my web server, I would like to use FFMPEG to transcode a media file for use with an HTML or tag. Easy enough right? The conversion would need to take place in real-time, when an HTTP client requested the converted file. Ideally the file would be streamed back to the HTTP client as it is being transcoded (and not afterwards at the end, since that would potentially take a while before any data starts being sent back). This would be fine, except that in today's browsers, an HTML5 audio or video tag requests the media file in multiple HTTP requests with the (...)
17:47
Why does it say error finding module when I already installed it - MiqhtieLol Newest 'ffmpeg' Questions - Stack Overflow

I am trying to code a discord music bot and this is my code: const config = require('config.json') const Discord = require('discord.js'); const ffmpeg = require('ffmpeg-extra') const client = new Discord.Client(); client.once('ready', () => console.log('Ready!'); ); client.on('message', message => if(message.content.toLocaleLowerCase() === "elevator") if(message.member.voice.channel) message.channel.send("Thanks to https://www.bensound.com for supplying us with this (...)
17:18
How can I use ffmpeg and PySceneDetect in pycharm to segment different scenes in a video - Runzhe Newest 'ffmpeg' Questions - Stack Overflow

I had a problem with a video that had multiple scenes. Following the PySceneDetect tutorial, I know how to detect different scenes on the command line and split the video, such as "scenedetect - I goldeneye.mp4 -o output_dir detect-content -t 27 list-scenes save-images split-video".But I wanted to program a lot of these videos in Pycharm, because it would be slow if every video was on the command line. Therefore, I tried to find the corresponding operation in the SceneDetect Module, but I found that there was no relevant tutorial in the "Video Splitting" section, and the previous (...)
17:15
Exoplayer FFMPEG issue. Video froze on the first frame after adding Exoplayer FFMPEG extension - Aravind Newest 'ffmpeg' Questions - Stack Overflow

I am working on adding Exoplayer and it works fine. But some of the videos were playing without audio, it plays fine in VLC medial player. So I was suggested to add Exoplayer FFMPEG. I added Exoplayer FFMPEG extension and I modified the code as below, val videoTrackSelectionFactory: TrackSelection.Factory = AdaptiveTrackSelection.Factory(BANDWIDTH_METER) val trackSelector: TrackSelector = DefaultTrackSelector(videoTrackSelectionFactory) val renderersFactory: RenderersFactory = DefaultRenderersFactory(mContext, null, EXTENSION_RENDERER_MODE_PREFER) mPlayer = (...) --
16:31
how to use FFMpeg to merge webm audio and mp4 video into one mp4 file - Franva Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to merge a webm format audio + mp4 video into a mp4 video file: ffmpeg -i hellsAngelsAudio.webm -i hellsAngels.mp4 -c copy hellsAngel480p.mp4 I also tried this: ffmpeg -i hellsAngelsAudio.webm -i hellsAngels.mp4 -acodec copy -vcodec copy hellsAngel480p.mp4 However the error is the same. --
16:22
converting from h265 to h264 10bit created audio quality issues - dasMetzger Newest 'ffmpeg' Questions - Stack Overflow

The following code was saved as a batch file and run locally in a folder that had a season worth of files that i needed converted to H.264. for %%a in ("*.*") do ffmpeg -i "%%a" -c:v libx264 -preset slow -crf 20 -c:a aac -b:a 128k "newfiles\\%%~na.mp4" pause Input Video Codec: MPEG-H Part2/HEVC (H.265) (hevc) Input Audio Codec: MPEG AAC Audio (mp4a) Sample rate: 48000 Hz Bits per sample: 32 Video quality was what I expected but the audio quality declined to a tinny echo-like quality. I'm thinking my problem might be with the "-b:a (...)
14:47
Decoding and resampling audio with FFmpeg for output with libao - DoctorSelar Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to write a program to read and play an audio file using FFmpeg and libao. I've been following the procedure outlined in the FFmpeg documentation for decoding audio using the new avcodec_send_packet and avcodec_receive_frame functions, but the examples I've been able to find are few and far between (the ones in the FFmpeg documentation either don't use libavformat or use the deprecated avcodec_decode_audio4). I've based a lot of my program off of the transcode_aac.c example (up to init_resampler) in the FFmpeg documentation, but that also uses the (...) -- FFmpeg documentation, transcode_aac.c
14:37
How can I convert .MTS file (AVCHD) to .mp4 by ffmpeg without re-encoding H264 video stream correctly? - kaorukobo Newest 'ffmpeg' Questions - Stack Overflow

I posted an same question to another community Video Production that I've found later, and which seems to be a better place for this question: See: https://video.stackexchange.com/questions/12156/how-can-i-convert-mts-file-avchd-to-mp4-by-ffmpeg-without-re-encoding-h264-v/ 1. What I tried I have some .MTS (AVCHD format) files recoreded with my AVCHD camera. Its specification is as shown below: $ ffprobe 140612_Canon-00000.MTS ffprobe version 2.2.1 Copyright (c) 2007-2014 the FFmpeg developers (snip) Input #0, (...)
13:52
No Backend error despite of downloading ffmpeg and setting path variable python - Dipshi jain Newest 'ffmpeg' Questions - Stack Overflow

I am having a no backend error in my python code to open an audio file using librosa module. I have downloaded ffmpeg and seted environment but still I am getting no backend error. I am getting this error with .mp3 extension, with wav it is working properly . import librosa as lib t,s_r=lib.load(r"C:\\songs\\03-BuddhuSaMann-DownloadMing.SE.mp3") This is the error I am getting: UserWarning: PySoundFile failed. Trying audioread instead. warnings.warn('PySoundFile failed. Trying audioread instead.') RuntimeError: Error opening (...)
13:31
How do I cut black frames from video with ffmpeg? - h0dges Newest 'ffmpeg' Questions - Stack Overflow

I've got a timelapse video with overnight frames that are not illuminated and would like to know how to either: Cut the black frames (pblack=99) out of the video AND correspondingly reduce the length of the output video (i.e. not duplicate or interpolate frames) Analyse the input images before generating the timelapse video in order to exclude the overnight images from the video. Just to be awkward I'd like to use the jrottenberg/ffmpeg docker image. This is the command I'm currently using to generate the timelapse (...)
12:52
Import png files and convert to animation(.mp4) in R - Arthur Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to create a short animation with several png files in R. I tried package magick but it only works when I save them to .gif. When I tried to save as .mp4, it will generate an .mp4 file but once you open it, only the first image will be shown. My code is library(magick) productPath I found there is also a package called animation, but I don't really know how to import png files with that package. Any solutions? With either package should be fine. Thank (...)

Revisions : saisies http://zone.spip.org/trac/spip-zone/log/_plugins_/saisies

11:14
Revision 124668: Merge branch 'saisies_heritage.yaml' Close #8 - Maïeul Rouquette Revisions : saisies

Merge branch 'saisies_heritage.yaml' Close #8 -- Log
11:14
Revision 124667: Nouvelle option pour la description .yaml d'une saisie : hériter d'une ... - Maïeul Rouquette Revisions : saisies

Nouvelle option pour la description .yaml d'une saisie : hériter d'une autre saisie. Possibilité d'avoir des héritages en cascade. Possibilité de régler précisement les options héritées ou pas, via des entrées dans le .yaml. Pour la documentation, voir https://contrib.spip.net/ecrire/?exec=article&id_article=5272 Pour des exemples : - dans ce dossier, les tests (tests/saisies + tests/saisies_heriter) - la saisie nombre : https://git.spip.net/spip-contrib-extensions/saisie_nombre - la saisie calcul : https://git.spip.net/spip-contrib-extensions/saisie_calcul En bonus : - Ajout d'une fonction (...) -- Log
11:14
Revision 124670: Tag '/tags/v3.38.0' created from /trunk:124668 - Maïeul Rouquette Revisions : saisies

Tag '/tags/v3.38.0' created from /trunk:124668 -- Log
11:14
Revision 124669: Branch '/branches/saisies_heritage.yaml' deleted - Maïeul Rouquette Revisions : saisies

Branch '/branches/saisies_heritage.yaml' deleted -- Log

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

11:13
ffmpeg how to put color overlay over video - flieks Newest 'ffmpeg' Questions - Stack Overflow

I want to put a color overlay (blue, red or green or hex value) over a video giving it a Instagram filter like effect. I think it should be in the lines of: ffmpeg -i video.mp4 -i "red.png" -filter_complex "blend=all_mode='screen':all_opacity=0.7" output.mp4 or maybe with all_mode=overlay But I get an error: First input link top parameters (SAR 0:1) do not match the corresponding second input link bottom parameters (SAR 1:1). I also tried with lutrgb=r=1.5, but that didn't give it a red color (it takes the (...)
11:38
Using ffmpeg to cut audio from/to position - Mike Newest 'ffmpeg' Questions - Stack Overflow

I need to cut parts from an audio file from position to position. When I tried this command ffmpeg -ss 132 -t 139 -i original.mp3 new.mp3 it started at the second 132, and added the next 139 seconds to the new file. What I need is from second 132 to second 139. And when I tried ffmpeg -ss 132 -to 139 -i original.mp3 new.mp3 it gives me an error: Unrecognized option 'to' Failed to set value '139' for option 'to' (I don't want to tell how many seconds to take, (...)
11:36
FFmpeg merge two files from different sources with different bitrates - FamousWolluf Newest 'ffmpeg' Questions - Stack Overflow

I have created an intro video with Adobe Premiere Pro and I want to add the intro video to my downloaded Mixer stream videos before uploading them to YouTube, without reencoding the complete video through Adobe Premiere because that takes a long time because the videos are more then an hour. I tried it with FFmpeg ffmpeg -safe 0 -f concat -i list.txt -c copy output.mp4. The intro is normal but the video part from Mixer is running way to fast. I think it has something todo with the bitrate but I can't figure it out. Output of intro file: (...)
12:45
ffmpeg:Unable to broadcast to live stream from webcam - gbenga ogunbule Newest 'ffmpeg' Questions - Stack Overflow

I have this code that I believe should be able to grab from webcam and broadcast a live stream i.e. Users will be able to watch or stream live what there admin is doing at that moment in time. I have this code for it C:\\Apache24\\htdocs\\video\\assets\\ffmpeg\\bin>ffmpeg -f dshow -i video="HP Webcam" -c:v libx264 -preset ultrafast -tune zerolatency -r 10 -async 1 -c:a libmp3lame -b:a 24k -ar 22050 -bsf:v h264_mp4toannexb -maxrate 750k -bufsize 3000k -f mpegt s C:\\Apache24\\htdocs\\video\\assets\\uploads\\videos\\en.mp4 Also notice I use the (...)
10:41
where to find audio of differnt format - Kathy.Pu Newest 'ffmpeg' Questions - Stack Overflow

I am programming to decode different format audio based on ffmpeg, like mp3, aac and so on. Where can I find different format audio to use as a testset? Thank you very much.
08:34
Play video using FFmpeg library in androidNDK - manikanta veeravalli Newest 'ffmpeg' Questions - Stack Overflow

I have all required .so libraries and header files to play a video. I want to play video from the Raw folder. I am struck at CPP code. Unable to pass a video file path to CPP code. The following is my native-lib.cpp code const char *file = env->GetStringUTFChars(path, 0); if (file == NULL) printf("The file is a null object."); av_register_all(); int ret = 0; char errbuf[256]; AVFormatContext *fmt_ctx = avformat_alloc_context(); int ret12 = avformat_open_input(&fmt_ctx, file, NULL, NULL); if (ret12 The above ret12 (...)
08:28
How to convert y4m file to yuv? [closed] - roberutsu Newest 'ffmpeg' Questions - Stack Overflow

I searched the internet and Stack Overflow, but I could not find an answer: Does anyone know how to convert a y4m file to yuv?
04:31
What makes the bitrate of dash stream output low as compared to bitrate of input mp4 video - Chinmaey Shende Newest 'ffmpeg' Questions - Stack Overflow

I used ffmpeg to convert bbb.mp4 to dash stream. I used the ffprobe to get the bitrates of input and output (shown below) For the same resolution video 1920x1080 input has bit rate 2998 kb/s where as output has bitate of 20 kb/s. My profile is set to "-b:v:0 200K -s:v:0 640x360 -b:v:1 600K -s:v:1 852x480 -b:v:2 4000K -s:v:2 1920x1080". I am trying to understand what determines the output bit rate for the dash stream? Why does my output different from the input profile set in ffmpeg command Input video stream - bbb.mp4 ''' Duration: (...)
04:13
How to block other IP to use my rtmp-ffmpeg restreamed links? - lare77 Newest 'ffmpeg' Questions - Stack Overflow

I restream the streams with rtmp-ffmpeg technique, in etc/nginx/sites-available i allow my domains to show my stream just like so: server listen 80; #root /var/www/html/; #index index.php index.html index.htm; server_name example.com; location / proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $remote_addr; proxy_set_header X-Forwarded-Proto $scheme; proxy_set_header Host $host; proxy_pass http://127.0.0.1:8080; location ~ /\\.ht deny (...)
02:55
FFMpeg not installing due to vscode problem - MiqhtieLol Newest 'ffmpeg' Questions - Stack Overflow

I am trying to code a discord music bot for a private server and when I try to install FFmpeg (npm install discord.js ffmpeg fluent-ffmpeg ⓐdiscordjs/opus ytdl-core --save) it gives me a big error and I think the part that matters is this: You need to install the latest version of Visual Studio gyp ERR! find VS including the "Desktop development with C++" workload. gyp ERR! find VS For more information consult the documentation at: gyp ERR! find VS (...)
01:50
I want to implement picture-in-picture function with ffmpeg, can anyone help me? - Shenlei Shen Newest 'ffmpeg' Questions - Stack Overflow

in ffmpeg command, it's very simple: ffmpeg.exe -i input.mp4 -i timer.mp4 -filter_complex "[1:v]crop=w=160:h=110:x=650:y=300[timer4.mp4]; [timer4.mp4]scale=30:30[timer-30m30.mp4]; [0][timer-30m30.mp4]overlay=W-w:10" output-video-overlay.mp4 but now I need to implement with the ffmpeg api, I have searched all day, but still not found any useful impormation, can any one help me? thank you very much.

12 May

git.videolan.org Git - ffmpeg.git/rss log http://git.videolan.org/?p=ffmpeg.git;a=summary

14:50
checkasm: arm: Don't use blx to call checkasm_fail_func - Martin Storsjö git.videolan.org Git - ffmpeg.git/rss log

checkasm: arm: Don't use blx to call checkasm_fail_func We should just use a normal bl here, and the linker will add the 'x' bit if necessary. This fixes calling the checkasm_fail_func on windows, where the code is built in thumb mode (and the linker doesn't clear the 'x' bit in the blx instruction). Signed-off-by: Martin Storsjö <martinⓐmartin.st> [DH] tests/checkasm/arm/checkasm.S

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