16 avril

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

• 03:23
  ffmpeg Loop the short video so it can match the duration of the a long audio - andrew cummins Newest 'ffmpeg' Questions - Stack Overflow
  I have a list of mp4 files and mp3 files in a directory. I need the following loop the short mp4 so it can match the duration of the mp3 file export mp4 file with new audio. But we want the mp4 in portrait mode. ffmpeg -stream_loop -1 -i video.mp4 -i audio.mp3 -map 0:v -map 1:a -preset slow -shortest -movflags +faststart output.mp4 I have this code in ffmpeg, but i would need to have output in portrait mode. the code works, but the issue is having the video output in portrait mode without stretching the (...)
• 04:19
  AVFilterGraph cancel initiating - KaisoHHH Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use AVFilterGraph to filter render AVFrames from AVStream directly, but I'm facing a situation I might need to cancel the initiating since I may change the filter complex string frequently in a short time as the front end will change fast to adjust the filter complex string. And the init may take long because of my filter string includes some customized parts. I also thought about just async create other filter graph if I cannot just cancel the initiating process in avfilter_graph_parse_ptr. But I'm hesitant about memory leak it may cause. Wondering if (...)

15 avril

Piwik http://piwik.org/

• 00:11
  Clickstream Data: Definition, Use Cases, and More - Erin Piwik
  Gaining a deeper understanding of user behaviour — customers’ different paths, digital footprints, and engagement patterns — is crucial for providing a personalised experience and making informed marketing decisions. In that sense, clickstream data, or a comprehensive record of a user’s online activities, is one of the most valuable sources of actionable insights into users’ behavioural patterns. This article will cover everything marketing teams need to know about clickstream data, from the basic definition and examples to benefits, use cases, and best practices. What is clickstream data? (...) -- terms and conditions, data processing agreement (DPA)

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

• 22:15
  scalable looping slideshow ffmpeg command - Martin Newest 'ffmpeg' Questions - Stack Overflow
  I have the below ffmpeg command which takes a 2 hour mp3 file and four image files and combines them to renders a single mkv video file where the 4 images appear in a slideshow where each image is displayed for an equal amount of time. I am using these files: https://file.io/XjYl2DDrLn6b Since the video is 2 hours long ( 7200 seconds ) and there are 4 images, each image gets displayed for 7200/4 = 1800 seconds. The logic for determining how to loop these image files is within the 'filter_complex' part of my ffmpeg command. [0:a]concat=n=1:v=0:a=1[a]; Use the (...) -- https://file.io/XjYl2DDrLn6b
• 19:28
  ffmpeg output with label 'v' does not exist in any defined filtler graph - David Royale Newest 'ffmpeg' Questions - Stack Overflow
  Been trying to make this Python code work but it fails up until rendering the final part: import subprocess import re import os def detect_idle_sections(video_path): command = ['ffmpeg', '-i', video_path, '-vf', 'select=\\'gt(scene,0.1)\\'', '-vsync', 'vfr', '-f', 'null', '-'] output = subprocess.check_output(command, stderr=subprocess.STDOUT).decode('utf-8') idle_sections = [] duration = 0.0 for line in (...)
• 18:07
  FMP4 moof box sequence number ordering - Daniel Newest 'ffmpeg' Questions - Stack Overflow
  I wanted to do a basic fragmented mp4 broadcast program with avformat libs and HTML5 video and MSE. This is a live stream and I use avformat to copy h264 data to mp4 fragments. Here is my basic drawing of clients attaching to the stream: So, with words: C1J: First Client joins: avformat process starts ftyp, moov, moof, mdat boxes will be served to Client1 ftyp and moov atoms are both saved for later reuse C2J: Second Client joins (later in time): avformat process is ongoing (because it is (...) --
• 16:12
  dockerized python application takes a long time to trim a video with ffmpeg - Ukpa Uchechi Newest 'ffmpeg' Questions - Stack Overflow
  The project trims YouTube videos. When I ran the ffmpeg command on the terminal, it didn't take too long to respond. The code below returns the trimmed video to the front end but it takes too long to respond. A 10 mins trim length takes about 5mins to respond. I am missing something, but I can't pinpoint the issue. backend main.py import os from flask import Flask, request, send_file from flask_cors import CORS, cross_origin app = Flask(__name__) cors = CORS(app) current_directory = os.getcwd() folder_name = (...)
• 12:31
  FFmpeg C++ API : Using HW acceleration (VAAPI) to transcode video coming from a webcam [closed] - nicoh Newest 'ffmpeg' Questions - Stack Overflow
  I'm actually trying to use HW acceleration with the FFmpeg C++ API in order to transcode the video coming from a webcam (which may vary from one config to another) into a given output format (i.e: converting the video stream coming from the webcam in MJPEG to H264 so that it can be written into a MP4 file). I already succeeded to achieve this by transferring the AVFrame output by the HW decoder from GPU to CPU, then transfer this to the HW encoder input (so from CPU to GPU). This is not so optimized and on top of that, for the given above config (MJPEG => H264), I (...) -- https://github.com/FFmpeg/FFmpeg/blob/master/doc/examples/vaapi_transcode.c
• 11:39
  "fmpeg" has no attribute "input" - Robin Singh Newest 'ffmpeg' Questions - Stack Overflow
  I had previously built this youtube downloader but when I tested it recently; it stopped working. from pytube import YouTube import ffmpeg import os raw = 'C:\\ProgramData\\ytChache' path1 = 'C:\\ProgramData\\ytChache\\Video\\\\' path2 = 'C:\\ProgramData\\ytChache\\Audio\\\\' file_type = "mp4" if os.path.exists(path1 and path2): boo = True else: boo = False while boo: url = str(input("Link : ")) choice = int(input('Enter 1 for Only Audio and Enter 2 For Both Audio and Video \\n: (...)
• 11:02
  Using FFMPEG and PHP to encode HLS video on the fly - mrsmith Newest 'ffmpeg' Questions - Stack Overflow
  I'm re-encoding a MP4 video to HLS using FFMPEG with PHP. I'm trying to then directly serve to the output to a HTML page's tag. The following script (encode.php) encodes the video as I require and it works if I use the script url directly in VLC player for example but I'm struggling to get the gtml page to play it. The resulting video file should be compatible with most browsers. I use video.src = 'encode.php' on my player html page. Any help appreciated. <?php $input_video = 'whatever.mp4'; // video passthrough // (...)
• 10:35
  frame extracted from a video using opencv or ffmpeg is vague, picture i snip from video is clear - user11317826 Newest 'ffmpeg' Questions - Stack Overflow
  I record a video from roadside, and I want to recognize plate license in video. but I find that if I extract every frame from video using python, the frame is too vague to recognize. I have tried opencv and ffmpeg -i input.mp4 -ss 00:00:10.000 -vframes 1 output.png ` but if I snip video every second the picture is clear what's the reason of this phenomenon, how can I fix it I have tried frame average, it didn't (...)
• 10:05
  FFmpeg dynamic cropping using sendcmd correct syntax? - Sulli Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to dynamically crop a video using FFmpeg's sendcmd filter based on coordinates specified in a text file, but the crop commands do not seem to be taking effect. Here's the format of the commands I've tried and the corresponding FFmpeg command I'm using. Following the documentation https://ffmpeg.org/ffmpeg-filters.html#sendcmd_002c-asendcmd, commands in the text file (coordinates.txt) like this: 0.05 [enter] crop w=607:h=1080:x=0:y=0; 0.11 [enter] crop w=607:h=1080:x=0:y=0; ... Ffmpeg command: ffmpeg -i '10s.mp4' (...) -- https://ffmpeg.org/ffmpeg-filters.html#sendcmd_002c-asendcmd
• 09:29
  Make a video 10h long while keeping it lightweight in filesize - keanu_reeves Newest 'ffmpeg' Questions - Stack Overflow
  I created an mp4 file with no sound that is 0:17 minutes long. I also have this mp3 file that is 3mins long. I'd like to make a 10h video with those two, while keeping the filesize small. (8-15mb). Is there a way to achieve that with ffmpeg?
• 09:28
  the problem using "yt-dlp --download-sections" [closed] - talent Newest 'ffmpeg' Questions - Stack Overflow
  I tried to use "yt-dlp --download-sections" to download specific segment of YouTube video. But I have confronted some error. If I use the cammand as followed, it will be ok, and download the whole video successfully. yt-dlp -P [path] [URL] But, if I add the "--download-sections" to download specific segment, it seems something wrong. the command is as followed. yt-dlp -P [path] --download-sections "*00:08:06-00:08:17" https://www.youtube.com/watch?v=6Vkmb4cUuLs the eccor message Plus, the operation system is Windows. And I have used (...) -- the eccor message, ffmpeg configuration
• 08:57
  Multiple named pipes in ffmpeg - Toto Briac Newest 'ffmpeg' Questions - Stack Overflow
  This question is the follow-up of this question In my application I want to modify various mp3 and then mix them together. I know I could do it with a single command line in FFmpeg but it can end up very messy since I need to use various filter on each sample and I have five of them. My idea is to edit each sample individually, save them into a pipe and finally mix them. import subprocess import os def create_pipes(): os.mkfifo("pipe1") os.mkfifo("pipe2") def create_samp(): sample= subprocess.run(["ffmpeg", "-i", (...)
• 08:00
  Swift A script of macOS is not running on the M2 chip? - Muhammad Danish Qureshi Newest 'ffmpeg' Questions - Stack Overflow
  I am making a macOS app using SwiftUI, app is working fine on mac Intel chip, mac Apple M1 chip but not working on the mac M2 chip. Below is the following code which is crashing on M2 chip for force unwrapping the data in String(data: data!, encoding: .utf8). I know that force unwrap is not suitable, but for testing purpose I am doing force unwrap. When I run the which ffmpeg in terminal it provides the path in result, no matter which mac terminal is (it always return actual path of ffmpeg), but when run this command from the swift Program it does not found anything and got (...) -- , ,
• 07:40
  Joining realtime raw PCM streams with ffmpeg and streaming them back out - Nathan Ladwig Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use ffmpeg to join two PCM streams. I have it sorta kinda working but it's not working great. I am using Python to receive two streams from two computers running Scream Audio Driver ( ttps://github.com/duncanthrax/scream ) I am taking them in over UDP and writing them to pipes. The pipes are being received by ffmpeg and mixed, it's writing the mixed stream to another pipe. I'm reading that back in Python and sending it to the target receiver. My ffmpeg command is ['ffmpeg', '-use_wallclock_as_timestamps', (...)
• 07:15
  ffmpeg produces duplicate pts with "wallclock_as_timestamps 1" option on MKV - Jax2171 Newest 'ffmpeg' Questions - Stack Overflow
  I need to get real time reference of every keyframe captured by an IP camera. The -wallclock_as_timestamps 1 option seems to do the trick for us, however we are forced to replace the TS output container with MKV to get a correct PTS epoch value 1712996356.833000. Here is the ffmpeg command used: ffmpeg -report -use_wallclock_as_timestamps 1 -rtsp_transport tcp -i rtsp://user:password1ⓐ192.168.5.21/cam/realmonitor?channel=1channel1[1]=1subtype=0 -c:v copy -c:a aac -copyts -f matroska -y rec.mkv The capture process runs without any relevant worning or error messages.  (...)
• 06:00
  FFMPEG vsync drop and regeneration - Lhh92 Newest 'ffmpeg' Questions - Stack Overflow
  According to the ffmpeg documentation vsync parameter Video sync method. For compatibility reasons old values can be specified as numbers. Newly added values will have to be specified as strings always. drop As passthrough but destroys all timestamps, making the muxer generate fresh timestamps based on frame-rate. It appears that the mpegts mux does not regenerate the timestamps correctly (PTS/DTS); however, piping the output after vsync drop to a second process as raw h264 does force mpegts to regenerate the PTS. Generate test (...)
• 00:43
  FFmpeg player backporting to Android 2.1 - one more problem - tretdm Newest 'ffmpeg' Questions - Stack Overflow
  I looked for a lot of information about how to build and use FFmpeg in early versions of Android, looked at the source codes of players from 2011-2014 and was able to easily build FFmpeg 4.0.4 and 3.1.4 on the NDKv5 platform. I have highlighted the main things for this purpose: and before Android 2.2 (API Level 8) such a thing did not exist this requires some effort to implement buffer management for A/V streams, since in practice, when playing video, the application silently crashed after a few seconds due to overflow (below code example in C++ and (...) -- not officially included in Android 2.1 and above, my written build script

14 avril

Piwik http://piwik.org/

• 23:24
  A Beginner’s Guide to Omnichannel Analytics - Erin Piwik
  Linear customer journeys are as obsolete as dial-up internet and floppy disks. As a marketing manager, you know better than anyone that customers interact with your brand hundreds of times across dozens of channels before purchasing. That can make tracking them a nightmare unless you build an omnichannel analytics solution. Alas, if only it were that simple. Unfortunately, it’s not enough to collect data on your customers’ complex journeys just by buying an omnichannel platform. You need to generate actionable insights by using marketing attribution to tie channels to conversions. This (...) -- terms and conditions, data processing agreement (DPA)

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

• 12:11
  vulkan_av1: add workaround for NVIDIA drivers tested on broken CTS - Lynne git.videolan.org Git - ffmpeg.git/rss log
  vulkan_av1: add workaround for NVIDIA drivers tested on broken CTS The first release of the CTS for AV1 decoding had incorrect offsets for the OrderHints values. The CTS will be fixed, and eventually, the drivers will be updated to the proper spec-conforming behaviour, but we still need to add a workaround as this will take months. Only NVIDIA use these values at all, so limit the workaround to only NVIDIA. Also, other vendors don't tend to provide accurate CTS information. [DH] libavcodec/vulkan_av1.c [DH] libavcodec/vulkan_decode.c [DH] (...)

ginger’s thoughts http://blog.gingertech.net/

• 21:47
  SWAY at RFWS using Coviu - silvia ginger’s thoughts
  A SWAY session by Joanne of Royal Far West School. http://sway.org.au/ via https://coviu.com/ SWAY is an oral language and literacy program based on Aboriginal knowledge, culture and stories. It has been developed by Educators, Aboriginal Education Officers and Speech Pathologists at the Royal Far West School in Manly, NSW. Category: Array Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post SWAY at RFWS using Coviu first appeared on ginger's thoughts.
• 21:47
  PARADISEC catalog for Users - silvia ginger’s thoughts
  This screencast shows how a user of the PARADISEC catalog logs in and explores the collections, items and files that the archive contains. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Users first appeared on ginger's thoughts.
• 21:47
  PARADISEC catalog for Collectors - silvia ginger’s thoughts
  Screencast of how to use the PARADISEC catalog for managing and publishing collections. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Collectors first appeared on ginger's thoughts.
• 21:47
  PARADISEC catalog for Administrators - silvia ginger’s thoughts
  Screencast of how a PARADISEC administrator uses the PARADISEC catalog for managing the consistency of metadata and staying on top of uploaded files. Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post PARADISEC catalog for Administrators first appeared on ginger's thoughts.
• 21:47
  Silvia Pfeiffer Live Stream - silvia ginger’s thoughts
  Category: 2 Uploaded by: Silvia Pfeiffer Hosted: youtubeThe post Silvia Pfeiffer Live Stream first appeared on ginger's thoughts.

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

• 18:39
  Script doesnt recognize bars / length right for cutting audio , ffmpeg terminal - totzillarbeats Newest 'ffmpeg' Questions - Stack Overflow
  This terminal script doesn't recognize bars / length right for cutting audio, maybe somebody knows what's wrong with the calculation ... Would be happy about any help the cutting already works! #!/bin/bash # Function to extract BPM from filename get_bpm() local filename="$1" local bpm=$(echo "$filename" | grep -oE '[0-9]1,3' | head -n1) echo "$bpm" # Function to cut audio based on BPM cut_audio() local input_file="$1" local bpm="$2" local output_file="$input_file%.*_cut.$input_file##*." # (...)
• 15:01
  Cannot get ffmpeg to work after installing from homebrew - phizzy Newest 'ffmpeg' Questions - Stack Overflow
  I installed ffmpeg through homebrew but when I try to run it, even just typing in ffmpeg I get the following error message: dyld: Library not loaded: /usr/local/lib/liblzma.5.dylib Referenced from: /usr/local/bin/ffmpeg Reason: Incompatible library version: ffmpeg requires version 8.0.0 or later, but liblzma.5.dylib provides version 6.0.0 Trace/BPT trap: 5 I've tried running brew update and brew upgrade but that didn't change anything. Running brew doctor the only error I get is: Warning: You have a curlrc file If you have (...)
• 14:18
  script doesnt recognize bars / lenght right for cutting audio , ffmpeg terminal - totzillarbeats Newest 'ffmpeg' Questions - Stack Overflow
  This Terminal script doesnt recognize bars / lenght right for cutting audio , maybe somebody knows whats wrong with the calculation :) Would be happy about any help the cutting already works ! #!/bin/bash # Function to extract BPM from filename get_bpm() local filename="$1" local bpm=$(echo "$filename" | grep -oE '[0-9]1,3' | head -n1) echo "$bpm" # Function to cut audio based on BPM cut_audio() local input_file="$1" local bpm="$2" local output_file="$input_file%.*_cut.$input_file##*." # Appends "_cut" (...)
• 12:13
  ffmpeg failed to load audio file - Vaishnav Ghenge Newest 'ffmpeg' Questions - Stack Overflow
  Failed to load audio: ffmpeg version 5.1.4-0+deb12u1 Copyright (c) Failed to load audio: ffmpeg version 5.1.4-0+deb12u1 Copyright (c) 2000-2023 the FFmpeg developers built with gcc 12 (Debian 12.2.0-14) configuration: --prefix=/usr --extra-version=0+deb12u1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d (...)
• 09:23
  webrtc to rtmp send video from camera to rtmp link - Leo-Mahendra Newest 'ffmpeg' Questions - Stack Overflow
  i cant send the video from webrtc which is converted to bufferd data for every 10seconds and send to server.js where it takes it via websockets and convert it to flv format using ffmpeg. i am trying to send it to rtmp server named restreamer for start, here i tried to convert the buffer data and send it to rtmp link using ffmpeg commands, where i initially started to suceesfully save the file from webrtc to mp4 format for a duration of 2-3 minute. after i tried to use webrtc to send video data for every 10 seconds and in server i tried to send it to rtmp but i cant send it, but (...)
• 02:43
  Why do my Windows filenames keep getting converted in FFMPEG? - GeneralTully Newest 'ffmpeg' Questions - Stack Overflow
  I'm running a script that walks through a large library of .flac music, making a mirror library with the same structure but converted to .opus. I'm doing this on Windows 11, so I believe the source filenames are all in UTF-16. The script calls FFMPEG to do the converting. For some reason, uncommon characters keep getting converted to different but similar characters when the script runs, for example: 06 xXXi_wud_nvrstøp_ÜXXx.flac gets converted to: 06 xXXi_wud_nvrstøp_ÜXXx.opus They look almost identical, but the Ü and I believe (...)

13 avril

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

• 10:55
  lavc/vvc: Increase size of ctb_size_y - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Increase size of ctb_size_y sps_log2_ctu_size_minus5 is between 0 and 2, with 3 reserved for future use. The VVC decoder allows sps_log2_ctu_size_minus5 to be 3, and so ctb_size_y should be at least 16 bits to prevent overflows. An alternative patch would leave sps_log2_ctu_size_minus5 as 8 bits and disallow sps_log2_ctu_size_minus5 = 3. Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/ps.h

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

• 04:22
  Same FFmpeg command produces different Matroska MKV output file checksum [closed] - finefoot Newest 'ffmpeg' Questions - Stack Overflow
  The following exemplary FFmpeg command takes an MP4 file, doesn't do any re-encoding, but simply writes the output to an MKV file: ffmpeg -i input.mp4 -c copy output.mkv If I run the same command twice, with two different output files: ffmpeg -i input.mp4 -c copy output1.mkv ffmpeg -i input.mp4 -c copy output2.mkv The resulting files will have differing checksums: aa46d308197cb08d71f271c61d5412ad output1.mkv 8b48c3ebdbf2384705fcb78e864d12e3 output2.mkv This difference disappears if I convert them back to an MP4 container: ffmpeg (...)

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

• 19:06
  lavc/vulkan_av1: Use av1dec reference order hint information - Mark Thompson git.videolan.org Git - ffmpeg.git/rss log
  lavc/vulkan_av1: Use av1dec reference order hint information [DH] libavcodec/vulkan_av1.c
• 19:05
  lavc/av1: Record reference ordering information for each frame - Mark Thompson git.videolan.org Git - ffmpeg.git/rss log
  lavc/av1: Record reference ordering information for each frame This is needed by Vulkan. Constructing this can't be delegated to CBS because packets might contain multiple frames (when non-shown frames are present) but we need separate snapshots immediately before each frame for the decoder. [DH] libavcodec/av1dec.c [DH] libavcodec/av1dec.h

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

• 12:28
  Extracting frames from a video does not work correctly [closed] - Al Tilmidh Newest 'ffmpeg' Questions - Stack Overflow
  Using the libraries (libav) and (ffmpeg), I try to extract frames as .jpg files from a video.mp4, the problem is that my program crashes when I use the CV_8UC3 parameter, but by changing this parameter to CV_8UC1, the extracted images end up without color (grayscale), I don't really know what I missed, here is a minimal code to reproduce the two situations: #include extern "C" #include #include int main() AVFormatContext *formatContext = nullptr; if (avformat_open_input(&formatContext, "video.mp4", nullptr, nullptr) (...)
• 18:52
  Why do my Windows filenames keep getting converted in Python? - GeneralTully Newest 'ffmpeg' Questions - Stack Overflow
  I'm running a script that walks through a large library of .flac music, making a mirror library with the same structure but converted to .opus. I'm doing this on Windows 11, so I believe the source filenames are all in UTF-16. The script calls FFMPEG to do the converting. For some reason, uncommon characters keep getting converted to different but similar characters when the script runs, for example: 06 xXXi_wud_nvrstøp_ÜXXx.flac gets converted to: 06 xXXi_wud_nvrstøp_ÜXXx.opus They look almost identical, but the Ü and I believe also the (...)
• 17:10
  conversion from YUV to RGB color - Prashant Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert FFMPEG's Intensity color map from yuv format to rgb. It should give you colors as shown in the color bar in the image. You can generate a spectrogram using command: ffmpeg -i words.wav -lavfi showspectrumpic=s=224x224:mode=separate:color=intensity spectrogram.png Here is the code: import numpy as np def rgb_from_yuv(Y, U, V): Y -= 16 U -= 128 V -= 128 R = 1.164 * Y + 1.596 * V G = 1.164 * Y - 0.392 * U - 0.813 * V B = 1.164 * Y + 2.017 * U # Clip and normalize RGB (...) -- FFMPEG's Intensity,
• 16:13
  ffmpeg merge multiple audio files with offset and duration into a single video file [closed] - CLIFFORD P Y Newest 'ffmpeg' Questions - Stack Overflow
  Trying to merge two audio files into a single video at specific offset and duration What I tried checked previous stack overflow questions and answers, no one matched my requirements, below is the command i tried ffmpeg -i 5a54b260-f8a0-11ee-99e0-2d7afd1305f3.mp4 \\ -i 62d24fb0-f8a0-11ee-99e0-2d7afd1305f3.wav \\ -i 76cf3190-f8a0-11ee-99e0-2d7afd1305f3.wav \\ -filter_complex "[1:a]adelay=0|0,atrim=0:18[a1trimmed]; \\ [2:a]adelay=20000|20000,atrim=0:10[a2trimmed];\\ [a1trimmed][a2trimmed]amix=inputs=2[aout]" \\ -map 0:v -map "[aout]" -c:v copy -c:a aac (...)

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

• 15:21
  avcodec/h2645_sei: validate Mastering Display Colour Volume SEI values - Kacper Michajłow git.videolan.org Git - ffmpeg.git/rss log
  avcodec/h2645_sei: validate Mastering Display Colour Volume SEI values As we can read in ST 2086: Values outside the specified ranges of luminance and chromaticity values are not reserved by SMPTE, and can be used for purposes outside the scope of this standard. This is further acknowledged by ITU-T H.264 and ITU-T H.265. Which says that values out of range are unknown or unspecified or specified by other means not specified in this Specification. Signed-off-by: Kacper Michajłow <kasper93ⓐgmail.com> Signed-off-by: Niklas Haas <gitⓐhaasn.dev> [DH] (...)

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

• 09:53
  ffmpeg produce pts duplicati con "wallclock_as_timestamps 1" on MKV - Jax2171 Newest 'ffmpeg' Questions - Stack Overflow
  I need to get real time reference of every keyframe captured by an IP camera. The -wallclock_as_timestamps 1 option seems to do the trick for us, however we are forced to replace the TS output container with MKV to get a correct PTS epoch value 1712996356.833000. Here is the ffmpeg command used: ffmpeg -use_wallclock_as_timestamps 1 -rtsp_transport tcp -i rtsp://admin:adminⓐ192.168.1.5/h264/ch1/main/av_stream -c:v copy -c:a aac -copyts -f matroska -y rec.mkv The capture process runs without any relevant worning or error messages. However, playing the captured video (...)
• 06:40
  FFMPEG not turning a series of .ppm files into a video - Radiation Sky Playz Newest 'ffmpeg' Questions - Stack Overflow
  I don't have much of an idea of what i'm doing. also i don't use stackoverflow so i still don't know what i'm doing xd I'm trying to do this: ffmpeg -framerate 45 -i screen_200x200_%d.ppm -c:v libx264 -r 30 -pix_fmt yuv420p output52234.mp4 and it's making this appear: jajooⓐjajoospc:~/Documents/fff$ ffmpeg -framerate 45 -i screen_200x200_%d.ppm -c:v libx264 -r 30 -pix_fmt yuv420p output52234.mp4 ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the FFmpeg developers built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)  (...)
• 03:25
  FFmpeg RTSP drop rate increases when frame rate is reduced - Avishka Perera Newest 'ffmpeg' Questions - Stack Overflow
  I need to read an RTSP stream, process the images individually in Python, and then write the images back to an RTSP stream. As the RTSP server, I am using Mediamtx [1]. For streaming, I am using FFmpeg [2]. I have the following code that works perfectly fine. For simplification purposes, I am streaming three generated images. import time import numpy as np import subprocess width, height = 640, 480 fps = 25 rtsp_server_address = f"rtsp://localhost:8554/mystream" ffmpeg_cmd = [ "ffmpeg", "-re", "-f", "rawvideo",  (...) -- https://github.com/bluenviron/mediamtx, https://github.com/FFmpeg/FFmpeg, https://github.com/bluenviron/mediamtx?tab=readme-ov-file#opencv

12 avril

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

• 09:19
  avfilter/af_channelsplit: fix memory leak - LuMingYin git.videolan.org Git - ffmpeg.git/rss log
  avfilter/af_channelsplit: fix memory leak Signed-off-by: LuMingYin <lumingyindetectⓐ163.com> Signed-off-by: Zhao Zhili <zhilizhaoⓐtencent.com> [DH] libavfilter/af_channelsplit.c

Piwik http://piwik.org/

• 03:59
  7 Ecommerce Metrics to Track and Improve in 2024 - Erin Piwik
  You can invest hours into market research, create the best ads you’ve ever seen and fine-tune your budgets. But the only way to really know if your digital marketing campaigns move the needle is to track ecommerce metrics. It’s time to put your hopes and gut feelings aside and focus on the data. Ecommerce metrics are key performance indicators that can tell you a lot about the performance of a single campaign, a traffic source or your entire marketing efforts. That’s why it’s essential to understand what ecommerce metrics are, key metrics to track and how to improve them. Ready to do all of (...) -- terms and conditions, data processing agreement (DPA)

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

• 22:10
  doc/muxers.texi: Don't use confusing variable name - Andreas Rheinhardt git.videolan.org Git - ffmpeg.git/rss log
  doc/muxers.texi: Don't use confusing variable name reserve_index_space is a size, not an index. Also refer to the variable in the description. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardtⓐoutlook.com> [DH] doc/muxers.texi

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

• 20:40
  How do I upscale an iOS App Preview video to 1080 x 1920? [closed] - Benjamin Thiel Newest 'ffmpeg' Questions - Stack Overflow
  I just captured a video of my new app running on an iPhone 6 using QuickTime Player and a Lightning cable. Afterwards I created an App Preview project in iMovie, exported it and could successfully upload it to iTunes Connect. Apple requires developers to upload App Previews in different resolutions dependent on screen size, namely: iPhone 5(S): 1080 x 1920 or 640 x 1136 iPhone 6: 750 x 1334 (what I have) iPhone 6+: 1080 x 1920 Obviously, 1080 x 1920 is killing two birds with one stone. I know that upscaling isn't the perfect (...)

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

• 20:08
  avcodec/nvenc: Multi NVENC Split Frame Encoding in HEVC and AV1 - Diego Felix de Souza git.videolan.org Git - ffmpeg.git/rss log
  avcodec/nvenc: Multi NVENC Split Frame Encoding in HEVC and AV1 When Split frame encoding is enabled, each input frame is partitioned into horizontal strips which are encoded independently and simultaneously by separate NVENCs, usually resulting in increased encoding speed compared to single NVENC encoding. Signed-off-by: Diego Felix de Souza <ddesouzaⓐnvidia.com> Signed-off-by: Timo Rothenpieler <timoⓐrothenpieler.org> [DH] libavcodec/nvenc.c [DH] libavcodec/nvenc.h [DH] libavcodec/nvenc_av1.c [DH] libavcodec/nvenc_hevc.c [DH] (...)

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

• 21:55
  How to get the buffer of the first frame of a video using ffmpeg? (Node.js) - Mahmoud Walid Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use child_processes and ffmpeg to do this, but it returns this error: FFmpeg stderr: [AVFilterGraph ⓐ 00000157fd55abc0] No option name near 'eq(n, 0)"' [AVFilterGraph ⓐ 00000157fd55abc0] Error parsing a filter description around: [AVFilterGraph ⓐ 00000157fd55abc0] Error parsing filterchain '"select=eq(n\\, 0)"' around: [vost#0:0/libx264 ⓐ 00000157fd574700] Error initializing a simple filtergraph Error opening output file pipe:1. Error opening output files: Invalid argument FFmpeg process exited with code: (...)
• 17:01
  how to record screen of windows using ffmpeg inside WSL [closed] - Santhosh Newest 'ffmpeg' Questions - Stack Overflow
  I have WSL2 and ubuntu installed inside it. I have ffmpeg command line installed inside it. Now I am not sure how to record the screen. Can someone help me what command options to be used to record screen (including windows UI) I tried the below command. Opened powershell in windows, then entered into wsl and then ran the below command ffmpeg -f x11grab -y -framerate 30 -s 1920x1080 -i :0.0 -c:v libx264 -preset superfast -crf 18 out.mp4 but it results in blank screen (...)
• 14:24
  Segmentation fault caused by FFMPEG / SFML on Macos - Med ali Damergi ReTr0 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to code a basic video player function to use it in a game it's supposed to get a sfml window and a video link as inputs and run the video: extern "C" #include #include #include #include #include #include const AVCodec* pCodec = nullptr; void lecteurVideo(const std::string& videoPath, sf::RenderWindow& window) // Open the video file AVFormatContext* pFormatCtx = avformat_alloc_context(); if (avformat_open_input(&pFormatCtx, videoPath.c_str(), nullptr, nullptr) != 0)  (...)
• 15:38
  Streaming audio over websockets and process it with ffmpeg, Invalid frame size error - Nimrod Sadeh Newest 'ffmpeg' Questions - Stack Overflow
  I am building an application in Python that processes audio data on a streaming connection with WebSockets. To work with it, I need to process it with ffmpeg on the server before passing it to some ML algorithms. I have the following ffmpeg code setup to process each byte sequence that comes over WebSockets: async def ffmpeg_read(bpayload: bytes, sampling_rate: int = 16000) -> np.array: ar = f"sampling_rate" ac = "1" format_for_conversion = "f32le" ffmpeg_command = [ "ffmpeg", "-i", "pipe:0", "-ac", ac, "-acodec", (...)
• 15:01
  FFMPEG Partial Audio Filter of Video File - Cole Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to apply an audio filter to a section of the audio track on a video file. Here are some details. "video.mp4" is 1 minute and 36 seconds long. I want to lower the pitch of the first 30 seconds of the file. The video track does not need any change, so I can copy that and only transcode the audio. Note, I will have to do this same operation to other videos, with the pitch change at different times. This one is at the beginning, however. I have used this post for inspiration: (...)
• 16:10
  Ffmpeg compilation fails due to undefined symbol _x264_encoder_open_112 for architecture x86_64 - S B Newest 'ffmpeg' Questions - Stack Overflow
  I am compiling ffmpeg on Snow Leopard from source. Using Macport is not an option since I have some custom modification in ffmpeg. The make commands are: $ ./configure --enable-gpl --enable-libmp3lame --enable-static \\ --disable-shared --enable-libx264 --enable-pthreads \\ --disable-doc --enable-avfilter $ make The error: CC ffplay.o ffplay.c: In function ‘SDL_main’: ffplay.c:3157: warning: assignment discards qualifiers from pointer target type LD ffplay_g Undefined symbols for architecture x86_64: "_x264_encoder_open_112", (...)
• 13:37
  Vulkan image data to AVFrames and to video - W4zab1 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to encode Vulkan image data into video with MPEG4 format. For some reason the output videofile is corrupted. FFProbe shows discontinuity in timestamps, and the frames are corrupted. First I prepare my video encoder Then I get FrameEnded events from my engine where I can get the image data from the vulkan swapchain. I then convert the image data from vulkan to AVFrames (RGBA to YUV420P), then I pass the frames into queue. This queue is then handled in another thread, where the frames are processed, and written into video. I am bit of a noob with ffmpeg, (...)
• 10:44
  Error: Output format mp4 is not available - alpaca pwaa Newest 'ffmpeg' Questions - Stack Overflow
  I'm using fluent-ffmpeg in my nextjs application, I'm trying to process the video and specified a format to stream on my s3 bucket but it keeps on failing. My terminal keeps on throwing "Error: Error: Output format mp4 is not available". I already verify my ffmpeg format "ffmpeg -format" and confirm that it supports encoding and decoding mp4 files. I've already tried solutions from other forums but it's not working for me. createVideo: privateProcedure .input( z.object( fileId: z.string(), ) ) .mutation(async ( ctx, input ) =>  (...)
• 09:42
  how to build the binaries in ffmpeg-kit - Harpreet Singh.8052 Newest 'ffmpeg' Questions - Stack Overflow
  hey I want to use the ffmpeg in my android app and I used the ffmpeg-kit In the README of the ffmpeg-kit for android they write the steps to create binary but I'm facing difficulty understanding thest steps First is -> to setup android SDK or NDK i have checked these in my Android studio and I also added these in my environment variables Second -> is to install different packages autoconf automake libtool pkg-config curl git doxygen nasm cmake gcc gperf texinfo yasm bison autogen wget autopoint meson ninja ragel groff gtk-doc-tools libtasn1 im using windows (...) -- ffmpeg-kit, here
• 07:37
  Save incoming frames from camera to video using ffmpeg - Liza Yemini Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to record frames that I read from an industrial camera (such as - https://en.ids-imaging.com/store/u3-3680xle.html) in my C# code as bitmaps. I want to convert those bitmaps to video on the fly. My solution until now was -> Sending those bitmaps to a virtual camera (e2e soft vcam) and then record the camera with ffmpeg - using this command: -f dshow -i video=VCam -r 18 -vcodec libx264 Video.mp4 This is not working so well, because there are drop frames and the video is not smooth. There is another way to use ffmpeg for converting those images to (...) -- https://en.ids-imaging.com/store/u3-3680xle.html
• 07:57
  Decode MP3, then increase the audio volume, and then encode the new audio - Blue Sky Newest 'ffmpeg' Questions - Stack Overflow
  I want to first decode a MP3 audio file, and then increase the volume of the audio, and then encode it again into a new MP3 file. I want to use libavformat or libavcodec for this. Can you help me how I can do this? Any example?
• 03:36
  Converting Multiple Videos from S3 into GIFs with Random Frames using Python and Lambda - rahulfaujdar Newest 'ffmpeg' Questions - Stack Overflow
  I have a collection of videos stored in an S3 bucket, and I'm looking to automate the process of converting these videos into GIFs using Python and Lambda. Each resulting GIF should be precisely 10 seconds long and should contain random frames sampled from different parts of the corresponding video. By random frames, I mean frames from the beginning, middle, and end of each video, creating a dynamic GIF experience. I've started implementing this functionality using ffmpeg within a Python Lambda function, but I'm encountering difficulties in achieving the desired (...)

11 avril

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

• 13:19
  Cannot change AVOutputFormat.flags and AVInputFormat.flags with appropriate ones [closed] - peko geshkov Newest 'ffmpeg' Questions - Stack Overflow
  This is fragment from my working code using to grab livestream from source url and transmux it. ..... ifmt_ctx=avformat_alloc_context();//init input AVFormatContext ..... ifmt_ctx->flags|=AVFMT_FLAG_NONBLOCK|AVFMT_FLAG_GENPTS|AVFMT_FLAG_DISCARD_CORRUPT;//set some flags .... ifmt_ctx->iformat->flags |= AVFMT_TS_DISCONT;//set other flags to AVInputFormat .... ofmt_ctx=avformat_alloc_context();//init output AVFormatContext .... ofmt_ctx->flags|= AVFMT_FLAG_GENPTS|AVFMT_FLAG_NONBLOCK|AVFMT_FLAG_DISCARD_CORRUPT;//set some (...)
• 03:16
  ffmpeg can NOT decode the mp4 file, which only have one IDR frame, Why? [closed] - user21201490 Newest 'ffmpeg' Questions - Stack Overflow
  I have a mp4 file, which have only one IDR frame, ffplay can NOT play it, ffprobe can NOT extract video frame, and ffmpeg can NOT decode it, why? I use ffmpeg7.0 to try, but it always fail. Is it ffmpeg bug and how to render the IDR frame?
• 20:55
  Capture rtsp stream to MP4 file with wallclock timestamp preserve moov atom - Jax2171 Newest 'ffmpeg' Questions - Stack Overflow
  We are looking for the right ffmpeg options to capture the rtsp stream from an IP camera using the real time in epoch from the wall clock as a timestamps reference. Our current command is as follows: ffmpeg -use_wallclock_as_timestamps 1 -rtsp_transport tcp -i rtsp://admin:adminⓐ192.168.5.21/h264/ch1/main/av_stream -c:v copy -c:a aac -copyts -f mp4 -y record.mp4 The command works perfectly well except that, if for any reason the ffmpeg process were to stop abruptly, the output file "record.mp4" is unreadable with error: moov atom not found We simulated (...)
• 18:29
  How the ffmpeg is fixing Handle page termination with same page number ...? [closed] - adarsh Newest 'ffmpeg' Questions - Stack Overflow
  Im working on the teletext subtitle feature and faced with subs not clearing issue. the subtitle lines remain displayed until being replaced by a new version of the specific line. So the subtitles never disappear and often an old line is still displayed, after another, more recent line is displayed/updated. take a look at the issue in this sample video file: https://code.videolan.org/videolan/vlc/uploads/58c2e1660e94e2df5e8cdb75edf531d9/GODFATHER__03_.ts Issue reported : https://sourceforge.net/p/zapping/bugs/203/ The player is using ffmpeg and libzvbi library. At (...) -- https://code.videolan.org/videolan/vlc/uploads/58c2e1660e94e2df5e8cdb75edf531d9/GODFATHER__03_.ts, https://sourceforge.net/p/zapping/bugs/203/, https://github.com/FFmpeg/FFmpeg/commit/b1e0e216462a989a39e7b413aef6d32f8cedc154, https://github.com/zapping-vbi/zvbi/commit/40a6ab0200c46b67b059b5b1fb15793ce780892a

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

• 15:32
  avutil/frame: free the old side data buffer before replacing it - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avutil/frame: free the old side data buffer before replacing it Fixes memleaks reported by ASAN/Valgrind. Reported-by: Sean McGovern <gseanmcgⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavutil/frame.c
• 14:43
  avutil/version: bump minor after recent AVFrame API additions - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avutil/version: bump minor after recent AVFrame API additions Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] doc/APIchanges [DH] libavutil/version.h

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

• 12:07
  Emulate YUV420 stream for OpenCV - Ivan Newest 'ffmpeg' Questions - Stack Overflow
  I'm working on a project that will treat the images coming from a camera in YUV420 format connected by ethernet. During the development, we can't have constant access to the camera so I wanted to emulate the behaviour. My idea is to take video, convert it from mp4 to yuv using ffmpeg: ffmpeg -i input.mp4 -pix_fmt yuv420p output.yuv Then, stream the video in an infinite loop. This works: ffmpeg -stream_loop -1 -f rawvideo -s 960x540 -r 30 -pix_fmt yuv420p -i output.yuv -f mpegts udp://127.0.0.1:23000 I managed to read (and show) the (...)
• 10:58
  Python FFmpeg Video Streaming: how to capture multiple representations (resolutions) with webcam - LUKA TADIĆ Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to capture webcam stream and make HLS stream. I managed to create HLS stream for one Representation (only one stream resolution) but when I try to create (hls.output) more than one, I get this error: C:\\Users\\ltadic\\Desktop\\hls stream>C:/Users/ltadic/AppData/Local/Programs/Python/Python311/python.exe "c:/Users/ltadic/Desktop/hls stream/camera_stream.py" ERROR:root:ffmpeg failed to execute command: b"ffmpeg version 2022-12-11-git-c3e20f78b0-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers\\r\\n built with gcc 12.1.0 (Rev2, Built by MSYS2 project)\\r\\n (...)
• 07:58
  statistics.getTime() returns always total time of input file in milli seconds during the process in android - Hamza Newest 'ffmpeg' Questions - Stack Overflow
  In 6.0-2 android how can i get the percentage because statistics.getTime() returns always total time of input file in milli seconds during the process but it was working proper in previous version 4.4.LTS because in that version it was returning the time based on how much process has complete. Current behavior It is returning total time of input file every time. Here is the link of my test application https://github.com/HamzaBula/Reverse-Video-Demo [Here is the screenshot for 4.4.LTS (frame and time both are perfect here)] (https://i.stack.imgur.com/OEZED.png)  (...) -- https://github.com/HamzaBula/Reverse-Video-Demo, https://i.stack.imgur.com/OEZED.png, Here is the screenshot for 6.0-2 (frame is perfect but time is not)

10 avril

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

• 18:40
  gstreamer cant demux a .ts video but ffmpeg can. How can I fix the error? - Zack Newest 'ffmpeg' Questions - Stack Overflow
  I have a .ts video that when I run through a basic gstreamer pipeline I get an error that it can't demux the video. comand: gst-launch-1.0 filesrc location="/videos/my_video.ts" ! tsdemux ! meta/x-klv ! fakesink I get the error: Setting pipeline to PAUSED ... Pipeline is PREROLLING ... WARNING: from element /GstPipeline:pipeline0/GstTSDemux:tsdemux0: Delayed linking failed. Additional debug info: gst/parse/grammar.y(853): gst_parse_no_more_pads (): /GstPipeline:pipeline0/GstTSDemux:tsdemux0: failed delayed linking some pad of GstTSDemux (...)
• 16:02
  FFMPEG command to write RTSP stream to file and make first frame screenshot - mao Newest 'ffmpeg' Questions - Stack Overflow
  I'm writing RTSP-stream from IP-camera to HLS file with ffmpeg. Also I'm trying to make the first frame that comes when ffmpeg connects to camera written into separate PNG-file. I've found this command to achieve that: ffmpeg -rtsp_transport tcp -i rtsp://stream-url -an -hls_flags append_list -f hls -hls_playlist_type event -hls_list_size 0 -hls_segment_type mpegts -hls_segment_filename ./stream/%d.ts ./stream/index.m3u8 -frames:v 1 ./stream/thumbnail.png This command works well on Windows, writing HLS segments to stream folder and creating thumbnail.png (...)
• 14:35
  Assign PTS to packet based on position in stream - user1055947 Newest 'ffmpeg' Questions - Stack Overflow
  I have a TS with a video and metadata stream. The video has correctly set PTS values, while the metadata does not (ffprobe gives N/A for each). However, the metadata packets are positioned correctly in the stream. Is there a way I can assign the metadata packets a PTS based on their position in the stream. The exact precision is not important, as long as the PTS is somewhere in between the last and next video frame. As a last resort I will have to write some C code to do it, but I wanted to see if the ffmpeg frontend can do it. I need to do this because I need to offset one (...)
• 14:04
  How to create video by stitching together images (.png) where the serial on each image file increases by 6 - DataStatsExplorer Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to create a video (preferably mp4) from a series of png images. However, the name of each image file increases by 6 every frame. For example, I would have depthframe_0000 as the first frame, and depthframe_0001 for the next frame. There are a few answers that have answered a similar question but I am unable to process the video when the image files are not increasing by 1. I would like to keep the fps at 5. I am using ffmpeg as the suggested in the answers above but am open to any other suggestion. The collab code that I have put together is as (...)

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

• 13:17
  Revert "bsf: use standard include paths" - Anton Khirnov git.videolan.org Git - ffmpeg.git/rss log
  Revert "bsf: use standard include paths" This reverts commit 41b73ae883ec2a70c814e394de0e5ae5f1f13e87. This patch was pushed extremely quickly, without giving developers the time to object. [DH] libavcodec/bsf/Makefile [DH] libavcodec/bsf/aac_adtstoasc.c [DH] libavcodec/bsf/av1_frame_merge.c [DH] libavcodec/bsf/av1_frame_split.c [DH] libavcodec/bsf/av1_metadata.c [DH] libavcodec/bsf/chomp.c [DH] libavcodec/bsf/dca_core.c [DH] libavcodec/bsf/dts2pts.c [DH] libavcodec/bsf/dump_extradata.c [DH] libavcodec/bsf/dv_error_marker.c [DH] libavcodec/bsf/eac3_core.c [DH] (...)

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

• 12:56
  ffmpeg doesn't generate a ISO/IEC 14496-17 (MPEG-4 text) track when ingesting WebVTT subtitles to produce MPEGTS - Daniel Andres Pelaez Lopez Newest 'ffmpeg' Questions - Stack Overflow
  We are trying to create a mpegts with an ISO/IEC 14496-17 (MPEG-4 text) subtitles track, using WebVTT, but seems like ffmpeg creates a ISO 13818-1 PES private data instead. The following is the ffmpeg command: ffmpeg -i subtitle.vtt -c:s mov_text -f mpegts output3GPP.ts This is using the following subtitle.vtt file: WEBVTT 00:00.000 --> 00:01.000 Subtitle 1 00:01.000 --> 00:02.000 Subtitle 2 00:02.000 --> 00:03.000 Subtitle 3 00:03.000 --> 00:04.000 Subtitle 4 And the following is the output of the ffprobe (...)
• 12:38
  How to save fluent-ffmpeg output to URL? - volume one Newest 'ffmpeg' Questions - Stack Overflow
  I am using fluent-ffmpeg to process videos and I want to save the final output file to a remote URL, not on the local server. Here is the code: ffmpeg('/path/to/file.mp4') .videoCodec(VideoCodec) .audioCodec(AudioCodec) .format('mp4') .output('http://localhost:8080/output.mp4') // This does not work at all .output('output.mp4') // this works but saves file locally which I'm not allowed to do .run(); How can I save the file directly to a remote location (that is, without saving it locally)? I (...) -- fluent-ffmpeg
• 11:53
  Separating audio m4b file based on a cue file - Rick T Newest 'ffmpeg' Questions - Stack Overflow
  Separating audio m4b file based on a cue file How can I split an audio m4b into separate files using a cue file? Note: The m4b file has no chapters that's why I need to use the cue file to split it. I did try AI but that didn't work. ffmpeg -i test.m4b -f segment -segment_times test.cue -c copy output_%02d.m4a I get errors. Invalid time duration specification 'test.cue' in times list test.cue Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument The thing is I can load the cue (...)
• 09:22
  How to encode from image to mp4 file use GPU? - user24185484 Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to convert images folder to mp4 via FFmpeg AutoGen https://github.com/Ruslan-B/FFmpeg.AutoGen. I use the demo of FFmpeg.AutoGen.Example It is good for me but this is use CPU to encode.This is FFmpeg.AutoGen demo: private static unsafe void EncodeImagesToH264() var frameFiles = Directory.GetFiles("./frames", "frame.*.jpg").OrderBy(x => x).ToArray(); using var fistFrameImage = ReadFrame(frameFiles.First()); var outputFileName = "frames/out.h264"; var fps = 25; var sourceSize = new Size(fistFrameImage.Width, (...) -- https://github.com/Ruslan-B/FFmpeg.AutoGen
• 08:25
  FFmpeg - Streaming from a rtsp server to a rtmp server - loosing packages - Ovidiu I. Newest 'ffmpeg' Questions - Stack Overflow
  I'm trying to stream a video from a rtsp server to a rtmp one using FFmpeg. Tried multiple arguments for my command : ffmpeg.exe -re -i "rtsp://10.65.28.251:11442/video/live" -pix_fmt yuv420p -codec:v libx264 -tune animation -preset fast -crf 23 -maxrate 4M -bufsize 8M -f flv "rtmp://10.65.58.21:1935/rec/XB" ffmpeg.exe -re -i "rtsp://10.65.28.251:11442/video/live" -preset ultrafast -vcodec libx264 -tune zerolatency -b 900k -f flv "rtmp://10.65.52.131:1935/rec/XB I'm loosing a lot of packages as seen in the picture. I'm pretty new to FFmpeg so (...) --
• 03:56
  Java Process start a subprocess and the main process cannot be terminated [closed] - Dodge_X Newest 'ffmpeg' Questions - Stack Overflow
  I use java Process to run a script, the main process of the script start a subprocess, and the subprocess hanging, so I could not monitor if the script is closed. Process process = processBuilder.command(commands).start(); try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()))) String line; while ((line = reader.readLine()) != null) log.info("win exec get msg:", line); // cannot be finished here int exitCode = process.waitFor(); log.info("script exited with code: " + (...) --
• 00:56
  ffprobe vs C api ffmpeg gives different results on mp3 without id3 tag - Spider Newest 'ffmpeg' Questions - Stack Overflow
  I have an issue with an application I'm writing with ffmpeg api. I have an mp3 file that is missing id3 tags (it starts with frame data 0xFFFB). Now if I'm running ffprobe on this file, the av_format_dump from ffprobe gives this info: [AVFormatContext ⓐ 0000015509158a00] Opening 'OhYeah.mp3' for reading [file ⓐ 0000015509158fc0] Setting default whitelist 'file,crypto,data' Probing mp3 score:1 size:2048 Probing mp3 score:25 size:4096 Probing mp3 score:51 size:8192 [mp3 ⓐ 0000015509158a00] Format mp3 probed with size=8192 and (...)

9 avril

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

• 17:57
  How the ffmpeg fix is leading to clearing of teletext subtitles? [closed] - adarsh Newest 'ffmpeg' Questions - Stack Overflow
  Im working on the teletext subtitle feature and faced with subs not clearing issue. https://sourceforge.net/p/zapping/bugs/203/ The player is using ffmpeg and libzvbi library. Luckily, this issue was fixed in ffmpeg- https://github.com/FFmpeg/FFmpeg/commit/b1e0e216462a989a39e7b413aef6d32f8cedc154 and also in zvbi: https://github.com/zapping-vbi/zvbi/commit/40a6ab0200c46b67b059b5b1fb15793ce780892a I know the root cause and fix in zvbi library, and how it is ignoring c4 flag in case the same page no. But i want to understand how the ffmpeg fix is (...) -- https://sourceforge.net/p/zapping/bugs/203/, https://github.com/FFmpeg/FFmpeg/commit/b1e0e216462a989a39e7b413aef6d32f8cedc154, https://github.com/zapping-vbi/zvbi/commit/40a6ab0200c46b67b059b5b1fb15793ce780892a

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

• 14:49
  tests/checkasm: add exclude_guest for non-x86 linux perf - J. Dekker git.videolan.org Git - ffmpeg.git/rss log
  tests/checkasm: add exclude_guest for non-x86 linux perf The exclude_guest option only has an effect on x86. Omitting 'exclude_guest' defaults to zero which implies that you can count guest events should you run one. Some non-x86 kernels just ignore it, while others (e.g. the Asahi Linux kernels) require the user to explicitly set the option to 1, i.e. the only behaviour that makes sense when counting guest events isn't supported. Signed-off-by: J. Dekker <jdekⓐitanimul.li> [DH] (...)
• 21:13
  bsf: use standard include paths - Andrew Kelley git.videolan.org Git - ffmpeg.git/rss log
  bsf: use standard include paths Removes the special -I flag specified in the avcodec/bsf/ subdirectory. This makes code copy-pastable to other parts of the ffmpeg codebase, as well as simplifying the build script. It also reduces ambiguity, since there are many instances of same-named header files existing in both libavformat/ and libavcodec/ subdirectories. Reviewed-by: Lynne <devⓐlynne.ee> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/bsf/Makefile [DH] libavcodec/bsf/aac_adtstoasc.c [DH] libavcodec/bsf/av1_frame_merge.c [DH] libavcodec/bsf/av1_frame_split.c (...)
• 13:05
  avcodec/libsvt1: check return value of send/receive functions - James Almer git.videolan.org Git - ffmpeg.git/rss log
  avcodec/libsvt1: check return value of send/receive functions Reviewed-by: Sean McGovern <gseanmcgⓐgmail.com> Signed-off-by: James Almer <jamrialⓐgmail.com> [DH] libavcodec/libsvtav1.c

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

• 17:22
  How to process and upload large video files directly to cloud with ffmpeg but without fragmented MP4? - volume one Newest 'ffmpeg' Questions - Stack Overflow
  I am using ffmpeg via fluent-ffpmeg for Node.js to process videos uploaded by users. The problem I have is if a user uploades a huge movie file, say 8GB in size, then I don't want to store the file on the server as it will soon reach full capacity of space. I thought a way to tackle this was to stream the output from ffmpeg straight to cloud storage like AWS S3. The only way to do this (I believe) is using a PassThrough() stream: import PassThrough from 'node:stream'; import FFMpeg from 'fluent-ffmpeg'; let PassThroughStream = new (...) --

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

• 13:31
  configure, etc: switch to shebang without space - J. Dekker git.videolan.org Git - ffmpeg.git/rss log
  configure, etc: switch to shebang without space Note that the config.sh file is left without a shebang, this file is supposed to be sourced into the current environment. This commit is purely cosmetic. Signed-off-by: J. Dekker <jdekⓐitanimul.li> [DH] configure [DH] doc/texidep.pl [DH] tests/fate-run.sh [DH] tests/fate.sh
• 09:52
  ffbuild/libversion.sh: add shebang - J. Dekker git.videolan.org Git - ffmpeg.git/rss log
  ffbuild/libversion.sh: add shebang The implicit interpreter is dependent on the environment, and isn't guaranteed to be /bin/sh. Some packagers call this script directly, and in certain environments such as containers using qemu-user through binfmt_misc emulation on Linux it doesn't fallback to /bin/sh. To fix these cases we add the interpreter explicitly. Signed-off-by: J. Dekker <jdekⓐitanimul.li> [DH] ffbuild/libversion.sh
• 09:11
  lavc/vvc: Fix out-of-bounds array access - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Fix out-of-bounds array access The 2 which has been changed to an 8 in the array length expression is the maximum value of sps_bitdepth_minus8. This was missed when updating to VVCv2, which increased this maximum from 2 to 8. Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/intra.c
• 07:55
  lavc/vvc: Avoid overflow in coeff scale intermediate - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Avoid overflow in coeff scale intermediate Make intermediate result 64-bits to avoid an overflow before the right shift. Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/intra.c
• 07:55
  lavc/vvc: Fix buffer overread in CABAC - Frank Plowman git.videolan.org Git - ffmpeg.git/rss log
  lavc/vvc: Fix buffer overread in CABAC The size variable here is taken as gospel for the bounds of the input buffer in later logic. Clamp it to ensure that the returned region does not extend past that allocated in the underlying GetBitContext, even in the case entry point offsets are signalled in the bitstream. Also assert this for good measure. Signed-off-by: Frank Plowman <postⓐfrankplowman.com> [DH] libavcodec/vvc/dec.c

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

• 09:21
  Is there a video processing test set to cover most scenarios? [closed] - 砸石头的西西弗 Newest 'ffmpeg' Questions - Stack Overflow
  My application integrates ffmpeg, and there are often some special videos or parameters that I cannot handle correctly, but they cannot be discovered in advance, so I need a test set to help find bugs.I nedd a video processing test set to cover most scenarios. A test set which has some different kinds type of sample videos.
• 07:42
  How to create animated gif from images files? [closed] - Daniel Lip Newest 'ffmpeg' Questions - Stack Overflow
  i tried this command line D:\\Captured>ffmpeg -framerate 1/2 -start_number 1 -i "D:/New folder (76)/Image%d.png" -loop -1 D:/test.gif but getting error [image2 ⓐ 00000000026324a0] Could find no file with path 'D:/New folder (76)/Image%d.png' and index in the range 1-5 D:/New folder (76)/Image%d.png: No such file or directory here is a screenshot image of my folder with the images and i want to get only the images type png that start with the name Image  (...) --