226 articles

26 septembre

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

21:27
HEIC/HEIF to PNG using NVIDIA hevc_cuvid - Holy_diver Newest 'ffmpeg' Questions - Stack Overflow

OS: Ubuntu I want to convert heic/heif to png using GPU(not software decoding), mostly to avoid patent issues. While hevc_cuvid + ffmpeg works for h265 video. Since heic/heif are on the same platform hevc, How to convert them to png using "hardware decoding"
19:01
Slightly wrong color in MP4 videos written by PyAV - Yossi Kreinin Newest 'ffmpeg' Questions - Stack Overflow

I am writing MP4 video files with the following PyAV-based code (getting input frames represented as numpy arrays - the sort produced by imageio.imread - as input): class MP4: def __init__(self, fname, width, height, fps): self.output = av.open(fname, 'w', format='mp4') self.stream = self.output.add_stream('h264', str(fps)) self.stream.width = width self.stream.height = height # these 2 lines can be removed and the problem still reproduces: self.stream.pix_fmt = 'yuv420p' self.stream.options = (...) -- ,
15:43
FFmpeg: When I ignore audio 1 and transcode audio 2 to aac I get vorbis. Is this a bug in FFmpeg? [closed] - CA Opa Newest 'ffmpeg' Questions - Stack Overflow

I have videos with 2 audio tracks. I don't want to copy or transcode audio track 1. I only want to copy video, transcode audio track 2 and copy subtitles using FFmpeg. When I -map track 2 (-map 0:a:1) and transcode to aac the result I get is not aac but vorbis. What is wrong with my program code? Here is my code: "ffmpeg.exe" -i "U:\\infile.mkv" -map 0:v:0 -c:v:0 copy -map 0:a:1 -c:a:1 aac -ac:a:1 2 -b:a:1 192000 -map 0:s:0 -c:s copy "U:\\Outfile.mkv" This is what happens: Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709/unknown/unknown, progressive), (...)
12:39
How create a circular video (transparent area on top of video) effect without applying image mask to video - Arina Lubimova Newest 'ffmpeg' Questions - Stack Overflow

Basically i googled a lot and solutions suggests apply some PNG mask or do not provide needed solution. What i've found. ffmpeg -i main.mkv -i facecloseup.mkv -filter_complex "[1]trim=end_frame=1, geq='st(3,pow(X-(W/2),2)+pow(Y-(H/2),2));if(lte(ld(3),pow(min(W/2,H/2),2)),255,0)':128:128, loop=-1:1,setpts=N/FRAME_RATE/TB[mask]; [1][mask]alphamerge[cutout]; [0][cutout]overlay=x=W-w:y=0[v]; [0][1]amix=2[a]" -map "[v]" -map "[a]" out.mp4 command = "-i " + this.video1Path.getPath() + " -i " + (...) -- https://i.sstatic.net/MsL71.png, https://i.sstatic.net/aIFEV.png, https://i.sstatic.net/R8EAx.png, https://i.sstatic.net/WtqQg.png
10:09
AttributeError: 'FilterableStream' object has no attribute 'input' - ffmpeg-python - Karolek Newest 'ffmpeg' Questions - Stack Overflow

I am a fresh programmer and I am learning the Python language. I have been trying to design a graphical application (using tkinter and ffmpeg-python libraries) that converts an image file along with audio into a video of audio length displaying the image. Unfortunately whenever I try run program I keep encountering errors At first it was due to installing the ffmpeg library in pip package manager instead of ffmpeg-python. I uninstalled the previous one, installing the correct one making sure no other package causes problems. Using a short script like this, the library functioned (...)
09:28
Stream Chunks data to Rtmp server using ffmpeg with nodejs? - ashutosh karn Newest 'ffmpeg' Questions - Stack Overflow

const ondata = (chunk) => console.log(chunk) //Giving - Buffer 00 00 00 1c 66 74 79 70 64 61.......... Streaming(chunk,"rtmps://live-api-s.facebook.com:443/rtmp/FB-108963845678778") //Streaming function is given below in the next Block; i have a function named ondata which is continuously giving buffer data like this:- ( actually this a Chunk of .MP4 file.) `` `` Now I want to stream this Chunk data to `RTMP Server using FFMPEG so I doing this:- const child_process = (...)
07:40
Unable to stream webcam buffer (incoming from react to nodejs via socket using mediaRecorder api) to rtmp url using ffmpeg - Utkarsh Gangwar Newest 'ffmpeg' Questions - Stack Overflow

I have reactjs or simple vanilla client side code. Which is sending webcam feed as buffer via socket to our nodejs backend. Now at the backend, we are receiving that buffer, when we try to write that buffer as a file, it works. const WebSocket = require('ws'); const ffmpeg = require('fluent-ffmpeg'); const fs = require('fs'); const path = require('path'); const PassThrough = require('stream'); const wss = new WebSocket.Server( port: 4000 ); wss.on('connection', ws => (...)
04:51
Stream sent via FFMPEG (NodeJS) to RTMP (YouTube) not being received - Qumber Newest 'ffmpeg' Questions - Stack Overflow

I am writing a very basic chrome extension that captures and sends video stream to a nodeJS server, which in turns sends it to Youtube live server. Here is my implementation of the backend which receives data via WebRTC and send to YT using FFMPEG: const express = require('express'); const cors = require('cors'); const RTCPeerConnection, RTCSessionDescription = require('ⓐroamhq/wrtc'); const spawn = require('child_process'); const app = (...)

25 septembre

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

19:09
How do I skip audio 1 and transcode audio 2 to aac with ffmpg? [closed] - CA Opa Newest 'ffmpeg' Questions - Stack Overflow

I have videos with 2 audio tracks. Track 1 is ac3 foreign and track 2 is flac English. I only want to transcode the English track 2. When I use ffmpg to map track 2 and transcode to aac the result is vorbis. Here is my code: "ffmpeg.exe" -i "U:\\infile.mkv" -map 0:v:0 -c:v:0 copy -map 0:a:1 -c:a:1 aac -ac:a:1 2 -b:a:1 192000 -map 0:s:0 -c:s copy "U:\\Outfile.mkv" This is what happens: Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709/unknown/unknown, progressive), 1278x720 [SAR 1:1 DAR 71:40], 23.98 fps, 23.98 tbr, 1k tbn (default) Stream #0:1(rus): Audio: (...)
22:54
Algorithm to draw waveform from audio - yayuj Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to draw a waveform from a raw audio file. I demuxed/decoded an audio file using FFmpeg and I have those informations: samples buffer, the size of the samples buffer, the duration of the audio file (in seconds), sample rate (44100, 48000, etc), sample size, sample format (uint8, int16, int32, float, double), and the raw audio data itself. Digging on the Internet I found this algorithm (more here): White Noise: The Algorithm All you need to do is randomize every sample from –amplitude to amplitude. We don’t care (...)
14:14
Firebase Function using ffmpeg successful with emulator, out of memory when deployed - flyingL123 Newest 'ffmpeg' Questions - Stack Overflow

I need some help. I have a .mov file in Firebase Storage. The file is 25 seconds long and 106 MB. I wrote a callable Firebase function that uses ffmpeg to convert the file to a .mp4 file and save it to Firebase Storage. When I test the function using the Functions emulator, it works without issue. The function returns successfully and I see the converted file appear in storage. The converted video is about 6 MB and plays correctly when dowloaded. When I deploy this function and run it in production on the exact same video file, the function fails with: 'Memory limit of (...) -- https://cloud.google.com/functions/docs/configuring/memory'
12:17
Failed to load audio: [WinError 2] The specified file can not be found. RVC - Eduard Vlasov Newest 'ffmpeg' Questions - Stack Overflow

Trying to convert audio with text to my own AI Model with rvc_convert, but it fails and got me this Exception: Traceback (most recent call last): File "f:\\python\\py\\tts\\venv\\src\\rvc\\lib\\audio.py", line 14, in load_audio ffmpeg.input(file, threads=0) File "F:\\Python\\py\\TTS\\venv\\lib\\site-packages\\ffmpeg\\_run.py", line 313, in run process = run_async( File "F:\\Python\\py\\TTS\\venv\\lib\\site-packages\\ffmpeg\\_run.py", line 284, in run_async return subprocess.Popen( File "C:\\Users\\Quick\\AppData\\Local\\Programs\\Python\\Python310\\lib\\subprocess.py", line 966, in (...) -- https://github.com/BtbN/FFmpeg-Builds/releases
09:34
Disk [videos] does not have a configured driver - oshakab Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create a thumbnail using laravel and ffmpeg. But am getting this error. Disk [videos] does not have a configured driver. My code public function index() FFMpeg::fromDisk('videos') ->open('steve_howe.mp4') ->getFrameFromSeconds(10) ->export() ->toDisk('thumnails') ->save('FrameAt10sec.png'); // $videos = Videos::where('user_email', Auth::user()->email)->get(); // return view('instructor.videos')->with('videost', (...)
10:43
Artifacts during playback of RTSP using FFmpeg API - ffvideoner Newest 'ffmpeg' Questions - Stack Overflow

I need to play RTSP video from an IP camera. If I use ffplay or VLC, everything is fine. But if I use FFmpeg API (C#, FFmpeg.AutoGen), then artifacts appear on the frames. What could be wrong with using FFmpeg API? AVFormatContext* pFormatContext = ffmpeg.avformat_alloc_context(); int error; error = ffmpeg.avformat_open_input(&pFormatContext, rtspUrl, null, null); if (error != 0) throw new ApplicationException(Helpers.GetErrorMessage(error)); error = ffmpeg.avformat_find_stream_info(pFormatContext, null); if (error != (...) --

24 septembre

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

20:10
Can I specify unique pts for each frame in commandline? [closed] - postscripter Newest 'ffmpeg' Questions - Stack Overflow

I have a bunch of jpeg pictures, say four: 01.jpg, 05jpg, 12.jpg and 13.jpg. Can I create an mjpeg/mp4 with variable framerate, consisting of exactly four frames with pts = 01 sec, 05 sec, 12 sec and 13 sec respectively? Without duplicating or looping them? I believe it can be done with ffmpeg API, but I'm limited to cmd only.
15:21
Why the number of samples given by `ffmpegio` differs using 2 methods? - Julien Larget-Piet Newest 'ffmpeg' Questions - Stack Overflow

I have an mp3 file at a sample rate value of 44100, let's name it a.mp3. Using python library ffmpegio with the following code, i get a total amount of sample equal to 290704. with ffmpegio.open(file, 'ra', blocksize = 16, sample_fmt = 'dbl') as file_opened: for i, indata in enumerate(file_opened): do some stuff print((i + 1) * 16) But, ffmpegio.probe.audio_streams_basic('a.mp3')[0]['nb_samples'] gives me 292608 How the difference between 292608 and 290704 could be explained? (...) -- https://python-ffmpegio.github.io/python-ffmpegio/
14:30
How to decode frames from MDAT atom extracted from mp4 video [closed] - Gurinderbeer Singh Newest 'ffmpeg' Questions - Stack Overflow

I am new to video codecs and learning video file format specifications. I have read about QUICKTIME file format specifications from here, and MP4 file format (which is almost similar) from here. There are atoms such FTYPE, MOOV, MDAT etc. The MDAT atom contains actual audio and video data. The MOOV atom contains information about how to extract data from MDAT, it gives references to chunks (samples). I want to extract the video samples in MDAT atom from video file without using any tool such ffmpeg, or juggler etc. I can write my own code for this. The problem is, even if I can (...) -- here, here
16:58
How to resize a video with FFMPEG so that it has a max size, horizontal or vertical, without losing aspect ratio? - ipartola Newest 'ffmpeg' Questions - Stack Overflow

There are lots of questions on SO about resizing video but they all seem to assume orientation. Let's say that I am ingesting user videos and sometimes they are horizontal and sometimes vertical. I'd like to downscale them to at most 1920x1080 or 1080x1920, depending on orientation, but never upscale. I can't examine videos ahead of time so I am looking for a filter command that will do all this logic in one go. Anyone have anything like this (...)
13:06
How much the duration of an mp3 file given by Ffprobe is precise? - Julien Larget-Piet Newest 'ffmpeg' Questions - Stack Overflow

I have an mp3 file at a sample rate value of 44100, let's name it a.mp3. So i get the duration of a.mp3 with the following ffprobe command: ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 a.mp3 I get 7.752 seconds. Because the sample rate is per second, in theory the total amount of samples should be, 44100 * 7.752 = 341863.2 Let's round it to 341863 But using python library ffmpegio with the following code, i get a total amount of sample equal to 340560. with ffmpegio.open(file, 'ra', (...) -- https://python-ffmpegio.github.io/python-ffmpegio/
09:37
Convert FFmpeg command to GStreamer pipeline parse image from rtsp stream - azharmalik3 Newest 'ffmpeg' Questions - Stack Overflow

I would like to convert the working FFmpeg command to a GStreamer pipeline to extract image from the RTSP stream. ffmpeg -hide_banner -v error -rtsp_transport tcp -stimeout 10000000 -i 'rtsp://domain/Streaming/tracks/101?starttime=20220831T103000Z&endtime=20220831T103010Z' -vframes 1 -y image.jpg Here is the GStreamer pipeline I tried to convert: gst-launch-1.0 rtspsrc location="rtsp://domain/Streaming/tracks/101?starttime=20220831T103000Z&endtime=20220831T103010Z" max-rtcp-rtp-time-diff=0 latency=0 is_live=true drop-on-latency=true ! decodebin3 ! (...)
08:26
FFmpeg: Pipe segments to s3 - Brendan Kennedy Newest 'ffmpeg' Questions - Stack Overflow

I'd like to pipe ffmpeg segments to s3 without writing them to disk. ffmpeg -i t2.mp4 -map 0 -c copy -f segment -segment_time 20 output_%04d.mkv Is it possible to modify this command so that ffmpeg writes segments to an s3 bucket? Something like this perhaps? ffmpeg -i t2.mp4 -map 0 -c copy -f segment -segment_time 20 pipe:1 \\ | aws s3 cp - s3://bucket/output_%04d.mkv When I run the command above I receive this error Could not write header for output file #0 (incorrect codec parameters ?): Muxer not found This command works except (...)
08:24
FFmpeg drawbox with fill color - CoXier Newest 'ffmpeg' Questions - Stack Overflow

From doc, I use below command to draw a box and fill it with color. ffmpeg -i output.mp4 -vf "drawbox=x=0:y=570:w=in_w:h=40:color=pinkⓐ0.5:t=fill" output_1.mp4 I got an error. [Parsed_drawbox_0 ⓐ 0x7fa5c6f05840] [Eval ⓐ 0x7ffee6f23bc0] Undefined constant or missing '(' in 'fill' Last message repeated 5 times [Parsed_drawbox_0 ⓐ 0x7fa5c6f05840] Error when evaluating the expression 'fill'. [Parsed_drawbox_0 ⓐ 0x7fa5c6f05840] Failed to configure input pad on (...) -- doc
09:05
FFMPEG changes color when adding an image as first frame - hendrikschneider Newest 'ffmpeg' Questions - Stack Overflow

I am using ffmpeg to add an image as a first frame. This one works but the issue is that the colors are being faded. My attempt was to check the color encoding of the input video and apply it to the output video but still the issue is there. What I found out is that this issue does not happen when I use a frame from the video, so it somehow related to using an image. This is my command to add an image as thumbnail: ffmpeg -loop 1 -framerate 30 -t 0.5 -i thumbnail.png -f lavfi -t 0.5 -i aevalsrc=0 -i input_video.mp4 -filter_complex "[0:v][1:a][2:v][2:a] concat=n=2:v=1:a=1" (...) --
00:27
Latency and frame break using Hikvison using OpenCV - Arjun Mani Newest 'ffmpeg' Questions - Stack Overflow

When I try reading frames from Hikvision camera, I face latency and frame break, from OpenCV, but it works fine with ffmpeg, and if I use any other camera, like axis, it works, fine but in Hikvision, I have some issue, so if someone has solved this issue, can please share me to solve I need to resolve this issue. import cv2 import cv2 # RTSP URL rtsp_url = "rtsp://admin:okulr123ⓐ192.168.0.64:554/Streamings/channels/101" # Create a VideoCapture object cap = cv2.VideoCapture(rtsp_url) # Check if the connection is opened if not (...)

23 septembre

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

15:38
Is it possible to get exactly same output from Gstreamer and FFMpeg? [closed] - beda pišl Newest 'ffmpeg' Questions - Stack Overflow

I found out that dumping the same video file (link: https://drive.google.com/file/d/1KaVXUMzLBKF8vOwy-QR1VCjRujEOHhFi/view?usp=sharing) using Gstreamer: gst-launch-1.0 filesrc location=video.avi ! decodebin ! videoconvert | pngenc ! multifilesink location=gstreamer_frames/"frame_%d.png" gives slightly different images compared to using equivalent ffmpeg command ffmpeg -i video.avi ffmpeg_frames/frame_%d.png The differences can be checked for example with Python: >>> import cv2 >>> ffmpeg_image = cv2.imread("ffmpeg_frames/frame_280.png") >>> (...) -- https://drive.google.com/file/d/1KaVXUMzLBKF8vOwy-QR1VCjRujEOHhFi/view?usp=sharing
13:09
Reduce ffmpeg CPU usage with h265 [closed] - Neskelogth Newest 'ffmpeg' Questions - Stack Overflow

I have a video file to convert using ffmpeg on Ubuntu 22.04. The input uses the codec h264 and I want to convert it to h265 (mainly for storage capacity reasons). The output of ffmpeg -version is ffmpeg version N-113725-g37702e2066 Copyright (c) 2000-2024 the FFmpeg developers built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04) configuration: --enable-nonfree --enable-cuda-nvcc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --disable-static --enable-shared --enable-libx265 --enable-gpl libavutil 58. 39.100 / 58. (...)
22:57
Adobe alchemy compiler problem- it generates .l.bc files, how to turn them into swc's? - Rella Newest 'ffmpeg' Questions - Stack Overflow

So I try to compile ffmpeg as I described here after this patch I started seeing .l.bc files but no .swc files. So how to use alchemy completion suite to turn .l.bc into .swc? -- this
19:20
How can I remove silence of a video? [closed] - Alex Newest 'ffmpeg' Questions - Stack Overflow

I wanted to automatically remove the silence from some of my videos. I found the following command by searching: ffmpeg -i C:\\Users\\`*`myusername`*`\\Desktop\\videowithsielence.mp4 -af silenceremove=1:0:-50dB C:\\Users\\`*`myusername`*`\\Desktop\\newvideo.mp4 There isn't any error and this is the following output: ffmpeg version N-117094-g2bf588f273-20240921 Copyright (c) 2000-2024 the FFmpeg developers built with gcc 14.2.0 (crosstool-NG 1.26.0.106_ed12fa6) configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config (...)
17:13
Having issues making an app with py2app ffmpeg and ffprobe - Nuno Mesquita Newest 'ffmpeg' Questions - Stack Overflow

I have made an app in OSX Python, that uses FFMEG and ffprobe. It runs fine in my VS Code. I want to make a self sustained app, that others can use, without needed to install anything themselves. So, I manually included the static libraries in the bin folder of my main app, and am able to run the app using the libraries inside my bin folder. I have lost many hours trying to figure this out, and am always getting the same error. My best shot was being able to open the app inside app/contents/resources and running via Python, but still have the issue saying that ffprobe (...)
15:06
avcodec_find_encoder(AV_CODEC_ID_H264) returns null - Monjura Rumi Newest 'ffmpeg' Questions - Stack Overflow

I am building an android application which will encode image captured from camera preview and later decode it. I am using ffmpeg library to encode and decode. To build static library with x264 I have used this tutorial. http://dl.dropbox.com/u/22605641/ffmpeg_android/main.html. As a source code of ffmpeg if I use the one downloaded from the link given in tutorial I can built it but can't build library if i use source code downloaded from here git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg. I have built library in ubuntu and using it in windows 7 in Eclipse. As I need only h264 (...)
12:57
ffmpeg conversation hdr to sdr thumbnails [closed] - Martin Newest 'ffmpeg' Questions - Stack Overflow

ffmpeg -i input -c:v libwebp -preset default -vf "scale=1280:-1,select='not(mod(n,100))',setpts='N/(30*TB)'" -lossless 0 -compression_level 6 -q:v 60 -preset picture -an -frames:v 4 output-%02d.webp This is my command and how to do it to convert from hdr to sdr. help in solving the problem
11:27
Trim Audio Flutter ( ffmpeg_kit_flutter Package) Not Working - Sharath Appesh Newest 'ffmpeg' Questions - Stack Overflow

Audio Trim is not working Flutter Version : 3.0.2 Dart : 2.17.3 Package used : ffmpeg_kit_flutter: ^4.5.1 Input file path : "/data/user/0/com.goonetech.v1.gofinal/cache/file_picker/sample-15s.mp3" Output file path : "/data/user/0/com.goonetech.v1.gofinal/app_flutter/output.mp3" double start=2, double end=5; String path="/data/user/0/com.goonetech.v1.gofinal/cache/file_picker/sample-15s.mp3" static Future cutAudio(String path, double start, double end) async final Directory dir = await (...)
11:26
Latency and frame break using Hikivison using OpenCV - Arjun Mani Newest 'ffmpeg' Questions - Stack Overflow

When I try reading frames from Hikivision camera, I face latency and frame break, from OpenCV, but it works fine with ffmpeg, and if I use any other camera, like axis, it works, fine but in Hikivision, I have some issue, so if someone has solved this issue, can please share me to solve I need to resolve this issue. import cv2 import cv2 # RTSP URL rtsp_url = "rtsp://admin:okulr123ⓐ192.168.0.64:554/Streamings/channels/101" # Create a VideoCapture object cap = cv2.VideoCapture(rtsp_url) # Check if the connection is opened if not (...)
09:34
Having sound issues while streaming to youtube - Hen Simkin Newest 'ffmpeg' Questions - Stack Overflow

I created an app that uses rtmp and ffmppeg and youtube api for streaming to youtube, when i stream and i go to youtube i face sound issues, the sound of the live sounds laggy and robotic. this is my configuration : const commonOutputOptions = [ '-c:v libx264', '-c:a aac', '-preset veryfast', '-crf 30', '-b:v 3500k', '-b:a 128k', '-ac 2', '-ar 44100', '-g 48', '-keyint_min 48', '-pix_fmt yuv420p', (...)
07:05
How to use ffmpeg to open 2 cams and push the stream from one of them? - kkk123 Newest 'ffmpeg' Questions - Stack Overflow

I'm using ffmpeg to capture 2 cams and push stream from one of them. For single camera, I start capturing frames by calling startCameraCapture() from main() which calls initRemoteStream(). Here it opens a pipe to ffmpeg to initialize streaming. Followed by it, decodePacket() is called which writes YUV422 data to the pipe. It runs fine. But when I want to use 2 cameras, I create a thread for each camera in main() and define active_cam. When I want to push cam1's stream, active_cam = 1. The same logic of the single cam is used. It doesn't work. Could you please (...)

22 septembre

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

16:02
How to feed frames one by one and grab decoded frames using LibAV? - Alvan Rahimli Newest 'ffmpeg' Questions - Stack Overflow

I am integrating a third party system where I send a TCP packet to ask e.g. 5 frames from a live CCTV camera stream, and it sends those 5 frames one by one. Each package is h264 encoded frame, wrapped with some relevant data. I need to write a code using Libav where I can: Feed the frames one by one using AVIOContext (or smth similar). Grab decoded frame. Draw that to a window (Not relevant to the question, writing for context). I've been doing the same with GStreamer by creating a pipeline like this: AppSrc -> H264Parser -> H264Decoder -> (...)
12:03
How can I use physical computer's GPU on VMware Workstation? - ching Newest 'ffmpeg' Questions - Stack Overflow

I am ching. I want to use GPU to accelerate video transcoding time by using ffmpeg on the virtual machine, VMware Workstation. I use command lspci | grep VGA, the output is 00:0f.0 VGA compatible controller: VMware SVGA II Adapter It seems that I only can use its own Graphic Card on VMware, right? How can I use my physical computer's GPU, NVIDIA Quadro K2000? Or another solution can solve the problem mentioned on the (...)
09:25
FFPEG: Errors opening audio input stream on MacOs - Xavi Newest 'ffmpeg' Questions - Stack Overflow

I am encountering the following warning (from Audio Toolbox?) very often when opening an external microphone audio stream with ffmpeg's libavformat on macOS: CMIO_Unit_Converter_Audio.cpp:590:RebuildAudioConverter AudioConverterSetProperty(dbca) failed (1886547824) This warning results on the codec id of the stream not being properly detected and it defaulting to the dummy AV_CODEC_ID_FIRST_AUDIO, which defaults to AV_CODEC_ID_PCM_S16LE, and results on distorted audio decoding the packet when this is not the correct codec. You can observe the error with the following (...) -- Audio Toolbox
07:19
Discord bot not playing any audio and immediately terminates once joined channel (Python) - MrPwnageLegend Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create a small discord bot for me and my friends. Currently, I tried several examples online for a music bot using ffmpeg. I added the path to environment variables as well. I simplified the code to make it easier to debug. Below is the code: voice_client = await msg.author.voice.channel.connect() print(voice_client.is_playing()) FFMPEG_OPTIONS = 'before_options': '-reconnect 1 -reconnect_streamed 1 -reconnect_delay_max 5','options': '-vn' voice_client.play(discord.FFmpegPCMAudio(source="test.mp3", (...)
05:03
Decoding pcm_s16le with FFMPEG? - Davide Caresia Newest 'ffmpeg' Questions - Stack Overflow

i have a problem decoding a wav file using ffmpeg. I'm new to it and i'm not quite used to it. In my application i have to input the audio file and get an array of samples to work on. I used ffmpeg to create a function that gets in input the path of the file, the position in time where to start to output the samples and the lenght of the chunk to decode in seconds. I have no reputation, so I had to make a gdrive directory where you can see the problem and the files on which I worked. Here it is: https://goo.gl/8KnjAj When I try to (...) -- https://goo.gl/8KnjAj

21 septembre

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

20:45
How to use ffmpeg to stream a playlist of clips that are in very different formats? [closed] - gulagkulak Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to use ffmpeg to stream a playlist of video files that are all in very different formats, sizes, and aspect ratios. The problem is that often when the video changes I get a spinning wheel of death on the target streaming sites and some kinda error in the ffmpeg output. Sometimes it's [flv ⓐ 0x7f5c10686200] Failed to update header with correct duration. Or [flv ⓐ 0x7f5c10686200] Failed to update header with correct filesize. Or a whole bunch of [aost#0:1/aac ⓐ 0x8947680] Non-monotonic DTS; previous: 82536459, current: 78988751; changing to 82536460. (...)
21:28
The command "brew uninstall ffmpeg" gives me a permission error - digit Newest 'ffmpeg' Questions - Stack Overflow

I get this Error: Error: Permission denied - /usr/local/lib/libswscale.dylib What is this dylib for ? I upgraded and broke my installation by that (i assume) and tried to uninstall and unlinked. Unlink worked. uninstall gave me the error. What is the correct procedere ? sudo brew uninstall ffmpeg ? Why did I upgrade ? It worked fine before ...
11:14
The System Audio not included when recording screen using tab capture api - alpecca Newest 'ffmpeg' Questions - Stack Overflow

I am working on a chrome extension that let user record their current tab video + the current system audio for example playing a music on the tab. I read the docs on the web about preserve audio on tab capture api and the audio constraint to set to be true chrome.tabCapture.capture( video: true, audio: true, const stream = await new Promise((resolve, reject) => chrome.tabCapture.capture( video: true, audio: true, videoConstraints: mandatory: minFrameRate: 60, maxFrameRate: 60, minWidth: 1920, minHeight: (...)
05:51
FFmpeg add proxy to request - P1NG2WIN Newest 'ffmpeg' Questions - Stack Overflow

Does FFmpeg support the ability to add a proxy to a request? On the Internet, I found that there is the -http_proxy option, but when I tried to use it by typing ffmpeg -http_proxy=http://ip:port/ in terminal, I received an Option not found error

20 septembre

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

08:52
Concatenate multiple Genrated Output Video files using single command [closed] - Vinesh Chauhan Newest 'ffmpeg' Questions - Stack Overflow

i am trying to Build a FFMPEG command that accept 4 input Videos and generate the output video with 2x2 Grid also play all those video one after another one. so Archive this I have pass lavfi 4 inputs with duration with size. then I have passed 4 input videos. then I have first generate thumbnail of those videos, so what I am gonna do is I place first video and second thumbnail in hstack, third thumbnail and fourth thumbnail in hstack the both hstack output in vstack. i will do it this 4 times for all videos respectively and then lastly I am trying to contact all those video in one. but I (...) -- https://zippyshare.day/c0vhq9MvIMUTb8i/file
02:22
Should I open source my source code when I rebuild ffmpeg and dynamiclly link to my program? [closed] - openjz Newest 'ffmpeg' Questions - Stack Overflow

I have a c++ program developed on visual studio 2022, and my program need to work with ffmpeg, I rebuild it and I don't know if there is open source problem. I rebuild ffmpeg for windows msvc paltform (according to https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC) by customize the build configuration, but I don't modify the source code and build script of ffmpeg, and I don't enable gpl or gpl v3 in the build configuration, ffmpeg is dynamiclly linked to my program, I'm sure that the only license I should concern is the LGPL-2.1 or later, in this case, (...) -- https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC
18:52
Extract just the audio link from a youtube video without converting - MR-4O4 Newest 'ffmpeg' Questions - Stack Overflow

I know there are hundreds of sites to convert youtube video to mp3. Most of them do it by first downloading the video and then converting it to mp3(or any other audio format) on their server using youtube-dl, ffmpeg or similar programs. What I want to know is, is there any way I can just extract the audio link for any youtube video? I don't know if it's possible but I saw a couple of websites doing it . First Website : Openaisearch.com This website simply gives a download link for the audio(getting it from youtube videos). I searched for a song and saw (...) -- Openaisearch.com, http://keepvid.com/?url=https://www.youtube.com/watch?v=PT2_F-1esPk
16:32
SPM binary target, additional frameworks not being included - Darren Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to integrate a binaryTarget into a project using Swift Package Manager. The binary comes as a .zip containing the main ffmpegkit.xcframework plus 7 additional .xcframework's that it depends on. Here's the folder structure from DerivedData/.../SourcePackages/artifacts/... after SPM has unzipped it. This is my Package.swift file: // swift-tools-version: 5.10 import PackageDescription let package = Package( name: "converter", platforms: [ .macOS(.v13), .iOS(.v14), ], products: [ .library( (...) --
14:45
FFMPEG - Struggling to find correct input audio codec parameters on macOS - Xavi Newest 'ffmpeg' Questions - Stack Overflow

I am trying to read my external stereo microphone with ffmpeg within my Qt Windows+macOs application, but I am struggling to obtain consistent correct input codec parameters on macOs. My findings and suspicions so far: The code I'm using in macOs is the following, where everything returns a successful return code: avdevice_register_all(); //macOs only, the same code in windows looks for "dshow" const AVInputFormat *inputFormat = av_find_input_format("avfoundation"); AVFormatContext* inputFormatContext; (...)
04:47
Decode a Twitch Stream to raw RGBA data ussing FFMPEG [closed] - ZeunO8 Newest 'ffmpeg' Questions - Stack Overflow

As the title states, I would like to take a Twitch stream, say the one at (https://www.twitch.tv/selectfm) and pass the URI to a formatContext for decoding packets in realtime. How would I go about getting a URI to a video stream so that I can pass to FFMPEG. I am using C++ to handle all my FFMPEG related tasks -- https://www.twitch.tv/selectfm
13:46
ImportError: No module named 'pydub' - ensminger Newest 'ffmpeg' Questions - Stack Overflow

I am creating a simple script that will use pydub to fetch files from a directory based on their name, then stitch a few of them together and export the result. I had the script working great in a Windows environment (Win 7, python 3.4), but now I'm trying to run on OSX. I have installed all necessary components - ffmpeg, libav. I have just installed pydub with pip, pulling directly from github. My file starts with the input statement from pydub import AudioSegment, and this is what I get: Traceback (most recent call last): File (...) -- github
11:55
Merge N mono audio files to one multichannel file without channel layout - Ilya Newest 'ffmpeg' Questions - Stack Overflow

As I understand channel layout not required and I can make arbitrary amount of channels in an audio file. Could you help me with merging channels from N audio files into one multichannel file? For example from mp3/wav/m4a/opus to wav/opus?
02:19
Transcode a video with FFMPEG C API gives error: Could not get pixel format for color format 'yuvj420p' range 'pc' - Yuukino Newest 'ffmpeg' Questions - Stack Overflow

I am trying to transcode a video with the FFMPEG C API but am getting this error: [h264_videotoolbox ⓐ 0x7faf92306800] Could not get pixel format for color format 'yuvj420p' range 'pc'. [h264_videotoolbox ⓐ 0x7faf92306800] Error: Cannot convert format 12 color_range 2: -22 I am creating the encoder as follows by copying the codec parameters from the input stream to the newly created encoder: AVStream *input_stream = input_format_context->streams[0]; AVCodec *codec = avcodec_find_encoder(input_stream->codecpar->codec_id); // Create the (...)

19 septembre

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

16:10
ffmpeg is lossing quality [closed] - gabriel guzman Newest 'ffmpeg' Questions - Stack Overflow

I have this in ffluent ffmpeg const ffmpegPath = require('ⓐffmpeg-installer/ffmpeg').path; const ffmpeg = require('fluent-ffmpeg'); ffmpeg.setFfmpegPath(ffmpegPath); ffmpeg() .input(videoDetails.imagePath) .input(audioPath) .audioCodec('aac') .videoCodec('libx264') .outputOptions([ '-crf 0', '-preset veryslow' ]) .on('end', () => console.log('Video generado correctamente'); resolve(videoDetails); // Retorna el objeto videoDetails si (...)
19:09
2 files found with path 'lib/arm64-v8a/libc++_shared.so' from inputs...-react native - CrackerKSR Newest 'ffmpeg' Questions - Stack Overflow

I am trying to enable package of ffmpeg-kit-react-native in react-native. The sample commands given in the example executes successfully. But I want to use libwebp for converting gif files to webp which is under package named video. As instructed . I have to enable the package to use some libraries. 2.2.1 Enabling a Package on Android Edit android/build.gradle file and add the package name in ext.ffmpegKitPackage variable. ext ffmpegKitPackage = "" So I added a line in the node_module/ffmpeg-kit-react-native/android/build.gradle android (...) -- ffmpeg-kit-react-native, example, package, instructed
15:53
Remove sequentially duplicate frames when using FFmpeg - metlira Newest 'ffmpeg' Questions - Stack Overflow

Is there any way to detect duplicate frames within the video using ffmpeg? I tried -vf flag with select=gt(scene\\,0.xxx) for scene change. But, it did not work for my case.
13:37
ffmpeg concat: "Unsafe file name" - sers Newest 'ffmpeg' Questions - Stack Overflow

Trying to convert a bunch of mts-files into a big mp4-file: stephanⓐrechenmonster:/mnt/backupsystem/archive2/Videos/20151222/PRIVATE/AVCHD/BDMV$ ~/bin/ffmpeg-git-20160817-64bit-static/ffmpeg -v info -f concat -i <(find STREAM -name '*' -printf "file '$PWD/%p'\\n") -deinterlace -r 25 -s hd720 -c:v libx264 -crf 23 -acodec copy -strict -2 ~/tmp/Videos/20151222.mp4 ffmpeg version N-81364-gf85842b-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.4.1 (Debian 5.4.1-1) 20160803 configuration: (...)
12:45
How to Crop Video in Kotlin Similar to Image Cropping Using FFmpeg? [closed] - Hafsa Azram Newest 'ffmpeg' Questions - Stack Overflow

I'm currently working on a Kotlin application where I need to crop videos in a manner similar to how images are cropped (i.e., selecting a rectangular area of the video to keep, rather than just trimming time segments). I'm using FFmpeg for video processing, but I'm encountering issues with the cropping commands. If FFmpeg is not suitable for video cropping, what other libraries or tools are available for this purpose in Kotlin? How can I integrate and use these libraries in my project for cropping (...)
13:41
Concat Command Issue in FFMPEG - Vinesh Chauhan Newest 'ffmpeg' Questions - Stack Overflow

i am trying to Build a FFMPEG command that accept 4 input Videos and generate the output video with 2x2 Grid also play all those video one after another one. so Archive this I have pass lavfi 4 inputs with duration with size. then I have passed 4 input videos. then I have first generate thumbnail of those videos, so what I am gonna do is I place first video and second thumbnail in hstack, third thumbnail and fourth thumbnail in hstack the both hstack output in vstack. i will do it this 4 times for all videos respectively and then lastly I am trying to contact all those video in one. but I (...) -- https://zippyshare.day/c0vhq9MvIMUTb8i/file
11:12
How do I write a batch file that opens a msys shell and then run commands in the shell? - cxu Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to automate the process of building ffmpeg on Windows 10. I'm following the guide here: https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC Everything works fine when I do it manually, however I want to write a batch file that I can run to go through the entire process automatically. Building requires me to set up the Visual Studio environment and the MSYS environment. This is where I'm having trouble, since running the MSYS environment opens up a new shell. I want to pass the configure/make/make install commands to the MSYS shell after it is (...) -- https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC
09:10
FFmpeg leaves green pixels in a simple video [closed] - Patola Newest 'ffmpeg' Questions - Stack Overflow

I use this command to remove the green screen and overlay another video as background. However, green screen removal leaves green pixels all around a stick figure carton character. My video is a cartoon so there are no lighting issues. Is there a way to improve this behavior? ffmpeg -y -i looped.mp4 -i green.mp4 -filter_complex "amix;[1:v]chromakey=0x00FF00:0.18:0.01 [ckout];[0:v][ckout]overlay=eof_action=pass[out]" -map [out] output.mp4 (...) --

18 septembre

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

22:20
writing jpg images from ffmpeg pipe - seandoucette Newest 'ffmpeg' Questions - Stack Overflow

Using php to read an rtsp stream from an ffmpeg command utilizing image2pipe, I'm finding the images are truncated in some manner and only display a partial image. My task is to write unique jpg filenames at 30fps. Below is the php code. I've simplified the filename structure in this example for clarity. The script performs as expected with no obvious errors writing out 30fps consistently. I can't figure out what extraneous or missing information in the content is causing the output images to appear corrupt. $cmd = "ffmpeg -rtsp_transport tcp -framerate 30 -i (...)
22:45
Frame duration issues when trimming videos in MATLAB/ffmpeg? - twilightecologist Newest 'ffmpeg' Questions - Stack Overflow

I have two videos (A.MOV and B.MOV), that are supposed to be perfectly synced. However, Video A (3708 frames), has 5 more frames than Video B (3703 frames). When I look at the timestamps of these frames, the extra A frames are at the very end of the video. In addition, the last frame in each video is a "padded" frame, with a duration much longer (around 10 times) than that of the other frames. I need my videos to be perfectly synced, with the same frame number. Since the extra frames are at the end of the video, I want to trim off the extra frames in A, as well as trim the "padded" (...)
22:49
Video streaming error: Uncaught (in promise) NotSupportedError: Failed to load because no supported source was found - Aizen Newest 'ffmpeg' Questions - Stack Overflow

Here is my problem: I have one video src 1080p (on the frontend). On the frontend, I send this video-route to the backend: const req = async()=>tryconst res = await axios.get('/catalog/item',params:SeriesName:seriesName);return data:res.data;catch(err)console.log(err);return false;const fetchedData = await req();-On the backend i return seriesName.Now i can make a full path,what the video is,and where it is,code: const videoUrl = 'C:/Users/arMori/Desktop/RedditClone/reddit/public/videos';console.log('IT VideoURL',videoUrl); const (...)
19:23
Facing issues with adding text over a video as watermark using ffmpeg in Laravel - Kelash Newest 'ffmpeg' Questions - Stack Overflow

I am facing issues with adding text over a video as a watermark using pbmedia/laravel-ffmpeg. Where am I going wrong? Code: $format = new X264(); $format->setAudioCodec('aac'); $format->setVideoCodec('libx264'); $format->setKiloBitrate(0); $localPath = '/' . $this->video->id . '.mp4'; $ffmpeg = FFMpeg::fromDisk("public") ->open($localPath) ->addFilter(function ($filters) (...)
19:03
How to record video and audio from webcam using ffmpeg on Windows? - Babu Newest 'ffmpeg' Questions - Stack Overflow

I want to record video as well as audio from webcam using ffmpeg, I have used the following codes to know what devices are available: ffmpeg -list_devices true -f dshow -i dummy And got the result: ffmpeg version N-54082-g96b33dd Copyright (c) 2000-2013 the FFmpeg developers built on Jun 17 2013 02:05:16 with gcc 4.7.3 (GCC) configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab le-iconv --enable-libass --enable-libbluray (...)
07:20
Multiple live video outputs advice. Live stream/Record/Preview, FFMPEG, Windows, Decklink [closed] - stroltz Newest 'ffmpeg' Questions - Stack Overflow

I am looking for advice on how best to achieve multiple live video outputs. The live source is a Decklink card on Windows. (We have a ffmpeg build working to access the card) We want 4 outputs; We want to run a preview window (low quality would be preferred) just so the user can see the video is working. We want to be able to live stream - single bit rate, RTMP. (goes up to a CDN) Independent from the streaming we want to be able to stop and start recording to file. Ideally using CRF. So a separate encode – but maybe we use the RTMP encode, not sure, and (...) -- https://trac.ffmpeg.org/wiki/Creating%20multiple%20outputs
11:57
h264 via WebRTC latency issue - Lucas Newest 'ffmpeg' Questions - Stack Overflow

I am trying to send a video stream encoded with h264 (hardware accelerated with nvidia encoder) via WebRTC for low latency display on a browser. More precisely, I have a thread that encodes an opengl framebuffer at a fixed frame rate, the resulting AVPacket's data (I encode using ffmpeg's C api) is then forwarded via WebRTC to the client (using aiortc) The problem is that I observe significant delays, that seem to depend on the frame rate I use. For example, running it locally, I get around 160ms delay when running at 30fps, and around 30ms when encoding at (...)
10:43
FFmpeg - Change resolution of the video with aspect ratio - Arthur Newest 'ffmpeg' Questions - Stack Overflow

all. How to change resolution of the video with aspect ratio with FFmpeg? There are options http://manpages.ubuntu.com/manpages/oneiric/man1/ffmpeg.1.html -s size Set frame size. The format is wxh (ffserver default = 160x128, ffmpeg default = same as source). The following abbreviations are recognized: and -aspect aspect Set the video display aspect ratio specified by aspect. aspect can be a floating point number string, or a string of the form num:den, where num and den are the numerator and (...) -- http://manpages.ubuntu.com/manpages/oneiric/man1/ffmpeg.1.html
06:46
There is a problem with converting ffmpeg video from hev1 to hvc1 - sixawnstar Newest 'ffmpeg' Questions - Stack Overflow

ffmpeg -i in.mp4 -c:v copy -c:a copy -tag:v hvc1 out.mp4 I used ffmpeg to transcode the videos, but some of the transcoded videos were black screens with audio but no visuals. enter image description hereenter image description here By using ffmpeg -i video.mp4 to view the video information, it was found that the information for both videos is consistent. However, the screen in Figure 1 displays a black screen after transcoding, whereas Figure 2 functions normally after (...) -- enter image description here, enter image description here
07:58
How to get language for embedded subtitles in video file using FFMPEG libraries - helgovic Newest 'ffmpeg' Questions - Stack Overflow

I have seen lots of examples on how to get the language codes using the command line interface, but how do you get them using the libraries?
07:12
How to extract a frame from an INSV format 360 video using Python - Kalpesh Shinde Newest 'ffmpeg' Questions - Stack Overflow

I have a 360 video captured with an Insta360 X3, which is in the INSV format. I would like to extract a frame from this video using Python, FFmpeg, or any other suitable tool, without using Insta360 Studio to export the video to MP4 first. Here is what I have tried so far: FFmpeg: I attempted to use FFmpeg to directly convert the INSV file to images, but I encountered errors, possibly due to the proprietary nature of the INSV format. ffmpeg -i input.insv -vf "select=eq(n,0)" -q:v 3 output.jpg This command did not work as expected and produced an error. Python (...)
07:03
react cant find ffmpegwasm - Martin Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create a working example for ffmpeg wasm with react js in my browser. I have been following this very simple example: https://www.youtube.com/watch?v=-OTc0Ki7Sv0&ab_channel=Fireship installed ffmpeg locally inside my react repo node_modules as seen here: And followed to tutorial video to edit the App.jsx so it looks like this: import React, useState, useEffect from 'react'; import './App.css'; import createFFmpeg, fetchFile from 'ⓐffmpeg/ffmpeg'; const ffmpeg = createFFmpeg( log: (...) -- https://www.youtube.com/watch?v=-OTc0Ki7Sv0&ab_channel=Fireship,
08:01
ServletOutputStream failed to flush: - Dawid Newest 'ffmpeg' Questions - Stack Overflow

I try to convert m3u8 file to WebM using ffmpeg and stream it onto browser. I want it to play on browser without using any javascript. Stream video method: public void streamVideo(OutputStream os ) String url = "m3u8file.m3u8"; byte[] bytes = new byte[BUFFER]; int bytesRead = -1; ProcessBuilder pb = new ProcessBuilder( "ffmpeg", "-i", url, "-c:v", "libvpx-vp9", "-b:v", "1M", "-c:a", "libopus", "-b:a", "128k", "-f", "webm", "pipe:1" ); pb.redirectErrorStream(true); try (...)
04:12
Get blur effect inside a drawn box using ass format - Armen Sanoyan Newest 'ffmpeg' Questions - Stack Overflow

I have Nodejs application which generates subtitles file for video editing. The editing is done by ffmpeg. For each word I also generate a backdrop with rounded corners using drawing command. Example of dialog for backdrop. Dialogue: 0,00:00:38.60,00:00:42.10,Default,,0,0,0,,\\p1\\1a&HD8&\\c&HE27FA4&\\pos(341.07421875,517.5)\\an4 \\p1m 15 0 b 1202.8515625 .... \\p0 Now I want to make the backdrop blur. (Text backdrop by ass formatting) I have tried to use \\blur or \\be, but they are for other purpose. Below is reference from the doc Enable or disable a (...) -- drawing command, Enable or disable a subtle softening-effect for the edges of the text
05:38
How to solve video is choppy when scrolling on android browser? - SiLeafClover Newest 'ffmpeg' Questions - Stack Overflow

I am currently doing video scrolly kind of things. I'm using GSAP and Scrolltrigger and sveltekit to play video on scroll. At the beginning of the implementation, the video is very laggy on scroll on all browsers and cross devices. So I do some research and found out video encoding is so important and found this ffmpeg command through codepen. ffmpeg -i originalVideo.mp4 -movflags faststart -vcodec libx264 -crf 23 -g 1 -pix_fmt yuv420p output.mp4 When I use the video which is exported by the above command, it works smoothly on windows, mac and ios. But I'm still having (...)
03:57
FFmpeg can successfully retrieve the RTSP stream, but it cannot print the time_base - 何西西 Newest 'ffmpeg' Questions - Stack Overflow

I can successfully obtain the RTSP stream and use the av_dump_format function to print the stream information, but I cannot retrieve the time_base. Why is that? FFmpeg is version: n4.0.6 this is my code: int main(int argc, char *argv[]) struct timeval systemstart_time; struct timeval rtspfetch_time1; struct timeval rtspfetch_time2; AVFormatContext *pFormatCtx = NULL; AVPacket *av_packet = NULL; AVDictionary *options = NULL; gettimeofday(&systemstart_time, NULL); print_time_with_microseconds(systemstart_time); (...)

17 septembre

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

12:47
ffmpeg loosing audio after green screen overlay [closed] - Patola Newest 'ffmpeg' Questions - Stack Overflow

I tried this command to overlay a background video with audio under a green screen vid. However, I keep on loosing audio. How do I keep the audio? also, green screen leaves some green at the edges behind. any idea how to optimize that? ffmpeg -i main-1.mp4 -i green.mp4 -filter_complex "[1:v]chromakey=0x00FF00:0.18:0.01 [ckout];[0:v][ckout]overlay=eof_action=pass[out]" -map [out] output.mp4
13:49
Crackling sound when recording audio with ffmpeg - Victor Basso Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to record from a microphone and webcam on MacOS with the following command: ffmpeg -f avfoundation -framerate 30 -i "0:0" ~/recorded.mp4 My result has crackling in the audio. I'm familiar with this problem when you use a DAW: you solve it by increasing the sample buffer. The idea is that audio samples coming from your interface/mic are not coming in a consistent or fast enough rate, so the missing samples being filled with zeroes causes the crackling sound. To avoid missing samples you want the recording software to wait longer for samples accumulating (...) -- DAW
08:36
How to force AVCodecContext to release all references to any buffers - imikbox Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFMPEG to decode a video stream and I have implemented a custom functions for AVFrame memory allocation and de-allocation (by setting a custom function for codec_ctx->get_buffer2). So when an AVFrame requires new memory, I do the memory allocation and wrap an AvBufferRef around it using av_buffer_create. I also define my custom de-allocation function, so when the reference counted AvBufferRef is not required anymore, I do the memory clean up. This way I can log precisely when memory gets allocated and when a buffer becomes free. During video decoding I want to do a (...)
08:27
Video streamign with FFMpeg and Nest.js+Next.js - Aizen Newest 'ffmpeg' Questions - Stack Overflow

Here is my problem: I have one video src 1080p (on the frontend). On the frontend, I send this video-route to the backend: const req = async()=>tryconst res = await axios.get('/catalog/item',params:SeriesName:seriesName);return data:res.data;catch(err)console.log(err);return false;const fetchedData = await req();-On the backend i return seriesName.Now i can make a full path,what the video is,and where it is,code: const videoUrl = 'C:/Users/arMori/Desktop/RedditClone/reddit/public/videos';console.log('IT VideoURL',videoUrl); const (...)
08:17
Running ffmpeg (WASM/NodeJS) on multiple input files in a React App - FlipFloop Newest 'ffmpeg' Questions - Stack Overflow

I recently followed a tutorial by Fireship.io going over making a React App that enables a user to input a video file and convert it into a gif. Here is the source GitHub Repo. The packages used by the project are ⓐffmpeg/ffmpeg and ⓐffmpeg/core, which take care of converting the video into a GIF (although this can be changed to whatever, like the FFmpeg CLI tool). I wanted to take this a step further and make it possible for me to convert multiple videos at once, each into their own separate gif, however, I am having trouble running the next task when the first is (...) -- Fireship.io, GitHub Repo, documentation, ffmpeg wasm, example
07:46
`free(): invalid next size (normal)` after loading some frames of some videos using ffmpeg libs - rakivo Newest 'ffmpeg' Questions - Stack Overflow

here is the function: uint8_t *load_first_frame(const char *file_path, AVFrame **frame) int ret; AVFormatContext *format_ctx = NULL; if ((ret = avformat_open_input(&format_ctx, file_path, NULL, NULL)) < 0) eprintf("could not open input file\\n"); return NULL; if ((ret = avformat_find_stream_info(format_ctx, NULL)) < 0) eprintf("could not find stream info\\n"); avformat_close_input(&format_ctx); return NULL; int stream_idx = -1; for (unsigned int i = 0; i < format_ctx->nb_streams; (...)

16 septembre

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

13:33
Generate MPEG-DASH segments when requested [closed] - John Smith Newest 'ffmpeg' Questions - Stack Overflow

Up front disclaimer: this question is almost identical to the one here: Generate single MPEG-Dash segment with ffmpeg but it seems that ffmpeg has updated over time and now the answer provided by Coumeu is no longer accurate. Using ffmpeg, I am attempting to "lazily create" the segments needed for MPEG DASH playback. I have a static manifest (MPD) which includes SegmentTemplates for 1 video and 1 audio stream. Only when the endpoints provided in the SegmentTemplate for init or media segments is hit it will generate this segment. In other words, nothing is processed up (...)
16:59
Python PyAV how to flush to disk regularly - Jojo71 Newest 'ffmpeg' Questions - Stack Overflow

I am using PyAV for encoding a video stream from a camera and saving it to disk. This works in general, but I have one problem left: the file on the disk stays at 0kb regardless of how long i record. Onyl when I close the output_stream it saves to disk. Since I want to do hour long streams, I need to flush the stream regularly to disk. Also if my program crashes the file needs to be valid. Here is my code for the recorder class ,which I call with "test.mkv" as output file. class Recorder: def __init__(self) -> None: recorder_instances.append(self) (...)
10:58
how to resolve pixel jittering in javacv generated video - Vikram Newest 'ffmpeg' Questions - Stack Overflow

I am trying to generate video using images, where image have some overlays text and png icons. I am using javacv library for this. Final output video seems pixelated, i don't understand what is it since i do not have video processing domain knowledge, i am beginner to this. I know that video bitrate and choice of video encoder are important factor which contributes to video quality and there are many more factors too. I am providing you two output for comparison, one of them is generated using javacv and another one is from moviepy library Please watch it in full (...) -- https://imgur.com/a/aowNnKg, https://imgur.com/a/eiLXrbk

15 septembre

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

21:39
Inserting clips into mp4 via ffmpeg - lfgan Newest 'ffmpeg' Questions - Stack Overflow

I am looking to create mp4 files by combining multiple static mp4s and mp3s. I have a script already to convert mp3 to mp4 and using the album art as a static background image, and inserting the intro. What I am having problems with is that it cannot concatenate the videos reliably, or at all for that matter. This is the code that I currently have, it is ChatGPT, however I gave up as it seemed like it was just running in circles. setlocal :: Set variables set "mp3file=myfile.mp3" set "coverart=extracted_cover.jpg" set "outputfile=music.mp4" set (...)
16:25
On the fly video conversion in django during upload - Illucious Newest 'ffmpeg' Questions - Stack Overflow

I an making a backend in django rest where user will be uploading videos in multiple formats such as mp4, avi, etc. I want to convert these videos to a single h264 format while storing them but rather than first taking the full video and then converting it i want to convert it while it is being uploaded how can i do that. The video file is comming through multipart/form-data I have been stucck and not able to find a plausible approach but i know that i have to use FFMpeg in some (...)
16:52
javacv and moviepy comparison for video generation - Vikram Newest 'ffmpeg' Questions - Stack Overflow

I am trying to generate video using images, where image have some overlays text and png icons. I am using javacv library for this. Final output video seems pixelated, i don't understand what is it since i do not have video processing domain knowledge, i am beginner to this. I know that video bitrate and choice of video encoder are important factor which contributes to video quality and there are many more factors too. I am providing you two output for comparison, one of them is generated using javacv and another one is from moviepy library Please watch it in full (...) -- https://imgur.com/a/aowNnKg, https://imgur.com/a/eiLXrbk
13:38
php ffmpeg pipe multicast issue - cihan ranx Newest 'ffmpeg' Questions - Stack Overflow

I have four video in my server. I want to display all of them same page but video tag url is a php page. Actually it is working. But when i tried to open new tab again index.php then display only 2 video. When waiting to long display all of them. Why i must to waiting and why server take long time to response? I have ubuntu 20.04 and 8gb ram. If you copy link and open it multiple tab same time you will see the issue. Video Link is: index.php index.php (...) -- index.php
11:39
How to feed frames one by one and grab decoded frames using LibAV? - Alvan Rahimli Newest 'ffmpeg' Questions - Stack Overflow

I am integrating a third party system where I send a TCP packet to ask e.g. 5 frames from a live CCTV camera stream, and it sends those 5 frames one by one. Each package is h264 encoded frame, wrapped with some relevant data. I need to write a code using Libav where I can: Feed the frames one by one using AVIOContext (or smth similar). Grab decoded frame. Draw that to a window (Not relevant to the question, writing for context). I've been doing the same with GStreamer by creating a pipeline like this: AppSrc -> H264Parser -> H264Decoder -> (...)
10:21
ffmpeg with cuda and concat videos [closed] - Petr Šimůnek Newest 'ffmpeg' Questions - Stack Overflow

I have a ffmpeg command with nvidia hw support that I want to join two videos: /home/videotest/ffmpeg-dev/ffmpeg -benchmark -hide_banner -loglevel warning -y -hwaccel_device 0 -hwaccel cuda -hwaccel_output_format cuda -i /mnt/video-storage/test/cuda/surfing/intermediate1.mp4 -i /mnt/video-storage/test/cuda/surfing/intermediate2. mp4 -filter_complex 'hwupload_cuda,[0:v:0][0:a:0][1:v:0][1:a:0]concat=n=2:v=1:a=1 [outv] [outa]' -map [outv] -map [outa] -pix_fmt yuv420p -c:v h264_nvenc -preset p6 -profile: v high -force_key_frames 'expr:gte(t,n_forced*5)' -bf 0 (...)
11:00
Merge audio streams with ffmpeg in nodejs into one stream seamlessly? - Sefian Newest 'ffmpeg' Questions - Stack Overflow

I've been working on a music bot for DnD which we are using as our main source of music in Discord. Discord is not important as it accepts pretty much any stream. What i want to achieve:I want to have one stream playing music, and i want to have one other stream, that can dynamically load mp3 files, that could be played briefly in the middly of the music files. So.. basically a soundboard. I've seen discord do this with their soundpad feature, where it can seamlessly incorporate audio into others mic audio. How can one achieve that? I've tried using (...)
08:09
Transcoding/ Converting mpeg to h264 using ffmpeg h264_nvenc - Mustafa Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to transcode a video rendered by Davinci Resolve, using ffmpeg from mpeg4 to h264, on Ubuntu, using the following command. ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -i input.mov -c:a copy -c:v h264_nvenc -b:v 8M -preset 7 output-h264_nvenc-p7.mp4 -v verbose And my Nvidia card is NVIDIA GeForce GTX 1650. I'm gettting the following error: [mpeg4 ⓐ 0x55a893ed3200] Video width 3840 not within range from 48 to 2032 [mpeg4 ⓐ 0x55a893ed3200] Failed setup for format cuda: hwaccel initialisation returned error. And (...)

14 septembre

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

13:44
How to reduce latency in WebRTC streaming with ffmpeg [closed] - Artem Newest 'ffmpeg' Questions - Stack Overflow

I have a backend written in Go that captures the screen using ffmpeg and streams it to the frontend via WebRTC. The goal is to reduce the latency in the stream. For WebRTC, I'm using the pion library, and the H264 codec. The implementation is based on this example. I’m not including the ffmpeg command since the question is more about WebRTC. Based on the logs, ffmpeg starts sending data fairly quickly (within half a second), and these bytes are sent to WebRTC immediately. However, the video does not start playing right away. I added some debug messages, and I can see that (...) -- pion, example
20:02
how to generate video thumbnail in node.js? - paynestrike Newest 'ffmpeg' Questions - Stack Overflow

I am building an app with node.js, I successfully uploaded the video, but I need to generate a video thumbnail for it. Currently I use node exec to execute a system command of ffmpeg to make the thumbnail. exec("C:/ffmpeg/bin/ffmpeg -i Video/" + Name + " -ss 00:01:00.00 -r 1 -an -vframes 1 -f mjpeg Video/" + Name + ".jpg") This code is coming from a tutorial from http://net.tutsplus.com/tutorials/javascript-ajax/how-to-create-a-resumable-video-uploade-in-node-js/ the code above did generate a jpg file but it's not a thumbnail but (...) -- http://net.tutsplus.com/tutorials/javascript-ajax/how-to-create-a-resumable-video-uploade-in-node-js/
14:26
Text backdrop by ass formatting - Armen Sanoyan Newest 'ffmpeg' Questions - Stack Overflow

I want to add box behind a word using ass subtitles formatting. The box should have border radius. the ass file later will be used by ffmpeg. I have tried the BorderStyle=3 form stack ansers 1, 2 both of them do not provide a way to get rounded boxes. Also the BorderStyle=4 didn't work for me. In comments of last stack answer I found a possible reason that my libraries can be old, but anyway it doesn't seem that BorderStyle=4 will solve my problem of border radius. There is another way to achieve rounded box link to answer. I didn't figure it out how to install all the (...)
14:20
How to extract the 1st frame and restore as an image with ffmpeg? - lex Newest 'ffmpeg' Questions - Stack Overflow

Anyone knows the trick? And how to install ffmpeg ? yum install mpeg only returns this: ======================================================================================== Matched: mpeg ======================================================================================== libiec61883.i386 : Streaming library for IEEE1394 libiec61883.x86_64 : Streaming library for IEEE1394 qffmpeg-devel.i386 : Development package for qffmpeg qffmpeg-devel.x86_64 : Development package for qffmpeg qffmpeg-libs.i386 : Libraries for qffmpeg qffmpeg-libs.x86_64 (...)
03:47
How to merge two audio files and remove their overlap [closed] - jackiechan Zebra Newest 'ffmpeg' Questions - Stack Overflow

I have two mp3 files, there have some overlap. The last few seconds, normally less than 2 second, of the first file are always appear on the first few seconds of the last file. How can I conbine the two audio files into one and eliminate the overlap part? Currently, audio files are mp3. Expecting a python lib. I know FFMPEG may work, but I have no experience. Other programming languages solution are also fine. Give me some keywords and I hope I can do the (...)
07:52
How to concatenate two MP4 files using FFmpeg? [closed] - Mark L Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to concatenate two mp4 files using ffmpeg. I need this to be an automatic process hence why I chose ffmpeg. I'm converting the two files into .ts files and then concatenating them and then trying to encode that concatenated .ts file. The files are h264 and aac encoded and I'm hoping to keep the quality the same or as close to original as possible. ffmpeg -i part1.mp4 -vcodec copy -vbsf h264_mp4toannexb -acodec copy part1.ts ffmpeg -i part2.mp4 -vcodec copy -vbsf h264_mp4toannexb -acodec copy part2.ts cat part1.ts part2.ts > parts.ts ffmpeg -y -i (...)
06:27
ffmpeg error while converting flv video to mp4 [closed] - Giorgos Betsos Newest 'ffmpeg' Questions - Stack Overflow

I am trying to convert flv video to mp4 using ffmpeg. Command I executed: ffmpeg -i input.flv -c:v libx264 output.mp4 I get below error: [flv ⓐ 0xaaab0f4ec060] Packet mismatch 1703445535 198421 198574 [flv ⓐ0xaaab0f4ec060] Could not find codec parameters for stream 0 (Video: h264, none): unspecified size Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options Input #0, flv, from 'input.flv': Duration: 00:00:07.12, start: 0.000000, bitrate: 16070 kb/s (...) -- FLV-Media-Player
07:11
How to Record Video of a Dynamic Div Containing Multiple Media Elements in React Konva? - Humayoun Saeed Newest 'ffmpeg' Questions - Stack Overflow

I'm working on a React application where I need to record a video of a specific div with the class name "layout." This div contains multiple media elements (such as images and videos) that are dynamically rendered inside divisions. I've tried several approaches, including using MediaRecorder, canvas-based recording with html2canvas, RecordRTC, and even ffmpeg, but none seem to capture the entire div along with its dynamic content effectively. What would be the best approach to achieve this? How can I record a video of this dynamically rendered div including all its media (...)
00:02
Compiling ffmpeg for IOS (R_ABS reloc error) - Oliver Hume Newest 'ffmpeg' Questions - Stack Overflow

I've been trying to compile the ffmpeg libraries for IOS. I can get it to work if I use --disable-asm, but for performance I'd like to build with them enabled. This is one of many configure commands I've used. ./configure --prefix=armv7 --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --enable-avresample --enable-cross-compile --sysroot="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk" --target-os=darwin (...)

13 septembre

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

18:42
How can we achieve textAlign="center" within box in case of multiline text using ffmpeg drawtext? [closed] - Ata MuhiUlDin Newest 'ffmpeg' Questions - Stack Overflow

When working with drawtext in ffmpeg, it allows to enable box to show behind the text, and also allows to assign some background color to it. But when it comes to multiline text, let's say there are three lines as shown in picture as current result: It never align text to center. But I want results like shown below: This time am using following ffmpeg command to draw text: vf "drawtext=text='$text': x=((w*$x)/$DIMENSIONS.width): y=((h*$y)/$DIMENSIONS.height):fontsize=36:fontcolor=yellowⓐ0.9: box=1: boxcolor=blackⓐ0.6:boxborderw=20" -c:a (...) -- ,
14:10
How to stop ffmpeg from manipulating mp3 metadata? - he rambled Newest 'ffmpeg' Questions - Stack Overflow

I'm using ffmpeg to change bitrate of my mp3 files. It works well, but one thing is very frustrating. ffmpeg automatically changes some of metadata fields. Specifically it converts ID3v2.3 to ID3v2.4, and it does it incorrectly. For example, it writes TYER field that actually does not exist in ID3v2.4. But the most frustrating thing is, it converts USLT field to lyrics-LANGCODE(like lyrics-eng). Most of music players does not recognise this tag! I don't want ffmpeg to mess up with metadata fields. I just want it to change bitrate. Is there anyway to tell (...)
14:06
PHP/ffmpeg (Windows 7): - Permission Denied. Tried everything, but still doesn't work - user365465 Newest 'ffmpeg' Questions - Stack Overflow

I have a command-line PHP script that, when given the folder name as an argument when executing the script, will find all images in said folder and resize them using FFmpeg. Problem is, I always get a Permission Denied error in FFmpeg when it attempts to get at the files within the folder. This is while being on Windows 7. The big problem is that I've tried every solution that keeps popping up on the interwebs when I search for how to fix it. I've changed the settings in Avast!, did the attrib command (both as normal and "Run as Administrator") to unmark as read-only, (...)
09:20
Find frames in the video that are similar to the static image, to crop the video - Nguyen Van Kufu Newest 'ffmpeg' Questions - Stack Overflow

I use opencv with ffmpeg to cut the video. Specifically, find the frame in the video that is the same as the picture, then cut the video at the time the video frame is the same as the picture. I found the code on google and edited it according to my needs, but when it comes to comparing frames and still images, I don't know how to ask you to add a comparison section to cut the video. import numpy as np import cv2 import time from skimage.metrics import structural_similarity as compare_ssim hinh = cv2.imread("f:\\\\x.png") hinh1 = cv2.resize(hinh, (500, (...)

12 septembre

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

19:55
Can't find error in function for changing sampling rate [closed] - leeeeeeeeess Newest 'ffmpeg' Questions - Stack Overflow

I have function for changing sampling rate of audio (only one channel): int change_sampling_rate(float *audio_input, int input_sample_rate, int output_sample_rate, int input_num_of_samples, float **audio_output, int *result_num_of_samples) When I run tests on time lag between two files (mp3) with different sampling rates, it gives answer that differs on about 15-20 ms with right answer. Can anybody, please, help me find mistakes in the code? For example, I have two audios: [audio_1] (https://jmp.sh/s/USFPaGnHXVuKFVYarYpm) and [audio_2] (...) -- https://jmp.sh/s/USFPaGnHXVuKFVYarYpm, https://jmp.sh/s/jbmWbPTwkdDujAocmi56
19:01
Streaming issues with HLS setup using Nginx and FFmpeg, and TS video files - Jacob Anderson Newest 'ffmpeg' Questions - Stack Overflow

I've been working on setting up an HLS stream on my Raspberry Pi to broadcast video from a security camera that's physically connected to my Raspberry Pi through my web server, making it accessible via my website. The .ts video files and the .m3u8 playlist are correctly being served from /var/www/html/hls. However, when I attempt to load the stream on Safari (as well as other browsers), the video continuously appears to be loading without ever displaying any content. Here are some details about my setup: Camera: I am using an Arducam 1080p Day & Night Vision (...) -- Arducam 1080p Day & Night Vision USB Camera
13:26
Convert raw PCM data to OGG format using FFmpeg? - Chris P Newest 'ffmpeg' Questions - Stack Overflow

AudioSegment AudioSegment::from_file(const std::string& file_path, const std::string& format, const std::string& codec, const std::map& parameters, int start_second, int duration) avformat_network_init(); av_log_set_level(AV_LOG_ERROR); AVFormatContext* format_ctx = nullptr; if (avformat_open_input(&format_ctx, file_path.c_str(), nullptr, nullptr) != 0) std::cerr << "Error: Could not open audio file." << std::endl; return AudioSegment(); if (avformat_find_stream_info(format_ctx, nullptr) < 0) (...)
12:40
C++ - ffmpeg - convert raw pcm data to ogg format - Chris P Newest 'ffmpeg' Questions - Stack Overflow

AudioSegment AudioSegment::from_file(const std::string& file_path, const std::string& format, const std::string& codec, const std::map& parameters, int start_second, int duration) avformat_network_init(); av_log_set_level(AV_LOG_ERROR); AVFormatContext* format_ctx = nullptr; if (avformat_open_input(&format_ctx, file_path.c_str(), nullptr, nullptr) != 0) std::cerr << "Error: Could not open audio file." << std::endl; return AudioSegment(); if (avformat_find_stream_info(format_ctx, nullptr) < 0) (...)
02:20
How does wrap_unicode option work when ffmpeg renders subtitles - Bazinga Newest 'ffmpeg' Questions - Stack Overflow

This is my complete command, which accepts the wrap_unicode option, but the option is not working '/usr/local/ffmpeg/bin/ffmpeg' '-y' '-i' 'input.mp4' '-threads' '12' '-vcodec' 'libx264' '-acodec' 'aac' '-b:v' '1000k' '-refs' '6' '-coder' '1' '-sc_threshold' '40' '-flags' '+loop' '-me_range' '16' '-subq' '7' '-i_qfactor' (...)

11 septembre

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

20:50
Compiling live555 and ffmpeg with Xcode 5 - Kai Newest 'ffmpeg' Questions - Stack Overflow

In my current project we need to use both live555 and ffmpeg libraries in the same project. We are able to build and run sample for both projects without issues, but when merging both projects into the project the following compiler errors were encountered: Undefined symbols for architecture armv7: "av_free_packet(AVPacket*)", referenced from: -[MyRtspClient readFFmpegAudioFrameAndDecode] in MyRtspClient.o "av_read_frame(AVFormatContext*, AVPacket*)", referenced from: -[MyRtspClient readFFmpegAudioFrameAndDecode] in MyRtspClient.o "av_strerror(int, char*, (...)
15:12
ffmpeg: Distorted metallic noise when processing audio on MacOs [closed] - Xavi Newest 'ffmpeg' Questions - Stack Overflow

I am trying to write a very basic microphone recorder using ffmpeg, that reads packets from an input device and writes them to a file. It always works on Windows but on MacOs I have an issue when using any of my microphones other than the internal MacBook one: the sound comes back metallic and distorted. The only difference I see between the microphones is that all are stereo but the internal one, which is mono. As I am directly writing what I'm reading to a file, I suspect the issue is with the input configuration, but I can't figure it out. What am I doing wrong? (...)
07:49
Change order of codecs that ffmpeg will attempt [closed] - Martin Rauscher Newest 'ffmpeg' Questions - Stack Overflow

TBH this might be a bug since I cannot see why this would be designed behavior: I'm converting user-submitted videos to png thumbnails with this command. ffmpeg $codec -xerror -ss 1 -t 0.05 -i "$1" -update 1 -frames:v 1 -vf "scale=-1:256" -y "thumb.png" This works great when there is no transparency involved, but when it is I get PNGs with black (or green, whatever the non-transparent component is) background. I need to manually select the input codec for VP8 (alpha_mode=1), VP9, and fallback (seems to use vp8 (native)) like this to fix it for codec in "-vcodec (...)
14:38
first audio lost when using ffmpeg to overlay one mp4 on top of a big mp4 - James Hao Newest 'ffmpeg' Questions - Stack Overflow

I searched a lot (including chatgtp and google), and tried a lot of methods, not work. below is my ffmpeg command line on windows 10: ffmpeg -i video.mp4 -i b-.mp4 -filter_complex "[0:v]setpts=PTS-STARTPTS[b1];[1:v]scale=300:-1,setpts=PTS-STARTPTS+0.0/TB[top];[b1][top]overlay=x=50:y=50:enable='between(t\\,0.0,5)'[outv];[1:a]adelay=0|0[a1]; [0:a][a1]amerge=inputs=2[outa]" -map "[outv]" -map "[outa]" -pix_fmt yuv420p -c:a aac -ac 2 -c:v libx264 -crf 18 final_video6.mp4 two mp4 files, b-.mp4 should be on top of video.mp4 and play from 0th second and scale to (...) -- enter link description here
11:23
How do you pipe video from one tool to another on Raspberry Pi? [closed] - Spenser Spratlin Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to pipe video from libcamera to ffmpeg to get a consistent video stream from a Pi Camera Module 2 to a Java Program I'm using the following OpenJDK/JRE 17 Raspberry Pi 5 Model B Debian 12 (bookworm) Arm64 Since Raspberry Pi changed their video framework, you can no longer call a single /dev/video0 device. You have to go through the Media Controller using libcamera or rpicam. I'm wondering how I can pipe the video created from libcamera or rpicam into a useable format to intake with (...)
09:40
Unknown encoder 'h264_videotoolbox' - Ahsanur Rahman Newest 'ffmpeg' Questions - Stack Overflow

I'm facing an issue with FFmpeg on my iOS app. When I use the mobile-ffmpeg-full-gpl pod, hardware-accelerated video encoding with h264_videotoolbox works perfectly. But, when I try to use a prebuilt FFmpeg binary, I receive the following error: Unknown encoder 'h264_videotoolbox' I have created a build script to compile FFmpeg for iOS with VideoToolbox support. Here’s a portion of my configure command: ./configure \\ --cross-prefix="$HOST-" \\ --sysroot="$SDK_PATH" \\ --prefix="$FFMPEG_LIBRARY_PATH" \\ --pkg-config="$HOST_PKG_CONFIG_PATH" (...)

10 septembre

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

20:25
ffprobe - getting file info from pipe - Andrey Baryshnikov Newest 'ffmpeg' Questions - Stack Overflow

I've got an oog file (it was mixed by sox from two audiostreams recorded by pbx Asterisk) and I'm trying to get file information with ffprobe. When I use something like cat %filename%.ogg | ffprobe -i - I get invalid file info (Duration : N/A, wrong bitrate and etc.) When I try ffprobe -i %filename% Everything works fine and I get file info. What could be wrong? File content?
20:00
SPM binary target with additional frameworks not being included - Darren Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to integrate a binaryTarget into an SPM package. The binary has additional frameworks included, but for some reason they are not being copied over to an app when compiled. This results in dyld[85157]: Library not loaded: ⓐrpath errors. This is my Package.swift file: // swift-tools-version: 5.10 import PackageDescription let package = Package( name: "converter", platforms: [ .macOS(.v13), .iOS(.v14), ], products: [ .library( name: "converter", targets: ["converter"]) ], targets: [ (...)
19:32
How to reduce fps to reduce filesize using ffmpeg? - Asas Newest 'ffmpeg' Questions - Stack Overflow

I recorded the video in waaaay to high of fps and its like over 100 gb now, i dont want any quality degradation just to lower the fps to a reasonable 60 but when i googled i got the result which converted my video but the size is the same for some reason I tried ffmpeg -y -i input_video.mp4 -c copy -f h264 output_raw_bitstream.h264 ffmpeg -y -i input_video.mp4 -vn -acodec copy output_audio.aac ffmpeg -y -r 24 -i output_raw_bitstream.h264 -i output_audio.aac -c copy output.mp4 but replaced numbers and names for what is in my case but it outputs the same 100 plus (...)
16:09
How to download .m3u8 in once time - Nabi K.A.Z. Newest 'ffmpeg' Questions - Stack Overflow

I have a .m3u8 file on remote host, with contain fixed numbers of chunk .ts file name, and not stream: #EXTM3U #EXT-X-VERSION:3 #EXT-X-TARGETDURATION:11 #EXT-X-MEDIA-SEQUENCE:0 #EXTINF:9.736, media_0.ts #EXTINF:9.96, media_1.ts #EXTINF:10.0, media_2.ts #EXTINF:10.0, media_3.ts #EXTINF:10.0, media_4.ts #EXTINF:10.2, media_5.ts #EXTINF:10.0, When I use this command: # ffmpeg -i "http://example.com/chunklist.m3u8" file.mp4 frame= 582 fps=9.4 q=28.0 size= 1536kB time=00:00:23.21 bitrate= (...) -- http://example.com/media_0.ts, http://example.com/media_1.ts, ffmpeg
14:48
ffmpeg transcoding: Metallic distorsion on macOS - Xavi Newest 'ffmpeg' Questions - Stack Overflow

I am following ffmpeg's transcoding.c example to record audio and video from my input devices into an mp4 output file with H264 and AAC as codecs. I have no issues with the video and the audio transcoding works correctly on Windows. However, on macOS I have an issue with any input device other than the internal microphone of my laptop: the audio comes out distorted and sounding noisy and metallic (sample recording claps: https://file.io/nEn8MXHUAUQ2). I went through the input and output parameters for the filter several times, checked the values, but there must be something (...) -- transcoding.c, https://file.io/nEn8MXHUAUQ2
12:00
how i can save overlay text box with a video in gallery by using ffmpeg? - Umair Manzoor Newest 'ffmpeg' Questions - Stack Overflow

final escapedOverlayText = overlayText.replaceAll(''', '\\''); final command = '-i $videoPath -vf "drawtext=text='$escapedOverlayText':x=10:y=10:fontsize=24:fontcolor=white" -c:a copy $outputPath'; print('Executing command: $command'); final session = await FFmpegKit.execute(command); final returnCode = await session.getReturnCode(); print('here is errror Return code: $returnCode'); that those section of code where this ffmpeg returns the following error I/flutter ( 6329): (...)
11:05
Is there a Python Library to extract video metadata such as [Title, Description, Caption/Subtitles]? - SingularitySG Newest 'ffmpeg' Questions - Stack Overflow

I'm currently trying to find python libraries that can assist me in extracting metadata or information from video files such as [mp4, Mkv, Avi, WebM, mpg] formats for example. The main data that I'm focusing on extracting from the video files are mostly the [Title, Description, Comment, Captions/Subtitles]. I've tried using FFmpeg-python following this guide: https://www.thepythoncode.com/article/extract-media-metadata-in-python and Tinytag, (...) -- https://www.thepythoncode.com/article/extract-media-metadata-in-python, https://www.geeksforgeeks.org/access-metadata-of-various-audio-and-video-file-formats-using-python-tinytag-library/

9 septembre

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

20:30
Low latency rendering pipeline Implementation [closed] - Makis Christou Newest 'ffmpeg' Questions - Stack Overflow

The goal that I am trying to accomplish is to be able to render small/per-compressed (ffmpeg and wrapping it in a flask api using Python (I use the ffmpeg-python module). The api has 2 routes. An upload route and a render route. So some other service first uploads their background video (which will be reused) and then use the render route to choose a different config, on demand, to render on top of their background video. Currently an average video takes 0.4s (on a 7950x 128GB RAM) to be rendered and the whole request including I/O, starting ffmpeg, reading assets from SSD and (...)
20:25
execute ffmpeg -version hit error by NodeJS but not with docker - CataCaster Newest 'ffmpeg' Questions - Stack Overflow

The background is that I am using puppeteer.screencast to record screen. puppeteer.screencast requires you to install ffmpeg as a dependency. I was requested to only install ffmpeg for lambda container but not for lambda. Therefore, when I try to screencast, I need to first check if ffmpeg is installed in the system. We use dockerfile to set up environment lambda container, and I added a check RUN ffmpeg -version after the installation, and this did not hit an error. However, when I was trying to also check if ffmpeg is installed in Node, i use the code exec(command, (...)
16:51
ffmpeg to make black video with multiple audio and subtitles [closed] - Tony M Newest 'ffmpeg' Questions - Stack Overflow

I want to use ffmpeg to make a video with only audio and subtitles in different languages. The video part can be a simple black background. I want to be able to switch between languages in video players like QuickTime. I've tried to get help from posts like this, but I couldn't figure out how to get it to work. To demonstrate that I've worked a long time on this, I'm showing what I've come up with below -- but only steps (1) & (2) work. I can't get the subtitles step (3) to work. I've used ffmpeg for a long time, but never really (...)
11:59
Multiple trims to a video using ffmpeg generating video with shorter duration than expected [closed] - Gerardo Newest 'ffmpeg' Questions - Stack Overflow

I have an application that given a video it trims multiple parts of that video using ffmpeg. Each part is cropped, scaled and then concatenated to generate a single video. To share an example, I have a video of 1 minute and 44 seconds of duration and 60 fps. My goal is to trim 3 parts of the video: First one between seconds 0 to 44.666 Second one between seconds 44.666 to 74.349 Third one between seconds 74.349 to 103.985 The ffmpeg command I use to achieve that is the following one: ffmpeg -y -hide_banner -i bg_720_1280.png -i error.mp4 -filter_complex (...) -- video, static ffmpeg builds
14:59
C++ ffmpeg - export to wav error: Invalid PCM packet, data has size 2 but at least a size of 4 was expected - Chris P Newest 'ffmpeg' Questions - Stack Overflow

C++ code: AudioSegment AudioSegment::from_file(const std::string& file_path, const std::string& format, const std::string& codec, const std::map& parameters, int start_second, int duration) avformat_network_init(); av_log_set_level(AV_LOG_ERROR); // Adjust logging level as needed AVFormatContext* format_ctx = nullptr; if (avformat_open_input(&format_ctx, file_path.c_str(), nullptr, nullptr) != 0) std::cerr << "Error: Could not open audio file." << std::endl; return AudioSegment(); // Return an (...)
13:35
Error loading FFmpeg: ReferenceError: SharedArrayBuffer is not defined - Angular 18.2.3 - Memariya Chirag Newest 'ffmpeg' Questions - Stack Overflow

Question: I am working on an Angular project (version 18.2.3) where I use ffmpeg.wasm to trim videos and extract frames. However, when trying to load FFmpeg, I am encountering the following error in the console: Error loading FFmpeg: ReferenceError: SharedArrayBuffer is not definedenter image description here Below is the code that initializes FFmpeg and attempts to load it: export class VideoEditorComponent implements OnInit ffmpeg = createFFmpeg( log: true ); isPlaying = false; frameDataArray: Uint8Array[] = []; frameIndex = 0; (...)
12:31
ffmpeg remote url not working in lambda function - Komal Newest 'ffmpeg' Questions - Stack Overflow

I have created lambda function to trim video. I run this command: /opt/bin/ffmpeg -protocol_whitelist file,http,https,tcp,tls -i 'https://source-bucket.s3.amazonaws.com/1.mp4' -ss 5 -t 10 -loglevel 48 -y -avoid_negative_ts 1 -acodec copy /tmp/output.mp4 It gives following output: "ffmpeg version 7.0.2-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2024 the FFmpeg developers\\n built with gcc 8 (Debian 8.3.0-6)\\n configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio (...) --
13:35
Correct syntax for using ffmpeg CUDA to crop and scale videos [closed] - Stuart Newest 'ffmpeg' Questions - Stack Overflow

My NVIDIA and FFMPEG configuration is as follows: Linux TestBox1 6.8.0-41-generic #41-Ubuntu SMP PREEMPT_DYNAMIC Fri Aug 2 20:41:06 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux NVIDIA-Linux-x86_64-560.31.02 ffmpeg version git-2024-08-19-507c2a577 encoders: V....D av1_nvenc NVIDIA NVENC av1 encoder (codec av1) V....D h264_nvenc NVIDIA NVENC H.264 encoder (codec h264) V....D hevc_nvenc NVIDIA NVENC hevc encoder (codec hevc) decoders: V..... av1_cuvid Nvidia CUVID AV1 decoder (codec av1) V..... h264_cuvid Nvidia CUVID H264 decoder (codec h264) (...)
11:38
How to read remote video on Amazon S3 using ffmpeg - virtualize Newest 'ffmpeg' Questions - Stack Overflow

I need to create poster frames from videos hosted on Amazon S3 via ffmpeg. So is there a way to use the remote video file directly in ffmpeg command line like this: ffmpeg -i "http://bucket.s3.amazonaws.com/video.mp4" -ss 00:00:10 -vframes 1 -f image2 "image%03d.jpg" ffmpeg just returns: http://bucket.s3.amazonaws.com/video.mp4: I/O error occurred Usually that means that input file is truncated and/or corrupted. I also tried forcing ffmpeg to use the videos mp4 container for reading: ffmpeg -f mp4 -i (...)
09:56
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
08:17
FFMPEG - Not finding codec parameters - Tanner Smith Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to convert a sequence of images into a mpeg movie via FFMPEG, although I keep getting an error saying that it could not find the code parameters (Video: mjpeg). A Google search did not bring much up that was useful. ffmpeg -f image2 -i /tmp/img%03d.jpg video.mpgFFmpeg version SVN-r0.5.1-4:0.5.1-1ubuntu1, Copyright (c) 2000-2009 Fabrice Bellard, et al. configuration: --extra-version=4:0.5.1-1ubuntu1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex (...)
07:08
Feed avcodec_encode_video2 more frames than the desired output framerate [closed] - muniategui Newest 'ffmpeg' Questions - Stack Overflow

I am capturing frames at a variable rate and sending them after getting encoded in a livestream (low latency configuration). The send stream is the raw H264 without encapsulating it in any media container. The input/captured frames goes from 60 fps to 70-75 fps. These frames are feed directly to avcodec_encode_video2, with the context configured to: c->time_base.num=1; c->time_base.den=60; c->framerate.num=60; c->framerate.den=1; The expected behavior of the encoder would be to get got_packet_ptr = 0 as output of avcodec_encode_video2 multiple times when the (...)

8 septembre

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

19:50
How to use FFMPEG to convert mp4 to gif within a target file size? [closed] - DavidNyan10 Newest 'ffmpeg' Questions - Stack Overflow

I've seen many ffmpeg questions asking about compressing an mp4 to an mp4 but not to a gif. I have an input.mp4 (12mb) that I would like to convert to output.gif whose result is 14mb using the normal conversion. I want it to be the best quality (both resolution and frame rate) under 10mb. How can I do that? Something like ffmpeg -i input.mp4 --target-size=10mb output.gif? I'm on Windows by the way.
14:02
ffmpeg, stretch audio to x seconds - Max Doumit Newest 'ffmpeg' Questions - Stack Overflow

I am trying to make an audio file be exactly x second. So far i tried using the atempo filter by doing the following calculation Audio length / desired length = atempo. But this is not accurate, and I am having to tweak the tempo manually to get it to an exact fit. Are there any other solutions to get this work ? Or am I doing this incorrectly? My original file is a wav file, and my output in an mp3 Here is a sample command ffmpeg -i input.wav -codec:a libmp3lame -filter:a "atempo=0.9992323" -b:a 320K output.mp3 UPDATE: I was able to (...)
14:00
FFmpeg.AutoGen C# library Can't open Codec G726 - Rushdi Eskandar Newest 'ffmpeg' Questions - Stack Overflow

I am stuck with FFmpeg.AutoGen G726 Audio codec, it always shows error invalid argument. Note that I Tried other codecs such as G722, G711 and it is working fine except for G726 codec. I also confirm that my binaries does support G726 codec using this command ffmpeg -formats. Please tell me what could be the reason, and if you know any other library for decoding G726 that would be better public unsafe class AudioDecoder : IDisposable private AVCodecContext* _codecContext; private AVCodec* _codec; private AVFrame* _frame; private AVPacket* (...)

7 septembre

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

16:14
ffmpeg change audio encoding and combine audio files - Simon Newest 'ffmpeg' Questions - Stack Overflow

I asked a question about combining linear16 encoded audio files together here - Combine linear16 encoded audio files | PHP I was suggested to use ffmpeg, I'm new with it, any suggestion how to combine LINEAR16 encoded audio files? ... $client = new TextToSpeechClient(); $synthesisInputText = new SynthesisInput(); $audioConfig = new AudioConfig(); // $audioConfig->setAudioEncoding(AudioEncoding::MP3); works fine $audioConfig->setAudioEncoding(AudioEncoding::LINEAR16); $voice = new (...) -- https://storage.googleapis.com/gspeech-audio-storage/gspeech_en-US:6:D:1:0_5c021edd23218122a7ce116cb297bc91_5be04f8b55b1b28025ad6eea55109e83.mp3
17:32
The problem with pydub.AudioSegment.from_file (ffmpeg) - akkoolda Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to make a normal voice recording discord. When I try to convert an Audio Data object, an error occurs. I've already tried everything I can, I can't solve the problem. Here is the code, the error occurs in the seg variable: async def once_done(sink: discord.sinks.MP3Sink, channel: discord.TextChannel, *args): words_list = [] audio_segs: list[pydub.AudioSegment] = [] longest = pydub.AudioSegment.empty() files: list[discord.File] = [] for user_id, audio in sink.audio_data.items(): try: payload: FileSource = (...)
14:35
ffmpeg-next potential bug in write_header causes timebase to bet set to Rational(1/15360) - Huhngut Newest 'ffmpeg' Questions - Stack Overflow

I am trying to encode a video using the ffmpeg_next crate. I got everything working and it successfully creates an output video. The only problem is that the time_base of my stream is wrongly written to the file. I can confirm that I set the timebase correctly for both the encoder as well as the stream. By debug prints I was able to narrow the problem down. octx.write_header().unwrap(); causes the stream timebase to be reset from Rational(1/30) to Rational(1/15360). Changing the timebase back afterwards has no effect. The wrong value must have been written to the header. (...) -- ffmpeg_next
14:01
Recorded Video Ending Prematurely with WebSocket and FFmpeg - Zaid Newest 'ffmpeg' Questions - Stack Overflow

I am working on a screen recording application where it allows users to record their screen and I use websocket to send their bytes data in real time to my FastAPI Python server. The bytes are sent every 2 second and I use FFmpeg to keep saving the bytes in the output MP4 video file. Problem: Everything was working fine when I had the server running on my local machine, however, I just deployed the server to EC2 instance us-ease-1 and when I try to record the videos, the videos are really short, IE, if I record a 30 second video, it only has the video for 3 second. Sometimes it saves (...) --
11:52
Audio offset get wrong after some time when streaming audios - Antoine Grenard Newest 'ffmpeg' Questions - Stack Overflow

I use microsoft-cognitiveservices-speech-sdk (1.38.0) in order to do real time speech to text. It seems like the offset is right when I send a full audio but it is wrong when I send it cut in a lot of audio chunks. The more there is audio chunks the more inaccurate the offset is : No chunks : 1 726 300 000 369 chunks of 0.5 seconds : 1 729 600 000 923 chunks of 0.2 seconds : 1 744 600 000 1443 chunks of 0.1 seconds : 1 757 900 000 To reproduce here is some piece of code : const speechConfig = SpeechConfig.fromSubscription(, (...) -- https://drive.google.com/file/d/1H_RJuqMiBaVkpo9XHrgp1bpuFdgQl64O/view?usp=sharing
07:13
FFmpeg drawtext filter error: "Cannot find a valid font for the family Sans" - fatdrogen Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to add text overlay to a video using FFmpeg's drawtext filter in my iOS app, but I'm encountering the following error: error: Cannot load default config file ERROR: Cannot find a valid font for the family Sans ERROR: Error initializing filter 'drawtext' ERROR: with args 'text=write some thing :' Here's the relevant part of my FFmpeg command: Copydrawtext=text='write some thing ' Questions: What's causing this error, and how can I resolve it? Is there a way to specify a font (...)

6 septembre

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

14:21
How to reinsert edited metadata stream information from the FFMETADATAFILE file? [closed] - SENYCH Newest 'ffmpeg' Questions - Stack Overflow

I'm working on simplifying and speeding up the process of editing video metadata for user convenience. I've successfully edited metadata streams using console commands, such as: ffmpeg -i INPUT.mp4 -map 0 -metadata:s:0 "handler_name=An other video" -metadata:s:1 "handler_name=An other audio recording in russian" -metadata:s:2 "handler_name=An other audio recording in english" -metadata:s:3 "handler_name=An other audio recording in japanese" -c copy OUTPUT.mp4 However, I'd like to accomplish this through a ffmetadata file. Here's the approach I've (...)
18:34
React-Native FFmpeg-kit VideoCompress command not working - Brian Newest 'ffmpeg' Questions - Stack Overflow

I'm Using FFmpeg-kit's React-Native Kit And I want to encode H264 to HEVC. But the Videotoolbox in ios not working I use "ffmpeg-kit-react-native": "^6.0.2" And here is my Code // hevc_videotoolbox await FFmpegKit.execute(`-i $videoUri -c:v hevc_videotoolbox -c:a aac -tag:v hvc1 -movflags +faststart -y $outputUri`); else await FFmpegKit.execute(`-i $videoUri -c:v hevc_omx -c:a aac -tag:v hvc1 -movflags +faststart -y $outputUri`); But I got the error follwed like this LOG libavutil 58. 2.100 / 58. 2.100 (...) -- FFmpeg-kit, React-Native Kit
16:25
why can't I access rtsp camera in python? - Come Oh Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to access an RTSP camera in Python and get frame information from it. One of the camera options is RTSP authentication, and when I include it, VLC asks for login information. ('[rtsp ⓐ ] method DESCRIBE failed: 401 Unauthorized') If I turn it off, I can access it regardless of ID or PW, but if I turn it on, I can't access it from Python. I verified that it works by putting the same RTSP address, ID, and PW in VLC, and it doesn't contain any symbols like 'ⓐ' which is a common problem. I used several libraries, including (...)
12:01
apache caught SIGWINCH, shutting down gracefully - damii1 Newest 'ffmpeg' Questions - Stack Overflow

I need your help please. This is what happening: I'm trying to generate a video thanks to ffmpeg. To do so I have a directory where I put the medias (video and images) I want to put on my final video. Then once my files ready to be used (right bitrate, resolution, and so on...), I call a python script that generates the ffmpeg code to produce my video. The python script is called from my php script with the escapeshellcmd command. Problem is my apache server keeps crashing each time I try to produce a video. In the error log I see (...)
10:23
why can't access rtsp camera in python? - Come Oh Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to access an RTSP camera in Python and get frame information from it. One of the camera options is RTSP authentication, and when I include it, VLC asks for login information. ('[rtsp ⓐ ] method DESCRIBE failed: 401 Unauthorized') If I turn it off, I can access it regardless of ID or PW, but if I turn it on, I can't access it from Python. I verified that it works by putting the same RTSP address, ID, and PW in VLC, and it doesn't contain any symbols like 'ⓐ' which is a common problem. I used several libraries, including (...)
09:06
Write buffer to ffmpeg stdin and send websocket message after that - alpecca Newest 'ffmpeg' Questions - Stack Overflow

I am working on a streaming application in which user can stream videos in real time to my server usig websocket and media recorder. I have written my backend code using fastapi python and I setup a websocket endpoint that would receive buffer data from the frontend every two second. But the problem I am facing is here :- process.stdin.write(data) await websocket.send_json Here the code ffmpeg process write could take some time to take a buffer and write a mp4 for it, but the websocket send json won't wait for it and thus just send the message back to the client, (...)
08:02
Getting "TypeError: must be real number, not NoneType" whenever trying to run write_videofile to a clip in moviepy - Sato Newest 'ffmpeg' Questions - Stack Overflow

Example code: from moviepy.editor import * clip = VideoFileClip('video.mp4') clip.write_videofile('video2.mp4', fps=30) After showing the following messages, showing that the video is being built and written, Moviepy - Building video video2.mp4. Moviepy - Writing video video2.mp4 The following error message occurs: Traceback (most recent call last): File "", line 1, in File "C:\\Users\\User\\Anaconda3\\lib\\site-packages\\decorator.py", line 232, in fun return caller(func, *(extras + args), **kw) File (...)
08:01
Render a small video with low delay - Makis Christou Newest 'ffmpeg' Questions - Stack Overflow

So I have a problem where I need to be able to render a (3s, 180 frame) video on demand and delay is important. I know that video rendering scales linearly but for some reason when using a threadpool in python (moviepy) it doesn't scale linearly at all and the CPU is underutilized. This is how I do it atm: start_time = time.time() # Start timing the frame processing # Process frames in parallel using a persistent thread pool processed_frames = [] with ThreadPoolExecutor(max_workers=num_threads) as executor: future_to_chunk = (...)
04:36
ffmpeg invalid pts <= last "Error submitting frame to the encoder" - ludog Newest 'ffmpeg' Questions - Stack Overflow

I'm using this command to extract keyframes from long videos (full movies). ffmpeg -i data/full_videos/pleasantville_1998.mp4 -filter:v "select='gt(scene,0.1)',showinfo" -vsync 0 frames/%05d.jpg For most videos this works fine, and it prints a line to stderr for each frame extracted, but sometimes it prints a couple of such lines and then errors with the output [mjpeg ⓐ 0x6492f1e8a3c0] Invalid pts (3883) <= last (3883) [vost#0:0/mjpeg ⓐ 0x6492f213e6c0] Error submitting video frame to the encoder [vost#0:0/mjpeg ⓐ 0x6492f213e6c0] Error encoding (...)

5 septembre

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

18:17
Ffmpeg run in background and can't be stopped [closed] - user27207735 Newest 'ffmpeg' Questions - Stack Overflow

Why does ffmpeg run these services even when I'm not running anything that uses ffmpeg? And when I turn those services off, it starts again. Can someone tell me how to stop those services and remove them completely? OS: Ubuntu 24.04 LTS htop image What I have tried: kill these processes check startup for anything related to ffmpeg -- htop image
19:24
Extracting Frames with Original Timestamp with ffmpeg [closed] - EliseFeu Newest 'ffmpeg' Questions - Stack Overflow

How can I extract a frame from a video and copy the original timestamp. I understand that in the metadata the date of the file creation is accurately reflected when the frame is extracted. But is there a way to include the timestamp of the original video file as well? I used the following command on MacOS to extract frames from a video: ffmpeg -i input.mov %04d.png
23:08
Getting the file name of downloaded video using yt-dlp - LT_Orange Newest 'ffmpeg' Questions - Stack Overflow

I'm intending to use yt-dlp to download a video and then cut the video down afterward using ffmpeg. But to be able to use ffmpeg I am going to have to know the name of the file that yt-dlp produces. I have read through their documentation but I can't seem to find a way of getting the file name back into my program.
20:27
FFmpeg - Down-mix AC3 5.1 to Fraunhofer FDK ACC 2.1 - Aida_Aida Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to re-encode some of my old videos to "archive" them. I do not need to keep the audio 5.1, but I would like to down-mix it to 2.1 instead of Stereo which sounds just too dull. This is the relevant part which takes care of the down-mix to Stereo and re-encodes the audio, I would like to adjust it to down-mix to 2.1. -ac 2 -c:a libfdk_aac -vbr 3 I did some research and it seems that there is a -layouts switch which does support 2.1, but I don't know, how to use it. What channel should go where? Just for illustration (...)
18:10
FFMpeg 6.1 h265 decoding with grey artifacts - Edimar Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFmpeg 6.1 with Delphi 10.3, and when decoding an H.265 MP4 file, I occasionally get gray artifacts. It seems to occur when there is some processing stress. I’ve extracted the key points of the code being used below: fCodec := avcodec_find_decoder(AV_CODEC_ID_HEVC); fCodecCtx := avcodec_alloc_context3(fCodec); avcodec_open2(fCodecCtx, fCodec, nil) try // Decode video frame pPDecInfo.ErrorCode := avcodec_send_packet(fCodecCtx, vPacket); while pPDecInfo.ErrorCode >= 0 do begin pPDecInfo.ErrorCode := (...) --
16:02
Ffmpeg run in background and can't be stoped - user27207735 Newest 'ffmpeg' Questions - Stack Overflow

Why does ffmpeg run these services even when I'm not running anything that uses ffmpeg and when I turn those services off it starts again. Can someone tell me how to stop those services and remove them completely? OS: Ubuntu 24.04 LTS htop image What I have tried: kill these process. check startup for any thing related to ffmpeg. -- htop image
13:42
FFMpeg 6.1 h265 decoding with grey frames - Edimar Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFmpeg 6.1 with Delphi 10.3, and when decoding an H.265 MP4 file, I occasionally get gray frames. It seems to occur when there is some processing stress. I’ve extracted the key points of the code being used below: fCodec := avcodec_find_decoder(AV_CODEC_ID_HEVC); fCodecCtx := avcodec_alloc_context3(fCodec); avcodec_open2(fCodecCtx, fCodec, nil) try // Decode video frame pPDecInfo.ErrorCode := avcodec_send_packet(fCodecCtx, vPacket); while pPDecInfo.ErrorCode >= 0 do begin pPDecInfo.ErrorCode := (...) --
09:58
I am getting this "Error: FFmpeg/avconv not found!" - Fhabbulous Newest 'ffmpeg' Questions - Stack Overflow

I am trying to create a discord bot, however receive this error every time I try to run a youtube link. Error: FFmpeg/avconv not found! at Function.getInfo (C:\\Users\\-\\discord-bot\\node_modules\\prism-media\\src\\core\\FFmpeg.js:130:11) at Function.create (C:\\Users\\-\\discord-bot\\node_modules\\prism-media\\src\\core\\FFmpeg.js:143:38) at new FFmpeg (C:\\Users\\-\\discord-bot\\node_modules\\prism-media\\src\\core\\FFmpeg.js:44:27) at AudioPlayer.playUnknown (C:\\Users\\-\\discord-bot\\node_modules\\discord.js\\src\\client\\voice\\player\\BasePlayer.js:47:20) at VoiceConnection.play (...)
08:01
I have use the ffmpeg in my react konva project but it not import correclty? - Humayoun Saeed Newest 'ffmpeg' Questions - Stack Overflow

I use ffmpeg in my react konva project to record video and download it, but when i import it give me error, when i give to to gpt or google it giveme another way of export when i do this one it same give me error of import from ffpmg Error: ERROR in ./src/components/Preview.jsx 29:25-37 export 'createFFmpeg' (imported as 'createFFmpeg') was not found in 'ⓐffmpeg/ffmpeg' (possible exports: FFmpeg) ERROR in ./src/components/Preview.jsx 123:34-43 export 'fetchFile' (imported as 'fetchFile') was not found in (...)
06:22
Java uses FFmpegRecoder to encode frames into H264 streams - zhang1973 Newest 'ffmpeg' Questions - Stack Overflow

I want to obtain the Frame from the video stream, process it, use FFmpegRecoder to encode it into an H264 stream, and transmit it to the front-end. But I found that the AVPacket obtained directly using grabber.grabAVPacket can be converted into H264 stream and played normally. The H264 stream encoded using FFmpegRecoder cannot be played. Here is my Code: private FFmpegFrameRecorder recorder; private ByteArrayOutputStream outputStream = new ByteArrayOutputStream();; private boolean createRecoder(Frame frame) recorder = new FFmpegFrameRecorder(outputStream, (...)

4 septembre

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

23:02
ffmpeg - how join NOT merge-mix few audio files [closed] - sof10not Newest 'ffmpeg' Questions - Stack Overflow

below example mixing files, but need adding (join) i mean when one end other begin ffmpeg.exe -i "1.wav" -i "2.wav" -filter_complex amerge "YY.wav" like that example for sox sox.exe --combine concatenate ⓐ\\*.wav YY.wav i try read ffmpeg help, very hard for me.
16:41
How to replace gdigrab with Desktop Duplication API in ffmpeg [closed] - WinAx Newest 'ffmpeg' Questions - Stack Overflow

I use the following command to record the screen and webcam ffmpeg -f gdigrab -video_size 2560x1440 -framerate 30 -rtbufsize 1500M -thread_queue_size 512 -probesize 100M -analyzeduration 30M -i desktop -f dshow -rtbufsize 1500M -thread_queue_size 512 -probesize 100M -analyzeduration 30M -i video="camera" -f dshow -i audio="micro" -filter_complex "[1:v]crop=720:720:280:0,scale=256:256[cam];[0:v][cam]overlay=main_w-overlay_w-20:main_h-overlay_h-20;[2:a]volume=1.00[a]" -map "[a]" -c:v libx264 -preset ultrafast -c:a aac "video.mp4" In the resulting video there are occasional (...)
18:21
Capturing terminal output into pandas dataframe without creating external text file - tavalendo Newest 'ffmpeg' Questions - Stack Overflow

I am using ffmpeg's extract_mvs file to generate some text information. I would use a command like this in the terminal: /extract_mvs input.mp4 > output.txt I would like to use this command with Popen or other subprocess in python such that instead of output.txt, the data is passed straight to a pandas data frame without actually generating the text file. The idea is to automate this multiple times, so, I am trying to avoid many .txt files from being generated and thus having to open() them one by one. I thought of something like this: (...)
12:58
C++ ffmpeg lib version 7.0 - export audio to different format - Chris P Newest 'ffmpeg' Questions - Stack Overflow

I want to make a C++ lib named cppdub which will mimic the python module pydub. One main function is to export the AudioSegment to a file with a specific format (example: mp3). The code is: AudioSegment AudioSegment::from_file(const std::string& file_path, const std::string& format, const std::string& codec, const std::map& parameters, int start_second, int duration) avformat_network_init(); av_log_set_level(AV_LOG_ERROR); // Adjust logging level as needed AVFormatContext* format_ctx = nullptr; if (...)
12:54
unable to insert subtitles in ffmpeg i can cornfirm all the pathes are correct - yahiya Newest 'ffmpeg' Questions - Stack Overflow

I was trying to add subtitles in node js by -vf filter , and at that time it is giving the error cannot open output path , which was working fine before adding subtitles , which had compilled vedio and autput successfully here is my code before adding subtitle shuffleArrayVedios : (array) => for (let i = array.length - 1; i > 0; i--) const j = Math.floor(Math.random() * (i + 1)); [array[i], array[j]] = [array[j], array[i]]; return array; , compile:()=> return new Promise(async (resolve, reject) => (...)
11:04
C++ ffmpeg lib version 7.0 - annoying removing frames while exporting - Chris P Newest 'ffmpeg' Questions - Stack Overflow

I want to make a C++ lib named cppdub which will mimic the python module pydub. One main function is to export the AudioSegment to a file with a specific format (example: mp3). The code is: AudioSegment AudioSegment::from_file(const std::string& file_path, const std::string& format, const std::string& codec, const std::map& parameters, int start_second, int duration) avformat_network_init(); av_log_set_level(AV_LOG_ERROR); // Adjust logging level as needed AVFormatContext* format_ctx = nullptr; if (...)
10:59
Different container duration between ffmpeg versions which causes audio gaps - blits Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to make a looped RTMP stream from a single video (in this example - YouTube), but starting with version 6.0 it introduces a gap in-between loops in the audio which is quite audible. Version before 6.0 (I tried 5.1.6 and 4.4.2) work as expected and don't introduce any gaps. The difference I spotted is that the master version (7.0.2) and the 5.1.6, for example, report a different duration time. Is there any reason why that might happen? v5.1.6: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'demo-video.mp4': Metadata: major_brand (...) -- through the link, https://gist.github.com/blitss/1e221b4fa8885b1df8ac2096746239cf
09:47
Understanding ffmpeg re parameter - formatkaka Newest 'ffmpeg' Questions - Stack Overflow

I was reading about the -re option in ffmpeg . What they have mentioned is From the docs re (input) Read input at the native frame rate. Mainly used to simulate a grab device, or live input stream (e.g. when reading from a file). Should not be used with actual grab devices or live input streams (where it can cause packet loss). By default ffmpeg attempts to read the input(s) as fast as possible. This option will slow down the reading of the input(s) to the native frame rate of the input(s). It is useful for real-time output (e.g. live (...) -- docs
08:07
Can not use ffmpeg to convert a flv file into mp4 file - Karmylr Newest 'ffmpeg' Questions - Stack Overflow

I have a flv file, which can be played normally with potplayer, but it cannot be converted into mp4 format with ffmpeg. File: https://www.mediafire.com/file/ukexdhw15tyfrcx/2.22_xindongfang.flv/file I typed ffmpeg -i 2.22_xindongfang.flv -acodec copy -vcodec copy test.mp4, and the following error log appeared: [mp4 ⓐ 0000018bbe928880] dimensions not set Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:1 (...) -- https://www.mediafire.com/file/ukexdhw15tyfrcx/2.22_xindongfang.flv/file
07:28
Video Ending prematurely with websocket and ffmpeg - Zaid Newest 'ffmpeg' Questions - Stack Overflow

I am working on a screen recording application and it allows users to record their screen and I use websocket to send byte data in real time to my fastapi python server. The bytes are send every 2 second and I use ffmpeg to keep saving the bytes in the output mp4 video file. Everything was working fine when I had the server running on my local machine, however, I just deployed the server to EC2 instance us-ease-1 and when I try to record the videos, the videos are really short, IE, if I record a 30 second video, it only has the video for 3 second. Sometimes it saves 90% of the video and (...) --
05:55
C++ ffmpeg lib version 7.0 - distortion in exported audio - Chris P Newest 'ffmpeg' Questions - Stack Overflow

I want to make a C++ lib named cppdub which will mimic the python module pydub. One main function is to export the AudioSegment to a file with a specific format (example: mp3). The code is: AudioSegment AudioSegment::from_file(const std::string& file_path, const std::string& format, const std::string& codec, const std::map& parameters, int start_second, int duration) avformat_network_init(); av_log_set_level(AV_LOG_ERROR); // Adjust logging level as needed AVFormatContext* format_ctx = nullptr; if (...)

3 septembre

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

21:54
Checking Video Quality using WP Code, Forminator and FFmpeg is not working [closed] - guiliannkamga Guilian90 Newest 'ffmpeg' Questions - Stack Overflow

I have a WordPress website where users should be able to upload videos. The quality of the videos should be checked upon upload, meaning the videos must have a 16:9 aspect ratio and be in HD. If a video does not meet these conditions, the upload should not be allowed, and the user should be informed of the reason. I am using the WordPress plugin Forminator for the video upload form and WP Code with a code snippet that contains PHP code. FFmpeg version 4.4.2 is installed on my server. ffmpeg version Form to upload a Video My provider is DreamHost, and I can connect to (...) -- ffmpeg version, Form to upload a Video, Uploading the Video, Success Message after uploading the Video, PHP Code Snippet in WPCode, WPCode Settings
11:48
ffmpeg Error opening input: Server returned 401 Unauthorized (authorization failed) [closed] - Dheeraj Reddy Newest 'ffmpeg' Questions - Stack Overflow

ffmpeg -protocol_whitelist file,http,https,tcp,tls,crypto -i "https://api.softwareschool.co/videos/cf/FI/U2FsdGVkX19gKSdUtJ5zwDrfADmw0z3P0gPIQt4xIN1woX0w3GZ%2FKfy19pIRUmkLdZXtFS%2FgiAYt4oNvFCplq65s1OJTpn5WyS7W06GI3wA%3D/about_courses/reactjs/1/about_react_1_.m3u8" -c:v libx264 -preset ultrafast -crf 25 out.mp4 ffmpeg version 2024-09-02-git-3f9ca51015-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers built with gcc 13.2.0 (Rev5, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads (...) -- https://api.softwareschool.co/videos/cf/FI/U2FsdGVkX19gKSdUtJ5zwDrfADmw0z3P0gPIQt4xIN1woX0w3GZ%2FKfy19pIRUmkLdZXtFS%2FgiAYt4oNvFCplq65s1OJTpn5WyS7W06GI3wA%3D/about_courses/reactjs/1/about_react_1_.m3u8, error screenshot
23:44
GPU-accelerated video processing with ffmpeg - Wang Hai Newest 'ffmpeg' Questions - Stack Overflow

I want to use ffmpeg to accelerate video encode and decode with an NVIDIA GPU. From NVIDIA's website: NVIDIA GPUs contain one or more hardware-based decoder and encoder(s) (separate from the CUDA cores) which provides fully-accelerated hardware-based video decoding and encoding for several popular codecs. With decoding/encoding offloaded, the graphics engine and the CPU are free for other operations. My question is: can I use CUDA cores to encode and decode video, maybe (...) -- NVIDIA's website
16:07
Text in ass subtitles is displayed smaller then should - Armen Sanoyan Newest 'ffmpeg' Questions - Stack Overflow

I add subtitles to video by ffmpeg using two different ways. The first way is by using drawtext command and this way everything works perfectly. Here is the command ffmpeg -i ./input.mp4 -vf "drawtext=text='reise':fontfile=../fonts/Audiowide-Regular.ttf:fontsize=55:fontcolor=white:x=0:y=683" -codec:a copy ./output.mp4 The second way is by using ass subtitles file. This way I got smaller letters and wrong y position for text. Below is the ass subtitle file content [Script Info] Title: Advanced Highlighted Subtitle Example ScriptType: (...) -- , , https://www.universalmediaserver.com/forum/viewtopic.php?t=5907
15:13
The same FFmpeg commands run fast on the command line and slow in Flutter, how to Debug? - QIAOMO Newest 'ffmpeg' Questions - Stack Overflow

It's a simple task to watermark an image: ffmpeg -hide_banner -y -i image.AVIF -i watermark.png -filter_complex "overlay=(main_w-overlay_w-50):(main_h-overlay_h-50)" output.AVIF It takes almost seconds on the command line, but half a minute in Flutter. await Process.run('ffmpeg', [ '-hide_banner', '-y', '-i', 'image.AVIF', '-i', 'watermark.png', '-filter_complex', 'overlay=(main_w-overlay_w-50):(main_h-overlay_h-50)', (...)
03:12
ffmpeg - Windows batch file for 2pass conversion using loudnorm [closed] - David Newest 'ffmpeg' Questions - Stack Overflow

How do you write a windows batch file that will do the following with ffmpeg; make a windows batch file convert all mkv files in a directory use two pass use the loudnorm audio filter
03:39
Fix "Non-monotonic DTS" Warning Caused By asetnsamples Filter - Harry Muscle Newest 'ffmpeg' Questions - Stack Overflow

I'm using the following complex filter to mute certain parts of an audio file and replace those parts with a beep generated by the sine filter: [0]asetnsamples=n=1,volume=0:enable='between(t,1.57,1.97)+between(t,4.77,5.27)+between(t,5.37,5.87)+between(t,6.37,6.77)'[dippedVocals];sine=d=10:f=1000:samples_per_frame=1,pan=stereo|FL=c0|FR=c0[constantBleep];[constantBleep]atrim=start=0:end=6.77[shortenedBleep];[shortenedBleep]volume=0:enable='between(t,0,1.57)+between(t,1.97,4.77)+between(t,5.27,5.37)+between(t,5.87,6.37)'[dippedBleep];[dip

2 septembre

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

06:54
ffmpeg: record 1 hour segment, right on the hour, no/little frame lost [closed] - Jean-Michel Newest 'ffmpeg' Questions - Stack Overflow

I need to record 24/7 an incoming SRT stream into 1 hour chunks, starting right on the hour. The start needs to be as close as XX:00:00.000 as possible and little to no frame lost between the recordings. For now I am using a systemd service with that ExecStart command: /usr/bin/ffmpeg -fflags +discardcorrupt -i 'srt://:4010?pkt_size=1316&mode=listener' -c copy -map 0:v:0 -map 0:a? -f segment -strftime 1 -segment_time 3600 -reset_timestamps 1 -segment_format ts '/somefolder/recording_%%d%%m%%Y_%%H%%M00.ts' And using a crontab to restart (...)
20:36
RTSP to HLS conversion with error on some devices - Wallace Ketler Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to convert, on a node server, RTSP IP camera devices to HLS to run livestreams on the web. The following code works well for some RTSP devices, but for others I encounter problems. function startLive(rtspUrl, outputDir, id_local, id_camera) return new Promise((resolve, reject) => const processKey = `$id_local_$id_camera`; if (ffmpegProcesses[processKey]) return reject(new Error('Conversão já está em andamento para esta câmera')); const process = ffmpeg(rtspUrl) .inputOptions([ (...)
15:04
C++ ffmpeg lib version 7.0 - noice in exported audio - Chris P Newest 'ffmpeg' Questions - Stack Overflow

I want to make a C++ lib named cppdub which will mimic the python module pydub. One main function is to export the AudioSegment to a file with a specific format (example: mp3). The code is: AudioSegment AudioSegment::from_file(const std::string& file_path, const std::string& format, const std::string& codec, const std::map& parameters, int start_second, int duration) avformat_network_init(); av_log_set_level(AV_LOG_ERROR); // Adjust logging level as needed AVFormatContext* format_ctx = nullptr; if (...)
12:12
Video fingerprinting not working for the video - Veer Pratap Newest 'ffmpeg' Questions - Stack Overflow

I implemented video fingerprinting, and it works well when the videos are exactly the same, producing a similarity score of 1. However, I encounter an issue when comparing videos that have been merged in different orders. For instance, if I merge video1 and video2 to create a new video and then merge them in reverse order (video2 + video1), the system fails to detect any matching frames between the two resulting videos. The challenge lies in comparing frames between videos regardless of their timing or order. How can I modify the comparison process to ensure that frames are (...)
11:52
Is there any possibility to transcode a h264 hls/m3u8 live stream into another HEVC (h265) hls/m3u8 live stream using FFmpeg in real time? - Ghenadie Pripa Newest 'ffmpeg' Questions - Stack Overflow

The command I used: ffmpeg -i https://tezaurtv.md/wp-content/uploads/live/index.m3u8 -c:v libx265 -b:v 1500k -tag:v hvc1 -c:a aac -b:a 128k -f hls -hls_time 10 -hls_list_size 10 -hls_flags delete_segments+append_list+program_date_time -hls_playlist_type event -hls_segment_type mpegts -hls_segment_filename "D:/BRUT/HLS/test/stream_%d.ts" -vsync 2 -rtbufsize 500M -loglevel debug D:/BRUT/HLS/test/stream.m3u8 I tried a lot of commands and parameters but nothing helps. The experiment is on local Windows. Transcode with ffmpeg and play with FFplay. The problem is (...)
10:31
How to use Hardware codec during video compression in Android - Filnik Newest 'ffmpeg' Questions - Stack Overflow

I was wondering how to use hardware acceleration in the best way to compress a video on Android. I've tried Transformer by ExoPlayer and is quite slow. With ffmpegKit unfortunately libopenh264 is quite slow (and doesn't use hardware codec) and I'm not able to make h264_mediacodec work. Any idea on how to make the mediacodec work? This is the code I'm using right now for the tests but it fails with mediacodec (generic error). I've compiled manually FFMpegKit to add mediacodec already. companion object private const val VIDEO_WIDTH = 1080 (...)
06:50
ffmpeg command problem in python to remove silences at the beggining and end. error: returned non-zero exit status 4294967274 - Teko JR Newest 'ffmpeg' Questions - Stack Overflow

I have a problem regarding ffmpeg use in jupyter notebooks. I'm trying to use this funcion for an audio, but I get the below error, I have tried changing the file to wav and different specifications of the command code. But nothing works. def remove_silence(input_file): """ Remove silence from the start and end of an audio file and overwrite the original file. Args: input_file (str): Path to the audio file. Returns: str: Path to the processed audio file (same as input path). """ # Construir el comando FFmpeg en una lista (...)

1er septembre

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

09:20
ffmpeg Waveform video with trim not working [closed] - Ansh Rathod Newest 'ffmpeg' Questions - Stack Overflow

This doesn't show the waveform in the video, i want to trim the audio before making waveform video but waveform video doesn't appear in the video, i tested with another command where if i add "-ss" at the output it works but with larger 2 hour file it just too slow to start. so i need to keep the seek flag before the input file ffmpeg -ss 5327.233 -i input.mp3 -progress pipe:1 -y -f lavfi -i color=c=#007AFF:s=400x400 -filter_complex (...)
18:43
C++ ffmpeg lib version 7.0 - runtime error - Chris P Newest 'ffmpeg' Questions - Stack Overflow

I want to make a C++ lib named cppdub which will mimic the python module pydub. One main function is to export the AudioSegment to a file with a specific format (example: mp3). The code is: void check_av_error(int error_code, const std::string& msg) if (error_code < 0) char errbuf[AV_ERROR_MAX_STRING_SIZE]; av_strerror(error_code, errbuf, sizeof(errbuf)); throw std::runtime_error(msg + ": " + errbuf); std::string av_err2str_(int errnum) char buf[AV_ERROR_MAX_STRING_SIZE]; av_strerror(errnum, buf, (...)
16:48
How to mix audio with specific delays in FFMPEG - user3325749 Newest 'ffmpeg' Questions - Stack Overflow

I have an array that contains paths to audio files along with delay durations (in ms). Something like ["audio1.wav", 300, "audio2.wav", 350, "audio3.wav", 280, "audio4.wav"] I want to mix the audio such that every subsequent audio file is added after X delay, where X is the immediately proceeding delay duration. Here's an illustration of what the final audio should look like: Here's the code I've written (using the FFMpeg Kit library): export const concatenateAudio = async ( audioSequence: (string | number)[], outputFile: string ): (...) --
12:29
got invalid text position and size for ass subtitles - Armen Sanoyan Newest 'ffmpeg' Questions - Stack Overflow

I add subtitles to video by ffmpeg using two different ways. The first way is by using drawtext command and this way everything works perfectly. Here is the command ffmpeg -i ./input.mp4 -vf "drawtext=text='reise':fontfile=../fonts/Audiowide-Regular.ttf:fontsize=55:fontcolor=white:x=0:y=683" -codec:a copy ./output.mp4 The second way is by using ass subtitles file. This way I got smaller letters and wrong y position for text. Below is the ass subtitle file content [Script Info] Title: Advanced Highlighted Subtitle Example ScriptType: (...) -- , , https://www.universalmediaserver.com/forum/viewtopic.php?t=5907
07:18
FFmpeg drawtext issue when apply hindi language font file or other language font file - Jaydip Nathani Newest 'ffmpeg' Questions - Stack Overflow

We are trying to use FFmpeg draw text to support Hindi fonts. but some characters are not rendering properly. Used Hindi Language Font file :-https://fonts.google.com/specimen/Khula Input string :- **जिन्दगी सिर्फ हकीक़त है हकीक़त समझो,** But output renders as output of code I want some perfect solution to apply assets font on FFmpeg. Thank you in Advance. -- https://fonts.google.com/specimen/Khula, output of code

31 août

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

18:42
Issues with FFmpeg Recording RTSP Stream with HEVC Codec: Blurred Bottom of Video - user2877989 Newest 'ffmpeg' Questions - Stack Overflow

I'm using FFmpeg to capture an RTSP stream from an IMOU camera, and I'm encountering an issue with the recorded video. The output video is encoded using the HEVC codec, but the bottom part of the video appears blurred while the top part displays correctly. Here is the command I'm using: ffmpeg -i "rtsp://admin:xxxxxⓐ192.168.1.32:554/cam/realmonitor?channel=1&subtype=0&unicast=true&proto=Onvif" -c copy -f segment -segment_time 5 -reset_timestamps 1 -strftime 1 "./%Y_%m_%d_%H_%M_%S.mp4" Details: FFmpeg Version: [Include your FFmpeg (...) --
17:08
ffmpeg filter_complex works on mac but not on windows - ishandutta2007 Newest 'ffmpeg' Questions - Stack Overflow

Code in python: command_str_concat = f'ffmpeg -i file1.mp4 -i file2.mp4 -filter_complex "concat=n=2:v=1:a=1" -vn -y myfinal.mp4' command_concat = shlex.split(command_str_concat, posix=False) subprocess.call(command_concat) The Error message on windows 10: No such filter: '"concat' The same python code works on mac without any issue.
10:35
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?
08:40
Function for frame affine transformations in libav (ffmpeg)? - nopik Newest 'ffmpeg' Questions - Stack Overflow

I need to perform affine transformation to AVFrame data (mostly dxva2 NV12). I found no procedure or options in frame or hwcontext. Looked into filters - and nothing (google found av_filter_transform, but I'm not found it in any build includes). Is there any option to do this such a basic operation? May be I missed some DXVA option? Or at least filters (although using such a beast...).
06:56
Download m3u8 video from web page with authorization - maya_soloveva Newest 'ffmpeg' Questions - Stack Overflow

I try download m3u8 video from webpage with access by authorization. I use ffmpeg command. I get headers from network tab. ffmpeg -y -loglevel verbose -headers "$(cat headers.txt)" -i "https://apps.foxford.ru/webinar-foxford/storage/api/v2/backends/yandex/sets/hls.webinar.foxford.ru::420e27e1-1c7d-43e9-9195-fc8b99e6f50a/objects/long.v2.yandex.video.360p.master.m3u8" output2.mp4 -c copy -f mp4 file:foxford_01.mp4.part headers.txt content: Host: apps.foxford.ru User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:129.0) Gecko/20100101 (...) -- ,
00:08
Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (360p.m3u 8) has not been used for any stream. - Marc Archenault Newest 'ffmpeg' Questions - Stack Overflow

I am receiving this warning from ffmpeg. The job runs and all the videos seem to output correctly. I have 2 hls, 1 mp4 with overlay + A single thumbnail. The warning: Stream #1:0: Video: png, rgba(pc), 500x38, 25 tbr, 25 tbn, 25 tbc Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (360p.m3u 8) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of s ome encoder which was not actually used for any stream. The windows (...)

30 août

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

13:42
FFmpeg reversing a huge mp4 video [closed] - Douglas E Knapp Newest 'ffmpeg' Questions - Stack Overflow

I did something dumb. I rendered a long video in blender backwards! Ya, the actors are moving in reverse. The sound is normal. The easy way to fix this is ffmpeg -i originalVideo.mp4 -vf reverse reversedVideo.mp4 but that uses up all the memory in my manjaro computer and crashes ffmpeg. :-( So how can I do this? I am open to using other software but this way seemed best. Thanks!
15:03
Fastest way to compress a video in Android - Filnik Newest 'ffmpeg' Questions - Stack Overflow

I was wondering what is the fastest way to compress a video on Android. I've tried Transformer by ExoPlayer and is quite slow. With ffmpegKit and libx264 things are better but the license doesn't allow me to use it in closed source apps. Unfortunately libopenh264 is quite slow and I'm not able to make h264_mediacodec work. Any idea on how to make the mediacodec work? This is the code I'm using right now for the tests but it fails with mediacodec (generic error). I've compiled manually FFMpegKit to add mediacodec already. companion object (...)

29 août

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

22:43
Output resolution substantially below input resolution [closed] - bobford Newest 'ffmpeg' Questions - Stack Overflow

I have written an Android app to overlay a watermark png using FFMpeg 6.0 which works fine on 1k and 4k videos. In both cases the output resolution substantially deteriorates albeit consistent with the reduction in file size. In both cases, the original width-height pixel sizes are retained. The ffmpeg command is: String[] array = new String[] "-i ", inputFile, " -i ", watermarkFile, " -filter_complex ", overlayPosition, " -codec:a copy ", outputFile; String delimiter = ""; String command = String.join(delimiter, array); I would like to retain the original (...)
21:03
Converting MP3 to Opus using ffmpeg.wasm [closed] - SJ Siam Newest 'ffmpeg' Questions - Stack Overflow

I am using ffmpeg.wasm in my JavaScript project. I am trying to convert MP3 to Opus but I am getting a 0-byte Opus file. Also, the file is not working. I am using this command: ffmpeg_cmd = ['-i', 'audio.mp3', '-vn', '-c:a', 'libopus', '-b:a', '128k', 'audio.opus']; I have even tried using the Playground of the documentation and have had the same result. But if I use libvorbis instead of libopus it's converting smoothly and the output file also works fine. But this method changes the (...)
21:27
.exe file, works different than .py file - r_b Newest 'ffmpeg' Questions - Stack Overflow

I've made the YouTube Dowbloader App. Everything is working properly (run in PyCharm), but when I try to make it into an executable with pyinstaller, it does not work. This is the link to the repo: YouTube Downloader Command for making exe file: pyinstaller project.spec project.spec file: # project.spec # -*- mode: python ; coding: utf-8 -*- block_cipher = None a = Analysis( ['gui.py'], pathex=['.'], binaries=[], datas=[('static_files/*', 'static_files')], (...) -- YouTube Downloader, Search block diagram
19:25
ffmpeg: dshow, use same input device [closed] - Francesco Newest 'ffmpeg' Questions - Stack Overflow

Is there a way to use the same input device on 2 ffmpeg/ffplay instances? Something like this: ffplay.exe -f dshow -framerate 30 -i video="MiraBox Capture" -window_title View1 and this: ffplay.exe -f dshow -framerate 30 -i video="MiraBox Capture" -window_title View2 Reported error is: Could not run graph (sometimes caused by a device already in use by other application) video=MiraBox Capture: I/O error and at this page I read this: Multiple devices may be opened as separate inputs, but they may also be opened on the (...) -- this
11:51
Unable to read video streams on FFMPEG and send it to youTube RTMP server - Rahul Bundele Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to send two video stream from browser as array buffer (webcam and screen share video) to server via Web RTC data channels and want ffmpeg to add webcam as overlay on screen share video and send it to youtube RTMP server, the RTC connections are established and server does receives buffer , Im getting error in Ffmpeg..error is at bottom , any tips on to add overlay and send it to youtube RTMP server would be appreciated. Client.js ` const webCamStream = await navigator.mediaDevices.getUserMedia( video: true ,audio:true ); const screenStream = await (...)
11:13
Converting MP3 to Opus using libopus codec - SJ Siam Newest 'ffmpeg' Questions - Stack Overflow

I am using ffmpeg.wasm in my JavaScript project. I am trying to convert MP3 to Opus but I am getting a 0-byte Opus file. Also, the file is not working. I am using this command: ffmpeg_cmd = ['-i', 'audio.mp3', '-vn', '-c:a', 'libopus', '-b:a', '128k', 'audio.opus']; I have even tried using the Playground of the documentation and have had the same result. But if I use libvorbis instead of libopus it's converting smoothly and the output file also works fine. But this method changes the (...)
08:23
Using FFmpeg to receive H.264 video stream by SRTP in Windows [closed] - Taylor Yi Newest 'ffmpeg' Questions - Stack Overflow

I am using LGPL version of FFmpeg on Windows. I've downloaded it from https://github.com/BtbN/FFmpeg-Builds. I have been trying to receive Secure RTP video stream using FFmpeg. I want to receive the video as bgr24 rawvideo, and send it into output stream (using -). I have a script in GStreamer that works, so I want to convert it to FFmpeg. Below are the GStreamer script. It plays the received video using autovideosink; gst-launch-1.0 -v udpsrc port=4000 caps="application/x-srtp, ssrc=(uint)1356955624, mki=(buffer)01, (...) -- https://github.com/BtbN/FFmpeg-Builds
05:58
imagemagick -auto-level in ffmpeg - Sagi Mann Newest 'ffmpeg' Questions - Stack Overflow

I've been looking for a solution to perform the equivalent of magick -auto-level in ffmpeg but am unable to find anything. There are some references stating I should first manually discover the levels using other software like GIMP, however, I'm looking for an automated and simpler solution. Any ideas how to address this? I've tried the following - the first enhanced the image which was initially prettry dark, but the second over-exposed it, causing it to become mostly white: convert img.jpg -auto-level img2.jpg ffmpeg -i img.jpg -vf "normalize" -y (...)
05:43
How to Extract Video Duration from AVI Files using Apache Tika? - smooky.secrets Newest 'ffmpeg' Questions - Stack Overflow

I've been working on a Java application where I need to extract metadata from various media files, including video files like .avi. Initially, I was using FFmpeg to handle this, but due to security concerns and known vulnerabilities, I upgraded to the latest version of FFmpeg. Unfortunately, even the latest version still had vulnerabilities. To address this, I switched to using JAVE2, a Java-based media processing library. However, I later discovered that JAVE2 relies on FFmpeg under the hood, which didn't resolve my security concerns. I then decided to use Apache Tika (...)

28 août

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

18:41
ffmpeg: getting larger gif file after optimization [closed] - xaxa Newest 'ffmpeg' Questions - Stack Overflow

I'm trying to use ffmpeg to reduce the size of GIF images by lowering fps and color palette size. This is the command I use: ffmpeg -i initial.gif -filter_complex "[0]fps=$fps,split[m][t];[t]palettegen=max_colors=$max_colors[p];[m][p]paletteuse" output.gif however, for some reason I'm getting larger files even if I do something as stupid as fps=1, max_colors=4. here's the initial file: here's what I've got after the transformation: the command was: ffmpeg -i eglite.gif -filter_complex (...) -- ,
23:45
Error Error sending packet to decoder -1094995529 when extracting audio from MP4 using FFmpeg C API - Saad Out03 Newest 'ffmpeg' Questions - Stack Overflow

I am trying to extract audio from an MP4 file and save it as an MP3 using the FFmpeg C API. My code is able to identify the audio stream, set up the codec contexts, and start reading packets. However, I encounter an error when sending packets to the decoder. Purpose of the Code: Open the input video file and retrieve the stream information. Identify the audio stream and set up decoding with the appropriate codec. Set up the output format for the MP3 file and configure codec parameters. Read packets from the input file and send them to the decoder. (...)
17:22
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: At least one output file must be specified Is it possible? -- FFmpeg
05:45
Why are the red words blurred after opencv and ffmpeg screenshots from a video capture card? [closed] - yaxin xing Newest 'ffmpeg' Questions - Stack Overflow

I tried to take a screenshot after getting the video stream through the video capture card, but the words in red font become blurry after taking the screenshot, but setting the video format to XRGB format in OBS makes it clear. How can I solve this problem in python? As you can see in the picture, the red letters are much less clear than the other colors enter image description here I tried to capture a frame in ffmpeg and set -pix_fmt but it's still blurry, I tried 4:4:4 color modes like nv12, yuv444, rgb24, etc. but it doesn't work. I also tried passing (...) -- enter image description here
04:46
FFMPEG build on Windows using MSVC - make fails - Maya Sela Newest 'ffmpeg' Questions - Stack Overflow

I am trying to build FFMPEG on Windows with MSVC. I am following this guide. I have managed to setup the environment in order to configure successfully, but make doesn't work. From VS2013 x64 Native Tools Command Prompt I run msys2_shell.cmd -use-full-path and from msys2_shell.cmd I go to the ffmpeg folder and run mingw32-make which outputs: awk: cmd. line:1: ^ syntax error awk: cmd. line:1: /including/ sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($0, / /)) print "libavdevice/alldevices.o:", $0 awk: cmd. line:1: ^ unterminated (...) -- guide

27 août

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

23:42
Is It possible to read and define HLS stream key by a vriable instead of stream.key file? - Saeed Eisakhani Newest 'ffmpeg' Questions - Stack Overflow

I encrypted an MP4 video file FFMPEG. That gave me a playlist manifest file (namely stream.m3u8), a key file (namely stream.m3u8.key) and some .ts files. I used code below to play stream.m3u8 file and it worked var player = videojs('example-video'); After I tried to use input and select file attributes and I tried code below Choose a video file to process: (...) -- ,
22:13
OSError: [WinError 126] Não foi possível encontrar o módulo especificado. Error loading [closed] - Felipes Newest 'ffmpeg' Questions - Stack Overflow

Informações relevantes ** SO: Windowns 11 Dependencias: torch --extra-index-url https://download.pytorch.org/whl/cpu; openai-whisper; ffmpeg-python Microsoft Visual C++ Redistributable Tudo isso dentro de um ambiente virtual ** Então... eu to com o seguinte codigo em python: import whisper import os # Carregar o modelo model = whisper.load_model("base") # Pode usar 'small', 'medium', 'large' conforme a necessidade # Carregar o áudio audio_path = "audio.mp3" (...) -- https://download.pytorch.org/whl/cpu;
18:05
Converting DAV to MP4 and OGG - mackowiakp Newest 'ffmpeg' Questions - Stack Overflow

I want to prepare WEB page containing films from security camera recorders. Each recorder transmit video files in DAV format so each film is converted to MP4 format by script, using such syntax: ffmpeg -y -i movie.dav -vcodec libx264 -crf 24 movie.mp4 So I included in HTMLv5 code such entry: It works correctly with Chrome but not with Firefox. For proper work in FF it is necessary add link to OGG file. So correct HTMLv5 syntax for both browsers should look like this: Can anybody help (...)
14:03
How does FFmpeg calculate linesize alignment? - yaskovdev Newest 'ffmpeg' Questions - Stack Overflow

I am new to video encoding. I am using FFmpeg library to decode the H.264 frame. I have the below C++ code (full code is here): AVCodecContext *context = create_codec_context(); AVFrame *decoded_frame = av_frame_alloc(); avcodec_send_packet(context, encoded_packet); avcodec_receive_frame(context, decoded_frame); std::cout << decoded_frame->width << "\\n"; // prints 1620, as expected std::cout << decoded_frame->linesize[0] << "\\n"; // prints 1664! What looks strange to me is the linesize of the decoded frame. Although (...) -- the H.264 frame, here, av_image_copy_to_buffer()
13:12
Extract gps location data from mp4 video with help of ffmpeg c++ library - Nikolai Egipko Newest 'ffmpeg' Questions - Stack Overflow

Are there some way to extract gps data location from mp4 video file in ffmpeg c++ library like exiftool: exiftool -ee -n -p "$gpslatitude,$gpslongitude,$gpsspeed,$gpsdatetime" test.mp4 > gps.csv I try to use av_dict_get() and av_dict_iterate() functions but without any positive result :-(
13:08
Frame Number Overlay With FFmpeg [closed] - Kobi Versano Newest 'ffmpeg' Questions - Stack Overflow

I need to overlay the frame number to each frame of a video file using ffmpeg for windows. I succeeded in overlaying a timecode stamp with the drawtext filter using this code: ffmpeg -i video.mov -vcodec r210 -vf "drawtext=fontfile=Arial.ttf: timecode='01\\:00\\:00\\:00': r=25: x=(w-tw)/2: y=h-(2*lh): fontcolor=white: box=1: boxcolor=0x00000099" -y output.mov However, I need a frame number overlay and not a timecode one. Any help would be (...)
12:44
Redirect FFMPEG's output to multiple named pipes on Windows - tearvisus Newest 'ffmpeg' Questions - Stack Overflow

I am trying to stream video and audio data into two separate named pipes on Windows. ffmpeg.exe -f dshow -i video="My camera name":audio="My microphone name" -map 0:1 -ac 1 -f f32le \\\\.\\pipe\\audioStream -map 0:0 -f mjpeg \\\\.\\pipe\\videoStream The problem is that FFMPEG does not seem to understand that the outputs \\\\.\\pipe\\audioStream and \\\\.\\pipe\\videoStream are pipes and treats them like files. If the pipes are already created when the FFMPEG starts, it wants to overwrite them and fails. Otherwise, it complains that the path does not exist and (...)
09:26
How to split a .mkv file into sound and video files? - Ken Yip Newest 'ffmpeg' Questions - Stack Overflow

I have a mkv file which contains 3 streams. I use ffprobe to get the info of my mkv file. ffprobe ./demo/test2.mkv I got this output Input #0, matroska,webm, from './demo/test2.mkv': Metadata: encoder : libebml v0.7.7 + libmatroska v0.8.1 creation_time : 2011-02-16T16:06:17.000000Z Duration: 00:03:41.08, start: 0.000000, bitrate: 1363 kb/s Stream #0:0: Video: rv40, yuv420p, 720x480, SAR 1:1 DAR 3:2, 29.97 tbr, 1k tbn, 1k tbc (default) Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp (default) Stream #0:2: Audio: aac (LC), (...)
01:04
Can't get FFMPEG to convert Samsung Motion Photos from .jpg to .mp4 [closed] - welbeebee Newest 'ffmpeg' Questions - Stack Overflow

I pulled a bunch of Samsung Galaxy S21 Ultra motion photos to my PC (Windows 11) for video editing, but they were in .jpg, and for some reason Microsoft Clipchamp couldn't convert them to video. But, I knew the motion photos were intact, bc Microsoft Photos was showing the MOTION option and playing the videos just fine. So, I'm in FFMPEG just throwing everything at the wall, but can only get still MP4's out of it, with none of the video. Here's the breakdown of what I'm looking at for: ffmpeg -i input.jpg Input #0, image2, from (...)

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