Questions tagged [ffmpeg]
Media tool with support for multiple codecs, filters, and containers. Include your actual command and the complete console output when asking questions involving FFmpeg tools. An easy way to do this is by adding `-report` to your command and pasting the contents of the logfile generated. For help with CLI use only of ff* binaries - ffmpeg, ffprobe, ffplay. For help with API usage, post on Stack Overflow.
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How to add an additional subtitle stream to a “.ts” file?
I have a .ts file which is a satellite (DVB) recording from the TV. However, the subtitle stream in it is out of sync with the audio.
Using TSDoctor I extracted the subtitles to a .srt file.
I loaded ...
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Issues sending audio with FFmpeg to a Deva DB RX 90-91
I want to send audio with FFmpeg to a Deva DB90/91 RX with RTP.
The file sent is an mp3 file 128 kbps stereo and 48KHz.
The command line :
ffmpeg -protocol_whitelist file,rtp,udp -i <file> -c ...
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What are the FFmpeg encoding settings necessary for web playback?
I'm attempting to convert videos recorded on an iPhone (specifically the 15 Pro Max which I believe was running 17.6.1 based on metadata) to play in browsers, especially safari on said iPhone, but can'...
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ffmpeg fixing PTS timestamps without reencoding?
I have a few MP4 files that seem to have been transcoded in a strange way - which causes playback issues on Chromium apps. It took me a while to narrow down the issue but I think it is due to the pts/...
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How to encode from FFmpeg same hevc_nvenc as in OBS?
I have a lot of videos recorded in OBS, and I want to output from ffmpeg such video, which will be compatible with those OBS videos for concat filter (lossless concatenation).
Encoding settings can be ...
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Why does my attempt to capture video from a game at 4K 60Hz missing frames?
I am captured video using Bandicam and encoder H264 Nvidia NVENC. Everything work correctly with lower resolution 1920x1080 but larger resolution give me video with 20fps.
I am looking at my video ...
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How to open a cam's specific in DVR with FFmpeg?
I would like to know how to direct FFmpeg to open a specific channel on the DVR. The same syntax used in VLC does not work via the Linux terminal. By entering only the username, password, IP and port, ...
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How to reassemble raw packet data back into a new MP4 file with FFmpeg?
I am using FFmpeg.
I use the following command to get all packet info:
ffprobe -print_format json -show_packets -show_streams -show_entries packet=pts,duration,size,codec_type,pos test.mp4 > test....
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Write encoding settings in the metadata of libaom
In x264 I have automatically saved the encoding settings like crf in the metadata of the container file after encoding. How can I get the same behavior in libaom?
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How to stop an ffmpeg job when -nosdtin is enabled?
I use Python to run an FFMPEG command using subprocess.Popen(ffmpeg_cmd).
My project needs to pause/resume the ffmpeg job for a while.
To do so, I use process.suspend() and process.resume() from the ...
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Issues with converting FFmpeg video from HEV1 to HVC1
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.
视频一的视频信息 (Video ...
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Is there a way to export RTCSTART to a .txt file using FFmpeg?
Is there a way to export RTCSTART to a .txt file using FFmpeg?
Here is the code I've found so far.
ffmpeg -f gdigrab -framerate 30 -i desktop
-filter_complex setpts=RTCTIME,split[out][ts];...
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How do I set metadata for an AVIF (AV1) file
I'm trying to set metadata for an avif file (new image format) but it is not working by using the command that I would expect to use:
ffmpeg -ss 60 -i "input.mkv" -metadata title="test&...
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Changing Video Metadata: Major_Brand, Minor_Version, and Compatible_Brands
There is an original video file with the data:
I need to get the data at the exit:
More precisely, I need to change major_brand from mp42 to ISOM. minor_version from 0 to 512 and compatible_brands.
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FFmpeg concat no working
I trying to concat videos downloaded from yt-dlp using
and getting the error
ffmpeg -y -f concat -safe 0 -i files.txt -map 0 -c copy merged.mp4
I also tried using 'vcodec vp9', '-bsf:a aac_adtstoasc',...
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