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ffmpeg - ffprobe select audio and video streams - Stack ...
https://stackoverflow.com/questions/41115917/ffprobe-select-audio-and-video-streams
I had a similar scenario where I wanted to limit the output of ffprobe -show_frames to a specific audio and video streams.. It seems that -select_streams cannot accept more than 1 stream_specifier nor can it be provided multiple times for the same ffprobe command.. Moreover, ffprobe do not accept the -map parameter like ffmpeg does. This parameters allows ffmpeg to …
Convert specific video and audio track only with ffmpeg ...
https://superuser.com/questions/639402/convert-specific-video-and-audio-track-only-with-ffmpeg
The most simple map syntax you can use is -map i:s, where i is the input file ID and s is the stream ID, both starting with 0. In your case, that means we select track 0 and 4: ffmpeg -i vidui.mkv -c:v libx264 -c:a ac3 -crf 20 -map 0:0 -map 0:4 vidui.mp4. If you want to choose video, audio or subtitle tracks specifically, you can also use ...
How to Extract Audio from Video Using FFmpeg
https://www.leawo.org/entips/how-to-extract-audio-from-video-using-ffmpeg-1400.html
From other questions about this topic I learned that ffmpeg is a right tool to do this. I tried to use the following command: ‘ffmpeg -i video.mp4 -acodec copy -ss 00:30:00 -to 00:60:00 extract.mp3’. But it fails and says ‘[mp3 @ 0x3bfade0] Invalid audio stream. Exactly one MP3 audio stream is required.
Extract specific Video and Audio tracks using FFMPEG
https://emamonline.smartertrack.com/kb/a153/extract-specific-video-and-audio-tracks-using-ffmpeg.aspx
FFMPEG can extract specific video and audio tracks and combine them to make the output. You can use the -map option to select specific input streams and map them to your output. The stream number starts with 0. If you want to choose video, audio or subtitle tracks specifically, you can use stream specifiers
video - ffmpeg: set the language of an audio stream ...
https://stackoverflow.com/questions/44351606/ffmpeg-set-the-language-of-an-audio-stream
As you can see in there: "Stream #0:0 (eng)", "Stream #0:1 (nl)" & "Stream #0:2 (eng)". So that looks fine. But when I open it in VLC, I see under Audio tracks: NL - [English] ENG - [English] So I went back to check on ffmpeg with "ffmpeg -i output.mp4": Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output.mp4': Metadata: major_brand : isom minor ...
conversion - FFMPEG convert video with multiple audio ...
https://video.stackexchange.com/questions/12051/ffmpeg-convert-video-with-multiple-audio-streams
If stream mapping is showing both audio tracks are present in the output file, then you should be able to select which track to play in the video player. By default, the best or first supported audio will play. If you want both audio tracks to play (" mux them together so they both play "), then mix the audio into one track.
command line - How to extract specific audio track (track ...
https://askubuntu.com/questions/1139812/how-to-extract-specific-audio-track-track-2-from-mp4-file-using-ffmpeg
You can use the -map option to choose specific streams. To get a list of the available streams, run ffmpeg -i INPUT_FILE.EXT (Do not forget -i!), which gives e.g.: … Input #0, EXT, from 'INPUT_FILE.EXT': Metadata: encoder : VirtualDubMod 1.5.10.2 (build 2542/release) Duration: 01:35:35.88, start: 0.000000, bitrate: 1029 kb/s Stream #0:0: Video: mpeg4 …
ffmpeg Documentation
https://ffmpeg.org/ffmpeg.html
For each acceptable stream type, ffmpeg will pick one stream, when available, from among all the inputs. It will select that stream based upon the following criteria: for video, it is the stream with the highest resolution, for audio, it is the stream with the most channels, for subtitles, it is the first subtitle stream found but there’s a caveat.
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