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ffmpeg - ffprobe select audio and video streams - Stack ...
https://stackoverflow.com/questions/41115917/ffprobe-select-audio-and-video-streams
ffprobe -show_streams -select_streams a INPUT where a stands for audio and could of course be replaced by: v for video; a:1 for the audio packets belonging to audio stream with index 1; v:99 for the video packets belonging to video stream with index 99 and so on.
ffmpeg Documentation
https://ffmpeg.org/ffmpeg.html
For video, it will select stream 0 from B.mp4, which has the highest resolution among all the input video streams. For audio, it will select stream 3 from B.mp4, since it has the greatest number of channels. For subtitles, it will select stream 2 from B.mp4, which is the first subtitle stream from among A.avi and B.mp4.
Convert specific video and audio track only with ffmpeg ...
https://superuser.com/questions/639402/convert-specific-video-and-audio-track-only-with-ffmpeg
If you want to choose video, audio or subtitle tracks specifically, you can also use stream specifiers: ffmpeg -i vidui.mkv -c:v libx264 -c:a ac3 -crf 20 -map 0:v:0 -map 0:a:1 vidui.mp4 Here, 0:v:0 is the first video stream and 0:a:1 is the second audio stream.
How to Extract Audio from Video Using FFmpeg
https://www.leawo.org/entips/how-to-extract-audio-from-video-using-ffmpeg-1400.html
And check the below command line: ffmpeg -i myvideo.mp4 -ss 00:00:00 -t 00:00:00.0 -vn -acodec copy audio.ogg. -ss is the start of the extracted audio timestamp, and -t is the audio duration. By using this command, you will be able to extract a certain portion of source audio file from video files using FFmpeg.
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.
conversion - FFMPEG convert video with multiple audio ...
https://video.stackexchange.com/questions/12051/ffmpeg-convert-video-with-multiple-audio-streams
Here's how -c (select codecs) & -map (select streams) options work: -c:a -> select best supported audio (transcoded) -c:a copy -> best supported audio (copied) -map 0:a -> all audio from 1st input file (transcoded) -map 0:0 -> 1st stream from 1st input file (transcoded) -map 1:a:0 -> 1st audio stream from 2nd input file (transcoded) -map 1:a:1 -c:a copy -> 2nd audio stream from 2nd …
usb - Live audio stream using FFMPEG - Raspberry Pi …
https://raspberrypi.stackexchange.com/questions/1466/live-audio-stream-using-ffmpeg
I try to stream live audio using ffmpeg and external USB microphone. I followed this nearly tutorial. I had to adapt some steps but finally, I achieved to receive the stream my laptop using this command : ffmpeg -f oss -i /dev/dsp1 -acodec libmp3lame -ab 32k -ac 1 -re -f rtp rtp://192.168.28.116:1234
r/ffmpeg - How to auto-select audio/subtitle (selected ...
https://www.reddit.com/r/ffmpeg/comments/7dclzk/how_to_autoselect_audiosubtitle_selected_using/
How to auto-select audio/subtitle (selected using spefic language) stream when processing ffmpeg? as an example: I have 2 MKV videos with 3 audio streams (English, French and Mandarin) 2 subtitle streams (English and Mandarin)
FFMPEG : While converting a video how to select second ...
https://www.linuxquestions.org/questions/linux-software-2/ffmpeg-while-converting-a-video-how-to-select-second-audio-stream-4175416919/
When I convert it to mp4 using ffmpeg. it selects the default audio for .mp4 file that is english. I want the second audio stream (0:2) should be selected for the converted video. I have tried all combinations but it selects english audio for converted file always, I …
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