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ffmpeg Documentation
https://ffmpeg.org/ffmpeg.html#:~:text=For%20each%20acceptable%20stream%20type%2C%20ffmpeg%20will%20pick,it%20is%20the%20stream%20with%20the%20most%20channels%2C
FFmpeg: Choosing audio streams by language - Stack …
https://stackoverflow.com/questions/46769419/ffmpeg-choosing-audio-streams-by-language
Output stream 0:3 is a image-based subtitle stream. Since you've not specified an encoder for subtitles, ffmpeg is trying to pick one and fails since it doesn't have an image-based subtitle encoder. You can copy or drop the stream. Of course, your primary aim is to map only the audio stream by language. Your command will map the video twice, as ...
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 …
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
Active Oldest Votes. This answer is useful. 12. This answer is not useful. Show activity on this post. 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) …
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.
r/ffmpeg - How to auto-select audio/subtitle (selected ...
https://www.reddit.com/r/ffmpeg/comments/7dclzk/how_to_autoselect_audiosubtitle_selected_using/
The streams can appear in any order. like on the first video, Mandarin is the first audio stream but on the 2nd it's using French. Same situation with subtitle. what I want to auto-select the Mandarin audio and English subtitle without having to specify the stream number (like using …
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