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Extract audio using FFmpeg - Aavtech
https://aavtech.site/2019/06/extract-audio-using-ffmpeg/#:~:text=ffmpeg%20-i%20input.mp4%20-vn%20-acodec%20copy%20audio.aac%20The,This%20can%20be%20done%20using%20the%20following%20command.
FFmpeg Codecs Documentation
https://ffmpeg.org/ffmpeg-codecs.html
The following options are mapped on the shared FFmpeg codec options. b. Set bit rate in bits/s. If the bitrate is not explicitly specified, it is automatically set to a suitable value depending on the selected profile. In case VBR mode is enabled the option is ignored. ar. Set audio sampling rate (in Hz). channels. Set the number of audio channels.
audio - How can I determine if a codec / container ...
https://stackoverflow.com/questions/47276731/how-can-i-determine-if-a-codec-container-combination-is-compatible-with-ffmpeg
I tried this, and it seems to give back sensible results, however for certain formats avformat_query_codec(outputFormat, codec->id, FF_COMPLIANCE_STRICT) returns -1 for all codecs, hence no supported codecs for those formats. Notably the mp3 format has zero supported codecs. I was expecting that one of AVCodecs libmp3lame or mp3 would be …
How to determine video codec of a file with FFmpeg - …
https://stackoverflow.com/questions/2869281/how-to-determine-video-codec-of-a-file-with-ffmpeg
FFmpeg gives the codec too. Pull the Stream #0.0: Video line and you can see the codec. (Be aware that it could technically have a different stream number, like 0.1.) The below output uses the MS Video-1. This is different, like you desire, from the container which is …
Audio Transcoding using FFmpeg - Change Audio Codecs using ...
https://ottverse.com/transcode-audio-codec-ffmpeg-without-changing-video/
Here, you are instructing FFmpeg to. read the input file named input_filename.avi that is in an avi media container that holds both the audio and video. copy the video content as is using the -vcodec copy parameter (no video re-encoding), use mp3 audio codec to re-encode the audio ; and provide the output in an avi file with the newly encoded ...
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