http://www.gdcl.co.uk/2013/02/15/PCM-in-MP4.html
apparently way some muxers do it quite different from normal, so not as simple as adding codec_id to some table... On Sunday, November 21, 2021, Andrew Randrianasulu <randrianas...@gmail.com> wrote: > from https://amp.reddit.com/r/ffmpeg/comments/ep61ig/ > uncompressed_audio_in_mp4_workarounds_or_hacks/ > > ==== > You can use mp4box to mux PCM audio in MP4. > > If the audio is in a separate file, > > mp4box -add h264.mp4#video -add pcm.mov#audio -new h264pcm.mp4 > If it's in the same file > > mp4box -add h264pcm.mov -new h264pcm.mp4 > 2 > Reply > > jvaratos > ยท > 1y > Success! This works perfectly and premiere accepts the file with ease. > Thank you for this info! > > For those attempting similar things, I used FFMPEG to create a standalone > m4v file with a h.264 stream (encoded to my liking) as well as a mov file > containing just a PCM audio stream (mp4box would not accept a wav file for > some reason). Mp4box accepted both of those with the syntax mentioned above > and gave me a single mp4 file that premiere was happy with. > > ==== > > may be ffmbc also accepts this. If 'support' was as simple as 'id case > somewhere' - we probably can patch our ffmpeg too >
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