пт, 24 мая 2024 г., 01:00 Reindl Harald <h.rei...@thelounge.net>:
>
>
> Am 23.05.24 um 23:44 schrieb Zathras Yes:
> > And yes, a conversion of the soundfiles is not wanted, exactly.
> >
> > In a picky manner of speaking, it is a conversion of one file to another,
> > but let''s not go into this nitpicking here.
>
> again: "-acodec copy" is NOT a conversion - you are pumping a
> unsupported audio-stream into a container with the result of an invalid
> file
>
> this is not a ffmpeg problem - it's PEBCAK
>
/* ISO/IEC 23003-5 integer formats */
{ AV_CODEC_ID_PCM_S16BE, MOV_MP4_IPCM_TAG },
{ AV_CODEC_ID_PCM_S16LE, MOV_MP4_IPCM_TAG },
{ AV_CODEC_ID_PCM_S24BE, MOV_MP4_IPCM_TAG },
{ AV_CODEC_ID_PCM_S24LE, MOV_MP4_IPCM_TAG },
{ AV_CODEC_ID_PCM_S32BE, MOV_MP4_IPCM_TAG },
{ AV_CODEC_ID_PCM_S32LE, MOV_MP4_IPCM_TAG },
/* ISO/IEC 23003-5 floating-point formats */
{ AV_CODEC_ID_PCM_F32BE, MOV_MP4_FPCM_TAG },
{ AV_CODEC_ID_PCM_F32LE, MOV_MP4_FPCM_TAG },
{ AV_CODEC_ID_PCM_F64BE, MOV_MP4_FPCM_TAG },
{ AV_CODEC_ID_PCM_F64LE, MOV_MP4_FPCM_TAG },
from libavformat/movenc.c
so I guess it should be muxable, but may be yt not really likes increased
total bitrate in this case, and whole thing (vid + aud) served now as many
little pieces mostly ...? I think ALAC also exist as experimental (strict
-2) codec in ffmpeg.
>
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