On 2021-07-26 16:39, Steven Liu wrote:

2021年7月26日 下午6:57,Gyan Doshi <ffm...@gyani.pro> 写道:

Are you referring to the choice of FLV_CODECID values?
Not only, you can find whole history on:

https://lists.ffmpeg.org/pipermail/ffmpeg-devel/
https://trac.ffmpeg.org/ticket/6389
https://trac.ffmpeg.org/ticket/3581
The objections mainly center on compliance with Adobe's spec which is a concern when muxing.

This patch is only concerned with demuxing, so we are only talking about files generated by others.

The only technical issue is the assignment of FLV_CODECID which can be mitigated by letting the user specify it at runtime. So muxers which use different values can be accommodated.

About other codecs, HW enc/dec for HEVC are widely available, not so for VVC, AV1, VP? ..etc, so the slippery slope is not a concern in the near or mid-term.

Regards,
Gyan
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