[FFmpeg-devel] FFmpeg's HLS muxer's deprecation of the hls_wrap option

[Steven Liu]

Dennis Mungai <dmngaie at gmail.com>于2024年1月20日 周六21:02写道：

> Hello,
>
> Is there a valid technical reason as to why FFmpeg's HLS muxer dropped the
> hls_wrap option?


eg. three player playing the list and every fragment less or equal 1 second
,
1. Player 1 from fragment1, fragment2
2. Now Player 2 from fragment 1, fragment 2,
3. Now Player 3 from fragment 1, Fragment2 and Player 1 playing fragment 3
4. Network transport with player 3 get loss packet
5. Player 1 playing new fragment 1, new fragment 2
6. Player 2 playing fragment 3
7. Player 3 blocking always because the fragments are flashing too fast.

So the commit message said it is not friendly to downstream users.

I have no more better way to fix it with ffmpeg, but I think that commit
can be revert if you want use hls_wrap.


> There are many cases where the hls_wrap option remains critical so as to
> preserve the set of output file names without increments. This deprecation
> breaks that.
>
> For now, this behavior can be worked around by switching to the segment
> muxer and then setting the -segment_wrap option therein, but its' not an
> ideal solution.
>
> Kindly review this deprecation, with an appeal to revert the patchwork that
> removed the hls_wrap option.
>
> Warm regards,
>
> Dennis.
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