[FFmpeg-devel] [PATCH v2] avcodec/h264dec: Remove ff_h264_draw_horiz_band

Paul B Mahol onemda at gmail.com
Fri Jun 14 16:03:19 EEST 2024


On Fri, Jun 14, 2024 at 2:41 PM Kieran Kunhya via ffmpeg-devel <
ffmpeg-devel at ffmpeg.org> wrote:

> On Sun, Jun 9, 2024 at 2:39 AM Andreas Rheinhardt
> <andreas.rheinhardt at outlook.com> wrote:
> >
> > The H.264 decoder does not support draw_horiz_band (it does not have
> > the AV_CODEC_CAP_DRAW_HORIZ_BAND), making ff_h264_draw_horiz_band()
> > legally dead. The function here always calls draw_horiz_band
> > in coded order, although the default case is display order.
>
> Why would you want a low latency decode mode with reordering?
> I have no idea about hwaccel, but I believe with low latency encoded
> video this does work.
>

Since when?

See 0da71265d84b587c7159cd82708ca60ad050dd4c from 2003.

flag remain commented out from then to this day.


> Kieran
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