[FFmpeg-devel] [PATCH] libavcodec/libdav1d: add libdav1d_get_format method to call ff_get_format
peter.fruehberger at gmail.com
Thu Apr 11 20:41:20 EEST 2019
Am Do., 11. Apr. 2019 um 00:50 Uhr schrieb Hendrik Leppkes
<h.leppkes at gmail.com>:
> On Thu, Apr 11, 2019 at 12:39 AM Lukas Rusak <lorusak at gmail.com> wrote:
> > This will allow applications to properly init the decoder in
> > cases where a hardware decoder is tried first and and software
> > decoder is tried after by calling the get_format callback.
> > Even though there is no hardware pixel formats available
> > we still need to return the software pixel format.
> > Tested with Kodi by checking if multithreaded software
> > decoding is properly activated.
> > ---
> > libavcodec/libdav1d.c | 12 +++++++++++-
> > 1 file changed, 11 insertions(+), 1 deletion(-)
> This doesn't make sense to m e. get_format isn't called on a wide
> variety of decoders, and is only useful when there is a hardware
> format of any kind.
> Please elaborate what exactly this is trying to achieve.
Can you elaborate on how to use ffmpeg's API properly as a client to
decide if a decoder is a SW decoder and therefore howto properly setup
(multi-)threading, especially it cannot be changed once initialized?
> - Hendrik
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