On Thu, 9 May 2019 at 03:06, Philip Langdale <phil...@overt.org> wrote:
> On Thu, 9 May 2019 02:53:01 +0300 > Dennis Mungai <dmng...@gmail.com> wrote: > > > > > > > The GPU matrix published by NVIDIA only indicates support for HEVC > > > @ 4:4:4 : > > > https://developer.nvidia.com/video-encode-decode-gpu-support-matrix. > > > That page indicates support for H.264 4:4:4 in NVENC (as from > > > GM107+) but information on decode capability on the same is absent. > > > > > > According to the commit: > > > > https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/83c7ac2e47efd96927127c1c385cdbb5fb53cb02 > > > > > > Only two codecs can handle 4:4:4: HEVC and MJPEG. > > > Would this imply that support for H.264 @ 4:4:4 is either > > > unsupported (in hardware, as implied above) or omitted in FFmpeg? > > > Please clarify. > > > > > > Thanks for your time, > > > > > > Dennis. > > No hardware supports decoding of 4:4:4 h.264 content, and I'm sure > nvidia will never add it, given that h.264 is now old news. They > support decoding 4:2:0 content that was encoded with the high444p > profile, for whatever that's worth, but that's why the profile is > listed as supported. > > --phil > Thanks for the clarification. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
