On Wed, 13 Feb 2019 19:47:27 +0100 Timo Rothenpieler <t...@rothenpieler.org> wrote:
> On 13.02.2019 09:56, Roman Arzumanyan wrote: > > Hello, > > > > Please find attached patch, it adds HEVC YUV444P decoding support. > > > > Supported formats are AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P10LE, > > AV_PIX_FMT_YUV444P12LE. > > > > This feature requires Video Codec SDK 9. > > There is one big issue with this. > And that is, that ffmpeg expects the data for YUV444P10 and YUV444P12 > to be in the least significant bits. > Nvenc (and I hope/assume as does nvdec/cuvid) on the other hand put > the data into the most significant bits. > > As a workaround we have so far resorted to using the 16 bit pix_fmt > everywhere, as it happens to match up. > That has the issue of losing the information about the bit depth. > So far every attempt at solving it (like, adding new pix_fmts that > match what nvenc/dec uses) have not found consent. > I am reworking my previous patch series (from when I 'reverse engineered' the new enum values) to reflect the new SDK and I'll resend later this week. It will include updates for cuviddec. Thanks, --phil _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
