[FFmpeg-devel] [PATCH] nvenc: Make AUD optional for h264_nvenc and hevc_nvenc

Ali KIZIL alikizil at gmail.com
Fri Dec 30 06:48:02 EET 2016

2016-12-30 0:02 GMT+03:00 Miroslav Slugeň <thunder.m at email.cz>:

> Somebody changed AUD to active in NVENC by default, which is not very
> clever, libx264 also has this future disabled, so we should stay in sync
> with libx264 behavior.
> Enabled AUD will work only without B-frames. There is BUG in Nvidia NVENC
> when you use AUD for H264 with B-frames, it will return corrupted stream,
> because NVIDIA is inserting AUD type 0 (I-frame) before B-frames instead of
> AUD type 7 (any-frame).
> H264 encoded with B-frames and AUD active will not play for example on
> Panasonic TX-AS640E, other decoders just ignore wrong AUD type.
> --
> Miroslav Slugeň
AUD set to active by default was for LG and Sony like UHD TVs which could
not decode NVENC encoded HEVC MPEGTS properly.
If patch sets AUD active by default if there is no B-Frames (as so in NVENC
HEVC encoding), patch will be ok in common.

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