[FFmpeg-devel] [PATCH] Nvidia NVENC 10-bit HEVC encoding and rate control lookahead support
ovcollyer at mac.com
Wed Aug 24 09:43:26 EEST 2016
> On 24 Aug 2016, at 08:31, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> 2016-08-23 22:22 GMT+02:00 Oliver Collyer <ovcollyer at mac.com>:
>>> On 23 Aug 2016, at 21:21, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
>>> 2016-08-23 19:10 GMT+02:00 Oliver Collyer <ovcollyer at mac.com>:
>>>> + AV_PIX_FMT_YUV420P10LE,
>>> I know this is theoretical but the Nvidia header seems to indicate
>>> native endianness to me, so this should be AV_PIX_FMT_YUV420P10
>>>> + AV_PIX_FMT_YUV444P10LE
>>> But after reading the rest of the patch:
>>> Shouldn't this be AV_PIX_FMT_YUV444P16?
>> How so - the Nvidia doc is stating that the encoder is taking 10 bits per
>> component, not 16?
> AV_PIX_FMT_YUV444P16 should not need any conversion and therefore
> be measurably faster, the least significant bits are ignored.
> Please test and report back.
Yes, I can confirm AV_PIX_FMT_YUV444P16 works fine so I can now ditch the conversion and do a straight plane copy.
> Carl Eugen
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