[FFmpeg-devel] [PATCH V3] lavc/vaapi_encode_h264: Enable MB rate control.
mypopydev at gmail.com
Fri May 19 02:43:24 EEST 2017
On 2017/5/14 12:26, Jun Zhao wrote:
> V3: - Fix build error with old VAAPI version.
> V2: - Refine the name/value type to mb_rate_control/bool.
> - Only supported GEN9+ (SKL/APL/KBL/...)
> - i965 driver default use frame-level rate control algorithm (generate the QP for each frame),
> when enable mb_rate_control, it's will enable the MB-level RC algorithm (generate the QP for each MB).
> - enables MB-level bitrate control that generally improves subjective visual quality,
> but have negative impact on performance and objective visual quality metric.
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