Re: [FFmpeg-devel] [PATCH] lavc/qsvenc: disable h264 look_ahead by default

2018-03-06 Thread Li, Zhong
> From: ffmpeg-devel [mailto:ffmpeg-devel-boun...@ffmpeg.org] On Behalf > Of Mark Thompson > Sent: Tuesday, March 6, 2018 8:32 AM > To: ffmpeg-devel@ffmpeg.org > Subject: Re: [FFmpeg-devel] [PATCH] lavc/qsvenc: disable h264 look_ahead > by default > > On 01/03/

Re: [FFmpeg-devel] [PATCH] lavc/qsvenc: disable h264 look_ahead by default

2018-03-05 Thread Mark Thompson
On 01/03/18 05:20, Zhong Li wrote: > Look_ahead can provide quality improvements, but would better disable it by > default due to some reasons: > 1. It is only available for some codecs (e.g. HEVC is not supported) on Intel >Haswell and plus platforms. Thus means it will be failed on some plat

[FFmpeg-devel] [PATCH] lavc/qsvenc: disable h264 look_ahead by default

2018-02-28 Thread Zhong Li
Look_ahead can provide quality improvements, but would better disable it by default due to some reasons: 1. It is only available for some codecs (e.g. HEVC is not supported) on Intel Haswell and plus platforms. Thus means it will be failed on some platforms. 2. It significantly increases encodi