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authorZhong Li <zhong.li@intel.com>2019-06-18 15:52:29 +0800
committerZhong Li <zhong.li@intel.com>2019-06-25 11:33:12 +0800
commitdd662bbdd26e09957b3e67d3cde07b9468931e15 (patch)
treebb50edf7eadceafd29ab40e0611a49586d8337f4 /libavfilter/vf_signalstats.c
parent800f618a340d122754e7bdb82c22463cb9bd17b0 (diff)
downloadffmpeg-dd662bbdd26e09957b3e67d3cde07b9468931e15.tar.gz
lavf/qsv_scale: add scaling modes support
low_power mode will use a fixed HW engine (SFC), thus can offload EU usage. high quality mode will take EU usage (AVS sampler). Performance and EU usage (Render usage) comparsion on Intel(R) Xeon(R) CPU E3-1225 v5 @ 3.30GHz: High quality mode : ffmpeg -hwaccel qsv -c:v h264_qsv -i bbb_sunflower_1080p_30fps_normal_2000frames.h264 \ -vf scale_qsv=w=1280:h=736:mode=hq -f null - fps=389 RENDER usage: 28.10 (provided by MSDK metrics_monitor) Low Power mode: ffmpeg -hwaccel qsv -c:v h264_qsv -i ~/bbb_sunflower_1080p_30fps_normal_2000frames.h264 \ -vf scale_qsv=w=1280:h=736:mode=low_power -f null - fps=343 RENDER usage: 0.00 Low power mode (SFC) may be disabled if not supported by MSDK/Driver/HW, and replaced by AVS mode interanlly. Signed-off-by: Zhong Li <zhong.li@intel.com>
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