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5 Commits

Author SHA1 Message Date
Andreas Rheinhardt 3c7dc9ea59 avfilter/vf_convolution: Fix compilation with sobel disabled 
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2024-05-07 23:53:26 +02:00
Stone Chen ef917950f0 avfilter/vf_convolution: add float user_rdiv[4] to allow user options to apply correctly 
Previously to support dynamic reconfigurations of the matrix string (e.g. 0m),
the rdiv values would always be cleared to 0.f, causing the rdiv to be
recalculated based on the new filter. This however had the side effect of
always ignoring user specified rdiv values.

Instead float user_rdiv[0] is added to ConvolutionContext which will store the
user specified rdiv values. Then the original rdiv array will store either the
user_rdiv or the automatically calculated 1/sum.

This fixes trac ticket #10294, #10867.

Signed-off-by: Stone Chen <chen.stonechen@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
 2024-02-25 10:49:37 +01:00
bwang30 3ab11dc5bb libavfilter/x86/vf_convolution: add sobel filter optimization and unit test with intel AVX512 VNNI 
This commit enabled assembly code with intel AVX512 VNNI and added unit test for sobel filter

sobel_c: 4537
sobel_avx512icl 2136

Signed-off-by: bwang30 <bin.wang@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
 2022-11-14 10:04:16 +08:00
Paul B Mahol c6ce18be08 avfilter/vf_convolution: add 16-column operation for filter_column() 
Based on patch by Xu Jun <xujunzz@sjtu.edu.cn>
 2021-02-13 14:45:48 +01:00
Ruiling Song 98e419cbf5 avfilter/vf_convolution: add x86 SIMD for filter_3x3() 
Tested using a simple command (apply edge enhance):
./ffmpeg_g -i ~/Downloads/bbb_sunflower_1080p_30fps_normal.mp4 \
 -vf convolution="0 0 0 -1 1 0 0 0 0:0 0 0 -1 1 0 0 0 0:0 0 0 -1 1 0 0 0 0:0 0 0 -1 1 0 0 0 0:5:1:1:1:0:128:128:128" \
 -an -vframes 1000 -f null /dev/null

The fps increase from 151 to 270 on my local machine.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
 2019-08-07 14:31:28 +08:00