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| author | Rémi Denis-Courmont <remi@remlab.net> | 2024-06-28 21:56:12 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2024-07-04 19:57:42 +0300 |
| commit | 5a6e333fc7ac514255bcd6b424924d92ef558bf0 (patch) | |
| tree | 94d07565f764cc0a52d30acaa44baa8af06253b5 /libavcodec/diracdsp.c | |
| parent | 03175b587cdc445d6d0de87ada0af0e6692e3dea (diff) | |
| download | ffmpeg-5a6e333fc7ac514255bcd6b424924d92ef558bf0.tar.gz | |
lavc/h264dsp: R-V V 8-bit luma loop filter
T-Head C908 (cycles):
h264_h_loop_filter_luma_8bpp_c: 297.5
h264_h_loop_filter_luma_8bpp_rvv_i32: 369.2
h264_v_loop_filter_luma_8bpp_c: 862.7
h264_v_loop_filter_luma_8bpp_rvv_i32: 199.7
Performance in the horizontal scenario seems worse than scalar. x86
SSE2 and AVX optimisations are similarly affected. This is presumably
caused by unlucky inputs from checkasm, such that the C code
short-circuits almost all filter calculations.
Diffstat (limited to 'libavcodec/diracdsp.c')
0 files changed, 0 insertions, 0 deletions