Change #264232
| Category | ffmpeg |
| Changed by | zuxy <zuxy.meng@gmail.com> |
| Changed at | Sun 12 Apr 2026 04:11:46 |
| Repository | https://git.ffmpeg.org/ffmpeg.git |
| Project | ffmpeg |
| Branch | master |
| Revision | 56b97c03d4e68aa7ed42b5bfd470166a7235e1aa |
Comments
avcodec/x86/h264_intrapred: Replace pred8x8_top_dc_8_mmxext with SSE2 More about deprecating MMX than any performance gain; nearly identical performance numbers on my Zen 4 (1.36x vs c), but llvm-mca predicts >60% perf gain on Intel CPUs newer than Skylake. Signed-off-by: Zuxy Meng <zuxy.meng@gmail.com>
Changed files
- libavcodec/x86/h264_intrapred.asm
- libavcodec/x86/h264_intrapred_init.c