[FFmpeg-cvslog] lavc/vp8dsp: restrict RVI optimisations

Rémi Denis-Courmont git at videolan.org
Tue May 14 19:51:29 EEST 2024


ffmpeg | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Sat May 11 18:49:59 2024 +0300| [9d3f561721cd710bf403af991a0e36ccc9e8d8c8] | committer: Rémi Denis-Courmont

lavc/vp8dsp: restrict RVI optimisations

They are actually awfully slow if the CPU does not support misaligned
accesses natively, so only use them if misaligned accesses are fast.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9d3f561721cd710bf403af991a0e36ccc9e8d8c8
---

 libavcodec/riscv/vp8dsp_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/riscv/vp8dsp_init.c b/libavcodec/riscv/vp8dsp_init.c
index 39dc9a1b9d..31e8227fa4 100644
--- a/libavcodec/riscv/vp8dsp_init.c
+++ b/libavcodec/riscv/vp8dsp_init.c
@@ -45,7 +45,7 @@ av_cold void ff_vp78dsp_init_riscv(VP8DSPContext *c)
 {
 #if HAVE_RV
     int flags = av_get_cpu_flags();
-    if (flags & AV_CPU_FLAG_RVI) {
+    if (flags & AV_CPU_FLAG_RV_MISALIGNED) {
 #if __riscv_xlen >= 64
         c->put_vp8_epel_pixels_tab[0][0][0] = ff_put_vp8_pixels16_rvi;
         c->put_vp8_epel_pixels_tab[1][0][0] = ff_put_vp8_pixels8_rvi;



More information about the ffmpeg-cvslog mailing list