[vlc-devel] [PATCH] [RFC] video_chroma: copy: use an 8KB cache line instead of 4KB

[Steve Lhomme]

Without this it's impossible to do some processing like splitting NV12 UV
planes, it requires double the resolution. In that case the code asserts on
assert(hstep > 0) in SSE_SplitPlanes().

--
this is an RFC as their might be side effects in using more memory by default
or a larger memory page.
---
 modules/video_chroma/copy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/video_chroma/copy.c b/modules/video_chroma/copy.c
index 444d47a7a7..98816d4686 100644
--- a/modules/video_chroma/copy.c
+++ b/modules/video_chroma/copy.c
@@ -35,7 +35,7 @@
 int CopyInitCache(copy_cache_t *cache, unsigned width)
 {
 #ifdef CAN_COMPILE_SSE2
-    cache->size = __MAX((width + 0x3f) & ~ 0x3f, 4096);
+    cache->size = __MAX((width + 0x3f) & ~ 0x3f, 8192);
     cache->buffer = vlc_memalign(64, cache->size);
     if (!cache->buffer)
         return VLC_EGENERIC;
-- 
2.12.1