[vlc-devel] [PATCH] directx_va: add an extra buffer when decoding MPEG-2

[Steve Lhomme]

DXVA2 with deinterlacing seems to be using one of these buffers when it shouldn't

Fixes #18731
---
 modules/codec/avcodec/directx_va.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/codec/avcodec/directx_va.c b/modules/codec/avcodec/directx_va.c
index 1f51e4c227..031582f7b7 100644
--- a/modules/codec/avcodec/directx_va.c
+++ b/modules/codec/avcodec/directx_va.c
@@ -291,7 +291,7 @@ int directx_va_Setup(vlc_va_t *va, directx_sys_t *dx_sys, const AVCodecContext *
     }
 
     int surface_alignment = 16;
-    unsigned surface_count = 2;
+    unsigned surface_count = 2; //2;
 
     switch ( avctx->codec_id )
     {
@@ -299,7 +299,7 @@ int directx_va_Setup(vlc_va_t *va, directx_sys_t *dx_sys, const AVCodecContext *
         /* decoding MPEG-2 requires additional alignment on some Intel GPUs,
            but it causes issues for H.264 on certain AMD GPUs..... */
         surface_alignment = 32;
-        surface_count += 2;
+        surface_count += 2+1;
         break;
     case AV_CODEC_ID_HEVC:
         /* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
-- 
2.14.2