vaapi_decode: Make the frames context format selection more general

Examine the supported fourcc list manually and make the best choice, then
use the external attribute on the frames context to force that fourcc.

1 files changed, 2 insertions, 0 deletions

diff --git a/libavcodec/vaapi_decode.h b/libavcodec/vaapi_decode.h
index 1fcecac468..6b415dd1d3 100644
--- a/libavcodec/vaapi_decode.h
+++ b/libavcodec/vaapi_decode.h
@@ -72,6 +72,8 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
     enum AVPixelFormat    surface_format;
     int                   surface_count;
+
+    VASurfaceAttrib       pixel_format_attribute;
 } VAAPIDecodeContext;