avcodec/h264: keep track of which frames used gray references

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

1 files changed, 4 insertions, 0 deletions

diff --git a/libavcodec/h264dec.h b/libavcodec/h264dec.h
index ede5195172..366626c056 100644
--- a/libavcodec/h264dec.h
+++ b/libavcodec/h264dec.h
@@ -154,6 +154,8 @@ typedef struct H264Picture {
 
     /// RefStruct reference; its pointee is shared between decoding threads.
     atomic_int *decode_error_flags;
+
+    int gray;
 } H264Picture;
 
 typedef struct H264Ref {
@@ -567,6 +569,8 @@ typedef struct H264Context {
     struct FFRefStructPool *ref_index_pool;
     struct FFRefStructPool *decode_error_flags_pool;
     int ref2frm[MAX_SLICES][2][64];     ///< reference to frame number lists, used in the loop filter, the first 2 are for -2,-1
+
+    int non_gray;                       ///< Did we encounter a intra frame after a gray gap frame
 } H264Context;
 
 extern const uint16_t ff_h264_mb_sizes[4];