Merge commit '1a02e786'

* commit '1a02e786':
  vc1: initialize color properties

See: ddabecbbMerged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/vc1.c

@@ -496,10 +496,9 @@ static int decode_sequence_header_adv(VC1Context *v, GetBitContext *gb)
         }
 
         if (get_bits1(gb)) {
-            v->s.avctx->color_primaries = get_bits(gb, 8);
-            v->s.avctx->color_trc       = get_bits(gb, 8);
-            v->s.avctx->colorspace      = get_bits(gb, 8);
-            v->s.avctx->color_range     = AVCOL_RANGE_MPEG;
+            v->color_prim    = get_bits(gb, 8);
+            v->transfer_char = get_bits(gb, 8);
+            v->matrix_coef   = get_bits(gb, 8);
         }
     }
 

libavcodec/vc1.h

@@ -203,6 +203,9 @@ typedef struct VC1Context{
     int panscanflag;      ///< NUMPANSCANWIN, TOPLEFT{X,Y}, BOTRIGHT{X,Y} present
     int refdist_flag;     ///< REFDIST syntax element present in II, IP, PI or PP field picture headers
     int extended_dmv;     ///< Additional extended dmv range at P/B frame-level
+    int color_prim;       ///< 8bits, chroma coordinates of the color primaries
+    int transfer_char;    ///< 8bits, Opto-electronic transfer characteristics
+    int matrix_coef;      ///< 8bits, Color primaries->YCbCr transform matrix
     int hrd_param_flag;   ///< Presence of Hypothetical Reference
                           ///< Decoder parameters
     int psf;              ///< Progressive Segmented Frame

libavcodec/vc1dec.c

@@ -527,6 +527,13 @@ static av_cold int vc1_decode_init(AVCodecContext *avctx)
 
     avctx->has_b_frames = !!avctx->max_b_frames;
 
+    if (v->color_prim == 1 || v->color_prim == 5 || v->color_prim == 6)
+        avctx->color_primaries = v->color_prim;
+    if (v->transfer_char == 1 || v->transfer_char == 7)
+        avctx->color_trc = v->transfer_char;
+    if (v->matrix_coef == 1 || v->matrix_coef == 6 || v->matrix_coef == 7)
+        avctx->colorspace = v->matrix_coef;
+
     s->mb_width  = (avctx->coded_width  + 15) >> 4;
     s->mb_height = (avctx->coded_height + 15) >> 4;