lavc: Use a stricter check for the color properties values

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

libavcodec/h264_ps.c

@@ -191,11 +191,13 @@ static inline int decode_vui_parameters(GetBitContext *gb, AVCodecContext *avctx
             sps->color_primaries = get_bits(gb, 8); /* colour_primaries */
             sps->color_trc       = get_bits(gb, 8); /* transfer_characteristics */
             sps->colorspace      = get_bits(gb, 8); /* matrix_coefficients */
-            if (sps->color_primaries >= AVCOL_PRI_NB)
+
+            // Set invalid values to "unspecified"
+            if (!av_color_primaries_name(sps->color_primaries))
                 sps->color_primaries = AVCOL_PRI_UNSPECIFIED;
-            if (sps->color_trc >= AVCOL_TRC_NB)
+            if (!av_color_transfer_name(sps->color_trc))
                 sps->color_trc = AVCOL_TRC_UNSPECIFIED;
-            if (sps->colorspace >= AVCOL_SPC_NB)
+            if (!av_color_space_name(sps->colorspace))
                 sps->colorspace = AVCOL_SPC_UNSPECIFIED;
         }
     }

libavcodec/hevc_ps.c

@@ -497,11 +497,11 @@ static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
             vui->matrix_coeffs           = get_bits(gb, 8);
 
             // Set invalid values to "unspecified"
-            if (vui->colour_primaries >= AVCOL_PRI_NB)
+            if (!av_color_primaries_name(vui->colour_primaries))
                 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
-            if (vui->transfer_characteristic >= AVCOL_TRC_NB)
+            if (!av_color_transfer_name(vui->transfer_characteristic))
                 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
-            if (vui->matrix_coeffs >= AVCOL_SPC_NB)
+            if (!av_color_space_name(vui->matrix_coeffs))
                 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
         }
     }