[FFmpeg-devel] [PATCH v2 1/4] avcodec/h2645_vui: Ensure color primaries/trc/space isn't reserved value

[Zhao Zhili]

From: Zhao Zhili <zhilizhao at tencent.com>

Fix error reported by swscaler:
Unsupported input (Operation not supported): fmt:yuv420p csp:unknown prim:reserved trc:bt709 -> fmt:yuv420p csp:bt709 prim:reserved trc:bt709
---
 libavcodec/h2645_vui.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/libavcodec/h2645_vui.c b/libavcodec/h2645_vui.c
index e5c7bf46f9..0e576c1563 100644
--- a/libavcodec/h2645_vui.c
+++ b/libavcodec/h2645_vui.c
@@ -67,11 +67,16 @@ void ff_h2645_decode_common_vui_params(GetBitContext *gb, H2645VUI *vui, void *l
             vui->matrix_coeffs            = get_bits(gb, 8);
 
             // Set invalid values to "unspecified"
-            if (!av_color_primaries_name(vui->colour_primaries))
+            if (vui->colour_primaries == AVCOL_PRI_RESERVED0 ||
+                vui->colour_primaries == AVCOL_PRI_RESERVED ||
+                !av_color_primaries_name(vui->colour_primaries))
                 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
-            if (!av_color_transfer_name(vui->transfer_characteristics))
+            if (vui->transfer_characteristics == AVCOL_TRC_RESERVED0 ||
+                vui->transfer_characteristics == AVCOL_TRC_RESERVED ||
+                !av_color_transfer_name(vui->transfer_characteristics))
                 vui->transfer_characteristics = AVCOL_TRC_UNSPECIFIED;
-            if (!av_color_space_name(vui->matrix_coeffs))
+            if (vui->matrix_coeffs == AVCOL_SPC_RESERVED ||
+                !av_color_space_name(vui->matrix_coeffs))
                 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
         }
     }
-- 
2.46.0