With video_signal_type_present_flag set but colour_description_present_flag
unset the colour fields would not have had their correct values inferred.
---
libavcodec/cbs_h264_syntax_template.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/cbs_h264_syntax_template.c
b/libavcodec/cbs_h264_syntax_template.c
index 26be6e590f..1671a15d33 100644
--- a/libavcodec/cbs_h264_syntax_template.c
+++ b/libavcodec/cbs_h264_syntax_template.c
@@ -137,6 +137,10 @@ static int FUNC(vui_parameters)(CodedBitstreamContext
*ctx, RWContext *rw,
ub(8, colour_primaries);
ub(8, transfer_characteristics);
ub(8, matrix_coefficients);
+ } else {
+ infer(colour_primaries, 2);
+ infer(transfer_characteristics, 2);
+ infer(matrix_coefficients, 2);
}
} else {
infer(video_format, 5);
--
2.20.1
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