The specification doesn't say what should happen in this case.
Other implementations (e.g., Microsoft's Media Foundations) seem
to interpret this as 1/1.
Signed-off-by: Giovanni Mascellani <gmascell...@codeweavers.com>
---
libavcodec/evc_ps.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavcodec/evc_ps.c b/libavcodec/evc_ps.c
index 637572d324..6c871e965e 100644
--- a/libavcodec/evc_ps.c
+++ b/libavcodec/evc_ps.c
@@ -87,6 +87,10 @@ static int vui_parameters(GetBitContext *gb, VUIParameters
*vui)
if (vui->aspect_ratio_idc == EXTENDED_SAR) {
vui->sar_width = get_bits(gb, 16);
vui->sar_height = get_bits(gb, 16);
+ if (vui->sar_width == 0 || vui->sar_height == 0) {
+ vui->sar_width = 1;
+ vui->sar_height = 1;
+ }
}
}
vui->overscan_info_present_flag = get_bits(gb, 1);
--
2.45.2
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