Fixes #10617
---
libavformat/smacker.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/libavformat/smacker.c b/libavformat/smacker.c
index 1d54e8e917..d04c8b91a6 100644
--- a/libavformat/smacker.c
+++ b/libavformat/smacker.c
@@ -34,6 +34,8 @@
#define SMACKER_PAL 0x01
#define SMACKER_FLAG_RING_FRAME 0x01
+#define SMACKER_FLAG_Y_INTERLACE (1 << 1)
+#define SMACKER_FLAG_Y_DOUBLE (1 << 2)
enum SAudFlags {
SMK_AUD_PACKED = 0x80,
@@ -144,6 +146,9 @@ static int smacker_read_header(AVFormatContext *s)
avpriv_set_pts_info(st, 33, pts_inc, tbase);
st->duration = smk->frames;
+ st->sample_aspect_ratio = (AVRational){ 1, 1 +
+ !!(flags & (SMACKER_FLAG_Y_INTERLACE | SMACKER_FLAG_Y_DOUBLE)) };
+
/* init video codec */
par = st->codecpar;
par->width = width;
--
2.42.0
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