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-rw-r--r--libavformat/movenc.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index c401862179..c0efa3a96d 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -747,6 +747,19 @@ static int mov_write_subtitle_tag(ByteIOContext *pb, MOVTrack *track)
return updateSize(pb, pos);
}
+static int mov_write_pasp_tag(ByteIOContext *pb, MOVTrack *track)
+{
+ AVRational sar;
+ av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
+ track->enc->sample_aspect_ratio.den, INT_MAX);
+
+ put_be32(pb, 16);
+ put_tag(pb, "pasp");
+ put_be32(pb, track->enc->sample_aspect_ratio.num);
+ put_be32(pb, track->enc->sample_aspect_ratio.den);
+ return 16;
+}
+
static int mov_write_video_tag(ByteIOContext *pb, MOVTrack *track)
{
int64_t pos = url_ftell(pb);
@@ -808,6 +821,12 @@ static int mov_write_video_tag(ByteIOContext *pb, MOVTrack *track)
} else if(track->vosLen > 0)
mov_write_glbl_tag(pb, track);
+ if (track->mode == MODE_MOV &&
+ track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
+ track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
+ mov_write_pasp_tag(pb, track);
+ }
+
return updateSize(pb, pos);
}