diff options
Diffstat (limited to 'libavformat/avienc.c')
| -rw-r--r-- | libavformat/avienc.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/libavformat/avienc.c b/libavformat/avienc.c index 9b930f346a..04bc9e6964 100644 --- a/libavformat/avienc.c +++ b/libavformat/avienc.c @@ -237,6 +237,8 @@ static int avi_write_header(AVFormatContext *s) /* stream list */ for(i=0;i<n;i++) { + int gcd; + list2 = start_tag(pb, "LIST"); put_tag(pb, "strl"); @@ -252,8 +254,12 @@ static int avi_write_header(AVFormatContext *s) put_le16(pb, 0); /* priority */ put_le16(pb, 0); /* language */ put_le32(pb, 0); /* initial frame */ - put_le32(pb, 1000); /* scale */ - put_le32(pb, (1000 * stream->frame_rate) / FRAME_RATE_BASE); /* rate */ + + gcd= av_gcd(stream->frame_rate, FRAME_RATE_BASE); + + put_le32(pb, FRAME_RATE_BASE / gcd); /* scale */ + put_le32(pb, stream->frame_rate / gcd); /* rate */ + put_le32(pb, 0); /* start */ avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */ put_le32(pb, nb_frames); /* length, XXX: fill later */ |