movenc: use the first cluster duration as the tfhd default duration

13 years ago · f3dab5fb6d
parent 681d17264f
commit f3dab5fb6d
1 changed files with 1 additions and 1 deletions
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@ -2215,7 +2215,7 @@ static int mov_write_tfhd_tag(AVIOContext *pb, MOVTrack *track,
    if (flags & MOV_TFHD_BASE_DATA_OFFSET)
        avio_wb64(pb, moof_offset);
    if (flags & MOV_TFHD_DEFAULT_DURATION) {
-        track->default_duration = track->audio_vbr ? track->enc->frame_size : 1;
+        track->default_duration = get_cluster_duration(track, 0);
        avio_wb32(pb, track->default_duration);
    }
    if (flags & MOV_TFHD_DEFAULT_SIZE) {