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lavf/mov: make invalid m{d,v}hd time_scale default to 1 instead of erroring out

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Some samples have their metadata track time_scale incorrectly set to 0
and the check introduced by a398f054fdb9b0f0b5a91c231fba6ce014143f71
prevents playback of those samples. Setting the time_scale to 1 fixes
playback.
This commit is contained in:
Matthieu Bouron 2017-05-11 15:16:22 +02:00
parent 3e38bf95c5
commit 6ee4b20f4a
1 changed files with 4 additions and 4 deletions
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8
libavformat/mov.c
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@ -1232,8 +1232,8 @@ static int mov_read_mdhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->time_scale = avio_rb32(pb);
if (sc->time_scale <= 0) {
av_log(c->fc, AV_LOG_ERROR, "Invalid mdhd time scale %d\n", sc->time_scale);
return AVERROR_INVALIDDATA;
av_log(c->fc, AV_LOG_ERROR, "Invalid mdhd time scale %d, defaulting to 1\n", sc->time_scale);
sc->time_scale = 1;
}
st->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
@ -1262,8 +1262,8 @@ static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
mov_metadata_creation_time(&c->fc->metadata, creation_time);
c->time_scale = avio_rb32(pb); /* time scale */
if (c->time_scale <= 0) {
av_log(c->fc, AV_LOG_ERROR, "Invalid mvhd time scale %d\n", c->time_scale);
return AVERROR_INVALIDDATA;
av_log(c->fc, AV_LOG_ERROR, "Invalid mvhd time scale %d, defaulting to 1\n", c->time_scale);
c->time_scale = 1;
}
av_log(c->fc, AV_LOG_TRACE, "time scale = %i\n", c->time_scale);