[SCM] libav/experimental: sample_rate value is not always correct (is there anything in quicktime which is?) so try to guess it from time_scale
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 15:45:01 UTC 2013
The following commit has been merged in the experimental branch:
commit 302c389e4f825395e2580d6303ad26eb6ac0dffa
Author: Michael Niedermayer <michaelni at gmx.at>
Date: Sun Sep 4 21:04:25 2005 +0000
sample_rate value is not always correct (is there anything in quicktime which is?) so try to guess it from time_scale
Originally committed as revision 4558 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 72f3ee3..e050ddd 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -781,7 +781,7 @@ static int mov_read_stco(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
{
AVStream *st = c->fc->streams[c->fc->nb_streams-1];
- //MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
+ MOVStreamContext *sc = (MOVStreamContext *)st->priv_data;
int entries, frames_per_sample;
uint32_t format;
uint8_t codec_name[32];
@@ -1071,6 +1071,9 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
st->codec->bits_per_sample = get_be16(pb); /* bits per sample */
get_be32(pb);
st->codec->sample_rate = get_be16(pb); /* sample rate, not always correct */
+ if(st->codec->sample_rate == 1) //nonsese rate? -> ignore
+ st->codec->sample_rate= 0;
+
get_be16(pb);
c->mp4=1;
@@ -1196,6 +1199,10 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
}
}
}
+
+ if(st->codec->codec_type==CODEC_TYPE_AUDIO && st->codec->sample_rate==0 && sc->time_scale>1) {
+ st->codec->sample_rate= sc->time_scale;
+ }
return 0;
}
--
Libav/FFmpeg packaging
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