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move version specific parsing code before codec specific code, will be needed

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Originally committed as revision 14504 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2008-08-02 03:35:43 +00:00
parent abdff64682
commit 5ef3ad59f2
1 changed files with 20 additions and 20 deletions
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40
libavformat/mov.c
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@ -848,6 +848,26 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
st->codec->sample_rate = ((get_be32(pb) >> 16));
//Read QT version 1 fields. In version 0 these do not exist.
dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
if(!c->isom) {
if(version==1) {
sc->samples_per_frame = get_be32(pb);
get_be32(pb); /* bytes per packet */
sc->bytes_per_frame = get_be32(pb);
get_be32(pb); /* bytes per sample */
} else if(version==2) {
get_be32(pb); /* sizeof struct only */
st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
st->codec->channels = get_be32(pb);
get_be32(pb); /* always 0x7F000000 */
get_be32(pb); /* bits per channel if sound is uncompressed */
get_be32(pb); /* lcpm format specific flag */
get_be32(pb); /* bytes per audio packet if constant */
get_be32(pb); /* lpcm frames per audio packet if constant */
}
}
switch (st->codec->codec_id) {
case CODEC_ID_PCM_S8:
case CODEC_ID_PCM_U8:
@ -882,26 +902,6 @@ static int mov_read_stsd(MOVContext *c, ByteIOContext *pb, MOV_atom_t atom)
break;
}
//Read QT version 1 fields. In version 0 these do not exist.
dprintf(c->fc, "version =%d, isom =%d\n",version,c->isom);
if(!c->isom) {
if(version==1) {
sc->samples_per_frame = get_be32(pb);
get_be32(pb); /* bytes per packet */
sc->bytes_per_frame = get_be32(pb);
get_be32(pb); /* bytes per sample */
} else if(version==2) {
get_be32(pb); /* sizeof struct only */
st->codec->sample_rate = av_int2dbl(get_be64(pb)); /* float 64 */
st->codec->channels = get_be32(pb);
get_be32(pb); /* always 0x7F000000 */
get_be32(pb); /* bits per channel if sound is uncompressed */
get_be32(pb); /* lcpm format specific flag */
get_be32(pb); /* bytes per audio packet if constant */
get_be32(pb); /* lpcm frames per audio packet if constant */
}
}
bits_per_sample = av_get_bits_per_sample(st->codec->codec_id);
if (bits_per_sample) {
st->codec->bits_per_sample = bits_per_sample;