mov: set audio service type for AC-3 from bitstream mode in the 'dac3' atom.

This commit is contained in:
Justin Ruggles 2011-03-24 12:42:05 -04:00
parent be18738801
commit eb81cf860c

View File

@ -492,16 +492,20 @@ static int mov_read_esds(MOVContext *c, AVIOContext *pb, MOVAtom atom)
static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom) static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{ {
AVStream *st; AVStream *st;
int ac3info, acmod, lfeon; int ac3info, acmod, lfeon, bsmod;
if (c->fc->nb_streams < 1) if (c->fc->nb_streams < 1)
return 0; return 0;
st = c->fc->streams[c->fc->nb_streams-1]; st = c->fc->streams[c->fc->nb_streams-1];
ac3info = avio_rb24(pb); ac3info = avio_rb24(pb);
bsmod = (ac3info >> 14) & 0x7;
acmod = (ac3info >> 11) & 0x7; acmod = (ac3info >> 11) & 0x7;
lfeon = (ac3info >> 10) & 0x1; lfeon = (ac3info >> 10) & 0x1;
st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon; st->codec->channels = ((int[]){2,1,2,3,3,4,4,5})[acmod] + lfeon;
st->codec->audio_service_type = bsmod;
if (st->codec->channels > 1 && bsmod == 0x7)
st->codec->audio_service_type = AV_AUDIO_SERVICE_TYPE_KARAOKE;
return 0; return 0;
} }