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mp3dec: skip ID3v2 tags

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cinap_lenrek 2012-02-14 15:42:58 +01:00
parent 72dc88448c
commit a57ad59bf0
1 changed files with 12 additions and 1 deletions
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13
sys/src/cmd/audio/mp3dec/main.c
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@ -129,10 +129,21 @@ static enum mad_flow
error(void *, struct mad_stream *stream, struct mad_frame *frame)
{
if(stream->error == MAD_ERROR_LOSTSYNC){
if(memcmp(stream->this_frame, "TAG", 3)==0){
uchar *p;
ulong n;
p = stream->this_frame;
if(memcmp(p, "TAG", 3)==0){
mad_stream_skip(stream, 128);
return MAD_FLOW_CONTINUE;
}
if(memcmp(p, "ID3", 3)==0){
if(((p[6] | p[7] | p[8] | p[9]) & 0x80) == 0){
n = p[9] | p[8]<<7 | p[7]<<14 | p[6]<<21;
mad_stream_skip(stream, n+10);
return MAD_FLOW_CONTINUE;
}
}
}
if(debug)
fprint(2, "#%lld: %s\n",