[FFmpeg-devel] [PATCH] fixes in mpeg audio parsing

[Yoav Steinberg]

Michael Niedermayer wrote:
> 
>> Index: mp3.c
>> ===================================================================
>> --- mp3.c	(revision 15776)
>> +++ mp3.c	(working copy)
>> @@ -402,18 +402,21 @@
>>  /**
>>   * Try to find Xing/Info/VBRI tags and compute duration from info therein
>>   */
>> -static void mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
>> +static void mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st)
>>  {
>>      uint32_t v, spf;
>>      int frames = -1; /* Total number of frames in file */
>>      const int64_t xing_offtbl[2][2] = {{32, 17}, {17,9}};
>>      MPADecodeContext c;
>> +    int vbrtag_size = 0;
>> +    int64_t base = url_ftell(s->pb);
>>  
>>      v = get_be32(s->pb);
>>      if(ff_mpa_check_header(v) < 0)
>>        return;
> 
> a return here will randomize the file position, and similarly will
> for other returns
take 2.
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