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Make frames unsigned.
Patch by Alexander Kojevnikov, alexander kojevnikov com Originally committed as revision 24540 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -83,7 +83,7 @@ static int mp3_read_probe(AVProbeData *p)
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static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
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{
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uint32_t v, spf;
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int frames = -1; /* Total number of frames in file */
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unsigned frames = 0; /* Total number of frames in file */
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unsigned size = 0; /* Total number of bytes in the stream */
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const int64_t xing_offtbl[2][2] = {{32, 17}, {17,9}};
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MPADecodeHeader c;
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@ -122,14 +122,14 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base)
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}
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}
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if(frames < 0 && !size)
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if(!frames && !size)
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return -1;
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/* Skip the vbr tag frame */
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url_fseek(s->pb, base + vbrtag_size, SEEK_SET);
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spf = c.lsf ? 576 : 1152; /* Samples per frame, layer 3 */
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if(frames >= 0)
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if(frames)
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st->duration = av_rescale_q(frames, (AVRational){spf, c.sample_rate},
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st->time_base);
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if(size)
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