diff options
Diffstat (limited to 'libavformat/mp3dec.c')
| -rw-r--r-- | libavformat/mp3dec.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c index 7d0c2fb6ed..48deefd126 100644 --- a/libavformat/mp3dec.c +++ b/libavformat/mp3dec.c @@ -128,6 +128,7 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base) const int64_t xing_offtbl[2][2] = {{32, 17}, {17,9}}; MPADecodeHeader c; int vbrtag_size = 0; + int is_cbr; v = avio_rb32(s->pb); if(ff_mpa_check_header(v) < 0) @@ -143,7 +144,8 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base) /* Check for Xing / Info tag */ avio_skip(s->pb, xing_offtbl[c.lsf == 1][c.nb_channels == 1]); v = avio_rb32(s->pb); - if(v == MKBETAG('X', 'i', 'n', 'g') || v == MKBETAG('I', 'n', 'f', 'o')) { + is_cbr = v == MKBETAG('I', 'n', 'f', 'o'); + if (v == MKBETAG('X', 'i', 'n', 'g') || is_cbr) { v = avio_rb32(s->pb); if(v & XING_FLAG_FRAMES) frames = avio_rb32(s->pb); @@ -176,7 +178,7 @@ static int mp3_parse_vbr_tags(AVFormatContext *s, AVStream *st, int64_t base) if(frames) st->duration = av_rescale_q(frames, (AVRational){spf, c.sample_rate}, st->time_base); - if(size && frames) + if (size && frames && !is_cbr) st->codec->bit_rate = av_rescale(size, 8 * c.sample_rate, frames * (int64_t)spf); return 0; |