diff options
| -rw-r--r-- | libavcodec/mpegaudio_parser.c | 10 | ||||
| -rw-r--r-- | libavformat/mp3dec.c | 6 | ||||
| -rw-r--r-- | tests/ref/lavf-fate/mp3 | 4 |
3 files changed, 13 insertions, 7 deletions
diff --git a/libavcodec/mpegaudio_parser.c b/libavcodec/mpegaudio_parser.c index 5f97d711c6..bb4d75c066 100644 --- a/libavcodec/mpegaudio_parser.c +++ b/libavcodec/mpegaudio_parser.c @@ -30,6 +30,7 @@ typedef struct MpegAudioParseContext { int frame_size; uint32_t header; int header_count; + int no_bitrate; } MpegAudioParseContext; #define MPA_HEADER_SIZE 4 @@ -74,15 +75,18 @@ static int mpegaudio_parse(AVCodecParserContext *s1, if((state&SAME_HEADER_MASK) != (s->header&SAME_HEADER_MASK) && s->header) s->header_count= -3; s->header= state; - s->header_count++; s->frame_size = ret-4; - if (s->header_count > 1) { + if (s->header_count > 0) { avctx->sample_rate= sr; avctx->channels = channels; s1->duration = frame_size; - avctx->bit_rate = bit_rate; + if (s->no_bitrate || !avctx->bit_rate) { + s->no_bitrate = 1; + avctx->bit_rate += (bit_rate - avctx->bit_rate) / s->header_count; + } } + s->header_count++; break; } } diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c index c6d6987eaa..57e4ba33b1 100644 --- a/libavformat/mp3dec.c +++ b/libavformat/mp3dec.c @@ -120,6 +120,7 @@ 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) @@ -135,7 +136,8 @@ 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); @@ -180,7 +182,7 @@ 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; diff --git a/tests/ref/lavf-fate/mp3 b/tests/ref/lavf-fate/mp3 index 91e2b48c03..361314b2ca 100644 --- a/tests/ref/lavf-fate/mp3 +++ b/tests/ref/lavf-fate/mp3 @@ -1,3 +1,3 @@ -40a4e41ae74ec8dacdf02402831a6a58 *./tests/data/lavf-fate/lavf.mp3 -97230 ./tests/data/lavf-fate/lavf.mp3 +7fcf80c2059b5c058a6cdd2e2f798b6c *./tests/data/lavf-fate/lavf.mp3 +96366 ./tests/data/lavf-fate/lavf.mp3 ./tests/data/lavf-fate/lavf.mp3 CRC=0x6c9850fe |