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author | Michael Niedermayer <michael@niedermayer.cc> | 2016-06-11 02:41:45 +0200 |
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committer | Michael Niedermayer <michael@niedermayer.cc> | 2016-08-13 13:08:57 +0200 |
commit | 280587b4ab1044529fd99754b928d52a21046802 (patch) | |
tree | cd01cc7a3ff05f0a35c84aac323661780c47ae47 | |
parent | 5bf11223dd8eaee21d0230a285420abc2e248ecf (diff) | |
download | android_external_ffmpeg-280587b4ab1044529fd99754b928d52a21046802.tar.gz android_external_ffmpeg-280587b4ab1044529fd99754b928d52a21046802.tar.bz2 android_external_ffmpeg-280587b4ab1044529fd99754b928d52a21046802.zip |
avformat/mp3dec: Increase probe score slightly when the whole data from begin to end is mp3
Improves score for 1000-frames-of-noise-encoded-with-lame.mp3 without file extension
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 5fd73948bb684efcadc1f95fd2028b58d675f3ff)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r-- | libavformat/mp3dec.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavformat/mp3dec.c b/libavformat/mp3dec.c index c76b21ebd6..50bf52cf27 100644 --- a/libavformat/mp3dec.c +++ b/libavformat/mp3dec.c @@ -64,6 +64,7 @@ static int check(AVIOContext *pb, int64_t pos, uint32_t *header); static int mp3_read_probe(AVProbeData *p) { int max_frames, first_frames = 0; + int whole_used = 0; int frames, ret; uint32_t header; const uint8_t *buf, *buf0, *buf2, *end; @@ -88,8 +89,11 @@ static int mp3_read_probe(AVProbeData *p) buf2 += h.frame_size; } max_frames = FFMAX(max_frames, frames); - if(buf == buf0) + if(buf == buf0) { first_frames= frames; + if (buf2 == end + sizeof(uint32_t)) + whole_used = 1; + } } // keep this in sync with ac3 probe, both need to avoid // issues with MPEG-files! @@ -98,6 +102,7 @@ static int mp3_read_probe(AVProbeData *p) else if(max_frames>=4 && max_frames >= p->buf_size/10000) return AVPROBE_SCORE_EXTENSION / 2; else if(ff_id3v2_match(buf0, ID3v2_DEFAULT_MAGIC) && 2*ff_id3v2_tag_len(buf0) >= p->buf_size) return p->buf_size < PROBE_BUF_MAX ? AVPROBE_SCORE_EXTENSION / 4 : AVPROBE_SCORE_EXTENSION - 2; + else if(first_frames > 1 && whole_used) return 5; else if(max_frames>=1 && max_frames >= p->buf_size/10000) return 1; else return 0; //mpegps_mp3_unrecognized_format.mpg has max_frames=3 |