[FFmpeg-trac] #1345(undetermined:new): ffmpeg loops tiny flac (av_read_frame duplicates frames?)

[FFmpeg]

#1345: ffmpeg loops tiny flac (av_read_frame duplicates frames?)
-------------------------------------+-------------------------------------
             Reporter:  uwwint       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  tiny flac    |               Blocked By:
  loop                               |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I have a tiny flac. When I transcode via ffmpeg_g into an mp3 the sound is
 looped.


 {{{
 ./ffmpeg_g -i sinemarker.1.flac test.mp3
 ffmpeg version N-40960-ge15f128 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on May 23 2012 12:59:16 with gcc 4.4.3
   configuration: --enable-nonfree --enable-shared --enable-libmp3lame
 --prefix=/home/uwe/Dokumente/ffmpeg/ffmpeg.git/installDir
   libavutil      51. 53.100 / 51. 53.100
   libavcodec     54. 23.100 / 54. 23.100
   libavformat    54.  6.100 / 54.  6.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 76.100 /  2. 76.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
 Input #0, flac, from 'sinemarker.1.flac':
   Duration: 00:00:00.50, bitrate: 495 kb/s
     Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
 Output #0, mp3, to 'test.mp3':
   Metadata:
     TSSE            : Lavf54.6.100
     Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16
 Stream mapping:
   Stream #0:0 -> #0:0 (flac -> libmp3lame)
 Press [q] to stop, [?] for help
 Multiple frames in a packet from stream 0
 DTS 4096, next:592874 st:0 invalid dropping
 PTS 4096, next:592874 invalid dropping st:0
 DTS 8192, next:1185748 st:0 invalid dropping
 PTS 8192, next:1185748 invalid dropping st:0
 DTS 12288, next:1778622 st:0 invalid dropping
 PTS 12288, next:1778622 invalid dropping st:0
 DTS 16384, next:2371496 st:0 invalid dropping
 PTS 16384, next:2371496 invalid dropping st:0
 DTS 20480, next:2964370 st:0 invalid dropping
 PTS 20480, next:2964370 invalid dropping st:0
 [libmp3lame @ 0x13e25c0] Trying to remove 1152 samples, but que empty
 size=      48kB time=00:00:03.03 bitrate= 129.6kbits/s
 video:0kB audio:48kB global headers:0kB muxing overhead 0.388540%
 }}}

 Then compare flac with mp3 in audacity/some other program that doesn't use
 ffmpeg (mplayer doesn't work). The mp3 contains multiple loops of the
 flac.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1345>
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