[FFmpeg-trac] #3598(undetermined:new): Too verbose output using concat demuxer with wav files

FFmpeg trac at avcodec.org
Mon Apr 28 09:28:00 CEST 2014


#3598: Too verbose output using concat demuxer with wav files
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  minor      |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  concat wav
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://thread.gmane.org/gmane.comp.video.ffmpeg.user/51553

 When using the concat demuxer to concatenate wav files, ffmpeg prints many
 warnings starting from the second file.
 {{{
 $ ffmpeg -f lavfi -i sine -t 0.5 out.wav
 }}}
 {{{
 $ echo "file out.wav" >concat.txt
 $ echo "file out.wav" >>concat.txt
 }}}
 {{{
 $ ffmpeg -f concat -i concat.txt -f null -
 ffmpeg version N-62757-g18af0ce Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Apr 28 2014 09:25:16 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      52. 79.100 / 52. 79.100
   libavcodec     55. 59.100 / 55. 59.100
   libavformat    55. 37.101 / 55. 37.101
   libavdevice    55. 13.100 / 55. 13.100
   libavfilter     4.  4.100 /  4.  4.100
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 18.100 /  0. 18.100
   libpostproc    52.  3.100 / 52.  3.100
 [concat @ 0x1a6cd00] Estimating duration from bitrate, this may be
 inaccurate
 Guessed Channel Layout for  Input Stream #0.0 : mono
 Input #0, concat, from 'concat.txt':
   Duration: 00:00:00.00, start: 0.000000, bitrate: 705 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono,
 s16, 705 kb/s
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf55.37.101
     Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le -> pcm_s16le)
 Press [q] to stop, [?] for help
 DTS -406750698235338944, next:499999 st:0 invalid dropping
 PTS -406750698235338944, next:499999 invalid dropping st:0
 DTS -406750698235336896, next:546438 st:0 invalid dropping
 PTS -406750698235336896, next:546438 invalid dropping st:0
 DTS -406750698235334848, next:592877 st:0 invalid dropping
 PTS -406750698235334848, next:592877 invalid dropping st:0
 DTS -406750698235332800, next:639316 st:0 invalid dropping
 PTS -406750698235332800, next:639316 invalid dropping st:0
 DTS -406750698235330752, next:685755 st:0 invalid dropping
 PTS -406750698235330752, next:685755 invalid dropping st:0
 DTS -406750698235328704, next:732194 st:0 invalid dropping
 PTS -406750698235328704, next:732194 invalid dropping st:0
 DTS -406750698235326656, next:778633 st:0 invalid dropping
 PTS -406750698235326656, next:778633 invalid dropping st:0
 DTS -406750698235324608, next:825072 st:0 invalid dropping
 PTS -406750698235324608, next:825072 invalid dropping st:0
 DTS -406750698235322560, next:871511 st:0 invalid dropping
 PTS -406750698235322560, next:871511 invalid dropping st:0
 DTS -406750698235320512, next:917950 st:0 invalid dropping
 PTS -406750698235320512, next:917950 invalid dropping st:0
 DTS -406750698235318464, next:964389 st:0 invalid dropping
 PTS -406750698235318464, next:964389 invalid dropping st:0
 size=N/A time=00:00:01.00 bitrate=N/A
 video:0kB audio:86kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 20914676107837440.000000%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3598>
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