[FFmpeg-trac] #5573(undetermined:new): Incorrect duration when decoding raw G.729

[FFmpeg]

#5573: Incorrect duration when decoding raw G.729
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  minor      |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  g729
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 {{{
 $ ffmpeg -i fate-suite/act/REC03.act -acodec copy -map 0:0 -f rawvideo
 out.g729
 }}}
 {{{
 $ ffmpeg -i out.g729 out.wav
 ffmpeg version N-80026-g936751b Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      55. 24.100 / 55. 24.100
   libavcodec     57. 42.100 / 57. 42.100
   libavformat    57. 37.100 / 57. 37.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 45.100 /  6. 45.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 [g729 @ 0x2dc93a0] Estimating duration from bitrate, this may be
 inaccurate
 Guessed Channel Layout for  Input Stream #0.0 : mono
 Input #0, g729, from 'out.g729':
   Duration: 00:01:05.79, start: 0.000000, bitrate: 8 kb/s
     Stream #0:0: Audio: g729, 8000 Hz, 1 channels, s16
 [wav @ 0x2dcbf40] Using AVStream.codec to pass codec parameters to muxers
 is deprecated, use AVStream.codecpar instead.
 Output #0, wav, to 'out.wav':
   Metadata:
     ISFT            : Lavf57.37.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono,
 s16, 128 kb/s
     Metadata:
       encoder         : Lavc57.42.100 pcm_s16le
 Stream mapping:
   Stream #0:0 -> #0:0 (g729 (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 size=    1028kB time=00:00:00.83 bitrate=10119.2kbits/s speed=6.01x
 video:0kB audio:1028kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.007410%
 }}}
 Both input and output file have a duration of 65 seconds.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5573>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker