[FFmpeg-trac] #4579(avformat:open): no duration for FLV file

[FFmpeg]

#4579: no duration for FLV file
-------------------------------------+-------------------------------------
             Reporter:  cgbug        |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  flv          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:   => flv regression
 * priority:  normal => important
 * status:  new => open
 * reproduced:  0 => 1


Old description:

> Sample:
> http://www.datafilehost.com/d/e2ed3397
>
> MediaInfo shows a duration of 2m20s.
>
> FFmpeg output:
> ffmpeg version N-72362-g7ae805d Copyright (c) 2000-2015 the FFmpeg
> developers
>   built with gcc 4.9.2 (GCC)
>   configuration: --enable-gpl --enable-version3 --disable-w32threads
> --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
> --enable-gnutls --enable-iconv --enable-libass --enable-libbluray
> --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype
> --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
> --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-
> libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp
> --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-
> libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc
> --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-
> libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-
> libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
>   libavutil      54. 25.100 / 54. 25.100
>   libavcodec     56. 41.100 / 56. 41.100
>   libavformat    56. 33.101 / 56. 33.101
>   libavdevice    56.  4.100 / 56.  4.100
>   libavfilter     5. 16.101 /  5. 16.101
>   libswscale      3.  1.101 /  3.  1.101
>   libswresample   1.  1.100 /  1.  1.100
>   libpostproc    53.  3.100 / 53.  3.100
> [flv @ 02d33700] Stream discovered after head already parsed
> [flv @ 02d33700] Negative cts, previous timestamps might be wrong.
> [flv @ 02d33700] Invalid timestamps stream=0, pts=-481, dts=0, size=1273
> [flv @ 02d33700] Invalid timestamps stream=0, pts=-364, dts=0, size=1478
> [flv @ 02d33700] Invalid timestamps stream=0, pts=-242, dts=0, size=1367
> [flv @ 02d33700] Invalid timestamps stream=0, pts=-113, dts=0, size=1330
> Input #0, flv, from 'no_duration.flv':
>   Metadata:
>     encoder         : Lavf52.93.0
>   Duration: 00:00:00.00, start: 0.000000, bitrate: N/A
>     Stream #0:0: Video: h264 (Baseline), yuv420p(tv), 640x360 [SAR 1:1
> DAR 16:9], 20 fps, 20 tbr, 1k tbn, 40 tbc
>     Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 48 kb/s
>     Stream #0:2: Subtitle: text
> At least one output file must be specified

New description:

 Sample:
 http://www.datafilehost.com/d/e2ed3397

 MediaInfo shows a duration of 2m20s.

 FFmpeg output:
 {{{
 ffmpeg version N-72362-g7ae805d Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.9.2 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
 --enable-gnutls --enable-iconv --enable-libass --enable-libbluray
 --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype
 --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
 --enable-libmfx --enable-libmp3lame --enable-libopencore-amrnb --enable-
 libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp
 --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-
 libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc
 --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-
 libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-
 libxavs --enable-libxvid --enable-lzma --enable-decklink --enable-zlib
   libavutil      54. 25.100 / 54. 25.100
   libavcodec     56. 41.100 / 56. 41.100
   libavformat    56. 33.101 / 56. 33.101
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 16.101 /  5. 16.101
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 [flv @ 02d33700] Stream discovered after head already parsed
 [flv @ 02d33700] Negative cts, previous timestamps might be wrong.
 [flv @ 02d33700] Invalid timestamps stream=0, pts=-481, dts=0, size=1273
 [flv @ 02d33700] Invalid timestamps stream=0, pts=-364, dts=0, size=1478
 [flv @ 02d33700] Invalid timestamps stream=0, pts=-242, dts=0, size=1367
 [flv @ 02d33700] Invalid timestamps stream=0, pts=-113, dts=0, size=1330
 Input #0, flv, from 'no_duration.flv':
   Metadata:
     encoder         : Lavf52.93.0
   Duration: 00:00:00.00, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: h264 (Baseline), yuv420p(tv), 640x360 [SAR 1:1 DAR
 16:9], 20 fps, 20 tbr, 1k tbn, 40 tbc
     Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 48 kb/s
     Stream #0:2: Subtitle: text
 At least one output file must be specified
 }}}

--

Comment:

 Regression since f3c51215cef3add584a9e939476baf1f07ab56a9

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4579#comment:1>
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