[FFmpeg-trac] #2496(undetermined:open): seek swf file failed

[FFmpeg]

#2496: seek swf file failed
-------------------------------------+-------------------------------------
             Reporter:  hxuanyu      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  swf seek     |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  1
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * status:  new => open
 * version:  unspecified => git-master
 * component:  FFplay => undetermined
 * reproduced:  0 => 1


Comment:

 The input sample plays for 60 seconds and contains more than 100
 keyframes.
 {{{
 $ ffmpeg -ss 19 -i big_buck_bunny.swf out.avi
 ffmpeg version N-52413-gad56535 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Apr 23 2013 16:00:56 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --disable-indev=jack
   libavutil      52. 27.100 / 52. 27.100
   libavcodec     55.  6.100 / 55.  6.100
   libavformat    55.  3.100 / 55.  3.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 60.101 /  3. 60.101
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 [swf @ 0x2dd9780] max_analyze_duration 5000000 reached at 5008151
 microseconds
 [swf @ 0x2dd9780] Estimating duration from bitrate, this may be inaccurate
 big_buck_bunny.swf: could not seek to position 19.000
 Input #0, swf, from 'big_buck_bunny.swf':
   Duration: 00:06:30.11, start: 0.000000, bitrate: 47 kb/s
     Stream #0:0: Audio: mp3, 22050 Hz, stereo, s16p, 48 kb/s
     Stream #0:1: Video: flv1, yuv420p, 640x360, 23.98 fps, 47.92 tbr,
 23.96 tbn
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf55.3.100
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 640x360,
 q=2-31, 200 kb/s, 47.92 tbn, 47.92 tbc
     Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 22050 Hz, stereo, fltp,
 192 kb/s
 Stream mapping:
   Stream #0:1 -> #0:0 (flv -> mpeg4)
   Stream #0:0 -> #0:1 (mp3 -> ac3)
 Press [q] to stop, [?] for help
 frame=    0 fps=0.0 q=0.0 Lsize=      10kB time=00:00:00.00 bitrate=N/A
 video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead inf%
 Output file is empty, nothing was encoded (check -ss / -t / -frames
 parameters if used)
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2496#comment:1>
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