[FFmpeg-trac] #2010(undetermined:open): ffplay can't seek in file that vlc and mplayer -demuxer mov can seek

FFmpeg trac at avcodec.org
Sat Feb 2 11:57:56 CET 2013


#2010: ffplay can't seek in file that vlc and mplayer -demuxer mov can seek
-------------------------------------+-------------------------------------
             Reporter:  gjdfgh       |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  seek mov     |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  1
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * status:  reopened => open
 * reproduced:  0 => 1


Comment:

 The following command lines produce output files that are horribly out-of-
 sync (video starts correctly at ~0:60, audio starts from 0:00)
 {{{
 $ ffmpeg -ss 60 -i quicktime.mov -map 0:1 -map 0:2 -qscale 2 -t 30 out.avi
 ffmpeg version N-49527-g985e93a Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Feb  2 2013 00:17:41 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --disable-indev=jack
   libavutil      52. 17.100 / 52. 17.100
   libavcodec     54. 91.100 / 54. 91.100
   libavformat    54. 61.104 / 54. 61.104
   libavdevice    54.  3.103 / 54.  3.103
   libavfilter     3. 35.100 /  3. 35.100
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'quicktime.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2012-10-23 08:59:57
   Duration: 01:07:41.43, start: 0.039000, bitrate: 599 kb/s
     Stream #0:0(eng): Video: png (png  / 0x20676E70), rgb24, 1020x553 [SAR
 72:72 DAR 1020:553], 4149 kb/s, 15 fps, 15 tbr, 600 tbn, 600 tbc
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
 fltp, 125 kb/s
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
     Stream #0:2(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 318x240, 381 kb/s, 25 fps, 25 tbr, 1k tbn, 2k tbc
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
     Stream #0:3(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 1024x768, 86 kb/s, 12 fps, 12 tbr, 600 tbn, 1200 tbc
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
 Please use -q:a or -q:v, -qscale is ambiguous
 Output #0, avi, to 'out.avi':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     ISFT            : Lavf54.61.104
     Stream #0:0(eng): Audio: ac3 ([0] [0][0] / 0x2000), 44100 Hz, stereo,
 fltp, 192 kb/s
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
     Stream #0:1(eng): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 318x240,
 q=2-31, 200 kb/s, 25 tbn, 25 tbc
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
 Stream mapping:
   Stream #0:1 -> #0:0 (aac -> ac3)
   Stream #0:2 -> #0:1 (h264 -> mpeg4)
 Press [q] to stop, [?] for help
 frame=  750 fps=0.0 q=2.0 Lsize=    4443kB time=00:00:30.02
 bitrate=1212.2kbits/s dup=0 drop=1496
 video:2245kB audio:2109kB subtitle:0 global headers:0kB muxing overhead
 2.025536%
 }}}
 {{{
 $ ffmpeg -ss 60 -i quicktime.mov -map 0:1 -map 0:3 -qscale 2 -t 30 out.avi
 ffmpeg version N-49527-g985e93a Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Feb  2 2013 00:17:41 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --disable-indev=jack
   libavutil      52. 17.100 / 52. 17.100
   libavcodec     54. 91.100 / 54. 91.100
   libavformat    54. 61.104 / 54. 61.104
   libavdevice    54.  3.103 / 54.  3.103
   libavfilter     3. 35.100 /  3. 35.100
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'quicktime.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2012-10-23 08:59:57
   Duration: 01:07:41.43, start: 0.039000, bitrate: 599 kb/s
     Stream #0:0(eng): Video: png (png  / 0x20676E70), rgb24, 1020x553 [SAR
 72:72 DAR 1020:553], 4149 kb/s, 15 fps, 15 tbr, 600 tbn, 600 tbc
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
     Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
 fltp, 125 kb/s
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
     Stream #0:2(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 318x240, 381 kb/s, 25 fps, 25 tbr, 1k tbn, 2k tbc
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
     Stream #0:3(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 1024x768, 86 kb/s, 12 fps, 12 tbr, 600 tbn, 1200 tbc
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
 Please use -q:a or -q:v, -qscale is ambiguous
 Output #0, avi, to 'out.avi':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     ISFT            : Lavf54.61.104
     Stream #0:0(eng): Audio: ac3 ([0] [0][0] / 0x2000), 44100 Hz, stereo,
 fltp, 192 kb/s
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
     Stream #0:1(eng): Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 1024x768,
 q=2-31, 200 kb/s, 12 tbn, 12 tbc
     Metadata:
       creation_time   : 2012-10-23 08:59:57
       handler_name    : Apple Alias Data Handler
 Stream mapping:
   Stream #0:1 -> #0:0 (aac -> ac3)
   Stream #0:3 -> #0:1 (h264 -> mpeg4)
 Press [q] to stop, [?] for help
 frame=  360 fps=0.0 q=2.0 Lsize=    3093kB time=00:00:30.02 bitrate=
 844.0kbits/s dup=0 drop=719
 video:905kB audio:2109kB subtitle:0 global headers:0kB muxing overhead
 2.618949%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2010#comment:8>
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