[FFmpeg-trac] #2235(undetermined:new): Subtitles do not seek

[FFmpeg]

#2235: Subtitles do not seek
-------------------------------------+-------------------------------------
             Reporter:  SubJunk      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by SubJunk):

 Hi cehoyos, thanks for the quick reply :) Here's the complete output:

 ffmpeg -ss 100 -i input.mp4 -vf "subtitles=input.srt" -an -f mpeg2video
 output.mpeg
 ffmpeg version N-49527-g985e93a Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Feb  1 2013 18:41:39 with gcc 4.7.2 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r
 --enable-gnutls --enable-libass --enable-libbluray --enable-libcaca
 --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-
 libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-librtmp --enable-libschroedinger --enable-
 libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc
 --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-
 libx264 --enable-libxavs --enable-libxvid --enable-zlib
   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 'input.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: isom
     creation_time   : 2011-01-27 13:06:05
   Duration: 01:54:43.95, start: 0.000000, bitrate: 1715 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 720x384 [SAR 1:1 DAR 15:8], 1583 kb/s, 29.97 fps, 29.97 tbr, 30k tbn,
 59.94 tbc
     Metadata:
       creation_time   : 2011-01-26 23:52:45
       handler_name    : GPAC ISO Video Handler
     Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo,
 fltp, 128 kb/s
     Metadata:
       creation_time   : 2011-01-27 13:08:22
       handler_name    : GPAC ISO Audio Handler
 [srt @ 0556d140] Estimating duration from bitrate, this may be inaccurate
 Output #0, mpeg2video, to 'output.mpeg':
   Metadata:
     major_brand     : isom
     minor_version   : 1
     compatible_brands: isom
     encoder         : Lavf54.61.104
     Stream #0:0(und): Video: mpeg2video, yuv420p, 720x384 [SAR 1:1 DAR
 15:8], q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
     Metadata:
       creation_time   : 2011-01-26 23:52:45
       handler_name    : GPAC ISO Video Handler
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 -> mpeg2video)
 Press [q] to stop, [?] for help
 [h264 @ 05552380] mmco: unref short failure
 [h264 @ 05552380] Missing reference picture, default is 65508
  Last    Last messa message repeated 1 times
 [h264 @ 055527a0] mmco: unref short failure
 [h264 @ 05552380] Missing reference picture, default is 65508
 [h264 @ 05552fa0] mmco: unref short failure
 [Parsed_subtitles_0 @ 00308780] Neither PlayResX nor PlayResY defined.
 Assuming 384x288
 frame=203315 fps=1170 q=31.0 Lsize=  434006kB time=01:53:03.91 bitrate=
 524.1kbits/s dup=0 drop=1
 video:434006kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 0.000000%

 I've tried it with a few different files (mp4 and mkv, all with srt
 subtitles) and got the same result each time.
 If there's any more info that would be helpful please let me know :)

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2235#comment:2>
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