[FFmpeg-trac] #2054(undetermined:closed): Specifying -ss before -i breaks the conversions

FFmpeg trac at avcodec.org
Sat Dec 22 18:28:02 CET 2012

#2054: Specifying -ss before -i breaks the conversions
             Reporter:  ramitbhalla  |                    Owner:
                 Type:  enhancement  |                   Status:  closed
             Priority:  wish         |                Component:
              Version:  git-master   |  undetermined
             Keywords:  mpegts       |               Resolution:  duplicate
  mpeg2video                         |               Blocked By:
  av_interleaved_write_frame         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
Changes (by cehoyos):

 * status:  new => closed
 * type:  defect => enhancement
 * component:  FFmpeg => undetermined
 * priority:  important => wish
 * keywords:   => mpegts mpeg2video av_interleaved_write_frame
 * resolution:   => duplicate


 Please understand that seeking before decoding and decoding / demuxing
 until a specific point in time ("putting -ss before or after -i") are
 completely different things that cannot be compared or used for comparison
 in a bug report. It is for example not a valid report to say "-ss before
 -i is less exact than -ss after -i", and the title for this ticket is also
 definitely invalid.

 You may report "some seeking values lead to 'first pts value must set'
 with -codec copy", but imo, this is just a duplicate of ticket #1979.

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2054#comment:1>
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