[FFmpeg-trac] #10707(undetermined:new): It spends too much time during the seek operation during video playback for mkv file

[FFmpeg]

#10707: It spends too much time during the seek operation during video playback for
mkv file
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             Reporter:  king.liu      |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  undetermined  |                  Version:  6.0
             Keywords:  mkv ,seek     |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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 Summary of the bug:
 libavformat/matroskadec.c
 In matroska_read_seek function,the av_index_search_timestamp operation
 cost too much time
 How to reproduce:
 This operation is not perfect，the audio track always has a lot of
 nb_index_entries,the "while" in matroska_read_seek will definitely be
 quite time-consuming. so,I think this issue need to be fixed.
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Ticket URL: <https://trac.ffmpeg.org/ticket/10707>
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