[FFmpeg-trac] #3059(ffmpeg:open): Logfile append instead of overwrite

[FFmpeg]

#3059: Logfile append instead of overwrite
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             Reporter:  spookybathtub  |                    Owner:
                 Type:  enhancement    |                   Status:  open
             Priority:  wish           |                Component:  ffmpeg
              Version:  git-master     |               Resolution:
             Keywords:                 |               Blocked By:
             Blocking:                 |  Reproduced by developer:  0
Analyzed by developer:  0              |
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Comment (by spookybathtub):

 It would be useful in any script which calls ffmpeg multiple times.  For
 example, I have a bash script to transcode several video clips when called
 from a command-line.  This particular script suppresses most of the
 console output by using `-loglevel warning -stats`.  This way, the user
 sees a small progress indicator, without a flood of information.  In case
 of some encode problem, it would be nice to have the full log available to
 see.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3059#comment:3>
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