[FFmpeg-trac] #7667(undetermined:new): Delete file before overwriting them.

[FFmpeg]

#7667: Delete file before overwriting them.
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             Reporter:  peterf81     |                     Type:
               Status:  new          |  enhancement
            Component:               |                 Priority:  normal
  undetermined                       |                  Version:
             Keywords:  Undeleter,   |  unspecified
  truncate                           |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 If a file is about to be overwritten by ffmpeg, it should be first deleted
 and then created. This can help recover the original file by undelete, if
 it was accidentaly deleted by specifying wrong ffmpeg parameters. Ffmpeg
 deleted an important video and it cannot be recovered because it truncated
 the file, not deleted it before.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7667>
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