[FFmpeg-trac] #6504(undetermined:new): Decklink device handling broken after 2017-05-30?

FFmpeg trac at avcodec.org
Thu Jun 29 11:05:25 EEST 2017

#6504: Decklink device handling broken after 2017-05-30?
             Reporter:  BlackScreen  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  decklink     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 Summary of the bug:
 I use FFmpeg to capture video and audio from a Decklink card.
 I am building FFmpeg myself with the media-autobuild_suite
 I keep old versions for myself for backup purposes. So long I did not have
 any issues using those builds for capturing from a Decklink card.
 But since recently I saw that the handling of the Decklink card seems to
 be broken. I could narrow it down (from my backups) to a timespan between
 2017-05-30 and 2017-06-16 where something changed that broke it. The old
 version (2017-05-30) does work, the newer ones, including the latest, do
 not work.
 I have attached the log files for the builds I had at hand to test.

 How to reproduce:
 % ffmpeg -v 9 -loglevel 99 -f decklink -list_devices 1 -i dummy -report
 ffmpeg version N-86494-g18f09524f7 (and newer)
 built on 2017-06-16

Ticket URL: <https://trac.ffmpeg.org/ticket/6504>
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