[FFmpeg-trac] #5183(avdevice:new): Build broken after DeckLink header cleanup

[FFmpeg]

#5183: Build broken after DeckLink header cleanup
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             Reporter:  laurfb       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avdevice
              Version:  git-master   |               Resolution:
             Keywords:  decklink     |               Blocked By:
  regression                         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by Timothy_Gu):

 I believe the most important error is not copied: that is,
 [https://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=61fb70c3866b19dccf473ad4e5ede79d117e8e1c;hp=bd4d192081230b217ecab14d39daf06f40067191#patch2
 the change in decklink_common.h] which erroneously removed the inclusion
 of `DeckLinkAPIVersion.h`, thus leading to
 `BLACKMAGIC_DECKLINK_API_VERSION` being undefined, and
 [https://git.videolan.org/?p=ffmpeg.git;a=blob;f=libavdevice/decklink_common.h;h=c7e3ef2e395599105ae5ac42dbc2133b540bd0f7;hb=61fb70c3866b19dccf473ad4e5ede79d117e8e1c#l93
 buffercount_type] being defined to a wrong value.

 I have attached a new version of the patch. Please try building after
 applying it.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5183#comment:4>
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