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  1. 15 Feb, 2018 1 commit
  3. 12 Feb, 2018 1 commit
    • Ray Tiley's avatar
      avdevice/decklink_dec: extract NTSC VANC · c837cd3d
      Ray Tiley authored 
      This changes how NTSC VANC is extracted from the buffer. In NTSC the vanc data
is interleaved between luma and chroma, and not just the luma as in high
definition resolutions.

In my testing this allows a decklink card encoding valid NTSC closed
captions to pass the caption data to the x264 encoder.

Updated with reviews from Devin Heitmueller and Marton Balint.
Signed-off-by: 's avatarRay Tiley <raytiley@gmail.com>
Signed-off-by: 's avatarMarton Balint <cus@passwd.hu>
      c837cd3d
  5. 28 Jan, 2018 1 commit
  7. 20 Jan, 2018 2 commits
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  13. 30 Oct, 2017 1 commit
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  29. 01 Oct, 2017 1 commit
  31. 28 Sep, 2017 4 commits
  33. 27 Aug, 2017 1 commit
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  37. 30 Jul, 2017 1 commit
  39. 18 Jul, 2017 2 commits
  41. 08 May, 2017 1 commit
    • Aaron Levinson's avatar
      avdevice/decklink: fix MSVC build issues · 7f7ee86d
      Aaron Levinson authored 
      Purpose: Made minor changes to get the decklink avdevice code to build
using Visual C++.

Notes: Made changes to configure per Hendrik Leppkes's review of first
and second versions of patch.  Also made slight alterations per Marton
Balint's reviews.

Comments:

-- configure: Added if enabled decklink section and setting
   decklink_indev_extralibs and decklink_outdev_extralibs here for
   both mingw and Windows.  Also eliminated the setting of these
   variables in the mingw section earlier in the file.

-- libavdevice/decklink_common.cpp: Switched the order of the include
   of libavformat/internal.h to workaround build issues with Visual
   C++.  See comment in file for more details.

-- libavdevice/decklink_dec.cpp:
a) Rearranged the include of libavformat/internal.h (for reasons as
   described above).
b) Made slight alteration to an argument for call to av_rescale_q() to
   workaround a compiler error with Visual C++.  This appears to only
   be an issue when building C++ files with Visual C++.  See comment
   in code for more details.

-- libavdevice/decklink_enc.cpp: Rearranged the include of
   libavformat/internal.h (for reasons as described above).
Signed-off-by: 's avatarAaron Levinson <alevinsn@aracnet.com>
Signed-off-by: 's avatarMarton Balint <cus@passwd.hu>
      7f7ee86d
  43. 15 Apr, 2017 1 commit
    • Aaron Levinson's avatar
      avdevice/decklink: remove pthread dependency · 9e86a618
      Aaron Levinson authored 
      Purpose: avdevice/decklink: Removed pthread dependency by replacing
semaphore used in code appropriately.  Doing so makes it easier to
build ffmpeg using Visual C++ on Windows.  This is a contination of
Kyle Schwarz's "avdevice/decklink: Remove pthread dependency" patch
that is available at https://patchwork.ffmpeg.org/patch/2654/ .  This
patch wasn't accepted, and as far as I can tell, there was no
follow-up after it was rejected.

Notes: Used Visual Studio 2015 (with update 3) for this.

Comments:

-- configure: Eliminated pthreads dependency for decklink_indev_deps
   and decklink_outdev_deps and replaced with threads dependency

-- libavdevice/decklink_common.cpp / .h:
a) Eliminated semaphore and replaced with a combination of a mutex,
   condition variable, and a counter (frames_buffer_available_spots).
b) Removed include of pthread.h and semaphore.h and now using
   libavutil/thread.h instead.

-- libavdevice/decklink_dec.cpp: Eliminated include of pthread.h and
   semaphore.h.

-- libavdevice/decklink_enc.cpp:
a) Eliminated include of pthread.h and semaphore.h.
b) Replaced use of semaphore with the equivalent using a combination
   of a mutex, condition variable, and a counter
   (frames_buffer_available_spots).  In theory, libavutil/thread.h and
   the associated code could have been modified instead to add
   cross-platform implementations of the sem_ functions, but an
   inspection of the ffmpeg source base indicates that there are only
   two cases in which semaphores are used (including this one that was
   replaced), so it was deemed to not be worth the effort.
Signed-off-by: 's avatarMarton Balint <cus@passwd.hu>
      9e86a618
  45. 28 Mar, 2017 1 commit
  47. 22 Mar, 2017 1 commit
  49. 27 Dec, 2016 1 commit
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  59. 26 Jun, 2016 3 commits