[FFmpeg-trac] #6081(avcodec:closed): kVTCompressionPropertyKey_H264EntropyMode not available on osx 10.8

FFmpeg trac at avcodec.org
Wed Mar 1 13:43:53 EET 2017


#6081: kVTCompressionPropertyKey_H264EntropyMode not available on osx 10.8
------------------------------------+-----------------------------------
             Reporter:  cehoyos     |                    Owner:  kernrj
                 Type:  defect      |                   Status:  closed
             Priority:  minor       |                Component:  avcodec
              Version:  git-master  |               Resolution:  fixed
             Keywords:  osx         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by kagami):

 Hi.

 I'm still getting error `Symbol not found:
 _kCVImageBufferColorPrimaries_ITU_R_2020` when trying to run latest ffmpeg
 on Maverics built on Sierra. libavcodec.dylib still includes references to
 such symbols:

 {{{
 $ nm -g libavcodec.57.dylib | grep R_2020
                  U _kCVImageBufferColorPrimaries_ITU_R_2020
                  U _kCVImageBufferTransferFunction_ITU_R_2020
                  U _kCVImageBufferYCbCrMatrix_ITU_R_2020
 }}}

 Do you know what might be the reason of that? These symbols are
 [[https://developer.apple.com/reference/corevideo/kcvimagebuffercolorprimaries_itu_r_2020|not
 available in 10.9]] and linker obviously fails.

 Problem goes away when I use `--disable-videotoolbox` configure option.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6081#comment:3>
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