2017-01-03 7:26 GMT+01:00 Wang Bin <wbse...@gmail.com>:
> If ffmpeg is build with iOS 10 sdk, program will crash on iOS
> 9. This patch fixes the crash.

Does anybody know why clock_gettime() behaves differently than
kVTCompressionPropertyKey_H264EntropyMode in
libavcodec/videotoolboxenc.c?
Iiuc, the call to clock_gettime() crashes at runtime after a null
pointer dereference, trying to start ffmpeg on systems without
above symbol causes the following (I couldn't test myself):

dyld: Symbol not found: _kVTCompressionPropertyKey_H264EntropyMode

Carl Eugen
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