When compiled by clang, libavcodec/videotoolboxenc.c produces three warnings:
libavcodec/videotoolboxenc.c:962:13: warning: assigning to 'void *' from
'CFNumberRef' (aka 'const struct __CFNumber *') discards qualifiers
[-Wincompatible-pointer-types-discards-qualifiers]
nums[0] = bytes_per_second;
^ ~~~~~~~~~~~~~~~~
libavcodec/videotoolboxenc.c:963:13: warning: assigning to 'void *' from
'CFNumberRef' (aka 'const struct __CFNumber *') discards qualifiers
[-Wincompatible-pointer-types-discards-qualifiers]
nums[1] = one_second;
^ ~~~~~~~~~~
libavcodec/videotoolboxenc.c:965:38: warning: passing 'void *[2]' to parameter
of type 'const void **' discards qualifiers in nested pointer types
[-Wincompatible-pointer-types-discards-qualifiers]
nums,
^~~~
/System/Library/Frameworks/CoreFoundation.framework/Headers/CFArray.h:174:65:
note: passing argument to parameter 'values' here
CFArrayRef CFArrayCreate(CFAllocatorRef allocator, const void **values, CFIndex
numValues, const CFArrayCallBacks *callBacks);
^
3 warnings generated.
Changing type of nums[2] from void * to CFNumberRef silences the first two
warnings.
Adding a pointer (numsptr) to nums[2], and using that in CFArrayCreate silences
the third warning.
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