lavc/videotoolboxenc: fix loadVTEncSymbols crash when symbol not found

Signed-off-by: Rick Kern <kernrj@gmail.com>

lavc/videotoolboxenc: fix loadVTEncSymbols crash when symbol not found
Signed-off-by: Rick Kern <kernrj@gmail.com>
82a8724d · jerett · Rick Kern · ea1d07ae · 82a8724d
Commit 82a8724d authored Jun 23, 2017 by jerett Committed by Rick Kern Jun 23, 2017
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videotoolboxenc.c libavcodec/videotoolboxenc.c +3 -3

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--- a/libavcodec/videotoolboxenc.c
+++ b/libavcodec/videotoolboxenc.c
@@ -73,11 +73,11 @@ static struct{

 #define GET_SYM(symbol, defaultVal)                                     \
 do{                                                                     \
-    CFStringRef cfstr = *(CFStringRef*)dlsym(RTLD_DEFAULT, #symbol);    \
-    if(!cfstr)                                                          \
+    CFStringRef* handle = (CFStringRef*)dlsym(RTLD_DEFAULT, #symbol);   \
+    if(!handle)                                                         \
        compat_keys.symbol = CFSTR(defaultVal);                         \
    else                                                                \
-        compat_keys.symbol = cfstr;                                     \
+        compat_keys.symbol = *handle;                                   \
 }while(0)

 static pthread_once_t once_ctrl = PTHREAD_ONCE_INIT;