applemedia: vtenc: fix build break on iOS

Fix 'conflicting types' error
https://bugzilla.gnome.org/show_bug.cgi?id=765292

diff --git a/sys/applemedia/vtenc.c b/sys/applemedia/vtenc.c
index 39e5810..5c0c6ca 100644 (file)
--- a/sys/applemedia/vtenc.c
+++ b/sys/applemedia/vtenc.c
@@ -58,7 +58,7 @@ const CFStringRef kVTCompressionPropertyKey_Quality = CFSTR ("Quality");
 #endif
 
 #ifdef HAVE_VIDEOTOOLBOX_10_9_6
-extern int
+extern OSStatus
 VTCompressionSessionPrepareToEncodeFrames (VTCompressionSessionRef session)
     __attribute__ ((weak_import));
 #endif