Mac Video Capture: Add Blackmagic DeckLink SDK for Mac to third_party folder

third_party/decklink_mac/include/DeckLinkAPIDispatch.cpp

Index: third_party/decklink_mac/include/DeckLinkAPIDispatch.cpp
diff --git a/third_party/decklink_mac/include/DeckLinkAPIDispatch.cpp b/third_party/decklink_mac/include/DeckLinkAPIDispatch.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..cb646de6d3a0218770b7b79807716d19cdb8d8e6
--- /dev/null
+++ b/third_party/decklink_mac/include/DeckLinkAPIDispatch.cpp
@@ -0,0 +1,193 @@
+/* -LICENSE-START-
+** Copyright (c) 2009 Blackmagic Design
+**
+** Permission is hereby granted, free of charge, to any person or organization
+** obtaining a copy of the software and accompanying documentation covered by
+** this license (the "Software") to use, reproduce, display, distribute,
+** execute, and transmit the Software, and to prepare derivative works of the
+** Software, and to permit third-parties to whom the Software is furnished to
+** do so, all subject to the following:
+** 
+** The copyright notices in the Software and this entire statement, including
+** the above license grant, this restriction and the following disclaimer,
+** must be included in all copies of the Software, in whole or in part, and
+** all derivative works of the Software, unless such copies or derivative
+** works are solely in the form of machine-executable object code generated by
+** a source language processor.
+** 
+** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+** FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+** DEALINGS IN THE SOFTWARE.
+** -LICENSE-END-
+*/
+/* DeckLinkAPIDispatch.cpp */
+
+#include "DeckLinkAPI.h"
+#include <pthread.h>
+
+#if BLACKMAGIC_DECKLINK_API_MAGIC != 1
+	#error The DeckLink API version of DeckLinkAPIDispatch.cpp is not the same version as DeckLinkAPI.h
+#endif
+
+#define kDeckLinkAPI_BundlePath "/Library/Frameworks/DeckLinkAPI.framework"
+
+
+typedef IDeckLinkIterator* (*CreateIteratorFunc)(void);
+typedef IDeckLinkAPIInformation* (*CreateAPIInformationFunc)(void);
+typedef IDeckLinkGLScreenPreviewHelper* (*CreateOpenGLScreenPreviewHelperFunc)(void);
+typedef IDeckLinkCocoaScreenPreviewCallback* (*CreateCocoaScreenPreviewFunc)(void*);
+typedef IDeckLinkVideoConversion* (*CreateVideoConversionInstanceFunc)(void);
+typedef IDeckLinkDiscovery* (*CreateDeckLinkDiscoveryInstanceFunc)(void);
+
+static pthread_once_t						gDeckLinkOnceControl		= PTHREAD_ONCE_INIT;
+static CFBundleRef							gDeckLinkAPIBundleRef		= NULL;
+static CreateIteratorFunc					gCreateIteratorFunc			= NULL;
+static CreateAPIInformationFunc				gCreateAPIInformationFunc	= NULL;
+static CreateOpenGLScreenPreviewHelperFunc	gCreateOpenGLPreviewFunc	= NULL;
+static CreateCocoaScreenPreviewFunc			gCreateCocoaPreviewFunc		= NULL;
+static CreateVideoConversionInstanceFunc	gCreateVideoConversionFunc	= NULL;
+static CreateDeckLinkDiscoveryInstanceFunc  gCreateDeckLinkDiscoveryFunc= NULL;
+
+
+void	InitDeckLinkAPI (void)
+{
+	CFURLRef		bundleURL;
+
+	bundleURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, CFSTR(kDeckLinkAPI_BundlePath), kCFURLPOSIXPathStyle, true);
+	if (bundleURL != NULL)
+	{
+		gDeckLinkAPIBundleRef = CFBundleCreate(kCFAllocatorDefault, bundleURL);
+		if (gDeckLinkAPIBundleRef != NULL)
+		{
+			gCreateIteratorFunc = (CreateIteratorFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateDeckLinkIteratorInstance_0002"));
+			gCreateAPIInformationFunc = (CreateAPIInformationFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateDeckLinkAPIInformationInstance_0001"));
+			gCreateOpenGLPreviewFunc = (CreateOpenGLScreenPreviewHelperFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateOpenGLScreenPreviewHelper_0001"));
+			gCreateCocoaPreviewFunc = (CreateCocoaScreenPreviewFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateCocoaScreenPreview_0001"));
+			gCreateVideoConversionFunc = (CreateVideoConversionInstanceFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateVideoConversionInstance_0001"));
+            gCreateDeckLinkDiscoveryFunc = (CreateDeckLinkDiscoveryInstanceFunc)CFBundleGetFunctionPointerForName(gDeckLinkAPIBundleRef, CFSTR("CreateDeckLinkDiscoveryInstance_0001"));
+		}
+		CFRelease(bundleURL);
+	}
+}
+
+bool		IsDeckLinkAPIPresent (void)
+{
+	// If the DeckLink API bundle was successfully loaded, return this knowledge to the caller
+	if (gDeckLinkAPIBundleRef != NULL)
+		return true;
+	
+	return false;
+}
+
+IDeckLinkIterator*		CreateDeckLinkIteratorInstance (void)
+{
+	pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
+	
+	if (gCreateIteratorFunc == NULL)
+		return NULL;
+	
+	return gCreateIteratorFunc();
+}
+
+IDeckLinkAPIInformation*	CreateDeckLinkAPIInformationInstance (void)
+{
+	pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
+	
+	if (gCreateAPIInformationFunc == NULL)
+		return NULL;
+	
+	return gCreateAPIInformationFunc();
+}
+
+IDeckLinkGLScreenPreviewHelper*		CreateOpenGLScreenPreviewHelper (void)
+{
+	pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
+	
+	if (gCreateOpenGLPreviewFunc == NULL)
+		return NULL;
+	
+	return gCreateOpenGLPreviewFunc();
+}
+
+IDeckLinkCocoaScreenPreviewCallback*	CreateCocoaScreenPreview (void* parentView)
+{
+	pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
+	
+	if (gCreateCocoaPreviewFunc == NULL)
+		return NULL;
+	
+	return gCreateCocoaPreviewFunc(parentView);
+}
+
+IDeckLinkVideoConversion* CreateVideoConversionInstance (void)
+{
+	pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
+	
+	if (gCreateVideoConversionFunc == NULL)
+		return NULL;
+	
+	return gCreateVideoConversionFunc();
+}
+
+IDeckLinkDiscovery* CreateDeckLinkDiscoveryInstance (void)
+{
+	pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
+	
+	if (gCreateDeckLinkDiscoveryFunc == NULL)
+		return NULL;
+	
+	return gCreateDeckLinkDiscoveryFunc();
+}
+
+
+#define kBMDStreamingAPI_BundlePath "/Library/Application Support/Blackmagic Design/Streaming/BMDStreamingAPI.bundle"
+
+typedef IBMDStreamingDiscovery* (*CreateDiscoveryFunc)(void);
+typedef IBMDStreamingH264NALParser* (*CreateNALParserFunc)(void);
+
+static pthread_once_t      gBMDStreamingOnceControl  = PTHREAD_ONCE_INIT;
+static CFBundleRef         gBMDStreamingAPIBundleRef = NULL;
+static CreateDiscoveryFunc gCreateDiscoveryFunc      = NULL;
+static CreateNALParserFunc gCreateNALParserFunc      = NULL;
+
+void InitBMDStreamingAPI(void)
+{
+	CFURLRef bundleURL;
+
+	bundleURL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, CFSTR(kBMDStreamingAPI_BundlePath), kCFURLPOSIXPathStyle, true);
+	if (bundleURL != NULL)
+	{
+		gBMDStreamingAPIBundleRef = CFBundleCreate(kCFAllocatorDefault, bundleURL);
+		if (gBMDStreamingAPIBundleRef != NULL)
+		{
+			gCreateDiscoveryFunc = (CreateDiscoveryFunc)CFBundleGetFunctionPointerForName(gBMDStreamingAPIBundleRef, CFSTR("CreateBMDStreamingDiscoveryInstance_0001"));
+			gCreateNALParserFunc = (CreateNALParserFunc)CFBundleGetFunctionPointerForName(gBMDStreamingAPIBundleRef, CFSTR("CreateBMDStreamingH264NALParser_0001"));
+		}
+
+		CFRelease(bundleURL);
+	}
+}
+
+IBMDStreamingDiscovery* CreateBMDStreamingDiscoveryInstance()
+{
+	pthread_once(&gBMDStreamingOnceControl, InitBMDStreamingAPI);
+
+	if (gCreateDiscoveryFunc == NULL)
+		return NULL;
+
+	return gCreateDiscoveryFunc();
+}
+
+IBMDStreamingH264NALParser* CreateBMDStreamingH264NALParser()
+{
+	pthread_once(&gBMDStreamingOnceControl, InitBMDStreamingAPI);
+
+	if (gCreateNALParserFunc == NULL)
+		return NULL;
+
+	return gCreateNALParserFunc();
+}