133 lines
4.6 KiB
C++
133 lines
4.6 KiB
C++
/* -LICENSE-START-
|
|
** Copyright (c) 2011 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-
|
|
**/
|
|
|
|
#include <stdio.h>
|
|
#include <pthread.h>
|
|
#include <dlfcn.h>
|
|
|
|
#include "DeckLinkAPI_v8_0.h"
|
|
|
|
#define kDeckLinkAPI_Name "libDeckLinkAPI.so"
|
|
#define KDeckLinkPreviewAPI_Name "libDeckLinkPreviewAPI.so"
|
|
|
|
typedef IDeckLinkIterator_v8_0* (*CreateIteratorFunc)(void);
|
|
typedef IDeckLinkAPIInformation* (*CreateAPIInformationFunc)(void);
|
|
typedef IDeckLinkGLScreenPreviewHelper* (*CreateOpenGLScreenPreviewHelperFunc)(void);
|
|
typedef IDeckLinkVideoConversion* (*CreateVideoConversionInstanceFunc)(void);
|
|
|
|
static pthread_once_t gDeckLinkOnceControl = PTHREAD_ONCE_INIT;
|
|
static pthread_once_t gPreviewOnceControl = PTHREAD_ONCE_INIT;
|
|
|
|
static bool gLoadedDeckLinkAPI = false;
|
|
|
|
static CreateIteratorFunc gCreateIteratorFunc = NULL;
|
|
static CreateAPIInformationFunc gCreateAPIInformationFunc = NULL;
|
|
static CreateOpenGLScreenPreviewHelperFunc gCreateOpenGLPreviewFunc = NULL;
|
|
static CreateVideoConversionInstanceFunc gCreateVideoConversionFunc = NULL;
|
|
|
|
void InitDeckLinkAPI (void)
|
|
{
|
|
void *libraryHandle;
|
|
|
|
libraryHandle = dlopen(kDeckLinkAPI_Name, RTLD_NOW|RTLD_GLOBAL);
|
|
if (!libraryHandle)
|
|
{
|
|
fprintf(stderr, "%s\n", dlerror());
|
|
return;
|
|
}
|
|
|
|
gLoadedDeckLinkAPI = true;
|
|
|
|
gCreateIteratorFunc = (CreateIteratorFunc)dlsym(libraryHandle, "CreateDeckLinkIteratorInstance_0001");
|
|
if (!gCreateIteratorFunc)
|
|
fprintf(stderr, "%s\n", dlerror());
|
|
gCreateAPIInformationFunc = (CreateAPIInformationFunc)dlsym(libraryHandle, "CreateDeckLinkAPIInformationInstance_0001");
|
|
if (!gCreateAPIInformationFunc)
|
|
fprintf(stderr, "%s\n", dlerror());
|
|
gCreateVideoConversionFunc = (CreateVideoConversionInstanceFunc)dlsym(libraryHandle, "CreateVideoConversionInstance_0001");
|
|
if (!gCreateVideoConversionFunc)
|
|
fprintf(stderr, "%s\n", dlerror());
|
|
}
|
|
|
|
void InitDeckLinkPreviewAPI (void)
|
|
{
|
|
void *libraryHandle;
|
|
|
|
libraryHandle = dlopen(KDeckLinkPreviewAPI_Name, RTLD_NOW|RTLD_GLOBAL);
|
|
if (!libraryHandle)
|
|
{
|
|
fprintf(stderr, "%s\n", dlerror());
|
|
return;
|
|
}
|
|
gCreateOpenGLPreviewFunc = (CreateOpenGLScreenPreviewHelperFunc)dlsym(libraryHandle, "CreateOpenGLScreenPreviewHelper_0001");
|
|
if (!gCreateOpenGLPreviewFunc)
|
|
fprintf(stderr, "%s\n", dlerror());
|
|
}
|
|
|
|
bool IsDeckLinkAPIPresent (void)
|
|
{
|
|
// If the DeckLink API dynamic library was successfully loaded, return this knowledge to the caller
|
|
return gLoadedDeckLinkAPI;
|
|
}
|
|
|
|
IDeckLinkIterator_v8_0* 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);
|
|
pthread_once(&gPreviewOnceControl, InitDeckLinkPreviewAPI);
|
|
|
|
if (gCreateOpenGLPreviewFunc == NULL)
|
|
return NULL;
|
|
return gCreateOpenGLPreviewFunc();
|
|
}
|
|
|
|
IDeckLinkVideoConversion* CreateVideoConversionInstance (void)
|
|
{
|
|
pthread_once(&gDeckLinkOnceControl, InitDeckLinkAPI);
|
|
|
|
if (gCreateVideoConversionFunc == NULL)
|
|
return NULL;
|
|
return gCreateVideoConversionFunc();
|
|
}
|
|
|