IDeckLinkDisplayMode *BMDOutputDelegate::GetDisplayModeByIndex(int selectedIndex)
{
// Populate the display mode combo with a list of display modes supported by the installed DeckLink card
IDeckLinkDisplayModeIterator* displayModeIterator;
IDeckLinkDisplayMode* deckLinkDisplayMode;
IDeckLinkDisplayMode* selectedMode = NULL;
int index = 0;
if (m_deckLinkOutput->GetDisplayModeIterator(&displayModeIterator) != S_OK)
goto bail;
while (displayModeIterator->Next(&deckLinkDisplayMode) == S_OK)
{
const char *modeName;
if (deckLinkDisplayMode->GetName(&modeName) == S_OK)
{
if (index == selectedIndex)
{
printf("Selected mode: %s\n", modeName);
selectedMode = deckLinkDisplayMode;
goto bail;
}
}
index++;
}
bail:
displayModeIterator->Release();
return selectedMode;
}
BMDDisplayMode getDisplayMode( mlt_profile profile, int vancLines )
{
IDeckLinkDisplayModeIterator* iter = NULL;
IDeckLinkDisplayMode* mode = NULL;
BMDDisplayMode result = (BMDDisplayMode) bmdDisplayModeNotSupported;
if ( m_decklinkInput->GetDisplayModeIterator( &iter ) == S_OK )
{
while ( !result && iter->Next( &mode ) == S_OK )
{
int width = mode->GetWidth();
int height = mode->GetHeight();
BMDTimeValue duration;
BMDTimeScale timescale;
mode->GetFrameRate( &duration, ×cale );
double fps = (double) timescale / duration;
int p = mode->GetFieldDominance() == bmdProgressiveFrame;
m_topFieldFirst = mode->GetFieldDominance() == bmdUpperFieldFirst;
m_colorspace = ( mode->GetFlags() & bmdDisplayModeColorspaceRec709 ) ? 709 : 601;
mlt_log_verbose( getProducer(), "BMD mode %dx%d %.3f fps prog %d tff %d\n", width, height, fps, p, m_topFieldFirst );
if ( width == profile->width && p == profile->progressive
&& ( height + vancLines == profile->height || ( height == 486 && profile->height == 480 + vancLines ) )
&& fps == mlt_profile_fps( profile ) )
result = mode->GetDisplayMode();
SAFE_RELEASE( mode );
}
SAFE_RELEASE( iter );
}
return result;
}
IDeckLinkDisplayMode* getDisplayMode()
{
mlt_profile profile = mlt_service_profile( MLT_CONSUMER_SERVICE( getConsumer() ) );
IDeckLinkDisplayModeIterator* iter = NULL;
IDeckLinkDisplayMode* mode = NULL;
IDeckLinkDisplayMode* result = 0;
if ( m_deckLinkOutput->GetDisplayModeIterator( &iter ) == S_OK )
{
while ( !result && iter->Next( &mode ) == S_OK )
{
m_width = mode->GetWidth();
m_height = mode->GetHeight();
mode->GetFrameRate( &m_duration, &m_timescale );
m_fps = (double) m_timescale / m_duration;
int p = mode->GetFieldDominance() == bmdProgressiveFrame;
mlt_log_verbose( getConsumer(), "BMD mode %dx%d %.3f fps prog %d\n", m_width, m_height, m_fps, p );
if ( m_width == profile->width && p == profile->progressive
&& (int) m_fps == (int) mlt_profile_fps( profile )
&& ( m_height == profile->height || ( m_height == 486 && profile->height == 480 ) ) )
result = mode;
else
SAFE_RELEASE( mode );
}
SAFE_RELEASE( iter );
}
return result;
}
void open_input(unsigned int norm) {
IDeckLinkDisplayModeIterator *it;
assert(deckLink != NULL);
assert(norm < sizeof(norms) / sizeof(struct decklink_norm));
if (deckLink->QueryInterface(IID_IDeckLinkInput,
(void **) &deckLinkInput) != S_OK) {
throw std::runtime_error(
"DeckLink input: failed to get IDeckLinkInput"
);
}
if (deckLinkInput->GetDisplayModeIterator(&it) != S_OK) {
throw std::runtime_error(
"DeckLink input: failed to get display mode iterator"
);
}
dominance = find_dominance(norms[norm].mode, it);
it->Release( );
if (deckLinkInput->EnableVideoInput(norms[norm].mode,
bpf, 0) != S_OK) {
throw std::runtime_error(
"DeckLink input: failed to enable video input"
);
}
fprintf(stderr, "DeckLink: opening input using norm %s\n",
norms[norm].name);
}
bool PlaybackHelper::setupDeckLinkOutput()
{
bool result = false;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLinkDisplayMode* deckLinkDisplayMode = NULL;
m_width = -1;
// set callback
m_deckLinkOutput->SetScheduledFrameCompletionCallback(this);
// get frame scale and duration for the video mode
if (m_deckLinkOutput->GetDisplayModeIterator(&displayModeIterator) != S_OK)
goto bail;
while (displayModeIterator->Next(&deckLinkDisplayMode) == S_OK)
{
if (deckLinkDisplayMode->GetDisplayMode() == bmdModeNTSC)
{
m_width = deckLinkDisplayMode->GetWidth();
m_height = deckLinkDisplayMode->GetHeight();
deckLinkDisplayMode->GetFrameRate(&m_frameDuration, &m_timeScale);
deckLinkDisplayMode->Release();
break;
}
deckLinkDisplayMode->Release();
}
displayModeIterator->Release();
if (m_width == -1)
{
fprintf(stderr, "Unable to find requested video mode\n");
goto bail;
}
// enable video output
if (m_deckLinkOutput->EnableVideoOutput(bmdModeNTSC, bmdVideoOutputFlagDefault) != S_OK)
{
fprintf(stderr, "Could not enable video output\n");
goto bail;
}
// create coloured frames
if (! createFrames())
goto bail;
result = true;
bail:
if (! result)
{
// release coloured frames
releaseFrames();
}
return result;
}
IDeckLinkDisplayMode *Player::GetDisplayModeByIndex(int selectedIndex)
{
// Populate the display mode combo with a list of display modes supported by the installed DeckLink card
IDeckLinkDisplayModeIterator *displayModeIterator;
IDeckLinkDisplayMode *deckLinkDisplayMode;
IDeckLinkDisplayMode *selectedMode = NULL;
int index = 0;
if (m_deckLinkOutput->GetDisplayModeIterator(&displayModeIterator) != S_OK)
goto bail;
while (displayModeIterator->Next(&deckLinkDisplayMode) == S_OK) {
BMDProbeString str;
if (deckLinkDisplayMode->GetName(&str) == S_OK) {
if (index == selectedIndex) {
printf("Selected mode: %s\n\n\n", ToStr(str));
selectedMode = deckLinkDisplayMode;
FreeStr(str);
goto bail;
}
}
index++;
}
bail:
displayModeIterator->Release();
return selectedMode;
}
void CSignalGeneratorDlg::RefreshDisplayModeMenu(void)
{
// Populate the display mode combo with a list of display modes supported by the installed DeckLink card
IDeckLinkDisplayModeIterator* displayModeIterator;
IDeckLinkDisplayMode* deckLinkDisplayMode;
BMDPixelFormat pixelFormat;
pixelFormat = (BMDPixelFormat)m_pixelFormatCombo.GetItemData(m_pixelFormatCombo.GetCurSel());
for (int i = 1; i < m_videoFormatCombo.GetCount(); i++)
{
deckLinkDisplayMode = (IDeckLinkDisplayMode*)m_videoFormatCombo.GetItemDataPtr(i-1);
deckLinkDisplayMode->Release();
}
m_videoFormatCombo.ResetContent();
if (m_deckLinkOutput->GetDisplayModeIterator(&displayModeIterator) != S_OK)
return;
while (displayModeIterator->Next(&deckLinkDisplayMode) == S_OK)
{
BSTR modeName;
int newIndex;
HRESULT hr;
BMDDisplayModeSupport displayModeSupport;
BMDVideoOutputFlags videoOutputFlags = bmdVideoOutputDualStream3D;
if (deckLinkDisplayMode->GetName(&modeName) != S_OK)
{
deckLinkDisplayMode->Release();
continue;
}
CString modeNameCString(modeName);
newIndex = m_videoFormatCombo.AddString(modeNameCString);
m_videoFormatCombo.SetItemDataPtr(newIndex, deckLinkDisplayMode);
hr = m_deckLinkOutput->DoesSupportVideoMode(deckLinkDisplayMode->GetDisplayMode(), pixelFormat, videoOutputFlags, &displayModeSupport, NULL);
if (hr != S_OK || ! displayModeSupport)
{
SysFreeString(modeName);
continue;
}
CString modeName3DCString(modeName);
modeName3DCString += _T(" 3D");
newIndex = m_videoFormatCombo.AddString(modeName3DCString);
m_videoFormatCombo.SetItemDataPtr(newIndex, deckLinkDisplayMode);
deckLinkDisplayMode->AddRef();
SysFreeString(modeName);
}
displayModeIterator->Release();
m_videoFormatCombo.SetCurSel(0);
}
bool DeckLinkController::selectDevice(int index) {
IDeckLinkAttributes* deckLinkAttributes = NULL;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLinkDisplayMode* displayMode = NULL;
bool result = false;
// Check index
if (index >= deviceList.size()) {
ofLogError("DeckLinkController") << "This application was unable to select the device.";
goto bail;
}
// A new device has been selected.
// Release the previous selected device and mode list
if (deckLinkInput != NULL)
deckLinkInput->Release();
while(modeList.size() > 0) {
modeList.back()->Release();
modeList.pop_back();
}
// Get the IDeckLinkInput for the selected device
if ((deviceList[index]->QueryInterface(IID_IDeckLinkInput, (void**)&deckLinkInput) != S_OK)) {
ofLogError("DeckLinkController") << "This application was unable to obtain IDeckLinkInput for the selected device.";
deckLinkInput = NULL;
goto bail;
}
//
// Retrieve and cache mode list
if (deckLinkInput->GetDisplayModeIterator(&displayModeIterator) == S_OK) {
while (displayModeIterator->Next(&displayMode) == S_OK)
modeList.push_back(displayMode);
displayModeIterator->Release();
}
//
// Check if input mode detection format is supported.
supportFormatDetection = false; // assume unsupported until told otherwise
if (deviceList[index]->QueryInterface(IID_IDeckLinkAttributes, (void**) &deckLinkAttributes) == S_OK) {
if (deckLinkAttributes->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &supportFormatDetection) != S_OK)
supportFormatDetection = false;
deckLinkAttributes->Release();
}
result = true;
bail:
return result;
}
bool Output::startDeckLink(BMDDisplayMode mode)
{
IDeckLinkDisplayModeIterator* pDLDisplayModeIterator = NULL;
IDeckLinkDisplayMode* pDLDisplayMode = NULL;
if (pDLOutput->GetDisplayModeIterator(&pDLDisplayModeIterator) == S_OK)
{
while (pDLDisplayModeIterator->Next(&pDLDisplayMode) == S_OK)
{
if (pDLDisplayMode->GetDisplayMode() == mode)
{
break;
}
}
pDLDisplayModeIterator->Release();
}
if (!pDLDisplayMode)
{
ofLogError("ofxDeckLinkAPI::Output") << "invalid display mode";
return false;
}
uiFrameWidth = pDLDisplayMode->GetWidth();
uiFrameHeight = pDLDisplayMode->GetHeight();
pixels[0].allocate(uiFrameWidth, uiFrameHeight, 4);
pixels[1].allocate(uiFrameWidth, uiFrameHeight, 4);
front_buffer = &pixels[0];
back_buffer = &pixels[1];
pDLDisplayMode->GetFrameRate(&frameDuration, &frameTimescale);
uiFPS = ((frameTimescale + (frameDuration - 1)) / frameDuration);
if (pDLOutput->EnableVideoOutput(pDLDisplayMode->GetDisplayMode(), bmdVideoOutputFlagDefault) != S_OK)
return false;
if (pDLOutput->CreateVideoFrame(uiFrameWidth, uiFrameHeight, uiFrameWidth * 4, bmdFormat8BitARGB, bmdFrameFlagDefault, &pDLVideoFrame) != S_OK)
return false;
uiTotalFrames = 0;
resetFrame();
setPreroll();
pDLOutput->StartScheduledPlayback(0, frameTimescale, 1);
return true;
}
// select output device
bool DeckLinkController::selectOutputDevice(int index) {
IDeckLinkAttributes* deckLinkAttributes = NULL;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLinkDisplayMode* displayMode = NULL;
bool result = false;
// Check index
if (index >= deviceList.size()) {
ofLogError("DeckLinkController") << "This application was unable to select the device.";
goto bail;
}
// A new device has been selected.
// Release the previous selected device and mode list
if (deckLinkInput != NULL)
deckLinkInput->Release();
while(modeList.size() > 0) {
modeList.back()->Release();
modeList.pop_back();
}
// Get the IDeckLinkOutput for the selected device
if ((deviceList[index]->QueryInterface(IID_IDeckLinkOutput, (void**)&deckLinkOutput) != S_OK)) {
ofLogError("DeckLinkController") << "This application was unable to obtain IDeckLinkOutput for the selected device.";
deckLinkOutput = NULL;
goto bail;
}
if ((deckLinkOutput->CreateVideoFrame(1280, 720, 1280*4,bmdFormat8BitBGRA, bmdFrameFlagDefault, &videoFrame) != S_OK)) {
ofLogError("DeckLinkController") << "Create video frame error";
goto bail;
}
// Retrieve and cache mode list
if (deckLinkOutput->GetDisplayModeIterator(&displayModeIterator) == S_OK) {
while (displayModeIterator->Next(&displayMode) == S_OK) {
modeList.push_back(displayMode);
}
displayModeIterator->Release();
}
result = true;
bail:
return result;
}
int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction)
{
struct decklink_cctx *cctx = (struct decklink_cctx *)avctx->priv_data;
struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
IDeckLinkDisplayModeIterator *itermode;
IDeckLinkDisplayMode *mode;
uint32_t format_code;
HRESULT res;
if (direction == DIRECTION_IN) {
int ret;
ret = decklink_select_input(avctx, bmdDeckLinkConfigAudioInputConnection);
if (ret < 0)
return ret;
ret = decklink_select_input(avctx, bmdDeckLinkConfigVideoInputConnection);
if (ret < 0)
return ret;
res = ctx->dli->GetDisplayModeIterator (&itermode);
} else {
res = ctx->dlo->GetDisplayModeIterator (&itermode);
}
if (res!= S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
return AVERROR(EIO);
}
av_log(avctx, AV_LOG_INFO, "Supported formats for '%s':\n\tformat_code\tdescription",
avctx->filename);
while (itermode->Next(&mode) == S_OK) {
BMDTimeValue tb_num, tb_den;
mode->GetFrameRate(&tb_num, &tb_den);
format_code = av_bswap32(mode->GetDisplayMode());
av_log(avctx, AV_LOG_INFO, "\n\t%.4s\t\t%ldx%ld at %d/%d fps",
(char*) &format_code, mode->GetWidth(), mode->GetHeight(),
(int) tb_den, (int) tb_num);
switch (mode->GetFieldDominance()) {
case bmdLowerFieldFirst:
av_log(avctx, AV_LOG_INFO, " (interlaced, lower field first)"); break;
case bmdUpperFieldFirst:
av_log(avctx, AV_LOG_INFO, " (interlaced, upper field first)"); break;
}
mode->Release();
}
av_log(avctx, AV_LOG_INFO, "\n");
itermode->Release();
return 0;
}
//----------
Specification DeckLink::open(shared_ptr<Base::InitialisationSettings> initialisationSettings) {
auto settings = this->getTypedSettings<InitialisationSettings>(initialisationSettings);
auto devices = ofxBlackmagic::Iterator::getDeviceList();
if (devices.empty()) {
throw(ofxMachineVision::Exception("No DeckLink devices available"));
}
if (devices.size() <= (unsigned int)settings->deviceID) {
string str = "deviceID [" + ofToString(settings->deviceID) + "] out of range. [" + ofToString(devices.size()) + "] devices available";
throw(ofxMachineVision::Exception(str));
}
this->device = devices[settings->deviceID];
int width, height;
this->displayMode = static_cast<_BMDDisplayMode>(settings->displayMode.get());
try {
CHECK_ERRORS(device.device->QueryInterface(IID_IDeckLinkInput, (void**)&this->input), "Failed to query interface");
CHECK_ERRORS(this->input->SetCallback(this), "Failed to set input callback");
//find the current display mode
IDeckLinkDisplayModeIterator * displayModeIterator = 0;
CHECK_ERRORS(input->GetDisplayModeIterator(&displayModeIterator), "Couldn't get DisplayModeIterator");
IDeckLinkDisplayMode * displayModeTest = nullptr;
IDeckLinkDisplayMode * displayModeFound = nullptr;
while (displayModeIterator->Next(&displayModeTest) == S_OK) {
if (displayModeTest->GetDisplayMode() == this->displayMode) {
displayModeFound = displayModeTest;
}
}
if (!displayModeFound) {
CHECK_ERRORS(S_FALSE, "Cannot find displayMode");
}
width = displayModeFound->GetWidth();
height = displayModeFound->GetHeight();
}
catch (std::exception e) {
throw(ofxMachineVision::Exception(e.what()));
}
this->openTime = ofGetElapsedTimeMicros();
this->frameIndex = 0;
Specification specification(width, height, "BlackMagic", device.modelName);
specification.addFeature(ofxMachineVision::Feature::Feature_DeviceID);
specification.addFeature(ofxMachineVision::Feature::Feature_FreeRun);
return specification;
}
int ff_decklink_list_formats(AVFormatContext *avctx, decklink_direction_t direction)
{
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
IDeckLinkDisplayModeIterator *itermode;
IDeckLinkDisplayMode *mode;
int i=0;
HRESULT res;
if (direction == DIRECTION_IN) {
res = ctx->dli->GetDisplayModeIterator (&itermode);
} else {
res = ctx->dlo->GetDisplayModeIterator (&itermode);
}
if (res!= S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
return AVERROR(EIO);
}
av_log(avctx, AV_LOG_INFO, "Supported formats for '%s':\n",
avctx->filename);
while (itermode->Next(&mode) == S_OK) {
BMDTimeValue tb_num, tb_den;
mode->GetFrameRate(&tb_num, &tb_den);
av_log(avctx, AV_LOG_INFO, "\t%d\t%ldx%ld at %d/%d fps",
++i,mode->GetWidth(), mode->GetHeight(),
(int) tb_den, (int) tb_num);
switch (mode->GetFieldDominance()) {
case bmdLowerFieldFirst:
av_log(avctx, AV_LOG_INFO, " (interlaced, lower field first)"); break;
case bmdUpperFieldFirst:
av_log(avctx, AV_LOG_INFO, " (interlaced, upper field first)"); break;
}
av_log(avctx, AV_LOG_INFO, "\n");
mode->Release();
}
itermode->Release();
return 0;
}
void open_card( ) {
IDeckLinkDisplayModeIterator *it;
/* get the DeckLinkOutput interface */
if (deckLink->QueryInterface(IID_IDeckLinkOutput,
(void **)&deckLinkOutput) != S_OK) {
throw std::runtime_error(
"Failed to get DeckLink output interface handle"
);
}
if (deckLinkOutput->SetScheduledFrameCompletionCallback(this)
!= S_OK) {
throw std::runtime_error(
"Failed to set DeckLink frame completion callback"
);
}
/* attempt to determine field dominance */
if (deckLinkOutput->GetDisplayModeIterator(&it) != S_OK) {
throw std::runtime_error(
"DeckLink output: failed to get display mode iterator"
);
}
dominance = find_dominance(norms[norm].mode, it);
it->Release( );
/* and we're off to the races */
if (deckLinkOutput->EnableVideoOutput(norms[norm].mode,
bmdVideoOutputFlagDefault) != S_OK) {
throw std::runtime_error(
"Failed to enable DeckLink video output"
);
}
}
IDeckLinkDisplayMode* BMDConfig::GetDeckLinkDisplayMode(IDeckLink* deckLink, int idx)
{
HRESULT result;
IDeckLinkDisplayMode* displayMode = NULL;
IDeckLinkInput* deckLinkInput = NULL;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
int i = idx;
result = deckLink->QueryInterface(IID_IDeckLinkInput, (void**)&deckLinkInput);
if (result != S_OK)
goto bail;
result = deckLinkInput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK)
goto bail;
while ((result = displayModeIterator->Next(&displayMode)) == S_OK)
{
if (i == 0)
break;
--i;
displayMode->Release();
}
if (result != S_OK)
goto bail;
bail:
if (displayModeIterator)
displayModeIterator->Release();
if (deckLinkInput)
deckLinkInput->Release();
return displayMode;
}
bool BMDOpenGLOutput::Start()
{
IDeckLinkDisplayModeIterator* pDLDisplayModeIterator;
IDeckLinkDisplayMode* pDLDisplayMode = NULL;
// Get first avaliable video mode for Output
if (pDLOutput->GetDisplayModeIterator(&pDLDisplayModeIterator) == S_OK)
{
if (pDLDisplayModeIterator->Next(&pDLDisplayMode) != S_OK)
{
QMessageBox::critical(NULL,"DeckLink error.", "Cannot find video mode.");
pDLDisplayModeIterator->Release();
return false;
}
pDLDisplayModeIterator->Release();
}
uiFrameWidth = pDLDisplayMode->GetWidth();
uiFrameHeight = pDLDisplayMode->GetHeight();
pDLDisplayMode->GetFrameRate(&frameDuration, &frameTimescale);
uiFPS = ((frameTimescale + (frameDuration-1)) / frameDuration);
if (pDLOutput->EnableVideoOutput(pDLDisplayMode->GetDisplayMode(), bmdVideoOutputFlagDefault) != S_OK)
return false;
// Flip frame vertical, because OpenGL rendering starts from left bottom corner
if (pDLOutput->CreateVideoFrame(uiFrameWidth, uiFrameHeight, uiFrameWidth*4, bmdFormat8BitBGRA, bmdFrameFlagFlipVertical, &pDLVideoFrame) != S_OK)
return false;
uiTotalFrames = 0;
ResetFrame();
SetPreroll();
pContext->makeCurrent();
pGLScene->InitScene();
glGenFramebuffersEXT(1, &idFrameBuf);
glGenRenderbuffersEXT(1, &idColorBuf);
glGenRenderbuffersEXT(1, &idDepthBuf);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, idFrameBuf);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, idColorBuf);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGBA8, uiFrameWidth, uiFrameHeight);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, idDepthBuf);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT, uiFrameWidth, uiFrameHeight);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, idColorBuf);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_RENDERBUFFER_EXT, idDepthBuf);
glStatus = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
if (glStatus != GL_FRAMEBUFFER_COMPLETE_EXT)
{
QMessageBox::critical(NULL,"OpenGL initialization error.", "Cannot initialize framebuffer.");
return false;
}
pFrameBuf = (char*)malloc(pDLVideoFrame->GetRowBytes() * uiFrameHeight);
UpdateScene();
pDLOutput->StartScheduledPlayback(0, 100, 1.0);
return true;
}
int _tmain(int argc, _TCHAR* argv[])
{
int numDevices = 0;
HRESULT result;
IDeckLinkAttributes *deckLinkAttributes = NULL;
HRESULT attributeResult;
BOOL keyingSupported;
BOOL HDkeyingSupported;
int selectedMode = 0;
printf("GDI Keyer Sample Application\n\n");
// Initialize COM on this thread
result = CoInitialize(NULL);
if (FAILED(result))
{
fprintf(stderr, "Initialization of COM failed - result = %08x.\n", result);
return 1;
}
// Create an IDeckLinkIterator object to enumerate all DeckLink cards in the system
result = CoCreateInstance(CLSID_CDeckLinkIterator, NULL, CLSCTX_ALL, IID_IDeckLinkIterator, (void**)&deckLinkIterator);
if (FAILED(result))
{
fprintf(stderr, "A DeckLink iterator could not be created. The DeckLink drivers may not be installed.\n");
return 1;
}
// Enumerate all cards in this system
while (deckLinkIterator->Next(&deckLink) == S_OK)
{
BSTR deviceNameBSTR = NULL;
// Increment the total number of DeckLink cards found
numDevices++;
if (numDevices > 1)
printf("\n\n");
// *** Print the model name of the DeckLink card
result = deckLink->GetModelName(&deviceNameBSTR);
if (result == S_OK)
{
_bstr_t deviceName(deviceNameBSTR);
printf("Found Blackmagic device: %s\n", (char*)deviceName);
attributeResult = deckLink->QueryInterface(IID_IDeckLinkAttributes, (void**)&deckLinkAttributes);
if (attributeResult != S_OK)
{
fprintf(stderr, "Could not obtain the IDeckLinkAttributes interface");
return 1;
}
else
{
attributeResult = deckLinkAttributes->GetFlag(BMDDeckLinkSupportsInternalKeying, &keyingSupported); // is keying supported on this device?
if (attributeResult == S_OK && keyingSupported)
{
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLinkDisplayMode* deckLinkDisplayMode = NULL;
attributeResult = deckLinkAttributes->GetFlag(BMDDeckLinkSupportsHDKeying, &HDkeyingSupported);
if (attributeResult == S_OK && HDkeyingSupported)
printf("HD Mode keying supported.\n");
else
printf("SD Mode Keying supported.\n");
// check if automode detection support - if so, use it for autodetection
if (CheckFormatDetect(deckLinkAttributes) == 0)
{
fprintf(stderr, "Input mode detection not supported\n");
if (deckLink->QueryInterface(IID_IDeckLinkOutput, (void**)&deckLinkOutput) != S_OK)
{
fprintf(stderr, "Could not obtain the IDeckLinkOutput interface\n");
}
else
{
int index = 0;
if (deckLinkOutput->GetDisplayModeIterator(&displayModeIterator) != S_OK)
{
fprintf(stderr, "Could not obtain the display mode iterator\n");
}
else
{
printf("\n");
while (displayModeIterator->Next(&deckLinkDisplayMode) == S_OK)
{
BSTR displayModeBSTR = NULL;
int modeWidth;
int modeHeight;
BMDTimeValue frameRateDuration;
BMDTimeScale frameRateScale;
// Obtain the display mode's properties
modeWidth = deckLinkDisplayMode->GetWidth();
modeHeight = deckLinkDisplayMode->GetHeight();
deckLinkDisplayMode->GetFrameRate(&frameRateDuration, &frameRateScale);
if ((deckLinkDisplayMode->GetWidth() > 720) && !HDkeyingSupported)
continue;
if (deckLinkDisplayMode->GetName(&displayModeBSTR) == S_OK)
{
_bstr_t modeName(displayModeBSTR, false);
// Skip HD modes on cards such as DeckLink SDI (only PAL/NTSC are supported for keying)
printf("%d %-20s \t %d x %d \t %g FPS\n", index, (char*)modeName, modeWidth, modeHeight, (double)frameRateScale / (double)frameRateDuration);
}
deckLinkDisplayMode->Release();
index++;
}
displayModeIterator->Release();
printf("Select Mode (0-%d):\n", index-1);
scanf_s("%d", &selectedMode);
printf("Mode selected: %d\n", selectedMode);
if(selectedMode < index)
{
int modeCount = 0;
if (deckLinkOutput->GetDisplayModeIterator(&displayModeIterator) != S_OK)
{
fprintf(stderr, "Could not obtain the display mode iterator\n");
}
else
{
while(displayModeIterator->Next(&deckLinkDisplayMode) == S_OK)
{
if (selectedMode == modeCount)
{
OutputGraphic(deckLinkDisplayMode);
deckLinkDisplayMode->Release();
break;
}
deckLinkDisplayMode->Release();
modeCount++;
}
displayModeIterator->Release();
}
}
else
{
printf("Illegal video mode selected\n");
}
}
deckLinkOutput->Release();
}
}
}
deckLinkAttributes->Release();
printf("Press Enter key to exit.\n");
_getch();
}
}
deckLink->Release(); // Release the IDeckLink instance when we've finished with it to prevent leaks
}
if (deckLinkIterator != NULL)
deckLinkIterator->Release();
// If no DeckLink cards were found in the system, inform the users
if (numDevices == 0)
printf("No Blackmagic Design devices were found.\n");
// Uninitalize COM on this thread
CoUninitialize();
return 0;
}
bool DeckLinkDevice::Init()
{
ComPtr<IDeckLinkAttributes> attributes;
const HRESULT result = device->QueryInterface(IID_IDeckLinkAttributes,
(void **)&attributes);
if (result == S_OK) {
decklink_bool_t detectable = false;
if (attributes->GetFlag(BMDDeckLinkSupportsInputFormatDetection,
&detectable) == S_OK && !!detectable) {
DeckLinkDeviceMode *mode = new DeckLinkDeviceMode(
"Auto",
MODE_ID_AUTO);
inputModes.push_back(mode);
inputModeIdMap[MODE_ID_AUTO] = mode;
}
}
// Find input modes
ComPtr<IDeckLinkInput> input;
if (device->QueryInterface(IID_IDeckLinkInput, (void **) &input) == S_OK) {
IDeckLinkDisplayModeIterator *modeIterator;
if (input->GetDisplayModeIterator(&modeIterator) == S_OK) {
IDeckLinkDisplayMode *displayMode;
long long modeId = 1;
while (modeIterator->Next(&displayMode) == S_OK) {
if (displayMode == nullptr)
continue;
DeckLinkDeviceMode *mode =
new DeckLinkDeviceMode(displayMode, modeId);
inputModes.push_back(mode);
inputModeIdMap[modeId] = mode;
displayMode->Release();
++modeId;
}
modeIterator->Release();
}
}
// find output modes
ComPtr<IDeckLinkOutput> output;
if (device->QueryInterface(IID_IDeckLinkOutput, (void **) &output) == S_OK) {
IDeckLinkDisplayModeIterator *modeIterator;
if (output->GetDisplayModeIterator(&modeIterator) == S_OK) {
IDeckLinkDisplayMode *displayMode;
long long modeId = 1;
while (modeIterator->Next(&displayMode) == S_OK) {
if (displayMode == nullptr)
continue;
DeckLinkDeviceMode *mode =
new DeckLinkDeviceMode(displayMode, modeId);
outputModes.push_back(mode);
outputModeIdMap[modeId] = mode;
displayMode->Release();
++modeId;
}
modeIterator->Release();
}
}
// get keyer support
attributes->GetFlag(BMDDeckLinkSupportsExternalKeying, &supportsExternalKeyer);
attributes->GetFlag(BMDDeckLinkSupportsInternalKeying, &supportsInternalKeyer);
decklink_string_t decklinkModelName;
decklink_string_t decklinkDisplayName;
if (device->GetModelName(&decklinkModelName) != S_OK)
return false;
DeckLinkStringToStdString(decklinkModelName, name);
if (device->GetDisplayName(&decklinkDisplayName) != S_OK)
return false;
DeckLinkStringToStdString(decklinkDisplayName, displayName);
hash = displayName;
if (result != S_OK)
return true;
int64_t channels;
/* Intensity Shuttle for Thunderbolt return 2; however, it supports 8 channels */
if (name == "Intensity Shuttle Thunderbolt")
maxChannel = 8;
else if (attributes->GetInt(BMDDeckLinkMaximumAudioChannels, &channels) == S_OK)
maxChannel = (int32_t)channels;
else
maxChannel = 2;
/* http://forum.blackmagicdesign.com/viewtopic.php?f=12&t=33967
* BMDDeckLinkTopologicalID for older devices
* BMDDeckLinkPersistentID for newer ones */
int64_t value;
if (attributes->GetInt(BMDDeckLinkPersistentID, &value) != S_OK &&
attributes->GetInt(BMDDeckLinkTopologicalID, &value) != S_OK)
return true;
std::ostringstream os;
os << value << "_" << name;
hash = os.str();
return true;
}
// Prepare IDeckLinkInput to capture video:
// - Get frame width, height, duration, ...
// - Setup callback object and video mode and
// - Start streams
bool CaptureHelper::setupDeckLinkInput()
{
bool result = false;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLinkDisplayMode* deckLinkDisplayMode = NULL;
m_width = -1;
// get frame scale and duration for the video mode
if (m_deckLinkInput->GetDisplayModeIterator(&displayModeIterator) != S_OK)
goto bail;
while (displayModeIterator->Next(&deckLinkDisplayMode) == S_OK)
{
if (deckLinkDisplayMode->GetDisplayMode() == BMD_DISPLAYMODE)
{
m_width = deckLinkDisplayMode->GetWidth();
m_height = deckLinkDisplayMode->GetHeight();
deckLinkDisplayMode->GetFrameRate(&m_frameDuration, &m_timeScale);
deckLinkDisplayMode->Release();
break;
}
deckLinkDisplayMode->Release();
}
displayModeIterator->Release();
if (m_width == -1)
{
printf("Unable to find requested video mode\n");
goto bail;
}
// convert the in- and out-point timecodes to a frame count
GET_FRAME_COUNT(m_inPointFrameCount, START_TC, m_timeScale, m_frameDuration);
GET_FRAME_COUNT(m_outPointFrameCount, STOP_TC, m_timeScale, m_frameDuration);
// set callback
m_deckLinkInput->SetCallback(this);
// enable video input
if (m_deckLinkInput->EnableVideoInput(BMD_DISPLAYMODE, PIXEL_FMT, bmdVideoInputFlagDefault) != S_OK)
{
printf("Could not enable video input\n");
goto bail;
}
// start streaming
if (m_deckLinkInput->StartStreams() != S_OK)
{
printf("Could not start streams\n");
goto bail;
}
result = true;
bail:
return result;
}
void print_output_modes(IDeckLink *deckLink)
{
IDeckLinkOutput *deckLinkOutput = NULL;
IDeckLinkDisplayModeIterator *displayModeIterator = NULL;
IDeckLinkDisplayMode *displayMode = NULL;
HRESULT result;
int displayModeCount = 0;
// Query the DeckLink for its configuration interface
result = deckLink->QueryInterface(IID_IDeckLinkOutput,
(void **)&deckLinkOutput);
if (result != S_OK) {
fprintf(
stderr,
"Could not obtain the IDeckLinkOutput interface - result = %08x\n",
result);
goto bail;
}
// Obtain an IDeckLinkDisplayModeIterator to enumerate the display modes supported on output
result = deckLinkOutput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK) {
fprintf(
stderr,
"Could not obtain the video output display mode iterator - result = %08x\n",
result);
goto bail;
}
// List all supported output display modes
printf("Supported video output display modes and pixel formats:\n");
while (displayModeIterator->Next(&displayMode) == S_OK) {
BMDProbeString str;
result = displayMode->GetName(&str);
if (result == S_OK) {
char modeName[64];
int modeWidth;
int modeHeight;
BMDTimeValue frameRateDuration;
BMDTimeScale frameRateScale;
int pixelFormatIndex = 0; // index into the gKnownPixelFormats / gKnownFormatNames arrays
BMDDisplayModeSupport displayModeSupport;
// Obtain the display mode's properties
modeWidth = displayMode->GetWidth();
modeHeight = displayMode->GetHeight();
displayMode->GetFrameRate(&frameRateDuration, &frameRateScale);
printf(" %2d: %-20s \t %d x %d \t %7g FPS\n",
displayModeCount++, ToStr(str), modeWidth, modeHeight,
(double)frameRateScale / (double)frameRateDuration);
FreeStr(str);
}
// Release the IDeckLinkDisplayMode object to prevent a leak
displayMode->Release();
}
// printf("\n");
bail:
// Ensure that the interfaces we obtained are released to prevent a memory leak
if (displayModeIterator != NULL)
displayModeIterator->Release();
if (deckLinkOutput != NULL)
deckLinkOutput->Release();
}
bool ofxBlackmagicGrabber::initGrabber(int w, int h) {
IDeckLinkIterator *deckLinkIterator = CreateDeckLinkIteratorInstance();
int displayModeCount = 0;
int exitStatus = 1;
bool foundDisplayMode = false;
HRESULT result;
IDeckLinkDisplayModeIterator *displayModeIterator;
if (!deckLinkIterator){
ofLogError(LOG_NAME) << "This application requires the DeckLink drivers installed.";
goto bail;
}
for(int i=0;i<deviceID+1;i++){
result = deckLinkIterator->Next(&deckLink);
if (result != S_OK){
ofLogError(LOG_NAME) << "Couldn't open device" << deviceID;
goto bail;
}
}
if (deckLink->QueryInterface(IID_IDeckLinkInput, (void**)&deckLinkInput) != S_OK)
goto bail;
deckLinkInput->SetCallback(this);
// Obtain an IDeckLinkDisplayModeIterator to enumerate the display modes supported on output
result = deckLinkInput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK){
ofLogError(LOG_NAME) << "Could not obtain the video output display mode iterator - result =" << result;
goto bail;
}
if (g_videoModeIndex < 0){
ofLogError(LOG_NAME) << "No video mode specified, specify it before initGrabber using setVideoMode";
goto bail;
}
while (displayModeIterator->Next(&displayMode) == S_OK){
if (g_videoModeIndex == displayMode->GetDisplayMode()){
BMDDisplayModeSupport result;
CFStringRef displayModeName;
foundDisplayMode = true;
displayMode->GetName(&displayModeName);
selectedDisplayMode = displayMode->GetDisplayMode();
pixels[0].allocate(displayMode->GetWidth(),displayMode->GetHeight(),OF_IMAGE_COLOR);
pixels[1].allocate(displayMode->GetWidth(),displayMode->GetHeight(),OF_IMAGE_COLOR);
ofLogVerbose(LOG_NAME) << "device initialized:" << displayMode->GetWidth() << displayMode->GetHeight();
deckLinkInput->DoesSupportVideoMode(selectedDisplayMode, pixelFormat, bmdVideoInputFlagDefault, &result, NULL);
if (result == bmdDisplayModeNotSupported){
ofLogError(LOG_NAME) << "The display mode" << displayModeName << "is not supported with the selected pixel format";
goto bail;
}
if (inputFlags & bmdVideoInputDualStream3D){
if (!(displayMode->GetFlags() & bmdDisplayModeSupports3D)){
ofLogError(LOG_NAME) << "The display mode" << displayModeName << "is not supported with 3D";
goto bail;
}
}
break;
}
displayModeCount++;
displayMode->Release();
}
if (!foundDisplayMode){
ofLogError(LOG_NAME) << "Invalid mode" << g_videoModeIndex << "specified";
goto bail;
}
result = deckLinkInput->EnableVideoInput(selectedDisplayMode, pixelFormat, inputFlags);
if(result != S_OK){
ofLogError(LOG_NAME) << "Failed to enable video input. Is another application using the card?";
goto bail;
}
#if 0 // no audio by now
result = deckLinkInput->EnableAudioInput(bmdAudioSampleRate48kHz, g_audioSampleDepth, g_audioChannels);
if(result != S_OK){
goto bail;
}
#endif
result = deckLinkInput->StartStreams();
if(result != S_OK){
goto bail;
}
// All Okay.
exitStatus = 0;
return true;
bail:
if (displayModeIterator != NULL){
displayModeIterator->Release();
displayModeIterator = NULL;
}
if (deckLinkIterator != NULL)
deckLinkIterator->Release();
close();
return false;
}
static void print_output_modes (IDeckLink* deckLink)
{
IDeckLinkOutput* deckLinkOutput = NULL;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLinkDisplayMode* displayMode = NULL;
HRESULT result;
// Query the DeckLink for its configuration interface
result = deckLink->QueryInterface(IID_IDeckLinkOutput, (void**)&deckLinkOutput);
if (result != S_OK)
{
fprintf(stderr, "Could not obtain the IDeckLinkOutput interface - result = %08x\n", result);
goto bail;
}
// Obtain an IDeckLinkDisplayModeIterator to enumerate the display modes supported on output
result = deckLinkOutput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK)
{
fprintf(stderr, "Could not obtain the video output display mode iterator - result = %08x\n", result);
goto bail;
}
// List all supported output display modes
printf("Supported video output display modes and pixel formats:\n");
while (displayModeIterator->Next(&displayMode) == S_OK)
{
CFStringRef displayModeString;
result = displayMode->GetName(&displayModeString);
if (result == S_OK)
{
char modeName[64];
int modeWidth;
int modeHeight;
BMDTimeValue frameRateDuration;
BMDTimeScale frameRateScale;
int pixelFormatIndex = 0; // index into the gKnownPixelFormats / gKnownFormatNames arrays
BMDDisplayModeSupport displayModeSupport;
// Obtain the display mode's properties
modeWidth = displayMode->GetWidth();
modeHeight = displayMode->GetHeight();
displayMode->GetFrameRate(&frameRateDuration, &frameRateScale);
printf(" %-20s \t %d x %d \t %7g FPS\t", displayModeString, modeWidth, modeHeight, (double)frameRateScale / (double)frameRateDuration);
// Print the supported pixel formats for this display mode
while ((gKnownPixelFormats[pixelFormatIndex] != 0) && (gKnownPixelFormatNames[pixelFormatIndex] != NULL))
{
if ((deckLinkOutput->DoesSupportVideoMode(displayMode->GetDisplayMode(), gKnownPixelFormats[pixelFormatIndex], bmdVideoOutputFlagDefault, &displayModeSupport, NULL) == S_OK)
&& (displayModeSupport != bmdDisplayModeNotSupported))
{
printf("%s\t", gKnownPixelFormatNames[pixelFormatIndex]);
}
pixelFormatIndex++;
}
printf("\n");
// free(displayModeString);
}
// Release the IDeckLinkDisplayMode object to prevent a leak
displayMode->Release();
}
printf("\n");
bail:
// Ensure that the interfaces we obtained are released to prevent a memory leak
if (displayModeIterator != NULL)
displayModeIterator->Release();
if (deckLinkOutput != NULL)
deckLinkOutput->Release();
}
av_cold int ff_decklink_write_header(AVFormatContext *avctx)
{
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
struct decklink_ctx *ctx;
IDeckLinkDisplayModeIterator *itermode;
IDeckLinkIterator *iter;
IDeckLink *dl = NULL;
unsigned int n;
ctx = (struct decklink_ctx *) av_mallocz(sizeof(struct decklink_ctx));
if (!ctx)
return AVERROR(ENOMEM);
ctx->list_devices = cctx->list_devices;
ctx->list_formats = cctx->list_formats;
ctx->preroll = cctx->preroll;
cctx->ctx = ctx;
iter = CreateDeckLinkIteratorInstance();
if (!iter) {
av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator\n");
return AVERROR(EIO);
}
/* List available devices. */
if (ctx->list_devices) {
ff_decklink_list_devices(avctx);
return AVERROR_EXIT;
}
/* Open device. */
while (iter->Next(&dl) == S_OK) {
const char *displayName;
ff_decklink_get_display_name(dl, &displayName);
if (!strcmp(avctx->filename, displayName)) {
av_free((void *) displayName);
ctx->dl = dl;
break;
}
av_free((void *) displayName);
dl->Release();
}
iter->Release();
if (!ctx->dl) {
av_log(avctx, AV_LOG_ERROR, "Could not open '%s'\n", avctx->filename);
return AVERROR(EIO);
}
/* Get output device. */
if (ctx->dl->QueryInterface(IID_IDeckLinkOutput, (void **) &ctx->dlo) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not open output device from '%s'\n",
avctx->filename);
ctx->dl->Release();
return AVERROR(EIO);
}
/* List supported formats. */
if (ctx->list_formats) {
ff_decklink_list_formats(avctx);
ctx->dlo->Release();
ctx->dl->Release();
return AVERROR_EXIT;
}
if (ctx->dlo->GetDisplayModeIterator(&itermode) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
ctx->dl->Release();
return AVERROR(EIO);
}
/* Setup streams. */
for (n = 0; n < avctx->nb_streams; n++) {
AVStream *st = avctx->streams[n];
AVCodecContext *c = st->codec;
if (c->codec_type == AVMEDIA_TYPE_AUDIO) {
if (decklink_setup_audio(avctx, st))
goto error;
} else if (c->codec_type == AVMEDIA_TYPE_VIDEO) {
if (decklink_setup_video(avctx, st))
goto error;
} else {
av_log(avctx, AV_LOG_ERROR, "Unsupported stream type.\n");
goto error;
}
}
itermode->Release();
return 0;
error:
ctx->dlo->Release();
ctx->dl->Release();
return AVERROR(EIO);
}
void BMDConfig::DisplayUsage(int status)
{
HRESULT result = E_FAIL;
IDeckLinkIterator* deckLinkIterator = CreateDeckLinkIteratorInstance();
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLink* deckLink = NULL;
IDeckLink* deckLinkSelected = NULL;
int deckLinkCount = 0;
char* deckLinkName = NULL;
IDeckLinkAttributes* deckLinkAttributes = NULL;
bool formatDetectionSupported;
IDeckLinkInput* deckLinkInput = NULL;
IDeckLinkDisplayMode* displayModeUsage;
int displayModeCount = 0;
char* displayModeName;
fprintf(stderr,
"Usage: Capture -d <device id> -m <mode id> [OPTIONS]\n"
"\n"
" -d <device id>:\n"
);
// Loop through all available devices
while (deckLinkIterator->Next(&deckLink) == S_OK)
{
result = deckLink->GetModelName((const char**)&deckLinkName);
if (result == S_OK)
{
fprintf(stderr,
" %2d: %s%s\n",
deckLinkCount,
deckLinkName,
deckLinkCount == m_deckLinkIndex ? " (selected)" : ""
);
free(deckLinkName);
}
if (deckLinkCount == m_deckLinkIndex)
deckLinkSelected = deckLink;
else
deckLink->Release();
++deckLinkCount;
}
if (deckLinkCount == 0)
fprintf(stderr, " No DeckLink devices found. Is the driver loaded?\n");
deckLinkName = NULL;
if (deckLinkSelected != NULL)
deckLinkSelected->GetModelName((const char**)&deckLinkName);
fprintf(stderr,
" -m <mode id>: (%s)\n",
deckLinkName ? deckLinkName : ""
);
if (deckLinkName != NULL)
free(deckLinkName);
// Loop through all available display modes on the delected DeckLink device
if (deckLinkSelected == NULL)
{
fprintf(stderr, " No DeckLink device selected\n");
goto bail;
}
result = deckLinkSelected->QueryInterface(IID_IDeckLinkAttributes, (void**)&deckLinkAttributes);
if (result == S_OK)
{
result = deckLinkAttributes->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &formatDetectionSupported);
if (result == S_OK && formatDetectionSupported)
fprintf(stderr, " -1: auto detect format\n");
}
result = deckLinkSelected->QueryInterface(IID_IDeckLinkInput, (void**)&deckLinkInput);
if (result != S_OK)
goto bail;
result = deckLinkInput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK)
goto bail;
while (displayModeIterator->Next(&displayModeUsage) == S_OK)
{
result = displayModeUsage->GetName((const char **)&displayModeName);
if (result == S_OK)
{
BMDTimeValue frameRateDuration;
BMDTimeValue frameRateScale;
displayModeUsage->GetFrameRate(&frameRateDuration, &frameRateScale);
fprintf(stderr,
" %2d: %-20s \t %li x %li \t %g FPS\n",
displayModeCount,
displayModeName,
displayModeUsage->GetWidth(),
displayModeUsage->GetHeight(),
(double)frameRateScale / (double)frameRateDuration
);
free(displayModeName);
}
displayModeUsage->Release();
++displayModeCount;
}
bail:
fprintf(stderr,
" -p <pixelformat>\n"
" 0: 8 bit YUV (4:2:2) (default)\n"
" 1: 10 bit YUV (4:2:2)\n"
" 2: 10 bit RGB (4:4:4)\n"
" -t <format> Print timecode\n"
" rp188: RP 188\n"
" vitc: VITC\n"
" serial: Serial Timecode\n"
" -v <filename> Filename raw video will be written to\n"
" -a <filename> Filename raw audio will be written to\n"
" -l <lcm channel> Channel name to publish images to LCM\n"
" -q <jpeg quality> JPEG compression quality for LCM images (1-100 - default is 90)\n"
" -c <channels> Audio Channels (2, 8 or 16 - default is 2)\n"
" -s <depth> Audio Sample Depth (16 or 32 - default is 16)\n"
" -n <frames> Number of frames to capture (default is unlimited)\n"
" -3 Capture Stereoscopic 3D (Requires 3D Hardware support)\n"
"\n"
"Capture video and/or audio to a file. Raw video and/or audio can be viewed with mplayer eg:\n"
"\n"
" Capture -d 0 -m 2 -n 50 -v video.raw -a audio.raw\n"
" mplayer video.raw -demuxer rawvideo -rawvideo pal:uyvy -audiofile audio.raw -audio-demuxer 20 -rawaudio rate=48000\n"
"\n"
"LCM capture example command line:\n"
"\n"
" DecklinkCapture -d 0 -m 14 -q 95 -l DECKLINK_VIDEO_CAPTURE\n"
"\n"
);
if (deckLinkIterator != NULL)
deckLinkIterator->Release();
if (displayModeIterator != NULL)
displayModeIterator->Release();
if (deckLinkInput != NULL)
deckLinkInput->Release();
if (deckLinkAttributes != NULL)
deckLinkAttributes->Release();
if (deckLinkSelected != NULL)
deckLinkSelected->Release();
exit(status);
}
bool OpenGLComposite::InitDeckLink()
{
bool bSuccess = false;
IDeckLinkIterator* pDLIterator = NULL;
IDeckLink* pDL = NULL;
IDeckLinkDisplayModeIterator* pDLDisplayModeIterator = NULL;
IDeckLinkDisplayMode* pDLDisplayMode = NULL;
BMDDisplayMode displayMode = bmdModeHD1080i5994; // mode to use for capture and playout
float fps;
HRESULT result;
result = CoCreateInstance(CLSID_CDeckLinkIterator, NULL, CLSCTX_ALL, IID_IDeckLinkIterator, (void**)&pDLIterator);
if (FAILED(result))
{
MessageBox(NULL, _T("Please install the Blackmagic DeckLink drivers to use the features of this application."), _T("This application requires the DeckLink drivers installed."), MB_OK);
return false;
}
while (pDLIterator->Next(&pDL) == S_OK)
{
// Use first board found as capture device, second board will be playout device
if (! mDLInput)
{
if (pDL->QueryInterface(IID_IDeckLinkInput, (void**)&mDLInput) != S_OK)
goto error;
}
else if (! mDLOutput)
{
if (pDL->QueryInterface(IID_IDeckLinkOutput, (void**)&mDLOutput) != S_OK)
goto error;
}
}
if (! mDLOutput || ! mDLInput)
{
MessageBox(NULL, _T("Expected both Input and Output DeckLink devices"), _T("This application requires two DeckLink devices."), MB_OK);
goto error;
}
if (mDLOutput->GetDisplayModeIterator(&pDLDisplayModeIterator) != S_OK)
{
MessageBox(NULL, _T("Cannot get Display Mode Iterator."), _T("DeckLink error."), MB_OK);
goto error;
}
while (pDLDisplayModeIterator->Next(&pDLDisplayMode) == S_OK)
{
if (pDLDisplayMode->GetDisplayMode() == displayMode)
break;
pDLDisplayMode->Release();
pDLDisplayMode = NULL;
}
pDLDisplayModeIterator->Release();
if (pDLDisplayMode == NULL)
{
MessageBox(NULL, _T("Cannot get specified BMDDisplayMode."), _T("DeckLink error."), MB_OK);
goto error;
}
mFrameWidth = pDLDisplayMode->GetWidth();
mFrameHeight = pDLDisplayMode->GetHeight();
if (! CheckOpenGLExtensions())
goto error;
if (! InitOpenGLState())
goto error;
// Compute a rotate angle rate so box will spin at a rate independent of video mode frame rate
pDLDisplayMode->GetFrameRate(&mFrameDuration, &mFrameTimescale);
fps = (float)mFrameTimescale / (float)mFrameDuration;
mRotateAngleRate = 35.0f / fps; // rotate box through 35 degrees every second
// Resize window to match video frame, but scale large formats down by half for viewing
if (mFrameWidth < 1920)
resizeWindow(mFrameWidth, mFrameHeight);
else
resizeWindow(mFrameWidth / 2, mFrameHeight / 2);
if (mFastTransferExtensionAvailable)
{
// Initialize fast video frame transfers
if (! VideoFrameTransfer::initialize(mFrameWidth, mFrameHeight, mCaptureTexture, mFBOTexture))
{
MessageBox(NULL, _T("Cannot initialize video transfers."), _T("VideoFrameTransfer error."), MB_OK);
goto error;
}
}
// Capture will use a user-supplied frame memory allocator
mCaptureAllocator = new PinnedMemoryAllocator(hGLDC, hGLRC, VideoFrameTransfer::CPUtoGPU, 3);
if (mDLInput->SetVideoInputFrameMemoryAllocator(mCaptureAllocator) != S_OK)
goto error;
if (mDLInput->EnableVideoInput(displayMode, bmdFormat8BitYUV, bmdVideoInputFlagDefault) != S_OK)
goto error;
mCaptureDelegate = new CaptureDelegate(this);
if (mDLInput->SetCallback(mCaptureDelegate) != S_OK)
goto error;
// Playout will use a user-supplied frame memory allocator
mPlayoutAllocator = new PinnedMemoryAllocator(hGLDC, hGLRC, VideoFrameTransfer::GPUtoCPU, 1);
if (mDLOutput->SetVideoOutputFrameMemoryAllocator(mPlayoutAllocator) != S_OK)
goto error;
if (mDLOutput->EnableVideoOutput(displayMode, bmdVideoOutputFlagDefault) != S_OK)
goto error;
// Create a queue of 10 IDeckLinkMutableVideoFrame objects to use for scheduling output video frames.
// The ScheduledFrameCompleted() callback will immediately schedule a new frame using the next video frame from this queue.
for (int i = 0; i < 10; i++)
{
// The frame read back from the GPU frame buffer and used for the playout video frame is in BGRA format.
// The BGRA frame will be converted on playout to YCbCr either in hardware on most DeckLink cards or in software
// within the DeckLink API for DeckLink devices without this hardware conversion.
// If you want RGB 4:4:4 format to be played out "over the wire" in SDI, turn on the "Use 4:4:4 SDI" in the control
// panel or turn on the bmdDeckLinkConfig444SDIVideoOutput flag using the IDeckLinkConfiguration interface.
IDeckLinkMutableVideoFrame* outputFrame;
if (mDLOutput->CreateVideoFrame(mFrameWidth, mFrameHeight, mFrameWidth*4, bmdFormat8BitBGRA, bmdFrameFlagFlipVertical, &outputFrame) != S_OK)
goto error;
mDLOutputVideoFrameQueue.push_back(outputFrame);
}
mPlayoutDelegate = new PlayoutDelegate(this);
if (mPlayoutDelegate == NULL)
goto error;
if (mDLOutput->SetScheduledFrameCompletionCallback(mPlayoutDelegate) != S_OK)
goto error;
bSuccess = true;
error:
if (!bSuccess)
{
if (mDLInput != NULL)
{
mDLInput->Release();
mDLInput = NULL;
}
if (mDLOutput != NULL)
{
mDLOutput->Release();
mDLOutput = NULL;
}
}
if (pDL != NULL)
{
pDL->Release();
pDL = NULL;
}
if (pDLIterator != NULL)
{
pDLIterator->Release();
pDLIterator = NULL;
}
return bSuccess;
}
av_cold int ff_decklink_read_header(AVFormatContext *avctx)
{
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
struct decklink_ctx *ctx;
IDeckLinkDisplayModeIterator *itermode;
IDeckLinkIterator *iter;
IDeckLink *dl = NULL;
AVStream *st;
HRESULT result;
char fname[1024];
char *tmp;
int mode_num = 0;
ctx = (struct decklink_ctx *) av_mallocz(sizeof(struct decklink_ctx));
if (!ctx)
return AVERROR(ENOMEM);
ctx->list_devices = cctx->list_devices;
ctx->list_formats = cctx->list_formats;
ctx->preroll = cctx->preroll;
cctx->ctx = ctx;
iter = CreateDeckLinkIteratorInstance();
if (!iter) {
av_log(avctx, AV_LOG_ERROR, "Could not create DeckLink iterator\n");
return AVERROR(EIO);
}
/* List available devices. */
if (ctx->list_devices) {
ff_decklink_list_devices(avctx);
return AVERROR_EXIT;
}
strcpy (fname, avctx->filename);
tmp=strchr (fname, '@');
if (tmp != NULL) {
mode_num = atoi (tmp+1);
*tmp = 0;
}
/* Open device. */
while (iter->Next(&dl) == S_OK) {
const char *displayName;
ff_decklink_get_display_name(dl, &displayName);
if (!strcmp(fname, displayName)) {
av_free((void *) displayName);
ctx->dl = dl;
break;
}
av_free((void *) displayName);
dl->Release();
}
iter->Release();
if (!ctx->dl) {
av_log(avctx, AV_LOG_ERROR, "Could not open '%s'\n", fname);
return AVERROR(EIO);
}
/* Get input device. */
if (ctx->dl->QueryInterface(IID_IDeckLinkInput, (void **) &ctx->dli) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not open output device from '%s'\n",
avctx->filename);
ctx->dl->Release();
return AVERROR(EIO);
}
/* List supported formats. */
if (ctx->list_formats) {
ff_decklink_list_formats(avctx, DIRECTION_IN);
ctx->dli->Release();
ctx->dl->Release();
return AVERROR_EXIT;
}
if (ctx->dli->GetDisplayModeIterator(&itermode) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
ctx->dl->Release();
return AVERROR(EIO);
}
if (mode_num > 0) {
if (ff_decklink_set_format(avctx, DIRECTION_IN, mode_num) < 0) {
av_log(avctx, AV_LOG_ERROR, "Could not set mode %d for %s\n", mode_num, fname);
goto error;
}
}
itermode->Release();
/* Setup streams. */
st = avformat_new_stream(avctx, NULL);
if (!st) {
av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n");
goto error;
}
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
st->codec->codec_id = AV_CODEC_ID_PCM_S16LE;
st->codec->sample_rate = bmdAudioSampleRate48kHz;
st->codec->channels = 2;
avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
ctx->audio_st=st;
st = avformat_new_stream(avctx, NULL);
if (!st) {
av_log(avctx, AV_LOG_ERROR, "Cannot add stream\n");
goto error;
}
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = AV_CODEC_ID_RAWVIDEO;
st->codec->width = ctx->bmd_width;
st->codec->height = ctx->bmd_height;
st->codec->pix_fmt = AV_PIX_FMT_UYVY422;
st->codec->time_base.den = ctx->bmd_tb_den;
st->codec->time_base.num = ctx->bmd_tb_num;
st->codec->bit_rate = avpicture_get_size(st->codec->pix_fmt, ctx->bmd_width, ctx->bmd_height) * 1/av_q2d(st->codec->time_base) * 8;
st->codec->codec_tag = MKTAG('U', 'Y', 'V', 'Y');
avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
ctx->video_st=st;
result = ctx->dli->EnableAudioInput(bmdAudioSampleRate48kHz, bmdAudioSampleType16bitInteger, 2);
if (result != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Cannot enable audio input\n");
goto error;
}
result = ctx->dli->EnableVideoInput(ctx->bmd_mode, bmdFormat8BitYUV, bmdVideoInputFlagDefault);
if (result != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Cannot enable video input\n");
goto error;
}
avpacket_queue_init (avctx, &ctx->queue);
if (decklink_start_input (avctx) != S_OK) {
av_log(avctx, AV_LOG_ERROR, "Cannot start input stream\n");
goto error;
}
return 0;
error:
ctx->dli->Release();
ctx->dl->Release();
return AVERROR(EIO);
}
void krad_decklink_capture_info () {
IDeckLink *deckLink;
IDeckLinkInput *deckLinkInput;
IDeckLinkIterator *deckLinkIterator;
IDeckLinkDisplayModeIterator *displayModeIterator;
IDeckLinkDisplayMode *displayMode;
HRESULT result;
int displayModeCount;
char *displayModeString;
displayModeString = NULL;
displayModeCount = 0;
deckLinkIterator = CreateDeckLinkIteratorInstance();
if (!deckLinkIterator) {
printke ("Krad Decklink: This application requires the DeckLink drivers installed.\n");
}
/* Connect to the first DeckLink instance */
result = deckLinkIterator->Next(&deckLink);
if (result != S_OK) {
printke ("Krad Decklink: No DeckLink PCI cards found.\n");
}
result = deckLink->QueryInterface(IID_IDeckLinkInput, (void**)&deckLinkInput);
if (result != S_OK) {
printke ("Krad Decklink: Fail QueryInterface\n");
}
result = deckLinkInput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK) {
printke ("Krad Decklink: Could not obtain the video output display mode iterator - result = %08x\n", result);
}
while (displayModeIterator->Next(&displayMode) == S_OK) {
result = displayMode->GetName((const char **) &displayModeString);
if (result == S_OK) {
BMDTimeValue frameRateDuration, frameRateScale;
displayMode->GetFrameRate(&frameRateDuration, &frameRateScale);
printkd ("%2d: %-20s \t %li x %li \t %g FPS\n",
displayModeCount, displayModeString, displayMode->GetWidth(), displayMode->GetHeight(),
(double)frameRateScale / (double)frameRateDuration);
free (displayModeString);
displayModeCount++;
}
displayMode->Release();
}
if (displayModeIterator != NULL) {
displayModeIterator->Release();
displayModeIterator = NULL;
}
if (deckLinkInput != NULL) {
deckLinkInput->Release();
deckLinkInput = NULL;
}
if (deckLink != NULL) {
deckLink->Release();
deckLink = NULL;
}
if (deckLinkIterator != NULL) {
deckLinkIterator->Release();
}
}
void SignalGenerator::setup()
{
IDeckLinkIterator* deckLinkIterator = NULL;
bool success = false;
// **** Find a DeckLink instance and obtain video output interface
deckLinkIterator = CreateDeckLinkIteratorInstance();
if (deckLinkIterator == NULL)
{
QMessageBox::critical(this, "This application requires the DeckLink drivers installed.", "Please install the Blackmagic DeckLink drivers to use the features of this application.");
goto bail;
}
// Connect to the first DeckLink instance
if (deckLinkIterator->Next(&deckLink) != S_OK)
{
QMessageBox::critical(this, "This application requires a DeckLink PCI card.", "You will not be able to use the features of this application until a DeckLink PCI card is installed.");
goto bail;
}
// Obtain the audio/video output interface (IDeckLinkOutput)
if (deckLink->QueryInterface(IID_IDeckLinkOutput, (void**)&deckLinkOutput) != S_OK)
goto bail;
// Create a delegate class to allow the DeckLink API to call into our code
playerDelegate = new PlaybackDelegate(this, deckLinkOutput);
if (playerDelegate == NULL)
goto bail;
// Provide the delegate to the audio and video output interfaces
deckLinkOutput->SetScheduledFrameCompletionCallback(playerDelegate);
deckLinkOutput->SetAudioCallback(playerDelegate);
// Populate the display mode menu with a list of display modes supported by the installed DeckLink card
IDeckLinkDisplayModeIterator* displayModeIterator;
IDeckLinkDisplayMode* deckLinkDisplayMode;
ui->videoFormatPopup->clear();
if (deckLinkOutput->GetDisplayModeIterator(&displayModeIterator) != S_OK)
goto bail;
while (displayModeIterator->Next(&deckLinkDisplayMode) == S_OK)
{
const char * modeName;
if (deckLinkDisplayMode->GetName(&modeName) == S_OK)
{
ui->videoFormatPopup->addItem(modeName, QVariant::fromValue((void *)deckLinkDisplayMode));
}
}
displayModeIterator->Release();
enableInterface(true);
deckLinkOutput->SetScreenPreviewCallback(previewView);
success = true;
bail:
if (success == false)
{
// Release any resources that were partially allocated
if (deckLinkOutput != NULL)
{
deckLinkOutput->Release();
deckLinkOutput = NULL;
}
//
if (deckLink != NULL)
{
deckLink->Release();
deckLink = NULL;
}
// Disable the user interface if we could not succsssfully connect to a DeckLink device
ui->startButton->setEnabled(false);
enableInterface(false);
}
if (deckLinkIterator != NULL)
deckLinkIterator->Release();
}
int ff_decklink_set_format(AVFormatContext *avctx,
int width, int height,
int tb_num, int tb_den,
decklink_direction_t direction, int num)
{
struct decklink_cctx *cctx = (struct decklink_cctx *) avctx->priv_data;
struct decklink_ctx *ctx = (struct decklink_ctx *)cctx->ctx;
BMDDisplayModeSupport support;
IDeckLinkDisplayModeIterator *itermode;
IDeckLinkDisplayMode *mode;
int i = 1;
HRESULT res;
if (direction == DIRECTION_IN) {
res = ctx->dli->GetDisplayModeIterator (&itermode);
} else {
res = ctx->dlo->GetDisplayModeIterator (&itermode);
}
if (res!= S_OK) {
av_log(avctx, AV_LOG_ERROR, "Could not get Display Mode Iterator\n");
return AVERROR(EIO);
}
if (tb_num == 1) {
tb_num *= 1000;
tb_den *= 1000;
}
ctx->bmd_mode = bmdModeUnknown;
while ((ctx->bmd_mode == bmdModeUnknown) && itermode->Next(&mode) == S_OK) {
BMDTimeValue bmd_tb_num, bmd_tb_den;
int bmd_width = mode->GetWidth();
int bmd_height = mode->GetHeight();
mode->GetFrameRate(&bmd_tb_num, &bmd_tb_den);
if ((bmd_width == width && bmd_height == height &&
bmd_tb_num == tb_num && bmd_tb_den == tb_den) || i == num) {
ctx->bmd_mode = mode->GetDisplayMode();
ctx->bmd_width = bmd_width;
ctx->bmd_height = bmd_height;
ctx->bmd_tb_den = bmd_tb_den;
ctx->bmd_tb_num = bmd_tb_num;
ctx->bmd_field_dominance = mode->GetFieldDominance();
av_log(avctx, AV_LOG_INFO, "Found Decklink mode %d x %d with rate %.2f%s\n",
bmd_width, bmd_height, (float)bmd_tb_den/(float)bmd_tb_num,
(ctx->bmd_field_dominance==bmdLowerFieldFirst || ctx->bmd_field_dominance==bmdUpperFieldFirst)?"(i)":"");
}
mode->Release();
i++;
}
itermode->Release();
if (ctx->bmd_mode == bmdModeUnknown)
return -1;
if (direction == DIRECTION_IN) {
if (ctx->dli->DoesSupportVideoMode(ctx->bmd_mode, bmdFormat8BitYUV,
bmdVideoOutputFlagDefault,
&support, NULL) != S_OK)
return -1;
} else {
if (ctx->dlo->DoesSupportVideoMode(ctx->bmd_mode, bmdFormat8BitYUV,
bmdVideoOutputFlagDefault,
&support, NULL) != S_OK)
return -1;
}
if (support == bmdDisplayModeSupported)
return 0;
return -1;
}
int main(int argc, char *argv[]) {
HRESULT result;
int exitStatus = 1;
int idx;
IDeckLinkIterator* deckLinkIterator = NULL;
IDeckLink* deckLink = NULL;
IDeckLinkAttributes* deckLinkAttributes = NULL;
bool formatDetectionSupported;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLinkDisplayMode* displayMode = NULL;
char* displayModeName = NULL;
BMDDisplayModeSupport displayModeSupported;
DeckLinkCaptureDelegate* delegate = NULL;
pthread_mutex_init(&g_sleepMutex, NULL);
pthread_cond_init(&g_sleepCond, NULL);
signal(SIGINT, sigfunc);
signal(SIGTERM, sigfunc);
signal(SIGHUP, sigfunc);
// Network
g_video_sock = socket(AF_INET, SOCK_STREAM, 0);
g_video_addr.sin_family = AF_INET;
g_video_addr.sin_port = htons(62310);
g_video_addr.sin_addr.s_addr = inet_addr("192.168.100.31");
connect(g_video_sock, (struct sockaddr *)&g_video_addr, sizeof(g_video_addr));
g_audio_sock = socket(AF_INET, SOCK_STREAM, 0);
g_audio_addr.sin_family = AF_INET;
g_audio_addr.sin_port = htons(62311);
g_audio_addr.sin_addr.s_addr = inet_addr("192.168.100.31");
connect(g_audio_sock, (struct sockaddr *)&g_audio_addr, sizeof(g_audio_addr));
// Process the command line arguments
if (!g_config.ParseArguments(argc, argv)) {
g_config.DisplayUsage(exitStatus);
goto bail;
}
// Get the DeckLink device
deckLinkIterator = CreateDeckLinkIteratorInstance();
if (!deckLinkIterator) {
fprintf(stderr, "This application requires the DeckLink drivers installed.\n");
goto bail;
}
idx = g_config.m_deckLinkIndex;
while ((result = deckLinkIterator->Next(&deckLink)) == S_OK) {
if (idx == 0)
break;
--idx;
deckLink->Release();
}
if (result != S_OK || deckLink == NULL) {
fprintf(stderr, "Unable to get DeckLink device %u\n", g_config.m_deckLinkIndex);
goto bail;
}
// Get the input (capture) interface of the DeckLink device
result = deckLink->QueryInterface(IID_IDeckLinkInput, (void**)&g_deckLinkInput);
if (result != S_OK)
goto bail;
// Get the display mode
if (g_config.m_displayModeIndex == -1) {
// Check the card supports format detection
result = deckLink->QueryInterface(IID_IDeckLinkAttributes, (void**)&deckLinkAttributes);
if (result == S_OK) {
result = deckLinkAttributes->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &formatDetectionSupported);
if (result != S_OK || !formatDetectionSupported) {
fprintf(stderr, "Format detection is not supported on this device\n");
goto bail;
}
}
g_config.m_inputFlags |= bmdVideoInputEnableFormatDetection;
// Format detection still needs a valid mode to start with
idx = 0;
} else {
idx = g_config.m_displayModeIndex;
}
result = g_deckLinkInput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK) {
goto bail;
}
while ((result = displayModeIterator->Next(&displayMode)) == S_OK) {
if (idx == 0) {
break;
}
--idx;
displayMode->Release();
}
if (result != S_OK || displayMode == NULL) {
fprintf(stderr, "Unable to get display mode %d\n", g_config.m_displayModeIndex);
goto bail;
}
// Get display mode name
result = displayMode->GetName((const char**)&displayModeName);
if (result != S_OK) {
displayModeName = (char *)malloc(32);
snprintf(displayModeName, 32, "[index %d]", g_config.m_displayModeIndex);
}
// Check display mode is supported with given options
result = g_deckLinkInput->DoesSupportVideoMode(displayMode->GetDisplayMode(), g_config.m_pixelFormat, bmdVideoInputFlagDefault, &displayModeSupported, NULL);
if (result != S_OK)
goto bail;
if (displayModeSupported == bmdDisplayModeNotSupported)
{
fprintf(stderr, "The display mode %s is not supported with the selected pixel format\n", displayModeName);
goto bail;
}
if (g_config.m_inputFlags & bmdVideoInputDualStream3D)
{
if (!(displayMode->GetFlags() & bmdDisplayModeSupports3D))
{
fprintf(stderr, "The display mode %s is not supported with 3D\n", displayModeName);
goto bail;
}
}
// Print the selected configuration
g_config.DisplayConfiguration();
// Configure the capture callback
delegate = new DeckLinkCaptureDelegate();
g_deckLinkInput->SetCallback(delegate);
// Open output files
// if (g_config.m_videoOutputFile != NULL)
// {
// g_videoOutputFile = open(g_config.m_videoOutputFile, O_WRONLY|O_CREAT|O_TRUNC, 0664);
// if (g_videoOutputFile < 0)
// {
// fprintf(stderr, "Could not open video output file \"%s\"\n", g_config.m_videoOutputFile);
// goto bail;
// }
// }
//
// if (g_config.m_audioOutputFile != NULL)
// {
// g_audioOutputFile = open(g_config.m_audioOutputFile, O_WRONLY|O_CREAT|O_TRUNC, 0664);
// if (g_audioOutputFile < 0)
// {
// fprintf(stderr, "Could not open audio output file \"%s\"\n", g_config.m_audioOutputFile);
// goto bail;
// }
// }
// Block main thread until signal occurs
while (!g_do_exit)
{
// Start capturing
result = g_deckLinkInput->EnableVideoInput(displayMode->GetDisplayMode(), g_config.m_pixelFormat, g_config.m_inputFlags);
if (result != S_OK)
{
fprintf(stderr, "Failed to enable video input. Is another application using the card?\n");
goto bail;
}
result = g_deckLinkInput->EnableAudioInput(bmdAudioSampleRate48kHz, g_config.m_audioSampleDepth, g_config.m_audioChannels);
if (result != S_OK)
goto bail;
result = g_deckLinkInput->StartStreams();
if (result != S_OK)
goto bail;
// All Okay.
exitStatus = 0;
pthread_mutex_lock(&g_sleepMutex);
pthread_cond_wait(&g_sleepCond, &g_sleepMutex);
pthread_mutex_unlock(&g_sleepMutex);
fprintf(stderr, "Stopping Capture\n");
g_deckLinkInput->StopStreams();
g_deckLinkInput->DisableAudioInput();
g_deckLinkInput->DisableVideoInput();
}
bail:
if (g_videoOutputFile != 0)
close(g_videoOutputFile);
if (g_audioOutputFile != 0)
close(g_audioOutputFile);
if (displayModeName != NULL)
free(displayModeName);
if (displayMode != NULL)
displayMode->Release();
if (displayModeIterator != NULL)
displayModeIterator->Release();
if (g_deckLinkInput != NULL)
{
g_deckLinkInput->Release();
g_deckLinkInput = NULL;
}
if (deckLinkAttributes != NULL)
deckLinkAttributes->Release();
if (deckLink != NULL)
deckLink->Release();
if (deckLinkIterator != NULL)
deckLinkIterator->Release();
close(g_video_sock);
close(g_audio_sock);
return exitStatus;
}
