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;
}
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;
}
/* lookup the field dominance corresponding to this BMDDisplayMode */
static RawFrame::FieldDominance find_dominance(BMDDisplayMode mode,
IDeckLinkDisplayModeIterator *iterator) {
IDeckLinkDisplayMode *imode;
if (iterator->Next(&imode) != S_OK) {
throw std::runtime_error("DeckLink: failed to iterate display modes");
}
while (imode) {
BMDFieldDominance fd = imode->GetFieldDominance( );
BMDDisplayMode thismode = imode->GetDisplayMode( );
imode->Release( );
if (thismode == mode) {
switch (fd) {
case bmdLowerFieldFirst:
return RawFrame::BOTTOM_FIELD_FIRST;
case bmdUpperFieldFirst:
return RawFrame::TOP_FIELD_FIRST;
case bmdProgressiveFrame:
case bmdProgressiveSegmentedFrame:
return RawFrame::PROGRESSIVE;
default:
return RawFrame::UNKNOWN;
}
}
if (iterator->Next(&imode) != S_OK) {
throw std::runtime_error("failed to iterate display modes");
}
}
/* no modes matched so we don't know dominance */
return RawFrame::UNKNOWN;
}
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;
}
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);
}
//----------
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;
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;
}
void Player::StartRunning(int videomode)
{
IDeckLinkDisplayMode *videoDisplayMode = NULL;
unsigned long audioSamplesPerFrame;
// Get the display mode for 1080i 59.95
videoDisplayMode = GetDisplayModeByIndex(videomode);
if (!videoDisplayMode)
return;
m_frameWidth = videoDisplayMode->GetWidth();
m_frameHeight = videoDisplayMode->GetHeight();
videoDisplayMode->GetFrameRate(&m_frameDuration, &m_frameTimescale);
// Set the video output mode
if (m_deckLinkOutput->EnableVideoOutput(videoDisplayMode->GetDisplayMode(),
bmdVideoOutputFlagDefault) !=
S_OK) {
fprintf(stderr, "Failed to enable video output\n");
return;
}
// Set the audio output mode
if (m_deckLinkOutput->EnableAudioOutput(bmdAudioSampleRate48kHz,
m_audioSampleDepth,
audio_st->codec->channels,
bmdAudioOutputStreamTimestamped) !=
S_OK) {
fprintf(stderr, "Failed to enable audio output\n");
return;
}
for (unsigned i = 0; i < 10; i++)
ScheduleNextFrame(true);
// Begin audio preroll. This will begin calling our audio callback, which will start the DeckLink output stream.
// m_audioBufferOffset = 0;
if (m_deckLinkOutput->BeginAudioPreroll() != S_OK) {
fprintf(stderr, "Failed to begin audio preroll\n");
return;
}
m_running = true;
return;
}
bool start( unsigned preroll )
{
m_displayMode = getDisplayMode();
if ( !m_displayMode )
{
mlt_log_error( &m_consumer, "Profile is not compatible with decklink.\n" );
return false;
}
// Set the video output mode
if ( S_OK != m_deckLinkOutput->EnableVideoOutput( m_displayMode->GetDisplayMode(), bmdVideoOutputFlagDefault) )
{
mlt_log_error( &m_consumer, "Failed to enable video output\n" );
return false;
}
// Set the audio output mode
m_channels = 2;
if ( S_OK != m_deckLinkOutput->EnableAudioOutput( bmdAudioSampleRate48kHz, bmdAudioSampleType16bitInteger,
m_channels, bmdAudioOutputStreamContinuous ) )
{
mlt_log_error( &m_consumer, "Failed to enable audio output\n" );
stop();
return false;
}
m_fifo = sample_fifo_init();
// Preroll
m_isPrerolling = true;
m_prerollCounter = 0;
m_preroll = preroll < PREROLL_MINIMUM ? PREROLL_MINIMUM : preroll;
m_count = 0;
m_deckLinkOutput->BeginAudioPreroll();
return true;
}
void BMDOutputDelegate::StartRunning ()
{
IDeckLinkDisplayMode* videoDisplayMode = NULL;
// Get the display mode for 1080i 59.95 - mode 6
// Changed to NTSC 23.98 - JB 20110215
videoDisplayMode = GetDisplayModeByIndex(1);
if (!videoDisplayMode)
return;
m_frameWidth = videoDisplayMode->GetWidth();
m_frameHeight = videoDisplayMode->GetHeight();
videoDisplayMode->GetFrameRate(&m_frameDuration, &m_frameTimescale);
// Calculate the number of frames per second, rounded up to the nearest integer. For example, for NTSC (29.97 FPS), framesPerSecond == 30.
m_framesPerSecond = (unsigned long)((m_frameTimescale + (m_frameDuration-1)) / m_frameDuration);
QImage image(m_frameWidth,m_frameHeight, QImage::Format_ARGB32);
image.fill(Qt::green);
//m_frame = VideoFramePtr(new VideoFrame(image, 1000/30));
HRESULT res;
// Set the video output mode
if (m_deckLinkOutput->EnableVideoOutput(videoDisplayMode->GetDisplayMode(), bmdVideoOutputFlagDefault) != S_OK)
{
//fprintf(stderr, "Failed to enable video output\n");
qDebug() << "BMDOutputDelegate::StartRunning(): Failed to EnableVideoOutput()";
goto bail;
}
res = m_deckLinkOutput->CreateVideoFrame(
m_frameWidth,
m_frameHeight,
m_frameWidth * 4,
bmdFormat8BitBGRA,
bmdFrameFlagDefault,
&m_rgbFrame);
if(res != S_OK)
{
qDebug() << "BMDOutputDelegate::StartRunning: Error creating RGB frame, res:"<<res;
goto bail;
}
res = m_deckLinkOutput->CreateVideoFrame(
m_frameWidth,
m_frameHeight,
m_frameWidth * 2,
bmdFormat8BitYUV,
bmdFrameFlagDefault,
&m_yuvFrame);
if(res != S_OK)
{
qDebug() << "BMDOutputDelegate::StartRunning: Error creating YUV frame, res:"<<res;
goto bail;
}
// // Generate a frame of black
// if (m_deckLinkOutput->CreateVideoFrame(m_frameWidth, m_frameHeight, m_frameWidth*2, bmdFormat8BitYUV, bmdFrameFlagDefault, &m_videoFrameBlack) != S_OK)
// {
// fprintf(stderr, "Failed to create video frame\n");
// goto bail;
// }
// FillBlack(m_videoFrameBlack);
//
// // Generate a frame of colour bars
// if (m_deckLinkOutput->CreateVideoFrame(m_frameWidth, m_frameHeight, m_frameWidth*2, bmdFormat8BitYUV, bmdFrameFlagDefault, &m_videoFrameBars) != S_OK)
// {
// fprintf(stderr, "Failed to create video frame\n");
// goto bail;
// }
// FillColourBars(m_videoFrameBars);
// Begin video preroll by scheduling a second of frames in hardware
m_totalFramesScheduled = 0;
for (unsigned i = 0; i < m_framesPerSecond; i++)
{
PrepareFrame();
ScheduleNextFrame(true);
}
// Args: startTime, timeScale, playback speed (1.0 = normal)
m_deckLinkOutput->StartScheduledPlayback(0, 100, 1.0);
m_running = true;
return;
bail:
// *** Error-handling code. Cleanup any resources that were allocated. *** //
StopRunning();
}
int ff_decklink_set_format(AVFormatContext *avctx,
int width, int height,
int tb_num, int tb_den,
enum AVFieldOrder field_order,
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;
av_log(avctx, AV_LOG_DEBUG, "Trying to find mode for frame size %dx%d, frame timing %d/%d, field order %d, direction %d, mode number %d, format code %s\n",
width, height, tb_num, tb_den, field_order, direction, num, (cctx->format_code) ? cctx->format_code : "(unset)");
if (ctx->duplex_mode) {
DECKLINK_BOOL duplex_supported = false;
if (ctx->attr->GetFlag(BMDDeckLinkSupportsDuplexModeConfiguration, &duplex_supported) != S_OK)
duplex_supported = false;
if (duplex_supported) {
res = ctx->cfg->SetInt(bmdDeckLinkConfigDuplexMode, ctx->duplex_mode == 2 ? bmdDuplexModeFull : bmdDuplexModeHalf);
if (res != S_OK)
av_log(avctx, AV_LOG_WARNING, "Setting duplex mode failed.\n");
else
av_log(avctx, AV_LOG_VERBOSE, "Successfully set duplex mode to %s duplex.\n", ctx->duplex_mode == 2 ? "full" : "half");
} else {
av_log(avctx, AV_LOG_WARNING, "Unable to set duplex mode, because it is not supported.\n");
}
}
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);
}
char format_buf[] = " ";
if (cctx->format_code)
memcpy(format_buf, cctx->format_code, FFMIN(strlen(cctx->format_code), sizeof(format_buf)));
BMDDisplayMode target_mode = (BMDDisplayMode)AV_RB32(format_buf);
AVRational target_tb = av_make_q(tb_num, tb_den);
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();
BMDDisplayMode bmd_mode = mode->GetDisplayMode();
BMDFieldDominance bmd_field_dominance = mode->GetFieldDominance();
mode->GetFrameRate(&bmd_tb_num, &bmd_tb_den);
AVRational mode_tb = av_make_q(bmd_tb_num, bmd_tb_den);
if ((bmd_width == width &&
bmd_height == height &&
!av_cmp_q(mode_tb, target_tb) &&
field_order_eq(field_order, bmd_field_dominance))
|| i == num
|| target_mode == bmd_mode) {
ctx->bmd_mode = bmd_mode;
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 = bmd_field_dominance;
av_log(avctx, AV_LOG_INFO, "Found Decklink mode %d x %d with rate %.2f%s\n",
bmd_width, bmd_height, 1/av_q2d(mode_tb),
(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;
}
void SignalGenerator::startRunning()
{
IDeckLinkDisplayMode* videoDisplayMode = NULL;
BMDVideoOutputFlags videoOutputFlags = 0;
QVariant v;
// Determine the audio and video properties for the output stream
v = ui->outputSignalPopup->itemData(ui->outputSignalPopup->currentIndex());
outputSignal = (OutputSignal)v.value<int>();
v = ui->audioChannelPopup->itemData(ui->audioChannelPopup->currentIndex());
audioChannelCount = v.value<int>();
v = ui->audioSampleDepthPopup->itemData(ui->audioSampleDepthPopup->currentIndex());
audioSampleDepth = v.value<int>();
audioSampleRate = bmdAudioSampleRate48kHz;
//
// - Extract the IDeckLinkDisplayMode from the display mode popup menu (stashed in the item's tag)
v = ui->videoFormatPopup->itemData(ui->videoFormatPopup->currentIndex());
videoDisplayMode = (IDeckLinkDisplayMode *)v.value<void*>();
frameWidth = videoDisplayMode->GetWidth();
frameHeight = videoDisplayMode->GetHeight();
videoDisplayMode->GetFrameRate(&frameDuration, &frameTimescale);
// Calculate the number of frames per second, rounded up to the nearest integer. For example, for NTSC (29.97 FPS), framesPerSecond == 30.
framesPerSecond = (frameTimescale + (frameDuration-1)) / frameDuration;
if (videoDisplayMode->GetDisplayMode() == bmdModeNTSC ||
videoDisplayMode->GetDisplayMode() == bmdModeNTSC2398 ||
videoDisplayMode->GetDisplayMode() == bmdModePAL)
{
timeCodeFormat = bmdTimecodeVITC;
videoOutputFlags |= bmdVideoOutputVITC;
}
else
{
timeCodeFormat = bmdTimecodeRP188Any;
videoOutputFlags |= bmdVideoOutputRP188;
}
if (timeCode)
delete timeCode;
timeCode = new Timecode(framesPerSecond);
// Set the video output mode
if (deckLinkOutput->EnableVideoOutput(videoDisplayMode->GetDisplayMode(), videoOutputFlags) != S_OK)
goto bail;
// Set the audio output mode
if (deckLinkOutput->EnableAudioOutput(bmdAudioSampleRate48kHz, audioSampleDepth, audioChannelCount, bmdAudioOutputStreamTimestamped) != S_OK)
goto bail;
// Generate one second of audio tone
audioSamplesPerFrame = ((audioSampleRate * frameDuration) / frameTimescale);
audioBufferSampleLength = (framesPerSecond * audioSampleRate * frameDuration) / frameTimescale;
audioBuffer = malloc(audioBufferSampleLength * audioChannelCount * (audioSampleDepth / 8));
if (audioBuffer == NULL)
goto bail;
FillSine(audioBuffer, audioBufferSampleLength, audioChannelCount, audioSampleDepth);
// Generate a frame of black
if (deckLinkOutput->CreateVideoFrame(frameWidth, frameHeight, frameWidth*2, bmdFormat8BitYUV, bmdFrameFlagDefault, &videoFrameBlack) != S_OK)
goto bail;
FillBlack(videoFrameBlack);
// Generate a frame of colour bars
if (deckLinkOutput->CreateVideoFrame(frameWidth, frameHeight, frameWidth*2, bmdFormat8BitYUV, bmdFrameFlagDefault, &videoFrameBars) != S_OK)
goto bail;
FillColourBars(videoFrameBars);
// Begin video preroll by scheduling a second of frames in hardware
totalFramesScheduled = 0;
for (unsigned int i = 0; i < framesPerSecond; i++)
scheduleNextFrame(true);
// Begin audio preroll. This will begin calling our audio callback, which will start the DeckLink output stream.
totalAudioSecondsScheduled = 0;
if (deckLinkOutput->BeginAudioPreroll() != S_OK)
goto bail;
// Success; update the UI
running = true;
ui->startButton->setText("Stop");
// Disable the user interface while running (prevent the user from making changes to the output signal)
enableInterface(false);
return;
bail:
QMessageBox::critical(this, "Failed to start output", "Failed to start output");
// *** Error-handling code. Cleanup any resources that were allocated. *** //
stopRunning();
}
int
main (int argc, char *argv[])
{
IDeckLinkIterator *deckLinkIterator = CreateDeckLinkIteratorInstance ();
DeckLinkCaptureDelegate *delegate;
IDeckLinkDisplayMode *displayMode;
BMDVideoInputFlags inputFlags = 0;
BMDDisplayMode selectedDisplayMode = bmdModeNTSC;
BMDPixelFormat pixelFormat = bmdFormat8BitYUV;
int displayModeCount = 0;
int exitStatus = 1;
int ch;
bool foundDisplayMode = false;
HRESULT result;
pthread_mutex_init (&sleepMutex, NULL);
pthread_cond_init (&sleepCond, NULL);
if (!deckLinkIterator) {
fprintf (stderr,
"This application requires the DeckLink drivers installed.\n");
goto bail;
}
/* Connect to the first DeckLink instance */
result = deckLinkIterator->Next (&deckLink);
if (result != S_OK) {
fprintf (stderr, "No DeckLink PCI cards found.\n");
goto bail;
}
if (deckLink->QueryInterface (IID_IDeckLinkInput,
(void **) &deckLinkInput) != S_OK)
goto bail;
delegate = new DeckLinkCaptureDelegate ();
deckLinkInput->SetCallback (delegate);
// Obtain an IDeckLinkDisplayModeIterator to enumerate the display modes supported on output
result = deckLinkInput->GetDisplayModeIterator (&displayModeIterator);
if (result != S_OK) {
fprintf (stderr,
"Could not obtain the video output display mode iterator - result = %08x\n",
result);
goto bail;
}
// Parse command line options
while ((ch = getopt (argc, argv, "?h3c:s:f:a:m:n:p:t:")) != -1) {
switch (ch) {
case 'm':
g_videoModeIndex = atoi (optarg);
break;
case 'c':
g_audioChannels = atoi (optarg);
if (g_audioChannels != 2 &&
g_audioChannels != 8 && g_audioChannels != 16) {
fprintf (stderr,
"Invalid argument: Audio Channels must be either 2, 8 or 16\n");
goto bail;
}
break;
case 's':
g_audioSampleDepth = atoi (optarg);
if (g_audioSampleDepth != 16 && g_audioSampleDepth != 32) {
fprintf (stderr,
"Invalid argument: Audio Sample Depth must be either 16 bits or 32 bits\n");
goto bail;
}
break;
case 'f':
g_videoOutputFile = optarg;
break;
case 'a':
g_audioOutputFile = optarg;
break;
case 'n':
g_maxFrames = atoi (optarg);
break;
case '3':
inputFlags |= bmdVideoInputDualStream3D;
break;
case 'p':
switch (atoi (optarg)) {
case 0:
pixelFormat = bmdFormat8BitYUV;
break;
case 1:
pixelFormat = bmdFormat10BitYUV;
break;
case 2:
pixelFormat = bmdFormat10BitRGB;
break;
default:
fprintf (stderr, "Invalid argument: Pixel format %d is not valid",
atoi (optarg));
goto bail;
}
break;
case 't':
if (!strcmp (optarg, "rp188"))
g_timecodeFormat = bmdTimecodeRP188;
else if (!strcmp (optarg, "vitc"))
g_timecodeFormat = bmdTimecodeVITC;
else if (!strcmp (optarg, "serial"))
g_timecodeFormat = bmdTimecodeSerial;
else {
fprintf (stderr,
"Invalid argument: Timecode format \"%s\" is invalid\n", optarg);
goto bail;
}
break;
case '?':
case 'h':
usage (0);
}
}
if (g_videoModeIndex < 0) {
fprintf (stderr, "No video mode specified\n");
usage (0);
}
if (g_videoOutputFile != NULL) {
videoOutputFile =
open (g_videoOutputFile, O_WRONLY | O_CREAT | O_TRUNC, 0664);
if (videoOutputFile < 0) {
fprintf (stderr, "Could not open video output file \"%s\"\n",
g_videoOutputFile);
goto bail;
}
}
if (g_audioOutputFile != NULL) {
audioOutputFile =
open (g_audioOutputFile, O_WRONLY | O_CREAT | O_TRUNC, 0664);
if (audioOutputFile < 0) {
fprintf (stderr, "Could not open audio output file \"%s\"\n",
g_audioOutputFile);
goto bail;
}
}
while (displayModeIterator->Next (&displayMode) == S_OK) {
if (g_videoModeIndex == displayModeCount) {
BMDDisplayModeSupport result;
const char *displayModeName;
foundDisplayMode = true;
displayMode->GetName (&displayModeName);
selectedDisplayMode = displayMode->GetDisplayMode ();
deckLinkInput->DoesSupportVideoMode (selectedDisplayMode, pixelFormat,
bmdVideoInputFlagDefault, &result, NULL);
if (result == bmdDisplayModeNotSupported) {
fprintf (stderr,
"The display mode %s is not supported with the selected pixel format\n",
displayModeName);
goto bail;
}
if (inputFlags & bmdVideoInputDualStream3D) {
if (!(displayMode->GetFlags () & bmdDisplayModeSupports3D)) {
fprintf (stderr, "The display mode %s is not supported with 3D\n",
displayModeName);
goto bail;
}
}
break;
}
displayModeCount++;
displayMode->Release ();
}
if (!foundDisplayMode) {
fprintf (stderr, "Invalid mode %d specified\n", g_videoModeIndex);
goto bail;
}
result =
deckLinkInput->EnableVideoInput (selectedDisplayMode, pixelFormat,
inputFlags);
if (result != S_OK) {
fprintf (stderr,
"Failed to enable video input. Is another application using the card?\n");
goto bail;
}
result =
deckLinkInput->EnableAudioInput (bmdAudioSampleRate48kHz,
g_audioSampleDepth, g_audioChannels);
if (result != S_OK) {
goto bail;
}
result = deckLinkInput->StartStreams ();
if (result != S_OK) {
goto bail;
}
// All Okay.
exitStatus = 0;
// Block main thread until signal occurs
pthread_mutex_lock (&sleepMutex);
pthread_cond_wait (&sleepCond, &sleepMutex);
pthread_mutex_unlock (&sleepMutex);
fprintf (stderr, "Stopping Capture\n");
bail:
if (videoOutputFile)
close (videoOutputFile);
if (audioOutputFile)
close (audioOutputFile);
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 ();
return exitStatus;
}
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();
}
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;
}
/**
* process the arugments
* return negative value of failed
*/
int Window::processArguments(int argc, char* argv[]){
IDeckLinkAttributes *deckLinkAttributes = NULL;
DeckLinkCaptureDelegate *delegate;
IDeckLinkDisplayMode *displayMode;
BMDVideoInputFlags inputFlags = 0;
BMDDisplayMode selectedDisplayMode = bmdModeNTSC;
BMDPixelFormat pixelFormat = bmdFormat8BitYUV;
int displayModeCount = 0;
int exitStatus = 1;
int ch;
bool foundDisplayMode = false;
HRESULT result;
int dnum = 0;
IDeckLink *tempLink = NULL;
int found = 0;
bool supported = 0;
int64_t ports;
int itemCount;
int vinput = 0;
int64_t vport = 0;
IDeckLinkConfiguration *deckLinkConfiguration = NULL;
bool flickerremoval = true;
bool pnotpsf = true;
// Parse command line options
while ((ch = getopt(argc, argv, "?h3c:d:s:f:a:m:n:p:t:u::vi:jy")) != -1)
{
switch (ch)
{
case 'i':
vinput = atoi(optarg);
break;
case 'd':
card = atoi(optarg);
break;
case 'm':
g_videoModeIndex = atoi(optarg);
break;
case 'n':
g_maxFrames = atoi(optarg);
break;
case '3':
inputFlags |= bmdVideoInputDualStream3D;
break;
case 'p':
switch(atoi(optarg))
{
case 0: pixelFormat = bmdFormat8BitYUV; break;
case 1: pixelFormat = bmdFormat10BitYUV; break;
case 2: pixelFormat = bmdFormat10BitRGB; break;
default:
fprintf(stderr, "Invalid argument: Pixel format %d is not valid", atoi(optarg));
exit(1);
}
break;
case 't':
if (!strcmp(optarg, "rp188"))
g_timecodeFormat = bmdTimecodeRP188Any;
else if (!strcmp(optarg, "vitc"))
g_timecodeFormat = bmdTimecodeVITC;
else if (!strcmp(optarg, "serial"))
g_timecodeFormat = bmdTimecodeSerial;
else
{
fprintf(stderr, "Invalid argument: Timecode format \"%s\" is invalid\n", optarg);
exit(1);
}
break;
case '?':
case 'h':
usage();
}
}
if (!deckLinkIterator)
{
fprintf(stderr, "This application requires the DeckLink drivers installed.\n");
return -1;
}
/* Connect to the first DeckLink instance */
while (deckLinkIterator->Next(&tempLink) == S_OK)
{
if (card != dnum) {
dnum++;
// Release the IDeckLink instance when we've finished with it to prevent leaks
tempLink->Release();
continue;
}
else {
deckLink = tempLink;
found = 1;
}
dnum++;
}
if (! found ) {
fprintf(stderr, "No DeckLink PCI cards found.\n");
return -1;
}
if (deckLink->QueryInterface(IID_IDeckLinkInput, (void**)&deckLinkInput) != S_OK)
return -1;
// Query the DeckLink for its attributes interface
result = deckLink->QueryInterface(IID_IDeckLinkAttributes, (void**)&deckLinkAttributes);
if (result != S_OK)
{
fprintf(stderr, "Could not obtain the IDeckLinkAttributes interface - result = %08x\n", result);
}
result = deckLinkAttributes->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &supported);
if (result == S_OK)
{
fprintf(stderr, " %-40s %s\n", "Input mode detection supported ?", (supported == true) ? "Yes" : "No");
}
else
{
fprintf(stderr, "Could not query the input mode detection attribute- result = %08x\n", result);
}
fprintf(stderr, "Supported video input connections (-i [input #]:\n ");
itemCount = 0;
result = deckLinkAttributes->GetInt(BMDDeckLinkVideoInputConnections, &ports);
if (result == S_OK)
{
if (ports & bmdVideoConnectionSDI)
{
fprintf(stderr, "%d: SDI, ", bmdVideoConnectionSDI);
itemCount++;
}
if (ports & bmdVideoConnectionHDMI)
{
fprintf(stderr, "%d: HDMI, ", bmdVideoConnectionHDMI);
itemCount++;
}
if (ports & bmdVideoConnectionOpticalSDI)
{
fprintf(stderr, "%d: Optical SDI, ", bmdVideoConnectionOpticalSDI);
itemCount++;
}
if (ports & bmdVideoConnectionComponent)
{
fprintf(stderr, "%d: Component, ", bmdVideoConnectionComponent);
itemCount++;
}
if (ports & bmdVideoConnectionComposite)
{
fprintf(stderr, "%d: Composite, ", bmdVideoConnectionComposite);
itemCount++;
}
if (ports & bmdVideoConnectionSVideo)
{
fprintf(stderr, "%d: S-Video, ", bmdVideoConnectionSVideo);
itemCount++;
}
}
fprintf(stderr, "\n");
//glWidget->initShaderProgram();
delegate = new DeckLinkCaptureDelegate(glWidget);
connect(delegate, SIGNAL(updateGLSignal()), glWidget, SLOT(updateGLSlot()));
deckLinkInput->SetCallback(delegate);
// Obtain an IDeckLinkDisplayModeIterator to enumerate the display modes supported on output
result = deckLinkInput->GetDisplayModeIterator(&displayModeIterator);
if (result != S_OK)
{
fprintf(stderr, "Could not obtain the video output display mode iterator - result = %08x\n", result);
return -1;
}
if (g_videoModeIndex < 0)
{
fprintf(stderr, "No video mode specified\n");
usage();
return -1;
}
while (displayModeIterator->Next(&displayMode) == S_OK)
{
if (g_videoModeIndex == displayModeCount)
{
BMDDisplayModeSupport result;
const char *displayModeName;
foundDisplayMode = true;
displayMode->GetName(&displayModeName);
selectedDisplayMode = displayMode->GetDisplayMode();
deckLinkInput->DoesSupportVideoMode(selectedDisplayMode, pixelFormat, bmdVideoInputFlagDefault, &result, NULL);
if (result == bmdDisplayModeNotSupported)
{
fprintf(stderr, "The display mode %s is not supported with the selected pixel format\n", displayModeName);
return -1;
}
if (inputFlags & bmdVideoInputDualStream3D)
{
if (!(displayMode->GetFlags() & bmdDisplayModeSupports3D))
{
fprintf(stderr, "The display mode %s is not supported with 3D\n", displayModeName);
return -1;
}
}
fprintf(stderr, "Selecting mode: %s\n", displayModeName);
break;
}
displayModeCount++;
displayMode->Release();
}
if (!foundDisplayMode)
{
fprintf(stderr, "Invalid mode %d specified\n", g_videoModeIndex);
return -1;
}
// Query the DeckLink for its configuration interface
result = deckLinkInput->QueryInterface(IID_IDeckLinkConfiguration, (void**)&deckLinkConfiguration);
if (result != S_OK)
{
fprintf(stderr, "Could not obtain the IDeckLinkConfiguration interface: %08x\n", result);
}
BMDVideoConnection conn;
switch (vinput) {
case 0:
conn = bmdVideoConnectionSDI;
break;
case 1:
conn = bmdVideoConnectionHDMI;
break;
case 2:
conn = bmdVideoConnectionComponent;
break;
case 3:
conn = bmdVideoConnectionComposite;
break;
case 4:
conn = bmdVideoConnectionSVideo;
break;
case 5:
conn = bmdVideoConnectionOpticalSDI;
break;
default:
break;
}
conn = vinput;
// Set the input desired
result = deckLinkConfiguration->SetInt(bmdDeckLinkConfigVideoInputConnection, conn);
if(result != S_OK) {
fprintf(stderr, "Cannot set the input to [%d]\n", conn);
return -1;
}
// check input
result = deckLinkConfiguration->GetInt(bmdDeckLinkConfigVideoInputConnection, &vport);
if (vport == bmdVideoConnectionSDI)
fprintf(stderr, "Before Input configured for SDI\n");
if (vport == bmdVideoConnectionHDMI)
fprintf(stderr, "Before Input configured for HDMI\n");
if (deckLinkConfiguration->SetFlag(bmdDeckLinkConfigFieldFlickerRemoval, flickerremoval) == S_OK) {
fprintf(stderr, "Flicker removal set : %d\n", flickerremoval);
}
else {
fprintf(stderr, "Flicker removal NOT set\n");
}
if (deckLinkConfiguration->SetFlag(bmdDeckLinkConfigUse1080pNotPsF, pnotpsf) == S_OK) {
fprintf(stderr, "bmdDeckLinkConfigUse1080pNotPsF: %d\n", pnotpsf);
}
else {
fprintf(stderr, "bmdDeckLinkConfigUse1080pNotPsF NOT set\n");
}
//if (deckLinkConfiguration->SetFlag(bmdDeckLinkConfigVideoInputConnection, conn) == S_OK) {
//fprintf(stderr, "Input set to: %d\n", vinput);
//}
result = deckLinkConfiguration->GetInt(bmdDeckLinkConfigVideoInputConnection, &vport);
if (vport == bmdVideoConnectionSDI)
fprintf(stderr, "After Input configured for SDI\n");
if (vport == bmdVideoConnectionHDMI)
fprintf(stderr, "After Input configured for HDMI\n");
result = deckLinkInput->EnableVideoInput(selectedDisplayMode, pixelFormat, inputFlags);
if(result != S_OK)
{
fprintf(stderr, "Failed to enable video input. Is another application using the card?\n");
return -1;
}
displayWidth = displayMode->GetWidth();
displayHeight = displayMode->GetHeight();
displayMode->GetFrameRate(&frameRateDuration, &frameRateScale);
displayFPS = (double)frameRateScale / (double)frameRateDuration;
//set to delegate
delegate->setWidth(displayWidth);
delegate->setHeight(displayHeight);
delegate->setFPS(displayFPS);
delegate->setFrameRateDuration(frameRateDuration);
delegate->setFrameRateScale(frameRateScale);
//set texture width and height
glWidget->setTextureWidth(displayWidth);
glWidget->setTextureHeight(displayHeight);
glWidget->initBuffer();
fprintf(stderr, "GetFrameRate: %10ld %10ld --> fps %g\n", (long)frameRateScale, (long)frameRateDuration, displayFPS);
result = deckLinkInput->StartStreams();
if(result != S_OK){
fprintf(stderr, "Cannot start streams...\n");
return -1;
}
fprintf(stderr, "Finish procesing arguments \n");
}
void CSignalGeneratorDlg::StartRunning ()
{
IDeckLinkDisplayMode* videoDisplayMode = NULL;
BMDVideoOutputFlags videoOutputFlags = bmdVideoOutputFlagDefault;
int curSelection;
CString videoFormatName;
curSelection = m_videoFormatCombo.GetCurSel();
m_videoFormatCombo.GetLBText(curSelection, videoFormatName);
if (videoFormatName.Find(_T(" 3D"), 0) != -1)
videoOutputFlags = bmdVideoOutputDualStream3D;
// Determine the audio and video properties for the output stream
m_outputSignal = (OutputSignal)m_outputSignalCombo.GetCurSel();
m_audioChannelCount = m_audioChannelCombo.GetItemData(m_audioChannelCombo.GetCurSel());
m_audioSampleDepth = (BMDAudioSampleType)m_audioSampleDepthCombo.GetItemData(m_audioSampleDepthCombo.GetCurSel());
m_audioSampleRate = bmdAudioSampleRate48kHz;
//
// - Extract the IDeckLinkDisplayMode from the display mode popup menu (stashed in the item's tag)
videoDisplayMode = (IDeckLinkDisplayMode*)m_videoFormatCombo.GetItemDataPtr(m_videoFormatCombo.GetCurSel());
m_frameWidth = videoDisplayMode->GetWidth();
m_frameHeight = videoDisplayMode->GetHeight();
videoDisplayMode->GetFrameRate(&m_frameDuration, &m_frameTimescale);
// Calculate the number of frames per second, rounded up to the nearest integer. For example, for NTSC (29.97 FPS), framesPerSecond == 30.
m_framesPerSecond = (unsigned long)((m_frameTimescale + (m_frameDuration-1)) / m_frameDuration);
// Set the video output mode
if (m_deckLinkOutput->EnableVideoOutput(videoDisplayMode->GetDisplayMode(), videoOutputFlags) != S_OK)
goto bail;
// Set the audio output mode
if (m_deckLinkOutput->EnableAudioOutput(bmdAudioSampleRate48kHz, m_audioSampleDepth, m_audioChannelCount, bmdAudioOutputStreamTimestamped) != S_OK)
goto bail;
// Generate one second of audio tone
m_audioSamplesPerFrame = (unsigned long)((m_audioSampleRate * m_frameDuration) / m_frameTimescale);
m_audioBufferSampleLength = (unsigned long)((m_framesPerSecond * m_audioSampleRate * m_frameDuration) / m_frameTimescale);
m_audioBuffer = HeapAlloc(GetProcessHeap(), 0, (m_audioBufferSampleLength * m_audioChannelCount * (m_audioSampleDepth / 8)));
if (m_audioBuffer == NULL)
goto bail;
FillSine(m_audioBuffer, m_audioBufferSampleLength, m_audioChannelCount, m_audioSampleDepth);
// Generate a frame of black
m_videoFrameBlack = CreateBlackFrame();
if (! m_videoFrameBlack)
goto bail;
// Generate a frame of colour bars
m_videoFrameBars = CreateBarsFrame();
if (! m_videoFrameBars)
goto bail;
// Begin video preroll by scheduling a second of frames in hardware
m_totalFramesScheduled = 0;
for (unsigned i = 0; i < m_framesPerSecond; i++)
ScheduleNextFrame(true);
// Begin audio preroll. This will begin calling our audio callback, which will start the DeckLink output stream.
m_totalAudioSecondsScheduled = 0;
if (m_deckLinkOutput->BeginAudioPreroll() != S_OK)
goto bail;
// Success; update the UI
m_running = true;
m_startButton.SetWindowText(_T("Stop"));
// Disable the user interface while running (prevent the user from making changes to the output signal)
EnableInterface(FALSE);
return;
bail:
// *** Error-handling code. Cleanup any resources that were allocated. *** //
StopRunning();
}
// 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;
}
static int Open(vlc_object_t *p_this)
{
demux_t *demux = (demux_t*)p_this;
demux_sys_t *sys;
int ret = VLC_EGENERIC;
int card_index;
int physical_channels = 0;
int rate;
BMDVideoInputFlags flags = bmdVideoInputFlagDefault;
/* Only when selected */
if (*demux->psz_access == '\0')
return VLC_EGENERIC;
/* Set up demux */
demux->pf_demux = NULL;
demux->pf_control = Control;
demux->info.i_update = 0;
demux->info.i_title = 0;
demux->info.i_seekpoint = 0;
demux->p_sys = sys = (demux_sys_t*)calloc(1, sizeof(demux_sys_t));
if (!sys)
return VLC_ENOMEM;
vlc_mutex_init(&sys->pts_lock);
sys->tenbits = var_InheritBool(p_this, "decklink-tenbits");
IDeckLinkIterator *decklink_iterator = CreateDeckLinkIteratorInstance();
if (!decklink_iterator) {
msg_Err(demux, "DeckLink drivers not found.");
goto finish;
}
card_index = var_InheritInteger(demux, "decklink-card-index");
if (card_index < 0) {
msg_Err(demux, "Invalid card index %d", card_index);
goto finish;
}
for (int i = 0; i <= card_index; i++) {
if (sys->card)
sys->card->Release();
if (decklink_iterator->Next(&sys->card) != S_OK) {
msg_Err(demux, "DeckLink PCI card %d not found", card_index);
goto finish;
}
}
const char *model_name;
if (sys->card->GetModelName(&model_name) != S_OK)
model_name = "unknown";
msg_Dbg(demux, "Opened DeckLink PCI card %d (%s)", card_index, model_name);
if (sys->card->QueryInterface(IID_IDeckLinkInput, (void**)&sys->input) != S_OK) {
msg_Err(demux, "Card has no inputs");
goto finish;
}
/* Set up the video and audio sources. */
if (sys->card->QueryInterface(IID_IDeckLinkConfiguration, (void**)&sys->config) != S_OK) {
msg_Err(demux, "Failed to get configuration interface");
goto finish;
}
if (sys->card->QueryInterface(IID_IDeckLinkAttributes, (void**)&sys->attributes) != S_OK) {
msg_Err(demux, "Failed to get attributes interface");
goto finish;
}
if (GetVideoConn(demux) || GetAudioConn(demux))
goto finish;
BMDPixelFormat fmt;
fmt = sys->tenbits ? bmdFormat10BitYUV : bmdFormat8BitYUV;
if (sys->attributes->GetFlag(BMDDeckLinkSupportsInputFormatDetection, &sys->autodetect) != S_OK) {
msg_Err(demux, "Failed to query card attribute");
goto finish;
}
/* Get the list of display modes. */
IDeckLinkDisplayModeIterator *mode_it;
if (sys->input->GetDisplayModeIterator(&mode_it) != S_OK) {
msg_Err(demux, "Failed to enumerate display modes");
goto finish;
}
union {
BMDDisplayMode id;
char str[4];
} u;
u.id = 0;
char *mode;
mode = var_CreateGetNonEmptyString(demux, "decklink-mode");
if (mode)
sys->autodetect = false; // disable autodetection if mode was set
if (sys->autodetect) {
msg_Dbg(demux, "Card supports input format detection");
flags |= bmdVideoInputEnableFormatDetection;
/* Enable a random format, we will reconfigure on format detection */
u.id = htonl(bmdModeHD1080p2997);
} else {
if (!mode || strlen(mode) < 3 || strlen(mode) > 4) {
msg_Err(demux, "Invalid mode: \'%s\'", mode ? mode : "");
free(mode);
goto finish;
}
msg_Dbg(demux, "Looking for mode \'%s\'", mode);
memcpy(u.str, mode, 4);
if (u.str[3] == '\0')
u.str[3] = ' '; /* 'pal'\0 -> 'pal ' */
free(mode);
}
es_format_t video_fmt;
video_fmt.video.i_width = 0;
for (IDeckLinkDisplayMode *m;; m->Release()) {
if ((mode_it->Next(&m) != S_OK) || !m)
break;
const char *mode_name;
BMDTimeValue frame_duration, time_scale;
uint32_t field_flags;
const char *field = GetFieldDominance(m->GetFieldDominance(), &field_flags);
BMDDisplayMode id = ntohl(m->GetDisplayMode());
if (m->GetName(&mode_name) != S_OK)
mode_name = "unknown";
if (m->GetFrameRate(&frame_duration, &time_scale) != S_OK) {
time_scale = 0;
frame_duration = 1;
}
msg_Dbg(demux, "Found mode '%4.4s': %s (%dx%d, %.3f fps%s)",
(char*)&id, mode_name,
(int)m->GetWidth(), (int)m->GetHeight(),
double(time_scale) / frame_duration, field);
if (u.id == id) {
video_fmt = GetModeSettings(demux, m);
msg_Dbg(demux, "Using that mode");
}
}
mode_it->Release();
if (video_fmt.video.i_width == 0) {
msg_Err(demux, "Unknown video mode `%4.4s\' specified.", (char*)&u.id);
goto finish;
}
if (sys->input->EnableVideoInput(htonl(u.id), fmt, flags) != S_OK) {
msg_Err(demux, "Failed to enable video input");
goto finish;
}
/* Set up audio. */
sys->channels = var_InheritInteger(demux, "decklink-audio-channels");
switch (sys->channels) {
case 0:
break;
case 2:
physical_channels = AOUT_CHANS_STEREO;
break;
case 8:
physical_channels = AOUT_CHANS_7_1;
break;
//case 16:
default:
msg_Err(demux, "Invalid number of channels (%d), disabling audio", sys->channels);
sys->channels = 0;
}
rate = var_InheritInteger(demux, "decklink-audio-rate");
if (rate > 0 && sys->channels > 0) {
if (sys->input->EnableAudioInput(rate, bmdAudioSampleType16bitInteger, sys->channels) != S_OK) {
msg_Err(demux, "Failed to enable audio input");
goto finish;
}
}
sys->delegate = new DeckLinkCaptureDelegate(demux);
sys->input->SetCallback(sys->delegate);
if (sys->input->StartStreams() != S_OK) {
msg_Err(demux, "Could not start streaming from SDI card. This could be caused "
"by invalid video mode or flags, access denied, or card already in use.");
goto finish;
}
msg_Dbg(demux, "added new video es %4.4s %dx%d",
(char*)&video_fmt.i_codec, video_fmt.video.i_width, video_fmt.video.i_height);
sys->video_es = es_out_Add(demux->out, &video_fmt);
es_format_t audio_fmt;
es_format_Init(&audio_fmt, AUDIO_ES, VLC_CODEC_S16N);
audio_fmt.audio.i_channels = sys->channels;
audio_fmt.audio.i_physical_channels = physical_channels;
audio_fmt.audio.i_rate = rate;
audio_fmt.audio.i_bitspersample = 16;
audio_fmt.audio.i_blockalign = audio_fmt.audio.i_channels * audio_fmt.audio.i_bitspersample / 8;
audio_fmt.i_bitrate = audio_fmt.audio.i_channels * audio_fmt.audio.i_rate * audio_fmt.audio.i_bitspersample;
msg_Dbg(demux, "added new audio es %4.4s %dHz %dbpp %dch",
(char*)&audio_fmt.i_codec, audio_fmt.audio.i_rate, audio_fmt.audio.i_bitspersample, audio_fmt.audio.i_channels);
sys->audio_es = es_out_Add(demux->out, &audio_fmt);
ret = VLC_SUCCESS;
finish:
if (decklink_iterator)
decklink_iterator->Release();
if (ret != VLC_SUCCESS)
Close(p_this);
return ret;
}
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;
}
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 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;
}
int ff_decklink_set_format(AVFormatContext *avctx,
int width, int height,
int tb_num, int tb_den,
enum AVFieldOrder field_order,
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;
av_log(avctx, AV_LOG_DEBUG, "Trying to find mode for frame size %dx%d, frame timing %d/%d, field order %d, direction %d, mode number %d, format code %s\n",
width, height, tb_num, tb_den, field_order, direction, num, (cctx->format_code) ? cctx->format_code : "(unset)");
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);
}
char format_buf[] = " ";
if (cctx->format_code)
memcpy(format_buf, cctx->format_code, FFMIN(strlen(cctx->format_code), sizeof(format_buf)));
BMDDisplayMode target_mode = (BMDDisplayMode)AV_RB32(format_buf);
AVRational target_tb = av_make_q(tb_num, tb_den);
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();
BMDDisplayMode bmd_mode = mode->GetDisplayMode();
BMDFieldDominance bmd_field_dominance = mode->GetFieldDominance();
mode->GetFrameRate(&bmd_tb_num, &bmd_tb_den);
AVRational mode_tb = av_make_q(bmd_tb_num, bmd_tb_den);
if ((bmd_width == width &&
bmd_height == height &&
!av_cmp_q(mode_tb, target_tb) &&
field_order_eq(field_order, bmd_field_dominance))
|| i == num
|| target_mode == bmd_mode) {
ctx->bmd_mode = bmd_mode;
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 = bmd_field_dominance;
av_log(avctx, AV_LOG_INFO, "Found Decklink mode %d x %d with rate %.2f%s\n",
bmd_width, bmd_height, 1/av_q2d(mode_tb),
(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, (BMDPixelFormat) cctx->raw_format,
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;
}