C++ IDeckLinkDisplayMode类代码示例

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->url);
    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;
}

int
usage (int status)
{
  HRESULT result;
  IDeckLinkDisplayMode *displayMode;
  int displayModeCount = 0;

  fprintf (stderr,
      "Usage: Capture -m <mode id> [OPTIONS]\n" "\n" "    -m <mode id>:\n");

  while (displayModeIterator->Next (&displayMode) == S_OK) {
    char *displayModeString = NULL;

    result = displayMode->GetName ((const char **) &displayModeString);
    if (result == S_OK) {
      BMDTimeValue frameRateDuration, frameRateScale;
      displayMode->GetFrameRate (&frameRateDuration, &frameRateScale);

      fprintf (stderr, "        %2d:  %-20s \t %li x %li \t %g FPS\n",
          displayModeCount, displayModeString, displayMode->GetWidth (),
          displayMode->GetHeight (),
          (double) frameRateScale / (double) frameRateDuration);

      free (displayModeString);
      displayModeCount++;
    }
    // Release the IDeckLinkDisplayMode object to prevent a leak
    displayMode->Release ();
  }

  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"
      "    -f <filename>        Filename raw video will be written to\n"
      "    -a <filename>        Filename raw audio will be written to\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 -m2 -n 50 -f video.raw -a audio.raw\n"
      "    mplayer video.raw -demuxer rawvideo -rawvideo pal:uyvy -audiofile audio.raw -audio-demuxer 20 -rawaudio rate=48000\n");

  exit (status);
}

	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;
	}

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 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::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();
}

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();
}

// 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	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();
}

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"))
//.........这里部分代码省略.........

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,
//.........这里部分代码省略.........

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

//.........这里部分代码省略.........

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 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;
    }
//.........这里部分代码省略.........

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;
}