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BlackMagicCamera.cpp
947 lines (793 loc) · 31.7 KB
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BlackMagicCamera.cpp
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//
// BlackMagicCamera.cpp
// V0.3
//
// Created by Jens Heinen on 02.10.11.
// Copyright 2011 Lichtfaktor. All rights reserved.
//
//#include <iostream>
#include "BlackMagicCamera.h"
BlackMagicCamera::BlackMagicCamera()
: selectedDevice(NULL), deckLinkInput(NULL),
screenPreviewCallback(NULL), supportFormatDetection(false), currentlyCapturing(false)
{
currentlyCapturing = false;
mCurrentDeviceIndex =-1;
mInputMode=INPUTMODE_10YUV;
}
BlackMagicCamera::~BlackMagicCamera()
{
if (currentlyCapturing) stopCapture();
vector<IDeckLink*>::iterator it;
// Release screen preview
if (screenPreviewCallback != NULL)
{
screenPreviewCallback->Release();
screenPreviewCallback = NULL;
}
// Release the IDeckLink list
for(it = deviceList.begin(); it != deviceList.end(); it++)
{
(*it)->Release();
}
}
bool BlackMagicCamera::setup(int device, int videomode,InputModes conversionMode){
IDeckLinkIterator* deckLinkIterator = NULL;
IDeckLink* deckLink = NULL;
bool result = false;
mInputMode=conversionMode;
mPixelThreshold = 0.5f; //TODO
// Create an iterator
deckLinkIterator = CreateDeckLinkIteratorInstance();
if (deckLinkIterator == NULL)
{
cout << "This application requires the Desktop Video drivers installed. Please install the Blackmagic Desktop Video drivers to use the features of this application." << endl;
goto bail;
}
// List all DeckLink devices
while (deckLinkIterator->Next(&deckLink) == S_OK)
{
// Add device to the device list
deviceList.push_back(deckLink);
}
if (deviceList.size() == 0)
{
cout << "You will not be able to use the features of this application until a Blackmagic device is installed. This application requires at least one Blackmagic device." << endl;
goto bail;
}
result = true;
mCurrentDeviceIndex=-1;
getInputList();
selectDevice(device,videomode,conversionMode);
bail:
if (deckLinkIterator != NULL)
{
deckLinkIterator->Release();
deckLinkIterator = NULL;
}
return result;
}; //general setup
vector<string> BlackMagicCamera::getInputList(){
vector<string> nameList;
int deviceIndex = 0;
nameList.clear();
cout << "Blackmagic Devices found" << endl;
int i=0;
while (deviceIndex < deviceList.size())
{
CFStringRef cfStrName;
string name;
// Get the name of this device
if (deviceList[deviceIndex]->GetDisplayName(&cfStrName) == S_OK)
{
name=convertCfString(cfStrName);
nameList.push_back(name);
}
else
{
name = "DeckLink";
nameList.push_back(name);
}
cout << "[" << i << "]Device: " << name << endl;
i++;
deviceIndex++;
}
return nameList;
}; //returns the names of the inputs
bool BlackMagicCamera::selectDevice(int deviceID, int videoModeIndex, InputModes inputMode )
{
//IDeckLinkAttributes* deckLinkAttributes = NULL;
IDeckLinkDisplayModeIterator* displayModeIterator = NULL;
IDeckLinkDisplayMode* displayMode = NULL;
IDeckLinkDisplayMode* selectedDisplayMode = NULL;
//IDeckLinkDisplayMode* selectedOutputDisplayMode = NULL;
bool result = false;
// Check device index
if (deviceID >= deviceList.size())
{
cout << "This application was unable to select the device. Error getting selecting the DeckLink device." << endl;
goto bail;
}
// A new device has been selected.
// Release the previous selected device and mode list
if (deckLinkInput != NULL){
deckLinkInput->Release();
//deckLinkInput == NULL;
}
// Get the IDeckLinkInput Device
if ((deviceList[deviceID]->QueryInterface(IID_IDeckLinkInput, (void**)&deckLinkInput) != S_OK))
{
cout << "This application was unable to obtain IDeckLinkInput for the selected device. Error getting setting up capture." << endl;
deckLinkInput = NULL;
goto bail;
}
mCurrentDeviceIndex=deviceID;
// retrieve and print video modes
if (deckLinkInput->GetDisplayModeIterator(&displayModeIterator) == S_OK)
{
int i=0;
CFStringRef modeName;
while (displayModeIterator->Next(&displayMode) == S_OK){
string name;
if (displayMode->GetName(&modeName) == S_OK){
name=convertCfString(modeName);
}else {
name="Unknown mode";
}
cout << "[" << i << "]InputMode: " << name << endl;
if (i==videoModeIndex) selectedDisplayMode=displayMode;
i++;
}
displayModeIterator->Release();
}
//check if we selected a valid video mode
if (selectedDisplayMode == NULL)
{
cout << "An invalid display mode was selected. Error starting the capture" << endl;
return false;
}
// Set capture callback
deckLinkInput->SetCallback(this);
// Set the video input mode
HRESULT hr;
//bmdVideoInputFlagDefault
_BMDPixelFormat pixelFormat;
if (inputMode==INPUTMODE_10RGB){
pixelFormat = bmdFormat10BitRGB;
}else if (inputMode==INPUTMODE_10YUV || inputMode==INPUTMODE_10YUVTORGB){
pixelFormat =bmdFormat10BitYUV;
}else{
pixelFormat = bmdFormat8BitYUV;
}
if ( (hr=deckLinkInput->EnableVideoInput(selectedDisplayMode->GetDisplayMode(), pixelFormat, 0)) != S_OK)
{
if (hr==E_INVALIDARG) cout << "E_INVALIDARG" << endl;
if (hr==E_ACCESSDENIED) cout << "E_ACCESSDENIED" << endl;
if (hr==E_OUTOFMEMORY) cout << "E_OUTOFMEMORY" << endl;
if (hr==E_FAIL) cout << "E_FAIL" << endl;
cout << "This application was unable to select the chosen video mode. Perhaps, the selected device is currently in-use. Error starting the capture " << hr << endl;
return false;
}
mWidth=selectedDisplayMode->GetWidth();
mHeight=selectedDisplayMode->GetHeight();
mIsHD=false;
if (mWidth>=1280 && mHeight>=720) mIsHD=true;
result = true;
bail:
return result;
}
bool BlackMagicCamera::startCapture()
{
// Start the capture
if (deckLinkInput->StartStreams() != S_OK)
{
cout << "This application was unable to start the capture. Perhaps, the selected device is currently in-use. Error starting the capture" << endl;
return false;
}
currentlyCapturing = true;
return true;
}
void BlackMagicCamera::stopCapture()
{
// Stop the capture
deckLinkInput->StopStreams();
// Delete capture callback
deckLinkInput->SetCallback(NULL);
currentlyCapturing = false;
}
HRESULT BlackMagicCamera::VideoInputFormatChanged ( BMDVideoInputFormatChangedEvents notificationEvents, IDeckLinkDisplayMode *newMode, BMDDetectedVideoInputFormatFlags detectedSignalFlags)
{
UInt32 modeIndex = 0;
// NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
// Restart capture with the new video mode if told to
// Stop the capture
deckLinkInput->StopStreams();
// Set the video input mode
if (deckLinkInput->EnableVideoInput(newMode->GetDisplayMode(), bmdFormat8BitYUV, bmdVideoInputEnableFormatDetection) != S_OK)
{
stopCapture();
cout << "This application was unable to select the new video mode. Error restarting the capture." << endl;
goto bail;
}
// Start the capture
if (deckLinkInput->StartStreams() != S_OK)
{
stopCapture();
cout << "This application was unable to start the capture on the selected device. Error restarting the capture." << endl;
goto bail;
}
// Find the index of the new mode in the mode list so we can update the UI
while (modeIndex < modeList.size()) {
if (modeList[modeIndex]->GetDisplayMode() == newMode->GetDisplayMode())
{
break;
}
modeIndex++;
}
startCapture();
bail:
return S_OK;
}
HRESULT BlackMagicCamera::VideoInputFrameArrived (/* in */ IDeckLinkVideoInputFrame* videoFrame, /* in */ IDeckLinkAudioInputPacket* audioPacket)
{
//cout << " newFrame " << mNewFrameAvailable << endl;
//bool hasValidInputSource = (videoFrame->GetFlags() & bmdFrameHasNoInputSource) != 0 ? false : true;
/* TODO this is buggy
AncillaryDataStruct ancillaryData;
// Get the various timecodes and userbits for this frame
getAncillaryDataFromFrame(videoFrame, bmdTimecodeVITC, &ancillaryData.vitcF1Timecode, &ancillaryData.vitcF1UserBits);
getAncillaryDataFromFrame(videoFrame, bmdTimecodeVITCField2,&ancillaryData.vitcF2Timecode, &ancillaryData.vitcF2UserBits);
getAncillaryDataFromFrame(videoFrame, bmdTimecodeRP188VITC1,&ancillaryData.rp188vitc1Timecode, &ancillaryData.rp188vitc1UserBits);
getAncillaryDataFromFrame(videoFrame, bmdTimecodeRP188LTC, &ancillaryData.rp188ltcTimecode, &ancillaryData.rp188ltcUserBits);
getAncillaryDataFromFrame(videoFrame, bmdTimecodeRP188VITC2, &ancillaryData.rp188vitc2Timecode, &ancillaryData.rp188vitc2UserBits);
*/
// create surface if needed
ofImage mSurface32;
ofImage mSurface;
if (mInputMode==INPUTMODE_10YUV || mInputMode==INPUTMODE_10YUVTORGB || mInputMode==INPUTMODE_10RGB){
//create a surface
mSurface32.allocate(videoFrame->GetWidth(),videoFrame->GetHeight(),OF_IMAGE_COLOR_ALPHA);
}else{
//create a surface
mSurface.allocate(videoFrame->GetWidth(),videoFrame->GetHeight(),OF_IMAGE_COLOR);
}
// FRAME ANALYSIS
Vec2f pixelCenter=Vec2f(0,0);
int pixelCount=0;
switch (mInputMode){
case INPUTMODE_8YUV:
{
int32_t srcPitch=videoFrame->GetRowBytes();
Byte * srcPointer;
Byte * srcPointerRow;
videoFrame->GetBytes((void**)&srcPointer);
Surface8u::Iter iter = mSurface.getIter( mSurface.getBounds() );
int y=0;
Byte pixelThreshold=(Byte)(mPixelThreshold*255.0f);
while( iter.line() ) {
srcPointerRow = srcPointer;
int x=0;
while( iter.pixel() ) {
Byte cb=*srcPointer;
srcPointer++;
Byte y1=*srcPointer;
srcPointer++;
Byte cr=*srcPointer;
srcPointer++;
Byte y2=*srcPointer;
srcPointer++;
iter.r() = y1;
iter.g() = cr;
iter.b() = cb;
if (y1>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = y2;
iter.g() = cr;
iter.b() = cb;
if (y2>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
}
y++;
srcPointer = srcPointerRow+srcPitch;
}
break;
}
case INPUTMODE_8YUVTORGB:
{
int32_t srcPitch=videoFrame->GetRowBytes();
Byte * srcPointer;
Byte * srcPointerRow;
videoFrame->GetBytes((void**)&srcPointer);
Byte pixelThreshold=(Byte)(mPixelThreshold*255.0f);
Surface8u::Iter iter = mSurface.getIter( mSurface.getBounds() );
int y=0;
while( iter.line() ) {
srcPointerRow = srcPointer;
int x=0;
while( iter.pixel() ) {
Byte cb=*srcPointer;
srcPointer++;
Byte y1=*srcPointer;
srcPointer++;
Byte cr=*srcPointer;
srcPointer++;
Byte y2=*srcPointer;
srcPointer++;
Vec3i col=fromYUVToRGB(y1,cr,cb);
iter.r() = col.x;
iter.g() = col.y;
iter.b() = col.z;
if (y1>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
iter.pixel();
x++;
col=fromYUVToRGB(y2,cr,cb);
iter.r() = col.x;
iter.g() = col.y;
iter.b() = col.z;
if (y2>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
}
y++;
srcPointer = srcPointerRow+srcPitch;
}
break;
}
case INPUTMODE_10YUV:
{
const uint32 mask=1023;
uint32_t srcPitch=videoFrame->GetRowBytes();
uint32 * srcPointer;
uint32 * srcPointerRow;
videoFrame->GetBytes((void**)&srcPointer);
Surface32f::Iter iter = mSurface32.getIter( mSurface32.getBounds() );
int y=0;
uint32 pixelThreshold=(int)(mPixelThreshold*1023.0f);
while( iter.line() ) {
srcPointerRow = srcPointer;
int x=0;
while( iter.pixel() ) {
uint32 int0=*srcPointer;
srcPointer++;
uint32 int1=*srcPointer;
srcPointer++;
uint32 int2=*srcPointer;
srcPointer++;
uint32 int3=*srcPointer;
srcPointer++;
uint32 cr0=(int0 >> 20) & mask;
uint32 y0=(int0 >> 10) & mask;
uint32 cb0=int0 & mask;
uint32 y2=(int1 >> 20) & mask;
uint32 cb2=(int1 >> 10) & mask;
uint32 y1=int1 & mask;
uint32 cb4=(int2 >> 20) & mask;
uint32 y3=(int2 >> 10) & mask;
uint32 cr2=int2 & mask;
uint32 y5=(int3 >> 20) & mask;
uint32 cr4=(int3 >> 10) & mask;
uint32 y4=int3 & mask;
iter.r() = (float)(y0)/1023.0f;
iter.g() = (float)(cr0)/1023.0f;
iter.b() = (float)(cb0)/1023.0f;
if (y0>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y1)/1023.0f;
iter.g() = (float)(cr0)/1023.0f;
iter.b() = (float)(cb0)/1023.0f;
if (y1>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y2)/1023.0f;
iter.g() = (float)(cr2)/1023.0f;
iter.b() = (float)(cb2)/1023.0f;
if (y2>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y3)/1023.0f;
iter.g() = (float)(cr2)/1023.0f;
iter.b() = (float)(cb2)/1023.0f;
if (y3>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y4)/1023.0f;
iter.g() = (float)(cr4)/1023.0f;
iter.b() = (float)(cb4)/1023.0f;
if (y4>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y5)/1023.0f;
iter.g() = (float)(cr4)/1023.0f;
iter.b() = (float)(cb4)/1023.0f;
if (y5>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
}
y++;
srcPointer = srcPointerRow+srcPitch/4; //pitch is 8bit based but pointer is 32bit
}
break;
}
case INPUTMODE_10RGB:
{
const uint32 mask=1023;
uint32_t srcPitch=videoFrame->GetRowBytes();
uint32 * srcPointer;
uint32 * srcPointerRow;
videoFrame->GetBytes((void**)&srcPointer);
Surface32f::Iter iter = mSurface32.getIter( mSurface32.getBounds() );
int y=0;
float luma;
uint32 pixelThreshold=(int)(mPixelThreshold*1023.0f);
while( iter.line() ) {
srcPointerRow = srcPointer;
int x=0;
while( iter.pixel() ) {
uint32 int0=*srcPointer;
srcPointer++;
uint32 int1=*srcPointer;
srcPointer++;
uint32 int2=*srcPointer;
srcPointer++;
uint32 int3=*srcPointer;
srcPointer++;
uint32 cr0=(int0 >> 20) & mask;
uint32 y0=(int0 >> 10) & mask;
uint32 cb0=int0 & mask;
uint32 y2=(int1 >> 20) & mask;
uint32 cb2=(int1 >> 10) & mask;
uint32 y1=int1 & mask;
uint32 cb4=(int2 >> 20) & mask;
uint32 y3=(int2 >> 10) & mask;
uint32 cr2=int2 & mask;
uint32 y5=(int3 >> 20) & mask;
uint32 cr4=(int3 >> 10) & mask;
uint32 y4=int3 & mask;
iter.r() = (float)(y0)/1023.0f;
iter.g() = (float)(cr0)/1023.0f;
iter.b() = (float)(cb0)/1023.0f;
luma = (iter.r() +iter.g()+iter.b())/3.0f;
if (luma>=pixelThreshold){ //sound analysis
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y1)/1023.0f;
iter.g() = (float)(cr0)/1023.0f;
iter.b() = (float)(cb0)/1023.0f;
luma = (iter.r() +iter.g()+iter.b())/3.0f;
if (luma>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y2)/1023.0f;
iter.g() = (float)(cr2)/1023.0f;
iter.b() = (float)(cb2)/1023.0f;
luma = (iter.r() +iter.g()+iter.b())/3.0f;
if (luma>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y3)/1023.0f;
iter.g() = (float)(cr2)/1023.0f;
iter.b() = (float)(cb2)/1023.0f;
luma = (iter.r() +iter.g()+iter.b())/3.0f;
if (luma>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y4)/1023.0f;
iter.g() = (float)(cr4)/1023.0f;
iter.b() = (float)(cb4)/1023.0f;
luma = (iter.r() +iter.g()+iter.b())/3.0f;
if (luma>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
iter.r() = (float)(y5)/1023.0f;
iter.g() = (float)(cr4)/1023.0f;
iter.b() = (float)(cb4)/1023.0f;
luma = (iter.r() +iter.g()+iter.b())/3.0f;
if (luma>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
}
y++;
srcPointer = srcPointerRow+srcPitch/4; //pitch is 8bit based but pointer is 32bit
}
break;
}
case INPUTMODE_10YUVTORGB:
{
const uint32 mask=1023;
uint32_t srcPitch=videoFrame->GetRowBytes();
uint32 * srcPointer;
uint32 * srcPointerRow;
videoFrame->GetBytes((void**)&srcPointer);
Surface32f::Iter iter = mSurface32.getIter( mSurface32.getBounds() );
int y=0;
uint32 pixelThreshold=(int)(mPixelThreshold*1023.0f);
while( iter.line() ) {
srcPointerRow = srcPointer;
int x=0;
while( iter.pixel() ) {
uint32 int0=*srcPointer;
srcPointer++;
uint32 int1=*srcPointer;
srcPointer++;
uint32 int2=*srcPointer;
srcPointer++;
uint32 int3=*srcPointer;
srcPointer++;
uint32 cr0=(int0 >> 20) & mask;
uint32 y0=(int0 >> 10) & mask;
uint32 cb0=int0 & mask;
uint32 y2=(int1 >> 20) & mask;
uint32 cb2=(int1 >> 10) & mask;
uint32 y1=int1 & mask;
uint32 cb4=(int2 >> 20) & mask;
uint32 y3=(int2 >> 10) & mask;
uint32 cr2=int2 & mask;
uint32 y5=(int3 >> 20) & mask;
uint32 cr4=(int3 >> 10) & mask;
uint32 y4=int3 & mask;
Vec3f col=fromYUV10ToRGB(y0,cr0,cb0);
iter.r() = col.x;
iter.g() = col.y;
iter.b() = col.z;
if (y0>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
col=fromYUV10ToRGB(y1,cr0,cb0);
iter.r() = col.x;
iter.g() = col.y;
iter.b() = col.z;
if (y1>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
col=fromYUV10ToRGB(y2,cr2,cb2);
iter.r() = col.x;
iter.g() = col.y;
iter.b() = col.z;
if (y2>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
col=fromYUV10ToRGB(y3,cr2,cb2);
iter.r() = col.x;
iter.g() = col.y;
iter.b() = col.z;
if (y3>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
col=fromYUV10ToRGB(y4,cr4,cb4);
iter.r() = col.x;
iter.g() = col.y;
iter.b() = col.z;
if (y4>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
iter.pixel();
col=fromYUV10ToRGB(y5,cr4,cb4);
iter.r() = col.x;
iter.g() = col.y;
iter.b() = col.z;
if (y5>=pixelThreshold){
pixelCenter+=Vec2f(x,y);
pixelCount++;
}
x++;
//iter.pixel();
}
y++;
srcPointer = srcPointerRow+srcPitch/4; //pitch is 8bit based but pointer is 32bit
}
break;
}
} //end switch inputmode
// FRAME ANALYSIS
if (pixelCount==0){
mPixelCenter = Vec2f(0.5f,0.5f);
mPixelCount=0;
}else{
mPixelCenter = pixelCenter / Vec2f(mWidth,mHeight) / pixelCount;
mPixelCount = pixelCount;
}
//save surface to buffer and delete frames if there are too many
mFrameBufferMutex.lock();
if (mInputMode==INPUTMODE_10YUV || mInputMode==INPUTMODE_10YUVTORGB || mInputMode==INPUTMODE_10RGB){
if (mSurface32Buffer.size()>3){
mSurface32Buffer.erase(mSurface32Buffer.begin());
}
mSurface32Buffer.push_back(mSurface32);
//if (mSurface32Buffer.size()>1) cout << mSurface32Buffer.size() << " frames available" << endl;
}else{
if (mSurfaceBuffer.size()>3){
mSurfaceBuffer.erase(mSurfaceBuffer.begin());
}
mSurfaceBuffer.push_back(mSurface);
//if (mSurfaceBuffer.size()>1) cout << mSurfaceBuffer.size() << " frames available" << endl;
}
mFrameBufferMutex.unlock();
//check if a new frame is already there - if this happens the main app is too slow and will skip a frame
// we could save all frames to an array to avoid skipped frames
// best would be to just copy full frames
return S_OK;
}
Vec3i BlackMagicCamera::fromYUVToRGB(Byte cy, Byte ccr, Byte ccb){
const float y_const = 0.0625;
const float vu_const = 0.5;
//convert hd yuv to rgb HD
float y=float(cy)/255.0f; //y
float cr=float(ccr)/255.0f; //u = cr
float cb=float(ccb)/255.0f; //v = cb
float r = (1.164 * (y - y_const)) + (1.793 * (cr - vu_const));
float g = (1.164 * (y - y_const)) - (0.534 * (cr - vu_const)) - (0.213 * (cb - vu_const));
float b = (1.164 * (y - y_const)) + (2.115 * (cb - vu_const));
r=MAX(MIN(r,1.0),0.0);
g=MAX(MIN(g,1.0),0.0);
b=MAX(MIN(b,1.0),0.0);
return Vec3i(int(r*255.0f),int(g*255.0f),int(b*255.0f));
}
Vec3f BlackMagicCamera::fromYUV10ToRGB(uint32 cy, uint32 ccr, uint32 ccb){
// works good with bmctolnf (0..1) lnf(-8,8,0.0039)
const float y_const = 0.0625f;
const float vu_const = 0.5f;
//convert hd yuv to rgb HD
float y=float(cy)/1023.0f; //y
float cr=float(ccr)/1023.0f; //u = cr
float cb=float(ccb)/1023.0f; //v = cb
float r = (1.164f * (y - y_const)) + (1.793f * (cr - vu_const));
float g = (1.164f * (y - y_const)) - (0.534f * (cr - vu_const)) - (0.213f * (cb - vu_const));
float b = (1.164f * (y - y_const)) + (2.115f * (cb - vu_const));
/* war ganz gut mit bmc,bmc5 mit threshold oder bm3 ohne (aber noch deitliche lücken!)
const float vu_const = 0.5f;
//convert hd yuv to rgb HD
float y=float(cy)/1023.0f; //y
float cr=float(ccr)/1023.0f; //u = cr
float cb=float(ccb)/1023.0f; //v = cb
float r = y + 1.402f * (cr - vu_const);
float g = y - 0.344f * (cb - vu_const) - 0.714f * (cr - vu_const);
float b = y + 1.772 * (cb - vu_const);*/
// works the best with bmc or bmc5 and threshold
/*const float vu_const = 0.5f;
//convert hd yuv to rgb HD
float y=float(cy)/1023.0f; //y
float cr=float(ccr)/1023.0f; //u = cr
float cb=float(ccb)/1023.0f; //v = cb
float r = y + 1.13983f * (cr - vu_const);
float g = y - 0.39465f * (cb - vu_const) - 0.58060f * (cr - vu_const);
float b = y + 2.03211 * (cb - vu_const);*/
/* does not look better than above
const float y_const = 0.0625f;
const float vu_const = 0.5f;
//convert hd yuv to rgb HD
float y=float(cy)/1023.0f; //y
float cr=float(ccr)/1023.0f; //u = cr
float cb=float(ccb)/1023.0f; //v = cb
float r = (1.164f * (y - y_const)) + (1.596f * (cr - vu_const));
float g = (1.164f * (y - y_const)) - (0.813f * (cr - vu_const)) - (0.391f * (cb - vu_const));
float b = (1.164f * (y - y_const)) + (2.018f * (cb - vu_const));*/
r=MAX(MIN(r,1.0f),0.0f);
g=MAX(MIN(g,1.0f),0.0f);
b=MAX(MIN(b,1.0f),0.0f);
return Vec3f(r,g,b);
}
Vec3f BlackMagicCamera::fromYUVToRGB(float y, float cr, float cb){
const float y_const = 0.0625;
const float vu_const = 0.5;
float r = (1.164 * (y - y_const)) + (1.793 * (cr - vu_const));
float g = (1.164 * (y - y_const)) - (0.534 * (cr - vu_const)) - (0.213 * (cb - vu_const));
float b = (1.164 * (y - y_const)) + (2.115 * (cb - vu_const));
r=MAX(MIN(r,1.0),0.0);
g=MAX(MIN(g,1.0),0.0);
b=MAX(MIN(b,1.0),0.0);
return Vec3f(r,g,b);
}
void BlackMagicCamera::getAncillaryDataFromFrame(IDeckLinkVideoInputFrame* videoFrame, BMDTimecodeFormat timecodeFormat, string *timecodeString, string *userBitsString)
{
IDeckLinkTimecode* timecode = NULL;
CFStringRef timecodeCFString;
BMDTimecodeUserBits userBits = 0;
if ((videoFrame != NULL) && (timecodeString != NULL) && (userBitsString != NULL)
&& (videoFrame->GetTimecode(timecodeFormat, &timecode) == S_OK))
{
if (timecode->GetString(&timecodeCFString) == S_OK)
{
*timecodeString = convertCfString(timecodeCFString);
CFRelease(timecodeCFString);
}
else
{
*timecodeString = "";
}
timecode->GetTimecodeUserBits(&userBits);
//TODO userBitsString = convertNsString(NSString(stringWithFormat:@"0x%08X", userBits));
timecode->Release();
}
else
{
*timecodeString = "";
*userBitsString = "";
}
}
bool BlackMagicCamera::newFrameAvailable(){
if (mInputMode==INPUTMODE_10YUV || mInputMode==INPUTMODE_10YUVTORGB || mInputMode==INPUTMODE_10RGB){
if (mSurface32Buffer.size()>0) return true;
}else{
if (mSurfaceBuffer.size()>0) return true;
}
return false;
}; //returns true id a new frame is available
Surface BlackMagicCamera::getFrame(){
mFrameBufferMutex.lock();
Surface surface=*mSurfaceBuffer.begin(); //save surface
if (surface!=NULL){
mSurfaceBuffer.erase(mSurfaceBuffer.begin()); //erase it from buffer
}
mFrameBufferMutex.unlock();
return surface;
};
Surface32f BlackMagicCamera::getFrame32(){
mFrameBufferMutex.lock();
Surface32f surface=*mSurface32Buffer.begin(); //save surface
if (surface!=NULL){
mSurface32Buffer.erase(mSurface32Buffer.begin()); //erase it from buffer
}
mFrameBufferMutex.unlock();
return surface;
};