bool DeviceSource::LoadFilters()
{
if(bCapturing || bFiltersLoaded)
return false;
bool bSucceeded = false;
List<MediaOutputInfo> outputList;
IAMStreamConfig *config = NULL;
bool bAddedVideoCapture = false, bAddedAudioCapture = false, bAddedDevice = false;
GUID expectedMediaType;
IPin *devicePin = NULL, *audioPin = NULL;
HRESULT err;
String strShader;
bUseThreadedConversion = API->UseMultithreadedOptimizations() && (OSGetTotalCores() > 1);
//------------------------------------------------
// basic initialization vars
bool bCheckForceAudio = data->GetInt(TEXT("forceCustomAudioDevice")) != 0;
bUseCustomResolution = data->GetInt(TEXT("customResolution"));
strDevice = data->GetString(TEXT("device"));
strDeviceName = data->GetString(TEXT("deviceName"));
strDeviceID = data->GetString(TEXT("deviceID"));
strAudioDevice = data->GetString(TEXT("audioDevice"));
strAudioName = data->GetString(TEXT("audioDeviceName"));
strAudioID = data->GetString(TEXT("audioDeviceID"));
strAudioGUID = data->GetString(TEXT("audioDeviceCLSID"));
if(strAudioGUID.Compare(TEXT("CLSID_AudioInputDeviceCategory"))) matchGUID = CLSID_AudioInputDeviceCategory;
if(strAudioGUID.Compare(TEXT("CLSID_VideoInputDeviceCategory"))) matchGUID = CLSID_VideoInputDeviceCategory;
if(strAudioGUID.Compare(TEXT("CLSID_AudioRendererCategory"))) {
//Log(TEXT("Dese are spekers.\n"));
matchGUID = CLSID_AudioRendererCategory;
}
bFlipVertical = data->GetInt(TEXT("flipImage")) != 0;
bFlipHorizontal = data->GetInt(TEXT("flipImageHorizontal")) != 0;
opacity = data->GetInt(TEXT("opacity"), 100);
float volume = data->GetFloat(TEXT("volume"), 1.0f);
//------------------------------------------------
// chrom key stuff
bUseChromaKey = data->GetInt(TEXT("useChromaKey")) != 0;
keyColor = data->GetInt(TEXT("keyColor"), 0xFFFFFFFF);
keySimilarity = data->GetInt(TEXT("keySimilarity"));
keyBlend = data->GetInt(TEXT("keyBlend"), 80);
keySpillReduction = data->GetInt(TEXT("keySpillReduction"), 50);
if(keyBaseColor.x < keyBaseColor.y && keyBaseColor.x < keyBaseColor.z)
keyBaseColor -= keyBaseColor.x;
else if(keyBaseColor.y < keyBaseColor.x && keyBaseColor.y < keyBaseColor.z)
keyBaseColor -= keyBaseColor.y;
else if(keyBaseColor.z < keyBaseColor.x && keyBaseColor.z < keyBaseColor.y)
keyBaseColor -= keyBaseColor.z;
//------------------------------------------------
// get the device filter and pins
if(strAudioDevice.IsValid())
{
audioDeviceFilter = GetDeviceByValue(matchGUID, L"FriendlyName", strAudioName, L"DevicePath", strAudioID);
if(!audioDeviceFilter) {
AppWarning(TEXT("DShowAudioPlugin: Invalid audio device: name '%s', path '%s'"), strAudioName.Array(), strAudioID.Array());
}
}
soundOutputType = data->GetInt(TEXT("soundOutputType"));
if(soundOutputType != 0)
{
if(matchGUID == CLSID_AudioRendererCategory) {
err = capture->FindPin(audioDeviceFilter, PINDIR_OUTPUT, &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Audio, FALSE, 0, &audioPin);
}
else {
err = capture->FindPin(audioDeviceFilter, PINDIR_OUTPUT, &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Audio, FALSE, 0, &audioPin);
}
if(FAILED(err))
{
Log(TEXT("DShowAudioPlugin: No audio pin, result = %lX"), err);
soundOutputType = 0;
}
}
int soundTimeOffset = data->GetInt(TEXT("soundTimeOffset"));
//GetOutputList(devicePin, outputList);
//------------------------------------------------
// initialize the basic video variables and data
//------------------------------------------------
// log audio info
{
String strTest;
strTest = FormattedString(TEXT(" audio device: %s,\r\n audio device id %s,\r\n"), strAudioDevice.Array(), strAudioID.Array());
Log(TEXT("------------------------------------------"));
Log(strTest.Array());
}
//------------------------------------------------
// get audio pin configuration, optionally configure audio pin to 44100
GUID expectedAudioType;
if(soundOutputType == 1)
{
IAMStreamConfig *audioConfig;
if(SUCCEEDED(audioPin->QueryInterface(IID_IAMStreamConfig, (void**)&audioConfig)))
{
AM_MEDIA_TYPE *audioMediaType;
if(SUCCEEDED(err = audioConfig->GetFormat(&audioMediaType)))
{
SetAudioInfo(audioMediaType, expectedAudioType);
//Log(TEXT("Fixed size samples: %s\r\n"), (audioMediaType->bFixedSizeSamples) ? "Yes" : "No");
//Log(TEXT("Temporal Compression: %s\r\n"), (audioMediaType->bTemporalCompression) ? "Yes" : "No");
//Log(TEXT("cbFormat: %.16X\r\n"), audioMediaType->cbFormat);
//Log(TEXT("Sample size: %u\r\n"), audioMediaType->lSampleSize);
}
else if(err == E_NOTIMPL) //elgato probably
{
IEnumMediaTypes *audioMediaTypes;
if(SUCCEEDED(err = audioPin->EnumMediaTypes(&audioMediaTypes)))
{
ULONG i = 0;
if((err = audioMediaTypes->Next(1, &audioMediaType, &i)) == S_OK)
SetAudioInfo(audioMediaType, expectedAudioType);
else
{
AppWarning(TEXT("DShowAudioPlugin: audioMediaTypes->Next failed, result = %08lX"), err);
soundOutputType = 0;
}
audioMediaTypes->Release();
}
else
{
AppWarning(TEXT("DShowAudioPlugin: audioMediaTypes->Next failed, result = %08lX"), err);
soundOutputType = 0;
}
}
else
{
AppWarning(TEXT("DShowAudioPlugin: Could not get audio format, result = %08lX"), err);
soundOutputType = 0;
}
audioConfig->Release();
}
else {
soundOutputType = 0;
}
}
//------------------------------------------------
// add video capture filter if any
captureFilter = new CaptureFilter(this, MEDIATYPE_Video, expectedMediaType);
if(FAILED(err = graph->AddFilter(captureFilter, NULL)))
{
AppWarning(TEXT("DShowAudioPlugin: Failed to add video capture filter to graph, result = %08lX"), err);
goto cleanFinish;
}
bAddedVideoCapture = true;
//------------------------------------------------
// add audio capture filter if any
if(soundOutputType == 1)
{
audioFilter = new CaptureFilter(this, MEDIATYPE_Audio, expectedAudioType);
if(!audioFilter)
{
AppWarning(TEXT("Failed to create audio capture filter"));
soundOutputType = 0;
}
}
else if(soundOutputType == 2)
{
if(FAILED(err = CoCreateInstance(CLSID_DSoundRender, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void**)&audioFilter)))
{
AppWarning(TEXT("DShowPlugin: failed to create audio renderer, result = %08lX"), err);
soundOutputType = 0;
}
IBasicAudio *basicAudio;
if(SUCCEEDED(audioFilter->QueryInterface(IID_IBasicAudio, (void**)&basicAudio)))
{
long lVol = long((double(volume)*NEAR_SILENTf)-NEAR_SILENTf);
if(lVol <= -NEAR_SILENT)
lVol = -10000;
basicAudio->put_Volume(lVol);
basicAudio->Release();
}
}
if(soundOutputType != 0)
{
if(FAILED(err = graph->AddFilter(audioFilter, NULL)))
{
AppWarning(TEXT("DShowAudioPlugin: Failed to add audio capture filter to graph, result = %08lX"), err);
goto cleanFinish;
}
bAddedAudioCapture = true;
}
//------------------------------------------------
// add primary device filter
if(FAILED(err = graph->AddFilter(audioDeviceFilter, NULL)))
{
AppWarning(TEXT("DShowAudioPlugin: Failed to add audio device filter to graph, result = %08lX"), err);
goto cleanFinish;
}
bAddedDevice = true;
//------------------------------------------------
// connect all pins and set up the whole capture thing
bool bConnected;
if(soundOutputType != 0)
{
bConnected = SUCCEEDED(err = capture->RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Audio, audioDeviceFilter, NULL, audioFilter));
if(!bConnected)
{
AppWarning(TEXT("DShowAudioPlugin: Failed to connect the audio device pin to the audio capture pin, result = %08lX"), err);
soundOutputType = 0;
}
}
if(FAILED(err = graph->QueryInterface(IID_IMediaControl, (void**)&control)))
{
AppWarning(TEXT("DShowAudioPlugin: Failed to get IMediaControl, result = %08lX"), err);
goto cleanFinish;
}
if(soundOutputType == 1)
{
audioOut = new DeviceAudioSource;
audioOut->Initialize(this);
API->AddAudioSource(audioOut);
audioOut->SetAudioOffset(soundTimeOffset);
audioOut->SetVolume(volume);
}
bSucceeded = true;
cleanFinish:
SafeRelease(config);
SafeRelease(devicePin);
SafeRelease(audioPin);
for(UINT i=0; i<outputList.Num(); i++)
outputList[i].FreeData();
if(!bSucceeded)
{
bCapturing = false;
if(bAddedVideoCapture)
graph->RemoveFilter(captureFilter);
if(bAddedAudioCapture)
graph->RemoveFilter(audioFilter);
if(bAddedDevice) {
graph->RemoveFilter(audioDeviceFilter);
graph->RemoveFilter(deviceFilter);
}
SafeRelease(audioDeviceFilter);
SafeRelease(deviceFilter);
SafeRelease(captureFilter);
SafeRelease(audioFilter);
SafeRelease(control);
if(colorConvertShader)
{
delete colorConvertShader;
colorConvertShader = NULL;
}
if(audioOut)
{
delete audioOut;
audioOut = NULL;
}
if(lpImageBuffer)
{
Free(lpImageBuffer);
lpImageBuffer = NULL;
}
bReadyToDraw = true;
}
else
bReadyToDraw = false;
if(!renderCX) renderCX = 32;
if(!renderCY) renderCY = 32;
//-----------------------------------------------------
// create the texture regardless, will just show up as red to indicate failure
BYTE *textureData = (BYTE*)Allocate(renderCX*renderCY*4);
if(colorType == DeviceOutputType_RGB) //you may be confused, but when directshow outputs RGB, it's actually outputting BGR
{
msetd(textureData, 0xFFFF0000, renderCX*renderCY*4);
texture = CreateTexture(renderCX, renderCY, GS_BGR, textureData, FALSE, FALSE);
}
else //if we're working with planar YUV, we can just use regular RGB textures instead
{
msetd(textureData, 0xFF0000FF, renderCX*renderCY*4);
texture = CreateTexture(renderCX, renderCY, GS_RGB, textureData, FALSE, FALSE);
}
if(bSucceeded && bUseThreadedConversion)
{
if(colorType == DeviceOutputType_I420 || colorType == DeviceOutputType_YV12)
{
LPBYTE lpData;
if(texture->Map(lpData, texturePitch))
texture->Unmap();
else
texturePitch = renderCX*4;
lpImageBuffer = (LPBYTE)Allocate(texturePitch*renderCY);
}
}
Free(textureData);
bFiltersLoaded = bSucceeded;
return bSucceeded;
}
bool DeviceSource::LoadFilters()
{
if(bCapturing || bFiltersLoaded)
return false;
bool bSucceeded = false;
List<MediaOutputInfo> outputList;
IAMStreamConfig *config = NULL;
bool bAddedVideoCapture = false, bAddedAudioCapture = false, bAddedDevice = false;
GUID expectedMediaType;
IPin *devicePin = NULL, *audioPin = NULL;
HRESULT err;
String strShader;
bUseThreadedConversion = API->UseMultithreadedOptimizations() && (OSGetTotalCores() > 1);
//------------------------------------------------
// basic initialization vars
bool bForceCustomAudio = data->GetInt(TEXT("forceCustomAudioDevice")) != 0;
bUseCustomResolution = data->GetInt(TEXT("customResolution"));
strDevice = data->GetString(TEXT("device"));
strDeviceName = data->GetString(TEXT("deviceName"));
strDeviceID = data->GetString(TEXT("deviceID"));
strAudioDevice = data->GetString(TEXT("audioDevice"));
strAudioName = data->GetString(TEXT("audioDeviceName"));
strAudioID = data->GetString(TEXT("audioDeviceID"));
bFlipVertical = data->GetInt(TEXT("flipImage")) != 0;
bFlipHorizontal = data->GetInt(TEXT("flipImageHorizontal")) != 0;
bUsePointFiltering = data->GetInt(TEXT("usePointFiltering")) != 0;
opacity = data->GetInt(TEXT("opacity"), 100);
float volume = data->GetFloat(TEXT("volume"), 1.0f);
bUseBuffering = data->GetInt(TEXT("useBuffering")) != 0;
bufferTime = data->GetInt(TEXT("bufferTime"))*10000;
//------------------------------------------------
// chrom key stuff
bUseChromaKey = data->GetInt(TEXT("useChromaKey")) != 0;
keyColor = data->GetInt(TEXT("keyColor"), 0xFFFFFFFF);
keySimilarity = data->GetInt(TEXT("keySimilarity"));
keyBlend = data->GetInt(TEXT("keyBlend"), 80);
keySpillReduction = data->GetInt(TEXT("keySpillReduction"), 50);
if(keyBaseColor.x < keyBaseColor.y && keyBaseColor.x < keyBaseColor.z)
keyBaseColor -= keyBaseColor.x;
else if(keyBaseColor.y < keyBaseColor.x && keyBaseColor.y < keyBaseColor.z)
keyBaseColor -= keyBaseColor.y;
else if(keyBaseColor.z < keyBaseColor.x && keyBaseColor.z < keyBaseColor.y)
keyBaseColor -= keyBaseColor.z;
//------------------------------------------------
// get the device filter and pins
if(strDeviceName.IsValid())
deviceFilter = GetDeviceByValue(CLSID_VideoInputDeviceCategory, L"FriendlyName", strDeviceName, L"DevicePath", strDeviceID);
else
{
if(!strDevice.IsValid())
{
AppWarning(TEXT("DShowPlugin: Invalid device specified"));
goto cleanFinish;
}
deviceFilter = GetDeviceByValue(CLSID_VideoInputDeviceCategory, L"FriendlyName", strDevice);
}
if(!deviceFilter)
{
AppWarning(TEXT("DShowPlugin: Could not create device filter"));
goto cleanFinish;
}
devicePin = GetOutputPin(deviceFilter, &MEDIATYPE_Video);
if(!devicePin)
{
AppWarning(TEXT("DShowPlugin: Could not get device video pin"));
goto cleanFinish;
}
soundOutputType = data->GetInt(TEXT("soundOutputType")); //0 is for backward-compatibility
if (strAudioID.CompareI(TEXT("Disabled")))
soundOutputType = 0;
if(soundOutputType != 0)
{
if(!bForceCustomAudio)
{
err = capture->FindPin(deviceFilter, PINDIR_OUTPUT, &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Audio, FALSE, 0, &audioPin);
bDeviceHasAudio = SUCCEEDED(err);
}
else
bDeviceHasAudio = false;
if(!bDeviceHasAudio)
{
if(strDeviceName.IsValid())
{
audioDeviceFilter = GetDeviceByValue(CLSID_AudioInputDeviceCategory, L"FriendlyName", strAudioName, L"DevicePath", strAudioID);
if(!audioDeviceFilter)
AppWarning(TEXT("DShowPlugin: Invalid audio device: name '%s', path '%s'"), strAudioName.Array(), strAudioID.Array());
}
else if(strAudioDevice.IsValid())
{
audioDeviceFilter = GetDeviceByValue(CLSID_AudioInputDeviceCategory, L"FriendlyName", strAudioDevice);
if(!audioDeviceFilter)
AppWarning(TEXT("DShowPlugin: Could not create audio device filter"));
}
if(audioDeviceFilter)
err = capture->FindPin(audioDeviceFilter, PINDIR_OUTPUT, &PIN_CATEGORY_CAPTURE, &MEDIATYPE_Audio, FALSE, 0, &audioPin);
else
err = E_FAIL;
}
if(FAILED(err) || !audioPin)
{
Log(TEXT("DShowPlugin: No audio pin, result = %lX"), err);
soundOutputType = 0;
}
}
else
bDeviceHasAudio = bForceCustomAudio = false;
int soundTimeOffset = data->GetInt(TEXT("soundTimeOffset"));
GetOutputList(devicePin, outputList);
//------------------------------------------------
// initialize the basic video variables and data
renderCX = renderCY = 0;
frameInterval = 0;
if(bUseCustomResolution)
{
renderCX = data->GetInt(TEXT("resolutionWidth"));
renderCY = data->GetInt(TEXT("resolutionHeight"));
frameInterval = data->GetInt(TEXT("frameInterval"));
}
else
{
SIZE size;
if (!GetClosestResolution(outputList, size, frameInterval))
{
AppWarning(TEXT("DShowPlugin: Unable to find appropriate resolution"));
renderCX = renderCY = 64;
goto cleanFinish;
}
renderCX = size.cx;
renderCY = size.cy;
}
if(!renderCX || !renderCY || !frameInterval)
{
AppWarning(TEXT("DShowPlugin: Invalid size/fps specified"));
goto cleanFinish;
}
preferredOutputType = (data->GetInt(TEXT("usePreferredType")) != 0) ? data->GetInt(TEXT("preferredType")) : -1;
int numThreads = MAX(OSGetTotalCores()-2, 1);
for(int i=0; i<numThreads; i++)
{
convertData[i].width = renderCX;
convertData[i].height = renderCY;
convertData[i].sample = NULL;
convertData[i].hSignalConvert = CreateEvent(NULL, FALSE, FALSE, NULL);
convertData[i].hSignalComplete = CreateEvent(NULL, FALSE, FALSE, NULL);
if(i == 0)
convertData[i].startY = 0;
else
convertData[i].startY = convertData[i-1].endY;
if(i == (numThreads-1))
convertData[i].endY = renderCY;
else
convertData[i].endY = ((renderCY/numThreads)*(i+1)) & 0xFFFFFFFE;
}
bFirstFrame = true;
//------------------------------------------------
// get the closest media output for the settings used
MediaOutputInfo *bestOutput = GetBestMediaOutput(outputList, renderCX, renderCY, preferredOutputType, frameInterval);
if(!bestOutput)
{
AppWarning(TEXT("DShowPlugin: Could not find appropriate resolution to create device image source"));
goto cleanFinish;
}
//------------------------------------------------
// log video info
{
String strTest = FormattedString(TEXT(" device: %s,\r\n device id %s,\r\n chosen type: %s, usingFourCC: %s, res: %ux%u - %ux%u, frameIntervals: %llu-%llu"),
strDevice.Array(), strDeviceID.Array(),
EnumToName[(int)bestOutput->videoType],
bestOutput->bUsingFourCC ? TEXT("true") : TEXT("false"),
bestOutput->minCX, bestOutput->minCY, bestOutput->maxCX, bestOutput->maxCY,
bestOutput->minFrameInterval, bestOutput->maxFrameInterval);
BITMAPINFOHEADER *bmiHeader = GetVideoBMIHeader(bestOutput->mediaType);
char fourcc[5];
mcpy(fourcc, &bmiHeader->biCompression, 4);
fourcc[4] = 0;
if(bmiHeader->biCompression > 1000)
strTest << FormattedString(TEXT(", fourCC: '%S'\r\n"), fourcc);
else
strTest << FormattedString(TEXT(", fourCC: %08lX\r\n"), bmiHeader->biCompression);
if(!bDeviceHasAudio) strTest << FormattedString(TEXT(" audio device: %s,\r\n audio device id %s,\r\n"), strAudioDevice.Array(), strAudioID.Array());
Log(TEXT("------------------------------------------"));
Log(strTest.Array());
}
//------------------------------------------------
// set up shaders and video output data
expectedMediaType = bestOutput->mediaType->subtype;
colorType = DeviceOutputType_RGB;
if(bestOutput->videoType == VideoOutputType_I420)
colorType = DeviceOutputType_I420;
else if(bestOutput->videoType == VideoOutputType_YV12)
colorType = DeviceOutputType_YV12;
else if(bestOutput->videoType == VideoOutputType_YVYU)
colorType = DeviceOutputType_YVYU;
else if(bestOutput->videoType == VideoOutputType_YUY2)
colorType = DeviceOutputType_YUY2;
else if(bestOutput->videoType == VideoOutputType_UYVY)
colorType = DeviceOutputType_UYVY;
else if(bestOutput->videoType == VideoOutputType_HDYC)
colorType = DeviceOutputType_HDYC;
else
{
colorType = DeviceOutputType_RGB;
expectedMediaType = MEDIASUBTYPE_RGB32;
}
strShader = ChooseShader();
if(strShader.IsValid())
colorConvertShader = CreatePixelShaderFromFile(strShader);
if(colorType != DeviceOutputType_RGB && !colorConvertShader)
{
AppWarning(TEXT("DShowPlugin: Could not create color space conversion pixel shader"));
goto cleanFinish;
}
if(colorType == DeviceOutputType_YV12 || colorType == DeviceOutputType_I420)
{
for(int i=0; i<numThreads; i++)
hConvertThreads[i] = OSCreateThread((XTHREAD)PackPlanarThread, convertData+i);
}
//------------------------------------------------
// set chroma details
keyBaseColor = Color4().MakeFromRGBA(keyColor);
Matrix4x4TransformVect(keyChroma, (colorType == DeviceOutputType_HDYC) ? (float*)yuv709Mat : (float*)yuvMat, keyBaseColor);
keyChroma *= 2.0f;
//------------------------------------------------
// configure video pin
if(FAILED(err = devicePin->QueryInterface(IID_IAMStreamConfig, (void**)&config)))
{
AppWarning(TEXT("DShowPlugin: Could not get IAMStreamConfig for device pin, result = %08lX"), err);
goto cleanFinish;
}
AM_MEDIA_TYPE outputMediaType;
CopyMediaType(&outputMediaType, bestOutput->mediaType);
VIDEOINFOHEADER *vih = reinterpret_cast<VIDEOINFOHEADER*>(outputMediaType.pbFormat);
BITMAPINFOHEADER *bmi = GetVideoBMIHeader(&outputMediaType);
vih->AvgTimePerFrame = frameInterval;
bmi->biWidth = renderCX;
bmi->biHeight = renderCY;
bmi->biSizeImage = renderCX*renderCY*(bmi->biBitCount>>3);
if(FAILED(err = config->SetFormat(&outputMediaType)))
{
if(err != E_NOTIMPL)
{
AppWarning(TEXT("DShowPlugin: SetFormat on device pin failed, result = %08lX"), err);
goto cleanFinish;
}
}
FreeMediaType(outputMediaType);
//------------------------------------------------
// get audio pin configuration, optionally configure audio pin to 44100
GUID expectedAudioType;
if(soundOutputType == 1)
{
IAMStreamConfig *audioConfig;
if(SUCCEEDED(audioPin->QueryInterface(IID_IAMStreamConfig, (void**)&audioConfig)))
{
AM_MEDIA_TYPE *audioMediaType;
if(SUCCEEDED(err = audioConfig->GetFormat(&audioMediaType)))
{
SetAudioInfo(audioMediaType, expectedAudioType);
}
else if(err == E_NOTIMPL) //elgato probably
{
IEnumMediaTypes *audioMediaTypes;
if(SUCCEEDED(err = audioPin->EnumMediaTypes(&audioMediaTypes)))
{
ULONG i = 0;
if((err = audioMediaTypes->Next(1, &audioMediaType, &i)) == S_OK)
SetAudioInfo(audioMediaType, expectedAudioType);
else
{
AppWarning(TEXT("DShowPlugin: audioMediaTypes->Next failed, result = %08lX"), err);
soundOutputType = 0;
}
audioMediaTypes->Release();
}
else
{
AppWarning(TEXT("DShowPlugin: audioMediaTypes->Next failed, result = %08lX"), err);
soundOutputType = 0;
}
}
else
{
AppWarning(TEXT("DShowPlugin: Could not get audio format, result = %08lX"), err);
soundOutputType = 0;
}
audioConfig->Release();
}
else {
soundOutputType = 0;
}
}
//------------------------------------------------
// add video capture filter if any
captureFilter = new CaptureFilter(this, MEDIATYPE_Video, expectedMediaType);
if(FAILED(err = graph->AddFilter(captureFilter, NULL)))
{
AppWarning(TEXT("DShowPlugin: Failed to add video capture filter to graph, result = %08lX"), err);
goto cleanFinish;
}
bAddedVideoCapture = true;
//------------------------------------------------
// add audio capture filter if any
if(soundOutputType == 1)
{
audioFilter = new CaptureFilter(this, MEDIATYPE_Audio, expectedAudioType);
if(!audioFilter)
{
AppWarning(TEXT("Failed to create audio capture filter"));
soundOutputType = 0;
}
}
else if(soundOutputType == 2)
{
if(FAILED(err = CoCreateInstance(CLSID_AudioRender, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void**)&audioFilter)))
{
AppWarning(TEXT("DShowPlugin: failed to create audio renderer, result = %08lX"), err);
soundOutputType = 0;
}
IBasicAudio *basicAudio;
if(SUCCEEDED(audioFilter->QueryInterface(IID_IBasicAudio, (void**)&basicAudio)))
{
long lVol = long((double(volume)*NEAR_SILENTf)-NEAR_SILENTf);
if(lVol <= -NEAR_SILENT)
lVol = -10000;
basicAudio->put_Volume(lVol);
basicAudio->Release();
}
}
if(soundOutputType != 0)
{
if(FAILED(err = graph->AddFilter(audioFilter, NULL)))
AppWarning(TEXT("DShowPlugin: Failed to add audio capture filter to graph, result = %08lX"), err);
bAddedAudioCapture = true;
}
//------------------------------------------------
// add primary device filter
if(FAILED(err = graph->AddFilter(deviceFilter, NULL)))
{
AppWarning(TEXT("DShowPlugin: Failed to add device filter to graph, result = %08lX"), err);
goto cleanFinish;
}
if(soundOutputType != 0 && !bDeviceHasAudio)
{
if(FAILED(err = graph->AddFilter(audioDeviceFilter, NULL)))
AppWarning(TEXT("DShowPlugin: Failed to add audio device filter to graph, result = %08lX"), err);
}
bAddedDevice = true;
//------------------------------------------------
// connect all pins and set up the whole capture thing
//THANK THE NINE DIVINES I FINALLY GOT IT WORKING
bool bConnected = SUCCEEDED(err = capture->RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Video, deviceFilter, NULL, captureFilter));
if(!bConnected)
{
if(FAILED(err = graph->Connect(devicePin, captureFilter->GetCapturePin())))
{
AppWarning(TEXT("DShowPlugin: Failed to connect the video device pin to the video capture pin, result = %08lX"), err);
goto cleanFinish;
}
}
if(soundOutputType != 0)
{
if(!bDeviceHasAudio)
bConnected = SUCCEEDED(err = capture->RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Audio, audioDeviceFilter, NULL, audioFilter));
else
bConnected = SUCCEEDED(err = capture->RenderStream(&PIN_CATEGORY_CAPTURE, &MEDIATYPE_Audio, deviceFilter, NULL, audioFilter));
if(!bConnected)
{
AppWarning(TEXT("DShowPlugin: Failed to connect the audio device pin to the audio capture pin, result = %08lX"), err);
soundOutputType = 0;
}
}
if(FAILED(err = graph->QueryInterface(IID_IMediaControl, (void**)&control)))
{
AppWarning(TEXT("DShowPlugin: Failed to get IMediaControl, result = %08lX"), err);
goto cleanFinish;
}
if (bUseBuffering) {
if (!(hStopSampleEvent = CreateEvent(NULL, FALSE, FALSE, NULL))) {
AppWarning(TEXT("DShowPlugin: Failed to create stop event"), err);
goto cleanFinish;
}
if (!(hSampleThread = OSCreateThread((XTHREAD)SampleThread, this))) {
AppWarning(TEXT("DShowPlugin: Failed to create sample thread"), err);
goto cleanFinish;
}
}
if(soundOutputType == 1)
{
audioOut = new DeviceAudioSource;
audioOut->Initialize(this);
API->AddAudioSource(audioOut);
audioOut->SetAudioOffset(soundTimeOffset);
audioOut->SetVolume(volume);
}
bSucceeded = true;
cleanFinish:
SafeRelease(config);
SafeRelease(devicePin);
SafeRelease(audioPin);
for(UINT i=0; i<outputList.Num(); i++)
outputList[i].FreeData();
if(!bSucceeded)
{
bCapturing = false;
if(bAddedVideoCapture)
graph->RemoveFilter(captureFilter);
if(bAddedAudioCapture)
graph->RemoveFilter(audioFilter);
if(bAddedDevice)
{
if(!bDeviceHasAudio && audioDeviceFilter)
graph->RemoveFilter(audioDeviceFilter);
graph->RemoveFilter(deviceFilter);
}
SafeRelease(audioDeviceFilter);
SafeRelease(deviceFilter);
SafeRelease(captureFilter);
SafeRelease(audioFilter);
SafeRelease(control);
if (hSampleThread) {
SetEvent(hStopSampleEvent);
WaitForSingleObject(hSampleThread, INFINITE);
CloseHandle(hSampleThread);
hSampleThread = NULL;
}
if (hStopSampleEvent) {
CloseHandle(hStopSampleEvent);
hStopSampleEvent = NULL;
}
if(colorConvertShader)
{
delete colorConvertShader;
colorConvertShader = NULL;
}
if(audioOut)
{
delete audioOut;
audioOut = NULL;
}
if(lpImageBuffer)
{
Free(lpImageBuffer);
lpImageBuffer = NULL;
}
bReadyToDraw = true;
}
else
bReadyToDraw = false;
if(!renderCX) renderCX = 32;
if(!renderCY) renderCY = 32;
//-----------------------------------------------------
// create the texture regardless, will just show up as red to indicate failure
BYTE *textureData = (BYTE*)Allocate(renderCX*renderCY*4);
if(colorType == DeviceOutputType_RGB) //you may be confused, but when directshow outputs RGB, it's actually outputting BGR
{
msetd(textureData, 0xFFFF0000, renderCX*renderCY*4);
texture = CreateTexture(renderCX, renderCY, GS_BGR, textureData, FALSE, FALSE);
}
else //if we're working with planar YUV, we can just use regular RGB textures instead
{
msetd(textureData, 0xFF0000FF, renderCX*renderCY*4);
texture = CreateTexture(renderCX, renderCY, GS_RGB, textureData, FALSE, FALSE);
}
if(bSucceeded && bUseThreadedConversion)
{
if(colorType == DeviceOutputType_I420 || colorType == DeviceOutputType_YV12)
{
LPBYTE lpData;
if(texture->Map(lpData, texturePitch))
texture->Unmap();
else
texturePitch = renderCX*4;
lpImageBuffer = (LPBYTE)Allocate(texturePitch*renderCY);
}
}
Free(textureData);
bFiltersLoaded = bSucceeded;
return bSucceeded;
}
