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Video backend
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This commit is contained in:
Aiden
2026-05-09 14:15:49 +10:00
parent 98f5cbe309
commit 4ffbb97abf
21 changed files with 512 additions and 275 deletions
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59
apps/LoopThroughWithOpenGLCompositing/videoio/decklink/DeckLinkSession.cpp
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@@ -92,14 +92,19 @@ void DeckLinkSession::ReleaseResources()
output.Release();
}
bool DeckLinkSession::DiscoverDevicesAndModes(const VideoFormatSelection& videoModes, std::string& error)
bool DeckLinkSession::DiscoverDevicesAndModes(const VideoIOConfiguration& config, std::string& error)
{
CComPtr<IDeckLinkIterator> deckLinkIterator;
CComPtr<IDeckLinkDisplayMode> inputMode;
CComPtr<IDeckLinkDisplayMode> outputMode;
mState.inputDisplayModeName = videoModes.input.displayName;
mState.outputDisplayModeName = videoModes.output.displayName;
mState.backendId = BackendId();
mState.externalKeyingRequested = config.externalKeyingEnabled;
if (!ResolveConfiguredDeckLinkVideoModes(config, mConfiguredModes, error))
return false;
mState.inputDisplayModeName = mConfiguredModes.input.displayName;
mState.outputDisplayModeName = mConfiguredModes.output.displayName;
HRESULT result = CoCreateInstance(CLSID_CDeckLinkIterator, nullptr, CLSCTX_ALL, IID_IDeckLinkIterator, reinterpret_cast<void**>(&deckLinkIterator));
if (FAILED(result))
@@ -151,9 +156,9 @@ bool DeckLinkSession::DiscoverDevicesAndModes(const VideoFormatSelection& videoM
output.Release();
else
{
mState.outputModelName = modelName;
mState.supportsInternalKeying = deviceSupportsInternalKeying;
mState.supportsExternalKeying = deviceSupportsExternalKeying;
mState.deviceName = modelName;
mState.capabilities.supportsInternalKeying = deviceSupportsInternalKeying;
mState.capabilities.supportsExternalKeying = deviceSupportsExternalKeying;
}
}
@@ -178,9 +183,9 @@ bool DeckLinkSession::DiscoverDevicesAndModes(const VideoFormatSelection& videoM
return false;
}
if (input && !FindDeckLinkDisplayMode(inputDisplayModeIterator, videoModes.input.displayMode, &inputMode))
if (input && !FindDeckLinkDisplayMode(inputDisplayModeIterator, mConfiguredModes.input.displayMode, &inputMode))
{
error = "Cannot get specified input BMDDisplayMode for configured mode: " + videoModes.input.displayName;
error = "Cannot get specified input BMDDisplayMode for configured mode: " + mConfiguredModes.input.displayName;
ReleaseResources();
return false;
}
@@ -194,9 +199,9 @@ bool DeckLinkSession::DiscoverDevicesAndModes(const VideoFormatSelection& videoM
return false;
}
if (!FindDeckLinkDisplayMode(outputDisplayModeIterator, videoModes.output.displayMode, &outputMode))
if (!FindDeckLinkDisplayMode(outputDisplayModeIterator, mConfiguredModes.output.displayMode, &outputMode))
{
error = "Cannot get specified output BMDDisplayMode for configured mode: " + videoModes.output.displayName;
error = "Cannot get specified output BMDDisplayMode for configured mode: " + mConfiguredModes.output.displayName;
ReleaseResources();
return false;
}
@@ -223,7 +228,7 @@ bool DeckLinkSession::DiscoverDevicesAndModes(const VideoFormatSelection& videoM
return true;
}
bool DeckLinkSession::SelectPreferredFormats(const VideoFormatSelection& videoModes, bool outputAlphaRequired, std::string& error)
bool DeckLinkSession::SelectPreferredFormats(const VideoIOConfiguration& config, std::string& error)
{
if (!output)
{
@@ -233,19 +238,19 @@ bool DeckLinkSession::SelectPreferredFormats(const VideoFormatSelection& videoMo
mState.formatStatusMessage.clear();
const bool inputTenBitSupported = input != nullptr && InputSupportsFormat(input, videoModes.input.displayMode, bmdFormat10BitYUV);
const bool inputTenBitSupported = input != nullptr && InputSupportsFormat(input, mConfiguredModes.input.displayMode, bmdFormat10BitYUV);
mState.inputPixelFormat = input != nullptr ? ChoosePreferredVideoIOFormat(inputTenBitSupported) : VideoIOPixelFormat::Uyvy8;
if (input != nullptr && !inputTenBitSupported)
mState.formatStatusMessage += "DeckLink input does not report 10-bit YUV support for the configured mode; using 8-bit capture. ";
const bool outputTenBitSupported = OutputSupportsFormat(output, videoModes.output.displayMode, bmdFormat10BitYUV);
const bool outputTenBitYuvaSupported = OutputSupportsFormat(output, videoModes.output.displayMode, bmdFormat10BitYUVA);
mState.outputPixelFormat = outputAlphaRequired
const bool outputTenBitSupported = OutputSupportsFormat(output, mConfiguredModes.output.displayMode, bmdFormat10BitYUV);
const bool outputTenBitYuvaSupported = OutputSupportsFormat(output, mConfiguredModes.output.displayMode, bmdFormat10BitYUVA);
mState.outputPixelFormat = config.externalKeyingEnabled
? (outputTenBitYuvaSupported ? VideoIOPixelFormat::Yuva10 : VideoIOPixelFormat::Bgra8)
: (outputTenBitSupported ? VideoIOPixelFormat::V210 : VideoIOPixelFormat::Bgra8);
if (outputAlphaRequired && outputTenBitYuvaSupported)
if (config.externalKeyingEnabled && outputTenBitYuvaSupported)
mState.formatStatusMessage += "External keying requires alpha; using 10-bit YUVA output. ";
else if (outputAlphaRequired)
else if (config.externalKeyingEnabled)
mState.formatStatusMessage += "External keying requires alpha, but DeckLink output does not report 10-bit YUVA support for the configured mode; using 8-bit BGRA output. ";
else if (!outputTenBitSupported)
mState.formatStatusMessage += "DeckLink output does not report 10-bit YUV support for the configured mode; using 8-bit BGRA output. ";
@@ -286,7 +291,7 @@ bool DeckLinkSession::SelectPreferredFormats(const VideoFormatSelection& videoMo
return true;
}
bool DeckLinkSession::ConfigureInput(InputFrameCallback callback, const VideoFormat& inputVideoMode, std::string& error)
bool DeckLinkSession::ConfigureInput(InputFrameCallback callback, std::string& error)
{
mInputFrameCallback = std::move(callback);
@@ -298,7 +303,7 @@ bool DeckLinkSession::ConfigureInput(InputFrameCallback callback, const VideoFor
}
const BMDPixelFormat deckLinkInputPixelFormat = DeckLinkPixelFormatForVideoIO(mState.inputPixelFormat);
if (input->EnableVideoInput(inputVideoMode.displayMode, deckLinkInputPixelFormat, bmdVideoInputFlagDefault) != S_OK)
if (input->EnableVideoInput(mConfiguredModes.input.displayMode, deckLinkInputPixelFormat, bmdVideoInputFlagDefault) != S_OK)
{
if (mState.inputPixelFormat == VideoIOPixelFormat::V210)
{
@@ -306,7 +311,7 @@ bool DeckLinkSession::ConfigureInput(InputFrameCallback callback, const VideoFor
mState.inputPixelFormat = VideoIOPixelFormat::Uyvy8;
mState.inputFrameRowBytes = mState.inputFrameSize.width * 2u;
mState.captureTextureWidth = mState.inputFrameSize.width / 2u;
if (input->EnableVideoInput(inputVideoMode.displayMode, bmdFormat8BitYUV, bmdVideoInputFlagDefault) == S_OK)
if (input->EnableVideoInput(mConfiguredModes.input.displayMode, bmdFormat8BitYUV, bmdVideoInputFlagDefault) == S_OK)
{
std::ostringstream status;
status << "DeckLink formats: capture " << VideoIOPixelFormatName(mState.inputPixelFormat)
@@ -341,26 +346,26 @@ input_enabled:
return true;
}
bool DeckLinkSession::ConfigureOutput(OutputFrameCallback callback, const VideoFormat& outputVideoMode, bool externalKeyingEnabled, std::string& error)
bool DeckLinkSession::ConfigureOutput(OutputFrameCallback callback, std::string& error)
{
mOutputFrameCallback = std::move(callback);
if (output->EnableVideoOutput(outputVideoMode.displayMode, bmdVideoOutputFlagDefault) != S_OK)
if (output->EnableVideoOutput(mConfiguredModes.output.displayMode, bmdVideoOutputFlagDefault) != S_OK)
{
error = "DeckLink output setup failed while enabling video output.";
return false;
}
if (output->QueryInterface(IID_IDeckLinkKeyer, (void**)&keyer) == S_OK && keyer != NULL)
mState.keyerInterfaceAvailable = true;
mState.capabilities.keyerInterfaceAvailable = true;
if (externalKeyingEnabled)
if (mState.externalKeyingRequested)
{
if (!mState.supportsExternalKeying)
if (!mState.capabilities.supportsExternalKeying)
{
mState.statusMessage = "External keying was requested, but the selected DeckLink output does not report external keying support.";
}
else if (!mState.keyerInterfaceAvailable)
else if (!mState.capabilities.keyerInterfaceAvailable)
{
mState.statusMessage = "External keying was requested, but the selected DeckLink output does not expose the IDeckLinkKeyer interface.";
}
@@ -374,7 +379,7 @@ bool DeckLinkSession::ConfigureOutput(OutputFrameCallback callback, const VideoF
mState.statusMessage = "External keying is active on the selected DeckLink output.";
}
}
else if (mState.supportsExternalKeying)
else if (mState.capabilities.supportsExternalKeying)
{
mState.statusMessage = "Selected DeckLink output supports external keying. Set enableExternalKeying to true in runtime-host.json to request it.";
}