hyperion.ng/libsrc/grabber/video/mediafoundation/MFGrabber.cpp
LordGrey 25d79a9f3f
Qt6 support (#1363)
* Initial Qt6 config

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* Update to QT 6.2.0

* Qt 6.2.0 updates

* macOS fix

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* Updates for Windows

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Co-authored-by: Paulchen-Panther <16664240+Paulchen-Panther@users.noreply.github.com>
2021-11-16 18:12:56 +01:00

815 lines
23 KiB
C++

#include "MFSourceReaderCB.h"
#include "grabber/MFGrabber.h"
// Constants
namespace { const bool verbose = false; }
// Need more video properties? Visit https://docs.microsoft.com/en-us/windows/win32/api/strmif/ne-strmif-videoprocampproperty
using VideoProcAmpPropertyMap = QMap<VideoProcAmpProperty, QString>;
inline QMap<VideoProcAmpProperty, QString> initVideoProcAmpPropertyMap()
{
QMap<VideoProcAmpProperty, QString> propertyMap
{
{VideoProcAmp_Brightness, "brightness" },
{VideoProcAmp_Contrast , "contrast" },
{VideoProcAmp_Saturation, "saturation" },
{VideoProcAmp_Hue , "hue" }
};
return propertyMap;
};
Q_GLOBAL_STATIC_WITH_ARGS(VideoProcAmpPropertyMap, _videoProcAmpPropertyMap, (initVideoProcAmpPropertyMap()));
MFGrabber::MFGrabber()
: Grabber("V4L2:MEDIA_FOUNDATION")
, _currentDeviceName("none")
, _newDeviceName("none")
, _hr(S_FALSE)
, _sourceReader(nullptr)
, _sourceReaderCB(nullptr)
, _threadManager(nullptr)
, _pixelFormat(PixelFormat::NO_CHANGE)
, _pixelFormatConfig(PixelFormat::NO_CHANGE)
, _lineLength(-1)
, _frameByteSize(-1)
, _noSignalCounterThreshold(40)
, _noSignalCounter(0)
, _brightness(0)
, _contrast(0)
, _saturation(0)
, _hue(0)
, _currentFrame(0)
, _noSignalThresholdColor(ColorRgb{0,0,0})
, _signalDetectionEnabled(true)
, _noSignalDetected(false)
, _initialized(false)
, _reload(false)
, _x_frac_min(0.25)
, _y_frac_min(0.25)
, _x_frac_max(0.75)
, _y_frac_max(0.75)
{
CoInitializeEx(0, COINIT_MULTITHREADED);
_hr = MFStartup(MF_VERSION, MFSTARTUP_NOSOCKET);
if (FAILED(_hr))
CoUninitialize();
}
MFGrabber::~MFGrabber()
{
uninit();
SAFE_RELEASE(_sourceReader);
if (_sourceReaderCB != nullptr)
while (_sourceReaderCB->isBusy()) {}
SAFE_RELEASE(_sourceReaderCB);
if (_threadManager)
delete _threadManager;
_threadManager = nullptr;
if (SUCCEEDED(_hr) && SUCCEEDED(MFShutdown()))
CoUninitialize();
}
bool MFGrabber::prepare()
{
if (SUCCEEDED(_hr))
{
if (!_sourceReaderCB)
_sourceReaderCB = new SourceReaderCB(this);
if (!_threadManager)
_threadManager = new EncoderThreadManager(this);
return (_sourceReaderCB != nullptr && _threadManager != nullptr);
}
return false;
}
bool MFGrabber::start()
{
if (!_initialized)
{
if (init())
{
connect(_threadManager, &EncoderThreadManager::newFrame, this, &MFGrabber::newThreadFrame);
_threadManager->start();
DebugIf(verbose, _log, "Decoding threads: %d", _threadManager->_threadCount);
start_capturing();
Info(_log, "Started");
return true;
}
else
{
Error(_log, "The Media Foundation Grabber could not be started");
return false;
}
}
else
return true;
}
void MFGrabber::stop()
{
if (_initialized)
{
_initialized = false;
_threadManager->stop();
disconnect(_threadManager, nullptr, nullptr, nullptr);
_sourceReader->Flush(MF_SOURCE_READER_FIRST_VIDEO_STREAM);
SAFE_RELEASE(_sourceReader);
_deviceProperties.clear();
_deviceControls.clear();
Info(_log, "Stopped");
}
}
bool MFGrabber::init()
{
// enumerate the video capture devices on the user's system
enumVideoCaptureDevices();
if (!_initialized && SUCCEEDED(_hr))
{
int deviceIndex = -1;
bool noDeviceName = _currentDeviceName.compare("none", Qt::CaseInsensitive) == 0 || _currentDeviceName.compare("auto", Qt::CaseInsensitive) == 0;
if (noDeviceName)
return false;
if (!_deviceProperties.contains(_currentDeviceName))
{
Debug(_log, "Configured device '%s' is not available.", QSTRING_CSTR(_currentDeviceName));
return false;
}
Debug(_log, "Searching for %s %d x %d @ %d fps (%s)", QSTRING_CSTR(_currentDeviceName), _width, _height,_fps, QSTRING_CSTR(pixelFormatToString(_pixelFormat)));
QList<DeviceProperties> dev = _deviceProperties[_currentDeviceName];
for ( int i = 0; i < dev.count() && deviceIndex < 0; ++i )
{
if (dev[i].width != _width || dev[i].height != _height || dev[i].fps != _fps || dev[i].pf != _pixelFormat)
continue;
else
deviceIndex = i;
}
if (deviceIndex >= 0 && SUCCEEDED(init_device(_currentDeviceName, dev[deviceIndex])))
{
_initialized = true;
_newDeviceName = _currentDeviceName;
}
else
{
Debug(_log, "Configured device '%s' is not available.", QSTRING_CSTR(_currentDeviceName));
return false;
}
}
return _initialized;
}
void MFGrabber::uninit()
{
// stop if the grabber was not stopped
if (_initialized)
{
Debug(_log,"Uninit grabber: %s", QSTRING_CSTR(_newDeviceName));
stop();
}
}
HRESULT MFGrabber::init_device(QString deviceName, DeviceProperties props)
{
PixelFormat pixelformat = GetPixelFormatForGuid(props.guid);
QString error;
IMFMediaSource* device = nullptr;
IMFAttributes* deviceAttributes = nullptr, *sourceReaderAttributes = nullptr;
IMFMediaType* type = nullptr;
HRESULT hr = S_OK;
IAMVideoProcAmp* pProcAmp = nullptr;
Debug(_log, "Init %s, %d x %d @ %d fps (%s)", QSTRING_CSTR(deviceName), props.width, props.height, props.fps, QSTRING_CSTR(pixelFormatToString(pixelformat)));
DebugIf (verbose, _log, "Symbolic link: %s", QSTRING_CSTR(props.symlink));
hr = MFCreateAttributes(&deviceAttributes, 2);
if (FAILED(hr))
{
error = QString("Could not create device attributes (%1)").arg(hr);
goto done;
}
hr = deviceAttributes->SetGUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE, MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID);
if (FAILED(hr))
{
error = QString("SetGUID_MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE (%1)").arg(hr);
goto done;
}
if (FAILED(deviceAttributes->SetString(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_SYMBOLIC_LINK, (LPCWSTR)props.symlink.utf16())))
{
error = QString("IMFAttributes_SetString_MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_SYMBOLIC_LINK (%1)").arg(hr);
goto done;
}
hr = MFCreateDeviceSource(deviceAttributes, &device);
if (FAILED(hr))
{
error = QString("MFCreateDeviceSource (%1)").arg(hr);
goto done;
}
if (!device)
{
error = QString("Could not open device (%1)").arg(hr);
goto done;
}
else
Debug(_log, "Device opened");
if (SUCCEEDED(device->QueryInterface(IID_PPV_ARGS(&pProcAmp))))
{
for (auto control : _deviceControls[deviceName])
{
switch (_videoProcAmpPropertyMap->key(control.property))
{
case VideoProcAmpProperty::VideoProcAmp_Brightness:
if (_brightness >= control.minValue && _brightness <= control.maxValue && _brightness != control.currentValue)
{
Debug(_log,"Set brightness to %i", _brightness);
pProcAmp->Set(VideoProcAmp_Brightness, _brightness, VideoProcAmp_Flags_Manual);
}
break;
case VideoProcAmpProperty::VideoProcAmp_Contrast:
if (_contrast >= control.minValue && _contrast <= control.maxValue && _contrast != control.currentValue)
{
Debug(_log,"Set contrast to %i", _contrast);
pProcAmp->Set(VideoProcAmp_Contrast, _contrast, VideoProcAmp_Flags_Manual);
}
break;
case VideoProcAmpProperty::VideoProcAmp_Saturation:
if (_saturation >= control.minValue && _saturation <= control.maxValue && _saturation != control.currentValue)
{
Debug(_log,"Set saturation to %i", _saturation);
pProcAmp->Set(VideoProcAmp_Saturation, _saturation, VideoProcAmp_Flags_Manual);
}
break;
case VideoProcAmpProperty::VideoProcAmp_Hue:
if (_hue >= control.minValue && _hue <= control.maxValue && _hue != control.currentValue)
{
Debug(_log,"Set hue to %i", _hue);
pProcAmp->Set(VideoProcAmp_Hue, _hue, VideoProcAmp_Flags_Manual);
}
break;
default:
break;
}
}
}
hr = MFCreateAttributes(&sourceReaderAttributes, 1);
if (FAILED(hr))
{
error = QString("Could not create Source Reader attributes (%1)").arg(hr);
goto done;
}
hr = sourceReaderAttributes->SetUnknown(MF_SOURCE_READER_ASYNC_CALLBACK, (IMFSourceReaderCallback *)_sourceReaderCB);
if (FAILED(hr))
{
error = QString("Could not set stream parameter: SetUnknown_MF_SOURCE_READER_ASYNC_CALLBACK (%1)").arg(hr);
hr = E_INVALIDARG;
goto done;
}
hr = MFCreateSourceReaderFromMediaSource(device, sourceReaderAttributes, &_sourceReader);
if (FAILED(hr))
{
error = QString("Could not create the Source Reader (%1)").arg(hr);
goto done;
}
hr = MFCreateMediaType(&type);
if (FAILED(hr))
{
error = QString("Could not create an empty media type (%1)").arg(hr);
goto done;
}
hr = type->SetGUID(MF_MT_MAJOR_TYPE, MFMediaType_Video);
if (FAILED(hr))
{
error = QString("Could not set stream parameter: SetGUID_MF_MT_MAJOR_TYPE (%1)").arg(hr);
goto done;
}
hr = type->SetGUID(MF_MT_SUBTYPE, props.guid);
if (FAILED(hr))
{
error = QString("Could not set stream parameter: SetGUID_MF_MT_SUBTYPE (%1)").arg(hr);
goto done;
}
hr = MFSetAttributeSize(type, MF_MT_FRAME_SIZE, props.width, props.height);
if (FAILED(hr))
{
error = QString("Could not set stream parameter: SMFSetAttributeSize_MF_MT_FRAME_SIZE (%1)").arg(hr);
goto done;
}
hr = MFSetAttributeSize(type, MF_MT_FRAME_RATE, props.numerator, props.denominator);
if (FAILED(hr))
{
error = QString("Could not set stream parameter: MFSetAttributeSize_MF_MT_FRAME_RATE (%1)").arg(hr);
goto done;
}
hr = MFSetAttributeRatio(type, MF_MT_PIXEL_ASPECT_RATIO, 1, 1);
if (FAILED(hr))
{
error = QString("Could not set stream parameter: MFSetAttributeRatio_MF_MT_PIXEL_ASPECT_RATIO (%1)").arg(hr);
goto done;
}
hr = _sourceReaderCB->InitializeVideoEncoder(type, pixelformat);
if (FAILED(hr))
{
error = QString("Failed to initialize the Video Encoder (%1)").arg(hr);
goto done;
}
hr = _sourceReader->SetCurrentMediaType(MF_SOURCE_READER_FIRST_VIDEO_STREAM, nullptr, type);
if (FAILED(hr))
{
error = QString("Failed to set media type on Source Reader (%1)").arg(hr);
}
done:
if (FAILED(hr))
{
emit readError(QSTRING_CSTR(error));
SAFE_RELEASE(_sourceReader);
}
else
{
_pixelFormat = props.pf;
_width = props.width;
_height = props.height;
_frameByteSize = _width * _height * 3;
_lineLength = _width * 3;
}
// Cleanup
SAFE_RELEASE(deviceAttributes);
SAFE_RELEASE(device);
SAFE_RELEASE(pProcAmp);
SAFE_RELEASE(type);
SAFE_RELEASE(sourceReaderAttributes);
return hr;
}
void MFGrabber::enumVideoCaptureDevices()
{
_deviceProperties.clear();
_deviceControls.clear();
IMFAttributes* attr;
if (SUCCEEDED(MFCreateAttributes(&attr, 1)))
{
if (SUCCEEDED(attr->SetGUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE, MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID)))
{
UINT32 count;
IMFActivate** devices;
if (SUCCEEDED(MFEnumDeviceSources(attr, &devices, &count)))
{
DebugIf (verbose, _log, "Detected devices: %u", count);
for (UINT32 i = 0; i < count; i++)
{
UINT32 length;
LPWSTR name;
LPWSTR symlink;
if (SUCCEEDED(devices[i]->GetAllocatedString(MF_DEVSOURCE_ATTRIBUTE_FRIENDLY_NAME, &name, &length)))
{
if (SUCCEEDED(devices[i]->GetAllocatedString(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_SYMBOLIC_LINK, &symlink, &length)))
{
QList<DeviceProperties> devicePropertyList;
QString dev = QString::fromUtf16((const char16_t*)name);
IMFMediaSource *pSource = nullptr;
if (SUCCEEDED(devices[i]->ActivateObject(IID_PPV_ARGS(&pSource))))
{
DebugIf (verbose, _log, "Found capture device: %s", QSTRING_CSTR(dev));
IMFMediaType *pType = nullptr;
IMFSourceReader* reader;
if (SUCCEEDED(MFCreateSourceReaderFromMediaSource(pSource, NULL, &reader)))
{
for (DWORD i = 0; ; i++)
{
if (FAILED(reader->GetNativeMediaType((DWORD)MF_SOURCE_READER_FIRST_VIDEO_STREAM, i, &pType)))
break;
GUID format;
UINT32 width = 0, height = 0, numerator = 0, denominator = 0;
if ( SUCCEEDED(pType->GetGUID(MF_MT_SUBTYPE, &format)) &&
SUCCEEDED(MFGetAttributeSize(pType, MF_MT_FRAME_SIZE, &width, &height)) &&
SUCCEEDED(MFGetAttributeRatio(pType, MF_MT_FRAME_RATE, &numerator, &denominator)))
{
PixelFormat pixelformat = GetPixelFormatForGuid(format);
if (pixelformat != PixelFormat::NO_CHANGE)
{
DeviceProperties properties;
properties.symlink = QString::fromUtf16((const char16_t*)symlink);
properties.width = width;
properties.height = height;
properties.fps = numerator / denominator;
properties.numerator = numerator;
properties.denominator = denominator;
properties.pf = pixelformat;
properties.guid = format;
devicePropertyList.append(properties);
DebugIf (verbose, _log, "%s %d x %d @ %d fps (%s)", QSTRING_CSTR(dev), properties.width, properties.height, properties.fps, QSTRING_CSTR(pixelFormatToString(properties.pf)));
}
}
SAFE_RELEASE(pType);
}
IAMVideoProcAmp *videoProcAmp = nullptr;
if (SUCCEEDED(pSource->QueryInterface(IID_PPV_ARGS(&videoProcAmp))))
{
QList<DeviceControls> deviceControlList;
for (auto it = _videoProcAmpPropertyMap->begin(); it != _videoProcAmpPropertyMap->end(); it++)
{
long minVal, maxVal, stepVal, defaultVal, flag;
if (SUCCEEDED(videoProcAmp->GetRange(it.key(), &minVal, &maxVal, &stepVal, &defaultVal, &flag)))
{
if (flag & VideoProcAmp_Flags_Manual)
{
DeviceControls control;
control.property = it.value();
control.minValue = minVal;
control.maxValue = maxVal;
control.step = stepVal;
control.def = defaultVal;
long currentVal;
if (SUCCEEDED(videoProcAmp->Get(it.key(), &currentVal, &flag)))
{
control.currentValue = currentVal;
DebugIf(verbose, _log, "%s: min=%i, max=%i, step=%i, default=%i, current=%i", QSTRING_CSTR(it.value()), minVal, maxVal, stepVal, defaultVal, currentVal);
}
else
break;
deviceControlList.append(control);
}
}
}
if (!deviceControlList.isEmpty())
_deviceControls.insert(dev, deviceControlList);
}
SAFE_RELEASE(videoProcAmp);
SAFE_RELEASE(reader);
}
SAFE_RELEASE(pSource);
}
if (!devicePropertyList.isEmpty())
_deviceProperties.insert(dev, devicePropertyList);
}
CoTaskMemFree(symlink);
}
CoTaskMemFree(name);
SAFE_RELEASE(devices[i]);
}
CoTaskMemFree(devices);
}
SAFE_RELEASE(attr);
}
}
}
void MFGrabber::start_capturing()
{
if (_initialized && _sourceReader && _threadManager)
{
HRESULT hr = _sourceReader->ReadSample(MF_SOURCE_READER_FIRST_VIDEO_STREAM, 0, NULL, NULL, NULL, NULL);
if (!SUCCEEDED(hr))
{
Error(_log, "ReadSample (%i)", hr);
}
}
}
void MFGrabber::process_image(const void *frameImageBuffer, int size)
{
int processFrameIndex = _currentFrame++;
// frame skipping
if ((processFrameIndex % (_fpsSoftwareDecimation + 1) != 0) && (_fpsSoftwareDecimation > 0))
return;
// We do want a new frame...
if (size < _frameByteSize && _pixelFormat != PixelFormat::MJPEG)
Error(_log, "Frame too small: %d != %d", size, _frameByteSize);
else if (_threadManager != nullptr)
{
for (int i = 0; i < _threadManager->_threadCount; i++)
{
if (!_threadManager->_threads[i]->isBusy())
{
_threadManager->_threads[i]->setup(_pixelFormat, (uint8_t*)frameImageBuffer, size, _width, _height, _lineLength, _cropLeft, _cropTop, _cropBottom, _cropRight, _videoMode, _flipMode, _pixelDecimation);
_threadManager->_threads[i]->process();
break;
}
}
}
}
void MFGrabber::receive_image(const void *frameImageBuffer, int size)
{
process_image(frameImageBuffer, size);
start_capturing();
}
void MFGrabber::newThreadFrame(Image<ColorRgb> image)
{
if (_signalDetectionEnabled)
{
// check signal (only in center of the resulting image, because some grabbers have noise values along the borders)
bool noSignal = true;
// top left
unsigned xOffset = image.width() * _x_frac_min;
unsigned yOffset = image.height() * _y_frac_min;
// bottom right
unsigned xMax = image.width() * _x_frac_max;
unsigned yMax = image.height() * _y_frac_max;
for (unsigned x = xOffset; noSignal && x < xMax; ++x)
for (unsigned y = yOffset; noSignal && y < yMax; ++y)
noSignal &= (ColorRgb&)image(x, y) <= _noSignalThresholdColor;
if (noSignal)
++_noSignalCounter;
else
{
if (_noSignalCounter >= _noSignalCounterThreshold)
{
_noSignalDetected = true;
Info(_log, "Signal detected");
}
_noSignalCounter = 0;
}
if ( _noSignalCounter < _noSignalCounterThreshold)
{
emit newFrame(image);
}
else if (_noSignalCounter == _noSignalCounterThreshold)
{
_noSignalDetected = false;
Info(_log, "Signal lost");
}
}
else
emit newFrame(image);
}
void MFGrabber::setDevice(const QString& device)
{
if (_currentDeviceName != device)
{
_currentDeviceName = device;
_reload = true;
}
}
bool MFGrabber::setInput(int input)
{
if (Grabber::setInput(input))
{
_reload = true;
return true;
}
return false;
}
bool MFGrabber::setWidthHeight(int width, int height)
{
if (Grabber::setWidthHeight(width, height))
{
_reload = true;
return true;
}
return false;
}
void MFGrabber::setEncoding(QString enc)
{
if (_pixelFormatConfig != parsePixelFormat(enc))
{
_pixelFormatConfig = parsePixelFormat(enc);
if (_initialized)
{
Debug(_log,"Set hardware encoding to: %s", QSTRING_CSTR(enc.toUpper()));
_reload = true;
}
else
_pixelFormat = _pixelFormatConfig;
}
}
void MFGrabber::setBrightnessContrastSaturationHue(int brightness, int contrast, int saturation, int hue)
{
if (_brightness != brightness || _contrast != contrast || _saturation != saturation || _hue != hue)
{
_brightness = brightness;
_contrast = contrast;
_saturation = saturation;
_hue = hue;
_reload = true;
}
}
void MFGrabber::setSignalThreshold(double redSignalThreshold, double greenSignalThreshold, double blueSignalThreshold, int noSignalCounterThreshold)
{
_noSignalThresholdColor.red = uint8_t(255*redSignalThreshold);
_noSignalThresholdColor.green = uint8_t(255*greenSignalThreshold);
_noSignalThresholdColor.blue = uint8_t(255*blueSignalThreshold);
_noSignalCounterThreshold = qMax(1, noSignalCounterThreshold);
if (_signalDetectionEnabled)
Info(_log, "Signal threshold set to: {%d, %d, %d} and frames: %d", _noSignalThresholdColor.red, _noSignalThresholdColor.green, _noSignalThresholdColor.blue, _noSignalCounterThreshold );
}
void MFGrabber::setSignalDetectionOffset(double horizontalMin, double verticalMin, double horizontalMax, double verticalMax)
{
// rainbow 16 stripes 0.47 0.2 0.49 0.8
// unicolor: 0.25 0.25 0.75 0.75
_x_frac_min = horizontalMin;
_y_frac_min = verticalMin;
_x_frac_max = horizontalMax;
_y_frac_max = verticalMax;
if (_signalDetectionEnabled)
Info(_log, "Signal detection area set to: %f,%f x %f,%f", _x_frac_min, _y_frac_min, _x_frac_max, _y_frac_max );
}
void MFGrabber::setSignalDetectionEnable(bool enable)
{
if (_signalDetectionEnabled != enable)
{
_signalDetectionEnabled = enable;
if (_initialized)
Info(_log, "Signal detection is now %s", enable ? "enabled" : "disabled");
}
}
bool MFGrabber::reload(bool force)
{
if (_reload || force)
{
if (_sourceReader)
{
Info(_log,"Reloading Media Foundation Grabber");
uninit();
_pixelFormat = _pixelFormatConfig;
_newDeviceName = _currentDeviceName;
}
_reload = false;
return prepare() && start();
}
return false;
}
QJsonArray MFGrabber::discover(const QJsonObject& params)
{
DebugIf (verbose, _log, "params: [%s]", QString(QJsonDocument(params).toJson(QJsonDocument::Compact)).toUtf8().constData());
enumVideoCaptureDevices();
QJsonArray inputsDiscovered;
for (auto it = _deviceProperties.begin(); it != _deviceProperties.end(); ++it)
{
QJsonObject device, in;
QJsonArray video_inputs, formats;
device["device"] = it.key();
device["device_name"] = it.key();
device["type"] = "v4l2";
in["name"] = "";
in["inputIdx"] = 0;
QStringList encodingFormats = QStringList();
for (int i = 0; i < _deviceProperties[it.key()].count(); ++i )
if (!encodingFormats.contains(pixelFormatToString(_deviceProperties[it.key()][i].pf), Qt::CaseInsensitive))
encodingFormats << pixelFormatToString(_deviceProperties[it.key()][i].pf).toLower();
for (auto encodingFormat : encodingFormats)
{
QJsonObject format;
QJsonArray resolutionArray;
format["format"] = encodingFormat;
QMultiMap<int, int> deviceResolutions = QMultiMap<int, int>();
for (int i = 0; i < _deviceProperties[it.key()].count(); ++i )
if (!deviceResolutions.contains(_deviceProperties[it.key()][i].width, _deviceProperties[it.key()][i].height) && _deviceProperties[it.key()][i].pf == parsePixelFormat(encodingFormat))
deviceResolutions.insert(_deviceProperties[it.key()][i].width, _deviceProperties[it.key()][i].height);
for (auto width_height = deviceResolutions.begin(); width_height != deviceResolutions.end(); width_height++)
{
QJsonObject resolution;
QJsonArray fps;
resolution["width"] = width_height.key();
resolution["height"] = width_height.value();
QIntList framerates = QIntList();
for (int i = 0; i < _deviceProperties[it.key()].count(); ++i )
{
int fps = _deviceProperties[it.key()][i].numerator / _deviceProperties[it.key()][i].denominator;
if (!framerates.contains(fps) && _deviceProperties[it.key()][i].pf == parsePixelFormat(encodingFormat) && _deviceProperties[it.key()][i].width == width_height.key() && _deviceProperties[it.key()][i].height == width_height.value())
framerates << fps;
}
for (auto framerate : framerates)
fps.append(framerate);
resolution["fps"] = fps;
resolutionArray.append(resolution);
}
format["resolutions"] = resolutionArray;
formats.append(format);
}
in["formats"] = formats;
video_inputs.append(in);
device["video_inputs"] = video_inputs;
QJsonObject controls, controls_default;
for (auto control : _deviceControls[it.key()])
{
QJsonObject property;
property["minValue"] = control.minValue;
property["maxValue"] = control.maxValue;
property["step"] = control.step;
property["current"] = control.currentValue;
controls[control.property] = property;
controls_default[control.property] = control.def;
}
device["properties"] = controls;
QJsonObject defaults, video_inputs_default, format_default, resolution_default;
resolution_default["width"] = 640;
resolution_default["height"] = 480;
resolution_default["fps"] = 25;
format_default["format"] = "bgr24";
format_default["resolution"] = resolution_default;
video_inputs_default["inputIdx"] = 0;
video_inputs_default["standards"] = "PAL";
video_inputs_default["formats"] = format_default;
defaults["video_input"] = video_inputs_default;
defaults["properties"] = controls_default;
device["default"] = defaults;
inputsDiscovered.append(device);
}
_deviceProperties.clear();
_deviceControls.clear();
DebugIf (verbose, _log, "device: [%s]", QString(QJsonDocument(inputsDiscovered).toJson(QJsonDocument::Compact)).toUtf8().constData());
return inputsDiscovered;
}