public Preferences(string sData)
{
XmlDocument cXmlDocument = new XmlDocument();
cXmlDocument.LoadXml(sData);
XmlNode cXmlNode = cXmlDocument.NodeGet("data");
XmlNode cNodeChild = cXmlNode.NodeGet("playlist");
_bCuda = cNodeChild.AttributeGet<bool>("cuda");
_nLayer = cNodeChild.AttributeGet<ushort>("layer");
cNodeChild = cNodeChild.NodeGet("area");
_stArea = new Area(
cNodeChild.AttributeGet<short>("left"),
cNodeChild.AttributeGet<short>("top"),
cNodeChild.AttributeGet<ushort>("width"),
cNodeChild.AttributeGet<ushort>("height")
);
}
internal EffectVideo(EffectType eType)
: base(eType)
{
try
{
bCUDA = Preferences.bCUDA;
nFrameCurrent = 0;
stArea = new Area(0, 0, 0, 0);
nMaxOpacity = 255;
nInDissolve = 0;
nOutDissolve = 0;
}
catch
{
Fail();
throw;
}
}
public Preferences(string sData)
{
XmlDocument cXmlDocument = new XmlDocument();
cXmlDocument.LoadXml(sData);
XmlNode cXmlNode = cXmlDocument.NodeGet("data");
sRequest = cXmlNode.AttributeValueGet("request");
nTemplate = cXmlNode.AttributeGet<byte>("template");
sValue = cXmlNode.AttributeValueGet("value", false);
_nCheckInterval = cXmlNode.AttributeGet<int>("interval");
XmlNode cNodeChild = cXmlNode.NodeGet("roll");
_eDirection = cNodeChild.AttributeGet<btl.Roll.Direction>("direction");
_nSpeed = cNodeChild.AttributeGet<float>("speed");
_bRollCuda = cNodeChild.AttributeGet<bool>("cuda");
_nLayer = cNodeChild.AttributeGet<ushort>("layer");
_nQueueLength = cNodeChild.AttributeGet<byte>("queue");
if (int.MaxValue == (_nPause = cNodeChild.AttributeGet<int>("pause", false)))
_nPause = 0;
cNodeChild = cNodeChild.NodeGet("area");
_stArea = new Area(
cNodeChild.AttributeGet<short>("left"),
cNodeChild.AttributeGet<short>("top"),
cNodeChild.AttributeGet<ushort>("width"),
cNodeChild.AttributeGet<ushort>("height")
);
_aItems = cXmlNode.NodesGet("item").Select(o => Item.Parse(o)).ToList();
}
public Baetylus()
{
(new Logger()).WriteDebug3("in");
lock (_cSyncRoot)
{
if (1 > _nReferencesQty)
{
(new Logger()).WriteDebug4("baetylus:constructor:init");
_aqContainerActions = new Queue<Dictionary<IEffect, ContainerAction>>();
_aEffects = new List<IEffect>();
_stFullFrameArea = cBoard.stArea;
_aqBufferFrame = new ThreadBufferQueue<Device.Frame>(Preferences.nQueueBaetylusLength, true, false);
_aqPixelsMapsDisposed = new Queue<PixelsMap>();
_bNeedEffectsReorder = false;
_cThreadWorker = new System.Threading.Thread(Worker);
_cThreadWorker.IsBackground = true;
_cThreadWorker.Priority = System.Threading.ThreadPriority.AboveNormal;
_cThreadWorker.Start();
_bDoWritingFrames = false;
_aqWritingFrames = new Queue<byte[]>();
_cThreadWritingFramesWorker = new System.Threading.Thread(WritingFramesWorker);
_cThreadWritingFramesWorker.IsBackground = true;
_cThreadWritingFramesWorker.Priority = System.Threading.ThreadPriority.Normal;
_cThreadWritingFramesWorker.Start();
cBoard.NextFrame += new NextFrameCallback(OnNextFrame);
cBoard.TurnOn();
}
_nReferencesQty++;
}
(new Logger()).WriteDebug4("return [refqty:" + _nReferencesQty + "]");
}
private DisCom.LayerInfo Intersect(Area stBase) //v: Даёт размерность, ширину, высоту кропа и относительные координаты его лев верх угла от бэка и от фора и ширину кропа.
{ //в целях оптимизации убраны все проверки, т.к. они уже были в FramesMerge...
DisCom.LayerInfo cRetVal = new DisCom.LayerInfo();
cRetVal.nShiftPosition = _nShiftPosition;
cRetVal.bShiftVertical = _bShiftVertical;
Area stCrop = _stArea.CropOnBase(stBase);
cRetVal.nWidth = stArea.nWidth;
cRetVal.nCropWidth = stCrop.nWidth;
cRetVal.nCropHeight = stCrop.nHeight;
cRetVal.nCropLeft = stCrop.nLeft - stBase.nLeft; //отступ кропа слева COL
int nBGIndxStart = (stCrop.nTop - stBase.nTop) * stBase.nWidth + cRetVal.nCropLeft; //BGIndxStart=COT*BW+COL;
//формула вычисления FI=BI+M*(FW-BW)-(FOT*FW+FOL); M=(int)(BI/BW);
cRetVal.nWidthDiff = _stArea.nWidth - stBase.nWidth; //5/ константа 1 - (FW-BW)
cRetVal.nForegroundStart = (_stArea.nTop - stBase.nTop) * _stArea.nWidth + _stArea.nLeft - stBase.nLeft; //6/ константа 2 - (FOT*FW+FOL)
cRetVal.nBackgroundStart = nBGIndxStart; //7/ начальный индекс по BG
cRetVal.nBackgroundStop = nBGIndxStart + (stCrop.nHeight - 1) * stBase.nWidth + stCrop.nWidth - 1;//8/ конечный индекс по BG
cRetVal.nCropRight = cRetVal.nCropLeft + stCrop.nWidth - 1; //10/ константа COL+CW-1
cRetVal.nAlphaConstant = nAlphaConstant; //11/ константная альфа
cRetVal.nAlphaType = (byte)eAlpha;
cRetVal.nShiftTotal = _nShiftTotal;
cRetVal.nTop = stArea.nTop;
cRetVal.nLeft = stArea.nLeft;
if (null != _cShiftOffset)
{
cRetVal.nOffsetLeft = _cShiftOffset.nLeft;
cRetVal.nOffsetTop = _cShiftOffset.nTop & 1;
if (stBase.nTop > _stArea.nTop && ((stBase.nTop - _stArea.nTop) & 1) == 1)
cRetVal.nOffsetTop = ~cRetVal.nOffsetTop;
}
return cRetVal;
}
public Area CropOnBase(Area stBase) //Valikoo. Возвращает обрезанную область если она вышла за рамки образца stBase
{
Area stRetVal = new Area();
stRetVal.nLeft = stBase.nLeft > nLeft ? stBase.nLeft : nLeft;
stRetVal.nTop = stBase.nTop > nTop ? stBase.nTop : nTop;
stRetVal.nRight = stBase.nRight > nRight ? nRight : stBase.nRight;
stRetVal.nBottom = stBase.nBottom > nBottom ? nBottom : stBase.nBottom;
if (0 == stRetVal.nWidth || 0 == stRetVal.nHeight)
{
stRetVal.nWidth = 0;
stRetVal.nHeight = 0;
}
return stRetVal;
}
public Composite(ushort nDimensionTargetMax, Type enType)
:this()
{
switch (enType)
{
case Type.Vertical:
_nWidth = nDimensionTargetMax;
_aLines = new List<Line>();
enType = Type.Vertical;
break;
case Type.Horizontal: //это конструктор горизонтальный. TODO. ДОДЕЛАТЬ ДОБАВЛЕНИЕ !!!!!!!!!
_nHeight = nDimensionTargetMax;
_aColumns = new List<Column>();
enType = Type.Horizontal;
break;
case Type.Fixed:
_nHeight = _nWidth = nDimensionTargetMax;
stArea = new Area(0, 0, _nWidth, _nHeight);
enType = Type.Fixed;
break;
default:
break;
}
}
override public void Prepare()
{
try
{
if (EffectStatus.Idle != ((IEffect)this).eStatus)
return;
if (bResize && Area.stEmpty != stArea)
{
stArea = AreaResize(_cFile.stDimensions.Width, _cFile.stDimensions.Height, stArea.nWidth, stArea.nHeight, nPixelAspectRatio);
_cFile.stDimensionsResized = new Size(stArea.nWidth, stArea.nHeight);
}
else if (bResize && Area.stEmpty == stArea)
{
stArea = AreaResize(_cFile.stDimensions.Width, _cFile.stDimensions.Height, _cFile.stDimensions.Width, _cFile.stDimensions.Height, nPixelAspectRatio);
_cFile.stDimensionsResized = new Size(stArea.nWidth, stArea.nHeight);
stArea = new Area(0, 0, stArea.nWidth, stArea.nHeight);
}
else
stArea = new Area(stArea.nLeft, stArea.nTop, (ushort)_cFile.stDimensions.Width, (ushort)_cFile.stDimensions.Height);
if (null == _cPixelsMap)
{
_cFile.Open();
if (bKeepAlive)
_cFile.Cache();
//#if DEBUG
else
_cFile.DynamicQueueStart(); //DNF
//#endif
_cPixelsMap = new PixelsMap(bCUDA, new Area(0, 0, stArea.nWidth, stArea.nHeight), PixelsMap.Format.ARGB32);
_cPixelsMap.bKeepAlive = true;
if (1 > _cPixelsMap.nLength)
(new Logger()).WriteNotice("1 > _cPixelMap.nLength. animation.prepare");
_cPixelsMap.Allocate();
nDuration = nFramesTotal;
}
else
{
nFrameCurrentPhysical = 0; //это если препаре делают после стопа.
nLoopCurrent = 0;
}
base.Prepare();
}
catch (Exception ex)
{
(new Logger()).WriteError(ex);
(new Logger()).WriteWarning("[bKeepAlive = " + (null == _cPixelsMap ? "null" : "" + _cPixelsMap.bKeepAlive) + "][nDuration = " + nDuration + "]");
throw;
}
}
public PixelsMap(Area stArea, Format ePixelFormat)
: this(true, stArea, ePixelFormat)
{
}
private DisCom.LayerInfo Intersect(Area stBase) //v: Даёт размерность, ширину, высоту кропа и относительные координаты его лев верх угла от бэка и от фора и ширину кропа.
{ //в целях оптимизации убраны все проверки, т.к. они уже были в FramesMerge...
DisCom.LayerInfo cRetVal = new DisCom.LayerInfo();
Area stCrop = _stArea.CropOnBase(stBase); // если кроп нулевой, то w == h == 0
if (stCrop.nWidth == 0) //не пересеклись
{
cRetVal.nCropTopLineInBG = -1;
cRetVal.nCropBottomLineInBG = -1;
}
else
{
cRetVal.nWidth_4 = 4 * stArea.nWidth;
cRetVal.nCropWidth_4 = 4 * stCrop.nWidth;
int nCropLeft = stCrop.nLeft - stBase.nLeft; //отступ кропа слева COL
cRetVal.nCropLeft_4 = 4 * nCropLeft;
int nBGIndxStart = (stCrop.nTop - stBase.nTop) * stBase.nWidth + nCropLeft; //BGIndxStart=COT*BW+COL; начальный индекс по бг
//формула вычисления FI=BI+M*(FW-BW)-(FOT*FW+FOL); M=(int)(BI/BW);
cRetVal.nAlphaConstant = nAlphaConstant; //11/ константная альфа
cRetVal.nAlphaType = (byte)eAlpha;
cRetVal.nTop = stArea.nTop;
cRetVal.nLeft_4 = 4 * stArea.nLeft;
cRetVal.nCropTopLineInBG = nBGIndxStart / stBase.nWidth;
cRetVal.nCropBottomLineInBG = cRetVal.nCropTopLineInBG + stCrop.nHeight - 1;
int nFloorX = (int)Math.Floor(_stPosition.X);
int nFloorY = (int)Math.Floor(_stPosition.Y);
float nShift = _stPosition.X - nFloorX; // т.е. всегда теперь 0 <= S < 1
if ((cRetVal.nShiftPositionByteX = (byte)Math.Abs(255 * nShift)) == 255)
{
cRetVal.nShiftPositionByteX = 254;
}
nShift = _stPosition.Y - nFloorY;
if ((cRetVal.nShiftPositionByteY = (byte)Math.Abs(255 * nShift)) == 255)
{
cRetVal.nShiftPositionByteY = 254;
}
cRetVal.nShiftTotalX = _nShiftTotalX;
if (0 < Math.Abs(_nShiftTotalX)) // то делаем поля
{
int nFloorHalfX = (int)Math.Floor(_stHalfPosition.X);
int nFloorHalfY = (int)Math.Floor(_stHalfPosition.Y);
nShift = _stHalfPosition.X - nFloorHalfX;
cRetVal.nHalfPathShiftPositionByteX = nShift == 0 ? (byte)0 : (byte)Math.Abs(255 * nShift);
nShift = _stHalfPosition.Y - nFloorHalfY;
cRetVal.nHalfPathShiftPositionByteY = nShift == 0 ? (byte)0 : (byte)Math.Abs(255 * nShift); // (для диагональных смещений с полями)
// знак узнаем из nDeltaPxX_4
cRetVal.nHalfDeltaPxX_4 = (nFloorX - nFloorHalfX) * 4;
cRetVal.nHalfDeltaPxY_4 = (nFloorY - nFloorHalfY) * 4;
if (null != _cShiftOffset)
{
cRetVal.nOffsetTop = _cShiftOffset.nTop & 1;
if (stBase.nTop > _stArea.nTop && ((stBase.nTop - _stArea.nTop) & 1) == 1)
{
cRetVal.nOffsetTop = ~cRetVal.nOffsetTop;
}
}
}
}
return(cRetVal);
}
private Area AreaResize(int nImageWidth, int nImageHeight, int nCanvasWidth, int nCanvasHeight, float nPixelAspectRatio)
{
Area stRetVal;
nImageWidth = (int)Math.Round(((double)nImageWidth) * nPixelAspectRatio, 0);
int nCrop;
if (nImageWidth * nCanvasHeight > nImageHeight * nCanvasWidth)
{
nCrop = (int)Math.Round((double)(nImageHeight * nCanvasWidth) / (double)nImageWidth, 0);
stRetVal = new Area(0, (short)Math.Round((double)(nCanvasHeight - nCrop) / 2, 0), (ushort)nCanvasWidth, (ushort)nCrop);
_cFile.stDimensionsResized = new Size(nCanvasWidth, nCrop);
}
else
{
nCrop = (int)Math.Round((double)(nImageWidth * nCanvasHeight) / (double)nImageHeight, 0);
stRetVal = new Area((short)Math.Round((double)(nCanvasWidth - nCrop) / 2, 0), 0, (ushort)nCrop, (ushort)nCanvasHeight);
_cFile.stDimensionsResized = new Size(nCrop, nCanvasHeight);
}
return stRetVal;
}
public PixelsMap(MergingMethod stMergingMethod, Area stArea, Format ePixelFormat)
: this(stMergingMethod, stArea, ePixelFormat, false)
{
}
override public void Prepare()
{
try
{
float nK;
ushort nNewSize;
short nHalfDelta;
(new Logger()).WriteDebug2("video prepare [old area:" + stArea.nWidth + " " + stArea.nHeight + "]");
(new Logger()).WriteDebug2("video prepare [file area:" + _cFile.stArea.nWidth + " " + _cFile.stArea.nHeight + "]");
(new Logger()).WriteDebug2("video prepare [file w h:" + _cFile.nWidthOriginal + " " + _cFile.nHeightOriginal + "]");
//DNF
FitIn eFitIn = FitIn.Crop; // типа из настроек пришло ))
if (_cFile.nHeightOriginal != stArea.nHeight || _cFile.nWidthOriginal != stArea.nWidth) // если видео не совпало с контейнером
{
if (_cFile.nHeightOriginal == 576 && _cFile.nWidthOriginal == 720) // if video format is PAL = 768x576 in square pixels рассмотрим частный случай, т.к. он восновном и будет только.
{
if (eFitIn == FitIn.Crop)
{
nK = (float)stArea.nWidth / 768; // коэффициент (делаем правильно именно дл¤ пала с учетом аспекта пиксел¤ у пала)
nNewSize = (ushort)Math.Round(nK * _cFile.nHeightOriginal); // нова¤ высота при раст¤гивании по ширине
nHalfDelta = (short)Math.Round(((float)(stArea.nHeight - nNewSize) / 2));
stArea = new Area(0, nHalfDelta, stArea.nWidth, nNewSize);
//stArea = new Area(0, -180, 1920, 1440); должно быть так, если правильно посчитано будет...
}
}
else // if video is not container's size and not PAL
{
if (eFitIn == FitIn.Crop)
{
if (_cFile.nWidthOriginal > _cFile.nHeightOriginal)
{
nK = (float)stArea.nWidth / _cFile.nWidthOriginal; // коэффициент
nNewSize = (ushort)Math.Round(nK * _cFile.nHeightOriginal); // нова¤ высота при раст¤гивании по ширине
nHalfDelta = (short)Math.Round((float)(stArea.nHeight - nNewSize) / 2);
stArea = new Area(0, nHalfDelta, stArea.nWidth, nNewSize);
}
else
{
nK = (float)stArea.nHeight / _cFile.nHeightOriginal; // коэффициент
nNewSize = (ushort)Math.Round(nK * _cFile.nWidthOriginal); // нова¤ высота при раст¤гивании по ширине
nHalfDelta = (short)Math.Round((float)(stArea.nWidth - nNewSize) / 2);
stArea = new Area(nHalfDelta, 0, nNewSize, stArea.nHeight);
}
}
}
}
//DNF
(new Logger()).WriteDebug2("video prepare [new area:" + stArea.nWidth + " " + stArea.nHeight + "]");
_cFile.stArea = stArea;
_cFile.Open(bCUDA);
if (ulong.MaxValue == nDuration)
nDuration = _cFile.nFramesTotal - nFrameStart;
(new Logger()).WriteDebug2("video prepared [video_hc:" + GetHashCode() + "][file_hc:" + _cFile.GetHashCode() + "]");
base.Prepare();
}
catch
{
Fail();
throw;
}
}
static public Area SumOfAreas(Area a1, Area a2)
{
Area aRetVal = new Area();
aRetVal.nLeft = 0; // a1.nLeft < a2.nLeft ? a1.nLeft : a2.nLeft;
aRetVal.nTop = 0; // a1.nTop < a2.nTop ? a1.nTop : a2.nTop;
aRetVal.nWidth = a1.nRight < a2.nRight ? (ushort)(a2.nRight - aRetVal.nLeft + 1) : (ushort)(a1.nRight - aRetVal.nLeft + 1);
aRetVal.nWidth += a1.nLeft < 0 || a2.nLeft < 0 ? (ushort)0 : (ushort)Math.Min(a1.nLeft, a2.nLeft);
aRetVal.nHeight = a1.nBottom < a2.nBottom ? (ushort)(a2.nBottom - aRetVal.nTop + 1) : (ushort)(a1.nBottom - aRetVal.nTop + 1);
aRetVal.nHeight += a1.nTop <= 0 || a2.nTop <= 0 ? (ushort)0 : (ushort)Math.Min(a1.nTop, a2.nTop);
return aRetVal;
}
protected void AreaSet(Area stArea)
{
if (null != _cEffect)
((shared.EffectVideo)_cEffect).stArea = stArea;
this.stArea = stArea;
}
public PixelsMap(bool bIsCUDA, Area stArea, Format ePixelFormat)
{
_dt = DateTime.Now;
_bTemp = false;
_bProcessing = false;
_bDisposed = false;
_cSyncRoot = new object();
if (bCUDA = bIsCUDA && 1 > Preferences.nCUDAVersion)
throw new Exception("There is no CUDA version in preferences");
#else
public PixelsMap()
:this(false, new Area(0, 0, 1, 1), Format.BGRA32)
{
}
public EffectVideo()
: base()
{
cDock = new Dock(Dock.Corner.upper_left, new Dock.Offset(0, 0));
bOpacity = true;
stArea = Area.stEmpty;
}
public PixelsMap(bool bCUDA, Area stArea, Format ePixelFormat)
{
#endif
_nID = 0;
nAlphaConstant = byte.MaxValue;
bBackgroundClear = false;
bKeepAlive = false;
_cException = null;
_nBytesQty = 0;
_ePixelFormat = ePixelFormat;
_stArea = stArea;
_nBytesQty = (uint)(_stArea.nWidth * _stArea.nHeight * Math.Abs((int)((int)ePixelFormat / 100)) / 8);
_nShiftPosition = 0;
_cSyncRoot = new object();
}
public Area Dock(Area stBase, Dock cDock)
{
Area stRetVal = this;
if (null != cDock)
{
switch (cDock.eCorner)
{
case helpers.Dock.Corner.upper_left:
stRetVal.nLeft = 0;
stRetVal.nTop = 0;
break;
case helpers.Dock.Corner.upper_right:
stRetVal.nLeft = (short)(stBase.nWidth - nWidth);
stRetVal.nTop = 0;
break;
case helpers.Dock.Corner.bottom_left:
stRetVal.nLeft = 0;
stRetVal.nTop = (short)(stBase.nHeight - nHeight);
break;
case helpers.Dock.Corner.bottom_right:
stRetVal.nLeft = (short)(stBase.nWidth - nWidth);
stRetVal.nTop = (short)(stBase.nHeight - nHeight);
break;
case helpers.Dock.Corner.center:
stRetVal.nLeft = (short)Math.Round((float)stBase.nWidth / 2 - (float)nWidth / 2);
stRetVal.nTop = (short)Math.Round((float)stBase.nHeight / 2 - (float)nHeight / 2);
break;
}
stRetVal.nLeft += cDock.cOffset.nLeft;
stRetVal.nTop += cDock.cOffset.nTop;
}
return stRetVal;
}
static public PixelsMap Merge(Area stBase, List<PixelsMap> aPMs)
{
if (1 == aPMs.Count && 0 == aPMs[0]._nShiftPosition && stBase == aPMs[0].stArea && byte.MaxValue == aPMs[0].nAlphaConstant)
return aPMs[0];
#if CUDA
PixelsMap cRetVal = new PixelsMap(aPMs[0].bCUDA, stBase, Format.ARGB32);
cRetVal._bTemp = true;
Command cCmd = null;
if (aPMs[0].bCUDA)
{
//cRetVal._nBytesQty = (uint)(stBase.nWidth * stBase.nHeight * 4); //UNDONE нужно определять кол-во байт по ePixelFormat //FIXED
cCmd = new Command(Command.ID.Allocate, cRetVal);
_aqCommands.Enqueue(cCmd);
}
else
cRetVal.Allocate();
#else
PixelsMap cRetVal = new PixelsMap(false, stBase, Format.ARGB32);
cRetVal._bTemp = true;
cRetVal.Allocate();
#endif
cRetVal.Merge(aPMs);
return cRetVal;
}
public Composite(ushort nWidth, ushort nHeight) //это конструктор для пустышки или константного размера
: this()
{
stArea = new Area(0, 0, nWidth, nHeight);
_nWidth = nWidth;
_nHeight = nHeight;
_eType = Type.Fixed;
}
private Decklink(IDeckLink cDevice)
{
(new Logger()).WriteDebug3("in");
try
{
nAudioQueueLength = nAudioQueueLengthPrevious = 0;
nBTLAudioQueueLengthPrevious = nBTLVideoQueueLengthPrevious = nVideoQueueLengthPrevious = 0;
_iDLDevice = cDevice;
if(Preferences.bDeviceInput)
_iDLInput = (IDeckLinkInput)_iDLDevice;
else
_iDLOutput = (IDeckLinkOutput)_iDLDevice;
IDeckLinkDisplayModeIterator cDisplayModeIterator;
IDeckLinkDisplayMode cNextDLDisplayMode;
string sDisplayModeName = "";
string sMessage = "decklink supported modes:<br>";
if (Preferences.bDeviceInput)
{
_iDLInputDisplayMode = null;
_iDLInput.GetDisplayModeIterator(out cDisplayModeIterator);
while (true)
{
cDisplayModeIterator.Next(out cNextDLDisplayMode);
if (cNextDLDisplayMode == null)
break;
cNextDLDisplayMode.GetName(out sDisplayModeName);
if (null == _iDLInputDisplayMode && sDisplayModeName.ToLower().Contains(Preferences.sVideoFormat))
{
sMessage += "selected:";
_iDLInputDisplayMode = cNextDLDisplayMode;
}
else
sMessage += "\t";
sMessage += sDisplayModeName + "<br>";
}
(new Logger()).WriteNotice(sMessage);
if (null == _iDLInputDisplayMode)
throw new Exception("can't find " + Preferences.sVideoFormat + " mode within specified device for input");
}
else
{
_nFramesAudioDropped = 0;
_iDLOutputDisplayMode = null;
_iDLOutput.GetDisplayModeIterator(out cDisplayModeIterator);
while (true)
{
cDisplayModeIterator.Next(out cNextDLDisplayMode);
if (cNextDLDisplayMode == null)
break;
cNextDLDisplayMode.GetName(out sDisplayModeName);
if (null == _iDLOutputDisplayMode && sDisplayModeName.ToLower().Contains(Preferences.sVideoFormat))
{
sMessage += "selected:";
_iDLOutputDisplayMode = cNextDLDisplayMode;
}
else
sMessage += "\t";
sMessage += sDisplayModeName + "<br>";
}
(new Logger()).WriteNotice(sMessage);
if (null == _iDLOutputDisplayMode)
throw new Exception("can't find " + Preferences.sVideoFormat + " mode within specified device for output");
stArea = new Area(0, 0, (ushort)_iDLOutputDisplayMode.GetWidth(), (ushort)_iDLOutputDisplayMode.GetHeight());
long nFrameDuration, nFrameTimescale;
_iDLOutputDisplayMode.GetFrameRate(out nFrameDuration, out nFrameTimescale);
_nFPS = (ushort)((nFrameTimescale + (nFrameDuration - 1)) / nFrameDuration); //до ближайшего целого - взято из примера деклинка
_bDoWritingFrames = false;
_aqWritingFrames = new Queue<byte[]>();
_cThreadWritingFramesWorker = new System.Threading.Thread(WritingFramesWorker);
_cThreadWritingFramesWorker.IsBackground = true;
_cThreadWritingFramesWorker.Priority = System.Threading.ThreadPriority.Normal;
_cThreadWritingFramesWorker.Start();
if (Preferences.bAudio)
{
switch (Preferences.nAudioBitDepth)
{
case 32:
_eAudioSampleDepth = _BMDAudioSampleType.bmdAudioSampleType32bitInteger;
break;
case 16:
default:
_eAudioSampleDepth = _BMDAudioSampleType.bmdAudioSampleType16bitInteger;
break;
}
switch (Preferences.nAudioSamplesRate)
{
case 48000:
_eAudioSampleRate = _BMDAudioSampleRate.bmdAudioSampleRate48kHz;
break;
default:
throw new Exception("unsupported audio sample rate [" + Preferences.nAudioSamplesRate + "]");
}
//_pAudioSamplesBuffer = Marshal.AllocCoTaskMem((int)_nAudioFrameSize_InBytes);
_cAudioBuffer = new AudioBuffer();
_nAudioBufferCapacity_InSamples = Preferences.nAudioSamplesPerFrame * Preferences.nQueueDeviceLength;
//for (int nIndx = 0; _nAudioFrameSize_InBytes > nIndx; nIndx++)
// Marshal.WriteByte(_pAudioSamplesBuffer, nIndx, 0);
_nTimescale = (ushort)_eAudioSampleRate;
_nFrameDuration = (ushort)(_nTimescale / _nFPS);
}
if (null != Preferences.cDownStreamKeyer)
_iDeckLinkKeyer = (IDeckLinkKeyer)_iDLDevice;
}
}
catch (Exception ex)
{
(new Logger()).WriteError(ex);
throw;
}
(new Logger()).WriteDebug4("return");
}