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| ~PVideoInputDevice () |
| Create a new video input device. More...
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virtual bool | GetDeviceCapabilities (Capabilities *capabilities) const |
| Retrieve a list of Device Capabilities. More...
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virtual PVideoInputControl * | GetVideoInputControls () |
| Get the devices video Input controls By Default return NULL;. More...
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virtual PBoolean | Open (const PString &deviceName, PBoolean startImmediate=true)=0 |
| Open the device given the device name. More...
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virtual PBoolean | Close () |
| Close the device. More...
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virtual PBoolean | CanCaptureVideo () const |
| Is the device a camera, and obtain video. More...
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virtual PBoolean | IsCapturing ()=0 |
| Determine if the video device I/O capture is in progress. More...
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virtual PBoolean | SetNearestFrameSize (unsigned width, unsigned height) |
| Set the nearest available frame size to be used. More...
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virtual PBoolean | GetFrame (PBYTEArray &frame) |
| Grab a frame. More...
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virtual PBoolean | GetFrameData (BYTE *buffer, PINDEX *bytesReturned, unsigned int &flags) |
| Grab a frame, after a delay as specified by the frame rate. More...
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virtual PBoolean | GetFrameData (BYTE *buffer, PINDEX *bytesReturned=NULL)=0 |
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virtual PBoolean | GetFrameDataNoDelay (BYTE *buffer, PINDEX *bytesReturned, unsigned int &flags) |
| Grab a frame. More...
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virtual PBoolean | GetFrameDataNoDelay (BYTE *buffer, PINDEX *bytesReturned=NULL)=0 |
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virtual bool | FlowControl (const void *flowData) |
| Pass data to the inputdevice for flowControl determination. More...
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virtual bool | SetCaptureMode (unsigned mode) |
| Set the capture modes for implementations that support them. More...
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virtual int | GetCaptureMode () const |
| Returns the current capture mode. More...
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virtual | ~PVideoDevice () |
| Delete structures created by PVideoDevice();. More...
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const PString & | GetDeviceName () const |
| Get the device name of the open device. More...
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virtual PStringArray | GetDeviceNames () const =0 |
| Get a list of all of the drivers available. More...
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virtual PBoolean | OpenFull (const OpenArgs &args, PBoolean startImmediate=true) |
| Open the device given the device name. More...
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virtual PBoolean | IsOpen ()=0 |
| Determine if the device is currently open. More...
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virtual PBoolean | Start ()=0 |
| Start the video device I/O capture. More...
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virtual PBoolean | Stop ()=0 |
| Stop the video device I/O capture. More...
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virtual PBoolean | SetVideoFormat (VideoFormat videoFormat) |
| Set the video format to be used. More...
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virtual VideoFormat | GetVideoFormat () const |
| Get the video format being used. More...
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virtual int | GetNumChannels () |
| Get the number of video channels available on the device. More...
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virtual PBoolean | SetChannel (int channelNumber) |
| Set the video channel to be used on the device. More...
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virtual int | GetChannel () const |
| Get the video channel to be used on the device. More...
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virtual PBoolean | SetColourFormatConverter (const PString &colourFormat) |
| Set the colour format to be used, trying converters if available. More...
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virtual PBoolean | GetVFlipState () |
| Get the video conversion vertical flip state. More...
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virtual PBoolean | SetVFlipState (PBoolean newVFlipState) |
| Set the video conversion vertical flip state. More...
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virtual PBoolean | GetFrameSizeLimits (unsigned &minWidth, unsigned &minHeight, unsigned &maxWidth, unsigned &maxHeight) |
| Get the minimum & maximum size of a frame on the device. More...
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virtual PBoolean | SetFrameSizeConverter (unsigned width, unsigned height, ResizeMode resizeMode=eMaxResizeMode) |
| Set the frame size to be used, trying converters if available. More...
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virtual PBoolean | SetFrameSizeConverter (unsigned width, unsigned height, PBoolean) |
| Set the frame size to be used, trying converters if available. More...
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virtual PBoolean | SetFrameSize (unsigned width, unsigned height) |
| Set the frame size to be used. More...
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virtual PBoolean | GetFrameSize (unsigned &width, unsigned &height) const |
| Get the frame size being used. More...
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virtual PINDEX | GetMaxFrameBytes ()=0 |
| Get the maximum frame size in bytes. More...
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int | GetLastError () const |
| Get the last error code. More...
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virtual int | GetBrightness () |
| Get the brightness of the image. More...
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virtual PBoolean | SetBrightness (unsigned newBrightness) |
| Set brightness of the image. More...
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virtual int | GetWhiteness () |
| Get the whiteness of the image. More...
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virtual PBoolean | SetWhiteness (unsigned newWhiteness) |
| Set whiteness of the image. More...
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virtual int | GetColour () |
| Get the colour of the image. More...
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virtual PBoolean | SetColour (unsigned newColour) |
| Set colour of the image. More...
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virtual int | GetContrast () |
| Get the contrast of the image. More...
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virtual PBoolean | SetContrast (unsigned newContrast) |
| Set contrast of the image. More...
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virtual int | GetHue () |
| Get the hue of the image. More...
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virtual PBoolean | SetHue (unsigned newHue) |
| Set hue of the image. More...
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virtual PBoolean | GetParameters (int *whiteness, int *brightness, int *colour, int *contrast, int *hue) |
| Return whiteness, brightness, colour, contrast and hue in one call. More...
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virtual PBoolean | SetVideoChannelFormat (int channelNumber, VideoFormat videoFormat) |
| Set VideoFormat and VideoChannel in one ioctl. More...
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void | SetPreferredColourFormat (const PString &colourFmt) |
| Set preferred native colour format from video capture device. More...
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const PString & | GetPreferredColourFormat () |
| Get preferred native colour format from video capture device. More...
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| PVideoFrameInfo () |
| Construct video frame information. More...
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| PVideoFrameInfo (unsigned frameWidth, unsigned frameHeight, const PString &colourFormat="YUV420P", unsigned frameRate=15, ResizeMode resizeMode=eScale) |
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virtual void | PrintOn (ostream &strm) const |
| Output the contents of the object to the stream. More...
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virtual unsigned | GetFrameWidth () const |
| Get the width of the frame being used. More...
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virtual unsigned | GetFrameHeight () const |
| Get the height of the frame being used. More...
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virtual PBoolean | SetFrameSar (unsigned width, unsigned height) |
| Set the sar size to be used. More...
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virtual PBoolean | GetSarSize (unsigned &width, unsigned &height) const |
| Get the sar size being used. More...
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virtual unsigned | GetSarWidth () const |
| Get the width of the sar being used. More...
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virtual unsigned | GetSarHeight () const |
| Get the height of the sar being used. More...
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virtual PBoolean | SetFrameRate (unsigned rate) |
| Set the video frame rate to be used on the device. More...
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virtual unsigned | GetFrameRate () const |
| Get the video frame rate used on the device. More...
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virtual PBoolean | SetColourFormat (const PString &colourFormat) |
| Set the colour format to be used. More...
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virtual const PString & | GetColourFormat () const |
| Get the colour format to be used. More...
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void | SetResizeMode (ResizeMode mode) |
| Set the resize mode to be used. More...
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ResizeMode | GetResizeMode () const |
| Get the resize mode to be used. More...
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PINDEX | CalculateFrameBytes () const |
| Get the number of bytes of an image, given a particular width, height and colour format. More...
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bool | Parse (const PString &str) |
| Parse a descriptor string for the video format. More...
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virtual | ~PObject () |
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virtual PObject * | Clone () const |
| Create a copy of the class on the heap. More...
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virtual PINDEX | HashFunction () const |
| This function yields a hash value required by the PDictionary class. More...
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virtual const char * | GetClass (unsigned ancestor=0) const |
| Get the current dynamic type of the object instance. More...
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PBoolean | IsClass (const char *cls) const |
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virtual PBoolean | InternalIsDescendant (const char *clsName) const |
| Determine if the dynamic type of the current instance is a descendent of the specified class. More...
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virtual Comparison | Compare (const PObject &obj) const |
| Compare the two objects and return their relative rank. More...
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virtual Comparison | CompareObjectMemoryDirect (const PObject &obj) const |
| Determine the byte wise comparison of two objects. More...
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bool | operator== (const PObject &obj) const |
| Compare the two objects. More...
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bool | operator!= (const PObject &obj) const |
| Compare the two objects. More...
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bool | operator< (const PObject &obj) const |
| Compare the two objects. More...
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bool | operator> (const PObject &obj) const |
| Compare the two objects. More...
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bool | operator<= (const PObject &obj) const |
| Compare the two objects. More...
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bool | operator>= (const PObject &obj) const |
| Compare the two objects. More...
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virtual void | ReadFrom (istream &strm) |
| Input the contents of the object from the stream. More...
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static PStringArray | GetDriverNames (PPluginManager *pluginMgr=NULL) |
| Get the list of available video input drivers (plug-ins) More...
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static PStringArray | GetDriversDeviceNames (const PString &driverName, PPluginManager *pluginMgr=NULL) |
| Get video input devices that correspond to the specified driver name. More...
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static PVideoInputDevice * | CreateDevice (const PString &driverName, PPluginManager *pluginMgr=NULL) |
| Create the video input device that corresponds to the specified driver name. More...
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static PVideoInputDevice * | CreateDeviceByName (const PString &deviceName, const PString &driverName=PString::Empty(), PPluginManager *pluginMgr=NULL) |
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static PVideoInputDevice * | CreateOpenedDevice (const PString &driverName, const PString &deviceName, PBoolean startImmediate=true, PPluginManager *pluginMgr=NULL) |
| Create an opened video input device that corresponds to the specified names. More...
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static PVideoInputDevice * | CreateOpenedDevice (const OpenArgs &args, PBoolean startImmediate=true) |
| Create an opened video output device that corresponds to the specified arguments. More...
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static PBoolean | GetDeviceCapabilities (const PString &deviceName, Capabilities *capabilities, PPluginManager *pluginMgr=NULL) |
| Retrieve a list of Device Capabilities for particular device. More...
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static PBoolean | GetDeviceCapabilities (const PString &deviceName, const PString &driverName, Capabilities *caps, PPluginManager *pluginMgr=NULL) |
| Retrieve a list of Device Capabilities for a particular driver. More...
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static PINDEX | CalculateFrameBytes (unsigned width, unsigned height, const PString &colourFormat) |
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static bool | ParseSize (const PString &str, unsigned &width, unsigned &height) |
| Parse the standard size string names. More...
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static PString | AsString (unsigned width, unsigned height) |
| Get a width/height as a standard size string name. More...
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static PStringArray | GetSizeNames () |
| Get all "known" image size names. More...
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static const char * | Class () |
| Get the name of the class as a C string. More...
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static Comparison | InternalCompareObjectMemoryDirect (const PObject *obj1, const PObject *obj2, PINDEX size) |
| Internal function caled from CompareObjectMemoryDirect() More...
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This class defines a video input device.