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-#ifndef _VIDEOINPUT
-#define _VIDEOINPUT
-
-//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-//THE SOFTWARE.
-
-//////////////////////////////////////////////////////////
-//Written by Theodore Watson - theo.watson@gmail.com //
-//Do whatever you want with this code but if you find //
-//a bug or make an improvement I would love to know! //
-// //
-//Warning This code is experimental //
-//use at your own risk :) //
-//////////////////////////////////////////////////////////
-/////////////////////////////////////////////////////////
-/* Shoutouts
-
-Thanks to:
-
- Dillip Kumar Kara for crossbar code.
- Zachary Lieberman for getting me into this stuff
- and for being so generous with time and code.
- The guys at Potion Design for helping me with VC++
- Josh Fisher for being a serious C++ nerd :)
- Golan Levin for helping me debug the strangest
- and slowest bug in the world!
-
- And all the people using this library who send in
- bugs, suggestions and improvements who keep me working on
- the next version - yeah thanks a lot ;)
-
-*/
-/////////////////////////////////////////////////////////
-
-
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <math.h>
-#include <string.h>
-#include <wchar.h>
-
-//this is for TryEnterCriticalSection
-#ifndef _WIN32_WINNT
- # define _WIN32_WINNT 0x400
-#endif
-#include <windows.h>
-
-
-//Example Usage
-/*
- //create a videoInput object
- videoInput VI;
-
- //Prints out a list of available devices and returns num of devices found
- int numDevices = VI.listDevices();
-
- int device1 = 0; //this could be any deviceID that shows up in listDevices
- int device2 = 1; //this could be any deviceID that shows up in listDevices
-
- //if you want to capture at a different frame rate (default is 30)
- //specify it here, you are not guaranteed to get this fps though.
- //VI.setIdealFramerate(dev, 60);
-
- //setup the first device - there are a number of options:
-
- VI.setupDevice(device1); //setup the first device with the default settings
- //VI.setupDevice(device1, VI_COMPOSITE); //or setup device with specific connection type
- //VI.setupDevice(device1, 320, 240); //or setup device with specified video size
- //VI.setupDevice(device1, 320, 240, VI_COMPOSITE); //or setup device with video size and connection type
-
- //VI.setFormat(device1, VI_NTSC_M); //if your card doesn't remember what format it should be
- //call this with the appropriate format listed above
- //NOTE: must be called after setupDevice!
-
- //optionally setup a second (or third, fourth ...) device - same options as above
- VI.setupDevice(device2);
-
- //As requested width and height can not always be accomodated
- //make sure to check the size once the device is setup
-
- int width = VI.getWidth(device1);
- int height = VI.getHeight(device1);
- int size = VI.getSize(device1);
-
- unsigned char * yourBuffer1 = new unsigned char[size];
- unsigned char * yourBuffer2 = new unsigned char[size];
-
- //to get the data from the device first check if the data is new
- if(VI.isFrameNew(device1)){
- VI.getPixels(device1, yourBuffer1, false, false); //fills pixels as a BGR (for openCV) unsigned char array - no flipping
- VI.getPixels(device1, yourBuffer2, true, true); //fills pixels as a RGB (for openGL) unsigned char array - flipping!
- }
-
- //same applies to device2 etc
-
- //to get a settings dialog for the device
- VI.showSettingsWindow(device1);
-
-
- //Shut down devices properly
- VI.stopDevice(device1);
- VI.stopDevice(device2);
-*/
-
-
-////////////////////////////////////// VARS AND DEFS //////////////////////////////////
-
-
-//STUFF YOU CAN CHANGE
-
-//change for verbose debug info
-static bool verbose = true;
-
-//if you need VI to use multi threaded com
-//#define VI_COM_MULTI_THREADED
-
-//STUFF YOU DON'T CHANGE
-
-//videoInput defines
-#define VI_VERSION 0.1995
-#define VI_MAX_CAMERAS 20
-#define VI_NUM_TYPES 18 //DON'T TOUCH
-#define VI_NUM_FORMATS 18 //DON'T TOUCH
-
-//defines for setPhyCon - tuner is not as well supported as composite and s-video
-#define VI_COMPOSITE 0
-#define VI_S_VIDEO 1
-#define VI_TUNER 2
-#define VI_USB 3
-#define VI_1394 4
-
-//defines for formats
-#define VI_NTSC_M 0
-#define VI_PAL_B 1
-#define VI_PAL_D 2
-#define VI_PAL_G 3
-#define VI_PAL_H 4
-#define VI_PAL_I 5
-#define VI_PAL_M 6
-#define VI_PAL_N 7
-#define VI_PAL_NC 8
-#define VI_SECAM_B 9
-#define VI_SECAM_D 10
-#define VI_SECAM_G 11
-#define VI_SECAM_H 12
-#define VI_SECAM_K 13
-#define VI_SECAM_K1 14
-#define VI_SECAM_L 15
-#define VI_NTSC_M_J 16
-#define VI_NTSC_433 17
-
-
-//allows us to directShow classes here with the includes in the cpp
-struct ICaptureGraphBuilder2;
-struct IGraphBuilder;
-struct IBaseFilter;
-struct IAMCrossbar;
-struct IMediaControl;
-struct ISampleGrabber;
-struct IMediaEventEx;
-struct IAMStreamConfig;
-struct _AMMediaType;
-class SampleGrabberCallback;
-typedef _AMMediaType AM_MEDIA_TYPE;
-
-//keeps track of how many instances of VI are being used
-//don't touch
-static int comInitCount = 0;
-
-
-//////////////////////////////////////// VIDEO DEVICE ///////////////////////////////////
-
-class videoDevice{
-
-
- public:
-
- videoDevice();
- void setSize(int w, int h);
- void NukeDownstream(IBaseFilter *pBF);
- void destroyGraph();
- ~videoDevice();
-
- int videoSize;
- int width;
- int height;
- int tryWidth;
- int tryHeight;
-
- ICaptureGraphBuilder2 *pCaptureGraph; // Capture graph builder object
- IGraphBuilder *pGraph; // Graph builder object
- IMediaControl *pControl; // Media control object
- IBaseFilter *pVideoInputFilter; // Video Capture filter
- IBaseFilter *pGrabberF;
- IBaseFilter * pDestFilter;
- IAMStreamConfig *streamConf;
- ISampleGrabber * pGrabber; // Grabs frame
- AM_MEDIA_TYPE * pAmMediaType;
-
- IMediaEventEx * pMediaEvent;
-
- GUID videoType;
- long formatType;
-
- SampleGrabberCallback * sgCallback;
-
- bool tryDiffSize;
- bool useCrossbar;
- bool readyToCapture;
- bool sizeSet;
- bool setupStarted;
- bool specificFormat;
- bool autoReconnect;
- int nFramesForReconnect;
- unsigned long nFramesRunning;
- int connection;
- int storeConn;
- int myID;
- long requestedFrameTime; //ie fps
-
- char nDeviceName[255];
- WCHAR wDeviceName[255];
-
- unsigned char * pixels;
- char * pBuffer;
-
-};
-
-
-
-
-////////////////////////////////////// VIDEO INPUT /////////////////////////////////////
-
-
-
-class videoInput{
-
- public:
- videoInput();
- ~videoInput();
-
- //turns off console messages - default is to print messages
- static void setVerbose(bool _verbose);
-
- //Functions in rough order they should be used.
- static int listDevices(bool silent = false);
-
- //needs to be called after listDevices - otherwise returns NULL
- static char * getDeviceName(int deviceID);
-
- //choose to use callback based capture - or single threaded
- void setUseCallback(bool useCallback);
-
- //call before setupDevice
- //directshow will try and get the closest possible framerate to what is requested
- void setIdealFramerate(int deviceID, int idealFramerate);
-
- //some devices will stop delivering frames after a while - this method gives you the option to try and reconnect
- //to a device if videoInput detects that a device has stopped delivering frames.
- //you MUST CALL isFrameNew every app loop for this to have any effect
- void setAutoReconnectOnFreeze(int deviceNumber, bool doReconnect, int numMissedFramesBeforeReconnect);
-
- //Choose one of these four to setup your device
- bool setupDevice(int deviceID);
- bool setupDevice(int deviceID, int w, int h);
-
- //These two are only for capture cards
- //USB and Firewire cameras souldn't specify connection
- bool setupDevice(int deviceID, int connection);
- bool setupDevice(int deviceID, int w, int h, int connection);
-
- //If you need to you can set your NTSC/PAL/SECAM
- //preference here. if it is available it will be used.
- //see #defines above for available formats - eg VI_NTSC_M or VI_PAL_B
- //should be called after setupDevice
- //can be called multiple times
- bool setFormat(int deviceNumber, int format);
-
- //Tells you when a new frame has arrived - you should call this if you have specified setAutoReconnectOnFreeze to true
- bool isFrameNew(int deviceID);
-
- bool isDeviceSetup(int deviceID);
-
- //Returns the pixels - flipRedAndBlue toggles RGB/BGR flipping - and you can flip the image too
- unsigned char * getPixels(int deviceID, bool flipRedAndBlue = true, bool flipImage = false);
-
- //Or pass in a buffer for getPixels to fill returns true if successful.
- bool getPixels(int id, unsigned char * pixels, bool flipRedAndBlue = true, bool flipImage = false);
-
- //Launches a pop up settings window
- //For some reason in GLUT you have to call it twice each time.
- void showSettingsWindow(int deviceID);
-
- //Manual control over settings thanks.....
- //These are experimental for now.
- bool setVideoSettingFilter(int deviceID, long Property, long lValue, long Flags = NULL, bool useDefaultValue = false);
- bool setVideoSettingFilterPct(int deviceID, long Property, float pctValue, long Flags = NULL);
- bool getVideoSettingFilter(int deviceID, long Property, long &min, long &max, long &SteppingDelta, long &currentValue, long &flags, long &defaultValue);
-
- bool setVideoSettingCamera(int deviceID, long Property, long lValue, long Flags = NULL, bool useDefaultValue = false);
- bool setVideoSettingCameraPct(int deviceID, long Property, float pctValue, long Flags = NULL);
- bool getVideoSettingCamera(int deviceID, long Property, long &min, long &max, long &SteppingDelta, long &currentValue, long &flags, long &defaultValue);
-
- //bool setVideoSettingCam(int deviceID, long Property, long lValue, long Flags = NULL, bool useDefaultValue = false);
-
- //get width, height and number of pixels
- int getWidth(int deviceID);
- int getHeight(int deviceID);
- int getSize(int deviceID);
-
- //completely stops and frees a device
- void stopDevice(int deviceID);
-
- //as above but then sets it up with same settings
- bool restartDevice(int deviceID);
-
- //number of devices available
- int devicesFound;
-
- long propBrightness;
- long propContrast;
- long propHue;
- long propSaturation;
- long propSharpness;
- long propGamma;
- long propColorEnable;
- long propWhiteBalance;
- long propBacklightCompensation;
- long propGain;
-
- long propPan;
- long propTilt;
- long propRoll;
- long propZoom;
- long propExposure;
- long propIris;
- long propFocus;
-
-
- private:
- void setPhyCon(int deviceID, int conn);
- void setAttemptCaptureSize(int deviceID, int w, int h);
- bool setup(int deviceID);
- void processPixels(unsigned char * src, unsigned char * dst, int width, int height, bool bRGB, bool bFlip);
- int start(int deviceID, videoDevice * VD);
- int getDeviceCount();
- void getMediaSubtypeAsString(GUID type, char * typeAsString);
-
- HRESULT getDevice(IBaseFilter **pSrcFilter, int deviceID, WCHAR * wDeviceName, char * nDeviceName);
- static HRESULT ShowFilterPropertyPages(IBaseFilter *pFilter);
- HRESULT SaveGraphFile(IGraphBuilder *pGraph, WCHAR *wszPath);
- HRESULT routeCrossbar(ICaptureGraphBuilder2 **ppBuild, IBaseFilter **pVidInFilter, int conType, GUID captureMode);
-
- //don't touch
- static bool comInit();
- static bool comUnInit();
-
- int connection;
- int callbackSetCount;
- bool bCallback;
-
- GUID CAPTURE_MODE;
-
- //Extra video subtypes
- GUID MEDIASUBTYPE_Y800;
- GUID MEDIASUBTYPE_Y8;
- GUID MEDIASUBTYPE_GREY;
-
- videoDevice * VDList[VI_MAX_CAMERAS];
- GUID mediaSubtypes[VI_NUM_TYPES];
- long formatTypes[VI_NUM_FORMATS];
-
- static void __cdecl basicThread(void * objPtr);
-
- static char deviceNames[VI_MAX_CAMERAS][255];
-
-};
-
- #endif