mirror of
https://github.com/opencv/opencv.git
synced 2024-12-11 14:39:11 +08:00
386 lines
12 KiB
C
386 lines
12 KiB
C
|
#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 ¤tValue, 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 ¤tValue, 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
|