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opencv/modules/highgui/src/cap_vfw.cpp
Alexander Smorkalov 43122939cb Media foundation video i/o fixes. 
Bug in Video for Windows capture init fixed;
Media Foundation based capture finalization fixed;
Highgui tests for video i/o updated.
2013-06-25 03:35:30 -07:00

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/*M///////////////////////////////////////////////////////////////////////////////////////
//
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//
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// copy or use the software.
//
//
// Intel License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000, Intel Corporation, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
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// derived from this software without specific prior written permission.
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// (including, but not limited to, procurement of substitute goods or services;
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// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
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//M*/
#include "precomp.hpp"
#include <vfw.h>
#ifdef __GNUC__
#define WM_CAP_FIRSTA (WM_USER)
#define capSendMessage(hwnd,m,w,l) (IsWindow(hwnd)?SendMessage(hwnd,m,w,l):0)
#endif
#if defined _M_X64 && defined _MSC_VER
#pragma optimize("",off)
#pragma warning(disable: 4748)
#endif
/********************* Capturing video from AVI via VFW ************************/
static BITMAPINFOHEADER icvBitmapHeader( int width, int height, int bpp, int compression = BI_RGB )
{
BITMAPINFOHEADER bmih;
memset( &bmih, 0, sizeof(bmih));
bmih.biSize = sizeof(bmih);
bmih.biWidth = width;
bmih.biHeight = height;
bmih.biBitCount = (WORD)bpp;
bmih.biCompression = compression;
bmih.biPlanes = 1;
return bmih;
}
static void icvInitCapture_VFW()
{
static int isInitialized = 0;
if( !isInitialized )
{
AVIFileInit();
isInitialized = 1;
}
}
class CvCaptureAVI_VFW : public CvCapture
{
public:
CvCaptureAVI_VFW()
{
CoInitialize(NULL);
init();
}
virtual ~CvCaptureAVI_VFW()
{
close();
CoUninitialize();
}
virtual bool open( const char* filename );
virtual void close();
virtual double getProperty(int);
virtual bool setProperty(int, double);
virtual bool grabFrame();
virtual IplImage* retrieveFrame(int);
virtual int getCaptureDomain() { return CV_CAP_VFW; } // Return the type of the capture object: CV_CAP_VFW, etc...
protected:
void init();
PAVIFILE avifile;
PAVISTREAM avistream;
PGETFRAME getframe;
AVISTREAMINFO aviinfo;
BITMAPINFOHEADER * bmih;
CvSlice film_range;
double fps;
int pos;
IplImage* frame;
CvSize size;
};
void CvCaptureAVI_VFW::init()
{
avifile = 0;
avistream = 0;
getframe = 0;
memset( &aviinfo, 0, sizeof(aviinfo) );
bmih = 0;
film_range = cvSlice(0,0);
fps = 0;
pos = 0;
frame = 0;
size = cvSize(0,0);
}
void CvCaptureAVI_VFW::close()
{
if( getframe )
AVIStreamGetFrameClose( getframe );
if( avistream )
AVIStreamRelease( avistream );
if( avifile )
AVIFileRelease( avifile );
if (frame)
cvReleaseImage( &frame );
init();
}
bool CvCaptureAVI_VFW::open( const char* filename )
{
close();
icvInitCapture_VFW();
if( !filename )
return false;
HRESULT hr = AVIFileOpen( &avifile, filename, OF_READ, NULL );
if( SUCCEEDED(hr))
{
hr = AVIFileGetStream( avifile, &avistream, streamtypeVIDEO, 0 );
if( SUCCEEDED(hr))
{
hr = AVIStreamInfo( avistream, &aviinfo, sizeof(aviinfo));
if( SUCCEEDED(hr))
{
size.width = aviinfo.rcFrame.right - aviinfo.rcFrame.left;
size.height = aviinfo.rcFrame.bottom - aviinfo.rcFrame.top;
BITMAPINFOHEADER bmihdr = icvBitmapHeader( size.width, size.height, 24 );
film_range.start_index = (int)aviinfo.dwStart;
film_range.end_index = film_range.start_index + (int)aviinfo.dwLength;
fps = (double)aviinfo.dwRate/aviinfo.dwScale;
pos = film_range.start_index;
getframe = AVIStreamGetFrameOpen( avistream, &bmihdr );
if( getframe != 0 )
return true;
// Attempt to open as 8-bit AVI.
bmihdr = icvBitmapHeader( size.width, size.height, 8);
getframe = AVIStreamGetFrameOpen( avistream, &bmihdr );
if( getframe != 0 )
return true;
}
}
}
close();
return false;
}
bool CvCaptureAVI_VFW::grabFrame()
{
if( avistream )
bmih = (BITMAPINFOHEADER*)AVIStreamGetFrame( getframe, pos++ );
return bmih != 0;
}
IplImage* CvCaptureAVI_VFW::retrieveFrame(int)
{
if( avistream && bmih )
{
bool isColor = bmih->biBitCount == 24;
int nChannels = (isColor) ? 3 : 1;
IplImage src;
cvInitImageHeader( &src, cvSize( bmih->biWidth, bmih->biHeight ),
IPL_DEPTH_8U, nChannels, IPL_ORIGIN_BL, 4 );
char* dataPtr = (char*)(bmih + 1);
// Only account for the color map size if we are an 8-bit image and the color map is used
if (!isColor)
{
static int RGBQUAD_SIZE_PER_BYTE = sizeof(RGBQUAD)/sizeof(BYTE);
int offsetFromColormapToData = (int)bmih->biClrUsed*RGBQUAD_SIZE_PER_BYTE;
dataPtr += offsetFromColormapToData;
}
cvSetData( &src, dataPtr, src.widthStep );
if( !frame || frame->width != src.width || frame->height != src.height )
{
cvReleaseImage( &frame );
frame = cvCreateImage( cvGetSize(&src), 8, nChannels );
}
cvFlip( &src, frame, 0 );
return frame;
}
return 0;
}
double CvCaptureAVI_VFW::getProperty( int property_id )
{
switch( property_id )
{
case CV_CAP_PROP_POS_MSEC:
return cvRound(pos*1000./fps);
case CV_CAP_PROP_POS_FRAMES:
return pos;
case CV_CAP_PROP_POS_AVI_RATIO:
return (pos - film_range.start_index)/
(film_range.end_index - film_range.start_index + 1e-10);
case CV_CAP_PROP_FRAME_WIDTH:
return size.width;
case CV_CAP_PROP_FRAME_HEIGHT:
return size.height;
case CV_CAP_PROP_FPS:
return fps;
case CV_CAP_PROP_FOURCC:
return aviinfo.fccHandler;
case CV_CAP_PROP_FRAME_COUNT:
return film_range.end_index - film_range.start_index;
}
return 0;
}
bool CvCaptureAVI_VFW::setProperty( int property_id, double value )
{
switch( property_id )
{
case CV_CAP_PROP_POS_MSEC:
case CV_CAP_PROP_POS_FRAMES:
case CV_CAP_PROP_POS_AVI_RATIO:
{
switch( property_id )
{
case CV_CAP_PROP_POS_MSEC:
pos = cvRound(value*fps*0.001);
break;
case CV_CAP_PROP_POS_AVI_RATIO:
pos = cvRound(value*(film_range.end_index -
film_range.start_index) +
film_range.start_index);
break;
default:
pos = cvRound(value);
}
if( pos < film_range.start_index )
pos = film_range.start_index;
if( pos > film_range.end_index )
pos = film_range.end_index;
}
break;
default:
return false;
}
return true;
}
CvCapture* cvCreateFileCapture_VFW (const char* filename)
{
CvCaptureAVI_VFW* capture = new CvCaptureAVI_VFW;
if( capture->open(filename) )
return capture;
delete capture;
return 0;
}
/********************* Capturing video from camera via VFW *********************/
class CvCaptureCAM_VFW : public CvCapture
{
public:
CvCaptureCAM_VFW() { init(); }
virtual ~CvCaptureCAM_VFW() { close(); }
virtual bool open( int index );
virtual void close();
virtual double getProperty(int);
virtual bool setProperty(int, double) { return false; }
virtual bool grabFrame();
virtual IplImage* retrieveFrame(int);
virtual int getCaptureDomain() { return CV_CAP_VFW; } // Return the type of the capture object: CV_CAP_VFW, etc...
protected:
void init();
void closeHIC();
static LRESULT PASCAL frameCallback( HWND hWnd, VIDEOHDR* hdr );
CAPDRIVERCAPS caps;
HWND capWnd;
VIDEOHDR* hdr;
DWORD fourcc;
HIC hic;
IplImage* frame;
};
void CvCaptureCAM_VFW::init()
{
memset( &caps, 0, sizeof(caps) );
capWnd = 0;
hdr = 0;
fourcc = 0;
hic = 0;
frame = 0;
}
void CvCaptureCAM_VFW::closeHIC()
{
if( hic )
{
ICDecompressEnd( hic );
ICClose( hic );
hic = 0;
}
}
LRESULT PASCAL CvCaptureCAM_VFW::frameCallback( HWND hWnd, VIDEOHDR* hdr )
{
CvCaptureCAM_VFW* capture = 0;
if (!hWnd) return FALSE;
capture = (CvCaptureCAM_VFW*)capGetUserData(hWnd);
capture->hdr = hdr;
return (LRESULT)TRUE;
}
// Initialize camera input
bool CvCaptureCAM_VFW::open( int wIndex )
{
char szDeviceName[80];
char szDeviceVersion[80];
HWND hWndC = 0;
close();
if( (unsigned)wIndex >= 10 )
wIndex = 0;
for( ; wIndex < 10; wIndex++ )
{
if( capGetDriverDescription( wIndex, szDeviceName,
sizeof (szDeviceName), szDeviceVersion,
sizeof (szDeviceVersion)))
{
hWndC = capCreateCaptureWindow ( "My Own Capture Window",
WS_POPUP | WS_CHILD, 0, 0, 320, 240, 0, 0);
if( capDriverConnect (hWndC, wIndex))
break;
DestroyWindow( hWndC );
hWndC = 0;
}
}
if( hWndC )
{
capWnd = hWndC;
hdr = 0;
hic = 0;
fourcc = (DWORD)-1;
memset( &caps, 0, sizeof(caps));
capDriverGetCaps( hWndC, &caps, sizeof(caps));
::MoveWindow( hWndC, 0, 0, 320, 240, TRUE );
capSetUserData( hWndC, (size_t)this );
capSetCallbackOnFrame( hWndC, frameCallback );
CAPTUREPARMS p;
capCaptureGetSetup(hWndC,&p,sizeof(CAPTUREPARMS));
p.dwRequestMicroSecPerFrame = 66667/2;
capCaptureSetSetup(hWndC,&p,sizeof(CAPTUREPARMS));
//capPreview( hWndC, 1 );
capPreviewScale(hWndC,FALSE);
capPreviewRate(hWndC,1);
}
return capWnd != 0;
}
void CvCaptureCAM_VFW::close()
{
if( capWnd )
{
capSetCallbackOnFrame( capWnd, NULL );
capDriverDisconnect( capWnd );
DestroyWindow( capWnd );
closeHIC();
}
cvReleaseImage( &frame );
init();
}
bool CvCaptureCAM_VFW::grabFrame()
{
if( capWnd )
{
SendMessage( capWnd, WM_CAP_GRAB_FRAME_NOSTOP, 0, 0 );
return true;
}
return false;
}
IplImage* CvCaptureCAM_VFW::retrieveFrame(int)
{
BITMAPINFO vfmt;
memset( &vfmt, 0, sizeof(vfmt));
BITMAPINFOHEADER& vfmt0 = vfmt.bmiHeader;
int sz, prevWidth, prevHeight;
if( !capWnd )
return 0;
sz = capGetVideoFormat( capWnd, &vfmt, sizeof(vfmt));
prevWidth = frame ? frame->width : 0;
prevHeight = frame ? frame->height : 0;
if( !hdr || hdr->lpData == 0 || sz == 0 )
return 0;
if( !frame || frame->width != vfmt0.biWidth || frame->height != vfmt0.biHeight )
{
cvReleaseImage( &frame );
frame = cvCreateImage( cvSize( vfmt0.biWidth, vfmt0.biHeight ), 8, 3 );
}
if( vfmt.bmiHeader.biCompression != BI_RGB ||
vfmt.bmiHeader.biBitCount != 24 )
{
BITMAPINFOHEADER vfmt1 = icvBitmapHeader( vfmt0.biWidth, vfmt0.biHeight, 24 );
if( hic == 0 || fourcc != vfmt0.biCompression ||
prevWidth != vfmt0.biWidth || prevHeight != vfmt0.biHeight )
{
closeHIC();
hic = ICOpen( MAKEFOURCC('V','I','D','C'),
vfmt0.biCompression, ICMODE_DECOMPRESS );
if( hic )
{
if( ICDecompressBegin( hic, &vfmt0, &vfmt1 ) != ICERR_OK )
{
closeHIC();
return 0;
}
}
}
if( !hic || ICDecompress( hic, 0, &vfmt0, hdr->lpData,
&vfmt1, frame->imageData ) != ICERR_OK )
{
closeHIC();
return 0;
}
cvFlip( frame, frame, 0 );
}
else
{
IplImage src;
cvInitImageHeader( &src, cvSize(vfmt0.biWidth, vfmt0.biHeight),
IPL_DEPTH_8U, 3, IPL_ORIGIN_BL, 4 );
cvSetData( &src, hdr->lpData, src.widthStep );
cvFlip( &src, frame, 0 );
}
return frame;
}
double CvCaptureCAM_VFW::getProperty( int property_id )
{
switch( property_id )
{
case CV_CAP_PROP_FRAME_WIDTH:
return frame ? frame->width : 0;
case CV_CAP_PROP_FRAME_HEIGHT:
return frame ? frame->height : 0;
case CV_CAP_PROP_FOURCC:
return fourcc;
}
return 0;
}
CvCapture* cvCreateCameraCapture_VFW( int index )
{
CvCaptureCAM_VFW* capture = new CvCaptureCAM_VFW;
if( capture->open( index ))
return capture;
delete capture;
return 0;
}
/*************************** writing AVIs ******************************/
class CvVideoWriter_VFW : public CvVideoWriter
{
public:
CvVideoWriter_VFW() { init(); }
virtual ~CvVideoWriter_VFW() { close(); }
virtual bool open( const char* filename, int fourcc,
double fps, CvSize frameSize, bool isColor );
virtual void close();
virtual bool writeFrame( const IplImage* );
protected:
void init();
bool createStreams( CvSize frameSize, bool isColor );
PAVIFILE avifile;
PAVISTREAM compressed;
PAVISTREAM uncompressed;
double fps;
IplImage* tempFrame;
long pos;
int fourcc;
};
void CvVideoWriter_VFW::init()
{
avifile = 0;
compressed = uncompressed = 0;
fps = 0;
tempFrame = 0;
pos = 0;
fourcc = 0;
}
void CvVideoWriter_VFW::close()
{
if( uncompressed )
AVIStreamRelease( uncompressed );
if( compressed )
AVIStreamRelease( compressed );
if( avifile )
AVIFileRelease( avifile );
cvReleaseImage( &tempFrame );
init();
}
// philipg. Made this code capable of writing 8bpp gray scale bitmaps
struct BITMAPINFO_8Bit
{
BITMAPINFOHEADER bmiHeader;
RGBQUAD bmiColors[256];
};
bool CvVideoWriter_VFW::open( const char* filename, int _fourcc, double _fps, CvSize frameSize, bool isColor )
{
close();
icvInitCapture_VFW();
if( AVIFileOpen( &avifile, filename, OF_CREATE | OF_WRITE, 0 ) == AVIERR_OK )
{
fourcc = _fourcc;
fps = _fps;
if( frameSize.width > 0 && frameSize.height > 0 &&
!createStreams( frameSize, isColor ) )
{
close();
return false;
}
return true;
}
else
return false;
}
bool CvVideoWriter_VFW::createStreams( CvSize frameSize, bool isColor )
{
if( !avifile )
return false;
AVISTREAMINFO aviinfo;
BITMAPINFO_8Bit bmih;
bmih.bmiHeader = icvBitmapHeader( frameSize.width, frameSize.height, isColor ? 24 : 8 );
for( int i = 0; i < 256; i++ )
{
bmih.bmiColors[i].rgbBlue = (BYTE)i;
bmih.bmiColors[i].rgbGreen = (BYTE)i;
bmih.bmiColors[i].rgbRed = (BYTE)i;
bmih.bmiColors[i].rgbReserved = 0;
}
memset( &aviinfo, 0, sizeof(aviinfo));
aviinfo.fccType = streamtypeVIDEO;
aviinfo.fccHandler = 0;
// use highest possible accuracy for dwRate/dwScale
aviinfo.dwScale = (DWORD)((double)0x7FFFFFFF / fps);
aviinfo.dwRate = cvRound(fps * aviinfo.dwScale);
aviinfo.rcFrame.top = aviinfo.rcFrame.left = 0;
aviinfo.rcFrame.right = frameSize.width;
aviinfo.rcFrame.bottom = frameSize.height;
if( AVIFileCreateStream( avifile, &uncompressed, &aviinfo ) == AVIERR_OK )
{
AVICOMPRESSOPTIONS copts, *pcopts = &copts;
copts.fccType = streamtypeVIDEO;
copts.fccHandler = fourcc != -1 ? fourcc : 0;
copts.dwKeyFrameEvery = 1;
copts.dwQuality = 10000;
copts.dwBytesPerSecond = 0;
copts.dwFlags = AVICOMPRESSF_VALID;
copts.lpFormat = &bmih;
copts.cbFormat = (isColor ? sizeof(BITMAPINFOHEADER) : sizeof(bmih));
copts.lpParms = 0;
copts.cbParms = 0;
copts.dwInterleaveEvery = 0;
if( fourcc != -1 || AVISaveOptions( 0, 0, 1, &uncompressed, &pcopts ) == TRUE )
{
if( AVIMakeCompressedStream( &compressed, uncompressed, pcopts, 0 ) == AVIERR_OK &&
AVIStreamSetFormat( compressed, 0, &bmih, sizeof(bmih)) == AVIERR_OK )
{
fps = fps;
fourcc = (int)copts.fccHandler;
frameSize = frameSize;
tempFrame = cvCreateImage( frameSize, 8, (isColor ? 3 : 1) );
return true;
}
}
}
return false;
}
bool CvVideoWriter_VFW::writeFrame( const IplImage* image )
{
bool result = false;
CV_FUNCNAME( "CvVideoWriter_VFW::writeFrame" );
__BEGIN__;
if( !image )
EXIT;
if( !compressed && !createStreams( cvGetSize(image), image->nChannels > 1 ))
EXIT;
if( image->width != tempFrame->width || image->height != tempFrame->height )
CV_ERROR( CV_StsUnmatchedSizes,
"image size is different from the currently set frame size" );
if( image->nChannels != tempFrame->nChannels ||
image->depth != tempFrame->depth ||
image->origin == 0 ||
image->widthStep != cvAlign(image->width*image->nChannels*((image->depth & 255)/8), 4))
{
cvConvertImage( image, tempFrame, image->origin == 0 ? CV_CVTIMG_FLIP : 0 );
image = (const IplImage*)tempFrame;
}
result = AVIStreamWrite( compressed, pos++, 1, image->imageData,
image->imageSize, AVIIF_KEYFRAME, 0, 0 ) == AVIERR_OK;
__END__;
return result;
}
CvVideoWriter* cvCreateVideoWriter_VFW( const char* filename, int fourcc,
double fps, CvSize frameSize, int isColor )
{
CvVideoWriter_VFW* writer = new CvVideoWriter_VFW;
if( writer->open( filename, fourcc, fps, frameSize, isColor != 0 ))
return writer;
delete writer;
return 0;
}
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