void CAviCap::_getDrvList()
{
if(_totalDrv())
{_drvNames.RemoveAll( );
_drvVers.RemoveAll( );}
_drvNames.SetSize(0,1);
_drvVers.SetSize(0,1);
int j;
char szName[80];
char szVer[80];
for (j =0; j < MAXCAPDRIVERS; j++)
if (capGetDriverDescription (j,
szName, sizeof (szName),
szVer, sizeof (szVer)))
{
_drvNames.Add((LPCSTR)szName);
_drvVers.Add((LPCSTR)szVer);
}
else
{
break; // !!!! terminate
}
}
void cap_getdevname(char *buff, size_t buflen, int device)
{
if(!capGetDriverDescription(
device,
buff,
(DWORD)buflen,
NULL,
0))
{
strcpy(buff, "No device");
}
}
int GetCamIndex()
{
int wIndex;
char szDeviceName[80];
char szDeviceVersion[80];
for (wIndex = 0; wIndex < 9; wIndex++){
if (capGetDriverDescription(wIndex, szDeviceName,sizeof (szDeviceName),szDeviceVersion, sizeof(szDeviceVersion)))
return wIndex;
}
return -1;
}
Array<MMCaptureDevice> MMCaptureDevice::getDevices() { // static
Array<MMCaptureDevice> devices;
for(int i = 0; i < 10; i++) {
TCHAR deviceName[100];
TCHAR deviceVersion[100];
if(capGetDriverDescription(i, deviceName, ARRAYSIZE(deviceName), deviceVersion, ARRAYSIZE(deviceVersion))) {
devices.add(MMCaptureDevice(deviceName,deviceVersion));
} else {
break;
}
}
return devices;
}
//Description: gets the name of an imaging device associated with a given ID number
//Input: digitizer ID number and a dummy string
//Output: returns success (non-negative) or failure, digitizer name in dummy string
EXPORT long GetDigitizer(long lID, CHAR *szName) {
CHAR szVer[80];
CHAR szTemp[80];
//get the name of the capture device associated with the given ID
if(!capGetDriverDescription (lID, szTemp, sizeof(szTemp), szVer, sizeof(szVer)))
return -1;
//copy the new device name over the dummy string provided by LabView
else
strcpy(szName, szTemp);
return 0;
}
// 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;
}
bool CVideoCap::IsWebCam()
{
// 已经连接了
if (m_bIsConnected)
return false;
bool bRet = false;
char lpszName[100], lpszVer[50];
for (int i = 0; i < 10 && !bRet; i++)
{
bRet = capGetDriverDescription(i, lpszName, sizeof(lpszName),
lpszVer, sizeof(lpszVer));
}
return bRet;
}
static VfwEngine * vfw_engine_new(int i){
char dev[512];
char ver[512];
VfwEngine *obj=(VfwEngine*)ms_new0(VfwEngine,1);
if (capGetDriverDescription(i, dev, sizeof (dev),
ver, sizeof (ver))){
obj->devidx=i;
if (_vfw_engine_connect(obj)==-1){
ms_free(obj);
return NULL;
}
strcpy(obj->dev,dev);
engines[i]=obj;
return obj;
}
return NULL;
}
// 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));
CAPSTATUS status = {};
capGetStatus(hWndC, &status, sizeof(status));
::SetWindowPos(hWndC, NULL, 0, 0, status.uiImageWidth, status.uiImageHeight, SWP_NOZORDER|SWP_NOMOVE);
capSetUserData( hWndC, (size_t)this );
capSetCallbackOnFrame( hWndC, frameCallback );
CAPTUREPARMS p;
capCaptureGetSetup(hWndC,&p,sizeof(CAPTUREPARMS));
p.dwRequestMicroSecPerFrame = 66667/2; // 30 FPS
capCaptureSetSetup(hWndC,&p,sizeof(CAPTUREPARMS));
//capPreview( hWndC, 1 );
capPreviewScale(hWndC,FALSE);
capPreviewRate(hWndC,1);
// Get frame initial parameters.
const DWORD size = capGetVideoFormatSize(capWnd);
if( size > 0 )
{
unsigned char *pbi = new unsigned char[size];
if( pbi )
{
if( capGetVideoFormat(capWnd, pbi, size) == size )
{
BITMAPINFOHEADER& vfmt = ((BITMAPINFO*)pbi)->bmiHeader;
widthSet = vfmt.biWidth;
heightSet = vfmt.biHeight;
fourcc = vfmt.biCompression;
}
delete []pbi;
}
}
// And alternative way in case of failure.
if( widthSet == 0 || heightSet == 0 )
{
widthSet = status.uiImageWidth;
heightSet = status.uiImageHeight;
}
}
return capWnd != 0;
}
static int vfw_read_header(AVFormatContext *s)
{
struct vfw_ctx *ctx = s->priv_data;
AVCodecContext *codec;
AVStream *st;
int devnum;
int bisize;
BITMAPINFO *bi = NULL;
CAPTUREPARMS cparms;
DWORD biCompression;
WORD biBitCount;
int ret;
AVRational framerate_q;
if (!strcmp(s->filename, "list")) {
for (devnum = 0; devnum <= 9; devnum++) {
char driver_name[256];
char driver_ver[256];
ret = capGetDriverDescription(devnum,
driver_name, sizeof(driver_name),
driver_ver, sizeof(driver_ver));
if (ret) {
av_log(s, AV_LOG_INFO, "Driver %d\n", devnum);
av_log(s, AV_LOG_INFO, " %s\n", driver_name);
av_log(s, AV_LOG_INFO, " %s\n", driver_ver);
}
}
return AVERROR(EIO);
}
ctx->hwnd = capCreateCaptureWindow(NULL, 0, 0, 0, 0, 0, HWND_MESSAGE, 0);
if(!ctx->hwnd) {
av_log(s, AV_LOG_ERROR, "Could not create capture window.\n");
return AVERROR(EIO);
}
/* If atoi fails, devnum==0 and the default device is used */
devnum = atoi(s->filename);
ret = SendMessage(ctx->hwnd, WM_CAP_DRIVER_CONNECT, devnum, 0);
if(!ret) {
av_log(s, AV_LOG_ERROR, "Could not connect to device.\n");
DestroyWindow(ctx->hwnd);
return AVERROR(ENODEV);
}
SendMessage(ctx->hwnd, WM_CAP_SET_OVERLAY, 0, 0);
SendMessage(ctx->hwnd, WM_CAP_SET_PREVIEW, 0, 0);
ret = SendMessage(ctx->hwnd, WM_CAP_SET_CALLBACK_VIDEOSTREAM, 0,
(LPARAM) videostream_cb);
if(!ret) {
av_log(s, AV_LOG_ERROR, "Could not set video stream callback.\n");
goto fail;
}
SetWindowLongPtr(ctx->hwnd, GWLP_USERDATA, (LONG_PTR) s);
st = avformat_new_stream(s, NULL);
if(!st) {
vfw_read_close(s);
return AVERROR(ENOMEM);
}
/* Set video format */
bisize = SendMessage(ctx->hwnd, WM_CAP_GET_VIDEOFORMAT, 0, 0);
if(!bisize)
goto fail;
bi = av_malloc(bisize);
if(!bi) {
vfw_read_close(s);
return AVERROR(ENOMEM);
}
ret = SendMessage(ctx->hwnd, WM_CAP_GET_VIDEOFORMAT, bisize, (LPARAM) bi);
if(!ret)
goto fail;
dump_bih(s, &bi->bmiHeader);
ret = av_parse_video_rate(&framerate_q, ctx->framerate);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Could not parse framerate '%s'.\n", ctx->framerate);
goto fail;
}
if (ctx->video_size) {
ret = av_parse_video_size(&bi->bmiHeader.biWidth, &bi->bmiHeader.biHeight, ctx->video_size);
if (ret < 0) {
av_log(s, AV_LOG_ERROR, "Couldn't parse video size.\n");
goto fail;
}
}
if (0) {
/* For testing yet unsupported compressions
* Copy these values from user-supplied verbose information */
bi->bmiHeader.biWidth = 320;
bi->bmiHeader.biHeight = 240;
bi->bmiHeader.biPlanes = 1;
bi->bmiHeader.biBitCount = 12;
bi->bmiHeader.biCompression = MKTAG('I','4','2','0');
bi->bmiHeader.biSizeImage = 115200;
dump_bih(s, &bi->bmiHeader);
}
ret = SendMessage(ctx->hwnd, WM_CAP_SET_VIDEOFORMAT, bisize, (LPARAM) bi);
if(!ret) {
av_log(s, AV_LOG_ERROR, "Could not set Video Format.\n");
goto fail;
}
biCompression = bi->bmiHeader.biCompression;
biBitCount = bi->bmiHeader.biBitCount;
/* Set sequence setup */
ret = SendMessage(ctx->hwnd, WM_CAP_GET_SEQUENCE_SETUP, sizeof(cparms),
(LPARAM) &cparms);
if(!ret)
goto fail;
dump_captureparms(s, &cparms);
cparms.fYield = 1; // Spawn a background thread
cparms.dwRequestMicroSecPerFrame =
(framerate_q.den*1000000) / framerate_q.num;
cparms.fAbortLeftMouse = 0;
cparms.fAbortRightMouse = 0;
cparms.fCaptureAudio = 0;
cparms.vKeyAbort = 0;
ret = SendMessage(ctx->hwnd, WM_CAP_SET_SEQUENCE_SETUP, sizeof(cparms),
(LPARAM) &cparms);
if(!ret)
goto fail;
codec = st->codec;
codec->time_base = av_inv_q(framerate_q);
codec->codec_type = AVMEDIA_TYPE_VIDEO;
codec->width = bi->bmiHeader.biWidth;
codec->height = bi->bmiHeader.biHeight;
codec->pix_fmt = vfw_pixfmt(biCompression, biBitCount);
if(codec->pix_fmt == AV_PIX_FMT_NONE) {
codec->codec_id = vfw_codecid(biCompression);
if(codec->codec_id == AV_CODEC_ID_NONE) {
av_log(s, AV_LOG_ERROR, "Unknown compression type. "
"Please report verbose (-v 9) debug information.\n");
vfw_read_close(s);
return AVERROR_PATCHWELCOME;
}
codec->bits_per_coded_sample = biBitCount;
} else {
codec->codec_id = AV_CODEC_ID_RAWVIDEO;
if(biCompression == BI_RGB) {
codec->bits_per_coded_sample = biBitCount;
codec->extradata = av_malloc(9 + AV_INPUT_BUFFER_PADDING_SIZE);
if (codec->extradata) {
codec->extradata_size = 9;
memcpy(codec->extradata, "BottomUp", 9);
}
}
}
av_freep(&bi);
avpriv_set_pts_info(st, 32, 1, 1000);
ctx->mutex = CreateMutex(NULL, 0, NULL);
if(!ctx->mutex) {
av_log(s, AV_LOG_ERROR, "Could not create Mutex.\n" );
goto fail;
}
ctx->event = CreateEvent(NULL, 1, 0, NULL);
if(!ctx->event) {
av_log(s, AV_LOG_ERROR, "Could not create Event.\n" );
goto fail;
}
ret = SendMessage(ctx->hwnd, WM_CAP_SEQUENCE_NOFILE, 0, 0);
if(!ret) {
av_log(s, AV_LOG_ERROR, "Could not start capture sequence.\n" );
goto fail;
}
return 0;
fail:
av_freep(&bi);
vfw_read_close(s);
return AVERROR(EIO);
}
void CDlgCapCam::Active(void)
{
printf("capcam active\r\n");
CString str;
m_flg_process = 0;
//init cfg para
algo_cfg_path = config_path + _T("\\advanced_parameters_default.ini");
strncpy_s(_vsv_dll_path, config_path.GetBuffer(), 256);
memset(&m_algo_cfg, 0, sizeof(m_algo_cfg));
memset(m_algo_cfg.scene, 0xFF, STE_IMAGE_HEIGH*STE_IMAGE_WIDTH);
m_algo_cfg.val_sense = GetPrivateProfileInt(_T("SMOKETRACE"), _T("sensitivity"), 2, algo_cfg_path);
m_algo_cfg.val_delay = GetPrivateProfileInt(_T("SMOKETRACE"), _T("delay"), 2, algo_cfg_path);
m_algo_cfg.val_fov = GetPrivateProfileInt(_T("SMOKETRACE"), _T("fov"), 1, algo_cfg_path);
m_algo_cfg.val_static_det = GetPrivateProfileInt(_T("SMOKETRACE"), _T("sdet"), 1, algo_cfg_path);
m_algo_cfg.alarm_delay = GetPrivateProfileInt(_T("SMOKETRACE"), _T("alarmdelay"), 1, algo_cfg_path);
video_file_info_frame = 0;
video_file_info_fps = 25;
video_file_info_fourcc = 0;
video_file_info_width = 0;
video_file_info_height = 0;
//清空交换内存
m_proc_result_buf.target_set.num = 0;
m_proc_result_buf.event_set.num = 0;
m_proc_result_buf.frame_index = 0;
m_proc_result_buf.fps = 0;
m_trigger_snatch_time = 0;
m_trigger_index = 0;
//抓拍参数
m_snatch_count =0 ;
m_snatch_intertime = 0;
m_snatch_pretime = 0;
m_start_time = 0;
//枚举所有有效地摄像机
//m_combo_list_device.ResetContent();
TCHAR szDeviceName[80];
TCHAR szDeviceVersion[80];
for (int wIndex = 0; wIndex < 10; wIndex++)
{
if (capGetDriverDescription (wIndex, szDeviceName,
sizeof (szDeviceName), szDeviceVersion,
sizeof (szDeviceVersion)))
{
m_combo_list_device.AddString(szDeviceName);
}
}
if (m_combo_list_device.GetCount()>0)
{
m_combo_list_device.SetCurSel(0);
}
else
{
AfxMessageBox(_T("Error!You have no installed video capture device!"));
}
Invalidate();
}
int _zbar_video_open (zbar_video_t *vdo,
const char *dev)
{
video_state_t *state = vdo->state;
if(!state)
state = vdo->state = calloc(1, sizeof(video_state_t));
int reqid = -1;
if((!strncmp(dev, "/dev/video", 10) ||
!strncmp(dev, "\\dev\\video", 10)) &&
dev[10] >= '0' && dev[10] <= '9' && !dev[11])
reqid = dev[10] - '0';
else if(strlen(dev) == 1 &&
dev[0] >= '0' && dev[0] <= '9')
reqid = dev[0] - '0';
zprintf(6, "searching for camera: %s (%d)\n", dev, reqid);
char name[MAX_NAME], desc[MAX_NAME];
int devid;
for(devid = 0; devid < MAX_DRIVERS; devid++) {
if(!capGetDriverDescription(devid, name, MAX_NAME, desc, MAX_NAME)) {
/* FIXME TBD error */
zprintf(6, " [%d] not found...\n", devid);
continue;
}
zprintf(6, " [%d] %.100s - %.100s\n", devid, name, desc);
if((reqid >= 0)
? devid == reqid
: !strncmp(dev, name, MAX_NAME))
break;
}
if(devid >= MAX_DRIVERS)
return(err_capture_str(vdo, SEV_ERROR, ZBAR_ERR_INVALID, __func__,
"video device not found '%s'", dev));
if(!state->captured)
state->captured = CreateEvent(NULL, 0, 0, NULL);
else
ResetEvent(state->captured);
if(_zbar_thread_start(&state->thread, vfw_capture_thread, vdo, NULL))
return(-1);
/* FIXME error */
assert(state->hwnd);
if(!capDriverConnect(state->hwnd, devid)) {
_zbar_thread_stop(&state->thread, NULL);
return(err_capture_str(vdo, SEV_ERROR, ZBAR_ERR_INVALID, __func__,
"failed to connect to camera '%s'", dev));
}
zprintf(1, "opened camera: %.60s (%d) (thr=%04lx)\n",
name, devid, _zbar_thread_self());
if(vfw_probe(vdo)) {
_zbar_thread_stop(&state->thread, NULL);
return(-1);
}
return(0);
}
