/* 对捕获的视频做编码、解码处理 */
void CMainFrame::OnVfwCodec()
{
// TODO: 在此添加命令处理程序代码
DWORD fsize;
/* VCM initialization */
hic1 = ICOpen(mmioFOURCC('v','i','d','c'), mmioFOURCC('X','V','I','D'), ICMODE_COMPRESS);
if (hic1 == 0)
AfxMessageBox(_T("打开编码器失败!"));
hic2 = ICOpen(mmioFOURCC('v','i','d','c'), mmioFOURCC('X','V','I','D'), ICMODE_DECOMPRESS);
if (hic2 == 0)
AfxMessageBox(_T("打开解码器失败!"));
fsize = capGetVideoFormatSize(m_hWndCap);
capGetVideoFormat(m_hWndCap, lpbiIn, fsize);
InitAVIWriteOpt();
lpbiOut->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
lpbiOut->bmiHeader.biWidth = lpbiIn->bmiHeader.biWidth;
lpbiOut->bmiHeader.biHeight = lpbiIn->bmiHeader.biHeight;
lpbiOut->bmiHeader.biPlanes = 1;
lpbiOut->bmiHeader.biBitCount = 24;
lpbiOut->bmiHeader.biCompression = BI_RGB;
lpbiOut->bmiHeader.biSizeImage = lpbiIn->bmiHeader.biWidth*lpbiIn->bmiHeader.biHeight*3;
lpbiOut->bmiHeader.biXPelsPerMeter = 0;
lpbiOut->bmiHeader.biYPelsPerMeter = 0;
lpbiOut->bmiHeader.biClrUsed = 0;
lpbiOut->bmiHeader.biClrImportant = 0;
// get the format of the input video
if (ICCompressGetFormat(hic1,lpbiIn,lpbiTmp)!=ICERR_OK)
AfxMessageBox(_T("编码器不能读取输出格式！"));
if (ICCompressQuery(hic1,lpbiIn,lpbiTmp) != ICERR_OK)
AfxMessageBox(_T("不能处理编码器输入输出格式！"));
// set the parameters of the CODEC
pc.cbSize = sizeof(COMPVARS); //结构体大小
pc.dwFlags = ICMF_COMPVARS_VALID;
pc.hic = hic1; //编码器句柄
pc.fccType = mmioFOURCC('v','i','d','c');
pc.fccHandler = mmioFOURCC('X','V','I','D');
pc.lpbiOut = lpbiTmp; //输出格式
pc.lKey = 100; //key帧频率
pc.lQ = 10000; //图像质量
if(!ICSeqCompressFrameStart(&pc, lpbiIn))
return;
ICDecompressBegin(hic2,lpbiTmp,lpbiOut);
m_vfwState = ENCDEC;
}
static void test_ICSeqCompress(void)
{
/* The purpose of this test is to validate sequential frame compressing
* functions. The MRLE codec will be used because Wine supports it and
* it is present in any Windows.
*/
HIC h;
DWORD err, vidc = mmioFOURCC('v','i','d','c'), mrle = mmioFOURCC('m', 'r', 'l', 'e');
DWORD i;
LONG frame_len;
BOOL key_frame, ret;
char *frame;
COMPVARS pc;
struct { BITMAPINFOHEADER header; RGBQUAD map[256]; }
input_header = { {sizeof(BITMAPINFOHEADER), 32, 1, 1, 8, 0, 32*8, 0, 0, 256, 256},
{{255,0,0}, {0,255,0}, {0,0,255}, {255,255,255}}};
PBITMAPINFO bitmap = (PBITMAPINFO) &input_header;
static BYTE input[32] = {1,2,3,3,3,3,2,3,1};
static const BYTE output_kf[] = {1,1,1,2,4,3,0,3,2,3,1,0,23,0,0,0,0,1}, /* key frame*/
output_nkf[] = {0,0,0,1}; /* non key frame */
h = ICOpen(vidc, mrle, ICMODE_COMPRESS);
ok(h != NULL, "Expected non-NULL\n");
pc.cbSize = sizeof(pc);
pc.dwFlags = ICMF_COMPVARS_VALID;
pc.fccType = vidc;
pc.fccHandler = mrle;
pc.hic = h;
pc.lpbiIn = NULL;
pc.lpbiOut = NULL;
pc.lpBitsOut = pc.lpBitsPrev = pc.lpState = NULL;
pc.lQ = ICQUALITY_DEFAULT;
pc.lKey = 1;
pc.lDataRate = 300;
pc.lpState = NULL;
pc.cbState = 0;
ret = ICSeqCompressFrameStart(&pc, bitmap);
ok(ret == TRUE, "Expected TRUE\n");
/* Check that reserved pointers were allocated */
ok(pc.lpbiIn != NULL, "Expected non-NULL\n");
ok(pc.lpbiOut != NULL, "Expected non-NULL\n");
for(i = 0; i < 9; i++)
{
frame_len = 0;
frame = ICSeqCompressFrame(&pc, 0, input, &key_frame, &frame_len);
ok(frame != NULL, "Frame[%d]: Expected non-NULL\n", i);
if (frame_len == sizeof(output_nkf))
ok(!memcmp(output_nkf, frame, frame_len), "Frame[%d]: Contents do not match\n", i);
else if (frame_len == sizeof(output_kf))
ok(!memcmp(output_kf, frame, frame_len), "Frame[%d]: Contents do not match\n", i);
else
ok(0, "Unknown frame size of %d byten\n", frame_len);
}
ICSeqCompressFrameEnd(&pc);
ICCompressorFree(&pc);
/* ICCompressorFree already closed the HIC */
err = ICClose(h);
ok(err == ICERR_BADHANDLE, "Expected -8, got %d\n", err);
}
int imFileFormatAVI::WriteImageInfo()
{
if (dib)
{
if (dib->bmih->biWidth != width || dib->bmih->biHeight != height ||
imColorModeSpace(file_color_mode) != imColorModeSpace(user_color_mode))
return IM_ERR_DATA;
return IM_ERR_NONE; // parameters can be set only once
}
// force bottom up orientation
this->file_data_type = IM_BYTE;
this->file_color_mode = imColorModeSpace(this->user_color_mode);
int bpp;
if (this->file_color_mode == IM_RGB)
{
this->file_color_mode |= IM_PACKED;
bpp = 24;
if (imColorModeHasAlpha(this->user_color_mode))
{
this->file_color_mode |= IM_ALPHA;
bpp = 32;
this->rmask = 0x00FF0000;
this->roff = 16;
this->gmask = 0x0000FF00;
this->goff = 8;
this->bmask = 0x000000FF;
this->boff = 0;
}
}
else
bpp = 8;
this->line_buffer_extra = 4; // room enough for padding
imAttribTable* attrib_table = AttribTable();
const void* attrib_data = attrib_table->Get("FPS");
if (attrib_data)
fps = *(float*)attrib_data;
else
fps = 15;
if (this->compression[0] == 0 || imStrEqual(this->compression, "NONE"))
this->use_compressor = 0;
else
this->use_compressor = 1;
dib = imDibCreate(width, height, bpp);
if (use_compressor)
{
memset(&compvars, 0, sizeof(COMPVARS));
compvars.cbSize = sizeof(COMPVARS);
if (imStrEqual(this->compression, "CUSTOM"))
{
if (ICCompressorChoose(NULL, ICMF_CHOOSE_DATARATE | ICMF_CHOOSE_KEYFRAME, dib->dib, NULL, &compvars, "Choose Compression") == FALSE)
return IM_ERR_COMPRESS;
}
else
{
compvars.dwFlags = ICMF_COMPVARS_VALID;
compvars.fccType = ICTYPE_VIDEO;
int* attrib = (int*)attrib_table->Get("KeyFrameRate");
if (attrib)
compvars.lKey = *attrib;
else
compvars.lKey = 15; // same defaults of the dialog
attrib = (int*)attrib_table->Get("DataRate");
if (attrib)
compvars.lDataRate = *attrib / 8;
else
compvars.lDataRate = 300; // same defaults of the dialog
attrib = (int*)attrib_table->Get("AVIQuality");
if (attrib)
compvars.lQ = *attrib;
else
compvars.lQ = (DWORD)ICQUALITY_DEFAULT;
if (imStrEqual(this->compression, "RLE"))
compvars.fccHandler = mmioFOURCC('M','R','L','E');
else if (imStrEqual(this->compression, "CINEPACK"))
compvars.fccHandler = mmioFOURCC('c','v','i','d');
else
compvars.fccHandler = mmioFOURCC(compression[0],compression[1],compression[2],compression[3]);
compvars.hic = ICOpen(ICTYPE_VIDEO, compvars.fccHandler, ICMODE_COMPRESS);
}
if (compvars.hic == NULL)
use_compressor = 0;
}
AVISTREAMINFO streaminfo;
memset(&streaminfo, 0, sizeof(AVISTREAMINFO));
streaminfo.fccType = streamtypeVIDEO;
streaminfo.dwScale = 1000;
streaminfo.dwRate = (DWORD)(fps*1000);
SetRect(&streaminfo.rcFrame, 0, 0, width, height);
if (use_compressor)
{
streaminfo.fccHandler = compvars.fccHandler;
streaminfo.dwQuality = compvars.lQ;
}
else
{
streaminfo.fccHandler = mmioFOURCC('D','I','B',' ');
streaminfo.dwQuality = (DWORD)ICQUALITY_DEFAULT;
}
/* creates a new stream in the new file */
HRESULT hr = AVIFileCreateStream(file, &stream, &streaminfo);
if (hr != 0)
return IM_ERR_ACCESS;
/* set stream format */
if (use_compressor)
{
if (!ICSeqCompressFrameStart(&compvars, dib->bmi))
return IM_ERR_COMPRESS;
hr = AVIStreamSetFormat(stream, 0, compvars.lpbiOut, dib->size - dib->bits_size);
}
else
hr = AVIStreamSetFormat(stream, 0, dib->dib, dib->size - dib->bits_size);
if (hr != 0)
return IM_ERR_ACCESS;
return IM_ERR_NONE;
}
long __stdcall DlgProc ( HWND hWnd , unsigned msg , unsigned wParam , long lParam )
{
switch(msg)
{
case WM_INITDIALOG:
//hEdit = GetDlgItem( hWnd , I_EDIT );
//GetClientRect( hEdit , &rect );
hWndCap = capCreateCaptureWindow ( NULL, WS_CHILD | WS_VISIBLE , 0, 0, 320, 240, hWnd, 1235 );
//hWndCap = capCreateCaptureWindow ( NULL, WS_CHILD | WS_VISIBLE , 0, 0, (rect.right-rect.left ), (rect.bottom-rect.top), hEdit, 1235);
// вручную заполняем структуру CapVar
ZeroMemory( &CapVar, sizeof(COMPVARS) );
CapVar.cbSize = sizeof(COMPVARS);
CapVar.dwFlags = ICMF_COMPVARS_VALID;
CapVar.cbState = 0;
CapVar.fccHandler = mmioFOURCC( 'x', '2', '6', '4' );
CapVar.fccType = ICTYPE_VIDEO;
// открываем декомпрессор (долго)
CapVar.hic = ICOpen( ICTYPE_VIDEO, CapVar.fccHandler, ICMODE_COMPRESS );
hThread = CreateThread( NULL, 0, (LPTHREAD_START_ROUTINE)SendThread, NULL, 0, 0 );
return -1 ;
case WM_COMMAND:
switch(LOWORD(wParam))
{
case I_BUTTON_CONN :
if( !capDriverConnect( hWndCap, 0 ) )
{
EndDialog ( hWnd, 0 );
return -1;
}
capCaptureGetSetup( hWndCap, &CapParms, sizeof(CAPTUREPARMS) );
CapParms.dwRequestMicroSecPerFrame = 66000;
CapParms.fLimitEnabled = FALSE;
CapParms.fCaptureAudio = FALSE;
CapParms.fMCIControl = FALSE;
CapParms.fYield = TRUE;
CapParms.vKeyAbort = VK_ESCAPE;
CapParms.fAbortLeftMouse = FALSE;
CapParms.fAbortRightMouse = FALSE;
capCaptureSetSetup( hWndCap, &CapParms, sizeof(CAPTUREPARMS) );
capPreviewScale( hWndCap, 1 );
capPreviewRate( hWndCap, 66 );
capPreviewScale( hWndCap, FALSE );
capPreview( hWndCap, 1 );
//added by jimmy
// OPTIONAL STEP: Setup resolution
capGetVideoFormat( hWndCap, &InputBmpInfo ,sizeof(InputBmpInfo) );
//InputBmpInfo.bmiHeader.biWidth = 320; //(rect.right-rect.left );
//InputBmpInfo.bmiHeader.biHeight = 240; //(rect.bottom-rect.top);
//InputBmpInfo.bmiHeader.biBitCount = 24;
capSetVideoFormat( hWndCap, &InputBmpInfo, sizeof(InputBmpInfo) );
//capDriverDisconnect (hWndCap, 0);//Can we do better?
//capDriverConnect (hWndCap, 0);
capSetCallbackOnFrame( hWndCap, FrameCallBack );
if(CapVar.hic > 0 )
{
OutFormatSize = ICCompressGetFormatSize( CapVar.hic, &InputBmpInfo.bmiHeader ); // BITMAPINFO возвращает размер структуры исходных данных InputBmpInfo
ICCompressGetFormat( CapVar.hic, &InputBmpInfo.bmiHeader, &OutputBmpInfo.bmiHeader ); // заполняет структуру получаемых данных OutputBmpInfo
OutBufferSize = ICCompressGetSize( CapVar.hic, &InputBmpInfo.bmiHeader, &OutputBmpInfo.bmiHeader ); // максимальный размер одного сжатого кадра (полученного)
ICSeqCompressFrameStart( &CapVar, &InputBmpInfo ); // начало сжатия
}
break;
case I_BUTTON_EXIT :
ICSeqCompressFrameEnd(&CapVar); // конец сжатия
ICCompressorFree(&CapVar);
ICClose(CapVar.hic);
capPreview( hWndCap , false );
capDriverDisconnect( hWndCap );
EndDialog ( hWnd , 0 ) ;
break;
}
return -1 ;
case WM_CLOSE :
ICSeqCompressFrameEnd(&CapVar); // конец сжатия
ICCompressorFree(&CapVar);
ICClose(CapVar.hic);
capPreview( hWndCap , false );
capDriverDisconnect( hWndCap );
EndDialog ( hWnd , 0 ) ;
return -1 ;
}
return 0 ;
}
