int XviDDec::DecodeXviD(BYTE *inmemory, int inmemsize,
int *rest, BYTE *outmemory,DWORD pitch)
{
int used_bytes = 0;
xvid_dec_stats_t xvid_dec_stats;
if(bInit){
mp4_buffer = inmemory;
useful_bytes = inmemsize;
mp4_ptr = mp4_buffer;
bInit = FALSE;
}
out_buffer = outmemory;
if(bContinue){
useful_bytes += inmemsize;
bContinue = FALSE;
}
if(FALSE==bFlash){
do{
/* Decode frame */
used_bytes = dec_main(mp4_ptr, out_buffer, useful_bytes, &xvid_dec_stats,pitch);
/* Update buffer pointers */
if(used_bytes > 0) {
mp4_ptr += used_bytes;
useful_bytes -= used_bytes;
/* Total size */
totalsize += used_bytes;
}
}while((xvid_dec_stats.type<XVID_TYPE_IVOP || xvid_dec_stats.type>XVID_TYPE_BVOP) && useful_bytes>0);
if(useful_bytes<=0)
bFlash = TRUE;
}else{
do {
used_bytes = dec_main(NULL, out_buffer, -1, &xvid_dec_stats,pitch);
}while(used_bytes>=0 && xvid_dec_stats.type <= 0);
if (used_bytes < 0){
bFlash = FALSE;
return XviD_DEC_END;
}
}
filenr++;
if (mp4_ptr > mp4_buffer + buffer_size*3/4) {
*rest = (mp4_buffer + buffer_size - mp4_ptr);
// Move data if needed
if (*rest > 0)
memcpy(mp4_buffer, mp4_ptr, *rest);
// Update mp4_ptr
mp4_ptr = mp4_buffer;
bContinue = TRUE;
return XviD_DEC_NEEDMORE;
}
return XviD_DEC_CONTINUE;
}
// Function name : PASCAL VideoCallbackProc
// Description : Encode the captured frame
// Return type : LRESULT FAR
// Argument : HWND hWnd
// Argument : LPVIDEOHDR lpVHdr
LRESULT FAR PASCAL VideoCallbackProc(HWND hWnd, LPVIDEOHDR lpVHdr)
{
unsigned char *bufi, *buf;
int type=0;
int quant=0;
int declen=0;
int enclen=0;
bufi = new unsigned char[lpVHdr->dwBytesUsed+40]; //original image
buf = new unsigned char[lpVHdr->dwBytesUsed]; //coded stream
memcpy((void *)(bufi), lpVHdr->lpData, lpVHdr->dwBytesUsed);
unsigned char *buf1;
buf1 = buf;
if (m_vfwState==ENCDEC) {
//Encode
buf1 = (unsigned char*)ICSeqCompressFrame(&pc,0,bufi, &IsKeyFrame,&FrameSize);
//enc_main(bufi, buf, (int *)&FrameSize, &IsKeyFrame, -1);
////////////////////////////////
if (bSaveAVI){
AVIStreamSetFormat(pMainFrame->ps,pMainFrame->m_Frame++,lpbiTmp,sizeof(BITMAPINFO));
AVIStreamWrite(pMainFrame->ps,pMainFrame->m_Frame, 1, (LPBYTE)buf1,
lpbiTmp->bmiHeader.biSizeImage,AVIIF_KEYFRAME,NULL,NULL);
}
////////////////////////////////
//Decode
ICDecompress(hic2,0,&lpbiTmp->bmiHeader,buf1,&lpbiOut->bmiHeader,&bufo[40]);
} else {
enc_main(bufi,buf, &IsKeyFrame,&type,&quant,&enclen);
declen = dec_main(buf, bufi, enclen,lpbiIn->bmiHeader.biWidth);
pMainFrame->conv.YV12_to_RGB24(bufi,
bufi+(lpbiIn->bmiHeader.biWidth*lpbiIn->bmiHeader.biHeight),
bufi+(lpbiIn->bmiHeader.biWidth*lpbiIn->bmiHeader.biHeight*5/4),
&bufo[40],
lpbiIn->bmiHeader.biWidth,
lpbiIn->bmiHeader.biHeight);
}
pMainFrame->GetActiveView()->InvalidateRect(NULL,FALSE);
delete bufi;
delete buf;
return (LRESULT) TRUE;
}
void *dec_thread(void *data)
{
struct argst *args = (struct argst *) data;
return (void *)dec_main(args->argc, args->argv);
}
void main(void)
{
const char *outrecfilename = "F:\\╡Бйтнд╪Ч\\test3.yuv";
const char *filename = "F:\\╡Бйтнд╪Ч\\test.m4v";
int frame, size, got_picture;
FILE *fin, *fout;
uint8_t inbuf[INBUF_SIZE ], *inbuf_ptr;
int v_YuvInfo[5];
int32 used_bytes;
xvid_dec_stats_t xvid_dec_stats;
char *pZoom;
int i;
int h;
fin = fopen(filename, "rb");
if (!fin)
{
fprintf(stderr, "could not open %s\n", filename);
exit(1);
}
fout = fopen(outrecfilename, "wb");
if (!fin)
{
fprintf(stderr, "could not open %s\n", outrecfilename);
exit(1);
}
dec_init(0, 0);
size=0;
used_bytes=0;
i=0;
while (1)
{
size += fread(inbuf+size, 1, INBUF_SIZE-size, fin);
inbuf_ptr = inbuf;
used_bytes=dec_main(inbuf_ptr,
v_YuvInfo,
size, &xvid_dec_stats, pZoom,
0);
if(used_bytes>0 && xvid_dec_stats.type>0)
{
for(h=0;h< YDIM;h++)
fwrite(v_YuvInfo[0]+v_YuvInfo[3]*h, 1, XDIM, fout );
for(h=0;h<YDIM/2;h++)
fwrite(v_YuvInfo[1]+v_YuvInfo[3]*h/2, 1, XDIM/2, fout );
for(h=0;h<YDIM/2;h++)
fwrite(v_YuvInfo[2]+v_YuvInfo[3]*h/2, 1, XDIM/2, fout );
}
if(used_bytes>0)
{
size -= used_bytes;
inbuf_ptr += used_bytes;
memmove(inbuf, inbuf_ptr, size);
}
i++;
if(i>500)break;
}
dec_stop();
fclose(fin);
fclose(fout);
}
