static int get_n_frs(Image_File *ifp)
{
int n_frames=0;
char *pixels;
ImageDesc *idp;
Boolean moreframes = TRUE;
#ifdef QUIP_DEBUG
printf("get_n_frs: IN\n");
#endif /* QUIP_DEBUG */
idp = ifp->hdr->idp;
pixels = (char *)malloc(idp->Size * sizeof(char));
/* get frames until the movie ends */
while (moreframes) {
/* GetMPEGFrame returns FALSE after last frame is decoded */
moreframes = GetMPEGFrame(pixels);
n_frames++;
}
free(pixels);
if(verbose) printf("n_frames calculated: %d\n", n_frames);
RewindMPEG (ifp->if_fp, idp);
#ifdef QUIP_DEBUG
printf("get_n_frs: OUT\n");
#endif /* QUIP_DEBUG */
return n_frames;
}
static void
malib_mpegfile_get_next_frame (MalibMpegFile* mpegfile, MalibFrame* frame)
{
unsigned int i;
unsigned char* buf = mpegfile->pixels;
struct timeval* tp = &(((MalibSource*) mpegfile) -> tp);
/* the flag whether we need to create new image */
int need_increment = 0;
g_return_if_fail (mpegfile && frame);
/* GetMPEGFrame returns TRUE if more frames are still remaining */
MALIB_OBJECT_COUNT_REFERENCES (mpegfile, need_increment);
if (need_increment)
{
int flag = GetMPEGFrame (buf);
/* Mark timestamp at the moment of capturing */
gettimeofday (tp, NULL);
if (flag != TRUE)
{
RewindMPEG (mpegfile->fp, &mpegfile->img);
}
}
/* copy data from buf into frame->data with re-allocation */
for(i = 0; i < mpegfile->img.Size/4; i++) {
*((int*)frame->data + i*3) = (int) *(buf+i*4);
*((int*)frame->data + i*3+1) = (int) *(buf+i*4+1);
*((int*)frame->data + i*3+2) = (int) *(buf+i*4+2);
}
/* copy timestamp into following frames */
frame->timestamp . tv_sec = tp -> tv_sec;
frame->timestamp . tv_usec = tp -> tv_usec;
}
