analogtv_init();
it=(analogtv *)calloc(1,sizeof(analogtv));
+ if (!it) return 0;
it->dpy=dpy;
it->window=window;
float *raw_rgb_end=raw_rgb_start+3*it->subwidth;
float *rrp;
+ if (! raw_rgb_start) return;
analogtv_setup_frame(it);
analogtv_set_demod(it);