+ /* high quality capture mode requires a stream restart */
+ if (dev->cap_parm[fh->channel].capturemode
+ != sp->parm.capture.capturemode && res_locked(fh->dev, fh))
+ return -EBUSY;
+ def_num = (fh->mode.format == FORMAT_NTSC) ? 1001 : 1000;
+ def_dem = (fh->mode.format == FORMAT_NTSC) ? 30000 : 25000;
+ if (def_dem != sp->parm.capture.timeperframe.denominator)
+ sp->parm.capture.timeperframe.numerator = def_num;
+ else if (sp->parm.capture.timeperframe.numerator <= def_num)
+ sp->parm.capture.timeperframe.numerator = def_num;
+ else if (sp->parm.capture.timeperframe.numerator <= (def_num * 2)) {
+ sp->parm.capture.timeperframe.numerator = def_num * 2;
+ fdec = FDEC_2;
+ } else if (sp->parm.capture.timeperframe.numerator <= (def_num * 3)) {
+ sp->parm.capture.timeperframe.numerator = def_num * 3;
+ fdec = FDEC_3;
+ } else {
+ sp->parm.capture.timeperframe.numerator = def_num * 5;
+ fdec = FDEC_5;
+ }
+ fh->mode.fdec = fdec;
+ sp->parm.capture.timeperframe.denominator = def_dem;
+ s2255_set_mode(dev, fh->channel, &fh->mode);
+ dprintk(4, "%s capture mode, %d timeperframe %d/%d, fdec %d\n",
+ __func__,
+ sp->parm.capture.capturemode,
+ sp->parm.capture.timeperframe.numerator,
+ sp->parm.capture.timeperframe.denominator, fdec);
+ return 0;
+}