static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
{
- int i, n;
+ unsigned i, n;
+ int progressive = 0;
+ int match = 0;
dprintk(2, "av7110:%p, \n", av7110);
return -EBUSY;
}
+ /* search in buf for instances of 00 00 01 b5 1? */
+ for (i = 0; i < len; i++) {
+ unsigned char c;
+ if (get_user(c, buf + i))
+ return -EFAULT;
+ if (match == 5) {
+ progressive = c & 0x08;
+ match = 0;
+ }
+ if (c == 0x00) {
+ match = (match == 1 || match == 2) ? 2 : 1;
+ continue;
+ }
+ switch (match++) {
+ case 2: if (c == 0x01)
+ continue;
+ break;
+ case 3: if (c == 0xb5)
+ continue;
+ break;
+ case 4: if ((c & 0xf0) == 0x10)
+ continue;
+ break;
+ }
+ match = 0;
+ }
+
/* setting n always > 1, fixes problems when playing stillframes
consisting of I- and P-Frames */
n = MIN_IFRAME / len + 1;
dvb_play(av7110, buf, len, 0, 1);
av7110_ipack_flush(&av7110->ipack[1]);
- return 0;
+
+ if (progressive)
+ return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
+ else
+ return 0;
}