+ for (x = 0; x < 8; x++) {
+ temp[x] = 4 * src[x];
+ temp[x + 7 * 8] = 4 * src[x + 7 * stride];
+ }
+ for (y = 1; y < 7; y++) {
+ for (x = 0; x < 8; x++) {
+ xy = y * stride + x;
+ yz = y * 8 + x;
+ temp[yz] = src[xy - stride] + 2 * src[xy] + src[xy + stride];
+ }
+ }
+
+ for (y = 0; y < 8; y++) {
+ src[y * stride] = (temp[y * 8] + 2) >> 2;
+ src[y * stride + 7] = (temp[y * 8 + 7] + 2) >> 2;
+ for (x = 1; x < 7; x++) {
+ xy = y * stride + x;
+ yz = y * 8 + x;
+ src[xy] = (temp[yz - 1] + 2 * temp[yz] + temp[yz + 1] + 8) >> 4;
+ }
+ }
+}
+
+void ff_h261_loop_filter(MpegEncContext *s)
+{
+ H261Context *h = (H261Context *)s;
+ const int linesize = s->linesize;
+ const int uvlinesize = s->uvlinesize;
+ uint8_t *dest_y = s->dest[0];
+ uint8_t *dest_cb = s->dest[1];
+ uint8_t *dest_cr = s->dest[2];
+
+ if (!(IS_FIL(h->mtype)))