#include "avcodec.h"
#include "h261.h"
-#define IS_FIL(a) ((a)&MB_TYPE_H261_FIL)
+#define IS_FIL(a) ((a) & MB_TYPE_H261_FIL)
-uint8_t ff_h261_rl_table_store[2][2*MAX_RUN + MAX_LEVEL + 3];
+uint8_t ff_h261_rl_table_store[2][2 * MAX_RUN + MAX_LEVEL + 3];
-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];
+static void h261_loop_filter(uint8_t *src, int stride)
+{
+ int x, y, xy, yz;
+ int temp[64];
- if(!(IS_FIL (h->mtype)))
+ 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)))
+ return;
+
+ h261_loop_filter(dest_y, linesize);
+ h261_loop_filter(dest_y + 8, linesize);
+ h261_loop_filter(dest_y + 8 * linesize, linesize);
+ h261_loop_filter(dest_y + 8 * linesize + 8, linesize);
+ h261_loop_filter(dest_cb, uvlinesize);
+ h261_loop_filter(dest_cr, uvlinesize);
+}
+
+av_cold void ff_h261_common_init(void)
+{
+ static int done = 0;
+
+ if (done)
return;
- s->dsp.h261_loop_filter(dest_y , linesize);
- s->dsp.h261_loop_filter(dest_y + 8, linesize);
- s->dsp.h261_loop_filter(dest_y + 8 * linesize , linesize);
- s->dsp.h261_loop_filter(dest_y + 8 * linesize + 8, linesize);
- s->dsp.h261_loop_filter(dest_cb, uvlinesize);
- s->dsp.h261_loop_filter(dest_cr, uvlinesize);
+ ff_rl_init(&ff_h261_rl_tcoeff, ff_h261_rl_table_store);
+ done = 1;
}