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authorMichael Niedermayer <michaelni@gmx.at>2006-07-01 22:52:56 +0000
committerMichael Niedermayer <michaelni@gmx.at>2006-07-01 22:52:56 +0000
commit0abc2e73f864d190e5c9b5841f3bccf64f8cee0e (patch)
tree60e2361d3f50d6fb81083a0f872dfb2c7ff89a7f
parent91c58c944fb7dcd0ecc7b8cf9ffd879bc7b1aa06 (diff)
downloadffmpeg-0abc2e73f864d190e5c9b5841f3bccf64f8cee0e.tar.gz
new files for the CAVS decoder by (Stefan Gehrer <stefan gehrer gmx de)
Originally committed as revision 5567 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat
-rw-r--r--libavcodec/cavs.c1550
-rw-r--r--libavcodec/cavsdata.h613
-rw-r--r--libavcodec/cavsdsp.c511
-rw-r--r--libavcodec/cavsdsp.h95
4 files changed, 2769 insertions, 0 deletions
diff --git a/libavcodec/cavs.c b/libavcodec/cavs.c
new file mode 100644
index 0000000000..c8bf89f966
--- /dev/null
+++ b/libavcodec/cavs.c
@@ -0,0 +1,1550 @@
+/*
+ * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
+ * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "avcodec.h"
+#include "bitstream.h"
+#include "golomb.h"
+#include "mpegvideo.h"
+#include "cavsdata.h"
+
+typedef struct {
+ MpegEncContext s;
+ Picture picture; //currently decoded frame
+ Picture DPB[2]; //reference frames
+ int dist[2]; //temporal distances from current frame to ref frames
+ int profile, level;
+ int aspect_ratio;
+ int mb_width, mb_height;
+ int pic_type;
+ int progressive;
+ int pic_structure;
+ int skip_mode_flag;
+ int loop_filter_disable;
+ int alpha_offset, beta_offset;
+ int ref_flag;
+ int mbx, mby;
+ int flags;
+ int stc;
+ uint8_t *cy, *cu, *cv;
+ int left_qp;
+ uint8_t *top_qp;
+
+ /* mv motion vector cache
+ 0: D3 B2 B3 C2
+ 4: A1 X0 X1 -
+ 8: A3 X2 X3 -
+
+ X are the vectors in the current macroblock (5,6,9,10)
+ A is the macroblock to the left (4,8)
+ B is the macroblock to the top (1,2)
+ C is the macroblock to the top-right (3)
+ D is the macroblock to the top-left (0)
+
+ the same is repeated for backward motion vectors */
+ vector_t mv[2*4*3];
+ vector_t *top_mv[2];
+ vector_t *col_mv;
+
+ /* luma pred mode cache
+ 0: -- B2 B3
+ 3: A1 X0 X1
+ 6: A3 X2 X3 */
+ int pred_mode_Y[3*3];
+ int *top_pred_Y;
+ int l_stride, c_stride;
+ int luma_scan[4];
+ int qp;
+ int qp_fixed;
+ int cbp;
+
+ /* intra prediction is done with un-deblocked samples
+ they are saved here before deblocking the MB */
+ uint8_t *top_border_y, *top_border_u, *top_border_v;
+ uint8_t left_border_y[16], left_border_u[8], left_border_v[8];
+ uint8_t topleft_border_y, topleft_border_u, topleft_border_v;
+
+ void (*intra_pred_l[8])(uint8_t *d,uint8_t *top,uint8_t *left,int stride);
+ void (*intra_pred_c[7])(uint8_t *d,uint8_t *top,uint8_t *left,int stride);
+ uint8_t *col_type_base;
+ uint8_t *col_type;
+ int sym_factor;
+ int direct_den[2];
+ int scale_den[2];
+ int got_keyframe;
+} AVSContext;
+
+/*****************************************************************************
+ *
+ * in-loop deblocking filter
+ *
+ ****************************************************************************/
+
+static inline int get_bs_p(vector_t *mvP, vector_t *mvQ) {
+ if((mvP->ref == REF_INTRA) || (mvQ->ref == REF_INTRA))
+ return 2;
+ if(mvP->ref != mvQ->ref)
+ return 1;
+ if( (abs(mvP->x - mvQ->x) >= 4) || (abs(mvP->y - mvQ->y) >= 4) )
+ return 1;
+ return 0;
+}
+
+static inline int get_bs_b(vector_t *mvP, vector_t *mvQ) {
+ if((mvP->ref == REF_INTRA) || (mvQ->ref == REF_INTRA)) {
+ return 2;
+ } else {
+ vector_t *mvPbw = mvP + MV_BWD_OFFS;
+ vector_t *mvQbw = mvQ + MV_BWD_OFFS;
+ if( (abs( mvP->x - mvQ->x) >= 4) ||
+ (abs( mvP->y - mvQ->y) >= 4) ||
+ (abs(mvPbw->x - mvQbw->x) >= 4) ||
+ (abs(mvPbw->y - mvQbw->y) >= 4) )
+ return 1;
+ }
+ return 0;
+}
+
+/* boundary strength (bs) mapping:
+ *
+ * --4---5--
+ * 0 2 |
+ * | 6 | 7 |
+ * 1 3 |
+ * ---------
+ *
+ */
+
+#define SET_PARAMS \
+ alpha = alpha_tab[clip(qp_avg + h->alpha_offset,0,63)]; \
+ beta = beta_tab[clip(qp_avg + h->beta_offset, 0,63)]; \
+ tc = tc_tab[clip(qp_avg + h->alpha_offset,0,63)];
+
+static void filter_mb(AVSContext *h, enum mb_t mb_type) {
+ uint8_t bs[8];
+ int qp_avg, alpha, beta, tc;
+ int i;
+
+ /* save un-deblocked lines */
+ h->topleft_border_y = h->top_border_y[h->mbx*16+15];
+ h->topleft_border_u = h->top_border_u[h->mbx*8+7];
+ h->topleft_border_v = h->top_border_v[h->mbx*8+7];
+ memcpy(&h->top_border_y[h->mbx*16], h->cy + 15* h->l_stride,16);
+ memcpy(&h->top_border_u[h->mbx* 8], h->cu + 7* h->c_stride,8);
+ memcpy(&h->top_border_v[h->mbx* 8], h->cv + 7* h->c_stride,8);
+ for(i=0;i<8;i++) {
+ h->left_border_y[i*2+0] = *(h->cy + 15 + (i*2+0)*h->l_stride);
+ h->left_border_y[i*2+1] = *(h->cy + 15 + (i*2+1)*h->l_stride);
+ h->left_border_u[i] = *(h->cu + 7 + i*h->c_stride);
+ h->left_border_v[i] = *(h->cv + 7 + i*h->c_stride);
+ }
+ if(!h->loop_filter_disable) {
+ /* clear bs */
+ *((uint64_t *)bs) = 0;
+ /* determine bs */
+ switch(mb_type) {
+ case I_8X8:
+ *((uint64_t *)bs) = 0x0202020202020202ULL;
+ break;
+ case P_8X8:
+ case P_8X16:
+ bs[2] = get_bs_p(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X1]);
+ bs[3] = get_bs_p(&h->mv[MV_FWD_X2], &h->mv[MV_FWD_X3]);
+ case P_16X8:
+ bs[6] = get_bs_p(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X2]);
+ bs[7] = get_bs_p(&h->mv[MV_FWD_X1], &h->mv[MV_FWD_X3]);
+ case P_16X16:
+ case P_SKIP:
+ bs[0] = get_bs_p(&h->mv[MV_FWD_A1], &h->mv[MV_FWD_X0]);
+ bs[1] = get_bs_p(&h->mv[MV_FWD_A3], &h->mv[MV_FWD_X2]);
+ bs[4] = get_bs_p(&h->mv[MV_FWD_B2], &h->mv[MV_FWD_X0]);
+ bs[5] = get_bs_p(&h->mv[MV_FWD_B3], &h->mv[MV_FWD_X1]);
+ break;
+ case B_SKIP:
+ case B_DIRECT:
+ case B_8X8:
+ bs[2] = get_bs_b(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X1]);
+ bs[3] = get_bs_b(&h->mv[MV_FWD_X2], &h->mv[MV_FWD_X3]);
+ bs[6] = get_bs_b(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X2]);
+ bs[7] = get_bs_b(&h->mv[MV_FWD_X1], &h->mv[MV_FWD_X3]);
+ case B_FWD_16X16:
+ case B_BWD_16X16:
+ case B_SYM_16X16:
+ bs[0] = get_bs_b(&h->mv[MV_FWD_A1], &h->mv[MV_FWD_X0]);
+ bs[1] = get_bs_b(&h->mv[MV_FWD_A3], &h->mv[MV_FWD_X2]);
+ bs[4] = get_bs_b(&h->mv[MV_FWD_B2], &h->mv[MV_FWD_X0]);
+ bs[5] = get_bs_b(&h->mv[MV_FWD_B3], &h->mv[MV_FWD_X1]);
+ break;
+ default:
+ if(mb_type & 1) { //16X8
+ bs[6] = bs[7] = get_bs_b(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X2]);
+ } else { //8X16
+ bs[2] = bs[3] = get_bs_b(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X1]);
+ }
+ bs[0] = get_bs_b(&h->mv[MV_FWD_A1], &h->mv[MV_FWD_X0]);
+ bs[1] = get_bs_b(&h->mv[MV_FWD_A3], &h->mv[MV_FWD_X2]);
+ bs[4] = get_bs_b(&h->mv[MV_FWD_B2], &h->mv[MV_FWD_X0]);
+ bs[5] = get_bs_b(&h->mv[MV_FWD_B3], &h->mv[MV_FWD_X1]);
+ }
+ if( *((uint64_t *)bs) ) {
+ if(h->flags & A_AVAIL) {
+ qp_avg = (h->qp + h->left_qp + 1) >> 1;
+ SET_PARAMS;
+ h->s.dsp.cavs_filter_lv(h->cy,h->l_stride,alpha,beta,tc,bs[0],bs[1]);
+ h->s.dsp.cavs_filter_cv(h->cu,h->c_stride,alpha,beta,tc,bs[0],bs[1]);
+ h->s.dsp.cavs_filter_cv(h->cv,h->c_stride,alpha,beta,tc,bs[0],bs[1]);
+ }
+ qp_avg = h->qp;
+ SET_PARAMS;
+ h->s.dsp.cavs_filter_lv(h->cy + 8,h->l_stride,alpha,beta,tc,bs[2],bs[3]);
+ h->s.dsp.cavs_filter_lh(h->cy + 8*h->l_stride,h->l_stride,alpha,beta,tc,
+ bs[6],bs[7]);
+
+ if(h->flags & B_AVAIL) {
+ qp_avg = (h->qp + h->top_qp[h->mbx] + 1) >> 1;
+ SET_PARAMS;
+ h->s.dsp.cavs_filter_lh(h->cy,h->l_stride,alpha,beta,tc,bs[4],bs[5]);
+ h->s.dsp.cavs_filter_ch(h->cu,h->c_stride,alpha,beta,tc,bs[4],bs[5]);
+ h->s.dsp.cavs_filter_ch(h->cv,h->c_stride,alpha,beta,tc,bs[4],bs[5]);
+ }
+ }
+ }
+ h->left_qp = h->qp;
+ h->top_qp[h->mbx] = h->qp;
+}
+
+#undef SET_PARAMS
+
+/*****************************************************************************
+ *
+ * spatial intra prediction
+ *
+ ****************************************************************************/
+
+static inline void load_intra_pred_luma(AVSContext *h, uint8_t *top,
+ uint8_t *left, int block) {
+ int i;
+
+ switch(block) {
+ case 0:
+ memcpy(&left[1],h->left_border_y,16);
+ left[0] = left[1];
+ left[17] = left[16];
+ memcpy(&top[1],&h->top_border_y[h->mbx*16],16);
+ top[17] = top[16];
+ top[0] = top[1];
+ if((h->flags & A_AVAIL) && (h->flags & B_AVAIL))
+ left[0] = top[0] = h->topleft_border_y;
+ break;
+ case 1:
+ for(i=0;i<8;i++)
+ left[i+1] = *(h->cy + 7 + i*h->l_stride);
+ memset(&left[9],left[8],9);
+ left[0] = left[1];
+ memcpy(&top[1],&h->top_border_y[h->mbx*16+8],8);
+ if(h->flags & C_AVAIL)
+ memcpy(&top[9],&h->top_border_y[(h->mbx + 1)*16],8);
+ else
+ memset(&top[9],top[8],9);
+ top[17] = top[16];
+ top[0] = top[1];
+ if(h->flags & B_AVAIL)
+ left[0] = top[0] = h->top_border_y[h->mbx*16+7];
+ break;
+ case 2:
+ memcpy(&left[1],&h->left_border_y[8],8);
+ memset(&left[9],left[8],9);
+ memcpy(&top[1],h->cy + 7*h->l_stride,16);
+ top[17] = top[16];
+ left[0] = h->left_border_y[7];
+ top[0] = top[1];
+ if(h->flags & A_AVAIL)
+ top[0] = left[0];
+ break;
+ case 3:
+ for(i=0;i<9;i++)
+ left[i] = *(h->cy + 7 + (i+7)*h->l_stride);
+ memset(&left[9],left[8],9);
+ memcpy(&top[0],h->cy + 7 + 7*h->l_stride,9);
+ memset(&top[9],top[8],9);
+ break;
+ }
+}
+
+static inline void load_intra_pred_chroma(uint8_t *stop, uint8_t *sleft,
+ uint8_t stopleft, uint8_t *dtop,
+ uint8_t *dleft, int stride, int flags) {
+ int i;
+
+ if(flags & A_AVAIL) {
+ for(i=0; i<8; i++)
+ dleft[i+1] = sleft[i];
+ dleft[0] = dleft[1];
+ dleft[9] = dleft[8];
+ }
+ if(flags & B_AVAIL) {
+ for(i=0; i<8; i++)
+ dtop[i+1] = stop[i];
+ dtop[0] = dtop[1];
+ dtop[9] = dtop[8];
+ if(flags & A_AVAIL)
+ dleft[0] = dtop[0] = stopleft;
+ }
+}
+
+static void intra_pred_vert(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int y;
+ uint64_t a = *((uint64_t *)(&top[1]));
+ for(y=0;y<8;y++) {
+ *((uint64_t *)(d+y*stride)) = a;
+ }
+}
+
+static void intra_pred_horiz(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int y;
+ uint64_t a;
+ for(y=0;y<8;y++) {
+ a = left[y+1] * 0x0101010101010101ULL;
+ *((uint64_t *)(d+y*stride)) = a;
+ }
+}
+
+static void intra_pred_dc_128(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int y;
+ uint64_t a = 0x8080808080808080ULL;
+ for(y=0;y<8;y++)
+ *((uint64_t *)(d+y*stride)) = a;
+}
+
+static void intra_pred_plane(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int x,y,ia;
+ int ih = 0;
+ int iv = 0;
+ uint8_t *cm = cropTbl + MAX_NEG_CROP;
+
+ for(x=0; x<4; x++) {
+ ih += (x+1)*(top[5+x]-top[3-x]);
+ iv += (x+1)*(left[5+x]-left[3-x]);
+ }
+ ia = (top[8]+left[8])<<4;
+ ih = (17*ih+16)>>5;
+ iv = (17*iv+16)>>5;
+ for(y=0; y<8; y++)
+ for(x=0; x<8; x++)
+ d[y*stride+x] = cm[(ia+(x-3)*ih+(y-3)*iv+16)>>5];
+}
+
+#define LOWPASS(ARRAY,INDEX) \
+ (( ARRAY[(INDEX)-1] + 2*ARRAY[(INDEX)] + ARRAY[(INDEX)+1] + 2) >> 2)
+
+static void intra_pred_lp(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int x,y;
+ for(y=0; y<8; y++)
+ for(x=0; x<8; x++)
+ d[y*stride+x] = (LOWPASS(top,x+1) + LOWPASS(left,y+1)) >> 1;
+}
+
+static void intra_pred_down_left(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int x,y;
+ for(y=0; y<8; y++)
+ for(x=0; x<8; x++)
+ d[y*stride+x] = (LOWPASS(top,x+y+2) + LOWPASS(left,x+y+2)) >> 1;
+}
+
+static void intra_pred_down_right(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int x,y;
+ for(y=0; y<8; y++)
+ for(x=0; x<8; x++)
+ if(x==y)
+ d[y*stride+x] = (left[1]+2*top[0]+top[1]+2)>>2;
+ else if(x>y)
+ d[y*stride+x] = LOWPASS(top,x-y);
+ else
+ d[y*stride+x] = LOWPASS(left,y-x);
+}
+
+static void intra_pred_lp_left(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int x,y;
+ for(y=0; y<8; y++)
+ for(x=0; x<8; x++)
+ d[y*stride+x] = LOWPASS(left,y+1);
+}
+
+static void intra_pred_lp_top(uint8_t *d,uint8_t *top,uint8_t *left,int stride) {
+ int x,y;
+ for(y=0; y<8; y++)
+ for(x=0; x<8; x++)
+ d[y*stride+x] = LOWPASS(top,x+1);
+}
+
+#undef LOWPASS
+
+static inline void modify_pred(const int8_t *mod_table, int *mode) {
+ int newmode = mod_table[(int)*mode];
+ if(newmode < 0) {
+ av_log(NULL, AV_LOG_ERROR, "Illegal intra prediction mode\n");
+ *mode = 0;
+ } else {
+ *mode = newmode;
+ }
+}
+
+/*****************************************************************************
+ *
+ * motion compensation
+ *
+ ****************************************************************************/
+
+static inline void mc_dir_part(AVSContext *h,Picture *pic,int square,
+ int chroma_height,int delta,int list,uint8_t *dest_y,
+ uint8_t *dest_cb,uint8_t *dest_cr,int src_x_offset,
+ int src_y_offset,qpel_mc_func *qpix_op,
+ h264_chroma_mc_func chroma_op,vector_t *mv){
+ MpegEncContext * const s = &h->s;
+ const int mx= mv->x + src_x_offset*8;
+ const int my= mv->y + src_y_offset*8;
+ const int luma_xy= (mx&3) + ((my&3)<<2);
+ uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*h->l_stride;
+ uint8_t * src_cb= pic->data[1] + (mx>>3) + (my>>3)*h->c_stride;
+ uint8_t * src_cr= pic->data[2] + (mx>>3) + (my>>3)*h->c_stride;
+ int extra_width= 0; //(s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16;
+ int extra_height= extra_width;
+ int emu=0;
+ const int full_mx= mx>>2;
+ const int full_my= my>>2;
+ const int pic_width = 16*h->mb_width;
+ const int pic_height = 16*h->mb_height;
+
+ if(!pic->data[0])
+ return;
+ if(mx&7) extra_width -= 3;
+ if(my&7) extra_height -= 3;
+
+ if( full_mx < 0-extra_width
+ || full_my < 0-extra_height
+ || full_mx + 16/*FIXME*/ > pic_width + extra_width
+ || full_my + 16/*FIXME*/ > pic_height + extra_height){
+ ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*h->l_stride, h->l_stride,
+ 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height);
+ src_y= s->edge_emu_buffer + 2 + 2*h->l_stride;
+ emu=1;
+ }
+
+ qpix_op[luma_xy](dest_y, src_y, h->l_stride); //FIXME try variable height perhaps?
+ if(!square){
+ qpix_op[luma_xy](dest_y + delta, src_y + delta, h->l_stride);
+ }
+
+ if(emu){
+ ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, h->c_stride,
+ 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
+ src_cb= s->edge_emu_buffer;
+ }
+ chroma_op(dest_cb, src_cb, h->c_stride, chroma_height, mx&7, my&7);
+
+ if(emu){
+ ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, h->c_stride,
+ 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1);
+ src_cr= s->edge_emu_buffer;
+ }
+ chroma_op(dest_cr, src_cr, h->c_stride, chroma_height, mx&7, my&7);
+}
+
+static inline void mc_part_std(AVSContext *h,int square,int chroma_height,int delta,
+ uint8_t *dest_y,uint8_t *dest_cb,uint8_t *dest_cr,
+ int x_offset, int y_offset,qpel_mc_func *qpix_put,
+ h264_chroma_mc_func chroma_put,qpel_mc_func *qpix_avg,
+ h264_chroma_mc_func chroma_avg, vector_t *mv){
+ qpel_mc_func *qpix_op= qpix_put;
+ h264_chroma_mc_func chroma_op= chroma_put;
+
+ dest_y += 2*x_offset + 2*y_offset*h->l_stride;
+ dest_cb += x_offset + y_offset*h->c_stride;
+ dest_cr += x_offset + y_offset*h->c_stride;
+ x_offset += 8*h->mbx;
+ y_offset += 8*h->mby;
+
+ if(mv->ref >= 0){
+ Picture *ref= &h->DPB[mv->ref];
+ mc_dir_part(h, ref, square, chroma_height, delta, 0,
+ dest_y, dest_cb, dest_cr, x_offset, y_offset,
+ qpix_op, chroma_op, mv);
+
+ qpix_op= qpix_avg;
+ chroma_op= chroma_avg;
+ }
+
+ if((mv+MV_BWD_OFFS)->ref >= 0){
+ Picture *ref= &h->DPB[0];
+ mc_dir_part(h, ref, square, chroma_height, delta, 1,
+ dest_y, dest_cb, dest_cr, x_offset, y_offset,
+ qpix_op, chroma_op, mv+MV_BWD_OFFS);
+ }
+}
+
+static void inter_pred(AVSContext *h) {
+ /* always do 8x8 blocks TODO: are larger blocks worth it? */
+ mc_part_std(h, 1, 4, 0, h->cy, h->cu, h->cv, 0, 0,
+ h->s.dsp.put_cavs_qpel_pixels_tab[1],
+ h->s.dsp.put_h264_chroma_pixels_tab[1],
+ h->s.dsp.avg_cavs_qpel_pixels_tab[1],
+ h->s.dsp.avg_h264_chroma_pixels_tab[1],&h->mv[MV_FWD_X0]);
+ mc_part_std(h, 1, 4, 0, h->cy, h->cu, h->cv, 4, 0,
+ h->s.dsp.put_cavs_qpel_pixels_tab[1],
+ h->s.dsp.put_h264_chroma_pixels_tab[1],
+ h->s.dsp.avg_cavs_qpel_pixels_tab[1],
+ h->s.dsp.avg_h264_chroma_pixels_tab[1],&h->mv[MV_FWD_X1]);
+ mc_part_std(h, 1, 4, 0, h->cy, h->cu, h->cv, 0, 4,
+ h->s.dsp.put_cavs_qpel_pixels_tab[1],
+ h->s.dsp.put_h264_chroma_pixels_tab[1],
+ h->s.dsp.avg_cavs_qpel_pixels_tab[1],
+ h->s.dsp.avg_h264_chroma_pixels_tab[1],&h->mv[MV_FWD_X2]);
+ mc_part_std(h, 1, 4, 0, h->cy, h->cu, h->cv, 4, 4,
+ h->s.dsp.put_cavs_qpel_pixels_tab[1],
+ h->s.dsp.put_h264_chroma_pixels_tab[1],
+ h->s.dsp.avg_cavs_qpel_pixels_tab[1],
+ h->s.dsp.avg_h264_chroma_pixels_tab[1],&h->mv[MV_FWD_X3]);
+ /* set intra prediction modes to default values */
+ h->pred_mode_Y[3] = h->pred_mode_Y[6] = INTRA_L_LP;
+ h->top_pred_Y[h->mbx*2+0] = h->top_pred_Y[h->mbx*2+1] = INTRA_L_LP;
+}
+
+/*****************************************************************************
+ *
+ * motion vector prediction
+ *
+ ****************************************************************************/
+
+static inline void veccpy(vector_t *dst, vector_t *src) {
+ *((uint64_t *)dst) = *((uint64_t *)src);
+}
+
+static inline void set_mvs(vector_t *mv, enum block_t size) {
+ switch(size) {
+ case BLK_16X16:
+ veccpy(mv+MV_STRIDE ,mv);
+ veccpy(mv+MV_STRIDE+1,mv);
+ case BLK_16X8:
+ veccpy(mv +1,mv);
+ break;
+ case BLK_8X16:
+ veccpy(mv+MV_STRIDE ,mv);
+ break;
+ }
+}
+
+static inline void store_mvs(AVSContext *h) {
+ veccpy(&h->col_mv[(h->mby*h->mb_width + h->mbx)*4 + 0], &h->mv[MV_FWD_X0]);
+ veccpy(&h->col_mv[(h->mby*h->mb_width + h->mbx)*4 + 1], &h->mv[MV_FWD_X1]);
+ veccpy(&h->col_mv[(h->mby*h->mb_width + h->mbx)*4 + 2], &h->mv[MV_FWD_X2]);
+ veccpy(&h->col_mv[(h->mby*h->mb_width + h->mbx)*4 + 3], &h->mv[MV_FWD_X3]);
+}
+
+static inline void scale_mv(AVSContext *h, int *d_x, int *d_y, vector_t *src, int distp) {
+ int den = h->scale_den[src->ref];
+
+ *d_x = (src->x*distp*den + 256 + (src->x>>31)) >> 9;
+ *d_y = (src->y*distp*den + 256 + (src->y>>31)) >> 9;
+}
+
+static inline void mv_pred_median(AVSContext *h, vector_t *mvP, vector_t *mvA, vector_t *mvB, vector_t *mvC) {
+ int ax, ay, bx, by, cx, cy;
+ int len_ab, len_bc, len_ca, len_mid;
+
+ /* scale candidates according to their temporal span */
+ scale_mv(h, &ax, &ay, mvA, mvP->dist);
+ scale_mv(h, &bx, &by, mvB, mvP->dist);
+ scale_mv(h, &cx, &cy, mvC, mvP->dist);
+ /* find the geometrical median of the three candidates */
+ len_ab = abs(ax - bx) + abs(ay - by);
+ len_bc = abs(bx - cx) + abs(by - cy);
+ len_ca = abs(cx - ax) + abs(cy - ay);
+ len_mid = mid_pred(len_ab, len_bc, len_ca);
+ if(len_mid == len_ab) {
+ mvP->x = cx;
+ mvP->y = cy;
+ } else if(len_mid == len_bc) {
+ mvP->x = ax;
+ mvP->y = ay;
+ } else {
+ mvP->x = bx;
+ mvP->y = by;
+ }
+}
+
+static inline void mv_pred_direct(AVSContext *h, vector_t *pmv_fw,
+ vector_t *pmv_bw, vector_t *col_mv) {
+ int den = h->direct_den[col_mv->ref];
+ int m = col_mv->x >> 31;
+
+ pmv_fw->dist = h->dist[1];
+ pmv_bw->dist = h->dist[0];
+ pmv_fw->ref = 1;
+ pmv_bw->ref = 0;
+ /* scale the co-located motion vector according to its temporal span */
+ pmv_fw->x = (((den+(den*col_mv->x*pmv_fw->dist^m)-m-1)>>14)^m)-m;
+ pmv_bw->x = m-(((den+(den*col_mv->x*pmv_bw->dist^m)-m-1)>>14)^m);
+ m = col_mv->y >> 31;
+ pmv_fw->y = (((den+(den*col_mv->y*pmv_fw->dist^m)-m-1)>>14)^m)-m;
+ pmv_bw->y = m-(((den+(den*col_mv->y*pmv_bw->dist^m)-m-1)>>14)^m);
+}
+
+static inline void mv_pred_sym(AVSContext *h, vector_t *src, enum block_t size) {
+ vector_t *dst = src + MV_BWD_OFFS;
+
+ /* backward mv is the scaled and negated forward mv */
+ dst->x = -((src->x * h->sym_factor + 256) >> 9);
+ dst->y = -((src->y * h->sym_factor + 256) >> 9);
+ dst->ref = 0;
+ dst->dist = h->dist[0];
+ set_mvs(dst, size);
+}
+
+static void mv_pred(AVSContext *h, enum mv_loc_t nP, enum mv_loc_t nC,
+ enum mv_pred_t mode, enum block_t size, int ref) {
+ vector_t *mvP = &h->mv[nP];
+ vector_t *mvA = &h->mv[nP-1];
+ vector_t *mvB = &h->mv[nP-4];
+ vector_t *mvC = &h->mv[nC];
+ int mvAref = mvA->ref;
+ int mvBref = mvB->ref;
+ int mvCref;
+
+ mvP->ref = ref;
+ mvP->dist = h->dist[mvP->ref];
+ if(mvC->ref == NOT_AVAIL)
+ mvC = &h->mv[nP-5]; // set to top-left (mvD)
+ mvCref = mvC->ref;
+ if(mode == MV_PRED_PSKIP) {
+ if((mvAref == NOT_AVAIL) || (mvBref == NOT_AVAIL) ||
+ ((mvA->x | mvA->y | mvA->ref) == 0) ||
+ ((mvB->x | mvB->y | mvB->ref) == 0) ) {
+ mvP->x = mvP->y = 0;
+ set_mvs(mvP,size);
+ return;
+ }
+ }
+ /* if there is only one suitable candidate, take it */
+ if((mvAref >= 0) && (mvBref < 0) && (mvCref < 0)) {
+ mvP->x = mvA->x;
+ mvP->y = mvA->y;
+ } else if((mvAref < 0) && (mvBref >= 0) && (mvCref < 0)) {
+ mvP->x = mvB->x;
+ mvP->y = mvB->y;
+ } else if((mvAref < 0) && (mvBref < 0) && (mvCref >= 0)) {
+ mvP->x = mvC->x;
+ mvP->y = mvC->y;
+ } else {
+ switch(mode) {
+ case MV_PRED_LEFT:
+ if(mvAref == mvP->ref) {
+ mvP->x = mvA->x;
+ mvP->y = mvA->y;
+ } else
+ mv_pred_median(h, mvP, mvA, mvB, mvC);
+ break;
+ case MV_PRED_TOP:
+ if(mvBref == mvP->ref) {
+ mvP->x = mvB->x;
+ mvP->y = mvB->y;
+ } else
+ mv_pred_median(h, mvP, mvA, mvB, mvC);
+ break;
+ case MV_PRED_TOPRIGHT:
+ if(mvCref == mvP->ref) {
+ mvP->x = mvC->x;
+ mvP->y = mvC->y;
+ } else
+ mv_pred_median(h, mvP, mvA, mvB, mvC);
+ break;
+ default:
+ mv_pred_median(h, mvP, mvA, mvB, mvC);
+ break;
+ }
+ }
+ if(mode < MV_PRED_PSKIP) {
+ mvP->x += get_se_golomb(&h->s.gb);
+ mvP->y += get_se_golomb(&h->s.gb);
+ }
+ set_mvs(mvP,size);
+}
+
+/*****************************************************************************
+ *
+ * residual data decoding
+ *
+ ****************************************************************************/
+
+/* kth-order exponential golomb code */
+static inline int get_ue_code(GetBitContext *gb, int order) {
+ if(order)
+ return (get_ue_golomb(gb) << order) + get_bits(gb,order);
+ return get_ue_golomb(gb);
+}
+
+static int decode_residual_block(AVSContext *h, GetBitContext *gb,
+ const residual_vlc_t *r, int esc_golomb_order,
+ int qp, uint8_t *dst, int stride) {
+ int i,pos = -1;
+ int level_code, esc_code, level, run, mask;
+ int level_buf[64];
+ int run_buf[64];
+ int dqm = dequant_mul[qp];
+ int dqs = dequant_shift[qp];
+ int dqa = 1 << (dqs - 1);
+ const uint8_t *scantab = ff_zigzag_direct;
+ DCTELEM block[64];
+
+ memset(block,0,64*sizeof(DCTELEM));
+ for(i=0;i<65;i++) {
+ level_code = get_ue_code(gb,r->golomb_order);
+ if(level_code >= ESCAPE_CODE) {
+ run = (level_code - ESCAPE_CODE) >> 1;
+ esc_code = get_ue_code(gb,esc_golomb_order);
+ level = esc_code + (run > r->max_run ? 1 : r->level_add[run]);
+ while(level > r->inc_limit)
+ r++;
+ mask = -(level_code & 1);
+ level = (level^mask) - mask;
+ } else {
+ if(level_code < 0)
+ return -1;
+ level = r->rltab[level_code][0];
+ if(!level) //end of block signal
+ break;
+ run = r->rltab[level_code][1];
+ r += r->rltab[level_code][2];
+ }
+ level_buf[i] = level;
+ run_buf[i] = run;
+ }
+ /* inverse scan and dequantization */
+ for(i=i-1;i>=0;i--) {
+ pos += 1 + run_buf[i];
+ if(pos > 63) {
+ av_log(h->s.avctx, AV_LOG_ERROR,
+ "position out of block bounds at pic %d MB(%d,%d)\n",
+ h->picture.poc, h->mbx, h->mby);
+ return -1;
+ }
+ block[scantab[pos]] = (level_buf[i]*dqm + dqa) >> dqs;
+ }
+ h->s.dsp.cavs_idct8_add(dst,block,stride);
+ return 0;
+}
+
+
+static inline void decode_residual_chroma(AVSContext *h) {
+ if(h->cbp & (1<<4))
+ decode_residual_block(h,&h->s.gb,chroma_2dvlc,0, chroma_qp[h->qp],
+ h->cu,h->c_stride);
+ if(h->cbp & (1<<5))
+ decode_residual_block(h,&h->s.gb,chroma_2dvlc,0, chroma_qp[h->qp],
+ h->cv,h->c_stride);
+}
+
+static inline void decode_residual_inter(AVSContext *h) {
+ int block;
+
+ /* get coded block pattern */
+ h->cbp = cbp_tab[get_ue_golomb(&h->s.gb)][1];
+ /* get quantizer */
+ if(h->cbp && !h->qp_fixed)
+ h->qp += get_se_golomb(&h->s.gb);
+ for(block=0;block<4;block++)
+ if(h->cbp & (1<<block))
+ decode_residual_block(h,&h->s.gb,inter_2dvlc,0,h->qp,
+ h->cy + h->luma_scan[block], h->l_stride);
+ decode_residual_chroma(h);
+}
+
+/*****************************************************************************
+ *
+ * macroblock level
+ *
+ ****************************************************************************/
+
+static inline void init_mb(AVSContext *h) {
+ int i;
+
+ /* copy predictors from top line (MB B and C) into cache */
+ for(i=0;i<3;i++) {
+ veccpy(&h->mv[MV_FWD_B2+i],&h->top_mv[0][h->mbx*2+i]);
+ veccpy(&h->mv[MV_BWD_B2+i],&h->top_mv[1][h->mbx*2+i]);
+ }
+ h->pred_mode_Y[1] = h->top_pred_Y[h->mbx*2+0];
+ h->pred_mode_Y[2] = h->top_pred_Y[h->mbx*2+1];
+ /* clear top predictors if MB B is not available */
+ if(!(h->flags & B_AVAIL)) {
+ veccpy(&h->mv[MV_FWD_B2],(vector_t *)&un_mv);
+ veccpy(&h->mv[MV_FWD_B3],(vector_t *)&un_mv);
+ veccpy(&h->mv[MV_BWD_B2],(vector_t *)&un_mv);
+ veccpy(&h->mv[MV_BWD_B3],(vector_t *)&un_mv);
+ h->pred_mode_Y[1] = h->pred_mode_Y[2] = NOT_AVAIL;
+ h->flags &= ~(C_AVAIL|D_AVAIL);
+ } else if(h->mbx) {
+ h->flags |= D_AVAIL;
+ }
+ if(h->mbx == h->mb_width-1) //MB C not available
+ h->flags &= ~C_AVAIL;
+ /* clear top-right predictors if MB C is not available */
+ if(!(h->flags & C_AVAIL)) {
+ veccpy(&h->mv[MV_FWD_C2],(vector_t *)&un_mv);
+ veccpy(&h->mv[MV_BWD_C2],(vector_t *)&un_mv);
+ }
+ /* clear top-left predictors if MB D is not available */
+ if(!(h->flags & D_AVAIL)) {
+ veccpy(&h->mv[MV_FWD_D3],(vector_t *)&un_mv);
+ veccpy(&h->mv[MV_BWD_D3],(vector_t *)&un_mv);
+ }
+ /* set pointer for co-located macroblock type */
+ h->col_type = &h->col_type_base[h->mby*h->mb_width + h->mbx];
+}
+
+static inline void check_for_slice(AVSContext *h);
+
+static inline int next_mb(AVSContext *h) {
+ int i;
+
+ h->flags |= A_AVAIL;
+ h->cy += 16;
+ h->cu += 8;
+ h->cv += 8;
+ /* copy mvs as predictors to the left */
+ for(i=0;i<=20;i+=4)
+ veccpy(&h->mv[i],&h->mv[i+2]);
+ /* copy bottom mvs from cache to top line */
+ veccpy(&h->top_mv[0][h->mbx*2+0],&h->mv[MV_FWD_X2]);
+ veccpy(&h->top_mv[0][h->mbx*2+1],&h->mv[MV_FWD_X3]);
+ veccpy(&h->top_mv[1][h->mbx*2+0],&h->mv[MV_BWD_X2]);
+ veccpy(&h->top_mv[1][h->mbx*2+1],&h->mv[MV_BWD_X3]);
+ /* next MB address */
+ h->mbx++;
+ if(h->mbx == h->mb_width) { //new mb line
+ h->flags = B_AVAIL|C_AVAIL;
+ /* clear left pred_modes */
+ h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
+ /* clear left mv predictors */
+ for(i=0;i<=20;i+=4)
+ veccpy(&h->mv[i],(vector_t *)&un_mv);
+ h->mbx = 0;
+ h->mby++;
+ /* re-calculate sample pointers */
+ h->cy = h->picture.data[0] + h->mby*16*h->l_stride;
+ h->cu = h->picture.data[1] + h->mby*8*h->c_stride;
+ h->cv = h->picture.data[2] + h->mby*8*h->c_stride;
+ if(h->mby == h->mb_height) { //frame end
+ return 0;
+ } else {
+ //check_for_slice(h);
+ }
+ }
+ return 1;
+}
+
+static void decode_mb_i(AVSContext *h, int is_i_pic) {
+ GetBitContext *gb = &h->s.gb;
+ int block, pred_mode_uv;
+ uint8_t top[18];
+ uint8_t left[18];
+ uint8_t *d;
+
+ /* get intra prediction modes from stream */
+ for(block=0;block<4;block++) {
+ int nA,nB,predpred;
+ int pos = scan3x3[block];
+
+ nA = h->pred_mode_Y[pos-1];
+ nB = h->pred_mode_Y[pos-3];
+ if((nA == NOT_AVAIL) || (nB == NOT_AVAIL))
+ predpred = 2;
+ else
+ predpred = FFMIN(nA,nB);
+ if(get_bits1(gb))
+ h->pred_mode_Y[pos] = predpred;
+ else {
+ h->pred_mode_Y[pos] = get_bits(gb,2);
+ if(h->pred_mode_Y[pos] >= predpred)
+ h->pred_mode_Y[pos]++;
+ }
+ }
+ pred_mode_uv = get_ue_golomb(gb);
+ if(pred_mode_uv > 6) {
+ av_log(h->s.avctx, AV_LOG_ERROR, "illegal intra chroma pred mode\n");
+ pred_mode_uv = 0;
+ }
+
+ /* save pred modes before they get modified */
+ h->pred_mode_Y[3] = h->pred_mode_Y[5];
+ h->pred_mode_Y[6] = h->pred_mode_Y[8];
+ h->top_pred_Y[h->mbx*2+0] = h->pred_mode_Y[7];
+ h->top_pred_Y[h->mbx*2+1] = h->pred_mode_Y[8];
+
+ /* modify pred modes according to availability of neighbour samples */
+ if(!(h->flags & A_AVAIL)) {
+ modify_pred(left_modifier_l, &h->pred_mode_Y[4] );
+ modify_pred(left_modifier_l, &h->pred_mode_Y[7] );
+ modify_pred(left_modifier_c, &pred_mode_uv );
+ }
+ if(!(h->flags & B_AVAIL)) {
+ modify_pred(top_modifier_l, &h->pred_mode_Y[4] );
+ modify_pred(top_modifier_l, &h->pred_mode_Y[5] );
+ modify_pred(top_modifier_c, &pred_mode_uv );
+ }
+
+ /* get coded block pattern */
+ if(is_i_pic)
+ h->cbp = cbp_tab[get_ue_golomb(gb)][0];
+ if(h->cbp && !h->qp_fixed)
+ h->qp += get_se_golomb(gb); //qp_delta
+
+ /* luma intra prediction interleaved with residual decode/transform/add */
+ for(block=0;block<4;block++) {
+ d = h->cy + h->luma_scan[block];
+ load_intra_pred_luma(h, top, left, block);
+ h->intra_pred_l[(int)h->pred_mode_Y[scan3x3[block]]]
+ (d, top, left, h->l_stride);
+ if(h->cbp & (1<<block))
+ decode_residual_block(h,gb,intra_2dvlc,1,h->qp,d,h->l_stride);
+ }
+
+ /* chroma intra prediction */
+ load_intra_pred_chroma(&h->top_border_u[h->mbx*8], h->left_border_u,
+ h->topleft_border_u, top, left, h->c_stride, h->flags);
+ h->intra_pred_c[pred_mode_uv](h->cu, top, left, h->c_stride);
+ load_intra_pred_chroma(&h->top_border_v[h->mbx*8], h->left_border_v,
+ h->topleft_border_v, top, left, h->c_stride, h->flags);
+ h->intra_pred_c[pred_mode_uv](h->cv, top, left, h->c_stride);
+
+ decode_residual_chroma(h);
+ filter_mb(h,I_8X8);
+
+ /* mark motion vectors as intra */
+ veccpy( &h->mv[MV_FWD_X0], (vector_t *)&intra_mv);
+ set_mvs(&h->mv[MV_FWD_X0], BLK_16X16);
+ veccpy( &h->mv[MV_BWD_X0], (vector_t *)&intra_mv);
+ set_mvs(&h->mv[MV_BWD_X0], BLK_16X16);
+ if(h->pic_type != FF_B_TYPE)
+ *h->col_type = I_8X8;
+}
+
+static void mb_skip_p(AVSContext *h) {
+ mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_PSKIP, BLK_16X16, 0);
+ inter_pred(h);
+ store_mvs(h);
+ filter_mb(h,P_SKIP);
+ *h->col_type = P_SKIP;
+}
+
+
+static void mb_skip_b(AVSContext *h) {
+ int i;
+
+ if(!(*h->col_type)) {
+ /* intra MB at co-location, do in-plane prediction */
+ mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_BSKIP, BLK_16X16, 1);
+ mv_pred(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_BSKIP, BLK_16X16, 0);
+ } else {
+ /* direct prediction from co-located P MB, block-wise */
+ for(i=0;i<4;i++)
+ mv_pred_direct(h,&h->mv[mv_scan[i]],
+ &h->mv[mv_scan[i]+MV_BWD_OFFS],
+ &h->col_mv[(h->mby*h->mb_width + h->mbx)*4 + i]);
+ }
+}
+
+static void decode_mb_p(AVSContext *h, enum mb_t mb_type) {
+ GetBitContext *gb = &h->s.gb;
+ int ref[4];
+
+ switch(mb_type) {
+ case P_SKIP:
+ mb_skip_p(h);
+ return;
+ case P_16X16:
+ ref[0] = h->ref_flag ? 0 : get_bits1(gb);
+ mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16,ref[0]);
+ break;
+ case P_16X8:
+ ref[0] = h->ref_flag ? 0 : get_bits1(gb);
+ ref[2] = h->ref_flag ? 0 : get_bits1(gb);
+ mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, ref[0]);
+ mv_pred(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, ref[2]);
+ break;
+ case P_8X16:
+ ref[0] = h->ref_flag ? 0 : get_bits1(gb);
+ ref[1] = h->ref_flag ? 0 : get_bits1(gb);
+ mv_pred(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, ref[0]);
+ mv_pred(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT, BLK_8X16, ref[1]);
+ break;
+ case P_8X8:
+ ref[0] = h->ref_flag ? 0 : get_bits1(gb);
+ ref[1] = h->ref_flag ? 0 : get_bits1(gb);
+ ref[2] = h->ref_flag ? 0 : get_bits1(gb);
+ ref[3] = h->ref_flag ? 0 : get_bits1(gb);
+ mv_pred(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_MEDIAN, BLK_8X8, ref[0]);
+ mv_pred(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_MEDIAN, BLK_8X8, ref[1]);
+ mv_pred(h, MV_FWD_X2, MV_FWD_X1, MV_PRED_MEDIAN, BLK_8X8, ref[2]);
+ mv_pred(h, MV_FWD_X3, MV_FWD_X0, MV_PRED_MEDIAN, BLK_8X8, ref[3]);
+ }
+ inter_pred(h);
+ store_mvs(h);
+ decode_residual_inter(h);
+ filter_mb(h,mb_type);
+ *h->col_type = mb_type;
+}
+
+static void decode_mb_b(AVSContext *h, enum mb_t mb_type) {
+ int block;
+ enum sub_mb_t sub_type[4];
+ int flags;
+
+ /* reset all MVs */
+ veccpy( &h->mv[MV_FWD_X0], (vector_t *)&dir_mv);
+ set_mvs(&h->mv[MV_FWD_X0], BLK_16X16);
+ veccpy( &h->mv[MV_BWD_X0], (vector_t *)&dir_mv);
+ set_mvs(&h->mv[MV_BWD_X0], BLK_16X16);
+ switch(mb_type) {
+ case B_SKIP:
+ mb_skip_b(h);
+ inter_pred(h);
+ filter_mb(h,B_SKIP);
+ return;
+ case B_DIRECT:
+ mb_skip_b(h);
+ break;
+ case B_FWD_16X16:
+ mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1);
+ break;
+ case B_SYM_16X16:
+ mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_MEDIAN, BLK_16X16, 1);
+ mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_16X16);
+ break;
+ case B_BWD_16X16:
+ mv_pred(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_MEDIAN, BLK_16X16, 0);
+ break;
+ case B_8X8:
+ for(block=0;block<4;block++)
+ sub_type[block] = get_bits(&h->s.gb,2);
+ for(block=0;block<4;block++) {
+ switch(sub_type[block]) {
+ case B_SUB_DIRECT:
+ if(!(*h->col_type)) {
+ /* intra MB at co-location, do in-plane prediction */
+ mv_pred(h, mv_scan[block], mv_scan[block]-3,
+ MV_PRED_BSKIP, BLK_8X8, 1);
+ mv_pred(h, mv_scan[block]+MV_BWD_OFFS,
+ mv_scan[block]-3+MV_BWD_OFFS,
+ MV_PRED_BSKIP, BLK_8X8, 0);
+ } else
+ mv_pred_direct(h,&h->mv[mv_scan[block]],
+ &h->mv[mv_scan[block]+MV_BWD_OFFS],
+ &h->col_mv[(h->mby*h->mb_width + h->mbx)*4 + block]);
+ break;
+ case B_SUB_FWD:
+ mv_pred(h, mv_scan[block], mv_scan[block]-3,
+ MV_PRED_MEDIAN, BLK_8X8, 1);
+ break;
+ case B_SUB_SYM:
+ mv_pred(h, mv_scan[block], mv_scan[block]-3,
+ MV_PRED_MEDIAN, BLK_8X8, 1);
+ mv_pred_sym(h, &h->mv[mv_scan[block]], BLK_8X8);
+ break;
+ }
+ }
+ for(block=0;block<4;block++) {
+ if(sub_type[block] == B_SUB_BWD)
+ mv_pred(h, mv_scan[block]+MV_BWD_OFFS,
+ mv_scan[block]+MV_BWD_OFFS-3,
+ MV_PRED_MEDIAN, BLK_8X8, 0);
+ }
+ break;
+ default:
+ assert((mb_type > B_SYM_16X16) && (mb_type < B_8X8));
+ flags = b_partition_flags[(mb_type-1)>>1];
+ if(mb_type & 1) { /* 16x8 macroblock types */
+ if(flags & FWD0)
+ mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, 1);
+ if(flags & SYM0) {
+ mv_pred(h, MV_FWD_X0, MV_FWD_C2, MV_PRED_TOP, BLK_16X8, 1);
+ mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_16X8);
+ }
+ if(flags & FWD1)
+ mv_pred(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, 1);
+ if(flags & SYM1) {
+ mv_pred(h, MV_FWD_X2, MV_FWD_A1, MV_PRED_LEFT, BLK_16X8, 1);
+ mv_pred_sym(h, &h->mv[9], BLK_16X8);
+ }
+ if(flags & BWD0)
+ mv_pred(h, MV_BWD_X0, MV_BWD_C2, MV_PRED_TOP, BLK_16X8, 0);
+ if(flags & BWD1)
+ mv_pred(h, MV_BWD_X2, MV_BWD_A1, MV_PRED_LEFT, BLK_16X8, 0);
+ } else { /* 8x16 macroblock types */
+ if(flags & FWD0)
+ mv_pred(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, 1);
+ if(flags & SYM0) {
+ mv_pred(h, MV_FWD_X0, MV_FWD_B3, MV_PRED_LEFT, BLK_8X16, 1);
+ mv_pred_sym(h, &h->mv[MV_FWD_X0], BLK_8X16);
+ }
+ if(flags & FWD1)
+ mv_pred(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT,BLK_8X16, 1);
+ if(flags & SYM1) {
+ mv_pred(h, MV_FWD_X1, MV_FWD_C2, MV_PRED_TOPRIGHT,BLK_8X16, 1);
+ mv_pred_sym(h, &h->mv[6], BLK_8X16);
+ }
+ if(flags & BWD0)
+ mv_pred(h, MV_BWD_X0, MV_BWD_B3, MV_PRED_LEFT, BLK_8X16, 0);
+ if(flags & BWD1)
+ mv_pred(h, MV_BWD_X1, MV_BWD_C2, MV_PRED_TOPRIGHT,BLK_8X16, 0);
+ }
+ }
+ inter_pred(h);
+ decode_residual_inter(h);
+ filter_mb(h,mb_type);
+}
+
+/*****************************************************************************
+ *
+ * slice level
+ *
+ ****************************************************************************/
+
+static inline int decode_slice_header(AVSContext *h, GetBitContext *gb) {
+ if(h->stc > 0xAF)
+ av_log(h->s.avctx, AV_LOG_ERROR, "unexpected start code 0x%02x\n", h->stc);
+ h->mby = h->stc;
+ if((h->mby == 0) && (!h->qp_fixed)){
+ h->qp_fixed = get_bits1(gb);
+ h->qp = get_bits(gb,6);
+ }
+ /* inter frame or second slice can have weighting params */
+ if((h->pic_type != FF_I_TYPE) || (!h->pic_structure && h->mby >= h->mb_width/2))
+ if(get_bits1(gb)) { //slice_weighting_flag
+ av_log(h->s.avctx, AV_LOG_ERROR,
+ "weighted prediction not yet supported\n");
+ }
+ return 0;
+}
+
+static inline void check_for_slice(AVSContext *h) {
+ GetBitContext *gb = &h->s.gb;
+ int align;
+ align = (-get_bits_count(gb)) & 7;
+ if((show_bits_long(gb,24+align) & 0xFFFFFF) == 0x000001) {
+ get_bits_long(gb,24+align);
+ h->stc = get_bits(gb,8);
+ decode_slice_header(h,gb);
+ }
+}
+
+/*****************************************************************************
+ *
+ * frame level
+ *
+ ****************************************************************************/
+
+static void init_pic(AVSContext *h) {
+ int i;
+
+ /* clear some predictors */
+ for(i=0;i<=20;i+=4)
+ veccpy(&h->mv[i],(vector_t *)&un_mv);
+ veccpy(&h->mv[MV_BWD_X0], (vector_t *)&dir_mv);
+ set_mvs(&h->mv[MV_BWD_X0], BLK_16X16);
+ veccpy(&h->mv[MV_FWD_X0], (vector_t *)&dir_mv);
+ set_mvs(&h->mv[MV_FWD_X0], BLK_16X16);
+ h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL;
+ h->cy = h->picture.data[0];
+ h->cu = h->picture.data[1];
+ h->cv = h->picture.data[2];
+ h->l_stride = h->picture.linesize[0];
+ h->c_stride = h->picture.linesize[1];
+ h->luma_scan[2] = 8*h->l_stride;
+ h->luma_scan[3] = 8*h->l_stride+8;
+ h->mbx = h->mby = 0;
+ h->flags = 0;
+}
+
+static int decode_pic(AVSContext *h) {
+ MpegEncContext *s = &h->s;
+ int i,skip_count;
+ enum mb_t mb_type;
+
+ if (!s->context_initialized) {
+ if (MPV_common_init(s) < 0)
+ return -1;
+ }
+ get_bits(&s->gb,16);//bbv_dwlay
+ if(h->stc == PIC_PB_START_CODE) {
+ h->pic_type = get_bits(&s->gb,2) + FF_I_TYPE;
+ /* make sure we have the reference frames we need */
+ if(!h->DPB[0].data[0] ||
+ (!h->DPB[1].data[0] && h->pic_type == FF_B_TYPE))
+ return -1;
+ } else {
+ h->pic_type = FF_I_TYPE;
+ if(get_bits1(&s->gb))
+ get_bits(&s->gb,16);//time_code
+ }
+ /* release last B frame */
+ if(h->picture.data[0])
+ s->avctx->release_buffer(s->avctx, (AVFrame *)&h->picture);
+
+ s->avctx->get_buffer(s->avctx, (AVFrame *)&h->picture);
+ init_pic(h);
+ h->picture.poc = get_bits(&s->gb,8)*2;
+
+ /* get temporal distances and MV scaling factors */
+ if(h->pic_type != FF_B_TYPE) {
+ h->dist[0] = (h->picture.poc - h->DPB[0].poc + 512) % 512;
+ } else {
+ h->dist[0] = (h->DPB[0].poc - h->picture.poc + 512) % 512;
+ }
+ h->dist[1] = (h->picture.poc - h->DPB[1].poc + 512) % 512;
+ h->scale_den[0] = h->dist[0] ? 512/h->dist[0] : 0;
+ h->scale_den[1] = h->dist[1] ? 512/h->dist[1] : 0;
+ if(h->pic_type == FF_B_TYPE) {
+ h->sym_factor = h->dist[0]*h->scale_den[1];
+ } else {
+ h->direct_den[0] = h->dist[0] ? 16384/h->dist[0] : 0;
+ h->direct_den[1] = h->dist[1] ? 16384/h->dist[1] : 0;
+ }
+
+ if(s->low_delay)
+ get_ue_golomb(&s->gb); //bbv_check_times
+ h->progressive = get_bits1(&s->gb);
+ if(h->progressive)
+ h->pic_structure = 1;
+ else if(!(h->pic_structure = get_bits1(&s->gb) && (h->stc == PIC_PB_START_CODE)) )
+ get_bits1(&s->gb); //advanced_pred_mode_disable
+ skip_bits1(&s->gb); //top_field_first
+ skip_bits1(&s->gb); //repeat_first_field
+ h->qp_fixed = get_bits1(&s->gb);
+ h->qp = get_bits(&s->gb,6);
+ if(h->pic_type == FF_I_TYPE) {
+ if(!h->progressive && !h->pic_structure)
+ skip_bits1(&s->gb);//what is this?
+ skip_bits(&s->gb,4); //reserved bits
+ } else {
+ if(!(h->pic_type == FF_B_TYPE && h->pic_structure == 1))
+ h->ref_flag = get_bits1(&s->gb);
+ skip_bits(&s->gb,4); //reserved bits
+ h->skip_mode_flag = get_bits1(&s->gb);
+ }
+ h->loop_filter_disable = get_bits1(&s->gb);
+ if(!h->loop_filter_disable && get_bits1(&s->gb)) {
+ h->alpha_offset = get_se_golomb(&s->gb);
+ h->beta_offset = get_se_golomb(&s->gb);
+ } else {
+ h->alpha_offset = h->beta_offset = 0;
+ }
+ check_for_slice(h);
+ if(h->pic_type == FF_I_TYPE) {
+ do {
+ init_mb(h);
+ decode_mb_i(h,1);
+ } while(next_mb(h));
+ } else if(h->pic_type == FF_P_TYPE) {
+ do {
+ if(h->skip_mode_flag) {
+ skip_count = get_ue_golomb(&s->gb);
+ for(i=0;i<skip_count;i++) {
+ init_mb(h);
+ mb_skip_p(h);
+ if(!next_mb(h))
+ goto done;
+ }
+ mb_type = get_ue_golomb(&s->gb) + P_16X16;
+ } else {
+ mb_type = get_ue_golomb(&s->gb) + P_SKIP;
+ }
+ init_mb(h);
+ if(mb_type > P_8X8) {
+ h->cbp = cbp_tab[mb_type - P_8X8 - 1][0];
+ decode_mb_i(h,0);
+ } else {
+ decode_mb_p(h,mb_type);
+ }
+ } while(next_mb(h));
+ } else { //FF_B_TYPE
+ do {
+ if(h->skip_mode_flag) {
+ skip_count = get_ue_golomb(&s->gb);
+ for(i=0;i<skip_count;i++) {
+ init_mb(h);
+ mb_skip_b(h);
+ inter_pred(h);
+ filter_mb(h,B_SKIP);
+ if(!next_mb(h))
+ goto done;
+ }
+ mb_type = get_ue_golomb(&s->gb) + B_DIRECT;
+ } else {
+ mb_type = get_ue_golomb(&s->gb) + B_SKIP;
+ }
+ init_mb(h);
+ if(mb_type > B_8X8) {
+ h->cbp = cbp_tab[mb_type - B_8X8 - 1][0];
+ decode_mb_i(h,0);
+ } else {
+ decode_mb_b(h,mb_type);
+ }
+ } while(next_mb(h));
+ }
+ done:
+ if(h->pic_type != FF_B_TYPE) {
+ if(h->DPB[1].data[0])
+ s->avctx->release_buffer(s->avctx, (AVFrame *)&h->DPB[1]);
+ memcpy(&h->DPB[1], &h->DPB[0], sizeof(Picture));
+ memcpy(&h->DPB[0], &h->picture, sizeof(Picture));
+ memset(&h->picture,0,sizeof(Picture));
+ }
+ return 0;
+}
+
+/*****************************************************************************
+ *
+ * headers and interface
+ *
+ ****************************************************************************/
+
+static void init_top_lines(AVSContext *h) {
+ /* alloc top line of predictors */
+ h->top_qp = av_malloc( h->mb_width);
+ h->top_mv[0] = av_malloc((h->mb_width*2+1)*sizeof(vector_t));
+ h->top_mv[1] = av_malloc((h->mb_width*2+1)*sizeof(vector_t));
+ h->top_pred_Y = av_malloc( h->mb_width*2*sizeof(int));
+ h->top_border_y = av_malloc((h->mb_width+1)*16);
+ h->top_border_u = av_malloc((h->mb_width+1)*8);
+ h->top_border_v = av_malloc((h->mb_width+1)*8);
+
+ /* alloc space for co-located MVs and types */
+ h->col_mv = av_malloc( h->mb_width*h->mb_height*4*sizeof(vector_t));
+ h->col_type_base = av_malloc(h->mb_width*h->mb_height);
+}
+
+static int decode_seq_header(AVSContext *h) {
+ MpegEncContext *s = &h->s;
+ extern const AVRational frame_rate_tab[];
+ int frame_rate_code;
+
+ h->profile = get_bits(&s->gb,8);
+ h->level = get_bits(&s->gb,8);
+ skip_bits1(&s->gb); //progressive sequence
+ s->width = get_bits(&s->gb,14);
+ s->height = get_bits(&s->gb,14);
+ skip_bits(&s->gb,2); //chroma format
+ skip_bits(&s->gb,3); //sample_precision
+ h->aspect_ratio = get_bits(&s->gb,4);
+ frame_rate_code = get_bits(&s->gb,4);
+ skip_bits(&s->gb,18);//bit_rate_lower
+ skip_bits1(&s->gb); //marker_bit
+ skip_bits(&s->gb,12);//bit_rate_upper
+ s->low_delay = get_bits1(&s->gb);
+ h->mb_width = (s->width + 15) >> 4;
+ h->mb_height = (s->height + 15) >> 4;
+ h->s.avctx->time_base.den = frame_rate_tab[frame_rate_code].num;
+ h->s.avctx->time_base.num = frame_rate_tab[frame_rate_code].den;
+ h->s.avctx->width = s->width;
+ h->s.avctx->height = s->height;
+ if(!h->top_qp)
+ init_top_lines(h);
+ return 0;
+}
+
+/**
+ * finds the end of the current frame in the bitstream.
+ * @return the position of the first byte of the next frame, or -1
+ */
+int ff_cavs_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size) {
+ int pic_found, i;
+ uint32_t state;
+
+ pic_found= pc->frame_start_found;
+ state= pc->state;
+
+ i=0;
+ if(!pic_found){
+ for(i=0; i<buf_size; i++){
+ state= (state<<8) | buf[i];
+ if(state == PIC_I_START_CODE || state == PIC_PB_START_CODE){
+ i++;
+ pic_found=1;
+ break;
+ }
+ }
+ }
+
+ if(pic_found){
+ /* EOF considered as end of frame */
+ if (buf_size == 0)
+ return 0;
+ for(; i<buf_size; i++){
+ state= (state<<8) | buf[i];
+ if((state&0xFFFFFF00) == 0x100){
+ if(state < SLICE_MIN_START_CODE || state > SLICE_MAX_START_CODE){
+ pc->frame_start_found=0;
+ pc->state=-1;
+ return i-3;
+ }
+ }
+ }
+ }
+ pc->frame_start_found= pic_found;
+ pc->state= state;
+ return END_NOT_FOUND;
+}
+
+void ff_cavs_flush(AVCodecContext * avctx) {
+ AVSContext *h = (AVSContext *)avctx->priv_data;
+ h->got_keyframe = 0;
+}
+
+static int cavs_decode_frame(AVCodecContext * avctx,void *data, int *data_size,
+ uint8_t * buf, int buf_size) {
+ AVSContext *h = avctx->priv_data;
+ MpegEncContext *s = &h->s;
+ int input_size;
+ const uint8_t *buf_end;
+ const uint8_t *buf_ptr;
+ AVFrame *picture = data;
+ uint32_t stc;
+
+ s->avctx = avctx;
+
+ if (buf_size == 0) {
+ if(!s->low_delay && h->DPB[0].data[0]) {
+ *data_size = sizeof(AVPicture);
+ *picture = *(AVFrame *) &h->DPB[0];
+ }
+ return 0;
+ }
+
+ buf_ptr = buf;
+ buf_end = buf + buf_size;
+ for(;;) {
+ buf_ptr = ff_find_start_code(buf_ptr,buf_end, &stc);
+ if(stc & 0xFFFFFE00)
+ return FFMAX(0, buf_ptr - buf - s->parse_context.last_index);
+ input_size = (buf_end - buf_ptr)*8;
+ switch(stc) {
+ case SEQ_START_CODE:
+ init_get_bits(&s->gb, buf_ptr, input_size);
+ decode_seq_header(h);
+ break;
+ case PIC_I_START_CODE:
+ if(!h->got_keyframe) {
+ if(h->DPB[0].data[0])
+ avctx->release_buffer(avctx, (AVFrame *)&h->DPB[0]);
+ if(h->DPB[1].data[0])
+ avctx->release_buffer(avctx, (AVFrame *)&h->DPB[1]);
+ h->got_keyframe = 1;
+ }
+ case PIC_PB_START_CODE:
+ *data_size = 0;
+ if(!h->got_keyframe)
+ break;
+ init_get_bits(&s->gb, buf_ptr, input_size);
+ h->stc = stc;
+ if(decode_pic(h))
+ break;
+ *data_size = sizeof(AVPicture);
+ if(h->pic_type != FF_B_TYPE) {
+ if(h->DPB[1].data[0]) {
+ *picture = *(AVFrame *) &h->DPB[1];
+ } else {
+ *data_size = 0;
+ }
+ } else
+ *picture = *(AVFrame *) &h->picture;
+ break;
+ case EXT_START_CODE:
+ //mpeg_decode_extension(avctx,buf_ptr, input_size);
+ break;
+ case USER_START_CODE:
+ //mpeg_decode_user_data(avctx,buf_ptr, input_size);
+ break;
+ default:
+ if (stc >= SLICE_MIN_START_CODE &&
+ stc <= SLICE_MAX_START_CODE) {
+ init_get_bits(&s->gb, buf_ptr, input_size);
+ decode_slice_header(h, &s->gb);
+ }
+ break;
+ }
+ }
+}
+
+static int cavs_decode_init(AVCodecContext * avctx) {
+ AVSContext *h = (AVSContext *)avctx->priv_data;
+ MpegEncContext * const s = &h->s;
+
+ MPV_decode_defaults(s);
+ s->avctx = avctx;
+
+ avctx->pix_fmt= PIX_FMT_YUV420P;
+
+ h->luma_scan[0] = 0;
+ h->luma_scan[1] = 8;
+ h->intra_pred_l[ INTRA_L_VERT] = intra_pred_vert;
+ h->intra_pred_l[ INTRA_L_HORIZ] = intra_pred_horiz;
+ h->intra_pred_l[ INTRA_L_LP] = intra_pred_lp;
+ h->intra_pred_l[ INTRA_L_DOWN_LEFT] = intra_pred_down_left;
+ h->intra_pred_l[INTRA_L_DOWN_RIGHT] = intra_pred_down_right;
+ h->intra_pred_l[ INTRA_L_LP_LEFT] = intra_pred_lp_left;
+ h->intra_pred_l[ INTRA_L_LP_TOP] = intra_pred_lp_top;
+ h->intra_pred_l[ INTRA_L_DC_128] = intra_pred_dc_128;
+ h->intra_pred_c[ INTRA_C_LP] = intra_pred_lp;
+ h->intra_pred_c[ INTRA_C_HORIZ] = intra_pred_horiz;
+ h->intra_pred_c[ INTRA_C_VERT] = intra_pred_vert;
+ h->intra_pred_c[ INTRA_C_PLANE] = intra_pred_plane;
+ h->intra_pred_c[ INTRA_C_LP_LEFT] = intra_pred_lp_left;
+ h->intra_pred_c[ INTRA_C_LP_TOP] = intra_pred_lp_top;
+ h->intra_pred_c[ INTRA_C_DC_128] = intra_pred_dc_128;
+ veccpy(&h->mv[ 7], (vector_t *)&un_mv);
+ veccpy(&h->mv[19], (vector_t *)&un_mv);
+ return 0;
+}
+
+static int cavs_decode_end(AVCodecContext * avctx) {
+ AVSContext *h = (AVSContext *)avctx->priv_data;
+
+ av_free(h->top_qp);
+ av_free(h->top_mv[0]);
+ av_free(h->top_mv[1]);
+ av_free(h->top_pred_Y);
+ av_free(h->top_border_y);
+ av_free(h->top_border_u);
+ av_free(h->top_border_v);
+ av_free(h->col_mv);
+ av_free(h->col_type_base);
+ return 0;
+}
+
+AVCodec cavs_decoder = {
+ "cavs",
+ CODEC_TYPE_VIDEO,
+ CODEC_ID_CAVS,
+ sizeof(AVSContext),
+ cavs_decode_init,
+ NULL,
+ cavs_decode_end,
+ cavs_decode_frame,
+ CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY, //FIXME is this correct ?
+ .flush= ff_cavs_flush,
+};
diff --git a/libavcodec/cavsdata.h b/libavcodec/cavsdata.h
new file mode 100644
index 0000000000..a1334d554c
--- /dev/null
+++ b/libavcodec/cavsdata.h
@@ -0,0 +1,613 @@
+/*
+ * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
+ * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define SLICE_MIN_START_CODE 0x00000101
+#define SLICE_MAX_START_CODE 0x000001af
+#define EXT_START_CODE 0x000001b5
+#define USER_START_CODE 0x000001b2
+#define SEQ_START_CODE 0x000001b0
+#define PIC_I_START_CODE 0x000001b3
+#define PIC_PB_START_CODE 0x000001b6
+
+#define A_AVAIL 1
+#define B_AVAIL 2
+#define C_AVAIL 4
+#define D_AVAIL 8
+#define NOT_AVAIL -1
+#define REF_INTRA -2
+#define REF_DIR -3
+
+#define ESCAPE_CODE 59
+
+#define FWD0 0x01
+#define FWD1 0x02
+#define BWD0 0x04
+#define BWD1 0x08
+#define SYM0 0x10
+#define SYM1 0x20
+
+#define MV_BWD_OFFS 12
+#define MV_STRIDE 4
+
+enum mb_t {
+ I_8X8 = 0,
+ P_SKIP,
+ P_16X16,
+ P_16X8,
+ P_8X16,
+ P_8X8,
+ B_SKIP,
+ B_DIRECT,
+ B_FWD_16X16,
+ B_BWD_16X16,
+ B_SYM_16X16,
+ B_8X8 = 29
+};
+
+enum sub_mb_t {
+ B_SUB_DIRECT,
+ B_SUB_FWD,
+ B_SUB_BWD,
+ B_SUB_SYM
+};
+
+enum intra_luma_t {
+ INTRA_L_VERT,
+ INTRA_L_HORIZ,
+ INTRA_L_LP,
+ INTRA_L_DOWN_LEFT,
+ INTRA_L_DOWN_RIGHT,
+ INTRA_L_LP_LEFT,
+ INTRA_L_LP_TOP,
+ INTRA_L_DC_128
+};
+
+enum intra_chroma_t {
+ INTRA_C_LP,
+ INTRA_C_HORIZ,
+ INTRA_C_VERT,
+ INTRA_C_PLANE,
+ INTRA_C_LP_LEFT,
+ INTRA_C_LP_TOP,
+ INTRA_C_DC_128,
+};
+
+enum mv_pred_t {
+ MV_PRED_MEDIAN,
+ MV_PRED_LEFT,
+ MV_PRED_TOP,
+ MV_PRED_TOPRIGHT,
+ MV_PRED_PSKIP,
+ MV_PRED_BSKIP
+};
+
+enum block_t {
+ BLK_16X16,
+ BLK_16X8,
+ BLK_8X16,
+ BLK_8X8
+};
+
+enum mv_loc_t {
+ MV_FWD_D3 = 0,
+ MV_FWD_B2,
+ MV_FWD_B3,
+ MV_FWD_C2,
+ MV_FWD_A1,
+ MV_FWD_X0,
+ MV_FWD_X1,
+ MV_FWD_A3 = 8,
+ MV_FWD_X2,
+ MV_FWD_X3,
+ MV_BWD_D3 = MV_BWD_OFFS,
+ MV_BWD_B2,
+ MV_BWD_B3,
+ MV_BWD_C2,
+ MV_BWD_A1,
+ MV_BWD_X0,
+ MV_BWD_X1,
+ MV_BWD_A3 = MV_BWD_OFFS+8,
+ MV_BWD_X2,
+ MV_BWD_X3
+};
+
+static const uint8_t b_partition_flags[14] = {
+ 0,0,0,0,0,
+ FWD0|FWD1,
+ BWD0|BWD1,
+ FWD0|BWD1,
+ BWD0|FWD1,
+ FWD0|SYM1,
+ BWD0|SYM1,
+ SYM0|FWD1,
+ SYM0|BWD1,
+ SYM0|SYM1
+};
+
+static const uint8_t scan3x3[4] = {4,5,7,8};
+
+static const uint8_t mv_scan[4] = {
+ MV_FWD_X0,MV_FWD_X1,
+ MV_FWD_X2,MV_FWD_X3
+};
+
+static const uint8_t cbp_tab[64][2] = {
+ {63, 0},{15,15},{31,63},{47,31},{ 0,16},{14,32},{13,47},{11,13},
+ { 7,14},{ 5,11},{10,12},{ 8, 5},{12,10},{61, 7},{ 4,48},{55, 3},
+ { 1, 2},{ 2, 8},{59, 4},{ 3, 1},{62,61},{ 9,55},{ 6,59},{29,62},
+ {45,29},{51,27},{23,23},{39,19},{27,30},{46,28},{53, 9},{30, 6},
+ {43,60},{37,21},{60,44},{16,26},{21,51},{28,35},{19,18},{35,20},
+ {42,24},{26,53},{44,17},{32,37},{58,39},{24,45},{20,58},{17,43},
+ {18,42},{48,46},{22,36},{33,33},{25,34},{49,40},{40,52},{36,49},
+ {34,50},{50,56},{52,25},{54,22},{41,54},{56,57},{38,41},{57,38}
+};
+
+static const uint8_t chroma_qp[64] = {
+ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,
+ 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,
+ 32,33,34,35,36,37,38,39,40,41,42,42,43,43,44,44,
+ 45,45,46,46,47,47,48,48,48,49,49,49,50,50,50,51
+};
+
+static const uint8_t dequant_shift[64] = {
+ 14,14,14,14,14,14,14,14,
+ 13,13,13,13,13,13,13,13,
+ 13,12,12,12,12,12,12,12,
+ 11,11,11,11,11,11,11,11,
+ 11,10,10,10,10,10,10,10,
+ 10, 9, 9, 9, 9, 9, 9, 9,
+ 9, 8, 8, 8, 8, 8, 8, 8,
+ 7, 7, 7, 7, 7, 7, 7, 7
+};
+
+static const uint16_t dequant_mul[64] = {
+ 32768,36061,38968,42495,46341,50535,55437,60424,
+ 32932,35734,38968,42495,46177,50535,55109,59933,
+ 65535,35734,38968,42577,46341,50617,55027,60097,
+ 32809,35734,38968,42454,46382,50576,55109,60056,
+ 65535,35734,38968,42495,46320,50515,55109,60076,
+ 65535,35744,38968,42495,46341,50535,55099,60087,
+ 65535,35734,38973,42500,46341,50535,55109,60097,
+ 32771,35734,38965,42497,46341,50535,55109,60099
+};
+
+typedef struct {
+ int16_t x;
+ int16_t y;
+ int16_t dist;
+ int16_t ref;
+} vector_t;
+
+// marks block as unavailable, i.e. out of picture
+// or not yet decoded
+static const vector_t un_mv = {0,0,1,NOT_AVAIL};
+
+//marks block as "no prediction from this direction"
+// e.g. forward motion vector in BWD partition
+static const vector_t dir_mv = {0,0,1,REF_DIR};
+
+//marks block as using intra prediction
+static const vector_t intra_mv = {0,0,1,REF_INTRA};
+
+typedef struct residual_vlc_t {
+ int8_t rltab[59][3];
+ int8_t level_add[26];
+ int8_t golomb_order;
+ int inc_limit;
+ int8_t max_run;
+} residual_vlc_t;
+
+static const residual_vlc_t intra_2dvlc[7] = {
+ {
+ { //level / run / table_inc
+ { 1, 0, 1},{ -1, 0, 1},{ 1, 1, 1},{ -1, 1, 1},{ 1, 2, 1},{ -1, 2, 1},
+ { 1, 3, 1},{ -1, 3, 1},{ 1, 4, 1},{ -1, 4, 1},{ 1, 5, 1},{ -1, 5, 1},
+ { 1, 6, 1},{ -1, 6, 1},{ 1, 7, 1},{ -1, 7, 1},{ 1, 8, 1},{ -1, 8, 1},
+ { 1, 9, 1},{ -1, 9, 1},{ 1,10, 1},{ -1,10, 1},{ 2, 0, 2},{ -2, 0, 2},
+ { 1,11, 1},{ -1,11, 1},{ 1,12, 1},{ -1,12, 1},{ 1,13, 1},{ -1,13, 1},
+ { 1,14, 1},{ -1,14, 1},{ 2, 1, 2},{ -2, 1, 2},{ 1,15, 1},{ -1,15, 1},
+ { 1,16, 1},{ -1,16, 1},{ 3, 0, 3},{ -3, 0, 3},{ 1,17, 1},{ -1,17, 1},
+ { 1,18, 1},{ -1,18, 1},{ 2, 2, 2},{ -2, 2, 2},{ 1,19, 1},{ -1,19, 1},
+ { 1,20, 1},{ -1,20, 1},{ 2, 3, 2},{ -2, 3, 2},{ 1,21, 1},{ -1,21, 1},
+ { 2, 4, 2},{ -2, 4, 2},{ 1,22, 1},{ -1,22, 1},{ 0, 0,-1}
+ },
+ //level_add
+ { 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2,-1,-1,-1},
+ 2, //golomb_order
+ 0, //inc_limit
+ 22, //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 2, 0, 1},{ -2, 0, 1},
+ { 1, 2, 0},{ -1, 2, 0},{ 0, 0, 0},{ 1, 3, 0},{ -1, 3, 0},{ 1, 4, 0},
+ { -1, 4, 0},{ 1, 5, 0},{ -1, 5, 0},{ 3, 0, 2},{ -3, 0, 2},{ 2, 1, 1},
+ { -2, 1, 1},{ 1, 6, 0},{ -1, 6, 0},{ 1, 7, 0},{ -1, 7, 0},{ 1, 8, 0},
+ { -1, 8, 0},{ 2, 2, 1},{ -2, 2, 1},{ 4, 0, 2},{ -4, 0, 2},{ 1, 9, 0},
+ { -1, 9, 0},{ 1,10, 0},{ -1,10, 0},{ 2, 3, 1},{ -2, 3, 1},{ 3, 1, 2},
+ { -3, 1, 2},{ 1,11, 0},{ -1,11, 0},{ 2, 4, 1},{ -2, 4, 1},{ 5, 0, 3},
+ { -5, 0, 3},{ 1,12, 0},{ -1,12, 0},{ 2, 5, 1},{ -2, 5, 1},{ 1,13, 0},
+ { -1,13, 0},{ 2, 6, 1},{ -2, 6, 1},{ 2, 7, 1},{ -2, 7, 1},{ 3, 2, 2},
+ { -3, 2, 2},{ 6, 0, 3},{ -6, 0, 3},{ 1,14, 0},{ -1,14, 0}
+ },
+ //level_add
+ { 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 1, //inc_limit
+ 14, //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 1, 1, 0},{ -1, 1, 0},
+ { 3, 0, 1},{ -3, 0, 1},{ 0, 0, 0},{ 1, 2, 0},{ -1, 2, 0},{ 2, 1, 0},
+ { -2, 1, 0},{ 4, 0, 1},{ -4, 0, 1},{ 1, 3, 0},{ -1, 3, 0},{ 5, 0, 2},
+ { -5, 0, 2},{ 1, 4, 0},{ -1, 4, 0},{ 3, 1, 1},{ -3, 1, 1},{ 2, 2, 0},
+ { -2, 2, 0},{ 1, 5, 0},{ -1, 5, 0},{ 6, 0, 2},{ -6, 0, 2},{ 2, 3, 0},
+ { -2, 3, 0},{ 1, 6, 0},{ -1, 6, 0},{ 4, 1, 1},{ -4, 1, 1},{ 7, 0, 2},
+ { -7, 0, 2},{ 3, 2, 1},{ -3, 2, 1},{ 2, 4, 0},{ -2, 4, 0},{ 1, 7, 0},
+ { -1, 7, 0},{ 2, 5, 0},{ -2, 5, 0},{ 8, 0, 3},{ -8, 0, 3},{ 1, 8, 0},
+ { -1, 8, 0},{ 5, 1, 2},{ -5, 1, 2},{ 3, 3, 1},{ -3, 3, 1},{ 2, 6, 0},
+ { -2, 6, 0},{ 9, 0, 3},{ -9, 0, 3},{ 1, 9, 0},{ -1, 9, 0}
+ },
+ //level_add
+ {10, 6, 4, 4, 3, 3, 3, 2, 2, 2,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 2, //inc_limit
+ 9, //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},{ -3, 0, 0},
+ { 1, 1, 0},{ -1, 1, 0},{ 0, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 1},
+ { -5, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 1, 2, 0},{ -1, 2, 0},{ 6, 0, 1},
+ { -6, 0, 1},{ 3, 1, 0},{ -3, 1, 0},{ 7, 0, 1},{ -7, 0, 1},{ 1, 3, 0},
+ { -1, 3, 0},{ 8, 0, 2},{ -8, 0, 2},{ 2, 2, 0},{ -2, 2, 0},{ 4, 1, 0},
+ { -4, 1, 0},{ 1, 4, 0},{ -1, 4, 0},{ 9, 0, 2},{ -9, 0, 2},{ 5, 1, 1},
+ { -5, 1, 1},{ 2, 3, 0},{ -2, 3, 0},{ 10, 0, 2},{-10, 0, 2},{ 3, 2, 0},
+ { -3, 2, 0},{ 1, 5, 0},{ -1, 5, 0},{ 11, 0, 3},{-11, 0, 3},{ 6, 1, 1},
+ { -6, 1, 1},{ 1, 6, 0},{ -1, 6, 0},{ 2, 4, 0},{ -2, 4, 0},{ 3, 3, 0},
+ { -3, 3, 0},{ 12, 0, 3},{-12, 0, 3},{ 4, 2, 0},{ -4, 2, 0}
+ },
+ //level_add
+ {13, 7, 5, 4, 3, 2, 2,-1,-1,-1 -1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 4, //inc_limit
+ 6, //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},{ -3, 0, 0},
+ { 0, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0},
+ { -6, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 1},
+ { -8, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 9, 0, 1},{ -9, 0, 1},{ 10, 0, 1},
+ {-10, 0, 1},{ 1, 2, 0},{ -1, 2, 0},{ 3, 1, 0},{ -3, 1, 0},{ 11, 0, 2},
+ {-11, 0, 2},{ 4, 1, 0},{ -4, 1, 0},{ 12, 0, 2},{-12, 0, 2},{ 13, 0, 2},
+ {-13, 0, 2},{ 5, 1, 0},{ -5, 1, 0},{ 1, 3, 0},{ -1, 3, 0},{ 2, 2, 0},
+ { -2, 2, 0},{ 14, 0, 2},{-14, 0, 2},{ 6, 1, 0},{ -6, 1, 0},{ 15, 0, 2},
+ {-15, 0, 2},{ 16, 0, 2},{-16, 0, 2},{ 3, 2, 0},{ -3, 2, 0},{ 1, 4, 0},
+ { -1, 4, 0},{ 7, 1, 0},{ -7, 1, 0},{ 17, 0, 2},{-17, 0, 2},
+ },
+ //level_add
+ {18, 8, 4, 2, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 7, //inc_limit
+ 4, //max_run
+ },{
+ { //level / run
+ { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},
+ { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0},
+ { -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 0},{ -8, 0, 0},{ 9, 0, 0},
+ { -9, 0, 0},{ 10, 0, 0},{-10, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 11, 0, 1},
+ {-11, 0, 1},{ 12, 0, 1},{-12, 0, 1},{ 13, 0, 1},{-13, 0, 1},{ 2, 1, 0},
+ { -2, 1, 0},{ 14, 0, 1},{-14, 0, 1},{ 15, 0, 1},{-15, 0, 1},{ 3, 1, 0},
+ { -3, 1, 0},{ 16, 0, 1},{-16, 0, 1},{ 1, 2, 0},{ -1, 2, 0},{ 17, 0, 1},
+ {-17, 0, 1},{ 4, 1, 0},{ -4, 1, 0},{ 18, 0, 1},{-18, 0, 1},{ 5, 1, 0},
+ { -5, 1, 0},{ 19, 0, 1},{-19, 0, 1},{ 20, 0, 1},{-20, 0, 1},{ 6, 1, 0},
+ { -6, 1, 0},{ 21, 0, 1},{-21, 0, 1},{ 2, 2, 0},{ -2, 2, 0},
+ },
+ //level_add
+ {22, 7, 3,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 10, //inc_limit
+ 2, //max_run
+ },{
+ { //level / run
+ { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},
+ { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0},
+ { -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 0},{ -8, 0, 0},{ 9, 0, 0},
+ { -9, 0, 0},{ 10, 0, 0},{-10, 0, 0},{ 11, 0, 0},{-11, 0, 0},{ 12, 0, 0},
+ {-12, 0, 0},{ 13, 0, 0},{-13, 0, 0},{ 14, 0, 0},{-14, 0, 0},{ 15, 0, 0},
+ {-15, 0, 0},{ 16, 0, 0},{-16, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 17, 0, 0},
+ {-17, 0, 0},{ 18, 0, 0},{-18, 0, 0},{ 19, 0, 0},{-19, 0, 0},{ 20, 0, 0},
+ {-20, 0, 0},{ 21, 0, 0},{-21, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 22, 0, 0},
+ {-22, 0, 0},{ 23, 0, 0},{-23, 0, 0},{ 24, 0, 0},{-24, 0, 0},{ 25, 0, 0},
+ {-25, 0, 0},{ 3, 1, 0},{ -3, 1, 0},{ 26, 0, 0},{-26, 0, 0}
+ },
+ //level_add
+ {27, 4,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ INT_MAX, //inc_limit
+ 1, //max_run
+ }
+};
+
+static const residual_vlc_t inter_2dvlc[7] = {
+ {
+ { //level / run
+ { 1, 0, 1},{ -1, 0, 1},{ 1, 1, 1},{ -1, 1, 1},{ 1, 2, 1},{ -1, 2, 1},
+ { 1, 3, 1},{ -1, 3, 1},{ 1, 4, 1},{ -1, 4, 1},{ 1, 5, 1},{ -1, 5, 1},
+ { 1, 6, 1},{ -1, 6, 1},{ 1, 7, 1},{ -1, 7, 1},{ 1, 8, 1},{ -1, 8, 1},
+ { 1, 9, 1},{ -1, 9, 1},{ 1,10, 1},{ -1,10, 1},{ 1,11, 1},{ -1,11, 1},
+ { 1,12, 1},{ -1,12, 1},{ 2, 0, 2},{ -2, 0, 2},{ 1,13, 1},{ -1,13, 1},
+ { 1,14, 1},{ -1,14, 1},{ 1,15, 1},{ -1,15, 1},{ 1,16, 1},{ -1,16, 1},
+ { 1,17, 1},{ -1,17, 1},{ 1,18, 1},{ -1,18, 1},{ 3, 0, 3},{ -3, 0, 3},
+ { 1,19, 1},{ -1,19, 1},{ 1,20, 1},{ -1,20, 1},{ 2, 1, 2},{ -2, 1, 2},
+ { 1,21, 1},{ -1,21, 1},{ 1,22, 1},{ -1,22, 1},{ 1,23, 1},{ -1,23, 1},
+ { 1,24, 1},{ -1,24, 1},{ 1,25, 1},{ -1,25, 1},{ 0, 0,-1}
+ },
+ //level_add
+ { 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2},
+ 3, //golomb_order
+ 0, //inc_limit
+ 25 //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 1, 2, 0},
+ { -1, 2, 0},{ 1, 3, 0},{ -1, 3, 0},{ 1, 4, 0},{ -1, 4, 0},{ 1, 5, 0},
+ { -1, 5, 0},{ 2, 0, 1},{ -2, 0, 1},{ 1, 6, 0},{ -1, 6, 0},{ 1, 7, 0},
+ { -1, 7, 0},{ 1, 8, 0},{ -1, 8, 0},{ 1, 9, 0},{ -1, 9, 0},{ 2, 1, 1},
+ { -2, 1, 1},{ 1,10, 0},{ -1,10, 0},{ 1,11, 0},{ -1,11, 0},{ 3, 0, 2},
+ { -3, 0, 2},{ 1,12, 0},{ -1,12, 0},{ 1,13, 0},{ -1,13, 0},{ 2, 2, 1},
+ { -2, 2, 1},{ 1,14, 0},{ -1,14, 0},{ 2, 3, 1},{ -2, 3, 1},{ 1,15, 0},
+ { -1,15, 0},{ 2, 4, 1},{ -2, 4, 1},{ 1,16, 0},{ -1,16, 0},{ 4, 0, 3},
+ { -4, 0, 3},{ 2, 5, 1},{ -2, 5, 1},{ 1,17, 0},{ -1,17, 0},{ 1,18, 0},
+ { -1,18, 0},{ 2, 6, 1},{ -2, 6, 1},{ 3, 1, 2},{ -3, 1, 2},
+ },
+ //level_add
+ { 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 1, //inc_limit
+ 18 //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 2, 0, 0},
+ { -2, 0, 0},{ 1, 2, 0},{ -1, 2, 0},{ 1, 3, 0},{ -1, 3, 0},{ 3, 0, 1},
+ { -3, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 1, 4, 0},{ -1, 4, 0},{ 1, 5, 0},
+ { -1, 5, 0},{ 1, 6, 0},{ -1, 6, 0},{ 2, 2, 0},{ -2, 2, 0},{ 4, 0, 2},
+ { -4, 0, 2},{ 1, 7, 0},{ -1, 7, 0},{ 3, 1, 1},{ -3, 1, 1},{ 2, 3, 0},
+ { -2, 3, 0},{ 1, 8, 0},{ -1, 8, 0},{ 1, 9, 0},{ -1, 9, 0},{ 5, 0, 2},
+ { -5, 0, 2},{ 2, 4, 0},{ -2, 4, 0},{ 1,10, 0},{ -1,10, 0},{ 2, 5, 0},
+ { -2, 5, 0},{ 1,11, 0},{ -1,11, 0},{ 3, 2, 1},{ -3, 2, 1},{ 6, 0, 2},
+ { -6, 0, 2},{ 4, 1, 2},{ -4, 1, 2},{ 1,12, 0},{ -1,12, 0},{ 2, 6, 0},
+ { -2, 6, 0},{ 3, 3, 1},{ -3, 3, 1},{ 1,13, 0},{ -1,13, 0},
+ },
+ //level_add
+ { 7, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 2, //inc_limit
+ 13 //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 1, 1, 0},
+ { -1, 1, 0},{ 3, 0, 0},{ -3, 0, 0},{ 1, 2, 0},{ -1, 2, 0},{ 2, 1, 0},
+ { -2, 1, 0},{ 4, 0, 1},{ -4, 0, 1},{ 1, 3, 0},{ -1, 3, 0},{ 5, 0, 1},
+ { -5, 0, 1},{ 1, 4, 0},{ -1, 4, 0},{ 3, 1, 0},{ -3, 1, 0},{ 2, 2, 0},
+ { -2, 2, 0},{ 1, 5, 0},{ -1, 5, 0},{ 6, 0, 1},{ -6, 0, 1},{ 2, 3, 0},
+ { -2, 3, 0},{ 1, 6, 0},{ -1, 6, 0},{ 4, 1, 1},{ -4, 1, 1},{ 7, 0, 2},
+ { -7, 0, 2},{ 3, 2, 0},{ -3, 2, 0},{ 1, 7, 0},{ -1, 7, 0},{ 2, 4, 0},
+ { -2, 4, 0},{ 8, 0, 2},{ -8, 0, 2},{ 1, 8, 0},{ -1, 8, 0},{ 3, 3, 0},
+ { -3, 3, 0},{ 2, 5, 0},{ -2, 5, 0},{ 5, 1, 1},{ -5, 1, 1},{ 1, 9, 0},
+ { -1, 9, 0},{ 9, 0, 2},{ -9, 0, 2},{ 4, 2, 1},{ -4, 2, 1},
+ },
+ //level_add
+ {10, 6, 5, 4, 3, 3, 2, 2, 2, 2,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 3, //inc_limit
+ 9 //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},
+ { -3, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},
+ { -5, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 1, 2, 0},{ -1, 2, 0},{ 6, 0, 0},
+ { -6, 0, 0},{ 3, 1, 0},{ -3, 1, 0},{ 7, 0, 1},{ -7, 0, 1},{ 1, 3, 0},
+ { -1, 3, 0},{ 8, 0, 1},{ -8, 0, 1},{ 2, 2, 0},{ -2, 2, 0},{ 4, 1, 0},
+ { -4, 1, 0},{ 1, 4, 0},{ -1, 4, 0},{ 9, 0, 1},{ -9, 0, 1},{ 5, 1, 0},
+ { -5, 1, 0},{ 2, 3, 0},{ -2, 3, 0},{ 1, 5, 0},{ -1, 5, 0},{ 10, 0, 2},
+ {-10, 0, 2},{ 3, 2, 0},{ -3, 2, 0},{ 11, 0, 2},{-11, 0, 2},{ 1, 6, 0},
+ { -1, 6, 0},{ 6, 1, 0},{ -6, 1, 0},{ 3, 3, 0},{ -3, 3, 0},{ 2, 4, 0},
+ { -2, 4, 0},{ 12, 0, 2},{-12, 0, 2},{ 4, 2, 0},{ -4, 2, 0},
+ },
+ //level_add
+ {13, 7, 5, 4, 3, 2, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 6, //inc_limit
+ 6 //max_run
+ },{
+ { //level / run
+ { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},
+ { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 1, 1, 0},
+ { -1, 1, 0},{ 6, 0, 0},{ -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 0},
+ { -8, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 9, 0, 0},{ -9, 0, 0},{ 1, 2, 0},
+ { -1, 2, 0},{ 10, 0, 1},{-10, 0, 1},{ 3, 1, 0},{ -3, 1, 0},{ 11, 0, 1},
+ {-11, 0, 1},{ 4, 1, 0},{ -4, 1, 0},{ 12, 0, 1},{-12, 0, 1},{ 1, 3, 0},
+ { -1, 3, 0},{ 2, 2, 0},{ -2, 2, 0},{ 13, 0, 1},{-13, 0, 1},{ 5, 1, 0},
+ { -5, 1, 0},{ 14, 0, 1},{-14, 0, 1},{ 6, 1, 0},{ -6, 1, 0},{ 1, 4, 0},
+ { -1, 4, 0},{ 15, 0, 1},{-15, 0, 1},{ 3, 2, 0},{ -3, 2, 0},{ 16, 0, 1},
+ {-16, 0, 1},{ 2, 3, 0},{ -2, 3, 0},{ 7, 1, 0},{ -7, 1, 0},
+ },
+ //level_add
+ {17, 8, 4, 3, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ 9, //inc_limit
+ 4 //max_run
+ },{
+ { //level / run
+ { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},
+ { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0},
+ { -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 8, 0, 0},
+ { -8, 0, 0},{ 9, 0, 0},{ -9, 0, 0},{ 10, 0, 0},{-10, 0, 0},{ 11, 0, 0},
+ {-11, 0, 0},{ 12, 0, 0},{-12, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 13, 0, 0},
+ {-13, 0, 0},{ 1, 2, 0},{ -1, 2, 0},{ 14, 0, 0},{-14, 0, 0},{ 15, 0, 0},
+ {-15, 0, 0},{ 3, 1, 0},{ -3, 1, 0},{ 16, 0, 0},{-16, 0, 0},{ 17, 0, 0},
+ {-17, 0, 0},{ 18, 0, 0},{-18, 0, 0},{ 4, 1, 0},{ -4, 1, 0},{ 19, 0, 0},
+ {-19, 0, 0},{ 20, 0, 0},{-20, 0, 0},{ 2, 2, 0},{ -2, 2, 0},{ 1, 3, 0},
+ { -1, 3, 0},{ 5, 1, 0},{ -5, 1, 0},{ 21, 0, 0},{-21, 0, 0},
+ },
+ //level_add
+ {22, 6, 3, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 2, //golomb_order
+ INT_MAX, //inc_limit
+ 3 //max_run
+ }
+};
+
+static const residual_vlc_t chroma_2dvlc[5] = {
+ {
+ { //level / run
+ { 1, 0, 1},{ -1, 0, 1},{ 1, 1, 1},{ -1, 1, 1},{ 1, 2, 1},{ -1, 2, 1},
+ { 1, 3, 1},{ -1, 3, 1},{ 1, 4, 1},{ -1, 4, 1},{ 1, 5, 1},{ -1, 5, 1},
+ { 1, 6, 1},{ -1, 6, 1},{ 2, 0, 2},{ -2, 0, 2},{ 1, 7, 1},{ -1, 7, 1},
+ { 1, 8, 1},{ -1, 8, 1},{ 1, 9, 1},{ -1, 9, 1},{ 1,10, 1},{ -1,10, 1},
+ { 1,11, 1},{ -1,11, 1},{ 1,12, 1},{ -1,12, 1},{ 1,13, 1},{ -1,13, 1},
+ { 1,14, 1},{ -1,14, 1},{ 3, 0, 3},{ -3, 0, 3},{ 1,15, 1},{ -1,15, 1},
+ { 1,16, 1},{ -1,16, 1},{ 1,17, 1},{ -1,17, 1},{ 1,18, 1},{ -1,18, 1},
+ { 1,19, 1},{ -1,19, 1},{ 1,20, 1},{ -1,20, 1},{ 1,21, 1},{ -1,21, 1},
+ { 2, 1, 2},{ -2, 1, 2},{ 1,22, 1},{ -1,22, 1},{ 1,23, 1},{ -1,23, 1},
+ { 1,24, 1},{ -1,24, 1},{ 4, 0, 3},{ -4, 0, 3},{ 0, 0,-1}
+ },
+ //level_add
+ { 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2,-1},
+ 2, //golomb_order
+ 0, //inc_limit
+ 24, //max_run
+ },{
+ { //level / run
+ { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 2, 0, 1},
+ { -2, 0, 1},{ 1, 2, 0},{ -1, 2, 0},{ 1, 3, 0},{ -1, 3, 0},{ 1, 4, 0},
+ { -1, 4, 0},{ 1, 5, 0},{ -1, 5, 0},{ 3, 0, 2},{ -3, 0, 2},{ 1, 6, 0},
+ { -1, 6, 0},{ 1, 7, 0},{ -1, 7, 0},{ 2, 1, 1},{ -2, 1, 1},{ 1, 8, 0},
+ { -1, 8, 0},{ 1, 9, 0},{ -1, 9, 0},{ 1,10, 0},{ -1,10, 0},{ 4, 0, 2},
+ { -4, 0, 2},{ 1,11, 0},{ -1,11, 0},{ 1,12, 0},{ -1,12, 0},{ 1,13, 0},
+ { -1,13, 0},{ 2, 2, 1},{ -2, 2, 1},{ 1,14, 0},{ -1,14, 0},{ 2, 3, 1},
+ { -2, 3, 1},{ 5, 0, 3},{ -5, 0, 3},{ 3, 1, 2},{ -3, 1, 2},{ 1,15, 0},
+ { -1,15, 0},{ 1,16, 0},{ -1,16, 0},{ 1,17, 0},{ -1,17, 0},{ 2, 4, 1},
+ { -2, 4, 1},{ 1,18, 0},{ -1,18, 0},{ 1,19, 0},{ -1,19, 0},
+ },
+ //level_add
+ { 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 2, 2, 2, 2,-1,-1,-1,-1,-1,-1},
+ 0, //golomb_order
+ 1, //inc_limit
+ 19, //max_run
+ },{
+ { //level / run
+ { 1, 0, 0},{ -1, 0, 0},{ 0, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 1, 1, 0},
+ { -1, 1, 0},{ 3, 0, 1},{ -3, 0, 1},{ 1, 2, 0},{ -1, 2, 0},{ 4, 0, 1},
+ { -4, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 1, 3, 0},{ -1, 3, 0},{ 5, 0, 2},
+ { -5, 0, 2},{ 1, 4, 0},{ -1, 4, 0},{ 3, 1, 1},{ -3, 1, 1},{ 2, 2, 0},
+ { -2, 2, 0},{ 1, 5, 0},{ -1, 5, 0},{ 6, 0, 2},{ -6, 0, 2},{ 1, 6, 0},
+ { -1, 6, 0},{ 2, 3, 0},{ -2, 3, 0},{ 7, 0, 2},{ -7, 0, 2},{ 1, 7, 0},
+ { -1, 7, 0},{ 4, 1, 1},{ -4, 1, 1},{ 1, 8, 0},{ -1, 8, 0},{ 3, 2, 1},
+ { -3, 2, 1},{ 2, 4, 0},{ -2, 4, 0},{ 2, 5, 0},{ -2, 5, 0},{ 8, 0, 2},
+ { -8, 0, 2},{ 1, 9, 0},{ -1, 9, 0},{ 1,10, 0},{ -1,10, 0},{ 9, 0, 2},
+ { -9, 0, 2},{ 5, 1, 2},{ -5, 1, 2},{ 3, 3, 1},{ -3, 3, 1},
+ },
+ //level_add
+ {10, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 1, //golomb_order
+ 2, //inc_limit
+ 10, //max_run
+ },{
+ { //level / run
+ { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},
+ { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 1, 1, 0},{ -1, 1, 0},{ 5, 0, 1},
+ { -5, 0, 1},{ 2, 1, 0},{ -2, 1, 0},{ 6, 0, 1},{ -6, 0, 1},{ 1, 2, 0},
+ { -1, 2, 0},{ 7, 0, 1},{ -7, 0, 1},{ 3, 1, 0},{ -3, 1, 0},{ 8, 0, 1},
+ { -8, 0, 1},{ 1, 3, 0},{ -1, 3, 0},{ 2, 2, 0},{ -2, 2, 0},{ 9, 0, 1},
+ { -9, 0, 1},{ 4, 1, 0},{ -4, 1, 0},{ 1, 4, 0},{ -1, 4, 0},{ 10, 0, 1},
+ {-10, 0, 1},{ 3, 2, 0},{ -3, 2, 0},{ 5, 1, 1},{ -5, 1, 1},{ 2, 3, 0},
+ { -2, 3, 0},{ 11, 0, 1},{-11, 0, 1},{ 1, 5, 0},{ -1, 5, 0},{ 12, 0, 1},
+ {-12, 0, 1},{ 1, 6, 0},{ -1, 6, 0},{ 6, 1, 1},{ -6, 1, 1},{ 13, 0, 1},
+ {-13, 0, 1},{ 2, 4, 0},{ -2, 4, 0},{ 1, 7, 0},{ -1, 7, 0},
+ },
+ //level_add
+ {14, 7, 4, 3, 3, 2, 2, 2,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 1, //golomb_order
+ 4, //inc_limit
+ 7, //max_run
+ },{
+ { //level / run
+ { 0, 0, 0},{ 1, 0, 0},{ -1, 0, 0},{ 2, 0, 0},{ -2, 0, 0},{ 3, 0, 0},
+ { -3, 0, 0},{ 4, 0, 0},{ -4, 0, 0},{ 5, 0, 0},{ -5, 0, 0},{ 6, 0, 0},
+ { -6, 0, 0},{ 7, 0, 0},{ -7, 0, 0},{ 8, 0, 0},{ -8, 0, 0},{ 1, 1, 0},
+ { -1, 1, 0},{ 9, 0, 0},{ -9, 0, 0},{ 10, 0, 0},{-10, 0, 0},{ 11, 0, 0},
+ {-11, 0, 0},{ 2, 1, 0},{ -2, 1, 0},{ 12, 0, 0},{-12, 0, 0},{ 13, 0, 0},
+ {-13, 0, 0},{ 3, 1, 0},{ -3, 1, 0},{ 14, 0, 0},{-14, 0, 0},{ 1, 2, 0},
+ { -1, 2, 0},{ 15, 0, 0},{-15, 0, 0},{ 4, 1, 0},{ -4, 1, 0},{ 16, 0, 0},
+ {-16, 0, 0},{ 17, 0, 0},{-17, 0, 0},{ 5, 1, 0},{ -5, 1, 0},{ 1, 3, 0},
+ { -1, 3, 0},{ 2, 2, 0},{ -2, 2, 0},{ 18, 0, 0},{-18, 0, 0},{ 6, 1, 0},
+ { -6, 1, 0},{ 19, 0, 0},{-19, 0, 0},{ 1, 4, 0},{ -1, 4, 0},
+ },
+ //level_add
+ {20, 7, 3, 2, 2,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,
+ -1,-1,-1,-1,-1,-1,-1,-1,-1,-1},
+ 0, //golomb_order
+ INT_MAX, //inc_limit
+ 4, //max_run
+ }
+};
+
+static const uint8_t alpha_tab[64] = {
+ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3,
+ 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20,
+ 22, 24, 26, 28, 30, 33, 33, 35, 35, 36, 37, 37, 39, 39, 42, 44,
+ 46, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64
+};
+
+static const uint8_t beta_tab[64] = {
+ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
+ 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6,
+ 6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 27
+};
+
+static const uint8_t tc_tab[64] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
+ 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4,
+ 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9
+};
+
+static const int_fast8_t left_modifier_l[8] = { 0,-1, 6,-1,-1, 7, 6, 7};
+static const int_fast8_t top_modifier_l[8] = {-1, 1, 5,-1,-1, 5, 7, 7};
+static const int_fast8_t left_modifier_c[7] = { 5,-1, 2,-1, 6, 5, 6};
+static const int_fast8_t top_modifier_c[7] = { 4, 1,-1,-1, 4, 6, 6};
diff --git a/libavcodec/cavsdsp.c b/libavcodec/cavsdsp.c
new file mode 100644
index 0000000000..71aaddba58
--- /dev/null
+++ b/libavcodec/cavsdsp.c
@@ -0,0 +1,511 @@
+/*
+ * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
+ *
+ * DSP functions
+ *
+ * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include "dsputil.h"
+#include "cavsdsp.h"
+
+/*****************************************************************************
+ *
+ * in-loop deblocking filter
+ *
+ ****************************************************************************/
+
+#define P2 p0_p[-3*stride]
+#define P1 p0_p[-2*stride]
+#define P0 p0_p[-1*stride]
+#define Q0 p0_p[ 0*stride]
+#define Q1 p0_p[ 1*stride]
+#define Q2 p0_p[ 2*stride]
+
+static inline void loop_filter_l2(uint8_t *p0_p,int stride,int alpha, int beta) {
+ int p0 = P0;
+ int q0 = Q0;
+
+ if(abs(p0-q0)<alpha && abs(P1-p0)<beta && abs(Q1-q0)<beta) {
+ int s = p0 + q0 + 2;
+ alpha = (alpha>>2) + 2;
+ if(abs(P2-p0) < beta && abs(p0-q0) < alpha) {
+ P0 = (P1 + p0 + s) >> 2;
+ P1 = (2*P1 + s) >> 2;
+ } else
+ P0 = (2*P1 + s) >> 2;
+ if(abs(Q2-q0) < beta && abs(q0-p0) < alpha) {
+ Q0 = (Q1 + q0 + s) >> 2;
+ Q1 = (2*Q1 + s) >> 2;
+ } else
+ Q0 = (2*Q1 + s) >> 2;
+ }
+}
+
+static inline void loop_filter_l1(uint8_t *p0_p, int stride, int alpha, int beta, int tc) {
+ int p0 = P0;
+ int q0 = Q0;
+
+ if(abs(p0-q0)<alpha && abs(P1-p0)<beta && abs(Q1-q0)<beta) {
+ int delta = clip(((q0-p0)*3+P1-Q1+4)>>3,-tc, tc);
+ P0 = clip_uint8(p0+delta);
+ Q0 = clip_uint8(q0-delta);
+ if(abs(P2-p0)<beta) {
+ delta = clip(((P0-P1)*3+P2-Q0+4)>>3, -tc, tc);
+ P1 = clip_uint8(P1+delta);
+ }
+ if(abs(Q2-q0)<beta) {
+ delta = clip(((Q1-Q0)*3+P0-Q2+4)>>3, -tc, tc);
+ Q1 = clip_uint8(Q1-delta);
+ }
+ }
+}
+
+static inline void loop_filter_c2(uint8_t *p0_p,int stride,int alpha, int beta) {
+ int p0 = P0;
+ int q0 = Q0;
+
+ if(abs(p0-q0)<alpha && abs(P1-p0)<beta && abs(Q1-q0)<beta) {
+ int s = p0 + q0 + 2;
+ alpha = (alpha>>2) + 2;
+ if(abs(P2-p0) < beta && abs(p0-q0) < alpha) {
+ P0 = (P1 + p0 + s) >> 2;
+ } else
+ P0 = (2*P1 + s) >> 2;
+ if(abs(Q2-q0) < beta && abs(q0-p0) < alpha) {
+ Q0 = (Q1 + q0 + s) >> 2;
+ } else
+ Q0 = (2*Q1 + s) >> 2;
+ }
+}
+
+static inline void loop_filter_c1(uint8_t *p0_p,int stride,int alpha, int beta,
+ int tc) {
+ if(abs(P0-Q0)<alpha && abs(P1-P0)<beta && abs(Q1-Q0)<beta) {
+ int delta = clip(((Q0-P0)*3+P1-Q1+4)>>3, -tc, tc);
+ P0 = clip_uint8(P0+delta);
+ Q0 = clip_uint8(Q0-delta);
+ }
+}
+
+#undef P0
+#undef P1
+#undef P2
+#undef Q0
+#undef Q1
+#undef Q2
+
+void cavs_filter_lv_c(uint8_t *d, int stride, int alpha, int beta, int tc,
+ int bs1, int bs2) {
+ int i;
+ if(bs1==2)
+ for(i=0;i<16;i++)
+ loop_filter_l2(d + i*stride,1,alpha,beta);
+ else {
+ if(bs1)
+ for(i=0;i<8;i++)
+ loop_filter_l1(d + i*stride,1,alpha,beta,tc);
+ if (bs2)
+ for(i=8;i<16;i++)
+ loop_filter_l1(d + i*stride,1,alpha,beta,tc);
+ }
+}
+
+void cavs_filter_lh_c(uint8_t *d, int stride, int alpha, int beta, int tc,
+ int bs1, int bs2) {
+ int i;
+ if(bs1==2)
+ for(i=0;i<16;i++)
+ loop_filter_l2(d + i,stride,alpha,beta);
+ else {
+ if(bs1)
+ for(i=0;i<8;i++)
+ loop_filter_l1(d + i,stride,alpha,beta,tc);
+ if (bs2)
+ for(i=8;i<16;i++)
+ loop_filter_l1(d + i,stride,alpha,beta,tc);
+ }
+}
+
+void cavs_filter_cv_c(uint8_t *d, int stride, int alpha, int beta, int tc,
+ int bs1, int bs2) {
+ int i;
+ if(bs1==2)
+ for(i=0;i<8;i++)
+ loop_filter_c2(d + i*stride,1,alpha,beta);
+ else {
+ if(bs1)
+ for(i=0;i<4;i++)
+ loop_filter_c1(d + i*stride,1,alpha,beta,tc);
+ if (bs2)
+ for(i=4;i<8;i++)
+ loop_filter_c1(d + i*stride,1,alpha,beta,tc);
+ }
+}
+
+void cavs_filter_ch_c(uint8_t *d, int stride, int alpha, int beta, int tc,
+ int bs1, int bs2) {
+ int i;
+ if(bs1==2)
+ for(i=0;i<8;i++)
+ loop_filter_c2(d + i,stride,alpha,beta);
+ else {
+ if(bs1)
+ for(i=0;i<4;i++)
+ loop_filter_c1(d + i,stride,alpha,beta,tc);
+ if (bs2)
+ for(i=4;i<8;i++)
+ loop_filter_c1(d + i,stride,alpha,beta,tc);
+ }
+}
+
+/*****************************************************************************
+ *
+ * inverse transform
+ *
+ ****************************************************************************/
+
+void cavs_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride) {
+ int i;
+ DCTELEM (*src)[8] = (DCTELEM(*)[8])block;
+ uint8_t *cm = cropTbl + MAX_NEG_CROP;
+
+ for( i = 0; i < 8; i++ ) {
+ const int a0 = 3*src[i][1] - (src[i][7]<<1);
+ const int a1 = 3*src[i][3] + (src[i][5]<<1);
+ const int a2 = (src[i][3]<<1) - 3*src[i][5];
+ const int a3 = (src[i][1]<<1) + 3*src[i][7];
+
+ const int b4 = ((a0 + a1 + a3)<<1) + a1;
+ const int b5 = ((a0 - a1 + a2)<<1) + a0;
+ const int b6 = ((a3 - a2 - a1)<<1) + a3;
+ const int b7 = ((a0 - a2 - a3)<<1) - a2;
+
+ const int a7 = (src[i][2]<<2) - 10*src[i][6];
+ const int a6 = (src[i][6]<<2) + 10*src[i][2];
+ const int a5 = (src[i][0] - src[i][4]) << 3;
+ const int a4 = (src[i][0] + src[i][4]) << 3;
+
+ const int b0 = a4 + a6;
+ const int b1 = a5 + a7;
+ const int b2 = a5 - a7;
+ const int b3 = a4 - a6;
+
+ src[i][0] = (b0 + b4 + 4) >> 3;
+ src[i][1] = (b1 + b5 + 4) >> 3;
+ src[i][2] = (b2 + b6 + 4) >> 3;
+ src[i][3] = (b3 + b7 + 4) >> 3;
+ src[i][4] = (b3 - b7 + 4) >> 3;
+ src[i][5] = (b2 - b6 + 4) >> 3;
+ src[i][6] = (b1 - b5 + 4) >> 3;
+ src[i][7] = (b0 - b4 + 4) >> 3;
+ }
+ for( i = 0; i < 8; i++ ) {
+ const int a0 = 3*src[1][i] - (src[7][i]<<1);
+ const int a1 = 3*src[3][i] + (src[5][i]<<1);
+ const int a2 = (src[3][i]<<1) - 3*src[5][i];
+ const int a3 = (src[1][i]<<1) + 3*src[7][i];
+
+ const int b4 = ((a0 + a1 + a3)<<1) + a1;
+ const int b5 = ((a0 - a1 + a2)<<1) + a0;
+ const int b6 = ((a3 - a2 - a1)<<1) + a3;
+ const int b7 = ((a0 - a2 - a3)<<1) - a2;
+
+ const int a7 = (src[2][i]<<2) - 10*src[6][i];
+ const int a6 = (src[6][i]<<2) + 10*src[2][i];
+ const int a5 = (src[0][i] - src[4][i]) << 3;
+ const int a4 = (src[0][i] + src[4][i]) << 3;
+
+ const int b0 = a4 + a6;
+ const int b1 = a5 + a7;
+ const int b2 = a5 - a7;
+ const int b3 = a4 - a6;
+
+ dst[i + 0*stride] = cm[ dst[i + 0*stride] + ((b0 + b4 + 64) >> 7)];
+ dst[i + 1*stride] = cm[ dst[i + 1*stride] + ((b1 + b5 + 64) >> 7)];
+ dst[i + 2*stride] = cm[ dst[i + 2*stride] + ((b2 + b6 + 64) >> 7)];
+ dst[i + 3*stride] = cm[ dst[i + 3*stride] + ((b3 + b7 + 64) >> 7)];
+ dst[i + 4*stride] = cm[ dst[i + 4*stride] + ((b3 - b7 + 64) >> 7)];
+ dst[i + 5*stride] = cm[ dst[i + 5*stride] + ((b2 - b6 + 64) >> 7)];
+ dst[i + 6*stride] = cm[ dst[i + 6*stride] + ((b1 - b5 + 64) >> 7)];
+ dst[i + 7*stride] = cm[ dst[i + 7*stride] + ((b0 - b4 + 64) >> 7)];
+ }
+}
+
+/*****************************************************************************
+ *
+ * motion compensation
+ *
+ ****************************************************************************/
+
+#define CAVS_SUBPIX(OPNAME, OP, NAME, A, B, C, D, E, F) \
+static void OPNAME ## cavs_filt8_h_ ## NAME(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
+ const int h=8;\
+ uint8_t *cm = cropTbl + MAX_NEG_CROP;\
+ int i;\
+ for(i=0; i<h; i++)\
+ {\
+ OP(dst[0], A*src[-2] + B*src[-1] + C*src[0] + D*src[1] + E*src[2] + F*src[3]);\
+ OP(dst[1], A*src[-1] + B*src[ 0] + C*src[1] + D*src[2] + E*src[3] + F*src[4]);\
+ OP(dst[2], A*src[ 0] + B*src[ 1] + C*src[2] + D*src[3] + E*src[4] + F*src[5]);\
+ OP(dst[3], A*src[ 1] + B*src[ 2] + C*src[3] + D*src[4] + E*src[5] + F*src[6]);\
+ OP(dst[4], A*src[ 2] + B*src[ 3] + C*src[4] + D*src[5] + E*src[6] + F*src[7]);\
+ OP(dst[5], A*src[ 3] + B*src[ 4] + C*src[5] + D*src[6] + E*src[7] + F*src[8]);\
+ OP(dst[6], A*src[ 4] + B*src[ 5] + C*src[6] + D*src[7] + E*src[8] + F*src[9]);\
+ OP(dst[7], A*src[ 5] + B*src[ 6] + C*src[7] + D*src[8] + E*src[9] + F*src[10]);\
+ dst+=dstStride;\
+ src+=srcStride;\
+ }\
+}\
+\
+static void OPNAME ## cavs_filt8_v_ ## NAME(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
+ const int w=8;\
+ uint8_t *cm = cropTbl + MAX_NEG_CROP;\
+ int i;\
+ for(i=0; i<w; i++)\
+ {\
+ const int srcB= src[-2*srcStride];\
+ const int srcA= src[-1*srcStride];\
+ const int src0= src[0 *srcStride];\
+ const int src1= src[1 *srcStride];\
+ const int src2= src[2 *srcStride];\
+ const int src3= src[3 *srcStride];\
+ const int src4= src[4 *srcStride];\
+ const int src5= src[5 *srcStride];\
+ const int src6= src[6 *srcStride];\
+ const int src7= src[7 *srcStride];\
+ const int src8= src[8 *srcStride];\
+ const int src9= src[9 *srcStride];\
+ const int src10= src[10 *srcStride];\
+ OP(dst[0*dstStride], A*srcB + B*srcA + C*src0 + D*src1 + E*src2 + F*src3);\
+ OP(dst[1*dstStride], A*srcA + B*src0 + C*src1 + D*src2 + E*src3 + F*src4);\
+ OP(dst[2*dstStride], A*src0 + B*src1 + C*src2 + D*src3 + E*src4 + F*src5);\
+ OP(dst[3*dstStride], A*src1 + B*src2 + C*src3 + D*src4 + E*src5 + F*src6);\
+ OP(dst[4*dstStride], A*src2 + B*src3 + C*src4 + D*src5 + E*src6 + F*src7);\
+ OP(dst[5*dstStride], A*src3 + B*src4 + C*src5 + D*src6 + E*src7 + F*src8);\
+ OP(dst[6*dstStride], A*src4 + B*src5 + C*src6 + D*src7 + E*src8 + F*src9);\
+ OP(dst[7*dstStride], A*src5 + B*src6 + C*src7 + D*src8 + E*src9 + F*src10);\
+ dst++;\
+ src++;\
+ }\
+}\
+\
+static void OPNAME ## cavs_filt16_v_ ## NAME(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
+ OPNAME ## cavs_filt8_v_ ## NAME(dst , src , dstStride, srcStride);\
+ OPNAME ## cavs_filt8_v_ ## NAME(dst+8, src+8, dstStride, srcStride);\
+ src += 8*srcStride;\
+ dst += 8*dstStride;\
+ OPNAME ## cavs_filt8_v_ ## NAME(dst , src , dstStride, srcStride);\
+ OPNAME ## cavs_filt8_v_ ## NAME(dst+8, src+8, dstStride, srcStride);\
+}\
+\
+static void OPNAME ## cavs_filt16_h_ ## NAME(uint8_t *dst, uint8_t *src, int dstStride, int srcStride){\
+ OPNAME ## cavs_filt8_h_ ## NAME(dst , src , dstStride, srcStride);\
+ OPNAME ## cavs_filt8_h_ ## NAME(dst+8, src+8, dstStride, srcStride);\
+ src += 8*srcStride;\
+ dst += 8*dstStride;\
+ OPNAME ## cavs_filt8_h_ ## NAME(dst , src , dstStride, srcStride);\
+ OPNAME ## cavs_filt8_h_ ## NAME(dst+8, src+8, dstStride, srcStride);\
+}\
+
+#define CAVS_SUBPIX_HV(OPNAME, OP, NAME, AH, BH, CH, DH, EH, FH, AV, BV, CV, DV, EV, FV, FULL) \
+static void OPNAME ## cavs_filt8_hv_ ## NAME(uint8_t *dst, uint8_t *src1, uint8_t *src2, int dstStride, int srcStride){\
+ int16_t temp[8*(8+5)];\
+ int16_t *tmp = temp;\
+ const int h=8;\
+ const int w=8;\
+ uint8_t *cm = cropTbl + MAX_NEG_CROP;\
+ int i;\
+ src1 -= 2*srcStride;\
+ for(i=0; i<h+5; i++)\
+ {\
+ tmp[0]= AH*src1[-2] + BH*src1[-1] + CH*src1[0] + DH*src1[1] + EH*src1[2] + FH*src1[3];\
+ tmp[1]= AH*src1[-1] + BH*src1[ 0] + CH*src1[1] + DH*src1[2] + EH*src1[3] + FH*src1[4];\
+ tmp[2]= AH*src1[ 0] + BH*src1[ 1] + CH*src1[2] + DH*src1[3] + EH*src1[4] + FH*src1[5];\
+ tmp[3]= AH*src1[ 1] + BH*src1[ 2] + CH*src1[3] + DH*src1[4] + EH*src1[5] + FH*src1[6];\
+ tmp[4]= AH*src1[ 2] + BH*src1[ 3] + CH*src1[4] + DH*src1[5] + EH*src1[6] + FH*src1[7];\
+ tmp[5]= AH*src1[ 3] + BH*src1[ 4] + CH*src1[5] + DH*src1[6] + EH*src1[7] + FH*src1[8];\
+ tmp[6]= AH*src1[ 4] + BH*src1[ 5] + CH*src1[6] + DH*src1[7] + EH*src1[8] + FH*src1[9];\
+ tmp[7]= AH*src1[ 5] + BH*src1[ 6] + CH*src1[7] + DH*src1[8] + EH*src1[9] + FH*src1[10];\
+ tmp+=8;\
+ src1+=srcStride;\
+ }\
+ if(FULL) {\
+ tmp = temp+8*2; \
+ for(i=0; i<w; i++) \
+ { \
+ const int tmpB= tmp[-2*8]; \
+ const int tmpA= tmp[-1*8]; \
+ const int tmp0= tmp[0 *8]; \
+ const int tmp1= tmp[1 *8]; \
+ const int tmp2= tmp[2 *8]; \
+ const int tmp3= tmp[3 *8]; \
+ const int tmp4= tmp[4 *8]; \
+ const int tmp5= tmp[5 *8]; \
+ const int tmp6= tmp[6 *8]; \
+ const int tmp7= tmp[7 *8]; \
+ const int tmp8= tmp[8 *8]; \
+ const int tmp9= tmp[9 *8]; \
+ const int tmp10=tmp[10*8]; \
+ OP(dst[0*dstStride], AV*tmpB + BV*tmpA + CV*tmp0 + DV*tmp1 + EV*tmp2 + FV*tmp3 + 64*src2[0*srcStride]); \
+ OP(dst[1*dstStride], AV*tmpA + BV*tmp0 + CV*tmp1 + DV*tmp2 + EV*tmp3 + FV*tmp4 + 64*src2[1*srcStride]); \
+ OP(dst[2*dstStride], AV*tmp0 + BV*tmp1 + CV*tmp2 + DV*tmp3 + EV*tmp4 + FV*tmp5 + 64*src2[2*srcStride]); \
+ OP(dst[3*dstStride], AV*tmp1 + BV*tmp2 + CV*tmp3 + DV*tmp4 + EV*tmp5 + FV*tmp6 + 64*src2[3*srcStride]); \
+ OP(dst[4*dstStride], AV*tmp2 + BV*tmp3 + CV*tmp4 + DV*tmp5 + EV*tmp6 + FV*tmp7 + 64*src2[4*srcStride]); \
+ OP(dst[5*dstStride], AV*tmp3 + BV*tmp4 + CV*tmp5 + DV*tmp6 + EV*tmp7 + FV*tmp8 + 64*src2[5*srcStride]); \
+ OP(dst[6*dstStride], AV*tmp4 + BV*tmp5 + CV*tmp6 + DV*tmp7 + EV*tmp8 + FV*tmp9 + 64*src2[6*srcStride]); \
+ OP(dst[7*dstStride], AV*tmp5 + BV*tmp6 + CV*tmp7 + DV*tmp8 + EV*tmp9 + FV*tmp10 + 64*src2[7*srcStride]); \
+ dst++; \
+ tmp++; \
+ src2++; \
+ } \
+ } else {\
+ tmp = temp+8*2; \
+ for(i=0; i<w; i++) \
+ { \
+ const int tmpB= tmp[-2*8]; \
+ const int tmpA= tmp[-1*8]; \
+ const int tmp0= tmp[0 *8]; \
+ const int tmp1= tmp[1 *8]; \
+ const int tmp2= tmp[2 *8]; \
+ const int tmp3= tmp[3 *8]; \
+ const int tmp4= tmp[4 *8]; \
+ const int tmp5= tmp[5 *8]; \
+ const int tmp6= tmp[6 *8]; \
+ const int tmp7= tmp[7 *8]; \
+ const int tmp8= tmp[8 *8]; \
+ const int tmp9= tmp[9 *8]; \
+ const int tmp10=tmp[10*8]; \
+ OP(dst[0*dstStride], AV*tmpB + BV*tmpA + CV*tmp0 + DV*tmp1 + EV*tmp2 + FV*tmp3); \
+ OP(dst[1*dstStride], AV*tmpA + BV*tmp0 + CV*tmp1 + DV*tmp2 + EV*tmp3 + FV*tmp4); \
+ OP(dst[2*dstStride], AV*tmp0 + BV*tmp1 + CV*tmp2 + DV*tmp3 + EV*tmp4 + FV*tmp5); \
+ OP(dst[3*dstStride], AV*tmp1 + BV*tmp2 + CV*tmp3 + DV*tmp4 + EV*tmp5 + FV*tmp6); \
+ OP(dst[4*dstStride], AV*tmp2 + BV*tmp3 + CV*tmp4 + DV*tmp5 + EV*tmp6 + FV*tmp7); \
+ OP(dst[5*dstStride], AV*tmp3 + BV*tmp4 + CV*tmp5 + DV*tmp6 + EV*tmp7 + FV*tmp8); \
+ OP(dst[6*dstStride], AV*tmp4 + BV*tmp5 + CV*tmp6 + DV*tmp7 + EV*tmp8 + FV*tmp9); \
+ OP(dst[7*dstStride], AV*tmp5 + BV*tmp6 + CV*tmp7 + DV*tmp8 + EV*tmp9 + FV*tmp10); \
+ dst++; \
+ tmp++; \
+ } \
+ }\
+}\
+\
+static void OPNAME ## cavs_filt16_hv_ ## NAME(uint8_t *dst, uint8_t *src1, uint8_t *src2, int dstStride, int srcStride){ \
+ OPNAME ## cavs_filt8_hv_ ## NAME(dst , src1, src2 , dstStride, srcStride); \
+ OPNAME ## cavs_filt8_hv_ ## NAME(dst+8, src1+8, src2+8, dstStride, srcStride); \
+ src1 += 8*srcStride;\
+ src2 += 8*srcStride;\
+ dst += 8*dstStride;\
+ OPNAME ## cavs_filt8_hv_ ## NAME(dst , src1, src2 , dstStride, srcStride); \
+ OPNAME ## cavs_filt8_hv_ ## NAME(dst+8, src1+8, src2+8, dstStride, srcStride); \
+}\
+
+#define CAVS_MC(OPNAME, SIZE) \
+void OPNAME ## cavs_qpel ## SIZE ## _mc00_c (uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## pixels ## SIZE ## _c(dst, src, stride, SIZE);\
+}\
+void OPNAME ## cavs_qpel ## SIZE ## _mc10_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _h_qpel_l(dst, src, stride, stride);\
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc20_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _h_hpel(dst, src, stride, stride);\
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc30_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _h_qpel_r(dst, src, stride, stride);\
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc01_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _v_qpel_l(dst, src, stride, stride);\
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc02_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _v_hpel(dst, src, stride, stride);\
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc03_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _v_qpel_r(dst, src, stride, stride);\
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc22_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_jj(dst, src, NULL, stride, stride); \
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc11_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_egpr(dst, src, src, stride, stride); \
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc13_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_egpr(dst, src, src+stride, stride, stride); \
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc31_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_egpr(dst, src, src+1, stride, stride); \
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc33_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_egpr(dst, src, src+stride+1,stride, stride); \
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc21_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_ff(dst, src, src+stride+1,stride, stride); \
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc12_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_ii(dst, src, src+stride+1,stride, stride); \
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc32_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_kk(dst, src, src+stride+1,stride, stride); \
+}\
+\
+void OPNAME ## cavs_qpel ## SIZE ## _mc23_c(uint8_t *dst, uint8_t *src, int stride){\
+ OPNAME ## cavs_filt ## SIZE ## _hv_qq(dst, src, src+stride+1,stride, stride); \
+}\
+
+#define op_put1(a, b) a = cm[((b)+4)>>3]
+#define op_put2(a, b) a = cm[((b)+64)>>7]
+#define op_put3(a, b) a = cm[((b)+32)>>6]
+#define op_put4(a, b) a = cm[((b)+512)>>10]
+#define op_avg1(a, b) a = ((a)+cm[((b)+4)>>3] +1)>>1
+#define op_avg2(a, b) a = ((a)+cm[((b)+64)>>7] +1)>>1
+#define op_avg3(a, b) a = ((a)+cm[((b)+32)>>6] +1)>>1
+#define op_avg4(a, b) a = ((a)+cm[((b)+512)>>10]+1)>>1
+CAVS_SUBPIX(put_ , op_put1, hpel, 0, -1, 5, 5, -1, 0)
+CAVS_SUBPIX(put_ , op_put2, qpel_l, -1, -2, 96, 42, -7, 0)
+CAVS_SUBPIX(put_ , op_put2, qpel_r, 0, -7, 42, 96, -2, -1)
+CAVS_SUBPIX_HV(put_, op_put3, jj, 0, -1, 5, 5, -1, 0, 0, -1, 5, 5, -1, 0, 0)
+CAVS_SUBPIX_HV(put_, op_put4, ff, 0, -1, 5, 5, -1, 0, -1, -2, 96, 42, -7, 0, 0)
+CAVS_SUBPIX_HV(put_, op_put4, ii, -1, -2, 96, 42, -7, 0, 0, -1, 5, 5, -1, 0, 0)
+CAVS_SUBPIX_HV(put_, op_put4, kk, 0, -7, 42, 96, -2, -1, 0, -1, 5, 5, -1, 0, 0)
+CAVS_SUBPIX_HV(put_, op_put4, qq, 0, -1, 5, 5, -1, 0, 0, -7, 42, 96, -2,-1, 0)
+CAVS_SUBPIX_HV(put_, op_put2, egpr, 0, -1, 5, 5, -1, 0, 0, -1, 5, 5, -1, 0, 1)
+CAVS_SUBPIX(avg_ , op_avg1, hpel, 0, -1, 5, 5, -1, 0)
+CAVS_SUBPIX(avg_ , op_avg2, qpel_l, -1, -2, 96, 42, -7, 0)
+CAVS_SUBPIX(avg_ , op_avg2, qpel_r, 0, -7, 42, 96, -2, -1)
+CAVS_SUBPIX_HV(avg_, op_avg3, jj, 0, -1, 5, 5, -1, 0, 0, -1, 5, 5, -1, 0, 0)
+CAVS_SUBPIX_HV(avg_, op_avg4, ff, 0, -1, 5, 5, -1, 0, -1, -2, 96, 42, -7, 0, 0)
+CAVS_SUBPIX_HV(avg_, op_avg4, ii, -1, -2, 96, 42, -7, 0, 0, -1, 5, 5, -1, 0, 0)
+CAVS_SUBPIX_HV(avg_, op_avg4, kk, 0, -7, 42, 96, -2, -1, 0, -1, 5, 5, -1, 0, 0)
+CAVS_SUBPIX_HV(avg_, op_avg4, qq, 0, -1, 5, 5, -1, 0, 0, -7, 42, 96, -2,-1, 0)
+CAVS_SUBPIX_HV(avg_, op_avg2, egpr, 0, -1, 5, 5, -1, 0, 0, -1, 5, 5, -1, 0, 1)
+CAVS_MC(put_, 8)
+CAVS_MC(put_, 16)
+CAVS_MC(avg_, 8)
+CAVS_MC(avg_, 16)
diff --git a/libavcodec/cavsdsp.h b/libavcodec/cavsdsp.h
new file mode 100644
index 0000000000..9425b9e448
--- /dev/null
+++ b/libavcodec/cavsdsp.h
@@ -0,0 +1,95 @@
+/*
+ * Chinese AVS video (AVS1-P2, JiZhun profile) decoder.
+ * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
+ *
+ * DSP function prototypes
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+void put_cavs_qpel16_mc00_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc01_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc02_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc03_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc10_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc11_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc12_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc13_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc20_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc21_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc22_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc23_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc30_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc31_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc32_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel16_mc33_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc00_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc01_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc02_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc03_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc10_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc11_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc12_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc13_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc20_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc21_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc22_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc23_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc30_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc31_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc32_c(uint8_t *dst, uint8_t *src, int stride);
+void put_cavs_qpel8_mc33_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc00_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc01_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc02_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc03_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc10_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc11_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc12_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc13_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc20_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc21_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc22_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc23_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc30_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc31_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc32_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel16_mc33_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc00_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc01_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc02_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc03_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc10_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc11_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc12_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc13_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc20_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc21_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc22_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc23_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc30_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc31_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc32_c(uint8_t *dst, uint8_t *src, int stride);
+void avg_cavs_qpel8_mc33_c(uint8_t *dst, uint8_t *src, int stride);
+void cavs_filter_lv_c(uint8_t *d, int stride, int alpha, int beta, int tc, int bs1, int bs2);
+void cavs_filter_lh_c(uint8_t *d, int stride, int alpha, int beta, int tc, int bs1, int bs2);
+void cavs_filter_cv_c(uint8_t *d, int stride, int alpha, int beta, int tc, int bs1, int bs2);
+void cavs_filter_ch_c(uint8_t *d, int stride, int alpha, int beta, int tc, int bs1, int bs2);
+void cavs_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);
+
+void put_pixels8_c(uint8_t *block, const uint8_t *pixels, int line_size, int h);
+void put_pixels16_c(uint8_t *block, const uint8_t *pixels, int line_size, int h);
+void avg_pixels8_c(uint8_t *block, const uint8_t *pixels, int line_size, int h);
+void avg_pixels16_c(uint8_t *block, const uint8_t *pixels, int line_size, int h);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 05:13:53 +0000