yading@10: /* yading@10: * Chinese AVS video (AVS1-P2, JiZhun profile) decoder. yading@10: * Copyright (c) 2006 Stefan Gehrer yading@10: * yading@10: * This file is part of FFmpeg. yading@10: * yading@10: * FFmpeg is free software; you can redistribute it and/or yading@10: * modify it under the terms of the GNU Lesser General Public yading@10: * License as published by the Free Software Foundation; either yading@10: * version 2.1 of the License, or (at your option) any later version. yading@10: * yading@10: * FFmpeg is distributed in the hope that it will be useful, yading@10: * but WITHOUT ANY WARRANTY; without even the implied warranty of yading@10: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU yading@10: * Lesser General Public License for more details. yading@10: * yading@10: * You should have received a copy of the GNU Lesser General Public yading@10: * License along with FFmpeg; if not, write to the Free Software yading@10: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA yading@10: */ yading@10: yading@10: /** yading@10: * @file yading@10: * Chinese AVS video (AVS1-P2, JiZhun profile) decoder yading@10: * @author Stefan Gehrer yading@10: */ yading@10: yading@10: #include "avcodec.h" yading@10: #include "get_bits.h" yading@10: #include "golomb.h" yading@10: #include "h264chroma.h" yading@10: #include "mathops.h" yading@10: #include "cavs.h" yading@10: yading@10: static const uint8_t alpha_tab[64] = { yading@10: 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 3, 3, yading@10: 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, yading@10: 22, 24, 26, 28, 30, 33, 33, 35, 35, 36, 37, 37, 39, 39, 42, 44, yading@10: 46, 48, 50, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 yading@10: }; yading@10: yading@10: static const uint8_t beta_tab[64] = { yading@10: 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, yading@10: 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, yading@10: 6, 7, 7, 7, 8, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 14, yading@10: 15, 16, 17, 18, 19, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 27 yading@10: }; yading@10: yading@10: static const uint8_t tc_tab[64] = { yading@10: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, yading@10: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, yading@10: 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, yading@10: 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9 yading@10: }; yading@10: yading@10: /** mark block as unavailable, i.e. out of picture yading@10: or not yet decoded */ yading@10: static const cavs_vector un_mv = { 0, 0, 1, NOT_AVAIL }; yading@10: yading@10: static const int8_t left_modifier_l[8] = { 0, -1, 6, -1, -1, 7, 6, 7 }; yading@10: static const int8_t top_modifier_l[8] = { -1, 1, 5, -1, -1, 5, 7, 7 }; yading@10: static const int8_t left_modifier_c[7] = { 5, -1, 2, -1, 6, 5, 6 }; yading@10: static const int8_t top_modifier_c[7] = { 4, 1, -1, -1, 4, 6, 6 }; yading@10: yading@10: /***************************************************************************** yading@10: * yading@10: * in-loop deblocking filter yading@10: * yading@10: ****************************************************************************/ yading@10: yading@10: static inline int get_bs(cavs_vector *mvP, cavs_vector *mvQ, int b) yading@10: { yading@10: if ((mvP->ref == REF_INTRA) || (mvQ->ref == REF_INTRA)) yading@10: return 2; yading@10: if ((abs(mvP->x - mvQ->x) >= 4) || (abs(mvP->y - mvQ->y) >= 4)) yading@10: return 1; yading@10: if (b) { yading@10: mvP += MV_BWD_OFFS; yading@10: mvQ += MV_BWD_OFFS; yading@10: if ((abs(mvP->x - mvQ->x) >= 4) || (abs(mvP->y - mvQ->y) >= 4)) yading@10: return 1; yading@10: } else { yading@10: if (mvP->ref != mvQ->ref) yading@10: return 1; yading@10: } yading@10: return 0; yading@10: } yading@10: yading@10: #define SET_PARAMS \ yading@10: alpha = alpha_tab[av_clip(qp_avg + h->alpha_offset, 0, 63)]; \ yading@10: beta = beta_tab[av_clip(qp_avg + h->beta_offset, 0, 63)]; \ yading@10: tc = tc_tab[av_clip(qp_avg + h->alpha_offset, 0, 63)]; yading@10: yading@10: /** yading@10: * in-loop deblocking filter for a single macroblock yading@10: * yading@10: * boundary strength (bs) mapping: yading@10: * yading@10: * --4---5-- yading@10: * 0 2 | yading@10: * | 6 | 7 | yading@10: * 1 3 | yading@10: * --------- yading@10: * yading@10: */ yading@10: void ff_cavs_filter(AVSContext *h, enum cavs_mb mb_type) yading@10: { yading@10: uint8_t bs[8]; yading@10: int qp_avg, alpha, beta, tc; yading@10: int i; yading@10: yading@10: /* save un-deblocked lines */ yading@10: h->topleft_border_y = h->top_border_y[h->mbx * 16 + 15]; yading@10: h->topleft_border_u = h->top_border_u[h->mbx * 10 + 8]; yading@10: h->topleft_border_v = h->top_border_v[h->mbx * 10 + 8]; yading@10: memcpy(&h->top_border_y[h->mbx * 16], h->cy + 15 * h->l_stride, 16); yading@10: memcpy(&h->top_border_u[h->mbx * 10 + 1], h->cu + 7 * h->c_stride, 8); yading@10: memcpy(&h->top_border_v[h->mbx * 10 + 1], h->cv + 7 * h->c_stride, 8); yading@10: for (i = 0; i < 8; i++) { yading@10: h->left_border_y[i * 2 + 1] = *(h->cy + 15 + (i * 2 + 0) * h->l_stride); yading@10: h->left_border_y[i * 2 + 2] = *(h->cy + 15 + (i * 2 + 1) * h->l_stride); yading@10: h->left_border_u[i + 1] = *(h->cu + 7 + i * h->c_stride); yading@10: h->left_border_v[i + 1] = *(h->cv + 7 + i * h->c_stride); yading@10: } yading@10: if (!h->loop_filter_disable) { yading@10: /* determine bs */ yading@10: if (mb_type == I_8X8) yading@10: memset(bs, 2, 8); yading@10: else{ yading@10: memset(bs, 0, 8); yading@10: if (ff_cavs_partition_flags[mb_type] & SPLITV) { yading@10: bs[2] = get_bs(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X1], mb_type > P_8X8); yading@10: bs[3] = get_bs(&h->mv[MV_FWD_X2], &h->mv[MV_FWD_X3], mb_type > P_8X8); yading@10: } yading@10: if (ff_cavs_partition_flags[mb_type] & SPLITH) { yading@10: bs[6] = get_bs(&h->mv[MV_FWD_X0], &h->mv[MV_FWD_X2], mb_type > P_8X8); yading@10: bs[7] = get_bs(&h->mv[MV_FWD_X1], &h->mv[MV_FWD_X3], mb_type > P_8X8); yading@10: } yading@10: bs[0] = get_bs(&h->mv[MV_FWD_A1], &h->mv[MV_FWD_X0], mb_type > P_8X8); yading@10: bs[1] = get_bs(&h->mv[MV_FWD_A3], &h->mv[MV_FWD_X2], mb_type > P_8X8); yading@10: bs[4] = get_bs(&h->mv[MV_FWD_B2], &h->mv[MV_FWD_X0], mb_type > P_8X8); yading@10: bs[5] = get_bs(&h->mv[MV_FWD_B3], &h->mv[MV_FWD_X1], mb_type > P_8X8); yading@10: } yading@10: if (AV_RN64(bs)) { yading@10: if (h->flags & A_AVAIL) { yading@10: qp_avg = (h->qp + h->left_qp + 1) >> 1; yading@10: SET_PARAMS; yading@10: h->cdsp.cavs_filter_lv(h->cy, h->l_stride, alpha, beta, tc, bs[0], bs[1]); yading@10: h->cdsp.cavs_filter_cv(h->cu, h->c_stride, alpha, beta, tc, bs[0], bs[1]); yading@10: h->cdsp.cavs_filter_cv(h->cv, h->c_stride, alpha, beta, tc, bs[0], bs[1]); yading@10: } yading@10: qp_avg = h->qp; yading@10: SET_PARAMS; yading@10: h->cdsp.cavs_filter_lv(h->cy + 8, h->l_stride, alpha, beta, tc, bs[2], bs[3]); yading@10: h->cdsp.cavs_filter_lh(h->cy + 8 * h->l_stride, h->l_stride, alpha, beta, tc, bs[6], bs[7]); yading@10: yading@10: if (h->flags & B_AVAIL) { yading@10: qp_avg = (h->qp + h->top_qp[h->mbx] + 1) >> 1; yading@10: SET_PARAMS; yading@10: h->cdsp.cavs_filter_lh(h->cy, h->l_stride, alpha, beta, tc, bs[4], bs[5]); yading@10: h->cdsp.cavs_filter_ch(h->cu, h->c_stride, alpha, beta, tc, bs[4], bs[5]); yading@10: h->cdsp.cavs_filter_ch(h->cv, h->c_stride, alpha, beta, tc, bs[4], bs[5]); yading@10: } yading@10: } yading@10: } yading@10: h->left_qp = h->qp; yading@10: h->top_qp[h->mbx] = h->qp; yading@10: } yading@10: yading@10: #undef SET_PARAMS yading@10: yading@10: /***************************************************************************** yading@10: * yading@10: * spatial intra prediction yading@10: * yading@10: ****************************************************************************/ yading@10: yading@10: void ff_cavs_load_intra_pred_luma(AVSContext *h, uint8_t *top, yading@10: uint8_t **left, int block) yading@10: { yading@10: int i; yading@10: yading@10: switch (block) { yading@10: case 0: yading@10: *left = h->left_border_y; yading@10: h->left_border_y[0] = h->left_border_y[1]; yading@10: memset(&h->left_border_y[17], h->left_border_y[16], 9); yading@10: memcpy(&top[1], &h->top_border_y[h->mbx * 16], 16); yading@10: top[17] = top[16]; yading@10: top[0] = top[1]; yading@10: if ((h->flags & A_AVAIL) && (h->flags & B_AVAIL)) yading@10: h->left_border_y[0] = top[0] = h->topleft_border_y; yading@10: break; yading@10: case 1: yading@10: *left = h->intern_border_y; yading@10: for (i = 0; i < 8; i++) yading@10: h->intern_border_y[i + 1] = *(h->cy + 7 + i * h->l_stride); yading@10: memset(&h->intern_border_y[9], h->intern_border_y[8], 9); yading@10: h->intern_border_y[0] = h->intern_border_y[1]; yading@10: memcpy(&top[1], &h->top_border_y[h->mbx * 16 + 8], 8); yading@10: if (h->flags & C_AVAIL) yading@10: memcpy(&top[9], &h->top_border_y[(h->mbx + 1) * 16], 8); yading@10: else yading@10: memset(&top[9], top[8], 9); yading@10: top[17] = top[16]; yading@10: top[0] = top[1]; yading@10: if (h->flags & B_AVAIL) yading@10: h->intern_border_y[0] = top[0] = h->top_border_y[h->mbx * 16 + 7]; yading@10: break; yading@10: case 2: yading@10: *left = &h->left_border_y[8]; yading@10: memcpy(&top[1], h->cy + 7 * h->l_stride, 16); yading@10: top[17] = top[16]; yading@10: top[0] = top[1]; yading@10: if (h->flags & A_AVAIL) yading@10: top[0] = h->left_border_y[8]; yading@10: break; yading@10: case 3: yading@10: *left = &h->intern_border_y[8]; yading@10: for (i = 0; i < 8; i++) yading@10: h->intern_border_y[i + 9] = *(h->cy + 7 + (i + 8) * h->l_stride); yading@10: memset(&h->intern_border_y[17], h->intern_border_y[16], 9); yading@10: memcpy(&top[0], h->cy + 7 + 7 * h->l_stride, 9); yading@10: memset(&top[9], top[8], 9); yading@10: break; yading@10: } yading@10: } yading@10: yading@10: void ff_cavs_load_intra_pred_chroma(AVSContext *h) yading@10: { yading@10: /* extend borders by one pixel */ yading@10: h->left_border_u[9] = h->left_border_u[8]; yading@10: h->left_border_v[9] = h->left_border_v[8]; yading@10: h->top_border_u[h->mbx * 10 + 9] = h->top_border_u[h->mbx * 10 + 8]; yading@10: h->top_border_v[h->mbx * 10 + 9] = h->top_border_v[h->mbx * 10 + 8]; yading@10: if (h->mbx && h->mby) { yading@10: h->top_border_u[h->mbx * 10] = h->left_border_u[0] = h->topleft_border_u; yading@10: h->top_border_v[h->mbx * 10] = h->left_border_v[0] = h->topleft_border_v; yading@10: } else { yading@10: h->left_border_u[0] = h->left_border_u[1]; yading@10: h->left_border_v[0] = h->left_border_v[1]; yading@10: h->top_border_u[h->mbx * 10] = h->top_border_u[h->mbx * 10 + 1]; yading@10: h->top_border_v[h->mbx * 10] = h->top_border_v[h->mbx * 10 + 1]; yading@10: } yading@10: } yading@10: yading@10: static void intra_pred_vert(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int y; yading@10: uint64_t a = AV_RN64(&top[1]); yading@10: for (y = 0; y < 8; y++) { yading@10: *((uint64_t *)(d + y * stride)) = a; yading@10: } yading@10: } yading@10: yading@10: static void intra_pred_horiz(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int y; yading@10: uint64_t a; yading@10: for (y = 0; y < 8; y++) { yading@10: a = left[y + 1] * 0x0101010101010101ULL; yading@10: *((uint64_t *)(d + y * stride)) = a; yading@10: } yading@10: } yading@10: yading@10: static void intra_pred_dc_128(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int y; yading@10: uint64_t a = 0x8080808080808080ULL; yading@10: for (y = 0; y < 8; y++) yading@10: *((uint64_t *)(d + y * stride)) = a; yading@10: } yading@10: yading@10: static void intra_pred_plane(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int x, y, ia; yading@10: int ih = 0; yading@10: int iv = 0; yading@10: const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; yading@10: yading@10: for (x = 0; x < 4; x++) { yading@10: ih += (x + 1) * (top [5 + x] - top [3 - x]); yading@10: iv += (x + 1) * (left[5 + x] - left[3 - x]); yading@10: } yading@10: ia = (top[8] + left[8]) << 4; yading@10: ih = (17 * ih + 16) >> 5; yading@10: iv = (17 * iv + 16) >> 5; yading@10: for (y = 0; y < 8; y++) yading@10: for (x = 0; x < 8; x++) yading@10: d[y * stride + x] = cm[(ia + (x - 3) * ih + (y - 3) * iv + 16) >> 5]; yading@10: } yading@10: yading@10: #define LOWPASS(ARRAY,INDEX) \ yading@10: ((ARRAY[(INDEX) - 1] + 2 * ARRAY[(INDEX)] + ARRAY[(INDEX) + 1] + 2) >> 2) yading@10: yading@10: static void intra_pred_lp(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int x, y; yading@10: for (y = 0; y < 8; y++) yading@10: for (x = 0; x < 8; x++) yading@10: d[y * stride + x] = (LOWPASS(top, x + 1) + LOWPASS(left, y + 1)) >> 1; yading@10: } yading@10: yading@10: static void intra_pred_down_left(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int x, y; yading@10: for (y = 0; y < 8; y++) yading@10: for (x = 0; x < 8; x++) yading@10: d[y * stride + x] = (LOWPASS(top, x + y + 2) + LOWPASS(left, x + y + 2)) >> 1; yading@10: } yading@10: yading@10: static void intra_pred_down_right(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int x, y; yading@10: for (y = 0; y < 8; y++) yading@10: for (x = 0; x < 8; x++) yading@10: if (x == y) yading@10: d[y * stride + x] = (left[1] + 2 * top[0] + top[1] + 2) >> 2; yading@10: else if (x > y) yading@10: d[y * stride + x] = LOWPASS(top, x - y); yading@10: else yading@10: d[y * stride + x] = LOWPASS(left, y - x); yading@10: } yading@10: yading@10: static void intra_pred_lp_left(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int x, y; yading@10: for (y = 0; y < 8; y++) yading@10: for (x = 0; x < 8; x++) yading@10: d[y * stride + x] = LOWPASS(left, y + 1); yading@10: } yading@10: yading@10: static void intra_pred_lp_top(uint8_t *d,uint8_t *top,uint8_t *left,int stride) yading@10: { yading@10: int x, y; yading@10: for (y = 0; y < 8; y++) yading@10: for (x = 0; x < 8; x++) yading@10: d[y * stride + x] = LOWPASS(top, x + 1); yading@10: } yading@10: yading@10: #undef LOWPASS yading@10: yading@10: static inline void modify_pred(const int8_t *mod_table, int *mode) yading@10: { yading@10: *mode = mod_table[*mode]; yading@10: if (*mode < 0) { yading@10: av_log(NULL, AV_LOG_ERROR, "Illegal intra prediction mode\n"); yading@10: *mode = 0; yading@10: } yading@10: } yading@10: yading@10: void ff_cavs_modify_mb_i(AVSContext *h, int *pred_mode_uv) yading@10: { yading@10: /* save pred modes before they get modified */ yading@10: h->pred_mode_Y[3] = h->pred_mode_Y[5]; yading@10: h->pred_mode_Y[6] = h->pred_mode_Y[8]; yading@10: h->top_pred_Y[h->mbx * 2 + 0] = h->pred_mode_Y[7]; yading@10: h->top_pred_Y[h->mbx * 2 + 1] = h->pred_mode_Y[8]; yading@10: yading@10: /* modify pred modes according to availability of neighbour samples */ yading@10: if (!(h->flags & A_AVAIL)) { yading@10: modify_pred(left_modifier_l, &h->pred_mode_Y[4]); yading@10: modify_pred(left_modifier_l, &h->pred_mode_Y[7]); yading@10: modify_pred(left_modifier_c, pred_mode_uv); yading@10: } yading@10: if (!(h->flags & B_AVAIL)) { yading@10: modify_pred(top_modifier_l, &h->pred_mode_Y[4]); yading@10: modify_pred(top_modifier_l, &h->pred_mode_Y[5]); yading@10: modify_pred(top_modifier_c, pred_mode_uv); yading@10: } yading@10: } yading@10: yading@10: /***************************************************************************** yading@10: * yading@10: * motion compensation yading@10: * yading@10: ****************************************************************************/ yading@10: yading@10: static inline void mc_dir_part(AVSContext *h, AVFrame *pic, yading@10: int chroma_height,int delta,int list,uint8_t *dest_y, yading@10: uint8_t *dest_cb,uint8_t *dest_cr,int src_x_offset, yading@10: int src_y_offset,qpel_mc_func *qpix_op, yading@10: h264_chroma_mc_func chroma_op,cavs_vector *mv) yading@10: { yading@10: const int mx= mv->x + src_x_offset*8; yading@10: const int my= mv->y + src_y_offset*8; yading@10: const int luma_xy= (mx&3) + ((my&3)<<2); yading@10: uint8_t * src_y = pic->data[0] + (mx >> 2) + (my >> 2) * h->l_stride; yading@10: uint8_t * src_cb = pic->data[1] + (mx >> 3) + (my >> 3) * h->c_stride; yading@10: uint8_t * src_cr = pic->data[2] + (mx >> 3) + (my >> 3) * h->c_stride; yading@10: int extra_width = 0; yading@10: int extra_height= extra_width; yading@10: int emu=0; yading@10: const int full_mx= mx>>2; yading@10: const int full_my= my>>2; yading@10: const int pic_width = 16*h->mb_width; yading@10: const int pic_height = 16*h->mb_height; yading@10: yading@10: if (!pic->data[0]) yading@10: return; yading@10: if(mx&7) extra_width -= 3; yading@10: if(my&7) extra_height -= 3; yading@10: yading@10: if( full_mx < 0-extra_width yading@10: || full_my < 0-extra_height yading@10: || full_mx + 16/*FIXME*/ > pic_width + extra_width yading@10: || full_my + 16/*FIXME*/ > pic_height + extra_height){ yading@10: h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_y - 2 - 2*h->l_stride, h->l_stride, yading@10: 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, pic_width, pic_height); yading@10: src_y= h->edge_emu_buffer + 2 + 2*h->l_stride; yading@10: emu=1; yading@10: } yading@10: yading@10: qpix_op[luma_xy](dest_y, src_y, h->l_stride); //FIXME try variable height perhaps? yading@10: yading@10: if(emu){ yading@10: h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cb, h->c_stride, yading@10: 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1); yading@10: src_cb= h->edge_emu_buffer; yading@10: } yading@10: chroma_op(dest_cb, src_cb, h->c_stride, chroma_height, mx&7, my&7); yading@10: yading@10: if(emu){ yading@10: h->vdsp.emulated_edge_mc(h->edge_emu_buffer, src_cr, h->c_stride, yading@10: 9, 9/*FIXME*/, (mx>>3), (my>>3), pic_width>>1, pic_height>>1); yading@10: src_cr= h->edge_emu_buffer; yading@10: } yading@10: chroma_op(dest_cr, src_cr, h->c_stride, chroma_height, mx&7, my&7); yading@10: } yading@10: yading@10: static inline void mc_part_std(AVSContext *h,int chroma_height,int delta, yading@10: uint8_t *dest_y,uint8_t *dest_cb,uint8_t *dest_cr, yading@10: int x_offset, int y_offset,qpel_mc_func *qpix_put, yading@10: h264_chroma_mc_func chroma_put,qpel_mc_func *qpix_avg, yading@10: h264_chroma_mc_func chroma_avg, cavs_vector *mv) yading@10: { yading@10: qpel_mc_func *qpix_op= qpix_put; yading@10: h264_chroma_mc_func chroma_op= chroma_put; yading@10: yading@10: dest_y += 2*x_offset + 2*y_offset*h->l_stride; yading@10: dest_cb += x_offset + y_offset*h->c_stride; yading@10: dest_cr += x_offset + y_offset*h->c_stride; yading@10: x_offset += 8*h->mbx; yading@10: y_offset += 8*h->mby; yading@10: yading@10: if(mv->ref >= 0){ yading@10: AVFrame *ref = h->DPB[mv->ref].f; yading@10: mc_dir_part(h, ref, chroma_height, delta, 0, yading@10: dest_y, dest_cb, dest_cr, x_offset, y_offset, yading@10: qpix_op, chroma_op, mv); yading@10: yading@10: qpix_op= qpix_avg; yading@10: chroma_op= chroma_avg; yading@10: } yading@10: yading@10: if((mv+MV_BWD_OFFS)->ref >= 0){ yading@10: AVFrame *ref = h->DPB[0].f; yading@10: mc_dir_part(h, ref, chroma_height, delta, 1, yading@10: dest_y, dest_cb, dest_cr, x_offset, y_offset, yading@10: qpix_op, chroma_op, mv+MV_BWD_OFFS); yading@10: } yading@10: } yading@10: yading@10: void ff_cavs_inter(AVSContext *h, enum cavs_mb mb_type) { yading@10: if(ff_cavs_partition_flags[mb_type] == 0){ // 16x16 yading@10: mc_part_std(h, 8, 0, h->cy, h->cu, h->cv, 0, 0, yading@10: h->cdsp.put_cavs_qpel_pixels_tab[0], yading@10: h->h264chroma.put_h264_chroma_pixels_tab[0], yading@10: h->cdsp.avg_cavs_qpel_pixels_tab[0], yading@10: h->h264chroma.avg_h264_chroma_pixels_tab[0], yading@10: &h->mv[MV_FWD_X0]); yading@10: }else{ yading@10: mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 0, 0, yading@10: h->cdsp.put_cavs_qpel_pixels_tab[1], yading@10: h->h264chroma.put_h264_chroma_pixels_tab[1], yading@10: h->cdsp.avg_cavs_qpel_pixels_tab[1], yading@10: h->h264chroma.avg_h264_chroma_pixels_tab[1], yading@10: &h->mv[MV_FWD_X0]); yading@10: mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 4, 0, yading@10: h->cdsp.put_cavs_qpel_pixels_tab[1], yading@10: h->h264chroma.put_h264_chroma_pixels_tab[1], yading@10: h->cdsp.avg_cavs_qpel_pixels_tab[1], yading@10: h->h264chroma.avg_h264_chroma_pixels_tab[1], yading@10: &h->mv[MV_FWD_X1]); yading@10: mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 0, 4, yading@10: h->cdsp.put_cavs_qpel_pixels_tab[1], yading@10: h->h264chroma.put_h264_chroma_pixels_tab[1], yading@10: h->cdsp.avg_cavs_qpel_pixels_tab[1], yading@10: h->h264chroma.avg_h264_chroma_pixels_tab[1], yading@10: &h->mv[MV_FWD_X2]); yading@10: mc_part_std(h, 4, 0, h->cy, h->cu, h->cv, 4, 4, yading@10: h->cdsp.put_cavs_qpel_pixels_tab[1], yading@10: h->h264chroma.put_h264_chroma_pixels_tab[1], yading@10: h->cdsp.avg_cavs_qpel_pixels_tab[1], yading@10: h->h264chroma.avg_h264_chroma_pixels_tab[1], yading@10: &h->mv[MV_FWD_X3]); yading@10: } yading@10: } yading@10: yading@10: /***************************************************************************** yading@10: * yading@10: * motion vector prediction yading@10: * yading@10: ****************************************************************************/ yading@10: yading@10: static inline void scale_mv(AVSContext *h, int *d_x, int *d_y, cavs_vector *src, int distp) { yading@10: int den = h->scale_den[src->ref]; yading@10: yading@10: *d_x = (src->x*distp*den + 256 + (src->x>>31)) >> 9; yading@10: *d_y = (src->y*distp*den + 256 + (src->y>>31)) >> 9; yading@10: } yading@10: yading@10: static inline void mv_pred_median(AVSContext *h, cavs_vector *mvP, yading@10: cavs_vector *mvA, cavs_vector *mvB, cavs_vector *mvC) { yading@10: int ax, ay, bx, by, cx, cy; yading@10: int len_ab, len_bc, len_ca, len_mid; yading@10: yading@10: /* scale candidates according to their temporal span */ yading@10: scale_mv(h, &ax, &ay, mvA, mvP->dist); yading@10: scale_mv(h, &bx, &by, mvB, mvP->dist); yading@10: scale_mv(h, &cx, &cy, mvC, mvP->dist); yading@10: /* find the geometrical median of the three candidates */ yading@10: len_ab = abs(ax - bx) + abs(ay - by); yading@10: len_bc = abs(bx - cx) + abs(by - cy); yading@10: len_ca = abs(cx - ax) + abs(cy - ay); yading@10: len_mid = mid_pred(len_ab, len_bc, len_ca); yading@10: if(len_mid == len_ab) { yading@10: mvP->x = cx; yading@10: mvP->y = cy; yading@10: } else if(len_mid == len_bc) { yading@10: mvP->x = ax; yading@10: mvP->y = ay; yading@10: } else { yading@10: mvP->x = bx; yading@10: mvP->y = by; yading@10: } yading@10: } yading@10: yading@10: void ff_cavs_mv(AVSContext *h, enum cavs_mv_loc nP, enum cavs_mv_loc nC, yading@10: enum cavs_mv_pred mode, enum cavs_block size, int ref) { yading@10: cavs_vector *mvP = &h->mv[nP]; yading@10: cavs_vector *mvA = &h->mv[nP-1]; yading@10: cavs_vector *mvB = &h->mv[nP-4]; yading@10: cavs_vector *mvC = &h->mv[nC]; yading@10: const cavs_vector *mvP2 = NULL; yading@10: yading@10: mvP->ref = ref; yading@10: mvP->dist = h->dist[mvP->ref]; yading@10: if(mvC->ref == NOT_AVAIL) yading@10: mvC = &h->mv[nP-5]; // set to top-left (mvD) yading@10: if((mode == MV_PRED_PSKIP) && yading@10: ((mvA->ref == NOT_AVAIL) || (mvB->ref == NOT_AVAIL) || yading@10: ((mvA->x | mvA->y | mvA->ref) == 0) || yading@10: ((mvB->x | mvB->y | mvB->ref) == 0) )) { yading@10: mvP2 = &un_mv; yading@10: /* if there is only one suitable candidate, take it */ yading@10: } else if((mvA->ref >= 0) && (mvB->ref < 0) && (mvC->ref < 0)) { yading@10: mvP2= mvA; yading@10: } else if((mvA->ref < 0) && (mvB->ref >= 0) && (mvC->ref < 0)) { yading@10: mvP2= mvB; yading@10: } else if((mvA->ref < 0) && (mvB->ref < 0) && (mvC->ref >= 0)) { yading@10: mvP2= mvC; yading@10: } else if(mode == MV_PRED_LEFT && mvA->ref == ref){ yading@10: mvP2= mvA; yading@10: } else if(mode == MV_PRED_TOP && mvB->ref == ref){ yading@10: mvP2= mvB; yading@10: } else if(mode == MV_PRED_TOPRIGHT && mvC->ref == ref){ yading@10: mvP2= mvC; yading@10: } yading@10: if(mvP2){ yading@10: mvP->x = mvP2->x; yading@10: mvP->y = mvP2->y; yading@10: }else yading@10: mv_pred_median(h, mvP, mvA, mvB, mvC); yading@10: yading@10: if(mode < MV_PRED_PSKIP) { yading@10: mvP->x += get_se_golomb(&h->gb); yading@10: mvP->y += get_se_golomb(&h->gb); yading@10: } yading@10: set_mvs(mvP,size); yading@10: } yading@10: yading@10: /***************************************************************************** yading@10: * yading@10: * macroblock level yading@10: * yading@10: ****************************************************************************/ yading@10: yading@10: /** yading@10: * initialise predictors for motion vectors and intra prediction yading@10: */ yading@10: void ff_cavs_init_mb(AVSContext *h) { yading@10: int i; yading@10: yading@10: /* copy predictors from top line (MB B and C) into cache */ yading@10: for(i=0;i<3;i++) { yading@10: h->mv[MV_FWD_B2+i] = h->top_mv[0][h->mbx*2+i]; yading@10: h->mv[MV_BWD_B2+i] = h->top_mv[1][h->mbx*2+i]; yading@10: } yading@10: h->pred_mode_Y[1] = h->top_pred_Y[h->mbx*2+0]; yading@10: h->pred_mode_Y[2] = h->top_pred_Y[h->mbx*2+1]; yading@10: /* clear top predictors if MB B is not available */ yading@10: if(!(h->flags & B_AVAIL)) { yading@10: h->mv[MV_FWD_B2] = un_mv; yading@10: h->mv[MV_FWD_B3] = un_mv; yading@10: h->mv[MV_BWD_B2] = un_mv; yading@10: h->mv[MV_BWD_B3] = un_mv; yading@10: h->pred_mode_Y[1] = h->pred_mode_Y[2] = NOT_AVAIL; yading@10: h->flags &= ~(C_AVAIL|D_AVAIL); yading@10: } else if(h->mbx) { yading@10: h->flags |= D_AVAIL; yading@10: } yading@10: if(h->mbx == h->mb_width-1) //MB C not available yading@10: h->flags &= ~C_AVAIL; yading@10: /* clear top-right predictors if MB C is not available */ yading@10: if(!(h->flags & C_AVAIL)) { yading@10: h->mv[MV_FWD_C2] = un_mv; yading@10: h->mv[MV_BWD_C2] = un_mv; yading@10: } yading@10: /* clear top-left predictors if MB D is not available */ yading@10: if(!(h->flags & D_AVAIL)) { yading@10: h->mv[MV_FWD_D3] = un_mv; yading@10: h->mv[MV_BWD_D3] = un_mv; yading@10: } yading@10: } yading@10: yading@10: /** yading@10: * save predictors for later macroblocks and increase yading@10: * macroblock address yading@10: * @return 0 if end of frame is reached, 1 otherwise yading@10: */ yading@10: int ff_cavs_next_mb(AVSContext *h) { yading@10: int i; yading@10: yading@10: h->flags |= A_AVAIL; yading@10: h->cy += 16; yading@10: h->cu += 8; yading@10: h->cv += 8; yading@10: /* copy mvs as predictors to the left */ yading@10: for(i=0;i<=20;i+=4) yading@10: h->mv[i] = h->mv[i+2]; yading@10: /* copy bottom mvs from cache to top line */ yading@10: h->top_mv[0][h->mbx*2+0] = h->mv[MV_FWD_X2]; yading@10: h->top_mv[0][h->mbx*2+1] = h->mv[MV_FWD_X3]; yading@10: h->top_mv[1][h->mbx*2+0] = h->mv[MV_BWD_X2]; yading@10: h->top_mv[1][h->mbx*2+1] = h->mv[MV_BWD_X3]; yading@10: /* next MB address */ yading@10: h->mbidx++; yading@10: h->mbx++; yading@10: if(h->mbx == h->mb_width) { //new mb line yading@10: h->flags = B_AVAIL|C_AVAIL; yading@10: /* clear left pred_modes */ yading@10: h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL; yading@10: /* clear left mv predictors */ yading@10: for(i=0;i<=20;i+=4) yading@10: h->mv[i] = un_mv; yading@10: h->mbx = 0; yading@10: h->mby++; yading@10: /* re-calculate sample pointers */ yading@10: h->cy = h->cur.f->data[0] + h->mby * 16 * h->l_stride; yading@10: h->cu = h->cur.f->data[1] + h->mby * 8 * h->c_stride; yading@10: h->cv = h->cur.f->data[2] + h->mby * 8 * h->c_stride; yading@10: if(h->mby == h->mb_height) { //frame end yading@10: return 0; yading@10: } yading@10: } yading@10: return 1; yading@10: } yading@10: yading@10: /***************************************************************************** yading@10: * yading@10: * frame level yading@10: * yading@10: ****************************************************************************/ yading@10: yading@10: int ff_cavs_init_pic(AVSContext *h) { yading@10: int i; yading@10: yading@10: /* clear some predictors */ yading@10: for(i=0;i<=20;i+=4) yading@10: h->mv[i] = un_mv; yading@10: h->mv[MV_BWD_X0] = ff_cavs_dir_mv; yading@10: set_mvs(&h->mv[MV_BWD_X0], BLK_16X16); yading@10: h->mv[MV_FWD_X0] = ff_cavs_dir_mv; yading@10: set_mvs(&h->mv[MV_FWD_X0], BLK_16X16); yading@10: h->pred_mode_Y[3] = h->pred_mode_Y[6] = NOT_AVAIL; yading@10: h->cy = h->cur.f->data[0]; yading@10: h->cu = h->cur.f->data[1]; yading@10: h->cv = h->cur.f->data[2]; yading@10: h->l_stride = h->cur.f->linesize[0]; yading@10: h->c_stride = h->cur.f->linesize[1]; yading@10: h->luma_scan[2] = 8*h->l_stride; yading@10: h->luma_scan[3] = 8*h->l_stride+8; yading@10: h->mbx = h->mby = h->mbidx = 0; yading@10: h->flags = 0; yading@10: yading@10: return 0; yading@10: } yading@10: yading@10: /***************************************************************************** yading@10: * yading@10: * headers and interface yading@10: * yading@10: ****************************************************************************/ yading@10: yading@10: /** yading@10: * some predictions require data from the top-neighbouring macroblock. yading@10: * this data has to be stored for one complete row of macroblocks yading@10: * and this storage space is allocated here yading@10: */ yading@10: void ff_cavs_init_top_lines(AVSContext *h) { yading@10: /* alloc top line of predictors */ yading@10: h->top_qp = av_mallocz( h->mb_width); yading@10: h->top_mv[0] = av_mallocz((h->mb_width*2+1)*sizeof(cavs_vector)); yading@10: h->top_mv[1] = av_mallocz((h->mb_width*2+1)*sizeof(cavs_vector)); yading@10: h->top_pred_Y = av_mallocz( h->mb_width*2*sizeof(*h->top_pred_Y)); yading@10: h->top_border_y = av_mallocz((h->mb_width+1)*16); yading@10: h->top_border_u = av_mallocz( h->mb_width * 10); yading@10: h->top_border_v = av_mallocz( h->mb_width * 10); yading@10: yading@10: /* alloc space for co-located MVs and types */ yading@10: h->col_mv = av_mallocz( h->mb_width*h->mb_height*4*sizeof(cavs_vector)); yading@10: h->col_type_base = av_mallocz(h->mb_width*h->mb_height); yading@10: h->block = av_mallocz(64*sizeof(int16_t)); yading@10: } yading@10: yading@10: av_cold int ff_cavs_init(AVCodecContext *avctx) { yading@10: AVSContext *h = avctx->priv_data; yading@10: yading@10: ff_dsputil_init(&h->dsp, avctx); yading@10: ff_h264chroma_init(&h->h264chroma, 8); yading@10: ff_videodsp_init(&h->vdsp, 8); yading@10: ff_cavsdsp_init(&h->cdsp, avctx); yading@10: ff_init_scantable_permutation(h->dsp.idct_permutation, yading@10: h->cdsp.idct_perm); yading@10: ff_init_scantable(h->dsp.idct_permutation, &h->scantable, ff_zigzag_direct); yading@10: yading@10: h->avctx = avctx; yading@10: avctx->pix_fmt= AV_PIX_FMT_YUV420P; yading@10: yading@10: h->cur.f = av_frame_alloc(); yading@10: h->DPB[0].f = av_frame_alloc(); yading@10: h->DPB[1].f = av_frame_alloc(); yading@10: if (!h->cur.f || !h->DPB[0].f || !h->DPB[1].f) { yading@10: ff_cavs_end(avctx); yading@10: return AVERROR(ENOMEM); yading@10: } yading@10: yading@10: h->luma_scan[0] = 0; yading@10: h->luma_scan[1] = 8; yading@10: h->intra_pred_l[ INTRA_L_VERT] = intra_pred_vert; yading@10: h->intra_pred_l[ INTRA_L_HORIZ] = intra_pred_horiz; yading@10: h->intra_pred_l[ INTRA_L_LP] = intra_pred_lp; yading@10: h->intra_pred_l[ INTRA_L_DOWN_LEFT] = intra_pred_down_left; yading@10: h->intra_pred_l[INTRA_L_DOWN_RIGHT] = intra_pred_down_right; yading@10: h->intra_pred_l[ INTRA_L_LP_LEFT] = intra_pred_lp_left; yading@10: h->intra_pred_l[ INTRA_L_LP_TOP] = intra_pred_lp_top; yading@10: h->intra_pred_l[ INTRA_L_DC_128] = intra_pred_dc_128; yading@10: h->intra_pred_c[ INTRA_C_LP] = intra_pred_lp; yading@10: h->intra_pred_c[ INTRA_C_HORIZ] = intra_pred_horiz; yading@10: h->intra_pred_c[ INTRA_C_VERT] = intra_pred_vert; yading@10: h->intra_pred_c[ INTRA_C_PLANE] = intra_pred_plane; yading@10: h->intra_pred_c[ INTRA_C_LP_LEFT] = intra_pred_lp_left; yading@10: h->intra_pred_c[ INTRA_C_LP_TOP] = intra_pred_lp_top; yading@10: h->intra_pred_c[ INTRA_C_DC_128] = intra_pred_dc_128; yading@10: h->mv[ 7] = un_mv; yading@10: h->mv[19] = un_mv; yading@10: return 0; yading@10: } yading@10: yading@10: av_cold int ff_cavs_end(AVCodecContext *avctx) { yading@10: AVSContext *h = avctx->priv_data; yading@10: yading@10: av_frame_free(&h->cur.f); yading@10: av_frame_free(&h->DPB[0].f); yading@10: av_frame_free(&h->DPB[1].f); yading@10: yading@10: av_free(h->top_qp); yading@10: av_free(h->top_mv[0]); yading@10: av_free(h->top_mv[1]); yading@10: av_free(h->top_pred_Y); yading@10: av_free(h->top_border_y); yading@10: av_free(h->top_border_u); yading@10: av_free(h->top_border_v); yading@10: av_free(h->col_mv); yading@10: av_free(h->col_type_base); yading@10: av_free(h->block); yading@10: av_freep(&h->edge_emu_buffer); yading@10: return 0; yading@10: }