diff options
| author | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
|---|---|---|
| committer | Tim Redfern <tim@eclectronics.org> | 2014-02-17 13:36:38 +0000 |
| commit | 22e28216336da876e1fd17f380ce42eaf1446769 (patch) | |
| tree | 444dad3dc7e2656992d29f34f7bce31970c122a5 /ffmpeg/libavcodec/rv40.c | |
| parent | ae5e8541f6e06e64c28719467cdf366ac57aff31 (diff) | |
chasing indexing error
Diffstat (limited to 'ffmpeg/libavcodec/rv40.c')
| -rw-r--r-- | ffmpeg/libavcodec/rv40.c | 581 |
1 files changed, 0 insertions, 581 deletions
diff --git a/ffmpeg/libavcodec/rv40.c b/ffmpeg/libavcodec/rv40.c deleted file mode 100644 index 17a2f91..0000000 --- a/ffmpeg/libavcodec/rv40.c +++ /dev/null @@ -1,581 +0,0 @@ -/* - * RV40 decoder - * Copyright (c) 2007 Konstantin Shishkov - * - * This file is part of FFmpeg. - * - * FFmpeg 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 2.1 of the License, or (at your option) any later version. - * - * FFmpeg 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 FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/** - * @file - * RV40 decoder - */ - -#include "libavutil/imgutils.h" - -#include "avcodec.h" -#include "mpegvideo.h" -#include "golomb.h" - -#include "rv34.h" -#include "rv40vlc2.h" -#include "rv40data.h" - -static VLC aic_top_vlc; -static VLC aic_mode1_vlc[AIC_MODE1_NUM], aic_mode2_vlc[AIC_MODE2_NUM]; -static VLC ptype_vlc[NUM_PTYPE_VLCS], btype_vlc[NUM_BTYPE_VLCS]; - -static const int16_t mode2_offs[] = { - 0, 614, 1222, 1794, 2410, 3014, 3586, 4202, 4792, 5382, 5966, 6542, - 7138, 7716, 8292, 8864, 9444, 10030, 10642, 11212, 11814 -}; - -/** - * Initialize all tables. - */ -static av_cold void rv40_init_tables(void) -{ - int i; - static VLC_TYPE aic_table[1 << AIC_TOP_BITS][2]; - static VLC_TYPE aic_mode1_table[AIC_MODE1_NUM << AIC_MODE1_BITS][2]; - static VLC_TYPE aic_mode2_table[11814][2]; - static VLC_TYPE ptype_table[NUM_PTYPE_VLCS << PTYPE_VLC_BITS][2]; - static VLC_TYPE btype_table[NUM_BTYPE_VLCS << BTYPE_VLC_BITS][2]; - - aic_top_vlc.table = aic_table; - aic_top_vlc.table_allocated = 1 << AIC_TOP_BITS; - init_vlc(&aic_top_vlc, AIC_TOP_BITS, AIC_TOP_SIZE, - rv40_aic_top_vlc_bits, 1, 1, - rv40_aic_top_vlc_codes, 1, 1, INIT_VLC_USE_NEW_STATIC); - for(i = 0; i < AIC_MODE1_NUM; i++){ - // Every tenth VLC table is empty - if((i % 10) == 9) continue; - aic_mode1_vlc[i].table = &aic_mode1_table[i << AIC_MODE1_BITS]; - aic_mode1_vlc[i].table_allocated = 1 << AIC_MODE1_BITS; - init_vlc(&aic_mode1_vlc[i], AIC_MODE1_BITS, AIC_MODE1_SIZE, - aic_mode1_vlc_bits[i], 1, 1, - aic_mode1_vlc_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC); - } - for(i = 0; i < AIC_MODE2_NUM; i++){ - aic_mode2_vlc[i].table = &aic_mode2_table[mode2_offs[i]]; - aic_mode2_vlc[i].table_allocated = mode2_offs[i + 1] - mode2_offs[i]; - init_vlc(&aic_mode2_vlc[i], AIC_MODE2_BITS, AIC_MODE2_SIZE, - aic_mode2_vlc_bits[i], 1, 1, - aic_mode2_vlc_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC); - } - for(i = 0; i < NUM_PTYPE_VLCS; i++){ - ptype_vlc[i].table = &ptype_table[i << PTYPE_VLC_BITS]; - ptype_vlc[i].table_allocated = 1 << PTYPE_VLC_BITS; - ff_init_vlc_sparse(&ptype_vlc[i], PTYPE_VLC_BITS, PTYPE_VLC_SIZE, - ptype_vlc_bits[i], 1, 1, - ptype_vlc_codes[i], 1, 1, - ptype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC); - } - for(i = 0; i < NUM_BTYPE_VLCS; i++){ - btype_vlc[i].table = &btype_table[i << BTYPE_VLC_BITS]; - btype_vlc[i].table_allocated = 1 << BTYPE_VLC_BITS; - ff_init_vlc_sparse(&btype_vlc[i], BTYPE_VLC_BITS, BTYPE_VLC_SIZE, - btype_vlc_bits[i], 1, 1, - btype_vlc_codes[i], 1, 1, - btype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC); - } -} - -/** - * Get stored dimension from bitstream. - * - * If the width/height is the standard one then it's coded as a 3-bit index. - * Otherwise it is coded as escaped 8-bit portions. - */ -static int get_dimension(GetBitContext *gb, const int *dim) -{ - int t = get_bits(gb, 3); - int val = dim[t]; - if(val < 0) - val = dim[get_bits1(gb) - val]; - if(!val){ - do{ - t = get_bits(gb, 8); - val += t << 2; - }while(t == 0xFF); - } - return val; -} - -/** - * Get encoded picture size - usually this is called from rv40_parse_slice_header. - */ -static void rv40_parse_picture_size(GetBitContext *gb, int *w, int *h) -{ - *w = get_dimension(gb, rv40_standard_widths); - *h = get_dimension(gb, rv40_standard_heights); -} - -static int rv40_parse_slice_header(RV34DecContext *r, GetBitContext *gb, SliceInfo *si) -{ - int mb_bits; - int w = r->s.width, h = r->s.height; - int mb_size; - - memset(si, 0, sizeof(SliceInfo)); - if(get_bits1(gb)) - return -1; - si->type = get_bits(gb, 2); - if(si->type == 1) si->type = 0; - si->quant = get_bits(gb, 5); - if(get_bits(gb, 2)) - return -1; - si->vlc_set = get_bits(gb, 2); - skip_bits1(gb); - si->pts = get_bits(gb, 13); - if(!si->type || !get_bits1(gb)) - rv40_parse_picture_size(gb, &w, &h); - if(av_image_check_size(w, h, 0, r->s.avctx) < 0) - return -1; - si->width = w; - si->height = h; - mb_size = ((w + 15) >> 4) * ((h + 15) >> 4); - mb_bits = ff_rv34_get_start_offset(gb, mb_size); - si->start = get_bits(gb, mb_bits); - - return 0; -} - -/** - * Decode 4x4 intra types array. - */ -static int rv40_decode_intra_types(RV34DecContext *r, GetBitContext *gb, int8_t *dst) -{ - MpegEncContext *s = &r->s; - int i, j, k, v; - int A, B, C; - int pattern; - int8_t *ptr; - - for(i = 0; i < 4; i++, dst += r->intra_types_stride){ - if(!i && s->first_slice_line){ - pattern = get_vlc2(gb, aic_top_vlc.table, AIC_TOP_BITS, 1); - dst[0] = (pattern >> 2) & 2; - dst[1] = (pattern >> 1) & 2; - dst[2] = pattern & 2; - dst[3] = (pattern << 1) & 2; - continue; - } - ptr = dst; - for(j = 0; j < 4; j++){ - /* Coefficients are read using VLC chosen by the prediction pattern - * The first one (used for retrieving a pair of coefficients) is - * constructed from the top, top right and left coefficients - * The second one (used for retrieving only one coefficient) is - * top + 10 * left. - */ - A = ptr[-r->intra_types_stride + 1]; // it won't be used for the last coefficient in a row - B = ptr[-r->intra_types_stride]; - C = ptr[-1]; - pattern = A + (B << 4) + (C << 8); - for(k = 0; k < MODE2_PATTERNS_NUM; k++) - if(pattern == rv40_aic_table_index[k]) - break; - if(j < 3 && k < MODE2_PATTERNS_NUM){ //pattern is found, decoding 2 coefficients - v = get_vlc2(gb, aic_mode2_vlc[k].table, AIC_MODE2_BITS, 2); - *ptr++ = v/9; - *ptr++ = v%9; - j++; - }else{ - if(B != -1 && C != -1) - v = get_vlc2(gb, aic_mode1_vlc[B + C*10].table, AIC_MODE1_BITS, 1); - else{ // tricky decoding - v = 0; - switch(C){ - case -1: // code 0 -> 1, 1 -> 0 - if(B < 2) - v = get_bits1(gb) ^ 1; - break; - case 0: - case 2: // code 0 -> 2, 1 -> 0 - v = (get_bits1(gb) ^ 1) << 1; - break; - } - } - *ptr++ = v; - } - } - } - return 0; -} - -/** - * Decode macroblock information. - */ -static int rv40_decode_mb_info(RV34DecContext *r) -{ - MpegEncContext *s = &r->s; - GetBitContext *gb = &s->gb; - int q, i; - int prev_type = 0; - int mb_pos = s->mb_x + s->mb_y * s->mb_stride; - - if(!r->s.mb_skip_run) { - r->s.mb_skip_run = svq3_get_ue_golomb(gb) + 1; - if(r->s.mb_skip_run > (unsigned)s->mb_num) - return -1; - } - - if(--r->s.mb_skip_run) - return RV34_MB_SKIP; - - if(r->avail_cache[6-4]){ - int blocks[RV34_MB_TYPES] = {0}; - int count = 0; - if(r->avail_cache[6-1]) - blocks[r->mb_type[mb_pos - 1]]++; - blocks[r->mb_type[mb_pos - s->mb_stride]]++; - if(r->avail_cache[6-2]) - blocks[r->mb_type[mb_pos - s->mb_stride + 1]]++; - if(r->avail_cache[6-5]) - blocks[r->mb_type[mb_pos - s->mb_stride - 1]]++; - for(i = 0; i < RV34_MB_TYPES; i++){ - if(blocks[i] > count){ - count = blocks[i]; - prev_type = i; - if(count>1) - break; - } - } - } else if (r->avail_cache[6-1]) - prev_type = r->mb_type[mb_pos - 1]; - - if(s->pict_type == AV_PICTURE_TYPE_P){ - prev_type = block_num_to_ptype_vlc_num[prev_type]; - q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1); - if(q < PBTYPE_ESCAPE) - return q; - q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1); - av_log(s->avctx, AV_LOG_ERROR, "Dquant for P-frame\n"); - }else{ - prev_type = block_num_to_btype_vlc_num[prev_type]; - q = get_vlc2(gb, btype_vlc[prev_type].table, BTYPE_VLC_BITS, 1); - if(q < PBTYPE_ESCAPE) - return q; - q = get_vlc2(gb, btype_vlc[prev_type].table, BTYPE_VLC_BITS, 1); - av_log(s->avctx, AV_LOG_ERROR, "Dquant for B-frame\n"); - } - return 0; -} - -enum RV40BlockPos{ - POS_CUR, - POS_TOP, - POS_LEFT, - POS_BOTTOM, -}; - -#define MASK_CUR 0x0001 -#define MASK_RIGHT 0x0008 -#define MASK_BOTTOM 0x0010 -#define MASK_TOP 0x1000 -#define MASK_Y_TOP_ROW 0x000F -#define MASK_Y_LAST_ROW 0xF000 -#define MASK_Y_LEFT_COL 0x1111 -#define MASK_Y_RIGHT_COL 0x8888 -#define MASK_C_TOP_ROW 0x0003 -#define MASK_C_LAST_ROW 0x000C -#define MASK_C_LEFT_COL 0x0005 -#define MASK_C_RIGHT_COL 0x000A - -static const int neighbour_offs_x[4] = { 0, 0, -1, 0 }; -static const int neighbour_offs_y[4] = { 0, -1, 0, 1 }; - -static void rv40_adaptive_loop_filter(RV34DSPContext *rdsp, - uint8_t *src, int stride, int dmode, - int lim_q1, int lim_p1, - int alpha, int beta, int beta2, - int chroma, int edge, int dir) -{ - int filter_p1, filter_q1; - int strong; - int lims; - - strong = rdsp->rv40_loop_filter_strength[dir](src, stride, beta, beta2, - edge, &filter_p1, &filter_q1); - - lims = filter_p1 + filter_q1 + ((lim_q1 + lim_p1) >> 1) + 1; - - if (strong) { - rdsp->rv40_strong_loop_filter[dir](src, stride, alpha, - lims, dmode, chroma); - } else if (filter_p1 & filter_q1) { - rdsp->rv40_weak_loop_filter[dir](src, stride, 1, 1, alpha, beta, - lims, lim_q1, lim_p1); - } else if (filter_p1 | filter_q1) { - rdsp->rv40_weak_loop_filter[dir](src, stride, filter_p1, filter_q1, - alpha, beta, lims >> 1, lim_q1 >> 1, - lim_p1 >> 1); - } -} - -/** - * RV40 loop filtering function - */ -static void rv40_loop_filter(RV34DecContext *r, int row) -{ - MpegEncContext *s = &r->s; - int mb_pos, mb_x; - int i, j, k; - uint8_t *Y, *C; - int alpha, beta, betaY, betaC; - int q; - int mbtype[4]; ///< current macroblock and its neighbours types - /** - * flags indicating that macroblock can be filtered with strong filter - * it is set only for intra coded MB and MB with DCs coded separately - */ - int mb_strong[4]; - int clip[4]; ///< MB filter clipping value calculated from filtering strength - /** - * coded block patterns for luma part of current macroblock and its neighbours - * Format: - * LSB corresponds to the top left block, - * each nibble represents one row of subblocks. - */ - int cbp[4]; - /** - * coded block patterns for chroma part of current macroblock and its neighbours - * Format is the same as for luma with two subblocks in a row. - */ - int uvcbp[4][2]; - /** - * This mask represents the pattern of luma subblocks that should be filtered - * in addition to the coded ones because they lie at the edge of - * 8x8 block with different enough motion vectors - */ - unsigned mvmasks[4]; - - mb_pos = row * s->mb_stride; - for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){ - int mbtype = s->current_picture_ptr->mb_type[mb_pos]; - if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype)) - r->cbp_luma [mb_pos] = r->deblock_coefs[mb_pos] = 0xFFFF; - if(IS_INTRA(mbtype)) - r->cbp_chroma[mb_pos] = 0xFF; - } - mb_pos = row * s->mb_stride; - for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){ - int y_h_deblock, y_v_deblock; - int c_v_deblock[2], c_h_deblock[2]; - int clip_left; - int avail[4]; - unsigned y_to_deblock; - int c_to_deblock[2]; - - q = s->current_picture_ptr->qscale_table[mb_pos]; - alpha = rv40_alpha_tab[q]; - beta = rv40_beta_tab [q]; - betaY = betaC = beta * 3; - if(s->width * s->height <= 176*144) - betaY += beta; - - avail[0] = 1; - avail[1] = row; - avail[2] = mb_x; - avail[3] = row < s->mb_height - 1; - for(i = 0; i < 4; i++){ - if(avail[i]){ - int pos = mb_pos + neighbour_offs_x[i] + neighbour_offs_y[i]*s->mb_stride; - mvmasks[i] = r->deblock_coefs[pos]; - mbtype [i] = s->current_picture_ptr->mb_type[pos]; - cbp [i] = r->cbp_luma[pos]; - uvcbp[i][0] = r->cbp_chroma[pos] & 0xF; - uvcbp[i][1] = r->cbp_chroma[pos] >> 4; - }else{ - mvmasks[i] = 0; - mbtype [i] = mbtype[0]; - cbp [i] = 0; - uvcbp[i][0] = uvcbp[i][1] = 0; - } - mb_strong[i] = IS_INTRA(mbtype[i]) || IS_SEPARATE_DC(mbtype[i]); - clip[i] = rv40_filter_clip_tbl[mb_strong[i] + 1][q]; - } - y_to_deblock = mvmasks[POS_CUR] - | (mvmasks[POS_BOTTOM] << 16); - /* This pattern contains bits signalling that horizontal edges of - * the current block can be filtered. - * That happens when either of adjacent subblocks is coded or lies on - * the edge of 8x8 blocks with motion vectors differing by more than - * 3/4 pel in any component (any edge orientation for some reason). - */ - y_h_deblock = y_to_deblock - | ((cbp[POS_CUR] << 4) & ~MASK_Y_TOP_ROW) - | ((cbp[POS_TOP] & MASK_Y_LAST_ROW) >> 12); - /* This pattern contains bits signalling that vertical edges of - * the current block can be filtered. - * That happens when either of adjacent subblocks is coded or lies on - * the edge of 8x8 blocks with motion vectors differing by more than - * 3/4 pel in any component (any edge orientation for some reason). - */ - y_v_deblock = y_to_deblock - | ((cbp[POS_CUR] << 1) & ~MASK_Y_LEFT_COL) - | ((cbp[POS_LEFT] & MASK_Y_RIGHT_COL) >> 3); - if(!mb_x) - y_v_deblock &= ~MASK_Y_LEFT_COL; - if(!row) - y_h_deblock &= ~MASK_Y_TOP_ROW; - if(row == s->mb_height - 1 || (mb_strong[POS_CUR] | mb_strong[POS_BOTTOM])) - y_h_deblock &= ~(MASK_Y_TOP_ROW << 16); - /* Calculating chroma patterns is similar and easier since there is - * no motion vector pattern for them. - */ - for(i = 0; i < 2; i++){ - c_to_deblock[i] = (uvcbp[POS_BOTTOM][i] << 4) | uvcbp[POS_CUR][i]; - c_v_deblock[i] = c_to_deblock[i] - | ((uvcbp[POS_CUR] [i] << 1) & ~MASK_C_LEFT_COL) - | ((uvcbp[POS_LEFT][i] & MASK_C_RIGHT_COL) >> 1); - c_h_deblock[i] = c_to_deblock[i] - | ((uvcbp[POS_TOP][i] & MASK_C_LAST_ROW) >> 2) - | (uvcbp[POS_CUR][i] << 2); - if(!mb_x) - c_v_deblock[i] &= ~MASK_C_LEFT_COL; - if(!row) - c_h_deblock[i] &= ~MASK_C_TOP_ROW; - if(row == s->mb_height - 1 || (mb_strong[POS_CUR] | mb_strong[POS_BOTTOM])) - c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4); - } - - for(j = 0; j < 16; j += 4){ - Y = s->current_picture_ptr->f.data[0] + mb_x*16 + (row*16 + j) * s->linesize; - for(i = 0; i < 4; i++, Y += 4){ - int ij = i + j; - int clip_cur = y_to_deblock & (MASK_CUR << ij) ? clip[POS_CUR] : 0; - int dither = j ? ij : i*4; - - // if bottom block is coded then we can filter its top edge - // (or bottom edge of this block, which is the same) - if(y_h_deblock & (MASK_BOTTOM << ij)){ - rv40_adaptive_loop_filter(&r->rdsp, Y+4*s->linesize, - s->linesize, dither, - y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0, - clip_cur, alpha, beta, betaY, - 0, 0, 0); - } - // filter left block edge in ordinary mode (with low filtering strength) - if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] | mb_strong[POS_LEFT]))){ - if(!i) - clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0; - else - clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0; - rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither, - clip_cur, - clip_left, - alpha, beta, betaY, 0, 0, 1); - } - // filter top edge of the current macroblock when filtering strength is high - if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] | mb_strong[POS_TOP])){ - rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither, - clip_cur, - mvmasks[POS_TOP] & (MASK_TOP << i) ? clip[POS_TOP] : 0, - alpha, beta, betaY, 0, 1, 0); - } - // filter left block edge in edge mode (with high filtering strength) - if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] | mb_strong[POS_LEFT])){ - clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0; - rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither, - clip_cur, - clip_left, - alpha, beta, betaY, 0, 1, 1); - } - } - } - for(k = 0; k < 2; k++){ - for(j = 0; j < 2; j++){ - C = s->current_picture_ptr->f.data[k + 1] + mb_x*8 + (row*8 + j*4) * s->uvlinesize; - for(i = 0; i < 2; i++, C += 4){ - int ij = i + j*2; - int clip_cur = c_to_deblock[k] & (MASK_CUR << ij) ? clip[POS_CUR] : 0; - if(c_h_deblock[k] & (MASK_CUR << (ij+2))){ - int clip_bot = c_to_deblock[k] & (MASK_CUR << (ij+2)) ? clip[POS_CUR] : 0; - rv40_adaptive_loop_filter(&r->rdsp, C+4*s->uvlinesize, s->uvlinesize, i*8, - clip_bot, - clip_cur, - alpha, beta, betaC, 1, 0, 0); - } - if((c_v_deblock[k] & (MASK_CUR << ij)) && (i || !(mb_strong[POS_CUR] | mb_strong[POS_LEFT]))){ - if(!i) - clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0; - else - clip_left = c_to_deblock[k] & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0; - rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8, - clip_cur, - clip_left, - alpha, beta, betaC, 1, 0, 1); - } - if(!j && c_h_deblock[k] & (MASK_CUR << ij) && (mb_strong[POS_CUR] | mb_strong[POS_TOP])){ - int clip_top = uvcbp[POS_TOP][k] & (MASK_CUR << (ij+2)) ? clip[POS_TOP] : 0; - rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, i*8, - clip_cur, - clip_top, - alpha, beta, betaC, 1, 1, 0); - } - if(c_v_deblock[k] & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] | mb_strong[POS_LEFT])){ - clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0; - rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8, - clip_cur, - clip_left, - alpha, beta, betaC, 1, 1, 1); - } - } - } - } - } -} - -/** - * Initialize decoder. - */ -static av_cold int rv40_decode_init(AVCodecContext *avctx) -{ - RV34DecContext *r = avctx->priv_data; - int ret; - - r->rv30 = 0; - if ((ret = ff_rv34_decode_init(avctx)) < 0) - return ret; - if(!aic_top_vlc.bits) - rv40_init_tables(); - r->parse_slice_header = rv40_parse_slice_header; - r->decode_intra_types = rv40_decode_intra_types; - r->decode_mb_info = rv40_decode_mb_info; - r->loop_filter = rv40_loop_filter; - r->luma_dc_quant_i = rv40_luma_dc_quant[0]; - r->luma_dc_quant_p = rv40_luma_dc_quant[1]; - return 0; -} - -AVCodec ff_rv40_decoder = { - .name = "rv40", - .long_name = NULL_IF_CONFIG_SMALL("RealVideo 4.0"), - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_RV40, - .priv_data_size = sizeof(RV34DecContext), - .init = rv40_decode_init, - .close = ff_rv34_decode_end, - .decode = ff_rv34_decode_frame, - .capabilities = CODEC_CAP_DR1 | CODEC_CAP_DELAY | - CODEC_CAP_FRAME_THREADS, - .flush = ff_mpeg_flush, - .pix_fmts = ff_pixfmt_list_420, - .init_thread_copy = ONLY_IF_THREADS_ENABLED(ff_rv34_decode_init_thread_copy), - .update_thread_context = ONLY_IF_THREADS_ENABLED(ff_rv34_decode_update_thread_context), -}; |
