diff options
Diffstat (limited to 'ffmpeg1/libavcodec/rv40.c')
| -rw-r--r-- | ffmpeg1/libavcodec/rv40.c | 579 |
1 files changed, 579 insertions, 0 deletions
diff --git a/ffmpeg1/libavcodec/rv40.c b/ffmpeg1/libavcodec/rv40.c new file mode 100644 index 0000000..d6dfc5e --- /dev/null +++ b/ffmpeg1/libavcodec/rv40.c @@ -0,0 +1,579 @@ +/* + * 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 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; + + r->rv30 = 0; + ff_rv34_decode_init(avctx); + 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", + .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, + .long_name = NULL_IF_CONFIG_SMALL("RealVideo 4.0"), + .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), +}; |