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Diffstat (limited to 'ffmpeg1/libavcodec/rv34.c')
| -rw-r--r-- | ffmpeg1/libavcodec/rv34.c | 1821 |
1 files changed, 0 insertions, 1821 deletions
diff --git a/ffmpeg1/libavcodec/rv34.c b/ffmpeg1/libavcodec/rv34.c deleted file mode 100644 index 35f9dea..0000000 --- a/ffmpeg1/libavcodec/rv34.c +++ /dev/null @@ -1,1821 +0,0 @@ -/* - * RV30/40 decoder common data - * Copyright (c) 2007 Mike Melanson, 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 - * RV30/40 decoder common data - */ - -#include "libavutil/imgutils.h" -#include "libavutil/internal.h" - -#include "avcodec.h" -#include "error_resilience.h" -#include "mpegvideo.h" -#include "golomb.h" -#include "internal.h" -#include "mathops.h" -#include "rectangle.h" -#include "thread.h" - -#include "rv34vlc.h" -#include "rv34data.h" -#include "rv34.h" - -//#define DEBUG - -static inline void ZERO8x2(void* dst, int stride) -{ - fill_rectangle(dst, 1, 2, stride, 0, 4); - fill_rectangle(((uint8_t*)(dst))+4, 1, 2, stride, 0, 4); -} - -/** translation of RV30/40 macroblock types to lavc ones */ -static const int rv34_mb_type_to_lavc[12] = { - MB_TYPE_INTRA, - MB_TYPE_INTRA16x16 | MB_TYPE_SEPARATE_DC, - MB_TYPE_16x16 | MB_TYPE_L0, - MB_TYPE_8x8 | MB_TYPE_L0, - MB_TYPE_16x16 | MB_TYPE_L0, - MB_TYPE_16x16 | MB_TYPE_L1, - MB_TYPE_SKIP, - MB_TYPE_DIRECT2 | MB_TYPE_16x16, - MB_TYPE_16x8 | MB_TYPE_L0, - MB_TYPE_8x16 | MB_TYPE_L0, - MB_TYPE_16x16 | MB_TYPE_L0L1, - MB_TYPE_16x16 | MB_TYPE_L0 | MB_TYPE_SEPARATE_DC -}; - - -static RV34VLC intra_vlcs[NUM_INTRA_TABLES], inter_vlcs[NUM_INTER_TABLES]; - -static int rv34_decode_mv(RV34DecContext *r, int block_type); - -/** - * @name RV30/40 VLC generating functions - * @{ - */ - -static const int table_offs[] = { - 0, 1818, 3622, 4144, 4698, 5234, 5804, 5868, 5900, 5932, - 5996, 6252, 6316, 6348, 6380, 7674, 8944, 10274, 11668, 12250, - 14060, 15846, 16372, 16962, 17512, 18148, 18180, 18212, 18244, 18308, - 18564, 18628, 18660, 18692, 20036, 21314, 22648, 23968, 24614, 26384, - 28190, 28736, 29366, 29938, 30608, 30640, 30672, 30704, 30768, 31024, - 31088, 31120, 31184, 32570, 33898, 35236, 36644, 37286, 39020, 40802, - 41368, 42052, 42692, 43348, 43380, 43412, 43444, 43476, 43604, 43668, - 43700, 43732, 45100, 46430, 47778, 49160, 49802, 51550, 53340, 53972, - 54648, 55348, 55994, 56122, 56154, 56186, 56218, 56346, 56410, 56442, - 56474, 57878, 59290, 60636, 62036, 62682, 64460, 64524, 64588, 64716, - 64844, 66076, 67466, 67978, 68542, 69064, 69648, 70296, 72010, 72074, - 72138, 72202, 72330, 73572, 74936, 75454, 76030, 76566, 77176, 77822, - 79582, 79646, 79678, 79742, 79870, 81180, 82536, 83064, 83672, 84242, - 84934, 85576, 87384, 87448, 87480, 87544, 87672, 88982, 90340, 90902, - 91598, 92182, 92846, 93488, 95246, 95278, 95310, 95374, 95502, 96878, - 98266, 98848, 99542, 100234, 100884, 101524, 103320, 103352, 103384, 103416, - 103480, 104874, 106222, 106910, 107584, 108258, 108902, 109544, 111366, 111398, - 111430, 111462, 111494, 112878, 114320, 114988, 115660, 116310, 116950, 117592 -}; - -static VLC_TYPE table_data[117592][2]; - -/** - * Generate VLC from codeword lengths. - * @param bits codeword lengths (zeroes are accepted) - * @param size length of input data - * @param vlc output VLC - * @param insyms symbols for input codes (NULL for default ones) - * @param num VLC table number (for static initialization) - */ -static void rv34_gen_vlc(const uint8_t *bits, int size, VLC *vlc, const uint8_t *insyms, - const int num) -{ - int i; - int counts[17] = {0}, codes[17]; - uint16_t cw[MAX_VLC_SIZE], syms[MAX_VLC_SIZE]; - uint8_t bits2[MAX_VLC_SIZE]; - int maxbits = 0, realsize = 0; - - for(i = 0; i < size; i++){ - if(bits[i]){ - bits2[realsize] = bits[i]; - syms[realsize] = insyms ? insyms[i] : i; - realsize++; - maxbits = FFMAX(maxbits, bits[i]); - counts[bits[i]]++; - } - } - - codes[0] = 0; - for(i = 0; i < 16; i++) - codes[i+1] = (codes[i] + counts[i]) << 1; - for(i = 0; i < realsize; i++) - cw[i] = codes[bits2[i]]++; - - vlc->table = &table_data[table_offs[num]]; - vlc->table_allocated = table_offs[num + 1] - table_offs[num]; - ff_init_vlc_sparse(vlc, FFMIN(maxbits, 9), realsize, - bits2, 1, 1, - cw, 2, 2, - syms, 2, 2, INIT_VLC_USE_NEW_STATIC); -} - -/** - * Initialize all tables. - */ -static av_cold void rv34_init_tables(void) -{ - int i, j, k; - - for(i = 0; i < NUM_INTRA_TABLES; i++){ - for(j = 0; j < 2; j++){ - rv34_gen_vlc(rv34_table_intra_cbppat [i][j], CBPPAT_VLC_SIZE, &intra_vlcs[i].cbppattern[j], NULL, 19*i + 0 + j); - rv34_gen_vlc(rv34_table_intra_secondpat[i][j], OTHERBLK_VLC_SIZE, &intra_vlcs[i].second_pattern[j], NULL, 19*i + 2 + j); - rv34_gen_vlc(rv34_table_intra_thirdpat [i][j], OTHERBLK_VLC_SIZE, &intra_vlcs[i].third_pattern[j], NULL, 19*i + 4 + j); - for(k = 0; k < 4; k++){ - rv34_gen_vlc(rv34_table_intra_cbp[i][j+k*2], CBP_VLC_SIZE, &intra_vlcs[i].cbp[j][k], rv34_cbp_code, 19*i + 6 + j*4 + k); - } - } - for(j = 0; j < 4; j++){ - rv34_gen_vlc(rv34_table_intra_firstpat[i][j], FIRSTBLK_VLC_SIZE, &intra_vlcs[i].first_pattern[j], NULL, 19*i + 14 + j); - } - rv34_gen_vlc(rv34_intra_coeff[i], COEFF_VLC_SIZE, &intra_vlcs[i].coefficient, NULL, 19*i + 18); - } - - for(i = 0; i < NUM_INTER_TABLES; i++){ - rv34_gen_vlc(rv34_inter_cbppat[i], CBPPAT_VLC_SIZE, &inter_vlcs[i].cbppattern[0], NULL, i*12 + 95); - for(j = 0; j < 4; j++){ - rv34_gen_vlc(rv34_inter_cbp[i][j], CBP_VLC_SIZE, &inter_vlcs[i].cbp[0][j], rv34_cbp_code, i*12 + 96 + j); - } - for(j = 0; j < 2; j++){ - rv34_gen_vlc(rv34_table_inter_firstpat [i][j], FIRSTBLK_VLC_SIZE, &inter_vlcs[i].first_pattern[j], NULL, i*12 + 100 + j); - rv34_gen_vlc(rv34_table_inter_secondpat[i][j], OTHERBLK_VLC_SIZE, &inter_vlcs[i].second_pattern[j], NULL, i*12 + 102 + j); - rv34_gen_vlc(rv34_table_inter_thirdpat [i][j], OTHERBLK_VLC_SIZE, &inter_vlcs[i].third_pattern[j], NULL, i*12 + 104 + j); - } - rv34_gen_vlc(rv34_inter_coeff[i], COEFF_VLC_SIZE, &inter_vlcs[i].coefficient, NULL, i*12 + 106); - } -} - -/** @} */ // vlc group - -/** - * @name RV30/40 4x4 block decoding functions - * @{ - */ - -/** - * Decode coded block pattern. - */ -static int rv34_decode_cbp(GetBitContext *gb, RV34VLC *vlc, int table) -{ - int pattern, code, cbp=0; - int ones; - static const int cbp_masks[3] = {0x100000, 0x010000, 0x110000}; - static const int shifts[4] = { 0, 2, 8, 10 }; - const int *curshift = shifts; - int i, t, mask; - - code = get_vlc2(gb, vlc->cbppattern[table].table, 9, 2); - pattern = code & 0xF; - code >>= 4; - - ones = rv34_count_ones[pattern]; - - for(mask = 8; mask; mask >>= 1, curshift++){ - if(pattern & mask) - cbp |= get_vlc2(gb, vlc->cbp[table][ones].table, vlc->cbp[table][ones].bits, 1) << curshift[0]; - } - - for(i = 0; i < 4; i++){ - t = (modulo_three_table[code] >> (6 - 2*i)) & 3; - if(t == 1) - cbp |= cbp_masks[get_bits1(gb)] << i; - if(t == 2) - cbp |= cbp_masks[2] << i; - } - return cbp; -} - -/** - * Get one coefficient value from the bitstream and store it. - */ -static inline void decode_coeff(int16_t *dst, int coef, int esc, GetBitContext *gb, VLC* vlc, int q) -{ - if(coef){ - if(coef == esc){ - coef = get_vlc2(gb, vlc->table, 9, 2); - if(coef > 23){ - coef -= 23; - coef = 22 + ((1 << coef) | get_bits(gb, coef)); - } - coef += esc; - } - if(get_bits1(gb)) - coef = -coef; - *dst = (coef*q + 8) >> 4; - } -} - -/** - * Decode 2x2 subblock of coefficients. - */ -static inline void decode_subblock(int16_t *dst, int code, const int is_block2, GetBitContext *gb, VLC *vlc, int q) -{ - int flags = modulo_three_table[code]; - - decode_coeff( dst+0*4+0, (flags >> 6) , 3, gb, vlc, q); - if(is_block2){ - decode_coeff(dst+1*4+0, (flags >> 4) & 3, 2, gb, vlc, q); - decode_coeff(dst+0*4+1, (flags >> 2) & 3, 2, gb, vlc, q); - }else{ - decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q); - decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q); - } - decode_coeff( dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q); -} - -/** - * Decode a single coefficient. - */ -static inline void decode_subblock1(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, int q) -{ - int coeff = modulo_three_table[code] >> 6; - decode_coeff(dst, coeff, 3, gb, vlc, q); -} - -static inline void decode_subblock3(int16_t *dst, int code, GetBitContext *gb, VLC *vlc, - int q_dc, int q_ac1, int q_ac2) -{ - int flags = modulo_three_table[code]; - - decode_coeff(dst+0*4+0, (flags >> 6) , 3, gb, vlc, q_dc); - decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q_ac1); - decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q_ac1); - decode_coeff(dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q_ac2); -} - -/** - * Decode coefficients for 4x4 block. - * - * This is done by filling 2x2 subblocks with decoded coefficients - * in this order (the same for subblocks and subblock coefficients): - * o--o - * / - * / - * o--o - */ - -static int rv34_decode_block(int16_t *dst, GetBitContext *gb, RV34VLC *rvlc, int fc, int sc, int q_dc, int q_ac1, int q_ac2) -{ - int code, pattern, has_ac = 1; - - code = get_vlc2(gb, rvlc->first_pattern[fc].table, 9, 2); - - pattern = code & 0x7; - - code >>= 3; - - if (modulo_three_table[code] & 0x3F) { - decode_subblock3(dst, code, gb, &rvlc->coefficient, q_dc, q_ac1, q_ac2); - } else { - decode_subblock1(dst, code, gb, &rvlc->coefficient, q_dc); - if (!pattern) - return 0; - has_ac = 0; - } - - if(pattern & 4){ - code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2); - decode_subblock(dst + 4*0+2, code, 0, gb, &rvlc->coefficient, q_ac2); - } - if(pattern & 2){ // Looks like coefficients 1 and 2 are swapped for this block - code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2); - decode_subblock(dst + 4*2+0, code, 1, gb, &rvlc->coefficient, q_ac2); - } - if(pattern & 1){ - code = get_vlc2(gb, rvlc->third_pattern[sc].table, 9, 2); - decode_subblock(dst + 4*2+2, code, 0, gb, &rvlc->coefficient, q_ac2); - } - return has_ac | pattern; -} - -/** - * @name RV30/40 bitstream parsing - * @{ - */ - -/** - * Decode starting slice position. - * @todo Maybe replace with ff_h263_decode_mba() ? - */ -int ff_rv34_get_start_offset(GetBitContext *gb, int mb_size) -{ - int i; - for(i = 0; i < 5; i++) - if(rv34_mb_max_sizes[i] >= mb_size - 1) - break; - return rv34_mb_bits_sizes[i]; -} - -/** - * Select VLC set for decoding from current quantizer, modifier and frame type. - */ -static inline RV34VLC* choose_vlc_set(int quant, int mod, int type) -{ - if(mod == 2 && quant < 19) quant += 10; - else if(mod && quant < 26) quant += 5; - return type ? &inter_vlcs[rv34_quant_to_vlc_set[1][av_clip(quant, 0, 30)]] - : &intra_vlcs[rv34_quant_to_vlc_set[0][av_clip(quant, 0, 30)]]; -} - -/** - * Decode intra macroblock header and return CBP in case of success, -1 otherwise. - */ -static int rv34_decode_intra_mb_header(RV34DecContext *r, int8_t *intra_types) -{ - MpegEncContext *s = &r->s; - GetBitContext *gb = &s->gb; - int mb_pos = s->mb_x + s->mb_y * s->mb_stride; - int t; - - r->is16 = get_bits1(gb); - if(r->is16){ - s->current_picture_ptr->mb_type[mb_pos] = MB_TYPE_INTRA16x16; - r->block_type = RV34_MB_TYPE_INTRA16x16; - t = get_bits(gb, 2); - fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0])); - r->luma_vlc = 2; - }else{ - if(!r->rv30){ - if(!get_bits1(gb)) - av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n"); - } - s->current_picture_ptr->mb_type[mb_pos] = MB_TYPE_INTRA; - r->block_type = RV34_MB_TYPE_INTRA; - if(r->decode_intra_types(r, gb, intra_types) < 0) - return -1; - r->luma_vlc = 1; - } - - r->chroma_vlc = 0; - r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); - - return rv34_decode_cbp(gb, r->cur_vlcs, r->is16); -} - -/** - * Decode inter macroblock header and return CBP in case of success, -1 otherwise. - */ -static int rv34_decode_inter_mb_header(RV34DecContext *r, int8_t *intra_types) -{ - MpegEncContext *s = &r->s; - GetBitContext *gb = &s->gb; - int mb_pos = s->mb_x + s->mb_y * s->mb_stride; - int i, t; - - r->block_type = r->decode_mb_info(r); - if(r->block_type == -1) - return -1; - s->current_picture_ptr->mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type]; - r->mb_type[mb_pos] = r->block_type; - if(r->block_type == RV34_MB_SKIP){ - if(s->pict_type == AV_PICTURE_TYPE_P) - r->mb_type[mb_pos] = RV34_MB_P_16x16; - if(s->pict_type == AV_PICTURE_TYPE_B) - r->mb_type[mb_pos] = RV34_MB_B_DIRECT; - } - r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->mb_type[mb_pos]); - rv34_decode_mv(r, r->block_type); - if(r->block_type == RV34_MB_SKIP){ - fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0])); - return 0; - } - r->chroma_vlc = 1; - r->luma_vlc = 0; - - if(IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){ - if(r->is16){ - t = get_bits(gb, 2); - fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0])); - r->luma_vlc = 2; - }else{ - if(r->decode_intra_types(r, gb, intra_types) < 0) - return -1; - r->luma_vlc = 1; - } - r->chroma_vlc = 0; - r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); - }else{ - for(i = 0; i < 16; i++) - intra_types[(i & 3) + (i>>2) * r->intra_types_stride] = 0; - r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1); - if(r->mb_type[mb_pos] == RV34_MB_P_MIX16x16){ - r->is16 = 1; - r->chroma_vlc = 1; - r->luma_vlc = 2; - r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0); - } - } - - return rv34_decode_cbp(gb, r->cur_vlcs, r->is16); -} - -/** @} */ //bitstream functions - -/** - * @name motion vector related code (prediction, reconstruction, motion compensation) - * @{ - */ - -/** macroblock partition width in 8x8 blocks */ -static const uint8_t part_sizes_w[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 2, 1, 2, 2 }; - -/** macroblock partition height in 8x8 blocks */ -static const uint8_t part_sizes_h[RV34_MB_TYPES] = { 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2 }; - -/** availability index for subblocks */ -static const uint8_t avail_indexes[4] = { 6, 7, 10, 11 }; - -/** - * motion vector prediction - * - * Motion prediction performed for the block by using median prediction of - * motion vectors from the left, top and right top blocks but in corner cases - * some other vectors may be used instead. - */ -static void rv34_pred_mv(RV34DecContext *r, int block_type, int subblock_no, int dmv_no) -{ - MpegEncContext *s = &r->s; - int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; - int A[2] = {0}, B[2], C[2]; - int i, j; - int mx, my; - int* avail = r->avail_cache + avail_indexes[subblock_no]; - int c_off = part_sizes_w[block_type]; - - mv_pos += (subblock_no & 1) + (subblock_no >> 1)*s->b8_stride; - if(subblock_no == 3) - c_off = -1; - - if(avail[-1]){ - A[0] = s->current_picture_ptr->motion_val[0][mv_pos-1][0]; - A[1] = s->current_picture_ptr->motion_val[0][mv_pos-1][1]; - } - if(avail[-4]){ - B[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride][0]; - B[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride][1]; - }else{ - B[0] = A[0]; - B[1] = A[1]; - } - if(!avail[c_off-4]){ - if(avail[-4] && (avail[-1] || r->rv30)){ - C[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride-1][0]; - C[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride-1][1]; - }else{ - C[0] = A[0]; - C[1] = A[1]; - } - }else{ - C[0] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride+c_off][0]; - C[1] = s->current_picture_ptr->motion_val[0][mv_pos-s->b8_stride+c_off][1]; - } - mx = mid_pred(A[0], B[0], C[0]); - my = mid_pred(A[1], B[1], C[1]); - mx += r->dmv[dmv_no][0]; - my += r->dmv[dmv_no][1]; - for(j = 0; j < part_sizes_h[block_type]; j++){ - for(i = 0; i < part_sizes_w[block_type]; i++){ - s->current_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][0] = mx; - s->current_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][1] = my; - } - } -} - -#define GET_PTS_DIFF(a, b) ((a - b + 8192) & 0x1FFF) - -/** - * Calculate motion vector component that should be added for direct blocks. - */ -static int calc_add_mv(RV34DecContext *r, int dir, int val) -{ - int mul = dir ? -r->mv_weight2 : r->mv_weight1; - - return (val * mul + 0x2000) >> 14; -} - -/** - * Predict motion vector for B-frame macroblock. - */ -static inline void rv34_pred_b_vector(int A[2], int B[2], int C[2], - int A_avail, int B_avail, int C_avail, - int *mx, int *my) -{ - if(A_avail + B_avail + C_avail != 3){ - *mx = A[0] + B[0] + C[0]; - *my = A[1] + B[1] + C[1]; - if(A_avail + B_avail + C_avail == 2){ - *mx /= 2; - *my /= 2; - } - }else{ - *mx = mid_pred(A[0], B[0], C[0]); - *my = mid_pred(A[1], B[1], C[1]); - } -} - -/** - * motion vector prediction for B-frames - */ -static void rv34_pred_mv_b(RV34DecContext *r, int block_type, int dir) -{ - MpegEncContext *s = &r->s; - int mb_pos = s->mb_x + s->mb_y * s->mb_stride; - int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; - int A[2] = { 0 }, B[2] = { 0 }, C[2] = { 0 }; - int has_A = 0, has_B = 0, has_C = 0; - int mx, my; - int i, j; - Picture *cur_pic = s->current_picture_ptr; - const int mask = dir ? MB_TYPE_L1 : MB_TYPE_L0; - int type = cur_pic->mb_type[mb_pos]; - - if((r->avail_cache[6-1] & type) & mask){ - A[0] = cur_pic->motion_val[dir][mv_pos - 1][0]; - A[1] = cur_pic->motion_val[dir][mv_pos - 1][1]; - has_A = 1; - } - if((r->avail_cache[6-4] & type) & mask){ - B[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride][0]; - B[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride][1]; - has_B = 1; - } - if(r->avail_cache[6-4] && (r->avail_cache[6-2] & type) & mask){ - C[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride + 2][0]; - C[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride + 2][1]; - has_C = 1; - }else if((s->mb_x+1) == s->mb_width && (r->avail_cache[6-5] & type) & mask){ - C[0] = cur_pic->motion_val[dir][mv_pos - s->b8_stride - 1][0]; - C[1] = cur_pic->motion_val[dir][mv_pos - s->b8_stride - 1][1]; - has_C = 1; - } - - rv34_pred_b_vector(A, B, C, has_A, has_B, has_C, &mx, &my); - - mx += r->dmv[dir][0]; - my += r->dmv[dir][1]; - - for(j = 0; j < 2; j++){ - for(i = 0; i < 2; i++){ - cur_pic->motion_val[dir][mv_pos + i + j*s->b8_stride][0] = mx; - cur_pic->motion_val[dir][mv_pos + i + j*s->b8_stride][1] = my; - } - } - if(block_type == RV34_MB_B_BACKWARD || block_type == RV34_MB_B_FORWARD){ - ZERO8x2(cur_pic->motion_val[!dir][mv_pos], s->b8_stride); - } -} - -/** - * motion vector prediction - RV3 version - */ -static void rv34_pred_mv_rv3(RV34DecContext *r, int block_type, int dir) -{ - MpegEncContext *s = &r->s; - int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; - int A[2] = {0}, B[2], C[2]; - int i, j, k; - int mx, my; - int* avail = r->avail_cache + avail_indexes[0]; - - if(avail[-1]){ - A[0] = s->current_picture_ptr->motion_val[0][mv_pos - 1][0]; - A[1] = s->current_picture_ptr->motion_val[0][mv_pos - 1][1]; - } - if(avail[-4]){ - B[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride][0]; - B[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride][1]; - }else{ - B[0] = A[0]; - B[1] = A[1]; - } - if(!avail[-4 + 2]){ - if(avail[-4] && (avail[-1])){ - C[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride - 1][0]; - C[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride - 1][1]; - }else{ - C[0] = A[0]; - C[1] = A[1]; - } - }else{ - C[0] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride + 2][0]; - C[1] = s->current_picture_ptr->motion_val[0][mv_pos - s->b8_stride + 2][1]; - } - mx = mid_pred(A[0], B[0], C[0]); - my = mid_pred(A[1], B[1], C[1]); - mx += r->dmv[0][0]; - my += r->dmv[0][1]; - for(j = 0; j < 2; j++){ - for(i = 0; i < 2; i++){ - for(k = 0; k < 2; k++){ - s->current_picture_ptr->motion_val[k][mv_pos + i + j*s->b8_stride][0] = mx; - s->current_picture_ptr->motion_val[k][mv_pos + i + j*s->b8_stride][1] = my; - } - } - } -} - -static const int chroma_coeffs[3] = { 0, 3, 5 }; - -/** - * generic motion compensation function - * - * @param r decoder context - * @param block_type type of the current block - * @param xoff horizontal offset from the start of the current block - * @param yoff vertical offset from the start of the current block - * @param mv_off offset to the motion vector information - * @param width width of the current partition in 8x8 blocks - * @param height height of the current partition in 8x8 blocks - * @param dir motion compensation direction (i.e. from the last or the next reference frame) - * @param thirdpel motion vectors are specified in 1/3 of pixel - * @param qpel_mc a set of functions used to perform luma motion compensation - * @param chroma_mc a set of functions used to perform chroma motion compensation - */ -static inline void rv34_mc(RV34DecContext *r, const int block_type, - const int xoff, const int yoff, int mv_off, - const int width, const int height, int dir, - const int thirdpel, int weighted, - qpel_mc_func (*qpel_mc)[16], - h264_chroma_mc_func (*chroma_mc)) -{ - MpegEncContext *s = &r->s; - uint8_t *Y, *U, *V, *srcY, *srcU, *srcV; - int dxy, mx, my, umx, umy, lx, ly, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; - int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride + mv_off; - int is16x16 = 1; - - if(thirdpel){ - int chroma_mx, chroma_my; - mx = (s->current_picture_ptr->motion_val[dir][mv_pos][0] + (3 << 24)) / 3 - (1 << 24); - my = (s->current_picture_ptr->motion_val[dir][mv_pos][1] + (3 << 24)) / 3 - (1 << 24); - lx = (s->current_picture_ptr->motion_val[dir][mv_pos][0] + (3 << 24)) % 3; - ly = (s->current_picture_ptr->motion_val[dir][mv_pos][1] + (3 << 24)) % 3; - chroma_mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2; - chroma_my = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2; - umx = (chroma_mx + (3 << 24)) / 3 - (1 << 24); - umy = (chroma_my + (3 << 24)) / 3 - (1 << 24); - uvmx = chroma_coeffs[(chroma_mx + (3 << 24)) % 3]; - uvmy = chroma_coeffs[(chroma_my + (3 << 24)) % 3]; - }else{ - int cx, cy; - mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] >> 2; - my = s->current_picture_ptr->motion_val[dir][mv_pos][1] >> 2; - lx = s->current_picture_ptr->motion_val[dir][mv_pos][0] & 3; - ly = s->current_picture_ptr->motion_val[dir][mv_pos][1] & 3; - cx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2; - cy = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2; - umx = cx >> 2; - umy = cy >> 2; - uvmx = (cx & 3) << 1; - uvmy = (cy & 3) << 1; - //due to some flaw RV40 uses the same MC compensation routine for H2V2 and H3V3 - if(uvmx == 6 && uvmy == 6) - uvmx = uvmy = 4; - } - - if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) { - /* wait for the referenced mb row to be finished */ - int mb_row = s->mb_y + ((yoff + my + 5 + 8 * height) >> 4); - ThreadFrame *f = dir ? &s->next_picture_ptr->tf : &s->last_picture_ptr->tf; - ff_thread_await_progress(f, mb_row, 0); - } - - dxy = ly*4 + lx; - srcY = dir ? s->next_picture_ptr->f.data[0] : s->last_picture_ptr->f.data[0]; - srcU = dir ? s->next_picture_ptr->f.data[1] : s->last_picture_ptr->f.data[1]; - srcV = dir ? s->next_picture_ptr->f.data[2] : s->last_picture_ptr->f.data[2]; - src_x = s->mb_x * 16 + xoff + mx; - src_y = s->mb_y * 16 + yoff + my; - uvsrc_x = s->mb_x * 8 + (xoff >> 1) + umx; - uvsrc_y = s->mb_y * 8 + (yoff >> 1) + umy; - srcY += src_y * s->linesize + src_x; - srcU += uvsrc_y * s->uvlinesize + uvsrc_x; - srcV += uvsrc_y * s->uvlinesize + uvsrc_x; - if(s->h_edge_pos - (width << 3) < 6 || s->v_edge_pos - (height << 3) < 6 || - (unsigned)(src_x - !!lx*2) > s->h_edge_pos - !!lx*2 - (width <<3) - 4 || - (unsigned)(src_y - !!ly*2) > s->v_edge_pos - !!ly*2 - (height<<3) - 4) { - uint8_t *uvbuf = s->edge_emu_buffer + 22 * s->linesize; - - srcY -= 2 + 2*s->linesize; - s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, (width<<3)+6, (height<<3)+6, - src_x - 2, src_y - 2, s->h_edge_pos, s->v_edge_pos); - srcY = s->edge_emu_buffer + 2 + 2*s->linesize; - s->vdsp.emulated_edge_mc(uvbuf , srcU, s->uvlinesize, (width<<2)+1, (height<<2)+1, - uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1); - s->vdsp.emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, (width<<2)+1, (height<<2)+1, - uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1); - srcU = uvbuf; - srcV = uvbuf + 16; - } - if(!weighted){ - Y = s->dest[0] + xoff + yoff *s->linesize; - U = s->dest[1] + (xoff>>1) + (yoff>>1)*s->uvlinesize; - V = s->dest[2] + (xoff>>1) + (yoff>>1)*s->uvlinesize; - }else{ - Y = r->tmp_b_block_y [dir] + xoff + yoff *s->linesize; - U = r->tmp_b_block_uv[dir*2] + (xoff>>1) + (yoff>>1)*s->uvlinesize; - V = r->tmp_b_block_uv[dir*2+1] + (xoff>>1) + (yoff>>1)*s->uvlinesize; - } - - if(block_type == RV34_MB_P_16x8){ - qpel_mc[1][dxy](Y, srcY, s->linesize); - Y += 8; - srcY += 8; - }else if(block_type == RV34_MB_P_8x16){ - qpel_mc[1][dxy](Y, srcY, s->linesize); - Y += 8 * s->linesize; - srcY += 8 * s->linesize; - } - is16x16 = (block_type != RV34_MB_P_8x8) && (block_type != RV34_MB_P_16x8) && (block_type != RV34_MB_P_8x16); - qpel_mc[!is16x16][dxy](Y, srcY, s->linesize); - chroma_mc[2-width] (U, srcU, s->uvlinesize, height*4, uvmx, uvmy); - chroma_mc[2-width] (V, srcV, s->uvlinesize, height*4, uvmx, uvmy); -} - -static void rv34_mc_1mv(RV34DecContext *r, const int block_type, - const int xoff, const int yoff, int mv_off, - const int width, const int height, int dir) -{ - rv34_mc(r, block_type, xoff, yoff, mv_off, width, height, dir, r->rv30, 0, - r->rdsp.put_pixels_tab, - r->rdsp.put_chroma_pixels_tab); -} - -static void rv4_weight(RV34DecContext *r) -{ - r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][0](r->s.dest[0], - r->tmp_b_block_y[0], - r->tmp_b_block_y[1], - r->weight1, - r->weight2, - r->s.linesize); - r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][1](r->s.dest[1], - r->tmp_b_block_uv[0], - r->tmp_b_block_uv[2], - r->weight1, - r->weight2, - r->s.uvlinesize); - r->rdsp.rv40_weight_pixels_tab[r->scaled_weight][1](r->s.dest[2], - r->tmp_b_block_uv[1], - r->tmp_b_block_uv[3], - r->weight1, - r->weight2, - r->s.uvlinesize); -} - -static void rv34_mc_2mv(RV34DecContext *r, const int block_type) -{ - int weighted = !r->rv30 && block_type != RV34_MB_B_BIDIR && r->weight1 != 8192; - - rv34_mc(r, block_type, 0, 0, 0, 2, 2, 0, r->rv30, weighted, - r->rdsp.put_pixels_tab, - r->rdsp.put_chroma_pixels_tab); - if(!weighted){ - rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30, 0, - r->rdsp.avg_pixels_tab, - r->rdsp.avg_chroma_pixels_tab); - }else{ - rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30, 1, - r->rdsp.put_pixels_tab, - r->rdsp.put_chroma_pixels_tab); - rv4_weight(r); - } -} - -static void rv34_mc_2mv_skip(RV34DecContext *r) -{ - int i, j; - int weighted = !r->rv30 && r->weight1 != 8192; - - for(j = 0; j < 2; j++) - for(i = 0; i < 2; i++){ - rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 0, r->rv30, - weighted, - r->rdsp.put_pixels_tab, - r->rdsp.put_chroma_pixels_tab); - rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 1, r->rv30, - weighted, - weighted ? r->rdsp.put_pixels_tab : r->rdsp.avg_pixels_tab, - weighted ? r->rdsp.put_chroma_pixels_tab : r->rdsp.avg_chroma_pixels_tab); - } - if(weighted) - rv4_weight(r); -} - -/** number of motion vectors in each macroblock type */ -static const int num_mvs[RV34_MB_TYPES] = { 0, 0, 1, 4, 1, 1, 0, 0, 2, 2, 2, 1 }; - -/** - * Decode motion vector differences - * and perform motion vector reconstruction and motion compensation. - */ -static int rv34_decode_mv(RV34DecContext *r, int block_type) -{ - MpegEncContext *s = &r->s; - GetBitContext *gb = &s->gb; - int i, j, k, l; - int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; - int next_bt; - - memset(r->dmv, 0, sizeof(r->dmv)); - for(i = 0; i < num_mvs[block_type]; i++){ - r->dmv[i][0] = svq3_get_se_golomb(gb); - r->dmv[i][1] = svq3_get_se_golomb(gb); - } - switch(block_type){ - case RV34_MB_TYPE_INTRA: - case RV34_MB_TYPE_INTRA16x16: - ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); - return 0; - case RV34_MB_SKIP: - if(s->pict_type == AV_PICTURE_TYPE_P){ - ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); - rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, 0); - break; - } - case RV34_MB_B_DIRECT: - //surprisingly, it uses motion scheme from next reference frame - /* wait for the current mb row to be finished */ - if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) - ff_thread_await_progress(&s->next_picture_ptr->tf, FFMAX(0, s->mb_y-1), 0); - - next_bt = s->next_picture_ptr->mb_type[s->mb_x + s->mb_y * s->mb_stride]; - if(IS_INTRA(next_bt) || IS_SKIP(next_bt)){ - ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); - ZERO8x2(s->current_picture_ptr->motion_val[1][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); - }else - for(j = 0; j < 2; j++) - for(i = 0; i < 2; i++) - for(k = 0; k < 2; k++) - for(l = 0; l < 2; l++) - s->current_picture_ptr->motion_val[l][mv_pos + i + j*s->b8_stride][k] = calc_add_mv(r, l, s->next_picture_ptr->motion_val[0][mv_pos + i + j*s->b8_stride][k]); - if(!(IS_16X8(next_bt) || IS_8X16(next_bt) || IS_8X8(next_bt))) //we can use whole macroblock MC - rv34_mc_2mv(r, block_type); - else - rv34_mc_2mv_skip(r); - ZERO8x2(s->current_picture_ptr->motion_val[0][s->mb_x * 2 + s->mb_y * 2 * s->b8_stride], s->b8_stride); - break; - case RV34_MB_P_16x16: - case RV34_MB_P_MIX16x16: - rv34_pred_mv(r, block_type, 0, 0); - rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, 0); - break; - case RV34_MB_B_FORWARD: - case RV34_MB_B_BACKWARD: - r->dmv[1][0] = r->dmv[0][0]; - r->dmv[1][1] = r->dmv[0][1]; - if(r->rv30) - rv34_pred_mv_rv3(r, block_type, block_type == RV34_MB_B_BACKWARD); - else - rv34_pred_mv_b (r, block_type, block_type == RV34_MB_B_BACKWARD); - rv34_mc_1mv (r, block_type, 0, 0, 0, 2, 2, block_type == RV34_MB_B_BACKWARD); - break; - case RV34_MB_P_16x8: - case RV34_MB_P_8x16: - rv34_pred_mv(r, block_type, 0, 0); - rv34_pred_mv(r, block_type, 1 + (block_type == RV34_MB_P_16x8), 1); - if(block_type == RV34_MB_P_16x8){ - rv34_mc_1mv(r, block_type, 0, 0, 0, 2, 1, 0); - rv34_mc_1mv(r, block_type, 0, 8, s->b8_stride, 2, 1, 0); - } - if(block_type == RV34_MB_P_8x16){ - rv34_mc_1mv(r, block_type, 0, 0, 0, 1, 2, 0); - rv34_mc_1mv(r, block_type, 8, 0, 1, 1, 2, 0); - } - break; - case RV34_MB_B_BIDIR: - rv34_pred_mv_b (r, block_type, 0); - rv34_pred_mv_b (r, block_type, 1); - rv34_mc_2mv (r, block_type); - break; - case RV34_MB_P_8x8: - for(i=0;i< 4;i++){ - rv34_pred_mv(r, block_type, i, i); - rv34_mc_1mv (r, block_type, (i&1)<<3, (i&2)<<2, (i&1)+(i>>1)*s->b8_stride, 1, 1, 0); - } - break; - } - - return 0; -} -/** @} */ // mv group - -/** - * @name Macroblock reconstruction functions - * @{ - */ -/** mapping of RV30/40 intra prediction types to standard H.264 types */ -static const int ittrans[9] = { - DC_PRED, VERT_PRED, HOR_PRED, DIAG_DOWN_RIGHT_PRED, DIAG_DOWN_LEFT_PRED, - VERT_RIGHT_PRED, VERT_LEFT_PRED, HOR_UP_PRED, HOR_DOWN_PRED, -}; - -/** mapping of RV30/40 intra 16x16 prediction types to standard H.264 types */ -static const int ittrans16[4] = { - DC_PRED8x8, VERT_PRED8x8, HOR_PRED8x8, PLANE_PRED8x8, -}; - -/** - * Perform 4x4 intra prediction. - */ -static void rv34_pred_4x4_block(RV34DecContext *r, uint8_t *dst, int stride, int itype, int up, int left, int down, int right) -{ - uint8_t *prev = dst - stride + 4; - uint32_t topleft; - - if(!up && !left) - itype = DC_128_PRED; - else if(!up){ - if(itype == VERT_PRED) itype = HOR_PRED; - if(itype == DC_PRED) itype = LEFT_DC_PRED; - }else if(!left){ - if(itype == HOR_PRED) itype = VERT_PRED; - if(itype == DC_PRED) itype = TOP_DC_PRED; - if(itype == DIAG_DOWN_LEFT_PRED) itype = DIAG_DOWN_LEFT_PRED_RV40_NODOWN; - } - if(!down){ - if(itype == DIAG_DOWN_LEFT_PRED) itype = DIAG_DOWN_LEFT_PRED_RV40_NODOWN; - if(itype == HOR_UP_PRED) itype = HOR_UP_PRED_RV40_NODOWN; - if(itype == VERT_LEFT_PRED) itype = VERT_LEFT_PRED_RV40_NODOWN; - } - if(!right && up){ - topleft = dst[-stride + 3] * 0x01010101u; - prev = (uint8_t*)&topleft; - } - r->h.pred4x4[itype](dst, prev, stride); -} - -static inline int adjust_pred16(int itype, int up, int left) -{ - if(!up && !left) - itype = DC_128_PRED8x8; - else if(!up){ - if(itype == PLANE_PRED8x8)itype = HOR_PRED8x8; - if(itype == VERT_PRED8x8) itype = HOR_PRED8x8; - if(itype == DC_PRED8x8) itype = LEFT_DC_PRED8x8; - }else if(!left){ - if(itype == PLANE_PRED8x8)itype = VERT_PRED8x8; - if(itype == HOR_PRED8x8) itype = VERT_PRED8x8; - if(itype == DC_PRED8x8) itype = TOP_DC_PRED8x8; - } - return itype; -} - -static inline void rv34_process_block(RV34DecContext *r, - uint8_t *pdst, int stride, - int fc, int sc, int q_dc, int q_ac) -{ - MpegEncContext *s = &r->s; - int16_t *ptr = s->block[0]; - int has_ac = rv34_decode_block(ptr, &s->gb, r->cur_vlcs, - fc, sc, q_dc, q_ac, q_ac); - if(has_ac){ - r->rdsp.rv34_idct_add(pdst, stride, ptr); - }else{ - r->rdsp.rv34_idct_dc_add(pdst, stride, ptr[0]); - ptr[0] = 0; - } -} - -static void rv34_output_i16x16(RV34DecContext *r, int8_t *intra_types, int cbp) -{ - LOCAL_ALIGNED_16(int16_t, block16, [16]); - MpegEncContext *s = &r->s; - GetBitContext *gb = &s->gb; - int q_dc = rv34_qscale_tab[ r->luma_dc_quant_i[s->qscale] ], - q_ac = rv34_qscale_tab[s->qscale]; - uint8_t *dst = s->dest[0]; - int16_t *ptr = s->block[0]; - int i, j, itype, has_ac; - - memset(block16, 0, 16 * sizeof(*block16)); - - has_ac = rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac); - if(has_ac) - r->rdsp.rv34_inv_transform(block16); - else - r->rdsp.rv34_inv_transform_dc(block16); - - itype = ittrans16[intra_types[0]]; - itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]); - r->h.pred16x16[itype](dst, s->linesize); - - for(j = 0; j < 4; j++){ - for(i = 0; i < 4; i++, cbp >>= 1){ - int dc = block16[i + j*4]; - - if(cbp & 1){ - has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac); - }else - has_ac = 0; - - if(has_ac){ - ptr[0] = dc; - r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr); - }else - r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc); - } - - dst += 4*s->linesize; - } - - itype = ittrans16[intra_types[0]]; - if(itype == PLANE_PRED8x8) itype = DC_PRED8x8; - itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]); - - q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; - q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; - - for(j = 1; j < 3; j++){ - dst = s->dest[j]; - r->h.pred8x8[itype](dst, s->uvlinesize); - for(i = 0; i < 4; i++, cbp >>= 1){ - uint8_t *pdst; - if(!(cbp & 1)) continue; - pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize; - - rv34_process_block(r, pdst, s->uvlinesize, - r->chroma_vlc, 1, q_dc, q_ac); - } - } -} - -static void rv34_output_intra(RV34DecContext *r, int8_t *intra_types, int cbp) -{ - MpegEncContext *s = &r->s; - uint8_t *dst = s->dest[0]; - int avail[6*8] = {0}; - int i, j, k; - int idx, q_ac, q_dc; - - // Set neighbour information. - if(r->avail_cache[1]) - avail[0] = 1; - if(r->avail_cache[2]) - avail[1] = avail[2] = 1; - if(r->avail_cache[3]) - avail[3] = avail[4] = 1; - if(r->avail_cache[4]) - avail[5] = 1; - if(r->avail_cache[5]) - avail[8] = avail[16] = 1; - if(r->avail_cache[9]) - avail[24] = avail[32] = 1; - - q_ac = rv34_qscale_tab[s->qscale]; - for(j = 0; j < 4; j++){ - idx = 9 + j*8; - for(i = 0; i < 4; i++, cbp >>= 1, dst += 4, idx++){ - rv34_pred_4x4_block(r, dst, s->linesize, ittrans[intra_types[i]], avail[idx-8], avail[idx-1], avail[idx+7], avail[idx-7]); - avail[idx] = 1; - if(!(cbp & 1)) continue; - - rv34_process_block(r, dst, s->linesize, - r->luma_vlc, 0, q_ac, q_ac); - } - dst += s->linesize * 4 - 4*4; - intra_types += r->intra_types_stride; - } - - intra_types -= r->intra_types_stride * 4; - - q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; - q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; - - for(k = 0; k < 2; k++){ - dst = s->dest[1+k]; - fill_rectangle(r->avail_cache + 6, 2, 2, 4, 0, 4); - - for(j = 0; j < 2; j++){ - int* acache = r->avail_cache + 6 + j*4; - for(i = 0; i < 2; i++, cbp >>= 1, acache++){ - int itype = ittrans[intra_types[i*2+j*2*r->intra_types_stride]]; - rv34_pred_4x4_block(r, dst+4*i, s->uvlinesize, itype, acache[-4], acache[-1], !i && !j, acache[-3]); - acache[0] = 1; - - if(!(cbp&1)) continue; - - rv34_process_block(r, dst + 4*i, s->uvlinesize, - r->chroma_vlc, 1, q_dc, q_ac); - } - - dst += 4*s->uvlinesize; - } - } -} - -static int is_mv_diff_gt_3(int16_t (*motion_val)[2], int step) -{ - int d; - d = motion_val[0][0] - motion_val[-step][0]; - if(d < -3 || d > 3) - return 1; - d = motion_val[0][1] - motion_val[-step][1]; - if(d < -3 || d > 3) - return 1; - return 0; -} - -static int rv34_set_deblock_coef(RV34DecContext *r) -{ - MpegEncContext *s = &r->s; - int hmvmask = 0, vmvmask = 0, i, j; - int midx = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride; - int16_t (*motion_val)[2] = &s->current_picture_ptr->motion_val[0][midx]; - for(j = 0; j < 16; j += 8){ - for(i = 0; i < 2; i++){ - if(is_mv_diff_gt_3(motion_val + i, 1)) - vmvmask |= 0x11 << (j + i*2); - if((j || s->mb_y) && is_mv_diff_gt_3(motion_val + i, s->b8_stride)) - hmvmask |= 0x03 << (j + i*2); - } - motion_val += s->b8_stride; - } - if(s->first_slice_line) - hmvmask &= ~0x000F; - if(!s->mb_x) - vmvmask &= ~0x1111; - if(r->rv30){ //RV30 marks both subblocks on the edge for filtering - vmvmask |= (vmvmask & 0x4444) >> 1; - hmvmask |= (hmvmask & 0x0F00) >> 4; - if(s->mb_x) - r->deblock_coefs[s->mb_x - 1 + s->mb_y*s->mb_stride] |= (vmvmask & 0x1111) << 3; - if(!s->first_slice_line) - r->deblock_coefs[s->mb_x + (s->mb_y - 1)*s->mb_stride] |= (hmvmask & 0xF) << 12; - } - return hmvmask | vmvmask; -} - -static int rv34_decode_inter_macroblock(RV34DecContext *r, int8_t *intra_types) -{ - MpegEncContext *s = &r->s; - GetBitContext *gb = &s->gb; - uint8_t *dst = s->dest[0]; - int16_t *ptr = s->block[0]; - int mb_pos = s->mb_x + s->mb_y * s->mb_stride; - int cbp, cbp2; - int q_dc, q_ac, has_ac; - int i, j; - int dist; - - // Calculate which neighbours are available. Maybe it's worth optimizing too. - memset(r->avail_cache, 0, sizeof(r->avail_cache)); - fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4); - dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width; - if(s->mb_x && dist) - r->avail_cache[5] = - r->avail_cache[9] = s->current_picture_ptr->mb_type[mb_pos - 1]; - if(dist >= s->mb_width) - r->avail_cache[2] = - r->avail_cache[3] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride]; - if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1) - r->avail_cache[4] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride + 1]; - if(s->mb_x && dist > s->mb_width) - r->avail_cache[1] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride - 1]; - - s->qscale = r->si.quant; - cbp = cbp2 = rv34_decode_inter_mb_header(r, intra_types); - r->cbp_luma [mb_pos] = cbp; - r->cbp_chroma[mb_pos] = cbp >> 16; - r->deblock_coefs[mb_pos] = rv34_set_deblock_coef(r) | r->cbp_luma[mb_pos]; - s->current_picture_ptr->qscale_table[mb_pos] = s->qscale; - - if(cbp == -1) - return -1; - - if (IS_INTRA(s->current_picture_ptr->mb_type[mb_pos])){ - if(r->is16) rv34_output_i16x16(r, intra_types, cbp); - else rv34_output_intra(r, intra_types, cbp); - return 0; - } - - if(r->is16){ - // Only for RV34_MB_P_MIX16x16 - LOCAL_ALIGNED_16(int16_t, block16, [16]); - memset(block16, 0, 16 * sizeof(*block16)); - q_dc = rv34_qscale_tab[ r->luma_dc_quant_p[s->qscale] ]; - q_ac = rv34_qscale_tab[s->qscale]; - if (rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac)) - r->rdsp.rv34_inv_transform(block16); - else - r->rdsp.rv34_inv_transform_dc(block16); - - q_ac = rv34_qscale_tab[s->qscale]; - - for(j = 0; j < 4; j++){ - for(i = 0; i < 4; i++, cbp >>= 1){ - int dc = block16[i + j*4]; - - if(cbp & 1){ - has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac); - }else - has_ac = 0; - - if(has_ac){ - ptr[0] = dc; - r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr); - }else - r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc); - } - - dst += 4*s->linesize; - } - - r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1); - }else{ - q_ac = rv34_qscale_tab[s->qscale]; - - for(j = 0; j < 4; j++){ - for(i = 0; i < 4; i++, cbp >>= 1){ - if(!(cbp & 1)) continue; - - rv34_process_block(r, dst + 4*i, s->linesize, - r->luma_vlc, 0, q_ac, q_ac); - } - dst += 4*s->linesize; - } - } - - q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]]; - q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]]; - - for(j = 1; j < 3; j++){ - dst = s->dest[j]; - for(i = 0; i < 4; i++, cbp >>= 1){ - uint8_t *pdst; - if(!(cbp & 1)) continue; - pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize; - - rv34_process_block(r, pdst, s->uvlinesize, - r->chroma_vlc, 1, q_dc, q_ac); - } - } - - return 0; -} - -static int rv34_decode_intra_macroblock(RV34DecContext *r, int8_t *intra_types) -{ - MpegEncContext *s = &r->s; - int cbp, dist; - int mb_pos = s->mb_x + s->mb_y * s->mb_stride; - - // Calculate which neighbours are available. Maybe it's worth optimizing too. - memset(r->avail_cache, 0, sizeof(r->avail_cache)); - fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4); - dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width; - if(s->mb_x && dist) - r->avail_cache[5] = - r->avail_cache[9] = s->current_picture_ptr->mb_type[mb_pos - 1]; - if(dist >= s->mb_width) - r->avail_cache[2] = - r->avail_cache[3] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride]; - if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1) - r->avail_cache[4] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride + 1]; - if(s->mb_x && dist > s->mb_width) - r->avail_cache[1] = s->current_picture_ptr->mb_type[mb_pos - s->mb_stride - 1]; - - s->qscale = r->si.quant; - cbp = rv34_decode_intra_mb_header(r, intra_types); - r->cbp_luma [mb_pos] = cbp; - r->cbp_chroma[mb_pos] = cbp >> 16; - r->deblock_coefs[mb_pos] = 0xFFFF; - s->current_picture_ptr->qscale_table[mb_pos] = s->qscale; - - if(cbp == -1) - return -1; - - if(r->is16){ - rv34_output_i16x16(r, intra_types, cbp); - return 0; - } - - rv34_output_intra(r, intra_types, cbp); - return 0; -} - -static int check_slice_end(RV34DecContext *r, MpegEncContext *s) -{ - int bits; - if(s->mb_y >= s->mb_height) - return 1; - if(!s->mb_num_left) - return 1; - if(r->s.mb_skip_run > 1) - return 0; - bits = get_bits_left(&s->gb); - if(bits <= 0 || (bits < 8 && !show_bits(&s->gb, bits))) - return 1; - return 0; -} - - -static void rv34_decoder_free(RV34DecContext *r) -{ - av_freep(&r->intra_types_hist); - r->intra_types = NULL; - av_freep(&r->tmp_b_block_base); - av_freep(&r->mb_type); - av_freep(&r->cbp_luma); - av_freep(&r->cbp_chroma); - av_freep(&r->deblock_coefs); -} - - -static int rv34_decoder_alloc(RV34DecContext *r) -{ - r->intra_types_stride = r->s.mb_width * 4 + 4; - - r->cbp_chroma = av_malloc(r->s.mb_stride * r->s.mb_height * - sizeof(*r->cbp_chroma)); - r->cbp_luma = av_malloc(r->s.mb_stride * r->s.mb_height * - sizeof(*r->cbp_luma)); - r->deblock_coefs = av_malloc(r->s.mb_stride * r->s.mb_height * - sizeof(*r->deblock_coefs)); - r->intra_types_hist = av_malloc(r->intra_types_stride * 4 * 2 * - sizeof(*r->intra_types_hist)); - r->mb_type = av_mallocz(r->s.mb_stride * r->s.mb_height * - sizeof(*r->mb_type)); - - if (!(r->cbp_chroma && r->cbp_luma && r->deblock_coefs && - r->intra_types_hist && r->mb_type)) { - rv34_decoder_free(r); - return AVERROR(ENOMEM); - } - - r->intra_types = r->intra_types_hist + r->intra_types_stride * 4; - - return 0; -} - - -static int rv34_decoder_realloc(RV34DecContext *r) -{ - rv34_decoder_free(r); - return rv34_decoder_alloc(r); -} - - -static int rv34_decode_slice(RV34DecContext *r, int end, const uint8_t* buf, int buf_size) -{ - MpegEncContext *s = &r->s; - GetBitContext *gb = &s->gb; - int mb_pos, slice_type; - int res; - - init_get_bits(&r->s.gb, buf, buf_size*8); - res = r->parse_slice_header(r, gb, &r->si); - if(res < 0){ - av_log(s->avctx, AV_LOG_ERROR, "Incorrect or unknown slice header\n"); - return -1; - } - - slice_type = r->si.type ? r->si.type : AV_PICTURE_TYPE_I; - if (slice_type != s->pict_type) { - av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n"); - return AVERROR_INVALIDDATA; - } - if (s->width != r->si.width || s->height != r->si.height) { - av_log(s->avctx, AV_LOG_ERROR, "Size mismatch\n"); - return AVERROR_INVALIDDATA; - } - - r->si.end = end; - s->qscale = r->si.quant; - s->mb_num_left = r->si.end - r->si.start; - r->s.mb_skip_run = 0; - - mb_pos = s->mb_x + s->mb_y * s->mb_width; - if(r->si.start != mb_pos){ - av_log(s->avctx, AV_LOG_ERROR, "Slice indicates MB offset %d, got %d\n", r->si.start, mb_pos); - s->mb_x = r->si.start % s->mb_width; - s->mb_y = r->si.start / s->mb_width; - } - memset(r->intra_types_hist, -1, r->intra_types_stride * 4 * 2 * sizeof(*r->intra_types_hist)); - s->first_slice_line = 1; - s->resync_mb_x = s->mb_x; - s->resync_mb_y = s->mb_y; - - ff_init_block_index(s); - while(!check_slice_end(r, s)) { - ff_update_block_index(s); - - if(r->si.type) - res = rv34_decode_inter_macroblock(r, r->intra_types + s->mb_x * 4 + 4); - else - res = rv34_decode_intra_macroblock(r, r->intra_types + s->mb_x * 4 + 4); - if(res < 0){ - ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_ERROR); - return -1; - } - if (++s->mb_x == s->mb_width) { - s->mb_x = 0; - s->mb_y++; - ff_init_block_index(s); - - memmove(r->intra_types_hist, r->intra_types, r->intra_types_stride * 4 * sizeof(*r->intra_types_hist)); - memset(r->intra_types, -1, r->intra_types_stride * 4 * sizeof(*r->intra_types_hist)); - - if(r->loop_filter && s->mb_y >= 2) - r->loop_filter(r, s->mb_y - 2); - - if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) - ff_thread_report_progress(&s->current_picture_ptr->tf, - s->mb_y - 2, 0); - - } - if(s->mb_x == s->resync_mb_x) - s->first_slice_line=0; - s->mb_num_left--; - } - ff_er_add_slice(&s->er, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_END); - - return s->mb_y == s->mb_height; -} - -/** @} */ // recons group end - -/** - * Initialize decoder. - */ -av_cold int ff_rv34_decode_init(AVCodecContext *avctx) -{ - RV34DecContext *r = avctx->priv_data; - MpegEncContext *s = &r->s; - int ret; - - ff_MPV_decode_defaults(s); - s->avctx = avctx; - s->out_format = FMT_H263; - s->codec_id = avctx->codec_id; - - s->width = avctx->width; - s->height = avctx->height; - - r->s.avctx = avctx; - avctx->flags |= CODEC_FLAG_EMU_EDGE; - r->s.flags |= CODEC_FLAG_EMU_EDGE; - avctx->pix_fmt = AV_PIX_FMT_YUV420P; - avctx->has_b_frames = 1; - s->low_delay = 0; - - if ((ret = ff_MPV_common_init(s)) < 0) - return ret; - - ff_h264_pred_init(&r->h, AV_CODEC_ID_RV40, 8, 1); - -#if CONFIG_RV30_DECODER - if (avctx->codec_id == AV_CODEC_ID_RV30) - ff_rv30dsp_init(&r->rdsp); -#endif -#if CONFIG_RV40_DECODER - if (avctx->codec_id == AV_CODEC_ID_RV40) - ff_rv40dsp_init(&r->rdsp); -#endif - - if ((ret = rv34_decoder_alloc(r)) < 0) - return ret; - - if(!intra_vlcs[0].cbppattern[0].bits) - rv34_init_tables(); - - avctx->internal->allocate_progress = 1; - - return 0; -} - -int ff_rv34_decode_init_thread_copy(AVCodecContext *avctx) -{ - int err; - RV34DecContext *r = avctx->priv_data; - - r->s.avctx = avctx; - - if (avctx->internal->is_copy) { - r->tmp_b_block_base = NULL; - if ((err = ff_MPV_common_init(&r->s)) < 0) - return err; - if ((err = rv34_decoder_alloc(r)) < 0) - return err; - } - - return 0; -} - -int ff_rv34_decode_update_thread_context(AVCodecContext *dst, const AVCodecContext *src) -{ - RV34DecContext *r = dst->priv_data, *r1 = src->priv_data; - MpegEncContext * const s = &r->s, * const s1 = &r1->s; - int err; - - if (dst == src || !s1->context_initialized) - return 0; - - if (s->height != s1->height || s->width != s1->width) { - s->height = s1->height; - s->width = s1->width; - if ((err = ff_MPV_common_frame_size_change(s)) < 0) - return err; - if ((err = rv34_decoder_realloc(r)) < 0) - return err; - } - - if ((err = ff_mpeg_update_thread_context(dst, src))) - return err; - - r->cur_pts = r1->cur_pts; - r->last_pts = r1->last_pts; - r->next_pts = r1->next_pts; - - memset(&r->si, 0, sizeof(r->si)); - - return 0; -} - -static int get_slice_offset(AVCodecContext *avctx, const uint8_t *buf, int n) -{ - if(avctx->slice_count) return avctx->slice_offset[n]; - else return AV_RL32(buf + n*8 - 4) == 1 ? AV_RL32(buf + n*8) : AV_RB32(buf + n*8); -} - -static int finish_frame(AVCodecContext *avctx, AVFrame *pict) -{ - RV34DecContext *r = avctx->priv_data; - MpegEncContext *s = &r->s; - int got_picture = 0, ret; - - ff_er_frame_end(&s->er); - ff_MPV_frame_end(s); - s->mb_num_left = 0; - - if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) - ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0); - - if (s->pict_type == AV_PICTURE_TYPE_B || s->low_delay) { - if ((ret = av_frame_ref(pict, &s->current_picture_ptr->f)) < 0) - return ret; - ff_print_debug_info(s, s->current_picture_ptr, pict); - ff_mpv_export_qp_table(s, pict, s->current_picture_ptr, FF_QSCALE_TYPE_MPEG1); - got_picture = 1; - } else if (s->last_picture_ptr != NULL) { - if ((ret = av_frame_ref(pict, &s->last_picture_ptr->f)) < 0) - return ret; - ff_print_debug_info(s, s->last_picture_ptr, pict); - ff_mpv_export_qp_table(s, pict, s->last_picture_ptr, FF_QSCALE_TYPE_MPEG1); - got_picture = 1; - } - - return got_picture; -} - -static AVRational update_sar(int old_w, int old_h, AVRational sar, int new_w, int new_h) -{ - // attempt to keep aspect during typical resolution switches - if (!sar.num) - sar = (AVRational){1, 1}; - - sar = av_mul_q(sar, (AVRational){new_h * old_w, new_w * old_h}); - return sar; -} - -int ff_rv34_decode_frame(AVCodecContext *avctx, - void *data, int *got_picture_ptr, - AVPacket *avpkt) -{ - const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; - RV34DecContext *r = avctx->priv_data; - MpegEncContext *s = &r->s; - AVFrame *pict = data; - SliceInfo si; - int i, ret; - int slice_count; - const uint8_t *slices_hdr = NULL; - int last = 0; - - /* no supplementary picture */ - if (buf_size == 0) { - /* special case for last picture */ - if (s->low_delay==0 && s->next_picture_ptr) { - if ((ret = av_frame_ref(pict, &s->next_picture_ptr->f)) < 0) - return ret; - s->next_picture_ptr = NULL; - - *got_picture_ptr = 1; - } - return 0; - } - - if(!avctx->slice_count){ - slice_count = (*buf++) + 1; - slices_hdr = buf + 4; - buf += 8 * slice_count; - buf_size -= 1 + 8 * slice_count; - }else - slice_count = avctx->slice_count; - - //parse first slice header to check whether this frame can be decoded - if(get_slice_offset(avctx, slices_hdr, 0) < 0 || - get_slice_offset(avctx, slices_hdr, 0) > buf_size){ - av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); - return AVERROR_INVALIDDATA; - } - init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, 0), (buf_size-get_slice_offset(avctx, slices_hdr, 0))*8); - if(r->parse_slice_header(r, &r->s.gb, &si) < 0 || si.start){ - av_log(avctx, AV_LOG_ERROR, "First slice header is incorrect\n"); - return AVERROR_INVALIDDATA; - } - if ((!s->last_picture_ptr || !s->last_picture_ptr->f.data[0]) && - si.type == AV_PICTURE_TYPE_B) { - av_log(avctx, AV_LOG_ERROR, "Invalid decoder state: B-frame without " - "reference data.\n"); - return AVERROR_INVALIDDATA; - } - if( (avctx->skip_frame >= AVDISCARD_NONREF && si.type==AV_PICTURE_TYPE_B) - || (avctx->skip_frame >= AVDISCARD_NONKEY && si.type!=AV_PICTURE_TYPE_I) - || avctx->skip_frame >= AVDISCARD_ALL) - return avpkt->size; - - /* first slice */ - if (si.start == 0) { - if (s->mb_num_left > 0) { - av_log(avctx, AV_LOG_ERROR, "New frame but still %d MB left.\n", - s->mb_num_left); - ff_er_frame_end(&s->er); - ff_MPV_frame_end(s); - } - - if (s->width != si.width || s->height != si.height) { - int err; - - av_log(s->avctx, AV_LOG_WARNING, "Changing dimensions to %dx%d\n", - si.width, si.height); - - if (av_image_check_size(si.width, si.height, 0, s->avctx)) - return AVERROR_INVALIDDATA; - - s->avctx->sample_aspect_ratio = update_sar( - s->width, s->height, s->avctx->sample_aspect_ratio, - si.width, si.height); - s->width = si.width; - s->height = si.height; - avcodec_set_dimensions(s->avctx, s->width, s->height); - if ((err = ff_MPV_common_frame_size_change(s)) < 0) - return err; - if ((err = rv34_decoder_realloc(r)) < 0) - return err; - } - s->pict_type = si.type ? si.type : AV_PICTURE_TYPE_I; - if (ff_MPV_frame_start(s, s->avctx) < 0) - return -1; - ff_mpeg_er_frame_start(s); - if (!r->tmp_b_block_base) { - int i; - - r->tmp_b_block_base = av_malloc(s->linesize * 48); - for (i = 0; i < 2; i++) - r->tmp_b_block_y[i] = r->tmp_b_block_base - + i * 16 * s->linesize; - for (i = 0; i < 4; i++) - r->tmp_b_block_uv[i] = r->tmp_b_block_base + 32 * s->linesize - + (i >> 1) * 8 * s->uvlinesize - + (i & 1) * 16; - } - r->cur_pts = si.pts; - if (s->pict_type != AV_PICTURE_TYPE_B) { - r->last_pts = r->next_pts; - r->next_pts = r->cur_pts; - } else { - int refdist = GET_PTS_DIFF(r->next_pts, r->last_pts); - int dist0 = GET_PTS_DIFF(r->cur_pts, r->last_pts); - int dist1 = GET_PTS_DIFF(r->next_pts, r->cur_pts); - - if(!refdist){ - r->mv_weight1 = r->mv_weight2 = r->weight1 = r->weight2 = 8192; - r->scaled_weight = 0; - }else{ - r->mv_weight1 = (dist0 << 14) / refdist; - r->mv_weight2 = (dist1 << 14) / refdist; - if((r->mv_weight1|r->mv_weight2) & 511){ - r->weight1 = r->mv_weight1; - r->weight2 = r->mv_weight2; - r->scaled_weight = 0; - }else{ - r->weight1 = r->mv_weight1 >> 9; - r->weight2 = r->mv_weight2 >> 9; - r->scaled_weight = 1; - } - } - } - s->mb_x = s->mb_y = 0; - ff_thread_finish_setup(s->avctx); - } else if (HAVE_THREADS && - (s->avctx->active_thread_type & FF_THREAD_FRAME)) { - av_log(s->avctx, AV_LOG_ERROR, "Decoder needs full frames in frame " - "multithreading mode (start MB is %d).\n", si.start); - return AVERROR_INVALIDDATA; - } - - for(i = 0; i < slice_count; i++){ - int offset = get_slice_offset(avctx, slices_hdr, i); - int size; - if(i+1 == slice_count) - size = buf_size - offset; - else - size = get_slice_offset(avctx, slices_hdr, i+1) - offset; - - if(offset < 0 || offset > buf_size){ - av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); - break; - } - - r->si.end = s->mb_width * s->mb_height; - s->mb_num_left = r->s.mb_x + r->s.mb_y*r->s.mb_width - r->si.start; - - if(i+1 < slice_count){ - if (get_slice_offset(avctx, slices_hdr, i+1) < 0 || - get_slice_offset(avctx, slices_hdr, i+1) > buf_size) { - av_log(avctx, AV_LOG_ERROR, "Slice offset is invalid\n"); - break; - } - init_get_bits(&s->gb, buf+get_slice_offset(avctx, slices_hdr, i+1), (buf_size-get_slice_offset(avctx, slices_hdr, i+1))*8); - if(r->parse_slice_header(r, &r->s.gb, &si) < 0){ - if(i+2 < slice_count) - size = get_slice_offset(avctx, slices_hdr, i+2) - offset; - else - size = buf_size - offset; - }else - r->si.end = si.start; - } - if (size < 0 || size > buf_size - offset) { - av_log(avctx, AV_LOG_ERROR, "Slice size is invalid\n"); - break; - } - last = rv34_decode_slice(r, r->si.end, buf + offset, size); - if(last) - break; - } - - if (s->current_picture_ptr) { - if (last) { - if(r->loop_filter) - r->loop_filter(r, s->mb_height - 1); - - ret = finish_frame(avctx, pict); - if (ret < 0) - return ret; - *got_picture_ptr = ret; - } else if (HAVE_THREADS && - (s->avctx->active_thread_type & FF_THREAD_FRAME)) { - av_log(avctx, AV_LOG_INFO, "marking unfished frame as finished\n"); - /* always mark the current frame as finished, frame-mt supports - * only complete frames */ - ff_er_frame_end(&s->er); - ff_MPV_frame_end(s); - s->mb_num_left = 0; - ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0); - return AVERROR_INVALIDDATA; - } - } - - return avpkt->size; -} - -av_cold int ff_rv34_decode_end(AVCodecContext *avctx) -{ - RV34DecContext *r = avctx->priv_data; - - ff_MPV_common_end(&r->s); - rv34_decoder_free(r); - - return 0; -} |