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Diffstat (limited to 'ffmpeg1/libavcodec/bink.c')
| -rw-r--r-- | ffmpeg1/libavcodec/bink.c | 1344 |
1 files changed, 0 insertions, 1344 deletions
diff --git a/ffmpeg1/libavcodec/bink.c b/ffmpeg1/libavcodec/bink.c deleted file mode 100644 index 9bab4b9..0000000 --- a/ffmpeg1/libavcodec/bink.c +++ /dev/null @@ -1,1344 +0,0 @@ -/* - * Bink video decoder - * Copyright (c) 2009 Konstantin Shishkov - * Copyright (C) 2011 Peter Ross <pross@xvid.org> - * - * 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 - */ - -#include "libavutil/imgutils.h" -#include "libavutil/internal.h" -#include "avcodec.h" -#include "dsputil.h" -#include "binkdata.h" -#include "binkdsp.h" -#include "hpeldsp.h" -#include "internal.h" -#include "mathops.h" - -#define BITSTREAM_READER_LE -#include "get_bits.h" - -#define BINK_FLAG_ALPHA 0x00100000 -#define BINK_FLAG_GRAY 0x00020000 - -static VLC bink_trees[16]; - -/** - * IDs for different data types used in old version of Bink video codec - */ -enum OldSources { - BINKB_SRC_BLOCK_TYPES = 0, ///< 8x8 block types - BINKB_SRC_COLORS, ///< pixel values used for different block types - BINKB_SRC_PATTERN, ///< 8-bit values for 2-colour pattern fill - BINKB_SRC_X_OFF, ///< X components of motion value - BINKB_SRC_Y_OFF, ///< Y components of motion value - BINKB_SRC_INTRA_DC, ///< DC values for intrablocks with DCT - BINKB_SRC_INTER_DC, ///< DC values for interblocks with DCT - BINKB_SRC_INTRA_Q, ///< quantizer values for intrablocks with DCT - BINKB_SRC_INTER_Q, ///< quantizer values for interblocks with DCT - BINKB_SRC_INTER_COEFS, ///< number of coefficients for residue blocks - - BINKB_NB_SRC -}; - -static const int binkb_bundle_sizes[BINKB_NB_SRC] = { - 4, 8, 8, 5, 5, 11, 11, 4, 4, 7 -}; - -static const int binkb_bundle_signed[BINKB_NB_SRC] = { - 0, 0, 0, 1, 1, 0, 1, 0, 0, 0 -}; - -static int32_t binkb_intra_quant[16][64]; -static int32_t binkb_inter_quant[16][64]; - -/** - * IDs for different data types used in Bink video codec - */ -enum Sources { - BINK_SRC_BLOCK_TYPES = 0, ///< 8x8 block types - BINK_SRC_SUB_BLOCK_TYPES, ///< 16x16 block types (a subset of 8x8 block types) - BINK_SRC_COLORS, ///< pixel values used for different block types - BINK_SRC_PATTERN, ///< 8-bit values for 2-colour pattern fill - BINK_SRC_X_OFF, ///< X components of motion value - BINK_SRC_Y_OFF, ///< Y components of motion value - BINK_SRC_INTRA_DC, ///< DC values for intrablocks with DCT - BINK_SRC_INTER_DC, ///< DC values for interblocks with DCT - BINK_SRC_RUN, ///< run lengths for special fill block - - BINK_NB_SRC -}; - -/** - * data needed to decode 4-bit Huffman-coded value - */ -typedef struct Tree { - int vlc_num; ///< tree number (in bink_trees[]) - uint8_t syms[16]; ///< leaf value to symbol mapping -} Tree; - -#define GET_HUFF(gb, tree) (tree).syms[get_vlc2(gb, bink_trees[(tree).vlc_num].table,\ - bink_trees[(tree).vlc_num].bits, 1)] - -/** - * data structure used for decoding single Bink data type - */ -typedef struct Bundle { - int len; ///< length of number of entries to decode (in bits) - Tree tree; ///< Huffman tree-related data - uint8_t *data; ///< buffer for decoded symbols - uint8_t *data_end; ///< buffer end - uint8_t *cur_dec; ///< pointer to the not yet decoded part of the buffer - uint8_t *cur_ptr; ///< pointer to the data that is not read from buffer yet -} Bundle; - -/* - * Decoder context - */ -typedef struct BinkContext { - AVCodecContext *avctx; - DSPContext dsp; - HpelDSPContext hdsp; - BinkDSPContext bdsp; - AVFrame *last; - int version; ///< internal Bink file version - int has_alpha; - int swap_planes; - - Bundle bundle[BINKB_NB_SRC]; ///< bundles for decoding all data types - Tree col_high[16]; ///< trees for decoding high nibble in "colours" data type - int col_lastval; ///< value of last decoded high nibble in "colours" data type -} BinkContext; - -/** - * Bink video block types - */ -enum BlockTypes { - SKIP_BLOCK = 0, ///< skipped block - SCALED_BLOCK, ///< block has size 16x16 - MOTION_BLOCK, ///< block is copied from previous frame with some offset - RUN_BLOCK, ///< block is composed from runs of colours with custom scan order - RESIDUE_BLOCK, ///< motion block with some difference added - INTRA_BLOCK, ///< intra DCT block - FILL_BLOCK, ///< block is filled with single colour - INTER_BLOCK, ///< motion block with DCT applied to the difference - PATTERN_BLOCK, ///< block is filled with two colours following custom pattern - RAW_BLOCK, ///< uncoded 8x8 block -}; - -/** - * Initialize length length in all bundles. - * - * @param c decoder context - * @param width plane width - * @param bw plane width in 8x8 blocks - */ -static void init_lengths(BinkContext *c, int width, int bw) -{ - width = FFALIGN(width, 8); - - c->bundle[BINK_SRC_BLOCK_TYPES].len = av_log2((width >> 3) + 511) + 1; - - c->bundle[BINK_SRC_SUB_BLOCK_TYPES].len = av_log2((width >> 4) + 511) + 1; - - c->bundle[BINK_SRC_COLORS].len = av_log2(bw*64 + 511) + 1; - - c->bundle[BINK_SRC_INTRA_DC].len = - c->bundle[BINK_SRC_INTER_DC].len = - c->bundle[BINK_SRC_X_OFF].len = - c->bundle[BINK_SRC_Y_OFF].len = av_log2((width >> 3) + 511) + 1; - - c->bundle[BINK_SRC_PATTERN].len = av_log2((bw << 3) + 511) + 1; - - c->bundle[BINK_SRC_RUN].len = av_log2(bw*48 + 511) + 1; -} - -/** - * Allocate memory for bundles. - * - * @param c decoder context - */ -static av_cold int init_bundles(BinkContext *c) -{ - int bw, bh, blocks; - int i; - - bw = (c->avctx->width + 7) >> 3; - bh = (c->avctx->height + 7) >> 3; - blocks = bw * bh; - - for (i = 0; i < BINKB_NB_SRC; i++) { - c->bundle[i].data = av_malloc(blocks * 64); - if (!c->bundle[i].data) - return AVERROR(ENOMEM); - c->bundle[i].data_end = c->bundle[i].data + blocks * 64; - } - - return 0; -} - -/** - * Free memory used by bundles. - * - * @param c decoder context - */ -static av_cold void free_bundles(BinkContext *c) -{ - int i; - for (i = 0; i < BINKB_NB_SRC; i++) - av_freep(&c->bundle[i].data); -} - -/** - * Merge two consequent lists of equal size depending on bits read. - * - * @param gb context for reading bits - * @param dst buffer where merged list will be written to - * @param src pointer to the head of the first list (the second lists starts at src+size) - * @param size input lists size - */ -static void merge(GetBitContext *gb, uint8_t *dst, uint8_t *src, int size) -{ - uint8_t *src2 = src + size; - int size2 = size; - - do { - if (!get_bits1(gb)) { - *dst++ = *src++; - size--; - } else { - *dst++ = *src2++; - size2--; - } - } while (size && size2); - - while (size--) - *dst++ = *src++; - while (size2--) - *dst++ = *src2++; -} - -/** - * Read information about Huffman tree used to decode data. - * - * @param gb context for reading bits - * @param tree pointer for storing tree data - */ -static void read_tree(GetBitContext *gb, Tree *tree) -{ - uint8_t tmp1[16] = { 0 }, tmp2[16], *in = tmp1, *out = tmp2; - int i, t, len; - - tree->vlc_num = get_bits(gb, 4); - if (!tree->vlc_num) { - for (i = 0; i < 16; i++) - tree->syms[i] = i; - return; - } - if (get_bits1(gb)) { - len = get_bits(gb, 3); - for (i = 0; i <= len; i++) { - tree->syms[i] = get_bits(gb, 4); - tmp1[tree->syms[i]] = 1; - } - for (i = 0; i < 16 && len < 16 - 1; i++) - if (!tmp1[i]) - tree->syms[++len] = i; - } else { - len = get_bits(gb, 2); - for (i = 0; i < 16; i++) - in[i] = i; - for (i = 0; i <= len; i++) { - int size = 1 << i; - for (t = 0; t < 16; t += size << 1) - merge(gb, out + t, in + t, size); - FFSWAP(uint8_t*, in, out); - } - memcpy(tree->syms, in, 16); - } -} - -/** - * Prepare bundle for decoding data. - * - * @param gb context for reading bits - * @param c decoder context - * @param bundle_num number of the bundle to initialize - */ -static void read_bundle(GetBitContext *gb, BinkContext *c, int bundle_num) -{ - int i; - - if (bundle_num == BINK_SRC_COLORS) { - for (i = 0; i < 16; i++) - read_tree(gb, &c->col_high[i]); - c->col_lastval = 0; - } - if (bundle_num != BINK_SRC_INTRA_DC && bundle_num != BINK_SRC_INTER_DC) - read_tree(gb, &c->bundle[bundle_num].tree); - c->bundle[bundle_num].cur_dec = - c->bundle[bundle_num].cur_ptr = c->bundle[bundle_num].data; -} - -/** - * common check before starting decoding bundle data - * - * @param gb context for reading bits - * @param b bundle - * @param t variable where number of elements to decode will be stored - */ -#define CHECK_READ_VAL(gb, b, t) \ - if (!b->cur_dec || (b->cur_dec > b->cur_ptr)) \ - return 0; \ - t = get_bits(gb, b->len); \ - if (!t) { \ - b->cur_dec = NULL; \ - return 0; \ - } \ - -static int read_runs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b) -{ - int t, v; - const uint8_t *dec_end; - - CHECK_READ_VAL(gb, b, t); - dec_end = b->cur_dec + t; - if (dec_end > b->data_end) { - av_log(avctx, AV_LOG_ERROR, "Run value went out of bounds\n"); - return AVERROR_INVALIDDATA; - } - if (get_bits1(gb)) { - v = get_bits(gb, 4); - memset(b->cur_dec, v, t); - b->cur_dec += t; - } else { - while (b->cur_dec < dec_end) - *b->cur_dec++ = GET_HUFF(gb, b->tree); - } - return 0; -} - -static int read_motion_values(AVCodecContext *avctx, GetBitContext *gb, Bundle *b) -{ - int t, sign, v; - const uint8_t *dec_end; - - CHECK_READ_VAL(gb, b, t); - dec_end = b->cur_dec + t; - if (dec_end > b->data_end) { - av_log(avctx, AV_LOG_ERROR, "Too many motion values\n"); - return AVERROR_INVALIDDATA; - } - if (get_bits1(gb)) { - v = get_bits(gb, 4); - if (v) { - sign = -get_bits1(gb); - v = (v ^ sign) - sign; - } - memset(b->cur_dec, v, t); - b->cur_dec += t; - } else { - while (b->cur_dec < dec_end) { - v = GET_HUFF(gb, b->tree); - if (v) { - sign = -get_bits1(gb); - v = (v ^ sign) - sign; - } - *b->cur_dec++ = v; - } - } - return 0; -} - -static const uint8_t bink_rlelens[4] = { 4, 8, 12, 32 }; - -static int read_block_types(AVCodecContext *avctx, GetBitContext *gb, Bundle *b) -{ - int t, v; - int last = 0; - const uint8_t *dec_end; - - CHECK_READ_VAL(gb, b, t); - dec_end = b->cur_dec + t; - if (dec_end > b->data_end) { - av_log(avctx, AV_LOG_ERROR, "Too many block type values\n"); - return AVERROR_INVALIDDATA; - } - if (get_bits1(gb)) { - v = get_bits(gb, 4); - memset(b->cur_dec, v, t); - b->cur_dec += t; - } else { - while (b->cur_dec < dec_end) { - v = GET_HUFF(gb, b->tree); - if (v < 12) { - last = v; - *b->cur_dec++ = v; - } else { - int run = bink_rlelens[v - 12]; - - if (dec_end - b->cur_dec < run) - return AVERROR_INVALIDDATA; - memset(b->cur_dec, last, run); - b->cur_dec += run; - } - } - } - return 0; -} - -static int read_patterns(AVCodecContext *avctx, GetBitContext *gb, Bundle *b) -{ - int t, v; - const uint8_t *dec_end; - - CHECK_READ_VAL(gb, b, t); - dec_end = b->cur_dec + t; - if (dec_end > b->data_end) { - av_log(avctx, AV_LOG_ERROR, "Too many pattern values\n"); - return AVERROR_INVALIDDATA; - } - while (b->cur_dec < dec_end) { - v = GET_HUFF(gb, b->tree); - v |= GET_HUFF(gb, b->tree) << 4; - *b->cur_dec++ = v; - } - - return 0; -} - -static int read_colors(GetBitContext *gb, Bundle *b, BinkContext *c) -{ - int t, sign, v; - const uint8_t *dec_end; - - CHECK_READ_VAL(gb, b, t); - dec_end = b->cur_dec + t; - if (dec_end > b->data_end) { - av_log(c->avctx, AV_LOG_ERROR, "Too many color values\n"); - return AVERROR_INVALIDDATA; - } - if (get_bits1(gb)) { - c->col_lastval = GET_HUFF(gb, c->col_high[c->col_lastval]); - v = GET_HUFF(gb, b->tree); - v = (c->col_lastval << 4) | v; - if (c->version < 'i') { - sign = ((int8_t) v) >> 7; - v = ((v & 0x7F) ^ sign) - sign; - v += 0x80; - } - memset(b->cur_dec, v, t); - b->cur_dec += t; - } else { - while (b->cur_dec < dec_end) { - c->col_lastval = GET_HUFF(gb, c->col_high[c->col_lastval]); - v = GET_HUFF(gb, b->tree); - v = (c->col_lastval << 4) | v; - if (c->version < 'i') { - sign = ((int8_t) v) >> 7; - v = ((v & 0x7F) ^ sign) - sign; - v += 0x80; - } - *b->cur_dec++ = v; - } - } - return 0; -} - -/** number of bits used to store first DC value in bundle */ -#define DC_START_BITS 11 - -static int read_dcs(AVCodecContext *avctx, GetBitContext *gb, Bundle *b, - int start_bits, int has_sign) -{ - int i, j, len, len2, bsize, sign, v, v2; - int16_t *dst = (int16_t*)b->cur_dec; - int16_t *dst_end = (int16_t*)b->data_end; - - CHECK_READ_VAL(gb, b, len); - v = get_bits(gb, start_bits - has_sign); - if (v && has_sign) { - sign = -get_bits1(gb); - v = (v ^ sign) - sign; - } - if (dst_end - dst < 1) - return AVERROR_INVALIDDATA; - *dst++ = v; - len--; - for (i = 0; i < len; i += 8) { - len2 = FFMIN(len - i, 8); - if (dst_end - dst < len2) - return AVERROR_INVALIDDATA; - bsize = get_bits(gb, 4); - if (bsize) { - for (j = 0; j < len2; j++) { - v2 = get_bits(gb, bsize); - if (v2) { - sign = -get_bits1(gb); - v2 = (v2 ^ sign) - sign; - } - v += v2; - *dst++ = v; - if (v < -32768 || v > 32767) { - av_log(avctx, AV_LOG_ERROR, "DC value went out of bounds: %d\n", v); - return AVERROR_INVALIDDATA; - } - } - } else { - for (j = 0; j < len2; j++) - *dst++ = v; - } - } - - b->cur_dec = (uint8_t*)dst; - return 0; -} - -/** - * Retrieve next value from bundle. - * - * @param c decoder context - * @param bundle bundle number - */ -static inline int get_value(BinkContext *c, int bundle) -{ - int ret; - - if (bundle < BINK_SRC_X_OFF || bundle == BINK_SRC_RUN) - return *c->bundle[bundle].cur_ptr++; - if (bundle == BINK_SRC_X_OFF || bundle == BINK_SRC_Y_OFF) - return (int8_t)*c->bundle[bundle].cur_ptr++; - ret = *(int16_t*)c->bundle[bundle].cur_ptr; - c->bundle[bundle].cur_ptr += 2; - return ret; -} - -static void binkb_init_bundle(BinkContext *c, int bundle_num) -{ - c->bundle[bundle_num].cur_dec = - c->bundle[bundle_num].cur_ptr = c->bundle[bundle_num].data; - c->bundle[bundle_num].len = 13; -} - -static void binkb_init_bundles(BinkContext *c) -{ - int i; - for (i = 0; i < BINKB_NB_SRC; i++) - binkb_init_bundle(c, i); -} - -static int binkb_read_bundle(BinkContext *c, GetBitContext *gb, int bundle_num) -{ - const int bits = binkb_bundle_sizes[bundle_num]; - const int mask = 1 << (bits - 1); - const int issigned = binkb_bundle_signed[bundle_num]; - Bundle *b = &c->bundle[bundle_num]; - int i, len; - - CHECK_READ_VAL(gb, b, len); - if (b->data_end - b->cur_dec < len * (1 + (bits > 8))) - return AVERROR_INVALIDDATA; - if (bits <= 8) { - if (!issigned) { - for (i = 0; i < len; i++) - *b->cur_dec++ = get_bits(gb, bits); - } else { - for (i = 0; i < len; i++) - *b->cur_dec++ = get_bits(gb, bits) - mask; - } - } else { - int16_t *dst = (int16_t*)b->cur_dec; - - if (!issigned) { - for (i = 0; i < len; i++) - *dst++ = get_bits(gb, bits); - } else { - for (i = 0; i < len; i++) - *dst++ = get_bits(gb, bits) - mask; - } - b->cur_dec = (uint8_t*)dst; - } - return 0; -} - -static inline int binkb_get_value(BinkContext *c, int bundle_num) -{ - int16_t ret; - const int bits = binkb_bundle_sizes[bundle_num]; - - if (bits <= 8) { - int val = *c->bundle[bundle_num].cur_ptr++; - return binkb_bundle_signed[bundle_num] ? (int8_t)val : val; - } - ret = *(int16_t*)c->bundle[bundle_num].cur_ptr; - c->bundle[bundle_num].cur_ptr += 2; - return ret; -} - -/** - * Read 8x8 block of DCT coefficients. - * - * @param gb context for reading bits - * @param block place for storing coefficients - * @param scan scan order table - * @param quant_matrices quantization matrices - * @return 0 for success, negative value in other cases - */ -static int read_dct_coeffs(GetBitContext *gb, int32_t block[64], const uint8_t *scan, - const int32_t quant_matrices[16][64], int q) -{ - int coef_list[128]; - int mode_list[128]; - int i, t, bits, ccoef, mode, sign; - int list_start = 64, list_end = 64, list_pos; - int coef_count = 0; - int coef_idx[64]; - int quant_idx; - const int32_t *quant; - - coef_list[list_end] = 4; mode_list[list_end++] = 0; - coef_list[list_end] = 24; mode_list[list_end++] = 0; - coef_list[list_end] = 44; mode_list[list_end++] = 0; - coef_list[list_end] = 1; mode_list[list_end++] = 3; - coef_list[list_end] = 2; mode_list[list_end++] = 3; - coef_list[list_end] = 3; mode_list[list_end++] = 3; - - for (bits = get_bits(gb, 4) - 1; bits >= 0; bits--) { - list_pos = list_start; - while (list_pos < list_end) { - if (!(mode_list[list_pos] | coef_list[list_pos]) || !get_bits1(gb)) { - list_pos++; - continue; - } - ccoef = coef_list[list_pos]; - mode = mode_list[list_pos]; - switch (mode) { - case 0: - coef_list[list_pos] = ccoef + 4; - mode_list[list_pos] = 1; - case 2: - if (mode == 2) { - coef_list[list_pos] = 0; - mode_list[list_pos++] = 0; - } - for (i = 0; i < 4; i++, ccoef++) { - if (get_bits1(gb)) { - coef_list[--list_start] = ccoef; - mode_list[ list_start] = 3; - } else { - if (!bits) { - t = 1 - (get_bits1(gb) << 1); - } else { - t = get_bits(gb, bits) | 1 << bits; - sign = -get_bits1(gb); - t = (t ^ sign) - sign; - } - block[scan[ccoef]] = t; - coef_idx[coef_count++] = ccoef; - } - } - break; - case 1: - mode_list[list_pos] = 2; - for (i = 0; i < 3; i++) { - ccoef += 4; - coef_list[list_end] = ccoef; - mode_list[list_end++] = 2; - } - break; - case 3: - if (!bits) { - t = 1 - (get_bits1(gb) << 1); - } else { - t = get_bits(gb, bits) | 1 << bits; - sign = -get_bits1(gb); - t = (t ^ sign) - sign; - } - block[scan[ccoef]] = t; - coef_idx[coef_count++] = ccoef; - coef_list[list_pos] = 0; - mode_list[list_pos++] = 0; - break; - } - } - } - - if (q == -1) { - quant_idx = get_bits(gb, 4); - } else { - quant_idx = q; - if (quant_idx > 15U) { - av_log(NULL, AV_LOG_ERROR, "quant_index %d out of range\n", quant_idx); - return AVERROR_INVALIDDATA; - } - } - - quant = quant_matrices[quant_idx]; - - block[0] = (block[0] * quant[0]) >> 11; - for (i = 0; i < coef_count; i++) { - int idx = coef_idx[i]; - block[scan[idx]] = (block[scan[idx]] * quant[idx]) >> 11; - } - - return 0; -} - -/** - * Read 8x8 block with residue after motion compensation. - * - * @param gb context for reading bits - * @param block place to store read data - * @param masks_count number of masks to decode - * @return 0 on success, negative value in other cases - */ -static int read_residue(GetBitContext *gb, int16_t block[64], int masks_count) -{ - int coef_list[128]; - int mode_list[128]; - int i, sign, mask, ccoef, mode; - int list_start = 64, list_end = 64, list_pos; - int nz_coeff[64]; - int nz_coeff_count = 0; - - coef_list[list_end] = 4; mode_list[list_end++] = 0; - coef_list[list_end] = 24; mode_list[list_end++] = 0; - coef_list[list_end] = 44; mode_list[list_end++] = 0; - coef_list[list_end] = 0; mode_list[list_end++] = 2; - - for (mask = 1 << get_bits(gb, 3); mask; mask >>= 1) { - for (i = 0; i < nz_coeff_count; i++) { - if (!get_bits1(gb)) - continue; - if (block[nz_coeff[i]] < 0) - block[nz_coeff[i]] -= mask; - else - block[nz_coeff[i]] += mask; - masks_count--; - if (masks_count < 0) - return 0; - } - list_pos = list_start; - while (list_pos < list_end) { - if (!(coef_list[list_pos] | mode_list[list_pos]) || !get_bits1(gb)) { - list_pos++; - continue; - } - ccoef = coef_list[list_pos]; - mode = mode_list[list_pos]; - switch (mode) { - case 0: - coef_list[list_pos] = ccoef + 4; - mode_list[list_pos] = 1; - case 2: - if (mode == 2) { - coef_list[list_pos] = 0; - mode_list[list_pos++] = 0; - } - for (i = 0; i < 4; i++, ccoef++) { - if (get_bits1(gb)) { - coef_list[--list_start] = ccoef; - mode_list[ list_start] = 3; - } else { - nz_coeff[nz_coeff_count++] = bink_scan[ccoef]; - sign = -get_bits1(gb); - block[bink_scan[ccoef]] = (mask ^ sign) - sign; - masks_count--; - if (masks_count < 0) - return 0; - } - } - break; - case 1: - mode_list[list_pos] = 2; - for (i = 0; i < 3; i++) { - ccoef += 4; - coef_list[list_end] = ccoef; - mode_list[list_end++] = 2; - } - break; - case 3: - nz_coeff[nz_coeff_count++] = bink_scan[ccoef]; - sign = -get_bits1(gb); - block[bink_scan[ccoef]] = (mask ^ sign) - sign; - coef_list[list_pos] = 0; - mode_list[list_pos++] = 0; - masks_count--; - if (masks_count < 0) - return 0; - break; - } - } - } - - return 0; -} - -/** - * Copy 8x8 block from source to destination, where src and dst may be overlapped - */ -static inline void put_pixels8x8_overlapped(uint8_t *dst, uint8_t *src, int stride) -{ - uint8_t tmp[64]; - int i; - for (i = 0; i < 8; i++) - memcpy(tmp + i*8, src + i*stride, 8); - for (i = 0; i < 8; i++) - memcpy(dst + i*stride, tmp + i*8, 8); -} - -static int binkb_decode_plane(BinkContext *c, AVFrame *frame, GetBitContext *gb, - int plane_idx, int is_key, int is_chroma) -{ - int blk, ret; - int i, j, bx, by; - uint8_t *dst, *ref, *ref_start, *ref_end; - int v, col[2]; - const uint8_t *scan; - int xoff, yoff; - LOCAL_ALIGNED_16(int16_t, block, [64]); - LOCAL_ALIGNED_16(int32_t, dctblock, [64]); - int coordmap[64]; - int ybias = is_key ? -15 : 0; - int qp; - - const int stride = frame->linesize[plane_idx]; - int bw = is_chroma ? (c->avctx->width + 15) >> 4 : (c->avctx->width + 7) >> 3; - int bh = is_chroma ? (c->avctx->height + 15) >> 4 : (c->avctx->height + 7) >> 3; - - binkb_init_bundles(c); - ref_start = frame->data[plane_idx]; - ref_end = frame->data[plane_idx] + (bh * frame->linesize[plane_idx] + bw) * 8; - - for (i = 0; i < 64; i++) - coordmap[i] = (i & 7) + (i >> 3) * stride; - - for (by = 0; by < bh; by++) { - for (i = 0; i < BINKB_NB_SRC; i++) { - if ((ret = binkb_read_bundle(c, gb, i)) < 0) - return ret; - } - - dst = frame->data[plane_idx] + 8*by*stride; - for (bx = 0; bx < bw; bx++, dst += 8) { - blk = binkb_get_value(c, BINKB_SRC_BLOCK_TYPES); - switch (blk) { - case 0: - break; - case 1: - scan = bink_patterns[get_bits(gb, 4)]; - i = 0; - do { - int mode, run; - - mode = get_bits1(gb); - run = get_bits(gb, binkb_runbits[i]) + 1; - - i += run; - if (i > 64) { - av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n"); - return AVERROR_INVALIDDATA; - } - if (mode) { - v = binkb_get_value(c, BINKB_SRC_COLORS); - for (j = 0; j < run; j++) - dst[coordmap[*scan++]] = v; - } else { - for (j = 0; j < run; j++) - dst[coordmap[*scan++]] = binkb_get_value(c, BINKB_SRC_COLORS); - } - } while (i < 63); - if (i == 63) - dst[coordmap[*scan++]] = binkb_get_value(c, BINKB_SRC_COLORS); - break; - case 2: - memset(dctblock, 0, sizeof(*dctblock) * 64); - dctblock[0] = binkb_get_value(c, BINKB_SRC_INTRA_DC); - qp = binkb_get_value(c, BINKB_SRC_INTRA_Q); - read_dct_coeffs(gb, dctblock, bink_scan, (const int32_t (*)[64])binkb_intra_quant, qp); - c->bdsp.idct_put(dst, stride, dctblock); - break; - case 3: - xoff = binkb_get_value(c, BINKB_SRC_X_OFF); - yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias; - ref = dst + xoff + yoff * stride; - if (ref < ref_start || ref + 8*stride > ref_end) { - av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n"); - } else if (ref + 8*stride < dst || ref >= dst + 8*stride) { - c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8); - } else { - put_pixels8x8_overlapped(dst, ref, stride); - } - c->dsp.clear_block(block); - v = binkb_get_value(c, BINKB_SRC_INTER_COEFS); - read_residue(gb, block, v); - c->dsp.add_pixels8(dst, block, stride); - break; - case 4: - xoff = binkb_get_value(c, BINKB_SRC_X_OFF); - yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias; - ref = dst + xoff + yoff * stride; - if (ref < ref_start || ref + 8 * stride > ref_end) { - av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n"); - } else if (ref + 8*stride < dst || ref >= dst + 8*stride) { - c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8); - } else { - put_pixels8x8_overlapped(dst, ref, stride); - } - memset(dctblock, 0, sizeof(*dctblock) * 64); - dctblock[0] = binkb_get_value(c, BINKB_SRC_INTER_DC); - qp = binkb_get_value(c, BINKB_SRC_INTER_Q); - read_dct_coeffs(gb, dctblock, bink_scan, (const int32_t (*)[64])binkb_inter_quant, qp); - c->bdsp.idct_add(dst, stride, dctblock); - break; - case 5: - v = binkb_get_value(c, BINKB_SRC_COLORS); - c->dsp.fill_block_tab[1](dst, v, stride, 8); - break; - case 6: - for (i = 0; i < 2; i++) - col[i] = binkb_get_value(c, BINKB_SRC_COLORS); - for (i = 0; i < 8; i++) { - v = binkb_get_value(c, BINKB_SRC_PATTERN); - for (j = 0; j < 8; j++, v >>= 1) - dst[i*stride + j] = col[v & 1]; - } - break; - case 7: - xoff = binkb_get_value(c, BINKB_SRC_X_OFF); - yoff = binkb_get_value(c, BINKB_SRC_Y_OFF) + ybias; - ref = dst + xoff + yoff * stride; - if (ref < ref_start || ref + 8 * stride > ref_end) { - av_log(c->avctx, AV_LOG_WARNING, "Reference block is out of bounds\n"); - } else if (ref + 8*stride < dst || ref >= dst + 8*stride) { - c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8); - } else { - put_pixels8x8_overlapped(dst, ref, stride); - } - break; - case 8: - for (i = 0; i < 8; i++) - memcpy(dst + i*stride, c->bundle[BINKB_SRC_COLORS].cur_ptr + i*8, 8); - c->bundle[BINKB_SRC_COLORS].cur_ptr += 64; - break; - default: - av_log(c->avctx, AV_LOG_ERROR, "Unknown block type %d\n", blk); - return AVERROR_INVALIDDATA; - } - } - } - if (get_bits_count(gb) & 0x1F) //next plane data starts at 32-bit boundary - skip_bits_long(gb, 32 - (get_bits_count(gb) & 0x1F)); - - return 0; -} - -static int bink_decode_plane(BinkContext *c, AVFrame *frame, GetBitContext *gb, - int plane_idx, int is_chroma) -{ - int blk, ret; - int i, j, bx, by; - uint8_t *dst, *prev, *ref, *ref_start, *ref_end; - int v, col[2]; - const uint8_t *scan; - int xoff, yoff; - LOCAL_ALIGNED_16(int16_t, block, [64]); - LOCAL_ALIGNED_16(uint8_t, ublock, [64]); - LOCAL_ALIGNED_16(int32_t, dctblock, [64]); - int coordmap[64]; - - const int stride = frame->linesize[plane_idx]; - int bw = is_chroma ? (c->avctx->width + 15) >> 4 : (c->avctx->width + 7) >> 3; - int bh = is_chroma ? (c->avctx->height + 15) >> 4 : (c->avctx->height + 7) >> 3; - int width = c->avctx->width >> is_chroma; - - init_lengths(c, FFMAX(width, 8), bw); - for (i = 0; i < BINK_NB_SRC; i++) - read_bundle(gb, c, i); - - ref_start = c->last->data[plane_idx] ? c->last->data[plane_idx] - : frame->data[plane_idx]; - ref_end = ref_start - + (bw - 1 + c->last->linesize[plane_idx] * (bh - 1)) * 8; - - for (i = 0; i < 64; i++) - coordmap[i] = (i & 7) + (i >> 3) * stride; - - for (by = 0; by < bh; by++) { - if ((ret = read_block_types(c->avctx, gb, &c->bundle[BINK_SRC_BLOCK_TYPES])) < 0) - return ret; - if ((ret = read_block_types(c->avctx, gb, &c->bundle[BINK_SRC_SUB_BLOCK_TYPES])) < 0) - return ret; - if ((ret = read_colors(gb, &c->bundle[BINK_SRC_COLORS], c)) < 0) - return ret; - if ((ret = read_patterns(c->avctx, gb, &c->bundle[BINK_SRC_PATTERN])) < 0) - return ret; - if ((ret = read_motion_values(c->avctx, gb, &c->bundle[BINK_SRC_X_OFF])) < 0) - return ret; - if ((ret = read_motion_values(c->avctx, gb, &c->bundle[BINK_SRC_Y_OFF])) < 0) - return ret; - if ((ret = read_dcs(c->avctx, gb, &c->bundle[BINK_SRC_INTRA_DC], DC_START_BITS, 0)) < 0) - return ret; - if ((ret = read_dcs(c->avctx, gb, &c->bundle[BINK_SRC_INTER_DC], DC_START_BITS, 1)) < 0) - return ret; - if ((ret = read_runs(c->avctx, gb, &c->bundle[BINK_SRC_RUN])) < 0) - return ret; - - if (by == bh) - break; - dst = frame->data[plane_idx] + 8*by*stride; - prev = (c->last->data[plane_idx] ? c->last->data[plane_idx] - : frame->data[plane_idx]) + 8*by*stride; - for (bx = 0; bx < bw; bx++, dst += 8, prev += 8) { - blk = get_value(c, BINK_SRC_BLOCK_TYPES); - // 16x16 block type on odd line means part of the already decoded block, so skip it - if ((by & 1) && blk == SCALED_BLOCK) { - bx++; - dst += 8; - prev += 8; - continue; - } - switch (blk) { - case SKIP_BLOCK: - c->hdsp.put_pixels_tab[1][0](dst, prev, stride, 8); - break; - case SCALED_BLOCK: - blk = get_value(c, BINK_SRC_SUB_BLOCK_TYPES); - switch (blk) { - case RUN_BLOCK: - scan = bink_patterns[get_bits(gb, 4)]; - i = 0; - do { - int run = get_value(c, BINK_SRC_RUN) + 1; - - i += run; - if (i > 64) { - av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n"); - return AVERROR_INVALIDDATA; - } - if (get_bits1(gb)) { - v = get_value(c, BINK_SRC_COLORS); - for (j = 0; j < run; j++) - ublock[*scan++] = v; - } else { - for (j = 0; j < run; j++) - ublock[*scan++] = get_value(c, BINK_SRC_COLORS); - } - } while (i < 63); - if (i == 63) - ublock[*scan++] = get_value(c, BINK_SRC_COLORS); - break; - case INTRA_BLOCK: - memset(dctblock, 0, sizeof(*dctblock) * 64); - dctblock[0] = get_value(c, BINK_SRC_INTRA_DC); - read_dct_coeffs(gb, dctblock, bink_scan, bink_intra_quant, -1); - c->bdsp.idct_put(ublock, 8, dctblock); - break; - case FILL_BLOCK: - v = get_value(c, BINK_SRC_COLORS); - c->dsp.fill_block_tab[0](dst, v, stride, 16); - break; - case PATTERN_BLOCK: - for (i = 0; i < 2; i++) - col[i] = get_value(c, BINK_SRC_COLORS); - for (j = 0; j < 8; j++) { - v = get_value(c, BINK_SRC_PATTERN); - for (i = 0; i < 8; i++, v >>= 1) - ublock[i + j*8] = col[v & 1]; - } - break; - case RAW_BLOCK: - for (j = 0; j < 8; j++) - for (i = 0; i < 8; i++) - ublock[i + j*8] = get_value(c, BINK_SRC_COLORS); - break; - default: - av_log(c->avctx, AV_LOG_ERROR, "Incorrect 16x16 block type %d\n", blk); - return AVERROR_INVALIDDATA; - } - if (blk != FILL_BLOCK) - c->bdsp.scale_block(ublock, dst, stride); - bx++; - dst += 8; - prev += 8; - break; - case MOTION_BLOCK: - xoff = get_value(c, BINK_SRC_X_OFF); - yoff = get_value(c, BINK_SRC_Y_OFF); - ref = prev + xoff + yoff * stride; - if (ref < ref_start || ref > ref_end) { - av_log(c->avctx, AV_LOG_ERROR, "Copy out of bounds @%d, %d\n", - bx*8 + xoff, by*8 + yoff); - return AVERROR_INVALIDDATA; - } - c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8); - break; - case RUN_BLOCK: - scan = bink_patterns[get_bits(gb, 4)]; - i = 0; - do { - int run = get_value(c, BINK_SRC_RUN) + 1; - - i += run; - if (i > 64) { - av_log(c->avctx, AV_LOG_ERROR, "Run went out of bounds\n"); - return AVERROR_INVALIDDATA; - } - if (get_bits1(gb)) { - v = get_value(c, BINK_SRC_COLORS); - for (j = 0; j < run; j++) - dst[coordmap[*scan++]] = v; - } else { - for (j = 0; j < run; j++) - dst[coordmap[*scan++]] = get_value(c, BINK_SRC_COLORS); - } - } while (i < 63); - if (i == 63) - dst[coordmap[*scan++]] = get_value(c, BINK_SRC_COLORS); - break; - case RESIDUE_BLOCK: - xoff = get_value(c, BINK_SRC_X_OFF); - yoff = get_value(c, BINK_SRC_Y_OFF); - ref = prev + xoff + yoff * stride; - if (ref < ref_start || ref > ref_end) { - av_log(c->avctx, AV_LOG_ERROR, "Copy out of bounds @%d, %d\n", - bx*8 + xoff, by*8 + yoff); - return AVERROR_INVALIDDATA; - } - c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8); - c->dsp.clear_block(block); - v = get_bits(gb, 7); - read_residue(gb, block, v); - c->dsp.add_pixels8(dst, block, stride); - break; - case INTRA_BLOCK: - memset(dctblock, 0, sizeof(*dctblock) * 64); - dctblock[0] = get_value(c, BINK_SRC_INTRA_DC); - read_dct_coeffs(gb, dctblock, bink_scan, bink_intra_quant, -1); - c->bdsp.idct_put(dst, stride, dctblock); - break; - case FILL_BLOCK: - v = get_value(c, BINK_SRC_COLORS); - c->dsp.fill_block_tab[1](dst, v, stride, 8); - break; - case INTER_BLOCK: - xoff = get_value(c, BINK_SRC_X_OFF); - yoff = get_value(c, BINK_SRC_Y_OFF); - ref = prev + xoff + yoff * stride; - if (ref < ref_start || ref > ref_end) { - av_log(c->avctx, AV_LOG_ERROR, "Copy out of bounds @%d, %d\n", - bx*8 + xoff, by*8 + yoff); - return -1; - } - c->hdsp.put_pixels_tab[1][0](dst, ref, stride, 8); - memset(dctblock, 0, sizeof(*dctblock) * 64); - dctblock[0] = get_value(c, BINK_SRC_INTER_DC); - read_dct_coeffs(gb, dctblock, bink_scan, bink_inter_quant, -1); - c->bdsp.idct_add(dst, stride, dctblock); - break; - case PATTERN_BLOCK: - for (i = 0; i < 2; i++) - col[i] = get_value(c, BINK_SRC_COLORS); - for (i = 0; i < 8; i++) { - v = get_value(c, BINK_SRC_PATTERN); - for (j = 0; j < 8; j++, v >>= 1) - dst[i*stride + j] = col[v & 1]; - } - break; - case RAW_BLOCK: - for (i = 0; i < 8; i++) - memcpy(dst + i*stride, c->bundle[BINK_SRC_COLORS].cur_ptr + i*8, 8); - c->bundle[BINK_SRC_COLORS].cur_ptr += 64; - break; - default: - av_log(c->avctx, AV_LOG_ERROR, "Unknown block type %d\n", blk); - return AVERROR_INVALIDDATA; - } - } - } - if (get_bits_count(gb) & 0x1F) //next plane data starts at 32-bit boundary - skip_bits_long(gb, 32 - (get_bits_count(gb) & 0x1F)); - - return 0; -} - -static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt) -{ - BinkContext * const c = avctx->priv_data; - AVFrame *frame = data; - GetBitContext gb; - int plane, plane_idx, ret; - int bits_count = pkt->size << 3; - - if (c->version > 'b') { - if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0) - return ret; - } else { - if ((ret = ff_reget_buffer(avctx, c->last)) < 0) - return ret; - if ((ret = av_frame_ref(frame, c->last)) < 0) - return ret; - } - - init_get_bits(&gb, pkt->data, bits_count); - if (c->has_alpha) { - if (c->version >= 'i') - skip_bits_long(&gb, 32); - if ((ret = bink_decode_plane(c, frame, &gb, 3, 0)) < 0) - return ret; - } - if (c->version >= 'i') - skip_bits_long(&gb, 32); - - for (plane = 0; plane < 3; plane++) { - plane_idx = (!plane || !c->swap_planes) ? plane : (plane ^ 3); - - if (c->version > 'b') { - if ((ret = bink_decode_plane(c, frame, &gb, plane_idx, !!plane)) < 0) - return ret; - } else { - if ((ret = binkb_decode_plane(c, frame, &gb, plane_idx, - !avctx->frame_number, !!plane)) < 0) - return ret; - } - if (get_bits_count(&gb) >= bits_count) - break; - } - emms_c(); - - if (c->version > 'b') { - av_frame_unref(c->last); - if ((ret = av_frame_ref(c->last, frame)) < 0) - return ret; - } - - *got_frame = 1; - - /* always report that the buffer was completely consumed */ - return pkt->size; -} - -/** - * Caclulate quantization tables for version b - */ -static av_cold void binkb_calc_quant(void) -{ - uint8_t inv_bink_scan[64]; - static const int s[64]={ - 1073741824,1489322693,1402911301,1262586814,1073741824, 843633538, 581104888, 296244703, - 1489322693,2065749918,1945893874,1751258219,1489322693,1170153332, 806015634, 410903207, - 1402911301,1945893874,1832991949,1649649171,1402911301,1102260336, 759250125, 387062357, - 1262586814,1751258219,1649649171,1484645031,1262586814, 992008094, 683307060, 348346918, - 1073741824,1489322693,1402911301,1262586814,1073741824, 843633538, 581104888, 296244703, - 843633538,1170153332,1102260336, 992008094, 843633538, 662838617, 456571181, 232757969, - 581104888, 806015634, 759250125, 683307060, 581104888, 456571181, 314491699, 160326478, - 296244703, 410903207, 387062357, 348346918, 296244703, 232757969, 160326478, 81733730, - }; - int i, j; -#define C (1LL<<30) - for (i = 0; i < 64; i++) - inv_bink_scan[bink_scan[i]] = i; - - for (j = 0; j < 16; j++) { - for (i = 0; i < 64; i++) { - int k = inv_bink_scan[i]; - binkb_intra_quant[j][k] = binkb_intra_seed[i] * (int64_t)s[i] * - binkb_num[j]/(binkb_den[j] * (C>>12)); - binkb_inter_quant[j][k] = binkb_inter_seed[i] * (int64_t)s[i] * - binkb_num[j]/(binkb_den[j] * (C>>12)); - } - } -} - -static av_cold int decode_init(AVCodecContext *avctx) -{ - BinkContext * const c = avctx->priv_data; - static VLC_TYPE table[16 * 128][2]; - static int binkb_initialised = 0; - int i, ret; - int flags; - - c->version = avctx->codec_tag >> 24; - if (avctx->extradata_size < 4) { - av_log(avctx, AV_LOG_ERROR, "Extradata missing or too short\n"); - return AVERROR_INVALIDDATA; - } - flags = AV_RL32(avctx->extradata); - c->has_alpha = flags & BINK_FLAG_ALPHA; - c->swap_planes = c->version >= 'h'; - if (!bink_trees[15].table) { - for (i = 0; i < 16; i++) { - const int maxbits = bink_tree_lens[i][15]; - bink_trees[i].table = table + i*128; - bink_trees[i].table_allocated = 1 << maxbits; - init_vlc(&bink_trees[i], maxbits, 16, - bink_tree_lens[i], 1, 1, - bink_tree_bits[i], 1, 1, INIT_VLC_USE_NEW_STATIC | INIT_VLC_LE); - } - } - c->avctx = avctx; - - c->last = av_frame_alloc(); - if (!c->last) - return AVERROR(ENOMEM); - - if ((ret = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0) - return ret; - - avctx->pix_fmt = c->has_alpha ? AV_PIX_FMT_YUVA420P : AV_PIX_FMT_YUV420P; - - ff_dsputil_init(&c->dsp, avctx); - ff_hpeldsp_init(&c->hdsp, avctx->flags); - ff_binkdsp_init(&c->bdsp); - - if ((ret = init_bundles(c)) < 0) { - free_bundles(c); - return ret; - } - - if (c->version == 'b') { - if (!binkb_initialised) { - binkb_calc_quant(); - binkb_initialised = 1; - } - } - - return 0; -} - -static av_cold int decode_end(AVCodecContext *avctx) -{ - BinkContext * const c = avctx->priv_data; - - av_frame_free(&c->last); - - free_bundles(c); - return 0; -} - -AVCodec ff_bink_decoder = { - .name = "binkvideo", - .type = AVMEDIA_TYPE_VIDEO, - .id = AV_CODEC_ID_BINKVIDEO, - .priv_data_size = sizeof(BinkContext), - .init = decode_init, - .close = decode_end, - .decode = decode_frame, - .long_name = NULL_IF_CONFIG_SMALL("Bink video"), - .capabilities = CODEC_CAP_DR1, -}; |