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Diffstat (limited to 'contrib/ffmpeg/libavcodec/vp56.h')
-rw-r--r--contrib/ffmpeg/libavcodec/vp56.h253
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diff --git a/contrib/ffmpeg/libavcodec/vp56.h b/contrib/ffmpeg/libavcodec/vp56.h
deleted file mode 100644
index fb8bbba6f..000000000
--- a/contrib/ffmpeg/libavcodec/vp56.h
+++ /dev/null
@@ -1,253 +0,0 @@
-/**
- * @file vp56.h
- * VP5 and VP6 compatible video decoder (common features)
- *
- * Copyright (C) 2006 Aurelien Jacobs <aurel@gnuage.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 St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef VP56_H
-#define VP56_H
-
-#include "vp56data.h"
-#include "dsputil.h"
-#include "mpegvideo.h"
-
-
-typedef struct vp56_context vp56_context_t;
-typedef struct vp56_mv vp56_mv_t;
-
-typedef void (*vp56_parse_vector_adjustment_t)(vp56_context_t *s,
- vp56_mv_t *vect);
-typedef int (*vp56_adjust_t)(int v, int t);
-typedef void (*vp56_filter_t)(vp56_context_t *s, uint8_t *dst, uint8_t *src,
- int offset1, int offset2, int stride,
- vp56_mv_t mv, int mask, int select, int luma);
-typedef void (*vp56_parse_coeff_t)(vp56_context_t *s);
-typedef void (*vp56_default_models_init_t)(vp56_context_t *s);
-typedef void (*vp56_parse_vector_models_t)(vp56_context_t *s);
-typedef void (*vp56_parse_coeff_models_t)(vp56_context_t *s);
-typedef int (*vp56_parse_header_t)(vp56_context_t *s, uint8_t *buf,
- int buf_size, int *golden_frame);
-
-typedef struct {
- int high;
- int bits;
- const uint8_t *buffer;
- unsigned long code_word;
-} vp56_range_coder_t;
-
-typedef struct {
- uint8_t not_null_dc;
- vp56_frame_t ref_frame;
- DCTELEM dc_coeff;
-} vp56_ref_dc_t;
-
-struct vp56_mv {
- int x;
- int y;
-};
-
-typedef struct {
- uint8_t type;
- vp56_mv_t mv;
-} vp56_macroblock_t;
-
-struct vp56_context {
- AVCodecContext *avctx;
- DSPContext dsp;
- ScanTable scantable;
- AVFrame frames[3];
- AVFrame *framep[4];
- uint8_t *edge_emu_buffer_alloc;
- uint8_t *edge_emu_buffer;
- vp56_range_coder_t c;
- vp56_range_coder_t cc;
- vp56_range_coder_t *ccp;
- int sub_version;
-
- /* frame info */
- int plane_width[3];
- int plane_height[3];
- int mb_width; /* number of horizontal MB */
- int mb_height; /* number of vertical MB */
- int block_offset[6];
-
- int quantizer;
- uint16_t dequant_dc;
- uint16_t dequant_ac;
-
- /* DC predictors management */
- vp56_ref_dc_t *above_blocks;
- vp56_ref_dc_t left_block[4];
- int above_block_idx[6];
- DCTELEM prev_dc[3][3]; /* [plan][ref_frame] */
-
- /* blocks / macroblock */
- vp56_mb_t mb_type;
- vp56_macroblock_t *macroblocks;
- DECLARE_ALIGNED_16(DCTELEM, block_coeff[6][64]);
- uint8_t coeff_reorder[64]; /* used in vp6 only */
- uint8_t coeff_index_to_pos[64]; /* used in vp6 only */
-
- /* motion vectors */
- vp56_mv_t mv[6]; /* vectors for each block in MB */
- vp56_mv_t vector_candidate[2];
- int vector_candidate_pos;
-
- /* filtering hints */
- int filter_header; /* used in vp6 only */
- int deblock_filtering;
- int filter_selection;
- int filter_mode;
- int max_vector_length;
- int sample_variance_threshold;
-
- /* AC models */
- uint8_t vector_model_sig[2]; /* delta sign */
- uint8_t vector_model_dct[2]; /* delta coding types */
- uint8_t vector_model_pdi[2][2]; /* predefined delta init */
- uint8_t vector_model_pdv[2][7]; /* predefined delta values */
- uint8_t vector_model_fdv[2][8]; /* 8 bit delta value definition */
- uint8_t mb_type_model[3][10][10]; /* model for decoding MB type */
- uint8_t coeff_model_dccv[2][11]; /* DC coeff value */
- uint8_t coeff_model_ract[2][3][6][11]; /* Run/AC coding type and AC coeff value */
- uint8_t coeff_model_acct[2][3][3][6][5];/* vp5 only AC coding type for coding group < 3 */
- uint8_t coeff_model_dcct[2][36][5]; /* DC coeff coding type */
- uint8_t coeff_model_runv[2][14]; /* run value (vp6 only) */
- uint8_t mb_types_stats[3][10][2]; /* contextual, next MB type stats */
- uint8_t coeff_ctx[4][64]; /* used in vp5 only */
- uint8_t coeff_ctx_last[4]; /* used in vp5 only */
-
- /* upside-down flipping hints */
- int flip; /* are we flipping ? */
- int frbi; /* first row block index in MB */
- int srbi; /* second row block index in MB */
- int stride[3]; /* stride for each plan */
-
- const uint8_t *vp56_coord_div;
- vp56_parse_vector_adjustment_t parse_vector_adjustment;
- vp56_adjust_t adjust;
- vp56_filter_t filter;
- vp56_parse_coeff_t parse_coeff;
- vp56_default_models_init_t default_models_init;
- vp56_parse_vector_models_t parse_vector_models;
- vp56_parse_coeff_models_t parse_coeff_models;
- vp56_parse_header_t parse_header;
-};
-
-
-void vp56_init(vp56_context_t *s, AVCodecContext *avctx, int flip);
-int vp56_free(AVCodecContext *avctx);
-void vp56_init_dequant(vp56_context_t *s, int quantizer);
-int vp56_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
- uint8_t *buf, int buf_size);
-
-
-/**
- * vp56 specific range coder implementation
- */
-
-static inline void vp56_init_range_decoder(vp56_range_coder_t *c,
- const uint8_t *buf, int buf_size)
-{
- c->high = 255;
- c->bits = 8;
- c->buffer = buf;
- c->code_word = *c->buffer++ << 8;
- c->code_word |= *c->buffer++;
-}
-
-static inline int vp56_rac_get_prob(vp56_range_coder_t *c, uint8_t prob)
-{
- unsigned int low = 1 + (((c->high - 1) * prob) / 256);
- unsigned int low_shift = low << 8;
- int bit = c->code_word >= low_shift;
-
- if (bit) {
- c->high -= low;
- c->code_word -= low_shift;
- } else {
- c->high = low;
- }
-
- /* normalize */
- while (c->high < 128) {
- c->high <<= 1;
- c->code_word <<= 1;
- if (--c->bits == 0) {
- c->bits = 8;
- c->code_word |= *c->buffer++;
- }
- }
- return bit;
-}
-
-static inline int vp56_rac_get(vp56_range_coder_t *c)
-{
- /* equiprobable */
- int low = (c->high + 1) >> 1;
- unsigned int low_shift = low << 8;
- int bit = c->code_word >= low_shift;
- if (bit) {
- c->high = (c->high - low) << 1;
- c->code_word -= low_shift;
- } else {
- c->high = low << 1;
- }
-
- /* normalize */
- c->code_word <<= 1;
- if (--c->bits == 0) {
- c->bits = 8;
- c->code_word |= *c->buffer++;
- }
- return bit;
-}
-
-static inline int vp56_rac_gets(vp56_range_coder_t *c, int bits)
-{
- int value = 0;
-
- while (bits--) {
- value = (value << 1) | vp56_rac_get(c);
- }
-
- return value;
-}
-
-static inline int vp56_rac_gets_nn(vp56_range_coder_t *c, int bits)
-{
- int v = vp56_rac_gets(c, 7) << 1;
- return v + !v;
-}
-
-static inline int vp56_rac_get_tree(vp56_range_coder_t *c,
- const vp56_tree_t *tree,
- const uint8_t *probs)
-{
- while (tree->val > 0) {
- if (vp56_rac_get_prob(c, probs[tree->prob_idx]))
- tree += tree->val;
- else
- tree++;
- }
- return -tree->val;
-}
-
-#endif /* VP56_H */
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