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ffmpeg.wasm-core
Commit 149fa0b7 authored by Vittorio Giovara's avatar Vittorio Giovara
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mpegvideo: Move MotionEstContext and function declarations to a separate header

parent b2b76691
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Showing with 130 additions and 87 deletions
libavcodec/motion_est.c
View file @ 149fa0b7
......@@ -34,6 +34,7 @@
#include "avcodec.h"
#include "internal.h"
#include "mathops.h"
#include "motion_est.h"
#include "mpegutils.h"
#include "mpegvideo.h"
......
libavcodec/motion_est.h 0 → 100644
View file @ 149fa0b7
/*
* Motion estimation
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_MOTIONEST_H
#define AVCODEC_MOTIONEST_H
#include <stdint.h>
#include "avcodec.h"
#include "hpeldsp.h"
#include "qpeldsp.h"
struct MpegEncContext;
#define MAX_MV 2048
/**
* Motion estimation context.
*/
typedef struct MotionEstContext {
AVCodecContext *avctx;
int skip; ///< set if ME is skipped for the current MB
int co_located_mv[4][2]; ///< mv from last P-frame for direct mode ME
int direct_basis_mv[4][2];
uint8_t *scratchpad; /**< data area for the ME algo, so that
* the ME does not need to malloc/free. */
uint8_t *best_mb;
uint8_t *temp_mb[2];
uint8_t *temp;
int best_bits;
uint32_t *map; ///< map to avoid duplicate evaluations
uint32_t *score_map; ///< map to store the scores
unsigned map_generation;
int pre_penalty_factor;
int penalty_factor; /**< an estimate of the bits required to
* code a given mv value, e.g. (1,0) takes
* more bits than (0,0). We have to
* estimate whether any reduction in
* residual is worth the extra bits. */
int sub_penalty_factor;
int mb_penalty_factor;
int flags;
int sub_flags;
int mb_flags;
int pre_pass; ///< = 1 for the pre pass
int dia_size;
int xmin;
int xmax;
int ymin;
int ymax;
int pred_x;
int pred_y;
uint8_t *src[4][4];
uint8_t *ref[4][4];
int stride;
int uvstride;
/* temp variables for picture complexity calculation */
int mc_mb_var_sum_temp;
int mb_var_sum_temp;
int scene_change_score;
op_pixels_func(*hpel_put)[4];
op_pixels_func(*hpel_avg)[4];
qpel_mc_func(*qpel_put)[16];
qpel_mc_func(*qpel_avg)[16];
uint8_t (*mv_penalty)[MAX_MV * 2 + 1]; ///< bit amount needed to encode a MV
uint8_t *current_mv_penalty;
int (*sub_motion_search)(struct MpegEncContext *s,
int *mx_ptr, int *my_ptr, int dmin,
int src_index, int ref_index,
int size, int h);
} MotionEstContext;
static inline int ff_h263_round_chroma(int x)
{
//FIXME static or not?
static const uint8_t h263_chroma_roundtab[16] = {
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
};
return h263_chroma_roundtab[x & 0xf] + (x >> 3);
}
int ff_init_me(struct MpegEncContext *s);
void ff_estimate_p_frame_motion(struct MpegEncContext *s, int mb_x, int mb_y);
void ff_estimate_b_frame_motion(struct MpegEncContext *s, int mb_x, int mb_y);
int ff_pre_estimate_p_frame_motion(struct MpegEncContext *s,
int mb_x, int mb_y);
int ff_epzs_motion_search(struct MpegEncContext *s, int *mx_ptr, int *my_ptr,
int P[10][2], int src_index, int ref_index,
int16_t (*last_mv)[2], int ref_mv_scale, int size,
int h);
int ff_get_mb_score(struct MpegEncContext *s, int mx, int my, int src_index,
int ref_index, int size, int h, int add_rate);
int ff_get_best_fcode(struct MpegEncContext *s,
int16_t (*mv_table)[2], int type);
void ff_fix_long_p_mvs(struct MpegEncContext *s);
void ff_fix_long_mvs(struct MpegEncContext *s, uint8_t *field_select_table,
int field_select, int16_t (*mv_table)[2], int f_code,
int type, int truncate);
extern const uint8_t ff_aic_dc_scale_table[32];
extern const uint8_t ff_h263_chroma_qscale_table[32];
#endif /* AVCODEC_MOTIONEST_H */
libavcodec/mpegvideo.h
View file @ 149fa0b7
......@@ -39,6 +39,7 @@
#include "hpeldsp.h"
#include "idctdsp.h"
#include "me_cmp.h"
#include "motion_est.h"
#include "mpegvideodsp.h"
#include "mpegvideoencdsp.h"
#include "pixblockdsp.h"
......@@ -62,7 +63,6 @@ enum OutputFormat {
};
#define MAX_FCODE 7
#define MAX_MV 2048
#define MAX_THREADS 16
......@@ -88,8 +88,6 @@ enum OutputFormat {
#define EXT_START_CODE 0x000001b5
#define USER_START_CODE 0x000001b2
struct MpegEncContext;
/**
* Picture.
*/
......@@ -139,62 +137,6 @@ typedef struct Picture{
int shared;
} Picture;
/**
* Motion estimation context.
*/
typedef struct MotionEstContext{
AVCodecContext *avctx;
int skip; ///< set if ME is skipped for the current MB
int co_located_mv[4][2]; ///< mv from last P-frame for direct mode ME
int direct_basis_mv[4][2];
uint8_t *scratchpad; ///< data area for the ME algo, so that the ME does not need to malloc/free
uint8_t *best_mb;
uint8_t *temp_mb[2];
uint8_t *temp;
int best_bits;
uint32_t *map; ///< map to avoid duplicate evaluations
uint32_t *score_map; ///< map to store the scores
unsigned map_generation;
int pre_penalty_factor;
int penalty_factor; /**< an estimate of the bits required to
code a given mv value, e.g. (1,0) takes
more bits than (0,0). We have to
estimate whether any reduction in
residual is worth the extra bits. */
int sub_penalty_factor;
int mb_penalty_factor;
int flags;
int sub_flags;
int mb_flags;
int pre_pass; ///< = 1 for the pre pass
int dia_size;
int xmin;
int xmax;
int ymin;
int ymax;
int pred_x;
int pred_y;
uint8_t *src[4][4];
uint8_t *ref[4][4];
int stride;
int uvstride;
/* temp variables for picture complexity calculation */
int mc_mb_var_sum_temp;
int mb_var_sum_temp;
int scene_change_score;
/* cmp, chroma_cmp;*/
op_pixels_func (*hpel_put)[4];
op_pixels_func (*hpel_avg)[4];
qpel_mc_func (*qpel_put)[16];
qpel_mc_func (*qpel_avg)[16];
uint8_t (*mv_penalty)[MAX_MV*2+1]; ///< amount of bits needed to encode a MV
uint8_t *current_mv_penalty;
int (*sub_motion_search)(struct MpegEncContext * s,
int *mx_ptr, int *my_ptr, int dmin,
int src_index, int ref_index,
int size, int h);
}MotionEstContext;
/**
* MpegEncContext.
*/
......@@ -792,34 +734,6 @@ static inline int get_bits_diff(MpegEncContext *s){
return bits - last;
}
static inline int ff_h263_round_chroma(int x){
static const uint8_t h263_chroma_roundtab[16] = {
// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1,
};
return h263_chroma_roundtab[x & 0xf] + (x >> 3);
}
/* motion_est.c */
void ff_estimate_p_frame_motion(MpegEncContext * s,
int mb_x, int mb_y);
void ff_estimate_b_frame_motion(MpegEncContext * s,
int mb_x, int mb_y);
int ff_get_best_fcode(MpegEncContext * s, int16_t (*mv_table)[2], int type);
void ff_fix_long_p_mvs(MpegEncContext * s);
void ff_fix_long_mvs(MpegEncContext * s, uint8_t *field_select_table, int field_select,
int16_t (*mv_table)[2], int f_code, int type, int truncate);
int ff_init_me(MpegEncContext *s);
int ff_pre_estimate_p_frame_motion(MpegEncContext * s, int mb_x, int mb_y);
int ff_epzs_motion_search(MpegEncContext * s, int *mx_ptr, int *my_ptr,
int P[10][2], int src_index, int ref_index, int16_t (*last_mv)[2],
int ref_mv_scale, int size, int h);
int ff_get_mb_score(MpegEncContext * s, int mx, int my, int src_index,
int ref_index, int size, int h, int add_rate);
extern const uint8_t ff_aic_dc_scale_table[32];
extern const uint8_t ff_h263_chroma_qscale_table[32];
/* rv10.c */
int ff_rv10_encode_picture_header(MpegEncContext *s, int picture_number);
int ff_rv_decode_dc(MpegEncContext *s, int n);
......
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