MotionEstContext Struct Reference

Motion estimation context. More...

#include <mpegvideo.h>


Data Fields

AVCodecContextavctx
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
int map_generation
int pre_penalty_factor
int penalty_factor
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
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]
 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)


Detailed Description

Motion estimation context.

Definition at line 139 of file mpegvideo.h.


Field Documentation

Definition at line 148 of file mpegvideo.h.

Definition at line 145 of file mpegvideo.h.

mv from last P-frame for direct mode ME

Definition at line 142 of file mpegvideo.h.

Referenced by cmp(), and direct_search().

Definition at line 143 of file mpegvideo.h.

Referenced by cmp(), and direct_search().

Definition at line 181 of file mpegvideo.h.

Referenced by cmp(), and ff_init_me().

Definition at line 180 of file mpegvideo.h.

Referenced by cmp(), and ff_init_me().

Definition at line 162 of file mpegvideo.h.

Referenced by ff_get_mb_score(), and ff_init_me().

uint8_t(* MotionEstContext::mv_penalty)[MAX_MV *2+1]

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.

Definition at line 153 of file mpegvideo.h.

Referenced by cmp(), encode_q_branch(), epzs_motion_search2(), epzs_motion_search4(), epzs_motion_search_internal(), ff_estimate_motion_b(), ff_estimate_p_frame_motion(), and hpel_motion_search().

= 1 for the pre pass

Definition at line 163 of file mpegvideo.h.

Referenced by epzs_motion_search_internal(), and pre_estimate_motion_thread().

Definition at line 152 of file mpegvideo.h.

Referenced by epzs_motion_search_internal(), and ff_pre_estimate_p_frame_motion().

uint8_t* MotionEstContext::ref[4][4]

map to store the scores

Definition at line 150 of file mpegvideo.h.

Referenced by common_end(), encode_init(), free_duplicate_context(), init_duplicate_context(), svq1_encode_end(), and svq1_encode_init().

uint8_t* MotionEstContext::src[4][4]

int(* MotionEstContext::sub_motion_search)(struct MpegEncContext *s, int *mx_ptr, int *my_ptr, int dmin, int src_index, int ref_index, int size, int h)

Definition at line 146 of file mpegvideo.h.


The documentation for this struct was generated from the following file:

Generated on Fri Oct 26 02:35:47 2012 for FFmpeg by  doxygen 1.5.8