diff options
Diffstat (limited to 'encoder/ime.h')
| -rw-r--r-- | encoder/ime.h | 139 |
1 files changed, 4 insertions, 135 deletions
diff --git a/encoder/ime.h b/encoder/ime.h index f035e9e..9876724 100644 --- a/encoder/ime.h +++ b/encoder/ime.h @@ -23,7 +23,7 @@ * ime.h * * @brief - * Contains declarations of global variables for H264 encoder + * Contains declarations of me functions * * @author * Ittiam @@ -33,8 +33,8 @@ ******************************************************************************* */ -#ifndef IME_H_ -#define IME_H_ +#ifndef _IME_H_ +#define _IME_H_ /*****************************************************************************/ /* Constant Macros */ @@ -51,148 +51,17 @@ /* Extern Function Declarations */ /*****************************************************************************/ - -/** -******************************************************************************* -* -* @brief Diamond Search -* -* @par Description: -* This function computes the sad at vertices of several layers of diamond grid -* at a time. The number of layers of diamond grid that would be evaluated is -* configurable.The function computes the sad at vertices of a diamond grid. If -* the sad at the center of the diamond grid is lesser than the sad at any other -* point of the diamond grid, the function marks the candidate Mb partition as -* mv. -* -* @param[in] ps_mb_part -* pointer to current mb partition ctxt with respect to ME -* -* @param[in] ps_me_ctxt -* pointer to me context -* -* @param[in] u4_lambda -* lambda motion -* -* @param[in] u4_fast_flag -* enable/disable fast sad computation -* -* @returns mv pair & corresponding distortion and cost -* -* @remarks This module cannot be part of the final product due to its lack of -* computational feasibility. This is only for quality eval purposes. -* -******************************************************************************* - */ extern void ime_diamond_search_16x16(me_ctxt_t *ps_me_ctxt, WORD32 i4_reflist); - -/** -******************************************************************************* -* -* @brief This function computes the best motion vector among the tentative mv -* candidates chosen. -* -* @par Description: -* This function determines the position in the search window at which the motion -* estimation should begin in order to minimise the number of search iterations. -* -* @param[in] ps_mb_part -* pointer to current mb partition ctxt with respect to ME -* -* @param[in] u4_lambda_motion -* lambda motion -* -* @param[in] u4_fast_flag -* enable/disable fast sad computation -* -* @returns mv pair & corresponding distortion and cost -* -* @remarks none -* -******************************************************************************* -*/ extern void ime_evaluate_init_srchposn_16x16(me_ctxt_t *ps_me_ctxt, WORD32 i4_reflist); -/** -******************************************************************************* -* -* @brief Searches for the best matching full pixel predictor within the search -* range -* -* @par Description: -* This function begins by computing the mv predict vector for the current mb. -* This is used for cost computations. Further basing on the algo. chosen, it -* looks through a set of candidate vectors that best represent the mb a least -* cost and returns this information. -* -* @param[in] ps_proc -* pointer to current proc ctxt -* -* @param[in] ps_me_ctxt -* pointer to me context -* -* @returns mv pair & corresponding distortion and cost -* -* @remarks none -* -******************************************************************************* -*/ extern void ime_full_pel_motion_estimation_16x16(me_ctxt_t *ps_me_ctxt, WORD32 i4_ref_list); -/** -******************************************************************************* -* -* @brief Searches for the best matching sub pixel predictor within the search -* range -* -* @par Description: -* This function begins by searching across all sub pixel sample points -* around the full pel motion vector. The vector with least cost is chosen as -* the mv for the current mb. If the skip mode is not evaluated while analysing -* the initial search candidates then analyse it here and update the mv. -* -* @param[in] ps_proc -* pointer to current proc ctxt -* -* @param[in] ps_me_ctxt -* pointer to me context -* -* @returns none -* -* @remarks none -* -******************************************************************************* -*/ extern void ime_sub_pel_motion_estimation_16x16(me_ctxt_t *ps_me_ctxt, WORD32 i4_reflist); -/** -******************************************************************************* -* -* @brief This function computes cost of skip macroblocks -* -* @par Description: -* -* @param[in] ps_me_ctxt -* pointer to me ctxt -* -* @param[in] ps_skip_mv -* pointer to skip mv -* - @param[in] is_slice_type_b -* Whether slice type is BSLICE or not - -* @returns none -* -* @remarks -* NOTE: while computing the skip cost, do not enable early exit from compute -* sad function because, a negative bias gets added later -* -******************************************************************************* -*/ extern void ime_compute_skip_cost(me_ctxt_t *ps_me_ctxt, ime_mv_t *ps_skip_mv, mb_part_ctxt *ps_smb_part_info, @@ -201,4 +70,4 @@ extern void ime_compute_skip_cost(me_ctxt_t *ps_me_ctxt, WORD32 is_slice_type_b); -#endif /* IME_H_ */ +#endif /* _IME_H_ */ |