diff options
Diffstat (limited to 'encoder/ih264e_core_coding.c')
| -rw-r--r-- | encoder/ih264e_core_coding.c | 164 |
1 files changed, 83 insertions, 81 deletions
diff --git a/encoder/ih264e_core_coding.c b/encoder/ih264e_core_coding.c index 5b36aef..3d0806f 100644 --- a/encoder/ih264e_core_coding.c +++ b/encoder/ih264e_core_coding.c @@ -19,70 +19,82 @@ */ /** - ******************************************************************************* - * @file - * ih264e_core_coding.c - * - * @brief - * This file contains routines that perform luma and chroma core coding for - * intra macroblocks - * - * @author - * ittiam - * - * @par List of Functions: - * - ih264e_pack_l_mb_i16() - * - ih264e_pack_c_mb_i8() - * - ih264e_code_luma_intra_macroblock_16x16() - * - ih264e_code_luma_intra_macroblock_4x4() - * - ih264e_code_chroma_intra_macroblock_8x8() - * - * @remarks - * None - * - ******************************************************************************* - */ +******************************************************************************* +* @file +* ih264e_core_coding.c +* +* @brief +* This file contains routines that perform luma and chroma core coding of +* H264 macroblocks +* +* @author +* ittiam +* +* @par List of Functions: +* - ih264e_luma_16x16_resi_trans_dctrans_quant +* - ih264e_luma_16x16_idctrans_iquant_itrans_recon +* - ih264e_chroma_8x8_resi_trans_dctrans_quant +* - ih264e_chroma_8x8_idctrans_iquant_itrans_recon +* - ih264e_pack_l_mb_i16 +* - ih264e_pack_l_mb +* - ih264e_pack_c_mb_i8 +* - ih264e_code_luma_intra_macroblock_16x16 +* - ih264e_code_luma_intra_macroblock_4x4 +* - ih264e_code_luma_intra_macroblock_4x4_rdopt_on +* - ih264e_code_chroma_intra_macroblock_8x8 +* - ih264e_code_luma_inter_macroblock_16x16 +* - ih264e_code_chroma_inter_macroblock_8x8 +* +* @remarks +* none +* +******************************************************************************* +*/ /*****************************************************************************/ /* File Includes */ /*****************************************************************************/ -/* System include files */ +/* System Include Files */ #include <stdio.h> #include <string.h> #include <assert.h> -/* User include files */ +/* User Include Files */ #include "ih264e_config.h" #include "ih264_typedefs.h" -#include "ih264_platform_macros.h" #include "iv2.h" #include "ive2.h" + #include "ih264_macros.h" #include "ih264_defs.h" -#include "ih264e_defs.h" -#include "ih264_trans_data.h" -#include "ih264e_error.h" -#include "ih264e_bitstream.h" -#include "ime_distortion_metrics.h" -#include "ime_defs.h" -#include "ime_structs.h" +#include "ih264_mem_fns.h" +#include "ih264_padding.h" #include "ih264_structs.h" #include "ih264_trans_quant_itrans_iquant.h" #include "ih264_inter_pred_filters.h" -#include "ih264_mem_fns.h" -#include "ih264_padding.h" #include "ih264_intra_pred_filters.h" #include "ih264_deblk_edge_filters.h" +#include "ih264_trans_data.h" #include "ih264_cabac_tables.h" +#include "ih264_platform_macros.h" + +#include "ime_defs.h" +#include "ime_distortion_metrics.h" +#include "ime_structs.h" + #include "irc_cntrl_param.h" #include "irc_frame_info_collector.h" + +#include "ih264e_error.h" +#include "ih264e_defs.h" +#include "ih264e_globals.h" #include "ih264e_rate_control.h" +#include "ih264e_bitstream.h" #include "ih264e_cabac_structs.h" #include "ih264e_structs.h" -#include "ih264e_globals.h" -#include "ih264e_core_coding.h" #include "ih264e_mc.h" +#include "ih264e_core_coding.h" /*****************************************************************************/ @@ -222,8 +234,8 @@ void ih264e_luma_16x16_resi_trans_dctrans_quant(codec_t *ps_codec, * * @param[in] pi2_src * Input data, 16x16 size -* First 16 mem locations will have the Dc coffs in rater scan order in linear fashion -* after a stride 1st AC clock will be present again in raster can order +* First 16 mem locations will have the Dc coffs in raster scan order in linear +* fashion after a stride 1st AC clock will be present again in raster can order * Then each AC block of the 16x16 block will follow in raster scan order * * @param[in] pu1_pred @@ -252,17 +264,17 @@ void ih264e_luma_16x16_resi_trans_dctrans_quant(codec_t *ps_codec, * @param[in] qp_div * QP/6 * -* @param[in] pi4_tmp -* Input temporary buffer -* needs to be at least 20 in size -* -* @param[in] pu4_cntrl +* @param[in] u4_cntrl * Controls the transform path * total Last 17 bits are used * the 16th th bit will correspond to DC block * and 32-17 will correspond to the ac blocks in raster scan order * bit equaling zero indicates that the entire 4x4 block is zero for DC -* For AC blocks a bit equaling zero will mean that all 15 AC coffs of the block is nonzero +* For AC blocks a bit equaling zero will mean that all 15 AC coffs of the block +* is nonzero +* +* @param[in] u4_dc_trans_flag +* Differentiates intra vs inter * * @param[in] pi4_tmp * Input temporary buffer @@ -457,7 +469,7 @@ void ih264e_luma_16x16_idctrans_iquant_itrans_recon(codec_t *ps_codec, * @param[in] pred_strd * Prediction stride * -* @param[in] dst_strd +* @param[in] out_strd * Destination stride * * @param[in] pu2_scale_matrix @@ -472,18 +484,13 @@ void ih264e_luma_16x16_idctrans_iquant_itrans_recon(codec_t *ps_codec, * @param[in] u4_round_factor * Round factor for quant * -* @param[out] pu1_nnz +* @param[out] pu1_nnz_c * Memory to store the non-zeros after transform * The first byte will be the nnz od DC block for U plane * From the next byte the AC nnzs will be storerd in raster scan order * The fifth byte will be nnz of Dc block of V plane * Then Ac blocks will follow * -* @param u4_dc_flag -* Signals if Dc transform is to be done or not -* 1 -> Dc transform will be done -* 0 -> Dc transform will not be done -* * @remarks * ******************************************************************************* @@ -547,11 +554,12 @@ void ih264e_chroma_8x8_resi_trans_dctrans_quant(codec_t *ps_codec, /** ******************************************************************************* -* @brief -* This function performs the inverse transform with process for chroma MB of H264 +* @brief Does inverse DC transform, inverse quantization inverse transform for +* chroma MB * * @par Description: -* Does inverse DC transform ,inverse quantization inverse transform +* Does inverse DC transform, inverse quantization inverse transform for +* chroma MB * * @param[in] pi2_src * Input data, 16x16 size @@ -585,22 +593,23 @@ void ih264e_chroma_8x8_resi_trans_dctrans_quant(codec_t *ps_codec, * @param[in] qp_div * QP/6 * -* @param[in] pi4_tmp -* Input temporary buffer -* needs to be at least COFF_CNT_SUB_BLK_4x4 + Number of Dc cofss for chroma * number of planes -* in size -* -* @param[in] pu4_cntrl +* @param[in] u4_cntrl * Controls the transform path -* the 15 th bit will correspond to DC block of U plane , 14th will indicate the V plane Dc block -* 32-28 bits will indicate AC blocks of U plane in raster scan order -* 27-23 bits will indicate AC blocks of V plane in rater scan order +* the 15 th bit will correspond to DC block of U plane, 14th will indicate the +* V plane Dc block. 32-28 bits will indicate AC blocks of U plane in raster +* scan order. 27-23 bits will indicate AC blocks of V plane in rater scan order. * The bit 1 implies that there is at least one non zero coeff in a block * +* @param[in] pi4_tmp +* Input temporary buffer +* needs to be at least COFF_CNT_SUB_BLK_4x4 + (Number of Dc coeffs for chroma * +* number of planes) in size +* * @returns * none * * @remarks +* ******************************************************************************* */ void ih264e_chroma_8x8_idctrans_iquant_itrans_recon(codec_t *ps_codec, @@ -649,8 +658,8 @@ void ih264e_chroma_8x8_idctrans_iquant_itrans_recon(codec_t *ps_codec, if (u4_cntrl & CNTRL_FLAG_DCBLK_MASK_CHROMA) { UWORD32 cntr, u4_dc_cntrl; - /* Do inv hadamard for u an v block */ + /* Do inv hadamard for u an v block */ ps_codec->pf_ihadamard_scaling_2x2_uv(pi2_src, pi2_src, pu2_iscale_mat, pu2_weigh_mat, qp_div, NULL); /* @@ -1085,11 +1094,9 @@ void ih264e_pack_l_mb(WORD16 *pi2_res_mb, /* Decide if the 8x8 unit has to be sent for entropy coding? */ if ((b4+1) % 4 == 0) { - if ( u4_thres_resi && (u4_b8_coeff_cost <= LUMA_SUB_BLOCK_SKIP_THRESHOLD) && - (*u1_cbp_l & (1 << b8)) ) + if (u4_thres_resi && (u4_b8_coeff_cost <= LUMA_SUB_BLOCK_SKIP_THRESHOLD) && + (*u1_cbp_l & (1 << b8))) { - - /* * When we want to reset the full 8x8 block, we have to reset * both the dc and ac coeff bits hence we have the symmetric @@ -1479,7 +1486,6 @@ void ih264e_pack_c_mb(WORD16 *pi2_res_mb, * ******************************************************************************* */ - UWORD8 ih264e_code_luma_intra_macroblock_16x16(process_ctxt_t *ps_proc) { /* Codec Context */ @@ -2091,7 +2097,7 @@ UWORD8 ih264e_code_chroma_intra_macroblock_8x8(process_ctxt_t *ps_proc) /** ******************************************************************************* * -* @brief performs luma core coding when mode is inter +* @brief performs luma core coding when mode is inter * * @par Description: * If the current mb is to be coded as inter the mb is predicted based on the @@ -2103,14 +2109,12 @@ UWORD8 ih264e_code_chroma_intra_macroblock_8x8(process_ctxt_t *ps_proc) * @param[in] ps_proc_ctxt * pointer to the current macro block context * -* @returns u1_cbp_l -* coded block pattern luma +* @returns coded block pattern luma * * @remarks none * ******************************************************************************* */ - UWORD8 ih264e_code_luma_inter_macroblock_16x16(process_ctxt_t *ps_proc) { /* Codec Context */ @@ -2241,18 +2245,16 @@ UWORD8 ih264e_code_luma_inter_macroblock_16x16(process_ctxt_t *ps_proc) * @brief performs chroma core coding for inter macro blocks * * @par Description: -* If the current mb is to be coded as inter predicted mb,based on the sub mb partitions -* and corresponding motion vectors generated by ME ,prediction is done. +* If the current mb is to be coded as inter predicted mb, based on the sub mb +* partitions and corresponding motion vectors generated by ME, prediction is done. * Then, error is computed between the input blk and the estimated blk. -* This error is transformed , quantized. The quantized coefficients -* are packed in scan order for -* entropy coding. +* This error is transformed, quantized. The quantized coefficients +* are packed in scan order for entropy coding. * * @param[in] ps_proc_ctxt * pointer to the current macro block context * -* @returns u1_cbp_l -* coded block pattern chroma +* @returns coded block pattern chroma * * @remarks none * |