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/******************************************************************************
*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
/**
******************************************************************************
* @file
* ih264e_cavlc.h
*
* @brief
* This file contains enumerations, macros and extern declarations of H264
* cavlc tables
*
* @author
* ittiam
*
* @remarks
* none
******************************************************************************
*/
#ifndef IH264E_CAVLC_H_
#define IH264E_CAVLC_H_
/*****************************************************************************/
/* Function macro definitions */
/*****************************************************************************/
#define PARSE_COEFF_DATA_BLOCK_4x4(pv_mb_coeff_data, ps_mb_coeff_data, u4_nnz, u4_sig_coeff_map, pi2_res_block) \
{\
ps_mb_coeff_data = pv_mb_coeff_data; \
u4_nnz = ps_mb_coeff_data->i4_sig_map_nnz & 0xff; \
if (u4_nnz)\
{\
u4_sig_coeff_map = ps_mb_coeff_data->i4_sig_map_nnz >> 16; \
pi2_res_block = ps_mb_coeff_data->ai2_residue; \
pv_mb_coeff_data = ps_mb_coeff_data->ai2_residue + ALIGN2(u4_nnz); \
}\
else\
{\
pv_mb_coeff_data = ps_mb_coeff_data->ai2_residue;\
}\
}
/*****************************************************************************/
/* Extern Function Declarations */
/*****************************************************************************/
/**
*******************************************************************************
*
* @brief
* This function generates CAVLC coded bit stream for an Intra Slice.
*
* @description
* The mb syntax layer for intra slices constitutes luma mb mode, luma sub modes
* (if present), mb qp delta, coded block pattern, chroma mb mode and
* luma/chroma residue. These syntax elements are written as directed by table
* 7.3.5 of h264 specification.
*
* @param[in] ps_ent_ctxt
* pointer to entropy context
*
* @returns error code
*
* @remarks none
*
*******************************************************************************
*/
IH264E_ERROR_T ih264e_write_islice_mb(entropy_ctxt_t *ps_ent_ctxt);
/**
*******************************************************************************
*
* @brief
* This function generates CAVLC coded bit stream for Inter slices
*
* @description
* The mb syntax layer for inter slices constitutes luma mb mode, luma sub modes
* (if present), mb qp delta, coded block pattern, chroma mb mode and
* luma/chroma residue. These syntax elements are written as directed by table
* 7.3.5 of h264 specification
*
* @param[in] ps_ent_ctxt
* pointer to entropy context
*
* @returns error code
*
* @remarks none
*
*******************************************************************************
*/
IH264E_ERROR_T ih264e_write_pslice_mb(entropy_ctxt_t *ps_ent_ctxt);
#endif /* IH264E_CAVLC_H_ */
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