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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 Name : irc_cbr_buffer_control.h */
/* */
/* Description : This file contains all the necessary declarations */
/* for cbr_buffer_control functions */
/* */
/* */
/* List of Functions : <List the functions defined in this file> */
/* */
/* Issues / Problems : None */
/* */
/* Revision History : */
/* */
/* DD MM YYYY Author(s) Changes (Describe the changes made) */
/* 06 05 2008 Ittiam Draft */
/* */
/*****************************************************************************/
#ifndef CBR_BUFFER_CONTROL_H
#define CBR_BUFFER_CONTROL_H
/* Macro for clipping a number between to extremes */
#define CLIP(Number,Max,Min) if((Number) > (Max)) (Number) = (Max); \
else if((Number) < (Min)) (Number) = (Min);
/*****************************************************************************/
/* Structure */
/*****************************************************************************/
typedef struct cbr_buffer_t *cbr_buffer_handle;
WORD32 irc_cbr_buffer_num_fill_use_free_memtab(cbr_buffer_handle *pps_cbr_buffer,
itt_memtab_t *ps_memtab,
ITT_FUNC_TYPE_E e_func_type);
/* Initialize the cbr Buffer*/
void irc_init_cbr_buffer(cbr_buffer_handle ps_cbr_buffer,
WORD32 i4_buffer_delay,
WORD32 i4_tgt_frm_rate,
WORD32 *i4_bit_rate,
UWORD32 *u4_num_pics_in_delay_prd,
UWORD32 u4_vbv_buf_size);
/* Check for tgt bits with in CBR buffer*/
WORD32 irc_cbr_buffer_constraint_check(cbr_buffer_handle ps_cbr_buffer,
WORD32 i4_tgt_bits,
picture_type_e e_pic_type);
/* Get the buffer status with the current consumed bits*/
vbv_buf_status_e irc_get_cbr_buffer_status(cbr_buffer_handle ps_cbr_buffer,
WORD32 i4_tot_consumed_bits,
WORD32 *pi4_num_bits_to_prevent_overflow,
picture_type_e e_pic_type);
/* Update the CBR buffer at the end of the VOP*/
void irc_update_cbr_buffer(cbr_buffer_handle ps_cbr_buffer,
WORD32 i4_tot_consumed_bits,
picture_type_e e_pic_type);
/*Get the bits needed to stuff in case of Underflow*/
WORD32 irc_get_cbr_bits_to_stuff(cbr_buffer_handle ps_cbr_buffer,
WORD32 i4_tot_consumed_bits,
picture_type_e e_pic_type);
WORD32 irc_get_cbr_buffer_delay(cbr_buffer_handle ps_cbr_buffer);
WORD32 irc_get_cbr_buffer_size(cbr_buffer_handle ps_cbr_buffer);
WORD32 irc_vbr_stream_buffer_constraint_check(cbr_buffer_handle ps_cbr_buffer,
WORD32 i4_tgt_bits,
picture_type_e e_pic_type);
void irc_change_cbr_vbv_bit_rate(cbr_buffer_handle ps_cbr_buffer,
WORD32 *i4_bit_rate);
void irc_change_cbr_vbv_tgt_frame_rate(cbr_buffer_handle ps_cbr_buffer,
WORD32 i4_tgt_frm_rate);
void irc_change_cbr_vbv_num_pics_in_delay_period(cbr_buffer_handle ps_cbr_buffer,
UWORD32 *u4_num_pics_in_delay_prd);
void irc_change_cbr_buffer_delay(cbr_buffer_handle ps_cbr_buffer,
WORD32 i4_buffer_delay);
#endif /* CBR_BUFFER_CONTROL_H */
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