105 lines
5.3 KiB
C
105 lines
5.3 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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/*****************************************************************************/
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/* */
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/* File Name : irc_cbr_buffer_control.h */
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/* */
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/* Description : This file contains all the necessary declarations */
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/* for cbr_buffer_control functions */
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/* */
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/* */
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/* List of Functions : <List the functions defined in this file> */
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/* */
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/* Issues / Problems : None */
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/* */
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/* Revision History : */
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/* */
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/* DD MM YYYY Author(s) Changes (Describe the changes made) */
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/* 06 05 2008 Ittiam Draft */
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/* */
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/*****************************************************************************/
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#ifndef CBR_BUFFER_CONTROL_H
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#define CBR_BUFFER_CONTROL_H
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/* Macro for clipping a number between to extremes */
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#define CLIP(Number,Max,Min) if((Number) > (Max)) (Number) = (Max); \
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else if((Number) < (Min)) (Number) = (Min);
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/*****************************************************************************/
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/* Structure */
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/*****************************************************************************/
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typedef struct cbr_buffer_t *cbr_buffer_handle;
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WORD32 irc_cbr_buffer_num_fill_use_free_memtab(cbr_buffer_handle *pps_cbr_buffer,
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itt_memtab_t *ps_memtab,
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ITT_FUNC_TYPE_E e_func_type);
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/* Initialize the cbr Buffer*/
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void irc_init_cbr_buffer(cbr_buffer_handle ps_cbr_buffer,
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WORD32 i4_buffer_delay,
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WORD32 i4_tgt_frm_rate,
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WORD32 *i4_bit_rate,
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UWORD32 *u4_num_pics_in_delay_prd,
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UWORD32 u4_vbv_buf_size);
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/* Check for tgt bits with in CBR buffer*/
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WORD32 irc_cbr_buffer_constraint_check(cbr_buffer_handle ps_cbr_buffer,
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WORD32 i4_tgt_bits,
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picture_type_e e_pic_type);
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/* Get the buffer status with the current consumed bits*/
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vbv_buf_status_e irc_get_cbr_buffer_status(cbr_buffer_handle ps_cbr_buffer,
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WORD32 i4_tot_consumed_bits,
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WORD32 *pi4_num_bits_to_prevent_overflow,
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picture_type_e e_pic_type);
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/* Update the CBR buffer at the end of the VOP*/
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void irc_update_cbr_buffer(cbr_buffer_handle ps_cbr_buffer,
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WORD32 i4_tot_consumed_bits,
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picture_type_e e_pic_type);
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/*Get the bits needed to stuff in case of Underflow*/
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WORD32 irc_get_cbr_bits_to_stuff(cbr_buffer_handle ps_cbr_buffer,
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WORD32 i4_tot_consumed_bits,
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picture_type_e e_pic_type);
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WORD32 irc_get_cbr_buffer_delay(cbr_buffer_handle ps_cbr_buffer);
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WORD32 irc_get_cbr_buffer_size(cbr_buffer_handle ps_cbr_buffer);
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WORD32 irc_vbr_stream_buffer_constraint_check(cbr_buffer_handle ps_cbr_buffer,
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WORD32 i4_tgt_bits,
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picture_type_e e_pic_type);
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void irc_change_cbr_vbv_bit_rate(cbr_buffer_handle ps_cbr_buffer,
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WORD32 *i4_bit_rate);
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void irc_change_cbr_vbv_tgt_frame_rate(cbr_buffer_handle ps_cbr_buffer,
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WORD32 i4_tgt_frm_rate);
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void irc_change_cbr_vbv_num_pics_in_delay_period(cbr_buffer_handle ps_cbr_buffer,
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UWORD32 *u4_num_pics_in_delay_prd);
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void irc_change_cbr_buffer_delay(cbr_buffer_handle ps_cbr_buffer,
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WORD32 i4_buffer_delay);
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#endif /* CBR_BUFFER_CONTROL_H */
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