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104 lines
5.3 KiB
104 lines
5.3 KiB
/****************************************************************************** |
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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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