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141 lines
5.7 KiB
141 lines
5.7 KiB
/******************************************************************************
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*
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* Copyright (C) 2018 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 cbr_buffer_control.h
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*
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* \brief
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* This file contains all the necessary declarations for
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* cbr_buffer_control functions
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*
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* \date
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* 06/05/2008
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*
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* \author
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* ittiam
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*
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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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/*****************************************************************************/
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/* Macros */
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/*****************************************************************************/
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/* Macro for clipping a number between to extremes */
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#define CLIP(Number, Max, Min) \
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if((Number) > (Max)) \
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(Number) = (Max); \
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else if((Number) < (Min)) \
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(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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/*****************************************************************************/
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/* Function Declarations */
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/*****************************************************************************/
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WORD32 cbr_buffer_num_fill_use_free_memtab(
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cbr_buffer_handle *pps_cbr_buffer, itt_memtab_t *ps_memtab, ITT_FUNC_TYPE_E e_func_type);
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/* Initialize the cbr Buffer*/
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void init_cbr_buffer(
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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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UWORD32 u4_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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UWORD32 u4_intra_frm_int,
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rc_type_e u4_rc_type,
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UWORD32 u4_peak_bit_rate,
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UWORD32 u4_num_frames_in_delay,
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float f_max_peak_rate_dur,
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LWORD64 i8_num_frames_to_encode,
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WORD32 i4_inter_frm_int,
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WORD32 i4_cbr_rc_pass,
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WORD32 i4_capped_vbr_flag);
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/* Check for tgt bits with in CBR buffer*/
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WORD32 cbr_buffer_constraint_check(
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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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WORD32 *pi4_max_tgt_bits,
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WORD32 *pi4_min_tgt_bits);
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/* Get the buffer status with the current consumed bits*/
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vbv_buf_status_e get_cbr_buffer_status(
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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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rc_type_e e_rc_type);
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/* Update the CBR buffer at the end of the VOP*/
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void update_cbr_buffer(
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cbr_buffer_handle ps_cbr_buffer, WORD32 i4_tot_consumed_bits, 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 get_cbr_bits_to_stuff(
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cbr_buffer_handle ps_cbr_buffer, WORD32 i4_tot_consumed_bits, picture_type_e e_pic_type);
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WORD32 get_cbr_buffer_delay(cbr_buffer_handle ps_cbr_buffer);
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WORD32 get_cbr_buffer_size(cbr_buffer_handle ps_cbr_buffer);
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WORD32 get_cbr_ebf(cbr_buffer_handle ps_cbr_buffer);
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WORD32 get_cbr_max_ebf(cbr_buffer_handle ps_cbr_buffer);
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void update_cbr_buf_mismatch_bit(cbr_buffer_handle ps_cbr_buffer, WORD32 i4_error_bits);
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WORD32 get_error_bits_for_desired_buf(
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cbr_buffer_handle ps_cbr_buffer, WORD32 i4_lap_complexity_q7, WORD32 i4_bit_alloc_period);
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WORD32 get_buf_max_drain_rate(cbr_buffer_handle ps_cbr_buffer);
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WORD32 vbr_stream_buffer_constraint_check(
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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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WORD32 *pi4_max_tgt_bits,
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WORD32 *pi4_min_tgt_bits);
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void change_cbr_vbv_bit_rate(
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cbr_buffer_handle ps_cbr_buffer, WORD32 *i4_bit_rate, WORD32 i4_peak_bitrate);
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void change_cbr_vbv_tgt_frame_rate(cbr_buffer_handle ps_cbr_buffer, WORD32 i4_tgt_frm_rate);
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void change_cbr_vbv_num_pics_in_delay_period(
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cbr_buffer_handle ps_cbr_buffer, UWORD32 *u4_num_pics_in_delay_prd);
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void change_cbr_buffer_delay(cbr_buffer_handle ps_cbr_buffer, WORD32 i4_buffer_delay);
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void set_cbr_ebf(cbr_buffer_handle ps_cbr_buffer, WORD32 i32_init_ebf);
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LWORD64 get_num_frms_encoded(cbr_buffer_handle ps_cbr_buffer);
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LWORD64 get_num_frms_to_encode(cbr_buffer_handle ps_cbr_buffer);
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WORD32 get_vbv_buffer_based_excess(
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cbr_buffer_handle ps_cbr_buffer,
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float f_complexity_peak_rate,
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float f_cur_bits_complexity,
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WORD32 bit_alloc_period,
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WORD32 i4_num_gops_for_excess);
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rc_type_e get_rc_type(cbr_buffer_handle ps_cbr_buffer);
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void cbr_modify_ebf_estimate(cbr_buffer_handle ps_cbr_buffer, WORD32 i4_bit_error);
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UWORD32 cbr_get_delay_frames(cbr_buffer_handle ps_cbr_buffer);
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#endif /* CBR_BUFFER_CONTROL_H */
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