| Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2015 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ***************************************************************************** |
| 18 | * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| 19 | */ |
| 20 | |
| 21 | /*****************************************************************************/ |
| 22 | /* */ |
| 23 | /* File Name : irc_cbr_buffer_control.h */ |
| 24 | /* */ |
| 25 | /* Description : This file contains all the necessary declarations */ |
| 26 | /* for cbr_buffer_control functions */ |
| 27 | /* */ |
| 28 | /* */ |
| 29 | /* List of Functions : <List the functions defined in this file> */ |
| 30 | /* */ |
| 31 | /* Issues / Problems : None */ |
| 32 | /* */ |
| 33 | /* Revision History : */ |
| 34 | /* */ |
| 35 | /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| 36 | /* 06 05 2008 Ittiam Draft */ |
| 37 | /* */ |
| 38 | /*****************************************************************************/ |
| 39 | |
| 40 | #ifndef CBR_BUFFER_CONTROL_H |
| 41 | #define CBR_BUFFER_CONTROL_H |
| 42 | |
| 43 | /* Macro for clipping a number between to extremes */ |
| 44 | #define CLIP(Number,Max,Min) if((Number) > (Max)) (Number) = (Max); \ |
| 45 | else if((Number) < (Min)) (Number) = (Min); |
| 46 | /*****************************************************************************/ |
| 47 | /* Structure */ |
| 48 | /*****************************************************************************/ |
| 49 | typedef struct cbr_buffer_t *cbr_buffer_handle; |
| 50 | |
| 51 | WORD32 irc_cbr_buffer_num_fill_use_free_memtab(cbr_buffer_handle *pps_cbr_buffer, |
| 52 | itt_memtab_t *ps_memtab, |
| 53 | ITT_FUNC_TYPE_E e_func_type); |
| 54 | |
| 55 | /* Initialize the cbr Buffer*/ |
| 56 | void irc_init_cbr_buffer(cbr_buffer_handle ps_cbr_buffer, |
| 57 | WORD32 i4_buffer_delay, |
| 58 | WORD32 i4_tgt_frm_rate, |
| 59 | WORD32 *i4_bit_rate, |
| 60 | UWORD32 *u4_num_pics_in_delay_prd, |
| 61 | UWORD32 u4_vbv_buf_size); |
| 62 | |
| 63 | /* Check for tgt bits with in CBR buffer*/ |
| 64 | WORD32 irc_cbr_buffer_constraint_check(cbr_buffer_handle ps_cbr_buffer, |
| 65 | WORD32 i4_tgt_bits, |
| 66 | picture_type_e e_pic_type); |
| 67 | |
| 68 | /* Get the buffer status with the current consumed bits*/ |
| 69 | vbv_buf_status_e irc_get_cbr_buffer_status(cbr_buffer_handle ps_cbr_buffer, |
| 70 | WORD32 i4_tot_consumed_bits, |
| 71 | WORD32 *pi4_num_bits_to_prevent_overflow, |
| 72 | picture_type_e e_pic_type); |
| 73 | |
| 74 | /* Update the CBR buffer at the end of the VOP*/ |
| 75 | void irc_update_cbr_buffer(cbr_buffer_handle ps_cbr_buffer, |
| 76 | WORD32 i4_tot_consumed_bits, |
| 77 | picture_type_e e_pic_type); |
| 78 | |
| 79 | /*Get the bits needed to stuff in case of Underflow*/ |
| 80 | WORD32 irc_get_cbr_bits_to_stuff(cbr_buffer_handle ps_cbr_buffer, |
| 81 | WORD32 i4_tot_consumed_bits, |
| 82 | picture_type_e e_pic_type); |
| 83 | |
| 84 | WORD32 irc_get_cbr_buffer_delay(cbr_buffer_handle ps_cbr_buffer); |
| 85 | |
| 86 | WORD32 irc_get_cbr_buffer_size(cbr_buffer_handle ps_cbr_buffer); |
| 87 | |
| 88 | WORD32 irc_vbr_stream_buffer_constraint_check(cbr_buffer_handle ps_cbr_buffer, |
| 89 | WORD32 i4_tgt_bits, |
| 90 | picture_type_e e_pic_type); |
| 91 | |
| 92 | void irc_change_cbr_vbv_bit_rate(cbr_buffer_handle ps_cbr_buffer, |
| 93 | WORD32 *i4_bit_rate); |
| 94 | |
| 95 | void irc_change_cbr_vbv_tgt_frame_rate(cbr_buffer_handle ps_cbr_buffer, |
| 96 | WORD32 i4_tgt_frm_rate); |
| 97 | |
| 98 | void irc_change_cbr_vbv_num_pics_in_delay_period(cbr_buffer_handle ps_cbr_buffer, |
| 99 | UWORD32 *u4_num_pics_in_delay_prd); |
| 100 | |
| 101 | void irc_change_cbr_buffer_delay(cbr_buffer_handle ps_cbr_buffer, |
| 102 | WORD32 i4_buffer_delay); |
| 103 | #endif /* CBR_BUFFER_CONTROL_H */ |
| 104 | |