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113 lines
3.0 KiB
113 lines
3.0 KiB
/****************************************************************************** |
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* |
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* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore |
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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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/** |
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******************************************************************************* |
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* @file |
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* ihevc_buf_mgr.h |
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* |
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* @brief |
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* Function declarations used for buffer management |
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* |
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* @author |
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* Srinivas T |
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* |
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* @remarks |
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* None |
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* |
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******************************************************************************* |
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*/ |
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#ifndef _BUF_MGR_H_ |
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#define _BUF_MGR_H_ |
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#define BUF_MGR_MAX_CNT 64 |
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#define BUF_MGR_DEC 1 |
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#define BUF_MGR_REF (1 << 1) |
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#define BUF_MGR_DISP (1 << 2) |
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typedef struct |
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{ |
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/** |
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* max_buf_cnt |
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*/ |
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UWORD32 u4_max_buf_cnt; |
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/** |
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* active_buf_cnt |
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*/ |
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UWORD32 u4_active_buf_cnt; |
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/** |
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* au4_status[BUF_MGR_MAX_CNT] |
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*/ |
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UWORD32 au4_status[BUF_MGR_MAX_CNT]; |
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/* The last three bit of status are: */ |
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/* Bit 0 - DEC */ |
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/* Bit 1 - REF */ |
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/* Bit 2 - DISP */ |
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void *apv_ptr[BUF_MGR_MAX_CNT]; |
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}buf_mgr_t; |
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// intializes the buffer API structure |
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void ihevc_buf_mgr_init( |
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buf_mgr_t *ps_buf_mgr); |
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// Add buffer to buffer manager. 0: success, -1: fail (u4_active_buf_cnt has reached u4_max_buf_cnt) |
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WORD32 ihevc_buf_mgr_add( |
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buf_mgr_t *ps_buf_mgr, |
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void *pv_ptr, |
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WORD32 buf_id); |
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// this function will set the buffer status to DEC |
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void* ihevc_buf_mgr_get_next_free( |
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buf_mgr_t *ps_buf_mgr, |
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WORD32 *pi4_id); |
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// this function will check if there are any free buffers |
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WORD32 ihevc_buf_mgr_check_free( |
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buf_mgr_t *ps_buf_mgr); |
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// mask will have who released it: DISP:REF:DEC |
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WORD32 ihevc_buf_mgr_release( |
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buf_mgr_t *ps_buf_mgr, |
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WORD32 id, |
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UWORD32 mask); |
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// sets the status to one or all of DISP:REF:DEC |
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WORD32 ihevc_buf_mgr_set_status( |
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buf_mgr_t *ps_buf_mgr, |
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WORD32 id, |
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UWORD32 mask); |
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// Gets status of the buffer |
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UWORD32 ihevc_buf_mgr_get_status( |
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buf_mgr_t *ps_buf_mgr, |
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WORD32 id); |
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// pass the ID - buffer will be returned |
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void* ihevc_buf_mgr_get_buf( |
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buf_mgr_t *ps_buf_mgr, |
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WORD32 id); |
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// will return number of active buffers |
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UWORD32 ihevc_buf_mgr_get_num_active_buf( |
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buf_mgr_t *ps_buf_mgr); |
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#endif //_BUF_MGR_H_
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