| /****************************************************************************** |
| * |
| * Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| /** |
| ******************************************************************************* |
| * @file |
| * ihevc_buf_mgr.h |
| * |
| * @brief |
| * Function declarations used for buffer management |
| * |
| * @author |
| * Srinivas T |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| #ifndef _BUF_MGR_H_ |
| #define _BUF_MGR_H_ |
| |
| #define BUF_MGR_MAX_CNT 64 |
| |
| #define BUF_MGR_DEC 1 |
| #define BUF_MGR_REF (1 << 1) |
| #define BUF_MGR_DISP (1 << 2) |
| |
| typedef struct |
| { |
| /** |
| * max_buf_cnt |
| */ |
| UWORD32 u4_max_buf_cnt; |
| |
| /** |
| * active_buf_cnt |
| */ |
| UWORD32 u4_active_buf_cnt; |
| /** |
| * au4_status[BUF_MGR_MAX_CNT] |
| */ |
| UWORD32 au4_status[BUF_MGR_MAX_CNT]; |
| /* The last three bit of status are: */ |
| /* Bit 0 - DEC */ |
| /* Bit 1 - REF */ |
| /* Bit 2 - DISP */ |
| |
| void *apv_ptr[BUF_MGR_MAX_CNT]; |
| }buf_mgr_t; |
| |
| // intializes the buffer API structure |
| void ihevc_buf_mgr_init( |
| buf_mgr_t *ps_buf_mgr); |
| |
| // Add buffer to buffer manager. 0: success, -1: fail (u4_active_buf_cnt has reached u4_max_buf_cnt) |
| WORD32 ihevc_buf_mgr_add( |
| buf_mgr_t *ps_buf_mgr, |
| void *pv_ptr, |
| WORD32 buf_id); |
| |
| // this function will set the buffer status to DEC |
| void* ihevc_buf_mgr_get_next_free( |
| buf_mgr_t *ps_buf_mgr, |
| WORD32 *pi4_id); |
| |
| // this function will check if there are any free buffers |
| WORD32 ihevc_buf_mgr_check_free( |
| buf_mgr_t *ps_buf_mgr); |
| |
| // mask will have who released it: DISP:REF:DEC |
| WORD32 ihevc_buf_mgr_release( |
| buf_mgr_t *ps_buf_mgr, |
| WORD32 id, |
| UWORD32 mask); |
| |
| // sets the status to one or all of DISP:REF:DEC |
| WORD32 ihevc_buf_mgr_set_status( |
| buf_mgr_t *ps_buf_mgr, |
| WORD32 id, |
| UWORD32 mask); |
| |
| // Gets status of the buffer |
| UWORD32 ihevc_buf_mgr_get_status( |
| buf_mgr_t *ps_buf_mgr, |
| WORD32 id); |
| |
| // pass the ID - buffer will be returned |
| void* ihevc_buf_mgr_get_buf( |
| buf_mgr_t *ps_buf_mgr, |
| WORD32 id); |
| |
| // will return number of active buffers |
| UWORD32 ihevc_buf_mgr_get_num_active_buf( |
| buf_mgr_t *ps_buf_mgr); |
| |
| |
| |
| #endif //_BUF_MGR_H_ |