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123 lines
3.6 KiB
123 lines
3.6 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
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* ih264_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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* @remarks
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* None
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*
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*******************************************************************************
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*/
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#ifndef _IH264_BUF_MGR_H_
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#define _IH264_BUF_MGR_H_
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#define BUF_MGR_MAX_CNT 64
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/** Flag for current encoding decoder */
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#define BUF_MGR_CODEC (1 << 1)
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/** Flag for reference status */
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#define BUF_MGR_REF (1 << 2)
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/** Flag for I/O - Display/output in case of decoder, capture/input in case of encoder */
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#define BUF_MGR_IO (1 << 3)
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typedef struct
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{
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/**
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* Mutex used to keep the functions thread-safe
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*/
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void *pv_mutex;
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/**
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* max_buf_cnt
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*/
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WORD32 i4_max_buf_cnt;
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/**
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* active_buf_cnt
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*/
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WORD32 i4_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 - IN USE */
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/* Bit 1 - CODEC */
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/* Bit 2 - REF */
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/* Bit 3 - DISP/IO/RECON */
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void *apv_ptr[BUF_MGR_MAX_CNT];
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}buf_mgr_t;
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// Returns size of the buffer manager context
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WORD32 ih264_buf_mgr_size(void);
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//Free buffer manager
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IH264_ERROR_T ih264_buf_mgr_free(buf_mgr_t *ps_buf_mgr);
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// Initializes the buffer API structure
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void *ih264_buf_mgr_init(void *pv_buf);
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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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IH264_ERROR_T ih264_buf_mgr_add(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* ih264_buf_mgr_get_next_free(buf_mgr_t *ps_buf_mgr, WORD32 *pi4_id);
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// this function will check if there are any free buffers
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IH264_ERROR_T ih264_buf_mgr_check_free(buf_mgr_t *ps_buf_mgr);
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// mask will have who released it: DISP:REF:DEC
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IH264_ERROR_T ih264_buf_mgr_release(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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IH264_ERROR_T ih264_buf_mgr_set_status(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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WORD32 ih264_buf_mgr_get_status(buf_mgr_t *ps_buf_mgr, WORD32 id);
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// pass the ID - buffer will be returned
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void* ih264_buf_mgr_get_buf(buf_mgr_t *ps_buf_mgr, WORD32 id);
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//Pass buffer to get ID
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WORD32 ih264_buf_mgr_get_bufid(buf_mgr_t *ps_buf_mgr, void *pv_buf);
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// will return number of active buffers
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UWORD32 ih264_buf_mgr_get_num_active_buf(buf_mgr_t *ps_buf_mgr);
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#endif /* _IH264_BUF_MGR_H_ */
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