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/*
* Copyright (C) 2011 The Android Open Source Project
*
* 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 VideoEditorBuffer.c
* @brief StageFright shell Buffer
*************************************************************************
*/
#ifndef VIDEOEDITOR_BUFFER_H
#define VIDEOEDITOR_BUFFER_H
#include "M4OSA_Types.h"
#include "M4OSA_Debug.h"
#include "M4OSA_Memory.h"
#include "M4OSA_CharStar.h"
#include "M4_Utils.h"
#include "LV_Macros.h"
/*--- Core id for VIDEOEDITOR Buffer allocations ---*/
#define VIDEOEDITOR_BUFFER_EXTERNAL 0x012F
/* ----- errors -----*/
#define M4ERR_NO_BUFFER_AVAILABLE \
M4OSA_ERR_CREATE(M4_ERR,VIDEOEDITOR_BUFFER_EXTERNAL,0x000001)
#define M4ERR_NO_BUFFER_MATCH \
M4OSA_ERR_CREATE(M4_ERR,VIDEOEDITOR_BUFFER_EXTERNAL,0x000002)
typedef enum {
VIDEOEDITOR_BUFFER_kEmpty = 0,
VIDEOEDITOR_BUFFER_kFilled,
} VIDEOEDITOR_BUFFER_State;
/**
************************************************************************
* Structure LVOMX_BUFFER_Buffer
* @brief One OMX Buffer and data related to it
************************************************************************
*/
typedef struct {
M4OSA_Void* pData; /**< Pointer to the data*/
M4OSA_UInt32 size;
VIDEOEDITOR_BUFFER_State state; /**< Buffer state */
M4OSA_UInt32 idx; /**< Index of the buffer inside the pool */
M4_MediaTime buffCTS; /**< Time stamp of the buffer */
} VIDEOEDITOR_BUFFER_Buffer;
/**
************************************************************************
* Structure LVOMX_BUFFER_Pool
* @brief Structure to manage buffers
************************************************************************
*/
typedef struct {
VIDEOEDITOR_BUFFER_Buffer* pNXPBuffer;
M4OSA_UInt32 NB;
M4OSA_Char* poolName;
} VIDEOEDITOR_BUFFER_Pool;
#ifdef __cplusplus
extern "C"
{
#endif //__cplusplus
/**
************************************************************************
M4OSA_ERR VIDEOEDITOR_BUFFER_allocatePool(VIDEOEDITOR_BUFFER_Pool** ppool,
* M4OSA_UInt32 nbBuffers)
* @brief Allocate a pool of nbBuffers buffers
*
* @param ppool : IN The buffer pool to create
* @param nbBuffers : IN The number of buffers in the pool
* @param poolName : IN a name given to the pool
* @return Error code
************************************************************************
*/
M4OSA_ERR VIDEOEDITOR_BUFFER_allocatePool(VIDEOEDITOR_BUFFER_Pool** ppool,
M4OSA_UInt32 nbBuffers, M4OSA_Char* poolName);
/**
************************************************************************
M4OSA_ERR VIDEOEDITOR_BUFFER_freePool(LVOMX_BUFFER_Pool* ppool)
* @brief Deallocate a buffer pool
*
* @param ppool : IN The buffer pool to free
* @return Error code
************************************************************************
*/
M4OSA_ERR VIDEOEDITOR_BUFFER_freePool(VIDEOEDITOR_BUFFER_Pool* ppool);
/**
************************************************************************
M4OSA_ERR VIDEOEDITOR_BUFFER_getBuffer(VIDEOEDITOR_BUFFER_Pool* ppool,
* VIDEOEDITOR_BUFFER_Buffer** pNXPBuffer)
* @brief Returns a buffer in a given state
*
* @param ppool : IN The buffer pool
* @param desiredState : IN The buffer state
* @param pNXPBuffer : IN The selected buffer
* @return Error code
************************************************************************
*/
M4OSA_ERR VIDEOEDITOR_BUFFER_getBuffer(VIDEOEDITOR_BUFFER_Pool* ppool,
VIDEOEDITOR_BUFFER_State desiredState,
VIDEOEDITOR_BUFFER_Buffer** pNXPBuffer);
M4OSA_ERR VIDEOEDITOR_BUFFER_initPoolBuffers(VIDEOEDITOR_BUFFER_Pool* ppool,
M4OSA_UInt32 lSize);
M4OSA_ERR VIDEOEDITOR_BUFFER_getOldestBuffer(VIDEOEDITOR_BUFFER_Pool *pool,
VIDEOEDITOR_BUFFER_State desiredState,
VIDEOEDITOR_BUFFER_Buffer** pNXPBuffer);
#ifdef __cplusplus
}
#endif //__cplusplus
#endif /*VIDEOEDITOR_BUFFER_H*/
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