diff options
Diffstat (limited to 'libvideoeditor/osal/src/M4OSA_FileReader.c')
| -rwxr-xr-x | libvideoeditor/osal/src/M4OSA_FileReader.c | 549 |
1 files changed, 0 insertions, 549 deletions
diff --git a/libvideoeditor/osal/src/M4OSA_FileReader.c b/libvideoeditor/osal/src/M4OSA_FileReader.c deleted file mode 100755 index 40a72f5..0000000 --- a/libvideoeditor/osal/src/M4OSA_FileReader.c +++ /dev/null @@ -1,549 +0,0 @@ -/* - * 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 M4OSA_FileReader.c - * @author Cedric Lecoutre (cedric.lecoutre@philips.com) - * Laurent Fay (laurent.fay@philips.com) - * @par Org: Philips Digital Systems Laboratories - Paris (PDSL-P) - * @brief File reader for Android - * @note This file implements functions to read a file. - ************************************************************************ -*/ - - -#include "M4OSA_Debug.h" -#include "M4OSA_FileCommon_priv.h" -#include "M4OSA_FileReader.h" -#include "M4OSA_FileReader_priv.h" -#include "M4OSA_Memory.h" - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE -#include "M4OSA_Semaphore.h" -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - -/** -************************************************************************ -* @brief This function opens the provided URL and returns its context. -* If an error occured, the context is set to NULL. -* @param context: (OUT) Context of the core file reader -* @param url: (IN) URL of the input file -* @param fileModeAccess: (IN) File mode access -* @return M4NO_ERROR: there is no error -* @return M4ERR_PARAMETER: at least one parameter is NULL -* @return M4ERR_ALLOC: there is no more memory available -* @return M4ERR_NOT_IMPLEMENTED: the URL does not match with the supported -* file -* @return M4ERR_FILE_NOT_FOUND: the file cannot be found -* @return M4ERR_FILE_LOCKED: the file is locked by an other -* application/process -* @return M4ERR_FILE_BAD_MODE_ACCESS: the file mode access is not correct -************************************************************************ -*/ -M4OSA_ERR M4OSA_fileReadOpen(M4OSA_Context* pContext, M4OSA_Void* pFileDescriptor, - M4OSA_UInt32 fileModeAccess) -{ - M4OSA_TRACE1_3("M4OSA_fileReadOpen : pC = 0x%p fd = 0x%p mode = %lu", - pContext, pFileDescriptor, fileModeAccess); - - return M4OSA_fileCommonOpen(M4OSA_FILE_READER, pContext, - pFileDescriptor, fileModeAccess); -} - -/** -************************************************************************ -* @brief This function reads the 'size' bytes in the core file reader -* (selected by its 'context') and writes the data to the 'data' -* pointer. -* @note If 'size' byte cannot be read in the core file reader, 'size' -* parameter is updated to match the correct -* @note number of read bytes. -* @param context: (IN/OUT) Context of the core file reader -* @param buffer: (OUT) Data pointer of the read data -* @param size: (IN/OUT) Size of the data to read (in bytes) -* @return M4NO_ERROR: there is no error -* @return M4ERR_PARAMETER: at least one parameter is NULL -* @return M4ERR_BAD_CONTEXT: provided context is not a valid one -* @return M4ERR_ALLOC: there is no more memory available -* @return M4WAR_NO_DATA_YET: there is no enough data to fill the 'data' -* buffer, so the size parameter has been updated. -************************************************************************ -*/ -M4OSA_ERR M4OSA_fileReadData(M4OSA_Context pContext, M4OSA_MemAddr8 data, - M4OSA_UInt32* pSize) -{ - M4OSA_FileContext* pFileContext = pContext; - M4OSA_ERR err = M4NO_ERROR; - M4OSA_Int32 uiSizeRead; - - M4OSA_TRACE2_2("M4OSA_fileReadData : data = 0x%p size = %lu", - data, (M4OSA_NULL != pSize) ? (*pSize) : 0); - - M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, - "M4OSA_fileReadData: pContext is M4OSA_NULL"); - M4OSA_DEBUG_IF2(M4OSA_NULL == data, M4ERR_PARAMETER, - "M4OSA_fileReadData: data is M4OSA_NULL"); - M4OSA_DEBUG_IF2(M4OSA_NULL == pSize, M4ERR_PARAMETER, - "M4OSA_fileReadData: pSize is M4OSA_NULL"); -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_DEBUG_IF2(M4OSA_NULL == pFileContext->semaphore_context, - M4ERR_BAD_CONTEXT, "M4OSA_fileReadData: semaphore_context is M4OSA_NULL"); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - if(M4OSA_kDescRWAccess == pFileContext->m_DescrModeAccess) /* read write */ - { - uiSizeRead = fread(data, sizeof(M4OSA_Char), *pSize, - pFileContext->file_desc); - if(-1 == uiSizeRead) - { - /* handle is invalid, or the file is not open for reading, or the file is locked */ - *pSize = 0; - err = M4ERR_BAD_CONTEXT; - } - else - { - pFileContext->read_position = pFileContext->read_position + uiSizeRead; - if ((M4OSA_UInt32)uiSizeRead < *pSize) - { - *pSize = uiSizeRead; - /* This is the end of file */ - pFileContext->b_is_end_of_file = M4OSA_TRUE; - err = M4WAR_NO_DATA_YET; - } - else - { - *pSize = uiSizeRead; - } - } - - return err; - } - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - if(pFileContext->current_seek != SeekRead) - { - /* fseek to the last read position */ - err = M4OSA_fileCommonSeek(pContext, M4OSA_kFileSeekBeginning, - &(pFileContext->read_position)); - if(M4OSA_ERR_IS_ERROR(err)) - { - M4OSA_DEBUG(err, "M4OSA_fileReadData: M4OSA_fileCommonSeek"); - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphorePost(pFileContext->semaphore_context); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - return err; - } - - pFileContext->current_seek = SeekRead; - } - - /* Read data */ - uiSizeRead = fread(data, sizeof(M4OSA_Char), *pSize, - pFileContext->file_desc); - if(-1 == uiSizeRead) - { - /* handle is invalid, or the file is not open for reading, - or the file is locked */ - *pSize = 0; - err = M4ERR_BAD_CONTEXT; - } - else - { - pFileContext->read_position = pFileContext->read_position + uiSizeRead; - if ((M4OSA_UInt32)uiSizeRead < *pSize) - { - *pSize = uiSizeRead; - - /* This is the end of file */ - pFileContext->b_is_end_of_file = M4OSA_TRUE; - - err = M4WAR_NO_DATA_YET; - } - else - { - *pSize = uiSizeRead; - } - } - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphorePost(pFileContext->semaphore_context); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - - return err; -} - - -/** -************************************************************************ - * @brief This function seeks at the provided position in the core file - * reader (selected by its 'context'). The position is related to - * the seekMode parameter it can be either from the beginning, from - * the end or from the current postion. To support large file - * access (more than 2GBytes), the position is provided on a 64 - * bits. - * @note If this function returns an error the current position pointer - * in the file must not change. Else the current - * position pointer must be updated. - * @param context: (IN/OUT) Context of the core file reader - * @param seekMode: (IN) Seek access mode - * @param position: (IN/OUT) Position in the file - * @return M4NO_ERROR: there is no error - * @return M4ERR_PARAMETER: at least one parameter is NULL - * @return M4ERR_BAD_CONTEXT: provided context is not a valid one - * @return M4ERR_ALLOC: there is no more memory available - * @return M4ERR_FILE_INVALID_POSITION: the position cannot be reached - ************************************************************************ -*/ - -M4OSA_ERR M4OSA_fileReadSeek(M4OSA_Context pContext, M4OSA_FileSeekAccessMode seekMode, - M4OSA_FilePosition* pPosition) -{ - M4OSA_FileContext* pFileContext = (M4OSA_FileContext*)pContext; - M4OSA_ERR err; - - M4OSA_TRACE2_2("M4OSA_fileReadSeek : mode = %d pos = %lu", seekMode, - (pPosition != M4OSA_NULL) ? (*pPosition) : 0); - - M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, - "M4OSA_fileReadSeek: pContext is M4OSA_NULL"); - M4OSA_DEBUG_IF2(0 == seekMode, M4ERR_PARAMETER, - "M4OSA_fileReadSeek: seekMode is 0"); - M4OSA_DEBUG_IF2(M4OSA_NULL == pPosition, M4ERR_PARAMETER, - "M4OSA_fileReadSeek: pPosition is M4OSA_NULL"); -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_DEBUG_IF2(M4OSA_NULL == pFileContext->semaphore_context, - M4ERR_BAD_CONTEXT, "M4OSA_fileReadSeek: semaphore_context is M4OSA_NULL"); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - if (M4OSA_kDescRWAccess == pFileContext->m_DescrModeAccess) - { - M4OSA_UInt32 SeekModeOption; - /* Go to the desired position */ - if (M4OSA_kFileSeekBeginning == seekMode) - { - SeekModeOption = SEEK_SET; - } - else if (M4OSA_kFileSeekEnd == seekMode) - { - SeekModeOption = SEEK_END; - } - else if (M4OSA_kFileSeekCurrent == seekMode) - { - SeekModeOption = SEEK_CUR; - } - else - { - M4OSA_TRACE1_0("M4OSA_fileReadSeek: END WITH ERROR !!! (CONVERION ERROR FOR THE SEEK MODE)"); - return M4ERR_PARAMETER; - } - - /** - * Go to the desired position */ - err = fseek(pFileContext->file_desc, *pPosition, SeekModeOption); - if(err != 0) - { - /* converts the error to PSW format*/ - err=((M4OSA_UInt32)(M4_ERR)<<30)+(((M4OSA_FILE_WRITER)&0x003FFF)<<16)+(M4OSA_Int16)(err); - M4OSA_TRACE1_1("M4OSA_FileReadSeek error:%x",err); - } - else - { - return M4NO_ERROR; - } - - /* Return without error */ - return err; - } - - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - if(pFileContext->current_seek != SeekRead) - { - - /* fseek to the last read position */ - err = M4OSA_fileCommonSeek(pContext, M4OSA_kFileSeekBeginning, - &(pFileContext->read_position)); - if(M4OSA_ERR_IS_ERROR(err)) - { - M4OSA_DEBUG(err, "M4OSA_fileReadData: M4OSA_fileCommonSeek"); - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphorePost(pFileContext->semaphore_context); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - return err; - } - - pFileContext->current_seek = SeekRead; - } - - err = M4OSA_fileCommonSeek(pContext, seekMode, pPosition); - if(M4OSA_ERR_IS_ERROR(err)) - { - M4OSA_DEBUG(err, "M4OSA_fileReadData: M4OSA_fileCommonSeek"); - } - else - { - pFileContext->read_position = *pPosition; - } - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphorePost(pFileContext->semaphore_context); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - return err; -} - - -/** - ************************************************************************ - * @brief This function asks the core file reader to close the file - * (associated to the context). - * @note The context of the core file reader is freed. - * @param pContext: (IN/OUT) Context of the core file reader - * @return M4NO_ERROR: there is no error - * @return M4ERR_PARAMETER: at least one parameter is NULL - * @return M4ERR_BAD_CONTEXT: provided context is not a valid one - * @return M4ERR_ALLOC: there is no more memory available - ************************************************************************ -*/ -M4OSA_ERR M4OSA_fileReadClose(M4OSA_Context pContext) -{ - M4OSA_FileContext* pFileContext = (M4OSA_FileContext*)pContext; - - M4OSA_TRACE1_1("M4OSA_fileReadClose : pC = 0x%p", pContext); - - M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, - "M4OSA_fileReadClose: pContext is M4OSA_NULL"); - - if(M4OSA_FILE_WRITER == pFileContext->coreID_write) - { - return M4NO_ERROR; - } - - return M4OSA_fileCommonClose(M4OSA_FILE_READER, pContext); -} - - - - -/** - ************************************************************************ - * @brief This function asks the core file reader to return the value - * associated with the optionID. The caller is responsible for - * allocating/de-allocating the memory of the value field. - * @note 'value' must be cast according to the type related to the - * optionID As the caller is responsible for - * allocating/de-allocating the 'value' field, the callee must copy - * this field to its internal variable. - * @param pContext: (IN/OUT) Context of the core file reader - * @param pOptionID: (IN) ID of the option - * @param pOptionValue: (OUT) Value of the option - * @return M4NO_ERROR: there is no error - * @return M4ERR_PARAMETER: at least one parameter is NULL - * @return M4ERR_BAD_CONTEXT: provided context is not a valid one - * @return M4ERR_BAD_OPTION_ID: the optionID is not a valid one - * @return M4ERR_WRITE_ONLY: this option is a write only one - * @return M4ERR_NOT_IMPLEMENTED: this option is not implemented - ************************************************************************ -*/ -M4OSA_ERR M4OSA_fileReadGetOption(M4OSA_Context pContext, M4OSA_FileReadOptionID optionID, - M4OSA_DataOption* pOptionValue) -{ - M4OSA_FileContext* pFileContext = pContext; - - M4OSA_TRACE2_1("M4OSA_fileReadGetOption : option = 0x%x", optionID); - - M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, - "M4OSA_fileReadGetOption: pContext is M4OSA_NULL"); - M4OSA_DEBUG_IF2(optionID == 0, M4ERR_PARAMETER, - "M4OSA_fileReadGetOption: optionID is 0"); - M4OSA_DEBUG_IF2(M4OSA_NULL == pOptionValue, M4ERR_PARAMETER, - "M4OSA_fileReadGetOption: pOptionValue is M4OSA_NULL"); - - M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_COREID(optionID, M4OSA_FILE_READER), - M4ERR_BAD_OPTION_ID, "M4OSA_fileReadGetOption"); - M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_READABLE(optionID), - M4ERR_WRITE_ONLY, "M4OSA_fileReadGetOption"); -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_DEBUG_IF2(M4OSA_NULL == pFileContext->semaphore_context, - M4ERR_BAD_CONTEXT, - "M4OSA_fileReadGetOption: semaphore_context is M4OSA_NULL"); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - switch(optionID) - { -#if(M4OSA_OPTIONID_FILE_READ_GET_FILE_POSITION == M4OSA_TRUE) - case M4OSA_kFileReadGetFilePosition: - { - M4OSA_FilePosition* pPosition = (M4OSA_FilePosition*)pOptionValue; - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - *pPosition = pFileContext->read_position; - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphorePost(pFileContext->semaphore_context); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - return M4NO_ERROR; - } -#endif /*M4OSA_OPTIONID_FILE_READ_GET_FILE_POSITION*/ - -#if(M4OSA_OPTIONID_FILE_READ_IS_EOF == M4OSA_TRUE) - case M4OSA_kFileReadIsEOF: - { - M4OSA_Bool* bIsEndOfFile = (M4OSA_Bool*)pOptionValue; - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - *bIsEndOfFile = pFileContext->b_is_end_of_file; - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphorePost(pFileContext->semaphore_context); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - return M4NO_ERROR; - } -#endif /*M4OSA_OPTIONID_FILE_READ_IS_EOF*/ - - -#if(M4OSA_OPTIONID_FILE_READ_GET_FILE_SIZE == M4OSA_TRUE) - case M4OSA_kFileReadGetFileSize: - { - M4OSA_FilePosition* pPosition = (M4OSA_FilePosition*)pOptionValue; - M4OSA_Int32 iSavePos = 0; - M4OSA_Int32 iSize = 0; - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphoreWait(pFileContext->semaphore_context, M4OSA_WAIT_FOREVER); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - /** - * Bugfix: update the file size. - * When a file is in read mode, may be another application is writing in. - * So, we have to update the file size */ - iSavePos = ftell(pFileContext->file_desc); /*1- Check the first position */ - fseek(pFileContext->file_desc, 0, SEEK_END); /*2- Go to the end of the file */ - iSize = ftell(pFileContext->file_desc); /*3- Check the file size*/ - fseek(pFileContext->file_desc, iSavePos, SEEK_SET); /*4- go to the first position*/ - pFileContext->file_size = iSize; - - *pPosition = pFileContext->file_size; - -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_semaphorePost(pFileContext->semaphore_context); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - return M4NO_ERROR; - } -#endif /*M4OSA_OPTIONID_FILE_READ_GET_FILE_SIZE*/ - -#if(M4OSA_OPTIONID_FILE_READ_GET_FILE_ATTRIBUTE == M4OSA_TRUE) - case M4OSA_kFileReadGetFileAttribute: - { - return M4OSA_fileCommonGetAttribute(pContext, - (M4OSA_FileAttribute*)pOptionValue); - } -#endif /*M4OSA_OPTIONID_FILE_READ_GET_FILE_ATTRIBUTE*/ - -#if(M4OSA_OPTIONID_FILE_READ_GET_URL == M4OSA_TRUE) - case M4OSA_kFileReadGetURL: - { - return M4OSA_fileCommonGetURL(pContext, (M4OSA_Char**)pOptionValue); - } -#endif /*M4OSA_OPTIONID_FILE_READ_GET_URL*/ - - case M4OSA_kFileReadLockMode: - { - *(M4OSA_UInt32*)pOptionValue = pFileContext->m_uiLockMode; - return M4NO_ERROR; - } - } - - M4OSA_DEBUG(M4ERR_NOT_IMPLEMENTED, "M4OSA_fileReadGetOption"); - - return M4ERR_NOT_IMPLEMENTED; -} - -/** - ************************************************************************ - * @fn M4OSA_ERR M4OSA_fileReadSetOption (M4OSA_Context context, - * M4OSA_OptionID optionID, M4OSA_DataOption optionValue)) - * @brief This function asks the core file reader to set the value associated with the optionID. - * The caller is responsible for allocating/de-allocating the memory of the value field. - * @note As the caller is responsible for allocating/de-allocating the 'value' field, the callee must copy this field - * to its internal variable. - * @param pContext: (IN/OUT) Context of the core file reader - * @param optionID: (IN) ID of the option - * @param value: (IN) Value of the option - * @return M4NO_ERROR: there is no error - * @return M4ERR_PARAMETER: at least one parameter is NULL - * @return M4ERR_BAD_CONTEXT: provided context is not a valid one - * @return M4ERR_BAD_OPTION_ID: the optionID is not a valid one - * @return M4ERR_READ_ONLY: this option is a read only one - * @return M4ERR_NOT_IMPLEMENTED: this option is not implemented - ************************************************************************ -*/ -M4OSA_ERR M4OSA_fileReadSetOption(M4OSA_Context pContext, - M4OSA_FileReadOptionID optionID, - M4OSA_DataOption optionValue) -{ - M4OSA_FileContext* pFileContext = pContext; - - M4OSA_TRACE2_1("M4OSA_fileReadSetOption : option = 0x%x", optionID); - - M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, - "M4OSA_fileReadSetOption: pContext is M4OSA_NULL"); - M4OSA_DEBUG_IF2(0 == optionID, M4ERR_PARAMETER, - "M4OSA_fileReadSetOption"); - M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_COREID(optionID, M4OSA_FILE_READER), - M4ERR_BAD_OPTION_ID, "M4OSA_fileReadSetOption"); - - M4OSA_DEBUG_IF2(!M4OSA_OPTION_ID_IS_WRITABLE(optionID), - M4ERR_READ_ONLY, "M4OSA_fileReadSetOption"); -#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE - M4OSA_DEBUG_IF2(M4OSA_NULL == pFileContext->semaphore_context, - M4ERR_BAD_CONTEXT, - "M4OSA_fileReadSetOption: semaphore_context is M4OSA_NULL"); -#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */ - - switch(optionID) - { - case M4OSA_kFileReadLockMode: - { - pFileContext->m_uiLockMode= (M4OSA_UInt32)*(M4OSA_UInt32*)optionValue; - return M4NO_ERROR; - } - default: - M4OSA_DEBUG(M4ERR_NOT_IMPLEMENTED, "M4OSA_fileReadSetOption"); - return M4ERR_NOT_IMPLEMENTED; - } -} - |