/**
************************************************************************
* @brief This function gets the file URL (associated to the context).
* @note
* @param context: (IN) Context of the core file reader
* @param url: (OUT) The buffer containing the URL (allocated by
* M4OSA_fileCommonGetURL)
* @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_fileCommonGetURL(M4OSA_Context pContext, M4OSA_Char** pUrl)
{
M4OSA_FileContext* pFileContext = pContext;
M4OSA_UInt32 uiLength;
M4OSA_TRACE3_2("M4OSA_fileCommonGetURL\tM4OSA_Context 0x%x\tM4OSA_Char** 0x%x",
pContext, pUrl);
M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER,
"M4OSA_fileCommonGetURL: pContext is M4OSA_NULL");
M4OSA_DEBUG_IF2(M4OSA_NULL == pUrl, M4ERR_PARAMETER,
"M4OSA_fileCommonGetURL: pUrl is M4OSA_NULL");
uiLength = strlen((const char *)pFileContext->url_name)+1;
/* Allocate the memory to store the url_name */
*pUrl = (M4OSA_Char*)M4OSA_32bitAlignedMalloc(uiLength, M4OSA_FILE_COMMON,
(M4OSA_Char*)"M4OSA_fileCommonGetURL: url");
if(M4OSA_NULL == *pUrl)
{
M4OSA_DEBUG(M4ERR_ALLOC, "M4OSA_fileCommonGetURL");
return M4ERR_ALLOC;
}
M4OSA_chrNCopy(*pUrl, pFileContext->url_name, uiLength);
return M4NO_ERROR;
}
/**
************************************************************************
* @brief This function gets a string containing the file name associated
* to the input URL.
* @note The user should not forget to delete the output string using
* M4OSA_strDestroy
* @param pUrl: (IN) The buffer containing the URL
* @param pFileName: (OUT) The string containing the URL. It is
* allocated inside this function
* @return M4NO_ERROR: there is no error
* @return M4ERR_NOT_IMPLEMENTED: the URL does not match with the supported
* file
* @return M4ERR_ALLOC: there is no more memory available
************************************************************************
*/
M4OSA_ERR M4OSA_fileCommonGetFilename(M4OSA_Char* pUrl, M4OSA_Char** pFileName)
{
M4OSA_Int32 i = 0;
M4OSA_Int32 iUrlLen = 0;
M4OSA_Int32 FileNameLen = 0;
M4OSA_Char* ptrUrl = M4OSA_NULL;
M4OSA_Char* ptrFilename = M4OSA_NULL;
M4OSA_TRACE3_2("M4OSA_fileCommonGetURL\tM4OSA_Char* %s\tM4OSA_Char** 0x%x",
pUrl, pFileName);
M4OSA_DEBUG_IF2(M4OSA_NULL == pUrl, M4ERR_PARAMETER,
"M4OSA_fileCommonGetFilename: pUrl is M4OSA_NULL");
M4OSA_DEBUG_IF2(M4OSA_NULL == pFileName, M4ERR_PARAMETER,
"M4OSA_fileCommonGetFilename: pFileName is M4OSA_NULL");
*pFileName = M4OSA_NULL;
/*Parse URL*/
iUrlLen = strlen((const char *)pUrl);
for(i=iUrlLen-1; i>=0; i--)
{
if (pUrl[i] != '\\' && pUrl[i] != '/')
{
FileNameLen++;
}
else
{
break; /* find the beginning of the file name */
}
}
ptrFilename = (M4OSA_Char*) M4OSA_32bitAlignedMalloc(FileNameLen+1, M4OSA_FILE_COMMON,
(M4OSA_Char*)"M4OSA_fileCommonGetFilename: Filename string");
if (ptrFilename == M4OSA_NULL)
{
M4OSA_DEBUG(M4ERR_ALLOC, "M4OSA_fileCommonGetFilename");
return M4ERR_ALLOC;
}
ptrUrl = pUrl + (iUrlLen - FileNameLen);
M4OSA_chrNCopy(ptrFilename, ptrUrl, FileNameLen+1);
*pFileName = ptrFilename;
return M4NO_ERROR;
}
/**
************************************************************************
* @brief This function opens the provided URL and returns its context.
* If an error occured, the context is set to NULL.
* @param core_id: (IN) Core ID of the caller (M4OSA_FILE_READER or M4OSA_FILE_WRITER)
* @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_fileCommonOpen(M4OSA_UInt16 core_id, M4OSA_Context* pContext,
M4OSA_Char* pUrl, M4OSA_FileModeAccess fileModeAccess)
{
M4OSA_Int32 i = 0;
M4OSA_Int32 iMode = 0;
M4OSA_Int32 iSize = 0;
M4OSA_Int32 iSavePos = 0;
M4OSA_Char mode[4] = "";
M4OSA_Char* pReadString = (M4OSA_Char*)"r";
M4OSA_Char* pWriteString = (M4OSA_Char*)"w";
M4OSA_Char* pAppendString = (M4OSA_Char*)"a";
M4OSA_Char* pBinaryString = (M4OSA_Char*)"b";
M4OSA_Char* pPlusString = (M4OSA_Char*)"+";
M4OSA_ERR err = M4NO_ERROR;
FILE* pFileHandler = M4OSA_NULL;
M4OSA_FileContext *pFileContext = M4OSA_NULL;
#ifdef UTF_CONVERSION
/*FB: to test the UTF16->UTF8 conversion into Video Artist*/
/*Convert the URL from UTF16 to UTF8*/
M4OSA_Void* tempConversionBuf;
M4OSA_UInt32 tempConversionSize = 1000;
tempConversionBuf = (M4OSA_Char*)M4OSA_32bitAlignedMalloc(tempConversionSize +1, 0, "conversion buf");
if(tempConversionBuf == M4OSA_NULL)
{
M4OSA_TRACE1_0("Error when allocating conversion buffer\n");
return M4ERR_PARAMETER;
}
M4OSA_ToUTF8_OSAL(pUrl, tempConversionBuf, &tempConversionSize);
((M4OSA_Char*)tempConversionBuf)[tempConversionSize ] = '\0';
printf("file open %s\n", tempConversionBuf);
#endif /*UTF CONVERSION*/
M4OSA_TRACE3_4("M4OSA_fileCommonOpen\t\tM4OSA_UInt16 %d\tM4OSA_Context* 0x%x\t"
"M4OSA_Char* %s\tfileModeAccess %d", core_id, pContext, pUrl, fileModeAccess);
M4OSA_DEBUG_IF2(M4OSA_NULL == pContext, M4ERR_PARAMETER, "M4OSA_fileCommonOpen: pContext is M4OSA_NULL");
M4OSA_DEBUG_IF2(M4OSA_NULL == pUrl, M4ERR_PARAMETER, "M4OSA_fileCommonOpen: pUrl is M4OSA_NULL");
M4OSA_DEBUG_IF2(0 == fileModeAccess, M4ERR_PARAMETER, "M4OSA_fileCommonOpen: fileModeAccess is 0");
/* Read mode not set for the reader */
M4OSA_DEBUG_IF1((M4OSA_FILE_READER == core_id) && !(fileModeAccess & M4OSA_kFileRead),
M4ERR_FILE_BAD_MODE_ACCESS, "M4OSA_fileCommonOpen: M4OSA_kFileRead");
/* Read mode not set for the reader */
M4OSA_DEBUG_IF1((M4OSA_FILE_READER == core_id) && !(fileModeAccess & M4OSA_kFileRead),
M4ERR_FILE_BAD_MODE_ACCESS, "M4OSA_fileCommonOpen: M4OSA_kFileRead");
/* M4OSAfileReadOpen cannot be used with Write file mode access */
M4OSA_DEBUG_IF1((M4OSA_FILE_READER == core_id) && (fileModeAccess & M4OSA_kFileWrite),
M4ERR_FILE_BAD_MODE_ACCESS, "M4OSA_fileCommonOpen: M4OSA_kFileWrite");
/* Append and Create flags cannot be used with Read */
M4OSA_DEBUG_IF1((M4OSA_FILE_READER == core_id) && (fileModeAccess & M4OSA_kFileAppend),
M4ERR_FILE_BAD_MODE_ACCESS, "M4OSA_fileCommonOpen: M4OSA_kFileAppend");
M4OSA_DEBUG_IF1((M4OSA_FILE_READER == core_id) && (fileModeAccess & M4OSA_kFileCreate),
M4ERR_FILE_BAD_MODE_ACCESS, "M4OSA_fileCommonOpen: M4OSA_kFileCreate");
/* Write mode not set for the writer */
M4OSA_DEBUG_IF1((M4OSA_FILE_WRITER == core_id) && !(fileModeAccess & M4OSA_kFileWrite),
M4ERR_FILE_BAD_MODE_ACCESS, "M4OSA_fileCommonOpen: M4OSA_kFileWrite");
/* Create flag necessary for opening file */
if ((fileModeAccess & M4OSA_kFileRead) &&
(fileModeAccess & M4OSA_kFileWrite)&&(fileModeAccess & M4OSA_kFileCreate))
{
strncat((char *)mode, (const char *)pWriteString, (size_t)1);
strncat((char *)mode, (const char *)pPlusString, (size_t)1);
}
else
{
if(fileModeAccess & M4OSA_kFileAppend)
{
strncat((char *)mode, (const char *)pAppendString, (size_t)1);
}
else if(fileModeAccess & M4OSA_kFileRead)
{
strncat((char *)mode, (const char *)pReadString, (size_t)1);
}
else if(fileModeAccess & M4OSA_kFileWrite)
{
strncat((char *)mode, (const char *)pWriteString, (size_t)1);
}
if((fileModeAccess & M4OSA_kFileRead)&&(fileModeAccess & M4OSA_kFileWrite))
{
strncat((char *)mode,(const char *)pPlusString, (size_t)1);
}
}
if(!(fileModeAccess & M4OSA_kFileIsTextMode))
{
strncat((char *)mode, (const char *)pBinaryString,(size_t)1);
}
/*Open the file*/
#ifdef UTF_CONVERSION
/*Open the converted path*/
pFileHandler = fopen((const char *)tempConversionBuf, (const char *)mode);
/*Free the temporary decoded buffer*/
free(tempConversionBuf);
#else /* UTF_CONVERSION */
pFileHandler = fopen((const char *)pUrl, (const char *)mode);
#endif /* UTF_CONVERSION */
if (M4OSA_NULL == pFileHandler)
{
switch(errno)
{
case ENOENT:
{
M4OSA_DEBUG(M4ERR_FILE_NOT_FOUND, "M4OSA_fileCommonOpen: No such file or directory");
M4OSA_TRACE1_1("File not found: %s", pUrl);
return M4ERR_FILE_NOT_FOUND;
}
case EACCES:
{
M4OSA_DEBUG(M4ERR_FILE_LOCKED, "M4OSA_fileCommonOpen: Permission denied");
return M4ERR_FILE_LOCKED;
}
case EINVAL:
{
M4OSA_DEBUG(M4ERR_FILE_BAD_MODE_ACCESS, "M4OSA_fileCommonOpen: Invalid Argument");
return M4ERR_FILE_BAD_MODE_ACCESS;
}
case EMFILE:
case ENOSPC:
case ENOMEM:
{
M4OSA_DEBUG(M4ERR_ALLOC, "M4OSA_fileCommonOpen: Too many open files");
return M4ERR_ALLOC;
}
default:
{
M4OSA_DEBUG(M4ERR_NOT_IMPLEMENTED, "M4OSA_fileCommonOpen");
return M4ERR_NOT_IMPLEMENTED;
}
}
}
/* Allocate the file context */
pFileContext = (M4OSA_FileContext*) M4OSA_32bitAlignedMalloc(sizeof(M4OSA_FileContext),
core_id, (M4OSA_Char*)"M4OSA_fileCommonOpen: file context");
if (M4OSA_NULL == pFileContext)
{
fclose(pFileHandler);
M4OSA_DEBUG(M4ERR_ALLOC, "M4OSA_fileCommonOpen");
return M4ERR_ALLOC;
}
pFileContext->file_desc = pFileHandler;
#ifndef ANDROID_DEFAULT_CODE
M4OSA_TRACE1_2("open file %s:%x", (char*)pUrl, pFileHandler);
#endif
pFileContext->access_mode = fileModeAccess;
pFileContext->current_seek = SeekNone;
pFileContext->b_is_end_of_file = M4OSA_FALSE;
/**
* Note: Never use this expression "i = (value1 == value2) ? x: y;"
* because that doens't compile on other platforms (ADS for example)
* Use: if(value1 == value2)
* { i= x; ..etc
*/
pFileContext->coreID_write = 0;
pFileContext->coreID_read = 0;
pFileContext->m_DescrModeAccess = M4OSA_kDescNoneAccess;
if (M4OSA_FILE_READER == core_id)
{
pFileContext->coreID_read = core_id;
pFileContext->m_DescrModeAccess = M4OSA_kDescReadAccess;
}
else if (M4OSA_FILE_WRITER == core_id)
{
pFileContext->coreID_write = core_id;
pFileContext->m_DescrModeAccess = M4OSA_kDescWriteAccess;
}
pFileContext->read_position = 0;
pFileContext->write_position = 0;
/* Allocate the memory to store the URL string */
pFileContext->url_name = (M4OSA_Char*) M4OSA_32bitAlignedMalloc(strlen((const char *)pUrl)+1,
core_id, (M4OSA_Char*)"M4OSA_fileCommonOpen: URL name");
if (M4OSA_NULL == pFileContext->url_name)
{
fclose(pFileHandler);
free(pFileContext);
M4OSA_DEBUG(M4ERR_ALLOC, "M4OSA_fileCommonOpen");
return M4ERR_ALLOC;
}
M4OSA_chrNCopy(pFileContext->url_name, pUrl, strlen((const char *)pUrl)+1);
/* Get the file name */
err = M4OSA_fileCommonGetFilename(pUrl, &pFileContext->file_name);
if(M4NO_ERROR != err)
{
fclose(pFileHandler);
free(pFileContext->url_name);
free(pFileContext);
M4OSA_DEBUG(err, "M4OSA_fileCommonOpen");
return err;
}
#ifdef M4OSA_FILE_BLOCK_WITH_SEMAPHORE
M4OSA_semaphoreOpen(&(pFileContext->semaphore_context), 1); /* Allocate the semaphore */
#endif /* M4OSA_FILE_BLOCK_WITH_SEMAPHORE */
#ifdef USE_STAGEFRIGHT_CODECS
// Workaround for file system bug on Stingray/Honeycomb where a file re-created will keep
// the original file's size filled with 0s. Do not seek to the end to avoid ill effects
if(fileModeAccess & M4OSA_kFileAppend) {
/* Get the file size */
iSavePos = ftell(pFileHandler); /* 1- Check the first position */
fseek(pFileHandler, 0, SEEK_END); /* 2- Go to the end of the file*/
iSize = ftell(pFileHandler); /* 3- Check the file size */
fseek(pFileHandler, iSavePos, SEEK_SET);/* 4- go to the first position */
} else {
iSize = 0;
}
#else /* USE_STAGEFRIGHT_CODECS */
/* Get the file size */
iSavePos = ftell(pFileHandler); /* 1- Check the first position */
fseek(pFileHandler, 0, SEEK_END); /* 2- Go to the end of the file*/
iSize = ftell(pFileHandler); /* 3- Check the file size */
fseek(pFileHandler, iSavePos, SEEK_SET);/* 4- go to the first position */
#endif /* USE_STAGEFRIGHT_CODECS */
/* Warning possible overflow if the file is higher than 2GBytes */
pFileContext->file_size = iSize;
*pContext = pFileContext;
return M4NO_ERROR;
}
void*
videoEditJava_getString(
bool* pResult,
JNIEnv* pEnv,
jobject object,
jfieldID stringFieldId,
M4OSA_UInt32* pLength)
{
void* pString = M4OSA_NULL;
jstring string = NULL;
M4OSA_UInt32 length = 0;
M4OSA_Char* pLocal = M4OSA_NULL;
M4OSA_ERR result = M4NO_ERROR;
// Check if the previous action succeeded.
if (*pResult)
{
// Log the function call.
VIDEOEDIT_LOG_FUNCTION(ANDROID_LOG_INFO, "VIDEO_EDITOR_JAVA", "videoEditJava_getString()");
// Check if an object containing a string was specified.
if (NULL != stringFieldId)
{
// Retrieve the string object.
string = (jstring)pEnv->GetObjectField(object, stringFieldId);
// Clear any resulting exceptions.
pEnv->ExceptionClear();
}
else
{
// The string itself was specified.
string = (jstring)object;
}
// Check if the string could be retrieved.
if (NULL != string)
{
// Get a local copy of the string.
pLocal = (M4OSA_Char*)pEnv->GetStringUTFChars(string, M4OSA_NULL);
if (M4OSA_NULL != pLocal)
{
// Determine the length of the path
// (add one extra character for the zero terminator).
length = strlen((const char *)pLocal) + 1;
// Allocate memory for the string.
pString = videoEditOsal_alloc(pResult, pEnv, length, "String");
if (*pResult)
{
// Copy the string.
result = M4OSA_chrNCopy((M4OSA_Char*)pString, pLocal, length);
// Check if the copy succeeded.
videoEditJava_checkAndThrowRuntimeException(pResult, pEnv,
(M4NO_ERROR != result), result);
// Check if the string could not be copied.
if (!(*pResult))
{
// Free the allocated memory.
videoEditOsal_free(pString);
pString = M4OSA_NULL;
}
}
// Release the local copy of the string.
pEnv->ReleaseStringUTFChars(string, (const char *)pLocal);
}
}
// Check if the string was empty or could be copied.
if (*pResult)
{
// Check if the length was requested.
if (M4OSA_NULL != pLength)
{
// Return the length.
(*pLength) = length;
}
}
}
// Return the string.
return(pString);
}