/**
************************************************************************
* @brief This method deletes a thread (identified by its context). After
* this call the thread and its context are no more useable. This
* function frees all the memory related to this thread.
* @note Before the method is called, the state is M4OSA_kThreadOpened.
* Once the method is called, the state is M4OSA_kThreadClosed.
* @param context:(IN/OUT) Context of the thread
* @return M4NO_ERROR: there is no error
* @return M4ERR_PARAMETER: at least one parameter is NULL
* @return M4ERR_STATE: this function cannot be called now
* @return M4ERR_BAD_CONTEXT: provided context is not a valid one
************************************************************************
*/
M4OSA_ERR M4OSA_threadSyncClose(M4OSA_Context context)
{
M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context;
M4OSA_ERR err_code;
M4OSA_TRACE1_1("M4OSA_threadSyncClose\t\tM4OSA_Context 0x%x", context);
M4OSA_DEBUG_IF2(context == M4OSA_NULL,
M4ERR_PARAMETER, "M4OSA_threadSyncClose");
M4OSA_DEBUG_IF2(threadContext->coreID != M4OSA_THREAD,
M4ERR_BAD_CONTEXT, "M4OSA_threadSyncClose");
M4OSA_DEBUG_IF2(threadContext->state == M4OSA_kThreadClosed,
M4ERR_BAD_CONTEXT, "M4OSA_threadSyncClose");
M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER);
if(threadContext->state != M4OSA_kThreadOpened)
{
M4OSA_mutexUnlock(threadContext->stateMutex);
M4OSA_DEBUG(M4ERR_STATE, "M4OSA_threadSyncClose");
return M4ERR_STATE;
}
threadContext->state = M4OSA_kThreadClosed;
M4OSA_mutexUnlock(threadContext->stateMutex);
err_code = M4OSA_mutexClose(threadContext->stateMutex);
if(M4OSA_ERR_IS_ERROR(err_code))
{
M4OSA_DEBUG(err_code, "M4OSA_threadSyncClose: M4OSA_mutexClose");
return err_code;
}
err_code = M4OSA_semaphoreClose(threadContext->semStartStop);
if(M4OSA_ERR_IS_ERROR(err_code))
{
M4OSA_DEBUG(err_code, "M4OSA_threadSyncClose: M4OSA_semaphoreClose");
return err_code;
}
if(threadContext->name != M4OSA_NULL)
{
free(threadContext->name);
}
free(threadContext);
return M4NO_ERROR;
}
/**
************************************************************************
* @brief This method asks the calling thread to sleep during "timeSleep"
* milliseconds.
* @note This function does not have any context.
* @param time:(IN) Time to sleep in milliseconds
* @return M4NO_ERROR: there is no error
************************************************************************
*/
M4OSA_ERR M4OSA_threadSleep(M4OSA_UInt32 time)
{
struct timespec rqtp = { 0, 0 };
struct timespec rmtp = { 0, 0 };
M4OSA_TRACE1_1("M4OSA_threadSleep\t\tM4OSA_UInt32 %d", time);
rqtp.tv_sec = (time_t)time/1000;
rqtp.tv_nsec = (time%1000) * 1000000;
nanosleep(&rqtp, &rmtp);
return M4NO_ERROR;
}
/**
************************************************************************
* @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 method deletes a semaphore (identify by its context).
* After this call the semaphore and its context is no more
* useable. This function frees all the memory related to this
* semaphore.
* @note It is an application issue to warrant no more threads are locked
* on the deleted semaphore.
* @param context:(IN/OUT) Context of the semaphore
* @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.
************************************************************************
*/
M4OSA_ERR M4OSA_semaphoreClose(M4OSA_Context context)
{
M4OSA_SemaphoreContext* semaphoreContext = (M4OSA_SemaphoreContext*)context;
M4OSA_TRACE1_1("M4OSA_semaphoreClose\t\tM4OSA_Context 0x%x", context);
M4OSA_DEBUG_IF2(context == M4OSA_NULL,
M4ERR_PARAMETER, "M4OSA_semaphoreClose");
M4OSA_DEBUG_IF2(semaphoreContext->coreID != M4OSA_SEMAPHORE,
M4ERR_BAD_CONTEXT, "M4OSA_semaphoreClose");
sem_destroy(&semaphoreContext->semaphore);
free(semaphoreContext);
return M4NO_ERROR;
}
/**
************************************************************************
* @brief This method increments the semaphore counter. The semaphore is
* identified by its context
* @note If the semaphore counter is upper than zero (after addition),
* the M4OSA_semaphoreWait call of the thread with the highest
* priority is unblocked and made ready to run.
* @note No hypotheses can be made on which thread will be unblocked
* between threads with the same priority.
* @param context:(IN/OUT) Context of the semaphore
* @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
************************************************************************
*/
M4OSA_ERR M4OSA_semaphorePost(M4OSA_Context context)
{
M4OSA_SemaphoreContext* semaphoreContext = (M4OSA_SemaphoreContext*)context;
#ifndef ANDROID_DEFAULT_CODE
M4OSA_TRACE2_1("M4OSA_semaphorePost\t\tM4OSA_Context 0x%x", context);
#else
M4OSA_TRACE1_1("M4OSA_semaphorePost\t\tM4OSA_Context 0x%x", context);
#endif
M4OSA_DEBUG_IF2(context == M4OSA_NULL,
M4ERR_PARAMETER, "M4OSA_semaphorePost");
M4OSA_DEBUG_IF2(semaphoreContext->coreID != M4OSA_SEMAPHORE,
M4ERR_BAD_CONTEXT, "M4OSA_semaphorePost");
sem_post(&semaphoreContext->semaphore);
return M4NO_ERROR;
}
/**
************************************************************************
* @brief This method stops a specified thread.
* @note This call is a blocking one up to the "M4OSA_ThreadDoIt"
* function has returned.
* Before the method is called, the state is M4OSA_kThreadRunning.
* Once the method is called, the state is M4OSA_kThreadStopping.
* Once the thread is stopped, the state is M4OSA_kThreadOpened.
* @note This method returns once the thread has been stopped. If the
* "threadStopped" optionID is not NULL, the thread will call it
* before dying.
* @param context:(IN/OUT) Context of the thread
* @return M4NO_ERROR: there is no error
* @return M4ERR_PARAMETER: at least one parameter is NULL
* @return M4ERR_STATE: this function cannot be called now
* @return M4ERR_BAD_CONTEXT: provided context is not a valid one
************************************************************************
*/
M4OSA_ERR M4OSA_threadSyncStop(M4OSA_Context context)
{
M4OSA_ThreadContext* threadContext = (M4OSA_ThreadContext*)context;
M4OSA_TRACE1_1("M4OSA_threadSyncStop\t\tM4OSA_Context 0x%x", context);
M4OSA_DEBUG_IF2(context == M4OSA_NULL,
M4ERR_PARAMETER, "M4OSA_threadSyncStop");
M4OSA_DEBUG_IF2(threadContext->coreID != M4OSA_THREAD,
M4ERR_BAD_CONTEXT, "M4OSA_threadSyncStop");
M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER);
if(threadContext->state != M4OSA_kThreadRunning)
{
M4OSA_mutexUnlock(threadContext->stateMutex);
M4OSA_DEBUG(M4ERR_STATE, "M4OSA_threadSyncStop");
return M4ERR_STATE;
}
threadContext->state = M4OSA_kThreadStopping;
M4OSA_mutexUnlock(threadContext->stateMutex);
M4OSA_semaphoreWait(threadContext->semStartStop, M4OSA_WAIT_FOREVER);
M4OSA_mutexLock(threadContext->stateMutex, M4OSA_WAIT_FOREVER);
threadContext->state = M4OSA_kThreadOpened;
M4OSA_mutexUnlock(threadContext->stateMutex);
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;
}
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;
}
/**
******************************************************************************
* M4OSA_ERR M4AIR_configure_NV12(M4OSA_Context pContext, M4AIR_Params* pParams)
* @brief This function will configure the AIR.
* @note It will set the input and output coordinates and sizes,
* and indicates if we will proceed in stripe or not.
* In case a M4AIR_get in stripe mode was on going, it will cancel this previous
* processing and reset the get process.
* @param pContext: (IN) Context identifying the instance
* @param pParams->m_bOutputStripe:(IN) Stripe mode.
* @param pParams->m_inputCoord: (IN) X,Y coordinates of the first valid pixel in input.
* @param pParams->m_inputSize: (IN) input ROI size.
* @param pParams->m_outputSize: (IN) output size.
* @return M4NO_ERROR: there is no error
* @return M4ERR_ALLOC: No more memory space to add a new effect.
* @return M4ERR_PARAMETER: pContext is M4OSA_NULL (debug only).
* @return M4ERR_AIR_FORMAT_NOT_SUPPORTED: the requested input format is not supported.
******************************************************************************
*/
M4OSA_ERR M4AIR_configure_NV12(M4OSA_Context pContext, M4AIR_Params* pParams)
{
M4AIR_InternalContext* pC = (M4AIR_InternalContext*)pContext ;
M4OSA_UInt32 i,u32_width_in, u32_width_out, u32_height_in, u32_height_out;
M4OSA_UInt32 nb_planes;
M4OSA_TRACE1_0("M4AIR_configure_NV12 start");
M4ERR_CHECK_NULL_RETURN_VALUE(M4ERR_PARAMETER, pContext);
if(M4AIR_kNV12P == pC->m_inputFormat)
{
nb_planes = 2;
}
else
{
nb_planes = 3;
}
/**< Check state */
if((M4AIR_kCreated != pC->m_state)&&(M4AIR_kConfigured != pC->m_state))
{
return M4ERR_STATE;
}
/** Save parameters */
pC->m_params = *pParams;
/* Check for the input&output width and height are even */
if(((pC->m_params.m_inputSize.m_height)&0x1) ||
((pC->m_params.m_outputSize.m_height)&0x1))
{
return M4ERR_AIR_ILLEGAL_FRAME_SIZE;
}
if(((pC->m_params.m_inputSize.m_width)&0x1)||
((pC->m_params.m_outputSize.m_width)&0x1))
{
return M4ERR_AIR_ILLEGAL_FRAME_SIZE;
}
if(((pC->m_params.m_inputSize.m_width) == (pC->m_params.m_outputSize.m_width))
&&((pC->m_params.m_inputSize.m_height) == (pC->m_params.m_outputSize.m_height)))
{
/**< No resize in this case, we will just copy input in output */
pC->m_bOnlyCopy = M4OSA_TRUE;
}
else
{
pC->m_bOnlyCopy = M4OSA_FALSE;
/**< Initialize internal variables used for resize filter */
for(i=0;i<nb_planes;i++)
{
M4OSA_TRACE1_1("Plane %d", i);
u32_width_in = pC->m_params.m_inputSize.m_width;
u32_height_in = ((i==0)||(i==2))?pC->m_params.m_inputSize.m_height:\
(pC->m_params.m_inputSize.m_height+1)>>1;
u32_width_out = pC->m_params.m_outputSize.m_width;
u32_height_out = ((i==0)||(i==2))?pC->m_params.m_outputSize.m_height:\
(pC->m_params.m_outputSize.m_height+1)>>1;
M4OSA_TRACE1_4("u32_width_in =%d, u32_height_in = %d, u32_width_out = %d, u32_height_out = %d",\
u32_width_in, u32_height_in, u32_width_out, u32_height_out);
/* Compute horizontal ratio between src and destination width.*/
if (u32_width_out >= u32_width_in)
{
if (i == 1)
{
pC->u32_x_inc[i] = ((u32_width_in-2) * 0x10000) / (u32_width_out-2);
}
else
{
pC->u32_x_inc[i] = ((u32_width_in-1) * 0x10000) / (u32_width_out-1);
}
}
else
{
pC->u32_x_inc[i] = (u32_width_in * 0x10000) / (u32_width_out);
}
/* Compute vertical ratio between src and destination height.*/
if (u32_height_out >= u32_height_in)
{
pC->u32_y_inc[i] = ((u32_height_in - 1) * 0x10000) / (u32_height_out-1);
}
else
{
pC->u32_y_inc[i] = (u32_height_in * 0x10000) / (u32_height_out);
}
/*
Calculate initial accumulator value : u32_y_accum_start.
u32_y_accum_start is coded on 15 bits, and represents a value between 0 and 0.5
*/
if (pC->u32_y_inc[i] >= 0x10000)
{
/*
Keep the fractionnal part, assimung that integer part is coded
on the 16 high bits and the fractionnal on the 15 low bits
*/
pC->u32_y_accum_start[i] = pC->u32_y_inc[i] & 0xffff;
if (!pC->u32_y_accum_start[i])
{
pC->u32_y_accum_start[i] = 0x10000;
}
pC->u32_y_accum_start[i] >>= 1;
}
else
{
pC->u32_y_accum_start[i] = 0;
}
/**< Take into account that Y coordinate can be odd
in this case we have to put a 0.5 offset
for U and V plane as there a 2 times sub-sampled vs Y*/
if((pC->m_params.m_inputCoord.m_y&0x1)&&(i==1))
{
pC->u32_y_accum_start[i] += 0x8000;
}
/*
Calculate initial accumulator value : u32_x_accum_start.
u32_x_accum_start is coded on 15 bits, and represents a value between
0 and 0.5
*/
if (pC->u32_x_inc[i] >= 0x10000)
{
pC->u32_x_accum_start[i] = pC->u32_x_inc[i] & 0xffff;
if (!pC->u32_x_accum_start[i])
{
pC->u32_x_accum_start[i] = 0x10000;
}
pC->u32_x_accum_start[i] >>= 1;
}
