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diff --git a/libvideoeditor/osal/src/M4OSA_Random.c b/libvideoeditor/osal/src/M4OSA_Random.c
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+/*
+ * Copyright (C) 2004-2011 NXP Software
+ * 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 M4PSW_Trace.c
+ * @brief Trace function for trace macros
+ * @note This file gives the implementation of the trace function used
+ * in the trace instrumentation macros
+ ************************************************************************
+*/
+
+#include <stdio.h> /*for printf */
+#include <stdarg.h> /* ANSI C macros and defs for variable args */
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "M4OSA_Types.h"
+#include "M4OSA_Error.h"
+#include "M4OSA_Memory.h"
+#include "M4OSA_Mutex.h"
+/**
+ ************************************************************************
+ * @fn M4OSA_ERR M4OSA_randInit()
+ * @brief this function initialize the number generator
+ * this function must be called once before any call to M4OSA_rand()
+ * need the stdlib and time libraries
+ * @note
+ * @param
+ * @return M4NO_ERROR
+ ************************************************************************
+*/
+
+M4OSA_ERR M4OSA_randInit()
+{
+ int i;
+
+ srand(time(NULL));
+
+ /* Windows' rand is rotten, the first generated value after the init
+ above is not random enough, so let's shake things a little... */
+
+ for (i=0; i<100; i++) rand();
+
+ return M4NO_ERROR;
+}
+/**
+ ************************************************************************
+ * @fn M4OSA_ERR M4OSA_rand(M4OSA_Int32* out_value, M4OSA_UInt32 max_value)
+ * @brief This function gives a random number between 1 and max_value
+ * (inclusive) with approximately equal probability, and
+ * returns this number in out_value. For instance, a max_value
+ * of 6 will simulate a fair 6-sided dice roll.
+ * @note
+ * @param out_value (OUT): on return, points to random result
+ * @param max_value (IN): max expected value
+ * @return M4NO_ERROR
+ ************************************************************************
+*/
+
+M4OSA_ERR M4OSA_rand(M4OSA_Int32* out_value, M4OSA_UInt32 max_value)
+{
+ if( (out_value == M4OSA_NULL) || (max_value < 1) )
+ {
+ return M4ERR_PARAMETER;
+ }
+
+ (*out_value) = rand();
+ /* notice this algorithm will only work for max_values such that the multiplication
+ won't overflow, which means that max_value typically shouldn't go over the range of
+ an Int16. */
+ (*out_value) = (((*out_value) * max_value) / ((M4OSA_UInt32)RAND_MAX + 1)) + 1;
+
+ return M4NO_ERROR;
+}
+
+