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diff --git a/encoder/x86/ih264e_platform_macros.h b/encoder/x86/ih264e_platform_macros.h
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+/******************************************************************************
+ *
+ * Copyright (C) 2015 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.
+ *
+ *****************************************************************************
+ * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
+*/
+/**
+ *******************************************************************************
+ * @file
+ *  ih264e_platform_macros.h
+ *
+ * @brief
+ *  Contains platform specific routines used for codec context intialization
+ *
+ * @author
+ *  ittiam
+ *
+ * @remarks
+ *  none
+ *
+ *******************************************************************************
+ */
+
+
+#ifndef IH264E_PLATFORM_MACROS_H_
+#define IH264E_PLATFORM_MACROS_H_
+
+/*****************************************************************************/
+/* Extern Function Declarations                                              */
+/*****************************************************************************/
+
+/**
+*******************************************************************************
+*
+* @brief Initialize the intra/inter/transform/deblk function pointers of
+* codec context
+*
+* @par Description: the current routine initializes the function pointers of
+* codec context basing on the architecture in use
+*
+* @param[in] ps_codec
+*  Codec context pointer
+*
+* @returns  none
+*
+* @remarks none
+*
+*******************************************************************************
+*/
+void ih264e_init_function_ptr_generic(codec_t *ps_codec);
+/**
+*******************************************************************************
+*
+* @brief Initialize the intra/inter/transform/deblk function pointers of
+* codec context
+*
+* @par Description: the current routine initializes the function pointers of
+* codec context basing on the architecture in use
+*
+* @param[in] ps_codec
+*  Codec context pointer
+*
+* @returns  none
+*
+* @remarks none
+*
+*******************************************************************************
+*/
+void ih264e_init_function_ptr_ssse3(codec_t *ps_codec);
+void ih264e_init_function_ptr_sse42(codec_t *ps_codec);
+
+/**
+*******************************************************************************
+*
+* @brief Initialize the intra/inter/transform/deblk function pointers of
+* codec context
+*
+* @par Description: the current routine initializes the function pointers of
+* codec context basing on the architecture in use
+*
+* @param[in] ps_codec
+*  Codec context pointer
+*
+* @returns  none
+*
+* @remarks none
+*
+*******************************************************************************
+*/
+void ih264e_init_function_ptr(void *pv_codec);
+
+/**
+*******************************************************************************
+*
+* @brief Determine the architecture of the encoder executing environment
+*
+* @par Description: This routine returns the architecture of the enviro-
+* ment in which the current encoder is being tested
+*
+* @param[in] void
+*
+* @returns  IV_ARCH_T
+*  architecture
+*
+* @remarks none
+*
+*******************************************************************************
+*/
+IV_ARCH_T ih264e_default_arch(void);
+
+/**
+*******************************************************************************
+*
+* @brief Data Memory Barrier, Data Synchronization Barrier
+*
+*
+* @par Description: These functions do nothing on x86 side. But on arm platforms,
+*
+* Data Memory Barrier acts as a memory barrier. It ensures that all explicit
+* memory accesses that appear in program order before the DMB instruction are
+* observed before any explicit memory accesses that appear in program order
+* after the DMB instruction. It does not affect the ordering of any other
+* instructions executing on the processor
+*
+* Data Synchronization Barrier acts as a special kind of memory barrier. No
+* instruction in program order after this instruction executes until this instruction
+* completes. This instruction completes when:
+*       1. All explicit memory accesses before this instruction complete.
+*       2. All Cache, Branch predictor and TLB maintenance operations before
+*       this instruction complete.
+*
+* @param[in] void
+*
+* @returns  void
+*
+* @remarks none
+*
+*******************************************************************************
+*/
+
+#endif /* IH264E_PLATFORM_MACROS_H_ */