diff --git a/decoder/iv.h b/decoder/iv.h
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+++ b/decoder/iv.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
+*  iv.h
+*
+* @brief
+*  This file contains all the necessary structure and  enumeration
+* definitions needed for the Application  Program Interface(API) of the
+* Ittiam Video and Image  codecs
+*
+* @author
+*  100239(RCY)
+*
+* @par List of Functions:
+*
+* @remarks
+*  None
+*
+*******************************************************************************
+*/
+
+
+#ifndef _IV_H
+#define _IV_H
+
+/*****************************************************************************/
+/* Constant Macros                                                           */
+/*****************************************************************************/
+
+
+/*****************************************************************************/
+/* Typedefs                                                                  */
+/*****************************************************************************/
+
+/*****************************************************************************/
+/* Enums                                                                     */
+/*****************************************************************************/
+
+
+/* IV_API_CALL_STATUS_T:This is only to return the FAIL/PASS status to the  */
+/* application for the current API call                                     */
+
+typedef enum {
+    IV_STATUS_NA                                = 0x7FFFFFFF,
+    IV_SUCCESS                                  = 0x0,
+    IV_FAIL                                     = 0x1,
+}IV_API_CALL_STATUS_T;
+
+/* IV_MEM_TYPE_T: This Enumeration defines the type of memory (Internal/Ext */
+/* -ernal) along with the cacheable/non-cacheable attributes                */
+
+typedef enum {
+    IV_NA_MEM_TYPE                              = 0x7FFFFFFF,
+    IV_INTERNAL_CACHEABLE_PERSISTENT_MEM        = 0x1,
+    IV_INTERNAL_CACHEABLE_SCRATCH_MEM           = 0x2,
+    IV_EXTERNAL_CACHEABLE_PERSISTENT_MEM        = 0x3,
+    IV_EXTERNAL_CACHEABLE_SCRATCH_MEM           = 0x4,
+    IV_INTERNAL_NONCACHEABLE_PERSISTENT_MEM     = 0x5,
+    IV_INTERNAL_NONCACHEABLE_SCRATCH_MEM        = 0x6,
+    IV_EXTERNAL_NONCACHEABLE_PERSISTENT_MEM     = 0x7,
+    IV_EXTERNAL_NONCACHEABLE_SCRATCH_MEM        = 0x8
+}IV_MEM_TYPE_T;
+
+/* IV_COLOR_FORMAT_T: This enumeration lists all the color formats which    */
+/* finds usage in video/image codecs                                        */
+
+typedef enum {
+    IV_CHROMA_NA                            = 0x7FFFFFFF,
+    IV_YUV_420P                             = 0x1,
+    IV_YUV_422P                             = 0x2,
+    IV_420_UV_INTL                          = 0x3,
+    IV_YUV_422IBE                           = 0x4,
+    IV_YUV_422ILE                           = 0x5,
+    IV_YUV_444P                             = 0x6,
+    IV_YUV_411P                             = 0x7,
+    IV_GRAY                                 = 0x8,
+    IV_RGB_565                              = 0x9,
+    IV_RGB_24                               = 0xa,
+    IV_YUV_420SP_UV                         = 0xb,
+    IV_YUV_420SP_VU                         = 0xc,
+    IV_RGBA_8888                            = 0xd
+}IV_COLOR_FORMAT_T;
+
+/* IV_PICTURE_CODING_TYPE_T: VOP/Frame coding type Enumeration              */
+
+typedef enum {
+    IV_NA_FRAME                             = 0x7FFFFFFF,
+    IV_I_FRAME                              = 0x0,
+    IV_P_FRAME                              = 0x1,
+    IV_B_FRAME                              = 0x2,
+    IV_IDR_FRAME                            = 0x3,
+    IV_II_FRAME                             = 0x4,
+    IV_IP_FRAME                             = 0x5,
+    IV_IB_FRAME                             = 0x6,
+    IV_PI_FRAME                             = 0x7,
+    IV_PP_FRAME                             = 0x8,
+    IV_PB_FRAME                             = 0x9,
+    IV_BI_FRAME                             = 0xa,
+    IV_BP_FRAME                             = 0xb,
+    IV_BB_FRAME                             = 0xc,
+    IV_MBAFF_I_FRAME                        = 0xd,
+    IV_MBAFF_P_FRAME                        = 0xe,
+    IV_MBAFF_B_FRAME                        = 0xf,
+    IV_MBAFF_IDR_FRAME                      = 0x10,
+    IV_NOT_CODED_FRAME                      = 0x11,
+    IV_FRAMETYPE_DEFAULT                    = IV_I_FRAME
+}IV_PICTURE_CODING_TYPE_T;
+
+/* IV_FLD_TYPE_T: field type Enumeration                                    */
+
+typedef enum {
+    IV_NA_FLD                               = 0x7FFFFFFF,
+    IV_TOP_FLD                              = 0x0,
+    IV_BOT_FLD                              = 0x1,
+    IV_FLD_TYPE_DEFAULT                     = IV_TOP_FLD
+}IV_FLD_TYPE_T;
+
+/* IV_CONTENT_TYPE_T: Video content type                                     */
+
+typedef enum {
+    IV_CONTENTTYPE_NA                       = 0x7FFFFFFF,
+    IV_PROGRESSIVE                          = 0x0,
+    IV_INTERLACED                           = 0x1,
+    IV_PROGRESSIVE_FRAME                    = 0x2,
+    IV_INTERLACED_FRAME                     = 0x3,
+    IV_INTERLACED_TOPFIELD                  = 0x4,
+    IV_INTERLACED_BOTTOMFIELD               = 0x5,
+    IV_CONTENTTYPE_DEFAULT                  = IV_PROGRESSIVE,
+}IV_CONTENT_TYPE_T;
+
+/* IV_API_COMMAND_TYPE_T:API command type                                   */
+typedef enum {
+    IV_CMD_NA                           = 0x7FFFFFFF,
+    IV_CMD_GET_NUM_MEM_REC              = 0x0,
+    IV_CMD_FILL_NUM_MEM_REC             = 0x1,
+    IV_CMD_RETRIEVE_MEMREC              = 0x2,
+    IV_CMD_INIT                         = 0x3,
+    IV_CMD_DUMMY_ELEMENT                = 0x4,
+}IV_API_COMMAND_TYPE_T;
+
+/*****************************************************************************/
+/* Structure                                                                 */
+/*****************************************************************************/
+
+/* IV_OBJ_T: This structure defines the handle for the codec instance        */
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * Pointer to the API function pointer table of the codec
+     */
+    void                                        *pv_fxns;
+
+    /**
+     * Pointer to the handle of the codec
+     */
+    void                                        *pv_codec_handle;
+}iv_obj_t;
+
+/* iv_mem_rec_t: This structure defines the memory record holder which will  */
+/* be used by the codec to communicate its memory requirements to the        */
+/* application through appropriate API functions                             */
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * Pointer to the memory allocated by the application
+     */
+    void                                        *pv_base;
+
+    /**
+     * u4_size of the memory to be allocated
+     */
+    UWORD32                                     u4_mem_size;
+
+    /**
+     * Alignment of the memory pointer
+     */
+    UWORD32                                     u4_mem_alignment;
+    /**
+     * Nature of the memory to be allocated
+     */
+    IV_MEM_TYPE_T                               e_mem_type;
+}iv_mem_rec_t;
+
+/* IV_YUV_BUF_T: This structure defines attributes for the yuv buffer        */
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * Pointer to Luma (Y) Buffer
+     */
+
+    void                                        *pv_y_buf;
+    /**
+     * Pointer to Chroma (Cb) Buffer
+     */
+    void                                        *pv_u_buf;
+
+    /**
+     * Pointer to Chroma (Cr) Buffer
+     */
+    void                                        *pv_v_buf;
+
+    /**
+     * Width of the Luma (Y) Buffer
+     */
+    UWORD32                                     u4_y_wd;
+
+    /**
+     * Height of the Luma (Y) Buffer
+     */
+    UWORD32                                     u4_y_ht;
+
+    /**
+     * Stride/Pitch of the Luma (Y) Buffer
+     */
+    UWORD32                                     u4_y_strd;
+
+    /**
+     * Width of the Chroma (Cb) Buffer
+     */
+    UWORD32                                     u4_u_wd;
+
+    /**
+     * Height of the Chroma (Cb) Buffer
+     */
+    UWORD32                                     u4_u_ht;
+
+    /**
+     * Stride/Pitch of the Chroma (Cb) Buffer
+     */
+    UWORD32                                     u4_u_strd;
+
+    /**
+     * Width of the Chroma (Cr) Buffer
+     */
+    UWORD32                                     u4_v_wd;
+
+    /**
+     * Height of the Chroma (Cr) Buffer
+     */
+    UWORD32                                     u4_v_ht;
+
+    /**
+     * Stride/Pitch of the Chroma (Cr) Buffer
+     */
+    UWORD32                                     u4_v_strd;
+}iv_yuv_buf_t;
+
+/*****************************************************************************/
+/*  Get Number of Memory Records                                             */
+/*****************************************************************************/
+
+/* IV_API_COMMAND_TYPE_T::e_cmd = IV_CMD_GET_NUM_MEM_REC                     */
+
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * cmd
+     */
+    IV_API_COMMAND_TYPE_T                       e_cmd;
+}iv_num_mem_rec_ip_t;
+
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * error code
+     */
+    UWORD32                                     u4_error_code;
+
+    /**
+     * num_mem_rec
+     */
+    UWORD32                                     u4_num_mem_rec;
+}iv_num_mem_rec_op_t;
+
+
+/*****************************************************************************/
+/*  Fill Memory Records                                                      */
+/*****************************************************************************/
+
+/* IV_API_COMMAND_TYPE_T::e_cmd = IV_CMD_FILL_NUM_MEM_REC                    */
+
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * cmd
+     */
+    IV_API_COMMAND_TYPE_T                       e_cmd;
+
+    /**
+     * pointer to array of memrecords structures should be filled by codec
+    with details of memory resource requirements
+     */
+    iv_mem_rec_t                                *pv_mem_rec_location;
+
+    /**
+     * maximum width for which codec should request memory requirements
+     */
+    UWORD32                                     u4_max_frm_wd;
+
+    /**
+     * maximum height for which codec should request memory requirements
+     */
+    UWORD32                                     u4_max_frm_ht;
+}iv_fill_mem_rec_ip_t;
+
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * error_code
+     */
+    UWORD32                                     u4_error_code;
+
+    /**
+     * no of memory record structures which are filled by codec
+     */
+    UWORD32                                     u4_num_mem_rec_filled;
+}iv_fill_mem_rec_op_t;
+
+
+/*****************************************************************************/
+/*  Retrieve Memory Records                                                  */
+/*****************************************************************************/
+
+/* IV_API_COMMAND_TYPE_T::e_cmd = IV_CMD_RETRIEVE_MEMREC                     */
+
+
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * cmd
+     */
+    IV_API_COMMAND_TYPE_T                       e_cmd;
+
+    /**
+     * array of structures where codec should fill with all resources(memory) with it
+     */
+    iv_mem_rec_t                                *pv_mem_rec_location;
+}iv_retrieve_mem_rec_ip_t;
+
+
+typedef struct {
+    /**
+     * u4_size of the structure
+     */
+    UWORD32                                     u4_size;
+
+    /**
+     * error_code
+     */
+    UWORD32                                     u4_error_code;
+
+    /**
+     * no of memory records filled by codec
+     */
+    UWORD32                                     u4_num_mem_rec_filled;
+}iv_retrieve_mem_rec_op_t;
+
+
+
+#endif /* _IV_H */
+