1 /****************************************************************************** 2 * * 3 * Copyright (C) 2018 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 #ifndef __fileifc_h__ 21 #define __fileifc_h__ 22 23 #ifndef INCLUDE_MP4_PARSER 24 //#define INCLUDE_MP4_PARSER 25 #endif 26 #ifdef INCLUDE_MP4_PARSER 27 /* Context structure for media frame*/ 28 typedef struct { 29 unsigned char *frame; 30 unsigned int frameLength; 31 unsigned int presentationTime; 32 } ItMp4FrameCtxt; 33 34 /* Context structure for media header*/ 35 typedef struct { 36 unsigned char *header; 37 unsigned int headerLength; 38 } ItMp4HeaderCtxt; 39 #endif 40 41 typedef struct FileWrapper { 42 #ifdef INCLUDE_MP4_PARSER 43 44 void *mp4Ctxt; 45 void *fileCtxt; 46 void *interim_buffer; 47 int avail_buffer; 48 ItMp4HeaderCtxt headerCtxt; 49 ItMp4FrameCtxt frameCtxt; 50 int header_given; 51 #endif 52 /* MPEG_2_PROFILE profile; */ 53 unsigned int isMp4File; 54 FILE *inputFile; 55 56 } FileWrapper, *FileWrapperPtr; 57 58 FileWrapperPtr FileWrapper_Open(char fileName[]); 59 int FileWrapper_Read(FileWrapperPtr transport, unsigned char *buffer, 60 int bufSize, unsigned int *len); 61 unsigned int FileWrapper_Close(FileWrapperPtr transport); 62 63 unsigned int FileWrapper_IsMp4File(FileWrapperPtr transport); 64 65 /* MP4 function declarations */ 66 67 /*File Initialization, File Header Parsing*/ 68 void *it_mp4_parser_init(void *mp4Ctxt, void *mallocAddr); 69 70 /*Extracts audio header from file*/ 71 int it_mp4_get_audio_header(void *mp4Ctxt, void *audioheader); 72 73 /*Extracts an audio frame from the file */ 74 int it_mp4_get_audio(void *mp4Ctxt, void *frameCtxt); 75 76 /*Frees allocated memory*/ 77 int it_mp4_parser_close(void *mp4); 78 79 void *it_fopen(unsigned char *file_name, unsigned char withFile, int size); 80 int it_fclose(void *itf); 81 #endif 82
