baidu_media_play_m4a.h

00001 // Copyright 2017 Baidu Inc. All Rights Reserved.
00002 // Author: Chen Xihao (chenxihao@baidu.com)
00003 //
00004 // Description: Play m4a type file
00005 
00006 #ifndef BAIDU_TINYDU_IOT_OS_SRC_MEDIA_PLAYER_BAIDU_MEDIA_PLAY_M4A_H
00007 #define BAIDU_TINYDU_IOT_OS_SRC_MEDIA_PLAYER_BAIDU_MEDIA_PLAY_M4A_H
00008 
00009 #include "mp4ff.h"
00010 #include "rda_mp4.h"
00011 #include "baidu_media_type.h"
00012 
00013 namespace duer {
00014 
00015 const int M4AERR_OK = 0;
00016 const int M4AERR_MAC = -1;
00017 const int M4AERR_ARG = -2;
00018 const int M4AERR_VAL = -3;
00019 
00020 class MediaAdapter;
00021 
00022 class MediaPlayM4A {
00023 public:
00024     MediaPlayM4A(MediaAdapter* media_adapter);
00025 
00026     ~MediaPlayM4A();
00027 
00028     int m4a_file_start(MediaType type, const unsigned char* p_buff, int buff_sz);
00029 
00030     int m4a_file_play(const unsigned char* p_buff, int buff_sz);
00031 
00032     int m4a_file_end(const unsigned char* p_buff, int buff_sz);
00033 
00034     int get_m4a_file_pos();
00035 
00036 private:
00037     MediaPlayM4A(const MediaPlayM4A&);
00038 
00039     MediaPlayM4A& operator=(const MediaPlayM4A&);
00040 
00041     int m4a_header_save(const unsigned char* p_buff, int buff_sz);
00042 
00043     int m4a_header_parse();
00044 
00045     int m4a_frame_to_codec(const unsigned char* p_buff, int buff_sz);
00046 
00047     static uint32_t read_callback(void* user_data, void* buffer, uint32_t length);
00048 
00049     static uint32_t seek_callback(void* user_data, uint64_t position);
00050 
00051     static mp4ff_callback_t _s_mp4cb;
00052 
00053     FILE* _p_file_sd;
00054     int _m4a_header_size;
00055     int _buff_data_size;
00056     unsigned char* _p_buff_data;
00057     int _m4a_file_pos;
00058     bool _m4a_parse_done;
00059 
00060     int _num_samples;
00061     int _track;
00062     int _sample_id;
00063     mp4AudioSpecificConfig _mp4_asc;
00064     mp4ff_t _infile;
00065 
00066     MediaAdapter* _media_adapter;
00067 };
00068 
00069 } // namespace duer
00070 
00071 #endif // BAIDU_TINYDU_IOT_OS_SRC_MEDIA_PLAYER_BAIDU_MEDIA_PLAY_M4A_H