Library for Skeleton of SD card player. SD カードプレーヤのための骨組みとして使うためのライブラリ.このライブラリを登録した際のプログラム:「F746_SD_Player_Demo」
Dependencies: SDFileSystem_Warning_Fixed
Dependents: F746_SD_Player_Demo F746_SD_VarableFilter F746_SD_GraphicEqualizer F746_MySoundMachine ... more
SD_WavReader.hpp@0:d310bb78455d, 2016-08-15 (annotated)
- Committer:
- MikamiUitOpen
- Date:
- Mon Aug 15 04:38:45 2016 +0000
- Revision:
- 0:d310bb78455d
- Child:
- 2:511479736d6e
1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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MikamiUitOpen | 0:d310bb78455d | 1 | //-------------------------------------------------------------- |
MikamiUitOpen | 0:d310bb78455d | 2 | // SD_WavReader class ---- Header |
MikamiUitOpen | 0:d310bb78455d | 3 | // SD カードの *.wav ファイルの内容を読み出す |
MikamiUitOpen | 0:d310bb78455d | 4 | // 以下のフォーマット以外は扱わない |
MikamiUitOpen | 0:d310bb78455d | 5 | // PCM,16 ビットステレオ,標本化周波数 44.1 kHz |
MikamiUitOpen | 0:d310bb78455d | 6 | // |
MikamiUitOpen | 0:d310bb78455d | 7 | // 2016/07/12, Copyright (c) 2016 MIKAMI, Naoki |
MikamiUitOpen | 0:d310bb78455d | 8 | //-------------------------------------------------------------- |
MikamiUitOpen | 0:d310bb78455d | 9 | |
MikamiUitOpen | 0:d310bb78455d | 10 | #ifndef SD_WAV_READER_HPP |
MikamiUitOpen | 0:d310bb78455d | 11 | #define SD_WAV_READER_HPP |
MikamiUitOpen | 0:d310bb78455d | 12 | |
MikamiUitOpen | 0:d310bb78455d | 13 | #include "SDFileSystem.h" |
MikamiUitOpen | 0:d310bb78455d | 14 | #include "BlinkLabel.hpp" |
MikamiUitOpen | 0:d310bb78455d | 15 | #include "Array.hpp" |
MikamiUitOpen | 0:d310bb78455d | 16 | #include <string> |
MikamiUitOpen | 0:d310bb78455d | 17 | |
MikamiUitOpen | 0:d310bb78455d | 18 | namespace Mikami |
MikamiUitOpen | 0:d310bb78455d | 19 | { |
MikamiUitOpen | 0:d310bb78455d | 20 | class SD_WavReader |
MikamiUitOpen | 0:d310bb78455d | 21 | { |
MikamiUitOpen | 0:d310bb78455d | 22 | public: |
MikamiUitOpen | 0:d310bb78455d | 23 | SD_WavReader(int32_t bufferSize); |
MikamiUitOpen | 0:d310bb78455d | 24 | virtual ~SD_WavReader(); |
MikamiUitOpen | 0:d310bb78455d | 25 | |
MikamiUitOpen | 0:d310bb78455d | 26 | void Open(const string fileName); |
MikamiUitOpen | 0:d310bb78455d | 27 | |
MikamiUitOpen | 0:d310bb78455d | 28 | void Close() { fclose(fp_); } |
MikamiUitOpen | 0:d310bb78455d | 29 | |
MikamiUitOpen | 0:d310bb78455d | 30 | // ファイルのヘッダ読み込み |
MikamiUitOpen | 0:d310bb78455d | 31 | // 戻り値: *.wav で,16 ビットステレオ, |
MikamiUitOpen | 0:d310bb78455d | 32 | // 標本化周波数:44.1 kHz の場合 true |
MikamiUitOpen | 0:d310bb78455d | 33 | bool IsWavFile(); |
MikamiUitOpen | 0:d310bb78455d | 34 | |
MikamiUitOpen | 0:d310bb78455d | 35 | // ファイルからステレオデータの取得 |
MikamiUitOpen | 0:d310bb78455d | 36 | void ReadStereo(Array<int16_t>& dataL, Array<int16_t>& dataR); |
MikamiUitOpen | 0:d310bb78455d | 37 | |
MikamiUitOpen | 0:d310bb78455d | 38 | // ファイルからデータをモノラルに変換しての取得 |
MikamiUitOpen | 0:d310bb78455d | 39 | void ReadAndToMono(Array<int16_t>& data); |
MikamiUitOpen | 0:d310bb78455d | 40 | |
MikamiUitOpen | 0:d310bb78455d | 41 | // データサイズ(標本化点の数)の取得 |
MikamiUitOpen | 0:d310bb78455d | 42 | int32_t GetSize(); |
MikamiUitOpen | 0:d310bb78455d | 43 | |
MikamiUitOpen | 0:d310bb78455d | 44 | private: |
MikamiUitOpen | 0:d310bb78455d | 45 | const string STR_; |
MikamiUitOpen | 0:d310bb78455d | 46 | |
MikamiUitOpen | 0:d310bb78455d | 47 | struct WaveFormatEx |
MikamiUitOpen | 0:d310bb78455d | 48 | { |
MikamiUitOpen | 0:d310bb78455d | 49 | uint16_t wFormatTag; // 1: PCM |
MikamiUitOpen | 0:d310bb78455d | 50 | uint16_t nChannels; // 1:モノラル,2: ステレオ |
MikamiUitOpen | 0:d310bb78455d | 51 | uint32_t nSamplesPerSec; // 標本化周波数 (Hz) |
MikamiUitOpen | 0:d310bb78455d | 52 | uint32_t nAvgBytesPerSec; // 転送速度 (bytes/s) |
MikamiUitOpen | 0:d310bb78455d | 53 | uint16_t nBlockAlign; // 4: 16ビットステレオの場合 |
MikamiUitOpen | 0:d310bb78455d | 54 | uint16_t wBitsPerSample; // データのビット数,8 または 16 |
MikamiUitOpen | 0:d310bb78455d | 55 | uint16_t cbSize; // PCM の場合使わない |
MikamiUitOpen | 0:d310bb78455d | 56 | }; |
MikamiUitOpen | 0:d310bb78455d | 57 | |
MikamiUitOpen | 0:d310bb78455d | 58 | SDFileSystem *sd_; |
MikamiUitOpen | 0:d310bb78455d | 59 | FILE *fp_; |
MikamiUitOpen | 0:d310bb78455d | 60 | |
MikamiUitOpen | 0:d310bb78455d | 61 | bool ok_; |
MikamiUitOpen | 0:d310bb78455d | 62 | int32_t size_; // データサイズ(標本化点の数) |
MikamiUitOpen | 0:d310bb78455d | 63 | Array<int16_t> buffer; // ステレオをモノラルに変換する際の作業領域 |
MikamiUitOpen | 0:d310bb78455d | 64 | |
MikamiUitOpen | 0:d310bb78455d | 65 | void ErrorMsg(char msg[]) |
MikamiUitOpen | 0:d310bb78455d | 66 | { BlinkLabel errLabel(240, 100, msg, Label::CENTER); } |
MikamiUitOpen | 0:d310bb78455d | 67 | |
MikamiUitOpen | 0:d310bb78455d | 68 | // disallow copy constructor and assignment operator |
MikamiUitOpen | 0:d310bb78455d | 69 | SD_WavReader(const SD_WavReader&); |
MikamiUitOpen | 0:d310bb78455d | 70 | SD_WavReader& operator=(const SD_WavReader&); |
MikamiUitOpen | 0:d310bb78455d | 71 | }; |
MikamiUitOpen | 0:d310bb78455d | 72 | } |
MikamiUitOpen | 0:d310bb78455d | 73 | #endif // SD_BINARY_READER_HPP |