boting ren / Mbed 2 deprecated F746_SD_GraphicEqualizer_ren0620

revised version of F746_SD_GraphicEqualizer

Dependencies:   BSP_DISCO_F746NG F746_GUI F746_SAI_IO FrequencyResponseDrawer LCD_DISCO_F746NG SDFileSystem_Warning_Fixed TS_DISCO_F746NG mbed

Fork of F746_SD_GraphicEqualizer by 不韋 呂

MyClasses_Functions/SD_WavReader.hpp@12:87f6955b5a80, 2016-07-07 (annotated)

Committer:
edamame22
Date:
Thu Jul 07 05:58:52 2016 +0000
Revision:
12:87f6955b5a80
Parent:
10:fc6367c2ffcf 
added highlighted line for track selection

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:e953eb392151 1 //--------------------------------------------------------------
MikamiUitOpen 0:e953eb392151 2 // SD_WavReader class ---- Header
MikamiUitOpen 0:e953eb392151 3 // SD カードの *.wav ファイルの内容を読み出す
MikamiUitOpen 0:e953eb392151 4 // 以下のフォーマット以外は扱わない
MikamiUitOpen 0:e953eb392151 5 // PCM，16 ビットステレオ，標本化周波数 44.1 kHz
MikamiUitOpen 0:e953eb392151 6 //
MikamiUitOpen 0:e953eb392151 7 // 2016/04/19, Copyright (c) 2016 MIKAMI, Naoki
MikamiUitOpen 0:e953eb392151 8 //--------------------------------------------------------------
MikamiUitOpen 0:e953eb392151 9
MikamiUitOpen 0:e953eb392151 10 #ifndef SD_WAV_READER_HPP
MikamiUitOpen 0:e953eb392151 11 #define SD_WAV_READER_HPP
MikamiUitOpen 0:e953eb392151 12
MikamiUitOpen 0:e953eb392151 13 #include "SDFileSystem.h"
MikamiUitOpen 0:e953eb392151 14 #include "BlinkLabel.hpp"
MikamiUitOpen 0:e953eb392151 15 #include <string>
MikamiUitOpen 0:e953eb392151 16
MikamiUitOpen 0:e953eb392151 17 namespace Mikami
MikamiUitOpen 0:e953eb392151 18 {
MikamiUitOpen 0:e953eb392151 19 class SD_WavReader
MikamiUitOpen 0:e953eb392151 20 {
MikamiUitOpen 0:e953eb392151 21 public:
MikamiUitOpen 0:e953eb392151 22 SD_WavReader(int32_t bufferSize);
MikamiUitOpen 0:e953eb392151 23 ~SD_WavReader();
MikamiUitOpen 0:e953eb392151 24
MikamiUitOpen 0:e953eb392151 25 void Open(const string fileName);
MikamiUitOpen 0:e953eb392151 26
MikamiUitOpen 0:e953eb392151 27 void Close() { fclose(fp_); }
MikamiUitOpen 0:e953eb392151 28
MikamiUitOpen 0:e953eb392151 29 // ファイルのヘッダ (RIFFxxxxWAVEfm ) 読み込み
MikamiUitOpen 0:e953eb392151 30 // 戻り値： *.wav で，16 ビットステレオ，
MikamiUitOpen 0:e953eb392151 31 // 標本化周波数：44.1 kHz の場合 true
MikamiUitOpen 0:e953eb392151 32 bool IsWavFile();
MikamiUitOpen 0:e953eb392151 33
MikamiUitOpen 0:e953eb392151 34 // ファイルからデータの取得
MikamiUitOpen 0:e953eb392151 35 void Read(int16_t data[], uint32_t size);
MikamiUitOpen 0:e953eb392151 36
MikamiUitOpen 0:e953eb392151 37 // ファイルからデータをモノラルに変換しての取得
MikamiUitOpen 0:e953eb392151 38 void ReadAndToMono(int16_t data[], uint32_t size);
MikamiUitOpen 0:e953eb392151 39
MikamiUitOpen 0:e953eb392151 40 // データサイズ（標本化点の数）の取得
MikamiUitOpen 0:e953eb392151 41 int32_t GetSize();
edamame22 10:fc6367c2ffcf 42
edamame22 10:fc6367c2ffcf 43 // ren: show a string
edamame22 10:fc6367c2ffcf 44 /* void ren_Msg1(int pos, char msg[])
edamame22 10:fc6367c2ffcf 45 { int lin, str_ln, y_pos[7]= {0,70,130,160,190,220,250};
edamame22 10:fc6367c2ffcf 46 // char msg[501];
edamame22 10:fc6367c2ffcf 47 // strcpy(msg, str_msg.c_str());
edamame22 10:fc6367c2ffcf 48 // str_ln=str_msg.size();
edamame22 10:fc6367c2ffcf 49 // if(str_ln>500) str_ln=500;
edamame22 10:fc6367c2ffcf 50 // msg[str_ln]='\0';
edamame22 10:fc6367c2ffcf 51 if(pos<0) lin=0;
edamame22 10:fc6367c2ffcf 52 else if (pos>6) lin=6;
edamame22 10:fc6367c2ffcf 53 else lin=pos;
edamame22 10:fc6367c2ffcf 54 Label renLabel(0, y_pos[lin], msg, Label::LEFT,Font20);
edamame22 10:fc6367c2ffcf 55 }
edamame22 10:fc6367c2ffcf 56 */
MikamiUitOpen 0:e953eb392151 57 private:
MikamiUitOpen 0:e953eb392151 58 const string STR_;
MikamiUitOpen 0:e953eb392151 59
MikamiUitOpen 0:e953eb392151 60 struct WaveFormatEx
MikamiUitOpen 0:e953eb392151 61 {
MikamiUitOpen 0:e953eb392151 62 uint16_t wFormatTag; // 1: PCM
MikamiUitOpen 0:e953eb392151 63 uint16_t nChannels; // 1：モノラル，2: ステレオ
MikamiUitOpen 0:e953eb392151 64 uint32_t nSamplesPerSec; // 標本化周波数 (Hz)
MikamiUitOpen 0:e953eb392151 65 uint32_t nAvgBytesPerSec; // 転送速度 (bytes/s)
MikamiUitOpen 0:e953eb392151 66 uint16_t nBlockAlign; // 4: 16ビットステレオの場合
MikamiUitOpen 0:e953eb392151 67 uint16_t wBitsPerSample; // データのビット数，8 または 16
MikamiUitOpen 0:e953eb392151 68 uint16_t cbSize;
MikamiUitOpen 0:e953eb392151 69 };
MikamiUitOpen 0:e953eb392151 70
MikamiUitOpen 0:e953eb392151 71 SDFileSystem *sd_;
MikamiUitOpen 0:e953eb392151 72 FILE *fp_;
MikamiUitOpen 0:e953eb392151 73
MikamiUitOpen 0:e953eb392151 74 bool ok_;
MikamiUitOpen 0:e953eb392151 75 int32_t size_; // モノラルデータのサイズ
MikamiUitOpen 0:e953eb392151 76 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:e953eb392151 77
MikamiUitOpen 0:e953eb392151 78 void ErrorMsg(char msg[])
MikamiUitOpen 0:e953eb392151 79 { BlinkLabel errLabel(240, 100, msg, Label::CENTER); }
MikamiUitOpen 0:e953eb392151 80
MikamiUitOpen 0:e953eb392151 81 // disallow copy constructor and assignment operator
MikamiUitOpen 0:e953eb392151 82 SD_WavReader(const SD_WavReader&);
MikamiUitOpen 0:e953eb392151 83 SD_WavReader& operator=(const SD_WavReader&);
MikamiUitOpen 0:e953eb392151 84 };
MikamiUitOpen 0:e953eb392151 85 }
MikamiUitOpen 0:e953eb392151 86 #endif // SD_BINARY_READER_HPP