不韋 呂 / Mbed 2 deprecated F746_SD_WavPlayer

Output the audio signal with filtering by IIR filter in the *.wav file on the SD card using onboard CODEC. SD カードの *.wav ファイルのオーディオ信号を遮断周波数可変の IIR フィルタを通して，ボードに搭載されているCODEC で出力する．

Dependencies:   BSP_DISCO_F746NG F746_GUI LCD_DISCO_F746NG SDFileSystem_Warning_Fixed TS_DISCO_F746NG mbed FrequencyResponseDrawer F746_SAI_IO Array_Matrix

MyClasses_Functions/FileSelectorWav.cpp@11:769d986c10fa, 2016-07-04 (annotated)

Committer:
MikamiUitOpen
Date:
Mon Jul 04 05:59:44 2016 +0000
Revision:
11:769d986c10fa
12

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 11:769d986c10fa 1 //--------------------------------------------------------------
MikamiUitOpen 11:769d986c10fa 2 // FileSelector class
MikamiUitOpen 11:769d986c10fa 3 // SD カード内のファイル名の一覧を表示し，ファイルを選択する
MikamiUitOpen 11:769d986c10fa 4 //
MikamiUitOpen 11:769d986c10fa 5 // 2016/06/30, Copyright (c) 2016 MIKAMI, Naoki
MikamiUitOpen 11:769d986c10fa 6 //--------------------------------------------------------------
MikamiUitOpen 11:769d986c10fa 7
MikamiUitOpen 11:769d986c10fa 8 #include "FileSelectorWav.hpp"
MikamiUitOpen 11:769d986c10fa 9
MikamiUitOpen 11:769d986c10fa 10 namespace Mikami
MikamiUitOpen 11:769d986c10fa 11 {
MikamiUitOpen 11:769d986c10fa 12 bool FileSelector::CreateTable()
MikamiUitOpen 11:769d986c10fa 13 {
MikamiUitOpen 11:769d986c10fa 14 DIR* dp = opendir("/sd");
MikamiUitOpen 11:769d986c10fa 15 fileCount_ = 0;
MikamiUitOpen 11:769d986c10fa 16 if (dp != NULL)
MikamiUitOpen 11:769d986c10fa 17 {
MikamiUitOpen 11:769d986c10fa 18 dirent* entry;
MikamiUitOpen 11:769d986c10fa 19 for (int n=0; n<256; n++)
MikamiUitOpen 11:769d986c10fa 20 {
MikamiUitOpen 11:769d986c10fa 21 entry = readdir(dp);
MikamiUitOpen 11:769d986c10fa 22 if (entry == NULL) break;
MikamiUitOpen 11:769d986c10fa 23
MikamiUitOpen 11:769d986c10fa 24 string strName = entry->d_name;
MikamiUitOpen 11:769d986c10fa 25 if ( (strName.find(".wav") != string::npos) ||
MikamiUitOpen 11:769d986c10fa 26 (strName.find(".WAV") != string::npos) )
MikamiUitOpen 11:769d986c10fa 27 {
MikamiUitOpen 11:769d986c10fa 28 sdReader_.Open(strName); // ファイルオープン
MikamiUitOpen 11:769d986c10fa 29
MikamiUitOpen 11:769d986c10fa 30 // PCM，16 ビットステレオ，標本化周波数 44.1 kHz 以外のファイルは除外
MikamiUitOpen 11:769d986c10fa 31 if (sdReader_.IsWavFile())
MikamiUitOpen 11:769d986c10fa 32 fileNames_[fileCount_++] = strName;
MikamiUitOpen 11:769d986c10fa 33 sdReader_.Close();
MikamiUitOpen 11:769d986c10fa 34 }
MikamiUitOpen 11:769d986c10fa 35
MikamiUitOpen 11:769d986c10fa 36 if (fileCount_ >= MAX_FILES_) break;
MikamiUitOpen 11:769d986c10fa 37 }
MikamiUitOpen 11:769d986c10fa 38 closedir(dp);
MikamiUitOpen 11:769d986c10fa 39 }
MikamiUitOpen 11:769d986c10fa 40 else
MikamiUitOpen 11:769d986c10fa 41 return false;
MikamiUitOpen 11:769d986c10fa 42
MikamiUitOpen 11:769d986c10fa 43 if (fileCount_ == 0) return false;
MikamiUitOpen 11:769d986c10fa 44
MikamiUitOpen 11:769d986c10fa 45 if (rect_ != NULL) delete rect_;
MikamiUitOpen 11:769d986c10fa 46 Array<string> nonString(fileCount_, "");
MikamiUitOpen 11:769d986c10fa 47 rect_ = new ButtonGroup(X_, Y_, W_H_, W_H_, fileCount_,
MikamiUitOpen 11:769d986c10fa 48 nonString, 0, V_L_-W_H_, 1,
MikamiUitOpen 11:769d986c10fa 49 -1, Font12, 0, GuiBase::ENUM_BACK,
MikamiUitOpen 11:769d986c10fa 50 BASE_COLOR_, TOUCHED_COLOR_);
MikamiUitOpen 11:769d986c10fa 51 for (int n=0; n<fileCount_; n++) rect_->Erase(n);
MikamiUitOpen 11:769d986c10fa 52 CreateLabels();
MikamiUitOpen 11:769d986c10fa 53 prevFileCount_ = fileCount_;
MikamiUitOpen 11:769d986c10fa 54 return true;
MikamiUitOpen 11:769d986c10fa 55 }
MikamiUitOpen 11:769d986c10fa 56
MikamiUitOpen 11:769d986c10fa 57 // ファイルを選択する
MikamiUitOpen 11:769d986c10fa 58 bool FileSelector::Select(string &fileName)
MikamiUitOpen 11:769d986c10fa 59 {
MikamiUitOpen 11:769d986c10fa 60 int n;
MikamiUitOpen 11:769d986c10fa 61 if (rect_->GetTouchedNumber(n))
MikamiUitOpen 11:769d986c10fa 62 {
MikamiUitOpen 11:769d986c10fa 63 fileNameLabels_[n]->Draw(GetFileNameNoExt(n), TOUCHED_COLOR_);
MikamiUitOpen 11:769d986c10fa 64 if ((prev_ >= 0) && (prev_ != n))
MikamiUitOpen 11:769d986c10fa 65 fileNameLabels_[prev_]->Draw(GetFileNameNoExt(prev_));
MikamiUitOpen 11:769d986c10fa 66 prev_ = n;
MikamiUitOpen 11:769d986c10fa 67 fileName = fileNames_[n];
MikamiUitOpen 11:769d986c10fa 68 return true;
MikamiUitOpen 11:769d986c10fa 69 }
MikamiUitOpen 11:769d986c10fa 70 else
MikamiUitOpen 11:769d986c10fa 71 return false;
MikamiUitOpen 11:769d986c10fa 72 }
MikamiUitOpen 11:769d986c10fa 73
MikamiUitOpen 11:769d986c10fa 74 // ファイルの一覧の表示
MikamiUitOpen 11:769d986c10fa 75 void FileSelector::DisplayFileList(bool sortEnable)
MikamiUitOpen 11:769d986c10fa 76 {
MikamiUitOpen 11:769d986c10fa 77 if (sortEnable)
MikamiUitOpen 11:769d986c10fa 78 std::sort((string *)fileNames_,
MikamiUitOpen 11:769d986c10fa 79 (string *)fileNames_+fileCount_);
MikamiUitOpen 11:769d986c10fa 80
MikamiUitOpen 11:769d986c10fa 81 Erase(X_, Y_, MAX_NAME_LENGTH_*((sFONT *)(&Font16))->Width, 272-Y_);
MikamiUitOpen 11:769d986c10fa 82 rect_->DrawAll();
MikamiUitOpen 11:769d986c10fa 83 for (int n=0; n<fileCount_; n++)
MikamiUitOpen 11:769d986c10fa 84 fileNameLabels_[n]->Draw(GetFileNameNoExt(n));
MikamiUitOpen 11:769d986c10fa 85 }
MikamiUitOpen 11:769d986c10fa 86
MikamiUitOpen 11:769d986c10fa 87 // ファイルの一覧の消去
MikamiUitOpen 11:769d986c10fa 88 void FileSelector::Erase(uint16_t x, uint16_t y, uint16_t width, uint16_t height,
MikamiUitOpen 11:769d986c10fa 89 uint32_t color)
MikamiUitOpen 11:769d986c10fa 90 {
MikamiUitOpen 11:769d986c10fa 91 lcd_->SetTextColor(color);
MikamiUitOpen 11:769d986c10fa 92 lcd_->FillRect(x, y, width, height);
MikamiUitOpen 11:769d986c10fa 93 }
MikamiUitOpen 11:769d986c10fa 94
MikamiUitOpen 11:769d986c10fa 95 // Label を生成
MikamiUitOpen 11:769d986c10fa 96 void FileSelector::CreateLabels()
MikamiUitOpen 11:769d986c10fa 97 {
MikamiUitOpen 11:769d986c10fa 98 fileNameLabels_.SetSize(fileCount_);
MikamiUitOpen 11:769d986c10fa 99
MikamiUitOpen 11:769d986c10fa 100 for (int n=0; n<fileCount_; n++)
MikamiUitOpen 11:769d986c10fa 101 fileNameLabels_[n] = new Label(X_+30, Y_+5+V_L_*n, "",
MikamiUitOpen 11:769d986c10fa 102 Label::LEFT, Font16,
MikamiUitOpen 11:769d986c10fa 103 BASE_COLOR_);
MikamiUitOpen 11:769d986c10fa 104 }
MikamiUitOpen 11:769d986c10fa 105
MikamiUitOpen 11:769d986c10fa 106 // 拡張子を削除した文字列を取得
MikamiUitOpen 11:769d986c10fa 107 string FileSelector::GetFileNameNoExt(int n)
MikamiUitOpen 11:769d986c10fa 108 {
MikamiUitOpen 11:769d986c10fa 109 string name = fileNames_[n];
MikamiUitOpen 11:769d986c10fa 110 name.erase(name.find("."));
MikamiUitOpen 11:769d986c10fa 111 return name.substr(0, MAX_NAME_LENGTH_);
MikamiUitOpen 11:769d986c10fa 112 }
MikamiUitOpen 11:769d986c10fa 113
MikamiUitOpen 11:769d986c10fa 114 }