不韋 呂 / F746_SD_GraphicEqualizer

Output the audio signal with filtering by graphic equalizer 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グラフィック･イコライザを通して，ボードに搭載されているCODEC で出力する．

Dependencies:   F746_GUI F746_SAI_IO SD_PlayerSkeleton FrequencyResponseDrawer

mbed_src_STM32F7/api/DirHandle.h@16:cbb726ac20d8, 2016-10-02 (annotated)

Committer:
MikamiUitOpen
Date:
Sun Oct 02 06:33:59 2016 +0000
Revision:
16:cbb726ac20d8
17

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 16:cbb726ac20d8 1 /* mbed Microcontroller Library
MikamiUitOpen 16:cbb726ac20d8 2 * Copyright (c) 2006-2013 ARM Limited
MikamiUitOpen 16:cbb726ac20d8 3 *
MikamiUitOpen 16:cbb726ac20d8 4 * Licensed under the Apache License, Version 2.0 (the "License");
MikamiUitOpen 16:cbb726ac20d8 5 * you may not use this file except in compliance with the License.
MikamiUitOpen 16:cbb726ac20d8 6 * You may obtain a copy of the License at
MikamiUitOpen 16:cbb726ac20d8 7 *
MikamiUitOpen 16:cbb726ac20d8 8 * http://www.apache.org/licenses/LICENSE-2.0
MikamiUitOpen 16:cbb726ac20d8 9 *
MikamiUitOpen 16:cbb726ac20d8 10 * Unless required by applicable law or agreed to in writing, software
MikamiUitOpen 16:cbb726ac20d8 11 * distributed under the License is distributed on an "AS IS" BASIS,
MikamiUitOpen 16:cbb726ac20d8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
MikamiUitOpen 16:cbb726ac20d8 13 * See the License for the specific language governing permissions and
MikamiUitOpen 16:cbb726ac20d8 14 * limitations under the License.
MikamiUitOpen 16:cbb726ac20d8 15 */
MikamiUitOpen 16:cbb726ac20d8 16 #ifndef MBED_DIRHANDLE_H
MikamiUitOpen 16:cbb726ac20d8 17 #define MBED_DIRHANDLE_H
MikamiUitOpen 16:cbb726ac20d8 18
MikamiUitOpen 16:cbb726ac20d8 19 #if defined(__ARMCC_VERSION) || defined(__ICCARM__)
MikamiUitOpen 16:cbb726ac20d8 20 # define NAME_MAX 255
MikamiUitOpen 16:cbb726ac20d8 21 typedef int mode_t;
MikamiUitOpen 16:cbb726ac20d8 22
MikamiUitOpen 16:cbb726ac20d8 23 #else
MikamiUitOpen 16:cbb726ac20d8 24 # include <sys/syslimits.h>
MikamiUitOpen 16:cbb726ac20d8 25 #endif
MikamiUitOpen 16:cbb726ac20d8 26
MikamiUitOpen 16:cbb726ac20d8 27 #include "FileHandle.h"
MikamiUitOpen 16:cbb726ac20d8 28
MikamiUitOpen 16:cbb726ac20d8 29 struct dirent {
MikamiUitOpen 16:cbb726ac20d8 30 char d_name[NAME_MAX+1];
MikamiUitOpen 16:cbb726ac20d8 31 };
MikamiUitOpen 16:cbb726ac20d8 32
MikamiUitOpen 16:cbb726ac20d8 33 namespace mbed {
MikamiUitOpen 16:cbb726ac20d8 34
MikamiUitOpen 16:cbb726ac20d8 35 /** Represents a directory stream. Objects of this type are returned
MikamiUitOpen 16:cbb726ac20d8 36 * by a FileSystemLike's opendir method. Implementations must define
MikamiUitOpen 16:cbb726ac20d8 37 * at least closedir, readdir and rewinddir.
MikamiUitOpen 16:cbb726ac20d8 38 *
MikamiUitOpen 16:cbb726ac20d8 39 * If a FileSystemLike class defines the opendir method, then the
MikamiUitOpen 16:cbb726ac20d8 40 * directories of an object of that type can be accessed by
MikamiUitOpen 16:cbb726ac20d8 41 * DIR *d = opendir("/example/directory") (or opendir("/example")
MikamiUitOpen 16:cbb726ac20d8 42 * to open the root of the filesystem), and then using readdir(d) etc.
MikamiUitOpen 16:cbb726ac20d8 43 *
MikamiUitOpen 16:cbb726ac20d8 44 * The root directory is considered to contain all FileLike and
MikamiUitOpen 16:cbb726ac20d8 45 * FileSystemLike objects, so the DIR* returned by opendir("/") will
MikamiUitOpen 16:cbb726ac20d8 46 * reflect this.
MikamiUitOpen 16:cbb726ac20d8 47 */
MikamiUitOpen 16:cbb726ac20d8 48 class DirHandle {
MikamiUitOpen 16:cbb726ac20d8 49
MikamiUitOpen 16:cbb726ac20d8 50 public:
MikamiUitOpen 16:cbb726ac20d8 51 /** Closes the directory.
MikamiUitOpen 16:cbb726ac20d8 52 *
MikamiUitOpen 16:cbb726ac20d8 53 * @returns
MikamiUitOpen 16:cbb726ac20d8 54 * 0 on success,
MikamiUitOpen 16:cbb726ac20d8 55 * -1 on error.
MikamiUitOpen 16:cbb726ac20d8 56 */
MikamiUitOpen 16:cbb726ac20d8 57 virtual int closedir()=0;
MikamiUitOpen 16:cbb726ac20d8 58
MikamiUitOpen 16:cbb726ac20d8 59 /** Return the directory entry at the current position, and
MikamiUitOpen 16:cbb726ac20d8 60 * advances the position to the next entry.
MikamiUitOpen 16:cbb726ac20d8 61 *
MikamiUitOpen 16:cbb726ac20d8 62 * @returns
MikamiUitOpen 16:cbb726ac20d8 63 * A pointer to a dirent structure representing the
MikamiUitOpen 16:cbb726ac20d8 64 * directory entry at the current position, or NULL on reaching
MikamiUitOpen 16:cbb726ac20d8 65 * end of directory or error.
MikamiUitOpen 16:cbb726ac20d8 66 */
MikamiUitOpen 16:cbb726ac20d8 67 virtual struct dirent *readdir()=0;
MikamiUitOpen 16:cbb726ac20d8 68
MikamiUitOpen 16:cbb726ac20d8 69 /** Resets the position to the beginning of the directory.
MikamiUitOpen 16:cbb726ac20d8 70 */
MikamiUitOpen 16:cbb726ac20d8 71 virtual void rewinddir()=0;
MikamiUitOpen 16:cbb726ac20d8 72
MikamiUitOpen 16:cbb726ac20d8 73 /** Returns the current position of the DirHandle.
MikamiUitOpen 16:cbb726ac20d8 74 *
MikamiUitOpen 16:cbb726ac20d8 75 * @returns
MikamiUitOpen 16:cbb726ac20d8 76 * the current position,
MikamiUitOpen 16:cbb726ac20d8 77 * -1 on error.
MikamiUitOpen 16:cbb726ac20d8 78 */
MikamiUitOpen 16:cbb726ac20d8 79 virtual off_t telldir() { return -1; }
MikamiUitOpen 16:cbb726ac20d8 80
MikamiUitOpen 16:cbb726ac20d8 81 /** Sets the position of the DirHandle.
MikamiUitOpen 16:cbb726ac20d8 82 *
MikamiUitOpen 16:cbb726ac20d8 83 * @param location The location to seek to. Must be a value returned by telldir.
MikamiUitOpen 16:cbb726ac20d8 84 */
MikamiUitOpen 16:cbb726ac20d8 85 virtual void seekdir(off_t location) { }
MikamiUitOpen 16:cbb726ac20d8 86
MikamiUitOpen 16:cbb726ac20d8 87 virtual ~DirHandle() {}
MikamiUitOpen 16:cbb726ac20d8 88 };
MikamiUitOpen 16:cbb726ac20d8 89
MikamiUitOpen 16:cbb726ac20d8 90 } // namespace mbed
MikamiUitOpen 16:cbb726ac20d8 91
MikamiUitOpen 16:cbb726ac20d8 92 typedef mbed::DirHandle DIR;
MikamiUitOpen 16:cbb726ac20d8 93
MikamiUitOpen 16:cbb726ac20d8 94 extern "C" {
MikamiUitOpen 16:cbb726ac20d8 95 DIR *opendir(const char*);
MikamiUitOpen 16:cbb726ac20d8 96 struct dirent *readdir(DIR *);
MikamiUitOpen 16:cbb726ac20d8 97 int closedir(DIR*);
MikamiUitOpen 16:cbb726ac20d8 98 void rewinddir(DIR*);
MikamiUitOpen 16:cbb726ac20d8 99 long telldir(DIR*);
MikamiUitOpen 16:cbb726ac20d8 100 void seekdir(DIR*, long);
MikamiUitOpen 16:cbb726ac20d8 101 int mkdir(const char *name, mode_t n);
MikamiUitOpen 16:cbb726ac20d8 102 };
MikamiUitOpen 16:cbb726ac20d8 103
MikamiUitOpen 16:cbb726ac20d8 104 #endif /* MBED_DIRHANDLE_H */