GR-PEACH_Audio_WAV - This sample will play a ".wav" file of the USB ro…

Renesas » Code » GR-PEACH_Audio_WAV

This sample will play a ".wav" file of the USB root folder. Only RIFF format.

Fork of GR-PEACH_Audio_WAV by Daiki Kato

Audio sample for GR-PEACH or GR-LYCHEE. This sample will play a ".wav" file in the root of USB memory or SD card. If the USER_BUTTON0 is pressed, the next song is played.

The default setting of serial communication (baud rate etc.) in mbed is shown the following link.
Please refer to the link and change the settings of your PC terminal software.
The default value of baud rate in mbed is 9600, and this application uses baud rate 9600.
https://developer.mbed.org/teams/Renesas/wiki/GR-PEACH-Getting-Started#install-the-usb-serial-communication

Please refer to following link about Audio/Camera Shield.
https://developer.mbed.org/teams/Renesas/wiki/Audio_Camera-shield

For GR-PEACH:

Format	Wav file (RIFF format) ".wav"
Channel	2ch
Frequencies	32kHz, 44.1kHz, 48kHz, 88.2kHz and 96kHz
Quantization bit rate	16bits, 24bits and 32bits

For GR-LYCHEE:

Format	Wav file (RIFF format) ".wav"
Channel	2ch
Frequencies	32kHz, 44.1kHz and 48kHz
Quantization bit rate	16bits

Use USB0 of PEACH:

If you use the USB0 as USB Host, please close GR-PEACH's JP3.

Please select USB0 connector by the following configuration.

mbed_app.json

{
    "config": {
        "usb-host-ch":{
            "help": "(for GR-PEACH) 0:ch0 1:ch1",
            "value": "0"
        },
        "audio-camera-shield":{
            "help": "(for GR-PEACH) 0:not use 1:use",
            "value": "0"
        }
    }
}

Use USB1 of GR-PEACH:

If you use the USB1 as USB Host, please close Audio/Camera Shield's JP1.

Please select Audio/Camera Shield and USB1 connector by the following configuration.

mbed_app.json

{
    "config": {
        "usb-host-ch":{
            "help": "(for GR-PEACH) 0:ch0 1:ch1",
            "value": "1"
        },
        "audio-camera-shield":{
            "help": "(for GR-PEACH) 0:not use 1:use",
            "value": "1"
        }
    }
}

dec_wav.h@5:983467c1466b, 2015-06-24 (annotated)

Committer:: dkato
Date:: Wed Jun 24 10:00:46 2015 +0000
Revision:: 5:983467c1466b
Parent:: 4:01651a6c3f9a
Child:: 6:ad0b3ce4284b

bug fixed

Who changed what in which revision?

User	Revision	Line number	New contents of line
dkato	4:01651a6c3f9a	1	/************************************************************************//
dkato	4:01651a6c3f9a	2	* @file dec_wav.h
dkato	4:01651a6c3f9a	3	* @brief wav
dkato	4:01651a6c3f9a	4	******************************************************************************/
dkato	4:01651a6c3f9a	5	#include "mbed.h"
dkato	4:01651a6c3f9a	6
dkato	4:01651a6c3f9a	7	/** A class to communicate a dec_wav
dkato	4:01651a6c3f9a	8	*
dkato	4:01651a6c3f9a	9	*/
dkato	4:01651a6c3f9a	10	class dec_wav {
dkato	4:01651a6c3f9a	11	public:
dkato	4:01651a6c3f9a	12
dkato	4:01651a6c3f9a	13	/** analyze header
dkato	4:01651a6c3f9a	14	*
dkato	4:01651a6c3f9a	15	* @param p_title title tag buffer
dkato	4:01651a6c3f9a	16	* @param p_artist artist tag buffer
dkato	4:01651a6c3f9a	17	* @param p_album album tag buffer
dkato	4:01651a6c3f9a	18	* @param tag_size tag buffer size
dkato	4:01651a6c3f9a	19	* @param fp file pointer
dkato	4:01651a6c3f9a	20	* @return true = success, false = failure
dkato	4:01651a6c3f9a	21	*/
dkato	5:983467c1466b	22	bool AnalyzeHeder(uint8_t * p_title, uint8_t * p_artist, uint8_t * p_album, uint16_t tag_size, FILE * fp) {
dkato	4:01651a6c3f9a	23	bool result = false;
dkato	4:01651a6c3f9a	24	size_t read_size;
dkato	4:01651a6c3f9a	25	uint8_t wk_read_buff[36];
dkato	4:01651a6c3f9a	26	uint8_t *data;
dkato	4:01651a6c3f9a	27	uint32_t chunk_size;
dkato	4:01651a6c3f9a	28	uint32_t sub_chunk_size;
dkato	4:01651a6c3f9a	29	uint32_t list_index_max;
dkato	4:01651a6c3f9a	30	bool list_ok = false;
dkato	4:01651a6c3f9a	31	uint32_t read_index = 0;
dkato	4:01651a6c3f9a	32	uint32_t data_index = 0;
dkato	4:01651a6c3f9a	33	uint16_t wk_len;
dkato	4:01651a6c3f9a	34
dkato	4:01651a6c3f9a	35	if (fp == NULL) {
dkato	4:01651a6c3f9a	36	return false;
dkato	4:01651a6c3f9a	37	}
dkato	4:01651a6c3f9a	38	music_data_size = 0;
dkato	4:01651a6c3f9a	39	music_data_index = 0;
dkato	4:01651a6c3f9a	40	wav_fp = fp;
dkato	4:01651a6c3f9a	41	if (p_title != NULL) {
dkato	4:01651a6c3f9a	42	p_title[0] = '\0';
dkato	4:01651a6c3f9a	43	}
dkato	4:01651a6c3f9a	44	if (p_artist != NULL) {
dkato	4:01651a6c3f9a	45	p_artist[0] = '\0';
dkato	4:01651a6c3f9a	46	}
dkato	4:01651a6c3f9a	47	if (p_album != NULL) {
dkato	4:01651a6c3f9a	48	p_album[0] = '\0';
dkato	4:01651a6c3f9a	49	}
dkato	4:01651a6c3f9a	50
dkato	4:01651a6c3f9a	51	read_size = fread(&wk_read_buff[0], sizeof(char), 36, wav_fp);
dkato	4:01651a6c3f9a	52	if (read_size < 36) {
dkato	4:01651a6c3f9a	53	// do nothing
dkato	4:01651a6c3f9a	54	} else if (memcmp(&wk_read_buff[0], "RIFF", 4) != 0) {
dkato	4:01651a6c3f9a	55	// do nothing
dkato	4:01651a6c3f9a	56	} else if (memcmp(&wk_read_buff[8], "WAVE", 4) != 0) {
dkato	4:01651a6c3f9a	57	// do nothing
dkato	4:01651a6c3f9a	58	} else if (memcmp(&wk_read_buff[12], "fmt ", 4) != 0) {
dkato	4:01651a6c3f9a	59	// do nothing
dkato	4:01651a6c3f9a	60	} else {
dkato	4:01651a6c3f9a	61	read_index += 36;
dkato	5:983467c1466b	62	channel = ((uint32_t)wk_read_buff[22] << 0) + ((uint32_t)wk_read_buff[23] << 8);
dkato	4:01651a6c3f9a	63	sampling_rate = ((uint32_t)wk_read_buff[24] << 0)
dkato	4:01651a6c3f9a	64	+ ((uint32_t)wk_read_buff[25] << 8)
dkato	4:01651a6c3f9a	65	+ ((uint32_t)wk_read_buff[26] << 16)
dkato	4:01651a6c3f9a	66	+ ((uint32_t)wk_read_buff[27] << 24);
dkato	4:01651a6c3f9a	67	block_size = ((uint32_t)wk_read_buff[34] << 0) + ((uint32_t)wk_read_buff[35] << 8);
dkato	5:983467c1466b	68	if ((channel != 2) \|\| (block_size != 16) \|\| (sampling_rate != 44100)) {
dkato	4:01651a6c3f9a	69	return false;
dkato	4:01651a6c3f9a	70	}
dkato	4:01651a6c3f9a	71	while (1) {
dkato	4:01651a6c3f9a	72	read_size = fread(&wk_read_buff[0], sizeof(char), 8, wav_fp);
dkato	4:01651a6c3f9a	73	read_index += 8;
dkato	4:01651a6c3f9a	74	if (read_size < 8) {
dkato	4:01651a6c3f9a	75	break;
dkato	4:01651a6c3f9a	76	} else {
dkato	4:01651a6c3f9a	77	chunk_size = ((uint32_t)wk_read_buff[4] << 0)
dkato	4:01651a6c3f9a	78	+ ((uint32_t)wk_read_buff[5] << 8)
dkato	4:01651a6c3f9a	79	+ ((uint32_t)wk_read_buff[6] << 16)
dkato	4:01651a6c3f9a	80	+ ((uint32_t)wk_read_buff[7] << 24);
dkato	4:01651a6c3f9a	81	if (memcmp(&wk_read_buff[0], "data", 4) == 0) {
dkato	4:01651a6c3f9a	82	result = true;
dkato	4:01651a6c3f9a	83	music_data_size = chunk_size;
dkato	4:01651a6c3f9a	84	if (list_ok == true) {
dkato	4:01651a6c3f9a	85	break;
dkato	4:01651a6c3f9a	86	} else {
dkato	4:01651a6c3f9a	87	data_index = read_index;
dkato	4:01651a6c3f9a	88	fseek(wav_fp, chunk_size, SEEK_CUR);
dkato	4:01651a6c3f9a	89	read_index += chunk_size;
dkato	4:01651a6c3f9a	90	}
dkato	4:01651a6c3f9a	91	} else if (memcmp(&wk_read_buff[0], "LIST", 4) == 0) {
dkato	4:01651a6c3f9a	92	list_ok = true;
dkato	4:01651a6c3f9a	93	list_index_max = read_index + chunk_size;
dkato	4:01651a6c3f9a	94	read_size = fread(&wk_read_buff[0], sizeof(char), 4, wav_fp);
dkato	4:01651a6c3f9a	95	read_index += 4;
dkato	4:01651a6c3f9a	96	while (read_index < list_index_max) {
dkato	4:01651a6c3f9a	97	read_size = fread(&wk_read_buff[0], sizeof(char), 8, wav_fp);
dkato	4:01651a6c3f9a	98	read_index += 8;
dkato	4:01651a6c3f9a	99	if (read_size < 8) {
dkato	4:01651a6c3f9a	100	break;
dkato	4:01651a6c3f9a	101	} else if (memcmp(&wk_read_buff[0], "INAM", 4) == 0) {
dkato	4:01651a6c3f9a	102	data = p_title;
dkato	4:01651a6c3f9a	103	} else if (memcmp(&wk_read_buff[0], "IART", 4) == 0) {
dkato	4:01651a6c3f9a	104	data = p_artist;
dkato	4:01651a6c3f9a	105	} else if (memcmp(&wk_read_buff[0], "IPRD", 4) == 0) {
dkato	4:01651a6c3f9a	106	data = p_album;
dkato	4:01651a6c3f9a	107	} else {
dkato	4:01651a6c3f9a	108	data = NULL;
dkato	4:01651a6c3f9a	109	}
dkato	4:01651a6c3f9a	110	if ((data != NULL) && (tag_size != 0)) {
dkato	4:01651a6c3f9a	111	sub_chunk_size = ((uint32_t)wk_read_buff[4] << 0)
dkato	4:01651a6c3f9a	112	+ ((uint32_t)wk_read_buff[5] << 8)
dkato	4:01651a6c3f9a	113	+ ((uint32_t)wk_read_buff[6] << 16)
dkato	4:01651a6c3f9a	114	+ ((uint32_t)wk_read_buff[7] << 24);
dkato	4:01651a6c3f9a	115	if (sub_chunk_size > (tag_size - 1)) {
dkato	4:01651a6c3f9a	116	wk_len = (tag_size - 1);
dkato	4:01651a6c3f9a	117	} else {
dkato	4:01651a6c3f9a	118	wk_len = sub_chunk_size;
dkato	4:01651a6c3f9a	119	}
dkato	4:01651a6c3f9a	120	read_size = fread(data, sizeof(char), wk_len, wav_fp);
dkato	4:01651a6c3f9a	121	read_index += sub_chunk_size;
dkato	4:01651a6c3f9a	122	fseek(wav_fp, read_index, SEEK_SET);
dkato	4:01651a6c3f9a	123	data[wk_len] = '\0';
dkato	4:01651a6c3f9a	124	}
dkato	4:01651a6c3f9a	125	}
dkato	4:01651a6c3f9a	126	if (data_index != 0) {
dkato	4:01651a6c3f9a	127	break;
dkato	4:01651a6c3f9a	128	} else {
dkato	4:01651a6c3f9a	129	fseek(wav_fp, list_index_max, SEEK_SET);
dkato	4:01651a6c3f9a	130	}
dkato	4:01651a6c3f9a	131	} else {
dkato	4:01651a6c3f9a	132	fseek(wav_fp, chunk_size, SEEK_CUR);
dkato	4:01651a6c3f9a	133	read_index += chunk_size;
dkato	4:01651a6c3f9a	134	}
dkato	4:01651a6c3f9a	135	}
dkato	4:01651a6c3f9a	136	}
dkato	4:01651a6c3f9a	137
dkato	4:01651a6c3f9a	138	if (data_index != 0) {
dkato	4:01651a6c3f9a	139	fseek(wav_fp, data_index, SEEK_SET);
dkato	4:01651a6c3f9a	140	}
dkato	4:01651a6c3f9a	141	}
dkato	4:01651a6c3f9a	142
dkato	4:01651a6c3f9a	143	return result;
dkato	4:01651a6c3f9a	144	};
dkato	4:01651a6c3f9a	145
dkato	4:01651a6c3f9a	146	/** get next data
dkato	4:01651a6c3f9a	147	*
dkato	4:01651a6c3f9a	148	* @param buf data buffer address
dkato	4:01651a6c3f9a	149	* @param len data buffer length
dkato	4:01651a6c3f9a	150	* @return get data size
dkato	4:01651a6c3f9a	151	*/
dkato	5:983467c1466b	152	size_t GetNextData(void *buf, size_t len) {
dkato	4:01651a6c3f9a	153	if ((music_data_index + len) > music_data_size) {
dkato	4:01651a6c3f9a	154	len = music_data_size - music_data_index;
dkato	4:01651a6c3f9a	155	}
dkato	4:01651a6c3f9a	156	music_data_index += len;
dkato	4:01651a6c3f9a	157
dkato	4:01651a6c3f9a	158	return fread(buf, sizeof(char), len, wav_fp);
dkato	4:01651a6c3f9a	159	};
dkato	4:01651a6c3f9a	160
dkato	5:983467c1466b	161	/** get channel
dkato	5:983467c1466b	162	*
dkato	5:983467c1466b	163	* @return channel
dkato	5:983467c1466b	164	*/
dkato	5:983467c1466b	165	uint16_t GetChannel() {
dkato	5:983467c1466b	166	return channel;
dkato	5:983467c1466b	167	};
dkato	5:983467c1466b	168
dkato	5:983467c1466b	169	/** get block size
dkato	5:983467c1466b	170	*
dkato	5:983467c1466b	171	* @return block size
dkato	5:983467c1466b	172	*/
dkato	5:983467c1466b	173	uint16_t GetBlockSize() {
dkato	5:983467c1466b	174	return block_size;
dkato	5:983467c1466b	175	};
dkato	5:983467c1466b	176
dkato	5:983467c1466b	177	/** get sampling rate
dkato	5:983467c1466b	178	*
dkato	5:983467c1466b	179	* @return sampling rate
dkato	5:983467c1466b	180	*/
dkato	5:983467c1466b	181	uint16_t GetSamplingRate() {
dkato	5:983467c1466b	182	return sampling_rate;
dkato	5:983467c1466b	183	};
dkato	5:983467c1466b	184
dkato	4:01651a6c3f9a	185	private:
dkato	4:01651a6c3f9a	186	FILE * wav_fp;
dkato	4:01651a6c3f9a	187	uint32_t music_data_size;
dkato	4:01651a6c3f9a	188	uint32_t music_data_index;
dkato	5:983467c1466b	189	uint16_t channel;
dkato	5:983467c1466b	190	uint16_t block_size;
dkato	5:983467c1466b	191	uint32_t sampling_rate;
dkato	4:01651a6c3f9a	192	};

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Type:	Program
Mbed OS support:	Mbed OS
Created:	02 Jun 2015
Imports:	166
Forks:	1
Commits:	11
Dependents:	0
Dependencies:	0
Followers:	59

mbed_app.json

mbed_app.json

dec_wav.h@5:983467c1466b, 2015-06-24 (annotated)

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