一.GEC6818开发板JPG图像显示

1.jpg图片特性

体积小，使用到数据结构里面的霍夫曼树(哈夫曼树)对数据进行压缩

2.如何解压缩jpg图片

1.对jpegsrc.v8c.tar.gz进行arm移植

移植方式如下：
1.将jpegsrc.v8c.tar.gz解压缩到ubuntu ~

tar -zxvf jpegsrc.v8c.tar.gz -C ~ // -C 指定解压缩的位置

2.进入~/jpeg-8c对jpeg库进行配置

./configure --host=arm-linux --prefix=/home/gec/armJPegLib
--host=arm-linux ： 指定编译的环境，arm平台
--prefix=/home/gec/armJPegLib ： 指定动态库存放的路径

3.编译

make

4.安装，将动态库存放到 /home/gec/armJPegLib

make install

5.清空编译记录

make clean

6.自己查看下 /home/gec/armJPegLib目录下是否有4个目录

bin  include  lib  share   

7.将图片和程序下载到开发板运行即可

二.开发板设置ip

// 临时静态设置ip设置,每次都需要设置
ifconfig eth0 192.168.24.xxx(自己分配的ip)
// 永久ip设置
    vi /etc/profile
    设置ip
        ifconfig eth0 192.168.24.xxx(自己分配的ip)
        参数如下：
            ifconfig lo 127.0.0.1 up   
            ifconfig eth0 up           
                                    
            ifconfig eth0 192.168.24.xxx 
    保存退出，重启开发板        

// 自动获取ip(慎重使用)
    udhcpc

三.tftp使用

1.从飞秋下载tftp工具，解压，打开tftp32.exe
2.点击浏览选择需要下载的文件所对应的目录
3.在开发板CRT软件，执行一下命令进行下载程序

tftp 192.168.1.xxx -g -r main（需要下载的程序）

解释:

  192.168.1.xxx : 电脑主机ip，注意不是开发板的ip
  -g -r ： 从电脑下载内容到开发板
  -p -l ： 将文件从开发板上传到电脑

四.运行程序显示图片的时候遇到以下问题

/main: error while loading shared libraries: libjpeg.so.8: cannot open shared object file: No such file or directory  

将 libjpeg.so.8下载到开发板的/lib

tftp 192.168.1.xxx -g -r libjpeg.so.8
cp libjpeg.so.8 /lib

五.禁用开发板开机自动执行原QT程序

vi /etc/profile
将以下两行程序注释
#cd /IOT
#./iot &
保存退出，重启开发板 reboot

六.科大讯飞离线语音识别包Linux_aitalk_exp1227_1398d7c6运行demo程序

1.进入Linux_aitalk_exp1227_1398d7c6/asr_offline_sample/asr_offline_sample

2.sudo cp Linux_aitalk_exp1227_1398d7c6/libs/x64/libmsc.so /lib   只需要拷贝一遍即可

3.编译程序

 ./64_bitmake.sh

4.编译后生成的可执行程序存放在 Linux_aitalk_exp1227_1398d7c6/bin

5.进入 Linux_aitalk_exp1227_1398d7c6/bin执行asr_offline_sample程序

 ./asr_offline_sample

报错
./asr_offline_sample: error while loading shared libraries: libmsc.so: cannot open shared object file: No such file or directory
注意将

sudo cp Linux_aitalk_exp1227_1398d7c6/libs/x64/libmsc.so /lib 

然后重新执行程序即可

六.开发板实现录音

/alsa/bin  --> arecord 录音
/alsa/bin  --> aplay   播放

alsa库移植

1.将alsa.tar.gz下载到开发板并解压到根目录

tftp 192.168.24.xxx -g -r alsa.tar.gz

2.设置alsa库环境变量

/etc/init.d/rcS 与 /etc/profile
#最大的区别就是，添加完环境变量以后不需要重启开发板，只需要执行
source /etc/init.d/rcS  # 即可
vi /etc/init.d/rcS 
#添加以下内容
export LD_LIBRARY_PATH=/alsa/lib:$LD_LIBRARY_PATH                          
export PATH=$PATH:/alsa/bin	

3.生效该脚本文件

source /etc/init.d/rcS 

4.查看环境变量有没有alsa库

env

5.指定ALSA库的配置文件

将/alsa/share/alsa/拷贝到/usr/share/，方法如下：
cp /alsa/share/alsa/ /usr/share/ -r
将/alsa拷贝到/home/gec/,方法如下：
cp /alsa /home/gec/ -rf     ---> 如果/home/gec不存在，则需要创建

6.在开发板创建脚本 vi installAlsaNote.sh ，按i按键添加以下内容,然后按:wq退出

mkdir /dev/snd
cd /dev/snd

mknod dsp c 14 3	
mknod audio c 14 4
mknod mixer c 14 0
mknod controlC0 c 116 0
mknod seq c 116 1
mknod pcmC0D0c c 116 24
mknod pcmC0D0p c 116 16
mknod pcmC0D1c c 116 25
mknod pcmC0D1p c 116 17
mknod timer c 116 33	

7.修改脚本权限

chmod 777 installAlsaNote.sh

8.运行脚本,注意每次掉电后需要重新运行

./installAlsaNote.sh		

9.录音

（注意录音的时候不需要接耳机，因为开发板自带有麦克风，麦克风的位置在耳机口后面）

arecord -d3 -c1 -r16000 -twav -fS16_LE abc.wav

-d, --duration=#        interrupt after # seconds   ---> 录音的秒数
-c, --channels=#        channels                    ---> 音轨
-r, --rate=#            sample rate                 ---> 采样频率
-t, --file-type TYPE    file type (voc, wav, raw or au)  ---> 封装的格式
-f, --format=FORMAT     sample format (case insensitive) ---> 量化位数
abc.wav ： 是生成的录音文件

10.播放音频

aplay abc.wav
abc.wav ： 是生成的录音文件

源码

asr_offline_sample.c

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h> /* superset of previous */
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>   
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#include "../../include/qisr.h"
#include "../../include/msp_cmn.h"
#include "../../include/msp_errors.h"

#define SAMPLE_RATE_16K     (16000)
#define SAMPLE_RATE_8K      (8000)
#define MAX_GRAMMARID_LEN   (32)
#define MAX_PARAMS_LEN      (1024)

const char * ASR_RES_PATH        = "fo|res/asr/common.jet"; //离线语法识别资源路径
const char * GRM_BUILD_PATH      = "res/asr/GrmBuilld"; //构建离线语法识别网络生成数据保存路径
const char * GRM_FILE            = "call.bnf"; //构建离线识别语法网络所用的语法文件
const char * LEX_NAME            = "contact"; //更新离线识别语法的contact槽（语法文件为此示例中使用的call.bnf）

typedef struct _UserData {
	int     build_fini; //标识语法构建是否完成
	int     update_fini; //标识更新词典是否完成
	int     errcode; //记录语法构建或更新词典回调错误码
	char    grammar_id[MAX_GRAMMARID_LEN]; //保存语法构建返回的语法ID
}UserData;


const char *get_audio_file(void); //选择进行离线语法识别的语音文件
int build_grammar(UserData *udata); //构建离线识别语法网络
int update_lexicon(UserData *udata); //更新离线识别语法词典
int run_asr(UserData *udata); //进行离线语法识别

const char* get_audio_file(void)
{
	char key = 0;
	while(key != 27) //按Esc则退出
	{
		printf("请选择音频文件：\n");
		printf("1.打电话给丁伟\n");
		printf("2.打电话给黄辣椒\n");
		printf("3.打电话给奥巴马\n");
		
		key = getchar();
		getchar();
		switch(key)
		{
		case '1':
			printf("\n1.打电话给丁伟\n");
			return "wav/ddhgdw.pcm";
		case '2':
			printf("\n2.打电话给黄辣椒\n");
			return "wav/ddhghlj.pcm";
		case '3':
			printf("\n3.打电话给奥巴马\n");
			return "wav/ddhgabm.pcm";
		default:
			continue;
		}
	}
	exit(0);
	return NULL;
}

int build_grm_cb(int ecode, const char *info, void *udata)
{
	UserData *grm_data = (UserData *)udata;

	if (NULL != grm_data) {
		grm_data->build_fini = 1;
		grm_data->errcode = ecode;
	}

	if (MSP_SUCCESS == ecode && NULL != info) {
		printf("构建语法成功！ 语法ID:%s\n", info);
		if (NULL != grm_data)
			snprintf(grm_data->grammar_id, MAX_GRAMMARID_LEN - 1, info);
	}
	else
		printf("构建语法失败！%d\n", ecode);

	return 0;
}

int build_grammar(UserData *udata)
{
	FILE *grm_file                           = NULL;
	char *grm_content                        = NULL;
	unsigned int grm_cnt_len                 = 0;
	char grm_build_params[MAX_PARAMS_LEN]    = {NULL};
	int ret                                  = 0;

	grm_file = fopen(GRM_FILE, "rb");	
	if(NULL == grm_file) {
		printf("打开\"%s\"文件失败！[%s]\n", GRM_FILE, strerror(errno));
		return -1; 
	}

	fseek(grm_file, 0, SEEK_END);
	grm_cnt_len = ftell(grm_file);
	fseek(grm_file, 0, SEEK_SET);

	grm_content = (char *)malloc(grm_cnt_len + 1);
	if (NULL == grm_content)
	{
		printf("内存分配失败!\n");
		fclose(grm_file);
		grm_file = NULL;
		return -1;
	}
	fread((void*)grm_content, 1, grm_cnt_len, grm_file);
	grm_content[grm_cnt_len] = '\0';
	fclose(grm_file);
	grm_file = NULL;

	snprintf(grm_build_params, MAX_PARAMS_LEN - 1, 
		"engine_type = local, \
		asr_res_path = %s, sample_rate = %d, \
		grm_build_path = %s, ",
		ASR_RES_PATH,
		SAMPLE_RATE_16K,
		GRM_BUILD_PATH
		);
	ret = QISRBuildGrammar("bnf", grm_content, grm_cnt_len, grm_build_params, build_grm_cb, udata);

	free(grm_content);
	grm_content = NULL;

	return ret;
}

int update_lex_cb(int ecode, const char *info, void *udata)
{
	UserData *lex_data = (UserData *)udata;

	if (NULL != lex_data) {
		lex_data->update_fini = 1;
		lex_data->errcode = ecode;
	}

	if (MSP_SUCCESS == ecode)
		printf("更新词典成功！\n");
	else
		printf("更新词典失败！%d\n", ecode);

	return 0;
}

int update_lexicon(UserData *udata)
{
	const char *lex_content                   = "丁伟\n黄辣椒";
	unsigned int lex_cnt_len                  = strlen(lex_content);
	char update_lex_params[MAX_PARAMS_LEN]    = {NULL}; 

	snprintf(update_lex_params, MAX_PARAMS_LEN - 1, 
		"engine_type = local, text_encoding = UTF-8, \
		asr_res_path = %s, sample_rate = %d, \
		grm_build_path = %s, grammar_list = %s, ",
		ASR_RES_PATH,
		SAMPLE_RATE_16K,
		GRM_BUILD_PATH,
		udata->grammar_id);
	return QISRUpdateLexicon(LEX_NAME, lex_content, lex_cnt_len, update_lex_params, update_lex_cb, udata);
}

int  tcp_socket=0; 
int  new_socket=0;

void  init_network()
{
	//1.初始化网络
    tcp_socket = socket(AF_INET, SOCK_STREAM, 0);
	
	//2.绑定服务器  
	//设置链接的服务器地址信息 
	struct sockaddr_in  addr;  
	addr.sin_family   = AF_INET; //IPV4 协议  
        addr.sin_port     = htons(50000); //端口
        addr.sin_addr.s_addr = inet_addr("192.168.24.35"); //服务器的IP 地址

	//解决端口复用
	int on=1;
	setsockopt(tcp_socket,SOL_SOCKET,SO_REUSEADDR,&on,sizeof(on));
	on=1;
	setsockopt(tcp_socket,SOL_SOCKET,SO_REUSEPORT,&on,sizeof(on));


	//2.绑定服务器地址信息
	int ret=bind(tcp_socket,(struct sockaddr *)&addr,sizeof(addr));
	if(ret < 0)
	{
		perror("");
		return 0;
	}
	else
	{
		printf("绑定成功\n");
	}

	//3.设置服务器为监听模式 
	ret=listen(tcp_socket,5);
	if(ret < 0)
	{
		perror("");
		return 0;
	}
	else
	{
		printf("设置监听成功\n");
	}

	//4.接收客户端的链接请求 
	printf("等待服务器链接进来\n");
	new_socket=accept(tcp_socket,NULL,NULL);
	if(new_socket < 0)
	{
		perror("");
		return  0;
	}
	else
	{
		printf("链接成功！！\n");
	}
	
}

//设计一个从网络获取文件接口 
char *get_network_file()
{
	
	//进行文件的接收  
	//1.新建文件  
	int  new_fd=open("wav/cmd.pcm",O_RDWR|O_CREAT|O_TRUNC,0777);

	int all_size=0; 

	while(1)
	{
		//读取网络数据，写入到本地文件中 
		char buf[4096]={0}; 
		int size = read(new_socket,buf,4096);  	
		write(new_fd,buf,size); 

		all_size+= size;  

		if(all_size == 96000)
		{
			printf("接收文件完毕，开始识别\n");
			break;
		}
	}
	
	//关闭所有打开后的文件 
	close(new_fd);
	
	return  "wav/cmd.pcm";
}


int run_asr(UserData *udata)
{
	char asr_params[MAX_PARAMS_LEN]    = {NULL};
	const char *rec_rslt               = NULL;
	const char *session_id             = NULL;
	const char *asr_audiof             = NULL;
	FILE *f_pcm                        = NULL;
	char *pcm_data                     = NULL;
	long pcm_count                     = 0;
	long pcm_size                      = 0;
	int last_audio                     = 0;
	int aud_stat                       = MSP_AUDIO_SAMPLE_CONTINUE;
	int ep_status                      = MSP_EP_LOOKING_FOR_SPEECH;
	int rec_status                     = MSP_REC_STATUS_INCOMPLETE;
	int rss_status                     = MSP_REC_STATUS_INCOMPLETE;
	int errcode                        = -1;

	//获取识别的音频文件  
	//asr_audiof = get_audio_file();   //主要修改这里，让他去识别我们自己的音频文件
	asr_audiof = get_network_file(); //从网络中获取文件
	  
	f_pcm = fopen(asr_audiof, "rb");
	if (NULL == f_pcm) {
		printf("打开\"%s\"失败！[%s]\n", f_pcm, strerror(errno));
		goto run_error;
	}
	
	//获取音频文件的大小，分配堆空间
	fseek(f_pcm, 0, SEEK_END);
	pcm_size = ftell(f_pcm);
	fseek(f_pcm, 0, SEEK_SET);
	pcm_data = (char *)malloc(pcm_size);
	if (NULL == pcm_data)
		goto run_error;
		
	//把所有的音频数据，读取到堆空间中 
	fread((void *)pcm_data, pcm_size, 1, f_pcm);
	fclose(f_pcm);
	f_pcm = NULL;

	//离线语法识别参数设置
	snprintf(asr_params, MAX_PARAMS_LEN - 1, 
		"engine_type = local, \
		asr_res_path = %s, sample_rate = %d, \
		grm_build_path = %s, local_grammar = %s, \
		result_type = json, result_encoding = UTF-8, ",
		ASR_RES_PATH,
		SAMPLE_RATE_16K,
		GRM_BUILD_PATH,
		udata->grammar_id
		);
	session_id = QISRSessionBegin(NULL, asr_params, &errcode);
	if (NULL == session_id)
		goto run_error;
	printf("开始识别...\n");

	while (1) {
		unsigned int len = 6400;

		if (pcm_size < 12800) {
			len = pcm_size;
			last_audio = 1;
		}

		aud_stat = MSP_AUDIO_SAMPLE_CONTINUE;

		if (0 == pcm_count)
			aud_stat = MSP_AUDIO_SAMPLE_FIRST;

		if (len <= 0)
			break;

		printf(">");
		fflush(stdout);
		errcode = QISRAudioWrite(session_id, (const void *)&pcm_data[pcm_count], len, aud_stat, &ep_status, &rec_status);
		if (MSP_SUCCESS != errcode)
			goto run_error;

		pcm_count += (long)len;
		pcm_size -= (long)len;

		//检测到音频结束
		if (MSP_EP_AFTER_SPEECH == ep_status)
			break;

		usleep(150 * 1000); //模拟人说话时间间隙
	}
	//主动点击音频结束
	QISRAudioWrite(session_id, (const void *)NULL, 0, MSP_AUDIO_SAMPLE_LAST, &ep_status, &rec_status);

	free(pcm_data);
	pcm_data = NULL;

	//获取识别结果
	while (MSP_REC_STATUS_COMPLETE != rss_status && MSP_SUCCESS == errcode) {
		rec_rslt = QISRGetResult(session_id, &rss_status, 0, &errcode);
		usleep(150 * 1000);
	}
	printf("\n识别结束：\n");
	printf("=============================================================\n");
	if (NULL != rec_rslt)
	{
		printf("%s\n", rec_rslt);
		
		//把结果回发给客户端  
		write(new_socket,rec_rslt,strlen(rec_rslt));
	}
	else
		printf("没有识别结果！\n");
	printf("=============================================================\n");

	goto run_exit;

run_error:
	if (NULL != pcm_data) {
		free(pcm_data);
		pcm_data = NULL;
	}
	if (NULL != f_pcm) {
		fclose(f_pcm);
		f_pcm = NULL;
	}
run_exit:
	QISRSessionEnd(session_id, NULL);
	return errcode;
}

int main(int argc, char* argv[])
{
	const char *login_config    = "appid = 4a6e6f76"; //登录参数
	UserData asr_data; 
	int ret                     = 0 ;
	char c;

    //初始化网络 
	init_network();
	
	ret = MSPLogin(NULL, NULL, login_config); //第一个参数为用户名，第二个参数为密码，传NULL即可，第三个参数是登录参数
	if (MSP_SUCCESS != ret) {
		printf("登录失败：%d\n", ret);
		goto exit;
	}

	memset(&asr_data, 0, sizeof(UserData));
	printf("构建离线识别语法网络...\n");
	ret = build_grammar(&asr_data);  
	
	//第一次使用某语法进行识别，需要先构建语法网络，获取语法ID，之后使用此语法进行识别，无需再次构建
	if (MSP_SUCCESS != ret) {
		printf("构建语法调用失败！\n");
		goto exit;
	}
	while (1 != asr_data.build_fini)
		usleep(300 * 1000);
	if (MSP_SUCCESS != asr_data.errcode)
		goto exit;
		
	printf("离线识别语法网络构建完成，开始识别...\n");	
	
	while(1)  //不断进行识别 
	{
		ret = run_asr(&asr_data);
		if (MSP_SUCCESS != ret) {
			printf("离线语法识别出错: %d \n", ret);
			goto exit;
		}
	}

exit:
	MSPLogout();
	return 0;
}

myhead.h

#ifndef _MYHEAD_H
#define _MYHEAD_H

#include <stdio.h>
#include <string.h>
#include <strings.h>
//#include <uniststat.h>
//#include <fcntld.h>


#include <fcntl.h>
#include <stdio.h>   	//printf scanf
#include <fcntl.h>		//open write read lseek close  	 
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <stdlib.h>
#include <linux/input.h>
#include "jpeglib.h"

#define LCD_WIDTH  800
#define LCD_HEIGHT 	480
#define FB_SIZE		(LCD_WIDTH * LCD_HEIGHT * 4)
#define EN_LCD_SHOW_JPG		1
// 获取触摸屏坐标
int ts(int *ts_x,int *ts_y);
// 显示jpg图片
int lcd_draw_jpg(unsigned int x,unsigned int y,const char *pjpg_path,char *pjpg_buf,unsigned int jpg_buf_size,unsigned int jpg_half);
#endif

Makefile

#common makefile header

DIR_INC = ../../include
DIR_BIN = ../../bin
DIR_LIB = ../../libs

TARGET	= asr_offline_sample
BIN_TARGET = $(DIR_BIN)/$(TARGET)

CROSS_COMPILE = 
CFLAGS = -g -Wall -I$(DIR_INC)

ifdef LINUX64
LDFLAGS := -L$(DIR_LIB)/x64
else
LDFLAGS := -L$(DIR_LIB)/x86 
endif
LDFLAGS += -lmsc -lrt -ldl -lpthread  -lstdc++

OBJECTS := $(patsubst %.c,%.o,$(wildcard *.c))

$(BIN_TARGET) : $(OBJECTS)
	$(CROSS_COMPILE)gcc $(CFLAGS) $^ -o $@ $(LDFLAGS)

%.o : %.c
	$(CROSS_COMPILE)gcc -c $(CFLAGS) $< -o $@
clean:
	@rm -f *.o $(BIN_TARGET)

.PHONY:clean

#common makefile foot