---

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ipifconfig 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/sndmknod 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);}elseprintf("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");elseprintf("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));}elseprintf("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 headerDIR_INC = ../../include
DIR_BIN = ../../bin
DIR_LIB = ../../libsTARGET	= 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