stm32单片机裸机调用百度语音识别接口和合成接口的部分代码实现，有意向的可以联系我 qq790861133
stm32单片机裸机调用百度语音识别接口和合成接口的部分代码实现，有意向的可以联系我 qq790861133 ---作者：阮丁远
先介绍个要用到的函数：lwip 下 WebClient或者说http cilent的实现:
int8_t WebClient(const char *url, const char *post, uint8_t **pageBuf,uint8_t is_upload_wav,uint32_t wav_len1)
{
uint32_t i;
uint8_t server_addr[200];//这2个放在局部变量里，防止多线程冲突：
uint8_t web_addr[1200];//有的tts的二次url编码后的请求长度很长，所以这个大点
ip_addr_t server_ip;
uint8_t ishttps;
uint16_t start_char_i;
uint16_t start_len1;
uint32_t ret_lens;
err_t err ;
uint32_t j, k;
uint32_t head_and_wav_len1;
struct netconn *conn = NULL;
struct netbuf *inBuf = NULL;
struct pbuf *q;
char *request = NULL;
uint32_t recvPos = 0;
uint8_t *recvBuf;
err_t err_msg;
while(wifi_88w8801_sta.ip_addr.addr == 0x00)
{
return HTTP_ROUTE_NOT_FOUND;
}
if(strncasecmp((const char *)url, "http://", 7) == 0||strncasecmp((const char *)url, "https://", 8) == 0) /* 只处理http协议 */
{
if(strncasecmp((const char *)url, "http://", 7) == 0){
ishttps=0;
start_char_i=4;
start_len1=7;
}
if(strncasecmp((const char *)url, "https://", 8) == 0){
ishttps=1;
start_char_i=5;
start_len1=8;
}
if(ishttps==0){
////改为全局变量式，可以防止内存泄露:
//server_addr = pvPortMalloc2 strlen(url) - 7);
}else{
////改为全局变量式，可以防止内存泄露:
//server_addr = pvPortMalloc2 strlen(url) - 8);
}
////改为全局变量式，可以防止内存泄露:
// if(server_addr == NULL) {
//
// printf("HTTP_OUT_OF_RAM in malloc server_addr");
//
// return HTTP_OUT_OF_RAM;
//
//
// }
printf("proceess 1\r\n");
/* 1)提取服务器部分 */
for(i = start_char_i; url[i]; ++i)
{
if (url[i] == ':' && url[i + 1] == '/' && url[i + 2] == '/')
{
for (i = i + 3, j = 0; url[i] > 32 && url[i] < 127 && url[i] != '/'; //32-127间的ascII码的字符
++i, ++j)
{
server_addr[j] = url[i];
if (url[i] == '@') /* 服务器基础认证符号,我们做不了,遇到就错误. */
{
return HTTP_AUTH_NOT_SUPPORT;
}
}
server_addr[j] = '\0';
////改为全局变量式，可以防止内存泄露:
//web_addr = pvPortMalloc2 strlen(url) - start_len1 - strlen((const char *)server_addr));
//if(web_addr == NULL) return HTTP_OUT_OF_RAM;
for (k = start_len1 + j; k < (strlen(url)); k++) /* 后半部分提取 */
{
web_addr[k - start_len1 - j] = url[k];
}
web_addr[k - start_len1 - j] = '\0';
while (--j)
{
if (server_addr[j] == ':')//??过滤端口号？
{
server_addr[j] = '\0';
}
}
}
}
if(strlen((const char *)server_addr) < 2) /* 最短网址3.cn */
{
printf("HTTP_SERVER_ADDR_ERROR\r\n");
printf(server_addr);
////改为全局变量式，可以防止内存泄露:
//vPortFree2 server_addr);
////改为全局变量式，可以防止内存泄露:
// if(web_addr == NULL) {vPortFree2 web_addr); }
/* 这么短,还不一定提取到了这个. */
return HTTP_SERVER_ADDR_ERROR;
}
printf("\r\nweb host:");
printf(server_addr);
/* 2)查询IP */
netconn_gethostbyname((const char *)server_addr, &server_ip);
//
// server_ip.addr=0;
// err = dns_gethostbyname((const char *)server_addr, &server_ip,dns_foundB , NULL);//dns_foundB
// if (err == ERR_OK)
// {
// printf("In cache! IP: %s\n", ipaddr_ntoa(&server_ip));
// }
//
//
// while(server_ip.addr==0){
//
//
// }
//
printf("get a IP: %s\n", ipaddr_ntoa(&server_ip));
if(is_upload_wav==1){
/* 3)构造访问头 */
request = pvPortMalloc2( strlen(url) + wav_len1+1024); /* 头所需内存大小. */
}else if(is_upload_wav==0){
request = pvPortMalloc2( strlen(url) + 1024); /* 头所需内存大小. */
}else if(is_upload_wav==2){
request = pvPortMalloc2( strlen(url) + 1024); /* 头所需内存大小. */
}
if(request == NULL)
{
printf("HTTP_OUT_OF_RAM in request Malloc.");
return HTTP_OUT_OF_RAM;
}
if(is_upload_wav==1){
#if upload_Wav0_or_pcm1 ==0
sprintf(request, "POST %s HTTP/1.0\r\nHost: %s\r\nUser-Agent:Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50\r\nContent-Length: %d\r\nContent-Type: audio/wav;rate=8000\r\n\r\n", web_addr, server_addr, wav_len1);
#endif
#if upload_Wav0_or_pcm1 ==1
sprintf(request, "POST %s HTTP/1.0\r\nHost: %s\r\nUser-Agent:Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50\r\nContent-Length: %d\r\nContent-Type: audio/pcm;rate=8000\r\n\r\n", web_addr, server_addr, wav_len1);
#endif
head_and_wav_len1=strlen(request)+wav_len1;
memcpy( &request[strlen(request)],post,wav_len1);
}else if(is_upload_wav==0){
if(post != NULL){
sprintf(request, "POST %s HTTP/1.0\r\nHost: %s\r\nUser-Agent:Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50\r\nContent-Length: %d\r\nContent-Type: application/x-www-form-urlencoded\r\n\r\n%s", web_addr, server_addr, strlen(post), post);
// printf( "POST %s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Mozilla/5.0 (lwip;STM32) TaterLi\r\nContent-Length: %d\r\nContent-Type: application/x-www-form-urlencoded\r\n\r\n%s", web_addr, server_addr, strlen(post), post);
}else{
sprintf(request, "GET %s HTTP/1.0\r\nHost: %s\r\nUser-Agent:Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50\r\n\r\n", web_addr, server_addr);
}
}else if(is_upload_wav==2){
sprintf(request, "GET %s HTTP/1.0\r\nHost: %s\r\nUser-Agent:Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50\r\n\r\n", web_addr, server_addr);
MP3_return_data_len=0;
}
//vPortFree2 (server_addr);
if(web_addr != NULL)
{
/* 万一没提取到,就是NULL,如果是NULL,那么也不用继续了. */
////改为全局变量式，可以防止内存泄露:
//vPortFree2 web_addr);
}
else
{
vPortFree2 (request);
printf("HTTP_NOT_VALID_ADDR");
return HTTP_NOT_VALID_ADDR;
}
/* 4)开始访问 */
conn = netconn_new(NETCONN_TCP);
err_msg = netconn_connect(conn, &server_ip, 80); /* 目前也只能支持80端口,比较常用,不考虑特殊情况. */
if (err_msg == ERR_OK)
{
// struct netbuf *inBuf_g = NULL;
if(is_upload_wav==1){
netconn_write(conn, request, head_and_wav_len1, NETCONN_COPY);
}else if(is_upload_wav==0){
netconn_write(conn, request, strlen((char *)request), NETCONN_COPY);
}else if(is_upload_wav==2){
netconn_write(conn, request, strlen((char *)request), NETCONN_COPY);
}
vPortFree2 (request);
conn->recv_timeout = 15000;//15s
recvPos = 0;
if(is_upload_wav==2){
u32 offsetptr;
void *data;
u16_t len;
recvPos = 0;
ret_lens=0;
offsetptr=0;
while(1)
{
err=netconn_recv(conn, &inBuf);
if(inBuf==NULL){
break;
}
do
{
netbuf_data(inBuf, &data, &len);
memcpy(MP3_return_data+ret_lens,data,len);
ret_lens+=len;
}
while (netbuf_next(inBuf) >= 0);
printf("ret_lens=%d\r\n",ret_lens);
netbuf_delete(inBuf);
}
// printf (MP3_return_data);
netconn_close(conn);
netconn_delete(conn);
// netbuf_delete(inBuf);
/* 5)分析数据(分析HTTP头,暂时不打算支持301之类的) */
for(i = 0; MP3_return_data[i]; ++i)
{
if (MP3_return_data[i] == '2' && MP3_return_data[i + 1] == '0' && MP3_return_data[i + 2] == '0')
{
/* 证明200 OK */
for(; MP3_return_data[i]!='\0'; ++i)
{
/* 响应头的结束也是两个回车 */
if(MP3_return_data[i] == '\r' && MP3_return_data[i + 1] == '\n' && MP3_return_data[i + 2] == '\r' && MP3_return_data[i + 3] == '\n')
{
/* 6)复制正文内容 */
i += 4;
k = ret_lens - i;
if(k == 0) return HTTP_NO_CONTENT;
MP3_return_data_len=k;
MP3_return_data_start_offset=i;
printf("MP3_return_data_len=%d\r\n",MP3_return_data_len);
//printf(MP3_return_data);
return HTTP_OK;
}
}
}
}
}else{
void *data;
u16_t len;
u32 offsetptr;
recvBuf = pvPortMalloc2( 1024*1024);
recvPos = 0;
ret_lens=0;
offsetptr=0;
while(1)
{
netconn_recv(conn, &inBuf);
if(inBuf==NULL){
break;
}
do
{
netbuf_data(inBuf, &data, &len);
memcpy(recvBuf+ret_lens,data,len);
ret_lens+=len;
}
while (netbuf_next(inBuf) >= 0);
recvBuf[ret_lens]='\0';
netbuf_delete(inBuf);
}
netconn_close(conn);
netconn_delete(conn);
// if(err_msg != ERR_OK) {
//
// printf("HTTP_OUT_OF_RAM in err_msg != ERR_OK");
//
// return HTTP_OUT_OF_RAM;
//
//
//
// }
/* 5)分析数据(分析HTTP头,暂时不打算支持301之类的) */
for(i = 0; recvBuf[i]; ++i)
{
if (recvBuf[i] == '2' && recvBuf[i + 1] == '0' && recvBuf[i + 2] == '0')
{
/* 证明200 OK */
for(; recvBuf[i]!='\0'; ++i)
{
/* 响应头的结束也是两个回车 */
if(recvBuf[i] == '\r' && recvBuf[i + 1] == '\n' && recvBuf[i + 2] == '\r' && recvBuf[i + 3] == '\n')
{
/* 6)复制正文内容 */
i += 4;
k = ret_lens - i;
if(k == 0) return HTTP_NO_CONTENT;
*pageBuf = pvPortMalloc2 (k);
if(*pageBuf == NULL)
{
vPortFree2 (recvBuf);
printf("HTTP_OUT_OF_RAM in malloc pageBuf");
return HTTP_OUT_OF_RAM;
}
memset((char *)*pageBuf,0,k);
memcpy((char *)*pageBuf, (const char *)recvBuf + i, k); /* 用HTTP1.0是没http chunked response的.方便处理,否则还要分段接收网页,大的网页反正MCU也接不下. */
vPortFree2 (recvBuf);
((char *)*pageBuf)[k]='\0';
return HTTP_OK;
}
}
}
}
printf("NOY_HTTP_OK:");
printf(recvBuf);
if(recvBuf != NULL) {vPortFree2 (recvBuf);}
}
return HTTP_NOT_200OK;
}
else
{
vPortFree2 (request);
printf("HTTP_SERVER_REFUSE");
return HTTP_SERVER_REFUSE;
}
}
else
{
printf("HTTPS_NOT_SUPPORT");
return HTTPS_NOT_SUPPORT;
}
}
上面这个实现了单片机调用网站地址并返回网页内容，下面就用这个函数具体调用百度http://vop.baidu.com/server_api?dev_pid=1536&cuid=%s&token=%s 接口，
哈，只能展示这么多，更详细支持请联系我 qq790861133 ，或进入 我网店 https://shop454934838.taobao.com 购买我的百度语音识别模块
void process_asr(){
int err = HTTP_OK;
uint16_t ret_code1;
// printf("start ASR...");
//------------------------------------------------------------------------------------
reflsh_token(0);
memset(urlgg,'\0',urlchar_maxlen);
//dev_pid=1536是普通话，1537 =普通话(纯中文识别),dev_pid=1936是远场普通话
sprintf(urlgg,"http://vop.baidu.com/server_api?dev_pid=1536&cuid=%s&token=%s",cuid,g_access_token);
err = WebClient(urlgg, reco_temp_ram, &abuf,1,reco_temp_ram_len);
if(abuf != NULL && err == HTTP_OK)
{
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