最近实现录音功能,主要涉及到录音的上传和下载,以及转码问题。微信,QQ默认的的音频文件是amr格式的,而播放器却不识别amr格式的音频,必须尽行转码。amr文件分为两种,一种是通用的amr格式,这种文件可以用任意播放器打开播放。但是还有另外一种amr文件,这种文件的后缀虽然是amr,但其实其内部并不是真正的amr格式。有不对的地方有请各方大神批评指正,具体实现如下:

1.调用微信录音接口(开始录音,暂停录音,上传录音,)

具体接口请你参考 http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html

(1)record.jsp

$(function(){
//调用微信开始录音接口
wx.ready(function(){
//开始录音
alert("开始录音");
wx.startRecord();
});
//结束录音
wx.ready(function(){
wx.stopRecord({
success: function (res) {
var localId = res.localId;
alert("录音结束");
saveAlert(localId);
}
});
});
//声音标题,声音描述
var voiceTitle = $("#voiceTitle").val();
var voiceDesc = $("#voiceDesc").val();
//将录音上传腾讯服务器
wx.ready(function(){
wx.uploadVoice({
localId: id, // 需要上传的音频的本地ID,由stopRecord接口获得
isShowProgressTips: 1, // 默认为1,显示进度提示
success: function (res) {
var serverId = res.serverId; // 返回音频的服务器端ID
saveIntoLocation(serverId,voiceTitle,voiceDesc);
}
});
});
}
function saveIntoLocation(id,title,desc){
var channelId = $("#channelIdResult").val();
var proId = $("#procastIdResult").val();
//alert(proId);
var url = "/taiyang/fm/saveInfoJson.action";
var postData = {
"en1.channelId" : channelId,
"en1.proTitle" : title,
"en1.proDesc" : desc,
"en1.podcastId" : proId,
"serverId" : id,
"appid" : appId
};
$.post(url, postData, function (data) {
if(data.success){
openSuccessLayer(data.message);
}else{
openFailureLayer(data.message);
}
},'json');
}
(2)WXFM.XML

 <package name="xiaovFmJson" extends="wxJsonData" namespace="/xiaov/fm">
!--微电台:保存录音标题到本地数据库-->
<action name="saveInfoJson" class="com.jerehsoft.taiyang.fm.action.weixin.WxRadioStationAction" method="saveInfo">
<result type="json"></result>
</action>
</package>

  

(3)WxRadioStationAction.java

public class WxRadioStationAction extends ActionSupport {
Log log = LogFactory.getLog(this.getClass());
private Map<String, Object> map1 = new HashMap<String, Object>(); ActionContext ac = ActionContext.getContext();
HttpServletRequest request = (HttpServletRequest) ac.get(ServletActionContext.HTTP_REQUEST); private Long memberid;
private String appid;
private String openid;
private String serverId; private boolean success;
private String message; @EntityInject
private WxFmProgramComment en;
@EntityInject
private WxFmProgrem en1; @Resource
IWxFmProgremService programService; /**
* 微电台录音:保存录音标题到本地数据库
*
* @return
* @throws Exception
*/
public String saveInfo() throws Exception {
//设置播客id
try {
//下载腾讯素材
if (serverId != null && !serverId.equals("")) {
CommAttachmentDetail file = mediaSer.downLoadFile(getAppid(), serverId);
if (file != null) {
//picPath:amr文件存放的全路径
String path = SystemConfig.get("sys.upload.dir");
String picPath = path + File.separator + file.getPathName() + file.getFileName();
//音频转换
Conversion conversion = new Conversion(); conversion.ToMp3("D:" + File.separator + "Program Files", picPath); String fileName = file.getFileName().substring(0, file.getFileName().indexOf(".")); String picPathDataBase = file.getPathName() + fileName + ".mp3"; en1.setFileAddr(picPathDataBase);
}
}
en1.setAppId(getAppid());
//时间
WxFmProgrem Progrem = programService.save(en1);
success = true;
map1.put("success", true);
map1.put("message", "提交成功");
} catch (Exception e) {
message = "提交失败";
success = false;
e.getStackTrace();
e.printStackTrace();
} return SUCCESS;
}
public String getAppid() {
return appid;
} public void setAppid(String appid) {
this.appid = appid;
}
public String getServerId() {
return serverId;
} public void setServerId(String serverId) {
this.serverId = serverId;
}
}

  

(4) Conversion.java

public class Conversion {
/**
* 将上传的录音转为mp3格式
* @param webroot 项目的根目录
* @param sourcePath 文件的相对地址
*/
public static void ToMp3(String webroot, String sourcePath){
//File file = new File(sourcePath);
String [] a =sourcePath.split("\\.");
String targetPath = a[0]+".mp3";//转换后文件的存储地址,直接将原来的文件名后加mp3后缀名
Runtime run = null;
try {
run = Runtime.getRuntime();
long start=System.currentTimeMillis();
//Process p=run.exec(webroot+"files/ffmpeg -i "+webroot+sourcePath+" -acodec libmp3lame "+webroot+targetPath);
// 执行ffmpeg.exe,前面是ffmpeg.exe的地址,中间是需要转换的文件地址,后面是转换后的文件地址。-i是转换方式,意思是可编码解码,mp3编码方式采用的是libmp3lame
Process p=run.exec(webroot+"/ffmpeg/bin/ffmpeg -i "+sourcePath+" -acodec libmp3lame "+targetPath);
//释放进程
p.getOutputStream().close();
p.getInputStream().close();
p.getErrorStream().close();
p.waitFor();
long end=System.currentTimeMillis();
//System.out.println(sourcePath+" convert success, costs:"+(end-start)+"ms");
//删除原来的文件
/*if(file.exists()){
file.delete();
}*/
} catch (Exception e) {
e.printStackTrace();
}finally{
//run调用lame解码器最后释放内存
run.freeMemory();
}
} public static void main(String[] args) {
ToMp3("D:\\Program Files","E:\\a.amr");
}
}

  (5)注意点:

3个地址:webroot,sourcePath为绝对路径,webroot+"/ffmpeg/bin/ffmpeg"是自己电脑安装的ffmpeg的安装路径

电脑要安装FFMPEG,FFmpeg是一套可以用来记录、转换数字音频、视频,并能将其转化为流的开源计算机程序。

FFMPEG的安装请参考:http://www.bubuko.com/infodetail-786878.html

  

05-11 03:30