微信录音接口的调用以及amr文件转码MP3文件的实现

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

  

原文地址:https://www.cnblogs.com/langdon/p/5405442.html