java合成简单音频处理

2021-03-19 21:33:07 阅读：187 来源： 互联网

标签：commands amrUrl java String 音频 add new 合成 ffmpeg

项目中处理IM 录音模块，因为IOS 录音本身限制较多，只能单边录音，所以考虑了java 合成，由双端分别上传,因为坑了很久，所以希望对大家也有帮助

执行命令：

 1628  ls
 1629  mkdir ffmpeg
 1630  cd ffmpeg/
 1631  ls
 1632  wget https://johnvansickle.com/ffmpeg/builds/ffmpeg-git-amd64-static.tar.xz
 1633  ls
 1634  xz -d ffmpeg-git-amd64-static.tar.xz
 1635  ls
 1636  tar -xvf ffmpeg-git-amd64-static.tar
 1637  ls
 1638  cd ffmpeg-git-20200909-amd64-static/
 1639  ls
 1640  ./ffmpeg
 1641  ls
 1642  pwd
 1643  cd /usr/bin
 1644  ln -s /data/im-boss/ffmpeg/ffmpeg-git-20200909-amd64-static/ffmpeg ffmpeg
 1645  ln -s /data/im-boss/ffmpeg/ffmpeg-git-20200909-amd64-static/ffprobe ffprobe
 1646  ffmpeg

执行代码工具类

public class AudioUtil {

    private static Logger LOG = LoggerFactory.getLogger(AudioUtil.class);



    private static int doWaitFor(Process process) {
        int exitValue = -1; // returned to caller when p is finished
        InputStream error = process.getErrorStream();
        InputStream is = process.getInputStream();
        byte[] b = new byte[1024];
        int readbytes = -1;
        try {
            while ((readbytes = error.read(b)) != -1) {
                LOG.info("标准错误输出信息：" + new String(b, 0, readbytes));
            }
            while ((readbytes = is.read(b)) != -1) {
                LOG.info("标准输出信息：" + new String(b, 0, readbytes));
            }
        } catch (IOException e) {
            LOG.error("等待进程结束出现错误！");
            e.printStackTrace();
        } finally {
            try {
                error.close();
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }

        }
        return exitValue;
    }

    /**
     * 音频混合
     *
     * /Users/mufeng/Downloads/1.mp3
     */
    public static void mixAudio(String remoteTarget1, String remoteTarget2, String outFilePath) {

        List<String> _commands = new ArrayList<>();
        _commands.add("ffmpeg");
        _commands.add("-i");
        _commands.add(remoteTarget1);
        _commands.add("-i");
        _commands.add(remoteTarget2);
        _commands.add("-acodec");

        _commands.add("libmp3lame");
        _commands.add("-ab");
        _commands.add("96000");
        _commands.add("-ac");
        _commands.add("1");
        _commands.add("-ar");
        _commands.add("22050");


        _commands.add("-filter_complex");
        _commands.add("amix=inputs=2:duration=longest:dropout_transition=2");
        _commands.add("-strict");
        _commands.add("-2");
        _commands.add(outFilePath);

        String[] commands = new String[_commands.size()];
        for (int i = 0; i < _commands.size(); i++) {
            commands[i] = _commands.get(i);
        }

        try {
            ProcessBuilder builder = new ProcessBuilder(commands);
            builder.command(commands);
            Process p = builder.start();
            doWaitFor(p);
            p.destroy();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private static void main(String args[]){
//        String mp3file1="/Users/mufeng/Downloads/1.mp3";
//        String mp3file2="/Users/mufeng/Downloads/2.mp3";
        String mp3file3="/Users/mufeng/Downloads/3.mp3";
        String mp3file1="http://8.222.201.38:8888/amr2mp3?path=http://8.222.201.38:80/fs/2/2020/09/29/19/-cAs-szz-2-1601379918-5xyqQnNy_img1601379916335.amr";
        String mp3file2="http://8.222.201.38:8888/amr2mp3?path=http://8.222.201.38:80/fs/2/2020/09/29/19/5m7959__-2-1601379917-ENTLvCfv_img1601379915613.amr";
        mixAudio(mp3file1,mp3file2,mp3file3);
    }



    public static void amr2mp3(String sourceUrl, File target) throws MalformedURLException, EncoderException {
        //Audio Attributes
        AudioAttributes audio = new AudioAttributes();
        audio.setCodec("libmp3lame");
        audio.setBitRate(128000);
        audio.setChannels(2);
        audio.setSamplingRate(44100);

        //Encoding attributes
        EncodingAttributes attrs = new EncodingAttributes();
        attrs.setOutputFormat("mp3");
        attrs.setAudioAttributes(audio);

        //Encode
        Encoder encoder = new Encoder();
        encoder.encode(new MultimediaObject(new URL(sourceUrl)), target, attrs);
        LOG.info("amr2mp3 encoder success:sourceUrl:{}", sourceUrl);
    }
}

合成转换的访问，访问格式两种：‘
单一的：
http://localhost:9001/api/audio/amr2mp3?path=http://143.129.79.195/group1/M00/00/0C/rBAyIWBUjEeAJ4i1AAVkOq3KTig669.wav
合成的：
http://localhost:9001/api/audio/amr2mp3?complexMp3=1&path=http://143.129.79.195/group1/M00/00/0C/rBAyIWBUjEeAJ4i1AAVkOq3KTig669.wav,path=http://143.129.79.195/group1/M00/00/0C/rBAyIWBUjEeAJ4i1AAVkOq3KTig669.wav

@Slf4j
@RequestMapping("/audio")
@RestController
public class AudioController {

    @Value("${zz.audio.cache.dir}")
    String cacheDirPath;
    private File cacheDir;

    @PostConstruct
    public void init() {
        cacheDir = new File(cacheDirPath);
        if (!cacheDir.exists()) {
            cacheDir.mkdirs();
        }
    }

    @GetMapping("/amr2mp3")
    public CompletableFuture<ResponseEntity<InputStreamResource>> amr2mp3(@RequestParam("path") String amrUrl,@RequestParam(value = "complexMp3",required = false) Integer complex) throws FileNotFoundException {
       log.info("amr2mp3 amrUrl:{}"+amrUrl);
        MediaType mediaType = new MediaType("audio", "mp3");
        String fname;
        final List<String> urlList=new ArrayList<>();
        if(complex!=null&&complex.equals(1)&&amrUrl.contains(",")){
            urlList.addAll(Arrays.asList(amrUrl.split(",")));
            fname = urlList.get(0).substring(urlList.get(0).lastIndexOf('/') + 1);
            fname = fname+"-"+urlList.get(1).substring(urlList.get(1).lastIndexOf('/') + 1) + ".mp3";
        }else {
            fname = amrUrl.substring(amrUrl.lastIndexOf('/') + 1) + ".mp3";
        }
        final String finalFname=fname;
        File mp3File = new File(cacheDir, finalFname);
        if (mp3File.exists()) {
            InputStreamResource resource = new InputStreamResource(new FileInputStream(mp3File));
            return CompletableFuture.completedFuture(ResponseEntity.ok()
//                .header(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=" + mp3File.getName())
                    .contentType(mediaType)
                    .contentLength(mp3File.length())
                    .body(resource));
        }

        return CompletableFuture.supplyAsync(new Supplier<ResponseEntity<InputStreamResource>>() {
            /**
             * Gets a result.
             *
             * @return a result
             */
            @Override
            public ResponseEntity<InputStreamResource> get() {
                try {
                    InputStreamResource resource;
                    if(complex!=null&&complex.equals(1)&&amrUrl.contains(",")){
                        AudioUtil.mixAudio(urlList.get(0),urlList.get(1),cacheDirPath + finalFname);
                        File file = new File(cacheDirPath + finalFname);
                        resource= new InputStreamResource(new FileInputStream(file));
                    }else {
                        AudioUtil.amr2mp3(amrUrl, mp3File);
                        resource= new InputStreamResource(new FileInputStream(mp3File));
                    }
                    return ResponseEntity.ok()
//                        .header(HttpHeaders.CONTENT_DISPOSITION, "attachment;filename=" + mp3File.getName())
                            .contentType(mediaType)
                            .contentLength(mp3File.length())
                            .body(resource);
                } catch (MalformedURLException e) {
                    log.info("amr2mp3 MalformedURLException amrUrl:{}", amrUrl, e);
                } catch (EncoderException e) {
                    log.info("amr2mp3 EncoderException amrUrl:{}", amrUrl, e);
                } catch (FileNotFoundException e) {
                    log.info("amr2mp3 FileNotFoundException amrUrl:{}", amrUrl, e);
                }
                return ResponseEntity.status(404).build();
            }
        });
    }





}

标签：commands,amrUrl,java,String,音频,add,new,合成,ffmpeg
来源： https://blog.csdn.net/icool_ali/article/details/115016186

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。

ICode9

java合成简单音频处理