码迷，mamicode.com
首页 > 微信 > 详细

小程序短视频项目———ffmpeg

时间：2018-10-05 23:03:32      阅读：349      评论：0      收藏：0      [点我收藏+]

标签：users   tst   create   edr   arraylist   gms   over   stat   相对路径   

视音频处理工具

技术分享图片

技术分享图片

 

二、ffmpeg与java的结合

首先在com.imooc.utils新建FFMpegTest类

package com.imooc.utils;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class FFMpegTest {

    private String ffmpegEXE;
    
    
    public FFMpegTest(String ffmpegEXE) {
        super();
        this.ffmpegEXE = ffmpegEXE;
    }
    
    public void convertor(String videoInputPath, String videoOutputPath) throws Exception {
//        ffmpeg -i input.mp4 output.avi
        /*
         * java调用cmd命令
         */
        List<String> command = new ArrayList<>();
        command.add(ffmpegEXE);
        
        command.add("-i");
        command.add(videoInputPath);
        command.add(videoOutputPath);
        
        for(String c : command) {
            System.out.print(c);
        }
        
        ProcessBuilder builder = new ProcessBuilder(command);
        Process process = builder.start();

        InputStream errorStream = process.getErrorStream();
        InputStreamReader inputStreamReader = new InputStreamReader(errorStream);
        BufferedReader br = new BufferedReader(inputStreamReader);
        
        String line = "";
        while ( (line = br.readLine()) != null ) {
        }
        
        if (br != null) {
            br.close();
        }
        if (inputStreamReader != null) {
            inputStreamReader.close();
        }
        if (errorStream != null) {
            errorStream.close();
        }
        
    }


    public static void main(String[] args) {
        FFMpegTest ffmpeg = new FFMpegTest("D:\\ffmpeg\\bin\\ffmpeg.exe");
        try {
            ffmpeg.convertor("C:\\Users\\Administrator\\Pictures\\单挑.mp4", 
                    "C:\\Users\\Administrator\\Pictures\\斗牛.avi");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

 

三、java合并视音频

MergeVideoMp3.class
package com.imooc.utils;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class MergeVideoMp3 {

    private String ffmpegEXE;
    
    public MergeVideoMp3(String ffmpegEXE) {
        super();
        this.ffmpegEXE = ffmpegEXE;
    }
    
    public void convertor(String videoInputPath, String mp3InputPath,
            double seconds, String videoOutputPath) throws Exception {
//        ffmpeg.exe -i 苏州大裤衩.mp4 -i bgm.mp3 -t 7 -y 新的视频.mp4
        List<String> command = new ArrayList<>();
        command.add(ffmpegEXE);
        
        command.add("-i");
        command.add(videoInputPath);
        
        command.add("-i");
        command.add(mp3InputPath);
        
        command.add("-t");
        command.add(String.valueOf(seconds));
        
        command.add("-y");
        command.add(videoOutputPath);
        
//        for (String c : command) {
//            System.out.print(c + " ");
//        }
        
        ProcessBuilder builder = new ProcessBuilder(command);
        Process process = builder.start();
        
        InputStream errorStream = process.getErrorStream();
        InputStreamReader inputStreamReader = new InputStreamReader(errorStream);
        BufferedReader br = new BufferedReader(inputStreamReader);
        
        String line = "";
        while ( (line = br.readLine()) != null ) {
        }
        
        if (br != null) {
            br.close();
        }
        if (inputStreamReader != null) {
            inputStreamReader.close();
        }
        if (errorStream != null) {
            errorStream.close();
        }
        
    }

    public static void main(String[] args) {
        MergeVideoMp3 ffmpeg = new MergeVideoMp3("D:\\ffmpeg\\bin\\ffmpeg.exe");
        try {
            ffmpeg.convertor("C:\\鬼.mp4", "C:\\music.mp3", 7.1, "C:\\这是通过java生产的视频.mp4");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

 

package com.imooc.utils;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class FFMpegTest {

    private String ffmpegEXE;
    
    public FFMpegTest(String ffmpegEXE) {
        super();
        this.ffmpegEXE = ffmpegEXE;
    }
    
    public void convertor(String videoInputPath, String videoOutputPath) throws Exception {
//        ffmpeg -i input.mp4 -y output.avi
        List<String> command = new ArrayList<>();
        command.add(ffmpegEXE);
        
        command.add("-i");
        command.add(videoInputPath);
        command.add("-y");
        command.add(videoOutputPath);
        
        for (String c : command) {
            System.out.print(c + " ");
        }
        
        ProcessBuilder builder = new ProcessBuilder(command);
        Process process = builder.start();
        
        InputStream errorStream = process.getErrorStream();
        InputStreamReader inputStreamReader = new InputStreamReader(errorStream);
        BufferedReader br = new BufferedReader(inputStreamReader);
        
        String line = "";
        while ( (line = br.readLine()) != null ) {
        }
        
        if (br != null) {
            br.close();
        }
        if (inputStreamReader != null) {
            inputStreamReader.close();
        }
        if (errorStream != null) {
            errorStream.close();
        }
        
    }

    public static void main(String[] args) {
        FFMpegTest ffmpeg = new FFMpegTest("D:\\ffmpeg\\bin\\ffmpeg.exe");
        try {
            ffmpeg.convertor("C:\\鬼.mp4", "C:\\北京北京.avi");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

 

四、小程序上传视频后调用视频处理工具联调

 技术分享图片

 五、保存视频信息到数据库

技术分享图片

技术分享图片

 

六、截图（视频封面）保存到数据库中

1、后端接口的开发

    @ApiOperation(value="用户上传封面", notes="用户上传封面的接口")
    @ApiImplicitParams({
        @ApiImplicitParam(name="userId", value="用户id", required=true, 
                dataType="String", paramType="form"),
        @ApiImplicitParam(name="videoId", value="视频主键id", required=true, 
                dataType="String", paramType="form"),
    })
    @PostMapping(value="/uploadCover", headers="content-type=multipart/form-data")
    public IMoocJSONResult uploadCover(String userId,String videoId,
                        @ApiParam(value="短视频", required=true)
                        MultipartFile file) throws Exception {  //Alt + shirt + R
        
        if (StringUtils.isBlank(videoId) || StringUtils.isBlank(userId)) {
            return IMoocJSONResult.errorMsg("视频主键id和用户id不能为空...");
        }
        
        //文件保存的空间
        String fileSpace = "D:/imooc_videos_dev";
        //保存到数据库的相对路径
        String uploadPathDB = "/" + userId + "/video" ;
        FileOutputStream fileOutputStream = null;
        InputStream inputStream = null;
        
        
        String finalCoverPath = "";
        try {
            if(file != null ) {
                
                
                String fileName = file.getOriginalFilename();
                if(StringUtils.isNoneBlank(fileName)) {
                    //文件上传的最终路径
                    finalCoverPath = fileSpace + uploadPathDB + "/" + fileName;
                    //设置数据库保存的路径
                    uploadPathDB += ("/" + fileName);
                    
                    File outFile = new File(finalCoverPath);
                    if(outFile.getParentFile() != null || !outFile.getParentFile().isDirectory()) {
                        
                        //创建父文件夹
                        outFile.getParentFile().mkdirs();
                    }
                    
                    fileOutputStream = new FileOutputStream(outFile);
                    inputStream = file.getInputStream();
                    IOUtils.copy(inputStream, fileOutputStream);
                    
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            if(fileOutputStream != null) {
                fileOutputStream.flush();
                fileOutputStream.close();
            }
        }
        
        videoService.updateVideo(videoId, uploadPathDB);

        
        return IMoocJSONResult.ok();
    
    
    }

 

2、前端js的开发

 upload: function(e) {
      var me = this;

      var bgmId = e.detail.value.bgmId;
      var desc = e.detail.value.desc;

      console.log("bgmId:" + bgmId);
      console.log("desc:" + desc);

      var duration = me.data.videoParams.duration;
      var tmpheight = me.data.videoParams.tmpHeight;
      var tmpwidth = me.data.videoParams.tmpWidth;
      var tmpVideoUrl = me.data.videoParams.tmpVideoUrl;
      var tmpCoverUrl = me.data.videoParams.tmpCoverUrl;

      //上传短视频
      wx.showLoading({
        title: ‘Loading...‘,
      })


      var serverUrl = app.serverUrl;
      wx.uploadFile({
        url: serverUrl + ‘/video/upload‘,
        
        formData: {
          userId: app.userInfo.id,    
          bgmId: bgmId,
          desc: desc,
          videoSeconds: duration,
          videoHeight: tmpheight,
          videoWidth: tmpwidth
        },
        
        filePath: tmpVideoUrl,
        name: ‘file‘,
        header: {
          ‘content-type‘: ‘application/json‘ // 默认值
        },
        success(res) {
          var data = JSON.parse(res.data);
          wx.hideLoading();
          if (data.status == 200) {

            var videoId = data.data;
            
            wx.showLoading({
              title: ‘上传中...‘,
            })


            wx.uploadFile({
              url: serverUrl + ‘/video/uploadCover‘,

              formData: {
                userId: app.userInfo.id,
                videoId: videoId,
              },

              filePath: tmpCoverUrl,
              name: ‘file‘,
              header: {
                ‘content-type‘: ‘application/json‘ // 默认值
              },
              success(res) {
                var data = JSON.parse(res.data);
                wx.hideLoading();
                if (data.status == 200) {
                  wx.showToast({
                    title: ‘上传成功！~~‘,
                    icon: "success"
                  });


                } else {
                  wx.showToast({
                    title: ‘上传失败！~~‘,
                    icon: "success"
                  })
                }

              }
            });
            wx.navigateBack({
              delta: 1,
            })
          } else {
            wx.showToast({
              title: ‘上传失败！~~‘,
              icon: "success"
            })
          } 

        }
      })
    }

 

在用手机端进行联调时，上传封面功能并不能实现，这是微信小程序的一个小坑。需要用ffmpeg去截视频某一帧的图才行。

 

七、使用ffmpeg生成截图

技术分享图片

生成截图工具类

package com.imooc.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.List;

/**
 * 
 * @Description: 获取视频的信息
 */
public class FetchVideoCover {
    // 视频路径
    private String ffmpegEXE;

    public void getCover(String videoInputPath, String coverOutputPath) throws IOException, InterruptedException {
//        ffmpeg.exe -ss 00:00:01 -i spring.mp4 -vframes 1 bb.jpg
        List<String> command = new java.util.ArrayList<String>();
        command.add(ffmpegEXE);
        
        // 指定截取第1秒
        command.add("-ss");
        command.add("00:00:06");
                
        command.add("-y");
        command.add("-i");
        command.add(videoInputPath);
        
        command.add("-vframes");
        command.add("1");
        
        command.add(coverOutputPath);
        
        for (String c : command) {
            System.out.print(c + " ");
        }
        
        ProcessBuilder builder = new ProcessBuilder(command);
        Process process = builder.start();
        
        InputStream errorStream = process.getErrorStream();
        InputStreamReader inputStreamReader = new InputStreamReader(errorStream);
        BufferedReader br = new BufferedReader(inputStreamReader);
        
        String line = "";
        while ( (line = br.readLine()) != null ) {
        }
        
        if (br != null) {
            br.close();
        }
        if (inputStreamReader != null) {
            inputStreamReader.close();
        }
        if (errorStream != null) {
            errorStream.close();
        }
    }

    public String getFfmpegEXE() {
        return ffmpegEXE;
    }

    public void setFfmpegEXE(String ffmpegEXE) {
        this.ffmpegEXE = ffmpegEXE;
    }

    public FetchVideoCover() {
        super();
    }

    public FetchVideoCover(String ffmpegEXE) {
        this.ffmpegEXE = ffmpegEXE;
    }
    
    public static void main(String[] args) {
        // 获取视频信息。
        FetchVideoCover videoInfo = new FetchVideoCover("D:\\ffmpeg\\bin\\ffmpeg.exe");
        try {
            videoInfo.getCover("c:\\北京北京.avi","c:\\北京.jpg");

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

 

在controller补充对视频的截图

    @ApiOperation(value="用户上传视频", notes="用户上传视频的接口")
    @ApiImplicitParams({
        @ApiImplicitParam(name="userId", value="用户id", required=true, 
                dataType="String", paramType="form"),
        @ApiImplicitParam(name="bgmId", value="背景音乐id", required=false, 
                dataType="String", paramType="form"),
        @ApiImplicitParam(name="videoSeconds", value="背景音乐播放长度", required=true, 
                dataType="String", paramType="form"),
        @ApiImplicitParam(name="videoWidth", value="视频宽度", required=true, 
                dataType="String", paramType="form"),
        @ApiImplicitParam(name="videoHeight", value="视频高度", required=true, 
                dataType="String", paramType="form"),
        @ApiImplicitParam(name="desc", value="视频描述", required=false, 
                dataType="String", paramType="form")
    })
    @PostMapping(value="/upload", headers="content-type=multipart/form-data")
    public IMoocJSONResult upload(String userId, 
            String bgmId, double videoSeconds, 
            int videoWidth, int videoHeight,
            String desc,
            @ApiParam(value="短视频", required=true)
            MultipartFile file) throws Exception {  //Alt + shirt + R
        
        if (StringUtils.isBlank(userId)) {
            return IMoocJSONResult.errorMsg("用户id不能为空...");
        }
        
        //文件保存的空间
        String fileSpace = "D:/imooc_videos_dev";
        //保存到数据库的相对路径
        String uploadPathDB = "/" + userId + "/video" ;
        String coverPathDB = "/" + userId + "/video";
        
        
        FileOutputStream fileOutputStream = null;
        InputStream inputStream = null;
        
        
        String finalVideoPath = "";
        try {
            if(file != null ) {
                
                
                String fileName = file.getOriginalFilename();
                
                String fileNamePrefix = fileName.split("\\.")[0];
                
                if(StringUtils.isNoneBlank(fileName)) {
                    //文件上传的最终路径
                    finalVideoPath = fileSpace + uploadPathDB + "/" + fileName;
                    //设置数据库保存的路径
                    uploadPathDB += ("/" + fileName);
                    coverPathDB = coverPathDB + "/" + fileNamePrefix + ".jpg";
                    
                    File outFile = new File(finalVideoPath);
                    if(outFile.getParentFile() != null || !outFile.getParentFile().isDirectory()) {
                        
                        //创建父文件夹
                        outFile.getParentFile().mkdirs();
                    }
                    
                    fileOutputStream = new FileOutputStream(outFile);
                    inputStream = file.getInputStream();
                    IOUtils.copy(inputStream, fileOutputStream);
                    
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            if(fileOutputStream != null) {
                fileOutputStream.flush();
                fileOutputStream.close();
            }
        }
        
        //判断bgmid是否为空，如果不为空，
        //那就查询bgm的信息，并且合并视频，生产新的视频
        if (StringUtils.isNotBlank(bgmId)) {
            Bgm bgm = bgmService.queryBgmById(bgmId);
            String mp3InputPath = FILE_SPACE + bgm.getPath();
            
            MergeVideoMp3 tool = new MergeVideoMp3(FFMPEG_EXE);
            String videoInputPath = finalVideoPath;
            
            String videoOutputName = UUID.randomUUID().toString() + ".mp4";
            uploadPathDB = "/" + userId + "/video" + "/" + videoOutputName;
            finalVideoPath = FILE_SPACE + uploadPathDB;
            tool.convertor(videoInputPath, mp3InputPath, videoSeconds, finalVideoPath);
        }
        System.out.println("uploadPathDB=" + uploadPathDB);
        System.out.println("finalVideoPath=" + finalVideoPath);
        
        //对视频进行截图
        FetchVideoCover videoInfo = new FetchVideoCover(FFMPEG_EXE);
        videoInfo.getCover(finalVideoPath, FILE_SPACE + coverPathDB);
        
        //保存视频信息到数据库
        Videos video = new Videos();
        video.setAudioId(bgmId);
        video.setUserId(userId);
        video.setVideoSeconds((float)videoSeconds);
        video.setVideoHeight(videoHeight);
        video.setVideoWidth(videoWidth);
        video.setVideoDesc(desc);
        
        video.setVideoPath(uploadPathDB);
        video.setCoverPath(coverPathDB);
        video.setStatus(VideoStatusEnum.SUCCESS.value);
        video.setCreateTime(new Date());
        
        String videoId = videoService.saveVideo(video);
//        System.out.println("desc:"+desc);
        
        return IMoocJSONResult.ok(videoId);
    
    
    }

 

小程序短视频项目———ffmpeg

标签：users   tst   create   edr   arraylist   gms   over   stat   相对路径   

原文地址：https://www.cnblogs.com/bozzzhdz/p/9743739.html
踩
(0)
赞
(0)
   
举报
评论 一句话评论（0）
登录后才能评论！
分享档案
更多>
2021年07月29日 (22)
2021年07月28日 (40)
2021年07月27日 (32)
2021年07月26日 (79)
2021年07月23日 (29)
2021年07月22日 (30)
2021年07月21日 (42)
2021年07月20日 (16)
2021年07月19日 (90)
2021年07月16日 (35)
周排行
mamicode.com排行更多图片
更多
友情链接
兰亭集智   国之画   百度统计   站长统计   阿里云   chrome插件   新版天听网
关于我们 - 联系我们 - 留言反馈
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码！