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一、定义视频上传请求接口
public AjaxResult videoUploadFile(MultipartFile file){
try {
if(null == file || file.isEmpty()){
return AjaxResult.error("文件为空");
}
String ossFilePrefix = StringUtils.genUUID();
String fileName = ossFilePrefix +"-"+ file.getOriginalFilename();
String fileurl = AliOssUtils.videoUploadFile(file,fileName);
AjaxResult ajax = AjaxResult.success();
ajax.put("fileName", "after_"+fileName);
ajax.put("url", fileurl);
return ajax;
} catch (Exception e) {
return AjaxResult.error(e.getMessage());
}
}
二、视频暂存至本地文件夹
public static final String uploadVideo(String baseDir, MultipartFile file, String fileName) throws FileSizeLimitExceededException, IOException {
File desc = getAbsoluteFile(baseDir, fileName);
file.transferTo(desc);
String pathFileName = getPathFileName(baseDir, fileName);
return pathFileName;
}
三、开始压缩视频
public static boolean toCompressFile(String convertFile,String targetFile){
try{
/**将视频压缩为 每秒15帧 平均码率600k 画面的宽与高 为1280*720*/
String cutCmd="ffmpeg -i " + convertFile + " -r 15 -b:v 600k -s 1280x720 "+ targetFile;
log.info("cutCmd: " + cutCmd);
runCmd(cutCmd);
log.info("文件:"+convertFile+" 视屏压缩完成");
}catch(Exception e){
e.printStackTrace();
log.info("压缩文件出现异常:"+e.getMessage());
return false;
}
return true;
}
四、上传至阿里云并获取压缩后的视频路径
private static String getFileUrl(String path) throws IOException {
File file = new File(path);
FileInputStream fileInputStream = new FileInputStream(file);
MultipartFile multipartFile1 = new MockMultipartFile(file.getName(), file.getName(), ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream);
uploadFile(multipartFile1, file.getName());
String url = getUrl(file.getName());
return url;
}
五、核心调用
public static String videoUploadFile(MultipartFile multipartFile, String fileName) throws IOException {
//存放路径
String filePath = FileUploadUtils.uploadVideo(getDefaultBaseDir(), multipartFile, fileName);
String convertFile = filePath.replace("/profile", getDefaultBaseDir()).replaceAll("//", "/");
//字符串第一个字符最后出现的下标
int lastIndex = convertFile.lastIndexOf("/");
StringBuilder sb = new StringBuilder(convertFile);
String convertFile1 = sb.insert(lastIndex + 1, "after_").toString();
boolean flag = toCompressFile(convertFile, convertFile1);
if (!flag) {
throw new CustomException("文件压缩出现异常");
}
//读取压缩后的文件并上传至阿里云
String url = getFileUrl(convertFile1);
//删除本地暂存文件
FileUtils.deleteFile(convertFile);
log.info("文件:" + convertFile + " 删除成功");
FileUtils.deleteFile(convertFile1);
log.info("文件:" + convertFile1 + " 删除成功");
return url;
}
六、spring boot的yml配置文件
修改application.yml文件:
spring:
servlet:
mvc:
async:
request-timeout: 2000000
修改application-prd.yml文件:
spring:
servlet:
multipart:
max-file-size: 1024MB
max-request-size: 1024MB