java视频转码
Java偷走了我的微笑 人气:0废话不多说,直接上代码:
这是转码工具类:
package com.gcsoft.pyas.sysbase.utils; import com.gcsoft.pyas.AppProperties; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import java.util.List; import java.util.UUID; /** * 视频转码工具类 * * @author jwc */ @Component public class ConverVideoUtils { @Autowired private AppProperties appProperties; protected final Logger logger = LoggerFactory.getLogger(this.getClass()); /** * 转换视频格式 * * @param sourceVideoPath 视频地址 * @return */ public String beginConver(String sourceVideoPath) { //转码格式 String targetExtension = appProperties.getVideoFormat(); //是否删除原文件 Boolean isDeleteResult = appProperties.getIsDeleteResult(); File fi = new File(sourceVideoPath); String fileName = fi.getName(); //文件名不带扩展名 String fileRealName = fileName.substring(0, fileName.lastIndexOf(".")); logger.info("接收到文件(" + sourceVideoPath + ")需要转换"); if (!checkfile(sourceVideoPath)) { logger.error(sourceVideoPath + "文件不存在" + " "); return ""; } long beginTime = System.currentTimeMillis(); logger.info("开始转文件(" + sourceVideoPath + ")"); String path = process(fileRealName, sourceVideoPath, targetExtension, isDeleteResult); if (StringUtil.isNotEmpty(path)) { logger.info("转换成功"); long endTime = System.currentTimeMillis(); long timeCha = (endTime - beginTime); String totalTime = sumTime(timeCha); logger.info("转换视频格式共用了:" + totalTime + " "); if (isDeleteResult) { deleteFile(sourceVideoPath); } return path; } else { return ""; } } /** * 实际转换视频格式的方法 * * @param fileRealName 文件名不带扩展名 * @param sourceVideoPath 原文件地址 * @param targetExtension 目标视频扩展名 * @param isDeleteResult 转换完成后是否删除源文件 * @return */ private String process(String fileRealName, String sourceVideoPath, String targetExtension, boolean isDeleteResult) { int type = checkContentType(sourceVideoPath); String path = ""; if (type == 0) { //如果type为0用ffmpeg直接转换 path = processVideoFormat(sourceVideoPath, fileRealName, targetExtension, isDeleteResult); } else if (type == 1) { //如果type为1,将其他文件先转换为avi,然后在用ffmpeg转换为指定格式 String aviFilePath = processAVI(fileRealName, sourceVideoPath); if (aviFilePath == null) { // avi文件没有得到 return ""; } else { logger.info("开始转换:"); path = processVideoFormat(aviFilePath, fileRealName, targetExtension, isDeleteResult); if (isDeleteResult) { deleteFile(aviFilePath); } } } return path; } /** * 检查文件类型 * * @param sourceVideoPath 原文件地址 * @return */ private int checkContentType(String sourceVideoPath) { String type = sourceVideoPath.substring(sourceVideoPath.lastIndexOf(".") + 1).toLowerCase(); // ffmpeg能解析的格式:(asx,asf,mpg,wmv,3gp,mp4,mov,avi,flv等) if (type.equals("avi")) { return 0; } else if (type.equals("mpg")) { return 0; } else if (type.equals("wmv")) { return 0; } else if (type.equals("3gp")) { return 0; } else if (type.equals("mov")) { return 0; } else if (type.equals("mp4")) { return 0; } else if (type.equals("asf")) { return 0; } else if (type.equals("asx")) { return 0; } else if (type.equals("flv")) { return 0; } // 对ffmpeg无法解析的文件格式(wmv9,rm,rmvb等), // 可以先用别的工具(mencoder)转换为avi(ffmpeg能解析的)格式. else if (type.equals("wmv9")) { return 1; } else if (type.equals("rm")) { return 1; } else if (type.equals("rmvb")) { return 1; } return 9; } /** * 检查文件是否存在 * * @param path 文件地址 * @return */ private boolean checkfile(String path) { File file = new File(path); if (!file.isFile()) { return false; } else { return true; } } /** * 对ffmpeg无法解析的文件格式(wmv9,rm,rmvb等), 可以先用别的工具(mencoder)转换为avi(ffmpeg能解析的)格式. * * @param fileRealName 文件名不带扩展名 * @param sourceVideoPath 原文件地址 * @return */ private String processAVI(String fileRealName, String sourceVideoPath) { /** * mencoder.exe的地址 */ String menCoderPath = appProperties.getMencoderPath(); /** * 转码后的存放视频地址 avi格式 */ String videoFolder = appProperties.getUploadAndFormatPath(); List<String> commend = new java.util.ArrayList<>(); commend.add(menCoderPath); commend.add(sourceVideoPath); commend.add("-oac"); commend.add("mp3lame"); commend.add("-lameopts"); commend.add("preset=64"); commend.add("-ovc"); commend.add("xvid"); commend.add("-xvidencopts"); commend.add("bitrate=600"); commend.add("-of"); commend.add("avi"); commend.add("-o"); commend.add(videoFolder + fileRealName + ".avi"); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process p = builder.start(); doWaitFor(p); return videoFolder + fileRealName + ".avi"; } catch (Exception e) { e.printStackTrace(); return null; } } /** * 转换为指定格式 * ffmpeg能解析的格式:(asx,asf,mpg,wmv,3gp,mp4,mov,avi,flv等) * * @param oldFilePath 源文件地址 * @param fileRealName 文件名不带扩展名 * @param targetExtension 目标格式扩展名 .xxx * @return */ private String processVideoFormat(String oldFilePath, String fileRealName, String targetExtension, Boolean isDeleteResult) { /** * ffmpeg.exe的地址 */ String ffmpegPath = appProperties.getFfmpegPath(); /** * 转码后的存放视频地址 mp4格式 */ String targetFolder = appProperties.getUploadAndFormatPath(); if (!checkfile(oldFilePath)) { logger.error(oldFilePath + "文件不存在"); return ""; } List<String> commend = new ArrayList<>(); commend.add(ffmpegPath); commend.add("-i"); commend.add(oldFilePath); commend.add("-vcodec"); commend.add("mpeg4"); commend.add("-q"); commend.add("0"); commend.add("-y"); commend.add(targetFolder + fileRealName + targetExtension); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process p = builder.start(); doWaitFor(p); p.destroy(); String videoPath = targetFolder + fileRealName + targetExtension; String path = this.processVideoFormatH264(videoPath, ffmpegPath, targetFolder, targetExtension, isDeleteResult); return path; } catch (Exception e) { e.printStackTrace(); return ""; } } /** * 将mpeg4转为h264编码 为了支持播放器 * * @param path * @param ffmpegPath * @return */ private String processVideoFormatH264(String path, String ffmpegPath, String targetFolder, String targetExtension, Boolean isDeleteResult) { if (!checkfile(path)) { logger.error(path + "文件不存在"); return ""; } String newFilePath = targetFolder + UUID.randomUUID().toString() + targetExtension; List<String> commend = new ArrayList<>(); commend.add(ffmpegPath); commend.add("-i"); commend.add(path); commend.add("-vcodec"); commend.add("h264"); commend.add("-q"); commend.add("0"); commend.add("-y"); commend.add(newFilePath); try { ProcessBuilder builder = new ProcessBuilder(); builder.command(commend); Process p = builder.start(); doWaitFor(p); p.destroy(); if (isDeleteResult) { deleteFile(path); } return newFilePath; } catch (Exception e) { e.printStackTrace(); return ""; } } public int doWaitFor(Process p) { InputStream in = null; InputStream err = null; int exitValue = -1; try { in = p.getInputStream(); err = p.getErrorStream(); boolean finished = false; while (!finished) { try { while (in.available() > 0) { in.read(); } while (err.available() > 0) { err.read(); } exitValue = p.exitValue(); finished = true; } catch (IllegalThreadStateException e) { Thread.sleep(500); } } } catch (Exception e) { logger.error("doWaitFor();: unexpected exception - " + e.getMessage()); } finally { try { if (in != null) { in.close(); } } catch (IOException e) { logger.info(e.getMessage()); } if (err != null) { try { err.close(); } catch (IOException e) { logger.info(e.getMessage()); } } } return exitValue; } /** * 删除文件方法 * * @param filepath */ public void deleteFile(String filepath) { File file = new File(filepath); if (file.delete()) { logger.info("文件" + filepath + "已删除"); } } /** * 计算转码时间 * * @param ms * @return */ public String sumTime(long ms) { int ss = 1000; long mi = ss * 60; long hh = mi * 60; long dd = hh * 24; long day = ms / dd; long hour = (ms - day * dd) / hh; long minute = (ms - day * dd - hour * hh) / mi; long second = (ms - day * dd - hour * hh - minute * mi) / ss; long milliSecond = ms - day * dd - hour * hh - minute * mi - second * ss; String strDay = day < 10 ? "0" + day + "天" : "" + day + "天"; String strHour = hour < 10 ? "0" + hour + "小时" : "" + hour + "小时"; String strMinute = minute < 10 ? "0" + minute + "分" : "" + minute + "分"; String strSecond = second < 10 ? "0" + second + "秒" : "" + second + "秒"; String strMilliSecond = milliSecond < 10 ? "0" + milliSecond : "" + milliSecond; strMilliSecond = milliSecond < 100 ? "0" + strMilliSecond + "毫秒" : "" + strMilliSecond + " 毫秒"; return strDay + " " + strHour + ":" + strMinute + ":" + strSecond + " " + strMilliSecond; } }
工具类用到的参数
#视频上传和转码后存放的位置 video.trans.coding=D:/PYAS/TMS/upload/video/ #ffmpeg地址 tool.ffmpeg.path=D:/FFmpeg/ffmpeg.exe #mencoder地址 tool.mencoder.path=D:/FFmpeg/mencoder.exe #转码格式 video.format=.mp4 #是否删除源文件 video.isdelete.result=false
工具类用到的转码工具分别是:
ffmpeg、mencoder
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