java 做视频转换主要用到开源的ffmpeg或者mencoder,还要有MP4Box。
注:由于平时都没有时间写博客,所以思路我就不写了,有问题问我,不一定马上回复。
详细介绍:
ffmpeg:http://www.ffmpeg.org/
mencoder:http://en.wikipedia.org/wiki/MEncoder
MP4Box:http://gpac.wp.mines-telecom.fr/mp4box/mp4box-documentation/
主要实现:
1.获取视频元数据信息
2.视频相互转换
3.视频加文字及图片水印
4.视频截图
思路:
配置文件中定义各转换工具的路径:(相关工具去官网下载)
- <!-- ################配置系统用到的转换工具相关参数 开始....-->
- <!-- ##ffmpeg.so文件路径 -->
- <param name="ffmpegPath" value="D:\conver\ffmpeg-win.exe" />
- <!-- ##memcoder.so文件路径 -->
- <param name="mencoderPath" value="D:\conver\mencoder.exe" />
- <!-- ##给视频加水印的shell脚本路径 -->
- <param name="shellPath" value="D:\conver\coverVideo.bat" />
- <!-- ##定义MP4Box工具路径 -->
- <param name="mp4BoxPath" value="D:\conver\MP4Box" />
- <!-- ##定义图片转换工具路径 -->
- <param name="imgConverPath" value="C:/Program Files/ImageMagick-6.3.9-Q16/convert.exe" />
- <!-- ################配置系统用到的转换工具相关参数 结束-->
2.获取视频音频的各项属性帮助类
- import java.io.BufferedReader;
- import java.io.InputStreamReader;
- import java.util.List;
- import org.apache.commons.lang.StringUtils;
- import org.apache.log4j.Logger;
- import org.apache.oro.text.regex.MalformedPatternException;
- import org.apache.oro.text.regex.MatchResult;
- import org.apache.oro.text.regex.Pattern;
- import org.apache.oro.text.regex.PatternCompiler;
- import org.apache.oro.text.regex.PatternMatcher;
- import org.apache.oro.text.regex.Perl5Compiler;
- import org.apache.oro.text.regex.Perl5Matcher;
- import com.brainsoon.bsrcm.common.utils.BaseCommonUtil;
- import com.brainsoon.bsrcm.system.support.CacConver;
- /**
- * 获取视频音频的各项属性帮助类
- * 如果需要修改或者添加属性,只要扩展下面的二维数组和修改下面getVideoInfo()方法
- * @author tanghui
- *
- */
- public class VideoInfoHelps {
- protected static final Logger logger = Logger.getLogger(VideoInfoHelps.class);
- public static final String ffmpegPath; // ffmpeg.exe的目录
- static{
- ffmpegPath = BaseCommonUtil.getProRealPath("ffmpegPath");
- }
- /**
- * 根据属性获取视频信息
- * @param videoPath
- * @return
- */
- public static VideoInfo getVideoInfo(String videoPath) {
- VideoInfo videoInfo = new VideoInfo();
- if(CacConver.exitFile(videoPath)){
- String videoType = videoPath.substring(videoPath.lastIndexOf(".")+1, videoPath.length());
- if(CacConver.isNeedVideoFormat(videoType)){
- String result = processVideo(videoPath);
- if(StringUtils.isNotEmpty(result)){
- PatternCompiler compiler =new Perl5Compiler();
- try {
- String regexDuration ="Duration: (.*?), start: (.*?), bitrate: (\\d*) kb\\/s";
- String regexVideo ="Video: (.*?), (.*?), (.*?)[,\\s]";
- String regexAudio ="Audio: (\\w*), (\\d*) Hz";
- Pattern patternDuration = compiler.compile(regexDuration,Perl5Compiler.CASE_INSENSITIVE_MASK);
- PatternMatcher matcherDuration = new Perl5Matcher();
- if(matcherDuration.contains(result, patternDuration)){
- MatchResult re = matcherDuration.getMatch();
- videoInfo.setPlayingAllTime( re.group(1));
- videoInfo.setPlayingStartTime( re.group(2));
- videoInfo.setBitrateSize( re.group(3));
- }
- Pattern patternVideo = compiler.compile(regexVideo,Perl5Compiler.CASE_INSENSITIVE_MASK);
- PatternMatcher matcherVideo = new Perl5Matcher();
- if(matcherVideo.contains(result, patternVideo)){
- MatchResult re = matcherVideo.getMatch();
- videoInfo.setCodeFormat( re.group(1));
- videoInfo.setVideoFormat( re.group(2));
- videoInfo.setResolution( re.group(3));
- }
- Pattern patternAudio = compiler.compile(regexAudio,Perl5Compiler.CASE_INSENSITIVE_MASK);
- PatternMatcher matcherAudio = new Perl5Matcher();
- if(matcherAudio.contains(result, patternAudio)){
- MatchResult re = matcherAudio.getMatch();
- videoInfo.setAudioCoding(re.group(1));
- videoInfo.setAudioFrequency( re.group(2));
- }
- } catch (MalformedPatternException e) {
- logger.error("获取【" + videoPath +"】视频信息失败!");
- }
- logger.info("获取【" + videoPath +"】视频信息成功!");
- }else{
- logger.info("执行成功!但未获取到【" + videoPath +"】视频信息!");
- }
- }else{
- logger.debug("【" + videoPath + "】文件格式不支持!");
- }
- }
- return videoInfo ;
- }
- /**
- * ffmpeg能解析的格式:(asx,asf,mpg,wmv,3gp,mp4,mov,avi,flv等)
- * @param inputPath
- * @return
- */
- private static String processVideo(String filePath) {
- List<String> commend=new java.util.ArrayList<String>();
- commend.add(ffmpegPath);//可以设置环境变量从而省去这行
- commend.add("-i");
- commend.add(filePath);
- try {
- ProcessBuilder builder = new ProcessBuilder();
- builder.command(commend);
- builder.redirectErrorStream(true);
- Process p= builder.start();
- BufferedReader buf = null; // 保存ffmpeg的输出结果流
- String line = null;
- buf = new BufferedReader(new InputStreamReader(p.getInputStream()));
- StringBuffer sb= new StringBuffer();
- while ((line = buf.readLine()) != null) {
- sb.append(line);
- continue;
- }
- p.waitFor();//这里线程阻塞,将等待外部转换进程运行成功运行结束后,才往下执行
- return sb.toString();
- } catch (Exception e) {
- logger.error("ffmpeg解析视频文件【" + filePath +"】失败!");
- return null;
- }
- }
- }
3.其他的工具类
- /**
- * 等待进程处理
- * @param p
- * @return
- */
- @SuppressWarnings("unused")
- public static int doWaitFor(Process p) {
- InputStream in = null;
- InputStream err = null;
- int exitValue = -1; // returned to caller when p is finished
- try {
- in = p.getInputStream();
- err = p.getErrorStream();
- boolean finished = false; // Set to true when p is finished
- while (!finished) {
- try {
- while (in.available() > 0) {
- Character c = new Character((char) in.read());
- }
- while (err.available() > 0) {
- Character c = new Character((char) err.read());
- }
- exitValue = p.exitValue();
- finished = true;
- } catch (IllegalThreadStateException e) {
- Thread.currentThread();
- Thread.sleep(500);
- }
- }
- } catch (Exception e) {
- logger.error("doWaitFor();: unexpected exception - "
- + e.getMessage());
- } finally {
- try {
- if (in != null) {
- in.close();
- }
- } catch (IOException e) {
- logger.error("等待进程处理错误");
- }
- if (err != null) {
- try {
- err.close();
- } catch (IOException e) {
- logger.error("等待进程处理错误");
- }
- }
- }
- return exitValue;
- }
- /**
- * 删除文件
- * @param filepath
- */
- public static void deleteFile(String filepath) {
- File file = new File(filepath);
- if (file.exists()) {
- if (file.delete()) {
- logger.info("文件【" + filepath + "】已删除");
- }
- }
- }
- /**
- * 根据时间返回总秒数 形如:(00:12:12)
- * @param timeStr
- * @return
- */
- public static String getSplitStr(String timeStr){
- String secStr="0";//返回秒
- if(timeStr != null && !timeStr.equals("") ){
- String[] str = timeStr.split(":");
- int subInt0 = Integer.parseInt(str[0]);
- int subInt1 = Integer.parseInt(str[1]);
- String str2s = "";
- if(str[2].length() >2&&str[2].indexOf(".")>0){
- str2s = str[2].substring(0,str[2].indexOf("."));
- }else{
- str2s = str[2];
- }
- int subInt2 = Integer.parseInt(str2s);
- Long countNum = subInt0 * 3600L + subInt1 * 60 + subInt2;
- secStr = countNum + "";
- }
- return secStr;
- }
- /**
- * 计算两个字符串时间相减 如:("00:22:22")
- *
- * @param time1
- * @param time2
- * @return
- */
- public static String calTime(String time1, String time2){
- Long time1Long = Long.parseLong(time1);
- Long time2Long = Long.parseLong(time2);
- Long timeLong = time2Long-time1Long;
- StringBuffer sbuffer = null;
- if(timeLong > 0){
- int hour = (int) (timeLong/3600);
- int minute = (int) ((timeLong-hour*3600)/60);
- int second =(int) ((timeLong-hour*3600-minute*60)%60);
- sbuffer = new StringBuffer();
- if(hour<10){
- sbuffer.append("0");
- }
- sbuffer.append(Integer.toString(hour));
- sbuffer.append(":");
- if(minute<10){
- sbuffer.append("0");
- }
- sbuffer.append(Integer.toString(minute));
- sbuffer.append(":");
- if(second<10){
- sbuffer.append("0");
- }
- sbuffer.append(Integer.toString(second));
- return sbuffer.toString();
- }else{
- logger.error("时间不能为负数!可能原因是传入的时间位置不对!");
- return "";
- }
- }