图片和视频压缩例子

/*** 视频压缩 需要jave jar 包。到网上下载即可  * * @param source 需要压缩的视频* @param targetPath 压缩的目标路径* @return*/public static boolean compressVideo(File source, String targetPath) {System.out.println("source:" + source);System.out.println("targetPath:" + targetPath);try {// 编码器Encoder encoder = new Encoder();// 源视频的信息MultimediaInfo mInfo = encoder.getInfo(source);AudioInfo audioInfo = mInfo.getAudio();VideoInfo videoInfo = mInfo.getVideo();// 音频参数设置(一些参数都是使用源视频)AudioAttributes audio = new AudioAttributes();audio.setBitRate(44100);audio.setChannels(audioInfo.getChannels());audio.setSamplingRate(audioInfo.getSamplingRate());audio.setCodec("libmp3lame");audio.setVolume(256);// 256表示原声，小于表示减少音量 大于表示增加音量// 视频参数设置(一些参数都是使用源视频)VideoAttributes video = new VideoAttributes();video.setCodec("mpeg4");video.setBitRate(videoInfo.getBitRate());
//            VideoSize size = new VideoSize(720, 960);
//            video.setSize(size);video.setFrameRate(30);// 视频转码编码设置EncodingAttributes attrs = new EncodingAttributes();attrs.setFormat("mp4");attrs.setAudioAttributes(audio);attrs.setVideoAttributes(video);System.out.println("audioInfo:" + audioInfo);System.out.println("videoInfo:" + videoInfo);System.out.println("mInfo" + mInfo);File target = new File(targetPath);String decoderstr = videoInfo.getDecoder();System.out.println("decoderstr:" + decoderstr);String[] decoder = encoder.getSupportedDecodingFormats();List<String> list = new ArrayList<String>();for (int i = 0; i < decoder.length; i++) {list.add(decoder[i]);}// 如果视频解码方式存在就编码。不然就不用// 。。查看解码格式类型：http://www.sauronsoftware.it/projects/jave/manual.php#3.1if (list.contains(decoderstr)) {encoder.encode(source, target, attrs);logger.info("压缩完成...");} else {logger.info("不支持该编码的视频，编码为：{};提示：压缩失败", decoderstr);}} catch (EncoderException e) {logger.info("视频压缩出现异常");e.printStackTrace();}return false;}/*** 图片压缩* * @param source* @param target*/public static void compressPicture(File source, String targetPath) {try {System.out.println("文件：" + source + "临时文件路径：" + targetPath);System.out.println("begin compress picture。。。。");FileOutputStream fos = new FileOutputStream(targetPath);BufferedImage bi = ImageIO.read(source);int srcWidth = bi.getWidth();int srcHeight = bi.getHeight();Image image = bi.getScaledInstance(srcWidth, srcHeight, Image.SCALE_SMOOTH);BufferedImage tag = new BufferedImage(srcWidth, srcHeight, BufferedImage.TYPE_INT_RGB);Graphics g = tag.getGraphics();g.setColor(Color.RED);g.drawImage(image, 0, 0, null);g.dispose();ImageIO.write(tag, "jpg", fos);System.out.println("end compress picture。。。。");} catch (IOException e) {e.printStackTrace();}}
}