java 实现视频转换通用工具类：获取视频元数据信息（一）
java 实现视频转换通用工具类：视频相互转换-Ffmpeg（三）
java 实现视频转换通用工具类：视频截图-Ffmpeg（四）
说明：
视频加水印支持右上角、左上角、左下角、右下角、底部居中几个方位
1.根据水印文字—添加视频水印
/**
* 根据水印文字---添加视频水印
* @param srcPath 原视频路径
* @param tarVideoPath 生成后的视频路径
* @param wmPosition 水印位子
* @param alpha 透明度
* @param txt String 文字
* @param fontSize 每个字的宽度和高度是一样的
* @param fontColor Color 字体颜色
* @param isBold 字体是否加粗
* @param fontType 字体样式
* @param fontPath 字体文件
* @return
*/
public static boolean processFfmpegWatermkByFont(String srcPath,String tarVideoPath,int wmPosition, float alpha,String txt, int fontSize,Color fontColor,boolean isBold,String fontType,String fontPath) {
//通过文字生成的图片临时路径
String waterMarkPath = WebAppUtils.getWebAppRoot() +BaseCommonUtil.TXTIMGPATH + BaseCommonUtil.getDateNum() + ".png";
//waterMarkPath = "D:/project/BSRCM_TRUNK/WebRoot/swf/txtImg/1.png";
//通过文字生成透明图片
ImageHelps.createJpgByFont(txt,fontSize,fontColor,isBold,fontType,fontPath,waterMarkPath);
//avs ---通过水印图片添加水印视频
//return processFfmpegWatermarkByImage(srcPath,tarVideoPath,waterMarkPath,wmPosition,alpha);
//vfilters ---通过水印图片添加水印视频
boolean boo = processFfmpegWatermarkByImg(srcPath,tarVideoPath,waterMarkPath,wmPosition,alpha);
if(boo){
logger.info("【" + srcPath +"】 视频添加文字水印图片成功! ");
return true;
}else{
logger.error("【" + srcPath +"】 processFfmpegWatermkByFont 视频添加文字水印图片失败! ");
return false;
}
}2.根据水印图片—添加视频水印
/**
*根据水印图片---添加视频水印
* @param srcPath 原视频路径
* @param tarVideoPath 生成后的视频路径
* @param waterMarkPath 水印图片路径
* @param wmPosition 水印位子
* @param alpha 透明度
* @return
*/
public static boolean processFfmpegWatermarkByImg(String srcPath,String tarVideoPath,String waterMarkPath,int wmPosition, float alpha) {
if (!checkfile(srcPath)) {
logger.error("【" + srcPath + "】 不存在 !");
return false;
}
if (!checkfile(waterMarkPath)) {
logger.error("【" + waterMarkPath + "】 不存在 !");
return false;
}
//如果父目录不存在就创建一个
tarVideoPath = BaseCommonUtil.replaceFliePathStr(tarVideoPath);
BaseCommonUtil.mkdir(tarVideoPath);
//缩放图片
zooImage(srcPath, waterMarkPath);
//要执行的shell脚本路径
String shellPath = WebappConfigUtil.getParameter("shellPath");
if (!checkfile(shellPath)) {
logger.error("【" + shellPath + "】shell脚本路径 不存在 !");
}
String extendTarName = tarVideoPath.substring(tarVideoPath.lastIndexOf(".")+1,tarVideoPath.length());
Process process = null;
try {
String os = System.getProperty("os.name");
if (os != null && os.toLowerCase().startsWith("windows")) {
String picPath = waterMarkPath.substring(waterMarkPath.indexOf("WebRoot"),waterMarkPath.lastIndexOf("/"));
waterMarkPath = waterMarkPath.substring(waterMarkPath.lastIndexOf("/")+1,waterMarkPath.length());
process = Runtime.getRuntime().exec(shellPath +" "+picPath+" " + ffmpegPath + " " + srcPath + " " + waterMarkPath + " " + getVideoPosition(wmPosition) + " " + tarVideoPath);
} else{
process = Runtime.getRuntime().exec(shellPath + " " + ffmpegPath + " " + srcPath + " " + waterMarkPath + " " + getVideoPosition(wmPosition) + " " + tarVideoPath);
}
doWaitFor(process);
//转换mate信息
if("MP4".equals(extendTarName.toUpperCase())){
return execMp4Box(tarVideoPath);
}
if (!checkfile(tarVideoPath)) {
logger.error("【" + srcPath + "】processFfmpegWatermarkByImage 视频添加水印不成功 !");
return false;
}
return true;
} catch (Exception e) {
logger.error("【" + srcPath + "】processFfmpegWatermarkByImage 视频添加水印不成功 !");
return false;
}finally{
if(process != null){
process.destroy();
}
}
} 3.根据方位数字获取值
/**
* 根据方位数字获取值
* @param wmPosition
* Top left corner
* ffmpeg –i inputvideo.avi -vf "movie=watermarklogo.png [watermark]; [in][watermark] overlay=10:10 [out]" outputvideo.flv
* Top right corner
* ffmpeg –i inputvideo.avi -vf "movie=watermarklogo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]" outputvideo.flv
* Bottom left corner
* ffmpeg –i inputvideo.avi -vf "movie=watermarklogo.png [watermark]; [in][watermark] overlay=10:main_h-overlay_h-10 [out]" outputvideo.flv
* Bottom right corner
* ffmpeg –i inputvideo.avi -vf "movie=watermarklogo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]" outputvideo.flv
* @return
*/
public static String getVideoPosition(int wmPosition){
String positionStr = "main_w-overlay_w-10:main_h-overlay_h-10"; //默认右上角
switch (wmPosition) {
case 0:
positionStr ="10:10"; //左上角
break;
case 1:
positionStr ="main_w-overlay_w-10:10"; //右上角
break;
case 2:
positionStr ="10:main_h-overlay_h-10"; //左下角
break;
case 3:
positionStr ="main_w-overlay_w-10:main_h-overlay_h-10"; //右下角
break;
case 4:
positionStr ="(main_w-overlay_w)/2:main_h-overlay_h:1"; //底部居中
break;
default:
break;
}
return positionStr;
}4.缩放图片
/**
* 缩放图片
* @param srcPath 视频路径
* @param wmImgPath 水印图片路径
* @return
*/
public static void zooImage(String srcPath,String wmImgPath){
//获取视频信息
VideoInfo videoInfo = VideoInfoHelps.getVideoInfo(srcPath);
int width = 0; //视频宽
int height = 0; //视频高
if(videoInfo != null){
String widthStr = videoInfo.getWidth(); //宽
if(StringUtils.isNotEmpty(widthStr)) width = Integer.parseInt(widthStr);
String heightStr = videoInfo.getHeight(); //高
if(StringUtils.isNotEmpty(heightStr)) height = Integer.parseInt(heightStr);
}
if(width !=0 || height !=0){ //如果获取到视频宽高
//进行图片缩放
ImageHelps.zoomPerImg(wmImgPath, wmImgPath,width,height);
}
}
5.获取x，y坐标值，返回String数组
/**
* 获取x，y坐标值，返回String数组
* @param wmPosition
* 0:左上角
* 1:右上角
* 2:左下角
* 3:右下角
* 4:居中
* @param srcPath 视频路径
* @param wmImgPath 水印图片路径
* @return
*/
public static int[] getXy(int wmPosition,String srcPath,String wmImgPath){
int x=10,y=10; //定义默认为左上角
int[] xy = new int[2];
//获取视频信息
VideoInfo videoInfo = VideoInfoHelps.getVideoInfo(srcPath);
int width = 0; //视频宽
int height = 0; //视频高
if(videoInfo != null){
String widthStr = videoInfo.getWidth(); //宽
if(StringUtils.isNotEmpty(widthStr)) width = Integer.parseInt(widthStr);
String heightStr = videoInfo.getHeight(); //高
if(StringUtils.isNotEmpty(heightStr)) height = Integer.parseInt(heightStr);
}
if(width !=0 || height !=0){ //如果获取到视频宽高
//取得坐标方位编码
int position =BaseCommonUtil.getWmDegree(wmPosition);
int wideth_biao =0; //水印图片的宽
int height_biao = 0; //水印图片的高
try {
//首先进行图片缩放
ImageHelps.zoomPerImg(wmImgPath, wmImgPath,width,height);
//水印文件
Image src_biao = ImageIO.read(new File(wmImgPath));
wideth_biao = src_biao.getWidth(null);
height_biao = src_biao.getHeight(null);
} catch (IOException e) {
logger.error("【" + wmImgPath + "】getXy 读取水印图片失败 !");
}
//左上角距离边距10像素
int leftUpWideth = 10;
int leftUpHeight = 10;
//右上角距离边距10像素
int rightUpWideth = (width - wideth_biao) - 10;
int rightUpHeight = 10;
//左下角距离边距10像素
int leftDownWideth = 10;
int leftDownHeight = (height - height_biao) - 10;
//右下角距离边距10像素
int rightDownWideth = (width - wideth_biao) - 10;
int rightDownHeight = (height - height_biao) - 10;
//居中
int centerWideth = (width - wideth_biao) / 2;
int centerHeight = (height - height_biao) / 2;
switch (position) {
case 0:
x = leftUpWideth;
y = leftUpHeight;
break;
case 1:
x = rightUpWideth;
y = rightUpHeight;
break;
case 2:
x = leftDownWideth;
y = leftDownHeight;
break;
case 3:
x = rightDownWideth;
y = rightDownHeight;
break;
case 4:
x = centerWideth;
y = centerHeight;
break;
default:
break;
}
}
//设值
xy[0] =x;
xy[1] =y;
return xy;
}
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