java 实现视频转换通用工具类：视频相互转换-Ffmpeg(三)

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;

}