//————maven配置文件—————
org.bytedeco
javacv
0.8
/*
* 获取指定视频的帧并保存为图片至指定目录
* @param videofile 源视频文件路径
* @param framefile 截取帧的图片存放路径
* @throws Exception
/
public static void fetchFrame(String videofile, String framefile)
throws Exception {
long start = System.currentTimeMillis();
File targetFile = new File(framefile);
FFmpegFrameGrabber ff = new FFmpegFrameGrabber(videofile);
ff.start();
int lenght = ff.getLengthInFrames();
int i = 0;
Frame f = null;
while (i < lenght) {
// 过滤前5帧，避免出现全黑的图片，依自己情况而定
f = ff.grabFrame();
if ((i > 5) && (f.image != null)) {
break;
}
i++;
}
IplImage img = f.image;
int owidth = img.width();
int oheight = img.height();
// 对截取的帧进行等比例缩放
int width = 800;
int height = (int) (((double) width / owidth) * oheight);
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
bi.getGraphics().drawImage(f.image.getBufferedImage().getScaledInstance(width, height, Image.SCALE_SMOOTH),
0, 0, null);
ImageIO.write(bi, “jpg”, targetFile);
// ff.flush();
ff.stop();
System.out.println(System.currentTimeMillis() – start);
}
public static void main(String[] args) {
try {
ImageUtil.fetchFrame(“https://jsjoke.net/upload-1529285839603-touristappid.o6zAJswEDExvrLeuQTdnRSIz87Vo.f0fd65c07d78b8fc831c97888e4d7a55.mp4”, “D:/test4.jpg”);
} catch (Exception e) {
e.printStackTrace();
}
}
Original: https://www.cnblogs.com/kongxc/p/9361923.html
Author: baby孔祥超
Title: java获取视频的第一帧
原创文章受到原创版权保护。转载请注明出处：https://www.johngo689.com/538153/
转载文章受原作者版权保护。转载请注明原作者出处！