在字符画的基础上增加了播放功能
思路很简单，javacv抽帧，逐帧生成对应字符画后保存，生成完通过swing播放。
视频样例：https://www.bilibili.com/video/av64526993/
开源地址：https://gitee.com/mofanyunxiang/zifuhua_M
Flash.java
代码语言：javascript复制package video;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.Serializable;
import java.lang.reflect.Array;
import java.util.Arrays;
public class Flash implements Serializable {
transient BufferedImage image;
String asciiImage;
public Flash(BufferedImage image)
{
this.image=image;
this.asciiImage=createAsciiPic(image);
}
public static String createAsciiPic(BufferedImage image) {
image=compressImage(image);
final String base = "@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_ ~<>i!lI;:,"^`'. ";// 字符串由复杂到简单
String ans = "";
int sl=0;
for (int y = 0; y < image.getHeight(); y =2) {
for (int x = 0; x < image.getWidth(); x ) {
final int pixel = image.getRGB(x, y);
final int r = (pixel & 0xff0000) >> 16, g = (pixel & 0xff00) >> 8, b = pixel & 0xff;
final float gray = 0.299f * r 0.578f * g 0.114f * b;
int index = (int)(gray * (base.length() 1) / 256);
ans = index >= base.length() ? " " : String.valueOf(base.charAt(index));
}
ans = "n";
}
return ans;
}
public static BufferedImage compressImage(BufferedImage srcImg){
int h = srcImg.getHeight();
int w = srcImg.getWidth();
int size=400;
if(Math.max(h,w)<=size)
return srcImg;
int new_H;
int new_W;
if(w>h){
new_W = size;
new_H = size*h/w ;
}else{
new_H = size;
new_W = size*w/h;
}
BufferedImage smallImg = new BufferedImage(new_W,new_H,srcImg.getType());
Graphics g = smallImg.getGraphics();
g.drawImage(srcImg,0,0,new_W,new_H,null);
g.dispose();
return smallImg;
}
}MyFrame.java
代码语言：javascript复制package video;
import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.Date;
import java.util.List;
import javafx.scene.media.AudioClip;
public class MyFrame extends JFrame implements Runnable {
// 取得屏幕的宽度
int pwidth = Toolkit.getDefaultToolkit().getScreenSize().width;
// 取得屏幕的高度
int pheight = Toolkit.getDefaultToolkit().getScreenSize().height;
int height;
int width;
Video video;
Thread t = new Thread(this);
long st;
int zs;
AudioClip ac;
public MyFrame(Video video,AudioClip ac,String filepath) {
zs=0;
this.video = video;
width=1700;
height=1000;
this.setTitle("洛天依是我老婆~");
// 设置窗体大小
this.setSize(width, height);
// 设置窗体出现位置
this.setLocation((pwidth - width) / 2, (pheight - height) / 2);
// 将窗体设置为大小不可改变
this.setResizable(false);
// 将窗体的关闭方式设置为默认关闭后程序结束
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setBackground(Color.BLACK);
this.setVisible(true);
this.ac=ac;
st=0;
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
t.start();
// 刷新屏幕,防止开始游戏时出现无法显示的情况.
this.repaint();
}
/***
* 使用了双缓冲技术防止屏幕闪烁
* @param g
*/
public void paint(Graphics g) {
if(st<=0)
{
if(ac!=null)ac.play();
st=new Date().getTime();
}
zs=(int)((new Date().getTime()-st)*video.rate/1000);
if(zs>=video.ftp-5)return;
String str=video.flashs.get(zs).asciiImage;
BufferedImage bi = new BufferedImage(width, height,
BufferedImage.TYPE_INT_RGB);
Graphics g2 = bi.createGraphics();
g2.setColor(Color.BLACK);
g2.fillRect(0, 0, width, width);
g2.setColor(Color.WHITE);
int wsize= (width-60)/video.wsize 4;
g2.setFont(new Font("宋体", Font.BOLD,wsize));
String[] strs=str.split("n");
int i=0;
for(String lstr:strs)
{
g2.drawString(lstr,40,90 i*wsize);
i ;
}
g.drawImage(bi, 0, 0, this);
}
public void run() {
// TODO Auto-generated method stub
while (true) {
this.repaint();
try {
Thread.sleep(30);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}Video.java
代码语言：javascript复制package video;
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.Java2DFrameConverter;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javafx.scene.media.AudioClip;
public class Video implements Serializable {
private static final long serialVersionUID= 3960073332674427191l;
double duration;
double rate;
int ftp;
int finterval;
int height;
int width;
int wsize;
File videoFile;
List<Flash> flashs;
String fileSavePath="D:/save/";
int flag;
public Video(File file)
{
videoFile=file;
flashs=new ArrayList<Flash>();
flag=0;
init(file.getPath());
}
public Video(String filepath)
{
try {
ObjectInputStream ois=new ObjectInputStream(new FileInputStream(filepath));
Video video=(Video) ois.readObject();
this.duration=video.duration;
this.rate=video.rate;
this.ftp=video.ftp;
this.finterval=video.finterval;
this.height=video.height;
this.width=video.width;
this.wsize=video.wsize;
this.videoFile=video.videoFile;
this.flashs=video.flashs;
this.flag=video.flag;
if(flag<ftp)init(filepath);
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
public void save(String filepath)
{
try {
ObjectOutputStream oos=new ObjectOutputStream(new FileOutputStream(filepath new Date().getTime() ".video"));
oos.writeObject(this);
oos.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void init(String filepath)
{
Frame frame = null;
FFmpegFrameGrabber fFmpegFrameGrabber = new FFmpegFrameGrabber(videoFile);
try {
fFmpegFrameGrabber.start();
ftp = fFmpegFrameGrabber.getLengthInFrames();
rate=fFmpegFrameGrabber.getFrameRate();
duration=ftp / rate;
finterval=(int)(1000 /rate 0.5);
System.out.println("时长 " ftp / rate / 60);
System.out.println("开始运行视频提取帧，耗时较长");
frame = fFmpegFrameGrabber.grabImage();
height=FrameToBufferedImage(frame).getHeight();
width=FrameToBufferedImage(frame).getWidth();
wsize=Flash.compressImage(FrameToBufferedImage(frame)).getWidth();
//ftp=40;
while (flag < ftp) {
//获取帧
frame = fFmpegFrameGrabber.grabImage();
if(flag<flashs.size())continue;
if(flag/1000<(flag 1)/1000)this.save(filepath);
// System.out.println(frame);
if (frame != null) {
flashs.add(new Flash(FrameToBufferedImage(frame)));
flag ;
}
else
{
ftp--;
}
System.out.println(flag "/" ftp);
System.gc();
}
System.out.println("============运行结束============");
fFmpegFrameGrabber.stop();
this.save(filepath);
} catch (IOException E) {
E.printStackTrace();
}
}
public static BufferedImage FrameToBufferedImage(Frame frame) {
//创建BufferedImage对象
Java2DFrameConverter converter = new Java2DFrameConverter();
BufferedImage bufferedImage = converter.getBufferedImage(frame);
return bufferedImage;
}
}Main.java
代码语言：javascript复制import javafx.scene.media.AudioClip;
import video.MyFrame;
import video.Video;
import java.io.File;
public class Main {
public static void main(String[] args) {
String filepath;
/**
* 输入生成的video文件的路径或者个视频的路径
* video是已完成渲染的视频，可立即启动
* 其它视频需生成video文件后可启动
*/
filepath = "C:\Users\15433\Desktop\a.video";
Video video;
if (filepath.substring(filepath.lastIndexOf(".") 1).equals("video")) {
video = new Video(filepath);
} else {
video = new Video(new File(filepath));
video.save(filepath.substring(0, filepath.lastIndexOf(".")));
}
new MyFrame(video,
new AudioClip(new File("C:\Users\15433\Desktop\a.mp3").toURI().toString())//该路径是播放音乐时的背景音乐的路径
, filepath.substring(0, filepath.lastIndexOf("\") 1));
}
}
//C:Users15433Desktopa.mp4
