请帮我用java语言 写PPT转视频的代码 要最新的
时间: 2024-03-28 12:36:53 浏览: 16
最新的PPT转视频的Java代码可以使用Apache POI和Xuggler库。以下是示例代码:
```java
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.List;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import org.apache.poi.xslf.usermodel.XSLFTextShape;
import org.apache.poi.xslf.usermodel.XSLFTextParagraph;
import org.apache.poi.xslf.usermodel.XSLFTextRun;
import com.xuggle.mediatool.IMediaWriter;
import com.xuggle.mediatool.ToolFactory;
import com.xuggle.mediatool.event.IAddStreamEvent;
import com.xuggle.mediatool.event.IVideoPictureEvent;
import com.xuggle.xuggler.ICodec;
import com.xuggle.xuggler.IContainer;
import com.xuggle.xuggler.IPixelFormat;
import com.xuggle.xuggler.IStream;
import com.xuggle.xuggler.IStreamCoder;
import com.xuggle.xuggler.IVideoResampler;
public class PptToVideoConverter {
public static void main(String[] args) throws Exception {
// Specify the input PPT file path
String inputFile = "sample.pptx";
// Specify the output video file path
String outputFile = "output.mp4";
// Load the PPT file into a XMLSlideShow object
FileInputStream inputStream = new FileInputStream(new File(inputFile));
XMLSlideShow ppt = new XMLSlideShow(inputStream);
inputStream.close();
// Create a media writer for the output video
IMediaWriter writer = ToolFactory.makeWriter(outputFile);
// Get the screen dimensions and create a video stream with the same dimensions
Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
int width = (int) screen.getWidth();
int height = (int) screen.getHeight();
writer.addVideoStream(0, 0, ICodec.ID.CODEC_ID_H264, width, height);
// Create a video resampler to convert the images to the same dimensions as the video stream
IStreamCoder videoCoder = writer.getContainer().getStream(0).getStreamCoder();
IVideoResampler resampler = null;
if (videoCoder.getPixelType() != IPixelFormat.Type.YUV420P) {
resampler = IVideoResampler.make(width, height, IPixelFormat.Type.YUV420P, videoCoder.getPixelType(), videoCoder.getWidth(), videoCoder.getHeight());
if (resampler == null) {
throw new RuntimeException("Could not create video resampler!");
}
}
// Loop through each slide in the PPT file
List<XSLFSlide> slides = ppt.getSlides();
for (int i = 0; i < slides.size(); i++) {
XSLFSlide slide = slides.get(i);
// Render the slide as a BufferedImage
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
slide.draw(image.createGraphics());
// Resample the image if necessary
if (resampler != null) {
BufferedImage resampledImage = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
resampler.resample(resampledImage.createGraphics(), image);
image = resampledImage;
}
// Add the image to the video stream
writer.encodeVideo(0, image, System.currentTimeMillis() - 1000 * i);
// Add the slide title to the video as text
String title = slide.getTitle();
if (title != null && !title.isEmpty()) {
XSLFTextShape[] textShapes = slide.getPlaceholders();
for (XSLFTextShape textShape : textShapes) {
if (textShape.getTextType() == XSLFTextShape.TextType.TITLE) {
XSLFTextParagraph[] textParagraphs = textShape.getTextParagraphs();
for (XSLFTextParagraph textParagraph : textParagraphs) {
for (XSLFTextRun textRun : textParagraph.getTextRuns()) {
String text = textRun.getRawText();
if (text != null && !text.isEmpty()) {
writer.addListener(new TextAdder(text, width, height, i));
}
}
}
}
}
}
}
// Cleanup
writer.close();
System.out.println("PPT to video conversion completed successfully!");
}
private static class TextAdder implements com.xuggle.mediatool.event.IAddStreamListener, com.xuggle.mediatool.event.IVideoPictureListener {
private String text;
private int width;
private int height;
private int slideIndex;
private long duration;
public TextAdder(String text, int width, int height, int slideIndex) {
this.text = text;
this.width = width;
this.height = height;
this.slideIndex = slideIndex;
}
@Override
public void onAddStream(IAddStreamEvent event) {
// Add a text stream to the media writer
event.getSource().addVideoStream(event.getStreamIndex(), 0, ICodec.ID.CODEC_ID_H264, width, height);
}
@Override
public void onVideoPicture(IVideoPictureEvent event) {
// Add the text to the video stream
if (event.getStreamIndex() == 1 && event.getTimeStamp() < duration) {
BufferedImage image = event.getImage();
Rectangle rect = new Rectangle(0, 0, width, height);
image.createGraphics().drawString(text, rect.x, rect.y + rect.height / 2);
event.getImage().flush();
}
}
}
}
```
请注意,此代码使用Xuggler库来编码视频和添加文本到视频中。您可以从 https://www.xuggle.com/downloads 下载和安装Xuggler库。