java - 如何使用 Apache-POI 为幻灯片中的链接视频创建 pptx 文件

与嵌入式视频案例相比，只需要更改几行。
视频 URI 不是真正的 URI，而只是同一目录中的相对 .mp4 文件名。虽然我没有测试过，但绝对文件 URI 也应该可以工作。

我还没有实现帧提取，正如在嵌入式示例中提到的那样 - 所以要么寻找 xuggler 的存档版本，要么找到一个不同的库来提取预览图像。

使用 Powerpoint 2016 / POI 5.0.0-Snapshot 进行测试。

import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackageRelationship;
import org.apache.poi.openxml4j.opc.TargetMode;
import org.apache.poi.sl.usermodel.PictureData;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFPictureData;
import org.apache.poi.xslf.usermodel.XSLFPictureShape;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import org.apache.xmlbeans.XmlCursor;
import org.openxmlformats.schemas.drawingml.x2006.main.CTHyperlink;
import org.openxmlformats.schemas.presentationml.x2006.main.*;

import javax.xml.namespace.QName;
import java.awt.*;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

import static org.apache.poi.openxml4j.opc.PackageRelationshipTypes.CORE_PROPERTIES_ECMA376_NS;

public class LinkVideoToPptx {
    public static void main(String[] args) throws IOException, URISyntaxException {
        XMLSlideShow pptx = new XMLSlideShow();

        String videoFileName = "file_example_MP4_640_3MG.mp4";
        XSLFSlide slide1 = pptx.createSlide();

        PackagePart pp = slide1.getPackagePart();
        URI mp4uri = new URI("./"+videoFileName);
        PackageRelationship prsEmbed1 = pp.addRelationship(mp4uri, TargetMode.EXTERNAL, "http://schemas.microsoft.com/office/2007/relationships/media");
        PackageRelationship prsExec1 = pp.addRelationship(mp4uri, TargetMode.EXTERNAL, "http://schemas.openxmlformats.org/officeDocument/2006/relationships/video");


        File previewJpg = new File("preview.jpg");
        XSLFPictureData snap = pptx.addPicture(previewJpg, PictureData.PictureType.JPEG);
        XSLFPictureShape pic1 = slide1.createPicture(snap);
        pic1.setAnchor(new Rectangle(100, 100, 500, 400));

        CTPicture xpic1 = (CTPicture)pic1.getXmlObject();
        CTHyperlink link1 = xpic1.getNvPicPr().getCNvPr().addNewHlinkClick();
        link1.setId("");
        link1.setAction("ppaction://media");


        CTApplicationNonVisualDrawingProps nvPr = xpic1.getNvPicPr().getNvPr();
        nvPr.addNewVideoFile().setLink(prsExec1.getId());
        CTExtension ext = nvPr.addNewExtLst().addNewExt();
        ext.setUri("{DAA4B4D4-6D71-4841-9C94-3DE7FCFB9230}");

        String p14Ns = "http://schemas.microsoft.com/office/powerpoint/2010/main";
        XmlCursor cur = ext.newCursor();
        cur.toEndToken();
        cur.beginElement(new QName(p14Ns, "media", "p14"));
        cur.insertNamespace("p14", p14Ns);
        cur.insertAttributeWithValue(new QName(CORE_PROPERTIES_ECMA376_NS, "link"), prsEmbed1.getId());
        cur.dispose();


        CTSlide xslide = slide1.getXmlObject();
        CTTimeNodeList ctnl;
        if (!xslide.isSetTiming()) {
            CTTLCommonTimeNodeData ctn = xslide.addNewTiming().addNewTnLst().addNewPar().addNewCTn();
            ctn.setDur(STTLTimeIndefinite.INDEFINITE);
            ctn.setRestart(STTLTimeNodeRestartType.NEVER);
            ctn.setNodeType(STTLTimeNodeType.TM_ROOT);
            ctnl = ctn.addNewChildTnLst();
        } else {
            ctnl = xslide.getTiming().getTnLst().getParArray(0).getCTn().getChildTnLst();
        }
        CTTLCommonMediaNodeData cmedia = ctnl.addNewVideo().addNewCMediaNode();
        cmedia.setVol(80000);
        CTTLCommonTimeNodeData ctn = cmedia.addNewCTn();
        ctn.setFill(STTLTimeNodeFillType.HOLD);
        ctn.setDisplay(false);
        ctn.addNewStCondLst().addNewCond().setDelay(STTLTimeIndefinite.INDEFINITE);
        cmedia.addNewTgtEl().addNewSpTgt().setSpid(""+pic1.getShapeId());


        try (FileOutputStream fos = new FileOutputStream("mp4test-poi.pptx")) {
            pptx.write(fos);
        }
    }
}

java - 如何使用 Apache-POI 为幻灯片中的链接视频创建 pptx 文件

问题描述

解决方案

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