Convert PowerPoint to Video

By converting your PowerPoint presentation to video, you get

Increase in accessibility: All devices (regardless of platform) are equipped with video players by default compared to presentation-opening applications, so users find it easier to open or play videos.
More reach: Through videos, you can reach a large audience and target them with information that might otherwise seem tedious in a presentation. Most surveys and statistics suggest that people watch and consume videos more than other forms of content, and they generally prefer such content.

You may want to check our PowerPoint to Video Online Converter because it is a live and effective implementation of the process described here.

PowerPoint to Video Conversion in Aspose.Slides

In Aspose.Slides 22.11, we implemented support for presentation to video conversion.

Use Aspose.Slides to generate a set of frames (from the presentation slides) that correspond to a certain FPS (frames per second)
Use a third-party utility like ffmpeg (for java) to create a video based on the frames.

Convert PowerPoint to Video

Download ffmpeg here.
Run the PowerPoint to video JavaScript code.

This JavaScript code shows you how to convert a presentation (containing a figure and two animation effects) to a video:

var presentation = new aspose.slides.Presentation();
try {
    // Adds a smile shape and then animates it
    var smile = presentation.getSlides().get_Item(0).getShapes().addAutoShape(aspose.slides.ShapeType.SmileyFace, 110, 20, 500, 500);
    var mainSequence = presentation.getSlides().get_Item(0).getTimeline().getMainSequence();
    var effectIn = mainSequence.addEffect(smile, aspose.slides.EffectType.Fly, aspose.slides.EffectSubtype.TopLeft, aspose.slides.EffectTriggerType.AfterPrevious);
    var effectOut = mainSequence.addEffect(smile, aspose.slides.EffectType.Fly, aspose.slides.EffectSubtype.BottomRight, aspose.slides.EffectTriggerType.AfterPrevious);
    effectIn.getTiming().setDuration(2.0);
    effectOut.setPresetClassType(aspose.slides.EffectPresetClassType.Exit);
    final var fps = 33;
    var frames = java.newInstanceSync("java.util.ArrayList");
    var animationsGenerator = new aspose.slides.PresentationAnimationsGenerator(presentation);
    try {
        var player = new aspose.slides.PresentationPlayer(animationsGenerator, fps);
        try {
            player.setFrameTick((sender, arguments) -> {
                try {
                    var frame = java.callStaticMethodSync("java.lang.String", "format", "frame_%04d.png", sender.getFrameIndex());
                    arguments.getFrame().save(frame, aspose.slides.ImageFormat.Png);
                    frames.add(frame);
                } catch (e) {console.log(e);
                    throw java.newInstanceSync("java.lang.RuntimeException", e);
                }
            });
            animationsGenerator.run(presentation.getSlides());
        } finally {
            if (player != null) {
                player.dispose();
            }
        }
    } finally {
        if (animationsGenerator != null) {
            animationsGenerator.dispose();
        }
    }
    // Configure ffmpeg binaries folder. See this page: https://github.com/rosenbjerg/FFMpegCore#installation
    var ffmpeg = java.newInstanceSync("FFmpeg", "path/to/ffmpeg");
    var ffprobe = java.newInstanceSync("FFprobe", "path/to/ffprobe");
    var builder = java.newInstanceSync("FFmpegBuilder").addExtraArgs("-start_number", "1").setInput("frame_%04d.png").addOutput("output.avi").setVideoFrameRate(java.getStaticFieldValue("FFmpeg", "FPS_24")).setFormat("avi").done();
    var executor = java.newInstanceSync("FFmpegExecutor", ffmpeg, ffprobe);
    executor.createJob(builder).run();
} catch (e) {console.log(e);
    console.log(e);
}

Video Effects

You can apply animations to objects on slides and use transitions between slides.

You may want to see these articles: PowerPoint Animation, Shape Animation, and Shape Effect.

Animations and transitions make slideshows more engaging and interesting—and they do the same thing for videos. Let’s add another slide and transition to the code for the previous presentation:

// Adds a smile shape and animates it
// ...
// Adds a new slide and animated transition
var newSlide = presentation.getSlides().addEmptySlide(presentation.getSlides().get_Item(0).getLayoutSlide());
newSlide.getBackground().setType(aspose.slides.BackgroundType.OwnBackground);
newSlide.getBackground().getFillFormat().setFillType(java.newByte(aspose.slides.FillType.Solid));
newSlide.getBackground().getFillFormat().getSolidFillColor().setColor(java.getStaticFieldValue("java.awt.Color", "MAGENTA"));
newSlide.getSlideShowTransition().setType(aspose.slides.TransitionType.Push);

Aspose.Slides also supports animation for texts. So we animate paragraphs on objects, which will appear one after the other (with the delay set to a second):

var presentation = new aspose.slides.Presentation();
try {
    // Adds text and animations
    var autoShape = presentation.getSlides().get_Item(0).getShapes().addAutoShape(aspose.slides.ShapeType.Rectangle, 210, 120, 300, 300);
    var para1 = new aspose.slides.Paragraph();
    para1.getPortions().add(new aspose.slides.Portion("Aspose Slides for Node.js via Java"));
    var para2 = new aspose.slides.Paragraph();
    para2.getPortions().add(new aspose.slides.Portion("convert PowerPoint Presentation with text to video"));
    var para3 = new aspose.slides.Paragraph();
    para3.getPortions().add(new aspose.slides.Portion("paragraph by paragraph"));
    var paragraphCollection = autoShape.getTextFrame().getParagraphs();
    paragraphCollection.add(para1);
    paragraphCollection.add(para2);
    paragraphCollection.add(para3);
    paragraphCollection.add(new aspose.slides.Paragraph());
    var mainSequence = presentation.getSlides().get_Item(0).getTimeline().getMainSequence();
    var effect1 = mainSequence.addEffect(para1, aspose.slides.EffectType.Appear, aspose.slides.EffectSubtype.None, aspose.slides.EffectTriggerType.AfterPrevious);
    var effect2 = mainSequence.addEffect(para2, aspose.slides.EffectType.Appear, aspose.slides.EffectSubtype.None, aspose.slides.EffectTriggerType.AfterPrevious);
    var effect3 = mainSequence.addEffect(para3, aspose.slides.EffectType.Appear, aspose.slides.EffectSubtype.None, aspose.slides.EffectTriggerType.AfterPrevious);
    var effect4 = mainSequence.addEffect(para3, aspose.slides.EffectType.Appear, aspose.slides.EffectSubtype.None, aspose.slides.EffectTriggerType.AfterPrevious);
    effect1.getTiming().setTriggerDelayTime(1.0);
    effect2.getTiming().setTriggerDelayTime(1.0);
    effect3.getTiming().setTriggerDelayTime(1.0);
    effect4.getTiming().setTriggerDelayTime(1.0);
    final var fps = 33;
    var frames = java.newInstanceSync("java.util.ArrayList");
    var animationsGenerator = new aspose.slides.PresentationAnimationsGenerator(presentation);
    try {
        var player = new aspose.slides.PresentationPlayer(animationsGenerator, fps);
        try {
            player.setFrameTick((sender, arguments) -> {
                try {
                    var frame = java.callStaticMethodSync("java.lang.String", "format", "frame_%04d.png", sender.getFrameIndex());
                    arguments.getFrame().save(frame, aspose.slides.ImageFormat.Png);
                    frames.add(frame);
                } catch (e) {console.log(e);
                    throw java.newInstanceSync("java.lang.RuntimeException", e);
                }
            });
            animationsGenerator.run(presentation.getSlides());
        } finally {
            if (player != null) {
                player.dispose();
            }
        }
    } finally {
        if (animationsGenerator != null) {
            animationsGenerator.dispose();
        }
    }
    // Configure ffmpeg binaries folder. See this page: https://github.com/rosenbjerg/FFMpegCore#installation
    var ffmpeg = java.newInstanceSync("FFmpeg", "path/to/ffmpeg");
    var ffprobe = java.newInstanceSync("FFprobe", "path/to/ffprobe");
    var builder = java.newInstanceSync("FFmpegBuilder").addExtraArgs("-start_number", "1").setInput("frame_%04d.png").addOutput("output.avi").setVideoFrameRate(java.getStaticFieldValue("FFmpeg", "FPS_24")).setFormat("avi").done();
    var executor = java.newInstanceSync("FFmpegExecutor", ffmpeg, ffprobe);
    executor.createJob(builder).run();
} catch (e) {console.log(e);
    console.log(e);
}

Video Conversion Classes

To allow you to perform PowerPoint to video conversion tasks, Aspose.Slides provides the PresentationAnimationsGenerator and PresentationPlayer classes.

PresentationAnimationsGenerator allows you to set the frame size for the video (that will be created later) through its constructor. If you pass an instance of the presentation, Presentation.getSlideSize will be used and it generates animations that PresentationPlayer uses.

When animations are generated, a NewAnimation event is generated for each subsequent animation, which has the PresentationAnimationPlayer parameter. The latter is a class that represents a player for a separate animation.

To work with PresentationAnimationPlayer, the getDuration (the full duration of the animation) method and setTimePosition method are used. Each animation position is set within the 0 to duration range, and then the getFrame method will return a BufferedImage that corresponds to the animation state at that moment:

var presentation = new aspose.slides.Presentation();
try {
    // Adds a smile shape and animates it
    var smile = presentation.getSlides().get_Item(0).getShapes().addAutoShape(aspose.slides.ShapeType.SmileyFace, 110, 20, 500, 500);
    var mainSequence = presentation.getSlides().get_Item(0).getTimeline().getMainSequence();
    var effectIn = mainSequence.addEffect(smile, aspose.slides.EffectType.Fly, aspose.slides.EffectSubtype.TopLeft, aspose.slides.EffectTriggerType.AfterPrevious);
    var effectOut = mainSequence.addEffect(smile, aspose.slides.EffectType.Fly, aspose.slides.EffectSubtype.BottomRight, aspose.slides.EffectTriggerType.AfterPrevious);
    effectIn.getTiming().setDuration(2.0);
    effectOut.setPresetClassType(aspose.slides.EffectPresetClassType.Exit);
    var animationsGenerator = new aspose.slides.PresentationAnimationsGenerator(presentation);
    try {
        animationsGenerator.setNewAnimation(animationPlayer -> {
            console.log(java.callStaticMethodSync("java.lang.String", "format", "Animation total duration: %f", animationPlayer.getDuration()));
            animationPlayer.setTimePosition(0);// initial animation state
            try {
                // initial animation state bitmap
                animationPlayer.getFrame().save("firstFrame.png", aspose.slides.ImageFormat.Png);
            } catch (e) {console.log(e);
                throw java.newInstanceSync("java.lang.RuntimeException", e);
            }
            animationPlayer.setTimePosition(animationPlayer.getDuration());// final state of the animation
            try {
                // last frame of the animation
                animationPlayer.getFrame().save("lastFrame.png", aspose.slides.ImageFormat.Png);
            } catch (e) {console.log(e);
                throw java.newInstanceSync("java.lang.RuntimeException", e);
            }
        });
    } finally {
        if (animationsGenerator != null) {
            animationsGenerator.dispose();
        }
    }
} finally {
    if (presentation != null) {
        presentation.dispose();
    }
}

To make all animations in a presentation play at once, the PresentationPlayer class is used. This class takes a PresentationAnimationsGenerator instance and FPS for effects in its constructor and then calls the FrameTick event for all the animations to get them played:

var presentation = new aspose.slides.Presentation("animated.pptx");
try {
    var animationsGenerator = new aspose.slides.PresentationAnimationsGenerator(presentation);
    try {
        var player = new aspose.slides.PresentationPlayer(animationsGenerator, 33);
        try {
            player.setFrameTick((sender, arguments) -> {
                try {
                    arguments.getFrame().save(("frame_" + sender.getFrameIndex()) + ".png", aspose.slides.ImageFormat.Png);
                } catch (e) {console.log(e);
                    throw java.newInstanceSync("java.lang.RuntimeException", e);
                }
            });
            animationsGenerator.run(presentation.getSlides());
        } finally {
            if (player != null) {
                player.dispose();
            }
        }
    } finally {
        if (animationsGenerator != null) {
            animationsGenerator.dispose();
        }
    }
} finally {
    if (presentation != null) {
        presentation.dispose();
    }
}

Then the generated frames can be compiled to produce a video. See the Convert PowerPoint to Video section.

Supported Animations and Effects

Entrance:

Animation Type	Aspose.Slides	PowerPoint
Appear
Fade
Fly In
Float In
Split
Wipe
Shape
Wheel
Random Bars
Grow & Turn
Zoom
Swivel
Bounce

Emphasis:

Animation Type	Aspose.Slides	PowerPoint
Pulse
Color Pulse
Teeter
Spin
Grow/Shrink
Desaturate
Darken
Lighten
Transparency
Object Color
Complementary Color
Line Color
Fill Color

Exit:

Animation Type	Aspose.Slides	PowerPoint
Disappear
Fade
Fly Out
Float Out
Split
Wipe
Shape
Random Bars
Shrink & Turn
Zoom
Swivel
Bounce

Motion Paths:

Animation Type	Aspose.Slides	PowerPoint
Lines
Arcs
Turns
Shapes
Loops
Custom Path

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