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# Video Generation
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Generate videos from text prompts or images using Veo models.
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## Core Imports
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```java
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import com.google.genai.types.GenerateVideosOperation;
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import com.google.genai.types.GenerateVideosConfig;
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import com.google.genai.types.GenerateVideosSource;
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import com.google.genai.types.GeneratedVideo;
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import com.google.genai.types.Video;
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import com.google.genai.types.Image;
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```
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## Generate Videos
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```java { .api }
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public GenerateVideosOperation generateVideos(
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    String model,
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    GenerateVideosSource source,
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    GenerateVideosConfig config);
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public GenerateVideosOperation generateVideos(
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    String model,
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    String prompt,
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    Image image,
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    Video video,
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    GenerateVideosConfig config);
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```
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## Text to Video
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```java
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GenerateVideosConfig config = GenerateVideosConfig.builder()
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    .numberOfVideos(1)
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    .durationSeconds(5)
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    .enhancePrompt(true)
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    .build();
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GenerateVideosOperation operation = client.models.generateVideos(
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    "veo-2.0-generate-001",
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    "A cat walking through a futuristic city",
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    null,
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    config
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);
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// Poll until complete
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while (!operation.done().isPresent()) {
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    Thread.sleep(10000);
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    operation = client.operations.getVideosOperation(operation, null);
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}
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operation.response().ifPresent(response -> {
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    response.generatedVideos().ifPresent(videos -> {
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        for (GeneratedVideo video : videos) {
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            System.out.println("Video: " + video.video().orElse(null));
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        }
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    });
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});
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```
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## Image to Video
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```java
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Image image = Image.fromFile("path/to/image.jpg");
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GenerateVideosConfig config = GenerateVideosConfig.builder()
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    .numberOfVideos(1)
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    .durationSeconds(5)
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    .build();
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GenerateVideosOperation operation = client.models.generateVideos(
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    "veo-2.0-generate-001",
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    "Animate this image with gentle camera movement",
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    image,
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    config
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);
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```
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## Download Generated Video
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```java
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operation.response().ifPresent(response -> {
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    response.generatedVideos().ifPresent(videos -> {
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        GeneratedVideo video = videos.get(0);
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        client.files.download(
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            video,
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            "path/to/output.mp4",
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            null
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        );
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    });
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});
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```
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## Video Configuration
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```java { .api }
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public final class GenerateVideosConfig {
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  public static Builder builder();
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  public Optional<Integer> numberOfVideos();
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  public Optional<Integer> durationSeconds();
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  public Optional<Boolean> enhancePrompt();
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  public Optional<String> aspectRatio();
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  public Optional<HttpOptions> httpOptions();
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}
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```
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