Method buildDoubaoVideoContent

ai/ai.ts:3223–3260

(
    prompt: string,
    images: AIContentPart[],
    imageMode: VideoImageMode,
  )

  private buildDoubaoVideoContent(
    prompt: string,
    images: AIContentPart[],
    imageMode: VideoImageMode,
  ): Array<Record<string, any>> {
    const content: Array<Record<string, any>> = [];
    const trimmedPrompt = prompt.trim();
    if (trimmedPrompt) {
      content.push({ type: "text", text: trimmedPrompt });
    }

    const imageParts = images.filter(
      (part) => part.type === "image_url" && !!parseDataUrl(part.image_url.url),
    );
    const imageCount = imageParts.length;

    for (const [index, part] of imageParts.entries()) {
      if (part.type !== "image_url") continue;
      const item: Record<string, any> = {
        type: "image_url",
        image_url: { url: part.image_url.url },
      };
      if (imageMode === "first") {
        item.role = "first_frame";
      } else if (imageMode === "firstlast") {
        item.role = index === 0 ? "first_frame" : "last_frame";
      } else if (imageMode === "reference") {
        item.role = "reference_image";
      } else if (imageCount === 2) {
        item.role = index === 0 ? "first_frame" : "last_frame";
      } else if (imageCount > 2) {
        item.role = "reference_image";
      }
      content.push(item);
    }

    return content;
  }

  private async generateGeminiImageRest(
    providerConfig: ProviderConfig,
    model: string,