专业 Seedance 2.5 Reference-to-Video API（多模态视频生成）

// Step 1: Submit generation request
const response = await fetch('https://api.flaq.ai/api/v1/video/task', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  body: JSON.stringify({
    model_name: 'seedance-v2.5-reference-to-video',
    prompt: 'Use image one for the subject, video one for the movement, and audio one for the atmosphere',
    resolution: '720p',
    duration: 8,
    aspect_ratio: '16:9',
    sound: true,
    images: ['https://example.com/subject-reference.jpg'],
    videos: ['https://example.com/motion-reference.mp4'],
    audios: ['https://example.com/atmosphere-reference.mp3']
  })
});

const { data } = await response.json();
const taskId = data.task_id;

// Use the @ (AT) reference feature in prompt through <<<...>>> placeholders.
// Placeholder numbering is 1-based for each media array:
// <<<image_1>>> = images[0], <<<image_2>>> = images[1]
// <<<video_1>>> = videos[0], <<<audio_1>>> = audios[0]
const mediaReferenceResponse = await fetch('https://api.flaq.ai/api/v1/video/task', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  body: JSON.stringify({
    model_name: 'seedance-v2.5-reference-to-video',
    prompt: 'Place the explorer from <<<image_1>>> in the environment from <<<image_2>>>, following the camera movement in <<<video_1>>> and speaking with the reference voice from <<<audio_1>>>',
    resolution: '720p',
    duration: 10,
    aspect_ratio: '16:9',
    sound: true,
    images: [
      'https://example.com/explorer-reference.jpg',
      'https://example.com/environment-reference.png'
    ],
    videos: ['https://example.com/camera-movement-reference.mp4'],
    audios: ['https://example.com/voice-reference.mp3']
  })
});

const { data: mediaReferenceData } = await mediaReferenceResponse.json();
const mediaReferenceTaskId = mediaReferenceData.task_id;