Tomoviee Tail to Video

Generate videos from first and last frame images using Tomoviee First-Last Frame API (tm_tail2video_b) via Wondershare OpenAPI gateway (https://openapi.wondershare.cc). Requires app_key and app_secret. Use when users request first-last keyframe interpolation, start-end frame animation, or two-image to 5-second video generation.

Tomoviee AI First-Last Frame to Video

Overview

Generate a 5-second video from two keyframe images:

• image: first frame
• image_tail: last frame

API capability: tm_tail2video_b

Provider and Endpoint Provenance

Use this mapping to verify provenance before using production credentials:

• Vendor portals: https://www.tomoviee.ai and https://www.tomoviee.cn
• Runtime API gateway host used by this skill: https://openapi.wondershare.cc
• Create endpoint: https://openapi.wondershare.cc/v1/open/capacity/application/tm_tail2video_b
• Result endpoint: https://openapi.wondershare.cc/v1/open/pub/task

This skill sends runtime API requests only to openapi.wondershare.cc.

Credential Handling

• Sensitive credentials required: app_key and app_secret.
• Credentials are only used to build Authorization: Basic <base64(app_key:app_secret)>.
• Credentials are kept in process memory only and are not written to disk by this skill.
• Do not hardcode credentials in source files or commit them to git.

Required Inputs

• Credentials: app_key, app_secret
• Generation inputs: prompt, image, image_tail

Scope

• This skill only covers tm_tail2video_b (first-last frame to video).
• Output duration is fixed to 5 seconds by API design.
• This skill does not implement text-to-video, image-to-video, or video continuation APIs.

Dependencies

• Runtime dependency: requests>=2.31.0,<3.0.0
• Install with: pip install -r requirements.txt

Quick Start

Install dependencies

bash

pip install -r requirements.txt

Authentication helper

bash

python scripts/generate_auth_token.py YOUR_APP_KEY YOUR_APP_SECRET

Python Client

python

from scripts.tomoviee_firstlast2video_client import TomovieeFirstLast2VideoClient

client = TomovieeFirstLast2VideoClient("app_key", "app_secret")

API Usage

Basic Example

python

task_id = client.firstlast_to_video(
    prompt="Scene transitions naturally from first frame to last frame with smooth motion",
    image="https://example.com/first-frame.jpg",
    image_tail="https://example.com/last-frame.jpg",
    resolution="720p",
    duration=5,
    aspect_ratio="original",
)

result = client.poll_until_complete(task_id)
import json
video_url = json.loads(result["result"])["video_path"][0]
print(video_url)

Parameters

• prompt (required): Motion guidance text.
• image (required): First frame image URL.
• image_tail (required): Last frame image URL.
• resolution (optional): 720p or 1080p, default 720p.
• duration (optional): only 5 is supported.
• aspect_ratio (optional): 16:9, 9:16, 4:3, 3:4, 1:1, original.
• camera_move_index (optional): camera movement type 1-46.
• callback (optional): callback URL.
• params (optional): transparent callback parameter.

Image Constraints

• File size: each image must be <200M
• Formats: JPG, JPEG, PNG, WEBP
• Recommended resolution: at least 720p source quality

Async Workflow

1. Create task and get task_id
2. Poll with poll_until_complete(task_id)
3. Parse video URL from result

Status codes:

• 1 queued
• 2 processing
• 3 success
• 4 failed
• 5 cancelled
• 6 timeout

Resources

• scripts/tomoviee_firstlast2video_client.py - main API client
• scripts/generate_auth_token.py - auth token helper
• references/video_apis.md - API reference and constraints
• references/camera_movements.md - camera movement index reference
• references/prompt_guide.md - prompt writing guidance

External Resources

• Developer portal (global): https://www.tomoviee.ai/developers.html
• API docs (global): https://www.tomoviee.ai/doc/ai-video/first-and-last-frame-to-video.html
• Developer portal (mainland): https://www.tomoviee.cn/developers.html
• API docs (mainland): https://www.tomoviee.cn/doc/ai-video/first-and-last-frame-to-video.html