upscale_pipeline

Generate AI videos via OpenRouter and optionally upscale them with ffmpeg.

Prerequisites

• Rust
• ffmpeg and ffprobe on $PATH
• An OpenRouter API key in .env:

OPENROUTER_API_KEY=sk-or-v1-...

Usage

# Minimal — text to 480p video, no upscale
cargo run -- --prompt "A mountain at sunrise" --duration 4

# With a reference image and upscale to 1280px
cargo run -- --prompt "A mountain at sunrise" --duration 4 --image assets/ref.jpg --upscale 1280

# Full options
cargo run -- \
  --prompt "The mountain stands above the clouds" \
  --duration 4 \
  --image assets/ref.jpg \
  --resolution HD \
  --aspect-ratio 16:9 \
  --upscale 1920

Flag	Description
-p, --prompt	Video generation prompt (required)
-d, --duration	Duration in seconds (required)
-i, --image	Reference image to upload and use as input
-a, --aspect-ratio	1:1, 16:9, or 9:16
-m, --model	Model ID (default: bytedance/seedance-2.0-fast)
-r, --resolution	SD (480p), HD (720p), or FHD (1080p) (default: SD)
-u, --upscale	Upscale longer side to N pixels; omit to skip upscale entirely
-h, --help	Print help

Structure

src/
├── main.rs                    — CLI entry point and pipeline orchestration
├── upscale.rs                 — ffmpeg-based video upscaling
└── api/
    ├── mod.rs                 — module root
    ├── openrouter/
    │   ├── client.rs          — OpenRouter HTTP client
    │   └── types/             — request and response models
    └── tmpfiles/
        └── client.rs          — tmpfiles.org image upload