DPP Pipeline

Run the DPP storyboard, placement, and compose-best flow from a local workspace.

The skill bundles its Python runtime under runtime/, but it does not treat the installed skill directory as the project workspace. Inputs and outputs live under the caller's current working directory by default. Override that with DPP_WORKDIR when needed.

When to Use

• Generate storyboard.json from a local video with dpp-storyboard.
• Generate a single-product material config from one product image under assets/.
• Select the best storyboard segment for one product image with dpp-placement.
• Run the final best-segment composition flow with dpp-compose-best.
• Replace the best segment in the original video with the generated clip using dpp-final-cut.

Do not use this skill for multi-product batch processing. This skill handles one local video and one product image at a time.

Dependencies

• Python 3.11+
• ffmpeg
• Network access to Ark and TOS
• Ark environment variables in the target workspace .env
• TOS_BUCKET, TOS_AK, TOS_SK, TOS_ENDPOINT, and TOS_REGION when compose-best must auto-upload the reference clip or image
• TOS_OBJECT_PREFIX, TOS_ENABLE_HTTPS, and TOS_FORCE_ENDPOINT are optional TOS tuning variables

Install Python dependencies by running:

scripts/bootstrap_runtime.sh

Workspace Layout

The runtime lives inside the installed skill. The caller workspace holds inputs, configs, logs, and outputs:

\x3Cworkspace>/
  .env
  assets/
    \x3Csingle product image>
  video/
    demo.mp4
  configs/
    placement_material.json
  log/
  output/
    \x3Cvideo_stem>/
      finalCut/

Initialize a new workspace with:

scripts/init_workspace.sh

That command creates assets/, video/, configs/, and output/, and copies sample files into place.

Workflow

1. Run scripts/bootstrap_runtime.sh.
2. If the target workspace is empty, run scripts/init_workspace.sh.
3. Ensure the workspace .env contains Ark credentials and defaults.
4. Ensure video/demo.mp4 exists before storyboard, unless the user will pass --video.
5. Ensure assets/ contains exactly one product image before material generation, unless the user will pass --image.
6. Run scripts/run_storyboard.sh.
7. Run scripts/run_generate_material.sh.
8. Run scripts/run_placement.sh.
9. Run scripts/run_compose_best.sh.
10. Run scripts/run_final_cut.sh.

Do not skip stage ordering unless the user explicitly asks to reuse an existing artifact.

Review Pauses

Do not pause by default.

• If the user wants review pauses, stop after each requested stage and report the artifact path.
• If the user asks to continue, move directly to the next stage when the required inputs already exist.
• If the user asks to rerun a later stage, reuse earlier artifacts unless the input changed.

Typical checkpoints:

• After storyboard: review segmentation quality and thumbnail coverage.
• After placement: review best_segment_index, ranking, and placement rationale.
• After compose-best: review composition_result.json, prompt quality, and reference-media URL status.
• After final-cut: review finalcut_result.json and verify the output video at output/\x3Cvideo_stem>/finalCut/final_cut.mp4.

Execution Rules

• Run the stage scripts from the caller workspace, or set DPP_WORKDIR to the target workspace path.
• Keep the installed skill directory immutable except for .venv/ and the generated runtime/ bundle.
• Always bootstrap the runtime before the first stage command.
• dpp-storyboard, dpp-placement, and dpp-compose-best can each take more than 10 minutes. Do not assume the process is hung just because it is quiet for a while; warn the user that the stage is long-running and let it complete naturally.
• After each stage, report the main artifact path.
• Before compose-best auto-upload, verify TOS_BUCKET, TOS_AK, TOS_SK, TOS_ENDPOINT, and TOS_REGION if the user did not provide --reference-video-url or DPP_REFERENCE_VIDEO_URL.
• This skill sends prompts and media metadata to Ark. Compose-best may also upload the reference clip and product image to TOS.

Detailed commands live in references/commands.md.

Scripts

• scripts/bootstrap_runtime.sh
• scripts/init_workspace.sh
• scripts/run_storyboard.sh
• scripts/run_generate_material.sh
• scripts/run_placement.sh
• scripts/run_compose_best.sh
• scripts/run_final_cut.sh

Each script forwards all CLI arguments to the underlying Python module.