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v2.2 — Image-to-Image End Frames + Stability Enhancements

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@lcy362 lcy362 released this 19 Jun 03:59
· 1 commit to master since this release
v2.2
2be8781

Release v2.2 — Image-to-Image End Frames + Stability Enhancements

Release date: 2026-06-19

Overview

v2.2 introduces the i2i (Image-to-Image) end frame pipeline, enabling visual consistency across creative video scenes. This release also delivers comprehensive stability fixes from the second code review batch, a global rate limiter, unified API retry logic, and i18n improvements.

i2i End Frame Pipeline

Six-batch feature implementation for visual consistency across scenes:

  • Batch 1+2 — Image model unified to agnes-image-2.1-flash, i2i array API, character reference image size normalization
  • Batch 3 — Character appearance persistence across scenes, programmatic prompt injection
  • Batch 4 — Prompt structure optimization, facial detail requirements in character reference prompts
  • Batch 5 — Multi-image guided i2i end frames, visual chain linking across scenes
  • Batch 6 — Keyframes fallback branch synchronization, full 6/6 batches complete
  • Creative videos now default to i2i end frames enabled, narrator subtitles disabled

Stability & Bug Fixes

Code Review Batch 2 Fixes (P1-P13)

ID Fix
P1 Video concatenation sync blocking → async
P2 active_pipelines concurrent race condition
P3 Custom end frame not applied
P4 Manuscript step key alignment
P5 chat_json robustness
P6 Resource leaks
P7 Parameter validation improvements
P8 Prompt injection protection
P9 SilentTTS return code handling
P10 Subtitle silent degradation on failure
P11 LLM retry logic
P12 URL cache expiry
P13 Temp filename uniqueness

Other Fixes

  • Resume crash — _upload_image_to_host method name error, _run_pipeline task_id undefined, load() creating empty directories
  • Concatenator AttributeError — video concatenation failure path
  • Global rate limiter — token bucket (16 req/min) shared across Chat + Image + Video APIs
  • API retry — exponential backoff for 429/5xx errors across all three API modules
  • Regression runner — 404 polling detection, --quick manifest mode, resume enhancements

i18n Improvements

  • Duration parsing now supports all 7 languages (zh/en/ru/ja/ko/ms/id)
  • User requirements and visual style defaults localized per language

Documentation

  • docs/bug_fix_plan.md — comprehensive bug fix plan (added)
  • docs/regression_test_plan.md — updated scenarios and flow rules
  • AGENTS.md — synced rate limiter architecture, runner resume strategy
  • docs/release-notes/ — v2.0 and v2.1 release notes (added)
  • Fixed official website link label (not "Live Demo")

Stats

23 files changed, 1,189 insertions(+), 479 deletions(-)

Key Files

File Description
core/api/rate_limiter.py New — global token bucket rate limiter
core/api/agnes_chat.py LLM retry + JSON mode improvements
core/api/agnes_image.py i2i array API + ref image support
core/api/agnes_video.py Retry logic + 429 handling
core/pipelines/creative_video.py i2i end frame pipeline integration
core/screenwriter.py Character appearance persistence
core/compositor/concatenator.py Async refactor + bug fixes
core/task_manager.py Resume crash fixes + backward compat
server.py Rate limiter integration + endpoint fixes
static/index.html i18n duration parse + style defaults
scripts/regression_runner.py Resume + quick-verify enhancements
docs/bug_fix_plan.md New — bug fix tracking

Upgrade Notes

From v2.1:

git pull
./start.sh
Assets 2
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