# Changelog ## v1.1.0 ### Features - **Added prediction support** - Reduces file size and improves decoding speed for complex images with many colors - Supports disabling prediction by enabling the legacy option in the EFC converter tools - **Added tile-based scaling support** - Designed to achieve extremely compact file sizes - Supports fixed scaling ratios of **4/5, 2/3, 1/2, and 1/4** - Reuses EFC's built-in `SKIP` and `REPEAT` mechanisms to encode only changed tiles, reducing redundant data - Best suited for emotes and animations with soft edges or details that remain visually acceptable when scaled up - **Added video-to-EFC conversion tools** - Supports direct video-to-EFC conversion - Supports lossless conversion via `--lossless` - Supports converting video to GIF before EFC encoding via `--via-gif` - Supports noise reduction and smoothing through H.264 encoding via `--h264-crf` - Supports automatic file-size targeting by searching for suitable encoding parameters via `--size` - Requires `ffmpeg`. The `--h264-crf` option additionally requires an `ffmpeg` build with `libx264` enabled - **Added an EFC player** - Plays generated EFC files - Supports playback control, including `pause`, `resume`, and frame-by-frame `step` - Supports playback speed adjustment through FPS control ## v1.0.0 ### Features - Initial version of `esp_efc_codec` - Effective support for emote clips - Support for both inter/intra codec - Support for PC convert tools