[Bug]: Audio and video become out of sync when trimming clips

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[Feature]: Blur region

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[Feature]: Add Microphone Noise Cancellation and Noise Reduction Controls to the Screen Recorder

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[Feature]: Add HEVC (H.265) export support

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Linux X11: no cursor telemetry, so no follow-cursor zoom

Follow-up to #1491 / #1492.

[Feature]: Optimize GIF compression to reduce file size

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[Bug]: Timeline in editor video preview stuck or laggy

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[Feature]: Add pause and resume option for Voiceover

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[Bug]: bad quality of desktop screen

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[Bug]: Exported video poor quality (Linux)

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fix(speed): accept a trailing × or x in the custom speed field

## Summary

[Feature]: Additional annotations

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fix: pick the YCbCr matrix per frame on macOS

On macOS, `sample_yuv` always converted with BT.709, so BT.601 (and BT.2020) footage came out with shifted hues. The matrix now follows each frame.

fix(export): bound a clip by the container duration, not a one-frame video stream

## Summary A static screen capture can hold a single video frame in a file whose audio and container run longer. The export clamped each clip to the video stream duration, so such a clip was cut to one frame, or dropped silently when it started after the frame length.

[Bug]: edit clip ratio select after , cursor not follow screen, not ahow some area , please fix that

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feat: add timeline layout changes with smooth transitions

## Summary

feat(recording): add camera-only recording mode

## Summary

feat(linux): add Hyprland cursor tracking and position zoom

## Summary Adds native Hyprland cursor tracking for Linux recordings and renders position-only cursor telemetry in the editor and exports.

[Feature]: Import SRT subtitles into the transcript

Today the transcript (and the captions built from it) can only come from OpenScreen's own transcription. Users who already have subtitles, from a human transcriber or another tool, can't bring them in.

feat(webcam): add Green Screen (Chroma Key) cutout mode

## Summary Adds GPU-accelerated **Green Screen (Chroma Key)** webcam cutout support across all three native compositor backends (Metal on macOS, D3D11 HLSL on Windows, and Vulkan WGSL on Linux), integrated inside the **Cutout** camera background mode.

[Feature]: More precise cropping controls

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[Feature]: Export without Audio/Sound - AFTER recording WITH sound, for Transcript Captions

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Native review wanted: machine-translated recording bar tooltips (14 locales)

The recording bar (HUD) tooltips were rewritten in #912. The English is the source of truth. The 14 other locales were machine-translated by an AI agent and reviewed by a second one; they have **not** been read by a native speaker. Native reviewers are welcome.