Version 2.6.0 released

v2.6.0 2026-02

• Faster-Whisper-XXL: AI speech recognition with VAD for accurate timestamps
• Automatic backend selection: Faster-Whisper preferred, whisper.cpp as fallback
• Language-specific whisper models: Chinese (Belle-large-v3) and Japanese (Kotoba v2.0)
• Specialized model download: One-click install from HuggingFace
• Sharpen/Denoise filters now work in Copy mode (auto-transcode)
• Improved file size estimation for hardware encoders (NVENC, QSV, AMF)
• Progress bar fix: Overall progress now updates correctly for single files
• Stability: Process cleanup on cancel, thread-safe progress tracking

 

v2.4.0 – Multi-GPU Fix & Encoder UI

• A/B Comparison view with frame-by-frame quality check
• VMAF quality analysis (integrated libvmaf scoring)
• Test encode: 30-second preview before full encoding
• ASS/SSA subtitle style editor (fonts, colors, alignment)
• Scene detection with automatic chapter generation
• HDR tonemapping and deinterlace filter support
• Custom filter chain builder (20+ FFmpeg filters)
• Legacy format detection with modernization presets
• Dolby Vision profile detection and conversion
• Improved progress bar with real-time percentage

  v2.3.2 – Multi-GPU Fix & Encoder UI

  Bug Fix:

  - Fixed GPU detection on multi-GPU systems — dedicated GPU (NVIDIA/AMD) is now correctly preferred over integrated GPU (Intel iGPU).

  Previously, systems like Intel 6700K + NVIDIA RTX 2060 would detect only the Intel iGPU and miss NVENC entirely.

  Improvements:

  - All installed GPUs are now detected independently — NVENC, QSV, and AMF are tested based on all available hardware, not just the primary GPU

  - Hardware acceleration dropdown now grays out unavailable encoders with tooltips explaining why (e.g. "Kein NVIDIA GPU erkannt")

  - Removed platform-irrelevant options (VAAPI, VideoToolbox) from the encoder list

  - GPU info bar now shows a full summary with all available encoders (e.g. "NVIDIA RTX 2060 (6GB) - NVENC Ready, QSV Ready")

v2.2.0 - Subtitle Improvements

● Devlog: External VobSub (.sub/.idx) Support

External VobSub subtitles (.sub/.idx) are now fully supported.

Previously, only text-based external subtitles (SRT, ASS, TTML) could be added and burned in. Image-based VobSub files (.sub + .idx), commonly found in DVD rips, were not recognized and caused FFmpeg encoding errors.

What’s new:

• .sub files are automatically detected as VobSub on import (binary header detection)

• The subtitle editor correctly displays “OCR required”

• The corresponding .idx file is automatically loaded from the same directory

• OCR extraction works: timestamps are parsed directly from the .idx, images are extracted via a temporary MKV

• After OCR, the track is updated in-place and immediately ready for burn

• Encoding is blocked until VobSub tracks are converted via OCR — clear error message instead of cryptic FFmpeg failures

Technical details:

• VobSub detection via MPEG-PS header (0x00 0x00 0x01 0xBA)

• IDX parsing for reliable timestamp mapping

• Muxing into a temporary MKV for compatible image extraction

• Deadlock fixes in async subtitle conversion (Task.Run wrapping)