Release Notes

# Changes in Avidemux v2.8.0 – v2.8.1

## New Features

- New HiDPI compatible button set
- Fast method to add partial filters via CTRL+F shortcut
- Audio department improvements
  - custom frame rate change (audio stretch with pitch control)
  - configurable compressor (DRC)
  - 3-band equalizer
  - independent channel gain options
  - independent channel delay options
  - channel remap options
  - new downmix options: stereo headphone and headphone virtual surround
  - audio track configuration up to 32 tracks
  - volume setting is saved upon exit
- Light and dark theme options in View menu
- Option to remember selected resize method in "Resize", "Fit to size" and "Zoom" filters
- New filter: 3D LUT
- New filter: Decimate
- New filter: Arbitrary Rotate
- New video encoder: VideoToolbox HEVC ("ffVTEncHEVC", macOS only)

## Other Enhancements

- HDR tonemapping performance and quality improvements
- Extended file info
- Rotating mouse wheel over buttons to seek by 60 seconds cycles through 1/2/4/60 seconds seek modes
- Support for decoding 8-bit VP9 in hardware via DXVA2 on Windows and via VDPAU on Linux with graphics cards featuring a VP9 decoder
- Buttons to seek to selection start (A) and end (B) in on-the-fly video filter preview
- Logo image in "Add logo" video filter configuration dialog is now scalable, can be repositioned by dragging
- By default, on-the-fly preview in video filter configuration dialogs is now rendered using OpenGL to improve performance in HiDPI conditions

## Bugfixes

- Crash on copy to clipboard if selection extends to the end of video, a regression introduced in v2.8.0
- Crashes in "Resample FPS" video filter with motion interpolation enabled
- Crash on finishing encoding with the vp9 encoder
- Avidemux falling victim to a crash in VA-API driver triggered by probing on application startup on Linux with some recent hardware
- Crash loading MPEG-TS or MPEG-PS file with MPEG-1 video track and HW decoder via VDPAU enabled
- Wrong number of channels or wrong channel layout with some E-AC3 streams
- Reduced contrast and desaturated colors in loaded BMP images
- Selection starting at zero and ending at the last picture of video cannot be deleted
- Disabling B-frames breaks VideoToolbox HW encoder (macOS only)

## Miscellaneous

- Bundled FFmpeg libraries have been updated to 4.4.2 release.