VirtualDub is an open source video utility that provides fast video capture and processing of AVI files. It is a useful tool for basic video trimming and editing.

Features for video capture:

• Support for Fractional frame rates
• Create AVI2 (OpenDML) files to break the AVI 2GB barrier and multiple files to break the FAT32 4GB limit.
• Integrated volume meter and histogram for input level monitoring.
• Real-time downsizing, noise reduction, and field swapping.
• Verbose monitoring, including compression levels, CPU usage, and free disk space.
• Access hidden video formats supported by your capture card but not shown in the setting.
• Intuitive interface layout and keyboard shortcuts for faster operation.

Features for editing vide:

• Batch-processing capabilities for processing large numbers of files
  
• Can use MPEG-1 and sets of BMP images as input sources.
• Can be extended with third-party filters.
• Support multi-segment AVI clips.
• Integrated MPEG-1 and Motion-JPEG decoders.
• Remove and replace audio tracks without touching the video.
• Remove segments of a video clip and save the rest, without recompressing.
• Extensive video filter set, including blur, sharpen, emboss, smooth, 3x3 convolution, flip, resize rotate, brightness/contrast, levels, deinterlace, and threshold.
• Bilinear and bicubic resampling -- no blocky resizes or rotates here.
• Decompress and recompress both audio and video.