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It has batch-processing capabilities for processing large numbers of files and can be extended with third-party video filters. VirtualDub is mainly geared toward processing AVI files, although it can read (not write) MPEG-1 and also handle sets of BMP images.
Features of VirtualDub 1.8.6 :
Sure, you've probably played a few video clips on your monitor. But have you ever made one yourself? Used a video capture device? Wrestled with the software that comes with it? Felt like the software is a few leagues above or below your level? Time to try something else.
• VirtualDub helps you get video into your computer.
If your capture device is Video for Windows compatible, then VirtualDub can capture video with it. But VirtualDub isn't your average capture program:
- Fractional frame rates. Don't settle for 29 or 30 when you want 29.97.
- Optimized disk access for more consistent hard disk usage.
- 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 your capture card may support but not have a setting for, such as 352x480.
- Keyboard and mouse shortcuts for faster operation. To capture, just hit F6.
- Clean interface layout: caption, menu bar, info panel, status bar.
• VirtualDub lets you clean up video on your computer.
There are lots of programs that let you "edit" video. And yet, they're frustratingly complex for some of the simplest tasks. VirtualDub isn't an editor application; it's a pre- and post-processor that works as a valuable companion to one:
- Reads and writes AVI2 (OpenDML) and multi-segment AVI clips.
- Integrated MPEG-1 and Motion-JPEG decoders.
- Remove and replace audio tracks without touching the video.
- 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.
- Remove segments of a video clip and save the rest, without recompressing.
- Adjust frame rate, decimate frames, and 3:2 pulldown removal.
- Preview the results, with live audio.
You can take a captured clip, trim the ends, clean up some of the noise, convert it to the proper frame size, and write out a better one. Don't see a video filter you want? Write your own, with the filter SDK.
• VirtualDub is fast.
The author of VirtualDub is very impatient. That means his program is designed for speed, both in the interface and in the processing pipeline. Converting a compressed, 320x240 MPEG-1 file to an uncompressed, 24-bit AVI requires only these two steps in VirtualDub:
- Open video file (Ctrl-O).
- Save AVI (F7).
How fast is this operation? On a C450, 40 frames per second (1.3x real-time speed). With a little tweaking, the speed rises to 55 fps (1.8x), with the CPU hardly breaking a sweat at 40%.
• VirtualDub is cheap.
To be exact, it costs nothing. VirtualDub is licensed under the GNU General Public License, meaning you can use it for free. No risk involved, and the whole source code is available if you want it.
Changes from VirtualDub 1.8.5 to VirtualDub 1.8.6 :
• [bugs fixed]
- Wheel scrolling in the Set Text Information dialog closes the edit control.
- Save Segmented AVI now works with VBR audio.
- Animated GIF export now fails with an error if the current output format is compressed or otherwise not supported.
- JobControl: Fixed crash when one machine attempts to run a job in distributed mode right when another machine deletes it.
- JobControl: The filter crop mode saved in jobs was opposite from selected. (This only affected YCbCr cropping.)
- Capture: Fixed crash when capture driver sends audio samples when DirectShow graph is not running.
- D3D: Fixed sporadic crash on lost device.
- D3D: Fixed Direct3D errors when display debug information is enabled and a video filter fails to initialize.
- Frameserver: Frame rate adjustments weren't always propagated correctly.
• [regressions fixed]
- Fixed crash when using fast/normal recompress mode without a video codec.
- Fixed divide by zero crash when loading video and a video filter in the list is unable to initialize.
- Changing the "source rate adjustment" option no longer invalidates the current selection.
- Rendering would loop endlessly if an error occurred during video compression and threaded compression was disabled.
- Disabling the "directly decode YCbCr formats" option works again.
- Filters: lMicrosecsPerFrame and lMicrosecsPerSrcFrame were reporting milliseconds (broken since 1.8.0).
- JobControl: Fixed case where a non-distributed "load job list" command can fail due to erroneously running distributed-mode code.
- JobControl: Fixed problem where dialog would suddenly close when editing job names.
- Script: Fixed crash when removing video filter from filter chain.
- DV: Audio decoding works again with NTSC DV files (broken since 1.8.4).
• Related downloads:
- VirtualdubMod: is a unification of several popular modifications of the famous video editing software VirtualDub.
- VirtualDub-MPEG2: VirtualDub mod with MPEG2(SVCD,DVD,VOB) import support.
- AviDemux: is a video editor and encoder which can edit, encode, requantize MPEG and AVI, including DivX. It is almost like VirtualDub, but can also encode to VCD/SVCD/DVD mpg.
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