Version History of VirtualDub 1.4.8 [features added]
Motion JPEG decoder has improved heuristics for field
order determination, support for restart markers, and
supports 4:4:4 as well as 4:2:0 and standard 4:2:2.
An error is now thrown if a third-party driver leaves
the CPU in MMX state when returning, which previously
could cause floating-point code to malfunction.
Added workaround for ASUS ASV1 driver crashing under
Windows NT platforms.
MPEG-1 files with small amounts of junk at the
beginning are now recognized.
BMP image sequences can now be loaded as well as saved.
Frame rate changes are reflected in the timestamp
panel.
Hex Editor no longer locks files and can highlight
important fields in AVI files.
Capture: Luma squish now supports UYVY in addition to
YUY2.
AVI handler can now recover OpenDML segments from
truncated files and has more aggressive recovery
methods.
AVI handler recognizes \'bt20\' as a format that does not
have delta frames.
Added workaround for audio sync problems caused by
malformed AVI files with VBR MP3 audio.
Support for masking video frames and for autoscanning
the video stream for bad frames to mask.
[bug fixes]
No more crashing when attempting to do certain kinds
of seeks with no video loaded.
Capture: Noise reduction works properly with cropping.
Fixed MPEG-1 frame order bug in frameserver that was
also introduced in 1.4.6.
Fixed MPEG-to-AVI conversion resulting in trashed
wPriority and wLanguage fields in the stream header.
Capture: Under Windows 98/2000, monitor and system
power down are inhibited in capture mode.
Fixed scripts and job entries being trashed when the
generated script exceeds 16K.
Fixed codec issues caused by script system not handling
long strings produced from codec data. Thanks to the
DivX 4 team for reporting this one.
IVTC no longer causes bitrates for CBR video codecs
to drop by 20%%.
Fixed output files being generated with type \'ivas\'
when the source was a type-1 DV file.
Fixed diagonal stripe or crash with MMX version of
Levels filter when input bitmap is an odd width.
Fixed AVI streaming routines going off the deep end
when encountering garbage data in the AVI stream.
Fixed occasional corrupted frames when playing back
AVI with \"drop frames when behind\" enabled.
IVTC now forces interleaving on a 4-frame basis like
it\'s supposed to.
The audio compression dialog was passing bad precision
values to audio codecs and only querying for real-time
compression.
Corrected crashes or errors on uncompressed video
streams that have a zero or incorrect biSizeImage field.
Capture: Multisegment and info panel settings saved
correctly.
Capture: Compatibility mode capture prohibited when
multisegment capture enabled.
About:
VirtualDub is a video capture/processing utility for 32-bit Windows platforms (95/98/ME/NT4/2000/XP), licensed under the GNU General Public License (GPL). It lacks the editing power of a general-purpose editor such as Adobe Premiere, but is streamlined for fast linear operations over video. 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.
An exciting history of VirtualDub startup can be found here.
