Versione 1.9.7
S.O. Windows XP x64 Pro
Dimensioni 1911 Kbytes
Licenza Freeware
Produttore http://www.virtualdub.org/
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VirtualDub è un software per l’acquisizione di contenuti video e la conversione nei più comuni formati (avi, mpeg ecc).
Grande pregio di questo software, oltre alla licenza freeware, è la leggerezza del codice, che però si traduce in un’interfaccia grafica molto “spartana”.
Versione sperimentale per processori AMD 64 (Athlon 64 e Opteron), necessita di sistema operativo Windows XP Professional x64 Edition.
What is VirtualDub?
VirtualDub is a video capture/processing utility for 32-bit and 64-bit Windows platforms (98/ME/NT4/2000/XP/Vista/7), 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.
I basically started VirtualDub in college to do some quick capture-and-encoding that I wanted done; from there it’s basically grown into a more general utility that can trim and clean up video before exporting to tape or processing with another program. I released it on the web and others found it useful, so I’ve been tinkering around with its code ever since. If you have the time, please download and enjoy.
VirtualDub 1.9.7 released
VirtualDub 1.9.7 is now out, and is another stable release containing only bug fixes for reported problems.
The most important fix in this version is a change to the code that reads AVI hierarchical indices. Normally these indices are only two levels deep, with a master index in the header and subindex blocks covering no more than 4GB. If you’re wondering whether deeper indices are possible, the answer is an emphatic yes. It turns out there’s at least one hardware/software editing solution that produces AVI files with deep index trees, because it links all of the subindex blocks with internal nodes arranged in a degenerate tree. The trace I received of a 46GB capture showed a tree more than 20 levels deep. This was causing a crash in 1.9.6 because of some changes that I made a while back to fix slow index reading speed problems over a network; in doing so I had increased the size of an I/O buffer on the stack and this was causing a stack overflow. 1.9.7′s index read routine has much lower stack usage and should be able to read AVI files with deeply nested indices again.
I’ve been spending some time in the dev branch trying to add new raw video formats to the blitter library, and I think I’ve spent so much time in Scilab staring at YCbCr matrices that they’re all starting to blur together. Nevertheless, the blitter autotests are finally passing again (although at a slower rate, since the test matrix is now 37×37 instead of 17×17), and I think I’m finally making some progress here. The next step would be to add support for the new formats to the video source and display paths, which should finally get some of these new formats into a usable path. Some optimization would be needed after that since all of the new formats are currently leveraging a lot of unvectorized C++ code, but we’ll see how that turns out.
Release build — 1.9.7 (stable), 64-bit (AMD64) version
This version is compiled specifically for CPUs that support AMD64/x64 long mode, including AMD Athlon 64, AMD Athlon X2, AMD Opteron, Intel Xeon CPUs with EM64-T, and Intel Core i7 CPUs. You must have the x64 Extended (64-bit) version of Windows to run the 64-bit version of VirtualDub. You cannot run this version on a 32-bit version of Windows even if your CPU is 64-bit capable.
It is recommended that you use the 32-bit version unless you have a specific need for 64-bit execution, as the 64-bit version cannot use 32-bit codecs or plugins.
List download mirrors for V1.9.7 (AMD 64-bit) release build (VirtualDub-1.9.7-AMD64.zip)
http://sourceforge.net/projects/virtualdub/files/virtualdub-win/1.9.7.32661/VirtualDub-1.9.7-AMD64.zip/download
