BTW, my interest in VBV buffer size for XSVCD started when I noticed that mpeg2enc failed with the default -V 46 with -f 5 so at first
I'm pretty sure the default video buffer size for -f 5 was 230KB for quite a while now.
Yes, I just recently updated mpeg2enc so I've been missing a lot of features. I started using mp2enc, mpeg2enc, mplex etc via MediaPipe's and MissingMPEG Tools' graphical user interfaces in Mac OS X. There are many other Mac GUIs for these tools but MediaPipe (currently $0) is still most flexible because the user can custom build and configure each component.
Surprisingly MediaPipe is still the only Mac mpeg2enc GUI that can encode interlaced output. For some strange reason people prefer to throw off 50% of their videos and convert them to jerky progressive output on a TV!
<http://mediapipe.sourceforge.net/MediaPipe/> <http://homepage.mac.com/rnc/MMTools.html>
Unfortunately it has been several months since the last MediaPipe update because the authors are finishing their studies and they are also trying to decide what business model they are going to invent for MediaPipe (or its commercialized version called MediaGram).
So mpeg2enc and other components inside MediaPipe are already quite old and some recent OS updates have broken some pipes. The kvcd options prompted me to download newer prebuilt Mac OS X mpeg2enc and mplex binaries from the URL below and update MediaPipe with them via the terminal.
<http://mjpeg.sourceforge.net/MacOS/>
BTW, it seems that the page above is somehow misconfigured because both Internet Explorer and Safari browsers open the mpeg2enc and mplex binaries as gibberish in the browser window instead of automatically downloading them to the disk. Now the user has to control-click them to initiate the download, an action some people may not know.
Is someone updating those mpeg2enc and mplex Mac OS X binaries or should I bite the bullet and learn to do it myself? Prebuilt Mac OS X binaries would be nice for other novices, though.
Are there many other Mac OS X users on this list? How do you use mjpegtools? Via a GUI front-end or via the terminal? What would be the best way to write a GUI for the underlying UNIX tools -- AppleScript, Cocoa??
BTW, I have compiled some (XS)VCD for the Mac and MediaPipe instructions. The MediaPipe_and_SVCD page's chapter "Fine-tuning mpeg2enc" is mostly compiled from info snippets in this mailing list. There are preconfigured MediaPipe templates for some common DV to (XS)VCD MPEG2 and MPEG1 encodings. There are also templates to convert MPEG back to DV. Proper aspect ratios are maintained in all these conversions, something many GUIs don't bother to do despite my nagging ;)
<http://www.sjoki.uta.fi/~shmhav/SVCD_on_a_Macintosh.txt> <http://www.sjoki.uta.fi/~shmhav/MediaPipe_and_SVCD.txt> <http://www.sjoki.uta.fi/~shmhav/MediaPipe_templates.sit>
-- Matti Haveri <[EMAIL PROTECTED]> <http://www.sjoki.uta.fi/~shmhav/>
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