Matt Crowley
Forum Replies Created
-
Previewing an image sequence can be pretty heavy work depending on the source image sizes, so rendering them out to a video makes sense for smooth editing – use an intermediate format or low compression (high bitrate) to maintain quality.
If you need to do any pan/crop or major colour/exposure etc adjustments to the image sequence, do them before rendering to get the best quality output.
-
Update:
https://wiki.videolan.org/Deinterlacing
Looks like there are lots of deinterlacing options in VLC… try Yadif 2x -
In the case of LCD TVs, they are doing deinterlacing in an image processing chip that typically produces one full picture from each video field, so you are seeing 50 progressive pictures per second (50p).
You can do a similar thing in software on your PC. I don’t use VLC, but I believe it has a variety of deinterlacing modes. Look for deinterlace methods called “doubler” or “yadif” – they will give you 50p from a 25i source. Try them all to see what you like best.
-
For some reason, the help files are installed to a shared folder that is common to the different versions of Vegas. On my system that folder is C:Program FilesSonyShared Plug-InsHelp Files
I think the help files for Movie Studio regular and Platinum editions are the same, so your probably got removed when you uninstalled the regular Studio.
You can try reinstalling Platinum over the top of the existing Platinum to restore the files, or you might be able to “repair” the installation. I ended up with something similar after uninstalling a trial version.
-
Theoretically yes, it’s just a matter of displaying each field (half of an interlaced frame) in succession at 50 (or 60) fields per second. But interlacing was designed to suit CRT TVs, which are scanned one line at a time in two passes (hence the flicker from any CRT TV). If you try to do this on an LCD you either get a jittery image or half the vertical resolution, so some clever image processing (the deinterlacing) is usually done in the TV to merge the 2 fields into 1 full frame. PC are quite capable of doing the same type of thing, but it’s usually done in software by the player, and there are many ways of doing it.
-
I haven’t used VLC, but Media Player Classic (MPC) can use GPU accelerated deinterlacing which appears to give 50 output frames/sec for 25i input.
I also use ffdshow’s deinterlacing with MPC, and ffdshow offer several deinterlacing methods including motion compensated interpolation to give proper 50p output from 25i (or 60p from 30i). This is probably the sort of thing that higher-end LCD TV are doing, and looks very fluid and smooth.
-
You’ll probably find that any 25p (and sometimes even 25i) footage looks a bit choppy on a PC monitor since the monitor typically refreshes at 60Hz which isn’t so good for the 25/50Hz frame rate of PAL type video. You’re effectively getting jitter anytime you play back 25p/25i video. 30fps generally looks smoother on PC monitors since the frame rates match (or are very close).
If you can set your video card to refresh at 75Hz then try that – since it’s a multiple of 25Hz you might find that your 25p footage looks a bit less choppy.
-
Glad to help. The “disable resample” trick eliminates ghosting for situations like this (input framerate is an exact multiple of output framerate).
Even when the framerates aren’t nice ratios (eg 24p > 25p) it might be better to have some jitter rather than lots of blending.
-
Actually, I’ve never used the FFV1 codec, but I have used ffdshow to help with a couple of odd situations where I didn’t have the codec or the existing Windows/Vegas codec didn’t work correctly. I tend to use ffdshow only for playback in MPC or other media players.
-
In the basic titler, you can simply insert a blank line, then change its font size to something smaller that gives the desired vertical spacing. Of course, this is not great if you need to space out lots of lines…