Rendering questions
by Richard Boyle
on
Aug 29, 2009 at 4:55:11 am
I have a 30 minute video, which is mostly shot underwater (and thus has a limited color spectrum). It's filmed and edited in 1280*720 format. Now I wish to render it. I have tried H264 but it becomes very pixellated with big blocks. This is the same with several other codecs. I have been using the lagarith codec which gives pretty good results, problem is the sheer file size (something in the region of 60gb!)
I like the filesize and quality of MKV Matroska. Is there a way to encode to this directly from Vegas, or does anyone have any suggestions as to altenatives?
Re: Rendering questions by Mike Kujbida on Aug 29, 2009 at 12:52:46 pm
What you didn't say is what you want to do with the rendered file.
If it's for a DVD, then it has to be MPEG-2 but, since you don't say, we can only guess.
Re: Rendering questions by Richard Boyle on Aug 29, 2009 at 2:19:28 pm
Apologies. It will be for display on a computer so I am open to pretty much any format. I'd just rather not have to deal with enormous file sizes. I rendered it once and it filled up the hard drive. Even my core i7 machine was struggling to maintain decent framerates with that amount of data.
The machine it will be playing on will be much lower spec, but certainly adequate (Athlon X2 6000, 2gb RAM, nv780 chipset, 320 gb HDD, XP).
Re: Rendering questions by Richard Boyle on Aug 31, 2009 at 5:19:48 am
The movie in question was originally a series of different movies, some in AVI format, some I only had the original DVDs (archival films etc) and some were originally MKV files. I converted them all to AVI using River Past Video Cleaner Pro, with the lagarith codec.
The machine I originally edited them on was a nice new Core i7 beast, but for the display I am unfortunately limited to an AMD 4200 machine with an nvidia 8400 video card. It's the only machine that will fit in the available space at the museum. The film is 30 mins long and takes up 42gb under this setting (it's in 720 format)
I have rendered these files as AVI under Lagarith, but they play very slowly though the sound plays normal speed on teh target machine. I've tried using h264, but I keep getting very noticeble banding and pixel blocks in the video. I've tried several other settings and codecs, but with limited success.
So now I have turned to MKV. I realize it's just a container, but it seems to offer excellent quality and may well give me what I want.
Unless you have any other suggestions.
The reason I am running this on a computer is because it's part of a kiosk. I suppose I could run this on the core i7 machine but it's my editing machine, it's rather expensive for a video kiosk and I'd have to do a ton of rebuilding.
Thanks for any help you may offer.
