creating HD flash video

goodtimej wrote on 11/13/2008, 10:05 PM

Hey,
I have a project I am working on, HDV 1080 60i. I eventually need to get this in .flv format ready for the web. I am aware that Vegas does not produce .flv, that is no big deal as I do have Flash 8 video encoder. What I need to know is, how should I render the individual clips before I bring them into the Flash encoder? I tried .m2t, but Flash encoder does not like those. I was thinking uncompressed .avi, but then I lose my dimensions coming into Flash and I'm left with square footage that should be widescreen. Can someone please help?
Thanks

Comments

Avanti wrote on 11/14/2008, 9:31 AM

render it to an uncompressed AVI, then use your Flash encoder to render the flash video.

http://www.avantibiz.com

John_Cline wrote on 11/14/2008, 1:55 PM

HDV is 1440x1080 with a pixel aspect ratio of 1.3333:1. This means that even though it's 1440x1080, it displays at 1920x1080. When you render an uncompressed intermediate file from Vegas, change the image dimensions to a custom setting using a 16x9 ratio and a PAR of 1.0.

Since a lot of video codecs deal with images in 4x4, 8x8 or 16x16 blocks, it's best to render to am image size that is evenly divisible by 4, 8 or 16.

Here are the best image sizes based on being divisible by 16:

1280x720
1024x576
768x432
512x288
256x144

Here are some additional resolution that are divisibe by 8:

1152x648
896x504
640x360
384x216
128x72

And finally, here are more that are divisible by 4:

1216x684
1088x612
960x540
832x468
704x396
576x324
448x252
320x180
192x108

goodtimej wrote on 11/14/2008, 5:17 PM

Wow! Many great thank you's for such a thorough reply!!

goodtimej wrote on 11/17/2008, 1:41 PM

OK, so kind of on the same topic here. Say I am working in NTSC DV widescreen and I want to render .wmv. Whats the trick there? I always end up with black bars or less than optimal results as far as sizing goes, always seems like I can't get it right. Any hints?