Larry's HV20 clip--raw and then pure 24p

[Barlow Elton]

Originally Posted by Brad Schreiber

Forgive my lack of knowledge on this, but why was pulldown added going out to an .m2t file? I shot Canon XLH1 footage in 24f and went out to .m2t through firewire, and no pulldown was added. Did you go out via HDMI? I'm curious as to the reason for this.

It's a consumer camera and pulldown is added (most likely) for 1080i standards compatibility. It makes it so the camera can simply plug into most HDTV's and display correctly.

[Barlow Elton]

Originally Posted by Greg Boston

FYI, I got jerky playback on the H.264 file also. I've had some similar problems when encoding H.264 using MPEG Streamclip.

-gb-

I suspect it might be due to B frames added to the encoding process.(an option in the latest MPEG Streamclip) I can make a version without them and it might play back more smoothly. The only reason I made a high bit rate h.264 was to try and keep the conversion as close in quality to the original m2t as possible.

Unfortunately, I don't have the ability to do HD WMV's on my G5.

[Dan Peterson]

FYI,
The clip plays better using Nero Showtime (I just bought Ultra 7 Enhanced), although still somewhat jerky.

[Fergus Anderson]

This 24p raw file plays flawlessly in Media Player Classic using DScaler 5 IVTC mod (72hz display at 24fps is best)

[Robert Hicks]

Originally Posted by Barlow Elton

I suspect it might be due to B frames added to the encoding process.(an option in the latest MPEG Streamclip) I can make a version without them and it might play back more smoothly. The only reason I made a high bit rate h.264 was to try and keep the conversion as close in quality to the original m2t as possible.

Unfortunately, I don't have the ability to do HD WMV's on my G5.

Barlow, Do a google search for flip4mac and see if that helps.
(Windows Media® Components for QuickTime player should be free)

[Kris Galuska]

So if it is a normal pull down, we should be able to use vegas or cinaform, correct?


-Kris

[Austin Meyers]

Originally Posted by Kris Galuska

So if it is a normal pull down, we should be able to use vegas or cinaform, correct?


-Kris

correct, fcp's cinema tools work fine with the footage i've played with thus far. you have to set the removal pattern manually, but once you figure it out it's smooth sailing.

[Barlow Elton]

Originally Posted by Robert Hicks

Barlow, Do a google search for flip4mac and see if that helps.
(Windows Media® Components for QuickTime player should be free)

I've already downloaded and used the demo. It watermarks everything now.

[Chris Sorensen]

There's a free version of Flip4Mac that adds a wmv plugin for playback. Doesn't encode but you can play.

[Barlow Elton]

Here are some (hopefully) pc friendly clips: divx and wmv

http://media.dvinfo.net/canonhv20/hv20108024p.divx (28 MB)
http://media.dvinfo.net/canonhv20/hv20108024p.wmv (25 MB)

Something's wonky with the wmv. I installed the flip4mac demo again and it will encode, but the clip gradually gets a greenish tint. I have no idea why but it should play ok for most.

[Lee Wilson]

Ah. . . the joys of living in a pulldown free PAL world ! :)

[Fergus Anderson]

Lee do you know how the 25p raw files will play? In VLC will they show interlacing artifacts as they are in a 1080i stream? What will be the effect of the various deinterlacing options such as blend fields in VLC for playback?

How will Vegas be able to handle the files?

Cheers

[Etienne Botha]

Ok wow, I REALLY like the direction of this.

http://stevenbothe.com/up/hv20-raw-24df-AppleTV.mov

720p single pass, apple tv compatible, basic warm processing, sheer for intermediate codec and pull down removal via cinema tools of course

no strobe, just smooth 24p

AMAZING I THINK!

I'm going V1U, but gosh, this is AWSOME for b-roll guys!

I thought there were interlace artifacts in the window awnings, but it was just shadows from fire escapes, hahaha. First try I was really disappointed, played around a bit with my settings, and OMGOSH, I LOVE THIS NOW!

I can't wait to see what comes out next from Sony and Canon!!

[Barlow Elton]

Originally Posted by Lee Wilson

Ah. . . the joys of living in a pulldown free PAL world ! :)

Indeed. I'd almost buy a PAL version of the camera simply to be free from this annoyance.

[Barlow Elton]

Originally Posted by Fergus Anderson

Lee do you know how the 25p raw files will play? In VLC will they show interlacing artifacts as they are in a 1080i stream? What will be the effect of the various deinterlacing options such as blend fields in VLC for playback?

How will Vegas be able to handle the files?

Cheers

I'm sure the actual 25p PAL version of HV20 footage won't have interlace artifacts at all. It's carried in the 1080i stream, but it's pure progressive.