Photo JPEG Conversion at DVinfo.net

Brad Schreiber · April 7th, 2006, 08:14 PM

I converted some 60i footage into Offline PhotoJPEG, and I can see the difference between the high res clip and it. Which JPEG setting is the lossless version I've heard so much about on this forum.

Barlow Elton · April 7th, 2006, 08:29 PM

http://www.hdvxdv.com, http://www.squared5.com/

--Download the trial of HDVxDV,
--Download MPEG Streamclip
--Capture m2t's in HDVxDV
--Open MPEG Streamclip
--Drop your m2t's into the main window. Go to "Export Quicktime" and choose PhotoJPEG, drag the slider to the right to be "75% qualtiy". Choose the frame size of 1920x1080. You can also choose 100% quality just to check the differences.
--Create a custom setup in FCP to work with PhotoJPEG 1080i clips. Make sure the timeline is set to work with a 1920x1080 frame size.
--Import clips into FCP and edit away.

This is the only way you'll get usable 24F captures. FCP won't capture 24F AFIK. There's also a utility called DVHS Cap that can supposedly capture 24F, but I havent' tried it.

Michael Galvan · April 8th, 2006, 01:10 PM

I use DVHSCap to capture 24F footage, and it works very well. I then take the 24F .m2t into MPEG Streamclip and do my conversions there.

Ron Pfister · April 8th, 2006, 01:56 PM

Quote:

Originally Posted by Michael Galvan

I use DVHSCap to capture 24F footage, and it works very well. I then take the 24F .m2t into MPEG Streamclip and do my conversions there.

There seems to be one critical limitation to DVHSCap: as far as I've been able to determine, DVHSCap is unable to capture time code. I will do some more testing tomorrow, also involving HDVxDV, and will report what I find...

K. Forman · April 8th, 2006, 02:06 PM

Ok... I gotta ask this- what happens to the audio when you change it to photojpeg? Is it capable of using audio tracks, or do you need to have them seperate?

Barlow Elton · April 8th, 2006, 03:49 PM

Typically your audio is converted to 16bit 48khz uncompressed. It's integrated with the video.

April 7th, 2006, 08:14 PM	#1
Brad Schreiber Regular Crew Join Date: Feb 2006 Location: Los Angeles, CA Posts: 96	Photo JPEG Conversion I converted some 60i footage into Offline PhotoJPEG, and I can see the difference between the high res clip and it. Which JPEG setting is the lossless version I've heard so much about on this forum.

April 8th, 2006, 01:10 PM	#3
Michael Galvan Major Player Join Date: Sep 2004 Location: New York, NY Posts: 775	I use DVHSCap to capture 24F footage, and it works very well. I then take the 24F .m2t into MPEG Streamclip and do my conversions there. __________________ www.michaelgalvan.com www.screenanthology.com

April 8th, 2006, 02:06 PM	#5
K. Forman Capt. Quirk Join Date: Apr 2002 Location: Middle of the woods in Georgia Posts: 3,596	Ok... I gotta ask this- what happens to the audio when you change it to photojpeg? Is it capable of using audio tracks, or do you need to have them seperate? __________________ www.SmokeWagonLeather.us

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April 7th, 2006, 08:29 PM	#2
Barlow Elton Major Player Join Date: Mar 2005 Location: UT Posts: 945	http://www.hdvxdv.com, http://www.squared5.com/ --Download the trial of HDVxDV, --Download MPEG Streamclip --Capture m2t's in HDVxDV --Open MPEG Streamclip --Drop your m2t's into the main window. Go to "Export Quicktime" and choose PhotoJPEG, drag the slider to the right to be "75% qualtiy". Choose the frame size of 1920x1080. You can also choose 100% quality just to check the differences. --Create a custom setup in FCP to work with PhotoJPEG 1080i clips. Make sure the timeline is set to work with a 1920x1080 frame size. --Import clips into FCP and edit away. This is the only way you'll get usable 24F captures. FCP won't capture 24F AFIK. There's also a utility called DVHS Cap that can supposedly capture 24F, but I havent' tried it.

April 8th, 2006, 03:49 PM	#6
Barlow Elton Major Player Join Date: Mar 2005 Location: UT Posts: 945	Typically your audio is converted to 16bit 48khz uncompressed. It's integrated with the video.