What is the chance of Getting 50mbps AVCHC? at DVinfo.net

Tim Polster · March 6th, 2010, 08:20 AM

As an Edius user, I am looking forward to the upcoming release which will allow realtime native ACVHD editing.

Since the format looks like it will stay around, what are the chances of a higher mbps number?

Who would create this? Each camera company or is their a source for AVCHD that is a consortium?

Seems like a firmware could upgrade exisiting cameras as the datarate is not very taxing.

It is a nice codec as it is though but there is always room for improvement.

Andy Tejral · March 6th, 2010, 08:26 AM

AVC-Intra is already out there. AVC with only I-frames--kinda like I-frame mpeg. Panasonic is talking about going up to 200mps.

With the quality of the hmc150's 21mps, I doubt there is much quality to squeeze from 50+

Who knows what the future will bring!

Perrone Ford · March 6th, 2010, 08:27 AM

AVCHD is a branded subset of the Mpeg4/h.264/AVC specification. The Canon 5D/7D are already using higher bitrates. The 7D in particular is using about 48Mbps. So you don't have to hope for it. It's already here. Just buy a 7D.

...and make sure your computer is up to it! ;)

Tim Polster · March 6th, 2010, 08:31 PM

I don't mind about the I-frames, and 50mbps AVC Intra is not full raster.

A 35mbps 4:2:2 variant would be nice while still allowing the SDHC cards as a firmware upgrade to the HMC-150.

I have the 5D/7D for still work and have just started testing for video. The files show up as mpeg-4.

I just wonderd if the AVCHD will ever go higher as AVCHD or will it need to be called something else like mpeg-4.

I get spoiled witht the Nano flash and want everything to be high bitrate!

March 6th, 2010, 08:20 AM	#1
Tim Polster Inner Circle Join Date: Dec 2004 Location: Arlington, TX Posts: 2,231	What is the chance of Getting 50mbps AVCHC? As an Edius user, I am looking forward to the upcoming release which will allow realtime native ACVHD editing. Since the format looks like it will stay around, what are the chances of a higher mbps number? Who would create this? Each camera company or is their a source for AVCHD that is a consortium? Seems like a firmware could upgrade exisiting cameras as the datarate is not very taxing. It is a nice codec as it is though but there is always room for improvement.

March 6th, 2010, 08:26 AM	#2
Andy Tejral Major Player Join Date: Jan 2007 Location: New York City Posts: 523	AVC-Intra is already out there. AVC with only I-frames--kinda like I-frame mpeg. Panasonic is talking about going up to 200mps. With the quality of the hmc150's 21mps, I doubt there is much quality to squeeze from 50+ Who knows what the future will bring! __________________ Andy Tejral Railroad Videographer

March 6th, 2010, 08:27 AM	#3
Perrone Ford Inner Circle Join Date: Nov 2006 Location: Tallahassee, FL Posts: 4,100	AVCHD is a branded subset of the Mpeg4/h.264/AVC specification. The Canon 5D/7D are already using higher bitrates. The 7D in particular is using about 48Mbps. So you don't have to hope for it. It's already here. Just buy a 7D. ...and make sure your computer is up to it! ;) __________________ DVX100, PMW-EX1, Canon 550D, FigRig, Dell Octocore, Avid MC4/5, MB Looks, RedCineX, Matrox MX02 mini, GTech RAID, Edirol R-4, Senn. G2 Evo, Countryman, Moles and Lowels.

March 6th, 2010, 08:31 PM	#4
Tim Polster Inner Circle Join Date: Dec 2004 Location: Arlington, TX Posts: 2,231	I don't mind about the I-frames, and 50mbps AVC Intra is not full raster. A 35mbps 4:2:2 variant would be nice while still allowing the SDHC cards as a firmware upgrade to the HMC-150. I have the 5D/7D for still work and have just started testing for video. The files show up as mpeg-4. I just wonderd if the AVCHD will ever go higher as AVCHD or will it need to be called something else like mpeg-4. I get spoiled witht the Nano flash and want everything to be high bitrate!