AVCHD Lite Format

Serge Victorovich · March 14th, 2009, 03:28 AM

General

Complete name : AVCHDlite.MTS
Format : BDAV
Format/Info : BluRay Video
Overall bit rate : 15.2 Mbps
Maximum Overall bit rate : 18.0 Mbps

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Bit rate : 14.4 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16/9
Frame rate : 59.940 fps
Standard : NTSC
Resolution : 24 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.261

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Duration : 28s 500ms
Bit rate mode : Constant
Bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : L R
Sampling rate : 48.0 KHz

Paulo Teixeira · March 30th, 2009, 04:30 PM

Here’s a link to more samples:
http://forums.dpreview.com/forums/re...ssage=31444913

Paulo Teixeira · April 3rd, 2009, 12:50 AM

Lots of Photo and video samples here:
TZ7 Test - Folder Shared from Box.net - Free Online File Storage

I got it from this thread:
TZ 7 samples Please: Panasonic Talk Forum: Digital Photography Review

Enjoy

Dave Pearce · April 30th, 2009, 10:06 AM

Ive got a few clips here. The TZ7 file are tagged as such.
Dave pearce's videos on Vimeo

I love this cam for its size and ease of use. since i got it nearly two weeks ago i haven't used my HF10. Im not saying its better but im impressed with the quality considering the size and the fact that im more likely to have it with me.

Im struggling a bit getting decent output from Vegas at the moment but im getting there.

Dave.

Steve Mullen · May 1st, 2009, 05:00 AM

Quote:

Originally Posted by Dave Pearce

Ive got a few clips here. The TZ7 file are tagged as such.
Dave pearce's videos on Vimeo

I love this cam for its size and ease of use. since i got it nearly two weeks ago i haven't used my HF10.

So how do you lock AF/AE when shooting video?

Dave Pearce · May 1st, 2009, 05:09 AM

Quote:

Originally Posted by Steve Mullen

So how do you lock AF/AE when shooting video?

Buggered if i know ;-)

You cant as far as i can see lock AE. You can lock focus as it has two modes, continuous and off so it will only focus once, when you press the button. You do have EC though.

Now i would never suggest this is even close to my HF10, control wise but at least this does have EC. On my HF10 you can lock exposure but then you loose AE.

Dave.

Steve Mullen · May 1st, 2009, 05:50 PM

Quote:

Originally Posted by Dave Pearce

You can lock focus as it has two modes, continuous and off so it will only focus once, when you press the button.

Do you mean half-press? OK -- that will work fine. But, does the half-press also set exposure? And, will that exposure remain constant while shooting video?

Dave Pearce · May 2nd, 2009, 03:00 AM

Quote:

Originally Posted by Steve Mullen

Do you mean half-press? OK -- that will work fine. But, does the half-press also set exposure? And, will that exposure remain constant while shooting video?

With video on this camera there is no half press. Its actually a button on the back of the camera that you just press and the video starts recording.
You can set the record mode to just focus the once when the button is pressed or to keep using AF (and this actually works ok most of the time) but the exposure always seems active as far as i can see. In fact once recording the only manual adjustment on the camera is the zoom control.

Dave.

Steve Mullen · May 2nd, 2009, 06:01 AM

Pana really screws you with this camera.

Yes, it uses AVCHD Lite which must be 720p60.

BUT, in the fine print they note the CCD output is only 30p!

So they simply toss two copies of each CCD read-out into a p60 data stream.

If you want p30 you can shoot Motion-JPEG and get the same fps without the hassle of AVCHD.

Dave Pearce · May 2nd, 2009, 06:13 AM

Shooting MJPEG has slightly less image quality, is limited to 8mins 20 secs (2GB) file size and audio is not as good (i believe).
Camera aside i dont really have any problems with AVCHD lite. Im in the UK so for me its 50P (CCD output is 25fps) and Vegas handles it fine (now that i know to disable re sample).
In fact i dont come in to contact with any PC's/ that cant handle AVCHD these days. Even Windows 7 supports it.
I find there is a lot of people reading old posts about how much hassle AVCHD is. Its almost become a must that someone posts about how dificult it is to work with. Its been around for a while now and you dont need a top end PC to use it, most modern PC's will at least play back the files these day.
Most of the complaints seems to come from Mac users, of which im not one of them.

Just my opinion though.

Lets keep it in mind this is still a P&S we are talking about and we should look on it as such.

Dave.

Paulo Teixeira · May 3rd, 2009, 10:50 PM

If this isn’t fake than I hope the US gets the same promotion.
Current: Electrical, Electronics and Appliance Industry News and Issues - Panasonics giving customers a 1 in 5 chance to win a VIERA LCD TV

Steve Mullen · May 3rd, 2009, 11:23 PM

The is an advantage to Motion-JPEG. Under OS X, AVCHD gets converted to AIC losing a generation.

But, the real issue is that images are only captured at 25fps or 30fps. This ain't 720p50/720p60!

Is each frame simply repeated twice or is some kind of interpolation used. For example:

A B C D
a ab b bc c cd d

A long time ago I realized the long GOP encoding could create a "tween" image. Using two images 1/30th second apart, when motion vectors are generated the values can be halved to generate a frame 1/60th second between the two real images.

If only 25/30fps, the shutter-speed must be 1/25th or 1/30th which is impossibe.

What is you experience if you stand close to a hiway with rapidly moving cars? Do they move smoothly or in tiny jerks?

http://exposureroom.com/members/DVC.aspx/videos/

March 30th, 2009, 04:30 PM	#32
Paulo Teixeira Trustee Join Date: Dec 2005 Location: Massachusetts Posts: 1,773	Here’s a link to more samples: http://forums.dpreview.com/forums/re...ssage=31444913 __________________ https://www.youtube.com/user/PhotoVi...esEtc/featured https://www.pond5.com/artist/paulot Last edited by Paulo Teixeira; March 30th, 2009 at 10:35 PM.

April 3rd, 2009, 12:50 AM	#33
Paulo Teixeira Trustee Join Date: Dec 2005 Location: Massachusetts Posts: 1,773	Lots of Photo and video samples here: TZ7 Test - Folder Shared from Box.net - Free Online File Storage I got it from this thread: TZ 7 samples Please: Panasonic Talk Forum: Digital Photography Review Enjoy __________________ https://www.youtube.com/user/PhotoVi...esEtc/featured https://www.pond5.com/artist/paulot

May 2nd, 2009, 06:01 AM	#39
Steve Mullen HDV Cinema Join Date: Feb 2003 Location: Las Vegas Posts: 4,007	Pana really screws you with this camera. Yes, it uses AVCHD Lite which must be 720p60. BUT, in the fine print they note the CCD output is only 30p! So they simply toss two copies of each CCD read-out into a p60 data stream. If you want p30 you can shoot Motion-JPEG and get the same fps without the hassle of AVCHD. __________________ Switcher's Quick Guide to the Avid Media Composer >>> http://home.mindspring.com/~d-v-c

May 3rd, 2009, 10:50 PM	#41
Paulo Teixeira Trustee Join Date: Dec 2005 Location: Massachusetts Posts: 1,773	If this isn’t fake than I hope the US gets the same promotion. Current: Electrical, Electronics and Appliance Industry News and Issues - Panasonics giving customers a 1 in 5 chance to win a VIERA LCD TV __________________ https://www.youtube.com/user/PhotoVi...esEtc/featured https://www.pond5.com/artist/paulot

May 3rd, 2009, 11:23 PM	#42
Steve Mullen HDV Cinema Join Date: Feb 2003 Location: Las Vegas Posts: 4,007	The is an advantage to Motion-JPEG. Under OS X, AVCHD gets converted to AIC losing a generation. But, the real issue is that images are only captured at 25fps or 30fps. This ain't 720p50/720p60! Is each frame simply repeated twice or is some kind of interpolation used. For example: A B C D a ab b bc c cd d A long time ago I realized the long GOP encoding could create a "tween" image. Using two images 1/30th second apart, when motion vectors are generated the values can be halved to generate a frame 1/60th second between the two real images. If only 25/30fps, the shutter-speed must be 1/25th or 1/30th which is impossibe. What is you experience if you stand close to a hiway with rapidly moving cars? Do they move smoothly or in tiny jerks? http://exposureroom.com/members/DVC.aspx/videos/ __________________ Switcher's Quick Guide to the Avid Media Composer >>> http://home.mindspring.com/~d-v-c Last edited by Steve Mullen; May 3rd, 2009 at 11:57 PM.

March 14th, 2009, 03:28 AM	#31
Serge Victorovich Major Player Join Date: Oct 2005 Posts: 376	General Complete name : AVCHDlite.MTS Format : BDAV Format/Info : BluRay Video Overall bit rate : 15.2 Mbps Maximum Overall bit rate : 18.0 Mbps Video ID : 4113 (0x1011) Menu ID : 1 (0x1) Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.0 Format settings, CABAC : No Format settings, ReFrames : 1 frame Bit rate : 14.4 Mbps Width : 1 280 pixels Height : 720 pixels Display aspect ratio : 16/9 Frame rate : 59.940 fps Standard : NTSC Resolution : 24 bits Colorimetry : 4:2:0 Scan type : Progressive Bits/(Pixel*Frame) : 0.261 Audio ID : 4352 (0x1100) Menu ID : 1 (0x1) Format : AC-3 Format/Info : Audio Coding 3 Duration : 28s 500ms Bit rate mode : Constant Bit rate : 192 Kbps Channel(s) : 2 channels Channel positions : L R Sampling rate : 48.0 KHz

April 30th, 2009, 10:06 AM	#34
Dave Pearce Regular Crew Join Date: May 2008 Location: London, UK. Posts: 43	Ive got a few clips here. The TZ7 file are tagged as such. Dave pearce's videos on Vimeo I love this cam for its size and ease of use. since i got it nearly two weeks ago i haven't used my HF10. Im not saying its better but im impressed with the quality considering the size and the fact that im more likely to have it with me. Im struggling a bit getting decent output from Vegas at the moment but im getting there. Dave.

May 2nd, 2009, 06:13 AM	#40
Dave Pearce Regular Crew Join Date: May 2008 Location: London, UK. Posts: 43	Shooting MJPEG has slightly less image quality, is limited to 8mins 20 secs (2GB) file size and audio is not as good (i believe). Camera aside i dont really have any problems with AVCHD lite. Im in the UK so for me its 50P (CCD output is 25fps) and Vegas handles it fine (now that i know to disable re sample). In fact i dont come in to contact with any PC's/ that cant handle AVCHD these days. Even Windows 7 supports it. I find there is a lot of people reading old posts about how much hassle AVCHD is. Its almost become a must that someone posts about how dificult it is to work with. Its been around for a while now and you dont need a top end PC to use it, most modern PC's will at least play back the files these day. Most of the complaints seems to come from Mac users, of which im not one of them. Just my opinion though. Lets keep it in mind this is still a P&S we are talking about and we should look on it as such. Dave.