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Cant change TV format
chris [Avatar]
Newbie Joined: May 10, 2009 00:44 Messages: 6 Offline
[Post New]
Hi I just downloaded ver. 7 and stuck straight away.

I have a Sanyo HD2000 camera that records at 1080p x 1920 60fps and when I drop a clip in it pops up an error box saying my TV Format is wrong and that my clips will be degraded if I continue.

If I go into preferences I can only choose either

PAL 25 frames or NTSC 25 frames ??? Something wrong there thats like dinosaur camera!

How do I set up 1080p x 1920 60fps

Thanks
[Post New]
NTSC should be 29.97 (or 30fps) . Are you sure it says 25 for NTSC?
chris [Avatar]
Newbie Joined: May 10, 2009 00:44 Messages: 6 Offline
[Post New]
yes sorry 30fps, any ideas how I can get 60fps
[Post New]
Unfortunately PD won't produce in 1080p60 so the final product (assuming you are going to Blu-ray format) will be 1080i60 or 1080p30.

However if you set the format as NTSC the 30 fps will make the final file motion smooth with no frame dropping.

Perhaps PD8 will have full HD support as there are a few consumer level cameras appearing on the market now.
Dafydd B [Avatar]
Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline
[Post New]
HI,
I've a Sanyo Xacti HD2000 - sitting in front of me waiting to be played with

mp4's are recorded at 29.97 frames per second.

If you're in a Pal set up (as I am) then the TV conflict notification will display when you bring video into PD - that's pretty standard. Please uncheck the always notification and click OK.

Video files used to display in the timeline according to frame rate and this would mean a difference of 5 frames if one imported a NTSC video into a PAL. BUT this is no longer the case, as the "block" of video imported reflects the length of clip. The bit rate per frame alters for video produced in PAL but the overall rate is the same for the whole clip even when comparing NTSC with PAL. Adrian (vn800rider) and I did a fast and dirty experiment with mp4 a little while back. Sorry I've digressed.

Now to 1080p. I did mention in another post using a customised template based on the 720p template for mpegHD - perhaps looking this up in PD7 will do the trick for you.

Like many cameras that have the ability to connect to a TV, one of the menu selections in it asks is what TV format - PAL or NTSC. This does NOT mean the video output is altered and it remains mp4 29.97 frames.

OK, I will play with the Sanyo in a while... and do video recording when my class 6 sdhc card arrives in the post - I've a lower spec card in the Xacti at the moment.

Dafydd

This message was edited 2 times. Last update was at May 10. 2009 06:14

[Post New]
Quote:
Video files used to display in the timeline according to frame rate and this would mean a difference of 5 frames if one imported a NTSC video into a PAL. BUT this is no longer the case, as the "block" of video imported reflects the length of clip. The bit rate per frame alters for video produced in PAL but the overall rate is the same for the whole clip even when comparing NTSC with PAL. Adrian (vn800rider) and I did a fast and dirty experiment with mp4 a little while back. Sorry I've digressed.
Dafydd

Hi Dafydd,
While this is true, if you render a 30fps clip into 25 fps there are still frame changes from the original sequence to maintain clip duration at the new frame rate which still results in noticeable jumping on panning shots. I still maintain if you shoot at 30 fps you should render at 30 fps.

Quote: Now to 1080p. I did mention in another post using a customised template based on the 720p template for mpegHD - perhaps looking this up in PD7 will do the trick for you.
Dafydd

I tried to search but couldn't find the reference. Can you please quickly explain again how you can output 1080p60, Thanks
Dafydd B [Avatar]
Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline
[Post New]
Part 2 - 60fps no not in PD7 - it was intended as a reference to customising a 720p - sorry I should have mention that.

Part 1 - Take a look at the 3 test files yourself - they made interesting reading for me and Adrian.

I don't agree with your assumption of a frame rate causing jerky movements, it used to be the case but now we have blocks of data and the idea of an actual frame has become very blurred. Adrian mentioned to me he has seen jerky movements but it does depend upon what player he used with degrees of of jerkiness for some and others none.

Dafydd
 Filename
pal test mediainfo.txt
[Disk]
 Description
rendered in PD7 to an mpeg file PAL 25fps
 Filesize
2 Kbytes
 Downloaded:
381 time(s)
 Filename
mp4 test mediainfo.txt
[Disk]
 Description
Original 29.97 fps mp4 data
 Filesize
3 Kbytes
 Downloaded:
391 time(s)
 Filename
ntsc test mediainfo.txt
[Disk]
 Description
rendered in PD7 to an mpeg file NTSC 29.97fps
 Filesize
2 Kbytes
 Downloaded:
314 time(s)

This message was edited 3 times. Last update was at May 11. 2009 07:38

Dafydd B [Avatar]
Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline
[Post New]
Thanks Adrian for the information - very interesting reading.
http://www.hdtvfaq.org/hdtv-formats.html

Dafydd
[Post New]
Quote:
I don't agree with your assumption of a frame rate causing jerky movements, it used to be the case but now we have blocks of data and the idea of an actual frame has become very blurred.

Hi Dafydd,
jerky movements with frame rate conversion is not an assumption but a reality for my set up. I am not dissagreeing that AVCHD is not a simple matter of each frame being encoded then decoded for playback. We both know of the complexities of forward and back interpolation using I, B and P slices to recreate fields/frames from data contained in the file BUT it still has an impact if the data was written with 30 slices or 25 slices in it's creation.

The two files linked (if you are interested) have been created by PD. I made a 20 sec clip of an oval motion and rendered to AVCHD at 30 fps. I placed a time code in the corner to help demonstrate.

I then used this file as a "surrogate" clip from an AVCHD camera and rendered it both to 25fps and 30 fps (the links below).

My mediaplayer outputs both 50Hz and 60Hz to my Plasma which accepts both 50Hz and 60Hz.

The 30fps clip plays smoothly using 60hz output.
The 25fps clip is jerky in both 50Hz and 60Hz output.

I maintain that it is best to use a frame rate for production which is comparable to the original frame rate of the files being used.

http://www.4shared.com/file/104817629/3452a5b0/30fps.htm
http://www.4shared.com/file/104818431/7875d8fb/25fps.html
Dafydd B [Avatar]
Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline
[Post New]
OK, I'll take a peek at the links shortly.

CyberLink's R&D are looking into 60p and 60i - sorry no data - just say the issues are being looked at.

Dafydd

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