progessive scan on dvd/avchc/blurays?

[monjanse]

How can i change from lower/higher field first, to progressive/framebased in dvd/avchc/bluray autorising?

[Ken Berry]

I am not sure that you can, if you are talking about doing it in the burning module. However, it is easy enough if you follow a slightly different workflow. In the Editing module, if your video in the timeline is Upper (or Lower) Field First but you want your output to be fully progressive, then instead of jumping straight to the burning module (Share > Blu-Ray, or Share > DVD for example), you instead first render your project to a new video file by choosing Share > MPEG-2 or Share > AVCH/H.264. Then you go to Profile under the choice of format and click on the downward pointing arrow to its right. All the possible preset formats will be listed. Those which have an 'i' beside them indicate they are Upper (or Lower) Field First, while those with 'p' are fully progressive. So you would choose one of them. If you want to further change the settings to Custom ones, then click on Share > Custom instead. The small cogwheel icon to the right of the downward pointing arrow opens an Options box, and on the first General tab, you can change Frame Type to Frame Based which, as you know, is the same as Progressive.

[monjanse]

Ok. Thank you.

[testearns]

Ken-
I have the same question. I can render the .mp4 file as frame based, but how do I burn a Blu-ray disc frame based? The only options are upper or lower field. This also produces some unacceptable interlacing artifacts when we watch it.
I am using x8.5 Ultimate.
-Terry

[lata]

Hi Terry

You should convert the file to AVC/H.264 1280 x 720 x 50p

Using 1920 x 1080 only supports interlaced video.

Then start a new project, nothing in the timeline
Share Create Disc - Bluray - opens the burner module.
Top left for add video.

Make sure Do Not Convert Compliant ... is checked via settings cogwheel.

Note when you burn the file the process starts with Convert Menu and not Convert Title.

If you choose to create a Bluray folder you can then view the Stream files to check their properties as being Frame Based.

[Ken Berry]

Just to explain a little bit more, the international Blu-Ray standard only permits BD discs using 1920 x 1080 if they are interlaced, and in effect that means Upper Field First (since just about every camera I have heard of produces AVCHD using that field order). But under the international standard, the only Progressive (Frame Based) video which can be burnt to BD disc is 1280 x 720p. The quality is still very good though, and for fast action on BD disc, notionally better than 1920 x 1080i video which can appear more flickery in fast action sequences. 1280 x 720p indeed used to be the international HD standard, and remains so in some parts of the world.

I'd like to think the international might change some time soon, but I can't say I have heard when that might happen...

[testearns]

Thanks Trevor and Ken-
The understanding of the international standards helps.
so to make sure I understand, the highest resolution progressive scan you can burn to any disc is 1280x720p?
Thanks again.
-Terry

[Ken Berry]

That's right...

[testearns]

Thanks again.

[Curious]

Additionnal comment:

When i am expecting to output for bluray medium, i setup my sony camcorder to record directly in 1920 X 1080i 59.97 Hz in North America, instead of the same resolution with progressive video (or also use 1280 x 720p if the camcorder supports it) . This avoids any kind of field conversion (example recorded 1920 X 1080p from the camcorder and need 1980 X 1080i for bluray) , which is always better because field conversion is never perfect...

[May17]

Hi everybody,
I got kinda of problem with progressive footage and creating a blueray with VS X8, now with VS X9 is the same.
For the most I shoot video at 50p so when I want to create a bluray disc the only option that VS gives are upper or lower field at 25fps and the video produced of course was bad expecially on moving subjects. If I shoot video at 50i the video will be ok cause the frame rate don't change.
If I instead want to create a file and I choose same as the first clip, VS create a file at 50p

By the way I also use another corel software (Pinnacle studio 19) and this allow to create bluray disc at 50p, 1920x1080 as well as 1280x720.

So what I do is I create the file video with VS and then I use this file on pinnacle studio 19 and create the bluray at 50p

[lata]

Hi May17

The Bluray standard for burning a disc uses

1920 x 1080 x 25 fps (50i) interlaced. (60i for Ntsc)
1280 x 720 x 50p progressive (60P for Ntsc)

Not sure about 1440 x 1080 frame order but think interlaced.?


You can check the disc properties by accessing the disc, stream folder, accessing the actual files.

It does not matter which program you use those properties will be used to burn a BD

You cannot burn a BD using 1920 x 1080 x (50p) it has to be interlaced.
You may be able to add that type to Pinnacle but the burn process will convert to 25fps.

[May17]

Hi Lata thanks for your post.
The fact is that the camcorder (Canon Legria HF-G30) can shoot at 50p which says is the best quality video so I started to shoot in this mode having then those problem for creating a bluray. But honestly 50i or 50p I don't really see any different when played on tv by a bluray player so I think from now on I will always shoot at 50i. To be true I haven't tested on Pinnacle to create a BD 1920x1080 50p because I registered the software and activate the bluray only yesterday and since than I did AVCHD disc, and in the setting panel as 50p there was only 1280x720. But now with the bluray activated there are more option, there is also 1920x1080 at 24p. I will try the option 1920x1080 50p from a 50p file and see if the frame rate change when burn the disc.
The main problem I encountered on my brand new VS X9 is this: http://forum.corel.com/EN/viewtopic.php?f=1&t=59784
I just installed and registered the software and installed the updates and also bought the extra blu ray plug in.
I wrote to corel for this problem, let's see what happen, in the mean time if there would be some help here, I would really appreciate.
Thanks again

[lata]

Hi May17

Some comments….

First I would suggest you create a Bluray Folder rather than a Bluray disc, at least whilst testing, that way you don’t create those coasters.
The process is the same except the files are saved to the Hard Drive rather than a disc.
You can easily locate the Stream folder containing the video and check the properties to find that 25fps (50i) is used.

If you record using 25fps the data rate will be approx. 16 to 18Mbps, creating a 60 minute file at 8Gb ish, at least that’s what my Panasonic uses -- 16800Kbps

I always convert the project to a compliant Bluray file using Share Same as First Clip or Same as project. That uses the original files properties, yes I know they indicate AVCHD but are indeed Bluray Compliant.
I then start a new project simply to clear the timelines, then Share create disc Bluray – opens the burner module, now add the compliant video file.

When I finally hit Burn button the process starts with Convert Menu, if it shows Convert Title then the video/project is being converted / rendered, not what we want.
If the original video is 50p - - not a compliant video then Convert Title will be used. Rendering the project using the properties set in Project Settings Cogwheel.

OK so you add a compliant file, try to change the settings data rate the green bar does not change, odd you may think?
The Do Not Convert Compliant files being ticked stops that, deselect that and the Green bar should change as you change the data rate. You are now forcing the program to convert a compliant file, not something you would normally do, except when the file is oversized? Hope that makes sense......

Quality differences….
I have recorded to 50i and 50p 1920 x 1080
Converted the 50p to 50i and also to 1280 x 720 at 50p just to check quality.
Like you I do not see that much difference although very difficult to compare?

Preferences - edit tab( F6) please set "best" as the resampling option, may improve quality of renders?

I do a little wildlife recordings and do use 50P just to increase the frame rate.
Of course internet / pc playback would be best in 50P

And to be honest think video studio handles 50P easier than 50i, playback and editing seems easier and I find I do not have to use Smart Proxy, pc being a little old and slow.

But burning a disc using 1920 x 1080 has to use 25fps.

[Ken Berry]

I think the difference between 50i and 50p (60i/60p) will be most noticeable in fast motion shots, with 50p looking smoother.