How can I create the HD 720P video file with Video Studio X2

[ken58]

Your 22.48 mbps places this video in the High Definition league. For that you need a High Definition player such as WinDVD (Blue Ray). Standard Definition Video (the stuff that plays in Windows Media Player) is measured in kbps

Thank you for the response.

I can play my original video without any problem.
If the video card is good enough to play it, it should work.

I think I need MPEG2 codec.

[Ken Berry]

You have the mpeg-2 codec -- it is installed as part of VS.

And it is not only the graphics card which counts in playing back video, and especially high definition video: it is also the processor. Your original video is AVCHD and for that you need at least a Core 2 Duo to be able to play properly and smoothly. You have not filled in your system button so we have no idea what kind of computer you are using...

[mitchell65]

I imported a short video clip HD (1280x720) 720P.

Original Video

Format: Photo JPEG

But I thought a JPEG was a still image? Where did this "video clip" come from?

[Ron P.]

Photo JPEG is identical to MJPEG (Motion JPEG), however the MJPEG has identifiers built in it to support the different capture cards. Photo JPEG is used not only for still images, but also for high-quality video files. It is supported by QuickTime and Video For Windows (VFW) architectures.

Source: http://www.siggraph.org/education/mater ... /JPEG.html

* The Photo-JPEG codec requires significant amounts of CPU power and is not well suited to CD-ROM or higher data rates, except when assisted by a hardware capture card.
* Large image and/or high frame rate movies usually don't play smoothly.
* If the same file is saved multiple times, the JPEG artifacts may build up and become objectionable.

[mitchell65]

Thanks again Ron for the explanation. I get quite depressed at times when the realisation hits me as to how little I know of this subject and will I ever feel ever so slightly confident working with it. One tiny point on this subject though. It seems as if the Image JPEG codec, being an HD codec, has somewhat limited merits and as the 1280 x 720 frame is not considered a standard HD frame why do you think they should be used together in the first place? Or is that another very naive question?

[Ron P.]

No not naive at all, however one that a lot of people ask. I think it's just another format that was developed along the way. I think the key to the Photo JPEG is that it is better suited for PC/Internet usage. You've probably noticed that videos streamed over the internet tend to have odd frame sizes compared to those that are used for producing DVDs. Oddly enough, MJPEG, was a predecessor to DV (avi). MJPEG provides very good SD quality. The MJPEG is generally wrapped in either MOV or AVI containers.

[ken58]

You have the mpeg-2 codec -- it is installed as part of VS.

And it is not only the graphics card which counts in playing back video, and especially high definition video: it is also the processor. Your original video is AVCHD and for that you need at least a Core 2 Duo to be able to play properly and smoothly. You have not filled in your system button so we have no idea what kind of computer you are using...

Thank you for the response.

Sorry, I should have mentioned my system.
My original video is motion Jpeg.

My system is 2 years old computer.
Window Vista Home Premium
IntelCore2 Quad CPU Q6600 2.4 GHz
Memory 3GB 32-bit operation
Graphic Card NVIDIA GeForce 8500 GT

I am mainly interested in high quality short video clip.
I use digital camera to take video (recent camera can take short high quality video clip)

[ken58]

But I thought a JPEG was a still image? Where did this "video clip" come from?

As Ron explained, it is a Motion JPEG.
Recent digital camera can take a short high quality Motion JPEG video.
As is pointed out by Ron, it is better suited for PC/Internet usage.
I am mainly interested in high quality short video clip.

[ken58]

I created the video with the ¡§Same as Project¡¨ setting.
It was just a test. I did not edit the video at all.
Viewed with the Project Play back.

The picture quality of the output video is very poor.
It was fluctuating.
Am I doing something wrong ?
How can I get reasonable picture quality?


Original Video

Format: Photo JPEG
Data rate : 22.48 mbit/sec
FPS : 30, 1280 x 720
Short video clip about 1 minute


The property setting of Video Studio:

NTSC non-drop frame (30 fps)
MPEG files
24 bits, 1280 x 720, 30 fps
Lower Field First
(MPEG-2), 16:9
Video data rate: Variable (Max. 22.48 mbps)
Audio data rate: 224 kbps
MPEG audio layer 2, 48 KHz, Stereo

The picture quality of the output video is very poor.
It was fluctuating.
Am I doing something wrong ?
How can I get reasonable picture quality?

Any suggestion is greatly appreciated.

[Ron P.]

If you're wanting to produce a short video for the internet, or just viewing on your home PC, try changing the field order from Lower Field First (LFF) to Frame Based. Frame Based is a form of de-interlaced video, whereas the LFF and UFF are interlaced, and intended for viewing on older televisions that uses interlaced video. The newer LCD, Plasma sets are designed more for progressive scan, or non-interlaced video.

Also go into your Project Settings, and uncheck the box beside the option Perform non-square pixel rendering. This is also meant for video files that are meant to be viewed via DVD on televisions, not PCs. Computers use square pixels. Finally in your Preferences, locate on the Edit tab, Resampling Quality, and change it from the default of Better to Best.

[ken58]

If you're wanting to produce a short video for the internet, or just viewing on your home PC, try changing the field order from Lower Field First (LFF) to Frame Based. Frame Based is a form of de-interlaced video, whereas the LFF and UFF are interlaced, and intended for viewing on older televisions that uses interlaced video. The newer LCD, Plasma sets are designed more for progressive scan, or non-interlaced video.

Also go into your Project Settings, and uncheck the box beside the option Perform non-square pixel rendering. This is also meant for video files that are meant to be viewed via DVD on televisions, not PCs. Computers use square pixels. Finally in your Preferences, locate on the Edit tab, Resampling Quality, and change it from the default of Better to Best.

Thank you very much Ron.
They were very useful.

However, the video was still fluctuating in the project play back,
as if it was in water.

Thank you

Another question is
How ca I use the MPEG2 codec of VideoStudio in Windows Media Player or RealPlayer?

[jellyrock]

I don't know if you're still looking for replies but in x3 the only way I could make the user defined frame size work is by going to project properties and changing the file edit format to AVI instead of the default MPEG. Then you can choose edit, general tab, and select user defined frame size.

Hope this helps.

Tony

JellyRock Total Web