mpeg2 program stream 720×576 anamorphic results in 720×404 ???

[Jeremy Garchow]

[Mark Palmos] “Compressor says 720×576, but when it renders it comes out 404 pixels high?? “

Where, in Quicktime? If so, it’s quite possible that Quicktime is reading the anamorphic flag and dislaying your movie 720×404, but in reality your file really is 720×576 anamorphic. It happens with 16×9 DVDs as well.

Jeremy

[Mark Palmos]

Hi Jeremy,
thanks for the quick answer.
Yes, I see the 720×404 in both QT player and VLC player, as well as when I command-I to see the info about the file.
I have tried the 720p file in compressor directly and also tried putting that file into FCP into an anamorphic SD timeline… same result.

sigh.
tick tick…

[Jeremy Garchow]

Are you sure you have the output set to 720×576?

[Mark Palmos]

yep, 100% sure, strangely with mpeg2 there is no choice of geometry pixel aspect, it is greyed out, but here is the copy and pasted detail… tx again mate.

Name: Program Stream
Description: MPEG-2 Program Stream with MPEG audio at 48 kHz. Settings based off the source resolution and frame-rate.
File Extension: mpeg
Estimated file size: 103.81 MB
Type: MPEG-2 program stream
Video Encoder
Format: M2V
Width and Height: Automatic
Selected: 720 x 576
Pixel aspect ratio: PAL CCIR 601 (16:9)
Crop: None
Padding: None
Frame rate: (100% of source)
Selected: 25
Frame Controls: Automatically selected: Off
Start timecode from source
Aspect ratio: Automatic
Selected 16:9
Field dominance: Automatic:
Selected Progressive
Average data rate: 7.2 (Mbps)
1 Pass VBR enabled
Maximum data rate: 8.5 (Mbps)
Best motion estimation
Closed GOP Size: 12, Structure: IBBP
Audio Encoder
Format: MPEG
Sample Rate: 48.000kHz
Channels: 2
Bits Per Sample: 16

[Michael Sacci]

Bring the file back into FCP and check the pixel dimensions in the bin.

[Jeremy Garchow]

If it’s set, then you are good. It’s Quicktime that is at fault. I assume you are sending this for a TV transport of some sort? if so, there’s no real way to check it unless you have a hardware player. Your settings look correct.

Jeremy

[Mark Palmos]

Ok thanks guys,
I will send the file to myself and check on my trusty PC when I get home.
It is for playback off some Hardware player, so I reck it will be fine, even if it is 404 pixels high.
I will report back as to what the PC says the dimensions really are… and I will try it in FCP, or even mpeg streamclip to see the size too.
Till later
Rendering away… again…
Mark.

[Ed Dooley]

I get the same thing all the time. It’s QTs problem.I’m compressing a 1280×720 16:9 video right now to MPEG-2, and when I open it in QT it says it’s 720×404, which it is not. Don’t worry.
Ed

[Rafael Amador]

Hi Mark,
Don’t worry. Your MPEg~2 is perfectly 16×9.
Open the clip in MPGStreamclip and you will see that the size is 720×576.
I’ve sow that long ago but I think that’s just the QT Visual Setting.
Cheers,
Rafael

http://www.nagavideo.com

(and here some clips for the friends: https://www.vimeo.com/2694745 )

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[Mark Palmos]

Thanks Raffa, you are quite right, it is!
Thank god for MPEGStreamclip…