Frage von mwfun:
Hello!
I have created an After Effects Project in format 720x576 PAL 16:9 D1/DV. Now I want to export this with the above settings. Then I added it s.die Reder list and unikomprimiert as Quick Time Movie rendered.
The movie is now a little upset. Then I add the movie into the Media Encoder and export the movie to the format of MPEG 2 with the following settings:
PAL, 1920x10880, 25 (fps), top, quality 4.0
VBR, 1 pass, target 30 min 30 Max 50 Mbit / s - The film is now back in 16:9 format but I have above and below a small black border.
Now my question: Why do I have above and below this boundary, what am I doing wrong?
Thank you for your answers.
Markus
Antwort von Marco:
Because the aspect ratio of 16:9 PAL is not the same for the HD aspect ratio is. In fact, PAL is not in the correct widescreen 16:9. The difference leads to the formation of edge you described.
Marco
Antwort von deti:
According to ITU-R BT.601 is the PAR (pixel aspect ratio) in the case of 16:9 with PAL (704x576): (16 / 9) / (704/576) = 16/11 = 1.45 - or am I wrong? This has nothing to do with the aspect ratio (DAR) ...
Deti
Antwort von mwfun:
But I have to create the file as the default 720x576. What exactly should I do differently now?
Antwort von robbie:
Gibts with you perhaps in the render settings any presets which are denominated in IMX50?
MPEG2 30-50Mbit / s 4:2:2 P @ ML Iframe only would indeed be quite fine IMX same time ....
Antwort von mwfun:
Thank you for your quick response. No, unfortunately I found the setting IMX50 nowhere. Where should I stand it?
Antwort von Marco:
"It has therefore the aspect ratio (DAR) to do with anything" Not directly, but in this case, the resulting aspect ratio, which is between PAL widescreen and HD (1920x1080) differs slightly, of importance.
Marco
Antwort von Taunus:
Thank you for your quick response. No, unfortunately I found the setting IMX50 nowhere. Where should I stand it? The normal Resolutionvon Pal signal has a 768 x 576 square pixels.
The DV signal Pal 720 x 576 square pixels. So a different Pixel Aspect rate.
The HD signal is 1920 x 1080 pixels square again!
Antwort von WoWu:
@ Markus
You create your AE Project already wrong. If you want to get a DV signal with rectangular pixels to square pixels, you must create a project with 788 x 576 and the rausrendern.
(768 you take only if you come from an analogue PAL jellyfish, because the images are only 702x576 as large)
Your Project is now too small and horizontally if it is to be behind rausgerendert in the correct aspect ratio, he takes to the small size (720 instead of 788) as "16" and expects the "9" (in the ratio).
Which is then unfortunately too small.
Mach 788 with and everything is right again.
(ITU-R BT.601 (digital SD) 720 x 576 (5:4 = 1: 0.8))
Antwort von Marco:
.
Antwort von Marco:
What would be the correct values for PAL 4:3, however.
Marco
Antwort von WoWu:
788 is not PAL.
768 would be PAL.
Antwort von Marco:
It is more about whether 4:3 or 16:9. With 788x576 it is indeed 4:3.
Marco
Antwort von WoWu:
Then I somehow did not understand his answer :-( (
It does come of 720x576 and will obviously then with
PAL, 1920x10 (8) 80, out again, with the course was neither PAL (DV) to do something now even with PAL (HD) has. But in any case it does come to Q nQ of pixels and is replaced by a horizontal resolution too small, otherwise he would have been vertical but no missing pixels??
But, as I said, then I figure it might not be so sure what he wants for now really.
Maybe next time
:-)
Antwort von Marco:
"Otherwise he would have no missing pixels vertically yet??" It's about the transformation of 16:9 SD (PAL DV) to HD.
Now, if of the usual SD Resolutioneines 16:9 format (720x576 pixels with corresponding rectangular or square pixels with 1048x576 is) expected to HD, missing top and bottom a few lines, because the aspect ratio of 16:9 SD (with the above resolution ) and HD (1920x1080) do not match exactly.
The HD-Resolutionmüsste probably be 1920x1058, so that the SD would fit 16:9 Picture borderless. The missing row adds the black edges, which can only be avoided by using the picture is slightly distorted, or by increasing and is gecroppt.
Most of the Programs which, if such a change no black edges distort the picture slightly auto. It is hardly noticeable to anyone.
Marco
