When to use/not use PAR?
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When to use/not use PAR?
I am trying to encode an animation, but I am mystified by the anamorphic option. The docs basically seem to suggest that it should always be turned on. But when I do this, the animation seems "squished" in the preview.
Am I correct in thinking that this option should only be turned on for non 4:3 sources? If so, shouldn't this be added to the "when not to use" section?
Maury
Am I correct in thinking that this option should only be turned on for non 4:3 sources? If so, shouldn't this be added to the "when not to use" section?
Maury
If you want info on this see http://handbrake.m0k.org/trac/wiki/AnamorphicGuide
?!
Why is it strange that PAR would be on for the Normal preset? Why *wouldn't* you want it on for normal encodes?
Also, there is not one place in the guide where I say it should only be used for outputting to larger displays. Please do not put words in my mouth. I mean, I start the damn thing off by telling you when *not* to use it. And those situations where it shouldn't be used -- the presets for them have it turned off. What is unclear about this?
Whether or not to use anamorphic with 4:3 is entirely dependent on how you view the movies. VLC will display them at 720*540 so yes it's useful there, but QuickTime will display at 640*480 so it's wasteful there.
Why is it strange that PAR would be on for the Normal preset? Why *wouldn't* you want it on for normal encodes?
Also, there is not one place in the guide where I say it should only be used for outputting to larger displays. Please do not put words in my mouth. I mean, I start the damn thing off by telling you when *not* to use it. And those situations where it shouldn't be used -- the presets for them have it turned off. What is unclear about this?
Whether or not to use anamorphic with 4:3 is entirely dependent on how you view the movies. VLC will display them at 720*540 so yes it's useful there, but QuickTime will display at 640*480 so it's wasteful there.
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What do you mean by "normal"? Normal TV signals? Normal DVD's of Bugs Bunny?jbrjake wrote: Why is it strange that PAR would be on for the Normal preset? Why *wouldn't* you want it on for normal encodes?
I'm fairly certain that PAR should be turned off in these cases. But the guide you produced doesn't say that. It says you should turn it off for the iPod or iPhone. The guide is simply not clear. That's why I'm asking; if i was clear, I wouldn't be asking.
DVD's may or may not be encoded using anamorphic frames. If the DVD is not anamorphic, like a TV show, should it be turned on or off? Does it make any difference at all in that case? When I turn it on circles are no longer circular in the Picture Setting preview, which suggests it should not be turned on. But the output file doesn't seem any different when I experimented with it.
So, should it be on or off in these cases? Or does it make no difference at all? In any case, the guide needs to say something about this.
The guide says not to use it on the ipod or iphone. Those have small displays. It didn't confuse me, but I can see why it might confuse others.jbrjake wrote: Also, there is not one place in the guide where I say it should only be used for outputting to larger displays.
Why would QuickTime display a movie at 640*480 that's recorded at 720*540? Do you mean "QuickTime showing the movie on a system with a 640x480 physical display"?jbrjake wrote: Whether or not to use anamorphic with 4:3 is entirely dependent on how you view the movies. VLC will display them at 720*540 so yes it's useful there, but QuickTime will display at 640*480 so it's wasteful there.
Maury
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Thanks for the "help" Lank. You think maybe that was the guide that I was referring to when I said that the guide should mention this?Lant wrote:If you want info on this see http://handbrake.m0k.org/trac/wiki/AnamorphicGuide
Maury
Um I mean exactly what I wrote in the preset's description when I created it: "HandBrake's normal, default settings."Maury Markowitz wrote: What do you mean by "normal"?
So because you're assuming something, and the guide doesn't confirm your assumptions, the guide is unclear?I'm fairly certain that PAR should be turned off in these cases. But the guide you produced doesn't say that. It says you should turn it off for the iPod or iPhone. The guide is simply not clear. That's why I'm asking; if i was clear, I wouldn't be asking.
Simply untrue. All DVDs are anamorphic. When have you *ever* watched a 720*480 frame being displayed?!DVD's may or may not be encoded using anamorphic frames.
But the guide doesn't say not to use them on the iPod because they have small displays! It's about the limits of the device. You can't put 720*480 video on an iPod because it *won't let you*.The guide says not to use it on the ipod or iphone. Those have small displays.
Learn how to read.. I did *not* say the video would be recorded at 720*540. Not at *all*. I said it would be *displayed* at 720*540 in VLC and would be *displayed* at 640*480 in QuickTime. You obviously don't even understand what anamorphic does, so I can see why Lant would assume you hadn't read the guide. Anyone who had should understand that anamorphic is about storing at 1.5:1 and then displaying at different aspect ratios tailored for the content. Do the math. 720*540 and 640*480 are both 4:3 aspect ratios. Either are valid display dimensions. The transformation matrix used for QT goes down, the sar used for VLC goes up.Why would QuickTime display a movie at 640*480 that's recorded at 720*540?
The guide I read a while back over on iLounge said to use a resolution size of no more than 640x(autofill is usually like 352) for iPod touch or iPhone since higher res is just wasted on the 480x320 display. So if it's saying to set the resolution that logically means PAR must be disabled since enabling PAR prevents the user from setting the resolution. So you can imagine the confusion of now reading your guide and comments in this thread that seem to say PAR should be enabled for encoding widescreen DVD movies for iPod/iPhone use. This is also strange because a larger resolution takes up more space and if the higher res isn't going to be useful anyway, it's doubly wasted on a device where storage space is so limited.
If I give you a scenario maybe you can tell me if it should be on or off. This scenario is 100% of what I use Handbrake for:
A widescreen movie DVD being ripped to watch on my iPod touch.
(Batman Begins, Braveheart, Heat, Goodfellas, Ocean's Eleven, Sneakers, you name it).
Do I want it A-PAR on or off?
I imagine since enabling A-PAR removes my ability to resize the video smaller, it's going to be a larger file (both in filesize and resolution) than I need for viewing on my touch.
Thanks
If I give you a scenario maybe you can tell me if it should be on or off. This scenario is 100% of what I use Handbrake for:
A widescreen movie DVD being ripped to watch on my iPod touch.
(Batman Begins, Braveheart, Heat, Goodfellas, Ocean's Eleven, Sneakers, you name it).
Do I want it A-PAR on or off?
I imagine since enabling A-PAR removes my ability to resize the video smaller, it's going to be a larger file (both in filesize and resolution) than I need for viewing on my touch.
Thanks
WTF?yacoub wrote:So you can imagine the confusion of now reading your guide and comments in this thread that seem to say PAR should be enabled for encoding widescreen DVD movies for iPod/iPhone use.
No one has said any such thing.
I have no idea how I could make this any clearer than having at the top of the guide:
"Right off the bat, to save people time, here are situations when you DON'T want to use anamorphic encoding:
1. When you want to watch your movies on an iPod "
Why you're even asking if you should turn PAR on for an iPod Touch encode, I don't know. You should be using the preset. It's not on in the preset. Why would the preset have it off, if you're supposed to use it?
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Regarding iPod resolution
Hey folks,
So I have a video iPod ( the 5G I think they're called). Just to make you understand, I screwed up a video the other day and the height turned out to be tiny bit over 480 pixels.
So yeah anamorphic's not causing a problem because it's a small creen, but iTunes would simply NOT copy the file onto the iPod (yeah i know they are other progz out there to put files on the iPod but I personnally manage it all from iTunes). So point is, if you have a video whose width is larger than 640 OR a hieght over 480 is will NOT work for the iPod. So exit Anamorphic. That's all.
Personnal comment: past the limitation (640x480....which is more than enough for a 320x240 screen), i think the videos look gorgeous on the iPod. The only prob is the sound (not loud enough), but that's been said before.
So I have a video iPod ( the 5G I think they're called). Just to make you understand, I screwed up a video the other day and the height turned out to be tiny bit over 480 pixels.
So yeah anamorphic's not causing a problem because it's a small creen, but iTunes would simply NOT copy the file onto the iPod (yeah i know they are other progz out there to put files on the iPod but I personnally manage it all from iTunes). So point is, if you have a video whose width is larger than 640 OR a hieght over 480 is will NOT work for the iPod. So exit Anamorphic. That's all.
Personnal comment: past the limitation (640x480....which is more than enough for a 320x240 screen), i think the videos look gorgeous on the iPod. The only prob is the sound (not loud enough), but that's been said before.
I already answered your question. It's not my fault you didn't like the answer:Maury Markowitz wrote: *sigh*
Should I use this option on 4:3 video, or not? Yes or no?
"Whether or not to use anamorphic with 4:3 is entirely dependent on how you view the movies. VLC will display them at 720*540 so yes it's useful there, but QuickTime will display at 640*480 so it's wasteful there."
And as sdm pointed out in the relevant thread in the development forum, if you scale up for display on an hdtv or something, it's the same result regardless.