Re: 320x240 movie doesn't show in full screen
From: John (suck_me_at_msn.com)
Date: 07/10/04
- Next message: kl: "mpg file conversion from PC->pocket PC"
- Previous message: Jeremy Stanley: "Why is there a distinction between "Work" and "The Internet"?"
- In reply to: MS: "Re: 320x240 movie doesn't show in full screen"
- Messages sorted by: [ date ] [ thread ]
Date: Fri, 9 Jul 2004 21:46:03 -0400
Thanks man for a detailed explanation...
" MS" <ms@nospam.com> wrote in message
news:OGOIz0dZEHA.2972@TK2MSFTNGP12.phx.gbl...
> WME probably reads what is the aspect ratio of your original video, and
> takes that into account in making the final movie. For instance, if your
PPC
> screen is 320x240 like mine is (and I think most are), you would like a
> movie to fill that screen (landscape mode, of course), as I do.
>
> 320x240 is the ratio 4:3, same as a standard TV screen. However, if the
> original on the DVD is wide screen, like 16:9, the program creating the
> movie file will take that aspect ratio into account, so that the movie is
> not distorted, and you will end up with something like (if 16:9, there are
> actually some different wide screen rations) 320x176.
>
> If the program changed the aspect ratio, stretching the height of the film
> while keeping the width the same, the picture would be all distorted,
> stretched longer.
>
> I don't like that result though (widescreen on PPC) either. On a TV or
> computer screen, I don't mind the black space at top and bottom, but the
PPC
> screen is so small, I'd rather fill it up with the picture, full screen,
no
> blank space at top and bottom.
>
> There are only two ways to deal with this. One is to crop the sides of the
> movie before you encode it, (perhaps you could do that with the Intervideo
> program you use, I'm not familiar with it), so that the width/height ratio
> is 4:3. Crop an equal amount off each side. If the movie you start with
now
> has a 4:3 aspect ratio, and you set 320x240, you should actually get a
video
> that fills your PPC screen. That is what they do when they re-format a
movie
> to be full screen on a television screen. Purists hate the practice, but
> it's you who are viewing it. Usually the most important action in a movie
is
> not on the sides, but in the center.
>
> I have been using the program Betaplayer recently to view films on the
PPC,
> and have found another solution with that. (It won't play WMV files
though.
> I don't recall if WMP will do the following also, I don't recall.) It's
> basically doing the same as in the preceding paragraph, but on the
playback
> side. Under "Zoom" in options, the default is "Fit to screen". That fits a
> 320x176 video to the width, with the empty black space above and below.
> There are also options "fit width" (which would give the same result as
"fit
> screen" in this case) and "fit height". If you choose the latter, "fit
> height", the video is stretched in size so that the height of the screen
is
> filled, no black space on top and bottom. The aspect ratio of the movie is
> not changed, the movie just increases in size in all directions, so that
the
> width ends up being larger than 320, so you cannot see what is on the
sides,
> the same as if you had cropped it off, and the width fits the whole 240.
> Disadvantage of doing this, increasing the size of a video larger than its
> resolution is not considered a good idea, as it involves interpolation to
> increase the size. However, when I tried it with a 320x176 video, it
looked
> quite acceptable. Another way to do this would be to encode the video
larger
> so that the height would be 240 even with the wider aspect ratio (I think
> 432x240 for a 16:9 film). Then when you choose the "fit height" option in
> playback, just as above, the 240 height would be filled, and the sides of
> the video would not show on the screen. The advantage of the larger size
> video would be that no stretching would be required to fit that size.
> Disadvantage--of course, larger video =larger file size for the same
> compression quality.
>
> When I mentioned this possibility in another thread (perhaps a different
> forum), some people replied that it's not a good idea, better to crop the
> video in advance. However, I see some definite advantages to this method,
> doing the "cropping" in the playback end (giving the same result as if I
had
> cropped the video before encoding) rather than on the encoding end. For
one
> thing, it makes the encoding job easier, not having to deal with cropping.
> Then, while playing back, although you might mostly be watching it with
this
> "fit height" option, which gives the same effect as if you had cropped the
> sides, if you ever think there might be important things going on on the
> sides, you can easily switch the zoom to "fit screen" or "fit width", and
> see the full wide-screen video. Not having cropped the video, you can
still
> see the full picture if desired. (Again though, I don't recall if WMP has
> these same zoom options.)
>
> A different problem occurs when a movie is really wide screen, not cropped
> and re-formatted but it is still listed as 4:3, just with black bars on
top
> and bottom. Then even if you crop the sides, even if you choose "fit
height"
> on playback, those black bars will be there, as the movie thinks that is
> part of the movie. You are wasting file space too, in encoding the empty
> black space. Then it is important to crop off those black bars on top and
> bottom, before either cropping the sides, or encoding as is wide screen,
> perhaps to watch full screen with the zoom function. Some programs will
> sense such black bars in the movie, and automatically crop them off. I
don't
> recall whether WME will do that.
>
>
>
>
> "Sven, MVP-Mobile Devices" <sejohannsen@hotmail.com> wrote in message
> news:OlFoAzVZEHA.2516@TK2MSFTNGP10.phx.gbl...
> > You need to get one of the new widescreen PPCs :) I think what you are
> > seeing is the widescreen effect where the width is significantly wider
> than
> > the height in the original file. When you specify 320x240 it fits the
wide
> > width into 320 and makes the height proportional to the original height.
> It
> > maintains the original aspect. Not doing so would make for tall skinny
> > people, or cut off the edges.
> >
> > --
> > Sven, MS-MVP Mobile Devices
> > "John" <suck_me@msn.com> wrote in message
> > news:OWdmCOVZEHA.712@TK2MSFTNGP11.phx.gbl...
> > > I converted a widescreen DVD movie to an AVI (DivX, 352x240) using the
> > > interVideo DVD Copy 2 program. When I play back the AVI movie on my
PPC
> > > HP5550, it shows up as like 320x120(not sure).
> > >
> > > I converted the AVI to WMV (320x240) using Windows Media Encoder
> program.
> > > The play back still shows up as 320X120(not sure). The properties
shows
> > the
> > > file is 320x240.
> > >
> > > How can I make it to display at 320x240?
> > >
> > > Thanks,
> > > PS. If I start with a standard type DVD movie, then it would show up
as
> > > 320x240.
> > >
> > >
> >
> >
>
>
- Next message: kl: "mpg file conversion from PC->pocket PC"
- Previous message: Jeremy Stanley: "Why is there a distinction between "Work" and "The Internet"?"
- In reply to: MS: "Re: 320x240 movie doesn't show in full screen"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
