Re: Home video-displaying 4:3 image in 16:9 Frame
- From: "Vin" <vindictor@*NOSPAM*talk21.com>
- Date: Fri, 9 Sep 2005 20:57:50 +0100
by the way, still looking.
I guess it's something to do with the fact that the source 16:9 material
starts off at 1024x576 and the 4:3 at 720x576, even though after being
converted to DVD, even the widescreen is at 720x576.
Do I somehow have to alter the resolution of my 4:3 material to 1024x576
before being converted to DVD compliant MPEG2, leaving it in the centre of
the screen, with black bars (or maybe another colour/pattern of my choosing)
at either side?
Please be gentle, I am still learning! ;)
"Vin" <vindictor@*NOSPAM*talk21.com> wrote in message
> Hi there.
> I'm just trying to convert some video I made during the summer.
> I borrowed a JVC MiniDV camera, and shot most of the video in "squeeze"
> mode, assuming when played back,
> this would be anamorphic widescreen. Unfortunately, I failed to notice
> that in some shots where the camera was on full auto,
> it recorded in normal 4:3.
> Anyway, as I don't have the equipment personally, somebody just dropped me
> off the files, copied via firewire and appearing as .avi files.
> I have used Canopus Procoder to convert some files, and they've come out
> superb. The 16:9 (squeeze) material auto switches the TV to WIDE mode,
> and everything is in the correct aspect ratio. Now... if only all the
> files were 16:9
> My first attempt was to convert 16:9 DV files to 16:9 MPEG2 files
> also 4:3 DV files to 4:3 DV files
> When tried separately this works fine. When authored to DVD, the 4:3
> material switches the TV to 4:3 mode, with black bars down the side of
> However, as one long "film" I cannot author 4:3 and 16:9 material in the
> same "title" which is as I wish to do.
> OK, I figured I'd redo the 4:3 files.... so reloaded Canopus, which
> correctly registers the aspect ratio as 4:3, and on the output settings I
> set the code to 16:9, seeing as it says this setting does nothing to the
> converting, just leaves a code for the TV switching. (In fact, actual
> wording is "MPEG Stream has an aspect ratio code to instruct the player to
> display frame correctly. This parameter is just for information and
> doesn't affect the encoding process itself")
> So, it worked, sort of. The 16:9 material and 4:3 material can now be
> authored together, however, the 4:3 material is displayed inside a box.
> The aspect ratio is correct, but rather than a normal 4:3 image filling
> the centre of the screen with black bars either side (which I was thinking
> should happen, after remembering watching the footy on TV, where the
> studio shots are 16:9, but the match is 4:3 in a 16:9 frame) the
> conversion seems to have added letterbox to the top and bottom. Watching
> on a widescreen TV means very big black bars to the sides and smaller
> above and below (14:9 zooms enough to eliminate letterbox) . Watching on
> a 4:3 TV has the picture in a box.
> I therefore ask the wise people of the newsgroup not to pick my grammar
> and spelling to pieces ;) as I've been sitting here for ages trying every
> way I can think of to do this, and I now have a headache ;)
> To recap what I've tried with 4:3 files:-
> Telling Canopus:
> 4:3 source, set code on output to 16:9 = picture inside a box
> 16:9 source, set code on output to 16:9 = stretched 4:3 image to fill 16:9
> (as expected)
> as I've said, I can't leave the aspect ratio code to 4:3 as I then can't
> author it together with the 16:9 stuff.
> All I want to do is display the 4:3 in a 16:9 frame, like the football
> does! :'( ;)
> rather than in a black box with bars all around, rather than just at the
> At the end of the day, the being stuck in a box method is better than
> nothing. At least it can be included in the same title, and has the
> correct aspect ratio.
> PLEASE advise :)
> P.S. I did try it the other way around, giving 16:9 source a 4:3 code.
> This also worked, and kept the correct aspect ratio, but was no longer
> anamorphic, rather letterboxed widescreen in a 4:3 frame, therefore
> requiring me to use the ZOOM mode on the TV, giving worse quality.
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