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MediaPortal 1
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Strange Black Borders on Video Playback
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<blockquote data-quote="mm1352000" data-source="post: 986627" data-attributes="member: 82144"><p>The video is 720x576, which is a 4:3 aspect ratio. Non-widescreen.</p><p>This means if you just take that video and put it on your TV you should expect to see quite large black borders on the sides of the picture (because your TV is 16:9 widescreen).</p><p>The screenshot shows the picture almost filling the screen, which suggests you must be using either MP, your GPU drivers or your TV to adjust the size of the picture to fill the screen. There are two ways of doing that.</p><p>1. Stretch the picture horizontally. The picture will fill the screen but everyone will look fatter than they actually are. Also known as fatovision.</p><p>2. Blow the picture up until it fills the TV horizontally. This will have the consequence that the top and bottom of the picture will be cut off.</p><p> </p><p>I suspect you're somehow (either intentionally or unintentionally) doing the second option. This would explain why the channel logo is so close to the bottom right corner, and why the picture fills the screen.</p><p> </p><p>It is difficult to me to troubleshoot this any further without actually being there with you. What I would do if I was there:</p><p>1. Clarify what you're trying to achieve. Do you want fatovision or pillar boxing on the sides?</p><p>2. Go through the video delivery chain from TV to cabling to video card to video card driver to windows to MP to MP TV and make sure that the resolution is 1920x1080 all the way through. You don't want to enable any sort of picture or aspect ratio adjustment on the TV - let MP do that with the "s" options. That means when you go to watch a widescreen movie you should expect to see no black borders. When you watch a channel such as the one you're testing with, your result will depend on whether you use "stretch" (no black borders) or "normal" black borders on the sides.</p><p> </p><p>Note it is possible that the source of the TV signal for your test channel has been converted from an analog broadcast or cut from a 16:9 feed. In this case you may see small black borders on the sides even when the picture is zoomed in, simply due to conservative cropping of the picture by the people who produce the feed (the broadcaster).</p></blockquote><p></p>
[QUOTE="mm1352000, post: 986627, member: 82144"] The video is 720x576, which is a 4:3 aspect ratio. Non-widescreen. This means if you just take that video and put it on your TV you should expect to see quite large black borders on the sides of the picture (because your TV is 16:9 widescreen). The screenshot shows the picture almost filling the screen, which suggests you must be using either MP, your GPU drivers or your TV to adjust the size of the picture to fill the screen. There are two ways of doing that. 1. Stretch the picture horizontally. The picture will fill the screen but everyone will look fatter than they actually are. Also known as fatovision. 2. Blow the picture up until it fills the TV horizontally. This will have the consequence that the top and bottom of the picture will be cut off. I suspect you're somehow (either intentionally or unintentionally) doing the second option. This would explain why the channel logo is so close to the bottom right corner, and why the picture fills the screen. It is difficult to me to troubleshoot this any further without actually being there with you. What I would do if I was there: 1. Clarify what you're trying to achieve. Do you want fatovision or pillar boxing on the sides? 2. Go through the video delivery chain from TV to cabling to video card to video card driver to windows to MP to MP TV and make sure that the resolution is 1920x1080 all the way through. You don't want to enable any sort of picture or aspect ratio adjustment on the TV - let MP do that with the "s" options. That means when you go to watch a widescreen movie you should expect to see no black borders. When you watch a channel such as the one you're testing with, your result will depend on whether you use "stretch" (no black borders) or "normal" black borders on the sides. Note it is possible that the source of the TV signal for your test channel has been converted from an analog broadcast or cut from a 16:9 feed. In this case you may see small black borders on the sides even when the picture is zoomed in, simply due to conservative cropping of the picture by the people who produce the feed (the broadcaster). [/QUOTE]
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