The cropdetect feature in mplayer is implemented as a keyword before the title of the input:
mplayer -vf cropdetect movie.mpg alternatively you can set the width and height of the crop as well, mplayer -vf crop=480:416:0:80 movie.mpg....mplayer is amazingly versatile, but I still prefer vlc. VLC has an aspect ratio built into the gui, on the video menu. Thank you, Mark F. Kaufman ________________________________ From: Scott Kidder <[EMAIL PROTECTED]> To: User discussion about IVTV <[email protected]> Sent: Saturday, November 29, 2008 8:55:40 PM Subject: Re: [ivtv-users] PVR-150: Black Border on Left & Bottom of Composite Video On Thu, Nov 27, 2008 at 8:24 AM, Thomas Dodd <[EMAIL PROTECTED]> wrote: > On Wed, Nov 26, 2008 at 1:43 AM, Sander Sweers > <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote: > > On Wed, Nov 26, 2008 at 01:04, Scott Kidder > <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote: > > Video captured with my PVR-150 on the composite input has been > showing a > > black border on the left and bottom edges. This is mostly a > nuisance, but > > something I'd like to be rid of. Here's a link to a still from > captured > > video: > > > > http://farm4.static.flickr.com/3063/3060158134_8f143d71b8_o.png > > There is nothing wrong here and is normal for analog tv capture, it is > part of the broadcast. You normally do not see this on your TV as it > uses overscan (at least I thought it was called overscan). > > If you want to get rid of it you will have to use something like > mplayers crop and cropdetect features. > > > Scott, What resolution are you capturing at? What sources are you using? The resolution I'm capturing at is 720x480 with MythTV. The source is the composite outputs from my Comcast Digital Cable decoder box to the composite inputs on the PVR-150. Here's a portion of the IVTV settings described in my first posting to this thread: ivtv0: Video Input: Composite 1 ivtv0: Audio Input: Line In 1 ivtv0: Tuner: TV ivtv0: Stream: MPEG-2 Program Stream ivtv0: VBI Format: Private packet, IVTV format ivtv0: Video: 720x480, 30 fps ivtv0: Video: MPEG-2, 4x3, Variable Bitrate, 6000000, Peak 8000000 ivtv0: Video: GOP Size 15, 2 B-Frames, GOP Closure ivtv0: Audio: 48 kHz, MPEG-1/2 Layer II, 384 kbps, Stereo, No Emphasis, No CRC The solution I'm using today is to scale the captured video during playback in MythTV. This works alright, but the optimal solution would be to not require scaling at all. I'll try capturing with the coaxial tuner input to see if the results differ. Thanks, Scott Kidder
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