[mythtv-users] mythtv+pvr250+pcHDTV and it WORKS

Thu Jul 8 21:35:57 EDT 2004

Ok - sorry it took so long to get this info back to you Doug.  Here is the output of mythfrontend in verbose mode.  It has Interlace == -1 ... this would suggest it is disabled?

This output was while watching ATSC on NBC - which I believe is 1080i.

Here is the output:

htpc root # mythfrontend --verbose playback
2004-07-08 21:31:57 mythfrontend version: 0.15.20040525-1 www.mythtv.org
2004-07-08 21:31:57 Enabled verbose msgs : important general playback
2004-07-08 21:31:57 Registering Internal as a media playback plugin.
2004-07-08 21:31:57 Registering MythDVD DVD Media Handler as a media handler
2004-07-08 21:31:57 Registering MythDVD VCD Media Handler as a media handler
Failed to run 'cdrecord --scanbus'
2004-07-08 21:31:57 Registering MythMusic Media Handler as a media handler
2004-07-08 21:32:07 Connecting to backend server: 127.0.0.1:6543 (try 1 of 5)
2004-07-08 21:32:07 Using protocol version 8
2004-07-08 21:32:07 Using protocol version 8
2004-07-08 21:32:07 Using protocol version 8
2004-07-08 21:32:08 Output filters for this recording are: 'linearblend,'
2004-07-08 21:32:10 Interlaced: -1  video_height: 480  fps: 29.97
2004-07-08 21:32:10 Estimated bitrate = 384000
2004-07-08 21:32:10 Interlaced: -1  video_height: 480  fps: -1
Input #0, mpeg, from 'rbuf://127.0.0.1:6543/htpc/mythtv/video/ringbuf1.nuv':
  Stream #0.0: Video: mpegvideo_xvmc, 720x480, 29.97 fps
  Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
2004-07-08 21:32:10 Partial position map found
2004-07-08 21:32:10 Opening OSS audio device '/dev/dsp'.
2004-07-08 21:32:10 Audio fragment size: 4096
2004-07-08 21:32:10 Over/underscan. V: 0, H: 0, XOff: 0, YOff: 0
Using XvMC version: 1.0
2004-07-08 21:32:10 XvMCSurfaceTypes::find(w 720, h 1, c 1, i 2, m 0,sw 0, sh 145, disp, p<= 145, 4800 <=p, port, surfNum)
2004-07-08 21:32:10 Trying XvMC port 145
2004-07-08 21:32:10 XvMCSurfaceTypes::find(w 720, h 1, c 0, i 2, m 0,sw 0, sh 145, disp, p<= 145, 4800 <=p, port, surfNum)
2004-07-08 21:32:10 Trying XvMC port 145
2004-07-08 21:32:10 XvMCSurfaceTypes::find(w 720, h 1, c 1, i 2, m 0,sw 0, sh 146, disp, p<= 146, 4800 <=p, port, surfNum)
2004-07-08 21:32:10 Trying XvMC port 146
2004-07-08 21:32:10 Found a suitable XvMC surface 0
2004-07-08 21:32:10 Using XV port 146
2004-07-08 21:32:10 Image size. dispxoff 159, dispyoff: 0, dispwoff: 961, disphoff: 720
2004-07-08 21:32:10 Image size. imgx 0, imgy: 0, imgw: 720, imgh: 480
2004-07-08 21:32:10 Changing from None to WatchingLiveTV
2004-07-08 21:32:10 waiting for prebuffer...
2004-07-08 21:32:11 Interlaced: -1  video_height: 480  fps: -1
2004-07-08 21:32:11 Interlaced: -1  video_height: 480  fps: -1
2004-07-08 21:32:12 Changing from WatchingLiveTV to None
2004-07-08 21:32:12 Using protocol version 8
2004-07-08 21:32:12 Output filters for this recording are: 'linearblend,'
2004-07-08 21:32:16 Interlaced: -1  video_height: 1088  fps: 29.97
2004-07-08 21:32:16 Estimated bitrate = 384000
2004-07-08 21:32:16 Interlaced: -1  video_height: 1088  fps: -1
Input #0, mpegts, from 'rbuf://127.0.0.1:6543/htpc/mythtv/video/ringbuf2.nuv':
  Stream #0.0[0x11]: Video: mpegvideo_xvmc, 1920x1088, 29.97 fps
  Stream #0.1[0x14]: Audio: ac3, 48000 Hz, stereo, 384 kb/s
2004-07-08 21:32:16 Partial position map found
2004-07-08 21:32:16 Opening OSS audio device '/dev/dsp'.
2004-07-08 21:32:16 Audio fragment size: 4096
2004-07-08 21:32:16 Over/underscan. V: 0, H: 0, XOff: 0, YOff: 0
Using XvMC version: 1.0
2004-07-08 21:32:16 XvMCSurfaceTypes::find(w 1920, h 1, c 1, i 2, m 0,sw 0, sh 145, disp, p<= 145, 10880 <=p, port, surfNum)
2004-07-08 21:32:16 Trying XvMC port 145
2004-07-08 21:32:16 XvMCSurfaceTypes::find(w 1920, h 1, c 0, i 2, m 0,sw 0, sh 145, disp, p<= 145, 10880 <=p, port, surfNum)
2004-07-08 21:32:16 Trying XvMC port 145
2004-07-08 21:32:16 XvMCSurfaceTypes::find(w 1920, h 1, c 1, i 2, m 0,sw 0, sh 146, disp, p<= 146, 10880 <=p, port, surfNum)
2004-07-08 21:32:16 Trying XvMC port 146
2004-07-08 21:32:16 Found a suitable XvMC surface 0
2004-07-08 21:32:16 Using XV port 146
2004-07-08 21:32:16 Image size. dispxoff 0, dispyoff: 1, dispwoff: 1280, disphoff: 718
2004-07-08 21:32:16 Image size. imgx 0, imgy: 0, imgw: 1920, imgh: 1088
2004-07-08 21:32:17 waiting for prebuffer...
2004-07-08 21:32:17 Changing from None to WatchingLiveTV
2004-07-08 21:32:17 prebuffer wait timed out..
2004-07-08 21:32:17 waiting for prebuffer...
'video_output' mean = '40060.65', std. dev. = '8396.79', fps = '24.96'
7
'video_output' mean = '33493.78', std. dev. = '9999.16', fps = '29.86'
10
'video_output' mean = '33323.54', std. dev. = '9886.88', fps = '30.01'
-2
'video_output' mean = '33334.34', std. dev. = '4712.57', fps = '30.00'
0
'video_output' mean = '33343.36', std. dev. = '2583.41', fps = '29.99'
4
'video_output' mean = '33483.42', std. dev. = '11479.47', fps = '29.87'
7

--

--------- Original Message ---------

DATE: Mon, 05 Jul 2004 10:29:15
From: Doug Larrick <doug at ties.org>
To: homepagez at eudoramail.com,Discussion about mythtv <mythtv-users at mythtv.org>
Cc: 

>John Roberts wrote:
>
>> When I watch ABC (which is 720p) it's fantastic - nothing but a
>> fantastic ATSC signal. BUT - when I watch CBS and NBC I can see (what
>> I think is) an interlace effect.  In other words I can see the scan
>> lines when objects are moving. So - since CBS and NBC are 1080i - I'm
>> thinking it much be the difference between the two ATSC formats. How
>> can I correct this?  I'm using an nVidia 5500 with XvMC enabled
>> feeding my Samsung DLP (Progressive display) at 720p (1280x720p -
>> which is the native mode/size for the TV).
>
>Yes, you're seeing interlaced effects.  If you were using normal Xv 
>output you could use one of the deinterlacing filters on your 1080i 
>channels (onefield, linearblend (the default), or kerneldeint (probably 
>too much CPU for HDTV).  But since you're using XvMC, it should 
>automatically be giving you the equivalent of onefield.  If you run 
>'mythfrontend --verbose playback' do you see a line like this:?
>
>   2004-07-05 10:20:08 Interlaced: 1  video_height: 1088  fps: 29.97
>
>If you don't, something's wrong with the interlaced/non-interlaced 
>detection.  If you do, and it's still showing interlaced artifacts, 
>something's wrong with the output side of things.
>
>This is all assuming you've got a moderately recent MythTV (0.15.1, or 
>CVS, preferably).
>
>-Doug
>

Need a new email address that people can remember
Check out the new EudoraMail at
http://www.eudoramail.com