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markino7200
n00b
Joined: 25 Dec 2006
Posts: 5
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 Posted: Thu Feb 08, 2007 6:40 pm Post subject: [Solved] Mythv Image Flickering |
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I own a Hauppauge PVR 150 and when i fire Up MythTv, to watch tv, i see a distorted and multiple flickering image.
This does not happend when i try to whach tv directly using "mplayer /dev/video0"
this is my kernel version (uname -a)
| Quote: | | Linux xxxxxxx 2.6.19-gentoo-r6 #1 SMP Thu Feb 8 17:54:03 CET 2007 x86_64 AMD Athlon(tm) 64 Processor 3500+ AuthenticAMD GNU/Linux |
i'm using ivtv 0.9.1 and mythtv-0.20_p12599, and nvidia driver 1.0.9746
and here i'm quoting the mythfrontend non-verbose debug output  )
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2007-02-08 19:36:04.324 Using runtime prefix = /usr
2007-02-08 19:36:04.381 DPMS is disabled.
2007-02-08 19:36:04.650 New DB connection, total: 1
2007-02-08 19:36:05.002 Connected to database 'mythconverg' at host: localhost
2007-02-08 19:36:05.003 Total desktop dim: 1280x1024, with 1 screen[s].
2007-02-08 19:36:05.045 Using screen 0, 1280x1024 at 0,0
2007-02-08 19:36:05.111 Current Schema Version: 1160
2007-02-08 19:36:05.111 mythfrontend version: 0.20.20060828-3 www.mythtv.org
2007-02-08 19:36:05.111 Enabled verbose msgs: important general
2007-02-08 19:36:06.386 Total desktop dim: 1280x1024, with 1 screen[s].
2007-02-08 19:36:06.387 Using screen 0, 1280x1024 at 0,0
2007-02-08 19:36:06.388 Switching to square mode (MythCenter)
2007-02-08 19:36:06.663 Using the Qt painter
mythtv: could not connect to socket
mythtv: No such file or directory
lirc_init failed for mythtv, see preceding messages
2007-02-08 19:36:09.115 Loading from: /usr/share/mythtv/themes/default/base.xml
2007-02-08 19:36:09.902 Registering Internal as a media playback plugin.
2007-02-08 19:36:31.134 New DB connection, total: 2
2007-02-08 19:36:31.135 Connected to database 'mythconverg' at host: localhost
2007-02-08 19:36:31.325 Connecting to backend server: 127.0.0.1:6543 (try 1 of 5)
2007-02-08 19:36:31.508 Using protocol version 31
2007-02-08 19:36:31.552 TV: Attempting to change from None to WatchingLiveTV
2007-02-08 19:36:31.553 Using protocol version 31
[mpeg @ 0x2b6a5b2d2400]Parser not found for Codec Id: 94210 !
2007-02-08 19:36:35.227 AFD: Opened codec 0xbc0aa0, id(MPEG2VIDEO) type(Video)
2007-02-08 19:36:35.253 AFD: Opened codec 0xbc1ec0, id(MP2) type(Audio)
2007-02-08 19:36:35.256 Opening OSS audio device '/dev/dsp'.
2007-02-08 19:36:35.256 AudioOutput Error: WARNING: something is currently using: /dev/dsp, retrying.
2007-02-08 19:36:35.256 NVP: Disabling Audio, reason is: WARNING: something is currently using: /dev/dsp, retrying.
2007-02-08 19:36:35.268 VideoOutputXv: XvMCTex: Init failed
2007-02-08 19:36:35.268 VideoOutputXv: XVideo Adaptor Name: 'NV17 Video Texture'
X Error: BadMatch (invalid parameter attributes) 8
Major opcode: 140
Minor opcode: 14
Resource id: 0x20e
2007-02-08 19:36:37.444 Realtime priority would require SUID as root.
2007-02-08 19:36:37.445 TV: Changing from None to WatchingLiveTV
2007-02-08 19:36:37.637 Video timing method: USleep with busy wait
2007-02-08 19:36:49.298 NVP: prebuffering pause
2007-02-08 19:36:53.617 TV: Attempting to change from WatchingLiveTV to None
2007-02-08 19:36:53.729 TV: Changing from WatchingLiveTV to None
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Tnx 
Last edited by markino7200 on Wed Feb 14, 2007 6:26 pm; edited 1 time in total |
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Hobbes-X
l33t
Joined: 04 Feb 2004
Posts: 823
Location: Seattle, WA
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| Posted: Fri Feb 09, 2007 8:36 pm Post subject: |
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Could you describe the distortion and flickering?
Looks like you're using an nvidia card. Displaying to a TV, or on a monitor?
Have you setup any de-interlacing filters? Your souce should be interlaced coming from the PVR-150. |
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markino7200
n00b
Joined: 25 Dec 2006
Posts: 5
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| Posted: Mon Feb 12, 2007 6:26 pm Post subject: |
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image seem duplicated and non interlaced, you can find a screenshot (sometimes an image is better than thousands words  ) of the defect on my blog:
here http://markino.no-ip.org/wordpress/wp-content/uploads/2007/02/mythtv_problem.jpg ( my Blog  )
I'm using an nVidia 6600 and i'm showing TV on a standard computer LCD Monitor.
i'have tried to setup de-intelace filters but without no effect...
Tnx |
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Hobbes-X
l33t
Joined: 04 Feb 2004
Posts: 823
Location: Seattle, WA
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| Posted: Tue Feb 13, 2007 12:04 am Post subject: |
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Hmm- interesting. I don't know of anything off the top of my head, but I'll look around a bit more tonight once I have some free time. Is it always the bottom half of the screen that has issues? Looks like it might even be more than one frame off too. Have you been trying any of the opengl vsync stuff?
As far as I know, most of the deinterlacers aren't compatible with xvmc, so that may be why it doesn't seem to change anything. I've seen reports of bob-deinterlace working, but it may need some tweaking first.
Also, does mplayer still playback correctly when using xvmc? (Of course, it needs xvmc support compiled in to work...)
| Quote: | | mplayer -vo xvmc -vc ffmpeg12mc /dev/video0 |
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markino7200
n00b
Joined: 25 Dec 2006
Posts: 5
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| Posted: Tue Feb 13, 2007 7:29 pm Post subject: |
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I have find a solution to my problem )
looking at mplayer output...
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MPlayer 1.0rc1-4.1.1 (C) 2000-2006 MPlayer Team
CPU: AMD Athlon(tm) 64 Processor 3500+ (Family: 15, Model: 47, Stepping: 2)
3DNowExt supported but disabled
CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 0 SSE: 1 SSE2: 1
Compilato per CPU x86 con estensioni: MMX MMX2 3DNow SSE SSE2
Riproduco /dev/video0.
Rilevato formato file MPEG-PS!
VIDEO: MPEG2 720x576 (aspect 2) 25.000 fps 8000.0 kbps (1000.0 kbyte/s)
==========================================================================
Apertura decoder video: [mpegpes] MPEG 1/2 Video passthrough
VDec: configurazione chiesta dal vo - 720 x 576 (sp.col. preferito: Mpeg PES)
Impossibile trovare uno spazio colore adatto - riprovo con -vf scale...
Apertura filtro video: [scale]
Il dispositivo di uscita video_out scelto è incompatibile con questo codec.
Prova aggiungendo il filtro scale, per esempio -vf spp,scale invece di -vf spp.
Inizializzazione VDecoder fallita 
Apertura decoder video: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
Scelto codec video: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
==========================================================================
==========================================================================
Apertura decoder audio: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 224.0 kbit/14.58% (ratio: 28000->192000)
Scelto codec audio: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
[AO OSS] audio_setup: Non posso aprire il dispositivo audio /dev/dsp: Device or resource busy
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Inizio la riproduzione...
VDec: configurazione chiesta dal vo - 720 x 576 (sp.col. preferito: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect è 1.33:1 - riscalo per ottenere un rapporto corretto.
VO: [xv] 720x576 => 768x576 Planar YV12
A: 85.5 V: 85.5 A-V: -0.004 ct: -0.341 2119/2119 7% 1% 0.7% 5 0
In uscita... (Uscita)
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my Tv resolution [720x576]... but my MythTv reproduction/recording resolution was 480x480 (i have found it under Settings -> Settings -> TV Settings -> Recording -> MPEG2-Encoders(PVR-x50,PVR-500) -> Default or Live TV)
 changing this Resolution seem to resolve the problem, no more flickering and distortion
but the image quality is a little poor...
I think some filter, and audio optimization may solve definitively the problem... |
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