[mythtv-users] Black and White input/recording?

Matt Grommes matt at mattorama.net
Mon May 23 20:57:05 UTC 2005


If you're using svideo, I had the problem where I was telling ivtv to 
use the wrong device. I was getting b&w on one device and color on 
another device. Try the other devices in ivtv and see what you get.


A JM wrote:
> Thanks for the post.
> 
> Outputting to PAL? how would that setting get set?
> 
> To be quite honest I think it's displaying as black&white as opposed
> to recording in B&W?
> 
> These errors perplex me - 
> 
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> The selected video_out device is incompatible with this codec.
> VDecoder init failed :(
> 
> I will say that I've tried reloading the video drivers (GForce) and
> resetting the PVR250's settings per Jarrod's guide and nothing is
> having an impact.
> 
> What do the above errors mean? Can I uninstall IVTV and then
> re-install completely or does anyone have any other suggestions? I'm
> definitely at a loss...
> 
> Thanks.
> 
> 
> 
> 
> I know that here in th UK if we output an NTSC signal to a PAL Television it 
> will appear in black & white so i guess you are encoding in NTSC and 
> out-putting to a PAL TV or vice-versa.
> I guess you could change the settings with "ivtvctl" or in "mythtv-setup"
> 
> 
> ----- Original Message ----- 
> From: "A JM" <vbtalent at gmail.com>
> To: <mythtv-users at mythtv.org>
> Sent: Monday, May 23, 2005 2:35 AM
> Subject: [mythtv-users] Black and White input/recording?
> 
> 
> I'm trying to test my pvr250 after having to make a change to the
> system and rebooting now all I get is black and white recordings???
> 
> #cat /dev/video0 > /tmp/test_capture.mpg
> #mplayer -vo xv /tmp/test_capture.mpg
> 
> 
> 
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> AUDIO: 48000 Hz, 2 ch, s16le, 384.0 kbit/25.00% (ratio: 48000->192000)
> Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> vo: X11 running at 800x600 with depth 24 and 32 bpp (":0.0" => local 
> display)
> ==========================================================================
> Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
> VDec: vo config request - 720 x 480 (preferred csp: Mpeg PES)
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> The selected video_out device is incompatible with this codec.
> VDecoder init failed :(
> Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
> Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG-1 or 2 (libmpeg2))
> ==========================================================================
> Checking audio filter chain for 48000Hz/2ch/s16le -> 48000Hz/2ch/s16le...
> AF_pre: 48000Hz/2ch/s16le
> alsa-init: 1 soundcard found, using: default
> alsa: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little 
> Endian
> AO: [alsa] 48000Hz 2ch s16le (2 bps)
> Building audio filter chain for 48000Hz/2ch/s16le -> 48000Hz/2ch/s16le...
> Starting playback...
> VDec: vo config request - 720 x 480 (preferred csp: Planar YV12)
> VDec: using Planar YV12 as output csp (no 0)
> Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
> VO: [xv] 720x480 => 720x540 Planar YV12
> alsa-uninit: pcm closed 0.009 ct:  0.045  53/ 53 20%  2%  1.2% 0 0
> 
> Exiting... (Quit)
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> 


More information about the mythtv-users mailing list