[MPlayer-users] BT878A and PAL

James Fagan jfagan at firstlightnetworks.com
Wed Mar 14 17:35:28 CET 2007


> "James Fagan" <jfagan at firstlightnetworks.com> wrote:
> 
> > VO: [xv] 640x480 => 640x480 Planar YV12  [fs]
> 
> That's definately not the right dimentions for PAL.  You should
> specify a height of 576, and I would suggest a larger width as well.
> 
> > Will it not display because of the NTSC monitor?
> 
> No such thing.  And even if there was (eg. using TV-out) neither
MPlayer
> or your tuner card cares what standard your display happens to be.
> 


Thanks for the reply. I have changed the scaling however this seems to
have little or no effect on the image that I can tell. I did notice
however that I am dropping a lot of frames. Here is the result with the
scaling and you can see the frame drops at the end. Anything else I can
try? 


=================
mplayer -quiet -slave -display :0.0 -fs -tv
device=/dev/video0:driver=v4l2:norm=PAL:input=2 -vf scal
e=720:576 -vo xv tv://
MPlayer dev-SVN-r22547-3.4.6 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Pentium(R) M processor 1.73GHz (Family: 6, Model: 13,
Stepping: 8)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2

Playing tv://.
TV file format detected.
Selected driver: v4l2
 name: Video 4 Linux 2 input
 author: Martin Olschewski <olschewski at zpr.uni-koeln.de>
 comment: first try, more to come ;-)
Selected device: BT878 video ( *** UNKNOWN/GENER
 Tuner cap:
 Tuner rxs: MONO
 Capabilites:  video capture  video overlay  VBI capture device  tuner
read/write  streaming
 supported norms: 0 = PAL; 1 = NTSC; 2 = SECAM; 3 = PAL-Nc; 4 = PAL-M; 5
= PAL-N; 6 = NTSC-JP; 7 = PAL-60;
 inputs: 0 = Television; 1 = Composite1; 2 = S-Video; 3 = Composite3;
 Current input: 2
 Current format: YVU420
v4l2: current audio mode is : MONO
Opening video filter: [scale w=720 h=576]
========================================================================
==
Opening video decoder: [raw] RAW Uncompressed Video
VDec: vo config request - 640 x 480 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
SwScaler: reducing / aligning filtersize 5 -> 4
SwScaler: reducing / aligning filtersize 5 -> 4
SwScaler: reducing / aligning filtersize 5 -> 4
SwScaler: reducing / aligning filtersize 5 -> 4
[swscaler @ 0x86a5ae0]SwScaler: BICUBIC scaler, from yuv420p to yuv420p
using MMX2
[swscaler @ 0x86a5ae0]SwScaler: using 4-tap MMX scaler for horizontal
luminance scaling
[swscaler @ 0x86a5ae0]SwScaler: using 4-tap MMX scaler for horizontal
chrominance scaling
[swscaler @ 0x86a5ae0]SwScaler: using n-tap MMX scaler for vertical
scaling (YV12 like)
[swscaler @ 0x86a5ae0]SwScaler: 640x480 -> 720x576
VO: [xv] 720x576 => 768x576 Planar YV12  [fs]
Selected video codec: [rawyv12] vfm: raw (RAW YV12)
========================================================================
==
Audio: no sound
Starting playback...
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.

v4l2: 131 frames successfully processed, 85 frames dropped.



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