Thanks Keith for your great explanation.
The following works great on a PAL television:
-vf scale=720:-2,expand=720:576:::0
To test the xv driver I upgraded from 0.3.6u to 0.3.7d (0.10.5).
I just want to mention that I had to remove the -zoom or else the movie gets
very jerky.
This bottered me all the time when I tried the xv driver previously. But now it
works great.
Also I had to specify the -fs when using the xv driver or else the picture is moved 6-8pix to the left and I see the myth theme on
the right.
Now it centers correctly. With the x11 driver it didn't make a difference.
Before I used to vo_fullscreen to toggle from fullscreen to the original size, especially for lower-res movies. Is there a
possibility to disable/activate the filters on the fly ?
Pascal
++ mplayer -vo xv -alang de -cache 8192 -ao sdl -framedrop -quiet -fs -vf
scale=720:-2,expand=720:576:::0 abc.vob
MPlayer 1.0pre7-SUSE-9.3-i686-Packman-3.3.5 (C) 2000-2005 MPlayer Team
CPU: Intel Pentium 4/Xeon/Celeron Foster (Family: 8, Stepping: 7)
Detected cache-line size is 64 bytes
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetection.
Can't init input joystick
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0 : No such device
Setting up LIRC support...
Playing abc.vob.
MPEG-PS file format detected.
VIDEO: MPEG2 720x576 (aspect 3) 25.000 fps 9800.0 kbps (1225.0 kbyte/s)
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 5.1 (3f+2r+lfe) 48000 Hz 384.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, s16le, 384.0 kbit/25.00% (ratio: 48000->192000)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
==========================================================================
vo: X11 running at 720x576 with depth 24 and 32 bpp (":1" => local display)
Opening video filter: [expand w=720 h=576 osd=0]
Expand: 720 x 576, -1 ; -1 (-1=autodetect) osd: 0
Opening video filter: [scale w=720 h=-2]
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 720 x 576 (preferred csp: Mpeg PES)
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
[AO SDL] Samplerate: 48000Hz Channels: Stereo Format s16le
AO: [sdl] 48000Hz 2ch s16le (2 bps)
Building audio filter chain for 48000Hz/2ch/s16le -> 48000Hz/2ch/s16le...
Starting playback...
VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 7 -> 6
SwScaler: reducing / aligning filtersize 7 -> 6
SwScaler: BICUBIC scaler, from Planar YV12 to Planar YV12 using MMX2
VO: [xv] 720x576 => 721x576 Planar YV12 [fs] [zoom]
Exiting... (Quit)
---------------------------------------------
----- Original Message -----
From: "Keith C" <[EMAIL PROTECTED]>
To: "Development of mythtv" <[email protected]>
Sent: Monday, August 15, 2005 6:36 PM
Subject: Re: [mythtv] mythvideo: can see the myth theme when playing a video16:9
In Mythvideo when I play 16:9 DVD-VOBs with the following command:
mplayer -vo x11 -alang de -cache 8192 -ao sdl -really-quiet -fs -
zoom "$1"
I see the myth theme at the top and bottom of the screen.
I prefer to put all my options in the ~/.mplayer/config file and then
leaving the MythVideo player call at "mplayer %s". Makes it far
easier to keep cleaned up.
My guess here is that the "-vo x11" is at fault. The x11 video out
might not work as well as the xv out that most of us use.
And now, I give up one of my most precious secrets, how to get
mplayer to scale video to fit inside an over-scanned output. You
could easily modify this line to scale video to fit inside whatever
window size you want :
vf = pp=de,scale=1170:-2,expand=1280:720:26::0
This is a video filter:
pp=de - denoise filter (i've always had it, assuming it was good)
scale=1170:-2 - this scales the original video to 1170 pixels
wide (what actually fits in my over-scanned tv screen), and the -2
scales the vertical size to keep the original aspect ratio
expand=1280:720:26::0 - this puts black borders around the video
to fit the 1280x720 screen size and positions the newly scaled video
at 26 pixels in from the left and centers the vertical.
I have noticed a bit of a change in the playback quality/speed, but
it's still very watchable. A better solution for me would likely be
to force the xserver to only use the visible part of the screen, but
I'm not good enough at modelines to get that working.
Keith C
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