[mythtv-users] DMA to ivtv FB problems

Mark Gardner markgard at gmail.com
Mon Jan 10 19:51:39 EST 2005


Sorry if this is a repost but i never saw it come back on the list.
Weird Problem.
Setup:
Abit motherboard via chipset
PVR 350
FC2 by Jarods Guide

If i use
cat /dev/video0 > /tmp/test_capture.mpg
the resulting file plays fine on another computer. however when I try
to use mplayer i get the following output.
[root at mcbain root]# /usr/bin/mplayer /dev/video0
MPlayer 1.0pre6-3.3.3 (C) 2000-2004 MPlayer Team
CPU: Advanced Micro Devices Athlon MP/XP Thoroughbred (Family: 6, Stepping: 1)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0

Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0 : No such device
Can't init input joystick
Setting up LIRC support...
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support.
You will not be able to use your remote control.
Playing /dev/video0.
MPEG-PS file format detected.
VIDEO:  MPEG2  720x480  (aspect 2)  29.970 fps  15000.0 kbps (1875.0 kbyte/s)
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 48000->192000 (384.0 kbit)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
No vidix driver name provided, probing available ones (-v option for details)!
vo: couldn't open the X11 display ()!
vo: couldn't open the X11 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/16bit -> 48000Hz/2ch/16bit...
AF_pre: af format: 2 bps, 2 ch, 48000 hz, little endian signed int
AF_pre: 48000Hz 2ch Signed 16-bit (Little-Endian)
alsa-init: got device=0, subdevice=0
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 Signed 16-bit (Little-Endian) (2 bps)
Building audio filter chain for 48000Hz/2ch/16bit -> 48000Hz/2ch/16bit...
Starting playback...
VDec: vo config request - 720 x 480 (preferred csp: Planar YV12)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
No accelerated colorspace conversion found
SwScaler: using unscaled Planar YV12 -> RGBA special converter
VO: [ivtvosd] 720x480 => 720x540 RGBA
fb_size=6291456 fb_dev_fd=5
Error with sending DMA to ivtv FB! Invalid argument% ??% ??,?% 0 0
Error with sending DMA to ivtv FB! Invalid argument
Error with sending DMA to ivtv FB! Invalid argument% ??% ??,?% 0 0
Error with sending DMA to ivtv FB! Invalid argument
Error with sending DMA to ivtv FB! Invalid argument% ??% ??,?% 0 0

This continues until i hit [CTRL] C .

I've tried to look in the archives and found some stuff similar but no
answer.  Relating to mplayer not being able  to send through the Frame
buffer. but still no answer.


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