MPlayer has tons of other uses besides viewing video files. For example, you can view your webcam with it:
mplayer -cache 128 -tv driver=v4l:width=640:height=480:outfmt=i420 -vc rawi420 -vo xv tv://
MPlayer has tons of other uses besides viewing video files. For example, you can view your webcam with it:
mplayer -cache 128 -tv driver=v4l:width=640:height=480:outfmt=i420 -vc rawi420 -vo xv tv://
I am sending you the result of issuing the command you tipped.
$ mplayer -cache 128 -tv driver=v4l:width=640:height=480:outfmt=i420 -vc rawi420 -vo xv tv://
MPlayer 1.0rc2-4.3.2 (C) 2000-2007 MPlayer Team
CPU: Intel(R) Pentium(R) Dual CPU E2180 @ 2.00GHz (Family: 6, Model: 15, Stepping: 13)
CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
Option msglevel: Unknown suboption 5
Warning unknown option msglevel at line 5
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 tv://.
Cache fill: 0.00% (0 bytes)
TV file format detected.
Selected driver: v4l
name: Video 4 Linux input
author: Alex Beregszaszi
comment: under development
=================================================================
WARNING: YOU ARE USING V4L DEMUXER WITH V4L2 DRIVERS!!!
As the V4L1 compatibility layer is broken, this may not work.
If you encounter any problems, use driver=v4l2 instead.
Bugreports on driver=v4l with v4l2 drivers will be ignored.
=================================================================
Selected device: Sirius USB2.0 Camera
Capabilites: capture
Device type: 1
Supported sizes: 48×32 => 640×480
Inputs: 1
ioctl get channel failed: Invalid argument
ioctl set chan failed: Invalid argument
ioctl set chan failed: Invalid argument
Error: Cannot set norm!
Selected input hasn’t got a tuner!
ioctl set picture failed: Invalid argument
The ‘outfmt’ of ‘Planar I420’ is likely not supported by your card
MPlayer interrupted by signal 11 in module: demux_open
– MPlayer crashed by bad usage of CPU/FPU/RAM.
Recompile MPlayer with –enable-debug and make a ‘gdb’ backtrace and
disassembly. Details in DOCS/HTML/en/bugreports_what.html#bugreports_crash.
– MPlayer crashed. This shouldn’t happen.
It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
gcc version. If you think it’s MPlayer’s fault, please read
DOCS/HTML/en/bugreports.html and follow the instructions there. We can’t and
won’t help unless you provide this information when reporting a possible bug.
Fotis, use v4l2 instead of v4l. Also, dropping “-vc rawi420” would help.
mplayer -cache 128 -tv driver=v4l2:width=640:height=480 -vo xv tv://
i am using compulab’s cm-t3530 kit (Cortex-A8) running angstrom linux. Mplayer doesnt respond when i click on the gui.
from command line i get the following error when i type what u said. i attach the logitech web came
playing tv://
cache fill :0.00% (0 bytes)
tv file format detected
selected driver v4l2
name: video 4 linux 2 input
author :Martin….
comment : first try, more to come:
v4l2:unable to open’/dev/video0′: no such file or directory
v4l2:ioctl set mute failed:bad file descriptor
v4l2: 0 frames successfully processed, 0 fames dropped
regards
anmol rana: have you plugged in some camera device?
“unable to open’/dev/video0?: no such file or directory” message tells that not. In other case, if you have /dev/video1 for example, you should to pass this information to a program like that:
“(…)driver=v4l2:device=/dev/video1:(…)”
i get this error
playing tv://
TV file format detected
selected driver:v4l2
name: Video 4 linux 2 input
author : Martin Ol………
comment: first try, more to come 🙂
v4l2: your device driver does not support VIDIOC_G_STD ioctl, VIDIOC_G_PARM was used instead.
selected device: camera
capabilities: video capture read/write streaming
supported norms:
inputs: 0 = STV06xx;
Current input : 0
current format: unknown (0X47425247)
tv.c:norm_from_string(pal):Bogus norm parameter, setting default
v4l2: ioctl enum norm failed: Invalid argument
Error: Cannot set norm!
Selected input hasn’t got a tuner!
v4l2: cannot get fps
v4l2: ioctl set mute failed: Invalid argument
v4l2: ioctl query control failed: Invalid argument
v4l2: ioctl query control failed: invalid argument
——————————————————-
cannot find codec matching selected -vo and video format 0X47425247
———————————————————
v4l2: ioctl set mute failed: Invalid argument
v4l2: 0 frames successfully processed, 0 frames dropped
Exiting……. (end of file)
thnks