[MPlayer-users] Query: ioctl mcapture failed: Invalid argument

[Tim Cropley]

Good day,

I have just spent that last few evenings bringing up a new machine (P3 550, 
Asus CUSL2, Asus v6600 Deluxe, SB Live) to act as a PVR. It's running a 
Debian install w/ a custom 2.4.22 kernel, rivatv. While working through an 
install of Freevo, I have stalled out on the mplayer/mencoder 'step' ... And 
I'm not sure how to proceed, whether I've missed something stupid (I've spent 
_hours_ over the last three evening googling, poking, proding etc ...) and 
the closet I've come seems to give me a blast (endless string) of:

ioctl mcapture failed: Invalid argument
ioctl mcapture failed: Invalid argument
ioctl mcapture failed: Invalid argument

I've seen a couple of references to the string, but not any solutions; or 
even paths to explore. I know that the video capture is working ok, as xawtv 
is going like a bear; :). 

I know that the command line that I've been using needs to be tweaked, but 
i've had no joy at all. Any advice on how to move forward, or even where to 
look.

all the very best in the new year;

Tim
=========
cmd line & output follow:
=========


mencoder tv:// -tv 
driver=v4l:norm=NTSC:input=1:outfmt=RGB15:width=352:height=288:device=/dev/vid
eo0:adevice=/dev/audio:forceaudio -oac mp3lame -ovc divx4

output:
========================

MEncoder 1.0pre3-3.3.3 (C) 2000-2003 MPlayer Team

CPU: Intel Celeron 2/Pentium III Coppermine,Geyserville 556.0 MHz (Family: 6, 
Stepping: 1)
Detected cache-line size is 32 bytes
MMX2 supported but disabled
CPUflags: Type: 6 MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX SSE

Reading /root/.mplayer/mencoder_codecs.conf: Can't 
open '/root/.mplayer/mencoder_codecs.conf': No such file or directory
Reading /etc/mplayer/mencoder_codecs.conf: 61 audio & 169 video codecs
AVI: Missing video stream!? Contact the author, it may be a bug :(
============ Sorry, this file format is not recognized/supported =============
=== If this file is an AVI, ASF or MPEG stream, please contact the author! ===
Reading config file /root/.mplayer/mencoder: No such file or directory
font: can't open file: /root/.mplayer/font/font.desc
Font /usr/share/mplayer/font/font.desc loaded successfully! (206 chars)
success: format: 9  data: 0x0 - 0x0
TV detected! ;-)
Selected driver: v4l
 name: Video 4 Linux input
 author: Alex Beregszaszi
 comment: under development
Selected device: rivatv video
 Capabilites: capture overlay chromakey
 Device type: 25
 Supported sizes: 64x32 => 704x480
 Inputs: 2
  0: Composite:  (tuner:0, norm:auto)
  1: S-Video:  (tuner:0, norm:auto)
Using input 'S-Video'
Selected input hasn't got a tuner!
[V] filefmt:9  fourcc:0x4247520F  size:352x288  fps:29.97  ftime:=0.0334
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio: 176400->176400 (1411.2 kbit)
Selected audio codec: [pcm] afm:pcm (Uncompressed PCM)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1  (-1=autodetect) osd: 1
==========================================================================
Opening video decoder: [raw] RAW Uncompressed Video
VDec: vo config request - 352 x 288 (preferred csp: BGR 15-bit)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
VDec: using BGR 15-bit as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 4
SwScaler: reducing / aligning filtersize 1 -> 1
SwScaler: reducing / aligning filtersize 9 -> 8

SwScaler: BICUBIC scaler, from BGR 15-bit to Planar YV12 using MMX
Selected video codec: [rawbgr15] vfm:raw (RAW BGR15)
==========================================================================
MP3 audio selected
Building audio filter chain for 44100Hz/2ch/16bit -> 44100Hz/2ch/16bit...
Writing AVI header...
Forcing audio preload to 0, max pts correction to 0

ioctl mcapture failed: Invalid argument

<snipped several lines...>

ioctl mcapture failed: Invalid argument

ioctl mcapture failed: Invalid argument
Pos:   0.0s      1f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
ioctl mcapture failed: Invalid argument

ioctl mcapture failed: Invalid argument

<snipped several more lines...>

ioctl mcapture failed: Invalid argument

ioctl mcapture failed: Invalid argument

ioctl mcapture failed: Invalid argument
Pos:   0.0s      2f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
ioctl mcapture failed: Invalid argument
Pos:   0.0s      3f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
ioctl mcapture failed: Invalid argument
Pos:   0.0s      4f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
ioctl mcapture failed: Invalid argument
Pos:   0.0s      5f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
ioctl mcapture failed: Invalid argument

ioctl mcapture failed: Invalid argument

<snipped a whole whack, then a ctl 'c' .. and presto:>


ioctl mcapture failed: Invalid argument
Pos:   0.1s     23f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
ioctl mcapture failed: Invalid argument
Pos:   0.1s     24f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
ioctl mcapture failed: Invalid argument
Pos:   0.1s     25f ( 0%)   0fps Trem:   0min   0mb  A-V:0.000 [0:0]
Writing AVI index...
Fixing AVI header...

Video stream:  299.539 kbit/s  (37442 bps)  size: 3748 bytes  0.100 secs  25 
frames

Audio stream:  111.781 kbit/s  (13972 bps)  size: 1460 bytes  0.104 secs

ioctl mcapture failed: Invalid argument
  MJP: returning!