[MEncoder-users] FW: mplayer - problem recording sound

[GAEREMYNCK Matthieu]

Line and capture have been set to "capture" in the alsamixer.

Hereby some more info from what is happening :

mg at srvubu:~$ mencoder tv:// -tv
driver=v4l2:width=320:height=240:forceaudio:volume=100 -ovc lavc -oac copy -o output.avi MEncoder 2:0.99+1.0pre7try2+cvs20060117-0ubuntu8 (C) 2000-2006 MPlayer Team
CPU: Intel Celeron 2/Pentium III Coppermine,Geyserville (Family: 6,
Stepping: 1)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0 Compiled with runtime CPU detection.
93 audio & 211 video codecs
success: format: 9  data: 0x0 - 0x0
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 (Hauppauge (bt878)) 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: 0 Current format: YVU420
v4l2: current audio mode is : MONO
Audio block size too low, setting to 8192!
[V] filefmt:9  fourcc:0x32315659  size:320x240  fps:25.00  ftime:=0.0400 Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1 ==========================================================================
Opening video decoder: [raw] RAW Uncompressed Video
VDec: vo config request - 320 x 240 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is undefined - no prescaling applied.
videocodec: libavcodec (320x240 fourcc=34504d46 [FMP4]) Selected video codec: [rawyv12] vfm: raw (RAW YV12) ==========================================================================
Building audio filter chain for 44100Hz/1ch/s16le -> 0Hz/0ch/??...
audiocodec: framecopy (format=1 chans=1 rate=44100 bits=16 B/s=88200
sample-2)
Forcing audio preload to 0, max pts correction to 0
Writing header...1f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.
Pos:   3.1s     77f ( 0%) 21.06fps Trem:   0min   0mb  A-V:0.000 [959:705]]
Flushing video frames
Writing index...
Writing header...
ODML: Aspect information not (yet?) available or unspecified, not writing vprp header.

Video stream:  959.665 kbit/s  (119958 B/s)  size: 369471 bytes  3.080 secs
77 frames

Audio stream:  705.600 kbit/s  (88200 B/s)  size: 308700 bytes  3.500 secs
v4l2: 90 frames successfully processed, 0 frames dropped.


***** so it seems I captured some audio ?


mg at srvubu:~$ mplayer output.avi
MPlayer 2:0.99+1.0pre8-0ubuntu4 (C) 2000-2006 MPlayer Team
CPU: Intel Celeron 2/Pentium III Coppermine,Geyserville (Family: 6, Model: 
8, Stepping: 1)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0 Compiled with runtime CPU detection.


93 audio & 211 video codecs
Linux RTC init error in ioctl (rtc_irqp_set 1024): Permission denied Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0: No such file or directory 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 output.avi.
AVI file format detected.
VIDEO:  [FMP4]  320x240  24bpp  25.000 fps  959.7 kbps (117.1 kbyte/s) Clip info:
Software: MEncoder 2:0.99+1.0pre7try2+cvs20060117-0ubuntu8
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
AUDIO: 44100 Hz, 1 ch, s16le, 705.6 kbit/100.00% (ratio: 88200->88200) Selected audio codec: [pcm] afm: pcm (Uncompressed PCM) ==========================================================================
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4) ==========================================================================
alsa-init: using device default
alsa: 44100 Hz/1 channels/2 bpf/32768 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 44100Hz 1ch s16le (2 bytes per sample) Starting playback...
VDec: vo config request - 320 x 240 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 320x240 => 320x240 Planar YV12
alsa-uninit: pcm closed 0.004 ct:  0.000  71/ 71 27%  3%  1.2% 7 0


When I play it it detetcts that there is audio but I still don't hear anything. Did I record an empty audio track ?
What am I doing wrong ?




Sincerely,


Matthieu Gaeremynck

System Engineer
>DF/MIS/SM
>@PEOC (The Consortium) 
>
>Rue de la Fusée, 96
>B-1130 Brussels
>Belgium
>
*:+32 2 729 31 38 
*: Matthieu.Gaeremynck at eurocontrol.int

 

>-----Original Message-----
>From: mencoder-users-bounces at mplayerhq.hu 
>[mailto:mencoder-users-bounces at mplayerhq.hu] On Behalf Of RC
>Sent: Thursday 21 September 2006 18:49
>To: MEncoder usage discussions
>Subject: Re: [MEncoder-users] FW: mplayer
>
>On Thu, 21 Sep 2006 16:10:30 +0200
>Stefan Sassenberg <stefan.sassenberg at gmx.de> wrote:
>
>> "line" is probably the device you must select for capturing.
>
>Actually, both the "Line" *and* "Capture" devices must be set 
>to "Captur" in alsamixer.
>_______________________________________________
>MEncoder-users mailing list
>MEncoder-users at mplayerhq.hu
>http://lists.mplayerhq.hu/mailman/listinfo/mencoder-users
>
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