Kfir Lavi <lavi.k...@gmail.com> [11-05-08 11:32]:
> On Sun, May 8, 2011 at 12:00 PM, <meino.cra...@gmx.de> wrote:
>
> > Hi,
> >
> > may be one can help me...
> >
> > I am using a webcam (lsusb: Bus 001 Device 002: ID 1415:2000 Nam Tai
> > E&E Products Ltd. or OmniVision Technologies, Inc. Sony Playstation
> > Eye) on my window board to capture videos from the crow, which often
> > visits me in summer.
> >
> > The PS-Eye cam has one (four?) microphones to capture audio and
> > delivers up to 60 fps.
> >
> > The setup was working last summer with video AND audio.
> >
> > This summer only video is captured. The resulting video file
> > seems to contain a "null audio" (no sound samples other than
> > zeroes...)
> >
> > When playing the file with mplayer, this is the output on the terminal
> > (the video plays ok beside the fact that there is no sound to hear...)
> >
> > [aviheader] Video stream found, -vid 0
> > [aviheader] Audio stream found, -aid 1
> >
> > Badly interleaved AVI file detected - switching to -ni mode...
> > AVI: No audio stream found -> no sound.
> > VIDEO: [MJPG] 640x480 24bpp 60.094 fps 29695.7 kbps (3625.0
> > kbyte/s)
> > Clip info:
> > Title:
> > Software: guvcview-1.4.5
> > Comments: Sun May 8 09:51:35 2011
> >
> > ==========================================================================
> > Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
> > Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG)
> >
> > ==========================================================================
> >
> > ==========================================================================
> > 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)
> >
> > ==========================================================================
> > AO: [alsa] 48000Hz 1ch s16le (2 bytes per sample)
> > Starting playback...
> > Movie-Aspect is undefined - no prescaling applied.
> > VO: [gl2] 640x480 => 640x480 Planar 422P
> > [gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is
> > ok!)
> > [gl2] antialiasing off
> > [gl2] bilinear linear
> > A: -0.0 V: 1.3 A-V: -1.265 ct: -0.126 77/ 77 14% 88% 0.0% 0 0
> > Capturing not enabled (forgot -capture parameter?)
> > A: -0.0 V: 14.8 A-V:-14.844 ct: -1.486 893/893 10% 89% 0.0% 0 0
> >
> > What can I do/check/test/experiment to get back the audio again....?
> >
> > Thank you very much for any help in advance!
> >
> > Have a nice sunday!
> > Best regards
> > mcc
> >
> >
> > From your output it shows that the sound is not null.
> Does your sound works playing other files (alsamixer)?
> Can you record now a picture with the webcam and play it with sound after?
>
> Kfir
Hi Kfir,
thank you for your reply! :)
sorry, English isn't my mothers tongue...
When playing other videos there is no problem with the sound.
What did you mean with
"Can you record now a picture with the webcam and play it with sound after?"
mcc
