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Hi, |
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|
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may be one can help me... |
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|
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I am using a webcam (lsusb: Bus 001 Device 002: ID 1415:2000 Nam Tai |
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E&E Products Ltd. or OmniVision Technologies, Inc. Sony Playstation |
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Eye) on my window board to capture videos from the crow, which often |
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visits me in summer. |
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|
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The PS-Eye cam has one (four?) microphones to capture audio and |
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delivers up to 60 fps. |
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|
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The setup was working last summer with video AND audio. |
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|
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This summer only video is captured. The resulting video file |
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seems to contain a "null audio" (no sound samples other than |
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zeroes...) |
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|
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When playing the file with mplayer, this is the output on the terminal |
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(the video plays ok beside the fact that there is no sound to hear...) |
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|
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[aviheader] Video stream found, -vid 0 |
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[aviheader] Audio stream found, -aid 1 |
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|
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Badly interleaved AVI file detected - switching to -ni mode... |
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AVI: No audio stream found -> no sound. |
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VIDEO: [MJPG] 640x480 24bpp 60.094 fps 29695.7 kbps (3625.0 kbyte/s) |
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Clip info: |
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Title: |
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Software: guvcview-1.4.5 |
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Comments: Sun May 8 09:51:35 2011 |
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========================================================================== |
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Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family |
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Selected video codec: [ffmjpeg] vfm: ffmpeg (FFmpeg MJPEG) |
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========================================================================== |
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========================================================================== |
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Opening audio decoder: [pcm] Uncompressed PCM audio decoder |
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AUDIO: 44100 Hz, 1 ch, s16le, 705.6 kbit/100.00% (ratio: 88200->88200) |
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Selected audio codec: [pcm] afm: pcm (Uncompressed PCM) |
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========================================================================== |
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AO: [alsa] 48000Hz 1ch s16le (2 bytes per sample) |
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Starting playback... |
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Movie-Aspect is undefined - no prescaling applied. |
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VO: [gl2] 640x480 => 640x480 Planar 422P |
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[gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is ok!) |
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[gl2] antialiasing off |
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[gl2] bilinear linear |
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A: -0.0 V: 1.3 A-V: -1.265 ct: -0.126 77/ 77 14% 88% 0.0% 0 0 |
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Capturing not enabled (forgot -capture parameter?) |
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A: -0.0 V: 14.8 A-V:-14.844 ct: -1.486 893/893 10% 89% 0.0% 0 0 |
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|
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What can I do/check/test/experiment to get back the audio again....? |
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|
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Thank you very much for any help in advance! |
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|
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Have a nice sunday! |
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Best regards |
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mcc |