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Re: audio pour une quickcam logitech : Messenger vs. Express...

Le 12.11.2005 21:03:14, fred a écrit :

"Jean-Luc Coulon (f5ibh)" <jean.luc.coulon@gmail.com> a écrit :

> J'ai une quickcam messenger et le micro intégré fonctionne.
> Il faut le module snd-usb-audio
Ah.

Y a eu un thread là-dessus sur la liste linux-driver-quickcam.general,
qui s'est conclu par ce que j'ai cité plus haut.

1) tu utilises qc-usb-messenger ou qc-usb-source, paquet Debian ?


qc-usb-messenger : c'est une messenger. usb id : 046d:08f0


qc-usb-messenger est prévu pour Messenger, qc-usb-source pour Express.

2) qcset me donne :
Name          : Logitech QuickCam USB
Type          : capture
Channels      : 1
Audio devices : 0                             <--- pas glop
Maxsize       : 324,248
Minsize       : 160,120

Overlay coords: 1532713819,1532713819
Capture size  : 324,248
Chromakey     : 1532713819
Flags         :
[jean-luc@tangerine] % qcset -i ~ 
Name          : Logitech QuickCam USB
Type          : capture
Channels      : 1
Audio devices : 0
  ***************  Et pourtant ...

Maxsize       : 324,248
Minsize       : 160,120

Overlay coords: 1532713819,1532713819
Capture size  : 324,248
Chromakey     : 1532713819
Flags         :

Channel       : 0
Name          : Camera
Tuners        : 0
Flags         :
Type          : camera
Norm          : 0

Brightness    : 32768
Hue           : 32768
Color         : 32768
Contrast      : 32768
Whiteness     : 32768
Depth         : 24
Palette       : RGB888 packed into 24bit words.

sudo lsusb -v

Bus 1 Device 4: ID 046d:08f0 Logitech, Inc. QuickCam Messenger
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol       255 Vendor Specific Protocol
  bMaxPacketSize0         8
  idVendor           0x046d Logitech, Inc.
  idProduct          0x08f0 QuickCam Messenger
  bcdDevice            1.00
  iManufacturer           0
  iProduct                1 Camera
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          173
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0000  1x 0 bytes
        bInterval              16
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       1
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x03ff  1x 1023 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0001  1x 1 bytes
        bInterval              16
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           0
      bInterfaceClass         1 Audio
      bInterfaceSubClass      1 Control Device
      bInterfaceProtocol      0
      iInterface              0
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      1 (HEADER)
        bcdADC               2.00
        wTotalLength           39
        bInCollection           1
        baInterfaceNr( 0)       2
      AudioControl Interface Descriptor:
        bLength                12
        bDescriptorType        36
        bDescriptorSubtype      2 (INPUT_TERMINAL)
        bTerminalID             1
        wTerminalType      0x0201 Microphone
                                  **************<<<------------
        bAssocTerminal          0
        bNrChannels             1
        wChannelConfig     0x0000
        iChannelNames           0
        iTerminal               0
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      6 (FEATURE_UNIT)
        bUnitID                 2
        bSourceID               1
        bControlSize            2
        bmaControls( 0)      0x43
        bmaControls( 0)      0x00
          Mute
          Volume
          Automatic Gain
        iFeature                0
      AudioControl Interface Descriptor:
        bLength                 9
        bDescriptorType        36
        bDescriptorSubtype      3 (OUTPUT_TERMINAL)
        bTerminalID             3
        wTerminalType      0x0101 USB Streaming
        bAssocTerminal          0
        bSourceID               2
        iTerminal               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0000  1x 0 bytes
        bInterval               1
        bRefresh                0
        bSynchAddress           0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       1
      bNumEndpoints           1
      bInterfaceClass         1 Audio
      bInterfaceSubClass      2 Streaming
      bInterfaceProtocol      0
      iInterface              0
      AudioStreaming Interface Descriptor:
        bLength                 7
        bDescriptorType        36
        bDescriptorSubtype      1 (AS_GENERAL)
        bTerminalLink           3
        bDelay                  1 frames
        wFormatTag              1 PCM
      AudioStreaming Interface Descriptor:
        bLength                20
        bDescriptorType        36
        bDescriptorSubtype      2 (FORMAT_TYPE)
        bFormatType             1 (FORMAT_TYPE_I)
        bNrChannels             1
        bSubframeSize           2
        bBitResolution         16
        bSamFreqType            4 Discrete
        tSamFreq[ 0]         8000
        tSamFreq[ 1]        11025
        tSamFreq[ 2]        16000
        tSamFreq[ 3]        22050
      Endpoint Descriptor:
        bLength                 9
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            1
          Transfer Type            Isochronous
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0034  1x 52 bytes
        bInterval               1
        bRefresh                0
        bSynchAddress           0
        AudioControl Endpoint Descriptor:
          bLength                 7
          bDescriptorType        37
          bDescriptorSubtype      1 (EP_GENERAL)
          bmAttributes         0x01
            Sampling Frequency
          bLockDelayUnits         0 Undefined
          wLockDelay              0 Undefined
Device Status:     0x0000
  (Bus Powered)
qcset dit non pour l'audio mais on retrouve bien le micro dans le lsusb Même leswitch au dessus est présetn at actif (mais je en sais pas quoi en faire). 

Lorsque je charge le module, j'ai :

kernel: quickcam [21.286122]: struct quickcam size: 4328
kernel: quickcam: QuickCam USB camera found (driver version QuickCam Messenger/Communicate USB $Date: 2004/12/30 10:00:00 $) kernel: quickcam: Kernel:2.6.14-k8-4 bus:1 class:FF subclass:FF vendor:046D product:08F0<7>ieee1394: Host added: ID:BUS[0-00:1023] GUID[00e0180000ac308c] 
kernel: quickcam [21.321273]: poisoning qc in qc_usb_init
kernel: quickcam [21.325014]: E00A contains 08F0
kernel: quickcam: Sensor VV6450 detected
kernel: quickcam [21.334603]: Quickcam snapshot button registered on usb-0000:00:10.0-2/input0 
kernel: quickcam: Registered device: /dev/video0
kernel: usbcore: registered new driver quickcam

On voit que udev a créé une nouvelle entrée /dev/video0
À cette entrée correspond le ... microphone.
Si je fais un cat < /dev/video0 > /dev/dsp, je peux entendre dasn mes enceintes, avec un léger retard, ce qui se dit dans le micro. 

Jean-Luc

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