[wdmaudiodev] AVStream audio render issue

  • From: r02525073@xxxxxxxxxx
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Mon, 23 Sep 2019 15:27:15 +0800

Dear all,

I am developing an audio render using AVStream.
It is now correctly displayed on the Playback Device.
Then I used Graphedit to test.
When the render filter in the "Audio Renderers" category is selected, the DispatchProcess of the pin is not called.
I suspect that the pin did not receive the data, so the DispatchProcess was not called.
But if I use "WDM Streaming Rendering Device" then everything works fine.
I have confirmed that the state of the pin is already "KSSTATE_RUN".

Please help me solve this problem, thank you.

Here is the pin DESCRIPTOR for this driver:

static
const
KSPIN_DESCRIPTOR_EX
ksCaptureFilterPinDescriptors[] = {

    { //Audio Input Pin
      &ksCapturePinDispatch,                    // Dispatch
      NULL,                                     // AutomationTable
      { // PinDescriptor
        DEFINE_KSPIN_DEFAULT_INTERFACES,        // Interfaces
        DEFINE_KSPIN_DEFAULT_MEDIUMS,           // Mediums
        SIZEOF_ARRAY(ksAudioPinDataRanges),     // Range Count
        ksAudioPinDataRanges,                   // Ranges
        KSPIN_DATAFLOW_IN,                     // Dataflow
KSPIN_COMMUNICATION_SINK, // Communication (both source and sink)
        &KSCATEGORY_AUDIO,                      // Category
        NULL, // Name
        0                                       // Reserved
      },
KSPIN_FLAG_FIXED_FORMAT | KSPIN_FLAG_RENDERER | KSPIN_FLAG_PROCESS_IN_RUN_STATE_ONLY, // Flags
      1,                                        // Instances Possible
      0,                                        // Instances Necessary
      &ksAudioPinAllocatorFraming,              // Allocator Framing
      reinterpret_cast<PFNKSINTERSECTHANDLEREX>(CapturePin::IntersectHandler)
    },

    { // Audio Output Pin
      NULL,                                     // Dispatch
      NULL,                                     // AutomationTable
      { // PinDescriptor
        DEFINE_KSPIN_DEFAULT_INTERFACES,        // Interfaces
        DEFINE_KSPIN_DEFAULT_MEDIUMS,           // Mediums
SIZEOF_ARRAY(ksPinDataRanges), // Range Count
        ksPinDataRanges,                                   // Ranges
        KSPIN_DATAFLOW_OUT,                      // Dataflow
        KSPIN_COMMUNICATION_NONE,               // Communication
        &KSNODETYPE_LINE_CONNECTOR,             // Category
        NULL, // Name
        0                                       // Reserved
      },
      KSPIN_FLAG_DO_NOT_USE_STANDARD_TRANSPORT, // Flags
      1,                                        // Instances Possible
      0,                                        // Instances Necessary
      NULL,                                     // Allocator Framing
      NULL                                      // IntersectHandler
    }

};

******************

WDMAUDIODEV addresses:
Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx
Subscribe:    mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe
Unsubscribe:  mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe
Moderator:    mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx

URL to WDMAUDIODEV page:
http://www.wdmaudiodev.com/

Other related posts: