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IAVTransport::Play (Windows Embedded CE 6.0)

  • Article

1/6/2010

This method starts output of the media associated with this AVTransport instance, using the specified play speed.

Syntax

virtual DWORD Play(
  LPCWSTR pszSpeed
) = 0;

Parameters

  • pszSpeed
    [in] Speed of playback, in a string format that represents a fraction of normal speed. For example, 1, 1/2, 2, -1, and so on. Corresponds to the TransportPlaySpeed state variable. Supported speeds are stored in the AllowedValueList state variable.

Return Value

Custom implementations can return appropriate error codes. Should return SUCCESS_AV if the method succeeds. Otherwise, should return an error code defined in WinError.h or UPnP.h, or one of the UPnP AV-specific return values specified in UPnPAVError, especially the following errors documented for this action in the AVTransport DCP documentation:

  • ERROR_AV_UPNP_AVT_INVALID_TRANSITION
  • ERROR_AV_UPNP_AVT_NO_CONTENTS
  • ERROR_AV_UPNP_AVT_READ_ERROR
  • ERROR_AV_UPNP_AVT_UNSUPPORTED_PLAY_FORMAT
  • ERROR_AV_UPNP_AVT_TRANSPORT_LOCKED
  • ERROR_AV_UPNP_AVT_ILLEGAL_MIME
  • ERROR_AV_UPNP_AVT_CONTENT_BUSY
  • ERROR_AV_UPNP_AVT_RESOURCE_NOT_FOUND
  • ERROR_AV_UPNP_AVT_UNSUPPORTED_PLAY_SPEED
  • ERROR_AV_UPNP_AVT_INVALID_INSTANCE_ID

Remarks

This method corresponds to the AVTransport service's Play action.

For more information about the actions in the AVTransport service, see UPnP AV DCP Documentation.

Requirements

Header av_upnp.h
Library Av_upnp.lib
Windows Embedded CE Windows CE 5.0 and later

See Also

Reference

IAVTransport
UPnPAVError