Hello Matt,I have the same problem than you with my portcls driver and multichannel devices with type KSNODETYPE_LINE_CONNECTOR.
My PROPOSEDATAFORMAT handler works with MinSize=sizeof(KSDATAFORMAT_WAVEFORMATEX) and handles
WAVEFORMATEXTENSIBLE and WAVEFORMATEX formats.I noticed that with speaker endpoints always WAVEFORMATEXTENSIBLE formats (with ChannelMasks) are passed; With my KSNODETYPE_LINE_CONNECTOR, the handler is always called with WAVEFORMATEX formats (no ChannelMask).
When I configure a multichannel format in the mixer (e.g. 6 channels 16 bits 44100 kHz), MediaPlayer is able to play stereo files (expanded to the selected stream format : 6 channels !), but MediaPlayer is refusing to play a 6 channel Wave file !!
Markus. Matt Gonzalez wrote:
So it looks like I need to set the MinSize of my KSPROPERTY_ITEM to sizeof(KSDATAFORMAT)+sizeof(WAVEFORMATEXTENSIBLE). Using sizeof(KSDATAFORMAT_WAVEFORMATEX) was wrong, since that doesn't include the extra fields for WAVEFORMATEXTENSIBLE.DVD playback still isn't working, but at least this is improved. ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribeUnsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribeModerator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/
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