IAMExtTransport::SetTransportAudioParameters method (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The SetTransportAudioParameters assigns audio parameter settings for external transport.
This method is not implemented.
Syntax
HRESULT SetTransportAudioParameters(
[in] long Param,
[in] long Value
);
Parameters
[in] Param
Specifies the audio parameter you want to set as a long integer.
| Value | Description |
|---|---|
| ED_TRANSAUDIO_ENABLE_OUTPUT | Enable audio channel(s) for output. |
| ED_TRANSAUDIO_ENABLE_RECORD | Enable audio channel(s) for recording. |
| ED_TRANSAUDIO_ENABLE_SELSYNC | Enable audio channel(s) for selsync recording. |
| ED_TRANSAUDIO_SET_MONITOR | Set the monitor output source. |
| ED_TRANSAUDIO_SET_SOURCE | Set the active audio input. |
[in] Value
Specifies which audio channel or channels is assigned the parameter as a long integer.
Return value
When this method succeeds, it returns S_OK. Otherwise it returns an HRESULT error code.
Remarks
Specify an exact channel or channels in Value by selecting ED_AUDIO_1 through ED_AUDIO_24 (use a bitwise OR to combine), or all channels by selecting ED_AUDIO_ALL.
DV Implementation
MSDV does not support this method. It returns E_NOTIMPL.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |