Destructor.

Closes the audio clip and frees resources.

Clears the playback window.

Playback returns to playing the entire clip. A subsequent call to ConvertL() results in the entire source audio being converted.

Closes the current audio clip.

Returns the controller implementation information associated with the current controller.

Performs the conversion from the source audio format to the destination.

When conversion is complete, successfully or otherwise, the client is notified by MMdaObjectStateChangeObserver::MoscoStateChangeEvent(). The callback is initiated by this function providing it with state change information and error codes.

Crops the audio clip from the start of the file to the current position. The audio data prior to the current position is discarded.

The effects of the function cannot be undone.

The function is synchronous and can leave if there is a problem. The leave code depends on the configuration.

Crops the current clip from the current position. The remainder of the clip is discarded.

The effects of the function cannot be undone. The function is synchronous and can leave if there is a problem. The leave code depends on the configuration.

Send a asynchronous custom command to the controller.

Note: This method will return immediately. The RunL of the active object owning the aStatus parameter will be called when the command is completed by the controller framework.

Send a asynchronous custom command to the controller.

Note: This method will return immediately. The RunL of the active object owning the aStatus parameter will be called when the command is completed by the controller framework.

Sends a synchronous custom command to the controller.

Sends a synchronous custom command to the controller.

Returns the bit rate of the destination audio clip.

Returns the data type of the destination audio clip.

Returns the format of the destination audio clip.

Returns the number of channels the destination audio clip contains.

Returns the sample rate of the conversion destination.

Returns the duration of the audio clip.

Gets a list of the supported bit rates for the conversion destination.

Returns a list of the supported number of channels for conversion.

For example, 1 for mono, 2 for stereo and so on.

Gets a list of supported conversion sample rates. This is a list of the sample rates that the conversion destination can take.

Returns a list of the supported data types for the conversion destination.

Constructs and initialises a new instance of the audio converter for converting audio sample data from one format to another.

The function leaves if the audio converter object cannot be created.

Opens source and target files (both of which must already exist) so that audio sample data can be extracted from the source file, converted and appended to the target file.

When opening is complete, successfully or otherwise, the client is notified by MMdaObjectStateChangeObserver::MoscoStateChangeEvent(). The callback is initiated by this function providing it with state change information and error codes.

Opens an existing audio file so that audio sample data can be extracted from it, converted and placed into the target audio object.

When opening is complete, successfully or otherwise, the client is notified by MMdaObjectStateChangeObserver::MoscoStateChangeEvent(). The callback is initiated by this function providing it with state change information and error codes.

Opens an audio clip for conversion.

Opens source and target audio objects and specifies controller and audio format and codec information.

When opening is complete, successfully or otherwise, the client is notified by MMdaObjectStateChangeObserver::MoscoStateChangeEvent(). The callback is initiated by this function providing it with state change information and error codes.

This function is mapped to ConvertL(). ConvertL() should be used instead.

Returns the current position in the audio clip. The position is defined in terms of a time interval measured from the beginning of the audio sample data.

This function is mapped to ConvertL. ConvertL() should be used instead.

Returns the amount of recording time available to the current clip.

Sets the bit rate of the destination audio clip.

The bit rate must be one of the supported bit rates of the audio target. Use GetSupportedConversionBitRatesL() to retrieve a list of supported bit rates.

Sets the data type of the destination audio clip.

Sets the format of the destination audio clip.

The UID (aFormatUid) corresponds to the UID of the destination format to use.

Sets the number of channels the destination audio clip contains.

The number of channels must be one of the values returned by GetSupportedConversionNumberOfChannelsL().

Sets the sample rate for the conversion destination.

The sample rate must be one of the supported sample rates of the audio target. Use GetSupportedConversionSampleRatesL() to retrieve a list of supported sample rates. This function should not be used if the audio clip already exists; that is, in the "Open and Append" scenario, when the function's behaviour is undefined.

Sets the maximum size of an audio clip.

This function is provided so that applications such as recorders and converters can limit the amount of file storage/memory that should be allocated.

Sets a window for playback.

The window is defined in terms of a start and end time. A subsequent call to ConvertL() results in just the data within the window being converted.

Sets the current position in the audio clip.

A subsequent call to ConvertL() starts conversion from this new position.

Sets the number of repetitions for playback. This is unsupported for CMdaConvertUtility as there is no playback facility. It is provided only for binary compatibility.

Set the priority of the controller's sub thread.

This can be used to increase the responsiveness of the audio plugin to minimise any lag in processing. This function should be used with care as it may have knock-on effects elsewhere in the system.

Returns the bit rate of the source audio clip.

Returns the data type of the source audio clip.

Returns the format of the source audio clip.

Returns the number of channels used by the conversion source.

Returns the sample rate of the source audio clip.

Returns the current utility state.

Stops the current operation (playback/recording/conversion).

When conversion has been stopped, successfully or otherwise, the client is notified by MMdaObjectStateChangeObserver::MoscoStateChangeEvent(). The callback is initiated by this function providing it with state change information and error codes.

Ensures that any subsequent calls to OpenXYZ() will create controllers that share a heap.

The default behaviour is that for each converter utility a controller with its own heap is created. Each heap uses a chunk, so using this function avoids situations where the number of chunks per process is limited. The default behaviour is generally to be preferred, and should give lower overall memory usage. However, if many controllers are to be created for a particular thread, then this function should be used to prevent running out of heaps or chunks.