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#ifndef __af_control_h
#define __af_control_h
/*********************************************
// Control parameters
*/
/* The control system is divided into 3 levels
mandatory calls - all filters must answer to all of these
optional calls - are optional
filter specific calls - applies only to some filters
*/
#define AF_CONTROL_MANDATORY_BASE 0
#define AF_CONTROL_OPTIONAL_BASE 100
#define AF_CONTROL_FILTER_SPECIFIC_BASE 200
// MANDATORY CALLS
/* Reinitialize filter. The optional argument contains the new
configuration in form of a af_data_t struct. If the filter does not
support the new format the struct should be changed and AF_FALSE
should be returned. If the incoming and outgoing data streams are
identical the filter can return AF_DETACH. This will remove the
filter. */
#define AF_CONTROL_REINIT 01 + AF_CONTROL_MANDATORY_BASE
// OPTIONAL CALLS
/* Called just after creation with the af_cfg for the stream in which
the filter resides as input parameter this call can be used by the
filter to initialize itself using commandline parameters */
#define AF_CONTROL_POST_CREATE 1 + AF_CONTROL_OPTIONAL_BASE
// Called just before destruction of a filter
#define AF_CONTROL_PRE_DESTROY 2 + AF_CONTROL_OPTIONAL_BASE
// FILTER SPECIFIC CALLS
// Set output rate in resample
#define AF_CONTROL_RESAMPLE 1 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Set output format in format
#define AF_CONTROL_FORMAT 2 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Set number of output channels in channels
#define AF_CONTROL_CHANNELS 3 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Set delay length in delay
#define AF_CONTROL_DELAY_SET_LEN 4 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Volume
// Set volume level, arg is a float* with the volume for all the channels
#define AF_CONTROL_VOLUME_SET 5 + AF_CONTROL_FILTER_SPECIFIC_BASE
/* Get volume level for all channels, arg is a float* that will
contain the volume for all the channels */
#define AF_CONTROL_VOLUME_GET 6 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Turn volume control on and off, arg is binary
#define AF_CONTROL_VOLUME_ON_OFF 7 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Turn soft clipping of the volume on and off, arg is binary
#define AF_CONTROL_VOLUME_SOFTCLIP 8 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Get the probed power level for all channels, arg is a float*
#define AF_CONTROL_VOLUME_PROBE_GET 9 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Get the maximum probed power level for all channels, arg is a float*
#define AF_CONTROL_VOLUME_PROBE_GET_MAX 10 + AF_CONTROL_FILTER_SPECIFIC_BASE
// Turn probing on and off, arg is binary
#define AF_CONTROL_VOLUME_PROBE_ON_OFF 11 + AF_CONTROL_FILTER_SPECIFIC_BASE
#endif /*__af_control_h */
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