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