83 struct audio_policy {  struct
89     int (*set_device_connection_state)(struct audio_policy *pol,  argument
96                                             const struct audio_policy *pol,
102     void (*set_phone_state)(struct audio_policy *pol, audio_mode_t state);  argument
105     void (*set_ringer_mode)(struct audio_policy *pol, uint32_t mode,  argument
109     void (*set_force_use)(struct audio_policy *pol,  argument
114     audio_policy_forced_cfg_t (*get_force_use)(const struct audio_policy *pol,  argument
119     void (*set_can_mute_enforced_audible)(struct audio_policy *pol,  argument
123     int (*init_check)(const struct audio_policy *pol);  argument
131     audio_io_handle_t (*get_output)(struct audio_policy *pol,  argument
141     int (*start_output)(struct audio_policy *pol,  argument
148     int (*stop_output)(struct audio_policy *pol,  argument
154     void (*release_output)(struct audio_policy *pol, audio_io_handle_t output);  argument
158     audio_io_handle_t (*get_input)(struct audio_policy *pol, audio_source_t inputSource,  argument
165     int (*start_input)(struct audio_policy *pol, audio_io_handle_t input);  argument
168     int (*stop_input)(struct audio_policy *pol, audio_io_handle_t input);  argument
171     void (*release_input)(struct audio_policy *pol, audio_io_handle_t input);  argument
179     void (*init_stream_volume)(struct audio_policy *pol,  argument
186     int (*set_stream_volume_index)(struct audio_policy *pol,  argument
191     int (*get_stream_volume_index)(const struct audio_policy *pol,  argument
198     int (*set_stream_volume_index_for_device)(struct audio_policy *pol,  argument
204     int (*get_stream_volume_index_for_device)(const struct audio_policy *pol,  argument
210     uint32_t (*get_strategy_for_stream)(const struct audio_policy *pol,  argument
214     audio_devices_t (*get_devices_for_stream)(const struct audio_policy *pol,  argument
218     audio_io_handle_t (*get_output_for_effect)(struct audio_policy *pol,  argument
221     int (*register_effect)(struct audio_policy *pol,  argument
228     int (*unregister_effect)(struct audio_policy *pol, int id);  argument
230     int (*set_effect_enabled)(struct audio_policy *pol, int id, bool enabled);  argument
232     bool (*is_stream_active)(const struct audio_policy *pol,  argument
236     bool (*is_stream_active_remotely)(const struct audio_policy *pol,  argument
240     bool (*is_source_active)(const struct audio_policy *pol,  argument
244     int (*dump)(const struct audio_policy *pol, int fd);  argument
247     bool (*is_offload_supported)(const struct audio_policy *pol,  argument
434                                struct audio_policy **ap);
437                                 struct audio_policy *ap);