mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2026-05-30 21:37:53 -04:00
70 lines
2 KiB
C
70 lines
2 KiB
C
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/* External Volume Control */
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/* SPDX-FileCopyrightText: Copyright © 2026 Arun Raghavan */
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/* SPDX-FileCopyrightText: Copyright © 2026 Julian Bouzas */
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/* SPDX-License-Identifier: MIT */
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#ifndef ACP_EXT_VOLUME_H
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#define ACP_EXT_VOLUME_H
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#include <stdint.h>
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#include <spa/param/audio/volume.h>
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#include <spa/pod/event.h>
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#define MAX_PORTS 256
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typedef struct pa_cvolume pa_cvolume;
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typedef void (*ext_volume_notifier_t) (void *data, struct spa_event *event);
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struct caps_reply {
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int res;
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enum spa_audio_volume_control_flags caps;
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};
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struct mute_reply {
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int res;
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bool mute;
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};
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struct vols_reply {
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int res;
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uint32_t channels;
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double values[SPA_AUDIO_MAX_CHANNELS];
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};
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struct spa_acp_ext_volume {
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bool initialized;
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enum spa_audio_volume_control_flags flags;
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ext_volume_notifier_t notifier_cb;
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void *notifier_data;
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struct caps_reply caps_reply;
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struct mute_reply mute_replies[MAX_PORTS];
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struct vols_reply vols_replies[MAX_PORTS];
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};
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int spa_acp_ext_volume_init(struct spa_acp_ext_volume *ext_volume, const char *device,
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ext_volume_notifier_t notifier_cb, void *notifier_data);
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int spa_acp_ext_volume_read_volume(struct spa_acp_ext_volume *ext_volume,
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const char *device, const char *port_name, uint32_t port_index, pa_cvolume *cvol);
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int spa_acp_ext_volume_write_volume_absolute(struct spa_acp_ext_volume *ext_volume,
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const char *device, const char *port_name, uint32_t port_index, pa_cvolume *cvol);
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int spa_acp_ext_volume_write_volume_relative(struct spa_acp_ext_volume *ext_volume,
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const char *device, const char *port_name, uint32_t port_index, float step);
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int spa_acp_ext_volume_read_mute(struct spa_acp_ext_volume *ext_volume,
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const char *device, const char *port_name, uint32_t port_index, bool *mute);
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int spa_acp_ext_volume_write_mute_value(struct spa_acp_ext_volume *ext_volume,
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const char *device, const char *port_name, uint32_t port_index, bool mute);
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int spa_acp_ext_volume_write_mute_toggle(struct spa_acp_ext_volume *ext_volume,
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const char *device, const char *port_name, uint32_t port_index);
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#endif /* ACP_EXT_VOLUME_H */
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