mirror of https://github.com/mpv-player/mpv
121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_AUDIO_OUT_H
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#define MPLAYER_AUDIO_OUT_H
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#include <stdbool.h>
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#include "misc/bstr.h"
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#include "common/common.h"
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#include "audio/chmap.h"
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#include "audio/chmap_sel.h"
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enum aocontrol {
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// _VOLUME commands take struct ao_control_vol pointer for input/output.
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// If there's only one volume, SET should use average of left/right.
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AOCONTROL_GET_VOLUME,
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AOCONTROL_SET_VOLUME,
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// _MUTE commands take a pointer to bool
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AOCONTROL_GET_MUTE,
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AOCONTROL_SET_MUTE,
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// Has char* as argument, which contains the desired stream title.
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AOCONTROL_UPDATE_STREAM_TITLE,
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// the AO does the equivalent of af_volume (return CONTROL_TRUE if yes)
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AOCONTROL_HAS_SOFT_VOLUME,
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// like above, but volume persists (per app), mpv won't restore volume
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AOCONTROL_HAS_PER_APP_VOLUME,
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};
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// If set, then the queued audio data is the last. Note that after a while, new
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// data might be written again, instead of closing the AO.
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#define AOPLAY_FINAL_CHUNK 1
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enum {
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AO_EVENT_RELOAD = 1,
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AO_EVENT_HOTPLUG = 2,
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};
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enum {
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// Allow falling back to ao_null if nothing else works.
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AO_INIT_NULL_FALLBACK = 1 << 0,
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// Only accept multichannel configurations that are guaranteed to work
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// (i.e. not sending arbitrary layouts over HDMI).
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AO_INIT_SAFE_MULTICHANNEL_ONLY = 1 << 1,
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// Stream silence as long as no audio is playing.
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AO_INIT_STREAM_SILENCE = 1 << 2,
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// Force exclusive mode, i.e. lock out the system mixer.
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AO_INIT_EXCLUSIVE = 1 << 3,
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};
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typedef struct ao_control_vol {
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float left;
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float right;
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} ao_control_vol_t;
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struct ao_device_desc {
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const char *name; // symbolic name; will be set on ao->device
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const char *desc; // verbose human readable name
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};
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struct ao_device_list {
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struct ao_device_desc *devices;
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int num_devices;
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};
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struct ao;
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struct mpv_global;
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struct input_ctx;
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struct encode_lavc_context;
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struct mp_audio;
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struct ao *ao_init_best(struct mpv_global *global,
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int init_flags,
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void (*wakeup_cb)(void *ctx), void *wakeup_ctx,
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struct encode_lavc_context *encode_lavc_ctx,
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int samplerate, int format, struct mp_chmap channels);
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void ao_uninit(struct ao *ao);
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void ao_get_format(struct ao *ao, struct mp_audio *format);
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const char *ao_get_name(struct ao *ao);
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const char *ao_get_description(struct ao *ao);
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bool ao_untimed(struct ao *ao);
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int ao_play(struct ao *ao, void **data, int samples, int flags);
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int ao_control(struct ao *ao, enum aocontrol cmd, void *arg);
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double ao_get_delay(struct ao *ao);
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int ao_get_space(struct ao *ao);
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void ao_reset(struct ao *ao);
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void ao_pause(struct ao *ao);
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void ao_resume(struct ao *ao);
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void ao_drain(struct ao *ao);
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bool ao_eof_reached(struct ao *ao);
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int ao_query_and_reset_events(struct ao *ao, int events);
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void ao_request_reload(struct ao *ao);
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void ao_hotplug_event(struct ao *ao);
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struct ao_hotplug;
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struct ao_hotplug *ao_hotplug_create(struct mpv_global *global,
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void (*wakeup_cb)(void *ctx),
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void *wakeup_ctx);
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void ao_hotplug_destroy(struct ao_hotplug *hp);
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bool ao_hotplug_check_update(struct ao_hotplug *hp);
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const char *ao_hotplug_get_detected_device(struct ao_hotplug *hp);
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struct ao_device_list *ao_hotplug_get_device_list(struct ao_hotplug *hp);
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void ao_print_devices(struct mpv_global *global, struct mp_log *log);
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#endif /* MPLAYER_AUDIO_OUT_H */
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