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🎥 Command line media player
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123/* * This file is part of mpv. * * mpv is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * mpv is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with mpv. If not, see <http://www.gnu.org/licenses/>. */
#ifndef MPLAYER_AUDIO_OUT_H#define MPLAYER_AUDIO_OUT_H
#include <stdbool.h>
#include "misc/bstr.h"#include "common/common.h"#include "audio/chmap.h"#include "audio/chmap_sel.h"
enum aocontrol { // _VOLUME commands take a pointer to float for input/output. AOCONTROL_GET_VOLUME, AOCONTROL_SET_VOLUME, // _MUTE commands take a pointer to bool AOCONTROL_GET_MUTE, AOCONTROL_SET_MUTE, // Has char* as argument, which contains the desired stream title. AOCONTROL_UPDATE_STREAM_TITLE,};
// If set, then the queued audio data is the last. Note that after a while, new// data might be written again, instead of closing the AO.#define PLAYER_FINAL_CHUNK 1
enum { AO_EVENT_RELOAD = 1, AO_EVENT_HOTPLUG = 2, AO_EVENT_INITIAL_UNBLOCK = 4,};
enum { // Allow falling back to ao_null if nothing else works. AO_INIT_NULL_FALLBACK = 1 << 0, // Only accept multichannel configurations that are guaranteed to work // (i.e. not sending arbitrary layouts over HDMI). AO_INIT_SAFE_MULTICHANNEL_ONLY = 1 << 1, // Stream silence as long as no audio is playing. AO_INIT_STREAM_SILENCE = 1 << 2, // Force exclusive mode, i.e. lock out the system mixer. AO_INIT_EXCLUSIVE = 1 << 3, // Initialize with music role. AO_INIT_MEDIA_ROLE_MUSIC = 1 << 4,};
struct ao_device_desc { const char *name; // symbolic name; will be set on ao->device const char *desc; // verbose human readable name};
struct ao_device_list { struct ao_device_desc *devices; int num_devices;};
struct ao;struct mpv_global;struct input_ctx;struct encode_lavc_context;
struct ao_opts { struct m_obj_settings *audio_driver_list; char *audio_device; char *audio_client_name; double audio_buffer;};
struct ao *ao_init_best(struct mpv_global *global, int init_flags, void (*wakeup_cb)(void *ctx), void *wakeup_ctx, struct encode_lavc_context *encode_lavc_ctx, int samplerate, int format, struct mp_chmap channels);void ao_uninit(struct ao *ao);void ao_get_format(struct ao *ao, int *samplerate, int *format, struct mp_chmap *channels);const char *ao_get_name(struct ao *ao);const char *ao_get_description(struct ao *ao);bool ao_untimed(struct ao *ao);int ao_control(struct ao *ao, enum aocontrol cmd, void *arg);void ao_set_gain(struct ao *ao, float gain);double ao_get_delay(struct ao *ao);void ao_reset(struct ao *ao);void ao_start(struct ao *ao);void ao_set_paused(struct ao *ao, bool paused, bool eof);void ao_drain(struct ao *ao);bool ao_is_playing(struct ao *ao);struct mp_async_queue;struct mp_async_queue *ao_get_queue(struct ao *ao);int ao_query_and_reset_events(struct ao *ao, int events);int ao_add_events(struct ao *ao, int events);void ao_unblock(struct ao *ao);void ao_request_reload(struct ao *ao);void ao_hotplug_event(struct ao *ao);
struct ao_hotplug;struct ao_hotplug *ao_hotplug_create(struct mpv_global *global, void (*wakeup_cb)(void *ctx), void *wakeup_ctx);void ao_hotplug_destroy(struct ao_hotplug *hp);bool ao_hotplug_check_update(struct ao_hotplug *hp);struct ao_device_list *ao_hotplug_get_device_list(struct ao_hotplug *hp, struct ao *playback_ao);
void ao_print_devices(struct mpv_global *global, struct mp_log *log, struct ao *playback_ao);
#endif /* MPLAYER_AUDIO_OUT_H */