mpv/audio/out/ao.c

262 lines
7.4 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "talloc.h"
#include "config.h"
#include "ao.h"
#include "audio/format.h"
#include "mpvcore/options.h"
#include "mpvcore/m_config.h"
#include "mpvcore/mp_msg.h"
#include "mpvcore/mpv_global.h"
extern const struct ao_driver audio_out_oss;
extern const struct ao_driver audio_out_coreaudio;
extern const struct ao_driver audio_out_rsound;
extern const struct ao_driver audio_out_pulse;
extern const struct ao_driver audio_out_jack;
extern const struct ao_driver audio_out_openal;
extern const struct ao_driver audio_out_null;
extern const struct ao_driver audio_out_alsa;
extern const struct ao_driver audio_out_dsound;
extern const struct ao_driver audio_out_wasapi;
extern const struct ao_driver audio_out_pcm;
extern const struct ao_driver audio_out_lavc;
extern const struct ao_driver audio_out_portaudio;
extern const struct ao_driver audio_out_sdl;
static const struct ao_driver * const audio_out_drivers[] = {
// native:
#ifdef CONFIG_COREAUDIO
&audio_out_coreaudio,
#endif
#ifdef CONFIG_PULSE
&audio_out_pulse,
#endif
#ifdef CONFIG_ALSA
&audio_out_alsa,
#endif
#ifdef CONFIG_WASAPI
&audio_out_wasapi,
#endif
#ifdef CONFIG_OSS_AUDIO
&audio_out_oss,
#endif
#ifdef CONFIG_DSOUND
&audio_out_dsound,
#endif
#ifdef CONFIG_PORTAUDIO
&audio_out_portaudio,
#endif
// wrappers:
#ifdef CONFIG_JACK
&audio_out_jack,
#endif
#ifdef CONFIG_OPENAL
&audio_out_openal,
#endif
#ifdef CONFIG_SDL
&audio_out_sdl,
#endif
&audio_out_null,
// should not be auto-selected:
&audio_out_pcm,
#ifdef CONFIG_ENCODING
&audio_out_lavc,
#endif
#ifdef CONFIG_RSOUND
&audio_out_rsound,
#endif
NULL
};
static bool get_desc(struct m_obj_desc *dst, int index)
{
if (index >= MP_ARRAY_SIZE(audio_out_drivers) - 1)
return false;
const struct ao_driver *ao = audio_out_drivers[index];
*dst = (struct m_obj_desc) {
.name = ao->info->short_name,
.description = ao->info->name,
.priv_size = ao->priv_size,
.priv_defaults = ao->priv_defaults,
.options = ao->options,
.hidden = ao->encode,
.p = ao,
};
return true;
}
// For the ao option
const struct m_obj_list ao_obj_list = {
.get_desc = get_desc,
.description = "audio outputs",
.allow_unknown_entries = true,
.allow_trailer = true,
};
static struct ao *ao_create(bool probing, struct mpv_global *global,
struct input_ctx *input_ctx,
struct encode_lavc_context *encode_lavc_ctx,
int samplerate, int format, struct mp_chmap channels,
char *name, char **args)
{
struct mp_log *log = mp_log_new(NULL, global->log, "ao");
struct m_obj_desc desc;
if (!m_obj_list_find(&desc, &ao_obj_list, bstr0(name))) {
mp_tmsg_log(log, MSGL_ERR, "Audio output %s not found!\n", name);
talloc_free(log);
return NULL;
};
struct ao *ao = talloc_ptrtype(NULL, ao);
talloc_steal(ao, log);
*ao = (struct ao) {
.driver = desc.p,
.probing = probing,
.opts = global->opts,
.encode_lavc_ctx = encode_lavc_ctx,
.input_ctx = input_ctx,
.samplerate = samplerate,
.channels = channels,
.format = format,
.log = mp_log_new(ao, log, name),
};
if (ao->driver->encode != !!ao->encode_lavc_ctx)
goto error;
struct m_config *config = m_config_from_obj_desc(ao, &desc);
if (m_config_set_obj_params(config, args) < 0)
goto error;
ao->priv = config->optstruct;
if (ao->driver->init(ao) < 0)
goto error;
ao->bps = ao->channels.num * ao->samplerate * af_fmt2bits(ao->format) / 8;
return ao;
error:
talloc_free(ao);
return NULL;
}
struct ao *ao_init_best(struct mpv_global *global,
struct input_ctx *input_ctx,
struct encode_lavc_context *encode_lavc_ctx,
int samplerate, int format, struct mp_chmap channels)
{
struct m_obj_settings *ao_list = global->opts->audio_driver_list;
if (ao_list && ao_list[0].name) {
for (int n = 0; ao_list[n].name; n++) {
if (strlen(ao_list[n].name) == 0)
goto autoprobe;
mp_tmsg(MSGT_AO, MSGL_V, "Trying preferred audio driver '%s'\n",
ao_list[n].name);
struct ao *ao = ao_create(false, global, input_ctx, encode_lavc_ctx,
samplerate, format, channels,
ao_list[n].name, ao_list[n].attribs);
if (ao)
return ao;
mp_tmsg(MSGT_AO, MSGL_WARN, "Failed to initialize audio driver '%s'\n",
ao_list[n].name);
}
return NULL;
}
autoprobe:
// now try the rest...
for (int i = 0; audio_out_drivers[i]; i++) {
struct ao *ao = ao_create(true, global, input_ctx, encode_lavc_ctx,
samplerate, format, channels,
(char *)audio_out_drivers[i]->info->short_name, NULL);
if (ao)
return ao;
}
return NULL;
}
void ao_uninit(struct ao *ao, bool cut_audio)
{
assert(ao->buffer.len >= ao->buffer_playable_size);
ao->buffer.len = ao->buffer_playable_size;
ao->driver->uninit(ao, cut_audio);
if (!cut_audio && ao->buffer.len)
mp_msg(MSGT_AO, MSGL_WARN, "Audio output truncated at end.\n");
talloc_free(ao);
}
int ao_play(struct ao *ao, void *data, int len, int flags)
{
return ao->driver->play(ao, data, len, flags);
}
int ao_control(struct ao *ao, enum aocontrol cmd, void *arg)
{
if (ao->driver->control)
return ao->driver->control(ao, cmd, arg);
return CONTROL_UNKNOWN;
}
double ao_get_delay(struct ao *ao)
{
if (!ao->driver->get_delay) {
assert(ao->untimed);
return 0;
}
return ao->driver->get_delay(ao);
}
int ao_get_space(struct ao *ao)
{
return ao->driver->get_space(ao);
}
void ao_reset(struct ao *ao)
{
ao->buffer.len = 0;
ao->buffer_playable_size = 0;
if (ao->driver->reset)
ao->driver->reset(ao);
}
void ao_pause(struct ao *ao)
{
if (ao->driver->pause)
ao->driver->pause(ao);
}
void ao_resume(struct ao *ao)
{
if (ao->driver->resume)
ao->driver->resume(ao);
}
bool ao_chmap_sel_adjust(struct ao *ao, const struct mp_chmap_sel *s,
struct mp_chmap *map)
{
return mp_chmap_sel_adjust(s, map);
}
bool ao_chmap_sel_get_def(struct ao *ao, const struct mp_chmap_sel *s,
struct mp_chmap *map, int num)
{
return mp_chmap_sel_get_def(s, map, num);
}