mirror of https://github.com/mpv-player/mpv
295 lines
7.5 KiB
C
295 lines
7.5 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer 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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* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "talloc.h"
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#include "config.h"
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#include "audio_out.h"
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#include "mp_msg.h"
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// there are some globals:
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struct ao *global_ao;
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char *ao_subdevice = NULL;
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extern const struct ao_driver audio_out_oss;
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extern const struct ao_driver audio_out_coreaudio;
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extern const struct ao_driver audio_out_rsound;
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extern const struct ao_driver audio_out_pulse;
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extern const struct ao_driver audio_out_jack;
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extern const struct ao_driver audio_out_openal;
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extern const struct ao_driver audio_out_null;
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extern const struct ao_driver audio_out_alsa;
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extern const struct ao_driver audio_out_dsound;
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extern const struct ao_driver audio_out_pcm;
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extern const struct ao_driver audio_out_pss;
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extern const struct ao_driver audio_out_lavc;
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extern const struct ao_driver audio_out_portaudio;
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static const struct ao_driver * const audio_out_drivers[] = {
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// native:
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#ifdef CONFIG_DIRECTX
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&audio_out_dsound,
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#endif
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#ifdef CONFIG_COREAUDIO
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&audio_out_coreaudio,
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#endif
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#ifdef CONFIG_PULSE
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&audio_out_pulse,
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#endif
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#ifdef CONFIG_ALSA
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&audio_out_alsa,
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#endif
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#ifdef CONFIG_OSS_AUDIO
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&audio_out_oss,
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#endif
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#ifdef CONFIG_PORTAUDIO
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&audio_out_portaudio,
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#endif
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// wrappers:
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#ifdef CONFIG_JACK
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&audio_out_jack,
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#endif
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#ifdef CONFIG_OPENAL
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&audio_out_openal,
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#endif
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#ifdef CONFIG_ENCODING
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&audio_out_lavc,
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#endif
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&audio_out_null,
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// should not be auto-selected:
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&audio_out_pcm,
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#ifdef CONFIG_RSOUND
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&audio_out_rsound,
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#endif
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NULL
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};
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void list_audio_out(void)
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{
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int i=0;
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mp_tmsg(MSGT_AO, MSGL_INFO, "Available audio output drivers:\n");
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mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_OUTPUTS\n");
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while (audio_out_drivers[i]) {
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const ao_info_t *info = audio_out_drivers[i++]->info;
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mp_msg(MSGT_GLOBAL, MSGL_INFO, "\t%s\t%s\n", info->short_name,
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info->name);
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}
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mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
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}
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struct ao *ao_create(struct MPOpts *opts, struct input_ctx *input)
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{
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struct ao *r = talloc(NULL, struct ao);
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*r = (struct ao){.outburst = 512, .buffersize = -1,
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.opts = opts, .input_ctx = input };
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return r;
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}
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void ao_init(struct ao *ao, char **ao_list)
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{
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/* Caller adding child blocks is not supported as we may call
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* talloc_free_children() to clean up after failed open attempts.
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*/
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assert(talloc_total_blocks(ao) == 1);
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struct ao backup = *ao;
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if (!ao_list)
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goto try_defaults;
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// first try the preferred drivers, with their optional subdevice param:
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while (*ao_list) {
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char *ao_name = *ao_list;
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if (!*ao_name)
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goto try_defaults; // empty entry means try defaults
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int ao_len;
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char *params = strchr(ao_name, ':');
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if (params) {
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ao_len = params - ao_name;
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params++;
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} else
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ao_len = strlen(ao_name);
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mp_tmsg(MSGT_AO, MSGL_V,
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"Trying preferred audio driver '%.*s', options '%s'\n",
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ao_len, ao_name, params ? params : "[none]");
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const struct ao_driver *audio_out = NULL;
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for (int i = 0; audio_out_drivers[i]; i++) {
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audio_out = audio_out_drivers[i];
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if (!strncmp(audio_out->info->short_name, ao_name, ao_len))
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break;
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audio_out = NULL;
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}
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if (audio_out) {
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// name matches, try it
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ao->driver = audio_out;
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if (audio_out->init(ao, params) >= 0) {
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ao->driver = audio_out;
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ao->initialized = true;
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return;
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}
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mp_tmsg(MSGT_AO, MSGL_WARN,
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"Failed to initialize audio driver '%s'\n", ao_name);
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talloc_free_children(ao);
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*ao = backup;
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} else
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mp_tmsg(MSGT_AO, MSGL_WARN, "No such audio driver '%.*s'\n",
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ao_len, ao_name);
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++ao_list;
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}
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return;
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try_defaults:
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mp_tmsg(MSGT_AO, MSGL_V, "Trying every known audio driver...\n");
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// now try the rest...
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for (int i = 0; audio_out_drivers[i]; i++) {
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const struct ao_driver *audio_out = audio_out_drivers[i];
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ao->driver = audio_out;
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ao->probing = true;
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if (audio_out->init(ao, NULL) >= 0) {
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ao->probing = false;
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ao->initialized = true;
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ao->driver = audio_out;
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return;
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}
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talloc_free_children(ao);
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*ao = backup;
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}
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return;
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}
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void ao_uninit(struct ao *ao, bool cut_audio)
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{
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assert(ao->buffer.len >= ao->buffer_playable_size);
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ao->buffer.len = ao->buffer_playable_size;
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if (ao->initialized)
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ao->driver->uninit(ao, cut_audio);
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if (!cut_audio && ao->buffer.len)
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mp_msg(MSGT_AO, MSGL_WARN, "Audio output truncated at end.\n");
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talloc_free(ao);
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}
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int ao_play(struct ao *ao, void *data, int len, int flags)
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{
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return ao->driver->play(ao, data, len, flags);
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}
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int ao_control(struct ao *ao, enum aocontrol cmd, void *arg)
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{
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if (ao->driver->control)
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return ao->driver->control(ao, cmd, arg);
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return CONTROL_UNKNOWN;
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}
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double ao_get_delay(struct ao *ao)
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{
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if (!ao->driver->get_delay) {
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assert(ao->untimed);
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return 0;
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}
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return ao->driver->get_delay(ao);
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}
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int ao_get_space(struct ao *ao)
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{
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return ao->driver->get_space(ao);
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}
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void ao_reset(struct ao *ao)
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{
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ao->buffer.len = 0;
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ao->buffer_playable_size = 0;
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if (ao->driver->reset)
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ao->driver->reset(ao);
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}
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void ao_pause(struct ao *ao)
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{
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if (ao->driver->pause)
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ao->driver->pause(ao);
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}
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void ao_resume(struct ao *ao)
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{
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if (ao->driver->resume)
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ao->driver->resume(ao);
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}
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int old_ao_init(struct ao *ao, char *params)
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{
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assert(!global_ao);
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global_ao = ao;
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ao_subdevice = params ? talloc_strdup(ao, params) : NULL;
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if (ao->driver->old_functions->init(ao->samplerate, ao->channels,
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ao->format, 0) == 0) {
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global_ao = NULL;
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return -1;
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}
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return 0;
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}
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void old_ao_uninit(struct ao *ao, bool cut_audio)
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{
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ao->driver->old_functions->uninit(cut_audio);
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global_ao = NULL;
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}
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int old_ao_play(struct ao *ao, void *data, int len, int flags)
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{
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return ao->driver->old_functions->play(data, len, flags);
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}
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int old_ao_control(struct ao *ao, enum aocontrol cmd, void *arg)
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{
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return ao->driver->old_functions->control(cmd, arg);
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}
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float old_ao_get_delay(struct ao *ao)
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{
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return ao->driver->old_functions->get_delay();
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}
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int old_ao_get_space(struct ao *ao)
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{
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return ao->driver->old_functions->get_space();
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}
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void old_ao_reset(struct ao *ao)
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{
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ao->driver->old_functions->reset();
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}
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void old_ao_pause(struct ao *ao)
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{
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ao->driver->old_functions->pause();
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}
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void old_ao_resume(struct ao *ao)
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{
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ao->driver->old_functions->resume();
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}
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