libao2/audio_out.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <assert.h>
  23
  24 #include "config.h"
  25 #include "audio_out.h"
  26
  27 #include "mp_msg.h"
  28
  29 // there are some globals:
  30 struct ao ao_data;
  31 char *ao_subdevice = NULL;
  32
  33 extern const ao_functions_t audio_out_oss;
  34 extern const ao_functions_t audio_out_coreaudio;
  35 extern const ao_functions_t audio_out_arts;
  36 extern const ao_functions_t audio_out_esd;
  37 extern const ao_functions_t audio_out_pulse;
  38 extern const ao_functions_t audio_out_jack;
  39 extern const ao_functions_t audio_out_openal;
  40 extern const ao_functions_t audio_out_null;
  41 extern const ao_functions_t audio_out_alsa5;
  42 extern const ao_functions_t audio_out_alsa;
  43 extern const ao_functions_t audio_out_nas;
  44 extern const ao_functions_t audio_out_sdl;
  45 extern const ao_functions_t audio_out_sun;
  46 extern const ao_functions_t audio_out_sgi;
  47 extern const ao_functions_t audio_out_win32;
  48 extern const ao_functions_t audio_out_dsound;
  49 extern const ao_functions_t audio_out_kai;
  50 extern const ao_functions_t audio_out_dart;
  51 extern const ao_functions_t audio_out_ivtv;
  52 extern const ao_functions_t audio_out_v4l2;
  53 extern const ao_functions_t audio_out_mpegpes;
  54 extern const ao_functions_t audio_out_pcm;
  55 extern const ao_functions_t audio_out_pss;
  56
  57 const ao_functions_t* const audio_out_drivers[] =
  58 {
  59 // native:
  60 #ifdef CONFIG_DIRECTX
  61         &audio_out_dsound,
  62 #endif
  63 #ifdef CONFIG_WIN32WAVEOUT
  64         &audio_out_win32,
  65 #endif
  66 #ifdef CONFIG_KAI
  67         &audio_out_kai,
  68 #endif
  69 #ifdef CONFIG_DART
  70         &audio_out_dart,
  71 #endif
  72 #ifdef CONFIG_COREAUDIO
  73         &audio_out_coreaudio,
  74 #endif
  75 #ifdef CONFIG_OSS_AUDIO
  76         &audio_out_oss,
  77 #endif
  78 #ifdef CONFIG_ALSA
  79         &audio_out_alsa,
  80 #endif
  81 #ifdef CONFIG_ALSA5
  82         &audio_out_alsa5,
  83 #endif
  84 #ifdef CONFIG_SGI_AUDIO
  85         &audio_out_sgi,
  86 #endif
  87 #ifdef CONFIG_SUN_AUDIO
  88         &audio_out_sun,
  89 #endif
  90 // wrappers:
  91 #ifdef CONFIG_ARTS
  92         &audio_out_arts,
  93 #endif
  94 #ifdef CONFIG_ESD
  95         &audio_out_esd,
  96 #endif
  97 #ifdef CONFIG_PULSE
  98         &audio_out_pulse,
  99 #endif
 100 #ifdef CONFIG_JACK
 101         &audio_out_jack,
 102 #endif
 103 #ifdef CONFIG_NAS
 104         &audio_out_nas,
 105 #endif
 106 #ifdef CONFIG_SDL
 107         &audio_out_sdl,
 108 #endif
 109 #ifdef CONFIG_OPENAL
 110         &audio_out_openal,
 111 #endif
 112         &audio_out_mpegpes,
 113 #ifdef CONFIG_IVTV
 114         &audio_out_ivtv,
 115 #endif
 116 #ifdef CONFIG_V4L2_DECODER
 117         &audio_out_v4l2,
 118 #endif
 119         &audio_out_null,
 120 // should not be auto-selected:
 121         &audio_out_pcm,
 122         NULL
 123 };
 124
 125 void list_audio_out(void){
 126     int i=0;
 127     mp_tmsg(MSGT_AO, MSGL_INFO, "Available audio output drivers:\n");
 128     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AUDIO_OUTPUTS\n");
 129     while (audio_out_drivers[i]) {
 130         const ao_info_t *info = audio_out_drivers[i++]->info;
 131         mp_msg(MSGT_GLOBAL, MSGL_INFO,"\t%s\t%s\n", info->short_name, info->name);
 132     }
 133     mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
 134 }
 135
 136 struct ao *ao_create(void)
 137 {
 138     ao_data = (struct ao){.outburst = OUTBURST, .buffersize = -1};
 139     return &ao_data;
 140 }
 141
 142 void ao_init(struct ao *ao, char **ao_list)
 143 {
 144     struct ao backup = *ao;
 145
 146     if (!ao_list)
 147         goto try_defaults;
 148
 149     // first try the preferred drivers, with their optional subdevice param:
 150     while (*ao_list) {
 151         char *ao_name = *ao_list;
 152         if (!*ao_name)
 153             goto try_defaults; // empty entry means try defaults
 154         int ao_len;
 155         assert(!ao_subdevice);
 156         ao_subdevice = strchr(ao_name, ':');
 157         if (ao_subdevice) {
 158             ao_len = ao_subdevice - ao_name;
 159             ao_subdevice = strdup(ao_subdevice + 1);
 160         } else
 161             ao_len = strlen(ao_name);
 162
 163         mp_tmsg(MSGT_AO, MSGL_V,
 164                 "Trying preferred audio driver '%.*s', options '%s'\n",
 165                ao_len, ao_name, ao_subdevice ? ao_subdevice : "[none]");
 166
 167         const ao_functions_t *audio_out = NULL;
 168         for (int i = 0; audio_out_drivers[i]; i++) {
 169             audio_out = audio_out_drivers[i];
 170             if (!strncmp(audio_out->info->short_name, ao_name, ao_len))
 171                 break;
 172             audio_out = NULL;
 173         }
 174         if (audio_out) {
 175             // name matches, try it
 176             if (audio_out->init(ao->samplerate, ao->channels, ao->format, 0)) {
 177                 ao->driver = audio_out;
 178                 ao->initialized = true;
 179                 return;
 180             }
 181             mp_tmsg(MSGT_AO, MSGL_WARN,
 182                     "Failed to initialize audio driver '%s'\n", ao_name);
 183             *ao = backup;
 184         } else
 185             mp_tmsg(MSGT_AO, MSGL_WARN, "No such audio driver '%.*s'\n",
 186                     ao_len, ao_name);
 187         free(ao_subdevice);
 188         ao_subdevice = NULL;
 189         ++ao_list;
 190     }
 191     return;
 192
 193  try_defaults:
 194     mp_tmsg(MSGT_AO, MSGL_V, "Trying every known audio driver...\n");
 195
 196     // now try the rest...
 197     for (int i = 0; audio_out_drivers[i]; i++) {
 198         const ao_functions_t *audio_out = audio_out_drivers[i];
 199         if (audio_out->init(ao->samplerate, ao->channels, ao->format, 0)) {
 200             ao->initialized = true;
 201             ao->driver = audio_out;
 202             return;
 203         }
 204         *ao = backup;
 205     }
 206     return;
 207 }
 208
 209 void ao_uninit(struct ao *ao, bool drain_audio)
 210 {
 211     if (ao->initialized)
 212         ao->driver->uninit(drain_audio);
 213     ao->initialized = false;
 214     free(ao_subdevice);
 215     ao_subdevice = NULL;
 216 }
 217
 218 int ao_play(struct ao *ao, void *data, int len, int flags)
 219 {
 220     return ao->driver->play(data, len, flags);
 221 }
 222
 223 int ao_control(struct ao *ao, int cmd, void *arg)
 224 {
 225     return ao->driver->control(cmd, arg);
 226 }
 227
 228 double ao_get_delay(struct ao *ao)
 229 {
 230     return ao->driver->get_delay();
 231 }
 232
 233 int ao_get_space(struct ao *ao)
 234 {
 235     return ao->driver->get_space();
 236 }
 237
 238 void ao_reset(struct ao *ao)
 239 {
 240     ao->driver->reset();
 241 }
 242
 243 void ao_pause(struct ao *ao)
 244 {
 245     ao->driver->pause();
 246 }
 247
 248 void ao_resume(struct ao *ao)
 249 {
 250     ao->driver->resume();
 251 }