git.sesse.net Git - vlc/blob - modules/audio_output/directx.c

   1 /*****************************************************************************
   2  * directx.c: Windows DirectX audio output method
   3  *****************************************************************************
   4  * Copyright (C) 2001 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <errno.h>                                                 /* ENOMEM */
  28 #include <fcntl.h>                                       /* open(), O_WRONLY */
  29 #include <string.h>                                            /* strerror() */
  30
  31 #include <stdlib.h>                            /* calloc(), malloc(), free() */
  32
  33 #include <vlc/vlc.h>
  34 #include <vlc/aout.h>
  35 #include "aout_internal.h"
  36
  37 #include <windows.h>
  38 #include <mmsystem.h>
  39 #include <dsound.h>
  40
  41 #define FRAME_SIZE 2048              /* The size is in samples, not in bytes */
  42 #define FRAMES_NUM 8
  43
  44 /* frame buffer status */
  45 #define FRAME_QUEUED 0
  46 #define FRAME_EMPTY 1
  47
  48 /*****************************************************************************
  49  * DirectSound GUIDs.
  50  * Defining them here allows us to get rid of the dxguid library during
  51  * the linking stage.
  52  *****************************************************************************/
  53 #include <initguid.h>
  54 DEFINE_GUID(IID_IDirectSoundNotify, 0xb0210783, 0x89cd, 0x11d0, 0xaf, 0x8, 0x0, 0xa0, 0xc9, 0x25, 0xcd, 0x16);
  55
  56 /*****************************************************************************
  57  * Useful macros
  58  *****************************************************************************/
  59 #ifndef WAVE_FORMAT_IEEE_FLOAT
  60 #   define WAVE_FORMAT_IEEE_FLOAT 0x0003
  61 #endif
  62
  63 #ifndef WAVE_FORMAT_DOLBY_AC3_SPDIF
  64 #   define WAVE_FORMAT_DOLBY_AC3_SPDIF 0x0092
  65 #endif
  66
  67 #ifndef WAVE_FORMAT_EXTENSIBLE
  68 #define  WAVE_FORMAT_EXTENSIBLE   0xFFFE
  69 #endif
  70
  71 #ifndef SPEAKER_FRONT_LEFT
  72 #   define SPEAKER_FRONT_LEFT             0x1
  73 #   define SPEAKER_FRONT_RIGHT            0x2
  74 #   define SPEAKER_FRONT_CENTER           0x4
  75 #   define SPEAKER_LOW_FREQUENCY          0x8
  76 #   define SPEAKER_BACK_LEFT              0x10
  77 #   define SPEAKER_BACK_RIGHT             0x20
  78 #   define SPEAKER_FRONT_LEFT_OF_CENTER   0x40
  79 #   define SPEAKER_FRONT_RIGHT_OF_CENTER  0x80
  80 #   define SPEAKER_BACK_CENTER            0x100
  81 #   define SPEAKER_SIDE_LEFT              0x200
  82 #   define SPEAKER_SIDE_RIGHT             0x400
  83 #   define SPEAKER_TOP_CENTER             0x800
  84 #   define SPEAKER_TOP_FRONT_LEFT         0x1000
  85 #   define SPEAKER_TOP_FRONT_CENTER       0x2000
  86 #   define SPEAKER_TOP_FRONT_RIGHT        0x4000
  87 #   define SPEAKER_TOP_BACK_LEFT          0x8000
  88 #   define SPEAKER_TOP_BACK_CENTER        0x10000
  89 #   define SPEAKER_TOP_BACK_RIGHT         0x20000
  90 #   define SPEAKER_RESERVED               0x80000000
  91 #endif
  92
  93 #ifndef DSSPEAKER_HEADPHONE
  94 #   define DSSPEAKER_HEADPHONE         0x00000001
  95 #endif
  96 #ifndef DSSPEAKER_MONO
  97 #   define DSSPEAKER_MONO              0x00000002
  98 #endif
  99 #ifndef DSSPEAKER_QUAD
 100 #   define DSSPEAKER_QUAD              0x00000003
 101 #endif
 102 #ifndef DSSPEAKER_STEREO
 103 #   define DSSPEAKER_STEREO            0x00000004
 104 #endif
 105 #ifndef DSSPEAKER_SURROUND
 106 #   define DSSPEAKER_SURROUND          0x00000005
 107 #endif
 108 #ifndef DSSPEAKER_5POINT1
 109 #   define DSSPEAKER_5POINT1           0x00000006
 110 #endif
 111
 112 #ifndef _WAVEFORMATEXTENSIBLE_
 113 typedef struct {
 114     WAVEFORMATEX    Format;
 115     union {
 116         WORD wValidBitsPerSample;       /* bits of precision  */
 117         WORD wSamplesPerBlock;          /* valid if wBitsPerSample==0 */
 118         WORD wReserved;                 /* If neither applies, set to zero. */
 119     } Samples;
 120     DWORD           dwChannelMask;      /* which channels are */
 121                                         /* present in stream  */
 122     GUID            SubFormat;
 123 } WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE;
 124 #endif
 125
 126 DEFINE_GUID( _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, WAVE_FORMAT_IEEE_FLOAT, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
 127 DEFINE_GUID( _KSDATAFORMAT_SUBTYPE_PCM, WAVE_FORMAT_PCM, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
 128 DEFINE_GUID( _KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF, WAVE_FORMAT_DOLBY_AC3_SPDIF, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
 129
 130 /*****************************************************************************
 131  * notification_thread_t: DirectX event thread
 132  *****************************************************************************/
 133 typedef struct notification_thread_t
 134 {
 135     VLC_COMMON_MEMBERS
 136
 137     aout_instance_t * p_aout;
 138     int i_frame_status[FRAMES_NUM];           /* status of each frame buffer */
 139     DSBPOSITIONNOTIFY p_events[FRAMES_NUM];      /* play notification events */
 140     int i_frame_size;                         /* Size in bytes of one frame */
 141
 142     mtime_t start_date;
 143
 144 } notification_thread_t;
 145
 146 /*****************************************************************************
 147  * aout_sys_t: directx audio output method descriptor
 148  *****************************************************************************
 149  * This structure is part of the audio output thread descriptor.
 150  * It describes the direct sound specific properties of an audio device.
 151  *****************************************************************************/
 152 struct aout_sys_t
 153 {
 154     HINSTANCE           hdsound_dll;      /* handle of the opened dsound dll */
 155     LPDIRECTSOUND       p_dsobject;              /* main Direct Sound object */
 156     LPDIRECTSOUNDBUFFER p_dsbuffer;   /* the sound buffer we use (direct sound
 157                                        * takes care of mixing all the
 158                                        * secondary buffers into the primary) */
 159
 160     LPDIRECTSOUNDNOTIFY p_dsnotify;         /* the position notify interface */
 161     notification_thread_t *p_notif;                  /* DirectSoundThread id */
 162
 163     int b_playing;                                         /* playing status */
 164
 165     int i_frame_size;                         /* Size in bytes of one frame */
 166
 167     vlc_bool_t b_chan_reorder;              /* do we need channel reordering */
 168     int pi_chan_table[AOUT_CHAN_MAX];
 169     uint32_t i_channel_mask;
 170     uint32_t i_bits_per_sample;
 171     uint32_t i_channels;
 172 };
 173
 174 static const uint32_t pi_channels_src[] =
 175     { AOUT_CHAN_LEFT, AOUT_CHAN_RIGHT,
 176       AOUT_CHAN_MIDDLELEFT, AOUT_CHAN_MIDDLERIGHT,
 177       AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT,
 178       AOUT_CHAN_CENTER, AOUT_CHAN_LFE, 0 };
 179 static const uint32_t pi_channels_in[] =
 180     { SPEAKER_FRONT_LEFT, SPEAKER_FRONT_RIGHT,
 181       SPEAKER_SIDE_LEFT, SPEAKER_SIDE_RIGHT,
 182       SPEAKER_BACK_LEFT, SPEAKER_BACK_RIGHT,
 183       SPEAKER_FRONT_CENTER, SPEAKER_LOW_FREQUENCY, 0 };
 184 static const uint32_t pi_channels_out[] =
 185     { SPEAKER_FRONT_LEFT, SPEAKER_FRONT_RIGHT,
 186       SPEAKER_FRONT_CENTER, SPEAKER_LOW_FREQUENCY,
 187       SPEAKER_BACK_LEFT, SPEAKER_BACK_RIGHT,
 188       SPEAKER_SIDE_LEFT, SPEAKER_SIDE_RIGHT, 0 };
 189
 190 /*****************************************************************************
 191  * Local prototypes.
 192  *****************************************************************************/
 193 static int  OpenAudio  ( vlc_object_t * );
 194 static void CloseAudio ( vlc_object_t * );
 195 static void Play       ( aout_instance_t * );
 196
 197 /* local functions */
 198 static void Probe             ( aout_instance_t * );
 199 static int  InitDirectSound   ( aout_instance_t * );
 200 static int  CreateDSBuffer    ( aout_instance_t *, int, int, int, int, int, vlc_bool_t );
 201 static int  CreateDSBufferPCM ( aout_instance_t *, int*, int, int, int, vlc_bool_t );
 202 static void DestroyDSBuffer   ( aout_instance_t * );
 203 static void DirectSoundThread ( notification_thread_t * );
 204 static int  FillBuffer        ( aout_instance_t *, int, aout_buffer_t * );
 205
 206 /*****************************************************************************
 207  * Module descriptor
 208  *****************************************************************************/
 209 vlc_module_begin();
 210     set_description( _("DirectX audio output") );
 211     set_capability( "audio output", 100 );
 212     set_category( CAT_AUDIO );
 213     set_subcategory( SUBCAT_AUDIO_AOUT );
 214     add_shortcut( "directx" );
 215     set_callbacks( OpenAudio, CloseAudio );
 216 vlc_module_end();
 217
 218 /*****************************************************************************
 219  * OpenAudio: open the audio device
 220  *****************************************************************************
 221  * This function opens and setups Direct Sound.
 222  *****************************************************************************/
 223 static int OpenAudio( vlc_object_t *p_this )
 224 {
 225     aout_instance_t * p_aout = (aout_instance_t *)p_this;
 226     vlc_value_t val;
 227     int i;
 228
 229     msg_Dbg( p_aout, "OpenAudio" );
 230
 231    /* Allocate structure */
 232     p_aout->output.p_sys = malloc( sizeof( aout_sys_t ) );
 233     if( p_aout->output.p_sys == NULL )
 234     {
 235         msg_Err( p_aout, "out of memory" );
 236         return VLC_EGENERIC;
 237     }
 238
 239     /* Initialize some variables */
 240     p_aout->output.p_sys->p_dsobject = NULL;
 241     p_aout->output.p_sys->p_dsbuffer = NULL;
 242     p_aout->output.p_sys->p_dsnotify = NULL;
 243     p_aout->output.p_sys->p_notif = NULL;
 244     p_aout->output.p_sys->b_playing = 0;
 245
 246     p_aout->output.pf_play = Play;
 247     aout_VolumeSoftInit( p_aout );
 248
 249     /* Initialise DirectSound */
 250     if( InitDirectSound( p_aout ) )
 251     {
 252         msg_Err( p_aout, "cannot initialize DirectSound" );
 253         goto error;
 254     }
 255
 256     if( var_Type( p_aout, "audio-device" ) == 0 )
 257     {
 258         Probe( p_aout );
 259     }
 260
 261     if( var_Get( p_aout, "audio-device", &val ) < 0 )
 262     {
 263         /* Probe() has failed. */
 264         goto error;
 265     }
 266
 267     /* Now we need to setup our DirectSound play notification structure */
 268     p_aout->output.p_sys->p_notif =
 269         vlc_object_create( p_aout, sizeof(notification_thread_t) );
 270     p_aout->output.p_sys->p_notif->p_aout = p_aout;
 271
 272     /* Then create the notification events */
 273     for( i = 0; i < FRAMES_NUM; i++ )
 274         p_aout->output.p_sys->p_notif->p_events[i].hEventNotify =
 275             CreateEvent( NULL, FALSE, FALSE, NULL );
 276
 277     /* Open the device */
 278     if( val.i_int == AOUT_VAR_SPDIF )
 279     {
 280         p_aout->output.output.i_format = VLC_FOURCC('s','p','d','i');
 281
 282         /* Calculate the frame size in bytes */
 283         p_aout->output.i_nb_samples = A52_FRAME_NB;
 284         p_aout->output.output.i_bytes_per_frame = AOUT_SPDIF_SIZE;
 285         p_aout->output.output.i_frame_length = A52_FRAME_NB;
 286         p_aout->output.p_sys->i_frame_size =
 287             p_aout->output.output.i_bytes_per_frame;
 288
 289         if( CreateDSBuffer( p_aout, VLC_FOURCC('s','p','d','i'),
 290                             p_aout->output.output.i_physical_channels,
 291                             aout_FormatNbChannels( &p_aout->output.output ),
 292                             p_aout->output.output.i_rate,
 293                             p_aout->output.p_sys->i_frame_size, VLC_FALSE )
 294             != VLC_SUCCESS )
 295         {
 296             msg_Err( p_aout, "cannot open directx audio device" );
 297             free( p_aout->output.p_sys );
 298             return VLC_EGENERIC;
 299         }
 300
 301         aout_VolumeNoneInit( p_aout );
 302     }
 303     else
 304     {
 305         if( val.i_int == AOUT_VAR_5_1 )
 306         {
 307             p_aout->output.output.i_physical_channels
 308                 = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
 309                    | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
 310                    | AOUT_CHAN_LFE;
 311         }
 312         else if( val.i_int == AOUT_VAR_3F2R )
 313         {
 314             p_aout->output.output.i_physical_channels
 315                 = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
 316                    | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
 317         }
 318         else if( val.i_int == AOUT_VAR_2F2R )
 319         {
 320             p_aout->output.output.i_physical_channels
 321                 = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
 322                    | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
 323         }
 324         else if( val.i_int == AOUT_VAR_MONO )
 325         {
 326             p_aout->output.output.i_physical_channels = AOUT_CHAN_CENTER;
 327         }
 328         else
 329         {
 330             p_aout->output.output.i_physical_channels
 331                 = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
 332         }
 333
 334         if( CreateDSBufferPCM( p_aout, &p_aout->output.output.i_format,
 335                                p_aout->output.output.i_physical_channels,
 336                                aout_FormatNbChannels( &p_aout->output.output ),
 337                                p_aout->output.output.i_rate, VLC_FALSE )
 338             != VLC_SUCCESS )
 339         {
 340             msg_Err( p_aout, "cannot open directx audio device" );
 341             free( p_aout->output.p_sys );
 342             return VLC_EGENERIC;
 343         }
 344
 345         /* Calculate the frame size in bytes */
 346         p_aout->output.i_nb_samples = FRAME_SIZE;
 347         aout_FormatPrepare( &p_aout->output.output );
 348         p_aout->output.p_sys->i_frame_size =
 349             FRAME_SIZE * p_aout->output.output.i_bytes_per_frame;
 350
 351         aout_VolumeSoftInit( p_aout );
 352     }
 353
 354     /* then launch the notification thread */
 355     msg_Dbg( p_aout, "creating DirectSoundThread" );
 356     if( vlc_thread_create( p_aout->output.p_sys->p_notif,
 357                            "DirectSound Notification Thread",
 358                            DirectSoundThread,
 359                            VLC_THREAD_PRIORITY_HIGHEST, VLC_FALSE ) )
 360     {
 361         msg_Err( p_aout, "cannot create DirectSoundThread" );
 362         goto error;
 363     }
 364
 365     vlc_object_attach( p_aout->output.p_sys->p_notif, p_aout );
 366
 367     return VLC_SUCCESS;
 368
 369  error:
 370     CloseAudio( VLC_OBJECT(p_aout) );
 371     return VLC_EGENERIC;
 372 }
 373
 374 /*****************************************************************************
 375  * Probe: probe the audio device for available formats and channels
 376  *****************************************************************************/
 377 static void Probe( aout_instance_t * p_aout )
 378 {
 379     vlc_value_t val, text;
 380     int i_format;
 381     unsigned int i_physical_channels;
 382     DWORD ui_speaker_config;
 383
 384     var_Create( p_aout, "audio-device", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
 385     text.psz_string = _("Audio Device");
 386     var_Change( p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL );
 387
 388     /* Test for 5.1 support */
 389     i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
 390                           AOUT_CHAN_CENTER | AOUT_CHAN_REARLEFT |
 391                           AOUT_CHAN_REARRIGHT | AOUT_CHAN_LFE;
 392     if( p_aout->output.output.i_physical_channels == i_physical_channels )
 393     {
 394         if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 6,
 395                                p_aout->output.output.i_rate, VLC_TRUE )
 396             == VLC_SUCCESS )
 397         {
 398             val.i_int = AOUT_VAR_5_1;
 399             text.psz_string = N_("5.1");
 400             var_Change( p_aout, "audio-device",
 401                         VLC_VAR_ADDCHOICE, &val, &text );
 402             msg_Dbg( p_aout, "device supports 5.1 channels" );
 403         }
 404     }
 405
 406     /* Test for 3 Front 2 Rear support */
 407     i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
 408                           AOUT_CHAN_CENTER | AOUT_CHAN_REARLEFT |
 409                           AOUT_CHAN_REARRIGHT;
 410     if( p_aout->output.output.i_physical_channels == i_physical_channels )
 411     {
 412         if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 5,
 413                                p_aout->output.output.i_rate, VLC_TRUE )
 414             == VLC_SUCCESS )
 415         {
 416             val.i_int = AOUT_VAR_3F2R;
 417             text.psz_string = N_("3 Front 2 Rear");
 418             var_Change( p_aout, "audio-device",
 419                         VLC_VAR_ADDCHOICE, &val, &text );
 420             msg_Dbg( p_aout, "device supports 5 channels" );
 421         }
 422     }
 423
 424     /* Test for 2 Front 2 Rear support */
 425     i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
 426                           AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
 427     if( ( p_aout->output.output.i_physical_channels & i_physical_channels )
 428         == i_physical_channels )
 429     {
 430         if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 4,
 431                                p_aout->output.output.i_rate, VLC_TRUE )
 432             == VLC_SUCCESS )
 433         {
 434             val.i_int = AOUT_VAR_2F2R;
 435             text.psz_string = N_("2 Front 2 Rear");
 436             var_Change( p_aout, "audio-device",
 437                         VLC_VAR_ADDCHOICE, &val, &text );
 438             msg_Dbg( p_aout, "device supports 4 channels" );
 439         }
 440     }
 441
 442     /* Test for stereo support */
 443     i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
 444     if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 2,
 445                            p_aout->output.output.i_rate, VLC_TRUE )
 446         == VLC_SUCCESS )
 447     {
 448         val.i_int = AOUT_VAR_STEREO;
 449         text.psz_string = N_("Stereo");
 450         var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
 451         var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
 452         msg_Dbg( p_aout, "device supports 2 channels" );
 453     }
 454
 455     /* Test for mono support */
 456     i_physical_channels = AOUT_CHAN_CENTER;
 457     if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 1,
 458                            p_aout->output.output.i_rate, VLC_TRUE )
 459         == VLC_SUCCESS )
 460     {
 461         val.i_int = AOUT_VAR_MONO;
 462         text.psz_string = N_("Mono");
 463         var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
 464         msg_Dbg( p_aout, "device supports 1 channel" );
 465     }
 466
 467     /* Check the speaker configuration to determine which channel config should
 468      * be the default */
 469     if FAILED( IDirectSound_GetSpeakerConfig( p_aout->output.p_sys->p_dsobject,
 470                                               &ui_speaker_config ) )
 471     {
 472         ui_speaker_config = DSSPEAKER_STEREO;
 473     }
 474     switch( DSSPEAKER_CONFIG(ui_speaker_config) )
 475     {
 476     case DSSPEAKER_5POINT1:
 477         val.i_int = AOUT_VAR_5_1;
 478         break;
 479     case DSSPEAKER_QUAD:
 480         val.i_int = AOUT_VAR_2F2R;
 481         break;
 482 #if 0 /* Lots of people just get their settings wrong and complain that
 483        * this is a problem with VLC so just don't ever set mono by default. */
 484     case DSSPEAKER_MONO:
 485         val.i_int = AOUT_VAR_MONO;
 486         break;
 487 #endif
 488     case DSSPEAKER_SURROUND:
 489     case DSSPEAKER_STEREO:
 490     default:
 491         val.i_int = AOUT_VAR_STEREO;
 492         break;
 493     }
 494     var_Set( p_aout, "audio-device", val );
 495
 496     /* Test for SPDIF support */
 497     if ( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) )
 498     {
 499         if( CreateDSBuffer( p_aout, VLC_FOURCC('s','p','d','i'),
 500                             p_aout->output.output.i_physical_channels,
 501                             aout_FormatNbChannels( &p_aout->output.output ),
 502                             p_aout->output.output.i_rate,
 503                             AOUT_SPDIF_SIZE, VLC_TRUE )
 504             == VLC_SUCCESS )
 505         {
 506             msg_Dbg( p_aout, "device supports A/52 over S/PDIF" );
 507             val.i_int = AOUT_VAR_SPDIF;
 508             text.psz_string = N_("A/52 over S/PDIF");
 509             var_Change( p_aout, "audio-device",
 510                         VLC_VAR_ADDCHOICE, &val, &text );
 511             if( config_GetInt( p_aout, "spdif" ) )
 512                 var_Set( p_aout, "audio-device", val );
 513         }
 514     }
 515
 516     var_Change( p_aout, "audio-device", VLC_VAR_CHOICESCOUNT, &val, NULL );
 517     if( val.i_int <= 0 )
 518     {
 519         /* Probe() has failed. */
 520         var_Destroy( p_aout, "audio-device" );
 521         return;
 522     }
 523
 524     var_AddCallback( p_aout, "audio-device", aout_ChannelsRestart, NULL );
 525
 526     val.b_bool = VLC_TRUE;
 527     var_Set( p_aout, "intf-change", val );
 528 }
 529
 530 /*****************************************************************************
 531  * Play: we'll start playing the directsound buffer here because at least here
 532  *       we know the first buffer has been put in the aout fifo and we also
 533  *       know its date.
 534  *****************************************************************************/
 535 static void Play( aout_instance_t *p_aout )
 536 {
 537     if( !p_aout->output.p_sys->b_playing )
 538     {
 539         aout_buffer_t *p_buffer;
 540
 541         p_aout->output.p_sys->b_playing = 1;
 542
 543         /* get the playing date of the first aout buffer */
 544         p_aout->output.p_sys->p_notif->start_date =
 545             aout_FifoFirstDate( p_aout, &p_aout->output.fifo );
 546
 547         /* fill in the first samples */
 548         p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
 549         FillBuffer( p_aout, 0, p_buffer );
 550
 551         /* wake up the audio output thread */
 552         SetEvent( p_aout->output.p_sys->p_notif->p_events[0].hEventNotify );
 553     }
 554 }
 555
 556 /*****************************************************************************
 557  * CloseAudio: close the audio device
 558  *****************************************************************************/
 559 static void CloseAudio( vlc_object_t *p_this )
 560 {
 561     aout_instance_t * p_aout = (aout_instance_t *)p_this;
 562     aout_sys_t *p_sys = p_aout->output.p_sys;
 563
 564     msg_Dbg( p_aout, "CloseAudio" );
 565
 566     /* kill the position notification thread, if any */
 567     if( p_sys->p_notif )
 568     {
 569         vlc_object_detach( p_sys->p_notif );
 570         if( p_sys->p_notif->b_thread )
 571         {
 572             p_sys->p_notif->b_die = 1;
 573
 574             if( !p_sys->b_playing )
 575                 /* wake up the audio thread */
 576                 SetEvent( p_sys->p_notif->p_events[0].hEventNotify );
 577
 578             vlc_thread_join( p_sys->p_notif );
 579         }
 580         vlc_object_destroy( p_sys->p_notif );
 581     }
 582
 583     /* release the secondary buffer */
 584     DestroyDSBuffer( p_aout );
 585
 586     /* finally release the DirectSound object */
 587     if( p_sys->p_dsobject ) IDirectSound_Release( p_sys->p_dsobject );
 588
 589     /* free DSOUND.DLL */
 590     if( p_sys->hdsound_dll ) FreeLibrary( p_sys->hdsound_dll );
 591
 592     free( p_sys );
 593 }
 594
 595 /*****************************************************************************
 596  * InitDirectSound: handle all the gory details of DirectSound initialisation
 597  *****************************************************************************/
 598 static int InitDirectSound( aout_instance_t *p_aout )
 599 {
 600     HRESULT (WINAPI *OurDirectSoundCreate)(LPGUID, LPDIRECTSOUND *, LPUNKNOWN);
 601
 602     p_aout->output.p_sys->hdsound_dll = LoadLibrary("DSOUND.DLL");
 603     if( p_aout->output.p_sys->hdsound_dll == NULL )
 604     {
 605         msg_Warn( p_aout, "cannot open DSOUND.DLL" );
 606         goto error;
 607     }
 608
 609     OurDirectSoundCreate = (void *)GetProcAddress(
 610                                            p_aout->output.p_sys->hdsound_dll,
 611                                            "DirectSoundCreate" );
 612     if( OurDirectSoundCreate == NULL )
 613     {
 614         msg_Warn( p_aout, "GetProcAddress FAILED" );
 615         goto error;
 616     }
 617
 618     /* Create the direct sound object */
 619     if FAILED( OurDirectSoundCreate( NULL, &p_aout->output.p_sys->p_dsobject,
 620                                      NULL ) )
 621     {
 622         msg_Warn( p_aout, "cannot create a direct sound device" );
 623         goto error;
 624     }
 625
 626     /* Set DirectSound Cooperative level, ie what control we want over Windows
 627      * sound device. In our case, DSSCL_EXCLUSIVE means that we can modify the
 628      * settings of the primary buffer, but also that only the sound of our
 629      * application will be hearable when it will have the focus.
 630      * !!! (this is not really working as intended yet because to set the
 631      * cooperative level you need the window handle of your application, and
 632      * I don't know of any easy way to get it. Especially since we might play
 633      * sound without any video, and so what window handle should we use ???
 634      * The hack for now is to use the Desktop window handle - it seems to be
 635      * working */
 636     if( IDirectSound_SetCooperativeLevel( p_aout->output.p_sys->p_dsobject,
 637                                           GetDesktopWindow(),
 638                                           DSSCL_EXCLUSIVE) )
 639     {
 640         msg_Warn( p_aout, "cannot set direct sound cooperative level" );
 641     }
 642
 643     return VLC_SUCCESS;
 644
 645  error:
 646     p_aout->output.p_sys->p_dsobject = NULL;
 647     if( p_aout->output.p_sys->hdsound_dll )
 648     {
 649         FreeLibrary( p_aout->output.p_sys->hdsound_dll );
 650         p_aout->output.p_sys->hdsound_dll = NULL;
 651     }
 652     return VLC_EGENERIC;
 653
 654 }
 655
 656 /*****************************************************************************
 657  * CreateDSBuffer: Creates a direct sound buffer of the required format.
 658  *****************************************************************************
 659  * This function creates the buffer we'll use to play audio.
 660  * In DirectSound there are two kinds of buffers:
 661  * - the primary buffer: which is the actual buffer that the soundcard plays
 662  * - the secondary buffer(s): these buffers are the one actually used by
 663  *    applications and DirectSound takes care of mixing them into the primary.
 664  *
 665  * Once you create a secondary buffer, you cannot change its format anymore so
 666  * you have to release the current one and create another.
 667  *****************************************************************************/
 668 static int CreateDSBuffer( aout_instance_t *p_aout, int i_format,
 669                            int i_channels, int i_nb_channels, int i_rate,
 670                            int i_bytes_per_frame, vlc_bool_t b_probe )
 671 {
 672     WAVEFORMATEXTENSIBLE waveformat;
 673     DSBUFFERDESC         dsbdesc;
 674     unsigned int         i;
 675
 676     /* First set the sound buffer format */
 677     waveformat.dwChannelMask = 0;
 678     for( i = 0; i < sizeof(pi_channels_src)/sizeof(uint32_t); i++ )
 679     {
 680         if( i_channels & pi_channels_src[i] )
 681             waveformat.dwChannelMask |= pi_channels_in[i];
 682     }
 683
 684     switch( i_format )
 685     {
 686     case VLC_FOURCC('s','p','d','i'):
 687         i_nb_channels = 2;
 688         /* To prevent channel re-ordering */
 689         waveformat.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
 690         waveformat.Format.wBitsPerSample = 16;
 691         waveformat.Samples.wValidBitsPerSample =
 692             waveformat.Format.wBitsPerSample;
 693         waveformat.Format.wFormatTag = WAVE_FORMAT_DOLBY_AC3_SPDIF;
 694         waveformat.SubFormat = _KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF;
 695         break;
 696
 697     case VLC_FOURCC('f','l','3','2'):
 698         waveformat.Format.wBitsPerSample = sizeof(float) * 8;
 699         waveformat.Samples.wValidBitsPerSample =
 700             waveformat.Format.wBitsPerSample;
 701         waveformat.Format.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
 702         waveformat.SubFormat = _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
 703         break;
 704
 705     case VLC_FOURCC('s','1','6','l'):
 706         waveformat.Format.wBitsPerSample = 16;
 707         waveformat.Samples.wValidBitsPerSample =
 708             waveformat.Format.wBitsPerSample;
 709         waveformat.Format.wFormatTag = WAVE_FORMAT_PCM;
 710         waveformat.SubFormat = _KSDATAFORMAT_SUBTYPE_PCM;
 711         break;
 712     }
 713
 714     waveformat.Format.nChannels = i_nb_channels;
 715     waveformat.Format.nSamplesPerSec = i_rate;
 716     waveformat.Format.nBlockAlign =
 717         waveformat.Format.wBitsPerSample / 8 * i_nb_channels;
 718     waveformat.Format.nAvgBytesPerSec =
 719         waveformat.Format.nSamplesPerSec * waveformat.Format.nBlockAlign;
 720
 721     p_aout->output.p_sys->i_bits_per_sample = waveformat.Format.wBitsPerSample;
 722     p_aout->output.p_sys->i_channels = i_nb_channels;
 723
 724     /* Then fill in the direct sound descriptor */
 725     memset(&dsbdesc, 0, sizeof(DSBUFFERDESC));
 726     dsbdesc.dwSize = sizeof(DSBUFFERDESC);
 727     dsbdesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2/* Better position accuracy */
 728                     | DSBCAPS_CTRLPOSITIONNOTIFY     /* We need notification */
 729                     | DSBCAPS_GLOBALFOCUS;      /* Allows background playing */
 730
 731     /* Only use the new WAVE_FORMAT_EXTENSIBLE format for multichannel audio */
 732     if( i_nb_channels <= 2 )
 733     {
 734         waveformat.Format.cbSize = 0;
 735     }
 736     else
 737     {
 738         waveformat.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
 739         waveformat.Format.cbSize =
 740             sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
 741
 742         /* Needed for 5.1 on emu101k */
 743         dsbdesc.dwFlags |= DSBCAPS_LOCHARDWARE;
 744     }
 745
 746     dsbdesc.dwBufferBytes = FRAMES_NUM * i_bytes_per_frame;   /* buffer size */
 747     dsbdesc.lpwfxFormat = (WAVEFORMATEX *)&waveformat;
 748
 749     if FAILED( IDirectSound_CreateSoundBuffer(
 750                    p_aout->output.p_sys->p_dsobject, &dsbdesc,
 751                    &p_aout->output.p_sys->p_dsbuffer, NULL) )
 752     {
 753         if( dsbdesc.dwFlags & DSBCAPS_LOCHARDWARE )
 754         {
 755             /* Try without DSBCAPS_LOCHARDWARE */
 756             dsbdesc.dwFlags &= ~DSBCAPS_LOCHARDWARE;
 757             if FAILED( IDirectSound_CreateSoundBuffer(
 758                    p_aout->output.p_sys->p_dsobject, &dsbdesc,
 759                    &p_aout->output.p_sys->p_dsbuffer, NULL) )
 760             {
 761                 return VLC_EGENERIC;
 762             }
 763             if( !b_probe )
 764                 msg_Dbg( p_aout, "couldn't use hardware sound buffer" );
 765         }
 766         else
 767         {
 768             return VLC_EGENERIC;
 769         }
 770     }
 771
 772     /* Stop here if we were just probing */
 773     if( b_probe )
 774     {
 775         IDirectSoundBuffer_Release( p_aout->output.p_sys->p_dsbuffer );
 776         p_aout->output.p_sys->p_dsbuffer = NULL;
 777         return VLC_SUCCESS;
 778     }
 779
 780     /* Backup the size of a frame */
 781     p_aout->output.p_sys->p_notif->i_frame_size = i_bytes_per_frame;
 782
 783     /* Now the secondary buffer is created, we need to setup its position
 784      * notification */
 785     for( i = 0; i < FRAMES_NUM; i++ )
 786     {
 787         p_aout->output.p_sys->p_notif->p_events[i].dwOffset = i *
 788             p_aout->output.p_sys->p_notif->i_frame_size;
 789
 790         p_aout->output.p_sys->p_notif->i_frame_status[i] = FRAME_EMPTY;
 791     }
 792
 793     /* Get the IDirectSoundNotify interface */
 794     if FAILED( IDirectSoundBuffer_QueryInterface(
 795                                 p_aout->output.p_sys->p_dsbuffer,
 796                                 &IID_IDirectSoundNotify,
 797                                 (LPVOID *)&p_aout->output.p_sys->p_dsnotify ) )
 798     {
 799         msg_Err( p_aout, "cannot get IDirectSoundNotify interface" );
 800         goto error;
 801     }
 802
 803     if FAILED( IDirectSoundNotify_SetNotificationPositions(
 804                                     p_aout->output.p_sys->p_dsnotify,
 805                                     FRAMES_NUM,
 806                                     p_aout->output.p_sys->p_notif->p_events ) )
 807     {
 808         msg_Err( p_aout, "cannot set position notification" );
 809         goto error;
 810     }
 811
 812     p_aout->output.p_sys->i_channel_mask = waveformat.dwChannelMask;
 813
 814     p_aout->output.p_sys->b_chan_reorder =
 815         aout_CheckChannelReorder( pi_channels_in, pi_channels_out,
 816                                   waveformat.dwChannelMask, i_nb_channels,
 817                                   p_aout->output.p_sys->pi_chan_table );
 818
 819     if( p_aout->output.p_sys->b_chan_reorder )
 820     {
 821         msg_Dbg( p_aout, "channel reordering needed" );
 822     }
 823
 824     return VLC_SUCCESS;
 825
 826  error:
 827     DestroyDSBuffer( p_aout );
 828     return VLC_EGENERIC;
 829 }
 830
 831 /*****************************************************************************
 832  * CreateDSBufferPCM: creates a PCM direct sound buffer.
 833  *****************************************************************************
 834  * We first try to create a WAVE_FORMAT_IEEE_FLOAT buffer if supported by
 835  * the hardware, otherwise we create a WAVE_FORMAT_PCM buffer.
 836  ****************************************************************************/
 837 static int CreateDSBufferPCM( aout_instance_t *p_aout, int *i_format,
 838                               int i_channels, int i_nb_channels, int i_rate,
 839                               vlc_bool_t b_probe )
 840 {
 841     /* Float32 audio samples are not supported for 5.1 output on the emu101k */
 842
 843     if( i_nb_channels > 2 ||
 844         CreateDSBuffer( p_aout, VLC_FOURCC('f','l','3','2'),
 845                         i_channels, i_nb_channels, i_rate,
 846                         FRAME_SIZE * 4 * i_nb_channels, b_probe )
 847         != VLC_SUCCESS )
 848     {
 849         if ( CreateDSBuffer( p_aout, VLC_FOURCC('s','1','6','l'),
 850                              i_channels, i_nb_channels, i_rate,
 851                              FRAME_SIZE * 2 * i_nb_channels, b_probe )
 852              != VLC_SUCCESS )
 853         {
 854             return VLC_EGENERIC;
 855         }
 856         else
 857         {
 858             *i_format = VLC_FOURCC('s','1','6','l');
 859             return VLC_SUCCESS;
 860         }
 861     }
 862     else
 863     {
 864         *i_format = VLC_FOURCC('f','l','3','2');
 865         return VLC_SUCCESS;
 866     }
 867 }
 868
 869 /*****************************************************************************
 870  * DestroyDSBuffer
 871  *****************************************************************************
 872  * This function destroys the secondary buffer.
 873  *****************************************************************************/
 874 static void DestroyDSBuffer( aout_instance_t *p_aout )
 875 {
 876     if( p_aout->output.p_sys->p_dsnotify )
 877     {
 878         IDirectSoundNotify_Release( p_aout->output.p_sys->p_dsnotify );
 879         p_aout->output.p_sys->p_dsnotify = NULL;
 880     }
 881
 882     if( p_aout->output.p_sys->p_dsbuffer )
 883     {
 884         IDirectSoundBuffer_Release( p_aout->output.p_sys->p_dsbuffer );
 885         p_aout->output.p_sys->p_dsbuffer = NULL;
 886     }
 887 }
 888
 889 /*****************************************************************************
 890  * FillBuffer: Fill in one of the direct sound frame buffers.
 891  *****************************************************************************
 892  * Returns VLC_SUCCESS on success.
 893  *****************************************************************************/
 894 static int FillBuffer( aout_instance_t *p_aout, int i_frame,
 895                        aout_buffer_t *p_buffer )
 896 {
 897     notification_thread_t *p_notif = p_aout->output.p_sys->p_notif;
 898     aout_sys_t *p_sys = p_aout->output.p_sys;
 899     void *p_write_position, *p_wrap_around;
 900     long l_bytes1, l_bytes2;
 901     HRESULT dsresult;
 902
 903     /* Before copying anything, we have to lock the buffer */
 904     dsresult = IDirectSoundBuffer_Lock(
 905                 p_sys->p_dsbuffer,                              /* DS buffer */
 906                 i_frame * p_notif->i_frame_size,             /* Start offset */
 907                 p_notif->i_frame_size,                    /* Number of bytes */
 908                 &p_write_position,                  /* Address of lock start */
 909                 &l_bytes1,       /* Count of bytes locked before wrap around */
 910                 &p_wrap_around,            /* Buffer adress (if wrap around) */
 911                 &l_bytes2,               /* Count of bytes after wrap around */
 912                 0 );                                                /* Flags */
 913     if( dsresult == DSERR_BUFFERLOST )
 914     {
 915         IDirectSoundBuffer_Restore( p_sys->p_dsbuffer );
 916         dsresult = IDirectSoundBuffer_Lock(
 917                                p_sys->p_dsbuffer,
 918                                i_frame * p_notif->i_frame_size,
 919                                p_notif->i_frame_size,
 920                                &p_write_position,
 921                                &l_bytes1,
 922                                &p_wrap_around,
 923                                &l_bytes2,
 924                                0 );
 925     }
 926     if( dsresult != DS_OK )
 927     {
 928         msg_Warn( p_notif, "cannot lock buffer" );
 929         if( p_buffer ) aout_BufferFree( p_buffer );
 930         return VLC_EGENERIC;
 931     }
 932
 933     if( p_buffer == NULL )
 934     {
 935         memset( p_write_position, 0, l_bytes1 );
 936     }
 937     else
 938     {
 939         if( p_sys->b_chan_reorder )
 940         {
 941             /* Do the channel reordering here */
 942             aout_ChannelReorder( p_buffer->p_buffer, p_buffer->i_nb_bytes,
 943                                  p_sys->i_channels, p_sys->pi_chan_table,
 944                                  p_sys->i_bits_per_sample );
 945         }
 946
 947         p_aout->p_vlc->pf_memcpy( p_write_position, p_buffer->p_buffer,
 948                                   l_bytes1 );
 949         aout_BufferFree( p_buffer );
 950     }
 951
 952     /* Now the data has been copied, unlock the buffer */
 953     IDirectSoundBuffer_Unlock( p_sys->p_dsbuffer, p_write_position, l_bytes1,
 954                                p_wrap_around, l_bytes2 );
 955
 956     return VLC_SUCCESS;
 957 }
 958
 959 /*****************************************************************************
 960  * DirectSoundThread: this thread will capture play notification events.
 961  *****************************************************************************
 962  * We use this thread to emulate a callback mechanism. The thread probes for
 963  * event notification and fills up the DS secondary buffer when needed.
 964  *****************************************************************************/
 965 static void DirectSoundThread( notification_thread_t *p_notif )
 966 {
 967     HANDLE  notification_events[FRAMES_NUM];
 968     HRESULT dsresult;
 969     aout_instance_t *p_aout = p_notif->p_aout;
 970     int i, i_which_frame, i_last_frame, i_next_frame;
 971     mtime_t mtime;
 972     vlc_bool_t b_sleek;
 973
 974     for( i = 0; i < FRAMES_NUM; i++ )
 975         notification_events[i] = p_notif->p_events[i].hEventNotify;
 976
 977     /* We don't want any resampling when using S/PDIF output */
 978     b_sleek = p_aout->output.output.i_format == VLC_FOURCC('s','p','d','i');
 979
 980     /* Tell the main thread that we are ready */
 981     vlc_thread_ready( p_notif );
 982
 983     msg_Dbg( p_notif, "DirectSoundThread ready" );
 984
 985     /* Wait here until Play() is called */
 986     WaitForSingleObject( notification_events[0], INFINITE );
 987
 988     if( !p_notif->b_die )
 989     {
 990         mwait( p_notif->start_date - AOUT_PTS_TOLERANCE / 2 );
 991
 992         /* start playing the buffer */
 993         dsresult = IDirectSoundBuffer_Play( p_aout->output.p_sys->p_dsbuffer,
 994                                         0,                         /* Unused */
 995                                         0,                         /* Unused */
 996                                         DSBPLAY_LOOPING );          /* Flags */
 997         if( dsresult == DSERR_BUFFERLOST )
 998         {
 999             IDirectSoundBuffer_Restore( p_aout->output.p_sys->p_dsbuffer );
1000             dsresult = IDirectSoundBuffer_Play(
1001                                             p_aout->output.p_sys->p_dsbuffer,
1002                                             0,                     /* Unused */
1003                                             0,                     /* Unused */
1004                                             DSBPLAY_LOOPING );      /* Flags */
1005         }
1006         if( dsresult != DS_OK )
1007         {
1008             msg_Err( p_aout, "cannot start playing buffer" );
1009         }
1010     }
1011
1012     while( !p_notif->b_die )
1013     {
1014         aout_buffer_t *p_buffer;
1015         long l_latency;
1016
1017         /* wait for the position notification */
1018         i_which_frame = WaitForMultipleObjects( FRAMES_NUM,
1019                                                 notification_events, 0,
1020                                                 INFINITE ) - WAIT_OBJECT_0;
1021
1022         if( p_notif->b_die )
1023             break;
1024
1025         mtime = mdate();
1026
1027         /* We take into account the current latency */
1028         if SUCCEEDED( IDirectSoundBuffer_GetCurrentPosition(
1029                         p_aout->output.p_sys->p_dsbuffer,
1030                         &l_latency, NULL ) )
1031         {
1032             if( l_latency > (i_which_frame * FRAME_SIZE)
1033                   && l_latency < ((i_which_frame+1) * FRAME_SIZE) )
1034             {
1035                 l_latency = - ( l_latency /
1036                                 p_aout->output.output.i_bytes_per_frame %
1037                                 FRAME_SIZE );
1038             }
1039             else
1040             {
1041                 l_latency = FRAME_SIZE - ( l_latency /
1042                                       p_aout->output.output.i_bytes_per_frame %
1043                                       FRAME_SIZE );
1044             }
1045         }
1046         else
1047         {
1048             l_latency = 0;
1049         }
1050
1051         /* Mark last frame as empty */
1052         i_last_frame = (i_which_frame + FRAMES_NUM -1) % FRAMES_NUM;
1053         i_next_frame = (i_which_frame + 1) % FRAMES_NUM;
1054         p_notif->i_frame_status[i_last_frame] = FRAME_EMPTY;
1055
1056         /* Try to fill in as many frame buffers as possible */
1057         for( i = i_next_frame; (i % FRAMES_NUM) != i_which_frame; i++ )
1058         {
1059
1060             /* Check if frame buf is already filled */
1061             if( p_notif->i_frame_status[i % FRAMES_NUM] == FRAME_QUEUED )
1062                 continue;
1063
1064             p_buffer = aout_OutputNextBuffer( p_aout,
1065                 mtime + 1000000 / p_aout->output.output.i_rate *
1066                 ((i - i_next_frame + 1) * FRAME_SIZE + l_latency), b_sleek );
1067
1068             /* If there is no audio data available and we have some buffered
1069              * already, then just wait for the next time */
1070             if( !p_buffer && (i != i_next_frame) )
1071             {
1072                 //msg_Err( p_aout, "only %i frame buffers filled!",
1073                 //         i - i_next_frame );
1074                 break;
1075             }
1076
1077             if( FillBuffer( p_aout, (i%FRAMES_NUM), p_buffer )
1078                 != VLC_SUCCESS )
1079                 break;
1080
1081             /* Mark the frame buffer as QUEUED */
1082             p_notif->i_frame_status[i%FRAMES_NUM] = FRAME_QUEUED;
1083         }
1084
1085     }
1086
1087     /* make sure the buffer isn't playing */
1088     IDirectSoundBuffer_Stop( p_aout->output.p_sys->p_dsbuffer );
1089
1090     /* free the events */
1091     for( i = 0; i < FRAMES_NUM; i++ )
1092         CloseHandle( notification_events[i] );
1093
1094     msg_Dbg( p_notif, "DirectSoundThread exiting" );
1095 }