directx.c 45 KB
Newer Older
1
/*****************************************************************************
2
 * directx.c: Windows DirectX audio output method
3
 *****************************************************************************
4
 * Copyright (C) 2001-2009 the VideoLAN team
5
 * $Id$
6
 *
7
 * Authors: Gildas Bazin <gbazin@videolan.org>
8 9 10 11 12 13 14 15 16 17 18 19 20
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
dionoea's avatar
dionoea committed
21
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 23 24 25 26 27
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/

28 29 30 31
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

32
#include <vlc_common.h>
33
#include <vlc_plugin.h>
zorglub's avatar
zorglub committed
34
#include <vlc_aout.h>
35
#include <vlc_charset.h>
36

37 38
#include "windows_audio_common.h"

39 40
#include <dsound.h>

41
#define FRAME_SIZE ((int)p_aout->output.output.i_rate/20) /* Size in samples */
gbazin's avatar
 
gbazin committed
42

43 44 45 46 47 48 49
/*****************************************************************************
 * notification_thread_t: DirectX event thread
 *****************************************************************************/
typedef struct notification_thread_t
{
    VLC_COMMON_MEMBERS

50 51 52
    aout_instance_t *p_aout;
    int i_frame_size;                          /* size in bytes of one frame */
    int i_write_slot;       /* current write position in our circular buffer */
gbazin's avatar
 
gbazin committed
53 54

    mtime_t start_date;
55
    HANDLE event;
56 57 58 59 60 61 62 63 64 65 66

} notification_thread_t;

/*****************************************************************************
 * aout_sys_t: directx audio output method descriptor
 *****************************************************************************
 * This structure is part of the audio output thread descriptor.
 * It describes the direct sound specific properties of an audio device.
 *****************************************************************************/
struct aout_sys_t
{
gbazin's avatar
 
gbazin committed
67
    HINSTANCE           hdsound_dll;      /* handle of the opened dsound dll */
68

69
    char *              psz_device;         /* user defined device name */
70 71
    LPGUID              p_device_guid;

72 73 74 75 76
    LPDIRECTSOUND       p_dsobject;              /* main Direct Sound object */
    LPDIRECTSOUNDBUFFER p_dsbuffer;   /* the sound buffer we use (direct sound
                                       * takes care of mixing all the
                                       * secondary buffers into the primary) */

gbazin's avatar
 
gbazin committed
77
    notification_thread_t *p_notif;                  /* DirectSoundThread id */
78

gbazin's avatar
 
gbazin committed
79
    int b_playing;                                         /* playing status */
80

gbazin's avatar
 
gbazin committed
81
    int i_frame_size;                         /* Size in bytes of one frame */
gbazin's avatar
 
gbazin committed
82

83 84
    int i_speaker_setup;                 /* Speaker setup override */

85
    bool b_chan_reorder;              /* do we need channel reordering */
86
    int pi_chan_table[AOUT_CHAN_MAX];
gbazin's avatar
 
gbazin committed
87
    uint32_t i_channel_mask;
88 89
    uint32_t i_bits_per_sample;
    uint32_t i_channels;
90 91 92 93 94
};

/*****************************************************************************
 * Local prototypes.
 *****************************************************************************/
gbazin's avatar
 
gbazin committed
95 96 97
static int  OpenAudio  ( vlc_object_t * );
static void CloseAudio ( vlc_object_t * );
static void Play       ( aout_instance_t * );
98 99

/* local functions */
gbazin's avatar
 
gbazin committed
100 101
static void Probe             ( aout_instance_t * );
static int  InitDirectSound   ( aout_instance_t * );
102
static int  CreateDSBuffer    ( aout_instance_t *, int, int, int, int, int, bool );
103
static int  CreateDSBufferPCM ( aout_instance_t *, vlc_fourcc_t*, int, int, int, bool );
gbazin's avatar
 
gbazin committed
104
static void DestroyDSBuffer   ( aout_instance_t * );
105
static void* DirectSoundThread( vlc_object_t * );
gbazin's avatar
 
gbazin committed
106 107
static int  FillBuffer        ( aout_instance_t *, int, aout_buffer_t * );

108 109 110
static int ReloadDirectXDevices( vlc_object_t *, char const *,
                                vlc_value_t, vlc_value_t, void * );

111 112 113
/* Speaker setup override options list */
static const char *const speaker_list[] = { "Windows default", "Mono", "Stereo",
                                            "Quad", "5.1", "7.1" };
114 115
static const char *const ppsz_adev[] = {"default",  };
static const char *const ppsz_adev_text[] = {"default", };
116

gbazin's avatar
 
gbazin committed
117 118 119
/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
120
#define DEVICE_TEXT N_("Output device")
121
#define DEVICE_LONGTEXT N_("Select your audio output device")
122

123
#define SPEAKER_TEXT N_("Speaker configuration")
124 125
#define SPEAKER_LONGTEXT N_("Select speaker configuration you want to use. " \
    "This option doesn't upmix! So NO e.g. Stereo -> 5.1 conversion." )
126

127 128 129 130 131 132 133
vlc_module_begin ()
    set_description( N_("DirectX audio output") )
    set_shortname( "DirectX" )
    set_capability( "audio output", 100 )
    set_category( CAT_AUDIO )
    set_subcategory( SUBCAT_AUDIO_AOUT )
    add_shortcut( "directx" )
134 135 136 137
    add_string( "directx-audio-device-name", "default", NULL,
             DEVICE_TEXT, DEVICE_LONGTEXT, false )
    change_string_list( ppsz_adev, ppsz_adev_text, ReloadDirectXDevices )
    change_action_add( ReloadDirectXDevices, N_("Refresh list") )
ivoire's avatar
ivoire committed
138
    add_bool( "directx-audio-float32", false, NULL, FLOAT_TEXT,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
139
              FLOAT_LONGTEXT, true )
140 141 142 143
    add_string( "directx-audio-speaker", "Windows default", NULL,
                 SPEAKER_TEXT, SPEAKER_LONGTEXT, true )
        change_string_list( speaker_list, 0, 0 )
        change_need_restart ()
144

145 146
    set_callbacks( OpenAudio, CloseAudio )
vlc_module_end ()
gbazin's avatar
 
gbazin committed
147

148 149 150 151 152
/*****************************************************************************
 * OpenAudio: open the audio device
 *****************************************************************************
 * This function opens and setups Direct Sound.
 *****************************************************************************/
gbazin's avatar
 
gbazin committed
153
static int OpenAudio( vlc_object_t *p_this )
154
{
gbazin's avatar
 
gbazin committed
155
    aout_instance_t * p_aout = (aout_instance_t *)p_this;
gbazin's avatar
 
gbazin committed
156
    vlc_value_t val;
157 158 159 160
    char * psz_speaker;
    int i = 0;

    const char * const * ppsz_compare = speaker_list;
161

gbazin's avatar
 
gbazin committed
162
    msg_Dbg( p_aout, "OpenAudio" );
163 164

   /* Allocate structure */
gbazin's avatar
 
gbazin committed
165 166
    p_aout->output.p_sys = malloc( sizeof( aout_sys_t ) );
    if( p_aout->output.p_sys == NULL )
167
        return VLC_ENOMEM;
168 169

    /* Initialize some variables */
gbazin's avatar
 
gbazin committed
170 171 172
    p_aout->output.p_sys->p_dsobject = NULL;
    p_aout->output.p_sys->p_dsbuffer = NULL;
    p_aout->output.p_sys->p_notif = NULL;
gbazin's avatar
 
gbazin committed
173
    p_aout->output.p_sys->b_playing = 0;
gbazin's avatar
 
gbazin committed
174 175

    p_aout->output.pf_play = Play;
176
    aout_VolumeSoftInit( p_aout );
177

178 179 180
    /* Retrieve config values */
    var_Create( p_aout, "directx-audio-float32",
                VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
181
    psz_speaker = var_CreateGetString( p_aout, "directx-audio-speaker" );
182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198

    while ( *ppsz_compare != NULL )
    {
        if ( !strncmp( *ppsz_compare, psz_speaker, strlen(*ppsz_compare) ) )
        {
            break;
        }
        ppsz_compare++; i++;
    }

    if ( *ppsz_compare == NULL )
    {
        msg_Err( p_aout, "(%s) isn't valid speaker setup option",
                 psz_speaker );
        msg_Err( p_aout, "Defaulting to Windows default speaker config");
        i = 0;
    }
199
    free( psz_speaker );
200 201
    p_aout->output.p_sys->i_speaker_setup = i;

202 203
    p_aout->output.p_sys->p_device_guid = 0;

204
    /* Initialise DirectSound */
gbazin's avatar
 
gbazin committed
205
    if( InitDirectSound( p_aout ) )
206
    {
gbazin's avatar
 
gbazin committed
207 208
        msg_Err( p_aout, "cannot initialize DirectSound" );
        goto error;
209 210
    }

gbazin's avatar
 
gbazin committed
211 212 213 214 215 216 217 218
    if( var_Type( p_aout, "audio-device" ) == 0 )
    {
        Probe( p_aout );
    }

    if( var_Get( p_aout, "audio-device", &val ) < 0 )
    {
        /* Probe() has failed. */
gbazin's avatar
 
gbazin committed
219
        goto error;
gbazin's avatar
 
gbazin committed
220 221 222
    }

    /* Open the device */
gbazin's avatar
 
gbazin committed
223
    if( val.i_int == AOUT_VAR_SPDIF )
224
    {
225
        p_aout->output.output.i_format = VLC_CODEC_SPDIFL;
gbazin's avatar
 
gbazin committed
226 227 228 229 230 231 232 233

        /* Calculate the frame size in bytes */
        p_aout->output.i_nb_samples = A52_FRAME_NB;
        p_aout->output.output.i_bytes_per_frame = AOUT_SPDIF_SIZE;
        p_aout->output.output.i_frame_length = A52_FRAME_NB;
        p_aout->output.p_sys->i_frame_size =
            p_aout->output.output.i_bytes_per_frame;

234
        if( CreateDSBuffer( p_aout, VLC_CODEC_SPDIFL,
gbazin's avatar
 
gbazin committed
235 236 237
                            p_aout->output.output.i_physical_channels,
                            aout_FormatNbChannels( &p_aout->output.output ),
                            p_aout->output.output.i_rate,
238
                            p_aout->output.p_sys->i_frame_size, false )
gbazin's avatar
 
gbazin committed
239 240
            != VLC_SUCCESS )
        {
gbazin's avatar
 
gbazin committed
241
            msg_Err( p_aout, "cannot open directx audio device" );
gbazin's avatar
 
gbazin committed
242 243 244 245 246 247 248 249
            free( p_aout->output.p_sys );
            return VLC_EGENERIC;
        }

        aout_VolumeNoneInit( p_aout );
    }
    else
    {
gbazin's avatar
 
gbazin committed
250
        if( val.i_int == AOUT_VAR_5_1 )
gbazin's avatar
 
gbazin committed
251 252 253 254 255 256
        {
            p_aout->output.output.i_physical_channels
                = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
                   | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
                   | AOUT_CHAN_LFE;
        }
257 258 259 260 261 262 263 264
        else if( val.i_int == AOUT_VAR_7_1 )
        {
                    p_aout->output.output.i_physical_channels
                        = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
                           | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
                           | AOUT_CHAN_MIDDLELEFT | AOUT_CHAN_MIDDLERIGHT
                           | AOUT_CHAN_LFE;
        }
265 266 267 268 269 270
        else if( val.i_int == AOUT_VAR_3F2R )
        {
            p_aout->output.output.i_physical_channels
                = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
                   | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
        }
gbazin's avatar
 
gbazin committed
271
        else if( val.i_int == AOUT_VAR_2F2R )
gbazin's avatar
 
gbazin committed
272 273 274 275 276
        {
            p_aout->output.output.i_physical_channels
                = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
                   | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
        }
gbazin's avatar
 
gbazin committed
277
        else if( val.i_int == AOUT_VAR_MONO )
gbazin's avatar
 
gbazin committed
278 279 280 281 282 283 284 285
        {
            p_aout->output.output.i_physical_channels = AOUT_CHAN_CENTER;
        }
        else
        {
            p_aout->output.output.i_physical_channels
                = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
        }
286

gbazin's avatar
 
gbazin committed
287 288 289
        if( CreateDSBufferPCM( p_aout, &p_aout->output.output.i_format,
                               p_aout->output.output.i_physical_channels,
                               aout_FormatNbChannels( &p_aout->output.output ),
290
                               p_aout->output.output.i_rate, false )
gbazin's avatar
 
gbazin committed
291
            != VLC_SUCCESS )
gbazin's avatar
 
gbazin committed
292
        {
gbazin's avatar
 
gbazin committed
293
            msg_Err( p_aout, "cannot open directx audio device" );
gbazin's avatar
 
gbazin committed
294 295
            free( p_aout->output.p_sys );
            return VLC_EGENERIC;
gbazin's avatar
 
gbazin committed
296
        }
gbazin's avatar
 
gbazin committed
297 298 299 300 301

        /* Calculate the frame size in bytes */
        p_aout->output.i_nb_samples = FRAME_SIZE;
        aout_FormatPrepare( &p_aout->output.output );
        aout_VolumeSoftInit( p_aout );
gbazin's avatar
 
gbazin committed
302
    }
303

304 305 306 307 308 309 310 311 312
    /* Now we need to setup our DirectSound play notification structure */
    p_aout->output.p_sys->p_notif =
        vlc_object_create( p_aout, sizeof(notification_thread_t) );
    p_aout->output.p_sys->p_notif->p_aout = p_aout;

    p_aout->output.p_sys->p_notif->event = CreateEvent( 0, FALSE, FALSE, 0 );
    p_aout->output.p_sys->p_notif->i_frame_size =
        p_aout->output.p_sys->i_frame_size;

Christophe Massiot's avatar
Christophe Massiot committed
313 314 315 316
    /* then launch the notification thread */
    msg_Dbg( p_aout, "creating DirectSoundThread" );
    if( vlc_thread_create( p_aout->output.p_sys->p_notif,
                           "DirectSound Notification Thread",
gbazin's avatar
 
gbazin committed
317
                           DirectSoundThread,
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
318
                           VLC_THREAD_PRIORITY_HIGHEST ) )
Christophe Massiot's avatar
Christophe Massiot committed
319 320
    {
        msg_Err( p_aout, "cannot create DirectSoundThread" );
321
        CloseHandle( p_aout->output.p_sys->p_notif->event );
322
        vlc_object_release( p_aout->output.p_sys->p_notif );
323
        p_aout->output.p_sys->p_notif = NULL;
Christophe Massiot's avatar
Christophe Massiot committed
324 325 326 327 328
        goto error;
    }

    vlc_object_attach( p_aout->output.p_sys->p_notif, p_aout );

gbazin's avatar
 
gbazin committed
329
    return VLC_SUCCESS;
Christophe Massiot's avatar
Christophe Massiot committed
330 331

 error:
gbazin's avatar
 
gbazin committed
332
    CloseAudio( VLC_OBJECT(p_aout) );
333
    return VLC_EGENERIC;
gbazin's avatar
 
gbazin committed
334 335
}

gbazin's avatar
 
gbazin committed
336 337 338 339 340
/*****************************************************************************
 * Probe: probe the audio device for available formats and channels
 *****************************************************************************/
static void Probe( aout_instance_t * p_aout )
{
gbazin's avatar
 
gbazin committed
341
    vlc_value_t val, text;
342
    vlc_fourcc_t i_format;
gbazin's avatar
 
gbazin committed
343 344
    unsigned int i_physical_channels;
    DWORD ui_speaker_config;
345
    bool is_default_output_set = false;
gbazin's avatar
 
gbazin committed
346

gbazin's avatar
 
gbazin committed
347
    var_Create( p_aout, "audio-device", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
348
    text.psz_string = _("Audio Device");
gbazin's avatar
 
gbazin committed
349
    var_Change( p_aout, "audio-device", VLC_VAR_SETTEXT, &text, NULL );
gbazin's avatar
 
gbazin committed
350 351 352 353 354 355 356 357

    /* Test for 5.1 support */
    i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
                          AOUT_CHAN_CENTER | AOUT_CHAN_REARLEFT |
                          AOUT_CHAN_REARRIGHT | AOUT_CHAN_LFE;
    if( p_aout->output.output.i_physical_channels == i_physical_channels )
    {
        if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 6,
358
                               p_aout->output.output.i_rate, true )
gbazin's avatar
 
gbazin committed
359 360
            == VLC_SUCCESS )
        {
gbazin's avatar
 
gbazin committed
361
            val.i_int = AOUT_VAR_5_1;
362
            text.psz_string = (char*) "5.1";
gbazin's avatar
 
gbazin committed
363 364
            var_Change( p_aout, "audio-device",
                        VLC_VAR_ADDCHOICE, &val, &text );
365 366
            var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
            is_default_output_set = true;
gbazin's avatar
 
gbazin committed
367 368 369 370
            msg_Dbg( p_aout, "device supports 5.1 channels" );
        }
    }

371 372 373 374 375
    /* Test for 7.1 support */
    i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
                             AOUT_CHAN_CENTER | AOUT_CHAN_REARLEFT |
                             AOUT_CHAN_MIDDLELEFT | AOUT_CHAN_MIDDLERIGHT |
                             AOUT_CHAN_REARRIGHT | AOUT_CHAN_LFE;
ivoire's avatar
ivoire committed
376 377 378
    if( p_aout->output.output.i_physical_channels == i_physical_channels )
    {
        if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 8,
379
                                  p_aout->output.output.i_rate, true )
ivoire's avatar
ivoire committed
380 381 382 383 384 385 386 387 388 389 390
            == VLC_SUCCESS )
        {
            val.i_int = AOUT_VAR_7_1;
            text.psz_string = (char*) "7.1";
            var_Change( p_aout, "audio-device",
                        VLC_VAR_ADDCHOICE, &val, &text );
            var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
            is_default_output_set = true;
            msg_Dbg( p_aout, "device supports 7.1 channels" );
        }
    }
391

392 393 394 395 396 397 398
    /* Test for 3 Front 2 Rear support */
    i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
                          AOUT_CHAN_CENTER | AOUT_CHAN_REARLEFT |
                          AOUT_CHAN_REARRIGHT;
    if( p_aout->output.output.i_physical_channels == i_physical_channels )
    {
        if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 5,
399
                               p_aout->output.output.i_rate, true )
400 401 402
            == VLC_SUCCESS )
        {
            val.i_int = AOUT_VAR_3F2R;
403
            text.psz_string = _("3 Front 2 Rear");
404 405
            var_Change( p_aout, "audio-device",
                        VLC_VAR_ADDCHOICE, &val, &text );
406 407 408 409 410
            if(!is_default_output_set)
            {
                var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
                is_default_output_set = true;
            }
411 412 413 414
            msg_Dbg( p_aout, "device supports 5 channels" );
        }
    }

gbazin's avatar
 
gbazin committed
415 416 417 418 419 420 421
    /* Test for 2 Front 2 Rear support */
    i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT |
                          AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
    if( ( p_aout->output.output.i_physical_channels & i_physical_channels )
        == i_physical_channels )
    {
        if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 4,
422
                               p_aout->output.output.i_rate, true )
gbazin's avatar
 
gbazin committed
423 424
            == VLC_SUCCESS )
        {
gbazin's avatar
 
gbazin committed
425
            val.i_int = AOUT_VAR_2F2R;
426
            text.psz_string = _("2 Front 2 Rear");
gbazin's avatar
 
gbazin committed
427 428
            var_Change( p_aout, "audio-device",
                        VLC_VAR_ADDCHOICE, &val, &text );
429 430 431 432 433
            if(!is_default_output_set)
            {
                var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
                is_default_output_set = true;
            }
gbazin's avatar
 
gbazin committed
434 435 436 437 438 439 440
            msg_Dbg( p_aout, "device supports 4 channels" );
        }
    }

    /* Test for stereo support */
    i_physical_channels = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
    if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 2,
441
                           p_aout->output.output.i_rate, true )
gbazin's avatar
 
gbazin committed
442 443
        == VLC_SUCCESS )
    {
gbazin's avatar
 
gbazin committed
444
        val.i_int = AOUT_VAR_STEREO;
445
        text.psz_string = _("Stereo");
gbazin's avatar
 
gbazin committed
446
        var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
447 448 449 450 451 452
        if(!is_default_output_set)
        {
            var_Change( p_aout, "audio-device", VLC_VAR_SETDEFAULT, &val, NULL );
            is_default_output_set = true;
            msg_Dbg( p_aout, "device supports 2 channels (DEFAULT!)" );
        }
453
        else msg_Dbg( p_aout, "device supports 2 channels" );
gbazin's avatar
 
gbazin committed
454 455 456 457 458
    }

    /* Test for mono support */
    i_physical_channels = AOUT_CHAN_CENTER;
    if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 1,
459
                           p_aout->output.output.i_rate, true )
gbazin's avatar
 
gbazin committed
460 461
        == VLC_SUCCESS )
    {
gbazin's avatar
 
gbazin committed
462
        val.i_int = AOUT_VAR_MONO;
463
        text.psz_string = _("Mono");
gbazin's avatar
 
gbazin committed
464
        var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val, &text );
gbazin's avatar
 
gbazin committed
465 466 467 468 469 470 471 472 473
        msg_Dbg( p_aout, "device supports 1 channel" );
    }

    /* Check the speaker configuration to determine which channel config should
     * be the default */
    if FAILED( IDirectSound_GetSpeakerConfig( p_aout->output.p_sys->p_dsobject,
                                              &ui_speaker_config ) )
    {
        ui_speaker_config = DSSPEAKER_STEREO;
474
        msg_Dbg( p_aout, "GetSpeakerConfig failed" );
gbazin's avatar
 
gbazin committed
475 476 477
    }
    switch( DSSPEAKER_CONFIG(ui_speaker_config) )
    {
478
    case DSSPEAKER_7POINT1:
479
        msg_Dbg( p_aout, "Windows says your SpeakerConfig is 7.1" );
480 481
        val.i_int = AOUT_VAR_7_1;
        break;
gbazin's avatar
 
gbazin committed
482
    case DSSPEAKER_5POINT1:
483
        msg_Dbg( p_aout, "Windows says your SpeakerConfig is 5.1" );
gbazin's avatar
 
gbazin committed
484
        val.i_int = AOUT_VAR_5_1;
gbazin's avatar
 
gbazin committed
485 486
        break;
    case DSSPEAKER_QUAD:
487
        msg_Dbg( p_aout, "Windows says your SpeakerConfig is Quad" );
gbazin's avatar
 
gbazin committed
488
        val.i_int = AOUT_VAR_2F2R;
gbazin's avatar
 
gbazin committed
489
        break;
gbazin's avatar
 
gbazin committed
490 491
#if 0 /* Lots of people just get their settings wrong and complain that
       * this is a problem with VLC so just don't ever set mono by default. */
gbazin's avatar
 
gbazin committed
492
    case DSSPEAKER_MONO:
gbazin's avatar
 
gbazin committed
493
        val.i_int = AOUT_VAR_MONO;
gbazin's avatar
 
gbazin committed
494
        break;
gbazin's avatar
 
gbazin committed
495
#endif
gbazin's avatar
 
gbazin committed
496
    case DSSPEAKER_SURROUND:
497
        msg_Dbg( p_aout, "Windows says your SpeakerConfig is surround" );
gbazin's avatar
 
gbazin committed
498
    case DSSPEAKER_STEREO:
499
        msg_Dbg( p_aout, "Windows says your SpeakerConfig is stereo" );
gbazin's avatar
 
gbazin committed
500
    default:
501
        /* If nothing else is found, choose stereo output */
gbazin's avatar
 
gbazin committed
502
        val.i_int = AOUT_VAR_STEREO;
gbazin's avatar
 
gbazin committed
503 504
        break;
    }
505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535

    /* Check if we want to override speaker config */
    switch( p_aout->output.p_sys->i_speaker_setup )
    {
    case 0: /* Default value aka Windows default speaker setup */
        break;
    case 1: /* Mono */
        msg_Dbg( p_aout, "SpeakerConfig is forced to Mono" );
        val.i_int = AOUT_VAR_MONO;
        break;
    case 2: /* Stereo */
        msg_Dbg( p_aout, "SpeakerConfig is forced to Stereo" );
        val.i_int = AOUT_VAR_STEREO;
        break;
    case 3: /* Quad */
        msg_Dbg( p_aout, "SpeakerConfig is forced to Quad" );
        val.i_int = AOUT_VAR_2F2R;
        break;
    case 4: /* 5.1 */
        msg_Dbg( p_aout, "SpeakerConfig is forced to 5.1" );
        val.i_int = AOUT_VAR_5_1;
        break;
    case 5: /* 7.1 */
        msg_Dbg( p_aout, "SpeakerConfig is forced to 7.1" );
        val.i_int = AOUT_VAR_7_1;
        break;
    default:
        msg_Dbg( p_aout, "SpeakerConfig is forced to non-existing value" );
        break;
    }

gbazin's avatar
 
gbazin committed
536 537
    var_Set( p_aout, "audio-device", val );

gbazin's avatar
 
gbazin committed
538 539 540
    /* Test for SPDIF support */
    if ( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) )
    {
541
        if( CreateDSBuffer( p_aout, VLC_CODEC_SPDIFL,
gbazin's avatar
 
gbazin committed
542 543 544
                            p_aout->output.output.i_physical_channels,
                            aout_FormatNbChannels( &p_aout->output.output ),
                            p_aout->output.output.i_rate,
545
                            AOUT_SPDIF_SIZE, true )
gbazin's avatar
 
gbazin committed
546 547 548
            == VLC_SUCCESS )
        {
            msg_Dbg( p_aout, "device supports A/52 over S/PDIF" );
gbazin's avatar
 
gbazin committed
549
            val.i_int = AOUT_VAR_SPDIF;
550
            text.psz_string = _("A/52 over S/PDIF");
gbazin's avatar
 
gbazin committed
551 552
            var_Change( p_aout, "audio-device",
                        VLC_VAR_ADDCHOICE, &val, &text );
gbazin's avatar
 
gbazin committed
553 554 555 556 557
            if( config_GetInt( p_aout, "spdif" ) )
                var_Set( p_aout, "audio-device", val );
        }
    }

gbazin's avatar
 
gbazin committed
558 559 560 561 562 563 564 565
    var_Change( p_aout, "audio-device", VLC_VAR_CHOICESCOUNT, &val, NULL );
    if( val.i_int <= 0 )
    {
        /* Probe() has failed. */
        var_Destroy( p_aout, "audio-device" );
        return;
    }

gbazin's avatar
 
gbazin committed
566
    var_AddCallback( p_aout, "audio-device", aout_ChannelsRestart, NULL );
567
    var_SetBool( p_aout, "intf-change", true );
gbazin's avatar
 
gbazin committed
568 569
}

gbazin's avatar
 
gbazin committed
570
/*****************************************************************************
gbazin's avatar
 
gbazin committed
571 572 573
 * Play: we'll start playing the directsound buffer here because at least here
 *       we know the first buffer has been put in the aout fifo and we also
 *       know its date.
gbazin's avatar
 
gbazin committed
574
 *****************************************************************************/
575
static void Play( aout_instance_t *p_aout )
gbazin's avatar
 
gbazin committed
576
{
gbazin's avatar
 
gbazin committed
577 578 579
    if( !p_aout->output.p_sys->b_playing )
    {
        aout_buffer_t *p_buffer;
580
        int i;
gbazin's avatar
 
gbazin committed
581 582 583 584 585 586 587 588

        p_aout->output.p_sys->b_playing = 1;

        /* get the playing date of the first aout buffer */
        p_aout->output.p_sys->p_notif->start_date =
            aout_FifoFirstDate( p_aout, &p_aout->output.fifo );

        /* fill in the first samples */
589 590 591 592 593 594
        for( i = 0; i < FRAMES_NUM; i++ )
        {
            p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
            if( !p_buffer ) break;
            FillBuffer( p_aout, i, p_buffer );
        }
gbazin's avatar
 
gbazin committed
595 596

        /* wake up the audio output thread */
597
        SetEvent( p_aout->output.p_sys->p_notif->event );
gbazin's avatar
 
gbazin committed
598
    }
599 600 601 602 603
}

/*****************************************************************************
 * CloseAudio: close the audio device
 *****************************************************************************/
gbazin's avatar
 
gbazin committed
604
static void CloseAudio( vlc_object_t *p_this )
605
{
gbazin's avatar
 
gbazin committed
606
    aout_instance_t * p_aout = (aout_instance_t *)p_this;
607
    aout_sys_t *p_sys = p_aout->output.p_sys;
608

609
    msg_Dbg( p_aout, "closing audio device" );
610 611

    /* kill the position notification thread, if any */
612
    if( p_sys->p_notif )
613
    {
614
        vlc_object_detach( p_sys->p_notif );
615 616 617
        vlc_object_kill( p_sys->p_notif );
        /* wake up the audio thread if needed */
        if( !p_sys->b_playing ) SetEvent( p_sys->p_notif->event );
gbazin's avatar
 
gbazin committed
618

619
        vlc_thread_join( p_sys->p_notif );
620
        vlc_object_release( p_sys->p_notif );
621 622 623
    }

    /* release the secondary buffer */
gbazin's avatar
 
gbazin committed
624
    DestroyDSBuffer( p_aout );
625 626

    /* finally release the DirectSound object */
627
    if( p_sys->p_dsobject ) IDirectSound_Release( p_sys->p_dsobject );
628

629
    /* free DSOUND.DLL */
630
    if( p_sys->hdsound_dll ) FreeLibrary( p_sys->hdsound_dll );
gbazin's avatar
 
gbazin committed
631

632
    free( p_aout->output.p_sys->p_device_guid );
633
    free( p_sys );
634 635
}

636 637 638 639 640 641
/*****************************************************************************
 * CallBackDirectSoundEnum: callback to enumerate available devices
 *****************************************************************************/
static int CALLBACK CallBackDirectSoundEnum( LPGUID p_guid, LPCSTR psz_desc,
                                             LPCSTR psz_mod, LPVOID _p_aout )
{
642 643
    VLC_UNUSED( psz_mod );

644 645 646 647
    aout_instance_t *p_aout = (aout_instance_t *)_p_aout;

    msg_Dbg( p_aout, "found device: %s", psz_desc );

648
    if( p_aout->output.p_sys->psz_device && !strcmp(p_aout->output.p_sys->psz_device, psz_desc) && p_guid )
649
    {
650
        /* Use the device corresponding to psz_device */
651 652 653 654
        p_aout->output.p_sys->p_device_guid = malloc( sizeof( GUID ) );
        *p_aout->output.p_sys->p_device_guid = *p_guid;
        msg_Dbg( p_aout, "using device: %s", psz_desc );
    }
655 656 657 658 659 660 661 662 663 664 665
    else
    {
        /* If no default device has been selected, chose the first one */
        if( !p_aout->output.p_sys->psz_device && p_guid )
        {
            p_aout->output.p_sys->psz_device = strdup( psz_desc );
            p_aout->output.p_sys->p_device_guid = malloc( sizeof( GUID ) );
            *p_aout->output.p_sys->p_device_guid = *p_guid;
            msg_Dbg( p_aout, "using device: %s", psz_desc );
        }
    }
666 667 668
    return 1;
}

669
/*****************************************************************************
gbazin's avatar
 
gbazin committed
670
 * InitDirectSound: handle all the gory details of DirectSound initialisation
671
 *****************************************************************************/
gbazin's avatar
 
gbazin committed
672
static int InitDirectSound( aout_instance_t *p_aout )
673 674
{
    HRESULT (WINAPI *OurDirectSoundCreate)(LPGUID, LPDIRECTSOUND *, LPUNKNOWN);
675
    HRESULT (WINAPI *OurDirectSoundEnumerate)(LPDSENUMCALLBACK, LPVOID);
676

gbazin's avatar
 
gbazin committed
677 678
    p_aout->output.p_sys->hdsound_dll = LoadLibrary("DSOUND.DLL");
    if( p_aout->output.p_sys->hdsound_dll == NULL )
679
    {
gbazin's avatar
 
gbazin committed
680 681
        msg_Warn( p_aout, "cannot open DSOUND.DLL" );
        goto error;
682 683
    }

684 685 686
    OurDirectSoundCreate = (void *)
        GetProcAddress( p_aout->output.p_sys->hdsound_dll,
                        "DirectSoundCreate" );
687 688
    if( OurDirectSoundCreate == NULL )
    {
gbazin's avatar
 
gbazin committed
689 690
        msg_Warn( p_aout, "GetProcAddress FAILED" );
        goto error;
691 692
    }

693 694 695 696 697 698
    /* Get DirectSoundEnumerate */
    OurDirectSoundEnumerate = (void *)
       GetProcAddress( p_aout->output.p_sys->hdsound_dll,
                       "DirectSoundEnumerateA" );
    if( OurDirectSoundEnumerate )
    {
699
        p_aout->output.p_sys->psz_device = config_GetPsz(p_aout, "directx-audio-device-name");
700
        /* Attempt enumeration */
701
        if( FAILED( OurDirectSoundEnumerate( CallBackDirectSoundEnum,
702 703 704 705 706 707
                                             p_aout ) ) )
        {
            msg_Dbg( p_aout, "enumeration of DirectSound devices failed" );
        }
    }

708
    /* Create the direct sound object */
709
    if FAILED( OurDirectSoundCreate( p_aout->output.p_sys->p_device_guid,
710
                                     &p_aout->output.p_sys->p_dsobject,
gbazin's avatar
 
gbazin committed
711
                                     NULL ) )
712 713
    {
        msg_Warn( p_aout, "cannot create a direct sound device" );
gbazin's avatar
 
gbazin committed
714
        goto error;
715 716 717 718 719 720 721 722 723 724 725 726
    }

    /* Set DirectSound Cooperative level, ie what control we want over Windows
     * sound device. In our case, DSSCL_EXCLUSIVE means that we can modify the
     * settings of the primary buffer, but also that only the sound of our
     * application will be hearable when it will have the focus.
     * !!! (this is not really working as intended yet because to set the
     * cooperative level you need the window handle of your application, and
     * I don't know of any easy way to get it. Especially since we might play
     * sound without any video, and so what window handle should we use ???
     * The hack for now is to use the Desktop window handle - it seems to be
     * working */
gbazin's avatar
 
gbazin committed
727 728 729
    if( IDirectSound_SetCooperativeLevel( p_aout->output.p_sys->p_dsobject,
                                          GetDesktopWindow(),
                                          DSSCL_EXCLUSIVE) )
730 731 732 733
    {
        msg_Warn( p_aout, "cannot set direct sound cooperative level" );
    }

gbazin's avatar
 
gbazin committed
734
    return VLC_SUCCESS;
gbazin's avatar
 
gbazin committed
735 736 737 738 739 740 741 742

 error:
    p_aout->output.p_sys->p_dsobject = NULL;
    if( p_aout->output.p_sys->hdsound_dll )
    {
        FreeLibrary( p_aout->output.p_sys->hdsound_dll );
        p_aout->output.p_sys->hdsound_dll = NULL;
    }
gbazin's avatar
 
gbazin committed
743
    return VLC_EGENERIC;
gbazin's avatar
 
gbazin committed
744

745 746 747
}

/*****************************************************************************
gbazin's avatar
 
gbazin committed
748
 * CreateDSBuffer: Creates a direct sound buffer of the required format.
749 750 751 752 753 754 755 756
 *****************************************************************************
 * This function creates the buffer we'll use to play audio.
 * In DirectSound there are two kinds of buffers:
 * - the primary buffer: which is the actual buffer that the soundcard plays
 * - the secondary buffer(s): these buffers are the one actually used by
 *    applications and DirectSound takes care of mixing them into the primary.
 *
 * Once you create a secondary buffer, you cannot change its format anymore so
gbazin's avatar
 
gbazin committed
757
 * you have to release the current one and create another.
758
 *****************************************************************************/
gbazin's avatar
 
gbazin committed
759 760
static int CreateDSBuffer( aout_instance_t *p_aout, int i_format,
                           int i_channels, int i_nb_channels, int i_rate,
761
                           int i_bytes_per_frame, bool b_probe )
762
{
gbazin's avatar
 
gbazin committed
763
    WAVEFORMATEXTENSIBLE waveformat;
764
    DSBUFFERDESC         dsbdesc;
gbazin's avatar
 
gbazin committed
765
    unsigned int         i;
766

gbazin's avatar
 
gbazin committed
767 768
    /* First set the sound buffer format */
    waveformat.dwChannelMask = 0;
769
    for( i = 0; i < sizeof(pi_channels_src)/sizeof(uint32_t); i++ )
gbazin's avatar
 
gbazin committed
770
    {
771 772
        if( i_channels & pi_channels_src[i] )
            waveformat.dwChannelMask |= pi_channels_in[i];
773
    }
gbazin's avatar
 
gbazin committed
774

gbazin's avatar
 
gbazin committed
775
    switch( i_format )
gbazin's avatar
 
gbazin committed
776
    {
777
    case VLC_CODEC_SPDIFL:
gbazin's avatar
 
gbazin committed
778
        i_nb_channels = 2;
gbazin's avatar
 
gbazin committed
779 780
        /* To prevent channel re-ordering */
        waveformat.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT;
gbazin's avatar
 
gbazin committed
781 782 783 784
        waveformat.Format.wBitsPerSample = 16;
        waveformat.Samples.wValidBitsPerSample =
            waveformat.Format.wBitsPerSample;
        waveformat.Format.wFormatTag = WAVE_FORMAT_DOLBY_AC3_SPDIF;
gbazin's avatar
 
gbazin committed
785
        waveformat.SubFormat = _KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF;
gbazin's avatar
 
gbazin committed
786
        break;
gbazin's avatar
 
gbazin committed
787

788
    case VLC_CODEC_FL32:
gbazin's avatar
 
gbazin committed
789 790 791 792
        waveformat.Format.wBitsPerSample = sizeof(float) * 8;
        waveformat.Samples.wValidBitsPerSample =
            waveformat.Format.wBitsPerSample;
        waveformat.Format.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
gbazin's avatar
 
gbazin committed
793
        waveformat.SubFormat = _KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
gbazin's avatar
 
gbazin committed
794 795
        break;

796
    case VLC_CODEC_S16L:
gbazin's avatar
 
gbazin committed
797 798 799 800
        waveformat.Format.wBitsPerSample = 16;
        waveformat.Samples.wValidBitsPerSample =
            waveformat.Format.wBitsPerSample;
        waveformat.Format.wFormatTag = WAVE_FORMAT_PCM;
gbazin's avatar
 
gbazin committed
801
        waveformat.SubFormat = _KSDATAFORMAT_SUBTYPE_PCM;
gbazin's avatar
 
gbazin committed
802 803
        break;
    }
804

gbazin's avatar
 
gbazin committed
805 806 807 808 809 810 811
    waveformat.Format.nChannels = i_nb_channels;
    waveformat.Format.nSamplesPerSec = i_rate;
    waveformat.Format.nBlockAlign =
        waveformat.Format.wBitsPerSample / 8 * i_nb_channels;
    waveformat.Format.nAvgBytesPerSec =
        waveformat.Format.nSamplesPerSec * waveformat.Format.nBlockAlign;

812 813 814
    p_aout->output.p_sys->i_bits_per_sample = waveformat.Format.wBitsPerSample;
    p_aout->output.p_sys->i_channels = i_nb_channels;

815 816 817 818 819 820
    /* Then fill in the direct sound descriptor */
    memset(&dsbdesc, 0, sizeof(DSBUFFERDESC));
    dsbdesc.dwSize = sizeof(DSBUFFERDESC);
    dsbdesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2/* Better position accuracy */
                    | DSBCAPS_GLOBALFOCUS;      /* Allows background playing */

gbazin's avatar
 
gbazin committed
821 822 823 824 825 826 827 828 829 830
    /* Only use the new WAVE_FORMAT_EXTENSIBLE format for multichannel audio */
    if( i_nb_channels <= 2 )
    {
        waveformat.Format.cbSize = 0;
    }
    else
    {
        waveformat.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE;
        waveformat.Format.cbSize =
            sizeof(WAVEFORMATEXTENSIBLE) - sizeof(WAVEFORMATEX);
gbazin's avatar
 
gbazin committed
831

832 833 834
        /* Needed for 5.1 on emu101k */
        dsbdesc.dwFlags |= DSBCAPS_LOCHARDWARE;
    }
gbazin's avatar
 
gbazin committed
835 836 837 838 839 840 841 842

    dsbdesc.dwBufferBytes = FRAMES_NUM * i_bytes_per_frame;   /* buffer size */
    dsbdesc.lpwfxFormat = (WAVEFORMATEX *)&waveformat;

    if FAILED( IDirectSound_CreateSoundBuffer(
                   p_aout->output.p_sys->p_dsobject, &dsbdesc,
                   &p_aout->output.p_sys->p_dsbuffer, NULL) )
    {
843 844 845 846 847
        if( dsbdesc.dwFlags & DSBCAPS_LOCHARDWARE )
        {
            /* Try without DSBCAPS_LOCHARDWARE */
            dsbdesc.dwFlags &= ~DSBCAPS_LOCHARDWARE;
            if FAILED( IDirectSound_CreateSoundBuffer(
gbazin's avatar
 
gbazin committed
848 849
                   p_aout->output.p_sys->p_dsobject, &dsbdesc,
                   &p_aout->output.p_sys->p_dsbuffer, NULL) )
850 851 852 853 854 855 856
            {
                return VLC_EGENERIC;
            }
            if( !b_probe )
                msg_Dbg( p_aout, "couldn't use hardware sound buffer" );
        }
        else
gbazin's avatar
 
gbazin committed
857 858 859
        {
            return VLC_EGENERIC;
        }
860 861
    }

gbazin's avatar
 
gbazin committed
862 863 864 865 866 867 868
    /* Stop here if we were just probing */
    if( b_probe )
    {
        IDirectSoundBuffer_Release( p_aout->output.p_sys->p_dsbuffer );
        p_aout->output.p_sys->p_dsbuffer = NULL;
        return VLC_SUCCESS;
    }
gbazin's avatar
 
gbazin committed
869

870
    p_aout->output.p_sys->i_frame_size = i_bytes_per_frame;
gbazin's avatar
 
gbazin committed
871
    p_aout->output.p_sys->i_channel_mask = waveformat.dwChannelMask;
872 873 874 875 876 877 878 879 880
    p_aout->output.p_sys->b_chan_reorder =
        aout_CheckChannelReorder( pi_channels_in, pi_channels_out,
                                  waveformat.dwChannelMask, i_nb_channels,
                                  p_aout->output.p_sys->pi_chan_table );

    if( p_aout->output.p_sys->b_chan_reorder )
    {
        msg_Dbg( p_aout, "channel reordering needed" );
    }
gbazin's avatar
 
gbazin committed
881

gbazin's avatar
 
gbazin committed
882
    return VLC_SUCCESS;
883 884 885
}

/*****************************************************************************
gbazin's avatar
 
gbazin committed
886 887 888