* directx.c: Windows DirectX audio output method
*****************************************************************************
* Copyright (C) 2001 VideoLAN
- * $Id: directx.c,v 1.11 2003/02/14 17:00:02 ipkiss Exp $
+ * $Id: directx.c,v 1.12 2003/02/17 22:19:24 gbazin Exp $
*
* Authors: Gildas Bazin <gbazin@netcourrier.com>
*
# define WAVE_FORMAT_IEEE_FLOAT 0x0003
#endif
+#ifndef WAVE_FORMAT_DOLBY_AC3_SPDIF
+# define WAVE_FORMAT_DOLBY_AC3_SPDIF 0x0092
+#endif
+
+#ifndef WAVE_FORMAT_EXTENSIBLE
+#define WAVE_FORMAT_EXTENSIBLE 0xFFFE
+#endif
+
+#ifndef SPEAKER_FRONT_LEFT
+# define SPEAKER_FRONT_LEFT 0x1
+# define SPEAKER_FRONT_RIGHT 0x2
+# define SPEAKER_FRONT_CENTER 0x4
+# define SPEAKER_LOW_FREQUENCY 0x8
+# define SPEAKER_BACK_LEFT 0x10
+# define SPEAKER_BACK_RIGHT 0x20
+# define SPEAKER_FRONT_LEFT_OF_CENTER 0x40
+# define SPEAKER_FRONT_RIGHT_OF_CENTER 0x80
+# define SPEAKER_BACK_CENTER 0x100
+# define SPEAKER_SIDE_LEFT 0x200
+# define SPEAKER_SIDE_RIGHT 0x400
+# define SPEAKER_TOP_CENTER 0x800
+# define SPEAKER_TOP_FRONT_LEFT 0x1000
+# define SPEAKER_TOP_FRONT_CENTER 0x2000
+# define SPEAKER_TOP_FRONT_RIGHT 0x4000
+# define SPEAKER_TOP_BACK_LEFT 0x8000
+# define SPEAKER_TOP_BACK_CENTER 0x10000
+# define SPEAKER_TOP_BACK_RIGHT 0x20000
+# define SPEAKER_RESERVED 0x80000000
+#endif
+
+#ifndef _WAVEFORMATEXTENSIBLE_
+typedef struct {
+ WAVEFORMATEX Format;
+ union {
+ WORD wValidBitsPerSample; /* bits of precision */
+ WORD wSamplesPerBlock; /* valid if wBitsPerSample==0 */
+ WORD wReserved; /* If neither applies, set to zero. */
+ } Samples;
+ DWORD dwChannelMask; /* which channels are */
+ /* present in stream */
+ GUID SubFormat;
+} WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE;
+#endif
+
+#ifndef KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
+DEFINE_GUID( KSDATAFORMAT_SUBTYPE_IEEE_FLOAT, WAVE_FORMAT_IEEE_FLOAT, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
+#endif
+#ifndef KSDATAFORMAT_SUBTYPE_PCM
+DEFINE_GUID( KSDATAFORMAT_SUBTYPE_PCM, WAVE_FORMAT_PCM, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
+#endif
+#ifndef KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF
+DEFINE_GUID( KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF, WAVE_FORMAT_DOLBY_AC3_SPDIF, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 );
+#endif
+
/*****************************************************************************
* notification_thread_t: DirectX event thread
*****************************************************************************/
*****************************************************************************/
struct aout_sys_t
{
+ HINSTANCE hdsound_dll; /* handle of the opened dsound dll */
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) */
LPDIRECTSOUNDNOTIFY p_dsnotify; /* the position notify interface */
+ notification_thread_t *p_notif; /* DirectSoundThread id */
- HINSTANCE hdsound_dll; /* handle of the opened dsound dll */
+ int b_playing; /* playing status */
- notification_thread_t * p_notif; /* DirectSoundThread id */
+ int i_frame_size; /* Size in bytes of one frame */
- int b_playing; /* playing status */
+ vlc_bool_t b_chan_reorder; /* do we need channel reordering */
+ int *pi_chan_table;
+ uint32_t i_channel_mask;
};
+static const uint32_t pi_channels_in[] =
+ { AOUT_CHAN_LEFT, AOUT_CHAN_RIGHT,
+ AOUT_CHAN_REARLEFT, AOUT_CHAN_REARRIGHT,
+ AOUT_CHAN_CENTER, AOUT_CHAN_LFE };
+static const uint32_t pi_channels_out[] =
+ { SPEAKER_FRONT_LEFT, SPEAKER_FRONT_RIGHT,
+ SPEAKER_BACK_LEFT, SPEAKER_BACK_RIGHT,
+ SPEAKER_FRONT_CENTER, SPEAKER_LOW_FREQUENCY };
+static const uint32_t pi_channels_ordered[] =
+ { SPEAKER_FRONT_LEFT, SPEAKER_FRONT_RIGHT, SPEAKER_FRONT_CENTER,
+ SPEAKER_LOW_FREQUENCY,
+ SPEAKER_BACK_LEFT, SPEAKER_BACK_RIGHT };
+
/*****************************************************************************
* Local prototypes.
*****************************************************************************/
static int OpenAudio ( vlc_object_t * );
static void CloseAudio ( vlc_object_t * );
-
static void Play ( aout_instance_t * );
/* local functions */
-static int DirectxCreateSecondaryBuffer ( aout_instance_t * );
-static void DirectxDestroySecondaryBuffer( aout_instance_t * );
-static int DirectxInitDSound ( aout_instance_t * );
-static void DirectSoundThread ( notification_thread_t * );
-static int DirectxFillBuffer ( aout_instance_t *, int,
- aout_buffer_t * );
+static void Probe ( aout_instance_t * );
+static int InitDirectSound ( aout_instance_t * );
+static int CreateDSBuffer ( aout_instance_t *, int, int, int, int, int, vlc_bool_t );
+static int CreateDSBufferPCM ( aout_instance_t *, int*, int, int, int, vlc_bool_t );
+static void DestroyDSBuffer ( aout_instance_t * );
+static void DirectSoundThread ( notification_thread_t * );
+static int FillBuffer ( aout_instance_t *, int, aout_buffer_t * );
+
+static void CheckReordering ( aout_instance_t *, int );
+static void InterleaveFloat32 ( float *, int *, int );
+static void InterleaveS16 ( int16_t *, int *, int );
/*****************************************************************************
* Module descriptor
static int OpenAudio( vlc_object_t *p_this )
{
aout_instance_t * p_aout = (aout_instance_t *)p_this;
+ vlc_value_t val;
int i;
- msg_Dbg( p_aout, "Open" );
+ msg_Dbg( p_aout, "OpenAudio" );
/* Allocate structure */
p_aout->output.p_sys = malloc( sizeof( aout_sys_t ) );
p_aout->output.p_sys->p_dsnotify = NULL;
p_aout->output.p_sys->p_notif = NULL;
p_aout->output.p_sys->b_playing = 0;
+ p_aout->output.p_sys->pi_chan_table = NULL;
p_aout->output.pf_play = Play;
aout_VolumeSoftInit( p_aout );
/* Initialise DirectSound */
- if( DirectxInitDSound( p_aout ) )
+ if( InitDirectSound( p_aout ) )
{
msg_Err( p_aout, "cannot initialize DirectSound" );
goto error;
}
- /* Now we need to setup DirectSound play notification */
+ /* 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;
- /* first we need to create the notification events */
+ if( var_Type( p_aout, "audio-device" ) == 0 )
+ {
+ Probe( p_aout );
+ }
+
+ if( var_Get( p_aout, "audio-device", &val ) < 0 )
+ {
+ /* Probe() has failed. */
+ free( p_aout->output.p_sys );
+ return VLC_EGENERIC;
+ }
+
+ /* Then create the notification events */
for( i = 0; i < FRAMES_NUM; i++ )
p_aout->output.p_sys->p_notif->p_events[i].hEventNotify =
CreateEvent( NULL, FALSE, FALSE, NULL );
- /* then create a new secondary buffer */
- p_aout->output.output.i_format = VLC_FOURCC('f','l','3','2');
- if( DirectxCreateSecondaryBuffer( p_aout ) )
+ /* Open the device */
+ if( !strcmp( val.psz_string, N_("A/52 over S/PDIF") ) )
{
- msg_Dbg( p_aout, "cannot create WAVE_FORMAT_IEEE_FLOAT buffer" );
+ free( val.psz_string );
+ p_aout->output.output.i_format = VLC_FOURCC('s','p','d','i');
+
+ /* 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;
+
+ if( CreateDSBuffer( p_aout, VLC_FOURCC('s','p','d','i'),
+ p_aout->output.output.i_physical_channels,
+ aout_FormatNbChannels( &p_aout->output.output ),
+ p_aout->output.output.i_rate,
+ p_aout->output.p_sys->i_frame_size, VLC_FALSE )
+ != VLC_SUCCESS )
+ {
+ msg_Err( p_aout, "cannot open waveout audio device" );
+ free( p_aout->output.p_sys );
+ return VLC_EGENERIC;
+ }
+
+ aout_VolumeNoneInit( p_aout );
+ }
+ else
+ {
+ if( !strcmp( val.psz_string, N_("5.1") ) )
+ {
+ p_aout->output.output.i_physical_channels
+ = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
+ | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
+ | AOUT_CHAN_LFE;
+ }
+ else if( !strcmp( val.psz_string, N_("2 Front 2 Rear") ) )
+ {
+ p_aout->output.output.i_physical_channels
+ = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
+ | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT;
+ }
+ else if( !strcmp( val.psz_string, "Mono" ) )
+ {
+ p_aout->output.output.i_physical_channels = AOUT_CHAN_CENTER;
+ }
+ else
+ {
+ p_aout->output.output.i_physical_channels
+ = AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
+ }
+ free( val.psz_string );
- p_aout->output.output.i_format = VLC_FOURCC('s','1','6','l');
- if( DirectxCreateSecondaryBuffer( p_aout ) )
+ if( CreateDSBufferPCM( p_aout, &p_aout->output.output.i_format,
+ p_aout->output.output.i_physical_channels,
+ aout_FormatNbChannels( &p_aout->output.output ),
+ p_aout->output.output.i_rate, VLC_FALSE )
+ != VLC_SUCCESS )
{
- msg_Err( p_aout, "cannot create WAVE_FORMAT_PCM buffer" );
- return 1;
+ msg_Err( p_aout, "cannot open waveout audio device" );
+ free( p_aout->output.p_sys );
+ return VLC_EGENERIC;
}
+
+ /* Calculate the frame size in bytes */
+ p_aout->output.i_nb_samples = FRAME_SIZE;
+ aout_FormatPrepare( &p_aout->output.output );
+ p_aout->output.p_sys->i_frame_size =
+ FRAME_SIZE * p_aout->output.output.i_bytes_per_frame;
+
+ aout_VolumeSoftInit( p_aout );
}
/* then launch the notification thread */
if( vlc_thread_create( p_aout->output.p_sys->p_notif,
"DirectSound Notification Thread",
DirectSoundThread,
- VLC_THREAD_PRIORITY_HIGHEST, 1 ) )
+ VLC_THREAD_PRIORITY_HIGHEST, VLC_FALSE ) )
{
msg_Err( p_aout, "cannot create DirectSoundThread" );
goto error;
vlc_object_attach( p_aout->output.p_sys->p_notif, p_aout );
- return 0;
+ return VLC_SUCCESS;
error:
CloseAudio( VLC_OBJECT(p_aout) );
return VLC_EGENERIC;
}
+/*****************************************************************************
+ * Probe: probe the audio device for available formats and channels
+ *****************************************************************************/
+static void Probe( aout_instance_t * p_aout )
+{
+ vlc_value_t val;
+ int i_format;
+ unsigned int i_physical_channels;
+ DWORD ui_speaker_config;
+
+ var_Create( p_aout, "audio-device", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
+
+ /* Test for SPDIF support */
+ if ( AOUT_FMT_NON_LINEAR( &p_aout->output.output ) )
+ {
+ if( CreateDSBuffer( p_aout, VLC_FOURCC('s','p','d','i'),
+ p_aout->output.output.i_physical_channels,
+ aout_FormatNbChannels( &p_aout->output.output ),
+ p_aout->output.output.i_rate,
+ AOUT_SPDIF_SIZE, VLC_TRUE )
+ == VLC_SUCCESS )
+ {
+ msg_Dbg( p_aout, "device supports A/52 over S/PDIF" );
+ val.psz_string = N_("A/52 over S/PDIF");
+ var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val );
+ }
+ }
+
+ /* 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,
+ p_aout->output.output.i_rate, VLC_TRUE )
+ == VLC_SUCCESS )
+ {
+ val.psz_string = N_("5.1");
+ var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val );
+ msg_Dbg( p_aout, "device supports 5.1 channels" );
+ }
+ }
+
+ /* 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,
+ p_aout->output.output.i_rate, VLC_TRUE )
+ == VLC_SUCCESS )
+ {
+ val.psz_string = N_("2 Front 2 Rear");
+ var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val );
+ 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,
+ p_aout->output.output.i_rate, VLC_TRUE )
+ == VLC_SUCCESS )
+ {
+ val.psz_string = N_("Stereo");
+ var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val );
+ msg_Dbg( p_aout, "device supports 2 channels" );
+ }
+
+ /* Test for mono support */
+ i_physical_channels = AOUT_CHAN_CENTER;
+ if( CreateDSBufferPCM( p_aout, &i_format, i_physical_channels, 1,
+ p_aout->output.output.i_rate, VLC_TRUE )
+ == VLC_SUCCESS )
+ {
+ val.psz_string = N_("Mono");
+ var_Change( p_aout, "audio-device", VLC_VAR_ADDCHOICE, &val );
+ 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;
+ }
+ switch( DSSPEAKER_CONFIG(ui_speaker_config) )
+ {
+ case DSSPEAKER_5POINT1:
+ val.psz_string = N_("5.1");
+ break;
+ case DSSPEAKER_QUAD:
+ val.psz_string = N_("2 Front 2 Rear");
+ break;
+ case DSSPEAKER_MONO:
+ val.psz_string = N_("Mono");
+ break;
+ case DSSPEAKER_SURROUND:
+ case DSSPEAKER_STEREO:
+ default:
+ val.psz_string = N_("Stereo");
+ break;
+ }
+ var_Set( p_aout, "audio-device", val );
+
+ var_AddCallback( p_aout, "audio-device", aout_ChannelsRestart, NULL );
+
+ val.b_bool = VLC_TRUE;
+ var_Set( p_aout, "intf-change", val );
+}
+
/*****************************************************************************
* 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
/* fill in the first samples */
p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
- DirectxFillBuffer( p_aout, 0, p_buffer );
+ FillBuffer( p_aout, 0, p_buffer );
/* wake up the audio output thread */
SetEvent( p_aout->output.p_sys->p_notif->p_events[0].hEventNotify );
{
aout_instance_t * p_aout = (aout_instance_t *)p_this;
- msg_Dbg( p_aout, "Close" );
+ msg_Dbg( p_aout, "CloseAudio" );
/* kill the position notification thread, if any */
if( p_aout->output.p_sys->p_notif )
}
/* release the secondary buffer */
- DirectxDestroySecondaryBuffer( p_aout );
+ DestroyDSBuffer( p_aout );
/* finally release the DirectSound object */
if( p_aout->output.p_sys->p_dsobject )
if( p_aout->output.p_sys->hdsound_dll )
FreeLibrary( p_aout->output.p_sys->hdsound_dll );
+ if( p_aout->output.p_sys->pi_chan_table )
+ free( p_aout->output.p_sys->pi_chan_table );
+
free( p_aout->output.p_sys );
}
/*****************************************************************************
- * DirectxInitDSound: handle all the gory details of DirectSound initialisation
+ * InitDirectSound: handle all the gory details of DirectSound initialisation
*****************************************************************************/
-static int DirectxInitDSound( aout_instance_t *p_aout )
+static int InitDirectSound( aout_instance_t *p_aout )
{
HRESULT (WINAPI *OurDirectSoundCreate)(LPGUID, LPDIRECTSOUND *, LPUNKNOWN);
}
/* Create the direct sound object */
- if( OurDirectSoundCreate( NULL, &p_aout->output.p_sys->p_dsobject, NULL )
- != DS_OK )
+ if FAILED( OurDirectSoundCreate( NULL, &p_aout->output.p_sys->p_dsobject,
+ NULL ) )
{
msg_Warn( p_aout, "cannot create a direct sound device" );
goto error;
msg_Warn( p_aout, "cannot set direct sound cooperative level" );
}
- return 0;
+ return VLC_SUCCESS;
error:
p_aout->output.p_sys->p_dsobject = NULL;
FreeLibrary( p_aout->output.p_sys->hdsound_dll );
p_aout->output.p_sys->hdsound_dll = NULL;
}
- return 1;
+ return VLC_EGENERIC;
}
/*****************************************************************************
- * DirectxCreateSecondaryBuffer
+ * CreateDSBuffer: Creates a direct sound buffer of the required format.
*****************************************************************************
* This function creates the buffer we'll use to play audio.
* In DirectSound there are two kinds of buffers:
* applications and DirectSound takes care of mixing them into the primary.
*
* Once you create a secondary buffer, you cannot change its format anymore so
- * you have to release the current and create another one.
+ * you have to release the current one and create another.
*****************************************************************************/
-static int DirectxCreateSecondaryBuffer( aout_instance_t *p_aout )
+static int CreateDSBuffer( aout_instance_t *p_aout, int i_format,
+ int i_channels, int i_nb_channels, int i_rate,
+ int i_bytes_per_frame, vlc_bool_t b_probe )
{
- WAVEFORMATEX waveformat;
+ WAVEFORMATEXTENSIBLE waveformat;
DSBUFFERDESC dsbdesc;
- DSBCAPS dsbcaps;
- int i_nb_channels, i;
+ unsigned int i;
- i_nb_channels = aout_FormatNbChannels( &p_aout->output.output );
- if ( i_nb_channels >= 2 )
- {
- i_nb_channels = 2;
- p_aout->output.output.i_physical_channels =
- AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
- }
- else
+ /* First set the sound buffer format */
+ waveformat.dwChannelMask = 0;
+ for( i = 0; i < sizeof(pi_channels_in)/sizeof(uint32_t); i++ )
{
- i_nb_channels = 1;
- p_aout->output.output.i_physical_channels =
- AOUT_CHAN_CENTER;
+ if( i_channels & pi_channels_in[i] )
+ waveformat.dwChannelMask |= pi_channels_out[i];
}
- /* First set the buffer format */
- memset( &waveformat, 0, sizeof(WAVEFORMATEX) );
- switch( p_aout->output.output.i_format )
+ switch( i_format )
{
- case VLC_FOURCC('s','1','6','l'):
- waveformat.wFormatTag = WAVE_FORMAT_PCM;
- waveformat.wBitsPerSample = 16;
+ case VLC_FOURCC('s','p','d','i'):
+ i_nb_channels = 2;
+ waveformat.Format.wBitsPerSample = 16;
+ waveformat.Samples.wValidBitsPerSample =
+ waveformat.Format.wBitsPerSample;
+ waveformat.Format.wFormatTag = WAVE_FORMAT_DOLBY_AC3_SPDIF;
+ waveformat.SubFormat = KSDATAFORMAT_SUBTYPE_DOLBY_AC3_SPDIF;
break;
+
case VLC_FOURCC('f','l','3','2'):
- waveformat.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
- waveformat.wBitsPerSample = sizeof(float) * 8;
+ waveformat.Format.wBitsPerSample = sizeof(float) * 8;
+ waveformat.Samples.wValidBitsPerSample =
+ waveformat.Format.wBitsPerSample;
+ waveformat.Format.wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
+ waveformat.SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT;
+ break;
+
+ case VLC_FOURCC('s','1','6','l'):
+ waveformat.Format.wBitsPerSample = 16;
+ waveformat.Samples.wValidBitsPerSample =
+ waveformat.Format.wBitsPerSample;
+ waveformat.Format.wFormatTag = WAVE_FORMAT_PCM;
+ waveformat.SubFormat = KSDATAFORMAT_SUBTYPE_PCM;
break;
}
- waveformat.nChannels = i_nb_channels;
- waveformat.nSamplesPerSec = p_aout->output.output.i_rate;
- waveformat.nBlockAlign = waveformat.wBitsPerSample / 8 *
- waveformat.nChannels;
- waveformat.nAvgBytesPerSec = waveformat.nSamplesPerSec *
- waveformat.nBlockAlign;
- aout_FormatPrepare( &p_aout->output.output );
+ 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;
+
+ /* 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);
+ }
- /* Then fill in the descriptor */
+
+ /* Then fill in the direct sound descriptor */
memset(&dsbdesc, 0, sizeof(DSBUFFERDESC));
dsbdesc.dwSize = sizeof(DSBUFFERDESC);
dsbdesc.dwFlags = DSBCAPS_GETCURRENTPOSITION2/* Better position accuracy */
| DSBCAPS_CTRLPOSITIONNOTIFY /* We need notification */
| DSBCAPS_GLOBALFOCUS; /* Allows background playing */
- dsbdesc.dwBufferBytes = FRAME_SIZE * FRAMES_NUM /* buffer size */
- * p_aout->output.output.i_bytes_per_frame;
- dsbdesc.lpwfxFormat = &waveformat;
-
- if( IDirectSound_CreateSoundBuffer( p_aout->output.p_sys->p_dsobject,
- &dsbdesc,
- &p_aout->output.p_sys->p_dsbuffer,
- NULL) != DS_OK )
- {
- msg_Warn( p_aout, "cannot create direct sound secondary buffer" );
+ 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) )
+ {
goto error;
}
- /* backup the size of a frame */
- p_aout->output.p_sys->p_notif->i_frame_size = FRAME_SIZE *
- p_aout->output.output.i_bytes_per_frame;
+ /* 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;
+ }
- memset(&dsbcaps, 0, sizeof(DSBCAPS));
- dsbcaps.dwSize = sizeof(DSBCAPS);
- IDirectSoundBuffer_GetCaps( p_aout->output.p_sys->p_dsbuffer, &dsbcaps );
- msg_Dbg( p_aout, "requested %li bytes buffer and got %li bytes.",
- FRAMES_NUM * p_aout->output.p_sys->p_notif->i_frame_size,
- dsbcaps.dwBufferBytes );
+ /* Backup the size of a frame */
+ p_aout->output.p_sys->p_notif->i_frame_size = i_bytes_per_frame;
/* Now the secondary buffer is created, we need to setup its position
* notification */
&IID_IDirectSoundNotify,
(LPVOID *)&p_aout->output.p_sys->p_dsnotify ) )
{
- msg_Err( p_aout, "cannot get Notify interface" );
+ msg_Err( p_aout, "cannot get IDirectSoundNotify interface" );
goto error;
}
-
+
if FAILED( IDirectSoundNotify_SetNotificationPositions(
p_aout->output.p_sys->p_dsnotify,
FRAMES_NUM,
p_aout->output.p_sys->p_notif->p_events ) )
{
- msg_Err( p_aout, "cannot set position Notification" );
+ msg_Err( p_aout, "cannot set position notification" );
goto error;
}
- p_aout->output.i_nb_samples = FRAME_SIZE;
+ p_aout->output.p_sys->i_channel_mask = waveformat.dwChannelMask;
+ CheckReordering( p_aout, i_nb_channels );
- return 0;
+ return VLC_SUCCESS;
error:
if( p_aout->output.p_sys->p_dsbuffer )
}
/*****************************************************************************
- * DirectxCreateSecondaryBuffer
+ * CreateDSBufferPCM: creates a PCM direct sound buffer.
+ *****************************************************************************
+ * We first try to create a WAVE_FORMAT_IEEE_FLOAT buffer if supported by
+ * the hardware, otherwise we create a WAVE_FORMAT_PCM buffer.
+ ****************************************************************************/
+static int CreateDSBufferPCM( aout_instance_t *p_aout, int *i_format,
+ int i_channels, int i_nb_channels, int i_rate,
+ vlc_bool_t b_probe )
+{
+ if( CreateDSBuffer( p_aout, VLC_FOURCC('f','l','3','2'),
+ i_channels, i_nb_channels, i_rate,
+ FRAME_SIZE * 4 * i_nb_channels, b_probe )
+ != VLC_SUCCESS )
+ {
+ if ( CreateDSBuffer( p_aout, VLC_FOURCC('s','1','6','l'),
+ i_channels, i_nb_channels, i_rate,
+ FRAME_SIZE * 2 * i_nb_channels, b_probe )
+ != VLC_SUCCESS )
+ {
+ return VLC_EGENERIC;
+ }
+ else
+ {
+ *i_format = VLC_FOURCC('s','1','6','l');
+ return VLC_SUCCESS;
+ }
+ }
+ else
+ {
+ *i_format = VLC_FOURCC('f','l','3','2');
+ return VLC_SUCCESS;
+ }
+}
+
+/*****************************************************************************
+ * DestroyDSBuffer
*****************************************************************************
* This function destroys the secondary buffer.
*****************************************************************************/
-static void DirectxDestroySecondaryBuffer( aout_instance_t *p_aout )
+static void DestroyDSBuffer( aout_instance_t *p_aout )
{
- /* make sure the buffer isn't playing */
- if( p_aout->output.p_sys->p_dsbuffer )
- IDirectSoundBuffer_Stop( p_aout->output.p_sys->p_dsbuffer );
-
if( p_aout->output.p_sys->p_dsnotify )
{
IDirectSoundNotify_Release( p_aout->output.p_sys->p_dsnotify );
}
/*****************************************************************************
- * DirectxFillBuffer: Fill in one of the direct sound frame buffers.
+ * FillBuffer: Fill in one of the direct sound frame buffers.
*****************************************************************************
* Returns VLC_SUCCESS on success.
*****************************************************************************/
-static int DirectxFillBuffer( aout_instance_t *p_aout, int i_frame,
- aout_buffer_t *p_buffer )
+static int FillBuffer( aout_instance_t *p_aout, int i_frame,
+ aout_buffer_t *p_buffer )
{
notification_thread_t *p_notif = p_aout->output.p_sys->p_notif;
void *p_write_position, *p_wrap_around;
aout_instance_t *p_aout = p_notif->p_aout;
int i, i_which_frame, i_last_frame, i_next_frame;
mtime_t mtime;
+ vlc_bool_t b_sleek;
for( i = 0; i < FRAMES_NUM; i++ )
notification_events[i] = p_notif->p_events[i].hEventNotify;
+ /* We don't want any resampling when using S/PDIF output */
+ b_sleek = p_aout->output.output.i_format == VLC_FOURCC('s','p','d','i');
+
/* Tell the main thread that we are ready */
vlc_thread_ready( p_notif );
mtime = mdate();
/* We take into account the current latency */
- if( IDirectSoundBuffer_GetCurrentPosition(
- p_aout->output.p_sys->p_dsbuffer,
- &l_latency, NULL ) == DS_OK )
+ if SUCCEEDED( IDirectSoundBuffer_GetCurrentPosition(
+ p_aout->output.p_sys->p_dsbuffer,
+ &l_latency, NULL ) )
{
if( l_latency > (i_which_frame * FRAME_SIZE)
&& l_latency < ((i_which_frame+1) * FRAME_SIZE) )
p_buffer = aout_OutputNextBuffer( p_aout,
mtime + 1000000 / p_aout->output.output.i_rate *
- ((i - i_next_frame + 1) * FRAME_SIZE + l_latency), VLC_FALSE );
+ ((i - i_next_frame + 1) * FRAME_SIZE + l_latency), b_sleek );
/* If there is no audio data available and we have some buffered
* already, then just wait for the next time */
break;
}
- if( DirectxFillBuffer( p_aout, (i%FRAMES_NUM), p_buffer )
+ if( FillBuffer( p_aout, (i%FRAMES_NUM), p_buffer )
!= VLC_SUCCESS )
break;
}
+ /* make sure the buffer isn't playing */
+ IDirectSoundBuffer_Stop( p_aout->output.p_sys->p_dsbuffer );
+
/* free the events */
for( i = 0; i < FRAMES_NUM; i++ )
CloseHandle( notification_events[i] );
msg_Dbg( p_notif, "DirectSoundThread exiting" );
}
+
+/*****************************************************************************
+ * CheckReordering: Check if we need to do some channel re-ordering (the ac3
+ * channel order is different from the one chosen by
+ * Microsoft).
+ *****************************************************************************/
+static void CheckReordering( aout_instance_t *p_aout, int i_nb_channels )
+{
+ int i, j, k, l;
+
+#define i_channel_mask p_aout->output.p_sys->i_channel_mask
+#define pi_chan_table p_aout->output.p_sys->pi_chan_table
+
+ p_aout->output.p_sys->b_chan_reorder = VLC_FALSE;
+
+ pi_chan_table = malloc( i_nb_channels * sizeof(int) );
+ if( !pi_chan_table )
+ {
+ return;
+ }
+
+ for( i = 0, j = 0;
+ i < (int)(sizeof(pi_channels_out)/sizeof(uint32_t)); i++ )
+ {
+ if( i_channel_mask & pi_channels_out[i] )
+ {
+ for( k = 0, l = 0;
+ pi_channels_out[i] != pi_channels_ordered[k]; k++ )
+ {
+ if( i_channel_mask & pi_channels_ordered[k] )
+ {
+ l++;
+ }
+ }
+
+ pi_chan_table[j] = l;
+
+ j++;
+ }
+ }
+
+ for( i = 0; i < i_nb_channels; i++ )
+ {
+ if( pi_chan_table[i] != i )
+ {
+ p_aout->output.p_sys->b_chan_reorder = VLC_TRUE;
+ }
+ }
+
+ if( p_aout->output.p_sys->b_chan_reorder )
+ {
+ msg_Dbg( p_aout, "channel reordering needed" );
+ }
+
+#undef pi_chan_table
+#undef waveformat
+}
+
+/*****************************************************************************
+ * InterleaveFloat32/S16: change the channel order to the Microsoft one.
+ *****************************************************************************/
+static void InterleaveFloat32( float *p_buf, int *pi_chan_table,
+ int i_nb_channels )
+{
+ int i, j;
+ float p_tmp[10];
+
+ for( i = 0; i < FRAME_SIZE; i++ )
+ {
+ for( j = 0; j < i_nb_channels; j++ )
+ {
+ p_tmp[pi_chan_table[j]] = p_buf[i*i_nb_channels + j];
+ }
+
+ memcpy( &p_buf[i*i_nb_channels], p_tmp,
+ i_nb_channels * sizeof(float) );
+ }
+}
+
+static void InterleaveS16( int16_t *p_buf, int *pi_chan_table,
+ int i_nb_channels )
+{
+ int i, j;
+ int16_t p_tmp[10];
+
+ for( i = 0; i < FRAME_SIZE; i++ )
+ {
+ for( j = 0; j < i_nb_channels; j++ )
+ {
+ p_tmp[pi_chan_table[j]] = p_buf[i*i_nb_channels + j];
+ }
+
+ memcpy( &p_buf[i*i_nb_channels], p_tmp,
+ i_nb_channels * sizeof(int16_t) );
+ }
+}
projects / vlc / commitdiff