dx_audio.c File Reference

#include "dx_hw.h"

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Data Structures
struct	DSContext

Macros
#define	MAX_NUM_BUFFERS   20
#define	DSCONTEXT()   DSContext *ctx = (DSContext *)dr->opaque;

Typedefs
typedef HRESULT(WINAPI *	DIRECTSOUNDCREATEPROC) (LPCGUID pcGuidDevice, LPDIRECTSOUND *ppDS, LPUNKNOWN pUnkOuter)

Functions
void	DS_WriteAudio (GF_AudioOutput *dr)
void	DS_WriteAudio_Notifs (GF_AudioOutput *dr)
static GF_Err	DS_Setup (GF_AudioOutput *dr, void *os_handle, u32 num_buffers, u32 total_duration)
void	DS_ResetBuffer (DSContext *ctx)
void	DS_ReleaseBuffer (GF_AudioOutput *dr)
static void	DS_Shutdown (GF_AudioOutput *dr)
static GF_Err	DS_Configure (GF_AudioOutput *dr, u32 *SampleRate, u32 *NbChannels, u32 *audioFormat, u64 channel_cfg)
static Bool	DS_RestoreBuffer (LPDIRECTSOUNDBUFFER pDSBuffer)
void	DS_FillBuffer (GF_AudioOutput *dr, u32 buffer)
static GF_Err	DS_QueryOutputSampleRate (GF_AudioOutput *dr, u32 *desired_samplerate, u32 *NbChannels, u32 *nbBitsPerSample)
static void	DS_Play (GF_AudioOutput *dr, u32 PlayType)
static void	DS_SetVolume (GF_AudioOutput *dr, u32 Volume)
static void	DS_SetPan (GF_AudioOutput *dr, u32 Pan)
static void	DS_SetPriority (GF_AudioOutput *dr, u32 Priority)
static u32	DS_GetAudioDelay (GF_AudioOutput *dr)
static u32	DS_GetTotalBufferTime (GF_AudioOutput *dr)
void *	NewAudioOutput ()
void	DeleteDxAudioOutput (void *ifce)

Variables
static GF_GPACArg	DSAudioArgs []

---

Data Structure Documentation

DSContext

struct DSContext

Data Fields
Bool	force_config
u32	cfg_num_buffers
u32	cfg_duration
HWND	hWnd
LPDIRECTSOUND	pDS
WAVEFORMATEX	format
IDirectSoundBuffer *	pOutput
u32	buffer_size
u32	num_audio_buffer
u32	total_audio_buffer_ms
Bool	use_notif
u32	frame_state[MAX_NUM_BUFFERS]
DSBPOSITIONNOTIFY	notif_events[MAX_NUM_BUFFERS]
HANDLE	events[MAX_NUM_BUFFERS]
HMODULE	hDSoundLib
DIRECTSOUNDCREATEPROC	DirectSoundCreate

Macro Definition Documentation

MAX_NUM_BUFFERS

#define MAX_NUM_BUFFERS   20

DSCONTEXT

#define DSCONTEXT

(

)

DSContext *ctx = (DSContext *)dr->opaque;

Typedef Documentation

DIRECTSOUNDCREATEPROC

typedef HRESULT(WINAPI * DIRECTSOUNDCREATEPROC) (LPCGUID pcGuidDevice, LPDIRECTSOUND *ppDS, LPUNKNOWN pUnkOuter)

Function Documentation

DS_WriteAudio()

void DS_WriteAudio

(

GF_AudioOutput *

dr

)

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DS_WriteAudio_Notifs()

void DS_WriteAudio_Notifs

(

GF_AudioOutput *

dr

)

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DS_Setup()

static GF_Err DS_Setup ( GF_AudioOutput *  dr, void *  os_handle, u32  num_buffers, u32  total_duration  )

static

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DS_ResetBuffer()

void DS_ResetBuffer

(

DSContext *

ctx

)

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DS_ReleaseBuffer()

void DS_ReleaseBuffer

(

GF_AudioOutput *

dr

)

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DS_Shutdown()

static void DS_Shutdown ( GF_AudioOutput *  dr )

static

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DS_Configure()

static GF_Err DS_Configure ( GF_AudioOutput *  dr, u32 *  SampleRate, u32 *  NbChannels, u32 *  audioFormat, u64  channel_cfg  )

static

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DS_RestoreBuffer()

static Bool DS_RestoreBuffer ( LPDIRECTSOUNDBUFFER  pDSBuffer )

static

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DS_FillBuffer()

void DS_FillBuffer	(	GF_AudioOutput *	dr,
		u32	buffer
	)

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DS_QueryOutputSampleRate()

static GF_Err DS_QueryOutputSampleRate ( GF_AudioOutput *  dr, u32 *  desired_samplerate, u32 *  NbChannels, u32 *  nbBitsPerSample  )

static

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DS_Play()

static void DS_Play ( GF_AudioOutput *  dr, u32  PlayType  )

static

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DS_SetVolume()

static void DS_SetVolume ( GF_AudioOutput *  dr, u32  Volume  )

static

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DS_SetPan()

static void DS_SetPan ( GF_AudioOutput *  dr, u32  Pan  )

static

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DS_SetPriority()

static void DS_SetPriority ( GF_AudioOutput *  dr, u32  Priority  )

static

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DS_GetAudioDelay()

static u32 DS_GetAudioDelay ( GF_AudioOutput *  dr )

static

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DS_GetTotalBufferTime()

static u32 DS_GetTotalBufferTime ( GF_AudioOutput *  dr )

static

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NewAudioOutput()

void * NewAudioOutput

(

)

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DeleteDxAudioOutput()

void DeleteDxAudioOutput

(

void *

ifce

)

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Variable Documentation

DSAudioArgs

GF_GPACArg DSAudioArgs[]

static

Initial value:

= {
        GF_DEF_ARG("disable-notif", NULL, "disable buffer position notifications", "false", NULL, GF_ARG_BOOL, 0),
        {0},
}