wav_out.c File Reference

#include <gpac/modules/audio_out.h>
#include <windows.h>
#include <gpac/constants.h>

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Data Structures
struct	WAVContext
struct	WAVEFORMATEXTENSIBLE
union	WAVEFORMATEXTENSIBLE.Samples

Macros
#define	MAX_AUDIO_BUFFER   30
#define	USE_WAVE_EXT
#define	WAVE_FORMAT_EXTENSIBLE   0xFFFE
#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
#define	WAVCTX()   WAVContext *ctx = (WAVContext *)dr->opaque;

Typedefs
typedef struct WAVEFORMATEXTENSIBLE *	PWAVEFORMATEXTENSIBLE

Functions
static GF_Err	WAV_Setup (GF_AudioOutput *dr, void *os_handle, u32 num_buffers, u32 total_duration)
static void CALLBACK	WaveProc (HWAVEOUT hwo, UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2)
static void	close_waveform (GF_AudioOutput *dr)
static void	WAV_Shutdown (GF_AudioOutput *dr)
static GF_Err	WAV_ConfigureOutput (GF_AudioOutput *dr, u32 *SampleRate, u32 *NbChannels, u32 *nbBitsPerSample, u32 channel_cfg)
static void	WAV_WriteAudio (GF_AudioOutput *dr)
static void	WAV_Play (GF_AudioOutput *dr, u32 PlayType)
static void	set_vol_pan (WAVContext *ctx)
static void	WAV_SetVolume (GF_AudioOutput *dr, u32 Volume)
static void	WAV_SetPan (GF_AudioOutput *dr, u32 Pan)
static GF_Err	WAV_QueryOutputSampleRate (GF_AudioOutput *dr, u32 *desired_samplerate, u32 *NbChannels, u32 *nbBitsPerSample)
static u32	WAV_GetAudioDelay (GF_AudioOutput *dr)
static u32	WAV_GetTotalBufferTime (GF_AudioOutput *dr)
void *	NewWAVRender ()
void	DeleteWAVRender (void *ifce)
const u32 *	QueryInterfaces ()
GF_BaseInterface *	LoadInterface (u32 InterfaceType)
void	ShutdownInterface (GF_BaseInterface *ifce)

Variables
static const GUID	GPAC_KSDATAFORMAT_SUBTYPE_PCM = {0x00000001,0x0000,0x0010, {0x80,0x00,0x00,0xaa,0x00,0x38,0x9b,0x71} }

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Data Structure Documentation

struct WAVContext

Collaboration diagram for WAVContext:

Data Fields
HWAVEOUT	hwo
WAVEHDR	wav_hdr[30]
WAVEFORMATEX	fmt
u32	num_buffers
u32	buffer_size
Bool	exit_request
HANDLE	event
u32	vol
u32	pan
u32	delay
u32	total_length_ms
Bool	force_config
u32	cfg_num_buffers
u32	cfg_duration
char *	wav_buf

struct WAVEFORMATEXTENSIBLE

Collaboration diagram for WAVEFORMATEXTENSIBLE:

Data Fields
WAVEFORMATEX	Format
union WAVEFORMATEXTENSIBLE	Samples
DWORD	dwChannelMask
GUID	SubFormat

union WAVEFORMATEXTENSIBLE.Samples

Collaboration diagram for WAVEFORMATEXTENSIBLE.Samples:

Data Fields
WORD	wValidBitsPerSample
WORD	wSamplesPerBlock
WORD	wReserved

Macro Definition Documentation

#define MAX_AUDIO_BUFFER   30

#define USE_WAVE_EXT

#define WAVE_FORMAT_EXTENSIBLE   0xFFFE

#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

#define WAVCTX

(

)

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

Typedef Documentation

typedef struct WAVEFORMATEXTENSIBLE * PWAVEFORMATEXTENSIBLE

Function Documentation

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

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static void CALLBACK WaveProc ( HWAVEOUT  hwo, UINT  uMsg, DWORD  dwInstance, DWORD  dwParam1, DWORD  dwParam2  )

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static void close_waveform ( GF_AudioOutput *  dr )

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static void WAV_Shutdown ( GF_AudioOutput *  dr )

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static GF_Err WAV_ConfigureOutput ( GF_AudioOutput *  dr, u32 *  SampleRate, u32 *  NbChannels, u32 *  nbBitsPerSample, u32  channel_cfg  )

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static void WAV_WriteAudio ( GF_AudioOutput *  dr )

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static void WAV_Play ( GF_AudioOutput *  dr, u32  PlayType  )

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static void set_vol_pan ( WAVContext *  ctx )

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static void WAV_SetVolume ( GF_AudioOutput *  dr, u32  Volume  )

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static void WAV_SetPan ( GF_AudioOutput *  dr, u32  Pan  )

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

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static u32 WAV_GetAudioDelay ( GF_AudioOutput *  dr )

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static u32 WAV_GetTotalBufferTime ( GF_AudioOutput *  dr )

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void* NewWAVRender

(

)

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void DeleteWAVRender

(

void *

ifce

)

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const u32* QueryInterfaces

(

)

GF_BaseInterface* LoadInterface

(

u32

InterfaceType

)

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void ShutdownInterface

(

GF_BaseInterface *

ifce

)

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Variable Documentation

const GUID GPAC_KSDATAFORMAT_SUBTYPE_PCM = {0x00000001,0x0000,0x0010, {0x80,0x00,0x00,0xaa,0x00,0x38,0x9b,0x71} }

static