vlc_aout.h File Reference

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Data Structures
struct	aout_buffer_t
	audio output buffer More...
struct	audio_date_t
	date incrementation helper structure without long-term rounding errors More...
struct	aout_alloc_t
	allocation of memory in the audio output More...
struct	aout_mixer_t
	audio output mixer More...
struct	aout_fifo_t
	audio output buffer FIFO More...
struct	aout_filter_t
	audio output filter More...
struct	aout_input_t
	an input stream for the audio output More...
struct	aout_output_t
	an output stream for the audio output More...
struct	aout_instance_t
	audio output thread descriptor More...
Defines
#define	VLC_AOUT_H   1
#define	AOUT_FMTS_IDENTICAL(p_first, p_second)
#define	AOUT_FMTS_SIMILAR(p_first, p_second)
#define	AOUT_FMT_S16_NE   VLC_FOURCC('s','1','6','l')
#define	AOUT_FMT_U16_NE   VLC_FOURCC('u','1','6','l')
#define	AOUT_FMT_S24_NE   VLC_FOURCC('s','2','4','l')
#define	AOUT_FMT_SPDIF_NE   VLC_FOURCC('s','p','d','i')
#define	AOUT_FMT_NON_LINEAR(p_format)
#define	FIXED32_FRACBITS   28
#define	FIXED32_MIN   ((vlc_fixed_t) -0x80000000L)
#define	FIXED32_MAX   ((vlc_fixed_t) +0x7fffffffL)
#define	FIXED32_ONE   ((vlc_fixed_t) 0x10000000)
#define	AOUT_CHAN_CENTER   0x1
#define	AOUT_CHAN_LEFT   0x2
#define	AOUT_CHAN_RIGHT   0x4
#define	AOUT_CHAN_REARCENTER   0x10
#define	AOUT_CHAN_REARLEFT   0x20
#define	AOUT_CHAN_REARRIGHT   0x40
#define	AOUT_CHAN_MIDDLELEFT   0x100
#define	AOUT_CHAN_MIDDLERIGHT   0x200
#define	AOUT_CHAN_LFE   0x1000
#define	AOUT_CHAN_DOLBYSTEREO   0x10000
#define	AOUT_CHAN_DUALMONO   0x20000
#define	AOUT_CHAN_REVERSESTEREO   0x40000
#define	AOUT_CHAN_PHYSMASK   0xFFFF
#define	AOUT_CHAN_MAX   9
#define	AOUT_VAR_MONO   1
#define	AOUT_VAR_STEREO   2
#define	AOUT_VAR_2F2R   4
#define	AOUT_VAR_3F2R   5
#define	AOUT_VAR_5_1   6
#define	AOUT_VAR_6_1   7
#define	AOUT_VAR_7_1   8
#define	AOUT_VAR_SPDIF   10
#define	AOUT_VAR_CHAN_STEREO   1
#define	AOUT_VAR_CHAN_RSTEREO   2
#define	AOUT_VAR_CHAN_LEFT   3
#define	AOUT_VAR_CHAN_RIGHT   4
#define	AOUT_VAR_CHAN_DOLBYS   5
#define	aout_BufferFree(p_buffer)
#define	AOUT_SPDIF_SIZE   6144
#define	A52_FRAME_NB   1536
#define	AOUT_MAX_INPUT_RATE   (4)
#define	AOUT_ALLOC_NONE   0
#define	AOUT_ALLOC_STACK   1
#define	AOUT_ALLOC_HEAP   2
#define	AOUT_RESAMPLING_NONE   0
#define	AOUT_RESAMPLING_UP   1
#define	AOUT_RESAMPLING_DOWN   2
#define	aout_VolumeGet(a, b)   __aout_VolumeGet(VLC_OBJECT(a), b)
#define	aout_VolumeSet(a, b)   __aout_VolumeSet(VLC_OBJECT(a), b)
#define	aout_VolumeInfos(a, b)   __aout_VolumeInfos(VLC_OBJECT(a), b)
#define	aout_VolumeUp(a, b, c)   __aout_VolumeUp(VLC_OBJECT(a), b, c)
#define	aout_VolumeDown(a, b, c)   __aout_VolumeDown(VLC_OBJECT(a), b, c)
#define	aout_VolumeMute(a, b)   __aout_VolumeMute(VLC_OBJECT(a), b)
#define	aout_VisualNext(a)   aout_VisualChange( VLC_OBJECT(a),1 )
#define	aout_VisualPrev(a)   aout_VisualChange( VLC_OBJECT(a),-1 )
Typedefs
typedef int32_t	vlc_fixed_t
Functions
void	aout_DateInit (audio_date_t *, uint32_t)
void	aout_DateSet (audio_date_t *, mtime_t)
void	aout_DateMove (audio_date_t *, mtime_t)
mtime_t	aout_DateGet (const audio_date_t *)
mtime_t	aout_DateIncrement (audio_date_t *, uint32_t)
aout_buffer_t *	aout_OutputNextBuffer (aout_instance_t *, mtime_t, bool)
int	aout_CheckChannelReorder (const uint32_t *, const uint32_t *, uint32_t, int, int *)
void	aout_ChannelReorder (uint8_t *, int, int, const int *, int)
unsigned int	aout_FormatNbChannels (const audio_sample_format_t *p_format)
unsigned int	aout_BitsPerSample (vlc_fourcc_t i_format)
void	aout_FormatPrepare (audio_sample_format_t *p_format)
void	aout_FormatPrint (aout_instance_t *p_aout, const char *psz_text, const audio_sample_format_t *p_format)
const char *	aout_FormatPrintChannels (const audio_sample_format_t *)
mtime_t	aout_FifoFirstDate (aout_instance_t *, aout_fifo_t *)
aout_buffer_t *	aout_FifoPop (aout_instance_t *p_aout, aout_fifo_t *p_fifo)
void	aout_VolumeSoftInit (aout_instance_t *)
void	aout_VolumeNoneInit (aout_instance_t *)
int	__aout_VolumeGet (vlc_object_t *, audio_volume_t *)
int	__aout_VolumeSet (vlc_object_t *, audio_volume_t)
int	__aout_VolumeInfos (vlc_object_t *, audio_volume_t *)
int	__aout_VolumeUp (vlc_object_t *, int, audio_volume_t *)
int	__aout_VolumeDown (vlc_object_t *, int, audio_volume_t *)
int	__aout_VolumeMute (vlc_object_t *, audio_volume_t *)
int	aout_FindAndRestart (vlc_object_t *, const char *, vlc_value_t, vlc_value_t, void *)
int	aout_ChannelsRestart (vlc_object_t *, const char *, vlc_value_t, vlc_value_t, void *)
void	aout_EnableFilter (vlc_object_t *, const char *, bool)
	Enable or disable an audio filter.
char *	aout_VisualChange (vlc_object_t *, int)
	Change audio visualization -1 goes backwards, +1 goes forward.

---

Define Documentation

#define A52_FRAME_NB   1536

#define AOUT_ALLOC_HEAP   2

#define AOUT_ALLOC_NONE   0

#define AOUT_ALLOC_STACK   1

#define aout_BufferFree

(

p_buffer

)

Value:

do {                                    \
    if( p_buffer != NULL && (p_buffer)->i_alloc_type == AOUT_ALLOC_HEAP )   \
    {                                                                       \
        free( p_buffer );                                                   \
    }                                                                       \
    p_buffer = NULL; } while(0)

#define AOUT_CHAN_CENTER   0x1

#define AOUT_CHAN_DOLBYSTEREO   0x10000

#define AOUT_CHAN_DUALMONO   0x20000

#define AOUT_CHAN_LEFT   0x2

#define AOUT_CHAN_LFE   0x1000

#define AOUT_CHAN_MAX   9

#define AOUT_CHAN_MIDDLELEFT   0x100

#define AOUT_CHAN_MIDDLERIGHT   0x200

#define AOUT_CHAN_PHYSMASK   0xFFFF

#define AOUT_CHAN_REARCENTER   0x10

#define AOUT_CHAN_REARLEFT   0x20

#define AOUT_CHAN_REARRIGHT   0x40

#define AOUT_CHAN_REVERSESTEREO   0x40000

#define AOUT_CHAN_RIGHT   0x4

#define AOUT_FMT_NON_LINEAR

(

p_format

)

Value:

( ((p_format)->i_format == VLC_FOURCC('s','p','d','i'))                \
       || ((p_format)->i_format == VLC_FOURCC('s','p','d','b'))            \
       || ((p_format)->i_format == VLC_FOURCC('a','5','2',' '))            \
       || ((p_format)->i_format == VLC_FOURCC('d','t','s',' ')) )

#define AOUT_FMT_S16_NE   VLC_FOURCC('s','1','6','l')

#define AOUT_FMT_S24_NE   VLC_FOURCC('s','2','4','l')

#define AOUT_FMT_SPDIF_NE   VLC_FOURCC('s','p','d','i')

#define AOUT_FMT_U16_NE   VLC_FOURCC('u','1','6','l')

#define AOUT_FMTS_IDENTICAL	(	p_first,
		p_second		)

Value:

(                          \
    ((p_first)->i_format == (p_second)->i_format)                           \
      && ((p_first)->i_rate == (p_second)->i_rate)                          \
      && ((p_first)->i_physical_channels == (p_second)->i_physical_channels)\
      && ((p_first)->i_original_channels == (p_second)->i_original_channels) )

#define AOUT_FMTS_SIMILAR	(	p_first,
		p_second		)

Value:

(                            \
    ((p_first)->i_rate == (p_second)->i_rate)                               \
      && ((p_first)->i_physical_channels == (p_second)->i_physical_channels)\
      && ((p_first)->i_original_channels == (p_second)->i_original_channels) )

#define AOUT_MAX_INPUT_RATE   (4)

#define AOUT_RESAMPLING_DOWN   2

#define AOUT_RESAMPLING_NONE   0

#define AOUT_RESAMPLING_UP   1

#define AOUT_SPDIF_SIZE   6144

#define AOUT_VAR_2F2R   4

#define AOUT_VAR_3F2R   5

#define AOUT_VAR_5_1   6

#define AOUT_VAR_6_1   7

#define AOUT_VAR_7_1   8

#define AOUT_VAR_CHAN_DOLBYS   5

#define AOUT_VAR_CHAN_LEFT   3

#define AOUT_VAR_CHAN_RIGHT   4

#define AOUT_VAR_CHAN_RSTEREO   2

#define AOUT_VAR_CHAN_STEREO   1

#define AOUT_VAR_MONO   1

#define AOUT_VAR_SPDIF   10

#define AOUT_VAR_STEREO   2

#define aout_VisualNext

(

a

)

aout_VisualChange( VLC_OBJECT(a),1 )

#define aout_VisualPrev

(

a

)

aout_VisualChange( VLC_OBJECT(a),-1 )

#define aout_VolumeDown	(	a,
		b,
		c		)	__aout_VolumeDown(VLC_OBJECT(a), b, c)

#define aout_VolumeGet	(	a,
		b		)	__aout_VolumeGet(VLC_OBJECT(a), b)

#define aout_VolumeInfos	(	a,
		b		)	__aout_VolumeInfos(VLC_OBJECT(a), b)

#define aout_VolumeMute	(	a,
		b		)	__aout_VolumeMute(VLC_OBJECT(a), b)

#define aout_VolumeSet	(	a,
		b		)	__aout_VolumeSet(VLC_OBJECT(a), b)

#define aout_VolumeUp	(	a,
		b,
		c		)	__aout_VolumeUp(VLC_OBJECT(a), b, c)

#define FIXED32_FRACBITS   28

#define FIXED32_MAX   ((vlc_fixed_t) +0x7fffffffL)

#define FIXED32_MIN   ((vlc_fixed_t) -0x80000000L)

#define FIXED32_ONE   ((vlc_fixed_t) 0x10000000)

#define VLC_AOUT_H   1

---

Typedef Documentation

typedef int32_t vlc_fixed_t

---

Function Documentation

int __aout_VolumeDown	(	vlc_object_t *	,
		int	,
		audio_volume_t *
	)

int __aout_VolumeGet	(	vlc_object_t *	,
		audio_volume_t *
	)

int __aout_VolumeInfos	(	vlc_object_t *	,
		audio_volume_t *
	)

int __aout_VolumeMute	(	vlc_object_t *	,
		audio_volume_t *
	)

int __aout_VolumeSet	(	vlc_object_t *	,
		audio_volume_t
	)

int __aout_VolumeUp	(	vlc_object_t *	,
		int	,
		audio_volume_t *
	)

unsigned int aout_BitsPerSample

(

vlc_fourcc_t

i_format

)

void aout_ChannelReorder	(	uint8_t *	,
		int	,
		int	,
		const int *	,
		int
	)

int aout_ChannelsRestart	(	vlc_object_t *	,
		const char *	,
		vlc_value_t	,
		vlc_value_t	,
		void *
	)

int aout_CheckChannelReorder	(	const uint32_t *	,
		const uint32_t *	,
		uint32_t	,
		int	,
		int *
	)

mtime_t aout_DateGet

(

const audio_date_t *

)

mtime_t aout_DateIncrement	(	audio_date_t *	,
		uint32_t
	)

void aout_DateInit	(	audio_date_t *	,
		uint32_t
	)

void aout_DateMove	(	audio_date_t *	,
		mtime_t
	)

void aout_DateSet	(	audio_date_t *	,
		mtime_t
	)

void aout_EnableFilter	(	vlc_object_t *	p_this,
		const char *	psz_name,
		bool	b_add
	)

Enable or disable an audio filter.

Parameters:

	p_this	a vlc object
	psz_name	name of the filter
	b_add	are we adding or removing the filter ?

mtime_t aout_FifoFirstDate	(	aout_instance_t *	,
		aout_fifo_t *
	)

aout_buffer_t* aout_FifoPop	(	aout_instance_t *	p_aout,
		aout_fifo_t *	p_fifo
	)

int aout_FindAndRestart	(	vlc_object_t *	,
		const char *	,
		vlc_value_t	,
		vlc_value_t	,
		void *
	)

unsigned int aout_FormatNbChannels

(

const audio_sample_format_t *

p_format

)

void aout_FormatPrepare

(

audio_sample_format_t *

p_format

)

void aout_FormatPrint	(	aout_instance_t *	p_aout,
		const char *	psz_text,
		const audio_sample_format_t *	p_format
	)

const char* aout_FormatPrintChannels

(

const audio_sample_format_t *

)

aout_buffer_t* aout_OutputNextBuffer	(	aout_instance_t *	,
		mtime_t	,
		bool
	)

char* aout_VisualChange	(	vlc_object_t *	,
		int
	)

Change audio visualization -1 goes backwards, +1 goes forward.

void aout_VolumeNoneInit

(

aout_instance_t *

)

void aout_VolumeSoftInit

(

aout_instance_t *

)

---