Data Structures
struct	aserver_message_t
struct	lives_audio_buf_t
Defines
#define	SAMPLE_MAX_16BIT_P 32767.0f
#define	SAMPLE_MAX_16BIT_N 32768.0f
#define	SAMPLE_MAX_16BITI 32768
#define	SWAP_U_TO_S 1
	sign swapping
#define	SWAP_S_TO_U 2
	signed to unsigned
#define	SWAP_X_TO_L 1
	endian swapping
#define	SWAP_L_TO_X 2
	local to other
#define	DEFAULT_AUDIO_RATE 44100
	defaults for when not specifed
#define	DEFAULT_AUDIO_CHANS 2
#define	DEFAULT_AUDIO_SAMPS 16
#define	DEFAULT_AUDIO_SIGNED8 (AFORM_UNSIGNED)
#define	DEFAULT_AUDIO_SIGNED16 !(AFORM_UNSIGNED)
#define	MAX_AUDIO_MEM 810241024
	TODO ** - make configurable - audio buffer size for rendering.
#define	RENDER_BLOCK_SIZE 1024
	chunk size for interpolate/effect cycle
#define	SILENCE_BLOCK_SIZE 65536
	size of silent block in bytes
#define	READ_BLOCK_SIZE 4096
	chunk size for audio buffer reads
#define	XSAMPLES 128000
	buffer size for realtime audio
#define	ASERVER_CMD_PROCESSED 0
#define	ASERVER_CMD_FILE_OPEN 1
#define	ASERVER_CMD_FILE_CLOSE 2
#define	ASERVER_CMD_FILE_SEEK 3
#define	RECA_WINDOW_GRAB 1
#define	RECA_NEW_CLIP 2
#define	RECA_EXISTING 3
Enumerations
enum	lives_operation_t { LIVES_NOP_OPERATION = 0, LIVES_READ_OPERATION, LIVES_WRITE_OPERATION, LIVES_CONVERT_OPERATION }
enum	lives_audio_loop_t { AUDIO_LOOP_NONE, AUDIO_LOOP_FORWARD, AUDIO_LOOP_PINGPONG }
Functions
void	sample_silence_dS (float *dst, unsigned long nsamples)
void	sample_move_d8_d16 (short dst, guchar src, unsigned long nsamples, size_t tbytes, float scale, int nDstChannels, int nSrcChannels, int swap_sign)
void	sample_move_d16_d16 (short dst, short src, unsigned long nsamples, size_t tbytes, float scale, int nDstChannels, int nSrcChannels, int swap_endian, int swap_sign)
void	sample_move_d16_d8 (uint8_t dst, short src, unsigned long nsamples, size_t tbytes, float scale, int nDstChannels, int nSrcChannels, int swap_sign)
void	sample_move_d16_float (float dst, short src, unsigned long nsamples, unsigned long src_skip, int is_unsigned, float vol)
long	sample_move_float_int (void holding_buff, float *float_buffer, int nsamps, float scale, int chans, int asamps, int usigned, gboolean swap_endian, float vol)
	returns frames output
long	sample_move_abuf_float (float **obuf, int nchans, int nsamps, int out_arate, float vol)
long	sample_move_abuf_int16 (short *obuf, int nchans, int nsamps, int out_arate)
long	render_audio_segment (gint nfiles, gint from_files, gint to_file, gdouble avels, gdouble fromtime, weed_timecode_t tc_start, weed_timecode_t tc_end, gdouble chvol, gdouble opvol_start, gdouble opvol_end, lives_audio_buf_t *obuf)
void	aud_fade (gint fileno, gdouble startt, gdouble endt, gdouble startv, gdouble endv)
	fade in/fade out
void	fill_abuffer_from (lives_audio_buf_t abuf, weed_plant_t event_list, weed_plant_t *st_event, gboolean exact)
gboolean	resync_audio (gint frameno)
lives_audio_track_state_t *	get_audio_and_effects_state_at (weed_plant_t event_list, weed_plant_t st_event, gboolean get_audstate, gboolean exact)
void	init_jack_audio_buffers (gint achans, gint arate, gboolean exact)
void	free_jack_audio_buffers (void)
void	init_pulse_audio_buffers (gint achans, gint arate, gboolean exact)
void	free_pulse_audio_buffers (void)
void	audio_free_fnames (void)
lives_audio_buf_t *	audio_cache_init (void)
void	audio_cache_end (void)
lives_audio_buf_t *	audio_cache_get_buffer (void)
gboolean	start_audio_stream (void)
void	stop_audio_stream (void)
void	clear_audio_stream (void)
LIVES_INLINE void	audio_stream (void *buff, size_t nbytes, int fd)

Define Documentation

#define ASERVER_CMD_FILE_CLOSE 2

#define ASERVER_CMD_FILE_OPEN 1

#define ASERVER_CMD_FILE_SEEK 3

#define ASERVER_CMD_PROCESSED 0

asynch msging

#define DEFAULT_AUDIO_CHANS 2

#define DEFAULT_AUDIO_RATE 44100

defaults for when not specifed

#define DEFAULT_AUDIO_SAMPS 16

#define DEFAULT_AUDIO_SIGNED16 !(AFORM_UNSIGNED)

#define DEFAULT_AUDIO_SIGNED8 (AFORM_UNSIGNED)

#define MAX_AUDIO_MEM 8*1024*1024

TODO ** - make configurable - audio buffer size for rendering.

#define READ_BLOCK_SIZE 4096

chunk size for audio buffer reads

#define RECA_EXISTING 3

#define RECA_NEW_CLIP 2

#define RECA_WINDOW_GRAB 1

#define RENDER_BLOCK_SIZE 1024

chunk size for interpolate/effect cycle

#define SAMPLE_MAX_16BIT_N 32768.0f

#define SAMPLE_MAX_16BIT_P 32767.0f

#define SAMPLE_MAX_16BITI 32768

#define SILENCE_BLOCK_SIZE 65536

size of silent block in bytes

#define SWAP_L_TO_X 2

local to other

#define SWAP_S_TO_U 2

signed to unsigned

#define SWAP_U_TO_S 1

sign swapping

unsigned to signed

#define SWAP_X_TO_L 1

endian swapping

other to local

#define XSAMPLES 128000

buffer size for realtime audio

Enumeration Type Documentation

enum lives_audio_loop_t

Enumerator:

AUDIO_LOOP_NONE
AUDIO_LOOP_FORWARD
AUDIO_LOOP_PINGPONG

enum lives_operation_t

Enumerator:

LIVES_NOP_OPERATION
LIVES_READ_OPERATION
LIVES_WRITE_OPERATION
LIVES_CONVERT_OPERATION

Function Documentation

void aud_fade	(	gint	fileno,
		gdouble	startt,
		gdouble	endt,
		gdouble	startv,
		gdouble	endv
	)		`[inline]`

fade in/fade out

void audio_cache_end ( void )

< tell cache thread to exit when possible

lives_audio_buf_t* audio_cache_get_buffer ( void )

lives_audio_buf_t* audio_cache_init ( void )

void audio_free_fnames ( void )

LIVES_INLINE void audio_stream	(	void *	buff,
		size_t	nbytes,
		int	fd
	)

void clear_audio_stream ( void )

void fill_abuffer_from	(	lives_audio_buf_t *	abuf,
		weed_plant_t *	event_list,
		weed_plant_t *	st_event,
		gboolean	exact
	)

void free_jack_audio_buffers ( void )

void free_pulse_audio_buffers ( void )

lives_audio_track_state_t* get_audio_and_effects_state_at	(	weed_plant_t *	event_list,
		weed_plant_t *	st_event,
		gboolean	get_audstate,
		gboolean	exact
	)

void init_jack_audio_buffers	(	gint	achans,
		gint	arate,
		gboolean	exact
	)

void init_pulse_audio_buffers	(	gint	achans,
		gint	arate,
		gboolean	exact
	)

long render_audio_segment	(	gint	nfiles,
		gint *	from_files,
		gint	to_file,
		gdouble *	avels,
		gdouble *	fromtime,
		weed_timecode_t	tc_start,
		weed_timecode_t	tc_end,
		gdouble *	chvol,
		gdouble	opvol_start,
		gdouble	opvol_end,
		lives_audio_buf_t *	obuf
	)

gboolean resync_audio ( gint frameno )

long sample_move_abuf_float	(	float **	obuf,
		int	nchans,
		int	nsamps,
		int	out_arate,
		float	vol
	)

long sample_move_abuf_int16	(	short *	obuf,
		int	nchans,
		int	nsamps,
		int	out_arate
	)

void sample_move_d16_d16	(	short *	dst,
		short *	src,
		unsigned long	nsamples,
		size_t	tbytes,
		float	scale,
		int	nDstChannels,
		int	nSrcChannels,
		int	swap_endian,
		int	swap_sign
	)

void sample_move_d16_d8	(	uint8_t *	dst,
		short *	src,
		unsigned long	nsamples,
		size_t	tbytes,
		float	scale,
		int	nDstChannels,
		int	nSrcChannels,
		int	swap_sign
	)

void sample_move_d16_float	(	float *	dst,
		short *	src,
		unsigned long	nsamples,
		unsigned long	src_skip,
		int	is_unsigned,
		float	vol
	)

void sample_move_d8_d16	(	short *	dst,
		guchar *	src,
		unsigned long	nsamples,
		size_t	tbytes,
		float	scale,
		int	nDstChannels,
		int	nSrcChannels,
		int	swap_sign
	)

long sample_move_float_int	(	void *	holding_buff,
		float **	float_buffer,
		int	nsamps,
		float	scale,
		int	chans,
		int	asamps,
		int	usigned,
		gboolean	swap_endian,
		float	vol
	)

returns frames output

void sample_silence_dS	(	float *	dst,
		unsigned long	nsamples
	)

gboolean start_audio_stream ( void )

void stop_audio_stream ( void )

Data Structures

Defines

Enumerations

Functions

Define Documentation

Enumeration Type Documentation

Function Documentation