stretch.c File Reference

#include <stdio.h>
#include <pthread.h>
#include <xine/xine_internal.h>
#include <xine/xineutils.h>
#include <xine/post.h>
#include "dsp.h"
#include <xine/resample.h>
#include "audio_filters.h"

Data Structures
struct	stretchscr_s
struct	stretch_parameters_s

Macros
#define	AUDIO_FRAGMENT   120/1000 /* ms of audio */
#define	CLIP_INT16(s)

Typedefs
typedef struct stretchscr_s	stretchscr_t
typedef struct post_plugin_stretch_s	post_plugin_stretch_t
typedef struct stretch_parameters_s	stretch_parameters_t

Functions
static int	stretchscr_get_priority (scr_plugin_t *scr)
static void	stretchscr_set_pivot (stretchscr_t *this)
static int	stretchscr_set_speed (scr_plugin_t *scr, int speed)
static void	stretchscr_adjust (scr_plugin_t *scr, int64_t vpts)
static void	stretchscr_start (scr_plugin_t *scr, int64_t start_vpts)
static int64_t	stretchscr_get_current (scr_plugin_t *scr)
static void	stretchscr_exit (scr_plugin_t *scr)
static stretchscr_t *	stretchscr_init (double *stretch_factor)
	PARAM_ITEM (POST_PARAM_TYPE_BOOL, preserve_pitch, PARAM_ITEM(NULL, PARAM_ITEM(0, 1, PARAM_ITEM(0, "Preserve pitch")
static int	set_parameters (xine_post_t *this_gen, const void *param_gen)
static int	get_parameters (xine_post_t *this_gen, void *param_gen)
static xine_post_api_descr_t *	get_param_descr (void)
static char *	get_help (void)
static int	stretch_port_open (xine_audio_port_t *port_gen, xine_stream_t *stream, uint32_t bits, uint32_t rate, int mode)
static void	stretch_port_close (xine_audio_port_t *port_gen, xine_stream_t *stream)
static void	stretch_process_fragment (post_audio_port_t *port, xine_stream_t *stream, extra_info_t *extra_info)
static void	stretch_port_put_buffer (xine_audio_port_t *port_gen, audio_buffer_t *buf, xine_stream_t *stream)
static void	stretch_dispose (post_plugin_t *this_gen)
static post_plugin_t *	stretch_open_plugin (post_class_t *class_gen, int inputs, xine_audio_port_t **audio_target, xine_video_port_t **video_target)
void *	stretch_init_plugin (xine_t *xine, const void *data)

Macro Definition Documentation

AUDIO_FRAGMENT

#define AUDIO_FRAGMENT   120/1000 /* ms of audio */

CLIP_INT16

#define CLIP_INT16

(

s

)

Value:

                      ((s) < INT16_MIN) ? INT16_MIN : \
                      (((s) > INT16_MAX) ? INT16_MAX : (s))

Typedef Documentation

post_plugin_stretch_t

typedef struct post_plugin_stretch_s post_plugin_stretch_t

stretch_parameters_t

typedef struct stretch_parameters_s stretch_parameters_t

stretchscr_t

typedef struct stretchscr_s stretchscr_t

Function Documentation

get_help()

static char* get_help ( void  )

static

References _.

Referenced by stretch_open_plugin().

get_param_descr()

static xine_post_api_descr_t* get_param_descr ( void  )

static

Referenced by stretch_open_plugin().

get_parameters()

static int get_parameters ( xine_post_t *  this_gen, void *  param_gen  )

static

Referenced by stretch_open_plugin().

PARAM_ITEM()

PARAM_ITEM	(	POST_PARAM_TYPE_BOOL	,
		preserve_pitch	,
		PARAM_ITEM(	NULL,
		PARAM_ITEM(	0,
		1	,
		PARAM_ITEM(	0,
		"Preserve pitch"
	)

References _ftype_t, and RESAMPLE_MAX_CHANNELS.

set_parameters()

static int set_parameters ( xine_post_t *  this_gen, const void *  param_gen  )

static

Referenced by stretch_open_plugin().

stretch_dispose()

static void stretch_dispose ( post_plugin_t *  this_gen )

static

References _x_post_dispose().

Referenced by stretch_open_plugin().

stretch_init_plugin()

void* stretch_init_plugin	(	xine_t *	xine,
		const void *	data
	)

References N_, NULL, post_class_s::open_plugin, and stretch_open_plugin().

stretch_open_plugin()

static post_plugin_t* stretch_open_plugin ( post_class_t *  class_gen, int  inputs, xine_audio_port_t **  audio_target, xine_video_port_t **  video_target  )

static

References _x_post_init(), _x_post_intercept_audio_port(), xine_audio_port_s::close, get_help(), get_param_descr(), get_parameters(), input(), xine_post_in_s::name, post_audio_port_s::new_port, NULL, xine_audio_port_s::open, stretch_parameters_s::preserve_pitch, xine_audio_port_s::put_buffer, set_parameters(), xine_post_api_t::set_parameters, stretch_dispose(), stretch_port_close(), stretch_port_open(), stretch_port_put_buffer(), xine_list_push_back(), and XINE_POST_DATA_PARAMETERS.

Referenced by stretch_init_plugin().

stretch_port_close()

static void stretch_port_close ( xine_audio_port_t *  port_gen, xine_stream_t *  stream  )

static

References _x_freep(), _x_post_dec_usage, xine_s::clock, xine_audio_port_s::close, NULL, post_audio_port_s::original_port, post_audio_port_s::post, post_audio_port_s::stream, metronom_clock_s::unregister_scr, and xine_stream_s::xine.

Referenced by stretch_open_plugin().

stretch_port_open()

static int stretch_port_open ( xine_audio_port_t *  port_gen, xine_stream_t *  stream, uint32_t  bits, uint32_t  rate, int  mode  )

static

References _x_post_inc_usage, _x_post_rewire(), bits, post_audio_port_s::bits, xine_s::clock, metronom_clock_s::get_current_time, mode(), post_audio_port_s::mode, xine_audio_port_s::open, post_audio_port_s::original_port, post_audio_port_s::post, post_audio_port_s::rate, metronom_clock_s::register_scr, post_audio_port_s::stream, stretchscr_init(), and xine_stream_s::xine.

Referenced by stretch_open_plugin().

stretch_port_put_buffer()

static void stretch_port_put_buffer ( xine_audio_port_t *  port_gen, audio_buffer_t *  buf, xine_stream_t *  stream  )

static

References _ftype_t, _x_ao_mode2channels(), AUDIO_FRAGMENT, post_audio_port_s::bits, audio_buffer_s::extra_info, audio_buffer_s::mem, xine_stream_s::metronom, post_audio_port_s::mode, NULL, audio_buffer_s::num_frames, post_audio_port_s::original_port, post_audio_port_s::post, xine_audio_port_s::put_buffer, post_audio_port_s::rate, metronom_s::set_audio_rate, stretch_process_fragment(), stretchscr_set_speed(), triang(), and audio_buffer_s::vpts.

Referenced by stretch_open_plugin().

stretch_process_fragment()

static void stretch_process_fragment ( post_audio_port_t *  port, xine_stream_t *  stream, extra_info_t *  extra_info  )

static

References _ftype_t, _x_audio_out_resample_mono(), _x_audio_out_resample_stereo(), _x_extra_info_merge(), post_audio_port_s::bits, CLIP_INT16, xine_audio_port_s::get_buffer, post_audio_port_s::mode, audio_buffer_s::num_frames, post_audio_port_s::original_port, post_audio_port_s::post, xine_audio_port_s::put_buffer, and post_audio_port_s::rate.

Referenced by stretch_port_put_buffer().

stretchscr_adjust()

static void stretchscr_adjust ( scr_plugin_t *  scr, int64_t  vpts  )

static

References NULL, and xine_monotonic_clock().

Referenced by stretchscr_init().

stretchscr_exit()

static void stretchscr_exit ( scr_plugin_t *  scr )

static

Referenced by stretchscr_init().

stretchscr_get_current()

static int64_t stretchscr_get_current ( scr_plugin_t *  scr )

static

References NULL, and xine_monotonic_clock().

Referenced by stretchscr_init().

stretchscr_get_priority()

static int stretchscr_get_priority ( scr_plugin_t *  scr )

static

References stretchscr_s::scr.

Referenced by stretchscr_init().

stretchscr_init()

static stretchscr_t* stretchscr_init ( double *  stretch_factor )

static

References NULL, stretchscr_adjust(), stretchscr_exit(), stretchscr_get_current(), stretchscr_get_priority(), stretchscr_set_speed(), stretchscr_start(), and XINE_SPEED_PAUSE.

Referenced by stretch_port_open().

stretchscr_set_pivot()

static void stretchscr_set_pivot ( stretchscr_t *  this )

static

References NULL, and xine_monotonic_clock().

Referenced by stretchscr_set_speed().

stretchscr_set_speed()

static int stretchscr_set_speed ( scr_plugin_t *  scr, int  speed  )

static

References stretchscr_set_pivot(), and XINE_FINE_SPEED_NORMAL.

Referenced by stretch_port_put_buffer(), stretchscr_init(), and stretchscr_start().

stretchscr_start()

static void stretchscr_start ( scr_plugin_t *  scr, int64_t  start_vpts  )

static

References NULL, stretchscr_set_speed(), XINE_FINE_SPEED_NORMAL, and xine_monotonic_clock().

Referenced by stretchscr_init().