sound.c File Reference

#include "_hard_config.h"
#include "sound.h"
#include <ao/ao.h>
#include <mpg123.h>
#include "cache.h"
#include "helper.h"
#include "http.h"
#include "log.h"
#include "network/network.h"
#include "soundcloud.h"
#include "track.h"
#include "tui.h"
#include "state.h"

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Macros
#define	BUFFER_SIZE   256 * 1024 * 1024
#define	SEEKPOS_NONE   ((unsigned int) ~0)
#define	SEM_SET_TO_ZERO(S)   {int sval; while(!sem_getvalue(&S, &sval) && sval) {sem_wait(&S);}}

Functions
static char *	ao_strerror (int err)
static mpg123_handle *	mpg123_reinit (mpg123_handle *mh)
	Reinitialize libmpg123. More...
static void *	_thread_io_function (void *unused)
	main function for IO thread. More...
static void *	_thread_play_function (void *unused)
	main function for playback thread. More...
bool	sound_init (void(*_time_callback)(int))
	Global initialization of sound. More...
bool	sound_finalize ()
bool	sound_stop ()
	Stop playback of current track. More...
unsigned int	sound_get_current_pos ()
void	sound_seek (unsigned int pos)
bool	sound_play (struct track *_track)
	Start playback of track. More...

Variables
static sem_t	sem_io
static sem_t	sem_play
static sem_t	sem_stopped
static pthread_t	thread_io
static pthread_t	thread_play
static sem_t	sem_data_available
static mpg123_handle *	mh = NULL
static volatile int	buffer_pos = 0
static volatile char *	buffer = NULL
static volatile struct track *	track = NULL
static volatile unsigned int	current_pos = 0
static volatile unsigned int	seek_to_pos = SEEKPOS_NONE
static volatile size_t	track_size = 0
static volatile bool	stopped = false
static volatile bool	terminate = false
static void(*	time_callback )(int)

Macro Definition Documentation

#define BUFFER_SIZE   256 * 1024 * 1024

#define SEEKPOS_NONE   ((unsigned int) ~0)

#define SEM_SET_TO_ZERO

(

S

)

{int sval; while(!sem_getvalue(&S, &sval) && sval) {sem_wait(&S);}}

Function Documentation

static void* _thread_io_function ( void *  unused )

static

main function for IO thread.

Parameters

unused

Unused parameter (never read), required due to pthread interface

Returns

NULL Unused return value, required due to pthread interface

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static void* _thread_play_function ( void *  unused )

static

main function for playback thread.

Parameters

unused

Unused parameter (never read), required due to pthread interface

Returns

NULL Unused return value, required due to pthread interface

Todo:

'quiet' is not quiet at all...

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static char* ao_strerror ( int  err )

static

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static mpg123_handle* mpg123_reinit ( mpg123_handle *  mh )

static

Reinitialize libmpg123.

Parameters

mh	The old handle to close (may be NULL)

Returns

A pointer to the new handle (or NULL in case of failure)

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bool sound_finalize

(

)

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unsigned int sound_get_current_pos

(

)

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bool sound_init

(

void(*)(int)

time_callback

)

Global initialization of sound.

This function is required to be called prior to the first call sound_play() and does several internal initializations.

Parameters

time_callback

callback function receiving the elapsed seconds as parameter

Returns

true in case of success, false otherwise

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bool sound_play

(

struct track *

track

)

Start playback of track.

This function is required to be called prior to the first call sound_play() and does several internal initializations.

Parameters

track

the track to play

Returns

true in case of success, false otherwise

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void sound_seek

(

unsigned int

pos

)

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bool sound_stop

(

)

Stop playback of current track.

Returns

true in case of success, false otherwise

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Variable Documentation

volatile char* buffer = NULL

static

volatile int buffer_pos = 0

static

volatile unsigned int current_pos = 0

static

mpg123_handle* mh = NULL

static

volatile unsigned int seek_to_pos = SEEKPOS_NONE

static

sem_t sem_data_available

static

sem_t sem_io

static

sem_t sem_play

static

sem_t sem_stopped

static

volatile bool stopped = false

static

volatile bool terminate = false

static

pthread_t thread_io

static

pthread_t thread_play

static

void(* time_callback) (int)

static

volatile struct track* track = NULL

static

volatile size_t track_size = 0

static

The amount of data for the whole track. As soon as we reach this position during playback the end of track has been reached