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audio.c
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/*
* MOC - music on console
* Copyright (C) 2004-2006 Damian Pietras <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Contributors:
* - Kamil Tarkowski <[email protected]> - "previous" request
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <pthread.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include <assert.h>
#define DEBUG
#include "common.h"
#include "server.h"
#include "decoder.h"
#include "playlist.h"
#include "log.h"
#include "lists.h"
#ifdef HAVE_PULSE
# include "pulse.h"
#endif
#ifdef HAVE_OSS
# include "oss.h"
#endif
#ifdef HAVE_SNDIO
# include "sndio_out.h"
#endif
#ifdef HAVE_ALSA
# include "alsa.h"
#endif
#ifndef NDEBUG
# include "null_out.h"
#endif
#ifdef HAVE_JACK
# include "jack.h"
#endif
#include "softmixer.h"
#include "equalizer.h"
#include "out_buf.h"
#include "protocol.h"
#include "options.h"
#include "player.h"
#include "audio.h"
#include "files.h"
#include "io.h"
#include "audio_conversion.h"
static pthread_t playing_thread = 0; /* tid of play thread */
static int play_thread_running = 0;
/* currently played file */
static int curr_playing = -1;
/* file we played before playing songs from queue */
static char *before_queue_fname = NULL;
static char *curr_playing_fname = NULL;
/* This flag is set 1 if audio_play() was called with nonempty queue,
* so we know that when the queue is empty, we should play the regular
* playlist from the beginning. */
static int started_playing_in_queue = 0;
static pthread_mutex_t curr_playing_mut = PTHREAD_MUTEX_INITIALIZER;
static struct out_buf out_buf;
static struct hw_funcs hw;
static struct output_driver_caps hw_caps; /* capabilities of the output
driver */
/* Player state. */
static int state = STATE_STOP;
static int prev_state = STATE_STOP;
/* requests for playing thread */
static int stop_playing = 0;
static int play_next = 0;
static int play_prev = 0;
static pthread_mutex_t request_mut = PTHREAD_MUTEX_INITIALIZER;
/* Playlists. */
static struct plist playlist;
static struct plist shuffled_plist;
static struct plist queue;
static struct plist *curr_plist; /* currently used playlist */
static pthread_mutex_t plist_mut = PTHREAD_MUTEX_INITIALIZER;
/* Is the audio device opened? */
static int audio_opened = 0;
/* Current sound parameters (with which the device is opened). */
static struct sound_params driver_sound_params = { 0, 0, 0 };
/* Sound parameters requested by the decoder. */
static struct sound_params req_sound_params = { 0, 0, 0 };
static struct audio_conversion sound_conv;
static int need_audio_conversion = 0;
/* URL of the last played stream. Used to fake pause/unpause of internet
* streams. Protected by curr_playing_mut. */
static char *last_stream_url = NULL;
static int current_mixer = 0;
/* Check if the two sample rates don't differ so much that we can't play. */
#define sample_rate_compat(sound, device) ((device) * 1.05 >= sound \
&& (device) * 0.95 <= sound)
/* Make a human readable description of the sound sample format(s).
* Put the description in msg which is of size buf_size.
* Return msg. */
char *sfmt_str (const long format, char *msg, const size_t buf_size)
{
assert (sound_format_ok(format));
assert (buf_size > 0);
msg[0] = 0;
if (format & SFMT_S8)
strncat (msg, ", 8-bit signed", buf_size - strlen(msg) - 1);
if (format & SFMT_U8)
strncat (msg, ", 8-bit unsigned", buf_size - strlen(msg) - 1);
if (format & SFMT_S16)
strncat (msg, ", 16-bit signed", buf_size - strlen(msg) - 1);
if (format & SFMT_U16)
strncat (msg, ", 16-bit unsigned", buf_size - strlen(msg) - 1);
if (format & SFMT_S32)
strncat (msg, ", 24-bit signed (as 32-bit samples)",
buf_size - strlen(msg) - 1);
if (format & SFMT_U32)
strncat (msg, ", 24-bit unsigned (as 32-bit samples)",
buf_size - strlen(msg) - 1);
if (format & SFMT_FLOAT)
strncat (msg, ", float",
buf_size - strlen(msg) - 1);
if (format & SFMT_LE)
strncat (msg, " little-endian", buf_size - strlen(msg) - 1);
else if (format & SFMT_BE)
strncat (msg, " big-endian", buf_size - strlen(msg) - 1);
if (format & SFMT_NE)
strncat (msg, " (native)", buf_size - strlen(msg) - 1);
/* skip first ", " */
if (msg[0])
memmove (msg, msg + 2, strlen(msg) + 1);
return msg;
}
/* Return != 0 if fmt1 and fmt2 have the same sample width. */
int sfmt_same_bps (const long fmt1, const long fmt2)
{
if (fmt1 & (SFMT_S8 | SFMT_U8)
&& fmt2 & (SFMT_S8 | SFMT_U8))
return 1;
if (fmt1 & (SFMT_S16 | SFMT_U16)
&& fmt2 & (SFMT_S16 | SFMT_U16))
return 1;
if (fmt1 & (SFMT_S32 | SFMT_U32)
&& fmt2 & (SFMT_S32 | SFMT_U32))
return 1;
if (fmt1 & fmt2 & SFMT_FLOAT)
return 1;
return 0;
}
/* Return the best matching sample format for the requested format and
* available format mask. */
static long sfmt_best_matching (const long formats_with_endian,
const long req_with_endian)
{
long formats = formats_with_endian & SFMT_MASK_FORMAT;
long req = req_with_endian & SFMT_MASK_FORMAT;
long best = 0;
#ifdef DEBUG
char fmt_name1[SFMT_STR_MAX];
char fmt_name2[SFMT_STR_MAX];
#endif
if (formats & req)
best = req;
else if (req == SFMT_S8 || req == SFMT_U8) {
if (formats & SFMT_S8)
best = SFMT_S8;
else if (formats & SFMT_U8)
best = SFMT_U8;
else if (formats & SFMT_S16)
best = SFMT_S16;
else if (formats & SFMT_U16)
best = SFMT_U16;
else if (formats & SFMT_S32)
best = SFMT_S32;
else if (formats & SFMT_U32)
best = SFMT_U32;
else if (formats & SFMT_FLOAT)
best = SFMT_FLOAT;
}
else if (req == SFMT_S16 || req == SFMT_U16) {
if (formats & SFMT_S16)
best = SFMT_S16;
else if (formats & SFMT_U16)
best = SFMT_U16;
else if (formats & SFMT_S32)
best = SFMT_S32;
else if (formats & SFMT_U32)
best = SFMT_U32;
else if (formats & SFMT_FLOAT)
best = SFMT_FLOAT;
else if (formats & SFMT_S8)
best = SFMT_S8;
else if (formats & SFMT_U8)
best = SFMT_U8;
}
else if (req == SFMT_S32 || req == SFMT_U32 || req == SFMT_FLOAT) {
if (formats & SFMT_S32)
best = SFMT_S32;
else if (formats & SFMT_U32)
best = SFMT_U32;
else if (formats & SFMT_S16)
best = SFMT_S16;
else if (formats & SFMT_U16)
best = SFMT_U16;
else if (formats & SFMT_FLOAT)
best = SFMT_FLOAT;
else if (formats & SFMT_S8)
best = SFMT_S8;
else if (formats & SFMT_U8)
best = SFMT_U8;
}
assert (best != 0);
if (!(best & (SFMT_S8 | SFMT_U8))) {
if ((formats_with_endian & SFMT_LE)
&& (formats_with_endian & SFMT_BE))
best |= SFMT_NE;
else
best |= formats_with_endian & SFMT_MASK_ENDIANNESS;
}
#ifdef DEBUG
debug ("Chose %s as the best matching %s",
sfmt_str(best, fmt_name1, sizeof(fmt_name1)),
sfmt_str(req_with_endian, fmt_name2, sizeof(fmt_name2)));
#endif
return best;
}
/* Return the number of bytes per sample for the given format. */
int sfmt_Bps (const long format)
{
int Bps = -1;
switch (format & SFMT_MASK_FORMAT) {
case SFMT_S8:
case SFMT_U8:
Bps = 1;
break;
case SFMT_S16:
case SFMT_U16:
Bps = 2;
break;
case SFMT_S32:
case SFMT_U32:
Bps = 4;
break;
case SFMT_FLOAT:
Bps = sizeof (float);
break;
}
assert (Bps > 0);
return Bps;
}
/* Move to the next file depending on the options set, the user
* request and whether or not there are files in the queue. */
static void go_to_another_file ()
{
int shuffle = options_get_int ("Shuffle");
int go_next = (play_next || options_get_int("AutoNext"));
int curr_playing_curr_pos;
/* XXX: Shouldn't play_next be protected by mutex? */
LOCK (curr_playing_mut);
LOCK (plist_mut);
/* If we move forward in the playlist and there are some songs in
* the queue, then play them. */
if (plist_count(&queue) && go_next) {
logit ("Playing file from queue");
if (!before_queue_fname && curr_playing_fname)
before_queue_fname = xstrdup (curr_playing_fname);
curr_plist = &queue;
curr_playing = plist_next (&queue, -1);
server_queue_pop (queue.items[curr_playing].file);
plist_delete (&queue, curr_playing);
}
else {
/* If we just finished playing files from the queue and the
* appropriate option is set, continue with the file played
* before playing the queue. */
if (before_queue_fname && options_get_int("QueueNextSongReturn")) {
free (curr_playing_fname);
curr_playing_fname = before_queue_fname;
before_queue_fname = NULL;
}
if (shuffle) {
curr_plist = &shuffled_plist;
if (plist_count(&playlist)
&& !plist_count(&shuffled_plist)) {
plist_cat (&shuffled_plist, &playlist);
plist_shuffle (&shuffled_plist);
if (curr_playing_fname)
plist_swap_first_fname (&shuffled_plist,
curr_playing_fname);
}
}
else
curr_plist = &playlist;
curr_playing_curr_pos = plist_find_fname (curr_plist,
curr_playing_fname);
/* If we came from the queue and the last file in
* queue wasn't in the playlist, we try to revert to
* the QueueNextSongReturn = 1 behaviour. */
if (curr_playing_curr_pos == -1 && before_queue_fname) {
curr_playing_curr_pos = plist_find_fname (curr_plist,
before_queue_fname);
}
if (play_prev && plist_count(curr_plist)) {
logit ("Playing previous...");
if (curr_playing_curr_pos == -1
|| started_playing_in_queue) {
curr_playing = plist_prev (curr_plist, -1);
started_playing_in_queue = 0;
}
else
curr_playing = plist_prev (curr_plist,
curr_playing_curr_pos);
if (curr_playing == -1) {
if (options_get_int("Repeat"))
curr_playing = plist_last (curr_plist);
logit ("Beginning of the list.");
}
else
logit ("Previous item.");
}
else if (go_next && plist_count(curr_plist)) {
logit ("Playing next...");
if (curr_playing_curr_pos == -1
|| started_playing_in_queue) {
curr_playing = plist_next (curr_plist, -1);
started_playing_in_queue = 0;
}
else
curr_playing = plist_next (curr_plist,
curr_playing_curr_pos);
if (curr_playing == -1 && options_get_int("Repeat")) {
if (shuffle) {
plist_clear (&shuffled_plist);
plist_cat (&shuffled_plist, &playlist);
plist_shuffle (&shuffled_plist);
}
curr_playing = plist_next (curr_plist, -1);
logit ("Going back to the first item.");
}
else if (curr_playing == -1)
logit ("End of the list");
else
logit ("Next item");
}
else if (!options_get_int("Repeat")) {
curr_playing = -1;
}
else
debug ("Repeating file");
if (before_queue_fname)
free (before_queue_fname);
before_queue_fname = NULL;
}
UNLOCK (plist_mut);
UNLOCK (curr_playing_mut);
}
static void *play_thread (void *unused ATTR_UNUSED)
{
logit ("Entering playing thread");
while (curr_playing != -1) {
char *file;
LOCK (plist_mut);
file = plist_get_file (curr_plist, curr_playing);
UNLOCK (plist_mut);
play_next = 0;
play_prev = 0;
if (file) {
int next;
char *next_file;
LOCK (curr_playing_mut);
LOCK (plist_mut);
logit ("Playing item %d: %s", curr_playing, file);
if (curr_playing_fname)
free (curr_playing_fname);
curr_playing_fname = xstrdup (file);
out_buf_time_set (&out_buf, 0.0);
next = plist_next (curr_plist, curr_playing);
next_file = next != -1 ? plist_get_file (curr_plist, next) : NULL;
UNLOCK (plist_mut);
UNLOCK (curr_playing_mut);
player (file, next_file, &out_buf);
if (next_file)
free (next_file);
set_info_rate (0);
set_info_bitrate (0);
set_info_channels (1);
out_buf_time_set (&out_buf, 0.0);
free (file);
}
LOCK (curr_playing_mut);
if (last_stream_url) {
free (last_stream_url);
last_stream_url = NULL;
}
UNLOCK (curr_playing_mut);
if (stop_playing) {
LOCK (curr_playing_mut);
curr_playing = -1;
UNLOCK (curr_playing_mut);
logit ("stopped");
}
else
go_to_another_file ();
}
prev_state = state;
state = STATE_STOP;
state_change ();
if (curr_playing_fname) {
free (curr_playing_fname);
curr_playing_fname = NULL;
}
audio_close ();
logit ("Exiting");
return NULL;
}
void audio_reset ()
{
if (hw.reset)
hw.reset ();
}
void audio_stop ()
{
int rc;
if (play_thread_running) {
logit ("audio_stop()");
LOCK (request_mut);
stop_playing = 1;
UNLOCK (request_mut);
player_stop ();
logit ("pthread_join (playing_thread, NULL)");
rc = pthread_join (playing_thread, NULL);
if (rc != 0)
logit ("pthread_join() failed: %s", strerror (rc));
playing_thread = 0;
play_thread_running = 0;
stop_playing = 0;
logit ("done stopping");
}
else if (state == STATE_PAUSE) {
/* Paused internet stream - we are in fact stopped already. */
if (curr_playing_fname) {
free (curr_playing_fname);
curr_playing_fname = NULL;
}
prev_state = state;
state = STATE_STOP;
state_change ();
}
}
/* Start playing from the file fname. If fname is an empty string,
* start playing from the first file on the list. */
void audio_play (const char *fname)
{
int rc;
audio_stop ();
player_reset ();
LOCK (curr_playing_mut);
LOCK (plist_mut);
/* If we have songs in the queue and fname is empty string, start
* playing file from the queue. */
if (plist_count(&queue) && !(*fname)) {
curr_plist = &queue;
curr_playing = plist_next (&queue, -1);
/* remove the file from queue */
server_queue_pop (queue.items[curr_playing].file);
plist_delete (curr_plist, curr_playing);
started_playing_in_queue = 1;
}
else if (options_get_int("Shuffle")) {
plist_clear (&shuffled_plist);
plist_cat (&shuffled_plist, &playlist);
plist_shuffle (&shuffled_plist);
plist_swap_first_fname (&shuffled_plist, fname);
curr_plist = &shuffled_plist;
if (*fname)
curr_playing = plist_find_fname (curr_plist, fname);
else if (plist_count(curr_plist)) {
curr_playing = plist_next (curr_plist, -1);
}
else
curr_playing = -1;
}
else {
curr_plist = &playlist;
if (*fname)
curr_playing = plist_find_fname (curr_plist, fname);
else if (plist_count(curr_plist))
curr_playing = plist_next (curr_plist, -1);
else
curr_playing = -1;
}
rc = pthread_create (&playing_thread, NULL, play_thread,
curr_playing != -1 ? NULL : (void *)fname);
if (rc != 0)
error ("Can't create thread: %s", strerror (rc));
play_thread_running = 1;
UNLOCK (plist_mut);
UNLOCK (curr_playing_mut);
}
void audio_next ()
{
if (play_thread_running) {
play_next = 1;
player_stop ();
}
}
void audio_prev ()
{
if (play_thread_running) {
play_prev = 1;
player_stop ();
}
}
void audio_pause ()
{
LOCK (curr_playing_mut);
LOCK (plist_mut);
if (curr_playing != -1) {
char *sname = plist_get_file (curr_plist, curr_playing);
if (file_type(sname) == F_URL) {
UNLOCK (curr_playing_mut);
UNLOCK (plist_mut);
audio_stop ();
LOCK (curr_playing_mut);
LOCK (plist_mut);
if (last_stream_url)
free (last_stream_url);
last_stream_url = xstrdup (sname);
/* Pretend that we are paused on this. */
curr_playing_fname = xstrdup (sname);
}
else
out_buf_pause (&out_buf);
prev_state = state;
state = STATE_PAUSE;
state_change ();
free (sname);
}
UNLOCK (plist_mut);
UNLOCK (curr_playing_mut);
}
void audio_unpause ()
{
LOCK (curr_playing_mut);
if (last_stream_url && file_type(last_stream_url) == F_URL) {
char *url = xstrdup (last_stream_url);
UNLOCK (curr_playing_mut);
audio_play (url);
free (url);
}
else if (curr_playing != -1) {
out_buf_unpause (&out_buf);
prev_state = state;
state = STATE_PLAY;
UNLOCK (curr_playing_mut);
state_change ();
}
else
UNLOCK (curr_playing_mut);
}
static void reset_sound_params (struct sound_params *params)
{
params->rate = 0;
params->channels = 0;
params->fmt = 0;
}
/* Return 0 on error. If sound params == NULL, open the device using
* the previous parameters. */
int audio_open (struct sound_params *sound_params)
{
int res;
static struct sound_params last_params = { 0, 0, 0 };
if (!sound_params)
sound_params = &last_params;
else
last_params = *sound_params;
assert (sound_format_ok(sound_params->fmt));
if (audio_opened) {
if (sound_params_eq(req_sound_params, *sound_params)) {
if (audio_get_bps() >= 88200) {
logit ("Audio device already opened with such parameters.");
return 1;
}
/* Not closing the device would cause that much
* sound from the previous file to stay in the buffer
* and the user will hear old data, so close it. */
logit ("Reopening device due to low bps.");
}
audio_close ();
}
req_sound_params = *sound_params;
/* Set driver_sound_params to parameters supported by the driver that
* are nearly the requested parameters. */
if (options_get_int("ForceSampleRate")) {
driver_sound_params.rate = options_get_int("ForceSampleRate");
logit ("Setting forced driver sample rate to %dHz",
driver_sound_params.rate);
}
else
driver_sound_params.rate = req_sound_params.rate;
driver_sound_params.fmt = sfmt_best_matching (hw_caps.formats,
req_sound_params.fmt);
/* number of channels */
driver_sound_params.channels = CLAMP(hw_caps.min_channels,
req_sound_params.channels,
hw_caps.max_channels);
res = hw.open (&driver_sound_params);
if (res) {
char fmt_name[SFMT_STR_MAX];
driver_sound_params.rate = hw.get_rate ();
if (driver_sound_params.fmt != req_sound_params.fmt
|| driver_sound_params.channels
!= req_sound_params.channels
|| (!sample_rate_compat(
req_sound_params.rate,
driver_sound_params.rate))) {
logit ("Conversion of the sound is needed.");
if (!audio_conv_new (&sound_conv, &req_sound_params,
&driver_sound_params)) {
hw.close ();
reset_sound_params (&req_sound_params);
return 0;
}
need_audio_conversion = 1;
}
audio_opened = 1;
logit ("Requested sound parameters: %s, %d channels, %dHz",
sfmt_str(req_sound_params.fmt, fmt_name, sizeof(fmt_name)),
req_sound_params.channels,
req_sound_params.rate);
logit ("Driver sound parameters: %s, %d channels, %dHz",
sfmt_str(driver_sound_params.fmt, fmt_name, sizeof(fmt_name)),
driver_sound_params.channels,
driver_sound_params.rate);
}
return res;
}
int audio_send_buf (const char *buf, const size_t size)
{
size_t out_data_len = size;
int res;
char *converted = NULL;
if (need_audio_conversion)
converted = audio_conv (&sound_conv, buf, size, &out_data_len);
if (need_audio_conversion && converted)
res = out_buf_put (&out_buf, converted, out_data_len);
else if (!need_audio_conversion)
res = out_buf_put (&out_buf, buf, size);
else
res = 0;
if (converted)
free (converted);
return res;
}
/* Get the current audio format bytes per frame value.
* May return 0 if the audio device is closed. */
int audio_get_bpf ()
{
return driver_sound_params.channels
* (driver_sound_params.fmt ? sfmt_Bps(driver_sound_params.fmt)
: 0);
}
/* Get the current audio format bytes per second value.
* May return 0 if the audio device is closed. */
int audio_get_bps ()
{
return driver_sound_params.rate * audio_get_bpf ();
}
int audio_get_buf_fill ()
{
return hw.get_buff_fill ();
}
int audio_send_pcm (const char *buf, const size_t size)
{
char *softmixed = NULL;
char *equalized = NULL;
if (equalizer_is_active ())
{
equalized = xmalloc (size);
memcpy (equalized, buf, size);
equalizer_process_buffer (equalized, size, &driver_sound_params);
buf = equalized;
}
if (softmixer_is_active ())
{
if (equalized)
{
softmixed = equalized;
}
else
{
softmixed = xmalloc (size);
memcpy (softmixed, buf, size);
}
softmixer_process_buffer (softmixed, size, &driver_sound_params);
buf = softmixed;
}
int played;
played = hw.play (buf, size);
if (played < 0)
fatal ("Audio output error!");
if (softmixed && !equalized)
free (softmixed);
if (equalized)
free (equalized);
return played;
}
/* Get current time of the song in seconds. */
int audio_get_time ()
{
return state != STATE_STOP ? out_buf_time_get (&out_buf) : 0;
}
void audio_close ()
{
if (audio_opened) {
reset_sound_params (&req_sound_params);
reset_sound_params (&driver_sound_params);
hw.close ();
if (need_audio_conversion) {
audio_conv_destroy (&sound_conv);
need_audio_conversion = 0;
}
audio_opened = 0;
}
}
/* Try to initialize drivers from the list and fill funcs with
* those of the first working driver. */
static void find_working_driver (lists_t_strs *drivers, struct hw_funcs *funcs)
{
int ix;
memset (funcs, 0, sizeof(*funcs));
for (ix = 0; ix < lists_strs_size (drivers); ix += 1) {
const char *name;
name = lists_strs_at (drivers, ix);
#ifdef HAVE_SNDIO
if (!strcasecmp(name, "sndio")) {
sndio_funcs (funcs);
printf ("Trying SNDIO...\n");
if (funcs->init(&hw_caps))
return;
}
#endif
#ifdef HAVE_PULSE
if (!strcasecmp(name, "pulseaudio")) {
pulse_funcs (funcs);
printf ("Trying PulseAudio...\n");
if (funcs->init(&hw_caps))
return;
}
#endif
#ifdef HAVE_OSS
if (!strcasecmp(name, "oss")) {
oss_funcs (funcs);
printf ("Trying OSS...\n");
if (funcs->init(&hw_caps))
return;
}
#endif
#ifdef HAVE_ALSA
if (!strcasecmp(name, "alsa")) {
alsa_funcs (funcs);
printf ("Trying ALSA...\n");
if (funcs->init(&hw_caps))
return;
}
#endif
#ifdef HAVE_JACK
if (!strcasecmp(name, "jack")) {
moc_jack_funcs (funcs);
printf ("Trying JACK...\n");
if (funcs->init(&hw_caps))
return;
}
#endif
#ifndef NDEBUG
if (!strcasecmp(name, "null")) {
null_funcs (funcs);
printf ("Trying NULL...\n");
if (funcs->init(&hw_caps))
return;
}
#endif
}
fatal ("No valid sound driver!");
}
static void print_output_capabilities (const struct output_driver_caps *caps)
{
char fmt_name[SFMT_STR_MAX];
logit ("Sound driver capabilities: channels %d - %d, formats: %s",
caps->min_channels, caps->max_channels,
sfmt_str(caps->formats, fmt_name, sizeof(fmt_name)));
}
void audio_initialize ()
{
find_working_driver (options_get_list ("SoundDriver"), &hw);
assert (hw_caps.max_channels >= hw_caps.min_channels);
assert (sound_format_ok(hw_caps.formats));
print_output_capabilities (&hw_caps);
if (!options_get_int("Allow24bitOutput")
&& hw_caps.formats & (SFMT_S32 | SFMT_U32)) {
logit ("Disabling 24bit modes because Allow24bitOutput is set to no.");
hw_caps.formats &= ~(SFMT_S32 | SFMT_U32);
}
out_buf_init (&out_buf, options_get_int("OutputBuffer") * 1024);
softmixer_init();
equalizer_init();
plist_init (&playlist);
plist_init (&shuffled_plist);
plist_init (&queue);
player_init ();
}
void audio_exit ()
{
int rc;
audio_stop ();
if (hw.shutdown)
hw.shutdown ();
out_buf_destroy (&out_buf);
plist_free (&playlist);
plist_free (&shuffled_plist);
plist_free (&queue);
player_cleanup ();
rc = pthread_mutex_destroy (&curr_playing_mut);
if (rc != 0)
logit ("Can't destroy curr_playing_mut: %s", strerror (rc));
rc = pthread_mutex_destroy (&plist_mut);
if (rc != 0)
logit ("Can't destroy plist_mut: %s", strerror (rc));
rc = pthread_mutex_destroy (&request_mut);
if (rc != 0)