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/*
* Copyright (C) 2003-2011 The Music Player Daemon Project
* http://www.musicpd.org
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "player_control.h"
#include "decoder_control.h"
#include "path.h"
#include "log.h"
#include "tag.h"
#include "song.h"
#include "idle.h"
#include "pcm_volume.h"
#include "main.h"
#include <assert.h>
#include <stdio.h>
#include <math.h>
static void
pc_enqueue_song_locked(struct player_control *pc, struct song *song);
struct player_control *
pc_new(unsigned buffer_chunks, unsigned int buffered_before_play)
{
struct player_control *pc = g_new0(struct player_control, 1);
pc->buffer_chunks = buffer_chunks;
pc->buffered_before_play = buffered_before_play;
pc->mutex = g_mutex_new();
pc->cond = g_cond_new();
pc->command = PLAYER_COMMAND_NONE;
pc->error_type = PLAYER_ERROR_NONE;
pc->state = PLAYER_STATE_STOP;
pc->cross_fade_seconds = 0;
pc->mixramp_db = 0;
pc->mixramp_delay_seconds = nanf("");
return pc;
}
void
pc_free(struct player_control *pc)
{
if (pc->next_song != NULL)
song_free(pc->next_song);
g_cond_free(pc->cond);
g_mutex_free(pc->mutex);
g_free(pc);
}
void
player_wait_decoder(struct player_control *pc, struct decoder_control *dc)
{
assert(pc != NULL);
assert(dc != NULL);
assert(dc->client_cond == pc->cond);
/* during this function, the decoder lock is held, because
we're waiting for the decoder thread */
g_cond_wait(pc->cond, dc->mutex);
}
static void
player_command_wait_locked(struct player_control *pc)
{
while (pc->command != PLAYER_COMMAND_NONE)
g_cond_wait(main_cond, pc->mutex);
}
static void
player_command_locked(struct player_control *pc, enum player_command cmd)
{
assert(pc->command == PLAYER_COMMAND_NONE);
pc->command = cmd;
player_signal(pc);
player_command_wait_locked(pc);
}
static void
player_command(struct player_control *pc, enum player_command cmd)
{
player_lock(pc);
player_command_locked(pc, cmd);
player_unlock(pc);
}
void
pc_play(struct player_control *pc, struct song *song)
{
assert(song != NULL);
player_lock(pc);
if (pc->state != PLAYER_STATE_STOP)
player_command_locked(pc, PLAYER_COMMAND_STOP);
assert(pc->next_song == NULL);
pc_enqueue_song_locked(pc, song);
assert(pc->next_song == NULL);
player_unlock(pc);
idle_add(IDLE_PLAYER);
}
void
pc_cancel(struct player_control *pc)
{
player_command(pc, PLAYER_COMMAND_CANCEL);
assert(pc->next_song == NULL);
}
void
pc_stop(struct player_control *pc)
{
player_command(pc, PLAYER_COMMAND_CLOSE_AUDIO);
assert(pc->next_song == NULL);
idle_add(IDLE_PLAYER);
}
void
pc_update_audio(struct player_control *pc)
{
player_command(pc, PLAYER_COMMAND_UPDATE_AUDIO);
}
void
pc_kill(struct player_control *pc)
{
assert(pc->thread != NULL);
player_command(pc, PLAYER_COMMAND_EXIT);
g_thread_join(pc->thread);
pc->thread = NULL;
idle_add(IDLE_PLAYER);
}
void
pc_pause(struct player_control *pc)
{
player_lock(pc);
if (pc->state != PLAYER_STATE_STOP) {
player_command_locked(pc, PLAYER_COMMAND_PAUSE);
idle_add(IDLE_PLAYER);
}
player_unlock(pc);
}
static void
pc_pause_locked(struct player_control *pc)
{
if (pc->state != PLAYER_STATE_STOP) {
player_command_locked(pc, PLAYER_COMMAND_PAUSE);
idle_add(IDLE_PLAYER);
}
}
void
pc_set_pause(struct player_control *pc, bool pause_flag)
{
player_lock(pc);
switch (pc->state) {
case PLAYER_STATE_STOP:
break;
case PLAYER_STATE_PLAY:
if (pause_flag)
pc_pause_locked(pc);
break;
case PLAYER_STATE_PAUSE:
if (!pause_flag)
pc_pause_locked(pc);
break;
}
player_unlock(pc);
}
void
pc_get_status(struct player_control *pc, struct player_status *status)
{
player_lock(pc);
player_command_locked(pc, PLAYER_COMMAND_REFRESH);
status->state = pc->state;
if (pc->state != PLAYER_STATE_STOP) {
status->bit_rate = pc->bit_rate;
status->audio_format = pc->audio_format;
status->total_time = pc->total_time;
status->elapsed_time = pc->elapsed_time;
}
player_unlock(pc);
}
void
pc_set_error(struct player_control *pc, enum player_error type,
GError *error)
{
assert(pc != NULL);
assert(type != PLAYER_ERROR_NONE);
assert(error != NULL);
if (pc->error_type != PLAYER_ERROR_NONE)
g_error_free(pc->error);
pc->error_type = type;
pc->error = error;
}
void
pc_clear_error(struct player_control *pc)
{
player_lock(pc);
if (pc->error_type != PLAYER_ERROR_NONE) {
pc->error_type = PLAYER_ERROR_NONE;
g_error_free(pc->error);
}
player_unlock(pc);
}
char *
pc_get_error_message(struct player_control *pc)
{
player_lock(pc);
char *message = pc->error_type != PLAYER_ERROR_NONE
? g_strdup(pc->error->message)
: NULL;
player_unlock(pc);
return message;
}
static void
pc_enqueue_song_locked(struct player_control *pc, struct song *song)
{
assert(song != NULL);
assert(pc->next_song == NULL);
pc->next_song = song;
player_command_locked(pc, PLAYER_COMMAND_QUEUE);
}
void
pc_enqueue_song(struct player_control *pc, struct song *song)
{
assert(song != NULL);
player_lock(pc);
pc_enqueue_song_locked(pc, song);
player_unlock(pc);
}
bool
pc_seek(struct player_control *pc, struct song *song, float seek_time)
{
assert(song != NULL);
player_lock(pc);
if (pc->next_song != NULL)
song_free(pc->next_song);
pc->next_song = song;
pc->seek_where = seek_time;
player_command_locked(pc, PLAYER_COMMAND_SEEK);
player_unlock(pc);
assert(pc->next_song == NULL);
idle_add(IDLE_PLAYER);
return true;
}
float
pc_get_cross_fade(const struct player_control *pc)
{
return pc->cross_fade_seconds;
}
void
pc_set_cross_fade(struct player_control *pc, float cross_fade_seconds)
{
if (cross_fade_seconds < 0)
cross_fade_seconds = 0;
pc->cross_fade_seconds = cross_fade_seconds;
idle_add(IDLE_OPTIONS);
}
void
pc_set_mixramp_db(struct player_control *pc, float mixramp_db)
{
pc->mixramp_db = mixramp_db;
idle_add(IDLE_OPTIONS);
}
void
pc_set_mixramp_delay(struct player_control *pc, float mixramp_delay_seconds)
{
pc->mixramp_delay_seconds = mixramp_delay_seconds;
idle_add(IDLE_OPTIONS);
}
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