338 lines
6.6 KiB
C++
338 lines
6.6 KiB
C++
/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "PlayerControl.hxx"
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#include "Idle.hxx"
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#include "song.h"
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#include "DecoderControl.hxx"
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#include "Main.hxx"
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#include <cmath>
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#include <assert.h>
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#include <stdio.h>
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static void
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pc_enqueue_song_locked(struct player_control *pc, struct song *song);
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player_control::player_control(unsigned _buffer_chunks,
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unsigned _buffered_before_play)
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:buffer_chunks(_buffer_chunks),
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buffered_before_play(_buffered_before_play),
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thread(nullptr),
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mutex(g_mutex_new()),
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cond(g_cond_new()),
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command(PLAYER_COMMAND_NONE),
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state(PLAYER_STATE_STOP),
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error_type(PLAYER_ERROR_NONE),
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error(nullptr),
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next_song(nullptr),
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cross_fade_seconds(0),
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mixramp_db(0),
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mixramp_delay_seconds(std::nanf("")),
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total_play_time(0)
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{
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}
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player_control::~player_control()
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{
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if (next_song != nullptr)
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song_free(next_song);
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g_cond_free(cond);
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g_mutex_free(mutex);
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}
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void
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player_wait_decoder(struct player_control *pc, struct decoder_control *dc)
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{
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assert(pc != NULL);
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assert(dc != NULL);
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assert(dc->client_cond == pc->cond);
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/* during this function, the decoder lock is held, because
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we're waiting for the decoder thread */
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g_cond_wait(pc->cond, dc->mutex);
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}
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static void
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player_command_wait_locked(struct player_control *pc)
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{
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while (pc->command != PLAYER_COMMAND_NONE)
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g_cond_wait(main_cond, pc->mutex);
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}
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static void
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player_command_locked(struct player_control *pc, enum player_command cmd)
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{
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assert(pc->command == PLAYER_COMMAND_NONE);
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pc->command = cmd;
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player_signal(pc);
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player_command_wait_locked(pc);
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}
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static void
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player_command(struct player_control *pc, enum player_command cmd)
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{
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player_lock(pc);
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player_command_locked(pc, cmd);
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player_unlock(pc);
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}
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void
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pc_play(struct player_control *pc, struct song *song)
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{
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assert(song != NULL);
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player_lock(pc);
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if (pc->state != PLAYER_STATE_STOP)
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player_command_locked(pc, PLAYER_COMMAND_STOP);
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assert(pc->next_song == NULL);
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pc_enqueue_song_locked(pc, song);
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assert(pc->next_song == NULL);
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player_unlock(pc);
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idle_add(IDLE_PLAYER);
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}
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void
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pc_cancel(struct player_control *pc)
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{
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player_command(pc, PLAYER_COMMAND_CANCEL);
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assert(pc->next_song == NULL);
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}
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void
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pc_stop(struct player_control *pc)
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{
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player_command(pc, PLAYER_COMMAND_CLOSE_AUDIO);
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assert(pc->next_song == NULL);
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idle_add(IDLE_PLAYER);
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}
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void
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pc_update_audio(struct player_control *pc)
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{
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player_command(pc, PLAYER_COMMAND_UPDATE_AUDIO);
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}
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void
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pc_kill(struct player_control *pc)
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{
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assert(pc->thread != NULL);
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player_command(pc, PLAYER_COMMAND_EXIT);
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g_thread_join(pc->thread);
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pc->thread = NULL;
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idle_add(IDLE_PLAYER);
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}
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void
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pc_pause(struct player_control *pc)
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{
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player_lock(pc);
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if (pc->state != PLAYER_STATE_STOP) {
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player_command_locked(pc, PLAYER_COMMAND_PAUSE);
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idle_add(IDLE_PLAYER);
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}
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player_unlock(pc);
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}
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static void
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pc_pause_locked(struct player_control *pc)
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{
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if (pc->state != PLAYER_STATE_STOP) {
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player_command_locked(pc, PLAYER_COMMAND_PAUSE);
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idle_add(IDLE_PLAYER);
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}
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}
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void
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pc_set_pause(struct player_control *pc, bool pause_flag)
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{
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player_lock(pc);
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switch (pc->state) {
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case PLAYER_STATE_STOP:
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break;
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case PLAYER_STATE_PLAY:
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if (pause_flag)
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pc_pause_locked(pc);
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break;
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case PLAYER_STATE_PAUSE:
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if (!pause_flag)
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pc_pause_locked(pc);
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break;
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}
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player_unlock(pc);
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}
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void
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pc_set_border_pause(struct player_control *pc, bool border_pause)
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{
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player_lock(pc);
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pc->border_pause = border_pause;
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player_unlock(pc);
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}
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void
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pc_get_status(struct player_control *pc, struct player_status *status)
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{
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player_lock(pc);
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player_command_locked(pc, PLAYER_COMMAND_REFRESH);
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status->state = pc->state;
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if (pc->state != PLAYER_STATE_STOP) {
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status->bit_rate = pc->bit_rate;
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status->audio_format = pc->audio_format;
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status->total_time = pc->total_time;
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status->elapsed_time = pc->elapsed_time;
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}
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player_unlock(pc);
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}
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void
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pc_set_error(struct player_control *pc, enum player_error type,
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GError *error)
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{
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assert(pc != NULL);
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assert(type != PLAYER_ERROR_NONE);
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assert(error != NULL);
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if (pc->error_type != PLAYER_ERROR_NONE)
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g_error_free(pc->error);
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pc->error_type = type;
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pc->error = error;
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}
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void
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pc_clear_error(struct player_control *pc)
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{
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player_lock(pc);
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if (pc->error_type != PLAYER_ERROR_NONE) {
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pc->error_type = PLAYER_ERROR_NONE;
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g_error_free(pc->error);
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}
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player_unlock(pc);
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}
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char *
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pc_get_error_message(struct player_control *pc)
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{
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player_lock(pc);
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char *message = pc->error_type != PLAYER_ERROR_NONE
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? g_strdup(pc->error->message)
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: NULL;
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player_unlock(pc);
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return message;
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}
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static void
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pc_enqueue_song_locked(struct player_control *pc, struct song *song)
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{
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assert(song != NULL);
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assert(pc->next_song == NULL);
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pc->next_song = song;
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player_command_locked(pc, PLAYER_COMMAND_QUEUE);
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}
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void
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pc_enqueue_song(struct player_control *pc, struct song *song)
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{
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assert(song != NULL);
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player_lock(pc);
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pc_enqueue_song_locked(pc, song);
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player_unlock(pc);
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}
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bool
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pc_seek(struct player_control *pc, struct song *song, float seek_time)
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{
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assert(song != NULL);
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player_lock(pc);
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if (pc->next_song != NULL)
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song_free(pc->next_song);
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pc->next_song = song;
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pc->seek_where = seek_time;
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player_command_locked(pc, PLAYER_COMMAND_SEEK);
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player_unlock(pc);
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assert(pc->next_song == NULL);
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idle_add(IDLE_PLAYER);
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return true;
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}
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float
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pc_get_cross_fade(const struct player_control *pc)
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{
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return pc->cross_fade_seconds;
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}
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void
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pc_set_cross_fade(struct player_control *pc, float cross_fade_seconds)
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{
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if (cross_fade_seconds < 0)
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cross_fade_seconds = 0;
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pc->cross_fade_seconds = cross_fade_seconds;
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idle_add(IDLE_OPTIONS);
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}
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void
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pc_set_mixramp_db(struct player_control *pc, float mixramp_db)
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{
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pc->mixramp_db = mixramp_db;
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idle_add(IDLE_OPTIONS);
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}
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void
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pc_set_mixramp_delay(struct player_control *pc, float mixramp_delay_seconds)
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{
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pc->mixramp_delay_seconds = mixramp_delay_seconds;
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idle_add(IDLE_OPTIONS);
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}
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