2009-03-13 18:43:16 +01:00
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/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* http://www.musicpd.org
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2008-08-26 08:27:18 +02:00
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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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2009-03-13 18:43:16 +01:00
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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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2008-08-26 08:27:18 +02:00
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*/
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2008-08-26 08:44:19 +02:00
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#include "decoder_control.h"
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2009-10-31 17:02:12 +01:00
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#include "player_control.h"
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2008-08-26 08:40:47 +02:00
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2008-10-08 10:49:29 +02:00
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#include <assert.h>
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2008-08-26 08:40:47 +02:00
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struct decoder_control dc;
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2008-08-26 08:27:18 +02:00
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2008-08-26 08:45:14 +02:00
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void dc_init(void)
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{
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2009-08-13 23:33:46 +02:00
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dc.mutex = g_mutex_new();
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dc.cond = g_cond_new();
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2008-08-26 08:45:14 +02:00
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dc.state = DECODE_STATE_STOP;
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dc.command = DECODE_COMMAND_NONE;
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}
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2008-09-24 07:14:11 +02:00
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void dc_deinit(void)
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{
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2009-08-13 23:33:46 +02:00
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g_cond_free(dc.cond);
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g_mutex_free(dc.mutex);
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2008-09-24 07:14:11 +02:00
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}
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2009-08-13 23:33:46 +02:00
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static void
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2009-10-31 17:02:12 +01:00
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dc_command_wait_locked(void)
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2008-08-26 08:27:18 +02:00
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{
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while (dc.command != DECODE_COMMAND_NONE) {
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2009-08-13 23:33:46 +02:00
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decoder_signal();
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2009-10-31 17:02:12 +01:00
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player_wait_decoder();
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2008-08-26 08:27:18 +02:00
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}
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}
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2009-08-13 23:33:46 +02:00
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void
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2009-10-31 17:02:12 +01:00
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dc_command_wait(void)
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2009-08-13 23:33:46 +02:00
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{
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decoder_lock();
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2009-10-31 17:02:12 +01:00
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dc_command_wait_locked();
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2009-08-13 23:33:46 +02:00
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decoder_unlock();
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}
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2008-10-08 10:49:16 +02:00
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static void
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2009-10-31 17:02:12 +01:00
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dc_command_locked(enum decoder_command cmd)
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2008-08-26 08:27:18 +02:00
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{
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dc.command = cmd;
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2009-10-31 17:02:12 +01:00
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dc_command_wait_locked();
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2009-08-13 23:33:46 +02:00
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}
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static void
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2009-10-31 17:02:12 +01:00
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dc_command(enum decoder_command cmd)
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2009-08-13 23:33:46 +02:00
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{
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decoder_lock();
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2009-10-31 17:02:12 +01:00
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dc_command_locked(cmd);
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2009-08-13 23:33:46 +02:00
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decoder_unlock();
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2008-08-26 08:27:18 +02:00
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}
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static void dc_command_async(enum decoder_command cmd)
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{
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2009-08-13 23:33:46 +02:00
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decoder_lock();
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2008-08-26 08:27:18 +02:00
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dc.command = cmd;
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2009-08-13 23:33:46 +02:00
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decoder_signal();
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decoder_unlock();
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2008-08-26 08:27:18 +02:00
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}
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2008-10-08 10:49:11 +02:00
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void
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2009-10-31 17:02:12 +01:00
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dc_start(struct song *song)
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2008-08-26 08:27:18 +02:00
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{
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2009-04-25 15:07:22 +02:00
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assert(dc.pipe != NULL);
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2008-08-26 08:27:18 +02:00
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assert(song != NULL);
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dc.next_song = song;
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2009-10-31 17:02:12 +01:00
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dc_command(DECODE_COMMAND_START);
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2008-08-26 08:27:18 +02:00
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}
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2008-10-08 10:49:11 +02:00
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void
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dc_start_async(struct song *song)
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2008-08-26 08:27:18 +02:00
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{
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2009-04-25 15:07:22 +02:00
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assert(dc.pipe != NULL);
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2008-08-26 08:27:18 +02:00
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assert(song != NULL);
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dc.next_song = song;
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dc_command_async(DECODE_COMMAND_START);
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}
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2008-10-08 10:49:16 +02:00
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void
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2009-10-31 17:02:12 +01:00
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dc_stop(void)
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2008-08-26 08:27:18 +02:00
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{
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2009-08-13 23:33:46 +02:00
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decoder_lock();
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2009-04-25 15:19:01 +02:00
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if (dc.command != DECODE_COMMAND_NONE)
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/* Attempt to cancel the current command. If it's too
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late and the decoder thread is already executing
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the old command, we'll call STOP again in this
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function (see below). */
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2009-10-31 17:02:12 +01:00
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dc_command_locked(DECODE_COMMAND_STOP);
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2009-04-25 15:19:01 +02:00
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if (dc.state != DECODE_STATE_STOP && dc.state != DECODE_STATE_ERROR)
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2009-10-31 17:02:12 +01:00
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dc_command_locked(DECODE_COMMAND_STOP);
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2009-08-13 23:33:46 +02:00
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decoder_unlock();
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2008-08-26 08:27:18 +02:00
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}
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2008-10-30 08:38:54 +01:00
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bool
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2009-10-31 17:02:12 +01:00
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dc_seek(double where)
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2008-08-26 08:27:18 +02:00
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{
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2009-03-25 19:48:14 +01:00
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assert(dc.state != DECODE_STATE_START);
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2008-08-26 08:27:18 +02:00
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assert(where >= 0.0);
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2008-11-08 15:48:00 +01:00
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if (dc.state == DECODE_STATE_STOP ||
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dc.state == DECODE_STATE_ERROR || !dc.seekable)
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2008-10-30 08:38:54 +01:00
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return false;
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2008-08-26 08:27:18 +02:00
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2008-11-03 21:43:02 +01:00
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dc.seek_where = where;
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dc.seek_error = false;
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2009-10-31 17:02:12 +01:00
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dc_command(DECODE_COMMAND_SEEK);
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2008-08-26 08:27:18 +02:00
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2008-11-03 21:43:02 +01:00
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if (dc.seek_error)
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2008-10-30 08:38:54 +01:00
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return false;
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2008-08-26 08:27:18 +02:00
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2008-10-30 08:38:54 +01:00
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return true;
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2008-08-26 08:27:18 +02:00
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}
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2008-12-28 19:48:53 +01:00
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void
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2009-01-25 13:44:27 +01:00
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dc_quit(void)
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2008-12-28 19:48:53 +01:00
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{
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2009-01-25 13:44:27 +01:00
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assert(dc.thread != NULL);
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2008-12-28 19:48:53 +01:00
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dc.quit = true;
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2009-01-25 13:44:27 +01:00
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dc_command_async(DECODE_COMMAND_STOP);
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g_thread_join(dc.thread);
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dc.thread = NULL;
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2008-12-28 19:48:53 +01:00
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}
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