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/* the Music Player Daemon (MPD)
* Copyright (C) 2008 Max Kellermann <max@duempel.org>
* This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "decoder_control.h"
struct decoder_control dc;
void dc_init(void)
{
notify_init(&dc.notify);
dc.state = DECODE_STATE_STOP;
dc.command = DECODE_COMMAND_NONE;
dc.error = DECODE_ERROR_NOERROR;
}
void dc_deinit(void)
{
notify_deinit(&dc.notify);
}
void dc_command_wait(Notify *notify)
{
while (dc.command != DECODE_COMMAND_NONE) {
notify_signal(&dc.notify);
notify_wait(notify);
}
}
static void dc_command(Notify *notify, enum decoder_command cmd)
{
dc.command = cmd;
dc_command_wait(notify);
}
static void dc_command_async(enum decoder_command cmd)
{
dc.command = cmd;
notify_signal(&dc.notify);
}
void
dc_start(Notify *notify, struct song *song)
{
assert(song != NULL);
dc.next_song = song;
dc.error = DECODE_ERROR_NOERROR;
dc_command(notify, DECODE_COMMAND_START);
}
void
dc_start_async(struct song *song)
{
assert(song != NULL);
dc.next_song = song;
dc.error = DECODE_ERROR_NOERROR;
dc_command_async(DECODE_COMMAND_START);
}
void dc_stop(Notify *notify)
{
if (dc.command == DECODE_COMMAND_START ||
dc.state != DECODE_STATE_STOP)
dc_command(notify, DECODE_COMMAND_STOP);
}
int dc_seek(Notify *notify, double where)
{
assert(where >= 0.0);
if (dc.state == DECODE_STATE_STOP || !dc.seekable)
return -1;
dc.seekWhere = where;
dc.seekError = 0;
dc_command(notify, DECODE_COMMAND_SEEK);
if (dc.seekError)
return -1;
return 0;
}
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