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/*
* Copyright (C) 2003-2013 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 "DecoderControl.hxx"
#include "MusicPipe.hxx"
#include "Song.hxx"
#include <glib.h>
#include <assert.h>
decoder_control::decoder_control()
:state(DecoderState::STOP),
command(DecoderCommand::NONE),
song(nullptr),
replay_gain_db(0), replay_gain_prev_db(0),
mixramp_start(nullptr), mixramp_end(nullptr),
mixramp_prev_end(nullptr) {}
decoder_control::~decoder_control()
{
ClearError();
if (song != nullptr)
song->Free();
g_free(mixramp_start);
g_free(mixramp_end);
g_free(mixramp_prev_end);
}
bool
decoder_control::IsCurrentSong(const Song *_song) const
{
assert(_song != nullptr);
switch (state) {
case DecoderState::STOP:
case DecoderState::ERROR:
return false;
case DecoderState::START:
case DecoderState::DECODE:
return song_equals(song, _song);
}
assert(false);
gcc_unreachable();
}
void
decoder_control::Start(Song *_song,
unsigned _start_ms, unsigned _end_ms,
MusicBuffer &_buffer, MusicPipe &_pipe)
{
assert(_song != nullptr);
assert(_pipe.IsEmpty());
if (song != nullptr)
song->Free();
song = _song;
start_ms = _start_ms;
end_ms = _end_ms;
buffer = &_buffer;
pipe = &_pipe;
LockSynchronousCommand(DecoderCommand::START);
}
void
decoder_control::Stop()
{
Lock();
if (command != DecoderCommand::NONE)
/* Attempt to cancel the current command. If it's too
late and the decoder thread is already executing
the old command, we'll call STOP again in this
function (see below). */
SynchronousCommandLocked(DecoderCommand::STOP);
if (state != DecoderState::STOP && state != DecoderState::ERROR)
SynchronousCommandLocked(DecoderCommand::STOP);
Unlock();
}
bool
decoder_control::Seek(double where)
{
assert(state != DecoderState::START);
assert(where >= 0.0);
if (state == DecoderState::STOP ||
state == DecoderState::ERROR || !seekable)
return false;
seek_where = where;
seek_error = false;
LockSynchronousCommand(DecoderCommand::SEEK);
return !seek_error;
}
void
decoder_control::Quit()
{
assert(thread.IsDefined());
quit = true;
LockAsynchronousCommand(DecoderCommand::STOP);
thread.Join();
}
void
decoder_control::MixRampStart(char *_mixramp_start)
{
g_free(mixramp_start);
mixramp_start = _mixramp_start;
}
void
decoder_control::MixRampEnd(char *_mixramp_end)
{
g_free(mixramp_end);
mixramp_end = _mixramp_end;
}
void
decoder_control::MixRampPrevEnd(char *_mixramp_prev_end)
{
g_free(mixramp_prev_end);
mixramp_prev_end = _mixramp_prev_end;
}
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