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/*
* Copyright (C) 2003-2014 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.
*/
/*
* Saving and loading the audio output states to/from the state file.
*
*/
#include "config.h"
#include "OutputState.hxx"
#include "OutputAll.hxx"
#include "OutputInternal.hxx"
#include "OutputError.hxx"
#include "Log.hxx"
#include "util/StringUtil.hxx"
#include <assert.h>
#include <stdlib.h>
#define AUDIO_DEVICE_STATE "audio_device_state:"
unsigned audio_output_state_version;
void
audio_output_state_save(FILE *fp)
{
unsigned n = audio_output_count();
assert(n > 0);
for (unsigned i = 0; i < n; ++i) {
const struct audio_output *ao = audio_output_get(i);
fprintf(fp, AUDIO_DEVICE_STATE "%d:%s\n",
ao->enabled, ao->name);
}
}
bool
audio_output_state_read(const char *line)
{
long value;
char *endptr;
const char *name;
struct audio_output *ao;
if (!StringStartsWith(line, AUDIO_DEVICE_STATE))
return false;
line += sizeof(AUDIO_DEVICE_STATE) - 1;
value = strtol(line, &endptr, 10);
if (*endptr != ':' || (value != 0 && value != 1))
return false;
if (value != 0)
/* state is "enabled": no-op */
return true;
name = endptr + 1;
ao = audio_output_find(name);
if (ao == NULL) {
FormatDebug(output_domain,
"Ignoring device state for '%s'", name);
return true;
}
ao->enabled = false;
return true;
}
unsigned
audio_output_state_get_version(void)
{
return audio_output_state_version;
}
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