/* * Copyright (C) 2003-2011 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 "output_state.h" #include "output_internal.h" #include "output_all.h" #include <glib.h> #include <assert.h> #include <stdlib.h> #include <string.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 (!g_str_has_prefix(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) { g_debug("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; }