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/*
* Copyright (C) 2003-2010 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 "filter_plugin.h"
#include "filter_internal.h"
#include "filter_registry.h"
#include "conf.h"
#ifndef NDEBUG
#include "audio_format.h"
#endif
#include <assert.h>
struct filter *
filter_new(const struct filter_plugin *plugin,
const struct config_param *param, GError **error_r)
{
assert(plugin != NULL);
assert(error_r == NULL || *error_r == NULL);
return plugin->init(param, error_r);
}
struct filter *
filter_configured_new(const struct config_param *param, GError **error_r)
{
const char *plugin_name;
const struct filter_plugin *plugin;
assert(param != NULL);
assert(error_r == NULL || *error_r == NULL);
plugin_name = config_get_block_string(param, "plugin", NULL);
if (plugin_name == NULL) {
g_set_error(error_r, config_quark(), 0,
"No filter plugin specified");
return NULL;
}
plugin = filter_plugin_by_name(plugin_name);
if (plugin == NULL) {
g_set_error(error_r, config_quark(), 0,
"No such filter plugin: %s", plugin_name);
return NULL;
}
return filter_new(plugin, param, error_r);
}
void
filter_free(struct filter *filter)
{
assert(filter != NULL);
filter->plugin->finish(filter);
}
const struct audio_format *
filter_open(struct filter *filter, struct audio_format *audio_format,
GError **error_r)
{
const struct audio_format *out_audio_format;
assert(filter != NULL);
assert(audio_format != NULL);
assert(audio_format_valid(audio_format));
assert(error_r == NULL || *error_r == NULL);
out_audio_format = filter->plugin->open(filter, audio_format, error_r);
assert(out_audio_format == NULL || audio_format_valid(audio_format));
assert(out_audio_format == NULL ||
audio_format_valid(out_audio_format));
return out_audio_format;
}
void
filter_close(struct filter *filter)
{
assert(filter != NULL);
filter->plugin->close(filter);
}
const void *
filter_filter(struct filter *filter, const void *src, size_t src_size,
size_t *dest_size_r,
GError **error_r)
{
assert(filter != NULL);
assert(src != NULL);
assert(src_size > 0);
assert(dest_size_r != NULL);
assert(error_r == NULL || *error_r == NULL);
return filter->plugin->filter(filter, src, src_size, dest_size_r, error_r);
}
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