decoder_list: convert to C++
This commit is contained in:
Max Kellermann
237
src/DecoderList.cxx
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237
src/DecoderList.cxx
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/*
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "DecoderList.hxx"
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#include "decoder_plugin.h"
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#include "conf.h"
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#include "mpd_error.h"
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#include "decoder/pcm_decoder_plugin.h"
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#include "decoder/dsdiff_decoder_plugin.h"
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#include "decoder/dsf_decoder_plugin.h"
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#include "decoder/FLACDecoderPlugin.h"
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#include "decoder/OpusDecoderPlugin.h"
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#include "decoder/VorbisDecoderPlugin.h"
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#include "decoder/AdPlugDecoderPlugin.h"
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#include "decoder/WavpackDecoderPlugin.hxx"
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#include "decoder/FfmpegDecoderPlugin.hxx"
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#include <glib.h>
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#include <string.h>
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extern const struct decoder_plugin mad_decoder_plugin;
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extern const struct decoder_plugin mpg123_decoder_plugin;
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extern const struct decoder_plugin sndfile_decoder_plugin;
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extern const struct decoder_plugin audiofile_decoder_plugin;
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extern const struct decoder_plugin faad_decoder_plugin;
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extern const struct decoder_plugin mpcdec_decoder_plugin;
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extern const struct decoder_plugin modplug_decoder_plugin;
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extern const struct decoder_plugin mikmod_decoder_plugin;
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extern const struct decoder_plugin sidplay_decoder_plugin;
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extern const struct decoder_plugin wildmidi_decoder_plugin;
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extern const struct decoder_plugin fluidsynth_decoder_plugin;
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extern const struct decoder_plugin gme_decoder_plugin;
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const struct decoder_plugin *const decoder_plugins[] = {
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#ifdef HAVE_MAD
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&mad_decoder_plugin,
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#endif
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#ifdef HAVE_MPG123
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&mpg123_decoder_plugin,
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#endif
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#ifdef ENABLE_VORBIS_DECODER
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&vorbis_decoder_plugin,
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#endif
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#if defined(HAVE_FLAC)
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&oggflac_decoder_plugin,
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#endif
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#ifdef HAVE_FLAC
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&flac_decoder_plugin,
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#endif
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#ifdef HAVE_OPUS
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&opus_decoder_plugin,
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#endif
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#ifdef ENABLE_SNDFILE
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&sndfile_decoder_plugin,
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#endif
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#ifdef HAVE_AUDIOFILE
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&audiofile_decoder_plugin,
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#endif
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&dsdiff_decoder_plugin,
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&dsf_decoder_plugin,
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#ifdef HAVE_FAAD
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&faad_decoder_plugin,
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#endif
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#ifdef HAVE_MPCDEC
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&mpcdec_decoder_plugin,
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#endif
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#ifdef HAVE_WAVPACK
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&wavpack_decoder_plugin,
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#endif
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#ifdef HAVE_MODPLUG
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&modplug_decoder_plugin,
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#endif
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#ifdef ENABLE_MIKMOD_DECODER
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&mikmod_decoder_plugin,
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#endif
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#ifdef ENABLE_SIDPLAY
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&sidplay_decoder_plugin,
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#endif
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#ifdef ENABLE_WILDMIDI
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&wildmidi_decoder_plugin,
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#endif
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#ifdef ENABLE_FLUIDSYNTH
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&fluidsynth_decoder_plugin,
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#endif
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#ifdef HAVE_ADPLUG
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&adplug_decoder_plugin,
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#endif
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#ifdef HAVE_FFMPEG
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&ffmpeg_decoder_plugin,
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#endif
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#ifdef HAVE_GME
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&gme_decoder_plugin,
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#endif
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&pcm_decoder_plugin,
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NULL
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};
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enum {
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num_decoder_plugins = G_N_ELEMENTS(decoder_plugins) - 1,
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};
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/** which plugins have been initialized successfully? */
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bool decoder_plugins_enabled[num_decoder_plugins];
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static unsigned
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decoder_plugin_index(const struct decoder_plugin *plugin)
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{
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unsigned i = 0;
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while (decoder_plugins[i] != plugin)
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++i;
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return i;
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}
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static unsigned
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decoder_plugin_next_index(const struct decoder_plugin *plugin)
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{
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return plugin == 0
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? 0 /* start with first plugin */
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: decoder_plugin_index(plugin) + 1;
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}
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const struct decoder_plugin *
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decoder_plugin_from_suffix(const char *suffix,
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const struct decoder_plugin *plugin)
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{
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if (suffix == NULL)
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return NULL;
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for (unsigned i = decoder_plugin_next_index(plugin);
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decoder_plugins[i] != NULL; ++i) {
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plugin = decoder_plugins[i];
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if (decoder_plugins_enabled[i] &&
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decoder_plugin_supports_suffix(plugin, suffix))
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return plugin;
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}
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return NULL;
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}
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const struct decoder_plugin *
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decoder_plugin_from_mime_type(const char *mimeType, unsigned int next)
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{
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static unsigned i = num_decoder_plugins;
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if (mimeType == NULL)
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return NULL;
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if (!next)
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i = 0;
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for (; decoder_plugins[i] != NULL; ++i) {
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const struct decoder_plugin *plugin = decoder_plugins[i];
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if (decoder_plugins_enabled[i] &&
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decoder_plugin_supports_mime_type(plugin, mimeType)) {
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++i;
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return plugin;
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}
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}
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return NULL;
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}
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const struct decoder_plugin *
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decoder_plugin_from_name(const char *name)
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{
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decoder_plugins_for_each_enabled(plugin)
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if (strcmp(plugin->name, name) == 0)
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return plugin;
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return NULL;
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}
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/**
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* Find the "decoder" configuration block for the specified plugin.
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*
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* @param plugin_name the name of the decoder plugin
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* @return the configuration block, or NULL if none was configured
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*/
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static const struct config_param *
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decoder_plugin_config(const char *plugin_name)
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{
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const struct config_param *param = NULL;
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while ((param = config_get_next_param(CONF_DECODER, param)) != NULL) {
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const char *name =
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config_get_block_string(param, "plugin", NULL);
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if (name == NULL)
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MPD_ERROR("decoder configuration without 'plugin' name in line %d",
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param->line);
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if (strcmp(name, plugin_name) == 0)
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return param;
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}
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return NULL;
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}
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void decoder_plugin_init_all(void)
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{
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for (unsigned i = 0; decoder_plugins[i] != NULL; ++i) {
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const struct decoder_plugin *plugin = decoder_plugins[i];
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const struct config_param *param =
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decoder_plugin_config(plugin->name);
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if (!config_get_block_bool(param, "enabled", true))
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/* the plugin is disabled in mpd.conf */
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continue;
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if (decoder_plugin_init(plugin, param))
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decoder_plugins_enabled[i] = true;
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}
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}
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void decoder_plugin_deinit_all(void)
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{
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decoder_plugins_for_each_enabled(plugin)
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decoder_plugin_finish(plugin);
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}
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