mpd/src/DecoderList.cxx

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/*
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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"
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#include "DecoderList.hxx"
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#include "DecoderPlugin.hxx"
#include "ConfigGlobal.hxx"
#include "ConfigData.hxx"
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#include "decoder/AudiofileDecoderPlugin.hxx"
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#include "decoder/PcmDecoderPlugin.hxx"
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#include "decoder/DsdiffDecoderPlugin.hxx"
#include "decoder/DsfDecoderPlugin.hxx"
#include "decoder/FlacDecoderPlugin.h"
#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 "decoder/GmeDecoderPlugin.hxx"
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#include "decoder/FaadDecoderPlugin.hxx"
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#include "decoder/MadDecoderPlugin.hxx"
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#include "decoder/SndfileDecoderPlugin.hxx"
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#include "decoder/Mpg123DecoderPlugin.hxx"
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#include "decoder/WildmidiDecoderPlugin.hxx"
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#include "decoder/MikmodDecoderPlugin.hxx"
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#include "decoder/ModplugDecoderPlugin.hxx"
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#include "decoder/MpcdecDecoderPlugin.hxx"
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#include "decoder/FluidsynthDecoderPlugin.hxx"
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#include "decoder/SidplayDecoderPlugin.hxx"
#include "system/FatalError.hxx"
#include "util/Macros.hxx"
#include <string.h>
const struct DecoderPlugin *const decoder_plugins[] = {
#ifdef HAVE_MAD
&mad_decoder_plugin,
#endif
#ifdef HAVE_MPG123
&mpg123_decoder_plugin,
#endif
#ifdef ENABLE_VORBIS_DECODER
&vorbis_decoder_plugin,
#endif
#if defined(HAVE_FLAC)
&oggflac_decoder_plugin,
#endif
#ifdef HAVE_FLAC
&flac_decoder_plugin,
#endif
#ifdef HAVE_OPUS
&opus_decoder_plugin,
#endif
#ifdef ENABLE_SNDFILE
&sndfile_decoder_plugin,
#endif
#ifdef HAVE_AUDIOFILE
&audiofile_decoder_plugin,
#endif
&dsdiff_decoder_plugin,
&dsf_decoder_plugin,
#ifdef HAVE_FAAD
&faad_decoder_plugin,
#endif
#ifdef HAVE_MPCDEC
&mpcdec_decoder_plugin,
#endif
#ifdef HAVE_WAVPACK
&wavpack_decoder_plugin,
#endif
#ifdef HAVE_MODPLUG
&modplug_decoder_plugin,
#endif
#ifdef ENABLE_MIKMOD_DECODER
&mikmod_decoder_plugin,
#endif
#ifdef ENABLE_SIDPLAY
&sidplay_decoder_plugin,
#endif
#ifdef ENABLE_WILDMIDI
&wildmidi_decoder_plugin,
#endif
#ifdef ENABLE_FLUIDSYNTH
&fluidsynth_decoder_plugin,
#endif
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#ifdef HAVE_ADPLUG
&adplug_decoder_plugin,
#endif
#ifdef HAVE_FFMPEG
&ffmpeg_decoder_plugin,
#endif
#ifdef HAVE_GME
&gme_decoder_plugin,
#endif
&pcm_decoder_plugin,
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nullptr
};
static constexpr unsigned num_decoder_plugins =
ARRAY_SIZE(decoder_plugins) - 1;
/** which plugins have been initialized successfully? */
bool decoder_plugins_enabled[num_decoder_plugins];
static unsigned
decoder_plugin_index(const struct DecoderPlugin *plugin)
{
unsigned i = 0;
while (decoder_plugins[i] != plugin)
++i;
return i;
}
static unsigned
decoder_plugin_next_index(const struct DecoderPlugin *plugin)
{
return plugin == 0
? 0 /* start with first plugin */
: decoder_plugin_index(plugin) + 1;
}
const struct DecoderPlugin *
decoder_plugin_from_suffix(const char *suffix,
const struct DecoderPlugin *plugin)
{
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if (suffix == nullptr)
return nullptr;
for (unsigned i = decoder_plugin_next_index(plugin);
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decoder_plugins[i] != nullptr; ++i) {
plugin = decoder_plugins[i];
if (decoder_plugins_enabled[i] &&
plugin->SupportsSuffix(suffix))
return plugin;
}
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return nullptr;
}
const struct DecoderPlugin *
decoder_plugin_from_mime_type(const char *mimeType, unsigned int next)
{
static unsigned i = num_decoder_plugins;
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if (mimeType == nullptr)
return nullptr;
if (!next)
i = 0;
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for (; decoder_plugins[i] != nullptr; ++i) {
const struct DecoderPlugin *plugin = decoder_plugins[i];
if (decoder_plugins_enabled[i] &&
plugin->SupportsMimeType(mimeType)) {
++i;
return plugin;
}
}
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return nullptr;
}
const struct DecoderPlugin *
decoder_plugin_from_name(const char *name)
{
decoder_plugins_find([=](const DecoderPlugin &plugin){
return strcmp(plugin.name, name) == 0;
});
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return nullptr;
}
/**
* Find the "decoder" configuration block for the specified plugin.
*
* @param plugin_name the name of the decoder plugin
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* @return the configuration block, or nullptr if none was configured
*/
static const struct config_param *
decoder_plugin_config(const char *plugin_name)
{
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const struct config_param *param = nullptr;
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while ((param = config_get_next_param(CONF_DECODER, param)) != nullptr) {
const char *name = param->GetBlockValue("plugin");
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if (name == nullptr)
FormatFatalError("decoder configuration without 'plugin' name in line %d",
param->line);
if (strcmp(name, plugin_name) == 0)
return param;
}
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return nullptr;
}
void decoder_plugin_init_all(void)
{
struct config_param empty;
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for (unsigned i = 0; decoder_plugins[i] != nullptr; ++i) {
const DecoderPlugin &plugin = *decoder_plugins[i];
const struct config_param *param =
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decoder_plugin_config(plugin.name);
if (param == nullptr)
param = &empty;
else if (!param->GetBlockValue("enabled", true))
/* the plugin is disabled in mpd.conf */
continue;
if (plugin.Init(*param))
decoder_plugins_enabled[i] = true;
}
}
void decoder_plugin_deinit_all(void)
{
decoder_plugins_for_each_enabled([=](const DecoderPlugin &plugin){
plugin.Finish();
});
}