0aee49bdf8
This updates the copyright header to all be the same, which is pretty much an update of where to mail request for a copy of the GPL and the years of the MPD project. This also puts all committers under 'The Music Player Project' umbrella. These entries should go individually in the AUTHORS file, for consistancy.
188 lines
4.2 KiB
C
188 lines
4.2 KiB
C
/*
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* Copyright (C) 2003-2009 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 "input_plugin.h"
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#include "config.h"
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#include "conf.h"
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#include "input/file_input_plugin.h"
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#ifdef ENABLE_ARCHIVE
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#include "input/archive_input_plugin.h"
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#endif
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#ifdef HAVE_CURL
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#include "input/curl_input_plugin.h"
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#endif
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#include "input/lastfm_input_plugin.h"
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#ifdef ENABLE_MMS
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#include "input/mms_input_plugin.h"
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#endif
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#include <glib.h>
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#include <assert.h>
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#include <string.h>
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static const struct input_plugin *const input_plugins[] = {
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&input_plugin_file,
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#ifdef ENABLE_ARCHIVE
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&input_plugin_archive,
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#endif
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#ifdef HAVE_CURL
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&input_plugin_curl,
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#endif
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#ifdef ENABLE_LASTFM
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&lastfm_input_plugin,
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#endif
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#ifdef ENABLE_MMS
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&input_plugin_mms,
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#endif
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};
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static bool input_plugins_enabled[G_N_ELEMENTS(input_plugins)];
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static const unsigned num_input_plugins =
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sizeof(input_plugins) / sizeof(input_plugins[0]);
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/**
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* Find the "input" configuration block for the specified plugin.
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*
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* @param plugin_name the name of the input 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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input_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_INPUT, 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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g_error("input 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 input_stream_global_init(void)
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{
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for (unsigned i = 0; i < num_input_plugins; ++i) {
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const struct input_plugin *plugin = input_plugins[i];
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const struct config_param *param =
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input_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 (plugin->init == NULL || plugin->init(param))
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input_plugins_enabled[i] = true;
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}
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}
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void input_stream_global_finish(void)
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{
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for (unsigned i = 0; i < num_input_plugins; ++i)
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if (input_plugins_enabled[i] &&
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input_plugins[i]->finish != NULL)
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input_plugins[i]->finish();
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}
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bool
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input_stream_open(struct input_stream *is, const char *url)
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{
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is->seekable = false;
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is->ready = false;
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is->offset = 0;
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is->size = -1;
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is->error = 0;
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is->mime = NULL;
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for (unsigned i = 0; i < num_input_plugins; ++i) {
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const struct input_plugin *plugin = input_plugins[i];
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if (input_plugins_enabled[i] && plugin->open(is, url)) {
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assert(is->plugin != NULL);
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assert(is->plugin->close != NULL);
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assert(is->plugin->read != NULL);
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assert(is->plugin->eof != NULL);
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assert(!is->seekable || is->plugin->seek != NULL);
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return true;
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}
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}
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return false;
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}
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bool
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input_stream_seek(struct input_stream *is, off_t offset, int whence)
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{
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if (is->plugin->seek == NULL)
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return false;
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return is->plugin->seek(is, offset, whence);
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}
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struct tag *
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input_stream_tag(struct input_stream *is)
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{
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assert(is != NULL);
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return is->plugin->tag != NULL
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? is->plugin->tag(is)
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: NULL;
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}
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size_t
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input_stream_read(struct input_stream *is, void *ptr, size_t size)
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{
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assert(ptr != NULL);
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assert(size > 0);
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return is->plugin->read(is, ptr, size);
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}
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void input_stream_close(struct input_stream *is)
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{
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is->plugin->close(is);
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g_free(is->mime);
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}
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bool input_stream_eof(struct input_stream *is)
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{
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return is->plugin->eof(is);
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}
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int input_stream_buffer(struct input_stream *is)
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{
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if (is->plugin->buffer == NULL)
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return 0;
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return is->plugin->buffer(is);
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}
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