89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
/*
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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 "TagFile.hxx"
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extern "C" {
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#include "uri.h"
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}
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#include "DecoderList.hxx"
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#include "decoder_plugin.h"
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#include "input_stream.h"
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#include <assert.h>
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#include <unistd.h> /* for SEEK_SET */
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bool
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tag_file_scan(const char *path_fs,
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const struct tag_handler *handler, void *handler_ctx)
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{
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assert(path_fs != NULL);
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assert(handler != NULL);
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/* check if there's a suffix and a plugin */
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const char *suffix = uri_get_suffix(path_fs);
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if (suffix == NULL)
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return false;
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const struct decoder_plugin *plugin =
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decoder_plugin_from_suffix(suffix, NULL);
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if (plugin == NULL)
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return false;
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struct input_stream *is = NULL;
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Mutex mutex;
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Cond cond;
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do {
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/* load file tag */
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if (decoder_plugin_scan_file(plugin, path_fs,
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handler, handler_ctx))
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break;
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/* fall back to stream tag */
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if (plugin->scan_stream != NULL) {
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/* open the input_stream (if not already
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open) */
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if (is == nullptr)
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is = input_stream_open(path_fs, mutex, cond,
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NULL);
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/* now try the stream_tag() method */
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if (is != NULL) {
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if (decoder_plugin_scan_stream(plugin, is,
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handler,
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handler_ctx))
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break;
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input_stream_lock_seek(is, 0, SEEK_SET, NULL);
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}
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}
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plugin = decoder_plugin_from_suffix(suffix, plugin);
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} while (plugin != NULL);
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if (is != NULL)
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input_stream_close(is);
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return plugin != NULL;
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}
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