65 lines
2.8 KiB
C
65 lines
2.8 KiB
C
/* plugin_common - Routines common to several plugins
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* Copyright (C) 2002-2009 Josh Coalson
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* Copyright (C) 2011-2016 Xiph.Org Foundation
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* Copyright (C) 2003 Philip Jägenstedt
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "replaygain.h"
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#include "FLAC/ordinals.h"
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#include "FLAC/metadata.h"
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#include "share/grabbag.h"
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FLAC__bool FLAC_plugin__replaygain_get_from_file(const char *filename,
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double *reference, FLAC__bool *reference_set,
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double *track_gain, FLAC__bool *track_gain_set,
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double *album_gain, FLAC__bool *album_gain_set,
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double *track_peak, FLAC__bool *track_peak_set,
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double *album_peak, FLAC__bool *album_peak_set)
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{
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FLAC__Metadata_SimpleIterator *iterator = FLAC__metadata_simple_iterator_new();
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FLAC__bool ret = false;
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*track_gain_set = *album_gain_set = *track_peak_set = *album_peak_set = false;
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if(0 != iterator) {
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if(FLAC__metadata_simple_iterator_init(iterator, filename, /*read_only=*/true, /*preserve_file_stats=*/true)) {
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FLAC__bool got_vorbis_comments = false;
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ret = true;
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do {
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if(FLAC__metadata_simple_iterator_get_block_type(iterator) == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
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FLAC__StreamMetadata *block = FLAC__metadata_simple_iterator_get_block(iterator);
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if(0 != block) {
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if(grabbag__replaygain_load_from_vorbiscomment(block, /*album_mode=*/false, /*strict=*/true, reference, track_gain, track_peak)) {
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*reference_set = *track_gain_set = *track_peak_set = true;
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}
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if(grabbag__replaygain_load_from_vorbiscomment(block, /*album_mode=*/true, /*strict=*/true, reference, album_gain, album_peak)) {
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*reference_set = *album_gain_set = *album_peak_set = true;
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}
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FLAC__metadata_object_delete(block);
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got_vorbis_comments = true;
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}
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}
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} while (!got_vorbis_comments && FLAC__metadata_simple_iterator_next(iterator));
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}
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FLAC__metadata_simple_iterator_delete(iterator);
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}
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return ret;
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}
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