1/* plugin_common - Routines common to several plugins 2 * Copyright (C) 2002,2003,2004,2005,2006,2007 Josh Coalson 3 * Copyright (C) 2003 Philip J�genstedt 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation; either version 2 8 * of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 */ 19 20#if HAVE_CONFIG_H 21# include <config.h> 22#endif 23 24#include "replaygain.h" 25#include "FLAC/ordinals.h" 26#include "FLAC/metadata.h" 27#include "share/grabbag.h" 28 29FLAC__bool FLAC_plugin__replaygain_get_from_file(const char *filename, 30 double *reference, FLAC__bool *reference_set, 31 double *track_gain, FLAC__bool *track_gain_set, 32 double *album_gain, FLAC__bool *album_gain_set, 33 double *track_peak, FLAC__bool *track_peak_set, 34 double *album_peak, FLAC__bool *album_peak_set) 35{ 36 FLAC__Metadata_SimpleIterator *iterator = FLAC__metadata_simple_iterator_new(); 37 FLAC__bool ret = false; 38 39 *track_gain_set = *album_gain_set = *track_peak_set = *album_peak_set = false; 40 41 if(0 != iterator) { 42 if(FLAC__metadata_simple_iterator_init(iterator, filename, /*read_only=*/true, /*preserve_file_stats=*/true)) { 43 FLAC__bool got_vorbis_comments = false; 44 ret = true; 45 do { 46 if(FLAC__metadata_simple_iterator_get_block_type(iterator) == FLAC__METADATA_TYPE_VORBIS_COMMENT) { 47 FLAC__StreamMetadata *block = FLAC__metadata_simple_iterator_get_block(iterator); 48 if(0 != block) { 49 if(grabbag__replaygain_load_from_vorbiscomment(block, /*album_mode=*/false, /*strict=*/true, reference, track_gain, track_peak)) { 50 *reference_set = *track_gain_set = *track_peak_set = true; 51 } 52 if(grabbag__replaygain_load_from_vorbiscomment(block, /*album_mode=*/true, /*strict=*/true, reference, album_gain, album_peak)) { 53 *reference_set = *album_gain_set = *album_peak_set = true; 54 } 55 FLAC__metadata_object_delete(block); 56 got_vorbis_comments = true; 57 } 58 } 59 } while (!got_vorbis_comments && FLAC__metadata_simple_iterator_next(iterator)); 60 } 61 FLAC__metadata_simple_iterator_delete(iterator); 62 } 63 return ret; 64} 65