1//=========================================================================
2// FILENAME	: tagutils-flc.c
3// DESCRIPTION	: FLAC metadata reader
4//=========================================================================
5// Copyright (c) 2008- NETGEAR, Inc. All Rights Reserved.
6//=========================================================================
7
8/*
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23static int
24_get_flctags(char *filename, struct song_metadata *psong)
25{
26	FLAC__Metadata_SimpleIterator *iterator = 0;
27	FLAC__StreamMetadata *block;
28	unsigned int sec, ms;
29	int i;
30	int err = 0;
31
32	if(!(iterator = FLAC__metadata_simple_iterator_new()))
33	{
34		DPRINTF(E_FATAL, L_SCANNER, "Out of memory while FLAC__metadata_simple_iterator_new()\n");
35		return -1;
36	}
37
38	if(!FLAC__metadata_simple_iterator_init(iterator, filename, true, true))
39	{
40		DPRINTF(E_ERROR, L_SCANNER, "Cannot extract tag from %s [%s]\n", filename,
41			FLAC__Metadata_SimpleIteratorStatusString[FLAC__metadata_simple_iterator_status(iterator)]);
42		goto _exit;
43	}
44
45	do {
46		if(!(block = FLAC__metadata_simple_iterator_get_block(iterator)))
47		{
48			DPRINTF(E_ERROR, L_SCANNER, "Cannot extract tag from %s\n", filename);
49			err = -1;
50			goto _exit;
51		}
52
53		switch(block->type)
54		{
55		case FLAC__METADATA_TYPE_STREAMINFO:
56			if (!block->data.stream_info.sample_rate)
57				break; /* Info is crap, avoid div-by-zero. */
58			sec = (unsigned int)(block->data.stream_info.total_samples /
59			                     block->data.stream_info.sample_rate);
60			ms = (unsigned int)(((block->data.stream_info.total_samples %
61			                      block->data.stream_info.sample_rate) * 1000) /
62			                      block->data.stream_info.sample_rate);
63			if ((sec == 0) && (ms == 0))
64				break; /* Info is crap, escape div-by-zero. */
65			psong->song_length = (sec * 1000) + ms;
66			psong->bitrate = (((uint64_t)(psong->file_size) * 1000) / (psong->song_length / 8));
67			psong->samplerate = block->data.stream_info.sample_rate;
68			psong->channels = block->data.stream_info.channels;
69			break;
70
71		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
72			for(i = 0; i < block->data.vorbis_comment.num_comments; i++)
73			{
74				vc_scan(psong,
75					(char*)block->data.vorbis_comment.comments[i].entry,
76					block->data.vorbis_comment.comments[i].length);
77			}
78			break;
79#if FLAC_API_VERSION_CURRENT >= 10
80		case FLAC__METADATA_TYPE_PICTURE:
81			if (psong->image) {
82				DPRINTF(E_MAXDEBUG, L_SCANNER, "Ignoring additional image [%s]\n", filename);
83				break;
84			}
85			psong->image_size = block->data.picture.data_length;
86			if((psong->image = malloc(psong->image_size)))
87				memcpy(psong->image, block->data.picture.data, psong->image_size);
88			else
89				DPRINTF(E_ERROR, L_SCANNER, "Out of memory [%s]\n", filename);
90			break;
91#endif
92		default:
93			break;
94		}
95		FLAC__metadata_object_delete(block);
96	}
97	while(FLAC__metadata_simple_iterator_next(iterator));
98
99 _exit:
100	if(iterator)
101		FLAC__metadata_simple_iterator_delete(iterator);
102
103	return err;
104}
105
106static int
107_get_flcfileinfo(char *filename, struct song_metadata *psong)
108{
109	psong->lossless = 1;
110	psong->vbr_scale = 1;
111
112	return 0;
113}
114