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, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
22 */
23
24static int
25_get_flctags(char *filename, struct song_metadata *psong)
26{
27	FLAC__Metadata_SimpleIterator *iterator = 0;
28	FLAC__StreamMetadata *block;
29	int block_number;
30	unsigned int sec, ms;
31	int i;
32	int err = 0;
33
34	if(!(iterator = FLAC__metadata_simple_iterator_new()))
35	{
36		DPRINTF(E_FATAL, L_SCANNER, "Out of memory while FLAC__metadata_simple_iterator_new()\n");
37		return -1;
38	}
39
40	block_number = 0;
41	if(!FLAC__metadata_simple_iterator_init(iterator, filename, true, true))
42	{
43		DPRINTF(E_ERROR, L_SCANNER, "Cannot extract tag from %s\n", filename);
44		return -1;
45	}
46
47	do {
48		if(!(block = FLAC__metadata_simple_iterator_get_block(iterator)))
49		{
50			DPRINTF(E_ERROR, L_SCANNER, "Cannot extract tag from %s\n", filename);
51			err = -1;
52			goto _exit;
53		}
54
55		switch(block->type)
56		{
57		case FLAC__METADATA_TYPE_STREAMINFO:
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			psong->image_size = block->data.picture.data_length;
82			if((psong->image = malloc(psong->image_size)))
83				memcpy(psong->image, block->data.picture.data, psong->image_size);
84			else
85				DPRINTF(E_ERROR, L_SCANNER, "Out of memory [%s]\n", filename);
86			break;
87#endif
88		default:
89			break;
90		}
91		FLAC__metadata_object_delete(block);
92	}
93	while(FLAC__metadata_simple_iterator_next(iterator));
94
95 _exit:
96	if(iterator)
97		FLAC__metadata_simple_iterator_delete(iterator);
98
99	return err;
100}
101
102static int
103_get_flcfileinfo(char *filename, struct song_metadata *psong)
104{
105	psong->lossless = 1;
106	psong->vbr_scale = 1;
107
108	return 0;
109}
110