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\n", filename);
41		return -1;
42	}
43
44	do {
45		if(!(block = FLAC__metadata_simple_iterator_get_block(iterator)))
46		{
47			DPRINTF(E_ERROR, L_SCANNER, "Cannot extract tag from %s\n", filename);
48			err = -1;
49			goto _exit;
50		}
51
52		switch(block->type)
53		{
54		case FLAC__METADATA_TYPE_STREAMINFO:
55			sec = (unsigned int)(block->data.stream_info.total_samples /
56			                     block->data.stream_info.sample_rate);
57			ms = (unsigned int)(((block->data.stream_info.total_samples %
58			                      block->data.stream_info.sample_rate) * 1000) /
59			                      block->data.stream_info.sample_rate);
60			if ((sec == 0) && (ms == 0))
61				break; /* Info is crap, escape div-by-zero. */
62			psong->song_length = (sec * 1000) + ms;
63			psong->bitrate = (((uint64_t)(psong->file_size) * 1000) / (psong->song_length / 8));
64			psong->samplerate = block->data.stream_info.sample_rate;
65			psong->channels = block->data.stream_info.channels;
66			break;
67
68		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
69			for(i = 0; i < block->data.vorbis_comment.num_comments; i++)
70			{
71				vc_scan(psong,
72					(char*)block->data.vorbis_comment.comments[i].entry,
73					block->data.vorbis_comment.comments[i].length);
74			}
75			break;
76#if FLAC_API_VERSION_CURRENT >= 10
77		case FLAC__METADATA_TYPE_PICTURE:
78			psong->image_size = block->data.picture.data_length;
79			if((psong->image = malloc(psong->image_size)))
80				memcpy(psong->image, block->data.picture.data, psong->image_size);
81			else
82				DPRINTF(E_ERROR, L_SCANNER, "Out of memory [%s]\n", filename);
83			break;
84#endif
85		default:
86			break;
87		}
88		FLAC__metadata_object_delete(block);
89	}
90	while(FLAC__metadata_simple_iterator_next(iterator));
91
92 _exit:
93	if(iterator)
94		FLAC__metadata_simple_iterator_delete(iterator);
95
96	return err;
97}
98
99static int
100_get_flcfileinfo(char *filename, struct song_metadata *psong)
101{
102	psong->lossless = 1;
103	psong->vbr_scale = 1;
104
105	return 0;
106}
107