source: titan/minidlna-1.0.22/tagutils/tagutils-flc.c @ 13567

Last change on this file since 13567 was 13567, checked in by obi, 12 years ago

[titan] add minidlna-1.0.22 first step

File size: 3.3 KB
Line 
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}
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