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