From 52074343b4cc8e2f0da40a9547a88a21ee3b250f Mon Sep 17 00:00:00 2001 From: Ron Pedde Date: Sun, 27 Feb 2005 00:42:27 +0000 Subject: [PATCH] Timo's flac metainfo scanner --- src/flac.c | 217 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 217 insertions(+) create mode 100644 src/flac.c diff --git a/src/flac.c b/src/flac.c new file mode 100644 index 00000000..20df8a18 --- /dev/null +++ b/src/flac.c @@ -0,0 +1,217 @@ +/* + * $Id$ + * Implementation file for server side format conversion. + * + * Copyright (C) 2005 Timo J. Rinne (tri@iki.fi) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#define _POSIX_PTHREAD_SEMANTICS +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include /* htons and friends */ +#include +#include /* why here? For osx 10.2, of course! */ + +#include "daapd.h" +#include "db-memory.h" +#include "err.h" +#include "mp3-scanner.h" + +#ifndef HAVE_STRCASESTR +# include "strcasestr.h" +#endif + +#include + +int scan_get_flacfileinfo(char *filename, MP3FILE *pmp3) +{ + FLAC__bool ok; + FLAC__Metadata_Chain *chain; + FLAC__Metadata_Iterator *iterator; + FLAC__StreamMetadata *block; + int rv = -1; + unsigned int sec, ms; + FILE *f; + + if (!(f = fopen(filename, "rb"))) { + DPRINTF(E_WARN,L_SCAN,"Could not open %s for reading\n", filename); + return -1; + } + fseek(f, 0, SEEK_END); + pmp3->file_size = ftell(f); + fseek(f, 0, SEEK_SET); + fclose(f); + + chain = FLAC__metadata_chain_new(); + if (! chain) { + DPRINTF(E_WARN,L_SCAN,"Cannot allocate FLAC metadata chain\n"); + return rv; + } + if (! FLAC__metadata_chain_read(chain, filename)) { + DPRINTF(E_WARN,L_SCAN,"Cannot read FLAC metadata from %s\n", filename); + FLAC__metadata_chain_delete(chain); + return rv; + } + + iterator = FLAC__metadata_iterator_new(); + if (! iterator) { + DPRINTF(E_WARN,L_SCAN,"Cannot allocate FLAC metadata iterator\n"); + FLAC__metadata_chain_delete(chain); + return rv; + } + + FLAC__metadata_iterator_init(iterator, chain); + do { + block = FLAC__metadata_iterator_get_block(iterator); + if (block->type == FLAC__METADATA_TYPE_STREAMINFO) { + sec = (unsigned int)(block->data.stream_info.total_samples / + block->data.stream_info.sample_rate); + ms = (unsigned int)(((block->data.stream_info.total_samples % + block->data.stream_info.sample_rate) * 1000) / + block->data.stream_info.sample_rate); + if ((sec == 0) && (ms == 0)) + break; /* Info is crap, escape div-by-zero. */ + pmp3->song_length = (sec * 1000) + ms; + pmp3->bitrate = (pmp3->file_size) / (((sec * 1000) + ms) / 8); + pmp3->samplerate = block->data.stream_info.sample_rate; + rv = 0; + break; + } + } while (FLAC__metadata_iterator_next(iterator)); + + if (rv < 0) { + DPRINTF(E_WARN,L_SCAN,"Cannot find FLAC metadata in %s\n", filename); + } + + FLAC__metadata_iterator_delete(iterator); + FLAC__metadata_chain_delete(chain); + return rv; +} + +#define GET_VORBIS_COMMENT(comment, name, len) \ + (((strncasecmp(name, (comment).entry, strlen(name)) == 0) && \ + ((comment).entry[strlen(name)] == '=')) ? \ + ((*(len) = (comment).length - (strlen(name) + 1)), \ + (&((comment).entry[strlen(name) + 1]))) : \ + NULL) + +int scan_get_flactags(char *filename, MP3FILE *pmp3) +{ + FLAC__bool ok; + FLAC__Metadata_Chain *chain; + FLAC__Metadata_Iterator *iterator; + FLAC__StreamMetadata *block; + int i; + char *val; + size_t len; + char tmp; + int found = 0; + + chain = FLAC__metadata_chain_new(); + if (! chain) { + DPRINTF(E_WARN,L_SCAN,"Cannot allocate FLAC metadata chain\n"); + return 0; + } + if (! FLAC__metadata_chain_read(chain, filename)) { + DPRINTF(E_WARN,L_SCAN,"Cannot read FLAC metadata from %s\n", filename); + FLAC__metadata_chain_delete(chain); + return 0; + } + + iterator = FLAC__metadata_iterator_new(); + if (! iterator) { + DPRINTF(E_WARN,L_SCAN,"Cannot allocate FLAC metadata iterator\n"); + FLAC__metadata_chain_delete(chain); + return 0; + } + + FLAC__metadata_iterator_init(iterator, chain); + do { + block = FLAC__metadata_iterator_get_block(iterator); + if (block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) { + { + for (i = 0; i < block->data.vorbis_comment.num_comments; i++) { + if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "ARTIST", &len)) { + if ((pmp3->artist = calloc(len + 1, 1)) != NULL) + strncpy(pmp3->artist, val, len); + } else if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "TITLE", &len)) { + if ((pmp3->title = calloc(len + 1, 1)) != NULL) + strncpy(pmp3->title, val, len); + } else if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "ALBUM", &len)) { + if ((pmp3->album = calloc(len + 1, 1)) != NULL) + strncpy(pmp3->album, val, len); + } else if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "GENRE", &len)) { + if ((pmp3->genre = calloc(len + 1, 1)) != NULL) + strncpy(pmp3->genre, val, len); + } else if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "COMPOSER", &len)) { + if ((pmp3->composer = calloc(len + 1, 1)) != NULL) + strncpy(pmp3->composer, val, len); + } else if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "COMMENT", &len)) { + if ((pmp3->comment = calloc(len + 1, 1)) != NULL) + strncpy(pmp3->comment, val, len); + } else if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "TRACKNUMBER", &len)) { + tmp = *(val + len); + *(val + len) = '\0'; + pmp3->track = atoi(val); + *(val + len) = tmp; + } else if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "DISCNUMBER", &len)) { + tmp = *(val + len); + *(val + len) = '\0'; + pmp3->disc = atoi(val); + *(val + len) = tmp; + } else if (val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i], + "YEAR", &len)) { + tmp = *(val + len); + *(val + len) = '\0'; + pmp3->year = atoi(val); + *(val + len) = tmp; + } + } + break; + } + found = 1; + } + } while (FLAC__metadata_iterator_next(iterator)); + + if (! found) { + DPRINTF(E_WARN,L_SCAN,"Cannot find FLAC metadata in %s\n", filename); + } + + FLAC__metadata_iterator_delete(iterator); + FLAC__metadata_chain_delete(chain); + return 0; +}