196 lines
8.1 KiB
C
196 lines
8.1 KiB
C
/*
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* Implementation file for server side format conversion.
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*
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* Copyright (C) 2005 Timo J. Rinne (tri@iki.fi)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_DIRENT_H
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# include <dirent.h> /* why here? For osx 10.2, of course! */
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#endif
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#include <netinet/in.h> /* htons and friends */
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#include <sys/stat.h>
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#include "logger.h"
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#include "db.h"
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#include <FLAC/metadata.h>
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#define TRUE ((1 == 1))
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#define FALSE (!TRUE)
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typedef struct media_file_info MP3FILE;
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#define GET_VORBIS_COMMENT(comment, name, len) (char*) \
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(((strncasecmp(name, (char*)(comment).entry, strlen(name)) == 0) && \
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((comment).entry[strlen(name)] == '=')) ? \
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((*(len) = (comment).length - (strlen(name) + 1)), \
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(&((comment).entry[strlen(name) + 1]))) : \
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NULL)
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/**
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* scan a flac file for metainfo.
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*
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* @param filename file to read metainfo for
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* @param pmp3 MP3FILE structure to fill
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* @returns TRUE if file should be added to DB, FALSE otherwise
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*/
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int scan_get_flacinfo(char *filename, MP3FILE *pmp3) {
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FLAC__Metadata_Chain *chain;
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FLAC__Metadata_Iterator *iterator;
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FLAC__StreamMetadata *block;
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int found=0;
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unsigned int sec, ms;
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int i;
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char *val;
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size_t len;
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char tmp;
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chain = FLAC__metadata_chain_new();
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if (! chain) {
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DPRINTF(E_WARN,L_SCAN,"Cannot allocate FLAC metadata chain\n");
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return FALSE;
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}
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if (! FLAC__metadata_chain_read(chain, filename)) {
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DPRINTF(E_WARN,L_SCAN,"Cannot read FLAC metadata from %s\n", filename);
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FLAC__metadata_chain_delete(chain);
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return FALSE;
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}
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iterator = FLAC__metadata_iterator_new();
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if (! iterator) {
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DPRINTF(E_WARN,L_SCAN,"Cannot allocate FLAC metadata iterator\n");
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FLAC__metadata_chain_delete(chain);
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return FALSE;
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}
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FLAC__metadata_iterator_init(iterator, chain);
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do {
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block = FLAC__metadata_iterator_get_block(iterator);
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if (block->type == FLAC__METADATA_TYPE_STREAMINFO) {
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sec = (unsigned int)(block->data.stream_info.total_samples /
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block->data.stream_info.sample_rate);
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ms = (unsigned int)(((block->data.stream_info.total_samples %
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block->data.stream_info.sample_rate) * 1000) /
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block->data.stream_info.sample_rate);
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if ((sec == 0) && (ms == 0))
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break; /* Info is crap, escape div-by-zero. */
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pmp3->song_length = (sec * 1000) + ms;
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pmp3->bitrate = (uint32_t)((pmp3->file_size) / (((sec * 1000) + ms) / 8));
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pmp3->samplerate = block->data.stream_info.sample_rate;
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pmp3->bits_per_sample = block->data.stream_info.bits_per_sample;
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pmp3->sample_count = block->data.stream_info.total_samples;
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found |= 1;
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if(found == 3)
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break;
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}
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if (block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
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for (i = 0; i < (int)block->data.vorbis_comment.num_comments; i++) {
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if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"ARTIST", &len))) {
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if ((pmp3->artist = calloc(len + 1, 1)) != NULL)
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strncpy(pmp3->artist, val, len);
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"TITLE", &len))) {
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if ((pmp3->title = calloc(len + 1, 1)) != NULL)
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strncpy(pmp3->title, val, len);
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"ALBUMARTIST", &len))) {
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if ((pmp3->album_artist = calloc(len + 1, 1)) != NULL)
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strncpy(pmp3->album_artist, val, len);
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"ALBUM", &len))) {
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if ((pmp3->album = calloc(len + 1, 1)) != NULL)
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strncpy(pmp3->album, val, len);
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"GENRE", &len))) {
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if ((pmp3->genre = calloc(len + 1, 1)) != NULL)
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strncpy(pmp3->genre, val, len);
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"COMPOSER", &len))) {
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if ((pmp3->composer = calloc(len + 1, 1)) != NULL)
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strncpy(pmp3->composer, val, len);
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"COMMENT", &len))) {
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if(pmp3->comment)
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free(pmp3->comment); /* was description */
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if ((pmp3->comment = calloc(len + 1, 1)) != NULL)
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strncpy(pmp3->comment, val, len);
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"DESCRIPTION", &len))) {
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if(!pmp3->comment) {
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if ((pmp3->comment = calloc(len + 1, 1)) != NULL)
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strncpy(pmp3->comment, val, len);
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}
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"TRACKNUMBER", &len))) {
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tmp = *(val + len);
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*(val + len) = '\0';
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pmp3->track = atoi(val);
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*(val + len) = tmp;
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"DISCNUMBER", &len))) {
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tmp = *(val + len);
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*(val + len) = '\0';
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pmp3->disc = atoi(val);
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*(val + len) = tmp;
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"YEAR", &len))) {
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tmp = *(val + len);
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*(val + len) = '\0';
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pmp3->year = atoi(val);
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*(val + len) = tmp;
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} else if ((val = GET_VORBIS_COMMENT(block->data.vorbis_comment.comments[i],
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"DATE", &len))) {
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tmp = *(val + len);
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*(val + len) = '\0';
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pmp3->year = atoi(val);
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*(val + len) = tmp;
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}
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}
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found |= 2;
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if(found == 3)
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break;
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}
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} while (FLAC__metadata_iterator_next(iterator));
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if (!found) {
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DPRINTF(E_WARN,L_SCAN,"Cannot find FLAC metadata in %s\n", filename);
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}
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FLAC__metadata_iterator_delete(iterator);
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FLAC__metadata_chain_delete(chain);
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return TRUE;
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}
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