mirror of https://github.com/mpv-player/mpv
780 lines
19 KiB
C
780 lines
19 KiB
C
/*
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* CDDB HTTP protocol
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* by Bertrand Baudet <bertrand_baudet@yahoo.com>
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* (C) 2002, MPlayer team.
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*
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* Implementation follow the freedb.howto1.06.txt specification
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* from http://freedb.freedb.org
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*
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* discid computation by Jeremy D. Zawodny
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* Copyright (c) 1998-2000 Jeremy D. Zawodny <Jeremy@Zawodny.com>
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* Code release under GPL
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*
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*/
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#include "config.h"
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#if defined(HAVE_CDDA) && defined(MPLAYER_NETWORK)
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <errno.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#if defined(__linux__)
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#include <linux/cdrom.h>
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#elif defined(__FreeBSD__) || defined(__bsdi__) || defined(__NetBSD__) || defined(__OpenBSD__)
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#include <sys/cdio.h>
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#endif
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#include "cdd.h"
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#include "../version.h"
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#include "stream.h"
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#include "network.h"
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#define DEFAULT_FREEDB_SERVER "freedb.freedb.org"
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#define DEFAULT_CACHE_DIR "/.cddb/"
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stream_t* open_cdda(char *dev, char *track);
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static cd_toc_t cdtoc[100];
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#if defined(__linux__)
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int
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read_toc(const char *dev) {
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int drive;
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struct cdrom_tochdr tochdr;
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struct cdrom_tocentry tocentry;
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int i;
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drive = open(dev, O_RDONLY | O_NONBLOCK);
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if( drive<0 ) {
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return drive;
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}
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ioctl(drive, CDROMREADTOCHDR, &tochdr);
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for (i = tochdr.cdth_trk0; i <= tochdr.cdth_trk1; i++) {
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tocentry.cdte_track = i;
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tocentry.cdte_format = CDROM_MSF;
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ioctl(drive, CDROMREADTOCENTRY, &tocentry);
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cdtoc[i-1].min = tocentry.cdte_addr.msf.minute;
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cdtoc[i-1].sec = tocentry.cdte_addr.msf.second;
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cdtoc[i-1].frame = tocentry.cdte_addr.msf.frame;
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cdtoc[i-1].frame += cdtoc[i-1].min*60*75;
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cdtoc[i-1].frame += cdtoc[i-1].sec*75;
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}
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tocentry.cdte_track = 0xAA;
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tocentry.cdte_format = CDROM_MSF;
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ioctl(drive, CDROMREADTOCENTRY, &tocentry);
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cdtoc[tochdr.cdth_trk1].min = tocentry.cdte_addr.msf.minute;
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cdtoc[tochdr.cdth_trk1].sec = tocentry.cdte_addr.msf.second;
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cdtoc[tochdr.cdth_trk1].frame = tocentry.cdte_addr.msf.frame;
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cdtoc[tochdr.cdth_trk1].frame += cdtoc[tochdr.cdth_trk1].min*60*75;
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cdtoc[tochdr.cdth_trk1].frame += cdtoc[tochdr.cdth_trk1].sec*75;
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close(drive);
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return tochdr.cdth_trk1;
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}
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#elif defined(__FreeBSD__) || defined(__bsdi__)
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int
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read_toc(const char *dev) {
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int drive;
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struct ioc_toc_header tochdr;
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struct ioc_read_toc_single_entry tocentry;
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int i;
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drive = open(dev, O_RDONLY | O_NONBLOCK);
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if( drive<0 ) {
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return drive;
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}
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ioctl(drive, CDIOREADTOCHEADER, &tochdr);
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for (i = tochdr.starting_track; i <= tochdr.ending_track; i++) {
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tocentry.track = i;
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tocentry.address_format = CD_MSF_FORMAT;
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ioctl(drive, CDIOREADTOCENTRY, &tocentry);
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cdtoc[i-1].min = tocentry.entry.addr.msf.minute;
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cdtoc[i-1].sec = tocentry.entry.addr.msf.second;
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cdtoc[i-1].frame = tocentry.entry.addr.msf.frame;
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cdtoc[i-1].frame += cdtoc[i-1].min*60*75;
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cdtoc[i-1].frame += cdtoc[i-1].sec*75;
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}
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tocentry.track = 0xAA;
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tocentry.address_format = CD_MSF_FORMAT;
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ioctl(drive, CDIOREADTOCENTRY, &tocentry);
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cdtoc[tochdr.ending_track].min = tocentry.entry.addr.msf.minute;
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cdtoc[tochdr.ending_track].sec = tocentry.entry.addr.msf.second;
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cdtoc[tochdr.ending_track].frame = tocentry.entry.addr.msf.frame;
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cdtoc[tochdr.ending_track].frame += cdtoc[tochdr.ending_track].min*60*75;
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cdtoc[tochdr.ending_track].frame += cdtoc[tochdr.ending_track].sec*75;
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close(drive);
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return tochdr.ending_track;
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}
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#elif defined(__NetBSD__) || defined(__OpenBSD__)
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int
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read_toc(const char *dev) {
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int drive;
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struct ioc_toc_header tochdr;
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struct ioc_read_toc_entry tocentry;
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int i;
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struct cd_toc_entry toc_buffer;
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drive = open(dev, O_RDONLY | O_NONBLOCK);
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if( drive<0 ) {
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return drive;
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}
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ioctl(drive, CDIOREADTOCHEADER, &tochdr);
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for (i = tochdr.starting_track; i <= tochdr.ending_track; i++) {
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tocentry.starting_track = i;
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tocentry.address_format = CD_MSF_FORMAT;
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tocentry.data = &toc_buffer;
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tocentry.data_len = sizeof(toc_buffer);
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ioctl(drive, CDIOREADTOCENTRYS, &tocentry);
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cdtoc[i-1].min = toc_buffer.addr.msf.minute;
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cdtoc[i-1].sec = toc_buffer.addr.msf.second;
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cdtoc[i-1].frame = toc_buffer.addr.msf.frame;
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cdtoc[i-1].frame += cdtoc[i-1].min*60*75;
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cdtoc[i-1].frame += cdtoc[i-1].sec*75;
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}
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tocentry.starting_track = 0xAA;
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tocentry.address_format = CD_MSF_FORMAT;
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ioctl(drive, CDIOREADTOCENTRYS, &tocentry);
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cdtoc[tochdr.ending_track].min = toc_buffer.addr.msf.minute;
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cdtoc[tochdr.ending_track].sec = toc_buffer.addr.msf.second;
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cdtoc[tochdr.ending_track].frame = toc_buffer.addr.msf.frame;
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cdtoc[tochdr.ending_track].frame += cdtoc[tochdr.ending_track].min*60*75;
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cdtoc[tochdr.ending_track].frame += cdtoc[tochdr.ending_track].sec*75;
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close(drive);
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return tochdr.ending_track;
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}
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#endif
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unsigned int
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cddb_sum(int n) {
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unsigned int ret;
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ret = 0;
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while (n > 0) {
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ret += (n % 10);
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n /= 10;
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}
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return ret;
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}
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unsigned long
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cddb_discid(int tot_trks) {
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unsigned int i, t = 0, n = 0;
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i = 0;
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while (i < (unsigned int)tot_trks) {
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n = n + cddb_sum((cdtoc[i].min * 60) + cdtoc[i].sec);
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i++;
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}
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t = ((cdtoc[tot_trks].min * 60) + cdtoc[tot_trks].sec) -
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((cdtoc[0].min * 60) + cdtoc[0].sec);
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return ((n % 0xff) << 24 | t << 8 | tot_trks);
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}
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int
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cddb_http_request(char *command, int (*reply_parser)(HTTP_header_t*,cddb_data_t*), cddb_data_t *cddb_data) {
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char request[4096];
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int fd, ret = 0;
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URL_t *url;
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HTTP_header_t *http_hdr;
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if( reply_parser==NULL || command==NULL || cddb_data==NULL ) return -1;
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sprintf( request, "http://%s/~cddb/cddb.cgi?cmd=%s%s&proto=%d", cddb_data->freedb_server, command, cddb_data->cddb_hello, cddb_data->freedb_proto_level );
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printf("Request[%s]\n", request );
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url = url_new(request);
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if( url==NULL ) {
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printf("Not a valid URL\n");
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return -1;
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}
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fd = http_send_request(url);
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if( fd<0 ) {
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printf("failed to send the http request\n");
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return -1;
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}
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http_hdr = http_read_response( fd );
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if( http_hdr==NULL ) {
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printf("Failed to read the http response\n");
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return -1;
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}
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http_debug_hdr(http_hdr);
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printf("body=[%s]\n", http_hdr->body );
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switch(http_hdr->status_code) {
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case 200:
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ret = reply_parser(http_hdr, cddb_data);
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break;
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case 400:
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printf("Not Found\n");
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break;
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default:
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printf("Unknown Error code\n");
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}
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http_free( http_hdr );
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url_free( url );
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return ret;
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}
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int
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cddb_read_cache(cddb_data_t *cddb_data) {
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char file_name[100];
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struct stat stats;
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int file_fd, ret;
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size_t file_size;
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if( cddb_data==NULL || cddb_data->cache_dir==NULL ) return -1;
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sprintf( file_name, "%s%08lx", cddb_data->cache_dir, cddb_data->disc_id);
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file_fd = open(file_name, O_RDONLY);
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if( file_fd<0 ) {
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printf("No cache found\n");
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return -1;
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}
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ret = fstat( file_fd, &stats );
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if( ret<0 ) {
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perror("fstat");
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file_size = 4096;
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} else {
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file_size = stats.st_size;
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}
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cddb_data->xmcd_file = (char*)malloc(file_size);
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if( cddb_data->xmcd_file==NULL ) {
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printf("Memory allocation failed\n");
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close(file_fd);
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return -1;
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}
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cddb_data->xmcd_file_size = read(file_fd, cddb_data->xmcd_file, file_size);
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if( cddb_data->xmcd_file_size!=file_size ) {
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printf("Not all the xmcd file has been read\n");
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close(file_fd);
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return -1;
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}
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close(file_fd);
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return 0;
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}
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int
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cddb_write_cache(cddb_data_t *cddb_data) {
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// We have the file, save it for cache.
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struct stat file_stat;
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char file_name[100];
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int file_fd, ret;
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int wrote=0;
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if( cddb_data==NULL || cddb_data->cache_dir==NULL ) return -1;
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// Check if the CDDB cache dir exist
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ret = stat( cddb_data->cache_dir, &file_stat );
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if( ret<0 ) {
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// Directory not present, create it.
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ret = mkdir( cddb_data->cache_dir, 0755 );
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if( ret<0 ) {
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perror("mkdir");
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printf("Failed to create directory %s\n", cddb_data->cache_dir );
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return -1;
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}
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}
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sprintf( file_name, "%s%08lx", cddb_data->cache_dir, cddb_data->disc_id );
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file_fd = creat(file_name, S_IREAD|S_IWRITE);
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if( file_fd<0 ) {
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perror("create");
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return -1;
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}
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wrote = write(file_fd, cddb_data->xmcd_file, cddb_data->xmcd_file_size);
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if( wrote<0 ) {
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perror("write");
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close(file_fd);
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return -1;
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}
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if( (unsigned int)wrote!=cddb_data->xmcd_file_size ) {
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printf("Not all the xmcd file has been written\n");
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close(file_fd);
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return -1;
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}
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close(file_fd);
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return 0;
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}
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int
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cddb_read_parse(HTTP_header_t *http_hdr, cddb_data_t *cddb_data) {
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unsigned long disc_id;
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char category[100];
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char *ptr=NULL, *ptr2=NULL;
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int ret, status;
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if( http_hdr==NULL || cddb_data==NULL ) return -1;
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ret = sscanf( http_hdr->body, "%d ", &status);
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if( ret!=1 ) {
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printf("Parse error\n");
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return -1;
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}
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switch(status) {
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case 210:
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ret = sscanf( http_hdr->body, "%d %s %08lx", &status, category, &disc_id);
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if( ret!=3 ) {
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printf("Parse error\n");
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return -1;
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}
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// Check if it's a xmcd database file
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ptr = strstr(http_hdr->body, "# xmcd");
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if( ptr==NULL ) {
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printf("Invalid xmcd database file returned\n");
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return -1;
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}
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// Ok found the beginning of the file
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// look for the end
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ptr2 = strstr(ptr, "\r\n.\r\n");
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if( ptr2==NULL ) {
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ptr2 = strstr(ptr, "\n.\n");
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if( ptr2==NULL ) {
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printf("Unable to find '.'\n");
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ptr2=ptr+strlen(ptr); //return -1;
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}
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}
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// Ok found the end
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// do a sanity check
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if( http_hdr->body_size<(unsigned int)(ptr2-ptr) ) {
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printf("Unexpected fix me\n");
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return -1;
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}
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cddb_data->xmcd_file = ptr;
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cddb_data->xmcd_file_size = ptr2-ptr+2;
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cddb_data->xmcd_file[cddb_data->xmcd_file_size] = '\0';
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// Avoid the http_free function to free the xmcd file...save a mempcy...
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http_hdr->body = NULL;
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http_hdr->body_size = 0;
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return cddb_write_cache(cddb_data);
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default:
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printf("Unhandled code\n");
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}
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return 0;
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}
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int
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cddb_request_titles(cddb_data_t *cddb_data) {
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char command[1024];
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sprintf( command, "cddb+read+%s+%08lx", cddb_data->category, cddb_data->disc_id);
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return cddb_http_request(command, cddb_read_parse, cddb_data);
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}
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int
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cddb_parse_matches_list(HTTP_header_t *http_hdr, cddb_data_t *cddb_data) {
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char album_title[100];
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char *ptr = NULL;
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int ret;
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ptr = strstr(http_hdr->body, "\n");
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if( ptr==NULL ) {
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printf("Unable to find end of line\n");
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return -1;
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}
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ptr++;
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// We have a list of exact/inexact matches, so which one do we use?
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// So let's take the first one.
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ret = sscanf(ptr, "%s %08lx %s", cddb_data->category, &(cddb_data->disc_id), album_title);
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if( ret!=3 ) {
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printf("Parse error\n");
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return -1;
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}
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ptr = strstr(http_hdr->body, album_title);
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if( ptr!=NULL ) {
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char *ptr2;
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int len;
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ptr2 = strstr(ptr, "\n");
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if( ptr2==NULL ) {
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len = (http_hdr->body_size)-(ptr-(http_hdr->body));
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} else {
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len = ptr2-ptr+1;
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}
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strncpy(album_title, ptr, len);
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album_title[len-2]='\0';
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}
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printf("Parse OK, found: %s\n", album_title);
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return 0;
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}
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int
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cddb_query_parse(HTTP_header_t *http_hdr, cddb_data_t *cddb_data) {
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char album_title[100];
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char *ptr = NULL;
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int ret, status;
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ret = sscanf( http_hdr->body, "%d ", &status);
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if( ret!=1 ) {
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printf("Parse error\n");
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return -1;
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}
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switch(status) {
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case 200:
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// Found exact match
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ret = sscanf(http_hdr->body, "%d %s %08lx %s", &status, cddb_data->category, &(cddb_data->disc_id), album_title);
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if( ret!=4 ) {
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printf("Parse error\n");
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return -1;
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}
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ptr = strstr(http_hdr->body, album_title);
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if( ptr!=NULL ) {
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char *ptr2;
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int len;
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ptr2 = strstr(ptr, "\n");
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if( ptr2==NULL ) {
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len = (http_hdr->body_size)-(ptr-(http_hdr->body));
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} else {
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len = ptr2-ptr+1;
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}
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strncpy(album_title, ptr, len);
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album_title[len-2]='\0';
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}
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printf("Parse OK, found: %s\n", album_title);
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return cddb_request_titles(cddb_data);
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case 202:
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// No match found
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printf("Album not found\n");
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break;
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case 210:
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// Found exact matches, list follows
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cddb_parse_matches_list(http_hdr, cddb_data);
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return cddb_request_titles(cddb_data);
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/*
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body=[210 Found exact matches, list follows (until terminating `.')
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misc c711930d Santana / Supernatural
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rock c711930d Santana / Supernatural
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blues c711930d Santana / Supernatural
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.]
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*/
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case 211:
|
||
// Found inexact matches, list follows
|
||
cddb_parse_matches_list(http_hdr, cddb_data);
|
||
return cddb_request_titles(cddb_data);
|
||
case 500:
|
||
printf("Server returns: Command syntax error\n");
|
||
break;
|
||
default:
|
||
printf("Unhandled code\n");
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
int
|
||
cddb_proto_level_parse(HTTP_header_t *http_hdr, cddb_data_t *cddb_data) {
|
||
int max;
|
||
int ret, status;
|
||
char *ptr;
|
||
|
||
ret = sscanf( http_hdr->body, "%d ", &status);
|
||
if( ret!=1 ) {
|
||
printf("Parse error\n");
|
||
return -1;
|
||
}
|
||
|
||
switch(status) {
|
||
case 210:
|
||
ptr = strstr(http_hdr->body, "max proto:");
|
||
if( ptr==NULL ) {
|
||
printf("Parse error\n");
|
||
return -1;
|
||
}
|
||
ret = sscanf(ptr, "max proto: %d", &max);
|
||
if( ret!=1 ) {
|
||
printf("Parse error\n");
|
||
return -1;
|
||
}
|
||
cddb_data->freedb_proto_level = max;
|
||
return 0;
|
||
default:
|
||
printf("Unhandled code\n");
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
int
|
||
cddb_get_proto_level(cddb_data_t *cddb_data) {
|
||
return cddb_http_request("stat", cddb_proto_level_parse, cddb_data);
|
||
}
|
||
|
||
int
|
||
cddb_freedb_sites_parse(HTTP_header_t *http_hdr, cddb_data_t *cddb_data) {
|
||
int ret, status;
|
||
|
||
ret = sscanf( http_hdr->body, "%d ", &status);
|
||
if( ret!=1 ) {
|
||
printf("Parse error\n");
|
||
return -1;
|
||
}
|
||
|
||
switch(status) {
|
||
case 210:
|
||
// TODO: Parse the sites
|
||
ret = cddb_data->anonymous; // For gcc complaining about unused parameter.
|
||
return 0;
|
||
case 401:
|
||
printf("No sites information available\n");
|
||
break;
|
||
default:
|
||
printf("Unhandled code\n");
|
||
}
|
||
return -1;
|
||
}
|
||
|
||
int
|
||
cddb_get_freedb_sites(cddb_data_t *cddb_data) {
|
||
return cddb_http_request("sites", cddb_freedb_sites_parse, cddb_data);
|
||
}
|
||
|
||
void
|
||
cddb_create_hello(cddb_data_t *cddb_data) {
|
||
char host_name[51];
|
||
char *user_name;
|
||
|
||
if( cddb_data->anonymous ) { // Default is anonymous
|
||
/* Note from Eduardo P<>rez Ureta <eperez@it.uc3m.es> :
|
||
* We don't send current user/host name in hello to prevent spam.
|
||
* Software that sends this is considered spyware
|
||
* that most people don't like.
|
||
*/
|
||
user_name = "anonymous";
|
||
strcpy(host_name, "localhost");
|
||
} else {
|
||
if( gethostname(host_name, 50)<0 ) {
|
||
strcpy(host_name, "localhost");
|
||
}
|
||
user_name = getenv("LOGNAME");
|
||
}
|
||
sprintf( cddb_data->cddb_hello, "&hello=%s+%s+%s+%s", user_name, host_name, "MPlayer", VERSION );
|
||
}
|
||
|
||
int
|
||
cddb_retrieve(cddb_data_t *cddb_data) {
|
||
char offsets[1024], command[1024];
|
||
char *ptr;
|
||
unsigned int i, time_len;
|
||
int ret;
|
||
|
||
ptr = offsets;
|
||
for( i=0; i<cddb_data->tracks ; i++ ) {
|
||
ptr += sprintf(ptr, "%d+", cdtoc[i].frame );
|
||
}
|
||
ptr[0]=0;
|
||
time_len = (cdtoc[cddb_data->tracks].frame)/75;
|
||
|
||
cddb_data->freedb_server = DEFAULT_FREEDB_SERVER;
|
||
cddb_data->freedb_proto_level = 1;
|
||
cddb_data->xmcd_file = NULL;
|
||
|
||
cddb_create_hello(cddb_data);
|
||
if( cddb_get_proto_level(cddb_data)<0 ) {
|
||
printf("Failed to get the protocol level\n");
|
||
return -1;
|
||
}
|
||
|
||
//cddb_get_freedb_sites(&cddb_data);
|
||
|
||
sprintf(command, "cddb+query+%08lx+%d+%s%d", cddb_data->disc_id, cddb_data->tracks, offsets, time_len );
|
||
ret = cddb_http_request(command, cddb_query_parse, cddb_data);
|
||
if( ret<0 ) return -1;
|
||
|
||
if( cddb_data->cache_dir!=NULL ) {
|
||
free(cddb_data->cache_dir);
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int
|
||
cddb_resolve(const char *dev, char **xmcd_file) {
|
||
char cddb_cache_dir[] = DEFAULT_CACHE_DIR;
|
||
char *home_dir = NULL;
|
||
cddb_data_t cddb_data;
|
||
int ret;
|
||
|
||
ret = read_toc(dev);
|
||
if( ret<0 ) {
|
||
printf("Failed to open %s device.\n", dev);
|
||
return -1;
|
||
}
|
||
cddb_data.tracks = ret;
|
||
cddb_data.disc_id = cddb_discid(cddb_data.tracks);
|
||
cddb_data.anonymous = 1; // Don't send user info by default
|
||
|
||
// Check if there is a CD in the drive
|
||
// FIXME: That's not really a good way to check
|
||
if( cddb_data.disc_id==0 ) {
|
||
printf("No CD in the drive\n");
|
||
return -1;
|
||
}
|
||
|
||
home_dir = getenv("HOME");
|
||
if( home_dir==NULL ) {
|
||
cddb_data.cache_dir = NULL;
|
||
} else {
|
||
cddb_data.cache_dir = (char*)malloc(strlen(home_dir)+strlen(cddb_cache_dir)+1);
|
||
if( cddb_data.cache_dir==NULL ) {
|
||
printf("Memory allocation failed\n");
|
||
return -1;
|
||
}
|
||
sprintf(cddb_data.cache_dir, "%s%s", home_dir, cddb_cache_dir );
|
||
}
|
||
|
||
// Check for a cached file
|
||
if( cddb_read_cache(&cddb_data)<0 ) {
|
||
// No Cache found
|
||
if( cddb_retrieve(&cddb_data)<0 ) {
|
||
return -1;
|
||
}
|
||
}
|
||
|
||
if( cddb_data.xmcd_file!=NULL ) {
|
||
// printf("%s\n", cddb_data.xmcd_file );
|
||
*xmcd_file = cddb_data.xmcd_file;
|
||
return 0;
|
||
}
|
||
|
||
return -1;
|
||
}
|
||
|
||
/*******************************************************************************************************************
|
||
*
|
||
* xmcd parser
|
||
*
|
||
*******************************************************************************************************************/
|
||
char*
|
||
xmcd_parse_dtitle(cd_info_t *cd_info, char *line) {
|
||
char *ptr, *album;
|
||
ptr = strstr(line, "DTITLE=");
|
||
if( ptr!=NULL ) {
|
||
ptr += 7;
|
||
album = strstr(ptr, "/");
|
||
if( album==NULL ) return NULL;
|
||
cd_info->album = (char*)malloc(strlen(album+2)+1);
|
||
if( cd_info->album==NULL ) {
|
||
return NULL;
|
||
}
|
||
strcpy( cd_info->album, album+2 );
|
||
album--;
|
||
album[0] = '\0';
|
||
cd_info->artist = (char*)malloc(strlen(ptr)+1);
|
||
if( cd_info->artist==NULL ) {
|
||
return NULL;
|
||
}
|
||
strcpy( cd_info->artist, ptr );
|
||
}
|
||
return ptr;
|
||
}
|
||
|
||
char*
|
||
xmcd_parse_dgenre(cd_info_t *cd_info, char *line) {
|
||
char *ptr;
|
||
ptr = strstr(line, "DGENRE=");
|
||
if( ptr!=NULL ) {
|
||
ptr += 7;
|
||
cd_info->genre = (char*)malloc(strlen(ptr)+1);
|
||
if( cd_info->genre==NULL ) {
|
||
return NULL;
|
||
}
|
||
strcpy( cd_info->genre, ptr );
|
||
}
|
||
return ptr;
|
||
}
|
||
|
||
char*
|
||
xmcd_parse_ttitle(cd_info_t *cd_info, char *line) {
|
||
unsigned int track_nb;
|
||
unsigned long sec, off;
|
||
char *ptr;
|
||
ptr = strstr(line, "TTITLE");
|
||
if( ptr!=NULL ) {
|
||
ptr += 6;
|
||
// Here we point to the track number
|
||
track_nb = atoi(ptr);
|
||
ptr = strstr(ptr, "=");
|
||
if( ptr==NULL ) return NULL;
|
||
ptr++;
|
||
|
||
sec = cdtoc[track_nb].frame;
|
||
off = cdtoc[track_nb+1].frame-sec+1;
|
||
|
||
cd_info_add_track( cd_info, ptr, track_nb+1, (unsigned int)(off/(60*75)), (unsigned int)((off/75)%60), (unsigned int)(off%75), sec, off );
|
||
}
|
||
return ptr;
|
||
}
|
||
|
||
cd_info_t*
|
||
cddb_parse_xmcd(char *xmcd_file) {
|
||
cd_info_t *cd_info = NULL;
|
||
int length, pos = 0;
|
||
char *ptr, *ptr2;
|
||
unsigned int audiolen;
|
||
if( xmcd_file==NULL ) return NULL;
|
||
|
||
cd_info = cd_info_new();
|
||
if( cd_info==NULL ) {
|
||
return NULL;
|
||
}
|
||
|
||
length = strlen(xmcd_file);
|
||
ptr = xmcd_file;
|
||
while( ptr!=NULL && pos<length ) {
|
||
// Read a line
|
||
ptr2 = ptr;
|
||
while( ptr2[0]!='\0' && ptr2[0]!='\r' && ptr2[0]!='\n' ) ptr2++;
|
||
if( ptr2[0]=='\0' ) {
|
||
break;
|
||
}
|
||
ptr2[0] = '\0';
|
||
// Ignore comments
|
||
if( ptr[0]!='#' ) {
|
||
// Search for the album title
|
||
if( xmcd_parse_dtitle(cd_info, ptr) );
|
||
// Search for the genre
|
||
else if( xmcd_parse_dgenre(cd_info, ptr) );
|
||
// Search for a track title
|
||
else if( xmcd_parse_ttitle(cd_info, ptr) ) audiolen++; // <-- audiolen++ to shut up gcc warning
|
||
}
|
||
if( ptr2[1]=='\n' ) ptr2++;
|
||
pos = (ptr2+1)-ptr;
|
||
ptr = ptr2+1;
|
||
}
|
||
|
||
audiolen = cdtoc[cd_info->nb_tracks].frame-cdtoc[0].frame;
|
||
cd_info->min = (unsigned int)(audiolen/(60*75));
|
||
cd_info->sec = (unsigned int)((audiolen/75)%60);
|
||
cd_info->msec = (unsigned int)(audiolen%75);
|
||
|
||
return cd_info;
|
||
}
|
||
|
||
#endif
|