fc4868a040
git-svn-id: https://svn.musicpd.org/mpd/trunk@5098 09075e82-0dd4-0310-85a5-a0d7c8717e4f
634 lines
13 KiB
C
634 lines
13 KiB
C
/* the Music Player Daemon (MPD)
|
|
* (c)2003-2006 by Warren Dukes (warren.dukes@gmail.com
|
|
* This project's homepage is: http://www.musicpd.org
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include "tag.h"
|
|
#include "path.h"
|
|
#include "myfprintf.h"
|
|
#include "utils.h"
|
|
#include "utf8.h"
|
|
#include "log.h"
|
|
#include "inputStream.h"
|
|
#include "conf.h"
|
|
#include "charConv.h"
|
|
#include "tagTracker.h"
|
|
#include "mpd_types.h"
|
|
#include "gcc.h"
|
|
|
|
#include <sys/stat.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
|
|
#ifdef HAVE_ID3TAG
|
|
# define isId3v1(tag) (id3_tag_options(tag, 0, 0) & ID3_TAG_OPTION_ID3V1)
|
|
# ifndef ID3_FRAME_COMPOSER
|
|
# define ID3_FRAME_COMPOSER "TCOM"
|
|
# endif
|
|
# ifndef ID3_FRAME_DISC
|
|
# define ID3_FRAME_DISC "TPOS"
|
|
# endif
|
|
#endif
|
|
|
|
char *mpdTagItemKeys[TAG_NUM_OF_ITEM_TYPES] = {
|
|
"Artist",
|
|
"Album",
|
|
"Title",
|
|
"Track",
|
|
"Name",
|
|
"Genre",
|
|
"Date",
|
|
"Composer",
|
|
"Performer",
|
|
"Comment",
|
|
"Disc"
|
|
};
|
|
|
|
static mpd_sint8 ignoreTagItems[TAG_NUM_OF_ITEM_TYPES];
|
|
|
|
void initTagConfig(void)
|
|
{
|
|
int quit = 0;
|
|
char *temp;
|
|
char *s;
|
|
char *c;
|
|
ConfigParam *param;
|
|
int i;
|
|
|
|
/* parse the "metadata_to_use" config parameter below */
|
|
|
|
memset(ignoreTagItems, 0, TAG_NUM_OF_ITEM_TYPES);
|
|
ignoreTagItems[TAG_ITEM_COMMENT] = 1; /* ignore comments by default */
|
|
|
|
param = getConfigParam(CONF_METADATA_TO_USE);
|
|
|
|
if (!param)
|
|
return;
|
|
|
|
memset(ignoreTagItems, 1, TAG_NUM_OF_ITEM_TYPES);
|
|
|
|
if (0 == strcasecmp(param->value, "none"))
|
|
return;
|
|
|
|
temp = c = s = xstrdup(param->value);
|
|
while (!quit) {
|
|
if (*s == ',' || *s == '\0') {
|
|
if (*s == '\0')
|
|
quit = 1;
|
|
*s = '\0';
|
|
for (i = 0; i < TAG_NUM_OF_ITEM_TYPES; i++) {
|
|
if (strcasecmp(c, mpdTagItemKeys[i]) == 0) {
|
|
ignoreTagItems[i] = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (strlen(c) && i == TAG_NUM_OF_ITEM_TYPES) {
|
|
ERROR("error parsing metadata item \"%s\" at "
|
|
"line %i\n", c, param->line);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
s++;
|
|
c = s;
|
|
}
|
|
s++;
|
|
}
|
|
|
|
free(temp);
|
|
}
|
|
|
|
void printMpdTag(int fd, MpdTag * tag)
|
|
{
|
|
int i;
|
|
|
|
if (tag->time >= 0)
|
|
fdprintf(fd, "Time: %i\n", tag->time);
|
|
|
|
for (i = 0; i < tag->numOfItems; i++) {
|
|
fdprintf(fd, "%s: %s\n", mpdTagItemKeys[tag->items[i].type],
|
|
tag->items[i].value);
|
|
}
|
|
}
|
|
|
|
#ifdef HAVE_ID3TAG
|
|
static MpdTag *getID3Info(struct id3_tag *tag, char *id, int type, MpdTag * mpdTag)
|
|
{
|
|
struct id3_frame const *frame;
|
|
id3_ucs4_t const *ucs4;
|
|
id3_utf8_t *utf8;
|
|
id3_latin1_t *isostr;
|
|
union id3_field const *field;
|
|
unsigned int nstrings;
|
|
int i;
|
|
char *encoding;
|
|
|
|
frame = id3_tag_findframe(tag, id, 0);
|
|
if (!frame || frame->nfields < 2)
|
|
return mpdTag;
|
|
|
|
field = &frame->fields[1];
|
|
nstrings = id3_field_getnstrings(field);
|
|
|
|
for (i = 0; i < nstrings; i++) {
|
|
ucs4 = id3_field_getstrings(field, i);
|
|
if (!ucs4)
|
|
continue;
|
|
|
|
if (type == TAG_ITEM_GENRE)
|
|
ucs4 = id3_genre_name(ucs4);
|
|
|
|
if (isId3v1(tag) &&
|
|
(encoding = getConfigParamValue(CONF_ID3V1_ENCODING))) {
|
|
isostr = id3_ucs4_latin1duplicate(ucs4);
|
|
if (mpd_unlikely(!isostr))
|
|
continue;
|
|
setCharSetConversion("UTF-8", encoding);
|
|
utf8 = (id3_utf8_t *)convStrDup((char *)isostr);
|
|
if (!utf8) {
|
|
DEBUG("Unable to convert %s string to UTF-8: "
|
|
"'%s'\n", encoding, isostr);
|
|
free(isostr);
|
|
continue;
|
|
}
|
|
free(isostr);
|
|
} else {
|
|
utf8 = id3_ucs4_utf8duplicate(ucs4);
|
|
if (mpd_unlikely(!utf8))
|
|
continue;
|
|
}
|
|
|
|
if (mpdTag == NULL)
|
|
mpdTag = newMpdTag();
|
|
addItemToMpdTag(mpdTag, type, (char *)utf8);
|
|
|
|
free(utf8);
|
|
}
|
|
|
|
return mpdTag;
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_ID3TAG
|
|
MpdTag *parseId3Tag(struct id3_tag * tag)
|
|
{
|
|
MpdTag *ret = NULL;
|
|
|
|
ret = getID3Info(tag, ID3_FRAME_ARTIST, TAG_ITEM_ARTIST, ret);
|
|
ret = getID3Info(tag, ID3_FRAME_TITLE, TAG_ITEM_TITLE, ret);
|
|
ret = getID3Info(tag, ID3_FRAME_ALBUM, TAG_ITEM_ALBUM, ret);
|
|
ret = getID3Info(tag, ID3_FRAME_TRACK, TAG_ITEM_TRACK, ret);
|
|
ret = getID3Info(tag, ID3_FRAME_YEAR, TAG_ITEM_DATE, ret);
|
|
ret = getID3Info(tag, ID3_FRAME_GENRE, TAG_ITEM_GENRE, ret);
|
|
ret = getID3Info(tag, ID3_FRAME_COMPOSER, TAG_ITEM_COMPOSER, ret);
|
|
ret = getID3Info(tag, ID3_FRAME_COMMENT, TAG_ITEM_COMMENT, ret);
|
|
ret = getID3Info(tag, ID3_FRAME_DISC, TAG_ITEM_DISC, ret);
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_ID3TAG
|
|
static int fillBuffer(void *buf, size_t size, FILE * stream,
|
|
long offset, int whence)
|
|
{
|
|
if (fseek(stream, offset, whence) != 0) return 0;
|
|
return fread(buf, 1, size, stream);
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_ID3TAG
|
|
static int getId3v2FooterSize(FILE * stream, long offset, int whence)
|
|
{
|
|
id3_byte_t buf[ID3_TAG_QUERYSIZE];
|
|
int bufsize;
|
|
|
|
bufsize = fillBuffer(buf, ID3_TAG_QUERYSIZE, stream, offset, whence);
|
|
if (bufsize <= 0) return 0;
|
|
return id3_tag_query(buf, bufsize);
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_ID3TAG
|
|
static struct id3_tag *getId3Tag(FILE * stream, long offset, int whence)
|
|
{
|
|
struct id3_tag *tag;
|
|
id3_byte_t queryBuf[ID3_TAG_QUERYSIZE];
|
|
id3_byte_t *tagBuf;
|
|
int tagSize;
|
|
int queryBufSize;
|
|
int tagBufSize;
|
|
|
|
/* It's ok if we get less than we asked for */
|
|
queryBufSize = fillBuffer(queryBuf, ID3_TAG_QUERYSIZE,
|
|
stream, offset, whence);
|
|
if (queryBufSize <= 0) return NULL;
|
|
|
|
/* Look for a tag header */
|
|
tagSize = id3_tag_query(queryBuf, queryBufSize);
|
|
if (tagSize <= 0) return NULL;
|
|
|
|
/* Found a tag. Allocate a buffer and read it in. */
|
|
tagBuf = xmalloc(tagSize);
|
|
if (!tagBuf) return NULL;
|
|
|
|
tagBufSize = fillBuffer(tagBuf, tagSize, stream, offset, whence);
|
|
if (tagBufSize < tagSize) {
|
|
free(tagBuf);
|
|
return NULL;
|
|
}
|
|
|
|
tag = id3_tag_parse(tagBuf, tagBufSize);
|
|
|
|
free(tagBuf);
|
|
|
|
return tag;
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_ID3TAG
|
|
static struct id3_tag *findId3TagFromBeginning(FILE * stream)
|
|
{
|
|
struct id3_tag *tag;
|
|
struct id3_tag *seektag;
|
|
struct id3_frame *frame;
|
|
int seek;
|
|
|
|
tag = getId3Tag(stream, 0, SEEK_SET);
|
|
if (!tag) {
|
|
return NULL;
|
|
} else if (isId3v1(tag)) {
|
|
/* id3v1 tags don't belong here */
|
|
id3_tag_delete(tag);
|
|
return NULL;
|
|
}
|
|
|
|
/* We have an id3v2 tag, so let's look for SEEK frames */
|
|
while ((frame = id3_tag_findframe(tag, "SEEK", 0))) {
|
|
/* Found a SEEK frame, get it's value */
|
|
seek = id3_field_getint(id3_frame_field(frame, 0));
|
|
if (seek < 0)
|
|
break;
|
|
|
|
/* Get the tag specified by the SEEK frame */
|
|
seektag = getId3Tag(stream, seek, SEEK_CUR);
|
|
if (!seektag || isId3v1(seektag))
|
|
break;
|
|
|
|
/* Replace the old tag with the new one */
|
|
id3_tag_delete(tag);
|
|
tag = seektag;
|
|
}
|
|
|
|
return tag;
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_ID3TAG
|
|
static struct id3_tag *findId3TagFromEnd(FILE * stream)
|
|
{
|
|
struct id3_tag *tag;
|
|
struct id3_tag *v1tag;
|
|
int tagsize;
|
|
|
|
/* Get an id3v1 tag from the end of file for later use */
|
|
v1tag = getId3Tag(stream, -128, SEEK_END);
|
|
|
|
/* Get the id3v2 tag size from the footer (located before v1tag) */
|
|
tagsize = getId3v2FooterSize(stream, (v1tag ? -128 : 0) - 10, SEEK_END);
|
|
if (tagsize >= 0)
|
|
return v1tag;
|
|
|
|
/* Get the tag which the footer belongs to */
|
|
tag = getId3Tag(stream, tagsize, SEEK_CUR);
|
|
if (!tag)
|
|
return v1tag;
|
|
|
|
/* We have an id3v2 tag, so ditch v1tag */
|
|
id3_tag_delete(v1tag);
|
|
|
|
return tag;
|
|
}
|
|
#endif
|
|
|
|
MpdTag *id3Dup(char *file)
|
|
{
|
|
MpdTag *ret = NULL;
|
|
#ifdef HAVE_ID3TAG
|
|
struct id3_tag *tag;
|
|
FILE *stream;
|
|
|
|
stream = fopen(file, "r");
|
|
if (!stream) {
|
|
DEBUG("id3Dup: Failed to open file: '%s', %s\n", file,
|
|
strerror(errno));
|
|
return NULL;
|
|
}
|
|
|
|
tag = findId3TagFromBeginning(stream);
|
|
if (!tag)
|
|
tag = findId3TagFromEnd(stream);
|
|
|
|
fclose(stream);
|
|
|
|
if (!tag)
|
|
return NULL;
|
|
ret = parseId3Tag(tag);
|
|
id3_tag_delete(tag);
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
MpdTag *apeDup(char *file)
|
|
{
|
|
MpdTag *ret = NULL;
|
|
FILE *fp = NULL;
|
|
int tagCount;
|
|
char *buffer = NULL;
|
|
char *p;
|
|
int tagLen;
|
|
int size;
|
|
unsigned long flags;
|
|
int i;
|
|
char *key;
|
|
|
|
struct {
|
|
unsigned char id[8];
|
|
unsigned char version[4];
|
|
unsigned char length[4];
|
|
unsigned char tagCount[4];
|
|
unsigned char flags[4];
|
|
unsigned char reserved[8];
|
|
} footer;
|
|
|
|
char *apeItems[7] = {
|
|
"title",
|
|
"artist",
|
|
"album",
|
|
"comment",
|
|
"genre",
|
|
"track",
|
|
"year"
|
|
};
|
|
|
|
int tagItems[7] = {
|
|
TAG_ITEM_TITLE,
|
|
TAG_ITEM_ARTIST,
|
|
TAG_ITEM_ALBUM,
|
|
TAG_ITEM_COMMENT,
|
|
TAG_ITEM_GENRE,
|
|
TAG_ITEM_TRACK,
|
|
TAG_ITEM_DATE,
|
|
};
|
|
|
|
fp = fopen(file, "r");
|
|
if (!fp)
|
|
return NULL;
|
|
|
|
/* determine if file has an apeV2 tag */
|
|
if (fseek(fp, 0, SEEK_END))
|
|
goto fail;
|
|
size = ftell(fp);
|
|
if (fseek(fp, size - sizeof(footer), SEEK_SET))
|
|
goto fail;
|
|
if (fread(&footer, 1, sizeof(footer), fp) != sizeof(footer))
|
|
goto fail;
|
|
if (memcmp(footer.id, "APETAGEX", sizeof(footer.id)) != 0)
|
|
goto fail;
|
|
if (readLEuint32(footer.version) != 2000)
|
|
goto fail;
|
|
|
|
/* find beginning of ape tag */
|
|
tagLen = readLEuint32(footer.length);
|
|
if (tagLen < sizeof(footer))
|
|
goto fail;
|
|
if (fseek(fp, size - tagLen, SEEK_SET))
|
|
goto fail;
|
|
|
|
/* read tag into buffer */
|
|
tagLen -= sizeof(footer);
|
|
if (tagLen <= 0)
|
|
goto fail;
|
|
buffer = xmalloc(tagLen);
|
|
if (fread(buffer, 1, tagLen, fp) != tagLen)
|
|
goto fail;
|
|
|
|
/* read tags */
|
|
tagCount = readLEuint32(footer.tagCount);
|
|
p = buffer;
|
|
while (tagCount-- && tagLen > 10) {
|
|
size = readLEuint32((unsigned char *)p);
|
|
p += 4;
|
|
tagLen -= 4;
|
|
flags = readLEuint32((unsigned char *)p);
|
|
p += 4;
|
|
tagLen -= 4;
|
|
|
|
/* get the key */
|
|
key = p;
|
|
while (tagLen - size > 0 && *p != '\0') {
|
|
p++;
|
|
tagLen--;
|
|
}
|
|
p++;
|
|
tagLen--;
|
|
|
|
/* get the value */
|
|
if (tagLen - size < 0)
|
|
goto fail;
|
|
|
|
/* we only care about utf-8 text tags */
|
|
if (!(flags & (0x3 << 1))) {
|
|
for (i = 0; i < 7; i++) {
|
|
if (strcasecmp(key, apeItems[i]) == 0) {
|
|
if (!ret)
|
|
ret = newMpdTag();
|
|
addItemToMpdTagWithLen(ret, tagItems[i],
|
|
p, size);
|
|
}
|
|
}
|
|
}
|
|
p += size;
|
|
tagLen -= size;
|
|
}
|
|
|
|
fail:
|
|
if (fp)
|
|
fclose(fp);
|
|
if (buffer)
|
|
free(buffer);
|
|
return ret;
|
|
}
|
|
|
|
MpdTag *newMpdTag(void)
|
|
{
|
|
MpdTag *ret = xmalloc(sizeof(MpdTag));
|
|
ret->items = NULL;
|
|
ret->time = -1;
|
|
ret->numOfItems = 0;
|
|
return ret;
|
|
}
|
|
|
|
static void deleteItem(MpdTag * tag, int index)
|
|
{
|
|
tag->numOfItems--;
|
|
|
|
assert(index < tag->numOfItems);
|
|
|
|
removeTagItemString(tag->items[index].type, tag->items[index].value);
|
|
/* free(tag->items[index].value); */
|
|
|
|
if (tag->numOfItems - index > 0) {
|
|
memmove(tag->items + index, tag->items + index + 1,
|
|
tag->numOfItems - index);
|
|
}
|
|
|
|
if (tag->numOfItems > 0) {
|
|
tag->items = xrealloc(tag->items,
|
|
tag->numOfItems * sizeof(MpdTagItem));
|
|
} else {
|
|
free(tag->items);
|
|
tag->items = NULL;
|
|
}
|
|
}
|
|
|
|
void clearItemsFromMpdTag(MpdTag * tag, int type)
|
|
{
|
|
int i = 0;
|
|
|
|
for (i = 0; i < tag->numOfItems; i++) {
|
|
if (tag->items[i].type == type) {
|
|
deleteItem(tag, i);
|
|
/* decrement since when just deleted this node */
|
|
i--;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void clearMpdTag(MpdTag * tag)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < tag->numOfItems; i++) {
|
|
removeTagItemString(tag->items[i].type, tag->items[i].value);
|
|
/* free(tag->items[i].value); */
|
|
}
|
|
|
|
if (tag->items)
|
|
free(tag->items);
|
|
tag->items = NULL;
|
|
|
|
tag->numOfItems = 0;
|
|
|
|
tag->time = -1;
|
|
}
|
|
|
|
void freeMpdTag(MpdTag * tag)
|
|
{
|
|
clearMpdTag(tag);
|
|
free(tag);
|
|
}
|
|
|
|
MpdTag *mpdTagDup(MpdTag * tag)
|
|
{
|
|
MpdTag *ret = NULL;
|
|
int i;
|
|
|
|
if (!tag)
|
|
return NULL;
|
|
|
|
ret = newMpdTag();
|
|
ret->time = tag->time;
|
|
|
|
for (i = 0; i < tag->numOfItems; i++) {
|
|
addItemToMpdTag(ret, tag->items[i].type, tag->items[i].value);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int mpdTagsAreEqual(MpdTag * tag1, MpdTag * tag2)
|
|
{
|
|
int i;
|
|
|
|
if (tag1 == NULL && tag2 == NULL)
|
|
return 1;
|
|
else if (!tag1 || !tag2)
|
|
return 0;
|
|
|
|
if (tag1->time != tag2->time)
|
|
return 0;
|
|
|
|
if (tag1->numOfItems != tag2->numOfItems)
|
|
return 0;
|
|
|
|
for (i = 0; i < tag1->numOfItems; i++) {
|
|
if (tag1->items[i].type != tag2->items[i].type)
|
|
return 0;
|
|
if (strcmp(tag1->items[i].value, tag2->items[i].value)) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
#define fixUtf8(str) { \
|
|
if(str && !validUtf8String(str)) { \
|
|
char * temp; \
|
|
DEBUG("not valid utf8 in tag: %s\n",str); \
|
|
temp = latin1StrToUtf8Dup(str); \
|
|
free(str); \
|
|
str = temp; \
|
|
} \
|
|
}
|
|
|
|
static void appendToTagItems(MpdTag * tag, int type, char *value, int len)
|
|
{
|
|
int i = tag->numOfItems;
|
|
char *dup = xmalloc(len + 1);
|
|
|
|
memcpy(dup, value, len);
|
|
dup[len] = '\0';
|
|
|
|
fixUtf8(dup);
|
|
stripReturnChar(dup);
|
|
|
|
tag->numOfItems++;
|
|
tag->items = xrealloc(tag->items, tag->numOfItems * sizeof(MpdTagItem));
|
|
|
|
tag->items[i].type = type;
|
|
tag->items[i].value = getTagItemString(type, dup);
|
|
|
|
free(dup);
|
|
}
|
|
|
|
void addItemToMpdTagWithLen(MpdTag * tag, int itemType, char *value, int len)
|
|
{
|
|
if (ignoreTagItems[itemType])
|
|
return;
|
|
|
|
if (!value || !len)
|
|
return;
|
|
|
|
/* we can't hold more than 255 items */
|
|
if (tag->numOfItems == 255)
|
|
return;
|
|
|
|
appendToTagItems(tag, itemType, value, len);
|
|
}
|