/*
** bool prepareMP3(string strFile, bool bReadOnly)
**
** Prepare a mp3 file to retreive it's tag information if it has
**
** Parameter:
** strFile: mp3 file with full pathname
** bReadOnly: Indicate how you are going to open the file.
*/
bool CMP3ID3::prepareMP3(string strFile, bool bReadOnly){
if ( m_pID3File != NULL )
id3_file_close(m_pID3File);
int fileID = -1;
if ( bReadOnly )
fileID = open(strFile.c_str(),O_RDONLY);
else
fileID = open(strFile.c_str(),O_RDWR);
if ( fileID == -1 ) return false;
if ( bReadOnly )
m_pID3File = id3_file_fdopen(fileID,ID3_FILE_MODE_READONLY);
else
m_pID3File = id3_file_fdopen(fileID,ID3_FILE_MODE_READWRITE);
if ( m_pID3File == NULL ) return false;
m_pID3Tag = id3_file_tag(m_pID3File);
return true;
}
void MP3ImportFileHandle::ImportID3(Tags *tags)
{
#ifdef USE_LIBID3TAG
wxFile f; // will be closed when it goes out of scope
struct id3_file *fp = NULL;
if (f.Open(mFilename)) {
// Use id3_file_fdopen() instead of id3_file_open since wxWidgets can open a
// file with a Unicode name and id3_file_open() can't (under Windows).
fp = id3_file_fdopen(f.fd(), ID3_FILE_MODE_READONLY);
}
if (!fp) {
return;
}
// The file descriptor is now owned by "fp", so we must tell "f" to forget
// about it.
f.Detach();
struct id3_tag *tp = id3_file_tag(fp);
if (!tp) {
id3_file_close(fp);
return;
}
tags->Clear();
// Loop through all frames
bool have_year = false;
for (int i = 0; i < (int) tp->nframes; i++) {
struct id3_frame *frame = tp->frames[i];
// printf("ID: %08x '%4s'\n", (int) *(int *)frame->id, frame->id);
// printf("Desc: %s\n", frame->description);
// printf("Num fields: %d\n", frame->nfields);
// for (int j = 0; j < (int) frame->nfields; j++) {
// printf("field %d type %d\n", j, frame->fields[j].type );
// if (frame->fields[j].type == ID3_FIELD_TYPE_STRINGLIST) {
// printf("num strings %d\n", frame->fields[j].stringlist.nstrings);
// }
// }
wxString n, v;
// Determine the tag name
if (strcmp(frame->id, ID3_FRAME_TITLE) == 0) {
n = TAG_TITLE;
}
else if (strcmp(frame->id, ID3_FRAME_ARTIST) == 0) {
n = TAG_ARTIST;
}
else if (strcmp(frame->id, ID3_FRAME_ALBUM) == 0) {
n = TAG_ALBUM;
}
else if (strcmp(frame->id, ID3_FRAME_TRACK) == 0) {
n = TAG_TRACK;
}
else if (strcmp(frame->id, ID3_FRAME_YEAR) == 0) {
// LLL: When libid3tag encounters the "TYER" tag, it converts it to a
// "ZOBS" (obsolete) tag and adds a "TDRC" tag at the end of the
// list of tags using the first 4 characters of the "TYER" tag.
// Since we write both the "TDRC" and "TYER" tags, the "TDRC" tag
// will always be encountered first in the list. We want use it
// since the converted "TYER" tag may have been truncated.
if (have_year) {
continue;
}
n = TAG_YEAR;
have_year = true;
}
else if (strcmp(frame->id, ID3_FRAME_COMMENT) == 0) {
n = TAG_COMMENTS;
}
else if (strcmp(frame->id, ID3_FRAME_GENRE) == 0) {
n = TAG_GENRE;
}
else {
// Use frame description as default tag name. The descriptions
// may include several "meanings" separated by "/" characters, so
// we just use the first meaning
n = UTF8CTOWX(frame->description).BeforeFirst(wxT('/'));
}
const id3_ucs4_t *ustr = NULL;
if (n == TAG_COMMENTS) {
ustr = id3_field_getfullstring(&frame->fields[3]);
}
else if (frame->nfields == 3) {
ustr = id3_field_getstring(&frame->fields[1]);
if (ustr) {
char *str = (char *)id3_ucs4_utf8duplicate(ustr);
n = UTF8CTOWX(str);
free(str);
}
ustr = id3_field_getstring(&frame->fields[2]);
}
else if (frame->nfields >= 2) {
ustr = id3_field_getstrings(&frame->fields[1], 0);
}
if (ustr) {
char *str = (char *)id3_ucs4_utf8duplicate(ustr);
v = UTF8CTOWX(str);
free(str);
}
if (!n.IsEmpty() && !v.IsEmpty()) {
tags->SetTag(n, v);
}
}
// Convert v1 genre to name
if (tags->HasTag(TAG_GENRE)) {
long g = -1;
if (tags->GetTag(TAG_GENRE).ToLong(&g)) {
tags->SetTag(TAG_GENRE, tags->GetGenre(g));
}
}
id3_file_close(fp);
#endif // ifdef USE_LIBID3TAG
}
