void
CDDBQuery::_SetDefaultInfo()
{
for (int16 i = fCDData.CountTracks(); i >= 0; i--)
fCDData.RemoveTrack(i);
vector<CDAudioTime> trackTimes;
GetTrackTimes(&fSCSIData, trackTimes);
int32 trackCount = GetTrackCount(&fSCSIData);
fCDData.SetArtist("Artist");
fCDData.SetAlbum("Audio CD");
fCDData.SetGenre("Misc");
for (int32 i = 0; i < trackCount; i++) {
BString trackname("Track ");
if (i < 9)
trackname << "0";
trackname << i + 1;
CDAudioTime time = trackTimes[i + 1] - trackTimes[i];
fCDData.AddTrack(trackname.String(), time);
}
}
status_t
CDDBQuery::_OpenContentFile(const int32 &discID)
{
// Makes sure that the lookup has a valid file to work with for the CD
// content. Returns true if there is an existing file, false if a lookup is
// required.
BFile file;
BString predicate;
predicate << "CD:key == " << discID;
entry_ref ref;
BVolumeRoster roster;
BVolume volume;
roster.Rewind();
while (roster.GetNextVolume(&volume) == B_OK) {
if (volume.IsReadOnly() || !volume.IsPersistent() || !volume.KnowsAttr()
|| !volume.KnowsQuery())
continue;
// make sure the volume we are looking at is indexed right
fs_create_index(volume.Device(), "CD:key", B_INT32_TYPE, 0);
BQuery query;
query.SetVolume(&volume);
query.SetPredicate(predicate.String());
if (query.Fetch() != B_OK)
continue;
if (query.GetNextRef(&ref) == B_OK)
break;
}
status_t status = fCDData.Load(ref);
if (status == B_NO_INIT) {
// We receive this error when the Load() function couldn't load the
// track times This just means that we get it from the SCSI data given
// to us in SetToCD
vector<CDAudioTime> times;
GetTrackTimes(&fSCSIData,times);
for (int32 i = 0; i < fCDData.CountTracks(); i++) {
CDAudioTime *item = fCDData.TrackTimeAt(i);
*item = times[i + 1] - times[i];
}
status = B_OK;
}
return status;
}
void
CDDBQuery::_ParseData(const BString &data)
{
// Can't simply call MakeEmpty() because the thread is spawned when the discID kept in fCDData
// is not the same as what's in the drive and MakeEmpty invalidates *everything* in the object.
// Considering that we reassign everything here, simply emptying the track list should be sufficient
for (int16 i = fCDData.CountTracks(); i >= 0; i--)
fCDData.RemoveTrack(i);
vector<CDAudioTime> trackTimes;
GetTrackTimes(&fSCSIData,trackTimes);
int32 trackCount = GetTrackCount(&fSCSIData);
if (data.CountChars() < 1) {
// This case occurs when the CDDB lookup fails. On these occasions, we need to generate
// the file ourselves. This is actually pretty easy.
fCDData.SetArtist("Artist");
fCDData.SetAlbum("Audio CD");
fCDData.SetGenre("Misc");
for (int32 i = 0; i < trackCount; i++) {
BString trackname("Track ");
if (i < 9)
trackname << "0";
trackname << i + 1;
CDAudioTime time = trackTimes[i + 1] - trackTimes[i];
fCDData.AddTrack(trackname.String(), time);
}
}
// TODO: This function is dog slow, but it works. Optimize.
// Ideally, the search should be done sequentially using GetLineFromString() and strchr().
// Order: genre(category), frame offsets, disc length, artist/album, track titles
int32 pos;
pos = data.FindFirst("DYEAR=");
if (pos > 0) {
BString artist,album;
artist = album = GetLineFromString(data.String() + sizeof("DYEAR") + pos);
// TODO: finish, once I find an entry which actually has a year in it
BAlert *alert = new BAlert("SimplyVorbis", "DYEAR entry found\n", "OK");
alert->Go();
}
pos = data.FindFirst("DTITLE=");
if (pos > 0) {
BString artist,album;
artist = album = GetLineFromString(data.String() + sizeof("DTITLE") + pos);
pos = artist.FindFirst(" / ");
if (pos > 0)
artist.Truncate(pos);
fCDData.SetArtist(artist.String());
album = album.String() + pos + sizeof(" / ") - 1;
fCDData.SetAlbum(album.String());
}
BString category = GetLineFromString(data.String() + 4);
pos = category.FindFirst(" ");
if (pos > 0)
category.Truncate(pos);
fCDData.SetGenre(category.String());
pos = data.FindFirst("TTITLE0=");
if (pos > 0) {
int32 trackCount = 0;
BString searchString = "TTITLE0=";
while (pos > 0) {
BString trackName = data.String() + pos + searchString.Length();
trackName.Truncate(trackName.FindFirst("\n"));
CDAudioTime tracktime = trackTimes[trackCount + 1] - trackTimes[trackCount];
fCDData.AddTrack(trackName.String(),tracktime);
trackCount++;
searchString = "TTITLE";
searchString << trackCount << "=";
pos = data.FindFirst(searchString.String(),pos);
}
}
}
