int
csid_seek (DB_fileinfo_t *_info, float time) {
sid_info_t *info = (sid_info_t *)_info;
float t = time;
if (t < _info->readpos) {
// reinit
info->sidplay->load (info->tune);
csid_mute_voices (info, chip_voices);
}
else {
t -= _info->readpos;
}
info->resid->filter (false);
int samples = t * _info->fmt.samplerate;
samples *= (_info->fmt.bps>>3) * _info->fmt.channels;
uint16_t buffer[2048 * _info->fmt.channels];
while (samples > 0) {
int n = min (samples, 2048) * _info->fmt.channels;
int done = info->sidplay->play (buffer, n);
if (done < n) {
trace ("sid seek failure\n");
return -1;
}
samples -= done;
}
info->resid->filter (true);
_info->readpos = time;
return 0;
}
int
csid_init (DB_fileinfo_t *_info, DB_playItem_t *it) {
sid_info_t *info = (sid_info_t *)_info;
// libsidplay crashes if file doesn't exist
// so i have to check it here
deadbeef->pl_lock ();
const char *uri = strdupa (deadbeef->pl_find_meta (it, ":URI"));
deadbeef->pl_unlock ();
DB_FILE *fp = deadbeef->fopen (uri);
if (!fp ){
return -1;
}
deadbeef->fclose (fp);
info->sidplay = new sidplay2;
info->resid = new ReSIDBuilder ("wtf");
info->resid->create (info->sidplay->info ().maxsids);
info->resid->filter (true);
int samplerate = deadbeef->conf_get_int ("sid.samplerate", 44100);
int bps = deadbeef->conf_get_int ("sid.bps", 16);
if (bps != 16 && bps != 8) {
bps = 16;
}
info->resid->sampling (samplerate);
info->duration = deadbeef->pl_get_item_duration (it);
deadbeef->pl_lock ();
info->tune = new SidTune (deadbeef->pl_find_meta (it, ":URI"));
deadbeef->pl_unlock ();
info->tune->selectSong (deadbeef->pl_find_meta_int (it, ":TRACKNUM", 0)+1);
sid2_config_t conf;
conf = info->sidplay->config ();
conf.frequency = samplerate;
conf.precision = bps;
conf.playback = deadbeef->conf_get_int ("sid.mono", 0) ? sid2_mono : sid2_stereo;
conf.sidEmulation = info->resid;
conf.optimisation = 0;
info->sidplay->config (conf);
info->sidplay->load (info->tune);
_info->plugin = &sid_plugin;
_info->fmt.channels = conf.playback == sid2_stereo ? 2 : 1;
_info->fmt.bps = bps;
_info->fmt.samplerate = conf.frequency;
_info->fmt.channelmask = _info->fmt.channels == 1 ? DDB_SPEAKER_FRONT_LEFT : (DDB_SPEAKER_FRONT_LEFT | DDB_SPEAKER_FRONT_RIGHT);
_info->readpos = 0;
chip_voices = deadbeef->conf_get_int ("chip.voices", 0xff);
csid_mute_voices (info, chip_voices);
return 0;
}
int
csid_read (DB_fileinfo_t *_info, char *bytes, int size) {
sid_info_t *info = (sid_info_t *)_info;
if (_info->readpos > info->duration) {
return 0;
}
if (chip_voices_changed) {
chip_voices = deadbeef->conf_get_int ("chip.voices", 0xff);
chip_voices_changed = 0;
csid_mute_voices (info, chip_voices);
}
int rd = info->sidplay->play (bytes, size);
int samplesize = (_info->fmt.bps>>3) * _info->fmt.channels;
_info->readpos += rd / samplesize / (float)_info->fmt.samplerate;
return size;
}