void timecoder_init(struct timecoder *tc, struct timecode_def *def,
double speed, unsigned int sample_rate)
{
assert(def != NULL);
/* A definition contains a lookup table which can be shared
* across multiple timecoders */
assert(def->lookup);
tc->def = def;
tc->speed = speed;
tc->dt = 1.0 / sample_rate;
tc->zero_alpha = tc->dt / (ZERO_RC + tc->dt);
tc->forwards = 1;
init_channel(&tc->primary);
init_channel(&tc->secondary);
pitch_init(&tc->pitch, tc->dt);
tc->ref_level = 32768.0;
tc->bitstream = 0;
tc->timecode = 0;
tc->valid_counter = 0;
tc->timecode_ticker = 0;
tc->mon = NULL;
}
int timecoder_init(struct timecoder_t *tc, const char *def_name,
unsigned int sample_rate)
{
/* A definition contains a lookup table which can be shared
* across multiple timecoders */
tc->def = find_definition(def_name);
if (tc->def == NULL) {
fprintf(stderr, "Timecode definition '%s' is not known.\n", def_name);
return -1;
}
if (build_lookup(tc->def) == -1)
return -1;
tc->dt = 1.0 / sample_rate;
tc->zero_alpha = tc->dt / (ZERO_RC + tc->dt);
tc->forwards = 1;
init_channel(&tc->primary);
init_channel(&tc->secondary);
pitch_init(&tc->pitch, tc->dt);
tc->ref_level = 32768.0;
tc->bitstream = 0;
tc->timecode = 0;
tc->valid_counter = 0;
tc->timecode_ticker = 0;
tc->mon = NULL;
return 0;
}
