+void Decoder::init_decoder()
+{
+ if (!_probes.empty())
+ {
+ shared_ptr<pv::view::LogicSignal> logic_signal =
+ dynamic_pointer_cast<pv::view::LogicSignal>(
+ (*_probes.begin()).second);
+ if (logic_signal) {
+ shared_ptr<pv::data::Logic> data(
+ logic_signal->data());
+ if (data) {
+ _samplerate = data->get_samplerate();
+ _start_time = data->get_start_time();
+ }
+ }
+ }
+
+ _decoder_inst = srd_inst_new(_decoder->id, _options);
+ if(!_decoder_inst) {
+ qDebug() << "Failed to initialise decoder";
+ return;
+ }
+
+ _decoder_inst->data_samplerate = _samplerate;
+
+ GHashTable *probes = g_hash_table_new_full(g_str_hash,
+ g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
+
+ for(map<const srd_probe*, shared_ptr<view::Signal> >::
+ const_iterator i = _probes.begin();
+ i != _probes.end(); i++)
+ {
+ shared_ptr<view::Signal> signal((*i).second);
+ GVariant *const gvar = g_variant_new_int32(
+ signal->probe()->index);
+ g_variant_ref_sink(gvar);
+ g_hash_table_insert(probes, (*i).first->id, gvar);
+ }
+
+ srd_inst_probe_set_all(_decoder_inst, probes);
+}
+
+void Decoder::decode_proc(shared_ptr<data::Logic> data)
+{
+ uint8_t chunk[DecodeChunkLength];
+
+ assert(data);
+
+ _annotations.clear();
+
+ const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
+ data->get_snapshots();
+ if (snapshots.empty())
+ return;
+
+ const shared_ptr<pv::data::LogicSnapshot> &snapshot =
+ snapshots.front();
+ const int64_t sample_count = snapshot->get_sample_count() - 1;
+ double samplerate = data->get_samplerate();
+
+ // Show sample rate as 1Hz when it is unknown
+ if (samplerate == 0.0)
+ samplerate = 1.0;
+
+ srd_session_start(_probes.size(), snapshot->unit_size(), samplerate);
+
+ srd_pd_output_callback_add(SRD_OUTPUT_ANN,
+ Decoder::annotation_callback, this);
+
+ for (int64_t i = 0;
+ !this_thread::interruption_requested() && i < sample_count;
+ i += DecodeChunkLength)
+ {
+ const int64_t chunk_end = min(
+ i + DecodeChunkLength, sample_count);
+ snapshot->get_samples(chunk, i, chunk_end);
+
+ if (srd_session_send(i, chunk, chunk_end - i) != SRD_OK)
+ break;
+ }
+}
+
+void Decoder::annotation_callback(srd_proto_data *pdata, void *decoder)
+{
+ using namespace pv::view::decode;
+
+ assert(pdata);
+ assert(decoder);
+
+ Decoder *const d = (Decoder*)decoder;
+
+ shared_ptr<Annotation> a(new Annotation(pdata));
+ lock_guard<mutex> lock(d->_annotations_mutex);
+ d->_annotations.push_back(a);
+
+ d->new_decode_data();
+}
+