+ segment_->append_payload(output, (end - start) * segment_->unit_size());
+ delete[] output;
+
+ for (const uint8_t* data : signal_data)
+ delete[] data;
+}
+
+void DecodeSignal::logic_mux_proc()
+{
+ do {
+ const uint64_t input_sample_count = get_working_sample_count();
+ const uint64_t output_sample_count = segment_->get_sample_count();
+
+ const uint64_t samples_to_process =
+ (input_sample_count > output_sample_count) ?
+ (input_sample_count - output_sample_count) : 0;
+
+ // Process the samples if necessary...
+ if (samples_to_process > 0) {
+ const uint64_t unit_size = segment_->unit_size();
+ const uint64_t chunk_sample_count = DecodeChunkLength / unit_size;
+
+ uint64_t processed_samples = 0;
+ do {
+ const uint64_t start_sample = output_sample_count + processed_samples;
+ const uint64_t sample_count =
+ min(samples_to_process - processed_samples, chunk_sample_count);
+
+ mux_logic_samples(start_sample, start_sample + sample_count);
+ processed_samples += sample_count;
+
+ // ...and process the newly muxed logic data
+ decode_input_cond_.notify_one();
+ } while (processed_samples < samples_to_process);
+ }
+
+ if (samples_to_process == 0) {
+ // Wait for more input
+ unique_lock<mutex> logic_mux_lock(logic_mux_mutex_);
+ logic_mux_cond_.wait(logic_mux_lock);
+ }
+ } while (!logic_mux_interrupt_);
+
+ // No more input data and session is stopped, let the decode thread
+ // process any pending data, terminate and release the global SRD mutex
+ // in order to let other decoders run
+ decode_input_cond_.notify_one();
+}
+
+void DecodeSignal::query_input_metadata()
+{
+ // Update the samplerate and start time because we cannot start
+ // the libsrd session without the current samplerate
+
+ // TODO Currently we assume all channels have the same sample rate
+ // and start time
+ bool samplerate_valid = false;
+ data::DecodeChannel *any_channel;
+ shared_ptr<Logic> logic_data;
+
+ do {
+ any_channel = &(*find_if(channels_.begin(), channels_.end(),
+ [](data::DecodeChannel ch) { return ch.assigned_signal; }));
+
+ logic_data = any_channel->assigned_signal->logic_data();
+
+ if (!logic_data) {
+ // Wait until input data is available or an interrupt was requested
+ unique_lock<mutex> input_wait_lock(input_mutex_);
+ decode_input_cond_.wait(input_wait_lock);
+ }
+ } while (!logic_data && !decode_interrupt_);
+
+ if (decode_interrupt_)
+ return;
+
+ do {
+ if (!logic_data->logic_segments().empty()) {
+ shared_ptr<LogicSegment> first_segment =
+ any_channel->assigned_signal->logic_data()->logic_segments().front();
+ start_time_ = first_segment->start_time();
+ samplerate_ = first_segment->samplerate();
+ if (samplerate_ > 0)
+ samplerate_valid = true;
+ }
+
+ if (!samplerate_valid) {
+ // Wait until input data is available or an interrupt was requested
+ unique_lock<mutex> input_wait_lock(input_mutex_);
+ decode_input_cond_.wait(input_wait_lock);
+ }
+ } while (!samplerate_valid && !decode_interrupt_);