X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fsigsession.cpp;h=6a69fdca2b99970aa0a86234a92fc0336dcb33c0;hp=348d40c1e5b3b09da676184fb12f49ce48b6c566;hb=b85f25545939d923f71609e5cc670e48f4f83f19;hpb=be73bdfa788fcc62bda3187cb1ba04fed2b9d721

diff --git a/pv/sigsession.cpp b/pv/sigsession.cpp
index 348d40c1..6a69fdca 100644
--- a/pv/sigsession.cpp
+++ b/pv/sigsession.cpp
@@ -72,13 +72,10 @@ SigSession::capture_state SigSession::get_capture_state() const
 }
 
 void SigSession::start_capture(struct sr_dev_inst *sdi,
-	uint64_t record_length, uint64_t sample_rate)
+	uint64_t record_length)
 {
 	stop_capture();
 
-	lock_guard<mutex> lock(_sampling_mutex);
-	_sample_rate = sample_rate;
-
 	_sampling_thread.reset(new boost::thread(
 		&SigSession::sample_thread_proc, this, sdi,
 		record_length));
@@ -140,10 +137,6 @@ void SigSession::load_thread_proc(const string name)
 void SigSession::sample_thread_proc(struct sr_dev_inst *sdi,
 	uint64_t record_length)
 {
-	shared_ptr<view::Signal> signal;
-	unsigned int logic_probe_count = 0;
-	unsigned int analog_probe_count = 0;
-
 	assert(sdi);
 
 	sr_session_new();
@@ -163,17 +156,26 @@ void SigSession::sample_thread_proc(struct sr_dev_inst *sdi,
 		return;
 	}
 
-	// Set the samplerate
-	{
-		lock_guard<mutex> lock(_sampling_mutex);
-		if (sr_config_set(sdi, SR_CONF_SAMPLERATE,
-			&_sample_rate) != SR_OK) {
-			qDebug() << "Failed to configure samplerate.";
-			sr_session_destroy();
-			return;
-		}
+	if (sr_session_start() != SR_OK) {
+		qDebug() << "Failed to start session.";
+		return;
 	}
 
+	set_capture_state(Running);
+
+	sr_session_run();
+	sr_session_destroy();
+
+	set_capture_state(Stopped);
+}
+
+void SigSession::feed_in_header(const sr_dev_inst *sdi)
+{
+	shared_ptr<view::Signal> signal;
+	uint64_t *sample_rate = NULL;
+	unsigned int logic_probe_count = 0;
+	unsigned int analog_probe_count = 0;
+
 	// Detect what data types we will receive
 	for (const GSList *l = sdi->probes; l; l = l->next) {
 		const sr_probe *const probe = (const sr_probe *)l->data;
@@ -191,19 +193,23 @@ void SigSession::sample_thread_proc(struct sr_dev_inst *sdi,
 		}
 	}
 
+	// Read out the sample rate
+	assert(sdi->driver);
+	assert(sr_config_get(sdi->driver, SR_CONF_SAMPLERATE,
+		(const void**)&sample_rate, sdi) == SR_OK);
+
 	// Create data containers for the coming data snapshots
 	{
 		lock_guard<mutex> data_lock(_data_mutex);
-		lock_guard<mutex> sampling_lock(_sampling_mutex);
 
 		if (logic_probe_count != 0) {
 			_logic_data.reset(new data::Logic(
-				logic_probe_count, _sample_rate));
+				logic_probe_count, *sample_rate));
 			assert(_logic_data);
 		}
 
 		if (analog_probe_count != 0) {
-			_analog_data.reset(new data::Analog(_sample_rate));
+			_analog_data.reset(new data::Analog(*sample_rate));
 			assert(_analog_data);
 		}
 	}
@@ -240,23 +246,13 @@ void SigSession::sample_thread_proc(struct sr_dev_inst *sdi,
 
 		signals_changed();
 	}
-
-	if (sr_session_start() != SR_OK) {
-		qDebug() << "Failed to start session.";
-		return;
-	}
-
-	set_capture_state(Running);
-
-	sr_session_run();
-	sr_session_destroy();
-
-	set_capture_state(Stopped);
 }
 
 void SigSession::feed_in_meta(const sr_dev_inst *sdi,
 	const sr_datafeed_meta &meta)
 {
+	(void)sdi;
+
 	for (const GSList *l = meta.config; l; l = l->next) {
 		const sr_config *const src = (const sr_config*)l->data;
 		switch (src->key) {
@@ -321,6 +317,7 @@ void SigSession::data_feed_in(const struct sr_dev_inst *sdi,
 
 	switch (packet->type) {
 	case SR_DF_HEADER:
+		feed_in_header(sdi);
 		break;
 
 	case SR_DF_META: