#include <boost/thread/thread.hpp>
+#include <stdexcept>
+
#include <QDebug>
#include "decoder.h"
const double Decoder::DecodeThreshold = 0.2;
const int64_t Decoder::DecodeChunkLength = 4096;
-Decoder::Decoder(const srd_decoder *const dec,
- std::map<const srd_probe*,
- boost::shared_ptr<pv::view::Signal> > probes,
- GHashTable *options) :
+mutex Decoder::_global_decode_mutex;
+
+Decoder::Decoder(const srd_decoder *const dec) :
_decoder(dec),
- _probes(probes),
- _options(options),
- _session(NULL),
- _decoder_inst(NULL)
+ _options(g_hash_table_new_full(g_str_hash,
+ g_str_equal, g_free, (GDestroyNotify)g_variant_unref))
{
- init_decoder();
- begin_decode();
}
Decoder::~Decoder()
g_hash_table_destroy(_options);
}
-const srd_decoder* Decoder::get_decoder() const
+const srd_decoder* Decoder::decoder() const
{
return _decoder;
}
+const map<const srd_probe*, shared_ptr<view::LogicSignal> >&
+Decoder::probes() const
+{
+ return _probes;
+}
+
+void Decoder::set_probes(std::map<const srd_probe*,
+ boost::shared_ptr<view::LogicSignal> > probes)
+{
+ _probes = probes;
+ begin_decode();
+}
+
+const GHashTable* Decoder::options() const
+{
+ return _options;
+}
+
+void Decoder::set_option(const char *id, GVariant *value)
+{
+ g_variant_ref(value);
+ g_hash_table_replace(_options, (void*)g_strdup(id), value);
+ begin_decode();
+}
+
const vector< shared_ptr<view::decode::Annotation> >
Decoder::annotations() const
{
- lock_guard<mutex> lock(_annotations_mutex);
+ lock_guard<mutex> lock(_mutex);
return _annotations;
}
+QString Decoder::error_message()
+{
+ lock_guard<mutex> lock(_mutex);
+ return _error_message;
+}
+
void Decoder::begin_decode()
{
_decode_thread.interrupt();
_decode_thread.join();
+ _annotations.clear();
+
if (_probes.empty())
return;
+ // Get the samplerate and start time
+ 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) {
+ _start_time = data->get_start_time();
+ _samplerate = data->get_samplerate();
+ if (_samplerate == 0.0)
+ _samplerate = 1.0;
+ }
+ }
+
// We get the logic data of the first probe in the list.
// This works because we are currently assuming all
// LogicSignals have the same data/snapshot
- shared_ptr<pv::view::Signal> sig = (*_probes.begin()).second;
+ shared_ptr<pv::view::LogicSignal> sig = (*_probes.begin()).second;
assert(sig);
- const pv::view::LogicSignal *const l =
- dynamic_cast<pv::view::LogicSignal*>(sig.get());
- assert(l);
- shared_ptr<data::Logic> data = l->data();
+ shared_ptr<data::Logic> data = sig->data();
_decode_thread = boost::thread(&Decoder::decode_proc, this,
data);
{
}
-void Decoder::init_decoder()
+void Decoder::decode_proc(shared_ptr<data::Logic> data)
{
- 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();
- }
- }
- }
+ srd_session *session;
+ uint8_t chunk[DecodeChunkLength];
- srd_session_new(&_session);
- assert(_session);
+ assert(data);
- _decoder_inst = srd_inst_new(_session, _decoder->id, _options);
- if(!_decoder_inst) {
- qDebug() << "Failed to initialise decoder";
+ const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
+ data->get_snapshots();
+ if (snapshots.empty())
return;
- }
- _decoder_inst->data_samplerate = _samplerate;
+ const shared_ptr<pv::data::LogicSnapshot> &snapshot =
+ snapshots.front();
+ const int64_t sample_count = snapshot->get_sample_count() - 1;
+
+ // Create the session
+ srd_session_new(&session);
+ assert(session);
+
+ srd_session_metadata_set(session, SRD_CONF_SAMPLERATE,
+ g_variant_new_uint64((uint64_t)_samplerate));
+
+ srd_pd_output_callback_add(session, SRD_OUTPUT_ANN,
+ Decoder::annotation_callback, this);
+
+ // Create the decoder instance
+ srd_decoder_inst *const decoder_inst = srd_inst_new(
+ session, _decoder->id, _options);
+ if(!decoder_inst) {
+ _error_message = tr("Failed to initialise decoder");
+ return;
+ }
- GHashTable *probes = g_hash_table_new_full(g_str_hash,
+ // Setup the probes
+ GHashTable *const 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> >::
+ for(map<const srd_probe*, shared_ptr<view::LogicSignal> >::
const_iterator i = _probes.begin();
i != _probes.end(); i++)
{
g_hash_table_insert(probes, (*i).first->id, gvar);
}
- srd_inst_probe_set_all(_decoder_inst, probes);
-}
+ 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_config_set(_session, SRD_CONF_NUM_PROBES,
- g_variant_new_uint64(_probes.size()));
- srd_session_config_set(_session, SRD_CONF_UNITSIZE,
- g_variant_new_uint64(snapshot->unit_size()));
- srd_session_config_set(_session, SRD_CONF_SAMPLERATE,
- g_variant_new_uint64((uint64_t)samplerate));
-
- srd_session_start(_session);
-
- srd_pd_output_callback_add(_session, SRD_OUTPUT_ANN,
- Decoder::annotation_callback, this);
+ // Start the session
+ srd_session_start(session);
for (int64_t i = 0;
!this_thread::interruption_requested() && i < sample_count;
i += DecodeChunkLength)
{
+ lock_guard<mutex> decode_lock(_global_decode_mutex);
+
const int64_t chunk_end = min(
i + DecodeChunkLength, sample_count);
snapshot->get_samples(chunk, i, chunk_end);
- if (srd_session_send(_session, i, chunk, chunk_end - i) !=
- SRD_OK)
+ if (srd_session_send(session, i, i + sample_count,
+ chunk, chunk_end - i) != SRD_OK) {
+ _error_message = tr("Failed to initialise decoder");
break;
+ }
}
+
+ // Destroy the session
+ srd_session_destroy(session);
}
void Decoder::annotation_callback(srd_proto_data *pdata, void *decoder)
Decoder *const d = (Decoder*)decoder;
shared_ptr<Annotation> a(new Annotation(pdata));
- lock_guard<mutex> lock(d->_annotations_mutex);
+ lock_guard<mutex> lock(d->_mutex);
d->_annotations.push_back(a);
d->new_decode_data();
projects / pulseview.git / blobdiff