/*
* This file is part of the libsigrokflow project.
*
+ * Copyright (C) 2018 Martin Ling <martin-sigrok@earth.li>
* Copyright (C) 2018 Uwe Hermann <uwe@hermann-uwe.de>
*
* This program is free software: you can redistribute it and/or modify
#include <config.h>
#include <libsigrokflow/libsigrokflow.hpp>
-#include <iostream>
-
namespace Srf
{
using namespace std;
-using namespace std::placeholders;
-
-void init()
-{
- Gst::Plugin::register_static(GST_VERSION_MAJOR, GST_VERSION_MINOR,
- "sigrok_legacy_capture_device",
- "Wrapper for capture devices using legacy libsigrok APIs",
- sigc::ptr_fun(&LegacyCaptureDevice::register_element),
- "0.01", "GPLv3+", "sigrok", "libsigrokflow", "http://sigrok.org");
-}
-GstBlock::GstBlock(GstElement *gobj) :
- Gst::Element(gobj)
+Sink::Sink(GstBaseSink *gobj) :
+ Gst::BaseSink(gobj)
{
}
Device::Device(GstElement *gobj) :
- GstBlock(gobj)
+ Gst::Element(gobj)
{
}
{
}
-void LegacyCaptureDevice::class_init(Gst::ElementClass<LegacyCaptureDevice> *klass)
+#ifdef HAVE_LIBSIGROKDECODE
+void LegacyDecoder::class_init(Gst::ElementClass<LegacyDecoder> *klass)
{
- klass->set_metadata("sigrok legacy capture device",
- "Source", "Wrapper for capture devices using legacy libsigrok APIs",
- "Martin Ling");
+ klass->set_metadata("sigrok legacy decoder",
+ "Sink", "Wrapper for protocol decoders using legacy libsigrokdecode APIs",
+ "Uwe Hermann");
klass->add_pad_template(Gst::PadTemplate::create(
- "src",
- Gst::PAD_SRC,
+ "sink",
+ Gst::PAD_SINK,
Gst::PAD_ALWAYS,
Gst::Caps::create_any()));
}
-bool LegacyCaptureDevice::register_element(Glib::RefPtr<Gst::Plugin> plugin)
+bool LegacyDecoder::register_element(Glib::RefPtr<Gst::Plugin> plugin)
{
- Gst::ElementFactory::register_element(plugin, "sigrok_legacy_capture_device",
- 0, Gst::register_mm_type<LegacyCaptureDevice>(
- "sigrok_legacy_capture_device"));
+ Gst::ElementFactory::register_element(plugin, "sigrok_legacy_decoder",
+ 0, Gst::register_mm_type<LegacyDecoder>(
+ "sigrok_legacy_decoder"));
+
return true;
}
-LegacyCaptureDevice::LegacyCaptureDevice(GstElement *gobj) :
- Glib::ObjectBase(typeid(LegacyCaptureDevice)),
- CaptureDevice(gobj)
+LegacyDecoder::LegacyDecoder(GstBaseSink *gobj) :
+ Glib::ObjectBase(typeid(LegacyDecoder)),
+ Sink(gobj)
{
- add_pad(_src_pad = Gst::Pad::create(get_pad_template("src"), "src"));
}
-Glib::RefPtr<LegacyCaptureDevice>LegacyCaptureDevice::create(
- shared_ptr<sigrok::HardwareDevice> libsigrok_device)
+Glib::RefPtr<LegacyDecoder>LegacyDecoder::create(
+ struct srd_session *libsigrokdecode_session, uint64_t unitsize)
{
- auto element = Gst::ElementFactory::create_element("sigrok_legacy_capture_device");
+ auto element = Gst::ElementFactory::create_element("sigrok_legacy_decoder");
if (!element)
throw runtime_error("Failed to create element - plugin not registered?");
- auto device = Glib::RefPtr<LegacyCaptureDevice>::cast_static(element);
- device->_libsigrok_device = libsigrok_device;
- return device;
+ auto decoder = Glib::RefPtr<LegacyDecoder>::cast_static(element);
+ decoder->session_ = libsigrokdecode_session;
+ decoder->unitsite_ = unitsize;
+
+ return decoder;
}
-shared_ptr<sigrok::HardwareDevice> LegacyCaptureDevice::libsigrok_device()
+struct srd_session *LegacyDecoder::libsigrokdecode_session()
{
- return _libsigrok_device;
+ return session_;
}
-Gst::StateChangeReturn LegacyCaptureDevice::change_state_vfunc(Gst::StateChange transition)
+Gst::FlowReturn LegacyDecoder::render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer)
{
- switch (transition)
- {
- case Gst::STATE_CHANGE_READY_TO_PAUSED:
- return Gst::StateChangeReturn::STATE_CHANGE_NO_PREROLL;
- case Gst::STATE_CHANGE_PAUSED_TO_PLAYING:
- _libsigrok_device->open();
- _libsigrok_device->config_set(sigrok::ConfigKey::LIMIT_SAMPLES,
- Glib::Variant<int>::create(10));
- _task = Gst::Task::create(std::bind(&LegacyCaptureDevice::_run, this));
- _task->set_lock(_mutex);
- _src_pad->set_active(true);
- _task->start();
- return Gst::STATE_CHANGE_SUCCESS;
- default:
- return Gst::STATE_CHANGE_SUCCESS;
- }
+ Gst::MapInfo info;
+ buffer->map(info, Gst::MAP_READ);
+ uint64_t num_samples = info.get_size() / unitsite_;
+ srd_session_send(session_, abs_ss_, abs_ss_ + num_samples,
+ info.get_data(), info.get_size(), unitsite_);
+ abs_ss_ += num_samples;
+ buffer->unmap(info);
+
+ return Gst::FLOW_OK;
}
-void LegacyCaptureDevice::_datafeed_callback(
- shared_ptr<sigrok::Device> device,
- shared_ptr<sigrok::Packet> packet)
+bool LegacyDecoder::start_vfunc()
{
- (void) device;
- switch (packet->type()->id()) {
- case SR_DF_LOGIC:
- {
- auto logic = static_pointer_cast<sigrok::Logic>(packet->payload());
- auto mem = Gst::Memory::create(
- Gst::MEMORY_FLAG_READONLY,
- logic->data_pointer(),
- logic->data_length(),
- 0,
- logic->data_length());
- auto buf = Gst::Buffer::create();
- buf->append_memory(move(mem));
- _src_pad->push(move(buf));
- break;
- }
- case SR_DF_END:
- _session->stop();
- _src_pad->push_event(Gst::EventEos::create());
- break;
- default:
- break;
- }
+ abs_ss_ = 0;
+ srd_session_start(session_);
+
+ return true;
}
-void LegacyCaptureDevice::_run()
+bool LegacyDecoder::stop_vfunc()
{
- _session = _libsigrok_device->driver()->parent()->create_session();
- _session->add_device(_libsigrok_device);
- _session->add_datafeed_callback(bind(&LegacyCaptureDevice::_datafeed_callback, this, _1, _2));
- _session->start();
- _session->run();
- _task->stop();
+ srd_session_terminate_reset(session_);
+
+ return true;
}
+#endif
}
projects / libsigrokflow.git / blobdiff