Implement LegacyOutput.

[libsigrokflow.git] / include / libsigrokflow / libsigrokflow.hpp

diff --git a/include/libsigrokflow/libsigrokflow.hpp b/include/libsigrokflow/libsigrokflow.hpp
index a5fc25314c57c3d518852a3fa6d40f55793ff254..e9a725ec431bc9ce8eaaacd945d86ba5d23de6b0 100644 (file)
--- a/include/libsigrokflow/libsigrokflow.hpp
+++ b/include/libsigrokflow/libsigrokflow.hpp
@@ -21,6 +21,8 @@
 #define LIBSIGROKFLOW_LIBSIGROKFLOW_HPP
 
 #include <gstreamermm.h>
+#include <gstreamermm/private/element_p.h>
+#include <gstreamermm/private/basesink_p.h>
 #include <libsigrokcxx/libsigrokcxx.hpp>
 
 namespace Srf
@@ -35,37 +37,91 @@ class Block
         /* Config API etc goes here */
 };
 
-class GstBlock :
-        public Gst::Element
+class Sink :
+        public Gst::BaseSink
 {
-        /* Operations specific to sigrok GStreamer blocks go here. */
+protected:
+        explicit Sink(GstBaseSink *gobj);
 };
 
 class Device :
-        public GstBlock
+        public Gst::Element
 {
         /* Operations specific to hardware devices go here */
+protected:
+        explicit Device(GstElement *gobj);
 };
 
 class CaptureDevice :
         public Device
 {
         /* Operations specific to capture (source) devices go here */
-protected :
-        CaptureDevice();
+protected:
+        explicit CaptureDevice(GstElement *gobj);
 };
 
 class LegacyCaptureDevice :
         public CaptureDevice
 {
 public:
-        /* Construct from libsigrok device object */
-        LegacyCaptureDevice(shared_ptr<sigrok::Device>);
+        /* Create from libsigrok device object */
+        static Glib::RefPtr<LegacyCaptureDevice> create(
+                shared_ptr<sigrok::HardwareDevice> libsigrok_device);
 
         /* Retrieve libsigrok device object */
-        shared_ptr<sigrok::Device> libsigrok_device();
+        shared_ptr<sigrok::HardwareDevice> libsigrok_device();
+
+        /* Override state change */
+        Gst::StateChangeReturn change_state_vfunc(Gst::StateChange transition);
+
+        /* Gst class init */
+        static void class_init(Gst::ElementClass<LegacyCaptureDevice> *klass);
+
+        /* Register class with plugin */
+        static bool register_element(Glib::RefPtr<Gst::Plugin> plugin);
+
+        /* Construcor used by element factory */
+        explicit LegacyCaptureDevice(GstElement *gobj);
+private:
+        shared_ptr<sigrok::HardwareDevice> _libsigrok_device;
+        Glib::RefPtr<Gst::Pad> _src_pad;
+        Glib::Threads::RecMutex _mutex;
+        Glib::RefPtr<Gst::Task> _task;
+        shared_ptr<sigrok::Session> _session;
+
+        void _datafeed_callback(shared_ptr<sigrok::Device> device,
+                        shared_ptr<sigrok::Packet> packet);
+        void _run();
+};
+
+class LegacyOutput :
+        public Sink
+{
+public:
+        /* Create from libsigrok output object */
+        static Glib::RefPtr<LegacyOutput> create(
+                shared_ptr<sigrok::Output> libsigrok_output);
+
+        /* Retrieve libsigrok output object */
+        shared_ptr<sigrok::Output> libsigrok_output();
+
+        /* Override render */
+        Gst::FlowReturn render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer);
+
+        /* Override stop */
+        bool stop_vfunc();
+
+        /* Gst class init */
+        static void class_init(Gst::ElementClass<LegacyOutput> *klass);
+
+        /* Register class with plugin */
+        static bool register_element(Glib::RefPtr<Gst::Plugin> plugin);
+
+        /* Constructor used by element factory */
+        explicit LegacyOutput(GstBaseSink *gobj);
 private:
-        shared_ptr<sigrok::Device> _device;
+        shared_ptr<sigrok::Output> _libsigrok_output;
+        Glib::RefPtr<Gst::Pad> _sink_pad;
 };