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1 | /* | |
2 | * This file is part of the libsigrokflow project. | |
3 | * | |
4 | * Copyright (C) 2018 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef LIBSIGROKFLOW_LIBSIGROKFLOW_HPP | |
21 | #define LIBSIGROKFLOW_LIBSIGROKFLOW_HPP | |
22 | ||
23 | #include <gstreamermm.h> | |
24 | #include <gstreamermm/private/element_p.h> | |
25 | #include <gstreamermm/private/basesink_p.h> | |
26 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
27 | ||
28 | namespace Srf | |
29 | { | |
30 | ||
31 | using namespace std; | |
32 | ||
33 | void init(); | |
34 | ||
35 | class Block | |
36 | { | |
37 | /* Config API etc goes here */ | |
38 | }; | |
39 | ||
40 | class Sink : | |
41 | public Gst::BaseSink | |
42 | { | |
43 | protected: | |
44 | explicit Sink(GstBaseSink *gobj); | |
45 | }; | |
46 | ||
47 | class Device : | |
48 | public Gst::Element | |
49 | { | |
50 | /* Operations specific to hardware devices go here */ | |
51 | protected: | |
52 | explicit Device(GstElement *gobj); | |
53 | }; | |
54 | ||
55 | class CaptureDevice : | |
56 | public Device | |
57 | { | |
58 | /* Operations specific to capture (source) devices go here */ | |
59 | protected: | |
60 | explicit CaptureDevice(GstElement *gobj); | |
61 | }; | |
62 | ||
63 | class LegacyCaptureDevice : | |
64 | public CaptureDevice | |
65 | { | |
66 | public: | |
67 | /* Create from libsigrok device object */ | |
68 | static Glib::RefPtr<LegacyCaptureDevice> create( | |
69 | shared_ptr<sigrok::HardwareDevice> libsigrok_device); | |
70 | ||
71 | /* Retrieve libsigrok device object */ | |
72 | shared_ptr<sigrok::HardwareDevice> libsigrok_device(); | |
73 | ||
74 | /* Override state change */ | |
75 | Gst::StateChangeReturn change_state_vfunc(Gst::StateChange transition); | |
76 | ||
77 | /* Gst class init */ | |
78 | static void class_init(Gst::ElementClass<LegacyCaptureDevice> *klass); | |
79 | ||
80 | /* Register class with plugin */ | |
81 | static bool register_element(Glib::RefPtr<Gst::Plugin> plugin); | |
82 | ||
83 | /* Construcor used by element factory */ | |
84 | explicit LegacyCaptureDevice(GstElement *gobj); | |
85 | private: | |
86 | shared_ptr<sigrok::HardwareDevice> _libsigrok_device; | |
87 | Glib::RefPtr<Gst::Pad> _src_pad; | |
88 | Glib::Threads::RecMutex _mutex; | |
89 | Glib::RefPtr<Gst::Task> _task; | |
90 | shared_ptr<sigrok::Session> _session; | |
91 | ||
92 | void _datafeed_callback(shared_ptr<sigrok::Device> device, | |
93 | shared_ptr<sigrok::Packet> packet); | |
94 | void _run(); | |
95 | }; | |
96 | ||
97 | class LegacyOutput : | |
98 | public Sink | |
99 | { | |
100 | public: | |
101 | /* Create from libsigrok output object */ | |
102 | static Glib::RefPtr<LegacyOutput> create( | |
103 | shared_ptr<sigrok::Output> libsigrok_output); | |
104 | ||
105 | /* Retrieve libsigrok output object */ | |
106 | shared_ptr<sigrok::Output> libsigrok_output(); | |
107 | ||
108 | /* Override render */ | |
109 | Gst::FlowReturn render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer); | |
110 | ||
111 | /* Override stop */ | |
112 | bool stop_vfunc(); | |
113 | ||
114 | /* Gst class init */ | |
115 | static void class_init(Gst::ElementClass<LegacyOutput> *klass); | |
116 | ||
117 | /* Register class with plugin */ | |
118 | static bool register_element(Glib::RefPtr<Gst::Plugin> plugin); | |
119 | ||
120 | /* Constructor used by element factory */ | |
121 | explicit LegacyOutput(GstBaseSink *gobj); | |
122 | private: | |
123 | shared_ptr<sigrok::Output> _libsigrok_output; | |
124 | Glib::RefPtr<Gst::Pad> _sink_pad; | |
125 | }; | |
126 | ||
127 | ||
128 | } | |
129 | #endif |