]> sigrok.org Git - libsigrokflow.git/blob - src/main.cpp
Factor out src/legacy_output.cpp.
[libsigrokflow.git] / src / main.cpp
1 /*
2  * This file is part of the libsigrokflow project.
3  *
4  * Copyright (C) 2018 Martin Ling <martin-sigrok@earth.li>
5  * Copyright (C) 2018 Uwe Hermann <uwe@hermann-uwe.de>
6  *
7  * This program is free software: you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation, either version 3 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
19  */
20
21 #include <config.h>
22 #include <libsigrokflow/libsigrokflow.hpp>
23
24 namespace Srf
25 {
26
27 using namespace std;
28
29 Sink::Sink(GstBaseSink *gobj) :
30         Gst::BaseSink(gobj)
31 {
32 }
33
34 Device::Device(GstElement *gobj) :
35         Gst::Element(gobj)
36 {
37 }
38
39 CaptureDevice::CaptureDevice(GstElement *gobj) :
40         Device(gobj)
41 {
42 }
43
44 #ifdef HAVE_LIBSIGROKDECODE
45 void LegacyDecoder::class_init(Gst::ElementClass<LegacyDecoder> *klass)
46 {
47         klass->set_metadata("sigrok legacy decoder",
48                         "Sink", "Wrapper for protocol decoders using legacy libsigrokdecode APIs",
49                         "Uwe Hermann");
50
51         klass->add_pad_template(Gst::PadTemplate::create(
52                         "sink",
53                         Gst::PAD_SINK,
54                         Gst::PAD_ALWAYS,
55                         Gst::Caps::create_any()));
56 }
57
58 bool LegacyDecoder::register_element(Glib::RefPtr<Gst::Plugin> plugin)
59 {
60         Gst::ElementFactory::register_element(plugin, "sigrok_legacy_decoder",
61                         0, Gst::register_mm_type<LegacyDecoder>(
62                                 "sigrok_legacy_decoder"));
63
64         return true;
65 }
66
67 LegacyDecoder::LegacyDecoder(GstBaseSink *gobj) :
68         Glib::ObjectBase(typeid(LegacyDecoder)),
69         Sink(gobj)
70 {
71 }
72
73 Glib::RefPtr<LegacyDecoder>LegacyDecoder::create(
74         struct srd_session *libsigrokdecode_session, uint64_t unitsize)
75 {
76         auto element = Gst::ElementFactory::create_element("sigrok_legacy_decoder");
77         if (!element)
78                 throw runtime_error("Failed to create element - plugin not registered?");
79         auto decoder = Glib::RefPtr<LegacyDecoder>::cast_static(element);
80         decoder->session_ = libsigrokdecode_session;
81         decoder->unitsite_ = unitsize;
82
83         return decoder;
84 }
85
86 struct srd_session *LegacyDecoder::libsigrokdecode_session()
87 {
88         return session_;
89 }
90
91 Gst::FlowReturn LegacyDecoder::render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer)
92 {
93         Gst::MapInfo info;
94         buffer->map(info, Gst::MAP_READ);
95         uint64_t num_samples = info.get_size() / unitsite_;
96         srd_session_send(session_, abs_ss_, abs_ss_ + num_samples,
97                 info.get_data(), info.get_size(), unitsite_);
98         abs_ss_ += num_samples;
99         buffer->unmap(info);
100
101         return Gst::FLOW_OK;
102 }
103
104 bool LegacyDecoder::start_vfunc()
105 {
106         abs_ss_ = 0;
107         srd_session_start(session_);
108
109         return true;
110 }
111
112 bool LegacyDecoder::stop_vfunc()
113 {
114         srd_session_terminate_reset(session_);
115
116         return true;
117 }
118 #endif
119
120 }