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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> | |
d59dd5ff UH |
22 | #include <libsigrokflow/legacy_decoder.hpp> |
23 | #include <gstreamermm/private/basesink_p.h> | |
6cb4dbbf UH |
24 | |
25 | namespace Srf | |
26 | { | |
27 | ||
28 | using namespace std; | |
29 | ||
30 | #ifdef HAVE_LIBSIGROKDECODE | |
31 | void LegacyDecoder::class_init(Gst::ElementClass<LegacyDecoder> *klass) | |
32 | { | |
33 | klass->set_metadata("sigrok legacy decoder", | |
34 | "Sink", "Wrapper for protocol decoders using legacy libsigrokdecode APIs", | |
35 | "Uwe Hermann"); | |
36 | ||
37 | klass->add_pad_template(Gst::PadTemplate::create( | |
38 | "sink", | |
39 | Gst::PAD_SINK, | |
40 | Gst::PAD_ALWAYS, | |
41 | Gst::Caps::create_any())); | |
42 | } | |
43 | ||
44 | bool LegacyDecoder::register_element(Glib::RefPtr<Gst::Plugin> plugin) | |
45 | { | |
46 | Gst::ElementFactory::register_element(plugin, "sigrok_legacy_decoder", | |
47 | 0, Gst::register_mm_type<LegacyDecoder>( | |
48 | "sigrok_legacy_decoder")); | |
49 | ||
50 | return true; | |
51 | } | |
52 | ||
53 | LegacyDecoder::LegacyDecoder(GstBaseSink *gobj) : | |
54 | Glib::ObjectBase(typeid(LegacyDecoder)), | |
55 | Sink(gobj) | |
56 | { | |
57 | } | |
58 | ||
59 | Glib::RefPtr<LegacyDecoder>LegacyDecoder::create( | |
60 | struct srd_session *libsigrokdecode_session, uint64_t unitsize) | |
61 | { | |
62 | auto element = Gst::ElementFactory::create_element("sigrok_legacy_decoder"); | |
63 | if (!element) | |
64 | throw runtime_error("Failed to create element - plugin not registered?"); | |
65 | auto decoder = Glib::RefPtr<LegacyDecoder>::cast_static(element); | |
66 | decoder->session_ = libsigrokdecode_session; | |
67 | decoder->unitsite_ = unitsize; | |
68 | ||
69 | return decoder; | |
70 | } | |
71 | ||
72 | struct srd_session *LegacyDecoder::libsigrokdecode_session() | |
73 | { | |
74 | return session_; | |
75 | } | |
76 | ||
77 | Gst::FlowReturn LegacyDecoder::render_vfunc(const Glib::RefPtr<Gst::Buffer> &buffer) | |
78 | { | |
79 | Gst::MapInfo info; | |
80 | buffer->map(info, Gst::MAP_READ); | |
81 | uint64_t num_samples = info.get_size() / unitsite_; | |
82 | srd_session_send(session_, abs_ss_, abs_ss_ + num_samples, | |
83 | info.get_data(), info.get_size(), unitsite_); | |
84 | abs_ss_ += num_samples; | |
85 | buffer->unmap(info); | |
86 | ||
87 | return Gst::FLOW_OK; | |
88 | } | |
89 | ||
90 | bool LegacyDecoder::start_vfunc() | |
91 | { | |
92 | abs_ss_ = 0; | |
93 | srd_session_start(session_); | |
94 | ||
95 | return true; | |
96 | } | |
97 | ||
98 | bool LegacyDecoder::stop_vfunc() | |
99 | { | |
100 | srd_session_terminate_reset(session_); | |
101 | ||
102 | return true; | |
103 | } | |
104 | #endif | |
105 | ||
106 | } |