1/*
2 * Copyright (C) 2018 Metrological Group B.V.
3 * Author: Thibault Saunier <tsaunier@igalia.com>
4 * Author: Alejandro G. Castro <alex@igalia.com>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library 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 GNU
14 * Library General Public License for more details.
15 *
16 * You should have received a copy of the GNU Library General Public License
17 * aint with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 */
21
22#pragma once
23
24#if ENABLE(MEDIA_STREAM) && USE(LIBWEBRTC) && USE(GSTREAMER)
25#include "CaptureDevice.h"
26#include "GStreamerVideoCapturer.h"
27#include "RealtimeVideoSource.h"
28
29namespace WebCore {
30
31class GStreamerVideoCaptureSource : public RealtimeVideoSource {
32public:
33 static CaptureSourceOrError create(String&& deviceID, String&& hashSalt, const MediaConstraints*);
34 WEBCORE_EXPORT static VideoCaptureFactory& factory();
35
36 // FIXME: Implement this.
37 WEBCORE_EXPORT static DisplayCaptureFactory& displayFactory();
38
39 const RealtimeMediaSourceCapabilities& capabilities() override;
40 const RealtimeMediaSourceSettings& settings() override;
41 GstElement* pipeline() { return m_capturer->pipeline(); }
42 GStreamerCapturer* capturer() { return m_capturer.get(); }
43
44protected:
45 GStreamerVideoCaptureSource(String&& deviceID, String&& name, String&& hashSalt, const gchar * source_factory);
46 GStreamerVideoCaptureSource(GStreamerCaptureDevice, String&& hashSalt);
47 virtual ~GStreamerVideoCaptureSource();
48 void startProducingData() override;
49 void stopProducingData() override;
50 bool canResizeVideoFrames() const final { return true; }
51 void generatePresets() final;
52
53
54 mutable Optional<RealtimeMediaSourceCapabilities> m_capabilities;
55 mutable Optional<RealtimeMediaSourceSettings> m_currentSettings;
56 CaptureDevice::DeviceType deviceType() const override { return CaptureDevice::DeviceType::Camera; }
57
58private:
59 static GstFlowReturn newSampleCallback(GstElement*, GStreamerVideoCaptureSource*);
60
61 bool isCaptureSource() const final { return true; }
62 void settingsDidChange(OptionSet<RealtimeMediaSourceSettings::Flag>) final;
63
64 std::unique_ptr<GStreamerVideoCapturer> m_capturer;
65};
66
67} // namespace WebCore
68
69#endif // ENABLE(MEDIA_STREAM) && USE(LIBWEBRTC) && USE(GSTREAMER)
70