1/*
2 * libjingle
3 * Copyright 2012, Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28// FakePeriodicVideoCapturer implements a fake cricket::VideoCapturer that
29// creates video frames periodically after it has been started.
30
31#ifndef TALK_APP_WEBRTC_TEST_FAKEPERIODICVIDEOCAPTURER_H_
32#define TALK_APP_WEBRTC_TEST_FAKEPERIODICVIDEOCAPTURER_H_
33
34#include "talk/media/base/fakevideocapturer.h"
35#include "webrtc/base/thread.h"
36
37namespace webrtc {
38
39class FakePeriodicVideoCapturer : public cricket::FakeVideoCapturer {
40 public:
41  FakePeriodicVideoCapturer() {
42    std::vector<cricket::VideoFormat> formats;
43    formats.push_back(cricket::VideoFormat(1280, 720,
44            cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
45    formats.push_back(cricket::VideoFormat(640, 480,
46        cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
47    formats.push_back(cricket::VideoFormat(640, 360,
48            cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
49    formats.push_back(cricket::VideoFormat(320, 240,
50        cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
51    formats.push_back(cricket::VideoFormat(160, 120,
52        cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
53    ResetSupportedFormats(formats);
54  };
55
56  virtual cricket::CaptureState Start(const cricket::VideoFormat& format) {
57    cricket::CaptureState state = FakeVideoCapturer::Start(format);
58    if (state != cricket::CS_FAILED) {
59      rtc::Thread::Current()->Post(this, MSG_CREATEFRAME);
60    }
61    return state;
62  }
63  virtual void Stop() {
64    rtc::Thread::Current()->Clear(this);
65  }
66  // Inherited from MesageHandler.
67  virtual void OnMessage(rtc::Message* msg) {
68    if (msg->message_id == MSG_CREATEFRAME) {
69      if (IsRunning()) {
70        CaptureFrame();
71        rtc::Thread::Current()->PostDelayed(static_cast<int>(
72            GetCaptureFormat()->interval / rtc::kNumNanosecsPerMillisec),
73            this, MSG_CREATEFRAME);
74        }
75    } else {
76      FakeVideoCapturer::OnMessage(msg);
77    }
78  }
79
80 private:
81  enum {
82    // Offset  0xFF to make sure this don't collide with base class messages.
83    MSG_CREATEFRAME = 0xFF
84  };
85};
86
87}  // namespace webrtc
88
89#endif  //  TALK_APP_WEBRTC_TEST_FAKEPERIODICVIDEOCAPTURER_H_
90