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#include "talk/app/webrtc/videotrackrenderers.h"
28
29namespace webrtc {
30
31VideoTrackRenderers::VideoTrackRenderers()
32    : width_(0),
33      height_(0),
34      enabled_(true) {
35}
36
37VideoTrackRenderers::~VideoTrackRenderers() {
38}
39
40void VideoTrackRenderers::AddRenderer(VideoRendererInterface* renderer) {
41  rtc::CritScope cs(&critical_section_);
42  std::vector<RenderObserver>::iterator it =  renderers_.begin();
43  for (; it != renderers_.end(); ++it) {
44    if (it->renderer_ == renderer)
45      return;
46  }
47  renderers_.push_back(RenderObserver(renderer));
48}
49
50void VideoTrackRenderers::RemoveRenderer(VideoRendererInterface* renderer) {
51  rtc::CritScope cs(&critical_section_);
52  std::vector<RenderObserver>::iterator it =  renderers_.begin();
53  for (; it != renderers_.end(); ++it) {
54    if (it->renderer_ == renderer) {
55      renderers_.erase(it);
56      return;
57    }
58  }
59}
60
61void VideoTrackRenderers::SetEnabled(bool enable) {
62  rtc::CritScope cs(&critical_section_);
63  enabled_ = enable;
64}
65
66bool VideoTrackRenderers::SetSize(int width, int height, int reserved) {
67  rtc::CritScope cs(&critical_section_);
68  width_ = width;
69  height_ = height;
70  std::vector<RenderObserver>::iterator it = renderers_.begin();
71  for (; it != renderers_.end(); ++it) {
72    it->renderer_->SetSize(width, height);
73    it->size_set_ = true;
74  }
75  return true;
76}
77
78bool VideoTrackRenderers::RenderFrame(const cricket::VideoFrame* frame) {
79  rtc::CritScope cs(&critical_section_);
80  if (!enabled_) {
81    return true;
82  }
83  std::vector<RenderObserver>::iterator it = renderers_.begin();
84  for (; it != renderers_.end(); ++it) {
85    if (!it->size_set_) {
86      it->renderer_->SetSize(width_, height_);
87      it->size_set_ = true;
88    }
89    it->renderer_->RenderFrame(frame);
90  }
91  return true;
92}
93
94}  // namespace webrtc
95