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
29 namespace webrtc {
30
VideoTrackRenderers()31 VideoTrackRenderers::VideoTrackRenderers()
32 : width_(0),
33 height_(0),
34 enabled_(true) {
35 }
36
~VideoTrackRenderers()37 VideoTrackRenderers::~VideoTrackRenderers() {
38 }
39
AddRenderer(VideoRendererInterface * renderer)40 void 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
RemoveRenderer(VideoRendererInterface * renderer)50 void 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
SetEnabled(bool enable)61 void VideoTrackRenderers::SetEnabled(bool enable) {
62 rtc::CritScope cs(&critical_section_);
63 enabled_ = enable;
64 }
65
SetSize(int width,int height,int reserved)66 bool 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
RenderFrame(const cricket::VideoFrame * frame)78 bool 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