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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "webkit/renderer/media/simple_video_frame_provider.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/location.h" | |
| 9 #include "base/message_loop/message_loop_proxy.h" | |
| 10 #include "media/base/video_frame.h" | |
| 11 | |
| 12 namespace webkit_media { | |
| 13 | |
| 14 SimpleVideoFrameProvider::SimpleVideoFrameProvider( | |
| 15 const gfx::Size& size, | |
| 16 const base::TimeDelta& frame_duration, | |
| 17 const base::Closure& error_cb, | |
| 18 const VideoFrameProvider::RepaintCB& repaint_cb) | |
| 19 : message_loop_proxy_(base::MessageLoopProxy::current()), | |
| 20 size_(size), | |
| 21 state_(kStopped), | |
| 22 frame_duration_(frame_duration), | |
| 23 error_cb_(error_cb), | |
| 24 repaint_cb_(repaint_cb) { | |
| 25 } | |
| 26 | |
| 27 SimpleVideoFrameProvider::~SimpleVideoFrameProvider() {} | |
| 28 | |
| 29 void SimpleVideoFrameProvider::Start() { | |
| 30 DVLOG(1) << "SimpleVideoFrameProvider::Start"; | |
| 31 DCHECK(message_loop_proxy_->BelongsToCurrentThread()); | |
| 32 state_ = kStarted; | |
| 33 message_loop_proxy_->PostTask( | |
| 34 FROM_HERE, | |
| 35 base::Bind(&SimpleVideoFrameProvider::GenerateFrame, this)); | |
| 36 } | |
| 37 | |
| 38 void SimpleVideoFrameProvider::Stop() { | |
| 39 DVLOG(1) << "SimpleVideoFrameProvider::Stop"; | |
| 40 DCHECK(message_loop_proxy_->BelongsToCurrentThread()); | |
| 41 state_ = kStopped; | |
| 42 } | |
| 43 | |
| 44 void SimpleVideoFrameProvider::Play() { | |
| 45 DVLOG(1) << "SimpleVideoFrameProvider::Play"; | |
| 46 DCHECK(message_loop_proxy_->BelongsToCurrentThread()); | |
| 47 if (state_ == kPaused) | |
| 48 state_ = kStarted; | |
| 49 } | |
| 50 | |
| 51 void SimpleVideoFrameProvider::Pause() { | |
| 52 DVLOG(1) << "SimpleVideoFrameProvider::Pause"; | |
| 53 DCHECK(message_loop_proxy_->BelongsToCurrentThread()); | |
| 54 if (state_ == kStarted) | |
| 55 state_ = kPaused; | |
| 56 } | |
| 57 | |
| 58 void SimpleVideoFrameProvider::GenerateFrame() { | |
| 59 DVLOG(1) << "SimpleVideoFrameProvider::GenerateFrame"; | |
| 60 DCHECK(message_loop_proxy_->BelongsToCurrentThread()); | |
| 61 if (state_ == kStopped) | |
| 62 return; | |
| 63 | |
| 64 if (state_ == kStarted) { | |
| 65 // Always allocate a new frame filled with white color. | |
| 66 scoped_refptr<media::VideoFrame> video_frame = | |
| 67 media::VideoFrame::CreateColorFrame( | |
| 68 size_, 255, 128, 128, current_time_); | |
| 69 | |
| 70 // TODO(wjia): set pixel data to pre-defined patterns if it's desired to | |
| 71 // verify frame content. | |
| 72 | |
| 73 repaint_cb_.Run(video_frame); | |
| 74 } | |
| 75 | |
| 76 current_time_ += frame_duration_; | |
| 77 message_loop_proxy_->PostDelayedTask( | |
| 78 FROM_HERE, | |
| 79 base::Bind(&SimpleVideoFrameProvider::GenerateFrame, this), | |
| 80 frame_duration_); | |
| 81 } | |
| 82 | |
| 83 } // namespace webkit_media | |
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Chromium Code Reviews
Issue 18123002:
Migrate webkit/renderer/media/ to content/renderer/media/. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src