Basic use implementation for MediaStream from Canvas: captureStream()

content/renderer/renderer_blink_platform_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/renderer_blink_platform_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
@@ skipping 40 matching lines @@
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/renderer/battery_status/battery_status_dispatcher.h"
 #include "content/renderer/cache_storage/webserviceworkercachestorage_impl.h"
 #include "content/renderer/device_sensors/device_light_event_pump.h"
 #include "content/renderer/device_sensors/device_motion_event_pump.h"
 #include "content/renderer/device_sensors/device_orientation_absolute_event_pump.h"
 #include "content/renderer/device_sensors/device_orientation_event_pump.h"
 #include "content/renderer/dom_storage/webstoragenamespace_impl.h"
 #include "content/renderer/gamepad_shared_memory_reader.h"
 #include "content/renderer/media/audio_decoder.h"
+#include "content/renderer/media/canvas_capture_handler.h"
 #include "content/renderer/media/media_recorder_handler.h"
 #include "content/renderer/media/renderer_webaudiodevice_impl.h"
 #include "content/renderer/media/renderer_webmidiaccessor_impl.h"
 #include "content/renderer/media/rtc_certificate_generator.h"
 #include "content/renderer/render_thread_impl.h"
 #include "content/renderer/renderer_clipboard_delegate.h"
 #include "content/renderer/screen_orientation/screen_orientation_observer.h"
 #include "content/renderer/webclipboard_impl.h"
 #include "content/renderer/webgraphicscontext3d_provider_impl.h"
 #include "content/renderer/webpublicsuffixlist_impl.h"
@@ skipping 60 matching lines @@
 #define WebScrollbarBehaviorImpl blink::WebScrollbarBehavior
 #endif
 
 #if defined(ENABLE_WEBRTC)
 #include "content/renderer/media/webrtc/peer_connection_dependency_factory.h"
 #endif
 
 using blink::Platform;
 using blink::WebAudioDevice;
 using blink::WebBlobRegistry;
+using blink::WebCanvasCaptureHandler;
 using blink::WebDatabaseObserver;
 using blink::WebFileInfo;
 using blink::WebFileSystem;
 using blink::WebGamepad;
 using blink::WebGamepads;
 using blink::WebIDBFactory;
 using blink::WebMIDIAccessor;
 using blink::WebMediaRecorderHandler;
+using blink::WebMediaStream;
 using blink::WebMediaStreamCenter;
 using blink::WebMediaStreamCenterClient;
 using blink::WebMimeRegistry;
 using blink::WebRTCPeerConnectionHandler;
 using blink::WebRTCPeerConnectionHandlerClient;
 using blink::WebStorageNamespace;
+using blink::WebSize;
 using blink::WebString;
 using blink::WebURL;
 using blink::WebVector;
 
 namespace content {
 
 namespace {
 
 bool g_sandbox_enabled = true;
 double g_test_device_light_data = -1;
@@ skipping 765 matching lines @@
 
 // static
 bool RendererBlinkPlatformImpl::SetSandboxEnabledForTesting(bool enable) {
   bool was_enabled = g_sandbox_enabled;
   g_sandbox_enabled = enable;
   return was_enabled;
 }
 
 //------------------------------------------------------------------------------
 
+WebCanvasCaptureHandler* RendererBlinkPlatformImpl::createCanvasCaptureHandler(
+    const WebSize& size,
+    double frame_rate,
+    WebMediaStream* stream) {
+  return new CanvasCaptureHandler(size, frame_rate, stream);
+}
+
+//------------------------------------------------------------------------------
+
 blink::WebSpeechSynthesizer* RendererBlinkPlatformImpl::createSpeechSynthesizer(
     blink::WebSpeechSynthesizerClient* client) {
   return GetContentClient()->renderer()->OverrideSpeechSynthesizer(client);
 }
 
 //------------------------------------------------------------------------------
 
 blink::WebGraphicsContext3D*
 RendererBlinkPlatformImpl::createOffscreenGraphicsContext3D(
     const blink::WebGraphicsContext3D::Attributes& attributes) {
@@ skipping 321 matching lines @@
 //------------------------------------------------------------------------------
 
 void RendererBlinkPlatformImpl::MockBatteryStatusChangedForTesting(
     const blink::WebBatteryStatus& status) {
   if (!g_test_battery_status_listener)
     return;
   g_test_battery_status_listener->updateBatteryStatus(status);
 }
 
 }  // namespace content