1 // Copyright 2014 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.
5 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_STREAM_VIDEO_TRACK_HOST_H_
6 #define CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_STREAM_VIDEO_TRACK_HOST_H_
8 #include "base/compiler_specific.h"
9 #include "base/memory/weak_ptr.h"
10 #include "content/public/renderer/media_stream_video_sink.h"
11 #include "content/renderer/media/media_stream_video_source.h"
12 #include "content/renderer/pepper/pepper_media_stream_track_host_base.h"
13 #include "media/base/video_frame.h"
14 #include "ppapi/c/ppb_video_frame.h"
15 #include "ppapi/shared_impl/media_stream_video_track_shared.h"
16 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
17 #include "ui/gfx/size.h"
21 class PepperMediaStreamVideoTrackHost : public PepperMediaStreamTrackHostBase,
22 public MediaStreamVideoSink,
23 public MediaStreamVideoSource {
25 // Input mode constructor.
26 // In input mode, this class passes video frames from |track| to the
27 // associated pepper plugin.
28 PepperMediaStreamVideoTrackHost(RendererPpapiHost* host,
31 const blink::WebMediaStreamTrack& track);
33 // Output mode constructor.
34 // In output mode, this class passes video frames from the associated
35 // pepper plugin to a newly created blink::WebMediaStreamTrack.
36 PepperMediaStreamVideoTrackHost(RendererPpapiHost* host,
38 PP_Resource resource);
40 virtual bool IsMediaStreamVideoTrackHost() OVERRIDE;
42 blink::WebMediaStreamTrack track() { return track_; }
46 virtual ~PepperMediaStreamVideoTrackHost();
50 // PepperMediaStreamTrackHostBase overrides:
51 virtual void OnClose() OVERRIDE;
52 virtual int32_t OnHostMsgEnqueueBuffer(
53 ppapi::host::HostMessageContext* context, int32_t index) OVERRIDE;
55 // Sends frame with |index| to |track_|.
56 int32_t SendFrameToTrack(int32_t index);
58 void OnVideoFrame(const scoped_refptr<media::VideoFrame>& frame,
59 const media::VideoCaptureFormat& format);
61 // MediaStreamVideoSource overrides:
62 virtual void GetCurrentSupportedFormats(
63 int max_requested_width,
64 int max_requested_height,
65 const VideoCaptureDeviceFormatsCB& callback) OVERRIDE;
67 virtual void StartSourceImpl(
68 const media::VideoCaptureParams& params,
69 const VideoCaptureDeliverFrameCB& frame_callback) OVERRIDE;
71 virtual void StopSourceImpl() OVERRIDE;
73 // ResourceHost overrides:
74 virtual void DidConnectPendingHostToResource() OVERRIDE;
76 // ResourceMessageHandler overrides:
77 virtual int32_t OnResourceMessageReceived(
78 const IPC::Message& msg,
79 ppapi::host::HostMessageContext* context) OVERRIDE;
82 int32_t OnHostMsgConfigure(
83 ppapi::host::HostMessageContext* context,
84 const ppapi::MediaStreamVideoTrackShared::Attributes& attributes);
86 void InitBlinkTrack();
87 void OnTrackStarted(MediaStreamSource* source, bool success);
89 blink::WebMediaStreamTrack track_;
91 // True if it has been added to |blink::WebMediaStreamTrack| as a sink.
95 int32_t number_of_buffers_;
97 // Size of frames which are received from MediaStreamVideoSink.
98 gfx::Size source_frame_size_;
100 // Plugin specified frame size.
101 gfx::Size plugin_frame_size_;
103 // Format of frames which are received from MediaStreamVideoSink.
104 PP_VideoFrame_Format source_frame_format_;
106 // Plugin specified frame format.
107 PP_VideoFrame_Format plugin_frame_format_;
109 // The size of frame pixels in bytes.
110 uint32_t frame_data_size_;
112 // TODO(ronghuawu): Remove |type_| and split PepperMediaStreamVideoTrackHost
113 // into 2 classes for read and write.
115 bool output_started_;
117 // Internal class used for delivering video frames on the IO-thread to
118 // the MediaStreamVideoSource implementation.
119 class FrameDeliverer;
120 scoped_refptr<FrameDeliverer> frame_deliverer_;
122 base::WeakPtrFactory<PepperMediaStreamVideoTrackHost> weak_factory_;
124 DISALLOW_COPY_AND_ASSIGN(PepperMediaStreamVideoTrackHost);
127 } // namespace content
129 #endif // CONTENT_RENDERER_PEPPER_PEPPER_MEDIA_STREAM_VIDEO_TRACK_HOST_H_