blob: 04fba9298e39a6f6ec43bf1ef654ba9eec6425f3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// Copyright 2013 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.
#ifndef CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_VIDEO_SINK_H_
#define CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_VIDEO_SINK_H_
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/time/time.h"
#include "content/common/content_export.h"
#include "content/public/renderer/media_stream_sink.h"
#include "media/base/video_capturer_source.h"
namespace blink {
class WebMediaStreamTrack;
}
namespace content {
typedef media::VideoCapturerSource::VideoCaptureDeliverFrameCB
VideoCaptureDeliverFrameCB;
// MediaStreamVideoSink is an interface used for receiving video frames from a
// Video Stream Track or a Video Source.
// http://dev.w3.org/2011/webrtc/editor/getusermedia.html
// All methods calls will be done from the main render thread.
class CONTENT_EXPORT MediaStreamVideoSink : public MediaStreamSink {
public:
// An implementation of MediaStreamVideoSink should call AddToVideoTrack when
// it is ready to receive data from a video track. Before the implementation
// is destroyed, RemoveFromVideoTrack must be called.
//
// Calls to these methods must be done on the main render thread.
// Note that |callback| for frame delivery happens on the IO thread.
//
// Calling RemoveFromVideoTrack also not stop frame delivery through the
// callback immediately because it may happen on another thread.
// The added callback will be reset on the render thread.
static void AddToVideoTrack(MediaStreamVideoSink* sink,
const VideoCaptureDeliverFrameCB& callback,
const blink::WebMediaStreamTrack& track);
static void RemoveFromVideoTrack(MediaStreamVideoSink* sink,
const blink::WebMediaStreamTrack& track);
protected:
~MediaStreamVideoSink() override {}
};
} // namespace content
#endif // CONTENT_PUBLIC_RENDERER_MEDIA_STREAM_VIDEO_SINK_H_
|
