blob: 0b27493e908d5a52b17b60cb855fc1d36a43517c (
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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
// Copyright 2017 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 MEDIA_GPU_ANDROID_CODEC_IMAGE_GROUP_H_
#define MEDIA_GPU_ANDROID_CODEC_IMAGE_GROUP_H_
#include <unordered_set>
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "media/gpu/android/codec_image.h"
#include "media/gpu/android/promotion_hint_aggregator.h"
#include "media/gpu/media_gpu_export.h"
namespace base {
class SequencedTaskRunner;
}
namespace media {
class AndroidOverlay;
class CodecImage;
class CodecSurfaceBundle;
// Object that lives on the GPU thread that knows about all CodecImages that
// share the same bundle. We are responsible for keeping the surface bundle
// around while any image is using it. If the overlay is destroyed, then we
// unback the images.
//
// We're held by the codec images that use us, so that we last at least as long
// as each of them. We might also be held by the VideoFrameFactory, if it's
// going to add new images to the group.
//
// Note that this class must be constructed on the thread on which the surface
// bundle (and overlay) may be accessed. All other methods will run on the
// provided task runner.
class MEDIA_GPU_EXPORT CodecImageGroup
: public base::RefCountedThreadSafe<CodecImageGroup> {
public:
// NOTE: Construction happens on the correct thread to access |bundle| and
// any overlay it contains. All other access to this class will happen on
// |task_runner|, including destruction.
CodecImageGroup(scoped_refptr<base::SequencedTaskRunner> task_runner,
scoped_refptr<CodecSurfaceBundle> bundle);
// Notify us that |image| uses |surface_bundle_|. We will remove |image| from
// the group automatically when it's no longer using |surface_bundle_|.
void AddCodecImage(CodecImage* image);
protected:
virtual ~CodecImageGroup();
friend class base::RefCountedThreadSafe<CodecImageGroup>;
friend class base::DeleteHelper<CodecImageGroup>;
// Notify us that |image| is no longer in use.
void OnCodecImageUnused(CodecImage* image);
// Notify us that our overlay surface has been destroyed.
void OnSurfaceDestroyed(AndroidOverlay*);
private:
// Remember that this lives on some other thread. Do not actually use it.
scoped_refptr<CodecSurfaceBundle> surface_bundle_;
// All the images that use |surface_bundle_|.
std::unordered_set<CodecImage*> images_;
// Task runner for everything.
scoped_refptr<base::SequencedTaskRunner> task_runner_;
base::WeakPtrFactory<CodecImageGroup> weak_this_factory_{this};
};
} // namespace media
#endif // MEDIA_GPU_ANDROID_CODEC_IMAGE_GROUP_H_
|
