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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
// Copyright 2015 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_BASE_ANDROID_MEDIA_CODEC_VIDEO_DECODER_H_
#define MEDIA_BASE_ANDROID_MEDIA_CODEC_VIDEO_DECODER_H_
#include <set>
#include "media/base/android/media_codec_decoder.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gl/android/scoped_java_surface.h"
namespace media {
// Video decoder for MediaCodecPlayer
class MediaCodecVideoDecoder : public MediaCodecDecoder {
public:
// Typedefs for the notification callbacks
typedef base::Callback<void(const gfx::Size& video_size)>
VideoSizeChangedCallback;
// For parameters see media_codec_decoder.h
// update_current_time_cb: callback that reports current playback time.
// Called for released output frame,
// video_size_changed_cb: reports the new video size,
// codec_created_cb: reports that video codec has been created. A controller
// class might use it to release more resources so that this
// decoder can use them.
MediaCodecVideoDecoder(
const scoped_refptr<base::SingleThreadTaskRunner>& media_runner,
const base::Closure& request_data_cb,
const base::Closure& starvation_cb,
const base::Closure& stop_done_cb,
const base::Closure& error_cb,
const SetTimeCallback& update_current_time_cb,
const VideoSizeChangedCallback& video_size_changed_cb,
const base::Closure& codec_created_cb);
~MediaCodecVideoDecoder() override;
const char* class_name() const override;
bool HasStream() const override;
void SetDemuxerConfigs(const DemuxerConfigs& configs) override;
void ReleaseDecoderResources() override;
// Stores the video surface to use with upcoming Configure()
void SetVideoSurface(gfx::ScopedJavaSurface surface);
// Returns true if there is a video surface to use.
bool HasVideoSurface() const;
protected:
bool IsCodecReconfigureNeeded(const DemuxerConfigs& curr,
const DemuxerConfigs& next) const override;
ConfigStatus ConfigureInternal() override;
void SynchronizePTSWithTime(base::TimeDelta current_time) override;
void OnOutputFormatChanged() override;
void Render(int buffer_index,
size_t offset,
size_t size,
bool render_output,
base::TimeDelta pts,
bool eos_encountered) override;
int NumDelayedRenderTasks() const override;
void ClearDelayedBuffers(bool release) override;
#ifndef NDEBUG
void VerifyUnitIsKeyFrame(const AccessUnit* unit) const override;
#endif
private:
// A helper method that releases output buffers and does
// post-release checks. Might be called by Render() or posted
// for later execution.
void ReleaseOutputBuffer(int buffer_index,
base::TimeDelta pts,
size_t size,
bool render,
bool eos_encountered);
// Data.
// Configuration received from demuxer
DemuxerConfigs configs_;
// Video surface that we render to.
gfx::ScopedJavaSurface surface_;
// Reports current playback time to the callee.
SetTimeCallback update_current_time_cb_;
// Informs the callee that video size is changed.
VideoSizeChangedCallback video_size_changed_cb_;
// Informs the callee that the MediaCodec is created.
base::Closure codec_created_cb_;
// Current video size to be sent with |video_size_changed_cb_|.
gfx::Size video_size_;
// Indices of output buffers that are posted for rendering.
std::set<int> delayed_buffers_;
// Associate presentation timestamps with time.
base::TimeTicks start_time_ticks_;
base::TimeDelta start_pts_;
// Mantain the last seen PTS for stand-alone EOS.
base::TimeDelta last_seen_pts_;
DISALLOW_COPY_AND_ASSIGN(MediaCodecVideoDecoder);
};
} // namespace media
#endif // MEDIA_BASE_ANDROID_MEDIA_CODEC_VIDEO_DECODER_H_
|
