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
118
119
120
121
122
123
|
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/cast_streaming/browser/control/renderer_control_multiplexer.h"
#include "base/notimplemented.h"
#include "base/task/bind_post_task.h"
#include "base/task/sequenced_task_runner.h"
#include "base/time/time.h"
namespace cast_streaming {
namespace {
// The delay that should be used between receiving a call to TryStartPlayback
// and attempting to start the Renderer with a StartPlayingFrom() call.
constexpr base::TimeDelta kStartPlaybackDelay = base::Milliseconds(500);
} // namespace
RendererControlMultiplexer::RendererControlMultiplexer(
mojo::Remote<media::mojom::Renderer> renderer_remote,
scoped_refptr<base::SequencedTaskRunner> task_runner)
: renderer_remote_(std::move(renderer_remote)),
task_runner_(std::move(task_runner)),
weak_factory_(this) {
renderer_remote_.set_disconnect_handler(base::BindPostTask(
task_runner_,
base::BindOnce(&RendererControlMultiplexer::OnMojoDisconnect,
weak_factory_.GetWeakPtr())));
}
RendererControlMultiplexer::~RendererControlMultiplexer() = default;
void RendererControlMultiplexer::RegisterController(
mojo::PendingReceiver<media::mojom::Renderer> controls) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
DCHECK(controls);
auto bound_controls =
std::make_unique<mojo::Receiver<media::mojom::Renderer>>(
this, std::move(controls));
receiver_list_.push_back(std::move(bound_controls));
}
void RendererControlMultiplexer::TryStartPlayback(base::TimeDelta time) {
task_runner_->PostDelayedTask(
FROM_HERE,
base::BindOnce(&RendererControlMultiplexer::TryStartPlaybackAfterDelay,
weak_factory_.GetWeakPtr(), std::move(time)),
kStartPlaybackDelay);
}
void RendererControlMultiplexer::TryStartPlaybackAfterDelay(
base::TimeDelta time) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
if (is_playback_ongoing_) {
return;
}
StartPlayingFrom(time + kStartPlaybackDelay);
SetPlaybackRate(1.0);
}
void RendererControlMultiplexer::StartPlayingFrom(base::TimeDelta time) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
if (!is_playback_ongoing_) {
DVLOG(1) << "Will start playing from time: " << time;
renderer_remote_->StartPlayingFrom(time);
is_playback_ongoing_ = true;
}
}
void RendererControlMultiplexer::SetPlaybackRate(double playback_rate) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
renderer_remote_->SetPlaybackRate(playback_rate);
}
void RendererControlMultiplexer::SetVolume(float volume) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
renderer_remote_->SetVolume(volume);
}
void RendererControlMultiplexer::SetCdm(
const std::optional<::base::UnguessableToken>& cdm_id,
SetCdmCallback callback) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
renderer_remote_->SetCdm(cdm_id, std::move(callback));
}
void RendererControlMultiplexer::SetLatencyHint(
std::optional<base::TimeDelta> latency_hint) {
NOTIMPLEMENTED();
}
void RendererControlMultiplexer::Initialize(
mojo::PendingAssociatedRemote<media::mojom::RendererClient> client,
std::optional<
std::vector<::mojo::PendingRemote<::media::mojom::DemuxerStream>>>
streams,
InitializeCallback callback) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
renderer_remote_->Initialize(std::move(client), std::move(streams),
std::move(callback));
}
void RendererControlMultiplexer::Flush(FlushCallback callback) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
renderer_remote_->Flush(
base::BindOnce(&RendererControlMultiplexer::OnFlushComplete,
weak_factory_.GetWeakPtr(), std::move(callback)));
}
void RendererControlMultiplexer::OnMojoDisconnect() {
receiver_list_.clear();
}
void RendererControlMultiplexer::OnFlushComplete(FlushCallback callback) {
DCHECK(task_runner_->RunsTasksInCurrentSequence());
is_playback_ongoing_ = false;
std::move(callback).Run();
}
} // namespace cast_streaming
|
