blob: 9b87361ba1a9041b07e27ba33b213c231a7a6c99 (
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
|
// Copyright (c) 2012 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_MEDIA_LOG_H_
#define MEDIA_BASE_MEDIA_LOG_H_
#pragma once
#include "base/memory/ref_counted.h"
#include "base/synchronization/lock.h"
#include "media/base/media_export.h"
#include "media/base/media_log_event.h"
#include "media/base/pipeline.h"
#include "media/base/pipeline_status.h"
namespace media {
class MEDIA_EXPORT MediaLog : public base::RefCountedThreadSafe<MediaLog> {
public:
// Convert various enums to strings.
static const char* EventTypeToString(MediaLogEvent::Type type);
static const char* PipelineStateToString(Pipeline::State);
static const char* PipelineStatusToString(PipelineStatus);
MediaLog();
// Add an event to this log. Overriden by inheritors to actually do something
// with it.
virtual void AddEvent(scoped_ptr<MediaLogEvent> event);
// Helper methods to create events and their parameters.
scoped_ptr<MediaLogEvent> CreateEvent(MediaLogEvent::Type type);
scoped_ptr<MediaLogEvent> CreateBooleanEvent(
MediaLogEvent::Type type, const char* property, bool value);
scoped_ptr<MediaLogEvent> CreateIntegerEvent(
MediaLogEvent::Type type, const char* property, int64 value);
scoped_ptr<MediaLogEvent> CreateTimeEvent(
MediaLogEvent::Type type, const char* property, base::TimeDelta value);
scoped_ptr<MediaLogEvent> CreateLoadEvent(const std::string& url);
scoped_ptr<MediaLogEvent> CreateSeekEvent(float seconds);
scoped_ptr<MediaLogEvent> CreatePipelineStateChangedEvent(
Pipeline::State state);
scoped_ptr<MediaLogEvent> CreatePipelineErrorEvent(PipelineStatus error);
scoped_ptr<MediaLogEvent> CreateVideoSizeSetEvent(
size_t width, size_t height);
scoped_ptr<MediaLogEvent> CreateBufferedExtentsChangedEvent(
size_t start, size_t current, size_t end);
// Called when the pipeline statistics have been updated.
// This gets called every frame, so we send the most recent stats after 500ms.
// This function is NOT thread safe.
void QueueStatisticsUpdatedEvent(PipelineStatistics stats);
protected:
friend class base::RefCountedThreadSafe<MediaLog>;
virtual ~MediaLog();
private:
// Actually add a STATISTICS_UPDATED event.
void AddStatisticsUpdatedEvent();
// A unique (to this process) id for this MediaLog.
int32 id_;
// The most recent set of pipeline stats.
PipelineStatistics last_statistics_;
bool stats_update_pending_;
base::Lock stats_lock_;
DISALLOW_COPY_AND_ASSIGN(MediaLog);
};
} // namespace media
#endif // MEDIA_BASE_MEDIA_LOG_H_
|
