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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "media/base/android/media_statistics.h" | 5 #include "media/base/android/media_statistics.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/metrics/histogram_macros.h" | 8 #include "base/metrics/histogram_macros.h" |
9 #include "media/base/android/demuxer_stream_player_params.h" | 9 #include "media/base/android/demuxer_stream_player_params.h" |
10 | 10 |
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34 ++late; | 34 ++late; |
35 } | 35 } |
36 | 36 |
37 MediaStatistics::MediaStatistics() {} | 37 MediaStatistics::MediaStatistics() {} |
38 | 38 |
39 MediaStatistics::~MediaStatistics() {} | 39 MediaStatistics::~MediaStatistics() {} |
40 | 40 |
41 void MediaStatistics::Start(base::TimeDelta current_playback_time) { | 41 void MediaStatistics::Start(base::TimeDelta current_playback_time) { |
42 DVLOG(1) << __FUNCTION__; | 42 DVLOG(1) << __FUNCTION__; |
43 | 43 |
44 if (start_time_ == kNoTimestamp()) { | 44 if (start_time_ == kNoTimestamp) { |
45 Clear(); | 45 Clear(); |
46 start_time_ = current_playback_time; | 46 start_time_ = current_playback_time; |
47 } | 47 } |
48 } | 48 } |
49 | 49 |
50 void MediaStatistics::StopAndReport(base::TimeDelta current_playback_time) { | 50 void MediaStatistics::StopAndReport(base::TimeDelta current_playback_time) { |
51 DVLOG(1) << __FUNCTION__; | 51 DVLOG(1) << __FUNCTION__; |
52 | 52 |
53 if (start_time_ == kNoTimestamp()) | 53 if (start_time_ == kNoTimestamp) |
54 return; // skip if there was no prior Start(). | 54 return; // skip if there was no prior Start(). |
55 | 55 |
56 if (current_playback_time == kNoTimestamp()) { | 56 if (current_playback_time == kNoTimestamp) { |
57 // Cancel the start event and skip if current time is unknown. | 57 // Cancel the start event and skip if current time is unknown. |
58 start_time_ = kNoTimestamp(); | 58 start_time_ = kNoTimestamp; |
59 return; | 59 return; |
60 } | 60 } |
61 | 61 |
62 base::TimeDelta duration = current_playback_time - start_time_; | 62 base::TimeDelta duration = current_playback_time - start_time_; |
63 | 63 |
64 // Reset start time. | 64 // Reset start time. |
65 start_time_ = kNoTimestamp(); | 65 start_time_ = kNoTimestamp; |
66 | 66 |
67 if (duration < base::TimeDelta::FromSeconds(kMinDurationInSeconds)) | 67 if (duration < base::TimeDelta::FromSeconds(kMinDurationInSeconds)) |
68 return; // duration is too short. | 68 return; // duration is too short. |
69 | 69 |
70 if (duration > base::TimeDelta::FromSeconds(kMaxDurationInSeconds)) | 70 if (duration > base::TimeDelta::FromSeconds(kMaxDurationInSeconds)) |
71 return; // duration is too long. | 71 return; // duration is too long. |
72 | 72 |
73 Report(duration); | 73 Report(duration); |
74 } | 74 } |
75 | 75 |
76 void MediaStatistics::Clear() { | 76 void MediaStatistics::Clear() { |
77 start_time_ = kNoTimestamp(); | 77 start_time_ = kNoTimestamp; |
78 audio_frame_stats_.Clear(); | 78 audio_frame_stats_.Clear(); |
79 video_frame_stats_.Clear(); | 79 video_frame_stats_.Clear(); |
80 num_starvations_ = 0; | 80 num_starvations_ = 0; |
81 } | 81 } |
82 | 82 |
83 void MediaStatistics::Report(base::TimeDelta duration) { | 83 void MediaStatistics::Report(base::TimeDelta duration) { |
84 DVLOG(1) << __FUNCTION__ << " duration:" << duration | 84 DVLOG(1) << __FUNCTION__ << " duration:" << duration |
85 << " audio frames:" | 85 << " audio frames:" |
86 << audio_frame_stats_.late << "/" << audio_frame_stats_.total | 86 << audio_frame_stats_.late << "/" << audio_frame_stats_.total |
87 << " video frames:" | 87 << " video frames:" |
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116 | 116 |
117 uint32_t total_frames = audio_frame_stats_.total ? audio_frame_stats_.total | 117 uint32_t total_frames = audio_frame_stats_.total ? audio_frame_stats_.total |
118 : video_frame_stats_.total; | 118 : video_frame_stats_.total; |
119 if (total_frames) { | 119 if (total_frames) { |
120 UMA_HISTOGRAM_COUNTS("Media.MSE.Starvations", | 120 UMA_HISTOGRAM_COUNTS("Media.MSE.Starvations", |
121 kOneMillion * num_starvations_ / total_frames); | 121 kOneMillion * num_starvations_ / total_frames); |
122 } | 122 } |
123 } | 123 } |
124 | 124 |
125 } // namespace media | 125 } // namespace media |
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