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1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef MEDIA_CAST_LOGGING_LOGGING_RAW_H_
6 #define MEDIA_CAST_LOGGING_LOGGING_RAW_H_
7 
8 #include <vector>
9 
10 #include "base/basictypes.h"
11 #include "base/memory/linked_ptr.h"
12 #include "base/threading/non_thread_safe.h"
13 #include "base/time/tick_clock.h"
14 #include "media/cast/logging/logging_defines.h"
15 #include "media/cast/logging/raw_event_subscriber.h"
16 
17 namespace media {
18 namespace cast {
19 
20 // This class is not thread safe, and should only be called from the main
21 // thread.
22 class LoggingRaw : public base::NonThreadSafe {
23  public:
24   LoggingRaw();
25   ~LoggingRaw();
26 
27   // Inform of new event: two types of events: frame and packet.
28   // Frame events can be inserted with different parameters.
29   void InsertFrameEvent(const base::TimeTicks& time_of_event,
30                         CastLoggingEvent event, EventMediaType event_media_type,
31                         uint32 rtp_timestamp, uint32 frame_id);
32 
33   // This function is only applicable for FRAME_ENCODED event.
34   // |size| - Size of encoded frame.
35   // |key_frame| - Whether the frame is a key frame. This field is only
36   //               applicable for video event.
37   // |target_bitrate| - The target bitrate of the encoder the time the frame
38   // was encoded. Only applicable for video event.
39   void InsertEncodedFrameEvent(const base::TimeTicks& time_of_event,
40                                 CastLoggingEvent event,
41                                 EventMediaType event_media_type,
42                                 uint32 rtp_timestamp, uint32 frame_id,
43                                 int size, bool key_frame,
44                                 int target_bitrate);
45 
46   // Render/playout delay
47   // This function is only applicable for FRAME_PLAYOUT event.
48   void InsertFrameEventWithDelay(const base::TimeTicks& time_of_event,
49                                  CastLoggingEvent event,
50                                  EventMediaType event_media_type,
51                                  uint32 rtp_timestamp,
52                                  uint32 frame_id, base::TimeDelta delay);
53 
54   // Insert a packet event.
55   void InsertPacketEvent(const base::TimeTicks& time_of_event,
56                          CastLoggingEvent event,
57                          EventMediaType event_media_type, uint32 rtp_timestamp,
58                          uint32 frame_id, uint16 packet_id,
59                          uint16 max_packet_id, size_t size);
60 
61   // Adds |subscriber| so that it will start receiving events on main thread.
62   // Note that this class does not own |subscriber|.
63   // It is a no-op to add a subscriber that already exists.
64   void AddSubscriber(RawEventSubscriber* subscriber);
65 
66   // Removes |subscriber| so that it will stop receiving events.
67   // Note that this class does NOT own the subscribers. This function MUST be
68   // called before |subscriber| is destroyed if it was previously added.
69   // It is a no-op to remove a subscriber that doesn't exist.
70   void RemoveSubscriber(RawEventSubscriber* subscriber);
71 
72  private:
73   void InsertBaseFrameEvent(const base::TimeTicks& time_of_event,
74                             CastLoggingEvent event,
75                             EventMediaType event_media_type,
76                             uint32 frame_id, uint32 rtp_timestamp,
77                             base::TimeDelta delay, int size, bool key_frame,
78                             int target_bitrate);
79 
80   // List of subscriber pointers. This class does not own the subscribers.
81   std::vector<RawEventSubscriber*> subscribers_;
82 
83   DISALLOW_COPY_AND_ASSIGN(LoggingRaw);
84 };
85 
86 }  // namespace cast
87 }  // namespace media
88 
89 #endif  // MEDIA_CAST_LOGGING_LOGGING_RAW_H_
90