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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_FRAMER_FRAME_ID_MAP_H_ |
| 6 #define MEDIA_CAST_FRAMER_FRAME_ID_MAP_H_ |
| 7 |
| 8 #include <map> |
| 9 #include <set> |
| 10 |
| 11 #include "base/memory/linked_ptr.h" |
| 12 #include "base/memory/scoped_ptr.h" |
| 13 #include "media/cast/cast_config.h" |
| 14 #include "media/cast/rtcp/rtcp_defines.h" |
| 15 #include "media/cast/rtp_common/rtp_defines.h" |
| 16 |
| 17 namespace media { |
| 18 namespace cast { |
| 19 |
| 20 class FrameInfo { |
| 21 public: |
| 22 FrameInfo(uint8 frame_id, |
| 23 uint8 referenced_frame_id, |
| 24 uint16 max_packet_id, |
| 25 bool key_frame); |
| 26 ~FrameInfo(); |
| 27 |
| 28 // Returns true if frame is complete after the insert. |
| 29 bool InsertPacket(uint16 packet_id); |
| 30 bool Complete() const; |
| 31 void GetMissingPackets(bool newest_frame, |
| 32 PacketIdSet* missing_packets) const; |
| 33 |
| 34 bool is_key_frame() const { return is_key_frame_; } |
| 35 uint8 frame_id() const { return frame_id_; } |
| 36 uint8 referenced_frame_id() const { return referenced_frame_id_; } |
| 37 |
| 38 private: |
| 39 const bool is_key_frame_; |
| 40 const uint8 frame_id_; |
| 41 const uint8 referenced_frame_id_; |
| 42 |
| 43 uint16 max_received_packet_id_; |
| 44 PacketIdSet missing_packets_; |
| 45 |
| 46 DISALLOW_COPY_AND_ASSIGN(FrameInfo); |
| 47 }; |
| 48 |
| 49 typedef std::map<uint8, linked_ptr<FrameInfo> > FrameMap; |
| 50 |
| 51 class FrameIdMap { |
| 52 public: |
| 53 FrameIdMap(); |
| 54 ~FrameIdMap(); |
| 55 |
| 56 // Returns false if not a valid (old) packet, otherwise returns true. |
| 57 bool InsertPacket(const RtpCastHeader& rtp_header, bool* complete); |
| 58 |
| 59 bool Empty() const; |
| 60 bool FrameExists(uint8 frame_id) const; |
| 61 uint8 NewestFrameId() const; |
| 62 |
| 63 void RemoveOldFrames(uint8 frame_id); |
| 64 void Clear(); |
| 65 |
| 66 // Identifies the next frame to be released (rendered). |
| 67 bool NextContinuousFrame(uint8* frame_id) const; |
| 68 uint8 LastContinuousFrame() const; |
| 69 |
| 70 bool NextAudioFrameAllowingMissingFrames(uint8* frame_id) const; |
| 71 bool NextVideoFrameAllowingSkippingFrames(uint8* frame_id) const; |
| 72 |
| 73 int NumberOfCompleteFrames() const; |
| 74 void GetMissingPackets(uint8 frame_id, |
| 75 bool last_frame, |
| 76 PacketIdSet* missing_packets) const; |
| 77 |
| 78 private: |
| 79 bool ContinuousFrame(FrameInfo* frame) const; |
| 80 bool DecodableVideoFrame(FrameInfo* frame) const; |
| 81 |
| 82 FrameMap frame_map_; |
| 83 bool waiting_for_key_; |
| 84 uint8 last_released_frame_; |
| 85 uint8 newest_frame_id_; |
| 86 |
| 87 DISALLOW_COPY_AND_ASSIGN(FrameIdMap); |
| 88 }; |
| 89 |
| 90 } // namespace cast |
| 91 } // namespace media |
| 92 |
| 93 #endif // MEDIA_CAST_FRAMER_FRAME_ID_MAP_H_ |
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