media/cast/net/rtp/rtp_header_parser.h

   1 // Copyright 2014 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 // Utility parser for rtp packetizer unittests
   6 #ifndef MEDIA_CAST_NET_RTP_RTP_HEADER_PARSER_H_
   7 #define MEDIA_CAST_NET_RTP_RTP_HEADER_PARSER_H_
   8
   9 #include "base/basictypes.h"
  10 #include "media/cast/net/cast_transport_defines.h"
  11
  12 namespace media {
  13 namespace cast {
  14
  15 // TODO(miu): Kill this and use RtpCastHeader instead.
  16 struct RtpCastTestHeader {
  17   RtpCastTestHeader();
  18   ~RtpCastTestHeader();
  19   // Cast specific.
  20   bool is_key_frame;
  21   uint32 frame_id;
  22   uint16 packet_id;
  23   uint16 max_packet_id;
  24   bool is_reference;  // Set to true if the previous frame is not available,
  25                       // and the reference frame id  is available.
  26   uint32 reference_frame_id;
  27
  28   // Rtp Generic.
  29   bool marker;
  30   uint16 sequence_number;
  31   uint32 rtp_timestamp;
  32   uint32 ssrc;
  33   int payload_type;
  34   uint8 num_csrcs;
  35   uint8 audio_num_energy;
  36   int header_length;
  37 };
  38
  39 // TODO(miu): Kill this and use RtpParser instead.
  40 class RtpHeaderParser {
  41  public:
  42   RtpHeaderParser(const uint8* rtpData, size_t rtpDataLength);
  43   ~RtpHeaderParser();
  44
  45   bool Parse(RtpCastTestHeader* parsed_packet) const;
  46
  47  private:
  48   bool ParseCommon(RtpCastTestHeader* parsed_packet) const;
  49   bool ParseCast(RtpCastTestHeader* parsed_packet) const;
  50   const uint8* const rtp_data_begin_;
  51   size_t length_;
  52
  53   mutable FrameIdWrapHelper frame_id_wrap_helper_;
  54   mutable FrameIdWrapHelper reference_frame_id_wrap_helper_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(RtpHeaderParser);
  57 };
  58
  59 }  // namespace cast
  60 }  // namespace media
  61
  62 #endif  // MEDIA_CAST_NET_RTP_RTP_HEADER_PARSER_H_