1 /*
2  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_RTP_FILE_SOURCE_H_
12 #define WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_RTP_FILE_SOURCE_H_
13 
14 #include <stdio.h>
15 #include <string>
16 
17 #include "webrtc/base/constructormagic.h"
18 #include "webrtc/base/scoped_ptr.h"
19 #include "webrtc/common_types.h"
20 #include "webrtc/modules/audio_coding/neteq/tools/packet_source.h"
21 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
22 
23 namespace webrtc {
24 
25 class RtpHeaderParser;
26 
27 namespace test {
28 
29 class RtpFileReader;
30 
31 class RtpFileSource : public PacketSource {
32  public:
33   // Creates an RtpFileSource reading from |file_name|. If the file cannot be
34   // opened, or has the wrong format, NULL will be returned.
35   static RtpFileSource* Create(const std::string& file_name);
36 
37   // Checks whether a files is a valid RTP dump or PCAP (Wireshark) file.
38   static bool ValidRtpDump(const std::string& file_name);
39   static bool ValidPcap(const std::string& file_name);
40 
41   virtual ~RtpFileSource();
42 
43   // Registers an RTP header extension and binds it to |id|.
44   virtual bool RegisterRtpHeaderExtension(RTPExtensionType type, uint8_t id);
45 
46   // Returns a pointer to the next packet. Returns NULL if end of file was
47   // reached, or if a the data was corrupt.
48   Packet* NextPacket() override;
49 
50  private:
51   static const int kFirstLineLength = 40;
52   static const int kRtpFileHeaderSize = 4 + 4 + 4 + 2 + 2;
53   static const size_t kPacketHeaderSize = 8;
54 
55   RtpFileSource();
56 
57   bool OpenFile(const std::string& file_name);
58 
59   rtc::scoped_ptr<RtpFileReader> rtp_reader_;
60   rtc::scoped_ptr<RtpHeaderParser> parser_;
61 
62   RTC_DISALLOW_COPY_AND_ASSIGN(RtpFileSource);
63 };
64 
65 }  // namespace test
66 }  // namespace webrtc
67 #endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_RTP_FILE_SOURCE_H_
68