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      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/common_types.h"
     19 #include "webrtc/modules/audio_coding/neteq/tools/packet_source.h"
     20 #include "webrtc/modules/rtp_rtcp/interface/rtp_rtcp_defines.h"
     21 #include "webrtc/system_wrappers/interface/scoped_ptr.h"
     22 
     23 namespace webrtc {
     24 
     25 class RtpHeaderParser;
     26 
     27 namespace test {
     28 
     29 class RtpFileSource : public PacketSource {
     30  public:
     31   // Creates an RtpFileSource reading from |file_name|. If the file cannot be
     32   // opened, or has the wrong format, NULL will be returned.
     33   static RtpFileSource* Create(const std::string& file_name);
     34 
     35   virtual ~RtpFileSource();
     36 
     37   // Registers an RTP header extension and binds it to |id|.
     38   virtual bool RegisterRtpHeaderExtension(RTPExtensionType type, uint8_t id);
     39 
     40   // Returns a pointer to the next packet. Returns NULL if end of file was
     41   // reached, or if a the data was corrupt.
     42   virtual Packet* NextPacket();
     43 
     44   // Returns true if the end of file has been reached.
     45   virtual bool EndOfFile() const;
     46 
     47  private:
     48   static const int kFirstLineLength = 40;
     49   static const int kRtpFileHeaderSize = 4 + 4 + 4 + 2 + 2;
     50   static const size_t kPacketHeaderSize = 8;
     51 
     52   RtpFileSource();
     53 
     54   bool OpenFile(const std::string& file_name);
     55 
     56   bool SkipFileHeader();
     57 
     58   FILE* in_file_;
     59   int64_t file_end_;
     60   scoped_ptr<RtpHeaderParser> parser_;
     61 
     62   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