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      1 /*
      2  *  Copyright (c) 2012 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_VIDEO_CODING_TEST_RTP_PLAYER_H_
     12 #define WEBRTC_MODULES_VIDEO_CODING_TEST_RTP_PLAYER_H_
     13 
     14 #include <string>
     15 #include <vector>
     16 
     17 #include "webrtc/modules/rtp_rtcp/interface/rtp_rtcp_defines.h"
     18 #include "webrtc/modules/video_coding/main/interface/video_coding_defines.h"
     19 
     20 namespace webrtc {
     21 class Clock;
     22 
     23 namespace rtpplayer {
     24 
     25 class PayloadCodecTuple {
     26  public:
     27   PayloadCodecTuple(uint8_t payload_type, const std::string& codec_name,
     28                     VideoCodecType codec_type)
     29       : name_(codec_name),
     30         payload_type_(payload_type),
     31         codec_type_(codec_type) {
     32   }
     33 
     34   const std::string& name() const { return name_; }
     35   uint8_t payload_type() const { return payload_type_; }
     36   VideoCodecType codec_type() const { return codec_type_; }
     37 
     38  private:
     39   std::string name_;
     40   uint8_t payload_type_;
     41   VideoCodecType codec_type_;
     42 };
     43 
     44 typedef std::vector<PayloadCodecTuple> PayloadTypes;
     45 typedef std::vector<PayloadCodecTuple>::const_iterator PayloadTypesIterator;
     46 
     47 // Implemented by RtpPlayer and given to client as a means to retrieve
     48 // information about a specific RTP stream.
     49 class RtpStreamInterface {
     50  public:
     51   virtual ~RtpStreamInterface() {}
     52 
     53   // Ask for missing packets to be resent.
     54   virtual void ResendPackets(const uint16_t* sequence_numbers,
     55                              uint16_t length) = 0;
     56 
     57   virtual uint32_t ssrc() const = 0;
     58   virtual const PayloadTypes& payload_types() const = 0;
     59 };
     60 
     61 // Implemented by a sink. Wraps RtpData because its d-tor is protected.
     62 class PayloadSinkInterface : public RtpData {
     63  public:
     64   virtual ~PayloadSinkInterface() {}
     65 };
     66 
     67 // Implemented to provide a sink for RTP data, such as hooking up a VCM to
     68 // the incoming RTP stream.
     69 class PayloadSinkFactoryInterface {
     70  public:
     71   virtual ~PayloadSinkFactoryInterface() {}
     72 
     73   // Return NULL if failed to create sink. 'stream' is guaranteed to be
     74   // around for as long as the RtpData. The returned object is owned by
     75   // the caller (RtpPlayer).
     76   virtual PayloadSinkInterface* Create(RtpStreamInterface* stream) = 0;
     77 };
     78 
     79 // The client's view of an RtpPlayer.
     80 class RtpPlayerInterface {
     81  public:
     82   virtual ~RtpPlayerInterface() {}
     83 
     84   virtual int NextPacket(int64_t timeNow) = 0;
     85   virtual uint32_t TimeUntilNextPacket() const = 0;
     86   virtual void Print() const = 0;
     87 };
     88 
     89 RtpPlayerInterface* Create(const std::string& inputFilename,
     90     PayloadSinkFactoryInterface* payloadSinkFactory, Clock* clock,
     91     const PayloadTypes& payload_types, float lossRate, uint32_t rttMs,
     92     bool reordering);
     93 
     94 }  // namespace rtpplayer
     95 }  // namespace webrtc
     96 
     97 #endif // WEBRTC_MODULES_VIDEO_CODING_TEST_RTP_PLAYER_H_
     98