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_PACKET_SOURCE_H_ 12 #define WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_PACKET_SOURCE_H_ 13 14 #include <bitset> 15 16 #include "webrtc/base/constructormagic.h" 17 #include "webrtc/modules/audio_coding/neteq/tools/packet.h" 18 #include "webrtc/typedefs.h" 19 20 namespace webrtc { 21 namespace test { 22 23 // Interface class for an object delivering RTP packets to test applications. 24 class PacketSource { 25 public: 26 PacketSource() : use_ssrc_filter_(false), ssrc_(0) {} 27 virtual ~PacketSource() {} 28 29 // Returns a pointer to the next packet. Returns NULL if the source is 30 // depleted, or if an error occurred. 31 virtual Packet* NextPacket() = 0; 32 33 virtual void FilterOutPayloadType(uint8_t payload_type) { 34 filter_.set(payload_type, true); 35 } 36 37 virtual void SelectSsrc(uint32_t ssrc) { 38 use_ssrc_filter_ = true; 39 ssrc_ = ssrc; 40 } 41 42 protected: 43 std::bitset<128> filter_; // Payload type is 7 bits in the RFC. 44 // If SSRC filtering discards all packet that do not match the SSRC. 45 bool use_ssrc_filter_; // True when SSRC filtering is active. 46 uint32_t ssrc_; // The selected SSRC. All other SSRCs will be discarded. 47 48 private: 49 RTC_DISALLOW_COPY_AND_ASSIGN(PacketSource); 50 }; 51 52 } // namespace test 53 } // namespace webrtc 54 #endif // WEBRTC_MODULES_AUDIO_CODING_NETEQ_TOOLS_PACKET_SOURCE_H_ 55
