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 MODULES_AUDIO_CODING_NETEQ_RED_PAYLOAD_SPLITTER_H_ 12 #define MODULES_AUDIO_CODING_NETEQ_RED_PAYLOAD_SPLITTER_H_ 13 14 #include "modules/audio_coding/neteq/packet.h" 15 #include "rtc_base/constructor_magic.h" 16 17 namespace webrtc { 18 19 class DecoderDatabase; 20 21 // This class handles splitting of RED payloads into smaller parts. 22 // Codec-specific packet splitting can be performed by 23 // AudioDecoder::ParsePayload. 24 class RedPayloadSplitter { 25 public: RedPayloadSplitter()26 RedPayloadSplitter() {} 27 ~RedPayloadSplitter()28 virtual ~RedPayloadSplitter() {} 29 30 // Splits each packet in |packet_list| into its separate RED payloads. Each 31 // RED payload is packetized into a Packet. The original elements in 32 // |packet_list| are properly deleted, and replaced by the new packets. 33 // Note that all packets in |packet_list| must be RED payloads, i.e., have 34 // RED headers according to RFC 2198 at the very beginning of the payload. 35 // Returns kOK or an error. 36 virtual bool SplitRed(PacketList* packet_list); 37 38 // Checks all packets in |packet_list|. Packets that are DTMF events or 39 // comfort noise payloads are kept. Except that, only one single payload type 40 // is accepted. Any packet with another payload type is discarded. 41 virtual void CheckRedPayloads(PacketList* packet_list, 42 const DecoderDatabase& decoder_database); 43 44 private: 45 RTC_DISALLOW_COPY_AND_ASSIGN(RedPayloadSplitter); 46 }; 47 48 } // namespace webrtc 49 #endif // MODULES_AUDIO_CODING_NETEQ_RED_PAYLOAD_SPLITTER_H_ 50