1 /** 2 * Copyright (C) 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef AUDIO_STREAM_GRAPH_RTP_TX_H 18 #define AUDIO_STREAM_GRAPH_RTP_TX_H 19 20 #include <ImsMediaDefine.h> 21 #include <AudioStreamGraph.h> 22 #include <RtpHeaderExtension.h> 23 24 class AudioStreamGraphRtpTx : public AudioStreamGraph 25 { 26 public: 27 AudioStreamGraphRtpTx(BaseSessionCallback* callback, int localFd = 0); 28 virtual ~AudioStreamGraphRtpTx(); 29 virtual ImsMediaResult create(RtpConfig* config); 30 virtual ImsMediaResult update(RtpConfig* config); 31 virtual ImsMediaResult start(); 32 33 /** 34 * @brief Create a graph for send dtmf digit to network 35 * 36 * @param config AudioConfig for setting the parameters for nodes 37 * @param rtpEncoderNode The RtpEncoderNode instance to connect as a rear node after the 38 * DtmfSenderNode, if it is null, no dtmf packet will be delivered to RtpEncoderNode. 39 * @return true Returns when the graph created without error 40 * @return false Returns when the given parameters are invalid. 41 */ 42 bool createDtmfGraph(RtpConfig* config, BaseNode* rtpEncoderNode); 43 44 /** 45 * @brief Creates and send dtmf packet to the network through the node created 46 * 47 * @param digit A digit to send as a RtpEvent packet 48 * @param duration The milliseconds unit of duration how long to send the dtmf packet. 49 * @return true Returns true when the dtmf digit is sent without error. 50 * @return false Returns false when the dtmf digit cannot be sent to the node. 51 */ 52 bool sendDtmf(char digit, int duration); 53 54 /** 55 * @brief Set the cmr value to change the audio mode 56 * 57 * @param cmrType The 3 bit of cmr type for EVS and just cmr bit for AMR/AMR-WB codec 58 * @param cmrDefine The 4 bit of cmr define code for EVS and not used for AMR/AMR-WB codec 59 */ 60 void processCmr(const uint32_t cmrType, const uint32_t cmrDefine = 0); 61 62 /** 63 * @brief Send rtp header extension to the audio rtp 64 * 65 * @param listExtension The list of rtp header extension data 66 */ 67 void sendRtpHeaderExtension(std::list<RtpHeaderExtension>* listExtension); 68 69 private: 70 std::list<BaseNode*> mListDtmfNodes; 71 }; 72 73 #endif