Line data    Source code

       1             : /*
       2             :  *  Copyright (C) 2004-2024 Savoir-faire Linux Inc.
       3             :  *
       4             :  *  This program is free software: you can redistribute it and/or modify
       5             :  *  it under the terms of the GNU General Public License as published by
       6             :  *  the Free Software Foundation, either version 3 of the License, or
       7             :  *  (at your option) any later version.
       8             :  *
       9             :  *  This program is distributed in the hope that it will be useful,
      10             :  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      12             :  *  GNU General Public License for more details.
      13             :  *
      14             :  *  You should have received a copy of the GNU General Public License
      15             :  *  along with this program. If not, see <https://www.gnu.org/licenses/>.
      16             :  */
      17             : #pragma once
      18             : 
      19             : #include "audio_format.h"
      20             : #include "media/media_buffer.h"
      21             : #include "media/media_device.h"
      22             : #include "media/media_codec.h"
      23             : #include "noncopyable.h"
      24             : #include "observer.h"
      25             : #include "media/socket_pair.h"
      26             : #include "threadloop.h"
      27             : 
      28             : #include <functional>
      29             : #include <sstream>
      30             : 
      31             : namespace jami {
      32             : 
      33             : class MediaDecoder;
      34             : class MediaIOHandle;
      35             : struct MediaStream;
      36             : class RingBuffer;
      37             : 
      38             : class AudioReceiveThread : public Observable<std::shared_ptr<MediaFrame>>
      39             : {
      40             : public:
      41             :     AudioReceiveThread(const std::string& streamId,
      42             :                        const AudioFormat& format,
      43             :                        const std::string& sdp,
      44             :                        const uint16_t mtu);
      45             :     ~AudioReceiveThread();
      46             : 
      47             :     MediaStream getInfo() const;
      48             : 
      49             :     void addIOContext(SocketPair& socketPair);
      50             :     void startReceiver();
      51             :     void stopReceiver();
      52             : 
      53         190 :     void setSuccessfulSetupCb(const std::function<void(MediaType, bool)>& cb)
      54             :     {
      55         190 :         onSuccessfulSetup_ = cb;
      56         190 :     }
      57             : 
      58             :     void setRecorderCallback(const std::function<void(const MediaStream& ms)>& cb);
      59             : 
      60             : private:
      61             :     NON_COPYABLE(AudioReceiveThread);
      62             : 
      63             :     static constexpr auto SDP_FILENAME = "dummyFilename";
      64             : 
      65             :     static int interruptCb(void* ctx);
      66             :     static int readFunction(void* opaque, uint8_t* buf, int buf_size);
      67             : 
      68             :     /*-----------------------------------------------------------------*/
      69             :     /* These variables should be used in thread (i.e. process()) only! */
      70             :     /*-----------------------------------------------------------------*/
      71             :     const std::string streamId_;
      72             :     const AudioFormat& format_;
      73             : 
      74             :     DeviceParams args_;
      75             : 
      76             :     std::istringstream stream_;
      77             :     mutable std::mutex mutex_;
      78             :     std::unique_ptr<MediaDecoder> audioDecoder_;
      79             :     std::unique_ptr<MediaIOHandle> sdpContext_;
      80             :     std::unique_ptr<MediaIOHandle> demuxContext_;
      81             : 
      82             :     std::shared_ptr<RingBuffer> ringbuffer_;
      83             : 
      84             :     uint16_t mtu_;
      85             : 
      86             :     ThreadLoop loop_;
      87             :     bool setup();
      88             :     void process();
      89             :     void cleanup();
      90             : 
      91             :     std::function<void(MediaType, bool)> onSuccessfulSetup_;
      92             :     std::function<void(const MediaStream& ms)> recorderCallback_;
      93             : };
      94             : 
      95             : } // namespace jami