Line data    Source code

       1             : /*
       2             :  *  Copyright (C) 2004-2026 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 "noncopyable.h"
      20             : #include "threadloop.h"
      21             : #include "media/media_stream.h"
      22             : #include "media/media_device.h" // DeviceParams
      23             : #include "media/video/video_base.h"
      24             : #include "media/media_codec.h"
      25             : 
      26             : #include <atomic>
      27             : #include <future>
      28             : #include <string>
      29             : 
      30             : #if __APPLE__
      31             : #import "TargetConditionals.h"
      32             : #endif
      33             : 
      34             : namespace jami {
      35             : class MediaDecoder;
      36             : class MediaDemuxer;
      37             : } // namespace jami
      38             : 
      39             : namespace jami {
      40             : namespace video {
      41             : 
      42             : class SinkClient;
      43             : 
      44             : enum class VideoInputMode : uint8_t { ManagedByClient, ManagedByDaemon, Undefined };
      45             : 
      46             : class VideoInput : public VideoGenerator
      47             : {
      48             : public:
      49             :     VideoInput(VideoInputMode inputMode = VideoInputMode::Undefined,
      50             :                const std::string& resource = "local",
      51             :                const std::string& sink = "");
      52             :     ~VideoInput();
      53             : 
      54             :     // as VideoGenerator
      55             :     const std::string& getName() const { return resource_; }
      56             :     int getWidth() const;
      57             :     int getHeight() const;
      58             :     AVPixelFormat getPixelFormat() const;
      59             : 
      60             :     const DeviceParams& getConfig() const { return decOpts_; }
      61          99 :     std::shared_future<DeviceParams> getParams() const { return futureDecOpts_; }
      62             : 
      63             :     MediaStream getInfo() const;
      64             : 
      65             :     void setSink(const std::string& sinkId);
      66             :     void updateStartTime(int64_t startTime);
      67             :     void configureFilePlayback(const std::string& path, std::shared_ptr<MediaDemuxer>& demuxer, int index);
      68             :     void flushBuffers();
      69          10 :     void setPaused(bool paused) { paused_ = paused; }
      70             :     void setSeekTime(int64_t time);
      71             :     void setupSink(const int width, const int height);
      72             :     void stopSink();
      73             : 
      74             :     void setRecorderCallback(const std::function<void(const MediaStream& ms)>& cb);
      75             : 
      76             :     void setSuccessfulSetupCb(const std::function<void(MediaType, bool)>& cb) { onSuccessfulSetup_ = cb; }
      77             : 
      78             :     /**
      79             :      * Restart stopped video input
      80             :      * @note if a media is removed, then re-added in a conference, the loop will be stopped
      81             :      * and this input must be restarted
      82             :      */
      83             :     void restart();
      84             : 
      85             : private:
      86             :     NON_COPYABLE(VideoInput);
      87             : 
      88             :     std::shared_future<DeviceParams> switchInput(const std::string& resource);
      89             : 
      90             :     std::string resource_;
      91             :     std::atomic<bool> switchPending_ = {false};
      92             :     std::atomic_bool isStopped_ = {false};
      93             : 
      94             :     DeviceParams decOpts_;
      95             :     std::promise<DeviceParams> foundDecOpts_;
      96             :     std::shared_future<DeviceParams> futureDecOpts_;
      97             :     bool emulateRate_ = false;
      98             : 
      99             :     std::atomic_bool decOptsFound_ {false};
     100             :     void foundDecOpts(const DeviceParams& params);
     101             : 
     102             :     void clearOptions();
     103             : 
     104             :     // true if decOpts_ is ready to use, false if using promise/future
     105             :     bool initCamera(const std::string& device);
     106             :     bool initFile(const std::string& path);
     107             : 
     108             : #ifdef __APPLE__
     109             :     bool initAVFoundation(const std::string& display);
     110             : #elif defined(WIN32)
     111             :     bool initWindowsGrab(const std::string& display);
     112             : #else
     113             :     bool initLinuxGrab(const std::string& display);
     114             : #endif
     115             : 
     116             :     bool isCapturing() const noexcept;
     117             :     void startLoop();
     118             : 
     119             :     void switchDevice();
     120             :     bool capturing_ {false};
     121             :     void createDecoder();
     122             :     void deleteDecoder();
     123             :     std::unique_ptr<MediaDecoder> decoder_;
     124             :     std::shared_ptr<SinkClient> sink_;
     125             :     ThreadLoop loop_;
     126             : 
     127             :     // for ThreadLoop
     128             :     bool setup();
     129             :     void process();
     130             :     void cleanup();
     131             : 
     132             :     bool captureFrame();
     133             : 
     134             :     int rotation_ {0};
     135             :     std::shared_ptr<AVBufferRef> displayMatrix_;
     136             :     void setRotation(int angle);
     137             :     VideoInputMode inputMode_;
     138         446 :     inline bool videoManagedByClient() const { return inputMode_ == VideoInputMode::ManagedByClient; }
     139             :     bool playingFile_ = false;
     140             :     std::atomic_bool paused_ {true};
     141             : 
     142             :     std::function<void(MediaType, bool)> onSuccessfulSetup_;
     143             :     std::function<void(const MediaStream& ms)> recorderCallback_;
     144             : };
     145             : 
     146             : } // namespace video
     147             : } // namespace jami