crossdesk/src/channel/video_channel_receive.cpp

#include "video_channel_receive.h"

#include "log.h"

VideoChannelReceive::VideoChannelReceive() {}

VideoChannelReceive::VideoChannelReceive(
    std::shared_ptr<IceAgent> ice_agent,
    std::shared_ptr<IOStatistics> ice_io_statistics,
    std::function<void(VideoFrame &)> on_receive_complete_frame)
    : ice_agent_(ice_agent),
      ice_io_statistics_(ice_io_statistics),
      on_receive_complete_frame_(on_receive_complete_frame) {}

VideoChannelReceive::~VideoChannelReceive() {}

void VideoChannelReceive::Initialize(rtp::PAYLOAD_TYPE payload_type) {
  rtp_video_receiver_ = std::make_unique<RtpVideoReceiver>(ice_io_statistics_);
  rtp_video_receiver_->SetOnReceiveCompleteFrame(
      [this](VideoFrame &video_frame) -> void {
        on_receive_complete_frame_(video_frame);
      });

  rtp_video_receiver_->SetSendDataFunc(
      [this](const char *data, size_t size) -> int {
        if (!ice_agent_) {
          LOG_ERROR("ice_agent_ is nullptr");
          return -1;
        }

        auto ice_state = ice_agent_->GetIceState();

        if (ice_state != NICE_COMPONENT_STATE_CONNECTED &&
            ice_state != NICE_COMPONENT_STATE_READY) {
          LOG_ERROR("Ice is not connected, state = [{}]",
                    nice_component_state_to_string(ice_state));
          return -2;
        }

        ice_io_statistics_->UpdateVideoOutboundBytes((uint32_t)size);
        return ice_agent_->Send(data, size);
      });

  rtp_video_receiver_->Start();
}

void VideoChannelReceive::Destroy() {}

int VideoChannelReceive::OnReceiveRtpPacket(const char *data, size_t size) {
  if (ice_io_statistics_) {
    ice_io_statistics_->UpdateVideoInboundBytes((uint32_t)size);
  }

  if (rtp_video_receiver_) {
    RtpPacket rtp_packet;
    rtp_packet.Build((uint8_t *)data, (uint32_t)size);
    rtp_video_receiver_->InsertRtpPacket(rtp_packet);
  }

  return 0;
}