#pragma once
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#include <gst/gst.h>
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#include <gst/rtsp-server/rtsp-server.h>
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#include "vp_des_node.h"
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/*
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* ##### Compile Tips #####
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* install additional packages for this node before compiling:
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* sudo apt-get install libgstrtspserver-1.0-dev gstreamer1.0-rtsp
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* https://github.com/GStreamer/gst-rtsp-server
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*/
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namespace vp_nodes {
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// rtsp des node, push video stream via rtsp.
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// example: rtsp://localhost:7890/test
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// note, no specialized rtsp server needed since this node itself is a rtsp server, which can be pulled directly by video players such as VLC.
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class vp_rtsp_des_node: public vp_des_node {
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private:
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/* data */
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std::string gst_template = "appsrc ! videoconvert ! %s bitrate=%d ! h264parse ! rtph264pay ! udpsink host=localhost port=%d";
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cv::VideoWriter rtsp_writer;
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// start rtsp server
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void start_rtsp_streaming ();
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// resolution for rtsp stream
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vp_objects::vp_size resolution_w_h;
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int bitrate;
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// for osd frame
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bool osd;
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int udp_buffer_size = 0;
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// base udp port for stream data exchange internally, base_udp_port + channel_index would be used for each channel, MUST not occupied by others.
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const int base_udp_port = 7890;
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int rtsp_port = 9000;
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std::string rtsp_name = "";
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/* gst-rtsp-server variables shared between instances for different channels */
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static GstRTSPServer* rtsp_server;
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// set x264enc as the default encoder, we can use hardware encoder instead.
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std::string gst_encoder_name = "x264enc";
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protected:
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// re-implementation, return nullptr.
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virtual std::shared_ptr<vp_objects::vp_meta> handle_frame_meta(std::shared_ptr<vp_objects::vp_frame_meta> meta) override;
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public:
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vp_rtsp_des_node(std::string node_name,
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int channel_index,
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int rtsp_port = 9000,
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std::string rtsp_name = "",
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vp_objects::vp_size resolution_w_h = {},
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int bitrate = 512,
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bool osd = true,
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std::string gst_encoder_name = "x264enc");
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~vp_rtsp_des_node();
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virtual std::string to_string() override;
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};
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}
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