237 lines
4.4 KiB
Go
237 lines
4.4 KiB
Go
package serverrtsp
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import (
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"crypto/tls"
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"sync"
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"time"
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"github.com/aler9/gortsplib"
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"github.com/aler9/gortsplib/pkg/base"
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"github.com/aler9/rtsp-simple-server/internal/clientrtsp"
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"github.com/aler9/rtsp-simple-server/internal/logger"
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"github.com/aler9/rtsp-simple-server/internal/pathman"
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"github.com/aler9/rtsp-simple-server/internal/stats"
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)
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// Parent is implemented by program.
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type Parent interface {
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Log(logger.Level, string, ...interface{})
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}
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// Server is a RTSP listener.
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type Server struct {
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readTimeout time.Duration
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isTLS bool
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rtspAddress string
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protocols map[base.StreamProtocol]struct{}
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runOnConnect string
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runOnConnectRestart bool
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stats *stats.Stats
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pathMan *pathman.PathManager
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parent Parent
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srv *gortsplib.Server
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wg sync.WaitGroup
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clients map[*clientrtsp.Client]struct{}
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// in
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clientClose chan *clientrtsp.Client
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terminate chan struct{}
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// out
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done chan struct{}
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}
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// New allocates a Server.
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func New(
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address string,
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readTimeout time.Duration,
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writeTimeout time.Duration,
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readBufferCount int,
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readBufferSize int,
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useUDP bool,
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rtpAddress string,
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rtcpAddress string,
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isTLS bool,
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serverCert string,
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serverKey string,
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rtspAddress string,
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protocols map[base.StreamProtocol]struct{},
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runOnConnect string,
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runOnConnectRestart bool,
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stats *stats.Stats,
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pathMan *pathman.PathManager,
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parent Parent) (*Server, error) {
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conf := gortsplib.ServerConf{
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ReadTimeout: readTimeout,
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WriteTimeout: writeTimeout,
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ReadBufferCount: readBufferCount,
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ReadBufferSize: readBufferSize,
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}
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if useUDP {
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conf.UDPRTPAddress = rtpAddress
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conf.UDPRTCPAddress = rtcpAddress
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}
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if isTLS {
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cert, err := tls.LoadX509KeyPair(serverCert, serverKey)
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if err != nil {
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return nil, err
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}
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conf.TLSConfig = &tls.Config{Certificates: []tls.Certificate{cert}}
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}
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srv, err := conf.Serve(address)
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if err != nil {
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return nil, err
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}
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s := &Server{
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readTimeout: readTimeout,
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isTLS: isTLS,
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rtspAddress: rtspAddress,
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protocols: protocols,
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stats: stats,
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pathMan: pathMan,
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parent: parent,
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srv: srv,
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clients: make(map[*clientrtsp.Client]struct{}),
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clientClose: make(chan *clientrtsp.Client),
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terminate: make(chan struct{}),
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done: make(chan struct{}),
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}
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if conf.UDPRTPAddress != "" {
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s.Log(logger.Info, "UDP/RTP listener opened on %s", conf.UDPRTPAddress)
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}
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if conf.UDPRTCPAddress != "" {
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s.Log(logger.Info, "UDP/RTCP listener opened on %s", conf.UDPRTCPAddress)
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}
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s.Log(logger.Info, "TCP listener opened on %s", address)
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go s.run()
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return s, nil
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}
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// Log is the main logging function.
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func (s *Server) Log(level logger.Level, format string, args ...interface{}) {
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label := func() string {
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if s.isTLS {
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return "RTSPS"
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}
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return "RTSP"
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}()
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s.parent.Log(level, "[%s] "+format, append([]interface{}{label}, args...)...)
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}
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// Close closes a Server.
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func (s *Server) Close() {
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close(s.terminate)
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<-s.done
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}
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func (s *Server) run() {
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defer close(s.done)
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s.wg.Add(1)
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connNew := make(chan *gortsplib.ServerConn)
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acceptErr := make(chan error)
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go func() {
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defer s.wg.Done()
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acceptErr <- func() error {
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for {
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conn, err := s.srv.Accept()
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if err != nil {
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return err
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}
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connNew <- conn
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}
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}()
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}()
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outer:
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for {
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select {
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case err := <-acceptErr:
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s.Log(logger.Warn, "ERR: %s", err)
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break outer
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case conn := <-connNew:
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c := clientrtsp.New(
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s.isTLS,
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s.rtspAddress,
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s.readTimeout,
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s.runOnConnect,
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s.runOnConnectRestart,
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s.protocols,
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&s.wg,
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s.stats,
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conn,
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s.pathMan,
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s)
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s.clients[c] = struct{}{}
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case c := <-s.clientClose:
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if _, ok := s.clients[c]; !ok {
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continue
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}
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s.doClientClose(c)
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case <-s.terminate:
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break outer
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}
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}
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go func() {
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for {
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select {
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case _, ok := <-acceptErr:
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if !ok {
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return
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}
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case conn, ok := <-connNew:
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if !ok {
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return
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}
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conn.Close()
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case _, ok := <-s.clientClose:
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if !ok {
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return
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}
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}
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}
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}()
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s.srv.Close()
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for c := range s.clients {
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s.doClientClose(c)
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}
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s.wg.Wait()
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close(acceptErr)
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close(connNew)
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close(s.clientClose)
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}
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func (s *Server) doClientClose(c *clientrtsp.Client) {
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delete(s.clients, c)
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c.Close()
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}
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// OnClientClose is called by a readpublisher.
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func (s *Server) OnClientClose(c *clientrtsp.Client) {
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s.clientClose <- c
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}
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