mirror of
https://github.com/datarhei/core.git
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Create publisher for remote rtmp stream
This commit is contained in:
Ingo Oppermann
164
rtmp/channel.go
Normal file
164
rtmp/channel.go
Normal file
@@ -0,0 +1,164 @@
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package rtmp
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import (
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"context"
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"net"
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"net/url"
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"path/filepath"
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"strings"
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"sync"
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"time"
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"github.com/datarhei/core/v16/session"
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"github.com/datarhei/joy4/av"
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"github.com/datarhei/joy4/av/pubsub"
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"github.com/datarhei/joy4/format/rtmp"
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)
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type client struct {
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conn connection
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id string
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createdAt time.Time
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txbytes uint64
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rxbytes uint64
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collector session.Collector
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cancel context.CancelFunc
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}
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func newClient(conn connection, id string, collector session.Collector) *client {
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c := &client{
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conn: conn,
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id: id,
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createdAt: time.Now(),
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collector: collector,
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}
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var ctx context.Context
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ctx, c.cancel = context.WithCancel(context.Background())
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go c.ticker(ctx)
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return c
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}
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func (c *client) ticker(ctx context.Context) {
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ticker := time.NewTicker(1 * time.Second)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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txbytes := c.conn.TxBytes()
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rxbytes := c.conn.RxBytes()
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c.collector.Ingress(c.id, int64(rxbytes-c.rxbytes))
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c.collector.Egress(c.id, int64(txbytes-c.txbytes))
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c.txbytes = txbytes
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c.rxbytes = rxbytes
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}
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}
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}
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func (c *client) Close() {
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c.cancel()
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c.conn.Close()
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}
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// channel represents a stream that is sent to the server
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type channel struct {
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// The packet queue for the stream
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queue *pubsub.Queue
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// The metadata of the stream
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streams []av.CodecData
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// Whether the stream has an audio track
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hasAudio bool
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// Whether the stream has a video track
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hasVideo bool
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collector session.Collector
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path string
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publisher *client
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subscriber map[string]*client
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lock sync.RWMutex
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isProxy bool
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}
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func newChannel(conn connection, u *url.URL, remote net.Addr, streams []av.CodecData, isProxy bool, collector session.Collector) *channel {
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ch := &channel{
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path: u.Path,
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publisher: newClient(conn, u.Path, collector),
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subscriber: make(map[string]*client),
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collector: collector,
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streams: streams,
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queue: pubsub.NewQueue(),
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isProxy: isProxy,
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}
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addr := remote.String()
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ip, _, _ := net.SplitHostPort(addr)
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if collector.IsCollectableIP(ip) {
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reference := strings.TrimSuffix(filepath.Base(u.Path), filepath.Ext(u.Path))
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collector.RegisterAndActivate(u.Path, reference, "publish:"+u.Path, addr)
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}
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return ch
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}
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func (ch *channel) Close() {
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if ch.publisher == nil {
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return
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}
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ch.publisher.Close()
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ch.publisher = nil
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ch.queue.Close()
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}
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func (ch *channel) AddSubscriber(conn *rtmp.Conn) string {
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addr := conn.NetConn().RemoteAddr().String()
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ip, _, _ := net.SplitHostPort(addr)
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client := newClient(conn, addr, ch.collector)
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if ch.collector.IsCollectableIP(ip) {
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reference := strings.TrimSuffix(filepath.Base(conn.URL.Path), filepath.Ext(conn.URL.Path))
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ch.collector.RegisterAndActivate(addr, reference, "play:"+conn.URL.Path, addr)
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}
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ch.lock.Lock()
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ch.subscriber[addr] = client
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ch.lock.Unlock()
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return addr
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}
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func (ch *channel) RemoveSubscriber(id string) {
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ch.lock.Lock()
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defer ch.lock.Unlock()
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client := ch.subscriber[id]
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if client != nil {
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delete(ch.subscriber, id)
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client.Close()
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}
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// If this is a proxied channel and the last subscriber leaves,
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// close the channel.
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if len(ch.subscriber) == 0 && ch.isProxy {
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ch.Close()
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}
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}
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104
rtmp/connection.go
Normal file
104
rtmp/connection.go
Normal file
@@ -0,0 +1,104 @@
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package rtmp
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import (
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"fmt"
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"github.com/datarhei/joy4/av"
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)
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type connection interface {
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av.MuxCloser
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av.DemuxCloser
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TxBytes() uint64
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RxBytes() uint64
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}
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// conn implements the connection interface
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type conn struct {
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muxer av.MuxCloser
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demuxer av.DemuxCloser
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txbytes uint64
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rxbytes uint64
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}
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// Make sure that conn implements the connection interface
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var _ connection = &conn{}
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func newConnectionFromDemuxer(m av.DemuxCloser) connection {
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c := &conn{
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demuxer: m,
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}
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return c
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}
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func (c *conn) TxBytes() uint64 {
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return c.txbytes
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}
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func (c *conn) RxBytes() uint64 {
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return c.rxbytes
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}
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func (c *conn) ReadPacket() (av.Packet, error) {
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if c.demuxer != nil {
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p, err := c.demuxer.ReadPacket()
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if err == nil {
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c.rxbytes += uint64(len(p.Data))
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}
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return p, err
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}
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return av.Packet{}, fmt.Errorf("no demuxer available")
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}
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func (c *conn) Streams() ([]av.CodecData, error) {
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if c.demuxer != nil {
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return c.demuxer.Streams()
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}
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return nil, fmt.Errorf("no demuxer available")
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}
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func (c *conn) WritePacket(p av.Packet) error {
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if c.muxer != nil {
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err := c.muxer.WritePacket(p)
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if err == nil {
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c.txbytes += uint64(len(p.Data))
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}
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return err
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}
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return fmt.Errorf("no muxer available")
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}
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func (c *conn) WriteHeader(streams []av.CodecData) error {
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if c.muxer != nil {
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return c.muxer.WriteHeader(streams)
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}
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return fmt.Errorf("no muxer available")
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}
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func (c *conn) WriteTrailer() error {
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if c.muxer != nil {
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return c.muxer.WriteTrailer()
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}
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return fmt.Errorf("no muxer available")
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}
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func (c *conn) Close() error {
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if c.muxer != nil {
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return c.muxer.Close()
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}
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if c.demuxer != nil {
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return c.demuxer.Close()
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}
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return nil
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}
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315
rtmp/rtmp.go
315
rtmp/rtmp.go
@@ -2,11 +2,10 @@
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package rtmp
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import (
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"context"
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"crypto/tls"
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"fmt"
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"net"
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"path/filepath"
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"net/url"
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"strings"
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"sync"
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"time"
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@@ -17,9 +16,7 @@ import (
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"github.com/datarhei/joy4/av/avutil"
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"github.com/datarhei/joy4/av/pktque"
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"github.com/datarhei/joy4/av/pubsub"
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"github.com/datarhei/joy4/format"
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"github.com/datarhei/joy4/format/flv/flvio"
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"github.com/datarhei/joy4/format/rtmp"
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)
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@@ -31,142 +28,6 @@ func init() {
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format.RegisterAll()
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}
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type client struct {
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conn *rtmp.Conn
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id string
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createdAt time.Time
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txbytes uint64
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rxbytes uint64
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collector session.Collector
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cancel context.CancelFunc
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}
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func newClient(conn *rtmp.Conn, id string, collector session.Collector) *client {
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c := &client{
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conn: conn,
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id: id,
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createdAt: time.Now(),
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collector: collector,
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}
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var ctx context.Context
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ctx, c.cancel = context.WithCancel(context.Background())
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go c.ticker(ctx)
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return c
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}
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func (c *client) ticker(ctx context.Context) {
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ticker := time.NewTicker(1 * time.Second)
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defer ticker.Stop()
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for {
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select {
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case <-ctx.Done():
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return
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case <-ticker.C:
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txbytes := c.conn.TxBytes()
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rxbytes := c.conn.RxBytes()
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c.collector.Ingress(c.id, int64(rxbytes-c.rxbytes))
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c.collector.Egress(c.id, int64(txbytes-c.txbytes))
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c.txbytes = txbytes
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c.rxbytes = rxbytes
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}
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}
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}
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func (c *client) Close() {
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c.cancel()
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}
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// channel represents a stream that is sent to the server
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type channel struct {
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// The packet queue for the stream
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queue *pubsub.Queue
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// The metadata of the stream
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metadata flvio.AMFMap
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// Whether the stream has an audio track
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hasAudio bool
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// Whether the stream has a video track
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hasVideo bool
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collector session.Collector
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path string
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publisher *client
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subscriber map[string]*client
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lock sync.RWMutex
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}
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func newChannel(conn *rtmp.Conn, collector session.Collector) *channel {
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ch := &channel{
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path: conn.URL.Path,
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publisher: newClient(conn, conn.URL.Path, collector),
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subscriber: make(map[string]*client),
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collector: collector,
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}
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addr := conn.NetConn().RemoteAddr().String()
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ip, _, _ := net.SplitHostPort(addr)
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if collector.IsCollectableIP(ip) {
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reference := strings.TrimSuffix(filepath.Base(conn.URL.Path), filepath.Ext(conn.URL.Path))
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collector.RegisterAndActivate(conn.URL.Path, reference, "publish:"+conn.URL.Path, addr)
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}
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return ch
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}
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func (ch *channel) Close() {
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if ch.publisher == nil {
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return
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}
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ch.publisher.Close()
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ch.publisher = nil
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ch.queue.Close()
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}
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func (ch *channel) AddSubscriber(conn *rtmp.Conn) string {
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addr := conn.NetConn().RemoteAddr().String()
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ip, _, _ := net.SplitHostPort(addr)
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client := newClient(conn, addr, ch.collector)
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if ch.collector.IsCollectableIP(ip) {
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reference := strings.TrimSuffix(filepath.Base(conn.URL.Path), filepath.Ext(conn.URL.Path))
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ch.collector.RegisterAndActivate(addr, reference, "play:"+conn.URL.Path, addr)
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}
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ch.lock.Lock()
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ch.subscriber[addr] = client
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ch.lock.Unlock()
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return addr
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}
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func (ch *channel) RemoveSubscriber(id string) {
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ch.lock.Lock()
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defer ch.lock.Unlock()
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client := ch.subscriber[id]
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if client != nil {
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delete(ch.subscriber, id)
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client.Close()
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}
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}
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// Config for a new RTMP server
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type Config struct {
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// Logger. Optional.
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@@ -338,47 +199,83 @@ func (s *server) log(who, action, path, message string, client net.Addr) {
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// handlePlay is called when a RTMP client wants to play a stream
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func (s *server) handlePlay(conn *rtmp.Conn) {
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client := conn.NetConn().RemoteAddr()
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defer conn.Close()
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remote := conn.NetConn().RemoteAddr()
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// Check the token
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q := conn.URL.Query()
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token := q.Get("token")
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if len(s.token) != 0 && s.token != token {
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s.log("PLAY", "FORBIDDEN", conn.URL.Path, "invalid token ("+token+")", client)
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conn.Close()
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s.log("PLAY", "FORBIDDEN", conn.URL.Path, "invalid token ("+token+")", remote)
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return
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}
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/*
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ip, _, _ := net.SplitHostPort(client.String())
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if s.collector.IsCollectableIP(ip) {
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maxBitrate := s.collector.MaxEgressBitrate()
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if maxBitrate > 0.0 {
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streamBitrate := s.collector.SessionTopIngressBitrate(conn.URL.Path) * 2.0
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currentBitrate := s.collector.CompanionEgressBitrate() * 1.15
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resultingBitrate := currentBitrate + streamBitrate
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if resultingBitrate >= maxBitrate {
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s.log("PLAY", "FORBIDDEN", conn.URL.Path, "bandwidth limit exceeded", client)
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conn.Close()
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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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// Look for the stream
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s.lock.RLock()
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ch := s.channels[conn.URL.Path]
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s.lock.RUnlock()
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if ch != nil {
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// Set the metadata for the client
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conn.SetMetaData(ch.metadata)
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if ch == nil {
|
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// Check in the cluster for that stream
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url, err := s.cluster.GetURL("rtmp:" + conn.URL.Path)
|
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if err != nil {
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s.log("PLAY", "NOTFOUND", conn.URL.Path, "", remote)
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return
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}
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s.log("PLAY", "START", conn.URL.Path, "", client)
|
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src, err := avutil.Open(url)
|
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if err != nil {
|
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s.logger.Error().WithField("address", url).WithError(err).Log("Proxying address failed")
|
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s.log("PLAY", "NOTFOUND", conn.URL.Path, "", remote)
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return
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}
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c := newConnectionFromDemuxer(src)
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wg := sync.WaitGroup{}
|
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wg.Add(1)
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|
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go func() {
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s.log("PLAY", "PROXYSTART", url, "", remote)
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wg.Done()
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err := s.publish(c, conn.URL, remote, true)
|
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if err != nil {
|
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s.logger.Error().WithField("address", url).WithError(err).Log("Proxying address failed")
|
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}
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s.log("PLAY", "PROXYSTOP", url, "", remote)
|
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}()
|
||||
|
||||
// Wait for the goroutine to start
|
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wg.Wait()
|
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|
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// Wait for channel to become available
|
||||
ticker := time.NewTicker(200 * time.Millisecond)
|
||||
tickerStart := time.Now()
|
||||
|
||||
for range ticker.C {
|
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s.lock.RLock()
|
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ch = s.channels[conn.URL.Path]
|
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s.lock.RUnlock()
|
||||
|
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if ch != nil {
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break
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}
|
||||
|
||||
if time.Since(tickerStart) > 2*time.Second {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
ticker.Stop()
|
||||
}
|
||||
|
||||
if ch != nil {
|
||||
// Send the metadata to the client
|
||||
conn.WriteHeader(ch.streams)
|
||||
|
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s.log("PLAY", "START", conn.URL.Path, "", remote)
|
||||
|
||||
// Get a cursor and apply filters
|
||||
cursor := ch.queue.Oldest()
|
||||
@@ -400,71 +297,60 @@ func (s *server) handlePlay(conn *rtmp.Conn) {
|
||||
|
||||
id := ch.AddSubscriber(conn)
|
||||
|
||||
// Transfer the data
|
||||
// Transfer the data, blocks until done
|
||||
avutil.CopyFile(conn, demuxer)
|
||||
|
||||
ch.RemoveSubscriber(id)
|
||||
|
||||
s.log("PLAY", "STOP", conn.URL.Path, "", client)
|
||||
s.log("PLAY", "STOP", conn.URL.Path, "", remote)
|
||||
} else {
|
||||
// Check in the cluster for that stream
|
||||
url, err := s.cluster.GetURL("rtmp:" + conn.URL.Path)
|
||||
if err == nil {
|
||||
src, err := avutil.Open(url)
|
||||
if err != nil {
|
||||
s.logger.Error().WithField("address", url).WithError(err).Log("Proxying address failed")
|
||||
s.log("PLAY", "NOTFOUND", conn.URL.Path, "", client)
|
||||
} else {
|
||||
s.log("PLAY", "PROXYSTART", url, "", client)
|
||||
avutil.CopyFile(conn, src)
|
||||
s.log("PLAY", "PROXYSTOP", url, "", client)
|
||||
}
|
||||
} else {
|
||||
s.log("PLAY", "NOTFOUND", conn.URL.Path, "", client)
|
||||
}
|
||||
s.log("PLAY", "NOTFOUND", conn.URL.Path, "", remote)
|
||||
}
|
||||
|
||||
conn.Close()
|
||||
}
|
||||
|
||||
// handlePublish is called when a RTMP client wants to publish a stream
|
||||
func (s *server) handlePublish(conn *rtmp.Conn) {
|
||||
client := conn.NetConn().RemoteAddr()
|
||||
defer conn.Close()
|
||||
|
||||
// Check the token
|
||||
q := conn.URL.Query()
|
||||
token := q.Get("token")
|
||||
remote := conn.NetConn().RemoteAddr()
|
||||
|
||||
if len(s.token) != 0 && s.token != token {
|
||||
s.log("PUBLISH", "FORBIDDEN", conn.URL.Path, "invalid token ("+token+")", client)
|
||||
conn.Close()
|
||||
return
|
||||
if len(s.token) != 0 {
|
||||
// Check the token
|
||||
token := conn.URL.Query().Get("token")
|
||||
|
||||
if s.token != token {
|
||||
s.log("PUBLISH", "FORBIDDEN", conn.URL.Path, "invalid token ("+token+")", remote)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Check the app patch
|
||||
if !strings.HasPrefix(conn.URL.Path, s.app) {
|
||||
s.log("PUBLISH", "FORBIDDEN", conn.URL.Path, "invalid app", client)
|
||||
conn.Close()
|
||||
s.log("PUBLISH", "FORBIDDEN", conn.URL.Path, "invalid app", remote)
|
||||
return
|
||||
}
|
||||
|
||||
// Check the stream if it contains any valid/known streams
|
||||
streams, _ := conn.Streams()
|
||||
err := s.publish(conn, conn.URL, remote, false)
|
||||
if err != nil {
|
||||
s.logger.WithField("path", conn.URL.Path).WithError(err).Log("")
|
||||
}
|
||||
}
|
||||
|
||||
func (s *server) publish(src connection, u *url.URL, remote net.Addr, isProxy bool) error {
|
||||
// Check the streams if it contains any valid/known streams
|
||||
streams, _ := src.Streams()
|
||||
|
||||
if len(streams) == 0 {
|
||||
s.log("PUBLISH", "INVALID", conn.URL.Path, "no streams available", client)
|
||||
conn.Close()
|
||||
return
|
||||
s.log("PUBLISH", "INVALID", u.Path, "no streams available", remote)
|
||||
return fmt.Errorf("no streams are available")
|
||||
}
|
||||
|
||||
s.lock.Lock()
|
||||
|
||||
ch := s.channels[conn.URL.Path]
|
||||
ch := s.channels[u.Path]
|
||||
if ch == nil {
|
||||
// Create a new channel
|
||||
ch = newChannel(conn, s.collector)
|
||||
ch.metadata = conn.GetMetaData()
|
||||
ch.queue = pubsub.NewQueue()
|
||||
ch = newChannel(src, u, remote, streams, isProxy, s.collector)
|
||||
ch.queue.WriteHeader(streams)
|
||||
|
||||
for _, stream := range streams {
|
||||
@@ -478,7 +364,7 @@ func (s *server) handlePublish(conn *rtmp.Conn) {
|
||||
}
|
||||
}
|
||||
|
||||
s.channels[conn.URL.Path] = ch
|
||||
s.channels[u.Path] = ch
|
||||
} else {
|
||||
ch = nil
|
||||
}
|
||||
@@ -486,27 +372,26 @@ func (s *server) handlePublish(conn *rtmp.Conn) {
|
||||
s.lock.Unlock()
|
||||
|
||||
if ch == nil {
|
||||
s.log("PUBLISH", "CONFLICT", conn.URL.Path, "already publishing", client)
|
||||
conn.Close()
|
||||
return
|
||||
s.log("PUBLISH", "CONFLICT", u.Path, "already publishing", remote)
|
||||
return fmt.Errorf("already publishing")
|
||||
}
|
||||
|
||||
s.log("PUBLISH", "START", conn.URL.Path, "", client)
|
||||
s.log("PUBLISH", "START", u.Path, "", remote)
|
||||
|
||||
for _, stream := range streams {
|
||||
s.log("PUBLISH", "STREAM", conn.URL.Path, stream.Type().String(), client)
|
||||
s.log("PUBLISH", "STREAM", u.Path, stream.Type().String(), remote)
|
||||
}
|
||||
|
||||
// Ingest the data
|
||||
avutil.CopyPackets(ch.queue, conn)
|
||||
// Ingest the data, blocks until done
|
||||
avutil.CopyPackets(ch.queue, src)
|
||||
|
||||
s.lock.Lock()
|
||||
delete(s.channels, conn.URL.Path)
|
||||
delete(s.channels, u.Path)
|
||||
s.lock.Unlock()
|
||||
|
||||
ch.Close()
|
||||
|
||||
s.log("PUBLISH", "STOP", conn.URL.Path, "", client)
|
||||
s.log("PUBLISH", "STOP", u.Path, "", remote)
|
||||
|
||||
conn.Close()
|
||||
return nil
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user