install go2rtc on bob

installs_on_host/go2rtc/pkg/y4m/consumer.go

@@ -0,0 +1,65 @@
+package y4m
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/AlexxIT/go2rtc/pkg/core"
+	"github.com/pion/rtp"
+)
+
+type Consumer struct {
+	core.Connection
+	wr *core.WriteBuffer
+}
+
+func NewConsumer() *Consumer {
+	wr := core.NewWriteBuffer(nil)
+	return &Consumer{
+		core.Connection{
+			ID:         core.NewID(),
+			Transport:  wr,
+			FormatName: "yuv4mpegpipe",
+			Medias: []*core.Media{
+				{
+					Kind:      core.KindVideo,
+					Direction: core.DirectionSendonly,
+					Codecs: []*core.Codec{
+						{Name: core.CodecRAW},
+					},
+				},
+			},
+		},
+		wr,
+	}
+}
+
+func (c *Consumer) AddTrack(media *core.Media, _ *core.Codec, track *core.Receiver) error {
+	sender := core.NewSender(media, track.Codec)
+	sender.Handler = func(packet *rtp.Packet) {
+		if n, err := c.wr.Write([]byte(frameHdr)); err == nil {
+			c.Send += n
+		}
+		if n, err := c.wr.Write(packet.Payload); err == nil {
+			c.Send += n
+		}
+	}
+
+	hdr := fmt.Sprintf(
+		"YUV4MPEG2 W%s H%s C%s\n",
+		core.Between(track.Codec.FmtpLine, "width=", ";"),
+		core.Between(track.Codec.FmtpLine, "height=", ";"),
+		core.Between(track.Codec.FmtpLine, "colorspace=", ";"),
+	)
+	if _, err := c.wr.Write([]byte(hdr)); err != nil {
+		return err
+	}
+
+	sender.HandleRTP(track)
+	c.Senders = append(c.Senders, sender)
+	return nil
+}
+
+func (c *Consumer) WriteTo(wr io.Writer) (int64, error) {
+	return c.wr.WriteTo(wr)
+}