staging

internal/mtx/mtx.go

@@ -0,0 +1,81 @@
+package mtx
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"time"
+
+	"github.com/goccy/go-json"
+)
+
+// Minimaler Client für MediaMTX Control API v3
+// Standard-Ports: API :9997, HLS :8888, RTMP :1935
+
+type Client struct {
+	BaseURL string // z.B. http://127.0.0.1:9997
+	HTTP    *http.Client
+	User    string
+	Pass    string
+}
+
+type PathsList struct {
+	Items []PathItem `json:"items"`
+}
+
+type PathItem struct {
+	Name string `json:"name"`
+	// publisher kann nil sein, wenn keiner sendet
+	Publisher *SessionRef `json:"publisher"`
+	// readSessions sind aktive Zuschauer
+	ReadSessions []SessionRef `json:"readSessions"`
+	// BytesIn/Out können je nach Version fehlen – deshalb optional halten
+	BytesReceived *int64 `json:"bytesReceived,omitempty"`
+	BytesSent     *int64 `json:"bytesSent,omitempty"`
+}
+
+type SessionRef struct {
+	ID string `json:"id"`
+	// Bitrate und weitere Felder variieren je nach Version, wir zeigen defensiv nur das Nötigste an
+}
+
+func (c *Client) do(ctx context.Context, method, path string, out any) error {
+	if c.HTTP == nil {
+		c.HTTP = &http.Client{Timeout: 5 * time.Second}
+	}
+	req, err := http.NewRequestWithContext(ctx, method, c.BaseURL+path, nil)
+	if err != nil {
+		return err
+	}
+	if c.User != "" || c.Pass != "" {
+		req.SetBasicAuth(c.User, c.Pass)
+	}
+	resp, err := c.HTTP.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		b, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("mtx api %s: %s", resp.Status, string(b))
+	}
+	return json.NewDecoder(resp.Body).Decode(out)
+}
+
+func (c *Client) Paths(ctx context.Context) (*PathsList, error) {
+	var out PathsList
+	err := c.do(ctx, http.MethodGet, "/v3/paths/list", &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+func (p PathItem) Live() bool   { return p.Publisher != nil }
+func (p PathItem) Viewers() int { return len(p.ReadSessions) }
+
+// HLS-URL Form: http://<host>:8888/<path> (Playlist wird automatisch geliefert)
+func HLSURL(publicHost, path string) string {
+	return fmt.Sprintf("%s/%s", publicHost, path)
+}