add content-type o http headers

server/torr/stream.go

@@ -12,6 +12,7 @@ import (
 	"github.com/anacrolix/missinggo/httptoo"
 	"github.com/anacrolix/torrent"
 
+	mt "server/mimetype"
 	sets "server/settings"
 	"server/torr/state"
 )
@@ -61,8 +62,12 @@ func (t *Torrent) Stream(fileID int, req *http.Request, resp http.ResponseWriter
 
 	resp.Header().Set("Connection", "close")
 	resp.Header().Set("ETag", httptoo.EncodeQuotedString(fmt.Sprintf("%s/%s", t.Hash().HexString(), file.Path())))
+	// DLNA headers
 	resp.Header().Set("transferMode.dlna.org", "Streaming")
-
+	mime, err := mt.MimeTypeByPath(file.Path())
+	if err == nil && mime.IsMedia() {
+		resp.Header().Set("content-type", mime.String())
+	}
 	if req.Header.Get("getContentFeatures.dlna.org") != "" {
 		resp.Header().Set("contentFeatures.dlna.org", dlna.ContentFeatures{
 			SupportRange:    true,