contrib: Move the shared code into a new file
diff --git a/openbsc/contrib/rtp/rtp_replay_shared.st b/openbsc/contrib/rtp/rtp_replay_shared.st
new file mode 100644
index 0000000..cfb66bb
--- /dev/null
+++ b/openbsc/contrib/rtp/rtp_replay_shared.st
@@ -0,0 +1,69 @@
+"
+Simple UDP replay from the state files
+"
+
+PackageLoader fileInPackage: #Sockets.
+
+Object subclass: RTPReplay [
+ | filename |
+ RTPReplay class >> on: aFile [
+ ^ self new
+ file: aFile; yourself
+ ]
+
+ file: aFile [
+ filename := aFile
+ ]
+
+ streamAudio: aHost port: aPort [
+ | file last_time last_image udp_send socket dest |
+
+ last_time := nil.
+ last_image := nil.
+ file := FileStream open: filename.
+
+ "Send the payload"
+ dest := Sockets.SocketAddress byName: aHost.
+ socket := Sockets.DatagramSocket new.
+ udp_send := [:payload | | datagram |
+ datagram := Sockets.Datagram data: payload contents address: dest port: aPort.
+ socket nextPut: datagram
+ ].
+
+ [file atEnd] whileFalse: [
+ | lineStream time data now_image |
+ lineStream := file nextLine readStream.
+
+ "Read the time, skip the blank, parse the data"
+ time := Number readFrom: lineStream.
+ lineStream skip: 1.
+
+ data := WriteStream on: (ByteArray new: 30).
+ [lineStream atEnd] whileFalse: [
+ | hex |
+ hex := lineStream next: 2.
+ data nextPut: (Number readFrom: hex readStream radix: 16).
+ ].
+
+ last_time isNil
+ ifTrue: [
+ "First time, send it right now"
+ last_time := time.
+ last_image := Time millisecondClockValue.
+ udp_send value: data.
+ ]
+ ifFalse: [
+ | wait_image new_image_time |
+
+ "How long to wait?"
+ wait_image := last_image + ((time - last_time) * 1000).
+ [ wait_image > Time millisecondClockValue ] whileTrue: [].
+
+ udp_send value: data.
+ last_time := time.
+ last_image := wait_image.
+ ]
+ ]
+ ]
+]
+