rtpenc: Set the timestamp properly when sending mpegts data, too

Signed-off-by: Martin Storsjö <martin@martin.st>

libavformat/rtpenc.c

@@ -452,6 +452,7 @@ static void rtp_send_mpegts_raw(AVFormatContext *s1,
     RTPMuxContext *s = s1->priv_data;
     int len, out_len;
 
+    s->timestamp = s->cur_timestamp;
     while (size >= TS_PACKET_SIZE) {
         len = s->max_payload_size - (s->buf_ptr - s->buf);
         if (len > size)