diff --git a/src/mpv/control.gleam b/src/mpv/control.gleam
index 33daf4c..0152679 100644
--- a/src/mpv/control.gleam
+++ b/src/mpv/control.gleam
@@ -1,3 +1,4 @@
+import gleam/dynamic/decode
 import gleam/json
 import gleam/result
 
@@ -10,6 +11,10 @@ pub type Control {
   Exit
 }
 
+pub type ControlError {
+  ControlError(details: String)
+}
+
 pub fn from_key(key: Key) -> Result(Control, Nil) {
   case key {
     internal.Char(char) -> char_control(char)
@@ -32,8 +37,13 @@ pub fn toggle_play_pause(socket: Socket) -> Result(Nil, Reason) {
   result.map(send_command(socket, command), fn(_) { Nil })
 }
 
+// {\"data\":\"12.945425\",\"request_id\":0,\"error\":\"success\"}\n
 // https://mpv.io/manual/master/#command-interface-playback-time
-pub fn get_playback_time(socket: Socket) -> Result(String, Reason) {
+pub type PlaybackTime {
+  PlaybackTime(data: Int, error: String)
+}
+
+pub fn get_playback_time(socket: Socket) -> Result(String, ControlError) {
   let command =
     json.object([
       #(
@@ -42,7 +52,17 @@ pub fn get_playback_time(socket: Socket) -> Result(String, Reason) {
       ),
     ])
 
-  send_command(socket, command)
+  result.map(send_command(socket, command), fn(json_string: String) {
+    let decoder = {
+      use data <- decode.field("data", decode.int)
+      use error <- decode.field("error", decode.string)
+      decode.success(PlaybackTime(data:, error:))
+    }
+
+    result.map_error(json.parse(from: json_string, using: decoder), fn(r) {
+      todo
+    })
+  })
 }
 
 fn send_command(socket: Socket, command: json.Json) -> Result(String, Reason) {