Fix sending paddings

lib/membrane_rtc_engine/endpoints/webrtc/track_receiver.ex

@@ -347,8 +347,8 @@ defmodule Membrane.RTC.Engine.Endpoint.WebRTC.TrackReceiver do
   # we are doing something incorrectly
   @impl true
   def handle_info(:send_padding_packet, ctx, state)
-      when not ctx.pads.output.end_of_stream? and ctx.playback_state == :playing and
-             ctx.pads.output.caps != nil do
+      when not ctx.pads.output.end_of_stream? and ctx.playback == :playing and
+             ctx.pads.output.stream_format != nil do
     if Forwarder.can_generate_padding_packet?(state.forwarder) do
       {buffer, state} = generate_padding_packet(state)
       {[buffer: {:output, buffer}], state}

mix.lock

@@ -1,6 +1,6 @@
 %{
   "bimap": {:hex, :bimap, "1.3.0", "3ea4832e58dc83a9b5b407c6731e7bae87458aa618e6d11d8e12114a17afa4b3", [:mix], [], "hexpm", "bf5a2b078528465aa705f405a5c638becd63e41d280ada41e0f77e6d255a10b4"},
-  "bunch": {:hex, :bunch, "1.5.0", "78530e85bc3f53e1711dba654565692e2015cb6d1685e9b53bf7606b14a36c71", [:mix], [], "hexpm", "2c32f8da5d4c9e7a534c8c25aea150da696dd8624ce64f97c21ee193c12258e5"},
+  "bunch": {:hex, :bunch, "1.6.0", "4775f8cdf5e801c06beed3913b0bd53fceec9d63380cdcccbda6be125a6cfd54", [:mix], [], "hexpm", "ef4e9abf83f0299d599daed3764d19e8eac5d27a5237e5e4d5e2c129cfeb9a22"},
   "bunch_native": {:hex, :bunch_native, "0.5.0", "8ac1536789a597599c10b652e0b526d8833348c19e4739a0759a2bedfd924e63", [:mix], [{:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "24190c760e32b23b36edeb2dc4852515c7c5b3b8675b1a864e0715bdd1c8f80d"},
   "bundlex": {:hex, :bundlex, "1.1.0", "16fff7cfd8a61394c4dc2b22fe6c478ba125f6e5798e3e81ef0bc07ff237bde4", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.5", [hex: :qex, repo: "hexpm", optional: false]}, {:secure_random, "~> 0.5", [hex: :secure_random, repo: "hexpm", optional: false]}], "hexpm", "9da48a102a924baf8b6161c7c1767b5d68eeba18dd9d37a241b8b2ddf87d8a8f"},
   "bunt": {:hex, :bunt, "0.2.1", "e2d4792f7bc0ced7583ab54922808919518d0e57ee162901a16a1b6664ef3b14", [:mix], [], "hexpm", "a330bfb4245239787b15005e66ae6845c9cd524a288f0d141c148b02603777a5"},