From ea1f56aa6ce52de61dd4d778c166b86efc52808f Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Sat, 4 Dec 2021 19:29:06 +0100
Subject: [PATCH 01/14] updated to use new buffer pts field

---
 lib/deserializer.ex        |   2 +-
 lib/serializer.ex          |   2 +-
 mix.exs                    |   4 ++--
 mix.lock                   |  16 ++++++++--------
 test/fixtures/capture.dump | Bin 182033 -> 198287 bytes
 test/serializer_test.exs   |   4 ++--
 6 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/lib/deserializer.ex b/lib/deserializer.ex
index 147c122..f3793bb 100644
--- a/lib/deserializer.ex
+++ b/lib/deserializer.ex
@@ -87,7 +87,7 @@ defmodule Membrane.Element.IVF.Deserializer do
            Headers.parse_ivf_frame_header(payload),
          <<frame::binary-size(size_of_frame), rest::binary()>> <- rest do
       timestamp = timestamp * (timebase * Time.second())
-      {:ok, %Buffer{metadata: %{timestamp: timestamp}, payload: frame}, rest}
+      {:ok, %Buffer{pts: timestamp, payload: frame}, rest}
     else
       _error -> {:error_too_short, payload}
     end
diff --git a/lib/serializer.ex b/lib/serializer.ex
index 069b813..a5d6621 100644
--- a/lib/serializer.ex
+++ b/lib/serializer.ex
@@ -48,7 +48,7 @@ defmodule Membrane.Element.IVF.Serializer do
 
   @impl true
   def handle_process(:input, buffer, ctx, state) do
-    %Buffer{payload: frame, metadata: %{timestamp: timestamp}} = buffer
+    %Buffer{payload: frame, pts: timestamp} = buffer
 
     ivf_frame =
       IVF.Headers.create_ivf_frame_header(byte_size(frame), timestamp, state.timebase) <>
diff --git a/mix.exs b/mix.exs
index cc2b2a3..17d4e69 100644
--- a/mix.exs
+++ b/mix.exs
@@ -36,11 +36,11 @@ defmodule Membrane.IVF.Plugin.MixProject do
 
   defp deps do
     [
-      {:membrane_core, "~> 0.7.0"},
+      {:membrane_core, "~> 0.8.0"},
       {:ex_doc, "~> 0.24", only: :dev, runtime: false},
       {:dialyxir, "~> 1.1.0", only: :dev, runtime: false},
       {:credo, "~> 1.4", only: :dev, runtime: false},
-      {:membrane_file_plugin, "~> 0.6.0", only: :test}
+      {:membrane_file_plugin, "~> 0.7.0", only: :test}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index 74f11f8..78d1a56 100644
--- a/mix.lock
+++ b/mix.lock
@@ -2,22 +2,22 @@
   "bunch": {:hex, :bunch, "1.3.0", "51b4423088b7fb9e21eae6d6bc5e5d219d955ea5556fbd6130bfb6213df4be32", [:mix], [], "hexpm", "9ad233a2bacc0dae8aa6553a9b9057f27446443b1c5903c3479b6f9f3820ce2d"},
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"},
   "coerce": {:hex, :coerce, "1.0.1", "211c27386315dc2894ac11bc1f413a0e38505d808153367bd5c6e75a4003d096", [:mix], [], "hexpm", "b44a691700f7a1a15b4b7e2ff1fa30bebd669929ac8aa43cffe9e2f8bf051cf1"},
-  "credo": {:hex, :credo, "1.5.6", "e04cc0fdc236fefbb578e0c04bd01a471081616e741d386909e527ac146016c6", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2.8", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "4b52a3e558bd64e30de62a648518a5ea2b6e3e5d2b164ef5296244753fc7eb17"},
+  "credo": {:hex, :credo, "1.6.1", "7dc76dcdb764a4316c1596804c48eada9fff44bd4b733a91ccbf0c0f368be61e", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2.8", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "698607fb5993720c7e93d2d8e76f2175bba024de964e160e2f7151ef3ab82ac5"},
   "dialyxir": {:hex, :dialyxir, "1.1.0", "c5aab0d6e71e5522e77beff7ba9e08f8e02bad90dfbeffae60eaf0cb47e29488", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "07ea8e49c45f15264ebe6d5b93799d4dd56a44036cf42d0ad9c960bc266c0b9a"},
-  "earmark_parser": {:hex, :earmark_parser, "1.4.16", "607709303e1d4e3e02f1444df0c821529af1c03b8578dfc81bb9cf64553d02b9", [:mix], [], "hexpm", "69fcf696168f5a274dd012e3e305027010658b2d1630cef68421d6baaeaccead"},
+  "earmark_parser": {:hex, :earmark_parser, "1.4.18", "e1b2be73eb08a49fb032a0208bf647380682374a725dfb5b9e510def8397f6f2", [:mix], [], "hexpm", "114a0e85ec3cf9e04b811009e73c206394ffecfcc313e0b346de0d557774ee97"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
-  "ex_doc": {:hex, :ex_doc, "0.25.5", "ac3c5425a80b4b7c4dfecdf51fa9c23a44877124dd8ca34ee45ff608b1c6deb9", [:mix], [{:earmark_parser, "~> 1.4.0", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "688cfa538cdc146bc4291607764a7f1fcfa4cce8009ecd62de03b27197528350"},
+  "ex_doc": {:hex, :ex_doc, "0.26.0", "1922164bac0b18b02f84d6f69cab1b93bc3e870e2ad18d5dacb50a9e06b542a3", [:mix], [{:earmark_parser, "~> 1.4.0", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "2775d66e494a9a48355db7867478ffd997864c61c65a47d31c4949459281c78d"},
   "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
   "jason": {:hex, :jason, "1.2.2", "ba43e3f2709fd1aa1dce90aaabfd039d000469c05c56f0b8e31978e03fa39052", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "18a228f5f0058ee183f29f9eae0805c6e59d61c3b006760668d8d18ff0d12179"},
   "makeup": {:hex, :makeup, "1.0.5", "d5a830bc42c9800ce07dd97fa94669dfb93d3bf5fcf6ea7a0c67b2e0e4a7f26c", [:mix], [{:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cfa158c02d3f5c0c665d0af11512fed3fba0144cf1aadee0f2ce17747fba2ca9"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.15.2", "dc72dfe17eb240552857465cc00cce390960d9a0c055c4ccd38b70629227e97c", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.1", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "fd23ae48d09b32eff49d4ced2b43c9f086d402ee4fd4fcb2d7fad97fa8823e75"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
-  "membrane_core": {:hex, :membrane_core, "0.7.0", "fc773f3b79ad3b5631c3a0754c429b333a4e024989aa4a63e49aa796d2fa1bd8", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 2.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "4d04d42712d5548cf22993d85a7fdee9f4b6dfe31500ed299ed692fabdbc9824"},
-  "membrane_file_plugin": {:hex, :membrane_file_plugin, "0.6.0", "ddaaa67e9de7fd6f03aedb82b0c6f31110cdccce21adf4486af013b3eab943a1", [:mix], [{:membrane_core, "~> 0.7.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:mockery, "~> 2.2", [hex: :mockery, repo: "hexpm", optional: false]}], "hexpm", "9a570b96bd6f1053cc33eb47285efcf102532dafdbf78e96c39f6897b01d287e"},
+  "membrane_core": {:hex, :membrane_core, "0.8.1", "33df0e4c76c05a2be57042893b05516886462baefdf95b7299e4d2f5db32dea3", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 2.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "5574db35f08de1e95648f9c3acce38c5f318216c5a5ae5e3f253f7edad8fdc1b"},
+  "membrane_file_plugin": {:hex, :membrane_file_plugin, "0.7.0", "200e416e50e1545473fcfc9020253a797bf884f7d238227466e67266e7e71e5e", [:mix], [{:membrane_core, "~> 0.8.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:mockery, "~> 2.2", [hex: :mockery, repo: "hexpm", optional: false]}], "hexpm", "9efe63c780a021552293f3d7ea8b62c93675a8cb9aca34f71e6e979df490cf21"},
   "mockery": {:hex, :mockery, "2.3.1", "a02fd60b10ac9ed37a7a2ecf6786c1f1dd5c75d2b079a60594b089fba32dc087", [:mix], [], "hexpm", "1d0971d88ebf084e962da3f2cfee16f0ea8e04ff73a7710428500d4500b947fa"},
-  "nimble_parsec": {:hex, :nimble_parsec, "1.1.0", "3a6fca1550363552e54c216debb6a9e95bd8d32348938e13de5eda962c0d7f89", [:mix], [], "hexpm", "08eb32d66b706e913ff748f11694b17981c0b04a33ef470e33e11b3d3ac8f54b"},
+  "nimble_parsec": {:hex, :nimble_parsec, "1.2.0", "b44d75e2a6542dcb6acf5d71c32c74ca88960421b6874777f79153bbbbd7dccc", [:mix], [], "hexpm", "52b2871a7515a5ac49b00f214e4165a40724cf99798d8e4a65e4fd64ebd002c1"},
   "numbers": {:hex, :numbers, "5.2.4", "f123d5bb7f6acc366f8f445e10a32bd403c8469bdbce8ce049e1f0972b607080", [:mix], [{:coerce, "~> 1.0", [hex: :coerce, repo: "hexpm", optional: false]}, {:decimal, "~> 1.9 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "eeccf5c61d5f4922198395bf87a465b6f980b8b862dd22d28198c5e6fab38582"},
-  "qex": {:hex, :qex, "0.5.0", "5a3a9becf67d4006377c4c247ffdaaa8ae5b3634a0caadb788dc24d6125068f4", [:mix], [], "hexpm", "4ad6f6421163cd8204509a119a5c9813cbb969cfb8d802a9dc49b968bffbac2a"},
+  "qex": {:hex, :qex, "0.5.1", "0d82c0f008551d24fffb99d97f8299afcb8ea9cf99582b770bd004ed5af63fd6", [:mix], [], "hexpm", "935a39fdaf2445834b95951456559e9dc2063d0a055742c558a99987b38d6bab"},
   "ratio": {:hex, :ratio, "2.4.2", "c8518f3536d49b1b00d88dd20d49f8b11abb7819638093314a6348139f14f9f9", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}, {:numbers, "~> 5.2.0", [hex: :numbers, repo: "hexpm", optional: false]}], "hexpm", "441ef6f73172a3503de65ccf1769030997b0d533b1039422f1e5e0e0b4cbf89e"},
-  "telemetry": {:hex, :telemetry, "0.4.3", "a06428a514bdbc63293cd9a6263aad00ddeb66f608163bdec7c8995784080818", [:rebar3], [], "hexpm", "eb72b8365ffda5bed68a620d1da88525e326cb82a75ee61354fc24b844768041"},
+  "telemetry": {:hex, :telemetry, "1.0.0", "0f453a102cdf13d506b7c0ab158324c337c41f1cc7548f0bc0e130bbf0ae9452", [:rebar3], [], "hexpm", "73bc09fa59b4a0284efb4624335583c528e07ec9ae76aca96ea0673850aec57a"},
 }
diff --git a/test/fixtures/capture.dump b/test/fixtures/capture.dump
index d88ba737bd23a3eba98936cc469713c537109364..3315975fc5000c33ba3cd3ef9d49a47bbda3c337 100644
GIT binary patch
delta 8905
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O-OF%lU}I?u5c5AoLb7oH

diff --git a/test/serializer_test.exs b/test/serializer_test.exs
index a276969..9c83009 100644
--- a/test/serializer_test.exs
+++ b/test/serializer_test.exs
@@ -55,8 +55,8 @@ defmodule Membrane.Element.IVF.SerializerTest do
   correctly calculates timestamp in frame header.
   """
   test "appends headers correctly" do
-    buffer_1 = %Buffer{payload: @frame, metadata: %{timestamp: 0}}
-    buffer_2 = %Buffer{payload: @frame, metadata: %{timestamp: 100_000_000 <|> 3}}
+    buffer_1 = %Buffer{payload: @frame, pts: 0}
+    buffer_2 = %Buffer{payload: @frame, pts: 100_000_000 <|> 3}
 
     {:ok, pipeline} =
       %Testing.Pipeline.Options{

From f46cbf8a788b94dd72442db7479c8986a4af490d Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Sat, 4 Dec 2021 19:36:27 +0100
Subject: [PATCH 02/14] delete dead path

---
 lib/deserializer.ex | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/lib/deserializer.ex b/lib/deserializer.ex
index f3793bb..16eddd0 100644
--- a/lib/deserializer.ex
+++ b/lib/deserializer.ex
@@ -67,12 +67,9 @@ defmodule Membrane.Element.IVF.Deserializer do
   def handle_process(:input, buffer, _ctx, state) do
     state = %State{state | frame_acc: state.frame_acc <> buffer.payload}
 
-    with {:ok, buffers, state} <- flush_acc(state, []) do
-      {{:ok, buffer: {:output, buffers}, redemand: :output}, state}
-    else
-      {:error_too_short, payload} ->
-        {{:ok, redemand: :output}, %State{state | frame_acc: payload}}
-    end
+    {:ok, buffers, state} = flush_acc(state, [])
+
+    {{:ok, buffer: {:output, buffers}, redemand: :output}, state}
   end
 
   defp flush_acc(state, buffers) do

From 99ba7fe64b09bf2300bb6c0dc25d40c4f75be559 Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Sat, 4 Dec 2021 19:45:31 +0100
Subject: [PATCH 03/14] prepare release

---
 CHANGELOG.md | 3 +++
 README.md    | 2 +-
 mix.exs      | 2 +-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05ac2c8..73eec54 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.3.0
+### Release notes:
+  * Use new buffer pts field instead of metadata.timestamp #8
 ## 0.2.0
 ### Release notes:
   * serialization and deserialization of IVF files #4
diff --git a/README.md b/README.md
index 23d3cf0..5635f85 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ The package can be installed by adding `membrane_ivf_plugin` to your list of dep
 ```elixir
 def deps do
   [
-    {:membrane_ivf_plugin, "~> 0.2.0"}
+    {:membrane_ivf_plugin, "~> 0.3.0"}
   ]
 end
 ```
diff --git a/mix.exs b/mix.exs
index 17d4e69..40881ff 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule Membrane.IVF.Plugin.MixProject do
   use Mix.Project
 
-  @version "0.2.0"
+  @version "0.3.0"
   @github_url "https://github.com/membraneframework/membrane_ivf_plugin"
 
   def project do

From 02f7314de89d59008fc4592136c454e1921cebea Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Mon, 6 Dec 2021 15:51:57 +0100
Subject: [PATCH 04/14] test if passing 0x0 resolution yields valid ivfs

---
 lib/serializer.ex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/serializer.ex b/lib/serializer.ex
index a5d6621..a0d409f 100644
--- a/lib/serializer.ex
+++ b/lib/serializer.ex
@@ -10,8 +10,8 @@ defmodule Membrane.Element.IVF.Serializer do
   alias Membrane.{Buffer, RemoteStream}
   alias Membrane.{VP9, VP8}
 
-  def_options width: [spec: [integer], description: "width of frame"],
-              height: [spec: [integer], description: "height of frame"],
+  def_options width: [spec: [integer], default: 0, description: "width of frame"],
+              height: [spec: [integer], default: 0, description: "height of frame"],
               scale: [spec: [integer], default: 1, description: "scale"],
               rate: [spec: [integer], default: 1_000_000, description: "rate"],
               frame_count: [spec: [integer], default: 0, description: "number of frames"]

From 15d97ef278b7d20a9cf00a9e80e1458c1d813d66 Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Mon, 6 Dec 2021 21:41:33 +0100
Subject: [PATCH 05/14] serializer now accepts plain vp8/9 caps; allow passing
 options via caps

---
 lib/membrane_element_ivf/headers.ex |  2 +
 lib/serializer.ex                   | 71 +++++++++++++++++++++--------
 mix.exs                             |  4 ++
 mix.lock                            |  2 +
 4 files changed, 59 insertions(+), 20 deletions(-)

diff --git a/lib/membrane_element_ivf/headers.ex b/lib/membrane_element_ivf/headers.ex
index 889b001..23576e7 100644
--- a/lib/membrane_element_ivf/headers.ex
+++ b/lib/membrane_element_ivf/headers.ex
@@ -81,7 +81,9 @@ defmodule Membrane.Element.IVF.Headers do
     codec_four_cc =
       case caps do
         %Membrane.RemoteStream{content_format: VP9} -> "VP90"
+        %VP9{} -> "VP90"
         %Membrane.RemoteStream{content_format: VP8} -> "VP80"
+        %VP8{} -> "VP80"
         _unknown -> "\0\0\0\0"
       end
 
diff --git a/lib/serializer.ex b/lib/serializer.ex
index a0d409f..0dd6874 100644
--- a/lib/serializer.ex
+++ b/lib/serializer.ex
@@ -17,28 +17,38 @@ defmodule Membrane.Element.IVF.Serializer do
               frame_count: [spec: [integer], default: 0, description: "number of frames"]
 
   def_input_pad :input,
-    caps: {RemoteStream, content_format: one_of([VP9, VP8]), type: :packetized},
+    caps: [
+      VP8,
+      VP9,
+      {RemoteStream, content_format: one_of([VP8, VP9]), type: :packetized}
+    ],
     demand_unit: :buffers
 
   def_output_pad :output, caps: :any
 
   defmodule State do
     @moduledoc false
-    defstruct [:width, :height, :timebase, :first_frame, :frame_count]
+    defstruct [:width, :height, :scale, :rate, :timebase, :frame_count, first_frame: true]
   end
 
   @impl true
   def handle_init(options) do
-    use Ratio
+    update_state(%State{}, options)
+  end
+
+  @impl true
+  def handle_caps(:input, %VP8{} = caps, _ctx, state) do
+    update_state(state, caps)
+  end
+
+  @impl true
+  def handle_caps(:input, %VP9{} = caps, _ctx, state) do
+    update_state(state, caps)
+  end
 
-    {:ok,
-     %State{
-       width: options.width,
-       height: options.height,
-       timebase: options.scale <|> options.rate,
-       frame_count: options.frame_count,
-       first_frame: true
-     }}
+  @impl true
+  def handle_caps(_, _, _, state) do
+    {:ok, state}
   end
 
   @impl true
@@ -55,19 +65,40 @@ defmodule Membrane.Element.IVF.Serializer do
         frame
 
     ivf_file_header =
-      if state.first_frame,
-        do:
-          IVF.Headers.create_ivf_header(
-            state.width,
-            state.height,
-            state.timebase,
-            state.frame_count,
-            ctx.pads.input.caps
-          )
+      if state.first_frame do
+        if state.width == 0 or state.height == 0,
+          do:
+            IO.warn("Serializing stream to IVF without width or height given via options or caps")
+
+        IVF.Headers.create_ivf_header(
+          state.width,
+          state.height,
+          state.timebase,
+          state.frame_count,
+          ctx.pads.input.caps
+        )
+      end
 
     ivf_buffer = (ivf_file_header || "") <> ivf_frame
 
     {{:ok, buffer: {:output, %Buffer{buffer | payload: ivf_buffer}}, redemand: :output},
      %State{state | first_frame: false}}
   end
+
+  defp update_state(state, new_fields) do
+    use Ratio
+
+    instantiated_fields =
+      new_fields
+      |> Map.from_struct()
+      |> Enum.filter(fn {_, v} -> v != nil end)
+      |> Enum.into(%{})
+
+    new_state =
+      state
+      |> Map.from_struct()
+      |> Map.merge(instantiated_fields)
+
+    {:ok, struct!(State, %{new_state | timebase: new_state.scale <|> new_state.rate})}
+  end
 end
diff --git a/mix.exs b/mix.exs
index aaa35e6..2147d0b 100644
--- a/mix.exs
+++ b/mix.exs
@@ -37,6 +37,10 @@ defmodule Membrane.IVF.Plugin.MixProject do
   defp deps do
     [
       {:membrane_core, "~> 0.8.0"},
+      {:membrane_vp8_format,
+       github: "membraneframework/membrane_vp8_format", branch: "add-stream-params"},
+      {:membrane_vp9_format,
+       github: "membraneframework/membrane_vp9_format", branch: "add-stream-params"},
       {:ex_doc, "~> 0.24", only: :dev, runtime: false},
       {:dialyxir, "~> 1.1.0", only: :dev, runtime: false},
       {:credo, "~> 1.4", only: :dev, runtime: false},
diff --git a/mix.lock b/mix.lock
index 78d1a56..a42a90d 100644
--- a/mix.lock
+++ b/mix.lock
@@ -14,6 +14,8 @@
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
   "membrane_core": {:hex, :membrane_core, "0.8.1", "33df0e4c76c05a2be57042893b05516886462baefdf95b7299e4d2f5db32dea3", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 2.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "5574db35f08de1e95648f9c3acce38c5f318216c5a5ae5e3f253f7edad8fdc1b"},
   "membrane_file_plugin": {:hex, :membrane_file_plugin, "0.7.0", "200e416e50e1545473fcfc9020253a797bf884f7d238227466e67266e7e71e5e", [:mix], [{:membrane_core, "~> 0.8.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:mockery, "~> 2.2", [hex: :mockery, repo: "hexpm", optional: false]}], "hexpm", "9efe63c780a021552293f3d7ea8b62c93675a8cb9aca34f71e6e979df490cf21"},
+  "membrane_vp8_format": {:git, "https://github.com/membraneframework/membrane_vp8_format.git", "b3a2e03181db7d7f8afd74d2a675b6f7be9fdee0", [branch: "add-stream-params"]},
+  "membrane_vp9_format": {:git, "https://github.com/membraneframework/membrane_vp9_format.git", "e1931a21c3f081e97055fa90e0c1822c8a134e13", [branch: "add-stream-params"]},
   "mockery": {:hex, :mockery, "2.3.1", "a02fd60b10ac9ed37a7a2ecf6786c1f1dd5c75d2b079a60594b089fba32dc087", [:mix], [], "hexpm", "1d0971d88ebf084e962da3f2cfee16f0ea8e04ff73a7710428500d4500b947fa"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.2.0", "b44d75e2a6542dcb6acf5d71c32c74ca88960421b6874777f79153bbbbd7dccc", [:mix], [], "hexpm", "52b2871a7515a5ac49b00f214e4165a40724cf99798d8e4a65e4fd64ebd002c1"},
   "numbers": {:hex, :numbers, "5.2.4", "f123d5bb7f6acc366f8f445e10a32bd403c8469bdbce8ce049e1f0972b607080", [:mix], [{:coerce, "~> 1.0", [hex: :coerce, repo: "hexpm", optional: false]}, {:decimal, "~> 1.9 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "eeccf5c61d5f4922198395bf87a465b6f980b8b862dd22d28198c5e6fab38582"},

From 1dc59af447b5ba77405fcc6cb619c9be5b0f1c3c Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Mon, 6 Dec 2021 21:49:48 +0100
Subject: [PATCH 06/14] fix credo

---
 lib/serializer.ex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/serializer.ex b/lib/serializer.ex
index 0dd6874..a6622fa 100644
--- a/lib/serializer.ex
+++ b/lib/serializer.ex
@@ -47,7 +47,7 @@ defmodule Membrane.Element.IVF.Serializer do
   end
 
   @impl true
-  def handle_caps(_, _, _, state) do
+  def handle_caps(_pad, _caps, _ctx, state) do
     {:ok, state}
   end
 

From 0f87d88775b45cc7f15eda5e7553373590d46d30 Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Mon, 6 Dec 2021 21:55:18 +0100
Subject: [PATCH 07/14] add release note

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d3d701..75751a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## 0.4.0
 ### Release notes:
   * Use new buffer pts field instead of metadata.timestamp #8
+  * Allow vp8/vp9 input caps #9
 ## 0.3.0
 ### Release notes:
   * fix lint and bump membrane_core

From eaac885b148d506fa19a1b4274ac555e00d15085 Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Mon, 6 Dec 2021 22:16:32 +0100
Subject: [PATCH 08/14] deserializer now sends vp8/vp9 caps

---
 lib/deserializer.ex       | 21 +++++++++++++++++----
 test/integration_test.exs |  6 +-----
 test/serializer_test.exs  |  2 +-
 3 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/lib/deserializer.ex b/lib/deserializer.ex
index 16eddd0..4cf0910 100644
--- a/lib/deserializer.ex
+++ b/lib/deserializer.ex
@@ -7,7 +7,7 @@ defmodule Membrane.Element.IVF.Deserializer do
   use Membrane.Filter
   use Ratio
 
-  alias Membrane.{Time, RemoteStream, Buffer}
+  alias Membrane.{Time, Buffer}
   alias Membrane.{VP9, VP8}
   alias Membrane.Element.IVF.Headers
   alias Membrane.Element.IVF.Headers.FrameHeader
@@ -15,7 +15,7 @@ defmodule Membrane.Element.IVF.Deserializer do
   def_input_pad :input, caps: :any, demand_unit: :buffers
 
   def_output_pad :output,
-    caps: {RemoteStream, content_format: one_of([VP9, VP8]), type: :packetized}
+    caps: [VP9, VP8]
 
   defmodule State do
     @moduledoc false
@@ -45,8 +45,21 @@ defmodule Membrane.Element.IVF.Deserializer do
          {:ok, buffer, rest} <- get_buffer(rest, file_header.scale <|> file_header.rate) do
       caps =
         case file_header.four_cc do
-          "VP90" -> %Membrane.RemoteStream{content_format: VP9, type: :packetized}
-          "VP80" -> %Membrane.RemoteStream{content_format: VP8, type: :packetized}
+          "VP90" ->
+            %VP9{
+              width: file_header.width,
+              height: file_header.height,
+              scale: file_header.scale,
+              rate: file_header.rate
+            }
+
+          "VP80" ->
+            %VP8{
+              width: file_header.width,
+              height: file_header.height,
+              scale: file_header.scale,
+              rate: file_header.rate
+            }
         end
 
       {{:ok, caps: {:output, caps}, buffer: {:output, buffer}, redemand: :output},
diff --git a/test/integration_test.exs b/test/integration_test.exs
index c93f073..ce74cea 100644
--- a/test/integration_test.exs
+++ b/test/integration_test.exs
@@ -21,11 +21,7 @@ defmodule Membrane.Element.IVF.IntegrationTest do
         children: [
           file_source: %Membrane.File.Source{location: options.input.path},
           deserializer: IVF.Deserializer,
-          serializer: %IVF.Serializer{
-            width: options.input.width,
-            height: options.input.height,
-            rate: 30
-          },
+          serializer: IVF.Serializer,
           file_sink: %Membrane.File.Sink{location: options.result_file}
         ],
         links: [
diff --git a/test/serializer_test.exs b/test/serializer_test.exs
index 9c83009..caa2254 100644
--- a/test/serializer_test.exs
+++ b/test/serializer_test.exs
@@ -25,11 +25,11 @@ defmodule Membrane.Element.IVF.SerializerTest do
 
       spec = %ParentSpec{
         children: [
-          ivf_serializer: %IVF.Serializer{width: 1080, height: 720, rate: 30},
           source: %Testing.Source{
             output: Testing.Source.output_from_buffers(options.buffers),
             caps: %RemoteStream{content_format: VP9, type: :packetized}
           },
+          ivf_serializer: %IVF.Serializer{width: 1080, height: 720, rate: 30},
           sink: sink
         ],
         links: [

From 510fc23654c1abfbf4444d3d93708a6e6ed28d9d Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Wed, 8 Dec 2021 12:30:44 +0100
Subject: [PATCH 09/14] comments

---
 lib/deserializer.ex      |  6 +++---
 lib/serializer.ex        | 29 ++++++++++++++++++-----------
 test/serializer_test.exs |  2 +-
 3 files changed, 22 insertions(+), 15 deletions(-)

diff --git a/lib/deserializer.ex b/lib/deserializer.ex
index 4cf0910..c80d58c 100644
--- a/lib/deserializer.ex
+++ b/lib/deserializer.ex
@@ -69,7 +69,7 @@ defmodule Membrane.Element.IVF.Deserializer do
          timebase: file_header.scale <|> file_header.rate
        }}
     else
-      {:error_too_short, _payload} ->
+      :error_too_short ->
         {{:ok, redemand: :output}, state}
 
       _error ->
@@ -88,7 +88,7 @@ defmodule Membrane.Element.IVF.Deserializer do
   defp flush_acc(state, buffers) do
     case get_buffer(state.frame_acc, state.timebase) do
       {:ok, buffer, rest} -> flush_acc(%State{state | frame_acc: rest}, [buffer | buffers])
-      _error -> {:ok, buffers |> Enum.reverse(), state}
+      _error -> {:ok, Enum.reverse(buffers), state}
     end
   end
 
@@ -99,7 +99,7 @@ defmodule Membrane.Element.IVF.Deserializer do
       timestamp = timestamp * (timebase * Time.second())
       {:ok, %Buffer{pts: timestamp, payload: frame}, rest}
     else
-      _error -> {:error_too_short, payload}
+      _error -> :error_too_short
     end
   end
 end
diff --git a/lib/serializer.ex b/lib/serializer.ex
index a6622fa..e82d6bc 100644
--- a/lib/serializer.ex
+++ b/lib/serializer.ex
@@ -33,17 +33,26 @@ defmodule Membrane.Element.IVF.Serializer do
 
   @impl true
   def handle_init(options) do
-    update_state(%State{}, options)
+    use Ratio
+    state = apply_params_to_state(%State{}, options)
+    state = %State{state | timebase: state.scale <|> state.rate}
+    {:ok, state}
   end
 
   @impl true
   def handle_caps(:input, %VP8{} = caps, _ctx, state) do
-    update_state(state, caps)
+    use Ratio
+    state = apply_params_to_state(state, caps)
+    state = %State{state | timebase: state.scale <|> state.rate}
+    {:ok, state}
   end
 
   @impl true
   def handle_caps(:input, %VP9{} = caps, _ctx, state) do
-    update_state(state, caps)
+    use Ratio
+    state = apply_params_to_state(state, caps)
+    state = %State{state | timebase: state.scale <|> state.rate}
+    {:ok, state}
   end
 
   @impl true
@@ -68,7 +77,7 @@ defmodule Membrane.Element.IVF.Serializer do
       if state.first_frame do
         if state.width == 0 or state.height == 0,
           do:
-            IO.warn("Serializing stream to IVF without width or height given via options or caps")
+            IO.warn("Serializing stream to IVF without width or height. These parameters can be passed via options or caps")
 
         IVF.Headers.create_ivf_header(
           state.width,
@@ -85,11 +94,9 @@ defmodule Membrane.Element.IVF.Serializer do
      %State{state | first_frame: false}}
   end
 
-  defp update_state(state, new_fields) do
-    use Ratio
-
-    instantiated_fields =
-      new_fields
+  defp apply_params_to_state(state, params) do
+    non_nil_params =
+      params
       |> Map.from_struct()
       |> Enum.filter(fn {_, v} -> v != nil end)
       |> Enum.into(%{})
@@ -97,8 +104,8 @@ defmodule Membrane.Element.IVF.Serializer do
     new_state =
       state
       |> Map.from_struct()
-      |> Map.merge(instantiated_fields)
+      |> Map.merge(non_nil_params)
 
-    {:ok, struct!(State, %{new_state | timebase: new_state.scale <|> new_state.rate})}
+    struct!(State, new_state)
   end
 end
diff --git a/test/serializer_test.exs b/test/serializer_test.exs
index caa2254..a9fc270 100644
--- a/test/serializer_test.exs
+++ b/test/serializer_test.exs
@@ -29,7 +29,7 @@ defmodule Membrane.Element.IVF.SerializerTest do
             output: Testing.Source.output_from_buffers(options.buffers),
             caps: %RemoteStream{content_format: VP9, type: :packetized}
           },
-          ivf_serializer: %IVF.Serializer{width: 1080, height: 720, rate: 30},
+          ivf_serializer: %IVF.Serializer{width: 1080, height: 720, rate: 30, scale: 1},
           sink: sink
         ],
         links: [

From 48d0186a35b5af69842f0ed38f3bf17f4c25ea5a Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Wed, 8 Dec 2021 13:07:06 +0100
Subject: [PATCH 10/14] remove scale, rate

---
 lib/deserializer.ex       |  8 ++------
 lib/serializer.ex         | 41 +++++++++++++--------------------------
 test/integration_test.exs |  2 +-
 test/serializer_test.exs  |  2 +-
 4 files changed, 18 insertions(+), 35 deletions(-)

diff --git a/lib/deserializer.ex b/lib/deserializer.ex
index c80d58c..e49f135 100644
--- a/lib/deserializer.ex
+++ b/lib/deserializer.ex
@@ -48,17 +48,13 @@ defmodule Membrane.Element.IVF.Deserializer do
           "VP90" ->
             %VP9{
               width: file_header.width,
-              height: file_header.height,
-              scale: file_header.scale,
-              rate: file_header.rate
+              height: file_header.height
             }
 
           "VP80" ->
             %VP8{
               width: file_header.width,
-              height: file_header.height,
-              scale: file_header.scale,
-              rate: file_header.rate
+              height: file_header.height
             }
         end
 
diff --git a/lib/serializer.ex b/lib/serializer.ex
index e82d6bc..f4f81cd 100644
--- a/lib/serializer.ex
+++ b/lib/serializer.ex
@@ -34,25 +34,25 @@ defmodule Membrane.Element.IVF.Serializer do
   @impl true
   def handle_init(options) do
     use Ratio
-    state = apply_params_to_state(%State{}, options)
-    state = %State{state | timebase: state.scale <|> state.rate}
-    {:ok, state}
+
+    {:ok,
+     %State{
+       width: options.width,
+       height: options.height,
+       timebase: options.scale <|> options.rate,
+       frame_count: options.frame_count,
+       first_frame: true
+     }}
   end
 
   @impl true
   def handle_caps(:input, %VP8{} = caps, _ctx, state) do
-    use Ratio
-    state = apply_params_to_state(state, caps)
-    state = %State{state | timebase: state.scale <|> state.rate}
-    {:ok, state}
+    {:ok, %State{state | height: caps.height, width: caps.width}}
   end
 
   @impl true
   def handle_caps(:input, %VP9{} = caps, _ctx, state) do
-    use Ratio
-    state = apply_params_to_state(state, caps)
-    state = %State{state | timebase: state.scale <|> state.rate}
-    {:ok, state}
+    {:ok, %State{state | height: caps.height, width: caps.width}}
   end
 
   @impl true
@@ -77,7 +77,9 @@ defmodule Membrane.Element.IVF.Serializer do
       if state.first_frame do
         if state.width == 0 or state.height == 0,
           do:
-            IO.warn("Serializing stream to IVF without width or height. These parameters can be passed via options or caps")
+            IO.warn(
+              "Serializing stream to IVF without width or height. These parameters can be passed via options or caps"
+            )
 
         IVF.Headers.create_ivf_header(
           state.width,
@@ -93,19 +95,4 @@ defmodule Membrane.Element.IVF.Serializer do
     {{:ok, buffer: {:output, %Buffer{buffer | payload: ivf_buffer}}, redemand: :output},
      %State{state | first_frame: false}}
   end
-
-  defp apply_params_to_state(state, params) do
-    non_nil_params =
-      params
-      |> Map.from_struct()
-      |> Enum.filter(fn {_, v} -> v != nil end)
-      |> Enum.into(%{})
-
-    new_state =
-      state
-      |> Map.from_struct()
-      |> Map.merge(non_nil_params)
-
-    struct!(State, new_state)
-  end
 end
diff --git a/test/integration_test.exs b/test/integration_test.exs
index ce74cea..6527349 100644
--- a/test/integration_test.exs
+++ b/test/integration_test.exs
@@ -21,7 +21,7 @@ defmodule Membrane.Element.IVF.IntegrationTest do
         children: [
           file_source: %Membrane.File.Source{location: options.input.path},
           deserializer: IVF.Deserializer,
-          serializer: IVF.Serializer,
+          serializer: %IVF.Serializer{rate: 30},
           file_sink: %Membrane.File.Sink{location: options.result_file}
         ],
         links: [
diff --git a/test/serializer_test.exs b/test/serializer_test.exs
index a9fc270..caa2254 100644
--- a/test/serializer_test.exs
+++ b/test/serializer_test.exs
@@ -29,7 +29,7 @@ defmodule Membrane.Element.IVF.SerializerTest do
             output: Testing.Source.output_from_buffers(options.buffers),
             caps: %RemoteStream{content_format: VP9, type: :packetized}
           },
-          ivf_serializer: %IVF.Serializer{width: 1080, height: 720, rate: 30, scale: 1},
+          ivf_serializer: %IVF.Serializer{width: 1080, height: 720, rate: 30},
           sink: sink
         ],
         links: [

From e1b082471bc1e031273719c7216d4052f175f369 Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Fri, 11 Feb 2022 12:19:02 +0100
Subject: [PATCH 11/14] change warn to membrane logger, update deps

---
 config/config.exs |  3 +++
 config/dev.exs    |  3 +++
 config/prod.exs   |  3 +++
 config/test.exs   |  3 +++
 lib/serializer.ex |  5 +++--
 mix.exs           |  6 +++---
 mix.lock          | 16 ++++++++--------
 7 files changed, 26 insertions(+), 13 deletions(-)
 create mode 100644 config/config.exs
 create mode 100644 config/dev.exs
 create mode 100644 config/prod.exs
 create mode 100644 config/test.exs

diff --git a/config/config.exs b/config/config.exs
new file mode 100644
index 0000000..de0f2cb
--- /dev/null
+++ b/config/config.exs
@@ -0,0 +1,3 @@
+import Config
+
+import_config("#{config_env()}.exs")
diff --git a/config/dev.exs b/config/dev.exs
new file mode 100644
index 0000000..a55f6ea
--- /dev/null
+++ b/config/dev.exs
@@ -0,0 +1,3 @@
+import Config
+
+config :logger, level: :debug
diff --git a/config/prod.exs b/config/prod.exs
new file mode 100644
index 0000000..3da7d10
--- /dev/null
+++ b/config/prod.exs
@@ -0,0 +1,3 @@
+import Config
+
+config :logger, level: :warn
diff --git a/config/test.exs b/config/test.exs
new file mode 100644
index 0000000..a55f6ea
--- /dev/null
+++ b/config/test.exs
@@ -0,0 +1,3 @@
+import Config
+
+config :logger, level: :debug
diff --git a/lib/serializer.ex b/lib/serializer.ex
index f4f81cd..b9ca8fc 100644
--- a/lib/serializer.ex
+++ b/lib/serializer.ex
@@ -4,12 +4,13 @@ defmodule Membrane.Element.IVF.Serializer do
   """
 
   use Membrane.Filter
-  use Membrane.Log
 
   alias Membrane.Element.IVF
   alias Membrane.{Buffer, RemoteStream}
   alias Membrane.{VP9, VP8}
 
+  require Membrane.Logger
+
   def_options width: [spec: [integer], default: 0, description: "width of frame"],
               height: [spec: [integer], default: 0, description: "height of frame"],
               scale: [spec: [integer], default: 1, description: "scale"],
@@ -77,7 +78,7 @@ defmodule Membrane.Element.IVF.Serializer do
       if state.first_frame do
         if state.width == 0 or state.height == 0,
           do:
-            IO.warn(
+            Membrane.Logger.warn(
               "Serializing stream to IVF without width or height. These parameters can be passed via options or caps"
             )
 
diff --git a/mix.exs b/mix.exs
index 2147d0b..20cd843 100644
--- a/mix.exs
+++ b/mix.exs
@@ -8,7 +8,7 @@ defmodule Membrane.IVF.Plugin.MixProject do
     [
       app: :membrane_ivf_plugin,
       version: @version,
-      elixir: "~> 1.12",
+      elixir: "~> 1.13",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
       deps: deps(),
@@ -27,7 +27,7 @@ defmodule Membrane.IVF.Plugin.MixProject do
 
   def application do
     [
-      extra_applications: []
+      extra_applications: [:logger]
     ]
   end
 
@@ -36,7 +36,7 @@ defmodule Membrane.IVF.Plugin.MixProject do
 
   defp deps do
     [
-      {:membrane_core, "~> 0.8.0"},
+      {:membrane_core, "~> 0.8.2"},
       {:membrane_vp8_format,
        github: "membraneframework/membrane_vp8_format", branch: "add-stream-params"},
       {:membrane_vp9_format,
diff --git a/mix.lock b/mix.lock
index a42a90d..9d6e00f 100644
--- a/mix.lock
+++ b/mix.lock
@@ -2,22 +2,22 @@
   "bunch": {:hex, :bunch, "1.3.0", "51b4423088b7fb9e21eae6d6bc5e5d219d955ea5556fbd6130bfb6213df4be32", [:mix], [], "hexpm", "9ad233a2bacc0dae8aa6553a9b9057f27446443b1c5903c3479b6f9f3820ce2d"},
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"},
   "coerce": {:hex, :coerce, "1.0.1", "211c27386315dc2894ac11bc1f413a0e38505d808153367bd5c6e75a4003d096", [:mix], [], "hexpm", "b44a691700f7a1a15b4b7e2ff1fa30bebd669929ac8aa43cffe9e2f8bf051cf1"},
-  "credo": {:hex, :credo, "1.6.1", "7dc76dcdb764a4316c1596804c48eada9fff44bd4b733a91ccbf0c0f368be61e", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2.8", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "698607fb5993720c7e93d2d8e76f2175bba024de964e160e2f7151ef3ab82ac5"},
+  "credo": {:hex, :credo, "1.6.3", "0a9f8925dbc8f940031b789f4623fc9a0eea99d3eed600fe831e403eb96c6a83", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2.8", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "1167cde00e6661d740fc54da2ee268e35d3982f027399b64d3e2e83af57a1180"},
   "dialyxir": {:hex, :dialyxir, "1.1.0", "c5aab0d6e71e5522e77beff7ba9e08f8e02bad90dfbeffae60eaf0cb47e29488", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "07ea8e49c45f15264ebe6d5b93799d4dd56a44036cf42d0ad9c960bc266c0b9a"},
-  "earmark_parser": {:hex, :earmark_parser, "1.4.18", "e1b2be73eb08a49fb032a0208bf647380682374a725dfb5b9e510def8397f6f2", [:mix], [], "hexpm", "114a0e85ec3cf9e04b811009e73c206394ffecfcc313e0b346de0d557774ee97"},
+  "earmark_parser": {:hex, :earmark_parser, "1.4.19", "de0d033d5ff9fc396a24eadc2fcf2afa3d120841eb3f1004d138cbf9273210e8", [:mix], [], "hexpm", "527ab6630b5c75c3a3960b75844c314ec305c76d9899bb30f71cb85952a9dc45"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
-  "ex_doc": {:hex, :ex_doc, "0.26.0", "1922164bac0b18b02f84d6f69cab1b93bc3e870e2ad18d5dacb50a9e06b542a3", [:mix], [{:earmark_parser, "~> 1.4.0", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "2775d66e494a9a48355db7867478ffd997864c61c65a47d31c4949459281c78d"},
+  "ex_doc": {:hex, :ex_doc, "0.28.0", "7eaf526dd8c80ae8c04d52ac8801594426ae322b52a6156cd038f30bafa8226f", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "e55cdadf69a5d1f4cfd8477122ebac5e1fadd433a8c1022dafc5025e48db0131"},
   "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
-  "jason": {:hex, :jason, "1.2.2", "ba43e3f2709fd1aa1dce90aaabfd039d000469c05c56f0b8e31978e03fa39052", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "18a228f5f0058ee183f29f9eae0805c6e59d61c3b006760668d8d18ff0d12179"},
+  "jason": {:hex, :jason, "1.3.0", "fa6b82a934feb176263ad2df0dbd91bf633d4a46ebfdffea0c8ae82953714946", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "53fc1f51255390e0ec7e50f9cb41e751c260d065dcba2bf0d08dc51a4002c2ac"},
   "makeup": {:hex, :makeup, "1.0.5", "d5a830bc42c9800ce07dd97fa94669dfb93d3bf5fcf6ea7a0c67b2e0e4a7f26c", [:mix], [{:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cfa158c02d3f5c0c665d0af11512fed3fba0144cf1aadee0f2ce17747fba2ca9"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.15.2", "dc72dfe17eb240552857465cc00cce390960d9a0c055c4ccd38b70629227e97c", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.1", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "fd23ae48d09b32eff49d4ced2b43c9f086d402ee4fd4fcb2d7fad97fa8823e75"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
-  "membrane_core": {:hex, :membrane_core, "0.8.1", "33df0e4c76c05a2be57042893b05516886462baefdf95b7299e4d2f5db32dea3", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 2.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "5574db35f08de1e95648f9c3acce38c5f318216c5a5ae5e3f253f7edad8fdc1b"},
+  "membrane_core": {:hex, :membrane_core, "0.8.2", "fe9a1ccd8abb10813a8f30bf00133c229fabdf6512594cf8019416714a4de825", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 2.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "e94f00cbba5b25fe640d84dbf65e84e22bba212b9df379900553bf245f55b7d3"},
   "membrane_file_plugin": {:hex, :membrane_file_plugin, "0.7.0", "200e416e50e1545473fcfc9020253a797bf884f7d238227466e67266e7e71e5e", [:mix], [{:membrane_core, "~> 0.8.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:mockery, "~> 2.2", [hex: :mockery, repo: "hexpm", optional: false]}], "hexpm", "9efe63c780a021552293f3d7ea8b62c93675a8cb9aca34f71e6e979df490cf21"},
-  "membrane_vp8_format": {:git, "https://github.com/membraneframework/membrane_vp8_format.git", "b3a2e03181db7d7f8afd74d2a675b6f7be9fdee0", [branch: "add-stream-params"]},
-  "membrane_vp9_format": {:git, "https://github.com/membraneframework/membrane_vp9_format.git", "e1931a21c3f081e97055fa90e0c1822c8a134e13", [branch: "add-stream-params"]},
+  "membrane_vp8_format": {:git, "https://github.com/membraneframework/membrane_vp8_format.git", "5a954c6023606731a041934b15cfc26feab6469b", [branch: "add-stream-params"]},
+  "membrane_vp9_format": {:git, "https://github.com/membraneframework/membrane_vp9_format.git", "af223b0f32ad67f367d32259f69af904736a9e6f", [branch: "add-stream-params"]},
   "mockery": {:hex, :mockery, "2.3.1", "a02fd60b10ac9ed37a7a2ecf6786c1f1dd5c75d2b079a60594b089fba32dc087", [:mix], [], "hexpm", "1d0971d88ebf084e962da3f2cfee16f0ea8e04ff73a7710428500d4500b947fa"},
-  "nimble_parsec": {:hex, :nimble_parsec, "1.2.0", "b44d75e2a6542dcb6acf5d71c32c74ca88960421b6874777f79153bbbbd7dccc", [:mix], [], "hexpm", "52b2871a7515a5ac49b00f214e4165a40724cf99798d8e4a65e4fd64ebd002c1"},
+  "nimble_parsec": {:hex, :nimble_parsec, "1.2.1", "264fc6864936b59fedb3ceb89998c64e9bb91945faf1eb115d349b96913cc2ef", [:mix], [], "hexpm", "23c31d0ec38c97bf9adde35bc91bc8e1181ea5202881f48a192f4aa2d2cf4d59"},
   "numbers": {:hex, :numbers, "5.2.4", "f123d5bb7f6acc366f8f445e10a32bd403c8469bdbce8ce049e1f0972b607080", [:mix], [{:coerce, "~> 1.0", [hex: :coerce, repo: "hexpm", optional: false]}, {:decimal, "~> 1.9 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "eeccf5c61d5f4922198395bf87a465b6f980b8b862dd22d28198c5e6fab38582"},
   "qex": {:hex, :qex, "0.5.1", "0d82c0f008551d24fffb99d97f8299afcb8ea9cf99582b770bd004ed5af63fd6", [:mix], [], "hexpm", "935a39fdaf2445834b95951456559e9dc2063d0a055742c558a99987b38d6bab"},
   "ratio": {:hex, :ratio, "2.4.2", "c8518f3536d49b1b00d88dd20d49f8b11abb7819638093314a6348139f14f9f9", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}, {:numbers, "~> 5.2.0", [hex: :numbers, repo: "hexpm", optional: false]}], "hexpm", "441ef6f73172a3503de65ccf1769030997b0d533b1039422f1e5e0e0b4cbf89e"},

From fad3b140972b1d314b1a0a2cd7d2647e3f41154b Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Fri, 11 Feb 2022 12:20:31 +0100
Subject: [PATCH 12/14] require elixir 1.12

---
 mix.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index 20cd843..5823832 100644
--- a/mix.exs
+++ b/mix.exs
@@ -8,7 +8,7 @@ defmodule Membrane.IVF.Plugin.MixProject do
     [
       app: :membrane_ivf_plugin,
       version: @version,
-      elixir: "~> 1.13",
+      elixir: "~> 1.12",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
       deps: deps(),

From bd965b4d6c8b8569dd903b84d8649237d79b4cff Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Fri, 11 Feb 2022 14:43:33 +0100
Subject: [PATCH 13/14] change pts to dts

---
 CHANGELOG.md               |   2 +-
 lib/deserializer.ex        |   2 +-
 lib/serializer.ex          |   2 +-
 test/fixtures/capture.dump | Bin 198287 -> 198287 bytes
 test/serializer_test.exs   |   4 ++--
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75751a6..d8e977f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 ## 0.4.0
 ### Release notes:
-  * Use new buffer pts field instead of metadata.timestamp #8
+  * Use new buffer dts field instead of metadata.timestamp
   * Allow vp8/vp9 input caps #9
 ## 0.3.0
 ### Release notes:
diff --git a/lib/deserializer.ex b/lib/deserializer.ex
index e49f135..e6b996a 100644
--- a/lib/deserializer.ex
+++ b/lib/deserializer.ex
@@ -93,7 +93,7 @@ defmodule Membrane.Element.IVF.Deserializer do
            Headers.parse_ivf_frame_header(payload),
          <<frame::binary-size(size_of_frame), rest::binary()>> <- rest do
       timestamp = timestamp * (timebase * Time.second())
-      {:ok, %Buffer{pts: timestamp, payload: frame}, rest}
+      {:ok, %Buffer{dts: timestamp, payload: frame}, rest}
     else
       _error -> :error_too_short
     end
diff --git a/lib/serializer.ex b/lib/serializer.ex
index b9ca8fc..327f204 100644
--- a/lib/serializer.ex
+++ b/lib/serializer.ex
@@ -68,7 +68,7 @@ defmodule Membrane.Element.IVF.Serializer do
 
   @impl true
   def handle_process(:input, buffer, ctx, state) do
-    %Buffer{payload: frame, pts: timestamp} = buffer
+    %Buffer{payload: frame, dts: timestamp} = buffer
 
     ivf_frame =
       IVF.Headers.create_ivf_frame_header(byte_size(frame), timestamp, state.timebase) <>
diff --git a/test/fixtures/capture.dump b/test/fixtures/capture.dump
index 3315975fc5000c33ba3cd3ef9d49a47bbda3c337..04f5ad3815503c104f2ed38f1f3c071c6a4b701a 100644
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diff --git a/test/serializer_test.exs b/test/serializer_test.exs
index caa2254..eba32f7 100644
--- a/test/serializer_test.exs
+++ b/test/serializer_test.exs
@@ -55,8 +55,8 @@ defmodule Membrane.Element.IVF.SerializerTest do
   correctly calculates timestamp in frame header.
   """
   test "appends headers correctly" do
-    buffer_1 = %Buffer{payload: @frame, pts: 0}
-    buffer_2 = %Buffer{payload: @frame, pts: 100_000_000 <|> 3}
+    buffer_1 = %Buffer{payload: @frame, dts: 0}
+    buffer_2 = %Buffer{payload: @frame, dts: 100_000_000 <|> 3}
 
     {:ok, pipeline} =
       %Testing.Pipeline.Options{

From 3041ffdce34d261e3cb41e0f3bd69f42995b67fb Mon Sep 17 00:00:00 2001
From: Maks Stachowiak <maks.stachowiak@swmansion.com>
Date: Wed, 9 Mar 2022 10:57:49 +0100
Subject: [PATCH 14/14] 0.9

---
 mix.exs  | 2 +-
 mix.lock | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mix.exs b/mix.exs
index 5823832..1571a5a 100644
--- a/mix.exs
+++ b/mix.exs
@@ -36,7 +36,7 @@ defmodule Membrane.IVF.Plugin.MixProject do
 
   defp deps do
     [
-      {:membrane_core, "~> 0.8.2"},
+      {:membrane_core, "~> 0.9.0", override: true},
       {:membrane_vp8_format,
        github: "membraneframework/membrane_vp8_format", branch: "add-stream-params"},
       {:membrane_vp9_format,
diff --git a/mix.lock b/mix.lock
index 9d6e00f..e1dfe94 100644
--- a/mix.lock
+++ b/mix.lock
@@ -12,7 +12,7 @@
   "makeup": {:hex, :makeup, "1.0.5", "d5a830bc42c9800ce07dd97fa94669dfb93d3bf5fcf6ea7a0c67b2e0e4a7f26c", [:mix], [{:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cfa158c02d3f5c0c665d0af11512fed3fba0144cf1aadee0f2ce17747fba2ca9"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.15.2", "dc72dfe17eb240552857465cc00cce390960d9a0c055c4ccd38b70629227e97c", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.1", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "fd23ae48d09b32eff49d4ced2b43c9f086d402ee4fd4fcb2d7fad97fa8823e75"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
-  "membrane_core": {:hex, :membrane_core, "0.8.2", "fe9a1ccd8abb10813a8f30bf00133c229fabdf6512594cf8019416714a4de825", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 2.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "e94f00cbba5b25fe640d84dbf65e84e22bba212b9df379900553bf245f55b7d3"},
+  "membrane_core": {:hex, :membrane_core, "0.9.0", "91a79636c6b2fcc6ae2e611670cdca33a0b38ff4dabe8fb7c1d56cba426db787", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 2.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ab252e7aa944d23fbb22ce0e8bc75b088cfe3ed1c2c7ba203b1cc2fd794a85ed"},
   "membrane_file_plugin": {:hex, :membrane_file_plugin, "0.7.0", "200e416e50e1545473fcfc9020253a797bf884f7d238227466e67266e7e71e5e", [:mix], [{:membrane_core, "~> 0.8.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:mockery, "~> 2.2", [hex: :mockery, repo: "hexpm", optional: false]}], "hexpm", "9efe63c780a021552293f3d7ea8b62c93675a8cb9aca34f71e6e979df490cf21"},
   "membrane_vp8_format": {:git, "https://github.com/membraneframework/membrane_vp8_format.git", "5a954c6023606731a041934b15cfc26feab6469b", [branch: "add-stream-params"]},
   "membrane_vp9_format": {:git, "https://github.com/membraneframework/membrane_vp9_format.git", "af223b0f32ad67f367d32259f69af904736a9e6f", [branch: "add-stream-params"]},