From 22e7ae81145bde1d379ec0983f4d9146c5204cb7 Mon Sep 17 00:00:00 2001
From: Billal Ghilas <84322223+gBillal@users.noreply.github.com>
Date: Mon, 29 Jul 2024 10:45:07 +0100
Subject: [PATCH] store ctts table (#115)

* store ctts table on muxing

* revert add_dts_offset option

* fix typo

* run mix format

* upgrade deps
---
 lib/membrane_mp4/demuxer/isom/samples_info.ex |   2 +-
 .../movie_box/sample_table_box.ex             |  28 +++++++++++
 lib/membrane_mp4/track/sample_table.ex        |  19 ++++++++
 mix.lock                                      |  44 +++++++++---------
 .../fixtures/demuxed_and_depayloaded_video.ms | Bin 113005 -> 113053 bytes
 test/fixtures/isom/ref_two_tracks.mp4         | Bin 134252 -> 134356 bytes
 .../isom/ref_two_tracks_fast_start.mp4        | Bin 134252 -> 134356 bytes
 test/fixtures/isom/ref_video.mp4              | Bin 36333 -> 36437 bytes
 test/fixtures/isom/ref_video_fast_start.mp4   | Bin 36333 -> 36437 bytes
 test/fixtures/isom/ref_video_hevc.mp4         | Bin 25556 -> 25700 bytes
 .../muxer/isom/integration_test.exs           |  27 +++++++++++
 11 files changed, 97 insertions(+), 23 deletions(-)

diff --git a/lib/membrane_mp4/demuxer/isom/samples_info.ex b/lib/membrane_mp4/demuxer/isom/samples_info.ex
index aa79122..3abcb71 100644
--- a/lib/membrane_mp4/demuxer/isom/samples_info.ex
+++ b/lib/membrane_mp4/demuxer/isom/samples_info.ex
@@ -106,7 +106,7 @@ defmodule Membrane.MP4.Demuxer.ISOM.SamplesInfo do
     {dts, pts} =
       case samples_info.last_dts[track_id] do
         nil ->
-          {0, 0}
+          {0, scalify(sample_composition_offset, timescale)}
 
         last_dts ->
           {last_dts + scalify(delta, timescale),
diff --git a/lib/membrane_mp4/movie_box/sample_table_box.ex b/lib/membrane_mp4/movie_box/sample_table_box.ex
index 66bf91e..224e7d8 100644
--- a/lib/membrane_mp4/movie_box/sample_table_box.ex
+++ b/lib/membrane_mp4/movie_box/sample_table_box.ex
@@ -35,6 +35,7 @@ defmodule Membrane.MP4.MovieBox.SampleTableBox do
               }
             }
           ] ++
+            maybe_sample_composition_offsets(table) ++
             maybe_sample_sync ++
             [
               stsc: %{
@@ -197,6 +198,33 @@ defmodule Membrane.MP4.MovieBox.SampleTableBox do
         %{sample_count: count, sample_delta: Helper.timescalify(delta, timescale)}
       end)
 
+  defp maybe_sample_composition_offsets(%{composition_offsets: []}), do: []
+
+  defp maybe_sample_composition_offsets(%{composition_offsets: [%{sample_composition_offset: 0}]}),
+    do: []
+
+  defp maybe_sample_composition_offsets(%{
+         timescale: timescale,
+         composition_offsets: composition_offsets
+       }) do
+    composition_offsets
+    |> Enum.map(fn %{sample_count: count, sample_composition_offset: offset} ->
+      %{sample_count: count, sample_composition_offset: Helper.timescalify(offset, timescale)}
+    end)
+    |> then(
+      &[
+        ctts: %{
+          fields: %{
+            version: 0,
+            flags: 0,
+            entry_count: length(&1),
+            entry_list: &1
+          }
+        }
+      ]
+    )
+  end
+
   defp maybe_sample_sync(%{sync_samples: []}), do: []
 
   defp maybe_sample_sync(%{sync_samples: sync_samples}) do
diff --git a/lib/membrane_mp4/track/sample_table.ex b/lib/membrane_mp4/track/sample_table.ex
index fa262be..271a545 100644
--- a/lib/membrane_mp4/track/sample_table.ex
+++ b/lib/membrane_mp4/track/sample_table.ex
@@ -63,6 +63,7 @@ defmodule Membrane.MP4.Track.SampleTable do
     |> maybe_store_first_dts(buffer)
     |> do_store_sample(buffer)
     |> update_decoding_deltas(buffer)
+    |> update_composition_offsets(buffer)
     |> maybe_store_sync_sample(buffer)
     |> store_last_dts(buffer)
   end
@@ -100,6 +101,7 @@ defmodule Membrane.MP4.Track.SampleTable do
       :sync_samples,
       :chunk_offsets,
       :decoding_deltas,
+      :composition_offsets,
       :samples_per_chunk
     ]
 
@@ -148,6 +150,23 @@ defmodule Membrane.MP4.Track.SampleTable do
     end)
   end
 
+  defp update_composition_offsets(sample_table, %Buffer{dts: dts, pts: pts}) do
+    Map.update!(sample_table, :composition_offsets, fn previous_offsets ->
+      new_offset = pts - dts
+
+      case previous_offsets do
+        [] ->
+          [%{sample_count: 1, sample_composition_offset: new_offset}]
+
+        [%{sample_count: count, sample_composition_offset: ^new_offset} | rest] ->
+          [%{sample_count: count + 1, sample_composition_offset: new_offset} | rest]
+
+        _different_delta_or_empty ->
+          [%{sample_count: 1, sample_composition_offset: new_offset} | previous_offsets]
+      end
+    end)
+  end
+
   defp maybe_store_sync_sample(sample_table, %Buffer{metadata: %{h264: h264}})
        when h264.key_frame? do
     Map.update!(sample_table, :sync_samples, &[sample_table.sample_count | &1])
diff --git a/mix.lock b/mix.lock
index 9d2cd94..a24c61b 100644
--- a/mix.lock
+++ b/mix.lock
@@ -2,54 +2,54 @@
   "bimap": {:hex, :bimap, "1.3.0", "3ea4832e58dc83a9b5b407c6731e7bae87458aa618e6d11d8e12114a17afa4b3", [:mix], [], "hexpm", "bf5a2b078528465aa705f405a5c638becd63e41d280ada41e0f77e6d255a10b4"},
   "bunch": {:hex, :bunch, "1.6.1", "5393d827a64d5f846092703441ea50e65bc09f37fd8e320878f13e63d410aec7", [:mix], [], "hexpm", "286cc3add551628b30605efbe2fca4e38cc1bea89bcd0a1a7226920b3364fe4a"},
   "bunch_native": {:hex, :bunch_native, "0.5.0", "8ac1536789a597599c10b652e0b526d8833348c19e4739a0759a2bedfd924e63", [:mix], [{:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "24190c760e32b23b36edeb2dc4852515c7c5b3b8675b1a864e0715bdd1c8f80d"},
-  "bundlex": {:hex, :bundlex, "1.4.6", "6d93c4ca3bfb2282445e1e76ea263cedae49ba8524bf4cce94eb8124421c81fc", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:elixir_uuid, "~> 1.2", [hex: :elixir_uuid, repo: "hexpm", optional: false]}, {:qex, "~> 0.5", [hex: :qex, repo: "hexpm", optional: false]}, {:req, "~> 0.4.0", [hex: :req, repo: "hexpm", optional: false]}, {:zarex, "~> 1.0", [hex: :zarex, repo: "hexpm", optional: false]}], "hexpm", "549115f64f55e29b32f566ae054caa5557b334aceab279e0b820055ad0bfc8b6"},
+  "bundlex": {:hex, :bundlex, "1.5.3", "35d01e5bc0679510dd9a327936ffb518f63f47175c26a35e708cc29eaec0890b", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:elixir_uuid, "~> 1.2", [hex: :elixir_uuid, repo: "hexpm", optional: false]}, {:qex, "~> 0.5", [hex: :qex, repo: "hexpm", optional: false]}, {:req, ">= 0.4.0", [hex: :req, repo: "hexpm", optional: false]}, {:zarex, "~> 1.0", [hex: :zarex, repo: "hexpm", optional: false]}], "hexpm", "debd0eac151b404f6216fc60222761dff049bf26f7d24d066c365317650cd118"},
   "bunt": {:hex, :bunt, "1.0.0", "081c2c665f086849e6d57900292b3a161727ab40431219529f13c4ddcf3e7a44", [:mix], [], "hexpm", "dc5f86aa08a5f6fa6b8096f0735c4e76d54ae5c9fa2c143e5a1fc7c1cd9bb6b5"},
-  "castore": {:hex, :castore, "1.0.5", "9eeebb394cc9a0f3ae56b813459f990abb0a3dedee1be6b27fdb50301930502f", [:mix], [], "hexpm", "8d7c597c3e4a64c395980882d4bca3cebb8d74197c590dc272cfd3b6a6310578"},
+  "castore": {:hex, :castore, "1.0.8", "dedcf20ea746694647f883590b82d9e96014057aff1d44d03ec90f36a5c0dc6e", [:mix], [], "hexpm", "0b2b66d2ee742cb1d9cb8c8be3b43c3a70ee8651f37b75a8b982e036752983f1"},
   "coerce": {:hex, :coerce, "1.0.1", "211c27386315dc2894ac11bc1f413a0e38505d808153367bd5c6e75a4003d096", [:mix], [], "hexpm", "b44a691700f7a1a15b4b7e2ff1fa30bebd669929ac8aa43cffe9e2f8bf051cf1"},
   "credo": {:hex, :credo, "1.7.7", "771445037228f763f9b2afd612b6aa2fd8e28432a95dbbc60d8e03ce71ba4446", [:mix], [{:bunt, "~> 0.2.1 or ~> 1.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "8bc87496c9aaacdc3f90f01b7b0582467b69b4bd2441fe8aae3109d843cc2f2e"},
   "dialyxir": {:hex, :dialyxir, "1.4.3", "edd0124f358f0b9e95bfe53a9fcf806d615d8f838e2202a9f430d59566b6b53b", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "bf2cfb75cd5c5006bec30141b131663299c661a864ec7fbbc72dfa557487a986"},
-  "earmark_parser": {:hex, :earmark_parser, "1.4.39", "424642f8335b05bb9eb611aa1564c148a8ee35c9c8a8bba6e129d51a3e3c6769", [:mix], [], "hexpm", "06553a88d1f1846da9ef066b87b57c6f605552cfbe40d20bd8d59cc6bde41944"},
+  "earmark_parser": {:hex, :earmark_parser, "1.4.41", "ab34711c9dc6212dda44fcd20ecb87ac3f3fce6f0ca2f28d4a00e4154f8cd599", [:mix], [], "hexpm", "a81a04c7e34b6617c2792e291b5a2e57ab316365c2644ddc553bb9ed863ebefa"},
   "elixir_uuid": {:hex, :elixir_uuid, "1.2.1", "dce506597acb7e6b0daeaff52ff6a9043f5919a4c3315abb4143f0b00378c097", [:mix], [], "hexpm", "f7eba2ea6c3555cea09706492716b0d87397b88946e6380898c2889d68585752"},
-  "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
-  "ex_doc": {:hex, :ex_doc, "0.31.1", "8a2355ac42b1cc7b2379da9e40243f2670143721dd50748bf6c3b1184dae2089", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.1", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "3178c3a407c557d8343479e1ff117a96fd31bafe52a039079593fb0524ef61b0"},
+  "erlex": {:hex, :erlex, "0.2.7", "810e8725f96ab74d17aac676e748627a07bc87eb950d2b83acd29dc047a30595", [:mix], [], "hexpm", "3ed95f79d1a844c3f6bf0cea61e0d5612a42ce56da9c03f01df538685365efb0"},
+  "ex_doc": {:hex, :ex_doc, "0.34.2", "13eedf3844ccdce25cfd837b99bea9ad92c4e511233199440488d217c92571e8", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "5ce5f16b41208a50106afed3de6a2ed34f4acfd65715b82a0b84b49d995f95c1"},
   "file_system": {:hex, :file_system, "1.0.0", "b689cc7dcee665f774de94b5a832e578bd7963c8e637ef940cd44327db7de2cd", [:mix], [], "hexpm", "6752092d66aec5a10e662aefeed8ddb9531d79db0bc145bb8c40325ca1d8536d"},
   "finch": {:hex, :finch, "0.18.0", "944ac7d34d0bd2ac8998f79f7a811b21d87d911e77a786bc5810adb75632ada4", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.3", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2.6 or ~> 1.0", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "69f5045b042e531e53edc2574f15e25e735b522c37e2ddb766e15b979e03aa65"},
   "heap": {:hex, :heap, "2.0.2", "d98cb178286cfeb5edbcf17785e2d20af73ca57b5a2cf4af584118afbcf917eb", [:mix], [], "hexpm", "ba9ea2fe99eb4bcbd9a8a28eaf71cbcac449ca1d8e71731596aace9028c9d429"},
-  "hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},
+  "hpax": {:hex, :hpax, "1.0.0", "28dcf54509fe2152a3d040e4e3df5b265dcb6cb532029ecbacf4ce52caea3fd2", [:mix], [], "hexpm", "7f1314731d711e2ca5fdc7fd361296593fc2542570b3105595bb0bc6d0fad601"},
   "jason": {:hex, :jason, "1.4.3", "d3f984eeb96fe53b85d20e0b049f03e57d075b5acda3ac8d465c969a2536c17b", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "9a90e868927f7c777689baa16d86f4d0e086d968db5c05d917ccff6d443e58a3"},
   "logger_backends": {:hex, :logger_backends, "1.0.0", "09c4fad6202e08cb0fbd37f328282f16539aca380f512523ce9472b28edc6bdf", [:mix], [], "hexpm", "1faceb3e7ec3ef66a8f5746c5afd020e63996df6fd4eb8cdb789e5665ae6c9ce"},
-  "makeup": {:hex, :makeup, "1.1.1", "fa0bc768698053b2b3869fa8a62616501ff9d11a562f3ce39580d60860c3a55e", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "5dc62fbdd0de44de194898b6710692490be74baa02d9d108bc29f007783b0b48"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.16.1", "cc9e3ca312f1cfeccc572b37a09980287e243648108384b97ff2b76e505c3555", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "e127a341ad1b209bd80f7bd1620a15693a9908ed780c3b763bccf7d200c767c6"},
-  "makeup_erlang": {:hex, :makeup_erlang, "0.1.4", "29563475afa9b8a2add1b7a9c8fb68d06ca7737648f28398e04461f008b69521", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f4ed47ecda66de70dd817698a703f8816daa91272e7e45812469498614ae8b29"},
+  "makeup": {:hex, :makeup, "1.1.2", "9ba8837913bdf757787e71c1581c21f9d2455f4dd04cfca785c70bbfff1a76a3", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cce1566b81fbcbd21eca8ffe808f33b221f9eee2cbc7a1706fc3da9ff18e6cac"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.16.2", "627e84b8e8bf22e60a2579dad15067c755531fea049ae26ef1020cad58fe9578", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "41193978704763f6bbe6cc2758b84909e62984c7752b3784bd3c218bb341706b"},
+  "makeup_erlang": {:hex, :makeup_erlang, "1.0.0", "6f0eff9c9c489f26b69b61440bf1b238d95badae49adac77973cbacae87e3c2e", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "ea7a9307de9d1548d2a72d299058d1fd2339e3d398560a0e46c27dab4891e4d2"},
   "membrane_aac_format": {:hex, :membrane_aac_format, "0.8.0", "515631eabd6e584e0e9af2cea80471fee6246484dbbefc4726c1d93ece8e0838", [:mix], [{:bimap, "~> 1.1", [hex: :bimap, repo: "hexpm", optional: false]}], "hexpm", "a30176a94491033ed32be45e51d509fc70a5ee6e751f12fd6c0d60bd637013f6"},
   "membrane_aac_plugin": {:hex, :membrane_aac_plugin, "0.18.1", "30433bffd4d5d773f79448dd9afd55d77338721688f09a89b20d742a68cc2c3d", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:membrane_aac_format, "~> 0.8.0", [hex: :membrane_aac_format, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}], "hexpm", "8fd048c47d5d2949eb557e19f43f62d534d3af5096187f1a1a3a1694d14b772c"},
-  "membrane_cmaf_format": {:hex, :membrane_cmaf_format, "0.7.0", "573bfff6acf2371c5046b9174569f6316f4205e3d6e13e814bf7e613e5653a54", [:mix], [], "hexpm", "4ac6a24a33f61347a2714c982a5f84aa6207641f4de2ad5afde68a8b800da8de"},
+  "membrane_cmaf_format": {:hex, :membrane_cmaf_format, "0.7.1", "9ea858faefdcb181cdfa8001be827c35c5f854e9809ad57d7062cff1f0f703fd", [:mix], [], "hexpm", "3c7b4ed2a986e27f6f336d2f19e9442cb31d93b3142fc024c019572faca54a73"},
   "membrane_common_c": {:hex, :membrane_common_c, "0.16.0", "caf3f29d2f5a1d32d8c2c122866110775866db2726e4272be58e66dfdf4bce40", [:mix], [{:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:shmex, "~> 0.5.0", [hex: :shmex, repo: "hexpm", optional: false]}, {:unifex, "~> 1.0", [hex: :unifex, repo: "hexpm", optional: false]}], "hexpm", "a3c7e91de1ce1f8b23b9823188a5d13654d317235ea0ca781c05353ed3be9b1c"},
-  "membrane_core": {:hex, :membrane_core, "1.0.1", "08aa546c0d131c66f8b906b3dfb2b8f2749b56859f6fc52bd3ac846b944b3baa", [:mix], [{:bunch, "~> 1.6", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 3.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "a35ed68561bdf0a2dbb2f994333be78cf4e1c4d734e4cd927d77d92049bb1273"},
+  "membrane_core": {:hex, :membrane_core, "1.1.0", "c3bbaa5af7c26a7c3748e573efe343c2104801e3463b9e491a607e82860334a4", [:mix], [{:bunch, "~> 1.6", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.3", [hex: :qex, repo: "hexpm", optional: false]}, {:ratio, "~> 3.0 or ~> 4.0", [hex: :ratio, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "b3209d7f7e86d736cb7caffbba16b075c571cebb9439ab939ed6119c50fb59a5"},
   "membrane_fake_plugin": {:hex, :membrane_fake_plugin, "0.11.0", "3a2d26f15ad4940a4d44cee3354dff38fa9a39963e9b2dcb49802e150ff9a9dc", [:mix], [{:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}], "hexpm", "7c6b6a06eaa4e820d1e4836510ddb4bcb386c8918d0b37542a21caf6b87cbe72"},
-  "membrane_file_plugin": {:hex, :membrane_file_plugin, "0.17.0", "e855a848e84eaed537b41fd4436712038fc5518059eadc8609c83cd2d819653a", [:mix], [{:logger_backends, "~> 1.0", [hex: :logger_backends, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}], "hexpm", "9c3653ca9f13bb409b36257d6094798d4625c739ab7a4035c12308622eb16e0b"},
+  "membrane_file_plugin": {:hex, :membrane_file_plugin, "0.17.2", "650e134c2345d946f930082fac8bac9f5aba785a7817d38a9a9da41ffc56fa92", [:mix], [{:logger_backends, "~> 1.0", [hex: :logger_backends, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}], "hexpm", "df50c6040004cd7b901cf057bd7e99c875bbbd6ae574efc93b2c753c96f43b9d"},
   "membrane_h264_format": {:hex, :membrane_h264_format, "0.6.1", "44836cd9de0abe989b146df1e114507787efc0cf0da2368f17a10c47b4e0738c", [:mix], [], "hexpm", "4b79be56465a876d2eac2c3af99e115374bbdc03eb1dea4f696ee9a8033cd4b0"},
   "membrane_h265_format": {:hex, :membrane_h265_format, "0.2.0", "1903c072cf7b0980c4d0c117ab61a2cd33e88782b696290de29570a7fab34819", [:mix], [], "hexpm", "6df418bdf242c0d9f7dbf2e5aea4c2d182e34ac9ad5a8b8cef2610c290002e83"},
-  "membrane_h26x_plugin": {:hex, :membrane_h26x_plugin, "0.10.0", "0a7c6b9a7678e8c111b22b5417465ac31cf6e598cff6a53ab53a9c379bdfa1ef", [:mix], [{:bunch, "~> 1.4", [hex: :bunch, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_h264_format, "~> 0.6.0", [hex: :membrane_h264_format, repo: "hexpm", optional: false]}, {:membrane_h265_format, "~> 0.2.0", [hex: :membrane_h265_format, repo: "hexpm", optional: false]}], "hexpm", "e9cde8c8995ace9fc26355037cbcc780f1727a3f63d36c21b52232fd29d0ad40"},
+  "membrane_h26x_plugin": {:hex, :membrane_h26x_plugin, "0.10.2", "caf2790d8c107df35f8d456b45f4e09fb9c56ce6c7669a3a03f7d59972e6ed82", [:mix], [{:bunch, "~> 1.4", [hex: :bunch, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_h264_format, "~> 0.6.0", [hex: :membrane_h264_format, repo: "hexpm", optional: false]}, {:membrane_h265_format, "~> 0.2.0", [hex: :membrane_h265_format, repo: "hexpm", optional: false]}], "hexpm", "becf1ac4a589adecd850137ccd61a33058f686083a514a7e39fcd721bcf9fb2e"},
   "membrane_mp4_format": {:hex, :membrane_mp4_format, "0.8.0", "8c6e7d68829228117d333b4fbb030e7be829aab49dd8cb047fdc664db1812e6a", [:mix], [], "hexpm", "148dea678a1f82ccfd44dbde6f936d2f21255f496cb45a22cc6eec427f025522"},
   "membrane_opus_format": {:hex, :membrane_opus_format, "0.3.0", "3804d9916058b7cfa2baa0131a644d8186198d64f52d592ae09e0942513cb4c2", [:mix], [], "hexpm", "8fc89c97be50de23ded15f2050fe603dcce732566fe6fdd15a2de01cb6b81afe"},
   "membrane_opus_plugin": {:hex, :membrane_opus_plugin, "0.19.3", "af398a10c84d27e49b9a68ec78a54f123f2637441dd380857a3da4bb492eca5c", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.2", [hex: :bundlex, repo: "hexpm", optional: false]}, {:membrane_common_c, "~> 0.16.0", [hex: :membrane_common_c, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}, {:membrane_opus_format, "~> 0.3.0", [hex: :membrane_opus_format, repo: "hexpm", optional: false]}, {:membrane_precompiled_dependency_provider, "~> 0.1.0", [hex: :membrane_precompiled_dependency_provider, repo: "hexpm", optional: false]}, {:membrane_raw_audio_format, "~> 0.12.0", [hex: :membrane_raw_audio_format, repo: "hexpm", optional: false]}, {:unifex, "~> 1.0", [hex: :unifex, repo: "hexpm", optional: false]}], "hexpm", "172d5637233e4e7cb2c464be34ea85b487188887381ef5ff98d5c110fdf44f5b"},
-  "membrane_precompiled_dependency_provider": {:hex, :membrane_precompiled_dependency_provider, "0.1.1", "a0d5b7942f8be452c30744207f78284f6a0e0c84c968aba7d76e206fbf75bc5d", [:mix], [{:bundlex, "~> 1.4", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "87ad44752e2cf0fa3b31c5aac15b863343c2f6e0f0fd201f5ec4c0bcda8c6fa3"},
+  "membrane_precompiled_dependency_provider": {:hex, :membrane_precompiled_dependency_provider, "0.1.2", "8af73b7dc15ba55c9f5fbfc0453d4a8edfb007ade54b56c37d626be0d1189aba", [:mix], [{:bundlex, "~> 1.4", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "7fe3e07361510445a29bee95336adde667c4162b76b7f4c8af3aeb3415292023"},
   "membrane_raw_audio_format": {:hex, :membrane_raw_audio_format, "0.12.0", "b574cd90f69ce2a8b6201b0ccf0826ca28b0fbc8245b8078d9f11cef65f7d5d5", [:mix], [{:bimap, "~> 1.1", [hex: :bimap, repo: "hexpm", optional: false]}, {:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}], "hexpm", "6e6c98e3622a2b9df19eab50ba65d7eb45949b1ba306fa8423df6cdb12fd0b44"},
   "membrane_stream_plugin": {:hex, :membrane_stream_plugin, "0.4.0", "0c4ab72a4e13bf0faa0f1166fbaf68d2e34167dbec345aedb74ce1eb7497bdda", [:mix], [{:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}], "hexpm", "5a9a9c17783e18ad740e6ddfed364581bdb7ebdab8e61ba2c19a1830356f7eb8"},
   "membrane_timestamp_queue": {:hex, :membrane_timestamp_queue, "0.2.2", "1c831b2273d018a6548654aa9f7fa7c4b683f71d96ffe164934ef55f9d11f693", [:mix], [{:heap, "~> 2.0", [hex: :heap, repo: "hexpm", optional: false]}, {:membrane_core, "~> 1.0", [hex: :membrane_core, repo: "hexpm", optional: false]}], "hexpm", "7c830e760baaced0988421671cd2c83c7cda8d1bd2b61fd05332711675d1204f"},
-  "mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
-  "mint": {:hex, :mint, "1.5.2", "4805e059f96028948870d23d7783613b7e6b0e2fb4e98d720383852a760067fd", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "d77d9e9ce4eb35941907f1d3df38d8f750c357865353e21d335bdcdf6d892a02"},
-  "nimble_options": {:hex, :nimble_options, "1.1.0", "3b31a57ede9cb1502071fade751ab0c7b8dbe75a9a4c2b5bbb0943a690b63172", [:mix], [], "hexpm", "8bbbb3941af3ca9acc7835f5655ea062111c9c27bcac53e004460dfd19008a99"},
+  "mime": {:hex, :mime, "2.0.6", "8f18486773d9b15f95f4f4f1e39b710045fa1de891fada4516559967276e4dc2", [:mix], [], "hexpm", "c9945363a6b26d747389aac3643f8e0e09d30499a138ad64fe8fd1d13d9b153e"},
+  "mint": {:hex, :mint, "1.6.2", "af6d97a4051eee4f05b5500671d47c3a67dac7386045d87a904126fd4bbcea2e", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0 or ~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "5ee441dffc1892f1ae59127f74afe8fd82fda6587794278d924e4d90ea3d63f9"},
+  "nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},
   "nimble_ownership": {:hex, :nimble_ownership, "0.2.1", "3e44c72ebe8dd213db4e13aff4090aaa331d158e72ce1891d02e0ffb05a1eb2d", [:mix], [], "hexpm", "bf38d2ef4fb990521a4ecf112843063c1f58a5c602484af4c7977324042badee"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.4.0", "51f9b613ea62cfa97b25ccc2c1b4216e81df970acd8e16e8d1bdc58fef21370d", [:mix], [], "hexpm", "9c565862810fb383e9838c1dd2d7d2c437b3d13b267414ba6af33e50d2d1cf28"},
-  "nimble_pool": {:hex, :nimble_pool, "1.0.0", "5eb82705d138f4dd4423f69ceb19ac667b3b492ae570c9f5c900bb3d2f50a847", [:mix], [], "hexpm", "80be3b882d2d351882256087078e1b1952a28bf98d0a287be87e4a24a710b67a"},
+  "nimble_pool": {:hex, :nimble_pool, "1.1.0", "bf9c29fbdcba3564a8b800d1eeb5a3c58f36e1e11d7b7fb2e084a643f645f06b", [:mix], [], "hexpm", "af2e4e6b34197db81f7aad230c1118eac993acc0dae6bc83bac0126d4ae0813a"},
   "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, "3.0.2", "60a5976872a4dc3d873ecc57eed1738589e99d1094834b9c935b118231297cfb", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}, {:numbers, "~> 5.2.0", [hex: :numbers, repo: "hexpm", optional: false]}], "hexpm", "3a13ed5a30ad0bfd7e4a86bf86d93d2b5a06f5904417d38d3f3ea6406cdfc7bb"},
-  "req": {:hex, :req, "0.4.11", "cb19f87d5251e7de30cfc67d1899696b290711092207c6b2e8fc2294f237fcdc", [:mix], [{:aws_signature, "~> 0.3.2", [hex: :aws_signature, repo: "hexpm", optional: true]}, {:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.17", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 1.6 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:nimble_ownership, "~> 0.2.0", [hex: :nimble_ownership, repo: "hexpm", optional: false]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "bbf4f2393c649fa4146a3b8470e2a7e8c9b23e4100a16c75f5e7d1d3d33144f3"},
-  "shmex": {:hex, :shmex, "0.5.0", "7dc4fb1a8bd851085a652605d690bdd070628717864b442f53d3447326bcd3e8", [:mix], [{:bunch_native, "~> 0.5.0", [hex: :bunch_native, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "b67bb1e22734758397c84458dbb746519e28eac210423c267c7248e59fc97bdc"},
+  "ratio": {:hex, :ratio, "4.0.1", "3044166f2fc6890aa53d3aef0c336f84b2bebb889dc57d5f95cc540daa1912f8", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}, {:numbers, "~> 5.2.0", [hex: :numbers, repo: "hexpm", optional: false]}], "hexpm", "c60cbb3ccdff9ffa56e7d6d1654b5c70d9f90f4d753ab3a43a6bf40855b881ce"},
+  "req": {:hex, :req, "0.5.2", "70b4976e5fbefe84e5a57fd3eea49d4e9aa0ac015301275490eafeaec380f97f", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.17", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 2.0.6 or ~> 2.1", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "0c63539ab4c2d6ced6114d2684276cef18ac185ee00674ee9af4b1febba1f986"},
+  "shmex": {:hex, :shmex, "0.5.1", "81dd209093416bf6608e66882cb7e676089307448a1afd4fc906c1f7e5b94cf4", [:mix], [{:bunch_native, "~> 0.5.0", [hex: :bunch_native, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "c29f8286891252f64c4e1dac40b217d960f7d58def597c4e606ff8fbe71ceb80"},
   "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
-  "unifex": {:hex, :unifex, "1.1.1", "e8445ff780ea07c10657428051e4cf84359f2770e27d24e9d8636430662691ff", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.4", [hex: :bundlex, repo: "hexpm", optional: false]}, {:shmex, "~> 0.5.0", [hex: :shmex, repo: "hexpm", optional: false]}], "hexpm", "3e2867237a5582a40cb7c88d9ed0955071ebb1c4d525345513544adc0abd3b4b"},
+  "unifex": {:hex, :unifex, "1.2.0", "90d1ec5e6d788350e07e474f7bd8b0ee866d6606beb9ca4e20dbb26328712a84", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.4", [hex: :bundlex, repo: "hexpm", optional: false]}, {:shmex, "~> 0.5.0", [hex: :shmex, repo: "hexpm", optional: false]}], "hexpm", "7a8395aabc3ba6cff04bbe5b995de7f899a38eb57f189e49927d6b8b6ccb6883"},
   "zarex": {:hex, :zarex, "1.0.5", "58239e3ee5d75f343262bb4df5cf466555a1c689f920e5d3651a9333972f7c7e", [:mix], [], "hexpm", "9fb72ef0567c2b2742f5119a1ba8a24a2fabb21b8d09820aefbf3e592fa9a46a"},
 }
diff --git a/test/fixtures/demuxed_and_depayloaded_video.ms b/test/fixtures/demuxed_and_depayloaded_video.ms
index 2cfa4c7710f5fdb6fde4355bd90d79779e5f1d96..7ba1cb15f92413c24c9e23e59ecc7efd812ea9fa 100644
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diff --git a/test/fixtures/isom/ref_two_tracks.mp4 b/test/fixtures/isom/ref_two_tracks.mp4
index 0bcd39c117368a877970964457b6076e61f8addd..d716cc85b2ff9a71df5b69529d47d60b61ed4796 100644
GIT binary patch
delta 188
zcmaDegX79fj)pCaE8j3F=uTh#hOwA&=JbGHjMCGs-ZHu~@tRI=e#;ob_+a{tw~Y3T
z3${zVV|>q6pOIWrQp^AW+(3$vfx!mEV}jBY@)>2J=13Hm6vONRnhmmt;Wq=rcDb*N
Ge&PV$At6ry

delta 60
zcmV-C0K@;(nF#Ed2!ON!sq6wD#h0t>0doN{mmlo`Vgd}!mmK>68ke2z0XhMAm)PwA
SKLI$m814b@2DfkZ0c95(hZ!XR

diff --git a/test/fixtures/isom/ref_two_tracks_fast_start.mp4 b/test/fixtures/isom/ref_two_tracks_fast_start.mp4
index 1f81247fc5568c11277af00d5dbf0275a0fafdfa..df2e6cf5423525b4a3f1e421a236ab0883749d59 100644
GIT binary patch
delta 244
zcmaDegX79fjtNRk3c3?jiWz54KFKRRakD!Uujyo6KB>uKj8=>fCI>RwGcMRXk?}oS
zN=9-?NihQia04ku1_m1tj|oas$Y+!VnzOlvLzz`gA(Vk3GL?a$N05PGZvz9v>tzg#
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ZZ1rPc+&Phf@%i%Rr}EpM$}_gV0RZ7IF-!me

delta 138
zcmV;50CoS=nF#Ed2#_KIAH|U*a{)1vF%BD%vqu69&5`_60eF*90Y3pavylPs2D9i0
z9|a~K?EnB+{Qv-qsQ>`I7ytn4J^%q5dH?}Rvj72j{{R7|)c^tBTeB?=`w=A<003nt
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diff --git a/test/fixtures/isom/ref_video.mp4 b/test/fixtures/isom/ref_video.mp4
index c35d887bc2ee93c36e7e121e7598f240fcf5469e..a07bd0ef67b6c94f2adecfd0a814d887ee3da0db 100644
GIT binary patch
delta 175
zcmaDmo9XHtrVU;VOnkhPeHw}xXHGuQki^7mI$5PLgz>@T%0_#}1)Fy^zGth?NG>TU
sW`F>0AjQbQU<2YYL1_y4jIvO3B#KLlVfFyc2HC^#n}K2T{ti7>0Ks1yw*UYD

delta 47
zcmV+~0MP%{oC58e0<cPe0u7~;On`F%F_XZ6Vgd}!lO%yu0eF*nfj<E_v$=uq2D1=}
FMFrAC62brg

diff --git a/test/fixtures/isom/ref_video_fast_start.mp4 b/test/fixtures/isom/ref_video_fast_start.mp4
index 1dc913e30d41a3dba4a0b1c2389b01b7de46a8bd..11cbe1949d539adb82ca596d561b1c599de27659 100644
GIT binary patch
delta 188
zcmaDmo9XHtrU^<+e7qA?iWz54oRP%DYdY~y2;+mvfsFQy3pP(=e9xAWkz7(z%m4x0
zK#Gxp!3M-*g3=W78D)XyY_8!@W>w=eWnfT_XJF9pWMHszV_<O8U|<NG#=sDx#=wwn
R#=uYvRN7j&`6#bO0|20I9UcGx

delta 87
zcmV-d0I2`foC58e0+1pC4W*GJa{)1tm|_A9&5`_60eF*90Y3pavylPs2D9i09|a~2
t%>V!*_W%GdApih5-T(kazyJVIE&u>qz5oDb&Hw;%wEzHx39~H@D1ZiT8h8Kz

diff --git a/test/fixtures/isom/ref_video_hevc.mp4 b/test/fixtures/isom/ref_video_hevc.mp4
index 7f3e0e299b585115c1284e7f6fc83745af697301..edd6736aea1626d60daa41226c54b900d155a6e8 100644
GIT binary patch
delta 191
zcmca|obkyC#tm;nnfNLvzYi^9;$xkh9G1+uaPsl6U?yIl$ui+~OuRgsW5SKu>n9|a
yloT^SfB=wUWMHrX@tB}Ag?vUnggFi%bAjerfM{-rI4?-R0VDvD*xViG$qE2ouo#j6

delta 49
zcmV-10M7s9$N|*H0kG{=0uAYt?^SXF4Rw=aR$~DXlgCz50t~#999KR941BX(S2G8*
HA74cU56=>K

diff --git a/test/membrane_mp4/muxer/isom/integration_test.exs b/test/membrane_mp4/muxer/isom/integration_test.exs
index 1766822..f3f74a8 100644
--- a/test/membrane_mp4/muxer/isom/integration_test.exs
+++ b/test/membrane_mp4/muxer/isom/integration_test.exs
@@ -237,4 +237,31 @@ defmodule Membrane.MP4.Muxer.ISOM.IntegrationTest do
                      1_000
     end
   end
+
+  describe "ctts table" do
+    test "should not be stored when dts and pts values are equal" do
+      prepare_test("video")
+
+      structure = [
+        child(:file, %Membrane.File.Source{location: "test/fixtures/in_video.h264"})
+        |> child(:parser, %Membrane.H264.Parser{
+          generate_best_effort_timestamps: %{framerate: {30, 1}, add_dts_offset: false},
+          output_stream_structure: :avc1
+        })
+        |> child(:muxer, %Membrane.MP4.Muxer.ISOM{chunk_duration: Time.seconds(1)})
+        |> child(:sink, %Membrane.File.Sink{location: out_path_for("video")})
+      ]
+
+      pid = Pipeline.start_link_supervised!(spec: structure)
+
+      assert_end_of_stream(pid, :sink, :input)
+      refute_sink_buffer(pid, :sink, _buffer, 0)
+
+      assert :ok == Pipeline.terminate(pid)
+
+      assert {parsed_out, <<>>} = out_path_for("video") |> File.read!() |> Container.parse!()
+      assert Container.get_box(parsed_out, [:moov, :trak, :mdia, :minf, :stbl, :stts])
+      refute Container.get_box(parsed_out, [:moov, :trak, :mdia, :minf, :stbl, :ctts])
+    end
+  end
 end