From 910947799a4d50207d800568dcc14b305c52c9b4 Mon Sep 17 00:00:00 2001
From: bdim <i@bdim.moe>
Date: Thu, 30 Jul 2026 20:15:52 +0800
Subject: [PATCH] pymp4: init at 1.4.0

Assisted-by: OpenAI Codex (GPT-5)
---
 .../pymp4/construct-2.10.70.patch             | 16 ++++++++
 .../python-modules/pymp4/default.nix          | 40 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 +
 3 files changed, 58 insertions(+)
 create mode 100644 pkgs/development/python-modules/pymp4/construct-2.10.70.patch
 create mode 100644 pkgs/development/python-modules/pymp4/default.nix

diff --git a/pkgs/development/python-modules/pymp4/construct-2.10.70.patch b/pkgs/development/python-modules/pymp4/construct-2.10.70.patch
new file mode 100644
index 000000000000..bf3447083ca6
--- /dev/null
+++ b/pkgs/development/python-modules/pymp4/construct-2.10.70.patch
@@ -0,0 +1,16 @@
+--- a/src/pymp4/parser.py
++++ b/src/pymp4/parser.py
+@@ -16,0 +17 @@
++from io import BytesIO
+@@ -643,0 +645,8 @@
++class RelativePrefixed(Prefixed):
++    def _parse(self, stream, context, path):
++        length = self.lengthfield._parsereport(stream, context, path)
++        if self.includelength:
++            length -= self.lengthfield._sizeof(context, path)
++        data = stream_read(stream, length, path)
++        return self.subcon._parsereport(BytesIO(data), context, path)
++
+@@ -645 +654 @@
+-Box = Prefixed(Int32ub, Struct(
++Box = RelativePrefixed(Int32ub, Struct(
diff --git a/pkgs/development/python-modules/pymp4/default.nix b/pkgs/development/python-modules/pymp4/default.nix
new file mode 100644
index 000000000000..80b3eeeffade
--- /dev/null
+++ b/pkgs/development/python-modules/pymp4/default.nix
@@ -0,0 +1,40 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  poetry-core,
+  construct,
+  pytestCheckHook,
+}:
+
+buildPythonPackage {
+  pname = "pymp4";
+  version = "1.4.0-unstable-2023-08-07";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "devine-dl";
+    repo = "pymp4";
+    rev = "33dc5d620f361cb49d713b60dcb2686ab8696f91";
+    hash = "sha256-tPIbehjYHg5+S62sorsWow+u/eBkqJYf6xMI8q4vEgY=";
+  };
+
+  patches = [ ./construct-2.10.70.patch ];
+
+  pythonRelaxDeps = [ "construct" ];
+
+  build-system = [ poetry-core ];
+
+  dependencies = [ construct ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+
+  pythonImportsCheck = [ "pymp4" ];
+
+  meta = {
+    description = "Python library for parsing and manipulating MP4 files";
+    homepage = "https://github.com/devine-dl/pymp4";
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ bdim404 ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index ef8c6c3b8287..4672ed8ce10e 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -15119,6 +15119,8 @@ self: super: with self; {
 
   pymorphy3-dicts-uk = callPackage ../development/python-modules/pymorphy3-dicts-uk { };
 
+  pymp4 = callPackage ../development/python-modules/pymp4 { };
+
   pympler = callPackage ../development/python-modules/pympler { };
 
   pymsgbox = callPackage ../development/python-modules/pymsgbox { };