From f372a9b346ce478fb729f729553452f4d3a482f1 Mon Sep 17 00:00:00 2001
From: Nico Weber <thakis@chromium.org>
Date: Fri, 22 Mar 2024 15:30:49 -0400
Subject: [PATCH] LibGfx/ISOBMFF: Add JPEG2000UUIDListBox

---
 .../ImageFormats/ISOBMFF/JPEG2000Boxes.cpp    | 26 ++++++++++++++++++-
 .../ImageFormats/ISOBMFF/JPEG2000Boxes.h      |  8 ++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
index 5bd95032726..2fac28b623e 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
+++ b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
@@ -141,8 +141,10 @@ void JPEG2000SignatureBox::dump(String const& prepend) const
 
 ErrorOr<void> JPEG2000UUIDInfoBox::read_from_stream(BoxStream& stream)
 {
-    auto make_subbox = [](BoxType type, BoxStream&) -> ErrorOr<Optional<NonnullOwnPtr<Box>>> {
+    auto make_subbox = [](BoxType type, BoxStream& stream) -> ErrorOr<Optional<NonnullOwnPtr<Box>>> {
         switch (type) {
+        case BoxType::JPEG2000UUIDListBox:
+            return TRY(JPEG2000UUIDListBox::create_from_stream(stream));
         default:
             return OptionalNone {};
         }
@@ -157,5 +159,27 @@ void JPEG2000UUIDInfoBox::dump(String const& prepend) const
     SuperBox::dump(prepend);
 }
 
+ErrorOr<void> JPEG2000UUIDListBox::read_from_stream(BoxStream& stream)
+{
+    u16 count = TRY(stream.read_value<BigEndian<u16>>());
+    for (u32 i = 0; i < count; ++i) {
+        Array<u8, 16> uuid;
+        TRY(stream.read_until_filled(uuid));
+        uuids.append(uuid);
+    }
+    return {};
+}
+
+void JPEG2000UUIDListBox::dump(String const& prepend) const
+{
+    Box::dump(prepend);
+    for (auto const& uuid : uuids) {
+        out("{}- ", prepend);
+        for (auto byte : uuid) {
+            out("{:02x}", byte);
+        }
+        outln();
+    }
+}
 
 }
diff --git a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
index 9b1a56de506..b7fce691129 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
+++ b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
@@ -61,8 +61,16 @@ struct JPEG2000SignatureBox final : public Box {
     u32 signature { 0 };
 };
 
+// I.7.3 UUID Info boxes (superbox)
 struct JPEG2000UUIDInfoBox final : public SuperBox {
     BOX_SUBTYPE(JPEG2000UUIDInfoBox);
 };
 
+// I.7.3.1 UUID List box
+struct JPEG2000UUIDListBox final : public Box {
+    BOX_SUBTYPE(JPEG2000UUIDListBox);
+
+    Vector<Array<u8, 16>> uuids;
+};
+
 }