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Code Issues Projects Releases Packages Wiki Activity Actions 9

LibGfx/ISOBMFF: Introduce JPEG2000ResolutionSubboxBase

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No behavior change.
This commit is contained in:
Nico Weber 2024-03-25 21:28:38 -04:00 • committed by Tim Flynn
commit a9ef2fac01
Notes: sideshowbarker 2024-07-17 07:25:39 +09:00
2 changed files with 20 additions and 5 deletions
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14
Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
View file

@ -144,7 +144,7 @@ void JPEG2000ResolutionBox::dump(String const& prepend) const
SuperBox::dump(prepend);
}
ErrorOr<void> JPEG2000CaptureResolutionBox::read_from_stream(BoxStream& stream)
ErrorOr<void> JPEG2000ResolutionSubboxBase::read_from_stream(BoxStream& stream)
{
vertical_capture_grid_resolution_numerator = TRY(stream.read_value<BigEndian<u16>>());
vertical_capture_grid_resolution_denominator = TRY(stream.read_value<BigEndian<u16>>());
@ -155,13 +155,23 @@ ErrorOr<void> JPEG2000CaptureResolutionBox::read_from_stream(BoxStream& stream)
return {};
}
void JPEG2000CaptureResolutionBox::dump(String const& prepend) const
void JPEG2000ResolutionSubboxBase::dump(String const& prepend) const
{
Box::dump(prepend);
outln("{}- vertical_capture_grid_resolution = {}/{} * 10^{}", prepend, vertical_capture_grid_resolution_numerator, vertical_capture_grid_resolution_denominator, vertical_capture_grid_resolution_exponent);
outln("{}- horizontal_capture_grid_resolution = {}/{} * 10^{}", prepend, horizontal_capture_grid_resolution_numerator, horizontal_capture_grid_resolution_denominator, horizontal_capture_grid_resolution_exponent);
}
ErrorOr<void> JPEG2000CaptureResolutionBox::read_from_stream(BoxStream& stream)
{
return JPEG2000ResolutionSubboxBase::read_from_stream(stream);
}
void JPEG2000CaptureResolutionBox::dump(String const& prepend) const
{
JPEG2000ResolutionSubboxBase::dump(prepend);
}
ErrorOr<void> JPEG2000ContiguousCodestreamBox::read_from_stream(BoxStream& stream)
{
// FIXME: It's wasteful to make a copy of all the image data here. Having just a ReadonlyBytes

11
Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
View file

@ -55,9 +55,9 @@ struct JPEG2000ResolutionBox final : public SuperBox {
BOX_SUBTYPE(JPEG2000ResolutionBox);
};
// I.5.3.7.1 Capture Resolution box
struct JPEG2000CaptureResolutionBox final : public Box {
BOX_SUBTYPE(JPEG2000CaptureResolutionBox);
struct JPEG2000ResolutionSubboxBase : public Box {
ErrorOr<void> read_from_stream(BoxStream&);
virtual void dump(String const& prepend) const override;
u16 vertical_capture_grid_resolution_numerator { 0 };
u16 vertical_capture_grid_resolution_denominator { 0 };
@ -67,6 +67,11 @@ struct JPEG2000CaptureResolutionBox final : public Box {
i8 horizontal_capture_grid_resolution_exponent { 0 };
};
// I.5.3.7.1 Capture Resolution box
struct JPEG2000CaptureResolutionBox final : public JPEG2000ResolutionSubboxBase {
BOX_SUBTYPE(JPEG2000CaptureResolutionBox);
};
// I.5.4 Contiguous Codestream box
struct JPEG2000ContiguousCodestreamBox final : public Box {
BOX_SUBTYPE(JPEG2000ContiguousCodestreamBox);