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LibVideo: Convert subsampled frames in a vectorization-friendly way

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This change reduces the time spent converting frames for display in
a 1080p video from ~19ms per frame to ~12ms per frame.
This commit is contained in:
Zaggy1024 2023-04-16 07:43:31 -05:00 • committed by Tim Flynn
parent f2c0cee522
commit 7a58577fee
4 changed files with 114 additions and 59 deletions
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18
Userland/Libraries/LibVideo/VideoFrame.h
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@ -23,20 +23,20 @@ public:
virtual DecoderErrorOr<void> output_to_bitmap(Gfx::Bitmap& bitmap) = 0;
virtual DecoderErrorOr<NonnullRefPtr<Gfx::Bitmap>> to_bitmap()
{
auto bitmap = DECODER_TRY_ALLOC(Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, m_size));
auto bitmap = DECODER_TRY_ALLOC(Gfx::Bitmap::create(Gfx::BitmapFormat::BGRx8888, { width(), height() }));
TRY(output_to_bitmap(bitmap));
return bitmap;
}
inline Gfx::IntSize size() { return m_size; }
inline size_t width() { return size().width(); }
inline size_t height() { return size().height(); }
inline Gfx::Size<u32> size() const { return m_size; }
inline u32 width() const { return size().width(); }
inline u32 height() const { return size().height(); }
inline u8 bit_depth() { return m_bit_depth; }
inline u8 bit_depth() const { return m_bit_depth; }
inline CodingIndependentCodePoints& cicp() { return m_cicp; }
protected:
VideoFrame(Gfx::IntSize size,
VideoFrame(Gfx::Size<u32> size,
u8 bit_depth, CodingIndependentCodePoints cicp)
: m_size(size)
, m_bit_depth(bit_depth)
@ -44,7 +44,7 @@ protected:
{
}
Gfx::IntSize m_size;
Gfx::Size<u32> m_size;
u8 m_bit_depth;
CodingIndependentCodePoints m_cicp;
};
@ -53,13 +53,13 @@ class SubsampledYUVFrame : public VideoFrame {
public:
static ErrorOr<NonnullOwnPtr<SubsampledYUVFrame>> try_create(
Gfx::IntSize size,
Gfx::Size<u32> size,
u8 bit_depth, CodingIndependentCodePoints cicp,
bool subsampling_horizontal, bool subsampling_vertical,
Span<u16> plane_y, Span<u16> plane_u, Span<u16> plane_v);
SubsampledYUVFrame(
Gfx::IntSize size,
Gfx::Size<u32> size,
u8 bit_depth, CodingIndependentCodePoints cicp,
bool subsampling_horizontal, bool subsampling_vertical,
FixedArray<u16>& plane_y, FixedArray<u16>& plane_u, FixedArray<u16>& plane_v)