RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-28 02:47:34 +00:00
Code Issues Activity Actions

LibVideo/VP9: Store color config in the frame context

Browse source 
The color config is reused for most inter predicted frames, so we use a
struct ColorConfig to store the config from intra frames, and put it in
a field in Parser to copy from when an inter frame without color config
is encountered.
This commit is contained in:
Zaggy1024 2022-11-22 19:15:38 -06:00 • committed by Andreas Kling
parent 9f573264ea
commit 40bc987fe3
5 changed files with 232 additions and 226 deletions
Download patch file Download diff file Expand all files Collapse all files

28
Userland/Libraries/LibVideo/VP9/Decoder.h
View file

@ -74,20 +74,20 @@ private:
/* (8.6) Reconstruction and Dequantization */
// FIXME: These should be inline or constexpr
u16 dc_q(u8 b);
u16 ac_q(u8 b);
u16 dc_q(u8 bit_depth, u8 b);
u16 ac_q(u8 bit_depth, u8 b);
// Returns the quantizer index for the current block
u8 get_qindex();
// Returns the quantizer value for the dc coefficient for a particular plane
u16 get_dc_quant(u8 plane);
u16 get_dc_quant(u8 bit_depth, u8 plane);
// Returns the quantizer value for the ac coefficient for a particular plane
u16 get_ac_quant(u8 plane);
u16 get_ac_quant(u8 bit_depth, u8 plane);
// (8.6.2) Reconstruct process
DecoderErrorOr<void> reconstruct(u8 plane, BlockContext const&, u32 transform_block_x, u32 transform_block_y, TXSize transform_block_size);
// (8.7) Inverse transform process
DecoderErrorOr<void> inverse_transform_2d(Span<Intermediate> dequantized, u8 log2_of_block_size);
DecoderErrorOr<void> inverse_transform_2d(u8 bit_depth, Span<Intermediate> dequantized, u8 log2_of_block_size);
// (8.7.1) 1D Transforms
// (8.7.1.1) Butterfly functions
@ -95,9 +95,9 @@ private:
inline i32 cos64(u8 angle);
inline i32 sin64(u8 angle);
// The function B( a, b, angle, 0 ) performs a butterfly rotation.
inline void butterfly_rotation_in_place(Span<Intermediate> data, size_t index_a, size_t index_b, u8 angle, bool flip);
inline void butterfly_rotation_in_place(u8 bit_depth, Span<Intermediate> data, size_t index_a, size_t index_b, u8 angle, bool flip);
// The function H( a, b, 0 ) performs a Hadamard rotation.
inline void hadamard_rotation_in_place(Span<Intermediate> data, size_t index_a, size_t index_b, bool flip);
inline void hadamard_rotation_in_place(u8 bit_depth, Span<Intermediate> data, size_t index_a, size_t index_b, bool flip);
// The function SB( a, b, angle, 0 ) performs a butterfly rotation.
// Spec defines the source as array T, and the destination array as S.
template<typename S, typename D>
@ -111,7 +111,7 @@ private:
inline i32 round_2(T value, u8 bits);
// Checks whether the value is representable by a signed integer with (8 + bit_depth) bits.
inline bool check_intermediate_bounds(Intermediate value);
inline bool check_intermediate_bounds(u8 bit_depth, Intermediate value);
// (8.7.1.10) This process does an in-place Walsh-Hadamard transform of the array T (of length 4).
inline DecoderErrorOr<void> inverse_walsh_hadamard_transform(Span<Intermediate> data, u8 log2_of_block_size, u8 shift);
@ -119,7 +119,7 @@ private:
// (8.7.1.2) Inverse DCT array permutation process
inline DecoderErrorOr<void> inverse_discrete_cosine_transform_array_permutation(Span<Intermediate> data, u8 log2_of_block_size);
// (8.7.1.3) Inverse DCT process
inline DecoderErrorOr<void> inverse_discrete_cosine_transform(Span<Intermediate> data, u8 log2_of_block_size);
inline DecoderErrorOr<void> inverse_discrete_cosine_transform(u8 bit_depth, Span<Intermediate> data, u8 log2_of_block_size);
// (8.7.1.4) This process performs the in-place permutation of the array T of length 2 n which is required as the first step of
// the inverse ADST.
@ -129,21 +129,19 @@ private:
inline void inverse_asymmetric_discrete_sine_transform_output_array_permutation(Span<Intermediate> data, u8 log2_of_block_size);
// (8.7.1.6) This process does an in-place transform of the array T to perform an inverse ADST.
inline void inverse_asymmetric_discrete_sine_transform_4(Span<Intermediate> data);
inline void inverse_asymmetric_discrete_sine_transform_4(u8 bit_depth, Span<Intermediate> data);
// (8.7.1.7) This process does an in-place transform of the array T using a higher precision array S for intermediate
// results.
inline DecoderErrorOr<void> inverse_asymmetric_discrete_sine_transform_8(Span<Intermediate> data);
inline DecoderErrorOr<void> inverse_asymmetric_discrete_sine_transform_8(u8 bit_depth, Span<Intermediate> data);
// (8.7.1.8) This process does an in-place transform of the array T using a higher precision array S for intermediate
// results.
inline DecoderErrorOr<void> inverse_asymmetric_discrete_sine_transform_16(Span<Intermediate> data);
inline DecoderErrorOr<void> inverse_asymmetric_discrete_sine_transform_16(u8 bit_depth, Span<Intermediate> data);
// (8.7.1.9) This process performs an in-place inverse ADST process on the array T of size 2 n for 2 ≤ n ≤ 4.
inline DecoderErrorOr<void> inverse_asymmetric_discrete_sine_transform(Span<Intermediate> data, u8 log2_of_block_size);
inline DecoderErrorOr<void> inverse_asymmetric_discrete_sine_transform(u8 bit_depth, Span<Intermediate> data, u8 log2_of_block_size);
/* (8.10) Reference Frame Update Process */
DecoderErrorOr<void> update_reference_frames(FrameContext const&);
inline CodingIndependentCodePoints get_cicp_color_space();
NonnullOwnPtr<Parser> m_parser;
Vector<u16> m_output_buffers[3];