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LibVideo/VP9: Move quantizer indices into FrameContext

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This also renames (most?) of the related quantizer functions and
variables to make more sense. I haven't determined what AC/DC stands
for here, but it may be just an arbitrary naming scheme for the first
and subsequent coefficients used to quantize the residuals for a block.
This commit is contained in:
Zaggy1024 2022-11-23 06:26:02 -06:00 • committed by Andreas Kling
parent 0df5c1f32f
commit f4e835635f
5 changed files with 50 additions and 42 deletions
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9
Userland/Libraries/LibVideo/VP9/Parser.h
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@ -65,7 +65,7 @@ private:
DecoderErrorOr<void> compute_image_size(FrameContext&);
DecoderErrorOr<InterpolationFilter> read_interpolation_filter();
DecoderErrorOr<void> loop_filter_params(FrameContext&);
DecoderErrorOr<void> quantization_params();
DecoderErrorOr<void> quantization_params(FrameContext&);
DecoderErrorOr<i8> read_delta_q();
DecoderErrorOr<void> segmentation_params();
DecoderErrorOr<u8> read_prob();
@ -76,7 +76,7 @@ private:
/* (6.3) Compressed Header Syntax */
DecoderErrorOr<void> compressed_header(FrameContext&);
DecoderErrorOr<void> read_tx_mode();
DecoderErrorOr<void> read_tx_mode(FrameContext const&);
DecoderErrorOr<void> tx_mode_probs();
DecoderErrorOr<u8> diff_update_prob(u8 prob);
DecoderErrorOr<u8> decode_term_subexp();
@ -148,11 +148,6 @@ private:
FrameType m_previous_frame_type { FrameType::KeyFrame };
Array<i8, MAX_REF_FRAMES> m_previous_loop_filter_ref_deltas;
Array<i8, 2> m_previous_loop_filter_mode_deltas;
u8 m_base_q_idx { 0 };
i8 m_delta_q_y_dc { 0 };
i8 m_delta_q_uv_dc { 0 };
i8 m_delta_q_uv_ac { 0 };
bool m_lossless { false };
u8 m_segmentation_tree_probs[7];
u8 m_segmentation_pred_prob[3];
bool m_feature_enabled[8][4];