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https://github.com/RGBCube/serenity
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LibVideo: Make new DecoderError class to report useful errors
This allows runtime strings, so we can format the errors to make them more helpful. Errors in the VP9 decoder will now print out a function, filename and line number for where a read or bitstream requirement has failed. The DecoderErrorCategory enum will classify the errors so library users can show general user-friendly error messages, while providing the debug information separately. Any non-DecoderErrorOr<> results can be wrapped by DECODER_TRY to return from decoder functions. This will also add the extra information mentioned above to the error message.
This commit is contained in:
Zaggy1024
Andrew Kaster
parent
72efd9a5ff
commit
da9ff31166
5 changed files with 369 additions and 278 deletions
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@ -7,14 +7,17 @@
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#pragma once
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#include <AK/ByteBuffer.h>
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#include <AK/OwnPtr.h>
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#include <LibGfx/Forward.h>
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#include <LibVideo/DecoderError.h>
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#include "BitStream.h"
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#include "LookupTables.h"
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#include "MV.h"
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#include "ProbabilityTables.h"
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#include "SyntaxElementCounter.h"
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#include "TreeParser.h"
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#include <AK/ByteBuffer.h>
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#include <AK/OwnPtr.h>
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namespace Video::VP9 {
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@ -27,23 +30,12 @@ class Parser {
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public:
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explicit Parser(Decoder&);
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~Parser();
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ErrorOr<void> parse_frame(ByteBuffer const&);
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DecoderErrorOr<void> parse_frame(ByteBuffer const&);
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void dump_info();
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private:
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ErrorOr<FrameType> read_frame_type()
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{
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if (TRY(m_bit_stream->read_bit()))
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return NonKeyFrame;
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return KeyFrame;
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}
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ErrorOr<ColorRange> read_color_range()
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{
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if (TRY(m_bit_stream->read_bit()))
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return FullSwing;
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return StudioSwing;
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}
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DecoderErrorOr<FrameType> read_frame_type();
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DecoderErrorOr<ColorRange> read_color_range();
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/* Utilities */
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void clear_context(Vector<u8>& context, size_t size);
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@ -53,84 +45,84 @@ private:
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/* (6.1) Frame Syntax */
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bool trailing_bits();
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ErrorOr<void> refresh_probs();
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DecoderErrorOr<void> refresh_probs();
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/* (6.2) Uncompressed Header Syntax */
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ErrorOr<void> uncompressed_header();
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ErrorOr<void> frame_sync_code();
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ErrorOr<void> color_config();
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ErrorOr<void> frame_size();
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ErrorOr<void> render_size();
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ErrorOr<void> frame_size_with_refs();
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DecoderErrorOr<void> uncompressed_header();
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DecoderErrorOr<void> frame_sync_code();
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DecoderErrorOr<void> color_config();
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DecoderErrorOr<void> frame_size();
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DecoderErrorOr<void> render_size();
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DecoderErrorOr<void> frame_size_with_refs();
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void compute_image_size();
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ErrorOr<void> read_interpolation_filter();
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ErrorOr<void> loop_filter_params();
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ErrorOr<void> quantization_params();
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ErrorOr<i8> read_delta_q();
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ErrorOr<void> segmentation_params();
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ErrorOr<u8> read_prob();
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ErrorOr<void> tile_info();
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DecoderErrorOr<void> read_interpolation_filter();
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DecoderErrorOr<void> loop_filter_params();
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DecoderErrorOr<void> quantization_params();
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DecoderErrorOr<i8> read_delta_q();
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DecoderErrorOr<void> segmentation_params();
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DecoderErrorOr<u8> read_prob();
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DecoderErrorOr<void> tile_info();
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u16 calc_min_log2_tile_cols();
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u16 calc_max_log2_tile_cols();
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void setup_past_independence();
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/* (6.3) Compressed Header Syntax */
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ErrorOr<void> compressed_header();
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ErrorOr<void> read_tx_mode();
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ErrorOr<void> tx_mode_probs();
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ErrorOr<u8> diff_update_prob(u8 prob);
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ErrorOr<u8> decode_term_subexp();
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DecoderErrorOr<void> compressed_header();
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DecoderErrorOr<void> read_tx_mode();
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DecoderErrorOr<void> tx_mode_probs();
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DecoderErrorOr<u8> diff_update_prob(u8 prob);
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DecoderErrorOr<u8> decode_term_subexp();
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u8 inv_remap_prob(u8 delta_prob, u8 prob);
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u8 inv_recenter_nonneg(u8 v, u8 m);
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ErrorOr<void> read_coef_probs();
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ErrorOr<void> read_skip_prob();
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ErrorOr<void> read_inter_mode_probs();
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ErrorOr<void> read_interp_filter_probs();
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ErrorOr<void> read_is_inter_probs();
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ErrorOr<void> frame_reference_mode();
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ErrorOr<void> frame_reference_mode_probs();
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ErrorOr<void> read_y_mode_probs();
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ErrorOr<void> read_partition_probs();
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ErrorOr<void> mv_probs();
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ErrorOr<u8> update_mv_prob(u8 prob);
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DecoderErrorOr<void> read_coef_probs();
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DecoderErrorOr<void> read_skip_prob();
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DecoderErrorOr<void> read_inter_mode_probs();
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DecoderErrorOr<void> read_interp_filter_probs();
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DecoderErrorOr<void> read_is_inter_probs();
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DecoderErrorOr<void> frame_reference_mode();
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DecoderErrorOr<void> frame_reference_mode_probs();
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DecoderErrorOr<void> read_y_mode_probs();
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DecoderErrorOr<void> read_partition_probs();
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DecoderErrorOr<void> mv_probs();
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DecoderErrorOr<u8> update_mv_prob(u8 prob);
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void setup_compound_reference_mode();
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/* (6.4) Decode Tiles Syntax */
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ErrorOr<void> decode_tiles();
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DecoderErrorOr<void> decode_tiles();
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void clear_above_context();
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u32 get_tile_offset(u32 tile_num, u32 mis, u32 tile_size_log2);
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ErrorOr<void> decode_tile();
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DecoderErrorOr<void> decode_tile();
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void clear_left_context();
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ErrorOr<void> decode_partition(u32 row, u32 col, u8 block_subsize);
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ErrorOr<void> decode_block(u32 row, u32 col, u8 subsize);
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ErrorOr<void> mode_info();
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ErrorOr<void> intra_frame_mode_info();
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ErrorOr<void> intra_segment_id();
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ErrorOr<void> read_skip();
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DecoderErrorOr<void> decode_partition(u32 row, u32 col, u8 block_subsize);
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DecoderErrorOr<void> decode_block(u32 row, u32 col, u8 subsize);
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DecoderErrorOr<void> mode_info();
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DecoderErrorOr<void> intra_frame_mode_info();
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DecoderErrorOr<void> intra_segment_id();
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DecoderErrorOr<void> read_skip();
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bool seg_feature_active(u8 feature);
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ErrorOr<void> read_tx_size(bool allow_select);
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ErrorOr<void> inter_frame_mode_info();
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ErrorOr<void> inter_segment_id();
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DecoderErrorOr<void> read_tx_size(bool allow_select);
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DecoderErrorOr<void> inter_frame_mode_info();
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DecoderErrorOr<void> inter_segment_id();
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u8 get_segment_id();
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ErrorOr<void> read_is_inter();
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ErrorOr<void> intra_block_mode_info();
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ErrorOr<void> inter_block_mode_info();
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ErrorOr<void> read_ref_frames();
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ErrorOr<void> assign_mv(bool is_compound);
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ErrorOr<void> read_mv(u8 ref);
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ErrorOr<i32> read_mv_component(u8 component);
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ErrorOr<void> residual();
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DecoderErrorOr<void> read_is_inter();
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DecoderErrorOr<void> intra_block_mode_info();
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DecoderErrorOr<void> inter_block_mode_info();
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DecoderErrorOr<void> read_ref_frames();
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DecoderErrorOr<void> assign_mv(bool is_compound);
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DecoderErrorOr<void> read_mv(u8 ref);
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DecoderErrorOr<i32> read_mv_component(u8 component);
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DecoderErrorOr<void> residual();
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TXSize get_uv_tx_size();
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BlockSubsize get_plane_block_size(u32 subsize, u8 plane);
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ErrorOr<bool> tokens(size_t plane, u32 x, u32 y, TXSize tx_size, u32 block_index);
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DecoderErrorOr<bool> tokens(size_t plane, u32 x, u32 y, TXSize tx_size, u32 block_index);
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u32 const* get_scan(size_t plane, TXSize tx_size, u32 block_index);
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ErrorOr<i32> read_coef(Token token);
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DecoderErrorOr<i32> read_coef(Token token);
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/* (6.5) Motion Vector Prediction */
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ErrorOr<void> find_mv_refs(ReferenceFrame, int block);
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ErrorOr<void> find_best_ref_mvs(int ref_list);
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ErrorOr<void> append_sub8x8_mvs(u8 block, u8 ref_list);
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bool use_mv_hp(MV const& delta_mv);
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DecoderErrorOr<void> find_mv_refs(ReferenceFrame, int block);
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DecoderErrorOr<void> find_best_ref_mvs(int ref_list);
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DecoderErrorOr<void> append_sub8x8_mvs(u8 block, u8 ref_list);
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DecoderErrorOr<bool> use_mv_hp(MV const& delta_mv);
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u8 m_profile { 0 };
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u8 m_frame_to_show_map_index { 0 };
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