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LibVideo: Allow bit stream reads to throw errors

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Errors are propagated to the user of the decoder so that they can be
aware of specific places where a read failed.
This commit is contained in:
Zaggy1024 2022-10-08 19:13:02 -05:00 • committed by Andrew Kaster
parent af0584ea53
commit b37ea6b414
10 changed files with 529 additions and 509 deletions
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21
Userland/Libraries/LibVideo/VP9/BitStream.h
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2021, Hunter Salyer <thefalsehonesty@gmail.com>
* Copyright (c) 2022, Gregory Bertilson <zaggy1024@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -19,22 +20,22 @@ public:
{
}
u8 read_byte();
bool read_bit();
ErrorOr<u8> read_byte();
ErrorOr<bool> read_bit();
/* (9.1) */
u8 read_f(size_t n);
u8 read_f8();
u16 read_f16();
ErrorOr<u8> read_f(size_t n);
ErrorOr<u8> read_f8();
ErrorOr<u16> read_f16();
/* (9.2) */
bool init_bool(size_t bytes);
bool read_bool(u8 probability);
bool exit_bool();
u8 read_literal(size_t n);
ErrorOr<void> init_bool(size_t bytes);
ErrorOr<bool> read_bool(u8 probability);
ErrorOr<void> exit_bool();
ErrorOr<u8> read_literal(size_t n);
/* (4.9.2) */
i8 read_s(size_t n);
ErrorOr<i8> read_s(size_t n);
u64 get_position();
size_t bytes_remaining();