memorysafety/rav1d

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An AV1 decoder in Rust.

Stars: 643
Forks: 81
Open beginner issues: 0
Indexed issues: 78

Dominant language: Assembly
License: BSD-2-Clause
Last GitHub push: Aug 14, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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78 open issues indexed

Android ARM64: ASM-enabled re_rav1d cdylib fails to link due to direct AArch64 relocations Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

memorysafety/rav1d#1504 · Opened Sep 19, 2026
Any decode error aborts the process with max_frame_delay=1: on_error unwraps frame_hdr that decode_frame_exit already took Open

Difficulty 2/5 1-3 hours Newbie friendliness 82/100

memorysafety/rav1d#1497 · 1 comment · Opened Aug 7, 2026
Investigate interlock crate as a possible replacement for DisjointMut Open

idiomaticity safety/correctness

Difficulty 5/5 Over a week Newbie friendliness 35/100

memorysafety/rav1d#1495 · 1 comment · Opened Jul 24, 2026
FYI: rav2d — AV2 equivalent of rav1d, complete Rust port of dav2d Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

memorysafety/rav1d#1494 · Opened May 23, 2026
Unwrap in decode path Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

memorysafety/rav1d#1492 · 1 comment · Opened May 18, 2026
Backport updates from dav1d 1.5.3 Open

backports

Difficulty 4/5 3-5 days Newbie friendliness 25/100

memorysafety/rav1d#1491 · Opened May 7, 2026
Backport updates from dav1d 1.5.2 Open

backports

Difficulty 4/5 3-5 days Newbie friendliness 35/100

memorysafety/rav1d#1490 · Opened May 7, 2026
YCgCo-Re/Ro matrices Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

memorysafety/rav1d#1486 · 1 comment · Opened Apr 9, 2026
arm64 cross-compiled build failed: src/arm/asm-offsets.h: No such file or directory Open

memorysafety/rav1d#1449 · 3 comments · 1 reaction · 1 assignee · Opened Jul 23, 2025
Analyzing per frame performance Open

Difficulty 5/5 Over a week Newbie friendliness 18/100

memorysafety/rav1d#1437 · 1 comment · 1 reaction · Opened Jun 21, 2025
Upgrade to edition 2024 Open

idiomaticity low priority

Difficulty 3/5 1-2 days Newbie friendliness 25/100

memorysafety/rav1d#1435 · 3 comments · Opened Jun 20, 2025
Run `cargo doc` in CI Open

documentation idiomaticity low priority testing

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

memorysafety/rav1d#1434 · Opened Jun 20, 2025
Performance: Heap usage and allocation on rav1d is significantly higher than on original dav1d code Open

memory usage performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

memorysafety/rav1d#1419 · 2 comments · Opened May 30, 2025
[Linux] calls to assembly routines have excessive indirection Open

performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

memorysafety/rav1d#1417 · 3 comments · 2 reactions · Opened May 27, 2025
Profile-guided optimizations (PGO) Open

performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

memorysafety/rav1d#1408 · 2 comments · 3 reactions · Opened May 22, 2025
`rav1d::src::recon::mc` is significantly slower than in dav1d Open

performance

Difficulty 4/5 3-5 days Newbie friendliness 32/100

memorysafety/rav1d#1406 · Opened May 20, 2025
`fn prepare_intra_edges` is slower in rav1d than dav1d Open

performance

Difficulty 4/5 3-5 days Newbie friendliness 38/100

memorysafety/rav1d#1394 · 2 comments · Opened May 16, 2025
Arena allocated collections Open

performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

memorysafety/rav1d#1386 · Opened Apr 24, 2025
Move CI back to Ubuntu 24.04 Open

low priority testing

memorysafety/rav1d#1384 · 1 assignee · Opened Apr 21, 2025
Backport updates from dav1d 1.5.1 Open

backports

memorysafety/rav1d#1372 · 2 comments · 1 reaction · 1 assignee · Opened Mar 11, 2025
Backport updates from dav1d 1.5.0 Open

backports

memorysafety/rav1d#1371 · 2 comments · 1 reaction · 1 assignee · Opened Mar 11, 2025
rav1d fails or incorrectly decodes AV1 sample videos Open

bug help wanted safety/correctness

memorysafety/rav1d#1370 · 14 comments · 1 assignee · Opened Jan 27, 2025
See if unordered atomics are a feasible replacement for `DisjointMut`'s potential unsoundness Open

low priority performance safety/correctness

Difficulty 5/5 Over a week Newbie friendliness 25/100

memorysafety/rav1d#1359 · Opened Sep 17, 2024
Large number of page faults occurring in `fn rav1d_submit_frame` Open

performance

memorysafety/rav1d#1358 · 11 comments · 1 assignee · Opened Sep 13, 2024
Move `fn Disjoint{Immut,Mut}Guard::new` disjoint panic checks to before reference is materialized to avoid UB Open

bug safety/correctness

Difficulty 4/5 3-5 days Newbie friendliness 38/100

memorysafety/rav1d#1355 · Opened Sep 10, 2024
Safe functions cannot impose constraints on callers Open

safety/correctness

Difficulty 4/5 3-5 days Newbie friendliness 25/100

memorysafety/rav1d#1354 · 8 comments · 6 reactions · Opened Sep 10, 2024
Run `cargo clippy --fix` Open

good first issue idiomaticity refactoring

Difficulty 3/5 1-2 days Newbie friendliness 35/100

memorysafety/rav1d#1353 · Opened Sep 9, 2024
Fix rest of `clippy` errors and warnings and `#![deny(clippy::all)]` Open

good first issue low priority refactoring

Difficulty 4/5 3-5 days Newbie friendliness 45/100

memorysafety/rav1d#1352 · Opened Sep 9, 2024
Reorganize module structure Open

idiomaticity low priority refactoring

Difficulty 4/5 3-5 days Newbie friendliness 35/100

memorysafety/rav1d#1351 · Opened Sep 9, 2024
Reorganize workspace structure Open

good first issue idiomaticity low priority refactoring

Difficulty 4/5 3-5 days Newbie friendliness 42/100

memorysafety/rav1d#1350 · Opened Sep 9, 2024
Rewrite `rav1d-tools` in safe Rust from scratch Open

enhancement low priority refactoring

Difficulty 5/5 Over a week Newbie friendliness 25/100

memorysafety/rav1d#1349 · Opened Sep 9, 2024
See if the task system can be optimized Open

enhancement low priority performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

memorysafety/rav1d#1348 · Opened Sep 9, 2024
Remove unused `Av1BlockInter::drl_idx` field Open

good first issue low priority

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

memorysafety/rav1d#1347 · Opened Sep 9, 2024
Replace `addr_of_mut!` with `&raw mut` and remove `unsafe` (Rust 1.82) Open

good first issue idiomaticity low priority safety/correctness

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

memorysafety/rav1d#1346 · Opened Sep 9, 2024
Replace unnecessary `usize::try_from`s with `as` casts Open

good first issue low priority performance

Difficulty 3/5 1-2 days Newbie friendliness 45/100

memorysafety/rav1d#1344 · Opened Sep 9, 2024
Add `unsafe trait Provenanceless` (or similar) for `DisjointMut` to ensure data races are memory safe Open

safety/correctness

Difficulty 5/5 Over a week Newbie friendliness 20/100

memorysafety/rav1d#1342 · Opened Sep 9, 2024
Make remaining integer boolean fields and args `bool`s Open

good first issue idiomaticity low priority performance refactoring

Difficulty 4/5 3-5 days Newbie friendliness 30/100

memorysafety/rav1d#1341 · Opened Sep 9, 2024
Make remaining C `enum`s into Rust `enum`s Open

good first issue idiomaticity low priority refactoring

Difficulty 4/5 3-5 days Newbie friendliness 32/100

memorysafety/rav1d#1340 · Opened Sep 9, 2024
Remove `#[repr(C)]` from types that don't need it Open

good first issue idiomaticity low priority performance refactoring

Difficulty 4/5 3-5 days Newbie friendliness 35/100

memorysafety/rav1d#1339 · Opened Sep 9, 2024
Add `Copy` to some structs Open

performance

memorysafety/rav1d#1332 · 7 comments · 1 assignee · Opened Jul 20, 2024
Tracking issue for performance Open

performance

Difficulty 5/5 Over a week Newbie friendliness 25/100

memorysafety/rav1d#1294 · 7 comments · Opened Jul 9, 2024
Performance regression testing in CI Open

low priority

memorysafety/rav1d#1284 · 1 assignee · Opened Jul 3, 2024
Make `fn Rav1dPictureDataComponent::wrap_buf` safe with lifetimes Open

safety/correctness

Difficulty 4/5 3-5 days Newbie friendliness 25/100

memorysafety/rav1d#1274 · Opened Jun 30, 2024
Enable and fix `#![deny(clippy::undocumented_unsafe_blocks)]` and `#![deny(clippy::missing_safety_doc)]` Open

safety/correctness

memorysafety/rav1d#1270 · 1 assignee · Opened Jun 28, 2024
Backport updates from dav1d 1.4.2 Open

backports

memorysafety/rav1d#1254 · 1 comment · 1 reaction · 1 assignee · Opened Jun 26, 2024
Apply `clippy::cast_lossless` to make code more readable Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

memorysafety/rav1d#1245 · 2 comments · Opened Jun 24, 2024
`fn decode_coefs` is slow Open

performance

memorysafety/rav1d#1180 · 3 comments · 1 assignee · Opened Jun 6, 2024
Remove `unsafe impl {Send,Sync} for {Rav1dContext,TaskThreadData_delayed_fg}` Open

safety/correctness

memorysafety/rav1d#1177 · 1 assignee · Opened Jun 5, 2024
Build on Android Open

low priority testing

memorysafety/rav1d#1174 · 2 comments · 1 assignee · Opened Jun 4, 2024
Build on Windows Open

testing

memorysafety/rav1d#1151 · 1 comment · 1 reaction · 1 assignee · Opened May 29, 2024

memorysafety/rav1d

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