av-scenechange

What's Changed

• Update CI and fix rust-toolchain usage by @FreezyLemon in #207
• chore: bump av-decoders by @FreezyLemon in #208
• add maybe-rayon and "threading" feature by @FreezyLemon in #206
• Remove thiserror dependency by @fintelia in #205
• Limit cpufeatures dependency to x86_64 by @felixonmars in #209
• bump rand to 0.8.6 by @FreezyLemon in #212
• remove pastey dependency by @FreezyLemon in #211
• Pass CI by @FreezyLemon in #213
• refactor: simplify asm build script by @shssoichiro in #215
• chore: replace semisafe with native unsafe methods by @shssoichiro in #216
• Update deploy workflow by @FreezyLemon in #217

New Contributors

• @fintelia made their first contribution in #205
• @felixonmars made their first contribution in #209

Full Changelog: v0.23.0...v0.24.1

• perf: change to debug_assert in hot paths
• perf: optimize away checks for invalid block size

• chore!: bump MSRV to 1.95
• chore!: update v_frame to 0.7.0
• feat: add threading Cargo feature, enabled by default, to allow builds without rayon
• feat: add tracing spans and switch tracing output from Chrome traces to Perfetto
• perf: elide more bounds checks in intra/inter analysis paths
• refactor: remove dead sub-pixel motion estimation and motion compensation code
• chore: update av-decoders to 0.11.0 and other dependencies
• chore: remove unused dependencies including pastey and thiserror
• chore: limit cpufeatures dependency to x86_64 targets

Full Changelog: v0.22.2...v0.23.0

• feat: add static_simd Cargo feature
• chore!: bump MSRV to 1.89 (required for target_feature = "avx512*")

What's Changed

• Make DetectionResults Deserialize by @MCOfficer in #204

New Contributors

• @MCOfficer made their first contribution in #204

Full Changelog: v0.22.1...v0.22.2

• feat: Make DetectionResults Deserialize
• perf: add SSE2 for sum_8x8_block

Full Changelog: v0.22.0...v0.22.1

• perf: Revert NonZeroUsize changes as these actually had a negative performance impact

• chore!: bump for breaking change in av-decoders

• fix: Avoid an edge case in predict_dc_intra SIMD
• perf: Use NonZeroUsize to elide many unneeded div by zero checks
• perf: Eliminate some unneeded bounds checking

• Update to v_frame 0.5. This fixes breakages that occurred on HBD with some decoders.

What's Changed

• Better handle licenses attached to assembly routines by @musicinmybrain in #201
• Update for v_frame 0.4 by @shssoichiro in #202

New Contributors

• @musicinmybrain made their first contribution in #201

Full Changelog: v0.20.0...v0.21.0

• [Breaking] update to v_frame 0.4

• Update decoders for Vapoursynth R73 compatibility

• Significantly improve threading performance by decoding on a separate thread

• Use fixed ffms2 implementation

• Add ffms2 feature for using ffms2 as a decoder

• Update av_decoders crate to 0.5.0 for ffmpeg 8.0 support

• Update av_decoders crate from 0.3.0 to 0.4.0

• Update av_decoders crate from 0.2.0 to 0.3.0

• Make the fields on ScenecutResult public so that it can actually be useful

• [Breaking] Update the analyze_next_frame method to also return the frame scores, if present
• [Breaking] Update the DetectionResults to also return frame scores

• [Breaking] Use av_decoders crate instead of providing our own decoder structs
• [Breaking] Bump minimum rust version to 1.86
• Bump Rust edition to 2024, since the minimum Rust version had to be bumped anyway

• [Breaking] Remove CpuFeatureLevel struct and params. This removes the ability to disable SIMD at runtime, but this isn't a particularly useful feature and added code complexity.
• Refactor SIMD modules

• Readd support for caching intra costs
• Expose structs for advanced API users

• [Breaking/Feature] Add SceneDetectionSpeed::None, which will only place keyframes at fixed intervals without running dynamic detection
• Migrate detection code from rav1e into this crate

• [Breaking] Update ffmpeg-the-third to 3.x
• Update all other dependencies to latest version

• Enable threading for ffmpeg decoder, should greatly improve speed

• [Breaking] Move VideoDetails struct from y4m module to decoder module, since it is not specific to y4m
• Add support for Ffmpeg decoder (requires Cargo ffmpeg feature, disabled by default)

• Add support for Vapoursynth decoder (requires Cargo vapoursynth feature, disabled by default)
• Breaking change required to add a wrapper enum defining which decoder is being used

• Bump rav1e dependency to 0.7

• Bump y4m dependency to 0.8

• Finally release a new version because we can depend on rav1e 0.6.1

• Bump to the final release of rav1e 0.5
• Bump other dependencies to latest versions
• Fix another inconsistency with rav1e's scene detection
• Improve precision of FPS calculation

• Fix an inconsistency with how rav1e's scene detection works
• Fix some CLI help text

• Bump rav1e dependency to 0.5-beta.2, which brings a new, improved scenechange algorithm. Medium is equivalent to the old slow level, but with improvements. The fast level also has improvements. The new slow level is a new algorithm with a higher accuracy than the previous two algorithms.
• The --fast-mode CLI argument is removed in favor of a --speed or -s argument, which takes a 0, 1, or 2 (for slow, medium, or fast). The default is 0 for slow.

• Bump rav1e dependency to 0.5. This should bring significant performance improvements, but may cause breaking changes.

• Bump rav1e dependency to 0.4
• Expose new_detector and detect_scene_changes since these may be useful in some situations to use directly

• Fix compilation on non-x86 targets
• Bump various dependencies

• Improve performance and memory usage

• [Breaking, New Feature] detect_scene_changes returns a DetectionOptions struct, which includes the list of scenecut frames, and the total count of frames in the video. The CLI output will reflect this as well.
• [Breaking] Replace the default algorithm with an 8x8-block cost-based algorithm. This is more accurate in many cases.
• [Breaking] As a result of the above change, now requires nasm for compilation. No action is needed if you use a prebuilt binary.
• [Breaking] Replace the use_chroma option with a fast_analysis option. The new name is more accurate, as the updated algorithm will always analyze only the luma plane.
• [Breaking] Move the progress_callback parameter from DetectionOptions to detect_scene_changes, since it only applies to that interface.
• [New Feature] Expose the SceneChangeDetector struct, which allows going frame-by-frame to analyze a clip. Needed for some use cases. detect_scene_changes is the simpler, preferred interface.
• The library for inputting frame data has been replaced with one that matches rav1e.
• Simplify/optimize some internal code.

• [Breaking, New Feature] Add the ability to pass a progress_callback function to the DetectionOptions.

• [Breaking] Update y4m dependency to 0.5

• Initial release