mirror of
https://github.com/storytold/filmcraft.git
synced 2026-10-27 19:48:38 -06:00
Brandon ThomasandClaude Opus 5.5
d0304c41b8
Parameter sets (VPS/SPS/PPS incl. VUI, scaling lists, short/long-term RPS, tiles, WPP entry points), slice segment headers, POC / RPS / DPB management with bumping, CABAC for all Main/Main10 syntax elements, coding / transform quadtrees, AMP, PCM, transform skip, lossless bypass, intra prediction (35 modes, substitution, filtering, strong smoothing), merge / AMVP / TMVP, 8-tap / 4-tap interpolation, weighted prediction, DCT 4..32 / DST, scaling, deblocking and SAO run row-pipelined, frame-threaded decoding. Syntax tables extracted from the ITU-T H.265 text by tools/extract_tables.py. 41 libx265 / VideoToolbox fixtures bit-exact vs ffmpeg (single and multi-threaded). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
44 lines
1.3 KiB
Rust
44 lines
1.3 KiB
Rust
//! Decode speed (ignored by default; run with
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//! `cargo test --release -p filmcraft-hevc --test perf -- --ignored --nocapture`).
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mod common;
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use filmcraft_hevc::Decoder;
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use std::time::Instant;
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fn bench(data: &[u8], threads: usize, iters: usize) -> (usize, f64) {
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let mut best = f64::MAX;
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let mut frames = 0;
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for _ in 0..iters {
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let mut dec = Decoder::with_threads(threads);
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let t0 = Instant::now();
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frames = dec.decode(data, 0).expect("decode").len() + dec.flush().len();
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best = best.min(t0.elapsed().as_secs_f64());
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}
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(frames, best)
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}
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fn run(name: &str, label: &str) {
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let f = common::fixture(name);
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let Some((hevc, _)) = common::ensure(f) else { return };
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common::check_fixture(name).unwrap();
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let data = std::fs::read(hevc).unwrap();
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let cores = std::thread::available_parallelism().map(|n| n.get()).unwrap_or(1);
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for threads in [1, cores.min(16)] {
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let (frames, secs) = bench(&data, threads, 3);
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println!("{label} ({} KB): {threads} thread(s): {frames} frames in {secs:.3}s = {:.1} fps", data.len() / 1024, frames as f64 / secs);
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}
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}
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#[test]
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#[ignore]
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fn perf_1080p() {
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run("bench_1080p", "1080p Main CRF24 medium");
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}
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#[test]
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#[ignore]
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fn perf_4k() {
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run("bench_4k", "2160p Main10 CRF26 fast");
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}
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