Seven generated signals (sine, pink noise at 48/96 kHz, speech-like at
48/44.1 kHz, gated stereo with silence and sub-gate passages, fs/4
inter-sample peak) written as float WAV and measured by LoudnessMeter
and ffmpeg ebur128 (metadata, 3 decimals per 100 ms). Tolerances: M/S
+-0.1 LU every 100 ms, I +-0.1 LU, LRA +-0.5 LU, true peak +-0.2 dB.
Measured: M/S <= 0.0005, I <= 0.007, LRA <= 0.04 LU, TP <= 0.045 dB.
On the fs/4 tone ffmpeg's true peak is +0.6 dB above the analytic
value, so that case is checked against the analytic peak (ours -0.053).
testkit gains a float WAV writer.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
crates/golden (test-only, L3): nine procedural 320x180 scenes (transform
and opacity, blend modes, Gaussian Blur, Lumetri basic, Crop, Cross
Dissolve / Dip to Black / Wipe mid-transition, timecode/clip-name text)
rendered on the CPU and compared with committed goldens (PSNR >= 45 dB,
max <= 12, p99 <= 2); FILMCRAFT_BLESS=1 regenerates them with
attribution sidecars. testkit::golden adds PNG I/O, diff metrics and
failure images. The same scenes are composited on the GPU and compared
with the CPU.
GPU parity exposed a real bug: GpuCompositor cached uploads by
pixel-buffer address without owning the buffer, so a new frame
allocated at a freed frame's address was drawn with a stale texture
(whole wrong frames, PSNR ~12 dB). The cache now keeps the buffer
alive; regression test upload_cache_keeps_buffers_alive.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Runs each crate's ignored generate_fixtures test (h264, hevc, isobmff,
matroska, prores) - the same generators the oracle tests use - and
prints made/cached/skipped per fixture plus a summary. Optional crate
filter: cargo xtask fixtures hevc prores.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
New dev-dependency-only crate crates/testkit (L0, no FilmCraft deps):
FILMCRAFT_FFMPEG/FILMCRAFT_FFPROBE, then PATH (incl. .exe), then known
dirs; SKIPPED lines and FILMCRAFT_REQUIRE_ORACLES=1 to make skips fail;
require_ffmpeg!/require_ffprobe!/require_oracles!; fixtures_dir() under
<workspace>/target/fixtures with per-thread temp names and atomic
generation. Oracle helpers in aac, opus, h264, hevc, h264enc, isobmff,
matroska, prores and export migrated (codecs left on its local lookup).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Brandon Thomas