With NVENC registered on Linux, `filmcraft-cli --test cli` aborts in 2 of 45 runs on an RTX 3090
(`malloc(): mismatching next->prev_size`, `malloc(): unaligned fastbin chunk detected`) right
after an export finishes; 0 of 30 runs fail with this reverted.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The NVENC HEVC encoder (Main 8-bit SDR and Main 10 HDR PQ / HLG) was gated to
Windows. It now also runs on 64-bit Linux, on the CUDA device the H.264 encoder
already uses: the H.265 format and HDR probes are registered there and the
HEVC tests run on both systems.
NVENC registration on Linux now happens after the VA-API probe. Started beside
it, the background HEVC probe's first cuInit could deadlock with
libva-nvidia-driver, which calls cuInit from its library constructor under the
loader lock.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Narrations take schema v14 (main's v13 is audio streams): v13_to_v14, docs updated.
- neural-voices is off by default in the desktop app, like whisper; the model download stays
an explicit, confirmed job.
- Removed the debug probe2 test module from tts-text.
- project_subset prunes narrations of items it drops.
- unique_wav_path is bounded (99 999 names) and returns an error instead of looping.
- narration.rs uses web_time::Instant (wasm clock test); tts.* commands get the
"Text to Speech" shortcut category, with es/ja rows for it and Edit Narration.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
8-bit NVENC sessions (H.265 Main, hardware H.264) now take the export's RGBA
frames as ABGR input buffers and NVENC converts them to BT.709 limited 4:2:0
on the GPU, with the same codes as rgba_to_yuv420_8. The CPU conversion ran
on the encode thread, where it competed with the render of the next frames
for the thread pool (about 13 ms per 1080p frame instead of 1.5 ms) and held
NVENC back. A driver that refuses RGB input falls back to the CPU conversion
into NV12. HEVC Main 10 is unchanged.
60 s of a 1080p30 project as H.265 in the app: 18.7 s -> 15.0 s (96 -> 120
fps); headless 30.3 s -> 16.8 s.
Co-Authored-By: Claude <noreply@anthropic.com>
On Unix the benchmark measures the test thread's CPU time, so suite load
does not move it and it keeps running. Without a per-thread CPU clock
(Windows) it falls back to wall time, which is load-dependent and flaky on
shared CI runners; ignore it only there and document how to run it.
The GPU effect-source hunks were dropped in the merge in favour of #376's
fs_fx_source, now on main.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
HDR sequences export as real 10-bit HEVC Main 10 through NVENC where the GPU
reports 10-bit HEVC: float BT.2020 R'G'B' -> rgbf_to_yuv420_10 -> P010 input;
VUI BT.2020 + PQ/HLG; HDR10 mastering-display / content-light as SEI on every
IDR (PQ); colr/mdcv/clli in the sample entry. New register_hdr_probe /
hdr_available in the export crate; macOS and GPUs without 10-bit keep
tone-mapping HDR sequences to 8-bit SDR HEVC. ABI asserts extended and
re-verified against nvEncodeAPI.h 12.1 (0 drift). 8-bit SDR HEVC unchanged;
the two #328 tests that asserted HDR is declined now expect Main 10.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Normalize explicit relink prefixes, compare native paths in portable tests, close fixture sessions before directory moves, and preserve exact GPU effect-source pixel centres. Keep the hardware-dependent mixer benchmark opt-in with its 4x target unchanged.
Shortcut portability changes reused from storytold/filmcraft#37 (bd944ee and f2b36fe). The existing export fix from #282 remains in its original parent commit.
Assisted-by: Codex
- register() asks the HEVC probe on a thread of its own (the first probe is
about half a second: D3D11 device + NVENC session), so the first draw of
Export's format list does not wait for it; tests/nvenc_hevc_warm.rs.
- A machine with no HEVC encoder is not a declined hardware attempt: the
factory returns None without counting `declined`.
- HEVC tests skip only when the probe says there is no HEVC encoder; on a
machine that has one, a configuration NVENC refuses fails the test.
- Wording: NVENC is FilmCraft's only HEVC encoder on Windows (Windows itself
ships others).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
One NVENC session, ring and NV12 path now serve H.264 and HEVC (Codec enum,
Profile::HevcMain). HEVC Main 8-bit 4:2:0 SDR BT.709, MP4/MOV hvc1, parameter
sets only in an hvcC built from the SPS the encoder wrote. The H.265 format is
available through a cached NVENC probe; choosing it is the opt-in, declines are
counted errors. ABI asserts regenerated from nvEncodeAPI.h 12.1 (no drift) and
extended for HEVC; tests, docs and roadmap updated.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Loudness Auto-Match metered every clip as the stereo pair clip_signal
plays, so a mono source (or a mono pick from Modify > Audio Channels /
Breakout to Mono), copied onto both sides, read 3.01 LU louder than the
file and got 3 dB too little gain. BS.1770 and ffmpeg's ebur128 measure
a mono programme as one channel; now so does clip_loudness, through a new
render::audio::clip_is_mono. Stereo and wider sources are unchanged, as
are the export loudness pass and the Meters panel (they measure the real
output mix).
Regression test: the same speech as a 1-channel WAV and as dual-mono
stereo measure 3.01 LU apart, the mono clip agrees with a one-channel
meter over the file within 0.1 LU, and a mono pick counts as mono.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Properties panel: the diamond on a row was the stopwatch (effects.toggleAnimation),
so clicking it on a keyframe dropped every keyframe and kept the value at the
playhead. It is now Add/Remove Keyframe (effects.addKeyframe), as in Premiere:
it turns animation on with a keyframe at the playhead, adds one there, or removes
the one there, and the value falls back to what the remaining keyframes give in
Properties, Effect Controls and the Program monitor. An animated row shows the
navigator (previous / diamond / next); the diamond is filled only while the
playhead is on a keyframe. Crop's diamonds work too (the effect is applied first).
Effect Controls: the keyframe lane has a time ruler (ticks and sequence timecode
over the clip's stretch of the sequence) with the playhead's handle on it; click
or drag the ruler to move the playhead. The playhead is drawn only while it is on
the clip. Both panels share one navigator widget, with automation ids
<panel>.<effect>.<param>.addKeyframe / .prevKeyframe / .nextKeyframe, plus
effectControls.ruler and effectControls.playhead.
Tests: engine add/remove at the playhead with undo, redo and bad parameters;
headless UI tests of the navigator, Crop and the ruler; ruler labels and limits.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
While a value was dragged in Effect Controls or Properties, the Program monitor
kept the picture from before the drag and only caught up when the mouse rested.
Two causes:
- Every step of a drag is a new project revision, so the frame the monitor asks
for is never ready on the refresh that asks for it, and the stand-in lookup
only knew frames of the same revision. The monitor now remembers the frames it
asked for on its latest paused refreshes and, when neither the frame due nor a
cached frame just before it is ready, shows the newest of those that is. A
backward or fast scrub had the same gap and gets the same stand-in. Playback
is unchanged.
- A frame still rendering was cancelled when the same frame was asked for at a
newer revision. With frames slower than a refresh (CPU effects) each one was
thrown away for the next. Such a job now finishes; a request for a different
frame of the view (scrubbing) still cancels it.
perf.stats gains `monitor`: the frame and revision of the picture the Program
monitor shows, against the playhead's frame and the project's revision.
Tests (headless, perf_ui): a parameter changed on every UI pass and a backward
scrub leave the picture at most one step behind; a frame being rendered survives
a request for the same frame at a newer revision.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- filmcraft-tts (feature kokoro): Kokoro-82M on candle, implemented from
the StyleTTS 2 / iSTFTNet / ALBERT papers, config.json and the
checkpoint's tensor shapes; official .pth read with candle's restricted
pickle reader; voice packs from their zip. Neural Voice: tts-text
phonemize -> Kokoro per chunk -> pauses -> pitch via audio-dsp.
- catalog: 9 US English voices (model card grade C+ or better) + CMUdict,
every file pinned to a revision and SHA-256 (336 MB).
- speech: generic download_files (same verified downloader).
- engine: tts.render (background synthesis into Session::tts_cache),
tts.downloadVoices (background job, cancellable), voices list with
package state; feature neural-voices (default on in the desktop app).
- ui: natural/basic voice groups, consent box (size, sources, licences),
download progress + Cancel, synthesis never blocks the window;
ui.set {tts:{...}} for agents.
Measured: Whisper-base WER on 50 original sentences 2.1-3.6 % for all 9
voices (built-in robotic voice 96.6 %); 2.2-2.3x real time on CPU.
Gates: fmt, clippy, layers, assets, wasm pass; tests pass except
shortcuts_tests::assign_reassigns_conflicts_and_undoes (fails on main)
and the frame pool test (flaky under load, passes alone).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Write what a narrator says, pick a voice, pitch and pace, and add it to
the timeline. Selecting a narration clip loads it back into the panel;
Save regenerates it in place as one undo step, keeping the clip's start
and length (longer speech kept whole in the file, shorter speech padded
with silence).
- filmcraft-tts (L2): Voice trait, voice catalogue, pause markers
([pause 1s]), and an original formant synthesizer (Basic Female/Male;
robotic placeholder until the neural voices land).
- project: Narration + Project::narrations (schema v13, no-op migration).
- engine: tts.voices/preview/create/edit/inspect; narrations never
overwrite clips (free targeted track, free track, else a new track).
- ui: Text to Speech panel beside Properties, preview playback,
click-to-edit, automation ids.
Gates: fmt, clippy -D warnings, layers, assets and wasm (rustup
toolchain) pass. Tests: all pass except three that fail identically on
main (61238bf) on this machine: shortcuts_tests::assign_reassigns_
conflicts_and_undoes, gpu fx_tests::gpu_effects_match_cpu_exactly, and
the frame pool test, which passes when run alone.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Merge origin/main into the NVENC branch. #183 already provides the
HardwareEncoding enum, ExportSettings.hardware_encoding, the
hardwareEncoding export param and the Export > Video > Hardware Encoding
checkbox, so the duplicates from this branch are dropped and NVENC uses
them. filmcraft-export is now an all-platform dependency of
filmcraft-platform (VideoToolbox and NVENC both register encoders).
Never-crash fixes in the NVENC backend:
- submit() rejects a driver input pitch narrower than a row (and unlocks
the buffer); fill_nv12 uses get_mut instead of slicing rows.
- composition offsets use saturating math and i32::try_from; frame-rate,
size and timestamp casts are checked; sizes above u16::MAX decline.
- Annex B scanning and NAL type checks use get()/first().
- A failed nvEncOpenEncodeSessionEx that returns a handle destroys it.
ffi.rs carries NVIDIA's MIT notice for nvEncodeAPI.h, listed in
ATTRIBUTION.md under a new "Third-party source code" section.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Extends the Windows backend (#141) to VP9 (profiles 0 and 2) and AV1 (main, 8/10-bit), 4:2:0.
- codecs::hw: FrameStreamInfo (vpcC / av1C): profile, bit depth, chroma, picture size and colour as
the software decoders report them (vp9_color / av1_color are now shared with them), random-access
samples, in-band format changes; StreamInfo lets HybridDecoder handle NAL and frame-coded streams.
- platform: media_foundation::stream (what each codec needs: DXVA profile, MFT request, input
format), MfDecoder generalised; VP9 frames / AV1 temporal units go in as they are; the MFT's
declared picture size (display aperture) is checked against the bitstream's.
- Declined up front: VP9 profiles 1/3, AV1 profiles 1/2, 4:2:2/4:4:4, mono, 12-bit, no codec
extension, no DXVA profile. A key frame of another size or a different sequence header falls back
to the software decoder.
- Tests: bit-exact parity (360p / 1080p / 2160p, seeks, resets, flush, hidden frames), forced
failure, damaged samples and av1C, format change fallback, WebM / Matroska through the media stack.
- Bench: AV1 fixtures with libaom when ffmpeg lacks SVT-AV1.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MMorBHwct72udS2LiC3ZHp
Problem: playback decoded and mixed every ~10 ms device buffer inside the
cpal callback (AAC decode, effects, opening a clip's file at a cut, rayon,
locks). On a loaded Mac any stall missed the device deadline: static and
dropouts, different on every play.
Solution: play_ahead mixes on its own thread into a lock-free ring kept
200 ms ahead; the callback only copies. An underrun plays silence, is
counted, and the mixer skips the same span so sound stays locked to the
picture. Any device width plays the channels it shares with the mix.
perf.stats reports playback.audio (callbacks, underruns, missingFrames,
minLeadMs). The program mix moved to playback_mix so bench_audio can play a
real project through a simulated 48 kHz device and count dropouts.
Context: on a real 22-sequence project, load average 38-58, 15 s per cut:
mixing in the callback overran 8-170 times, mixing ahead 0 (ring never
below 149 ms). The web build keeps mixing in its callback (no threads).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ffmpeg prints "corrupt decoded frame" as a warning, so the oracle's
`-v error -ec 0` decode let a stream with a whole slice missing pass
silently. Switching that decode to `-v warning` is not enough: with
`-ec 0`, ffmpeg 7.1/8.1 flags every picture that has more than one
slice, libx264's multi-slice streams included, while the pixels are
unchanged. That is the 119/120 in #74; the encoder's bitstream is not
at fault (VideoToolbox decodes the same streams bit-identically, and
ffmpeg with strict error detection reports nothing).
The oracle now decodes with ffmpeg's default concealment, `-v warning`
and `-err_detect +crccheck+bitstream+buffer+explode`, fails on any
output or a non-zero exit, and still compares every pixel with the
encoder's reconstruction. A negative control drops and truncates
slices (CAVLC and CABAC, 3 slices) and checks the oracle reports each
one; it fails with the old flags.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Problem: a clip with AAC audio in MP4 whose sample rate differs from the
sequence's (48 kHz clip in a 44.1 kHz sequence) exported with loud
low-frequency thumps, several times full scale, recurring through the clip.
Every exported container was affected (AAC clips them into thumps, PCM
clips at full scale); a WAV export had a single one at the clip's start.
Cause: Mp4Source::audio decodes a window starting at s0, the requested
presentation sample minus the edit-list offset, then resamples it. The
resampler derived its sub-sample phase from s0, so the edit-list offset
(-1024 samples of AAC priming) was applied a second time: the read
position started about 1024 samples before the window, was clamped to
index 0 with a large negative fraction, and linear interpolation
extrapolated a ramp over the first ~940 samples of every request. Export
asks for audio one batch of video frames at a time, so the ramp repeated
at each request. Sources at the sequence rate take the copy path and
were unaffected, as were tracks without an edit list.
Fix: take the phase from the presentation sample the window starts at
(before the edit-list offset is subtracted).
Test: aac_mp4_resampled_reads_follow_the_edit_list
(crates/codecs/tests/mp4_oracle.rs, with `require_ffmpeg!` and the
shared fixture helper as docs/testing.md asks of new oracle tests) reads
an ffmpeg AAC fixture at 44.1 kHz in frame-sized pieces and compares it
with the 48 kHz decode interpolated at the same times (peak was 7.35
against a source level of 0.15 before the fix). docs/testing.md lists it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- New crates/platform (filmcraft-platform, L5): OS media FFI only. The one
crate allowed `unsafe` (own [lints] with unsafe_code = "deny",
#[allow(unsafe_code)] only on the videotoolbox module, SAFETY comment on
every block, safe Result-returning public API). AGENTS.md §0.3 names the
exception; docs/adr/0001-platform-ffi.md records why and the rules.
- VideoToolbox decoder for avcC / hvcC, 8/10-bit 4:2:0 and 4:2:2: session from
the sample entry's parameter sets with hardware required, asynchronous
decode (2 in flight), biplanar CVPixelBuffer copied to planar Yuv8/Yuv16,
reorder buffer of the stream's own depth, RASL skipped after a starting CRA.
Output callback under catch_unwind.
- HybridDecoder: transparent mid-stream fallback to the software decoder
(replays samples since the last restart point, drops already-returned
pictures). New codecs::software_video_decoder (built-in factories only) and
codecs::hw (switch, counters, NalStreamInfo shared with software decoders;
vui_color / sar_par helpers now used by both).
- Settings ▸ Playback ▸ Hardware decoding: Auto / Off (engine applies it to
the codecs switch); desktop app, CLI/MCP and bench call register().
- perf.stats decode.framesDecoded and decode.hardware counters.
- Tests: bit-exact parity with the software decoders (H.264 High, HEVC Main
open GOP, Main 10; resets, reseeks, flushes), forced-failure fallback,
mutation fuzz of samples and parameter sets, cross-platform fallback with a
stand-in decoder, setting Off, HEVC 4:2:2 vs ffmpeg.
- Bench --hw auto|off; results in docs/performance.md (4K CPU/frame
~86-119 ms -> ~4 ms).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
All 27 blend modes now composite on the GPU instead of sending the
whole frame to the CPU.
- render::plan: PlanLayer carries its Blend; plan_frame no longer falls
back to a CPU frame for non-Normal modes. Media, graphic clips,
multicam angles and CPU-rendered layer images (standard effects) keep
their clip's mode; inside a transition the mode is Normal, as in the
CPU reference. execute_cpu composites with each layer's mode.
- gpu: Normal keeps the single fixed-function pass. Dissolve also uses
fixed-function "over": the CPU's 64-bit pixel hash is reproduced in
WGSL on u32 pairs (pattern bit-exact). The other 25 modes copy the
accumulator region under the layer's quad into a backdrop texture and
composite in fs_blend with the CPU math (sRGB-encoded straight colour,
W3C formulas, back to linear, same premultiplied mix and clamping).
- Tests: per-mode GPU-vs-CPU parity (gpu crate: overlapping transformed
layers, partial opacity/alpha, empty/partial backdrop; golden: every
mode through plan_frame incl. an effect layer, blended clips in a
cross dissolve), exact-value edge cases (black/white, Divide by 0,
Dodge/Burn at 0 and 1, zero alpha) within 4.9e-4, Dissolve pattern
exact, off-output layers, quad bounds.
- Bench: new stack3-blend playback scenario (V2 Screen, V3 Overlay);
CPU ms/frame 151-214 -> 86-89, Full 19/173 and 138/54 -> 191/1, 192/0.
- Docs: architecture §5, gpu crate docs, testing, performance.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Lumetri grades PQ / HLG working spaces in their own signal normalised to
HDR White (Basic Correction) / HDR Range (Curves) in cd/m²
(filmcraft_color::GradeSpace): exposure in stops of light, highlights above
HDR White kept, HDR Specular scales them; Rec. 709 unchanged.
- HDR static metadata (mdcv/clli, Matroska MasteringMetadata/MaxCLL/MaxFALL)
on VideoStreamInfo::hdr; PQ media use MaxCLL / mastering peak as the
BT.2390 source peak; media.colorInfo reports it.
- HSL Secondary Refine: Denoise (median of the key) and Blur (Gaussian).
- Lumetri Presets (18 original looks in 4 folders) with thumbnails rendered by
our Lumetri on a procedural preview picture; Effects panel rows and a
thumbnail grid when wide; lumetri.presets / applyPreset / presetThumbnails.
- Color Match: Comparison View toggle; Apply Match uses its reference frame.
- Goldens lumetri_hdr_pq and lumetri_presets_grid; D-Log M stays unsupported
(no published formula).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
List / Icon / Freeform views, Metadata Display, view presets, font size,
Preview Area, bin tabs and windows, hover-scrub In/Out; Media Browser tree,
Favorites, history, file types, thumbnails, Edit Columns, import and drag.
Engine: project_panel and media_browser modules, Services::list_entries.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Interleaved before/after bench (decode, playback incl. 1/4 and draft cases,
4K cold seeks) and decoder cycle counts in docs/performance.md; threading,
draft mode and 4K numbers in crates/h264/README.md; bench cases in
docs/testing.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
5.1 / multichannel:
- audio-dsp::channels: layouts (L R C LFE Ls Rs), ITU-R BS.775 up/downmix, 5.1 Mixdown Types,
equal-power 5.1 panner (puck, Center %, LFE).
- Mixer graph buses are 2 or 6 channels wide; 5.1 tracks/submixes/Mix; strips feeding a 5.1 bus
use the 5.1 panner (lanes pan51.x/y/center/lfe stored in MixerStrip::lanes, no schema change);
5.1 strips fold into stereo buses with BS.775; per-channel meters; clip effects on 6 channels.
- file.newSequence {mix, trackType}, sequence.settings {mix}; playback honours the 5.1 Mixdown
Type preference on stereo devices and plays 6 channels on 5.1 devices.
- Export Audio Channels 5.1: WAV WAVE_FORMAT_EXTENSIBLE (mask 0x3F), QuickTime PCM with a chan
atom, AAC channel configuration 6 (reordered to C L R Ls Rs LFE).
- Track Mixer: 5.1 panner puck with Center/LFE, N-channel meters, Show/Hide Tracks, Meter
Input(s) Only; transport record button runs voice-over.
Voice-over: engine AudioInput trait + SyntheticInput, cpal input in the app, audio.voiceover.*
commands (punch-in, pre/post-roll, countdown cues, WAV next to project / scratch disk, one undo
step), track header mic button and Voice-Over Record Settings dialog.
Remix: beat tracking + chroma/cepstra self-similarity planner in audio-dsp, hidden `remix` clip
effect holding the plan, render::remix playback with equal-power crossfades, clip.remix.*
commands, Remix tool and Remix Properties dialog.
Clip Mixer automation: per-track Latch/Touch/Write (clipMixer.setMode/touch/release) heard live
and written as thinned clip Volume/Panner keyframes at the end of the pass.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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