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Get Started with Sequency

Launch Sequency with confidence by setting permissions, confirming detections, and running a quick test export.

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Follow these steps the first time you launch Sequency. Setting up file permissions early prevents interruptions later when you export.

  1. Launch the app. The window opens with the input sidebar on the left and the Settings, Queue, and Console tabs on the right.
  2. Choose an input type. Pick Image Sequence for numbered frames in a folder, or Video File for a single movie or camera-original clip.
  3. Grant file access when prompted. Sequency stores security-scoped bookmarks so queued jobs can continue running.
  4. Confirm what Sequency detected. Check the sidebar for frame counts, resolution, and any access warnings.
  5. Open the Settings tab. Adjust the container, codec, sequence format, resolution, and color settings before exporting.
  6. Run a short test export. Click Export Now…, choose a destination, and verify the result to ensure permissions and settings are correct.
Once you complete a successful test, explore Import Image Sequences or Video Files and Export or Queue Jobs for deeper workflows.

Import Image Sequences or Video Files

Bring in numbered image sequences or standalone video files and resolve access requests along the way.

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Image Sequences

  1. Select Image Sequence in the input picker.
  2. Click Select Sequence Folder or File and choose either a folder or a representative frame (PNG, JPG, EXR, TIFF, TGA, ARI, or ARX).
  3. Review the detected sequences list. Sequency uses smart sorting and pattern matching to group frames.
  4. If you see Directory Access Required, click Grant Access…. This is required for Sequency to read sequences outside of standard folders, continue queued jobs, or inspect professional sequence metadata.
  5. Optional: adjust Source FPS if the sequence timing isn't automatically detected.

Drag a folder onto the app to scan it instantly. Sequency will detect all contained sequences and list them in the sidebar.

Video Files

  1. Select Video File in the input picker.
  2. Click Select Video File and choose a movie or camera file (.mov, .mp4, .m4v, .mxf, or .braw).
  3. Confirm the filename and resolution displayed below the picker.
  4. Keep the file in place if you plan to create multiple exports from it; Sequency stores a bookmark to maintain access.

Camera and MXF Files

Sequency supports common editorial and broadcast files, plus camera-native workflows that need dedicated decoders:

  • ARRI MXF — ARRIRAW, ARRICORE, ARRIRAW HDE, ALEXA 35, ALEXA 35 Extreme, AMIRA, ALEXA 265, and related ARRI MXF clips.
  • ARRI image sequences — Numbered .ari and .arx frame sequences.
  • Blackmagic RAW.braw clips with Blackmagic SDK-backed decoding and audio export for playable outputs.
  • Broadcast MXF — ProRes, FFV1, DNxHD/VC-3, AVC-Intra, MPEG-2 IMX, DV50, and Sony XAVC-style MXF files.

If a camera file needs special handling, Sequency keeps the workflow in the same place: import the source, confirm what was detected, then choose the output you need. ARRI review-video imports default to the SDK-managed Rec.709 / D65 / BT.1886 target, while scene-linear EXR workflows use ACES handoffs prepared from the detected source.

You can keep both sequence and video jobs within the same project. Switch input types at any time—Sequency remembers your last choice for each mode.

Configure Output Settings

Choose containers, codecs, frame rates, and color conversions before you export or build a queue.

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All export controls live in the Settings tab. Adjust them before exporting or queueing jobs.

Choose a Container

  • Video File — Creates a .mp4 (H.264 or HEVC), .mov (ProRes), or .mkv (VP9) file when supported by the selected source.
  • Image Sequence — Writes processed frames into an empty folder. Supported formats include PNG, JPG, EXR, TIFF, and TGA.

Pick a Codec (Video File Container)

  • H.264 — Balanced quality and size for previews or web delivery.
  • HEVC — Better compression than H.264; requires modern playback hardware.
  • ProRes 422 — Editorial mezzanine format with high quality.
  • ProRes 4444 — Maximum fidelity with support for transparency (alpha channel).
  • MKV with VP9 — MKV container with VP9 encoding (WebM compatible). Choose from Quality/Balanced/Fast/Realtime presets. MKV is for standard video sources, not ARRI or BRAW custom decoder inputs.

See Codecs and Containers Explained for detailed comparisons.

Frame Range Selection

Export partial sequences instead of entire files. Set a custom Start Frame and End Frame to export only the range you need. Useful for testing, retakes, or delivering specific shots from longer sequences.

Sequence Options

  • Compression — Adjusts the file size vs. encoding speed tradeoff for sequence exports. EXR supports professional compression options including DWAA and DWAB.
  • Bit Depth — 8-bit for standard workflows, 16-bit for high-dynamic-range detail (available for PNG, EXR, and TIFF).
  • Preserve Alpha Channel — When enabled, transparency is kept in the export. When disabled, images are flattened over a black background. Available for PNG, EXR, TIFF, TGA, and ProRes 4444.
  • Start Frame — Set the first exported number (e.g., 1001). Sequency keeps consistent padding.
  • Multichannel EXR Splitting — Automatically separates render passes (RGBA, Depth, Normals, etc.) into individual folders.

See Codecs and Containers Explained for detailed comparisons.

Resolution

Turn on Custom Resolution to override the detected width and height. Leave it off to preserve the source dimensions.

Frame Rate

Use the slider or numeric field (1–120 fps) to control playback speed. Drop-frame presets (23.976, 29.97, 59.94) provide broadcast-compatible timing.

Desired Duration

Enter a duration in seconds to retime the sequence smoothly. Leave 0 to keep the original runtime.

Bitrate and CRF (Video File Container)

  • Bitrate — Higher values (Mbps) yield larger files with more detail.
  • CRF — Quality dial for H.264/HEVC. Lower numbers (18–24) mean higher quality.

Audio Options (Video File Container)

Preserve, convert, or strip audio tracks. When a source has playable audio, Sequency prepares the same safe default for the app and CLI instead of silently stripping audio.

  • Copy — Passthrough audio from the input video without re-encoding.
  • AAC — Compressed audio, good for web delivery.
  • PCM — Uncompressed audio for maximum quality.
  • No Audio — Strip audio from the export.

Color Space Conversion

Automatic engine selection: ColorSync for sRGB/P3/Rec.709, OCIO for ACES and camera logs. Enable conversion when delivering to a different gamut or working with VFX pipelines. Learn more in Color Management and ACES.

Export or Queue Jobs

Export immediately or batch multiple jobs with clear tips for managing the Sequency queue.

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Export Now

  1. Adjust all settings in the Settings tab.
  2. Click Export Now….
  3. Pick a destination. Video exports save as .mp4, .mov, or .mkv; image sequence exports require an empty folder.
  4. Watch the inline progress bar and confirmation banner.

Pause and Resume Exports

Never lose progress on long renders. During any export, click Pause to temporarily halt processing. Click Resume to continue from exactly where you left off. This is especially useful for overnight renders or when you need to free up system resources temporarily.

Add to Queue from Image Sequences

  1. Select one or more sequences in the sidebar.
  2. Click Add to Queue to open the Batch Export sheet.
  3. Choose an output folder and optional filename suffix (default `_converted`).
  4. Confirm to add each selection as a queue item.

Add to Queue from Video Files

  1. Load the video input.
  2. Click Add to Queue.
  3. Select a destination file (video) or folder (image sequence). The job is added immediately.

Manage Queue Items

  • Open the Queue tab to see status badges and progress bars.
  • Press Start Queue to process jobs sequentially.
  • Use Clear All to remove pending jobs or the × button to cancel an individual item.
  • Image sequence jobs display frame counts when the total is known.
Need help with errors or permissions? Go to Monitor Progress and Resolve Issues.

Agent Workflow and CLI

Install the Agent Tools package, use the package CLI, and understand the agent-safe conversion workflow.

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Sequency includes a command-line tool for Terminal users and a structured workflow for AI assistants. Both use the same conversion engine as the app, so the safest path is always: inspect the source, preview the route, export, then verify the output.

Install the Agent Tools Package

  1. Open Sequency.
  2. Open the Sequency app menu and choose Install Agent CLI.
  3. Sequency verifies your App Store or TestFlight app transaction, copies a short-lived install code, and opens the private install page.
  4. Enter the code on the website to download the signed and notarized Sequency Agent Tools package.
  5. Run the .pkg installer. It installs /usr/local/bin/sequency-cli and lets you choose optional agent skill packages.
  6. Restart or reload the assistant if it was already open.
  7. Ask naturally, such as “Use Sequency to inspect this folder and make a ProRes preview.”

The app does not download, unzip, or install executable CLI payloads inside its sandbox. Installation is handled by the notarized macOS package, and normal commands run through the package-installed /usr/local/bin/sequency-cli.

What the Optional Agent Packages Do

  • Codex — Installs the Sequency skill into Codex skill roots. Use /skills, type $sequency when available, or ask for a Sequency conversion naturally.
  • Claude Code — Installs a Sequency skill and a /sequency command.
  • Gemini CLI — Installs a Gemini extension with a /sequency command.
  • VS Code Copilot — Adds Sequency instructions and a /sequency prompt to the selected workspace without replacing existing nested GitHub instruction folders.
  • Antigravity — Installs Sequency as a native SKILL.md skill folder in the supported Antigravity skill roots.
  • Templates — Exports skill and prompt files for review or manual installation when you do not want the installer to write them directly.
Reinstalling is safe. The package replaces older Sequency aliases instead of leaving duplicate skills behind, while preserving existing VS Code Copilot instruction and prompt folders.

Use the CLI Yourself

After installation, call the package command directly from Terminal or from automation:

/usr/local/bin/sequency-cli <command> [options]

The external CLI validates the installed Sequency app before normal commands run. Local developer builds and tests may bypass that check only with the documented development environment variable.

Main Commands

The main commands are:

  • agent — Checks readiness and prints the machine-readable command contract.
  • info — Inspects files, scans image-sequence folders, and lists formats or color spaces.
  • convert — Runs one conversion.
  • batch — Runs multiple jobs from a JSON config file.

The Agent-Safe Workflow

  1. Doctor: confirm this session can write video and image files.
  2. Manifest: read the current list of supported codecs, containers, image formats, audio options, camera controls, and flags.
  3. Info: inspect the actual source before choosing settings.
  4. Dry run: preview the route as JSON before writing anything.
  5. Export: run the real conversion.
  6. Verify: check that the output file or image-sequence folder was created and is usable before calling the job done.
/usr/local/bin/sequency-cli agent doctor
/usr/local/bin/sequency-cli agent manifest
/usr/local/bin/sequency-cli info --file "/path/to/source.mxf" --json
/usr/local/bin/sequency-cli convert --input "/path/to/source.mxf" --output "/path/to/review.mp4" --codec h264 --dry-run --json
/usr/local/bin/sequency-cli convert --input "/path/to/source.mxf" --output "/path/to/review.mp4" --codec h264 --json

For BRAW, ARRI, custom MXF, MKV, and EXR sources, the dry-run JSON is especially useful. It shows prepared camera settings, color spaces, alpha behavior, frame size, and audio behavior before the export starts.

Camera and Audio Defaults

The CLI prepares camera and audio settings the same way the app does after probing the actual source. This prevents automation from guessing at BRAW, ARRI, MXF, or EXR defaults.

  • ARRI review video defaults to the SDK-managed Rec.709 / D65 / BT.1886 render target for native-parity exports.
  • ARRI scene-linear EXR dry-runs report ACES2065-1 to ACEScg with ARRI camera settings in the route summary.
  • BRAW scene-linear EXR defaults to ACES2065-1 to ACES2065-1, matching the Blackmagic SDK's ACES AP0 handoff unless you explicitly choose another output.
  • Audio-capable sources preserve the app's playable audio default unless you pass --audio noAudio. Dry-run and completion JSON include the prepared audioOption.
If an AI agent reports a camera source as generic avfoundation or loses cameraSettings, rerun info --json and the dry-run from a host-permitted session before trusting that route.

Useful Human Terminal Examples

See what Sequency can do

/usr/local/bin/sequency-cli --help
/usr/local/bin/sequency-cli info --formats
/usr/local/bin/sequency-cli info --color-spaces

Inspect a file or sequence folder

/usr/local/bin/sequency-cli info --file "/path/to/source.mov"
/usr/local/bin/sequency-cli info --scan "/path/to/frames"

Make a review video from frames

/usr/local/bin/sequency-cli convert --input "/path/to/frames" --output "/path/to/review.mov" --codec ProRes_422

Export frames from a video

/usr/local/bin/sequency-cli convert --input "/path/to/source.mov" --output "/path/to/output_frames" --container imageSequence --format png

Preview a conversion without writing files

/usr/local/bin/sequency-cli convert --input "/path/to/source.braw" --output "/path/to/review.mp4" --codec h264 --dry-run --json

Important CLI Options

  • --container videoFile|imageSequence chooses whether the output is a movie file or a numbered frame folder.
  • --codec h264|hevc|ProRes_422|ProRes_4444|mkv chooses the video codec.
  • --format jpg|png|tiff|tga|exr chooses the image format for image-sequence output. It is not used for MP4 or MOV.
  • --audio noAudio|copyFromSource|aac|pcm controls audio for video outputs. Do not choose noAudio unless you want silence.
  • --preserve-alpha true keeps transparency when the chosen format supports it.
  • --exr-compression zip|piz|dwaa|dwab and the other EXR compression names control OpenEXR output size and speed.
  • --braw-decode-intent and --arri-decode-intent control camera-native decoding when you need to override the safe defaults.
  • --json makes output easier for agents and scripts to read.

Batch Jobs

Use batch when you have many exports to run from a JSON file. Batch files can define default settings once, then override individual jobs as needed.

/usr/local/bin/sequency-cli batch --config jobs.json --dry-run
/usr/local/bin/sequency-cli batch --config jobs.json --continue-on-error

How to Read Errors

For normal human terminal use, Sequency prints an error plus a “How to fix” line. For agents and scripts, add --json. JSON errors include a code, message, exit code, and remediation so the assistant can choose the next step without guessing.

{
  "status": "error",
  "error": {
    "code": "inputNotFound",
    "message": "Input was not found.",
    "exitCode": 2,
    "remediation": "Check the path and run info or dry-run again."
  }
}
Sandbox note: Some AI agent sessions need permission before macOS video or image-writing services will work. If agent doctor reports a degraded writer probe, rerun the doctor and real export with host permission before assuming Sequency itself is broken.

Codecs and Containers Explained

Compare video, image sequence, ARRI, and BRAW options so you always pick the right format for delivery.

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Containers vs. Codecs

A container (.mp4, .mov, .mxf, .mkv, .braw, or a folder of image sequence files) wraps your media so other software can open it. A codec defines how the video inside that container is compressed.

Sequency chooses the correct container for each codec: H.264 and HEVC export to .mp4, ProRes exports to .mov, VP9 exports to .mkv (WebM compatible), and image sequence exports create numbered folders.

At-a-Glance Format Support

Use these quick checks when you are deciding whether Sequency is the right tool for a source:

  • ARRI MXF
  • ARRIRAW
  • ARRICORE
  • ARRIRAW HDE
  • .ari
  • .arx
  • BRAW
  • MXF
  • MOV
  • MP4
  • MKV / VP9
  • EXR
  • PNG
  • TIFF
  • TGA
  • JPG

ARRI and BRAW Camera Originals

Sequency can read camera-native files that normal macOS media tools may not decode on their own.

  • ARRI MXF — ARRIRAW, ARRICORE, ARRIRAW HDE, ALEXA 35, ALEXA 35 Extreme, AMIRA, ALEXA 265, and related ARRI MXF sources.
  • ARRI frame sequences — Numbered .ari and .arx folders for frame-by-frame ARRI workflows.
  • Blackmagic RAW.braw clips, including scene-linear EXR workflows and playable video exports with audio when the clip contains audio.

For scene-linear VFX work, ARRI and BRAW sources can be exported as OpenEXR sequences for compositing. ARRI scene-linear EXR exports prepare an ACES2065-1 to ACEScg route, while BRAW scene-linear EXR exports default to ACES2065-1 to ACES2065-1. For review, camera originals can be exported to standard video formats such as H.264, HEVC, or ProRes. MKV/VP9 is intended for standard video sources and is not offered for ARRI or BRAW custom decoder inputs.

MXF Professional Broadcast Support

Sequency also supports MXF (Material eXchange Format), the professional broadcast container standard. MXF files from cameras and NLEs are supported with codecs such as:

  • FFV1 — Lossless archival codec
  • ProRes — Full support for ProRes 422 and ProRes 4444
  • MPEG-2 IMX — Broadcast standard format
  • DV50 — Professional DV format
  • DNxHD/VC-3 — Avid broadcast codec
  • AVC-Intra — Descriptor-driven support for Panasonic cameras

That includes Sony XAVC-style MXF files, Adobe Premiere DNxHD exports, and professional broadcast IMX workflows.

H.264 (AVC)

Widely supported and efficient. Pick H.264 for previews, client reviews, or web uploads. Increase the bitrate or lower the CRF value when the footage contains fast motion or fine detail.

HEVC (H.265)

Delivers similar quality to H.264 at roughly 30–50% smaller file sizes. Requires modern playback hardware (macOS 10.13+, iOS 11+, many recent TVs). Avoid if your audience uses older systems.

ProRes 422

An Apple mezzanine codec designed for editorial workflows. It balances high fidelity with manageable file sizes and is ideal for round-tripping between professional NLEs.

ProRes 4444

The highest-quality ProRes flavor with support for transparency (alpha channels). Choose this for compositing, VFX, or archival masters where color precision matters most.

MKV with VP9

MKV container with VP9 encoding (WebM compatible). VP9 delivers excellent compression efficiency, especially for web delivery. Choose from four speed presets:

  • Quality — Best visual fidelity, slower encoding.
  • Balanced — Good compromise between quality and speed.
  • Fast — Faster encoding with acceptable quality.
  • Realtime — Maximum speed for quick previews.

EXR Sequence

A professional OpenEXR image sequence format. Supports 16-bit half-float precision, multi-channel data, and advanced compression like DWAA and DWAB. Ideal for VFX pipelines and ACES workflows.

Multichannel EXR Splitting

When working with multichannel EXR files (such as those from 3D renders), Sequency can automatically separate render passes into individual folders. This includes common passes like:

  • RGBA — Beauty/color pass.
  • Depth — Z-depth for depth of field effects.
  • Normals — Surface orientation data.
  • Other custom passes — Any additional channels in your EXR.

PNG, JPG, TIFF, and TGA Sequences

  • PNG — Lossless, widely compatible, and supports 8-bit or 16-bit color.
  • JPG — Smaller, broadly compatible files for lightweight previews when alpha and high bit depth are not needed.
  • TIFF — High-quality uncompressed or lossless format often used for printing or archival.
  • TGA (Targa) — Common in retro gaming and legacy VFX pipelines; supports 8-bit alpha.
Transparency: Use ProRes 4444, EXR, PNG, TIFF, or TGA if you need to preserve the alpha channel in your export.

Frame Rates and Timing Basics

Understand how frame rate, desired duration, and source hints affect timing inside Sequency.

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Common Frame Rates

  • 24 fps — Film-style motion.
  • 25 fps — PAL broadcast regions.
  • 30 fps — Traditional NTSC video and many web videos.
  • 23.976, 29.97, 59.94 fps — Drop-frame broadcast standards. Sequency offers presets.
  • 48, 50, 60+ fps — High-frame-rate playback or smooth slow motion.

Changing the Frame Rate

Adjusting Output Frame Rate changes how quickly frames play back. Keep it equal to the source to maintain the original duration.

Desired Duration

Enter a target runtime in seconds to have Sequency retime frames evenly. Example: a 240-frame sequence at 24 fps lasts 10 seconds. Setting the duration to 5 seconds doubles the playback speed; setting it to 20 seconds slows it to half speed.

Source Frame Rate Hint

The Source FPS field in the sidebar helps the sequence detector when frames lack metadata. Adjust it for custom renders so the app interprets timing correctly.

If a delivery platform specifies a frame rate, match that value. When in doubt, keep the original frame rate to avoid unexpected motion changes.

Color Management and ACES

Understand how Sequency routes between ColorSync and OCIO to keep renders accurate from EXR to delivery.

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Hybrid Color Architecture

Sequency uses an intelligent dual-path engine to handle color conversions. The app automatically detects the optimal path based on your source and destination color spaces:

  • Apple ColorSync (Core Image) — Used for standard conversions (sRGB, Display P3, Rec.709). This path is natively optimized for macOS, offering the fastest performance with zero GPU overhead.
  • OpenColorIO (OCIO) — Used for professional color science that ColorSync can't handle. This includes ACES workflows, camera log formats (ARRI LogC3/LogC4, Blackmagic Design Film, Sony S-Log3, RED Log3G10), and custom OCIO configs. This path is GPU-accelerated via Metal for maximum precision.

When to Enable Color Conversion

Leave Enable Color Space Conversion off when your source already matches the delivery color space (for example, an sRGB render destined for the web). Turn it on when you need to convert EXR or wide-gamut renders to a standard such as Rec.709 or Display P3.

Input vs. Output Color Space

Input Color Space tells Sequency how to interpret pixels before processing. Sequency automatically detects profiles from file metadata, but you can override them manually. Output Color Space sets the target gamut for the export.

VFX & ACES Workflows

Sequency is optimized for linear-light VFX pipelines. When working with EXR, ARRI, BRAW, or ProRes 4444 sources, you can choose from several ACES and Log presets:

  • ACEScg & ACES 2065-1 — Standard spaces for CG rendering and archival.
  • ACEScc & ACEScct — Logarithmic spaces for color grading.
  • Camera Log — ARRI LogC3/LogC4, Blackmagic Design Film, Sony S-Log3, and RED Log3G10 support for normalizing camera footage.

For EXR exports, Sequency uses the NativeEXR/OpenEXR library so image sequences, ARRI, and BRAW scene-linear workflows keep professional precision during conversion. ARRI native-parity review exports use the SDK's Rec.709 / D65 / BT.1886 render target, ARRI scene-linear EXR exports prepare an ACES AP0 handoff into ACEScg, and BRAW scene-linear EXR exports preserve the SDK's ACES 2065-1/AP0 handoff by default.

Tips for Best Results

  • Match the output color space to the software that will receive the export.
  • Use wide-gamut codecs like ProRes 4444 when targeting HDR or film finishing.
  • If colors look muted, double-check the input profile and confirm your playback app honors embedded color profiles.
For troubleshooting steps, see Monitor Progress and Resolve Issues.

Monitor Progress and Resolve Issues

Track progress, handle queue hiccups, and resolve permissions or color surprises quickly.

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Track Progress

  • The Settings tab shows a progress bar and Pause/Resume/Stop controls for the active export.
  • Completion cards confirm whether an image sequence or video finished successfully.
  • The Queue tab displays status badges, frame counts, and per-item controls.
  • The Console tab lists detailed logs you can copy for support.

Permission Errors

If you see Export Unavailable or Directory Access Required, click Grant Access… and re-authorize the folder. This ensures Sequency can write output files and read security-scoped media.

Two-Step Conversion

When Sequency detects a problematic source codec (like ProRes 4444 XQ or 10-bit RGB) that macOS might fail to transcode directly, it automatically triggers a Two-Step Conversion. It first creates a ProRes intermediate, then converts that to your final format, ensuring a successful export despite complex source data.

Image Sequence Destination Already Contains Files

The image sequence exporter requires an empty folder to prevent overwriting existing frames. Choose a new folder or clear the old files before retrying.

Unexpected Color or Gamma

  • Verify the input color space matches your source media (for example ACEScg for EXR, ARRI LogC for ARRI, or Blackmagic Design Film for BRAW).
  • For ARRI review exports, confirm whether you intended the SDK Rec.709 / D65 / BT.1886 target or a scene-linear ACES EXR route.
  • For BRAW scene-linear EXR exports, expect the default route to preserve ACES 2065-1/AP0 unless you explicitly choose another output space.
  • Confirm your playback tool (VLC, QuickTime, Resolve) honors the embedded color profile.
  • Check if Preserve Alpha Channel should be enabled or disabled for your specific delivery.

CLI or Agent Reports the Wrong Route

Camera-native files need host permission for reliable probing. If an AI agent reports an ARRI or BRAW source as generic avfoundation, loses camera settings, or shows unexpected audio behavior, rerun /usr/local/bin/sequency-cli agent doctor, info --json, and a --dry-run --json conversion from a host-permitted terminal session.

Exports Stuck in Queue

  • Make sure you clicked Start Queue.
  • Ensure source and destination drives remain mounted and writable.
  • Check the Console tab for errors; failed jobs remain in the list so you can retry.
Unsure about terminology? Consult the Glossary of Common Terms.

Glossary of Common Terms

Look up key video and Sequency terminology when you need a fast refresher.

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ACES
Academy Color Encoding System, a wide-gamut standard used for VFX and finishing. Sequency supports ACEScg, ACES 2065-1, ACEScc, and ACEScct.
Alpha Channel
The component of an image that stores transparency information, allowing for compositing over other layers.
ARI / ARX
ARRI frame-sequence formats. Sequency can import numbered .ari and .arx sequences for ARRI image workflows.
ARRICORE / ARRIRAW
ARRI camera-native formats carried in MXF files. Sequency uses ARRI-specific decoding for these sources before exporting to review video or image sequences.
Agent Tools Package
The signed and notarized macOS installer that installs /usr/local/bin/sequency-cli plus optional Codex, Claude Code, Gemini CLI, VS Code Copilot, and Antigravity support files.
BRAW
Blackmagic RAW camera media. Sequency can import .braw clips and export them to playable video or scene-linear image sequences.
Bit Depth
The number of bits per channel. Higher values preserve more tonal detail.
Bitrate
The amount of data written per second in a video file. Higher bitrates generally increase quality and size.
Codec
The compression algorithm used inside a container.
Container
The file wrapper that holds audio, video, and metadata (for example .mp4 or .mov).
CRF
Constant Rate Factor—a quality dial for H.264/HEVC encoding. Lower values mean higher quality.
Drop-frame Rate
A slightly lower-than-integer frame rate (23.976, 29.97, 59.94) that keeps timecode aligned with the clock.
DWAA / DWAB
High-efficiency lossy compression types for OpenEXR files that maintain excellent visual quality at small file sizes.
EXR
A high-dynamic-range image format (OpenEXR) widely used in 3D and compositing pipelines. Sequency handles all standard compression types via the NativeEXR library.
Frame Rate
The number of frames displayed per second during playback.
NativeEXR
The integrated OpenEXR 3.2.1 library used by Sequency for high-performance reading and writing of professional EXR files.
Image Sequence
A folder of numbered images, one for each frame. Sequency supports PNG, JPG, EXR, TIFF, TGA, ARI, and ARX sequence inputs, and can export PNG, JPG, EXR, TIFF, and TGA sequences.
ProRes
Apple’s mezzanine codec family designed for professional production.
Security-Scoped Bookmark
A macOS permission token that lets sandboxed apps re-open previously authorized files.
Source FPS
The original frame-per-second value for a sequence, used to interpret timing.
Two-Step Conversion
A reliability feature in Sequency that automatically uses a ProRes intermediate to prevent export errors with problematic source codecs.