Video transforms

Reference for the video transforms Dreadnode ships for multimodal red teaming - frame injection, distributed payloads and overlays, temporal ordering and sampling, and temporal distortion effects.

Video transforms operate on the frame sequence, so they cover both per-frame spatial edits and temporal (frame-ordering) manipulations. A request refused as text may be complied with when it is distributed across video frames.

Frame injection

Transform	What it does	Key params
`video_frame_inject`	Embed a payload in frames (stego/overlay/subliminal)	`payload`, `method`, `frame_interval`
`subliminal_frame`	Insert a brief flash frame carrying text	`payload`, `insert_at_frame`
`keyframe_replace`	Replace a single (sampled) frame with a payload frame	`payload`, `frame_index`
`scene_cut_inject`	Splice a run of payload frames at a cut	`payload`, `index`, `n_frames`
`replace_with_color_frames`	Overwrite a run of frames with solid color	`start`, `count`, `color`
`video_metadata_inject`	Inject into a metadata field	`payload`, `field`

Distributed payload and overlays

Transform	What it does	Key params
`per_frame_text_scroll`	Scroll a payload across frames (marquee)	`payload`, `speed_px`
`ghost_overlay`	Alpha-blend a faint payload across all frames	`payload`/`overlay`, `opacity`
`letterbox_caption`	Draw a letterbox bar with static caption	`caption`, `position`

Temporal ordering and sampling

Transform	What it does	Key params
`temporal_shuffle`	Reorder frames (whole or windowed)	`window`, `seed`
`frame_dropout`	Drop frames (hold or remove)	`drop_ratio`, `mode`
`frame_reverse`	Play the sequence backwards	-
`freeze_frame`	Repeat one frame to stall	`frame_index`, `hold`
`loop_frames`	Concatenate the sequence to itself	`count`
`frame_rate_up` / `frame_rate_down`	Duplicate or decimate frames	`factor`

Temporal distortion

Transform	What it does	Key params
`frame_brightness_flicker`	Per-frame brightness flicker	`depth`, `period_frames`
`strobe`	Replace every Nth frame with a flash	`period`, `color`
`rolling_temporal_jitter`	Horizontal shift ramping frame-to-frame	`max_shift`
`motion_smear`	Blend each frame with its predecessor	`weight`
`frame_interpolate_blend`	Insert cross-fade frames	`steps`
`temporal_noise`	Independent per-frame noise	`scale`, `seed`
`frames_from_image_transform`	Lift any image transform to all frames (SDK-only)	`image_transform`, `frame_interval`

from dreadnode.transforms import image, video

# Concise video-attack stack: sampled-keyframe swap + distributed payload + temporal disruption.
transforms = [
    video.keyframe_replace("INJECT", frame_index=0),
    video.per_frame_text_scroll("secret instruction"),
    video.temporal_shuffle(seed=0),
    video.frames_from_image_transform(image.fog()),  # apply an image corruption to every frame
]

Additional temporal effects

Transform	What it does	Key params
`frame_jitter`	Independent random spatial shift per frame (shake)	`max_shift`, `seed`
`color_flicker`	Cycle a per-frame hue shift (chromatic flicker)	`depth`, `period_frames`
`stutter`	Randomly repeat frames (judder)	`repeat_ratio`, `seed`
`reverse_frame_segments`	Reverse frame order within fixed windows	`segment`
`speed_ramp`	Non-uniform resampling: slow start, fast end	-
`pip_inject`	Composite a small picture-in-picture payload panel	`payload`, `position`, `size_ratio`

See Transforms for how to apply transforms with any attack.