drivers/media/platform/verisilicon/rockchip_av1_filmgrain.h

File Facts

System

Linux kernel

Corpus path

drivers/media/platform/verisilicon/rockchip_av1_filmgrain.h

Extension

.h

Size

1034 bytes

Lines

37

Domain

Driver Families

Bucket

drivers/media

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

• linux/types.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _ROCKCHIP_AV1_FILMGRAIN_H_
#define _ROCKCHIP_AV1_FILMGRAIN_H_

#include <linux/types.h>

void rockchip_av1_generate_luma_grain_block(s32 (*luma_grain_block)[73][82],
					    s32 bitdepth,
					    u8 num_y_points,
					    s32 grain_scale_shift,
					    s32 ar_coeff_lag,
					    s32 (*ar_coeffs_y)[24],
					    s32 ar_coeff_shift,
					    s32 grain_min,
					    s32 grain_max,
					    u16 random_seed);

void rockchip_av1_generate_chroma_grain_block(s32 (*luma_grain_block)[73][82],
					      s32 (*cb_grain_block)[38][44],
					      s32 (*cr_grain_block)[38][44],
					      s32 bitdepth,
					      u8 num_y_points,
					      u8 num_cb_points,
					      u8 num_cr_points,
					      s32 grain_scale_shift,
					      s32 ar_coeff_lag,
					      s32 (*ar_coeffs_cb)[25],
					      s32 (*ar_coeffs_cr)[25],
					      s32 ar_coeff_shift,
					      s32 grain_min,
					      s32 grain_max,
					      u8 chroma_scaling_from_luma,
					      u16 random_seed);

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.