Sister to ampere-fourier (userspace consumer) and fresnel-fourier
(RK3399 peer). Tracks the 2 kernel-side blockers from ampere-fourier
iter1: HEVC OOPS in rkvdec_hevc_prepare_hw_st_rps (kernel-agent#11)
and VP9 enablement on VDPU381/383 (kernel-agent#12). AV1 stays
userspace (libva-v4l2-request-fourier#2), not in this campaign.
Process notes: Phase 0 includes a non-optional upstream prior-art
survey (linux-rockchip / linux-media / linux-mm / Kwiboo / Bootlin)
before any code; per operator policy, patches go to kernel-agent
experiment branches, NOT into the linux-ampere-fourier baseline
package.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
