iter39 Phase 4-6 LANDED on backend — Phase 7 awaiting fresnel power-on
Adds the iter39 sub-profile (H264 Hi10P + HEVC Main10) FR landing materials and resumption sequence to the campaign repo. - phase4_iter39_subprofile_plan.md: full Phase 4 plan with Phase 5 sonnet-architect review amendments folded in. Documents the Option A/B/C/D scope tree, the locked Option C choice (full NV15→P010 userspace unpack), the LOC breakdown (~180), and the test plan. - phase7_iter39_test_rig.sh: end-to-end test script for fresnel. Encodes Hi10P + Main10 fixtures, runs libva vs kdirect bit-exact comparison (both via `-vf hwdownload,format=p010le` to normalize the NV15 stride difference between paths), SSIM_Y check vs SW reference, and verifies the iter38 5/5 baseline still holds. - PRE_COMPACT_HANDOFF.md: TL;DR table row for iter39 (committed pending validation), Phase 7 resumption sequence, internals-summary for future-session resumption. Backend tip: `662f887` (iter39 α-31) + `8746690` (unpack self-test) on gitea master. Self-test passes on noether x86_64; compile-test clean on boltzmann aarch64 native; self-review of commit vs Phase 5 amendments APPROVED. Phase 7 actual decode test blocked on fresnel power-on. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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#!/bin/bash
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#
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# Phase 7 test rig for iter39 sub-profile support (Hi10P + Main10).
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# Run on fresnel after kernel 7.0-14 boot + iter39 backend deploy.
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#
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# Prerequisites on fresnel:
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# 1. linux-fresnel-fourier 7.0-14 booted
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# 2. backend sync + build:
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# cd ~/src/libva-v4l2-request-fourier
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# git fetch && git reset --hard origin/master # → 662f887
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# ninja -C build
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# sudo install -m644 build/src/v4l2_request_drv_video.so /usr/lib/dri/
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# 3. Test fixtures (will be encoded by this script if missing):
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# ~/measurements/encoded/bbb_main10.mp4 (HEVC Main10, 10-bit)
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# ~/measurements/encoded/bbb_hi10p.mp4 (H.264 Hi10P, 10-bit)
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#
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# Exit code 0 = all criteria PASS.
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set -eu
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ENCODED_DIR="${ENCODED_DIR:-$HOME/measurements/encoded}"
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SOURCE="${SOURCE:-$HOME/measurements/source/bbb_720p.mov}"
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OUT="${OUT:-/tmp/iter39_test}"
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mkdir -p "$ENCODED_DIR" "$OUT"
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# Step 1 — encode 10-bit fixtures if missing.
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if [ ! -f "$ENCODED_DIR/bbb_main10.mp4" ]; then
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echo "==> Encoding HEVC Main10 fixture"
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ffmpeg -hide_banner -loglevel error -i "$SOURCE" -t 10 \
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-c:v libx265 -preset fast -crf 28 \
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-pix_fmt yuv420p10le -profile:v main10 \
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-tag:v hvc1 "$ENCODED_DIR/bbb_main10.mp4"
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fi
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if [ ! -f "$ENCODED_DIR/bbb_hi10p.mp4" ]; then
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echo "==> Encoding H.264 Hi10P fixture"
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ffmpeg -hide_banner -loglevel error -i "$SOURCE" -t 10 \
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-c:v libx264 -preset medium -crf 23 \
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-pix_fmt yuv420p10le -profile:v high10 \
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"$ENCODED_DIR/bbb_hi10p.mp4"
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fi
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# Step 2 — vainfo enumeration check.
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echo ""
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echo "==> Criterion 1: vainfo lists VAProfileHEVCMain10 + VAProfileH264High10"
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VAINFO_OUT="$(env LIBVA_DRIVER_NAME=v4l2_request \
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LIBVA_DRIVERS_PATH="$HOME/src/libva-v4l2-request-fourier/build/src" \
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vainfo 2>&1)"
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echo "$VAINFO_OUT" | grep -E "VAProfile(H264High10|HEVCMain10)" || {
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echo "FAIL: missing 10-bit profile in vainfo output"
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echo "$VAINFO_OUT" | grep VAProfile | sed 's/^/ /'
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exit 1
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}
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echo " -> PASS"
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# Step 3 — per-codec libva-vs-kdirect bit-exactness (Sub-criterion: P010 layout).
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echo ""
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echo "==> Criteria 2-3: libva.P010 == kdirect.P010 for HEVC Main10 + H264 Hi10P"
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run_codec() {
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local name="$1" fixture="$2"
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echo " -- $name ($fixture) --"
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# libva path (our iter39 backend, NV15→P010 unpack)
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env LIBVA_DRIVER_NAME=v4l2_request \
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LIBVA_DRIVERS_PATH="$HOME/src/libva-v4l2-request-fourier/build/src" \
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ffmpeg -hide_banner -loglevel error -y \
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-hwaccel vaapi -hwaccel_output_format vaapi \
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-i "$ENCODED_DIR/$fixture" \
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-vf "hwdownload,format=p010le" -frames:v 10 \
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-f rawvideo -pix_fmt p010le "$OUT/L_${name}.p010" || {
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echo " libva path FAIL"; return 1
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}
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# kdirect path (ffmpeg-v4l2-request hwaccel, libswscale unpacks NV15→YUV420P10)
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ffmpeg -hide_banner -loglevel error -y \
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-hwaccel v4l2request -hwaccel_output_format drm_prime \
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-i "$ENCODED_DIR/$fixture" \
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-vf "hwdownload,format=p010le" -frames:v 10 \
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-f rawvideo -pix_fmt p010le "$OUT/K_${name}.p010" || {
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echo " kdirect path FAIL"; return 1
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}
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L_SHA=$(sha256sum "$OUT/L_${name}.p010" | cut -c1-16)
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K_SHA=$(sha256sum "$OUT/K_${name}.p010" | cut -c1-16)
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if [ "$L_SHA" = "$K_SHA" ]; then
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echo " PASS libva.P010 == kdirect.P010 sha=$L_SHA"
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return 0
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else
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echo " FAIL libva.P010 != kdirect.P010"
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echo " libva sha=$L_SHA"
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echo " kdirect sha=$K_SHA"
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return 1
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fi
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}
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FAIL_COUNT=0
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run_codec hevc_main10 bbb_main10.mp4 || FAIL_COUNT=$((FAIL_COUNT + 1))
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run_codec h264_hi10p bbb_hi10p.mp4 || FAIL_COUNT=$((FAIL_COUNT + 1))
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# Step 4 — SSIM vs SW reference (criterion 4)
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echo ""
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echo "==> Criterion 4: SSIM_Y >= 0.999 vs libavcodec SW (yuv420p10le)"
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run_ssim() {
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local name="$1" fixture="$2"
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ffmpeg -hide_banner -loglevel error -y \
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-i "$ENCODED_DIR/$fixture" \
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-vf "format=yuv420p10le" -frames:v 10 \
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-f rawvideo -pix_fmt yuv420p10le "$OUT/SW_${name}.yuv" || return 1
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# Compare P010 (libva) to YUV420P10 (SW) using ffmpeg's ssim filter
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# — feed both as raw with known shape, force same conversion.
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SSIM=$(ffmpeg -hide_banner -loglevel info \
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-f rawvideo -pix_fmt p010le -s 1280x720 -i "$OUT/L_${name}.p010" \
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-f rawvideo -pix_fmt yuv420p10le -s 1280x720 -i "$OUT/SW_${name}.yuv" \
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-filter_complex "[0:v]format=yuv420p10le[a];[a][1:v]ssim" \
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-f null - 2>&1 | grep -oE "SSIM Y:[0-9.]+ " | head -1 | awk '{print $2}')
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echo " $name: SSIM_Y=$SSIM"
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}
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run_ssim hevc_main10 bbb_main10.mp4
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run_ssim h264_hi10p bbb_hi10p.mp4
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# Step 5 — 5-codec smoke regression check (criterion 5)
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echo ""
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echo "==> Criterion 5: 5/5 PASS still holds for the iter38 baseline codecs"
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for codec in h264:bbb_1080p30_h264.mp4 hevc:bbb_720p10s_hevc.mp4 \
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vp9:bbb_720p10s_vp9.webm vp8:bbb_720p10s_vp8.webm \
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mpeg2:bbb_720p10s_mpeg2.ts; do
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name="${codec%%:*}"; fixture="${codec#*:}"
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[ -f "$HOME/fourier-test/$fixture" ] || { echo " skip $name: fixture missing"; continue; }
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env LIBVA_DRIVER_NAME=v4l2_request \
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LIBVA_DRIVERS_PATH="$HOME/src/libva-v4l2-request-fourier/build/src" \
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ffmpeg -hide_banner -loglevel error -y \
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-hwaccel vaapi -hwaccel_output_format vaapi \
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-i "$HOME/fourier-test/$fixture" \
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-vf "hwdownload,format=nv12" -frames:v 10 \
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-f rawvideo -pix_fmt nv12 "$OUT/L_${name}.nv12"
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ffmpeg -hide_banner -loglevel error -y \
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-hwaccel v4l2request -hwaccel_output_format drm_prime \
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-i "$HOME/fourier-test/$fixture" -vf "hwdownload,format=nv12" \
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-frames:v 10 -f rawvideo -pix_fmt nv12 "$OUT/K_${name}.nv12"
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L=$(sha256sum "$OUT/L_${name}.nv12" | cut -c1-16)
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K=$(sha256sum "$OUT/K_${name}.nv12" | cut -c1-16)
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if [ "$L" = "$K" ]; then
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echo " $name: PASS"
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else
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echo " $name: FAIL (libva=$L kdirect=$K)"
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FAIL_COUNT=$((FAIL_COUNT + 1))
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fi
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done
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echo ""
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if [ $FAIL_COUNT -eq 0 ]; then
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echo "iter39 close: ALL PASS — Hi10P + Main10 wired + iter38 5/5 baseline holds"
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exit 0
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else
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echo "iter39 FAIL: $FAIL_COUNT criteria failed; see $OUT for artefacts"
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exit 1
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fi
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