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#!/bin/bash
# SPDX-License-Identifier: BSD-3-Clause
# frame_sequence.sh - capture an animated GPU-rendered frame sequence end to
# end: run the guest's CUDA frame producer into the kvmfr ivshmem BAR and
# save every published frame on the host as PPM/PNG (the proven
# CUDA -> ivshmem -> host path; see docs/05-operations/06).
#
# Usage: tools/lg/frame_sequence.sh [frames] [width] [height] [fps] [outdir]
set -u
HERE="$(cd "$(dirname "$0")" && pwd)"
REPO="$(cd "$HERE/../.." && pwd)"
FRAMES="${1:-40}"
W="${2:-800}"
H="${3:-600}"
FPS="${4:-10}"
OUT="${5:-/tmp/opencode/frames-seq}"
mkdir -p "$OUT"
rm -f "$OUT"/frame-*.ppm "$OUT"/frame-*.png
# Start the host reader first so no published frame is missed.
python3 "$REPO/tools/lg/frame_reader.py" --frames "$FRAMES" --out "$OUT" \
--timeout 240 > "$OUT/reader.log" 2>&1 &
READER=$!
sleep 1
"$REPO/scripts/ssh_guest.sh" \
"sudo /tmp/frame_producer $FRAMES $W $H $FPS" 2>&1 | grep -v "Permanently added" \
| tail -5
wait "$READER"
echo "reader rc=$?"
ls -1 "$OUT"/frame-*.ppm 2>/dev/null | wc -l
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