a5795d47d1
BGM_103's loop bounds are bit offsets in the decoder context, and each wave's duration follows from its declared byte rate, cross-checked against decoded PCM to 0.007 %. Cycle media length 62.34 / 63.29 s against 61.87 s wall: ratio 0.985, where a uniform 8.5 % slowdown predicts 1.085 -- 10 % away and on the other side of 1.0. The method's error bar is its own 1.5 % self-disagreement between two stems that must have equal duration, which is why the loop page refused this conversion for a finer question. It is adequate for an 8.5 % effect. Does NOT settle the frame clock: audio can hold real time on a timer while rendering lags, and 27.6 fps and the 8.5 % splash excess are both frame-clock numbers. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
27 lines
1.4 KiB
Bash
Executable File
27 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Boot with APU debug logging on, then run frame_vs_audio_clock.py.
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# log_mask=13 leaves Apu ENABLED (it disables Kernel+Cpu+Gpu); log_level=3 is
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# what emits XELOGAPU's "Looped Data" lines -- level 2 emits NONE, verified.
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set -u
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export HOME=/sylph-home/re SDL_AUDIODRIVER=dummy DISPLAY=:98
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SD="$(cd "$(dirname "$0")" && pwd)"
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OUT="${OUT:-/sylph-home/re/clockcheck}"; mkdir -p "$OUT"
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LOG="$OUT/canary.stdout"
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bash "$SD/ensure_single_emulator.sh"
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if ! xdpyinfo -display "$DISPLAY" >/dev/null 2>&1; then
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rm -f "/tmp/.X${DISPLAY#:}-lock" 2>/dev/null || true
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nohup bash -c 'Xvfb "$0" -screen 0 1280x720x24 -ac -nolisten tcp \
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+extension GLX +extension RANDR >/tmp/xvfb98.log 2>&1' "$DISPLAY" </dev/null >/dev/null 2>&1 &
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for _ in $(seq 1 50); do xdpyinfo -display "$DISPLAY" >/dev/null 2>&1 && break; done
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nohup env DISPLAY="$DISPLAY" HOME=/sylph-home openbox </dev/null >/tmp/openbox98.log 2>&1 &
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fi
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XUID="${SYLPH_XUID:-$(ls "${XENIA_CONTENT:-$HOME/.local/share/Xenia/content}" 2>/dev/null | head -1)}"
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[ -n "$XUID" ] || { echo "NO PROFILE"; exit 2; }
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echo "── EFFECTIVE CONFIG ──"
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echo " out=$OUT profile=$XUID"
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echo " log_mask=13 log_level=3 (Apu debug ON -- level 2 emits no Looped Data)"
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cd /sylph-home/re
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nohup run-canary --apu=sdl --log_mask=13 --log_level=3 \
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--logged_profile_slot_0_xuid="$XUID" </dev/null >"$LOG" 2>&1 &
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python3 "$SD/frame_vs_audio_clock.py" "$LOG" "$OUT" "${TITLE_S:-60}" "${MENU_S:-90}"
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