happy
4c270b744f
Root causes found this session (all player-side, disc is valid -- bd_info validates it and mpv plays the ISO's feature directly): - Plain 'vlc <iso>' can't run ANY BD-J: system Java is 26, and libbluray's BD-J needs a JVM where System.setSecurityManager() works (<=21). run-vlc.sh pins mise Temurin 8, which is why it gets a menu at all. - The BD-J VFS-cache 'error creating /tmp/libbluray-bdj-cache' flood is libbluray's SecurityManager.canWrite() denying the cache root while an Xlet context is active. Fixed by pointing TMPDIR at LIBBLURAY_CACHE_ROOT (buda root), which canWrite() allows unconditionally. - Menu->playback failed with 'blurayReleaseVout: subpicture channel exists': VLC botches the background->playlist transition for an idle BD-J menu. Now the Xlet starts the feature immediately and draws the menu on top, so VLC stays in normal playing mode; MAIN FEATURE just hides the menu, any key brings it back, and the feature loops. Also: drop the redundant tools/vlc-plugins swap (system VLC already ships the bluray plugin), and add scripts/run-mpv.sh to play the feature with no BD-J/JVM at all. Vendored the SDK helloworld sample for reference. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
70 lines
2.7 KiB
Bash
Executable file
70 lines
2.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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MISE_BIN="${MISE_BIN:-$HOME/.local/bin/mise}"
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# Default to the on-disk BDMV folder; pass an explicit path to override (a
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# folder or an .iso). The folder is just the simpler preview target -- a real
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# player reads the JAR from the ISO's disc filesystem directly.
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TARGET="${1:-$ROOT_DIR/build/disc}"
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if [[ -d "$TARGET" && ! -d "$TARGET/BDMV" ]]; then
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echo "Not a BDMV folder (no BDMV/ inside): $TARGET" >&2
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echo "Run: make" >&2
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exit 1
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fi
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if [[ ! -e "$TARGET" ]]; then
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echo "Missing disc target: $TARGET" >&2
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echo "Run: make" >&2
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exit 1
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fi
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if [[ -x "$MISE_BIN" ]]; then
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JDK8_HOME="$("$MISE_BIN" where java@temurin-8.0.502+7 2>/dev/null || true)"
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else
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JDK8_HOME=""
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fi
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if [[ -z "$JDK8_HOME" && -d "$ROOT_DIR/vendor/bdj-sdk/host/jdk8" ]]; then
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JDK8_HOME="$(cd "$ROOT_DIR/vendor/bdj-sdk/host/jdk8" && pwd)"
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fi
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if [[ -n "$JDK8_HOME" ]]; then
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export JAVA_HOME="$JDK8_HOME/jre"
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export JDK_HOME="$JDK8_HOME"
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export LD_LIBRARY_PATH="$JDK8_HOME/jre/lib/amd64/server:${LD_LIBRARY_PATH:-}"
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fi
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# Note: no VLC_PLUGIN_PATH juggling. This system's VLC already ships the bluray
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# access plugin (/usr/lib/vlc/plugins/access/liblibbluray_plugin.so); the old
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# tools/vlc-plugins copy was only needed for split-package installs that lack it.
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# Give libbluray writable BD-J storage roots, and -- the important part -- put
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# the BD-J VFS cache *under* the cache (BUDA) root.
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#
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# libbluray copies the disc's JAR and fonts into a VFS cache under java.io.tmpdir
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# (default /tmp/libbluray-bdj-cache). Its BD-J SecurityManager.canWrite() checks
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# roots in this order: budaRoot -> persistentRoot -> (if an Xlet context is
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# active: DENY) -> cacheRoot. That extraction often runs while an Xlet context is
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# live on the thread, so the write is denied before the cacheRoot allowance is
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# ever reached -- the flaky "error creating .../libbluray-bdj-cache" /
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# "failed to create temporary cache directory" cascade that stops the Xlet (menu)
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# from loading. budaRoot/persistentRoot are allowed unconditionally, so pointing
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# TMPDIR (== java.io.tmpdir == the VFS cache's base) at the buda root makes the
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# cache path start with budaRoot and always pass the write check.
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BDJ_RUN_DIR="$ROOT_DIR/build/bdj-runtime"
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export LIBBLURAY_CACHE_ROOT="$BDJ_RUN_DIR/cache"
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export LIBBLURAY_PERSISTENT_ROOT="$BDJ_RUN_DIR/persistent"
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export TMPDIR="$LIBBLURAY_CACHE_ROOT"
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mkdir -p "$LIBBLURAY_CACHE_ROOT" "$LIBBLURAY_PERSISTENT_ROOT"
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# start each preview from a clean VFS cache
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rm -rf "$LIBBLURAY_CACHE_ROOT/libbluray-bdj-cache"
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if [[ -d "$TARGET" ]]; then
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ABS_TARGET="$(cd "$TARGET" && pwd)"
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else
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ABS_TARGET="$(cd "$(dirname "$TARGET")" && pwd)/$(basename "$TARGET")"
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fi
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exec vlc --bluray-menu "bluray://$ABS_TARGET"
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