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The server logged "[MEDIA] ffmpeg, ffprobe not found on PATH — video thumbnails and durations are DISABLED" on every boot of a player-hosted server. It now says "found — video thumbnails enabled", because the binaries are shipped gzipped, unpacked into /tmp at startup and put on PATH before server.js is required (its probe looks them up by name with execFile, so PATH is the whole mechanism). /tmp is not laziness, it is the only option, and the alternatives were measured on an XT245 rather than assumed: /storage/ssd bsexfat rw,nosuid,nodev,noexec,... <- exec => EACCES /storage/flash ext4 rw,nosuid,nodev,noexec,... <- same /storage/tmp tmpfs rw,nosuid,nodev,noexec,... <- same /tmp tmpfs rw,relatime <- the one that permits exec We run as uid=994(nodejs), so `mount -o remount,exec` answers "permission denied (are you root?)" on both volumes, and there is no setuid path to it: BrightSign points mount at busybox.nosuid, and their busybox.suid carries login/passwd/vlock and no mount applet. A symlink does not help either — noexec is a property of the filesystem holding the inode, not of the path used to reach it, so a link in /tmp pointing at flash still fails EACCES. Copying is what moves the inode onto a filesystem that permits execution. The binaries are ours and deliberately link nothing of BrightSign's. The OS does ship the whole ffmpeg 5.1 stack (libavformat/libavcodec/... backing GStreamer) and a stock Debian ffprobe against those libs starts, prints its banner, and then SIGSEGVs the moment it opens a file — their Yocto build is patched for hardware decode. So these are cross-built FFmpeg 7.1.1, --disable-gpl (LGPL 2.1+), fully static, --enable-small. ffprobe carries no decoders at all (durations and geometry come from the container) which is why it is 1.8MB against ffmpeg's 4.9MB; ~6.7MB of tmpfs on a box with 2.8GB free, ~3.2MB gzipped at rest. Verified on XT245 URD3C6000823: unpack 19ms, ffprobe -version 9ms, format=duration 3.533333 against a 3.533333s clip, stream 320x240 h264. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014kfhrUPit5MCqxeTQyqr56 |
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| .. | ||
| autorun.brs | ||
| bs-payload-install.js | ||
| bs-server-boot.js | ||
| node-server.html | ||
| server.env.example | ||
| st-config.example.json | ||