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-rw-r--r--docs/MESHBAY_DESIGN.md14
1 files changed, 10 insertions, 4 deletions
diff --git a/docs/MESHBAY_DESIGN.md b/docs/MESHBAY_DESIGN.md
index 92f56ef..817afaa 100644
--- a/docs/MESHBAY_DESIGN.md
+++ b/docs/MESHBAY_DESIGN.md
@@ -1132,13 +1132,16 @@ it**.
> the branches come back.**
**The floor is not the current version, and MINOR additions are why.** It is
-`MNP_MIN_SUPPORTED` in `handshake.py`, it equals the last MAJOR, and 3.1 and 3.2
-have both been added above it without moving it. So a peer can be reachable and
+`MNP_MIN_SUPPORTED` in `handshake.py`, it equals the last MAJOR, and 3.1, 3.2 and
+3.3 have all been added above it without moving it. So a peer can be reachable and
still not do something the current version can, and the client has to cope with
that — **by reading the peer's own answer, never by comparing version numbers**.
3.2's audio tracks are the worked example: the node lists them in `stream_init`,
the client draws its selector from that list, and a node that sends no list gets no
-selector. That is not the branch the box above refuses. The branch it refuses is a
+selector. 3.3's subtitles repeat it exactly, and add the case where the list is
+narrower than the file: only the tracks the node can convert to WebVTT are named,
+so what the menu offers is what will actually appear, and a track's ordinal is
+therefore not its position in the list. That is not the branch the box above refuses. The branch it refuses is a
flag the client sets from a version it parsed; this is the node stating what it
has, in the same message the feature already needed, and it takes exactly one path
per peer because the peer said which.
@@ -2940,7 +2943,8 @@ The hub, the node daemon, both transports, the unified handshake, admission and
pairing, device linking with member-visible evidence, per-node identity, named roots
with RO/RW and eject/plug, the indexer with partial hashing, uploads, the sealed
index and sealed upload path, encrypted chat with epochs, video streaming with
-seeking, transfer leases with queueing, pause and resume, the group-application
+seeking, audio-language and subtitle selection, transfer leases with queueing,
+pause and resume, the group-application
framework with Chat, Files, Videos,
Music and Photos, cross-group search with source merging, the operator CLI and
loopback control API, the desktop client through its identity and download stages,
@@ -2956,6 +2960,8 @@ account recovery, and the Windows port through packaging.
| **Stage D11** | Windows clean-machine install verification and code signing |
| **Stage D12** | Release key, signed repositories, updates through the OS |
| — | DLNA/UPnP casting (§11.4) |
+| — | **Subtitles on a Chromecast.** The client shows them; the relay re-serves the same fMP4 bytes the browser gets, and a `<track>` in the renderer's DOM never leaves the machine. The route is an out-of-band `/subs.vtt` on the relay plus `tracks` on `player.load()`, and its one unknown — whether the receiver's CORS requirement can be met by the relay — cannot be settled by reading code |
+| — | **Bitmap subtitles** (PGS, VOBSUB — about a fifth of the embedded streams). No WebVTT without OCR; they are not listed rather than listed and blank. Burn-in covers them and costs `-c:v copy`, which is what the eight-slot sizing assumes never happens |
| — | Delegation (§3.4) |
| — | Tier 3 roster attestation (§3.3) |
| — | Playlists (§9.10) |