A standalone page for testing the 2/4/8-bit glyph designs against a live
camera. The main app (index.html) can now send and receive
glyph frames too, once a specific design is picked in its candidate
dropdown; this page's main advantage is Auto mode -- it doesn't need to
know which design is on screen ahead of time. Single-frame mode: point
the camera at a frame rendered by tools/glyph_link_demo.py;
Auto tries all three and moving to a different design resets and decodes
it fresh. Stream
mode: point at a sequence rendered by tools/glyph_stream_demo.py
and displayed one at a time -- accumulates blocks across frames via the
fountain layer, same as a real multi-frame transfer.