feat(gateway): relay complete encoded frames

2026-07-30 22:47:48 +07:00
parent f12ed6c685
commit 786c96b110
22 changed files with 1023 additions and 159 deletions
@@ -0,0 +1,26 @@
+## Context
+
+The current harness sends one fixed 1,179-byte payload per logical sample. It reaches the production path but does not represent encoded frames at 60/120 FPS or exercise realistic fragmentation, reassembly, queue bytes, and keyframe pressure.
+
+## Goals / Non-Goals
+
+**Goals:**
+
+- Deterministically generate complete variable-size frame units at exact profile frame rates and target bitrates.
+- Include bounded periodic keyframes while preserving exact aggregate bytes.
+- Measure the existing production path and independent reassembly with frame-level accounting.
+
+**Non-Goals:**
+
+- A real encoder, codec parsing, a second simulator, or a normative run before immutable Protocol publication.
+
+## Decisions
+
+- Derive bytes per fixed interval from bitrate and FPS, distribute integer remainder deterministically, and shift bounded bytes into periodic keyframes while keeping the interval total exact.
+- Carry a deterministic frame index/pattern only in the generated payload bytes; no codec semantics are claimed.
+- Keep the existing path/impairment/resource driver and change its unit from datagram payload to complete frame.
+
+## Risks / Trade-offs
+
+- [Keyframes can exceed queue budget] → use the reviewed 1 MiB frame ceiling and production byte-bound queue.
+- [Short smoke windows have rounding effects] → assert exact generated totals and report measured duration separately from normative ten-minute gates.