code wiki / _hdl_build / nx_room_interframe.nx

nx_room_interframe.nx

buildroot/runtime/_hdl_build/nx_room_interframe.nx

7025 B105 linesdepth 2pulls 2 transitivereach 0 importersview sourcekind tooltopic room
docsdependenciesstructsconstsfunctions

about

nx_room_interframe.nx -- the FIX for the measured 9fps (nx_room_bw_measure: full-frame JPEG saturates the uplink; inter-frame coding -> 31fps). Sovereign inter-frame (P-frame) codec CORE, ready to wire onto the live media plane: encode(prev,cur) -> per-block {SKIP if unchanged | quantized WHT residual}, decode(prev,stream) -> cur'. Skip blocks copy prev EXACTLY (zero bytes); changed blocks carry only the residual. 4x4 Walsh-Hadamard (self-inverse up to /16) + rounding quant. Proves the mechanism is real + byte-budget; the client capture-diff + the daemon relay of residual packets + deploy = the wire-in. GREEN = reconstruct within quant error, skip-blocks bit-exact, bandwidth strictly smaller. Evidence -> knowledge/status/room_interframe.log. license_tier: ORIGINAL

dependencies 1 imports · 0 importers

nx_syscalls.nx nx_room_interframe.nx

imports: nx_syscalls.nx

imported by: nobody (leaf or entry point)

call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown

main sys_mmap enc_block wht dec_block wht ↻ iw sys_write in2 sys_mmap ↻ sys_write ↻ sys_openat_append sys_close sys_exit

structs

none

consts

11const IF_LOG: *u8 = "knowledge/status/room_interframe.log"

functions

13func iw(fd: i64, s: *u8) -> i64 { var n: i64=0; while s[n]!=(0 as u8){n=n+1} sys_write(fd,s,n); return 0 }
called by 1: main calls 1: sys_write
14func in2(fd: i64, v: i64) -> i64 { let bb: *u8=sys_mmap(28); var m: i64=v; if m<0{m=0-m;sys_write(fd,"-" as *u8,1)} let t: *u8=sys_mmap(28); var k: i64=0; if m==0{t[0]=48 as u8;k=1} while m>0{t[k]=(48+(m%10)) as u8;m=m/10;k=k+1} var i: i64=0; while i<k{bb[i]=t[k-1-i];i=i+1} sys_write(fd,bb,k); return 0 }
called by 1: main calls 2: sys_mmapsys_write
17func wht(X: *i64, tmp: *i64, out: *i64) -> i64
called by 2: enc_blockdec_block
25func enc_block(res: *i64, tmp: *i64, T: *i64, q: *i64, QSTEP: i64) -> i64
called by 1: main calls 1: wht
32func dec_block(q: *i64, tmp: *i64, T: *i64, out: *i64, QSTEP: i64) -> i64
called by 1: main calls 1: wht
39func main() -> i64