code wiki / _hdl_build / nx_vcodec_packed_gate.nx
nx_vcodec_packed_gate.nx
buildroot/runtime/_hdl_build/nx_vcodec_packed_gate.nx
about
nx_vcodec_packed_gate.nx -- proves the TRANSMITTABLE codec split: the encoder writes one self-describing bitstream,
and an INDEPENDENT decoder (given only the previous frame + that stream, never the original) reconstructs the frame
BIT-EXACT to the encoder's reconstruction. This is the encode->[wire]->decode the vroom daemon will relay. Tests a
keyframe (intra) and an inter frame (motion + skip), and that the stream is far smaller than the raw frame.
dependencies 3 imports · 0 importers
imports: nx_syscalls.nxnx_gate_emit_lib.nxnx_vcodec.nx
imported by: nobody (leaf or entry point)
call flow from main pre-order; caps 40 nodes / depth 6 declared; ↻ = already shown
structs
| none |
consts
| none |
functions
| 9 | func g_abs(v: i64) -> i64 { if v < 0 { return 0 - v } return v } called by 1: frame_maxerr |
| 11 | func mkframe(f: *u8, W: i64, H: i64, t: i64) -> i64 called by 1: main |
| 21 | func frame_equal(a: *u8, b: *u8, n: i64) -> i64 { var i: i64=0; while i<n { if a[i]!=b[i] { return 0 } i=i+1 } return 1 } called by 1: main |
| 22 | func frame_maxerr(a: *u8, b: *u8, n: i64) -> i64 { var m: i64=0; var i: i64=0; while i<n { let e: i64=g_abs((a[i] as i64)-(b[i] as i64)); if e>m { m=e } i=i+1 } return m } |
| 24 | func main() -> i64 |