nx_bitstream.nx

buildroot/runtime/nx_bitstream.nx

10686 B312 linesdepth 3pulls 3 transitivereach 512 importersview sourcekind tool

docs dependencies structs consts functions

about

nx_bitstream.nx -- bit-level reader for packed-binary formats. The foundation primitive that every bit-packed format decoder composes against: - DEFLATE (RFC 1951) -- LSB-first - GIF LZW -- LSB-first - JPEG Huffman segments -- MSB-first - FLAC / Vorbis / Opus -- MSB-first - VP8 / VP9 -- mixed (arithmetic + raw) - MP3 / AAC -- MSB-first Two-variant API: read_lsb_first vs read_msb_first. Caller picks per spec. Both share the same backing byte buffer + bit cursor. genealogy_id: substrate_format_decoders_foundation_2026_05_16 lineage_id: bitstream_v1

dependencies 3 imports · 24 importers

diagram shows first 10 each side; +0 more imports, +14 more importers in the complete lists below.

imports: nx_syscalls.nxnx_runtime.nxnx_tier.nx

imported by: nx_av1_ec.nxnx_av1_ec_gate.nxnx_av1_frame.nxnx_av1_frame_gate.nxnx_av1_obu.nxnx_av1_obu_gate.nxnx_av1_seq.nxnx_av1_seq_gate.nxnx_av1_tile.nxnx_av1_tile_gate.nxnx_bitstream_kat.nxnx_deflate.nxnx_flac.nxnx_flac_frame.nxnx_flac_frame_gate.nxnx_flac_gate.nxnx_huffman.nxnx_huffman_kat.nxnx_jpeg_decoder.nxnx_webp.nxnx_webp_huff.nxnx_webp_huff_gate.nxnx_webp_vp8l.nxnx_webp_vp8l_gate.nx

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

structs

31	struct NxBitStream

consts

27	const NX_MAGIC_61185: i64 = 61185
39	const NX_BS_BYTES: nx_size = 40

functions

43	func nx_bitstream_alloc(data: u8, size: nx_int) -> NxBitStream called by 16: main main main nx_av1_seq_parse main main+10 calls 1: sys_mmap
57	func nx_bitstream_bits_remaining(bs: *NxBitStream) -> nx_int called by 5: nx_bitstream_read_lsb nx_bitstream_read_msb nx_bitstream_skip_bits main main
66	func _bs_peek_byte(bs: *NxBitStream, offset: nx_int) -> nx_int called by 2: nx_bitstream_read_lsb nx_bitstream_read_msb
92	func nx_bitstream_read_lsb(bs: *NxBitStream, n_bits: nx_int) -> nx_int called by 13: nx_bitstream_peek_lsb main main _deflate_decode_huffman_block _deflate_build_dynamic_trees _deflate_inflate_block+7 calls 2: nx_bitstream_bits_remaining _bs_peek_byte
129	func nx_bitstream_read_msb(bs: *NxBitStream, n_bits: nx_int) -> nx_int called by 19: nx_av1_ec_init nx_av1_ec_renorm nx_av1_su_read nx_av1_delta_q_read nx_av1_quant_read nx_av1_cdef_read+13 calls 2: nx_bitstream_bits_remaining _bs_peek_byte
165	func nx_bitstream_peek_lsb(bs: *NxBitStream, n_bits: nx_int) -> nx_int called by 2: main main calls 1: nx_bitstream_read_lsb
176	func nx_bitstream_peek_msb(bs: *NxBitStream, n_bits: nx_int) -> nx_int calls 1: nx_bitstream_read_msb
189	func nx_bitstream_byte_align(bs: *NxBitStream) -> nx_int called by 4: nx_bitstream_read_byte_aligned main main _deflate_inflate_block
199	func nx_bitstream_skip_bits(bs: *NxBitStream, n_bits: nx_int) -> nx_int called by 2: main main calls 1: nx_bitstream_bits_remaining
216	func nx_bitstream_read_byte_aligned(bs: *NxBitStream) -> nx_int called by 2: main _deflate_inflate_block calls 1: nx_bitstream_byte_align
229	func main() -> nx_int calls 9: sys_mmap nx_bitstream_alloc nx_bitstream_bits_remaining nx_bitstream_read_lsb nx_bitstream_read_msb nx_bitstream_peek_lsb+3