-use nihav_core::formats;
-use nihav_core::codecs::*;
-use nihav_core::io::byteio::*;
-use std::io::SeekFrom;
-use std::mem;
-
-struct IviDeltaCB {
- quad_radix: u8,
- data: &'static [i8],
-}
-
-#[derive(Clone, Copy)]
-struct MV {
- x: i8,
- y: i8
-}
-
-struct Buffers {
- width: usize,
- height: usize,
- cw: usize,
- ch: usize,
- sbuf: Vec<u8>,
- dbuf: Vec<u8>,
-}
-
-const DEFAULT_PIXEL: u8 = 0x40;
-
-impl Buffers {
- fn new() -> Self { Buffers { width: 0, height: 0, cw: 0, ch: 0, sbuf: Vec::new(), dbuf: Vec::new() } }
- fn reset(&mut self) {
- self.width = 0;
- self.height = 0;
- self.sbuf.truncate(0);
- self.dbuf.truncate(0);
- }
- fn alloc(&mut self, w: usize, h: usize) {
- self.width = w;
- self.height = h;
- self.cw = ((w >> 2) + 3) & !3;
- self.ch = ((h >> 2) + 3) & !3;
- self.sbuf.resize(w * h + self.cw * self.ch * 2, DEFAULT_PIXEL);
- self.dbuf.resize(w * h + self.cw * self.ch * 2, DEFAULT_PIXEL);
- }
- fn flip(&mut self) { std::mem::swap(&mut self.sbuf, &mut self.dbuf); }
- fn get_stride(&mut self, planeno: usize) -> usize {
- if planeno == 0 { self.width } else { self.cw }
- }
- fn get_offset(&mut self, planeno: usize) -> usize {
- match planeno {
- 1 => self.width * self.height,
- 2 => self.width * self.height + self.cw * self.ch,
- _ => 0,
- }
- }
- fn fill_framebuf(&mut self, fbuf: &mut NAVideoBuffer<u8>) {
- for planeno in 0..3 {
- let mut soff = self.get_offset(planeno);
- let mut doff = fbuf.get_offset(planeno);
- let sstride = self.get_stride(planeno);
- let dstride = fbuf.get_stride(planeno);
- let width = if planeno == 0 { self.width } else { self.width >> 2 };
- let height = if planeno == 0 { self.height } else { self.height >> 2 };
- let src = self.dbuf.as_slice();
- let dst = fbuf.get_data_mut().unwrap();
- for _ in 0..height {
- for x in 0..width {
- dst[doff + x] = src[soff + x] * 2;
- }
- soff += sstride;
- doff += dstride;
- }
- }
- }
- fn copy_block(&mut self, doff: usize, soff: usize, stride: usize, w: usize, h: usize) {
- let mut sidx = soff;
- let mut didx = doff;
- for _ in 0..h {
- for i in 0..w { self.dbuf[didx + i] = self.sbuf[sidx + i]; }
- sidx += stride;
- didx += stride;
- }
- }
- fn fill_block(&mut self, doff: usize, stride: usize, w: usize, h: usize, topline: bool) {
- let mut didx = doff;
- let mut buf: [u8; 8] = [0; 8];
- if topline {
- for _ in 0..h {
- for i in 0..w { self.dbuf[didx + i] = DEFAULT_PIXEL; }
- didx += stride;
- }
- } else {
- for i in 0..w { buf[i] = self.dbuf[didx - stride + i]; }
- for _ in 0..h {
- for i in 0..w { self.dbuf[didx + i] = buf[i]; }
- didx += stride;
- }
- }
- }
-}
-
-#[allow(unused_variables)]
-fn apply_delta4x4(bufs: &mut Buffers, off: usize, stride: usize,
- deltas: &[u8], topline: bool, first_line: bool) {
- let dst = &mut bufs.dbuf[off..][..4];
- for i in 0..4 { dst[i] = dst[i].wrapping_add(deltas[i]) & 0x7F; }
-}
-
-#[allow(unused_variables)]
-fn apply_delta4x8(bufs: &mut Buffers, off: usize, stride: usize,
- deltas: &[u8], topline: bool, first_line: bool) {
- let dst = &mut bufs.dbuf[off..][..stride + 4];
- for i in 0..4 { dst[i + stride] = dst[i].wrapping_add(deltas[i]) & 0x7F; }
- if !topline {
- for i in 0..4 { dst[i] = (dst[i + stride] + dst[i]) >> 1; }
- } else {
- for i in 0..4 { dst[i] = dst[i + stride]; }
- }
-}
-
-#[allow(unused_variables)]
-fn apply_delta4x8m11(bufs: &mut Buffers, off: usize, stride: usize,
- deltas: &[u8], topline: bool, first_line: bool) {
- let dst = &mut bufs.dbuf[off..][..stride + 4];
- for i in 0..4 { dst[i] = dst[i] .wrapping_add(deltas[i]) & 0x7F; }
- for i in 0..4 { dst[i + stride] = dst[i + stride].wrapping_add(deltas[i]) & 0x7F; }
-}
-
-#[allow(unused_variables)]
-fn apply_delta8x8p(bufs: &mut Buffers, off: usize, stride: usize,
- deltas: &[u8], topline: bool, first_line: bool) {
- let dst = &mut bufs.dbuf[off..][..stride + 8];
- for i in 0..8 { dst[i] = dst[i] .wrapping_add(deltas[i >> 1]) & 0x7F; }
- for i in 0..8 { dst[i + stride] = dst[i + stride].wrapping_add(deltas[i >> 1]) & 0x7F; }
-}
-
-fn apply_delta8x8i(bufs: &mut Buffers, off: usize, stride: usize,
- deltas: &[u8], topline: bool, firstline: bool) {
- let dst = &mut bufs.dbuf[off..][..stride + 8];
- if !firstline {
- for i in 0..8 { dst[i + stride] = dst[i ].wrapping_add(deltas[i >> 1]) & 0x7F; }
- } else {
- for i in 0..8 { dst[i + stride] = dst[i & !1].wrapping_add(deltas[i >> 1]) & 0x7F; }
- }
- if !topline {
- for i in 0..8 { dst[i] = (dst[i + stride] + dst[i]) >> 1; }
- } else {
- for i in 0..8 { dst[i] = dst[i + stride]; }
- }
-}
-
-fn copy_line_top(bufs: &mut Buffers, off: usize, stride: usize, bw: usize, topline: bool) {
- let mut buf: [u8; 8] = [0; 8];
- if !topline {
- let src = &bufs.dbuf[(off - stride)..(off - stride + bw)];
- for i in 0..bw { buf[i] = src[i]; }
- } else {
- for i in 0..bw { buf[i] = DEFAULT_PIXEL; }
- }
- let dst = &mut bufs.dbuf[off..][..bw];
- for i in 0..bw { dst[i] = buf[i]; }
-}
-
-fn copy_line_top4x4(bufs: &mut Buffers, off: usize, stride: usize, topline: bool) {
- copy_line_top(bufs, off, stride, 4, topline);
-}
-
-fn copy_line_top4x8(bufs: &mut Buffers, off: usize, stride: usize, topline: bool) {
- copy_line_top(bufs, off, stride, 4, topline);
- copy_line_top(bufs, off + stride, stride, 4, false);
-}
-
-fn copy_line_top8x8(bufs: &mut Buffers, off: usize, stride: usize, topline: bool) {
- let mut buf: [u8; 8] = [0; 8];
- if !topline {
- let src = &bufs.dbuf[(off - stride)..(off - stride + 8)];
- for i in 0..8 { buf[i] = src[i & !1]; }
- } else {
- for i in 0..8 { buf[i] = DEFAULT_PIXEL; }
- }
- let dst = &mut bufs.dbuf[off..][..8];
- for i in 0..8 {dst[i] = buf[i]; }
-}
-
-fn fill_block8x8(bufs: &mut Buffers, doff: usize, stride: usize, h: usize, topline: bool, firstline: bool) {
- let mut didx = doff;
- let mut buf: [u8; 8] = [0; 8];
- if firstline {
- for i in 0..8 { buf[i] = DEFAULT_PIXEL; }
- } else {
- for i in 0..8 { buf[i] = bufs.dbuf[doff - stride + i]; }
- }
- if topline && !firstline {
- for i in 0..4 { buf[i * 2 + 1] = buf[i * 2]; }
- for i in 0..8 { bufs.dbuf[doff + i] = (bufs.dbuf[doff - stride + i] + buf[i]) >> 1; }
- }
-
- let start = if !topline { 0 } else { 1 };
- if topline {
- didx += stride;
- }
- for _ in start..h {
- for i in 0..8 { bufs.dbuf[didx + i] = buf[i]; }
- didx += stride;
- }
-}
-
-struct Indeo3Decoder {
- info: NACodecInfoRef,
- bpos: u8,
- bbuf: u8,
- width: u16,
- height: u16,
- mvs: Vec<MV>,
- altquant: [u8; 16],
- vq_offset: u8,
- bufs: Buffers,
- requant_tab: [[u8; 128]; 8],
-}
-
-#[derive(Clone,Copy)]
-struct IV3Cell {
- x: u16,
- y: u16,
- w: u16,
- h: u16,
- d: u8,
- vqt: bool,
- mv: Option<MV>,
-}
-
-impl IV3Cell {
- fn new(w: u16, h: u16) -> Self {
- IV3Cell { x: 0, y: 0, w, h, d: 20, vqt: false, mv: None }
- }
- fn split_h(&self) -> (Self, Self) {
- let h1 = if self.h > 2 { ((self.h + 2) >> 2) << 1 } else { 1 };
- let h2 = self.h - h1;
- let mut cell1 = *self;
- cell1.h = h1;
- cell1.d -= 1;
- let mut cell2 = *self;
- cell2.y += h1;
- cell2.h = h2;
- cell2.d -= 1;
- (cell1, cell2)
- }
- fn split_w(&self, stripw: u16) -> (Self, Self) {
- let w1 = if self.w > stripw {
- if self.w > stripw * 2 { stripw * 2 } else { stripw }
- } else {
- if self.w > 2 { ((self.w + 2) >> 2) << 1 } else { 1 }
- };
- let w2 = self.w - w1;
- let mut cell1 = *self;
- cell1.w = w1;
- cell1.d -= 1;
- let mut cell2 = *self;
- cell2.x += w1;
- cell2.w = w2;
- cell2.d -= 1;
- (cell1, cell2)
- }
- fn no_mv(&self) -> bool { self.mv.is_none() }
-}
-
-struct CellDecParams {
- tab: [usize; 2],
- bw: u16,
- bh: u16,
- swap_q: [bool; 2],
- hq: bool,
- apply_delta: fn (&mut Buffers, usize, usize, &[u8], bool, bool),
- copy_line_top: fn (&mut Buffers, usize, usize, bool),
-}
-
-const FRMH_TAG: u32 = ((b'F' as u32) << 24) | ((b'R' as u32) << 16)
- | ((b'M' as u32) << 8) | (b'H' as u32);
-
-const H_SPLIT: u8 = 0;
-const V_SPLIT: u8 = 1;
-const SKIP_OR_TREE: u8 = 2;
-
-impl Indeo3Decoder {
- fn new() -> Self {
- const REQUANT_OFF: [i32; 8] = [ 0, 1, 0, 4, 4, 1, 0, 1 ];
-
- let dummy_info = NACodecInfo::new_dummy();
-
- let mut requant_tab = [[0u8; 128]; 8];
- for i in 0..8 {
- let step = (i as i32) + 2;
- let start = if (i == 3) || (i == 4) { -3 } else { step / 2 };
- let mut last = 0;
- for j in 0..128 {
- requant_tab[i][j] = (((j as i32) + start) / step * step + REQUANT_OFF[i]) as u8;
- if requant_tab[i][j] < 128 {
- last = requant_tab[i][j];
- } else {
- requant_tab[i][j] = last;
- }
- }
- }
- requant_tab[1][7] = 10;
- requant_tab[1][119] = 118;
- requant_tab[1][120] = 118;
- requant_tab[4][8] = 10;
-
- Indeo3Decoder { info: dummy_info, bpos: 0, bbuf: 0, width: 0, height: 0,
- mvs: Vec::new(), altquant: [0; 16],
- vq_offset: 0, bufs: Buffers::new(), requant_tab }
- }
-
- fn br_reset(&mut self) {
- self.bpos = 0;
- self.bbuf = 0;
- }
-
- fn get_2bits(&mut self, br: &mut ByteReader) -> DecoderResult<u8> {
- if self.bpos == 0 {
- self.bbuf = br.read_byte()?;
- self.bpos = 8;
- }
- self.bpos -= 2;
- Ok((self.bbuf >> self.bpos) & 0x3)
- }
-
- fn decode_cell_data(&mut self, br: &mut ByteReader, cell: IV3Cell,
- off: usize, stride: usize, params: CellDecParams, vq_idx: u8) -> DecoderResult<()> {
- let blk_w = cell.w * 4 / params.bw;
- let blk_h = cell.h * 4 / params.bh;
- let scale: usize = if params.bh == 4 { 1 } else { 2 };
-
- validate!((((cell.w * 4) % params.bw) == 0) && (((cell.h * 4) % params.bh) == 0));
-
- let mut run_blocks = 0;
- let mut run_skip = false;
-
- let mut didx: usize = ((cell.x*4) as usize) + ((cell.y * 4) as usize) * stride + off;
- let mut sidx: usize;
-
- if cell.no_mv() {
- sidx = 0;
- } else {
- let mv = cell.mv.unwrap();
- let mx = i16::from(mv.x);
- let my = i16::from(mv.y);
- let l = (cell.x as i16) * 4 + mx;
- let t = (cell.y as i16) * 4 + my;
- let r = ((cell.x + cell.w) as i16) * 4 + mx;
- let b = ((cell.y + cell.h) as i16) * 4 + my;
- validate!(l >= 0);
- validate!(t >= 0);
- validate!(r <= (self.width as i16));
- validate!(b <= (self.height as i16));
- sidx = (l as usize) + (t as usize) * stride + off;
- }
- if vq_idx >= 8 {
- let requant_tab = &self.requant_tab[(vq_idx & 7) as usize];
- if cell.no_mv() {
- if cell.y > 0 {
- for x in 0..(cell.w as usize) * 4 {
- self.bufs.dbuf[didx + x - stride] = requant_tab[self.bufs.dbuf[didx + x - stride] as usize];
- }
- }
- } else {
- for x in 0..(cell.w as usize) * 4 {
- self.bufs.sbuf[sidx + x] = requant_tab[self.bufs.sbuf[sidx + x] as usize];
- }
- }
- }
- for y in 0..blk_h {
- let mut xoff: usize = 0;
- for _ in 0..blk_w {
- if run_blocks > 0 {
- if !run_skip || !cell.no_mv() {
- if !(params.bw == 8 && cell.no_mv()) {
- if !cell.no_mv() {
- self.bufs.copy_block(didx + xoff, sidx + xoff, stride,
- params.bw as usize, params.bh as usize);
- } else {
- self.bufs.fill_block(didx + xoff, stride,
- params.bw as usize, params.bh as usize,
- (cell.y == 0) && (y == 0));
- }
- } else {
- fill_block8x8(&mut self.bufs,
- didx + xoff, stride, 8,
- y == 0, (cell.y == 0) && (y == 0));
- }
- }
- run_blocks -= 1;
- } else {
- let mut line: usize = 0;
- while line < 4 {
- let c = br.read_byte()?;
- if c < 0xF8 {
- let delta_tab = if params.hq {
- IVI3_DELTA_CBS[params.tab[line & 1]]
- } else {
- IVI3_DELTA_CBS[params.tab[1]]
- };
- let mut idx1;
- let mut idx2;
- if (c as usize) < delta_tab.data.len()/2 {
- idx1 = br.read_byte()? as usize;
- validate!(idx1 < delta_tab.data.len() / 2);
- idx2 = c as usize;
- } else {
- let tmp = (c as usize) - delta_tab.data.len()/2;
- idx1 = tmp / (delta_tab.quad_radix as usize);
- idx2 = tmp % (delta_tab.quad_radix as usize);
- if params.swap_q[line & 1] {
- mem::swap(&mut idx1, &mut idx2);
- }
- }
- let deltas: [u8; 4] = [delta_tab.data[idx1 * 2] as u8,
- delta_tab.data[idx1 * 2 + 1] as u8,
- delta_tab.data[idx2 * 2 + 0] as u8,
- delta_tab.data[idx2 * 2 + 1] as u8];
- let topline = (cell.y == 0) && (y == 0) && (line == 0);
- let first_line = (y == 0) && (line == 0);
- if cell.no_mv() {
- (params.copy_line_top)(&mut self.bufs,
- didx + xoff + line * scale * stride,
- stride, topline);
- } else {
- self.bufs.copy_block(didx + xoff + line * scale * stride,
- sidx + xoff + line * scale * stride,
- stride, params.bw as usize, scale);
- }
- (params.apply_delta)(&mut self.bufs,
- didx + xoff + line * scale * stride,
- stride, &deltas, topline, first_line);
- line += 1;
- } else {
- let mut tocopy: usize = 0;
- let mut do_copy = true;
- if c == 0xF8 { return Err(DecoderError::InvalidData); }
- if c == 0xF9 {
- run_blocks = 1;
- run_skip = true;
- validate!(line == 0);
- tocopy = 4;
- do_copy = !cell.no_mv();
- }
- if c == 0xFA {
- validate!(line == 0);
- tocopy = 4;
- do_copy = !cell.no_mv();
- }
- if c == 0xFB {
- let c = br.read_byte()?;
- validate!((c < 64) && ((c & 0x1F) != 0));
- run_blocks = (c & 0x1F) - 1;
- run_skip = (c & 0x20) != 0;
- tocopy = 4 - line;
- if params.bw == 4 && cell.no_mv() && run_skip {
- do_copy = false;
- }
- }
- if c == 0xFC {
- run_skip = false;
- run_blocks = 1;
- tocopy = 4 - line;
- }
- if c >= 0xFD {
- let nl = 257 - i16::from(c) - (line as i16);
- validate!(nl > 0);
- tocopy = nl as usize;
- }
- if do_copy {
- if !(params.bh == 8 && cell.no_mv()) {
- if !cell.no_mv() {
- self.bufs.copy_block(didx + xoff + line * scale * stride,
- sidx + xoff + line * scale * stride,
- stride, params.bw as usize,
- tocopy * scale);
- } else {
- self.bufs.fill_block(didx + xoff + line * scale * stride,
- stride, params.bw as usize,
- tocopy * scale,
- (cell.y == 0) && (y == 0) && (line == 0));
- }
- } else {
- fill_block8x8(&mut self.bufs,
- didx + xoff + line * 2 * stride,
- stride, tocopy * 2,
- (y == 0) && (line == 0),
- (cell.y == 0) && (y == 0) && (line == 0));
- }
- }
- line += tocopy;
- }
- }
- }
- xoff += params.bw as usize;
- }
- didx += stride * (params.bh as usize);
- sidx += stride * (params.bh as usize);
- }
- Ok(())
- }
-
- fn copy_cell(&mut self, cell: IV3Cell, off: usize, stride: usize) -> DecoderResult<()> {
- if cell.no_mv() { return Err(DecoderError::InvalidData); }
- let mv = cell.mv.unwrap();
- let mx = i16::from(mv.x);
- let my = i16::from(mv.y);
- let l = (cell.x as i16) * 4 + mx;
- let t = (cell.y as i16) * 4 + my;
- let r = ((cell.x + cell.w) as i16) * 4 + mx;
- let b = ((cell.y + cell.h) as i16) * 4 + my;
- validate!(l >= 0);
- validate!(t >= 0);
- validate!(r <= (self.width as i16));
- validate!(b <= (self.height as i16));
- let sidx: usize = off + (l as usize) + (t as usize) * stride;
- let didx: usize = off + ((cell.x * 4) as usize) + ((cell.y * 4) as usize) * stride;
- self.bufs.copy_block(didx, sidx, stride, (cell.w * 4) as usize, (cell.h * 4) as usize);
- Ok(())
- }
-
- fn decode_cell(&mut self, br: &mut ByteReader, cell: IV3Cell, off: usize,
- stride: usize, intra: bool) -> DecoderResult<()> {
- let code = br.read_byte()?;
- let mode = code >> 4;
- let vq_idx = code & 0xF;
-
- let mut idx1: usize = vq_idx as usize;
- let mut idx2: usize = vq_idx as usize;
- if (mode == 1) || (mode == 4) {
- let c = self.altquant[vq_idx as usize];
- idx1 = (c >> 4) as usize;
- idx2 = (c & 0xF) as usize;
- } else {
- idx1 += self.vq_offset as usize;
- idx2 += self.vq_offset as usize;
- }
- validate!((idx1 < 24) && (idx2 < 24));
-
- let mut cp = CellDecParams {
- tab: [idx2, idx1],
- bw: 0, bh: 0,
- swap_q: [idx2 >= 16, idx1 >= 16],
- hq: false,
- apply_delta: apply_delta4x4,
- copy_line_top: copy_line_top4x4,
- };
- if (mode == 0) || (mode == 1) {
- cp.bw = 4;
- cp.bh = 4;
- cp.hq = true;
- } else if (mode == 3) || (mode == 4) {
- if !cell.no_mv() { return Err(DecoderError::InvalidData); }
- cp.bw = 4;
- cp.bh = 8;
- cp.hq = true;
- cp.apply_delta = apply_delta4x8;
- cp.copy_line_top = copy_line_top4x8;
- } else if mode == 10 {
- if !cell.no_mv() {
- validate!(!intra);
- cp.apply_delta = apply_delta8x8p;
- } else {
- cp.apply_delta = apply_delta8x8i;
- }
- cp.bw = 8;
- cp.bh = 8;
- cp.copy_line_top = copy_line_top8x8;
- } else if mode == 11 {
- if cell.no_mv() { return Err(DecoderError::InvalidData); }
- validate!(!intra);
- cp.bw = 4;
- cp.bh = 8;
- cp.apply_delta = apply_delta4x8m11;
- cp.copy_line_top = copy_line_top4x8;
- } else {
- return Err(DecoderError::InvalidData);
- }
- self.decode_cell_data(br, cell, off, stride, cp, vq_idx)
- }
-
- fn parse_tree(&mut self, br: &mut ByteReader, cell: IV3Cell, off: usize,
- stride: usize, stripw: u16, intra: bool) -> DecoderResult<()> {
- let op = self.get_2bits(br)?;
- if op == H_SPLIT {
- validate!(cell.h > 1);
- validate!(cell.d > 0);
- let (cell1, cell2) = cell.split_h();
- self.parse_tree(br, cell1, off, stride, stripw, intra)?;
- self.parse_tree(br, cell2, off, stride, stripw, intra)?;
- Ok(())
- } else if op == V_SPLIT {
- validate!(cell.w > 1);
- validate!(cell.d > 0);
- let (cell1, cell2) = cell.split_w(stripw);
- self.parse_tree(br, cell1, off, stride, stripw, intra)?;
- self.parse_tree(br, cell2, off, stride, stripw, intra)?;
- Ok(())
- } else if op == SKIP_OR_TREE {
- if !cell.vqt {
- let mut newcell = cell;
- newcell.vqt = true;
- newcell.d -= 1;
- self.parse_tree(br, newcell, off, stride, stripw, intra)
- } else {
- validate!(!intra);
- let code = self.get_2bits(br)?;
- validate!(code < 2);
- if code == 1 { return Err(DecoderError::NotImplemented); }
- self.copy_cell(cell, off, stride)
- }
- } else {
- if !cell.vqt {
- let mut newcell = cell;
- newcell.vqt = true;
- newcell.d -= 1;
- let mv_idx = br.read_byte()? as usize;
- validate!(mv_idx < self.mvs.len());
- newcell.mv = Some(self.mvs[mv_idx]);
- self.parse_tree(br, newcell, off, stride, stripw, intra)
- } else {
- self.decode_cell(br, cell, off, stride, intra)
- }
- }
- }
-
- fn decode_plane_intra(&mut self, br: &mut ByteReader, planeno: usize,
- start: u64, end: u64) -> DecoderResult<()> {
- let offs = self.bufs.get_offset(planeno);
- let stride = self.bufs.get_stride(planeno);
- br.seek(SeekFrom::Start(start))?;
-
- let nvec = br.read_u32le()?;
- validate!(nvec == 0); // for intra there should be no mc_vecs
- self.mvs.truncate(0);
- for _ in 0..nvec {
- let x = br.read_byte()? as i8;
- let y = br.read_byte()? as i8;
- self.mvs.push(MV{ x, y });
- }
-
- let (cellwidth, cellheight) = if planeno == 0 {
- (self.bufs.width >> 2, self.bufs.height >> 2)
- } else {
- (((self.bufs.width >> 2) + 3) >> 2, ((self.bufs.height >> 2) + 3) >> 2)
- };
- let cell = IV3Cell::new(cellwidth as u16, cellheight as u16);
- self.br_reset();
- self.parse_tree(br, cell, offs, stride, if planeno > 0 { 10 } else { 40 }, true)?;
- validate!(br.tell() <= end);
- Ok(())
- }
-
- fn decode_plane_inter(&mut self, br: &mut ByteReader, planeno: usize,
- start: u64, end: u64) -> DecoderResult<()> {
- let offs = self.bufs.get_offset(planeno);
- let stride = self.bufs.get_stride(planeno);
- br.seek(SeekFrom::Start(start))?;
-
- let nvec = br.read_u32le()?;
- validate!(nvec <= 256); // for intra there should be no mc_vecs
- self.mvs.truncate(0);
- for _ in 0..nvec {
- let y = br.read_byte()? as i8;
- let x = br.read_byte()? as i8;
- self.mvs.push(MV{ x, y });
- }
-
- let (cellwidth, cellheight) = if planeno == 0 {
- (self.bufs.width >> 2, self.bufs.height >> 2)
- } else {
- (((self.bufs.width >> 2) + 3) >> 2, ((self.bufs.height >> 2) + 3) >> 2)
- };
- let cell = IV3Cell::new(cellwidth as u16, cellheight as u16);
- self.br_reset();
- self.parse_tree(br, cell, offs, stride, if planeno > 0 { 10 } else { 40 }, false)?;
- validate!(br.tell() <= end);
- Ok(())
- }
-}
-
-const FLAG_KEYFRAME: u16 = 1 << 2;
-const FLAG_NONREF: u16 = 1 << 8;
-
-impl NADecoder for Indeo3Decoder {
- fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
- if let NACodecTypeInfo::Video(vinfo) = info.get_properties() {
- let w = vinfo.get_width();
- let h = vinfo.get_height();
- let fmt = formats::YUV410_FORMAT;
- let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, fmt));
- self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref();
- self.bufs.reset();
- Ok(())
- } else {
- Err(DecoderError::InvalidData)
- }
- }
- fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
- let src = pkt.get_buffer();
- let mut mr = MemoryReader::new_read(&src);
- let mut br = ByteReader::new(&mut mr);
- let frameno = br.read_u32le()?;
- let hdr_2 = br.read_u32le()?;
- let check = br.read_u32le()?;
- let size = br.read_u32le()?;
-
- let data_start = br.tell();
-
- if (frameno ^ hdr_2 ^ size ^ FRMH_TAG) != check {
- return Err(DecoderError::InvalidData);
- }
- if i64::from(size) > br.left() { return Err(DecoderError::InvalidData); }
- let ver = br.read_u16le()?;
- if ver != 32 { return Err(DecoderError::NotImplemented); }
- let flags = br.read_u16le()?;
- let size2 = br.read_u32le()?;
- if size2 == 0x80 {
- let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), NABufferType::None);
- frm.set_keyframe(false);
- frm.set_frame_type(FrameType::Skip);
- return Ok(frm.into_ref());
- }
- validate!(((size2 + 7) >> 3) <= size);
- let cb = br.read_byte()?;
- self.vq_offset = cb;
- br.read_skip(3)?;
- let height = br.read_u16le()?;
- let width = br.read_u16le()?;
- validate!((width >= 16) && (width <= 640));
- validate!((height >= 16) && (height <= 640));
- validate!(((width & 3) == 0) && ((height & 3) == 0));
- let vinfo;
- if (self.bufs.width != (width as usize)) || (self.bufs.height != (height as usize)) {
- self.bufs.alloc(width as usize, height as usize);
- vinfo = NAVideoInfo::new(width as usize, height as usize, false, formats::YUV410_FORMAT);
- } else {
- vinfo = self.info.get_properties().get_video_info().unwrap();
- }
- self.width = width;
- self.height = height;
-
- let yoff = br.read_u32le()?;
- let uoff = br.read_u32le()?;
- let voff = br.read_u32le()?;
- if yoff > size { return Err(DecoderError::InvalidData); }
- if uoff > size { return Err(DecoderError::InvalidData); }
- if voff > size { return Err(DecoderError::InvalidData); }
-
- br.read_skip(4)?;
- br.read_buf(&mut self.altquant)?;
-
- let mut yend = src.len() as u32;//size;
- if (uoff < yend) && (uoff > yoff) { yend = uoff; }
- if (voff < yend) && (voff > yoff) { yend = voff; }
- let mut uend = size;
- if (yoff < uend) && (yoff > uoff) { uend = yoff; }
- if (voff < uend) && (voff > uoff) { uend = voff; }
- let mut vend = size;
- if (yoff < vend) && (yoff > voff) { vend = yoff; }
- if (uoff < vend) && (uoff > voff) { vend = uoff; }
-
- let intraframe = (flags & FLAG_KEYFRAME) != 0;
- let bufinfo = alloc_video_buffer(vinfo, 4)?;
- let mut buf = bufinfo.get_vbuf().unwrap();
- let ystart = data_start + u64::from(yoff);
- let ustart = data_start + u64::from(uoff);
- let vstart = data_start + u64::from(voff);
- let yendpos = data_start + u64::from(yend);
- let uendpos = data_start + u64::from(uend);
- let vendpos = data_start + u64::from(vend);
- if intraframe {
- self.decode_plane_intra(&mut br, 0, ystart, yendpos)?;
- self.decode_plane_intra(&mut br, 1, vstart, vendpos)?;
- self.decode_plane_intra(&mut br, 2, ustart, uendpos)?;
- } else {
- self.decode_plane_inter(&mut br, 0, ystart, yendpos)?;
- self.decode_plane_inter(&mut br, 1, vstart, vendpos)?;
- self.decode_plane_inter(&mut br, 2, ustart, uendpos)?;
- }
- self.bufs.fill_framebuf(&mut buf);
- if (flags & FLAG_NONREF) == 0 { self.bufs.flip(); }
- let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo);
- frm.set_keyframe(intraframe);
- frm.set_frame_type(if intraframe { FrameType::I } else { FrameType::P });
- Ok(frm.into_ref())
- }
- fn flush(&mut self) {
- self.bufs.reset();
- }
-}
-
-pub fn get_decoder() -> Box<dyn NADecoder + Send> {
- Box::new(Indeo3Decoder::new())
-}
-
-#[cfg(test)]
-mod test {
- use nihav_core::codecs::RegisteredDecoders;
- use nihav_core::demuxers::RegisteredDemuxers;
- use nihav_core::test::dec_video::*;
- use crate::codecs::indeo_register_all_codecs;
- use nihav_commonfmt::demuxers::generic_register_all_demuxers;
- #[test]
- fn test_indeo3() {
- let mut dmx_reg = RegisteredDemuxers::new();
- generic_register_all_demuxers(&mut dmx_reg);
- let mut dec_reg = RegisteredDecoders::new();
- indeo_register_all_codecs(&mut dec_reg);
-
- test_decoding("avi", "indeo3", "assets/Indeo/iv32_example.avi", Some(10),
- &dmx_reg, &dec_reg, ExpectedTestResult::MD5Frames(vec![
- [0x90be698e, 0x326db071, 0x08e8c6a5, 0x39349acc],
- [0x25d677fc, 0x63f96aaa, 0xd412ca98, 0x61416313],
- [0xc4368250, 0x63e7b6bc, 0xffcff950, 0x11f13239],
- [0x7e869758, 0x027abc2e, 0x25204bca, 0x93fbaa03],
- [0x5a1e822c, 0x2b1a4cd5, 0x72059843, 0xe5689ad1],
- [0x3a971cce, 0x5ec22135, 0x1a45f802, 0x0f5f9264],
- [0x0a65f782, 0xd8767cf3, 0x878b4b8d, 0xfc94c88b],
- [0x4ac70139, 0x3300eac1, 0xba84b068, 0x47f5ff29],
- [0x3e8c8ec4, 0x9421b38c, 0x580abbbd, 0x92792d19],
- [0x9096ee9b, 0x8dd9fb14, 0x981e31e3, 0x3ffd7d29],
- [0x22dc71ec, 0x3d8f6f7e, 0x1a198982, 0x41d17ecc]]));
- }
-}
-
-const DT_1_1: IviDeltaCB = IviDeltaCB{ quad_radix: 7, data: &[
- 0, 0, 2, 2, -2, -2, -1, 3,
- 1, -3, 3, -1, -3, 1, 4, 4,
- -4, -4, 1, 5, -1, -5, 5, 1,
- -5, -1, -4, 4, 4, -4, -2, 6,
- 2, -6, 6, -2, -6, 2, 4, 9,
- -4, -9, 9, 4, -9, -4, 9, 9,
- -9, -9, 1, 10, -1, -10, 10, 1,
- -10, -1, -5, 8, 5, -8, 8, -5,
- -8, 5, 9, 15, -9, -15, 15, 9,
- -15, -9, -3, 12, 3, -12, 12, -3,
- -12, 3, 4, 16, -4, -16, 16, 4,
- -16, -4, 16, 16, -16, -16, 0, 18,
- 0, -18, 18, 0, -18, 0, -12, 12,
- 12, -12, -9, 16, 9, -16, 16, -9,
- -16, 9, 11, 27, -11, -27, 27, 11,
- -27, -11, 19, 28, -19, -28, 28, 19,
- -28, -19, -6, 22, 6, -22, 22, -6,
- -22, 6, 4, 29, -4, -29, 29, 4,
- -29, -4, 30, 30, -30, -30, -2, 33,
- 2, -33, 33, -2, -33, 2, -18, 23,
- 18, -23, 23, -18, -23, 18, -15, 30,
- 15, -30, 30, -15, -30, 15, 22, 46,
- -22, -46, 46, 22, -46, -22, 13, 47,
- -13, -47, 47, 13, -47, -13, 35, 49,
- -35, -49, 49, 35, -49, -35, -11, 41,
- 11, -41, 41, -11, -41, 11, 4, 51,
- -4, -51, 51, 4, -51, -4, 54, 54,
- -54, -54, -34, 34, 34, -34, -29, 42,
- 29, -42, 42, -29, -42, 29, -6, 60,
- 6, -60, 60, -6, -60, 6, 27, 76,
- -27, -76, 76, 27, -76, -27, 43, 77,
- -43, -77, 77, 43, -77, -43, -24, 55,
- 24, -55, 55, -24, -55, 24, 14, 79,
- -14, -79, 79, 14, -79, -14, 63, 83,
- -63, -83, 83, 63, -83, -63, -20, 74,
- 20, -74, 74, -20, -74, 20, 2, 88,
- -2, -88, 88, 2, -88, -2, 93, 93,
- -93, -93, -52, 61, 52, -61, 61, -52,
- -61, 52, 52, 120, -52, -120, 120, 52,
- -120, -52, -45, 75, 45, -75, 75, -45,
- -75, 45, 75, 125, -75, -125, 125, 75,
- -125, -75, 33, 122, -33, -122, 122, 33,
- -122, -33, -13, 103, 13, -103, 103, -13,
- -103, 13, -40, 96, 40, -96, 96, -40,
- -96, 40, -34, 127, 34, -127, 127, -34,
- -127, 34, -89, 89, 89, -89, -78, 105,
- 78, -105, 105, -78, -105, 78, 12, 12,
- -12, -12, 23, 23, -23, -23, 42, 42,
- -42, -42, 73, 73, -73, -73,
-]};
-
-const DT_1_2: IviDeltaCB = IviDeltaCB{ quad_radix: 9, data: &[
- 0, 0, 3, 3, -3, -3, -1, 4,
- 1, -4, 4, -1, -4, 1, 7, 7,
- -7, -7, 2, 8, -2, -8, 8, 2,
- -8, -2, -2, 9, 2, -9, 9, -2,
- -9, 2, -6, 6, 6, -6, 6, 13,
- -6, -13, 13, 6, -13, -6, 13, 13,
- -13, -13, 1, 14, -1, -14, 14, 1,
- -14, -1, -8, 12, 8, -12, 12, -8,
- -12, 8, 14, 23, -14, -23, 23, 14,
- -23, -14, -5, 18, 5, -18, 18, -5,
- -18, 5, 6, 24, -6, -24, 24, 6,
- -24, -6, 24, 24, -24, -24, -1, 27,
- 1, -27, 27, -1, -27, 1, -17, 17,
- 17, -17, -13, 23, 13, -23, 23, -13,
- -23, 13, 16, 40, -16, -40, 40, 16,
- -40, -16, 28, 41, -28, -41, 41, 28,
- -41, -28, -9, 33, 9, -33, 33, -9,
- -33, 9, 6, 43, -6, -43, 43, 6,
- -43, -6, 46, 46, -46, -46, -4, 50,
- 4, -50, 50, -4, -50, 4, -27, 34,
- 27, -34, 34, -27, -34, 27, -22, 45,
- 22, -45, 45, -22, -45, 22, 34, 69,
- -34, -69, 69, 34, -69, -34, 19, 70,
- -19, -70, 70, 19, -70, -19, 53, 73,
- -53, -73, 73, 53, -73, -53, -17, 62,
- 17, -62, 62, -17, -62, 17, 5, 77,
- -5, -77, 77, 5, -77, -5, 82, 82,
- -82, -82, -51, 51, 51, -51, -43, 64,
- 43, -64, 64, -43, -64, 43, -10, 90,
- 10, -90, 90, -10, -90, 10, 41, 114,
- -41, -114, 114, 41, -114, -41, 64, 116,
- -64, -116, 116, 64, -116, -64, -37, 82,
- 37, -82, 82, -37, -82, 37, 22, 119,
- -22, -119, 119, 22, -119, -22, 95, 124,
- -95, -124, 124, 95, -124, -95, -30, 111,
- 30, -111, 111, -30, -111, 30, -78, 92,
- 78, -92, 92, -78, -92, 78, -68, 113,
- 68, -113, 113, -68, -113, 68, 18, 18,
- -18, -18, 34, 34, -34, -34, 63, 63,
- -63, -63, 109, 109, -109, -109,
-]};
-
-const DT_1_3: IviDeltaCB = IviDeltaCB{ quad_radix: 10, data: &[
- 0, 0, 4, 4, -4, -4, -1, 5,
- 1, -5, 5, -1, -5, 1, 3, 10,
- -3, -10, 10, 3, -10, -3, 9, 9,
- -9, -9, -7, 7, 7, -7, -3, 12,
- 3, -12, 12, -3, -12, 3, 8, 17,
- -8, -17, 17, 8, -17, -8, 17, 17,
- -17, -17, 1, 19, -1, -19, 19, 1,
- -19, -1, -11, 16, 11, -16, 16, -11,
- -16, 11, -6, 23, 6, -23, 23, -6,
- -23, 6, 18, 31, -18, -31, 31, 18,
- -31, -18, 8, 32, -8, -32, 32, 8,
- -32, -8, 33, 33, -33, -33, -1, 36,
- 1, -36, 36, -1, -36, 1, -23, 23,
- 23, -23, -17, 31, 17, -31, 31, -17,
- -31, 17, 21, 54, -21, -54, 54, 21,
- -54, -21, 37, 55, -37, -55, 55, 37,
- -55, -37, -12, 44, 12, -44, 44, -12,
- -44, 12, 8, 57, -8, -57, 57, 8,
- -57, -8, 61, 61, -61, -61, -5, 66,
- 5, -66, 66, -5, -66, 5, -36, 45,
- 36, -45, 45, -36, -45, 36, -29, 60,
- 29, -60, 60, -29, -60, 29, 45, 92,
- -45, -92, 92, 45, -92, -45, 25, 93,
- -25, -93, 93, 25, -93, -25, 71, 97,
- -71, -97, 97, 71, -97, -71, -22, 83,
- 22, -83, 83, -22, -83, 22, 7, 102,
- -7, -102, 102, 7, -102, -7, 109, 109,
- -109, -109, -68, 68, 68, -68, -57, 85,
- 57, -85, 85, -57, -85, 57, -13, 120,
- 13, -120, 120, -13, -120, 13, -49, 110,
- 49, -110, 110, -49, -110, 49, -104, 123,
- 104, -123, 123, -104, -123, 104, 24, 24,
- -24, -24, 46, 46, -46, -46, 84, 84,
- -84, -84,
-]};
-
-const DT_1_4: IviDeltaCB = IviDeltaCB{ quad_radix: 11, data: &[
- 0, 0, 5, 5, -5, -5, -2, 7,
- 2, -7, 7, -2, -7, 2, 11, 11,
- -11, -11, 3, 13, -3, -13, 13, 3,
- -13, -3, -9, 9, 9, -9, -4, 15,
- 4, -15, 15, -4, -15, 4, 11, 22,
- -11, -22, 22, 11, -22, -11, 21, 21,
- -21, -21, 2, 24, -2, -24, 24, 2,
- -24, -2, -14, 20, 14, -20, 20, -14,
- -20, 14, 23, 38, -23, -38, 38, 23,
- -38, -23, -8, 29, 8, -29, 29, -8,
- -29, 8, 11, 39, -11, -39, 39, 11,
- -39, -11, 41, 41, -41, -41, -1, 45,
- 1, -45, 45, -1, -45, 1, -29, 29,
- 29, -29, -22, 39, 22, -39, 39, -22,
- -39, 22, 27, 67, -27, -67, 67, 27,
- -67, -27, 47, 69, -47, -69, 69, 47,
- -69, -47, -15, 56, 15, -56, 56, -15,
- -56, 15, 11, 71, -11, -71, 71, 11,
- -71, -11, 76, 76, -76, -76, -6, 83,
- 6, -83, 83, -6, -83, 6, -45, 57,
- 45, -57, 57, -45, -57, 45, -36, 75,
- 36, -75, 75, -36, -75, 36, 56, 115,
- -56, -115, 115, 56, -115, -56, 31, 117,
- -31, -117, 117, 31, -117, -31, 88, 122,
- -88, -122, 122, 88, -122, -88, -28, 104,
- 28, -104, 104, -28, -104, 28, -85, 85,
- 85, -85, -72, 106, 72, -106, 106, -72,
- -106, 72, 30, 30, -30, -30, 58, 58,
- -58, -58, 105, 105, -105, -105,
-]};
-
-const DT_1_5: IviDeltaCB = IviDeltaCB{ quad_radix: 12, data: &[
- 0, 0, 6, 6, -6, -6, -2, 8,
- 2, -8, 8, -2, -8, 2, 13, 13,
- -13, -13, 4, 15, -4, -15, 15, 4,
- -15, -4, -11, 11, 11, -11, -5, 18,
- 5, -18, 18, -5, -18, 5, 13, 26,
- -13, -26, 26, 13, -26, -13, 26, 26,
- -26, -26, 2, 29, -2, -29, 29, 2,
- -29, -2, -16, 24, 16, -24, 24, -16,
- -24, 16, 28, 46, -28, -46, 46, 28,
- -46, -28, -9, 35, 9, -35, 35, -9,
- -35, 9, 13, 47, -13, -47, 47, 13,
- -47, -13, 49, 49, -49, -49, -1, 54,
- 1, -54, 54, -1, -54, 1, -35, 35,
- 35, -35, -26, 47, 26, -47, 47, -26,
- -47, 26, 32, 81, -32, -81, 81, 32,
- -81, -32, 56, 83, -56, -83, 83, 56,
- -83, -56, -18, 67, 18, -67, 67, -18,
- -67, 18, 13, 86, -13, -86, 86, 13,
- -86, -13, 91, 91, -91, -91, -7, 99,
- 7, -99, 99, -7, -99, 7, -54, 68,
- 54, -68, 68, -54, -68, 54, -44, 90,
- 44, -90, 90, -44, -90, 44, -33, 124,
- 33, -124, 124, -33, -124, 33, -103, 103,
- 103, -103, -86, 127, 86, -127, 127, -86,
- -127, 86, 37, 37, -37, -37, 69, 69,
- -69, -69,
-]};
-
-const DT_1_6: IviDeltaCB = IviDeltaCB{ quad_radix: 12, data: &[
- 0, 0, 7, 7, -7, -7, -3, 10,
- 3, -10, 10, -3, -10, 3, 16, 16,
- -16, -16, 5, 18, -5, -18, 18, 5,
- -18, -5, -13, 13, 13, -13, -6, 21,
- 6, -21, 21, -6, -21, 6, 15, 30,
- -15, -30, 30, 15, -30, -15, 30, 30,
- -30, -30, 2, 34, -2, -34, 34, 2,
- -34, -2, -19, 28, 19, -28, 28, -19,
- -28, 19, 32, 54, -32, -54, 54, 32,
- -54, -32, -11, 41, 11, -41, 41, -11,
- -41, 11, 15, 55, -15, -55, 55, 15,
- -55, -15, 57, 57, -57, -57, -1, 63,
- 1, -63, 63, -1, -63, 1, -40, 40,
- 40, -40, -30, 55, 30, -55, 55, -30,
- -55, 30, 37, 94, -37, -94, 94, 37,
- -94, -37, 65, 96, -65, -96, 96, 65,
- -96, -65, -21, 78, 21, -78, 78, -21,
- -78, 21, 15, 100, -15, -100, 100, 15,
- -100, -15, 106, 106, -106, -106, -8, 116,
- 8, -116, 116, -8, -116, 8, -63, 79,
- 63, -79, 79, -63, -79, 63, -51, 105,
- 51, -105, 105, -51, -105, 51, -120, 120,
- 120, -120, 43, 43, -43, -43, 80, 80,
- -80, -80,
-]};
-
-const DT_1_7: IviDeltaCB = IviDeltaCB{ quad_radix: 12, data: &[
- 0, 0, 8, 8, -8, -8, -3, 11,
- 3, -11, 11, -3, -11, 3, 18, 18,
- -18, -18, 5, 20, -5, -20, 20, 5,
- -20, -5, -15, 15, 15, -15, -7, 24,
- 7, -24, 24, -7, -24, 7, 17, 35,
- -17, -35, 35, 17, -35, -17, 34, 34,
- -34, -34, 3, 38, -3, -38, 38, 3,
- -38, -3, -22, 32, 22, -32, 32, -22,
- -32, 22, 37, 61, -37, -61, 61, 37,
- -61, -37, -13, 47, 13, -47, 47, -13,
- -47, 13, 17, 63, -17, -63, 63, 17,
- -63, -17, 65, 65, -65, -65, -1, 72,
- 1, -72, 72, -1, -72, 1, -46, 46,
- 46, -46, -35, 63, 35, -63, 63, -35,
- -63, 35, 43, 107, -43, -107, 107, 43,
- -107, -43, 75, 110, -75, -110, 110, 75,
- -110, -75, -24, 89, 24, -89, 89, -24,
- -89, 24, 17, 114, -17, -114, 114, 17,
- -114, -17, 121, 121, -121, -121, -72, 91,
- 72, -91, 91, -72, -91, 72, -58, 120,
- 58, -120, 120, -58, -120, 58, 49, 49,
- -49, -49, 92, 92, -92, -92,
-]};
-
-const DT_1_8: IviDeltaCB = IviDeltaCB{ quad_radix: 13, data: &[
- 0, 0, 9, 9, -9, -9, -3, 12,
- 3, -12, 12, -3, -12, 3, 20, 20,
- -20, -20, 6, 23, -6, -23, 23, 6,
- -23, -6, -17, 17, 17, -17, -7, 27,
- 7, -27, 27, -7, -27, 7, 19, 39,
- -19, -39, 39, 19, -39, -19, 39, 39,
- -39, -39, 3, 43, -3, -43, 43, 3,
- -43, -3, -24, 36, 24, -36, 36, -24,
- -36, 24, 42, 69, -42, -69, 69, 42,
- -69, -42, -14, 53, 14, -53, 53, -14,
- -53, 14, 19, 71, -19, -71, 71, 19,
- -71, -19, 73, 73, -73, -73, -2, 80,
- 2, -80, 80, -2, -80, 2, -52, 52,
- 52, -52, -39, 70, 39, -70, 70, -39,
- -70, 39, 48, 121, -48, -121, 121, 48,
- -121, -48, 84, 124, -84, -124, 124, 84,
- -124, -84, -27, 100, 27, -100, 100, -27,
- -100, 27, -81, 102, 81, -102, 102, -81,
- -102, 81, 55, 55, -55, -55, 104, 104,
- -104, -104,
-]};
-
-const DT_2_1: IviDeltaCB = IviDeltaCB{ quad_radix: 7, data: &[
- 0, 0, 2, 2, -2, -2, 0, 2,
- 0, -2, 2, 0, -2, 0, 4, 4,
- -4, -4, 0, 4, 0, -4, 4, 0,
- -4, 0, -4, 4, 4, -4, -2, 6,
- 2, -6, 6, -2, -6, 2, 4, 8,
- -4, -8, 8, 4, -8, -4, 8, 8,
- -8, -8, 0, 10, 0, -10, 10, 0,
- -10, 0, -4, 8, 4, -8, 8, -4,
- -8, 4, 8, 14, -8, -14, 14, 8,
- -14, -8, -2, 12, 2, -12, 12, -2,
- -12, 2, 4, 16, -4, -16, 16, 4,
- -16, -4, 16, 16, -16, -16, 0, 18,
- 0, -18, 18, 0, -18, 0, -12, 12,
- 12, -12, -8, 16, 8, -16, 16, -8,
- -16, 8, 10, 26, -10, -26, 26, 10,
- -26, -10, 18, 28, -18, -28, 28, 18,
- -28, -18, -6, 22, 6, -22, 22, -6,
- -22, 6, 4, 28, -4, -28, 28, 4,
- -28, -4, 30, 30, -30, -30, -2, 32,
- 2, -32, 32, -2, -32, 2, -18, 22,
- 18, -22, 22, -18, -22, 18, -14, 30,
- 14, -30, 30, -14, -30, 14, 22, 46,
- -22, -46, 46, 22, -46, -22, 12, 46,
- -12, -46, 46, 12, -46, -12, 34, 48,
- -34, -48, 48, 34, -48, -34, -10, 40,
- 10, -40, 40, -10, -40, 10, 4, 50,
- -4, -50, 50, 4, -50, -4, 54, 54,
- -54, -54, -34, 34, 34, -34, -28, 42,
- 28, -42, 42, -28, -42, 28, -6, 60,
- 6, -60, 60, -6, -60, 6, 26, 76,
- -26, -76, 76, 26, -76, -26, 42, 76,
- -42, -76, 76, 42, -76, -42, -24, 54,
- 24, -54, 54, -24, -54, 24, 14, 78,
- -14, -78, 78, 14, -78, -14, 62, 82,
- -62, -82, 82, 62, -82, -62, -20, 74,
- 20, -74, 74, -20, -74, 20, 2, 88,
- -2, -88, 88, 2, -88, -2, 92, 92,
- -92, -92, -52, 60, 52, -60, 60, -52,
- -60, 52, 52, 118, -52, -118, 118, 52,
- -118, -52, -44, 74, 44, -74, 74, -44,
- -74, 44, 74, 118, -74, -118, 118, 74,
- -118, -74, 32, 118, -32, -118, 118, 32,
- -118, -32, -12, 102, 12, -102, 102, -12,
- -102, 12, -40, 96, 40, -96, 96, -40,
- -96, 40, -34, 118, 34, -118, 118, -34,
- -118, 34, -88, 88, 88, -88, -78, 104,
- 78, -104, 104, -78, -104, 78, 12, 12,
- -12, -12, 22, 22, -22, -22, 42, 42,
- -42, -42, 72, 72, -72, -72,
-]};
-
-const DT_2_2: IviDeltaCB = IviDeltaCB{ quad_radix: 9, data: &[
- 0, 0, 3, 3, -3, -3, 0, 3,
- 0, -3, 3, 0, -3, 0, 6, 6,
- -6, -6, 3, 9, -3, -9, 9, 3,
- -9, -3, -3, 9, 3, -9, 9, -3,
- -9, 3, -6, 6, 6, -6, 6, 12,
- -6, -12, 12, 6, -12, -6, 12, 12,
- -12, -12, 0, 15, 0, -15, 15, 0,
- -15, 0, -9, 12, 9, -12, 12, -9,
- -12, 9, 15, 24, -15, -24, 24, 15,
- -24, -15, -6, 18, 6, -18, 18, -6,
- -18, 6, 6, 24, -6, -24, 24, 6,
- -24, -6, 24, 24, -24, -24, 0, 27,
- 0, -27, 27, 0, -27, 0, -18, 18,
- 18, -18, -12, 24, 12, -24, 24, -12,
- -24, 12, 15, 39, -15, -39, 39, 15,
- -39, -15, 27, 42, -27, -42, 42, 27,
- -42, -27, -9, 33, 9, -33, 33, -9,
- -33, 9, 6, 42, -6, -42, 42, 6,
- -42, -6, 45, 45, -45, -45, -3, 51,
- 3, -51, 51, -3, -51, 3, -27, 33,
- 27, -33, 33, -27, -33, 27, -21, 45,
- 21, -45, 45, -21, -45, 21, 33, 69,
- -33, -69, 69, 33, -69, -33, 18, 69,
- -18, -69, 69, 18, -69, -18, 54, 72,
- -54, -72, 72, 54, -72, -54, -18, 63,
- 18, -63, 63, -18, -63, 18, 6, 78,
- -6, -78, 78, 6, -78, -6, 81, 81,
- -81, -81, -51, 51, 51, -51, -42, 63,
- 42, -63, 63, -42, -63, 42, -9, 90,
- 9, -90, 90, -9, -90, 9, 42, 114,
- -42, -114, 114, 42, -114, -42, 63, 117,
- -63, -117, 117, 63, -117, -63, -36, 81,
- 36, -81, 81, -36, -81, 36, 21, 120,
- -21, -120, 120, 21, -120, -21, 96, 123,
- -96, -123, 123, 96, -123, -96, -30, 111,
- 30, -111, 111, -30, -111, 30, -78, 93,
- 78, -93, 93, -78, -93, 78, -69, 114,
- 69, -114, 114, -69, -114, 69, 18, 18,
- -18, -18, 33, 33, -33, -33, 63, 63,
- -63, -63, 108, 108, -108, -108,
-]};
-
-const DT_2_3: IviDeltaCB = IviDeltaCB{ quad_radix: 10, data: &[
- 0, 0, 4, 4, -4, -4, 0, 4,
- 0, -4, 4, 0, -4, 0, 4, 8,
- -4, -8, 8, 4, -8, -4, 8, 8,
- -8, -8, -8, 8, 8, -8, -4, 12,
- 4, -12, 12, -4, -12, 4, 8, 16,
- -8, -16, 16, 8, -16, -8, 16, 16,
- -16, -16, 0, 20, 0, -20, 20, 0,
- -20, 0, -12, 16, 12, -16, 16, -12,
- -16, 12, -4, 24, 4, -24, 24, -4,
- -24, 4, 16, 32, -16, -32, 32, 16,
- -32, -16, 8, 32, -8, -32, 32, 8,
- -32, -8, 32, 32, -32, -32, 0, 36,
- 0, -36, 36, 0, -36, 0, -24, 24,
- 24, -24, -16, 32, 16, -32, 32, -16,
- -32, 16, 20, 52, -20, -52, 52, 20,
- -52, -20, 36, 56, -36, -56, 56, 36,
- -56, -36, -12, 44, 12, -44, 44, -12,
- -44, 12, 8, 56, -8, -56, 56, 8,
- -56, -8, 60, 60, -60, -60, -4, 64,
- 4, -64, 64, -4, -64, 4, -36, 44,
- 36, -44, 44, -36, -44, 36, -28, 60,
- 28, -60, 60, -28, -60, 28, 44, 92,
- -44, -92, 92, 44, -92, -44, 24, 92,
- -24, -92, 92, 24, -92, -24, 72, 96,
- -72, -96, 96, 72, -96, -72, -20, 84,
- 20, -84, 84, -20, -84, 20, 8, 100,
- -8, -100, 100, 8, -100, -8, 108, 108,
- -108, -108, -68, 68, 68, -68, -56, 84,
- 56, -84, 84, -56, -84, 56, -12, 120,
- 12, -120, 120, -12, -120, 12, -48, 108,
- 48, -108, 108, -48, -108, 48, -104, 124,
- 104, -124, 124, -104, -124, 104, 24, 24,
- -24, -24, 44, 44, -44, -44, 84, 84,
- -84, -84,
-]};
-
-const DT_2_4: IviDeltaCB = IviDeltaCB{ quad_radix: 11, data: &[
- 0, 0, 5, 5, -5, -5, 0, 5,
- 0, -5, 5, 0, -5, 0, 10, 10,
- -10, -10, 5, 15, -5, -15, 15, 5,
- -15, -5, -10, 10, 10, -10, -5, 15,
- 5, -15, 15, -5, -15, 5, 10, 20,
- -10, -20, 20, 10, -20, -10, 20, 20,
- -20, -20, 0, 25, 0, -25, 25, 0,
- -25, 0, -15, 20, 15, -20, 20, -15,
- -20, 15, 25, 40, -25, -40, 40, 25,
- -40, -25, -10, 30, 10, -30, 30, -10,
- -30, 10, 10, 40, -10, -40, 40, 10,
- -40, -10, 40, 40, -40, -40, 0, 45,
- 0, -45, 45, 0, -45, 0, -30, 30,
- 30, -30, -20, 40, 20, -40, 40, -20,
- -40, 20, 25, 65, -25, -65, 65, 25,
- -65, -25, 45, 70, -45, -70, 70, 45,
- -70, -45, -15, 55, 15, -55, 55, -15,
- -55, 15, 10, 70, -10, -70, 70, 10,
- -70, -10, 75, 75, -75, -75, -5, 85,
- 5, -85, 85, -5, -85, 5, -45, 55,
- 45, -55, 55, -45, -55, 45, -35, 75,
- 35, -75, 75, -35, -75, 35, 55, 115,
- -55, -115, 115, 55, -115, -55, 30, 115,
- -30, -115, 115, 30, -115, -30, 90, 120,
- -90, -120, 120, 90, -120, -90, -30, 105,
- 30, -105, 105, -30, -105, 30, -85, 85,
- 85, -85, -70, 105, 70, -105, 105, -70,
- -105, 70, 30, 30, -30, -30, 60, 60,
- -60, -60, 105, 105, -105, -105,
-]};
-
-const DT_2_5: IviDeltaCB = IviDeltaCB{ quad_radix: 12, data: &[
- 0, 0, 6, 6, -6, -6, 0, 6,
- 0, -6, 6, 0, -6, 0, 12, 12,
- -12, -12, 6, 12, -6, -12, 12, 6,
- -12, -6, -12, 12, 12, -12, -6, 18,
- 6, -18, 18, -6, -18, 6, 12, 24,
- -12, -24, 24, 12, -24, -12, 24, 24,
- -24, -24, 0, 30, 0, -30, 30, 0,
- -30, 0, -18, 24, 18, -24, 24, -18,
- -24, 18, 30, 48, -30, -48, 48, 30,
- -48, -30, -6, 36, 6, -36, 36, -6,
- -36, 6, 12, 48, -12, -48, 48, 12,
- -48, -12, 48, 48, -48, -48, 0, 54,
- 0, -54, 54, 0, -54, 0, -36, 36,
- 36, -36, -24, 48, 24, -48, 48, -24,
- -48, 24, 30, 78, -30, -78, 78, 30,
- -78, -30, 54, 84, -54, -84, 84, 54,
- -84, -54, -18, 66, 18, -66, 66, -18,
- -66, 18, 12, 84, -12, -84, 84, 12,
- -84, -12, 90, 90, -90, -90, -6, 96,
- 6, -96, 96, -6, -96, 6, -54, 66,
- 54, -66, 66, -54, -66, 54, -42, 90,
- 42, -90, 90, -42, -90, 42, -30, 126,
- 30, -126, 126, -30, -126, 30, -102, 102,
- 102, -102, -84, 126, 84, -126, 126, -84,
- -126, 84, 36, 36, -36, -36, 66, 66,
- -66, -66,
-]};
-
-const DT_2_6: IviDeltaCB = IviDeltaCB{ quad_radix: 12, data: &[
- 0, 0, 7, 7, -7, -7, 0, 7,
- 0, -7, 7, 0, -7, 0, 14, 14,
- -14, -14, 7, 21, -7, -21, 21, 7,
- -21, -7, -14, 14, 14, -14, -7, 21,
- 7, -21, 21, -7, -21, 7, 14, 28,
- -14, -28, 28, 14, -28, -14, 28, 28,
- -28, -28, 0, 35, 0, -35, 35, 0,
- -35, 0, -21, 28, 21, -28, 28, -21,
- -28, 21, 35, 56, -35, -56, 56, 35,
- -56, -35, -14, 42, 14, -42, 42, -14,
- -42, 14, 14, 56, -14, -56, 56, 14,
- -56, -14, 56, 56, -56, -56, 0, 63,
- 0, -63, 63, 0, -63, 0, -42, 42,
- 42, -42, -28, 56, 28, -56, 56, -28,
- -56, 28, 35, 91, -35, -91, 91, 35,
- -91, -35, 63, 98, -63, -98, 98, 63,
- -98, -63, -21, 77, 21, -77, 77, -21,
- -77, 21, 14, 98, -14, -98, 98, 14,
- -98, -14, 105, 105, -105, -105, -7, 119,
- 7, -119, 119, -7, -119, 7, -63, 77,
- 63, -77, 77, -63, -77, 63, -49, 105,
- 49, -105, 105, -49, -105, 49, -119, 119,
- 119, -119, 42, 42, -42, -42, 77, 77,
- -77, -77,
-]};
-
-const DT_2_7: IviDeltaCB = IviDeltaCB{ quad_radix: 12, data: &[
- 0, 0, 8, 8, -8, -8, 0, 8,
- 0, -8, 8, 0, -8, 0, 16, 16,
- -16, -16, 8, 16, -8, -16, 16, 8,
- -16, -8, -16, 16, 16, -16, -8, 24,
- 8, -24, 24, -8, -24, 8, 16, 32,
- -16, -32, 32, 16, -32, -16, 32, 32,
- -32, -32, 0, 40, 0, -40, 40, 0,
- -40, 0, -24, 32, 24, -32, 32, -24,
- -32, 24, 40, 64, -40, -64, 64, 40,
- -64, -40, -16, 48, 16, -48, 48, -16,
- -48, 16, 16, 64, -16, -64, 64, 16,
- -64, -16, 64, 64, -64, -64, 0, 72,
- 0, -72, 72, 0, -72, 0, -48, 48,
- 48, -48, -32, 64, 32, -64, 64, -32,
- -64, 32, 40, 104, -40, -104, 104, 40,
- -104, -40, 72, 112, -72, -112, 112, 72,
- -112, -72, -24, 88, 24, -88, 88, -24,
- -88, 24, 16, 112, -16, -112, 112, 16,
- -112, -16, 120, 120, -120, -120, -72, 88,
- 72, -88, 88, -72, -88, 72, -56, 120,
- 56, -120, 120, -56, -120, 56, 48, 48,
- -48, -48, 88, 88, -88, -88,
-]};
-
-const DT_2_8: IviDeltaCB = IviDeltaCB{ quad_radix: 13, data: &[
- 0, 0, 9, 9, -9, -9, 0, 9,
- 0, -9, 9, 0, -9, 0, 18, 18,
- -18, -18, 9, 27, -9, -27, 27, 9,
- -27, -9, -18, 18, 18, -18, -9, 27,
- 9, -27, 27, -9, -27, 9, 18, 36,
- -18, -36, 36, 18, -36, -18, 36, 36,
- -36, -36, 0, 45, 0, -45, 45, 0,
- -45, 0, -27, 36, 27, -36, 36, -27,
- -36, 27, 45, 72, -45, -72, 72, 45,
- -72, -45, -18, 54, 18, -54, 54, -18,
- -54, 18, 18, 72, -18, -72, 72, 18,
- -72, -18, 72, 72, -72, -72, 0, 81,
- 0, -81, 81, 0, -81, 0, -54, 54,
- 54, -54, -36, 72, 36, -72, 72, -36,
- -72, 36, 45, 117, -45, -117, 117, 45,
- -117, -45, 81, 126, -81, -126, 126, 81,
- -126, -81, -27, 99, 27, -99, 99, -27,
- -99, 27, -81, 99, 81, -99, 99, -81,
- -99, 81, 54, 54, -54, -54, 108, 108,
- -108, -108,
-]};
-
-const DT_3_1: IviDeltaCB = IviDeltaCB{ quad_radix: 11, data: &[
- 0, 0, 2, 2, -2, -2, 0, 3,
- 0, -3, 3, 0, -3, 0, 6, 6,
- -6, -6, 0, 7, 0, -7, 7, 0,
- -7, 0, -5, 5, 5, -5, 5, -5,
- -5, 5, 6, 11, -6, -11, 11, 6,
- -11, -6, 0, 8, 0, -8, 8, 0,
- -8, 0, 11, 11, -11, -11, 0, 12,
- 0, -12, 12, 0, -12, 0, 12, 17,
- -12, -17, 17, 12, -17, -12, 17, 17,
- -17, -17, 6, 18, -6, -18, 18, 6,
- -18, -6, -8, 11, 8, -11, 11, -8,
- -11, 8, 0, 15, 0, -15, 15, 0,
- -15, 0, 0, 20, 0, -20, 20, 0,
- -20, 0, 18, 25, -18, -25, 25, 18,
- -25, -18, 11, 25, -11, -25, 25, 11,
- -25, -11, 25, 25, -25, -25, -14, 14,
- 14, -14, 14, -14, -14, 14, 0, 26,
- 0, -26, 26, 0, -26, 0, -11, 18,
- 11, -18, 18, -11, -18, 11, -7, 22,
- 7, -22, 22, -7, -22, 7, 26, 34,
- -26, -34, 34, 26, -34, -26, 18, 34,
- -18, -34, 34, 18, -34, -18, 34, 34,
- -34, -34, 11, 35, -11, -35, 35, 11,
- -35, -11, 0, 29, 0, -29, 29, 0,
- -29, 0, -19, 22, 19, -22, 22, -19,
- -22, 19, -15, 26, 15, -26, 26, -15,
- -26, 15, 0, 37, 0, -37, 37, 0,
- -37, 0, 27, 44, -27, -44, 44, 27,
- -44, -27, 36, 44, -36, -44, 44, 36,
- -44, -36, 18, 44, -18, -44, 44, 18,
- -44, -18, -10, 33, 10, -33, 33, -10,
- -33, 10, 45, 45, -45, -45, 0, 0,
-]};
-
-const DT_3_2: IviDeltaCB = IviDeltaCB{ quad_radix: 13, data: &[
- 0, 0, 0, 2, 0, -2, 2, 0,
- -2, 0, 2, 2, -2, -2, 6, 6,
- -6, -6, 0, 6, 0, -6, 6, 0,
- -6, 0, -4, 4, 4, -4, 10, -6,
- -10, 6, 0, -12, 0, 12, -6, -12,
- 6, -12, -6, 12, 6, 12, -14, 0,
- 14, 0, 12, 12, -12, -12, 0, -18,
- 0, 18, 14, -12, -14, 12, -18, -6,
- 18, -6, -18, 6, 18, 6, -10, -18,
- 10, -18, -10, 18, 10, 18, -22, 0,
- 22, 0, 0, -24, 0, 24, -22, -12,
- 22, -12, -22, 12, 22, 12, -8, -24,
- 8, -24, -8, 24, 8, 24, -26, -6,
- 26, -6, -26, 6, 26, 6, -28, 0,
- 28, 0, 20, 20, -20, -20, -14, -26,
- 14, 26, -30, -12, 30, 12, -10, -32,
- 10, 32, -18, -32, 18, 32, -26, -26,
- 26, 26, -34, -20, 34, 20, -38, -12,
- 38, 12, -32, -32, 32, 32, 32, 32,
- -22, -40, -34, -34, 34, 34,
-]};
-
-const DT_3_3: IviDeltaCB = IviDeltaCB{ quad_radix: 13, data: &[
- 0, 0, 0, 2, 0, -2, 2, 0,
- -2, 0, 4, 4, -4, -4, 10, 10,
- -10, -10, 0, 10, 0, -10, 10, 0,
- -10, 0, -6, 6, 6, -6, 14, -8,
- -14, 8, -18, 0, 18, 0, 10, -16,
- -10, 16, 0, -24, 0, 24, -24, -8,
- 24, -8, -24, 8, 24, 8, 18, 18,
- -18, -18, 20, -16, -20, 16, -14, -26,
- 14, -26, -14, 26, 14, 26, -30, 0,
- 30, 0, 0, -34, 0, 34, -34, -8,
- 34, -8, -34, 8, 34, 8, -30, -18,
- 30, -18, -30, 18, 30, 18, -10, -34,
- 10, -34, -10, 34, 10, 34, -20, -34,
- 20, 34, -40, 0, 40, 0, 30, 30,
- -30, -30, -40, -18, 40, 18, 0, -44,
- 0, 44, -16, -44, 16, 44, -36, -36,
- -36, -36, 36, 36, -26, -44, 26, 44,
- -46, -26, 46, 26, -52, -18, 52, 18,
- -20, -54, -44, -44, 44, 44, -32, -54,
- -46, -46, -46, -46, 46, 46,
-]};
-
-const DT_3_4: IviDeltaCB = IviDeltaCB{ quad_radix: 13, data: &[
- 0, 0, 0, 4, 0, -4, 4, 0,
- -4, 0, 4, 4, -4, -4, 12, 12,
- -12, -12, 0, 12, 0, -12, 12, 0,
- -12, 0, -8, 8, 8, -8, 8, -16,
- -8, 16, 0, -24, 0, 24, -24, -8,
- 24, -8, -24, 8, 24, 8, 20, -16,
- -20, 16, -28, 0, 28, 0, -16, -24,
- 16, -24, -16, 24, 16, 24, 0, -32,
- 0, 32, -28, -16, 28, -16, -28, 16,
- 28, 16, -8, -32, 8, -32, -32, -8,
- 32, -8, -32, 8, 32, 8, -8, 32,
- 8, 32, 24, 24, -24, -24, 24, -24,
- -24, 24, -20, -32, 20, 32, -40, 0,
- 40, 0, -40, -16, 40, 16, 0, -44,
- 0, -44, -44, 0, 44, 0, 0, 44,
- 0, 44, -32, -32, 32, 32, -16, -44,
- 16, 44, -24, -44, -44, -24, 44, 24,
- 24, 44, -48, -16, 48, 16, -36, -36,
- -36, -36, 36, 36, 36, 36, -20, -52,
- 40, 40, -40, -40, -32, -52,
-]};
-
-const DT_3_5: IviDeltaCB = IviDeltaCB{ quad_radix: 13, data: &[
- 0, 0, 2, 2, -2, -2, 6, 6,
- -6, -6, 12, 12, -12, -12, 20, 20,
- -20, -20, 32, 32, -32, -32, 46, 46,
- -46, -46, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0,
-]};
-
-const IVI3_DELTA_CBS: [&IviDeltaCB; 24] = [
- &DT_1_1, &DT_1_2, &DT_1_3, &DT_1_4, &DT_1_5, &DT_1_6, &DT_1_7, &DT_1_8,
- &DT_2_1, &DT_2_2, &DT_2_3, &DT_2_4, &DT_2_5, &DT_2_6, &DT_2_7, &DT_2_8,
- &DT_3_1, &DT_3_2, &DT_3_3, &DT_3_4, &DT_3_5, &DT_3_5, &DT_3_5, &DT_3_5
-];
+use nihav_core::formats;
+use nihav_core::codecs::*;
+use nihav_core::io::byteio::*;
+use std::io::SeekFrom;
+use super::indeo3data::*;
+
+const DEFAULT_PIXEL: u8 = 0x40;
+const STRIP_WIDTH: u8 = 160;
+const FRMH_TAG: u32 = ((b'F' as u32) << 24) | ((b'R' as u32) << 16)
+ | ((b'M' as u32) << 8) | (b'H' as u32);
+
+const FLAG_8BIT: u16 = 1 << 1;
+const FLAG_KEYFRAME: u16 = 1 << 2;
+const FLAG_BUFSEL: u16 = 1 << 9;
+
+const MAX_DEPTH: u8 = 20;
+
+const H_SPLIT: u8 = 0;
+const V_SPLIT: u8 = 1;
+const ABS_FILL: u8 = 2;
+const REL_FILL: u8 = 3;
+const VQ_NULL: u8 = 2;
+const VQ_DATA: u8 = 3;
+
+type RequantTab = [[u8; 128]; 8];
+
+trait AddDelta {
+ fn add_delta(&mut self, delta: i8) -> DecoderResult<()>;
+}
+
+impl AddDelta for u8 {
+ fn add_delta(&mut self, delta: i8) -> DecoderResult<()> {
+ *self = self.wrapping_add(delta as u8);
+ validate!((*self & 0x80) == 0);
+ Ok(())
+ }
+}
+
+#[derive(Clone, Copy)]
+struct MV {
+ x: i8,
+ y: i8
+}
+
+struct Header {
+ vq_offset: u8,
+ alt_quant: [u8; 16],
+ mvs: [MV; 256],
+ num_mvs: usize,
+ data_start: [u64; 3],
+ data_end: [u64; 3],
+ is_intra: bool,
+}
+
+impl Header {
+ fn new() -> Self {
+ Self {
+ vq_offset: 0,
+ alt_quant: [0; 16],
+ mvs: [MV { x: 0, y: 0 }; 256],
+ num_mvs: 0,
+ data_start: [0; 3],
+ data_end: [0; 3],
+ is_intra: false,
+ }
+ }
+}
+
+struct DataReader<'a, 'b> {
+ br: &'a mut ByteReader<'b>,
+ bpos: u8,
+ bitbuf: u8,
+}
+
+impl<'a, 'b> DataReader<'a, 'b> {
+ fn new(br: &'a mut ByteReader<'b>) -> Self {
+ Self {
+ br,
+ bpos: 0,
+ bitbuf: 0,
+ }
+ }
+ fn read_2bits(&mut self) -> DecoderResult<u8> {
+ if self.bpos == 0 {
+ self.bitbuf = self.br.read_byte()?;
+ self.bpos = 8;
+ }
+ self.bpos -= 2;
+ let bits = (self.bitbuf >> self.bpos) & 3;
+ Ok(bits)
+ }
+ fn read_byte(&mut self) -> DecoderResult<u8> {
+ Ok(self.br.read_byte()?)
+ }
+}
+
+#[derive(Debug, PartialEq)]
+enum Corrector {
+ Zero,
+ Skip,
+ Quad([i8; 4]),
+ Fill(u8),
+ ZeroBlock,
+ SkipBlock,
+}
+
+impl Corrector {
+ fn is_whole_block(&self) -> bool { matches!(*self, Corrector::Fill(_) | Corrector::ZeroBlock | Corrector::SkipBlock) }
+}
+
+struct QuadDecoder<'a, 'b, 'c> {
+ br: &'a mut DataReader<'b, 'c>,
+ cb: [&'static IviDeltaCB; 4],
+ cb_idx: [usize; 4],
+ mode: u8,
+
+ lines_run: u8,
+ block_run: u8,
+ skip_flag: bool,
+ next_lit: bool,
+ fill: Option<u8>,
+}
+
+impl<'a, 'b, 'c> QuadDecoder<'a, 'b, 'c> {
+ fn new(br: &'a mut DataReader<'b, 'c>, mode: u8, cb_index: [usize; 2]) -> Self {
+ Self {
+ br, mode,
+ lines_run: 0,
+ block_run: 0,
+ skip_flag: false,
+ next_lit: false,
+ fill: None,
+ cb: [IVI3_DELTA_CBS[cb_index[0]], IVI3_DELTA_CBS[cb_index[1]],
+ IVI3_DELTA_CBS[cb_index[0]], IVI3_DELTA_CBS[cb_index[1]]],
+ cb_idx: [cb_index[0], cb_index[1], cb_index[0], cb_index[1]],
+ }
+ }
+ fn get_skip_corr(&self) -> Corrector {
+ if !self.skip_flag {
+ Corrector::Zero
+ } else {
+ Corrector::Skip
+ }
+ }
+ fn read(&mut self, line: u8) -> DecoderResult<Corrector> {
+ if let Some(fill) = self.fill {
+ self.fill = None;
+ return Ok(Corrector::Fill(fill));
+ }
+ if self.lines_run > 0 {
+ self.lines_run -= 1;
+ return Ok(self.get_skip_corr());
+ }
+ if self.block_run > 0 {
+ self.block_run -= 1;
+ let corr = if !self.skip_flag {
+ Corrector::ZeroBlock
+ } else {
+ Corrector::SkipBlock
+ };
+ return Ok(corr);
+ }
+ let mut b = self.br.read_byte()?;
+ if self.next_lit {
+ self.next_lit = false;
+ if b >= 0xF8 {
+ b = (self.cb[usize::from(line)].data.len() / 2) as u8;
+ }
+ }
+
+ match b {
+ 0..=0xF7 => {
+ let cb = self.cb[usize::from(line)];
+
+ let esc_val = (cb.data.len() / 2) as u8;
+ let (idx0, idx1) = if b < esc_val {
+ let idx2 = self.br.read_byte()?;
+ validate!(idx2 < esc_val);
+ (b, idx2)
+ } else if self.cb_idx[usize::from(line)] < 16 {
+ ((b - esc_val) % cb.quad_radix, (b - esc_val) / cb.quad_radix)
+ } else {
+ ((b - esc_val) / cb.quad_radix, (b - esc_val) % cb.quad_radix)
+ };
+ let idx0 = usize::from(idx0);
+ let idx1 = usize::from(idx1);
+ Ok(Corrector::Quad([cb.data[idx1 * 2], cb.data[idx1 * 2 + 1],
+ cb.data[idx0 * 2], cb.data[idx0 * 2 + 1]]))
+ },
+ 0xF8 => {
+ validate!(line == 0);
+ let fillval = self.br.read_byte()?;
+ if (fillval & 0x80) != 0 {
+ self.fill = Some(fillval & 0x7F);
+ }
+ Ok(Corrector::Fill(fillval & 0x7F))
+ },
+ 0xF9 => {
+ validate!(line == 0);
+ self.skip_flag = true;
+ self.block_run = 1;
+ Ok(Corrector::SkipBlock)
+ },
+ 0xFA => {
+ validate!(self.mode != 3 && self.mode != 10);
+ Ok(Corrector::SkipBlock)
+ },
+ 0xFB => {
+ let b = self.br.read_byte()?;
+ validate!((b & 0x1F) > 0);
+ validate!(b < 0x40);
+ self.skip_flag = (b & 0x20) != 0;
+ self.block_run = (b & 0x1F) - 1;
+ if line > 0 {
+ self.lines_run = 3 - line;
+ Ok(self.get_skip_corr())
+ } else {
+ let corr = if !self.skip_flag {
+ Corrector::ZeroBlock
+ } else {
+ Corrector::SkipBlock
+ };
+ Ok(corr)
+ }
+ },
+ 0xFC => {
+ self.block_run = 1;
+ self.skip_flag = false;
+ if line > 0 {
+ self.lines_run = 3 - line;
+ Ok(Corrector::Zero)
+ } else {
+ Ok(Corrector::ZeroBlock)
+ }
+ },
+ 0xFD => {
+ self.lines_run = 3 - line;
+ self.skip_flag = false;
+ Ok(Corrector::Zero)
+ },
+ 0xFE => {
+ validate!(line < 2);
+ self.lines_run = 2 - line;
+ self.skip_flag = false;
+ Ok(Corrector::Zero)
+ },
+ 0xFF => {
+ validate!(line == 0);
+ self.lines_run = 1;
+ self.skip_flag = false;
+ self.next_lit = true;
+ Ok(Corrector::Zero)
+ },
+ }
+ }
+}
+
+#[derive(Clone, Copy)]
+struct Indeo3Cell {
+ x: u8,
+ y: u8,
+ width: u8,
+ height: u8,
+ mv: Option<MV>,
+ depth: u8,
+}
+
+impl Indeo3Cell {
+ fn new(width: usize, height: usize) -> Self {
+ Self {
+ x: 0,
+ y: 0,
+ width: (width / 4) as u8,
+ height: (height / 4) as u8,
+ mv: None,
+ depth: 0,
+ }
+ }
+
+ fn get_x(&self) -> usize { usize::from(self.x) * 4 }
+ fn get_y(&self) -> usize { usize::from(self.y) * 4 }
+ fn get_width(&self) -> usize { usize::from(self.width) * 4 }
+ fn get_height(&self) -> usize { usize::from(self.height) * 4 }
+ fn is_intra(&self) -> bool { self.mv.is_none() }
+
+ fn split_h(&self) -> (Self, Self) {
+ let h1 = if self.height > 2 { ((self.height + 2) >> 2) << 1 } else { 1 };
+ let h2 = self.height - h1;
+ let mut cell1 = *self;
+ cell1.height = h1;
+ cell1.depth += 1;
+ let mut cell2 = *self;
+ cell2.y += h1;
+ cell2.height = h2;
+ cell2.depth += 1;
+ (cell1, cell2)
+ }
+ fn split_v(&self, stripw: u8) -> (Self, Self) {
+ let w1 = if self.width > stripw {
+ if self.width > stripw * 2 { stripw * 2 } else { stripw }
+ } else {
+ if self.width > 2 { ((self.width + 2) >> 2) << 1 } else { 1 }
+ };
+ let w2 = self.width - w1;
+ let mut cell1 = *self;
+ cell1.width = w1;
+ cell1.depth += 1;
+ let mut cell2 = *self;
+ cell2.x += w1;
+ cell2.width = w2;
+ cell2.depth += 1;
+ (cell1, cell2)
+ }
+}
+
+impl std::fmt::Display for Indeo3Cell {
+ fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
+ let spec = if let Some(mv) = self.mv {
+ format!("mv {},{}", mv.x, mv.y)
+ } else {
+ "intra".to_owned()
+ };
+ write!(f, "[{}x{} @ {},{} {}]", self.get_width(), self.get_height(), self.get_x(), self.get_y(), spec)
+ }
+}
+
+#[derive(Default)]
+struct Plane {
+ width: usize,
+ height: usize,
+ data: Vec<u8>,
+ stripw: u8,
+}
+
+impl Plane {
+ fn new(stripw: u8) -> Self {
+ Self {
+ stripw: stripw / 4,
+ ..Default::default()
+ }
+ }
+ fn alloc(&mut self, width: usize, height: usize) {
+ self.width = width;
+ self.height = height;
+ self.data.resize(width * (height + 1), 0);
+ for el in self.data[..width].iter_mut() {
+ *el = DEFAULT_PIXEL;
+ }
+ }
+ fn reset(&mut self) {
+ for el in self.data[self.width..].iter_mut() {
+ *el = 0;
+ }
+ }
+ fn output_plane(&self, dst: &mut [u8], stride: usize, is_8bit: bool) {
+ for (dline, sline) in dst.chunks_mut(stride).zip(self.data.chunks(self.width).skip(1)) {
+ if !is_8bit {
+ for (dst, &src) in dline.iter_mut().zip(sline.iter()) {
+ *dst = src << 1;
+ }
+ } else {
+ let size = dline.len();
+ dline.copy_from_slice(&sline[..size]);
+ }
+ }
+ }
+ fn checksum(&self) -> u16 {
+ let mut checksum = [0; 2];
+ for pair in self.data.chunks(2) {
+ checksum[0] ^= pair[0];
+ checksum[1] ^= pair[1];
+ }
+ read_u16le(&checksum).unwrap_or(0)
+ }
+ fn decode_data(&mut self, br: &mut DataReader, ref_plane: &mut Self, header: &Header, requant_tab: &RequantTab) -> DecoderResult<()> {
+ let cell = Indeo3Cell::new(self.width, self.height);
+ self.decode_mv_tree(br, ref_plane, cell, header, requant_tab)?;
+ Ok(())
+ }
+ fn decode_mv_tree(&mut self, br: &mut DataReader, ref_plane: &mut Self, cell: Indeo3Cell, header: &Header, requant_tab: &RequantTab) -> DecoderResult<()> {
+ validate!(cell.depth < MAX_DEPTH);
+ match br.read_2bits()? {
+ H_SPLIT => {
+ let (cell1, cell2) = cell.split_h();
+ self.decode_mv_tree(br, ref_plane, cell1, header, requant_tab)?;
+ self.decode_mv_tree(br, ref_plane, cell2, header, requant_tab)?;
+ },
+ V_SPLIT => {
+ let (cell1, cell2) = cell.split_v(self.stripw);
+ self.decode_mv_tree(br, ref_plane, cell1, header, requant_tab)?;
+ self.decode_mv_tree(br, ref_plane, cell2, header, requant_tab)?;
+ },
+ ABS_FILL => {
+ self.decode_vq_tree(br, ref_plane, cell, header, requant_tab)?;
+ },
+ REL_FILL => {
+ validate!(!header.is_intra);
+ let mv_idx = usize::from(br.read_byte()?);
+ validate!(mv_idx < header.num_mvs);
+ let mut sec_cell = cell;
+ sec_cell.mv = Some(header.mvs[mv_idx]);
+ self.decode_vq_tree(br, ref_plane, sec_cell, header, requant_tab)?;
+ },
+ _ => unreachable!(),
+ }
+ Ok(())
+ }
+ fn decode_vq_tree(&mut self, br: &mut DataReader, ref_plane: &mut Self, cell: Indeo3Cell, header: &Header, requant_tab: &RequantTab) -> DecoderResult<()> {
+ validate!(cell.depth < MAX_DEPTH);
+ match br.read_2bits()? {
+ H_SPLIT => {
+ let (cell1, cell2) = cell.split_h();
+ self.decode_vq_tree(br, ref_plane, cell1, header, requant_tab)?;
+ self.decode_vq_tree(br, ref_plane, cell2, header, requant_tab)?;
+ },
+ V_SPLIT => {
+ let (cell1, cell2) = cell.split_v(self.stripw);
+ self.decode_vq_tree(br, ref_plane, cell1, header, requant_tab)?;
+ self.decode_vq_tree(br, ref_plane, cell2, header, requant_tab)?;
+ },
+ VQ_NULL => {
+ let code = br.read_2bits()?;
+ match code {
+ 0 => {
+ self.copy_cell(ref_plane, cell)?;
+ },
+ 1 => return Err(DecoderError::NotImplemented), // skip cell
+ _ => return Err(DecoderError::InvalidData),
+ };
+ },
+ VQ_DATA => {
+ let code = br.read_byte()?;
+ let mode = code >> 4;
+ let vq_index = code & 0xF;
+ let cb_index = if matches!(mode, 1 | 4 | 12) {
+ let aq = header.alt_quant[usize::from(vq_index)];
+ [aq & 0xF, aq >> 4]
+ } else {
+ [vq_index; 2]
+ };
+ let cb_index = [usize::from(cb_index[0] + header.vq_offset), usize::from(cb_index[1] + header.vq_offset)];
+ validate!(cb_index[0] < IVI3_DELTA_CBS.len());
+ validate!(cb_index[1] < IVI3_DELTA_CBS.len());
+ if cell.get_y() > 0 && matches!(mode, 0 | 3 | 10) && (8..=15).contains(&cb_index[0]) {
+ let src = if cell.is_intra() {
+ &mut self.data[cell.get_x() + cell.get_y() * self.width..]
+ } else {
+ &mut ref_plane.data[cell.get_x() + (cell.get_y() + 1) * ref_plane.width..]
+ };
+ let cur_requant_tab = &requant_tab[cb_index[0] - 8];
+ for el in src.iter_mut().take(cell.get_width()) {
+ *el = cur_requant_tab[usize::from(*el)];
+ }
+ }
+
+ let qmode = if mode != 10 || cell.is_intra() { mode } else { 20 };
+ let mut quad_decoder = QuadDecoder::new(br, qmode, cb_index);
+ if !cell.is_intra() {
+ self.copy_cell(ref_plane, cell)?;
+ }
+ match qmode {
+ 0 | 1 => {
+ self.process_cell_0_1(&mut quad_decoder, cell)?;
+ },
+ 3 | 4 => {
+ validate!(cell.is_intra());
+ validate!((cell.get_height() & 7) == 0);
+ self.process_cell_3_4(&mut quad_decoder, cell)?;
+ },
+ 10 => {
+ validate!((cell.get_width() & 7) == 0);
+ validate!((cell.get_height() & 7) == 0);
+ self.process_cell_10_intra(&mut quad_decoder, cell)?;
+ },
+ 20 => {
+ validate!((cell.get_width() & 7) == 0);
+ validate!((cell.get_height() & 7) == 0);
+ self.process_cell_10_inter(&mut quad_decoder, cell)?;
+ },
+ 11 => {
+ validate!(!cell.is_intra());
+ validate!((cell.get_height() & 7) == 0);
+ self.process_cell_11(&mut quad_decoder, cell)?;
+ },
+ 2 | 12 => { return Err(DecoderError::NotImplemented)},
+ _ => return Err(DecoderError::InvalidData),
+ };
+ if matches!(qmode, 3 | 4 | 10) && cell.get_y() == 0 {
+ let line_pair = &mut self.data[cell.get_x() + (cell.get_y() + 1) * self.width..];
+ let (line0, line1) = line_pair.split_at_mut(self.width);
+ line0[..cell.get_width()].copy_from_slice(&line1[..cell.get_width()]);
+ }
+ },
+ _ => unreachable!(),
+ }
+ Ok(())
+ }
+ fn process_cell_0_1(&mut self, qd: &mut QuadDecoder, cell: Indeo3Cell) -> DecoderResult<()> {
+ let stride = self.width;
+ let mut offset = cell.get_x() + (cell.get_y() + 1) * stride;
+ let cell_w = cell.get_width();
+ for _y in (0..cell.get_height()).step_by(4) {
+'block0:
+ for x in (0..cell_w).step_by(4) {
+ let top = &self.data[offset - stride + x..];
+ let mut top = [top[0], top[1], top[2], top[3]];
+ for line in 0..4 {
+ let corr = qd.read(line as u8)?;
+ if !cell.is_intra() && !corr.is_whole_block() {
+ let src = &self.data[offset + line * stride + x..];
+ top.copy_from_slice(&src[..4]);
+ }
+ match corr {
+ Corrector::SkipBlock => continue 'block0,
+ Corrector::Fill(fill) => {
+ for line in self.data[offset + x..].chunks_mut(stride).take(4) {
+ for el in line[..4].iter_mut() {
+ *el = fill;
+ }
+ }
+ },
+ Corrector::ZeroBlock if cell.is_intra() => {
+ let (head, cur) = self.data.split_at_mut(offset + x);
+ let prev = &head[head.len() - stride..];
+ for dline in cur.chunks_mut(stride).take(4) {
+ dline[..4].copy_from_slice(&prev[..4]);
+ }
+ continue 'block0;
+ },
+ Corrector::ZeroBlock => continue 'block0,
+ Corrector::Quad(quad) => {
+ for (el, &corr) in top.iter_mut().zip(quad.iter()) {
+ el.add_delta(corr)?;
+ }
+ },
+ Corrector::Zero => {},
+ Corrector::Skip if cell.is_intra() => unimplemented!(),
+ Corrector::Skip => {},
+ };
+ let wback = match corr {
+ Corrector::Zero if cell.is_intra() => true,
+ Corrector::Quad(_) => true,
+ _ => false,
+ };
+ if wback {
+ self.data[offset + x + line * stride..][..4].copy_from_slice(&top);
+ }
+ }
+ }
+ offset += self.width * 4;
+ }
+ Ok(())
+ }
+ fn process_cell_3_4(&mut self, qd: &mut QuadDecoder, cell: Indeo3Cell) -> DecoderResult<()> {
+ let stride = self.width;
+ let mut offset = cell.get_x() + (cell.get_y() + 1) * stride;
+ let cell_w = cell.get_width();
+ for _y in (0..cell.get_height()).step_by(8) {
+'block3:
+ for x in (0..cell_w).step_by(4) {
+ let top = &self.data[offset - stride + x..][..4];
+ let mut top = [top[0], top[1], top[2], top[3]];
+ for line in 0..4 {
+ let corr = qd.read(line as u8)?;
+ match corr {
+ Corrector::SkipBlock => continue 'block3,
+ Corrector::Fill(fill) => {
+ for line in self.data[offset + x..].chunks_mut(stride).take(8) {
+ for el in line[..4].iter_mut() {
+ *el = fill;
+ }
+ }
+ },
+ Corrector::ZeroBlock => {
+ for dline in self.data[offset + x..].chunks_mut(stride).take(8) {
+ dline[..4].copy_from_slice(&top);
+ }
+ continue 'block3;
+ },
+ Corrector::Quad(quad) => {
+ for (el, &corr) in top.iter_mut().zip(quad.iter()) {
+ el.add_delta(corr)?;
+ }
+ },
+ Corrector::Zero => {},
+ Corrector::Skip => unimplemented!(),
+ };
+
+ if corr != Corrector::Skip {
+ let dst = &mut self.data[offset + x + (line * 2 + 1) * stride..][..4];
+ dst.copy_from_slice(&top);
+ }
+ }
+
+ let mut top_off = offset + x - stride;
+ for _line in 0..4 {
+ for pos in 0..4 {
+ self.data[top_off + stride + pos] = (self.data[top_off + pos] + self.data[top_off + stride * 2 + pos]) >> 1;
+ }
+ top_off += stride * 2;
+ }
+ }
+ offset += self.width * 8;
+ }
+ Ok(())
+ }
+ fn process_cell_10_intra(&mut self, qd: &mut QuadDecoder, cell: Indeo3Cell) -> DecoderResult<()> {
+ let stride = self.width;
+ let mut offset = cell.get_x() + (cell.get_y() + 1) * stride;
+ let cell_w = cell.get_width();
+ for _y in (0..cell.get_height()).step_by(8) {
+'block10i:
+ for x in (0..cell_w).step_by(8) {
+ let top = &self.data[offset - stride + x..][..8];
+ let mut top = [top[0], top[2], top[4], top[6]];
+ for line in 0..4 {
+ let corr = qd.read(line as u8)?;
+ match corr {
+ Corrector::SkipBlock => continue 'block10i,
+ Corrector::Fill(fill) => {
+ for line in self.data[offset + x..].chunks_mut(stride).take(8) {
+ for el in line[..8].iter_mut() {
+ *el = fill;
+ }
+ }
+ },
+ Corrector::ZeroBlock => {
+ let line_pair = &mut self.data[offset - stride + x..];
+ let (top_line, dst_line) = line_pair.split_at_mut(stride);
+ for (i, (dst, &top_s)) in dst_line.iter_mut()
+ .zip(top_line.iter()).take(8).enumerate() {
+ *dst = (top_s + top[i >> 1]) >> 1;
+ }
+ for dline in self.data[offset + x..].chunks_mut(stride).take(8).skip(1) {
+ for (dst, &src) in dline.chunks_mut(2).zip(top.iter()) {
+ dst[0] = src;
+ dst[1] = src;
+ }
+ }
+ continue 'block10i;
+ },
+ Corrector::Quad(quad) => {
+ for (el, &corr) in top.iter_mut().zip(quad.iter()) {
+ el.add_delta(corr)?;
+ }
+ },
+ Corrector::Zero => {},
+ Corrector::Skip => unimplemented!(),
+ };
+
+ if corr != Corrector::Skip {
+ for (dst, &prev) in self.data[offset + x + (line * 2 + 1) * stride..].chunks_mut(2).zip(top.iter()).take(4) {
+ dst[0] = prev;
+ dst[1] = prev;
+ }
+ }
+ }
+
+ let mut top_off = offset + x - stride;
+ for _line in 0..4 {
+ for pos in 0..8 {
+ self.data[top_off + stride + pos] = (self.data[top_off + pos] + self.data[top_off + stride * 2 + pos]) >> 1;
+ }
+ top_off += stride * 2;
+ }
+ }
+ offset += self.width * 8;
+ }
+ Ok(())
+ }
+ fn process_cell_10_inter(&mut self, qd: &mut QuadDecoder, cell: Indeo3Cell) -> DecoderResult<()> {
+ let stride = self.width;
+ let mut offset = cell.get_x() + (cell.get_y() + 1) * stride;
+ let cell_w = cell.get_width();
+ for _y in (0..cell.get_height()).step_by(8) {
+'block10p:
+ for x in (0..cell_w).step_by(8) {
+ for line in 0..4 {
+ let corr = qd.read(line as u8)?;
+ match corr {
+ Corrector::SkipBlock | Corrector::ZeroBlock => continue 'block10p,
+ Corrector::Fill(fill) => {
+ for line in self.data[offset + x..].chunks_mut(stride).take(8) {
+ for el in line[..8].iter_mut() {
+ *el = fill;
+ }
+ }
+ },
+ Corrector::Quad(quad) => {
+ let strip = &mut self.data[offset + x + line * 2 * stride..];
+ for (xoff, &corr) in quad.iter().enumerate() {
+ strip[xoff * 2].add_delta(corr)?;
+ strip[xoff * 2 + 1].add_delta(corr)?;
+ strip[xoff * 2 + stride].add_delta(corr)?;
+ strip[xoff * 2 + stride + 1].add_delta(corr)?;
+ }
+ },
+ _ => {},
+ };
+ }
+ }
+ offset += self.width * 8;
+ }
+ Ok(())
+ }
+ fn process_cell_11(&mut self, qd: &mut QuadDecoder, cell: Indeo3Cell) -> DecoderResult<()> {
+ let stride = self.width;
+ let mut offset = cell.get_x() + (cell.get_y() + 1) * stride;
+ let cell_w = cell.get_width();
+ for _y in (0..cell.get_height()).step_by(8) {
+'block10p:
+ for x in (0..cell_w).step_by(4) {
+ for line in 0..4 {
+ let corr = qd.read(line as u8)?;
+ match corr {
+ Corrector::SkipBlock | Corrector::ZeroBlock => continue 'block10p,
+ Corrector::Fill(fill) => {
+ for line in self.data[offset + x..].chunks_mut(stride).take(8) {
+ for el in line[..4].iter_mut() {
+ *el = fill;
+ }
+ }
+ },
+ Corrector::Quad(quad) => {
+ let strip = &mut self.data[offset + x + line * 2 * stride..];
+ for (xoff, &corr) in quad.iter().enumerate() {
+ strip[xoff].add_delta(corr)?;
+ strip[xoff + stride].add_delta(corr)?;
+ }
+ },
+ _ => {},
+ };
+ }
+ }
+ offset += self.width * 8;
+ }
+ Ok(())
+ }
+ fn copy_cell(&mut self, ref_plane: &Self, cell: Indeo3Cell) -> DecoderResult<()> {
+ if let Some(mv) = cell.mv {
+ let xpos = (cell.get_x() as isize) + isize::from(mv.x);
+ validate!(xpos >= 0);
+ let xpos = xpos as usize;
+ validate!(xpos + cell.get_width() <= self.width);
+ let ypos = (cell.get_y() as isize) + isize::from(mv.y);
+ validate!(ypos >= 0);
+ let ypos = ypos as usize;
+ validate!(ypos + cell.get_height() <= self.height);
+ let src = &ref_plane.data[xpos + (ypos + 1) * ref_plane.width..];
+ let dst = &mut self.data[cell.get_x() + (cell.get_y() + 1) * self.width..];
+
+ let width = cell.get_width();
+ let height = cell.get_height();
+ for (dline, sline) in dst.chunks_mut(ref_plane.width).zip(src.chunks(self.width)).take(height) {
+ dline[..width].copy_from_slice(&sline[..width]);
+ }
+ Ok(())
+ } else {
+ Err(DecoderError::InvalidData)
+ }
+ }
+}
+
+struct IV3Frame {
+ plane: [Plane; 3],
+}
+
+impl IV3Frame {
+ fn new() -> Self {
+ Self {
+ plane: [
+ Plane::new(STRIP_WIDTH),
+ Plane::new(STRIP_WIDTH >> 2),
+ Plane::new(STRIP_WIDTH >> 2),
+ ],
+ }
+ }
+ fn alloc(&mut self, width: usize, height: usize) {
+ self.plane[0].alloc( width, height);
+ let chroma_w = ((width + 15) & !15) >> 2;
+ let chroma_h = ((height + 15) & !15) >> 2;
+ self.plane[1].alloc(chroma_w, chroma_h);
+ self.plane[2].alloc(chroma_w, chroma_h);
+ }
+ fn reset(&mut self) {
+ for plane in self.plane.iter_mut() {
+ plane.reset()
+ }
+ }
+ fn decode_planes(&mut self, ref_frame: &mut IV3Frame, br: &mut ByteReader, header: &mut Header, requant_tab: &RequantTab) -> DecoderResult<()> {
+ let data_start = header.data_start;
+ let data_end = header.data_end;
+ for ((cur_plane, ref_plane), (&start, &end)) in self.plane.iter_mut()
+ .zip(ref_frame.plane.iter_mut())
+ .zip(data_start.iter().zip(data_end.iter())) {
+ br.seek(SeekFrom::Start(start))?;
+ let num_mvs = br.read_u32le()? as usize;
+ if header.is_intra {
+ validate!(num_mvs == 0);
+ } else {
+ validate!(num_mvs <= header.mvs.len());
+ }
+ header.num_mvs = num_mvs;
+ for mv in header.mvs.iter_mut().take(num_mvs) {
+ mv.y = br.read_byte()? as i8;
+ mv.x = br.read_byte()? as i8;
+ }
+ let mut reader = DataReader::new(br);
+ cur_plane.decode_data(&mut reader, ref_plane, header, requant_tab)?;
+ validate!(br.tell() <= end);
+ }
+ Ok(())
+ }
+ fn output_frame(&self, dst: &mut NAVideoBuffer<u8>, is_8bit: bool) {
+ let dfrm = NASimpleVideoFrame::from_video_buf(dst).unwrap();
+ for (plane_no, plane) in self.plane.iter().enumerate() {
+ plane.output_plane(&mut dfrm.data[dfrm.offset[plane_no]..], dfrm.stride[plane_no], is_8bit);
+ }
+ }
+ fn checksum(&self, is_8bit: bool) -> u16 {
+ let mut checksum = 0;
+ for plane in self.plane.iter() {
+ checksum ^= plane.checksum();
+ }
+ if !is_8bit {
+ checksum <<= 1;
+ }
+ checksum
+ }
+}
+
+struct Indeo3Decoder {
+ info: NACodecInfoRef,
+ width: u16,
+ height: u16,
+ header: Header,
+ frame0: IV3Frame,
+ frame1: IV3Frame,
+ requant_tab: RequantTab,
+ do_crc: bool,
+ ign_size: bool,
+}
+
+impl Indeo3Decoder {
+ fn new() -> Self {
+ const REQUANT_OFF: [i32; 8] = [ 0, 1, 0, 4, 4, 1, 0, 1 ];
+
+ let dummy_info = NACodecInfo::new_dummy();
+
+ let mut requant_tab = [[0u8; 128]; 8];
+ for i in 0..8 {
+ let step = (i as i32) + 2;
+ let start = if (i == 3) || (i == 4) { -3 } else { step / 2 };
+ let mut last = 0;
+ for j in 0..128 {
+ requant_tab[i][j] = (((j as i32) + start) / step * step + REQUANT_OFF[i]) as u8;
+ if requant_tab[i][j] < 128 {
+ last = requant_tab[i][j];
+ } else {
+ requant_tab[i][j] = last;
+ }
+ }
+ }
+ requant_tab[1][7] = 10;
+ requant_tab[1][119] = 118;
+ requant_tab[1][120] = 118;
+ requant_tab[4][8] = 10;
+
+ Indeo3Decoder {
+ info: dummy_info,
+ width: 0,
+ height: 0,
+ header: Header::new(),
+ frame0: IV3Frame::new(),
+ frame1: IV3Frame::new(),
+ do_crc: false,
+ ign_size: false,
+ requant_tab
+ }
+ }
+}
+
+impl NADecoder for Indeo3Decoder {
+ fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
+ if let NACodecTypeInfo::Video(vinfo) = info.get_properties() {
+ let w = vinfo.get_width();
+ let h = vinfo.get_height();
+ let fmt = formats::YUV410_FORMAT;
+ let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, fmt));
+ self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref();
+ self.frame0.reset();
+ self.frame1.reset();
+ self.width = w as u16;
+ self.height = h as u16;
+ self.frame0.alloc(w, h);
+ self.frame1.alloc(w, h);
+ Ok(())
+ } else {
+ Err(DecoderError::InvalidData)
+ }
+ }
+ fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
+ let src = pkt.get_buffer();
+ let mut mr = MemoryReader::new_read(&src);
+ let mut br = ByteReader::new(&mut mr);
+
+ // read OS header
+ let frameno = br.read_u32le()?;
+ let hdr_2 = br.read_u32le()?;
+ let check = br.read_u32le()?;
+ let size = br.read_u32le()?;
+
+ let data_start = br.tell();
+
+ if (frameno ^ hdr_2 ^ size ^ FRMH_TAG) != check {
+ return Err(DecoderError::InvalidData);
+ }
+ if i64::from(size) > br.left() {
+ return Err(DecoderError::InvalidData);
+ }
+
+ let ver = br.read_u16le()?;
+ if ver != 32 { return Err(DecoderError::NotImplemented); }
+ let flags = br.read_u16le()?;
+ let size2 = br.read_u32le()?;
+ if size2 == 0x80 {
+ let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), NABufferType::None);
+ frm.set_keyframe(false);
+ frm.set_frame_type(FrameType::Skip);
+ return Ok(frm.into_ref());
+ }
+ validate!(((size2 + 7) >> 3) <= size);
+ self.header.vq_offset = br.read_byte()?;
+ br.read_skip(1)?;
+ let checksum = br.read_u16le()?;
+ let height = br.read_u16le()?;
+ let width = br.read_u16le()?;
+ validate!((width >= 16) && (width <= 640));
+ validate!((height >= 16) && (height <= 480));
+ validate!(((width & 3) == 0) && ((height & 3) == 0));
+ if !self.ign_size && (width != self.width || height != self.height) {
+ self.width = width;
+ self.height = height;
+ self.frame0.alloc(width as usize, height as usize);
+ self.frame1.alloc(width as usize, height as usize);
+ let newinfo = NAVideoInfo::new(width as usize, height as usize, false, formats::YUV410_FORMAT);
+ self.info = NACodecInfo::new_ref(self.info.get_name(), NACodecTypeInfo::Video(newinfo), self.info.get_extradata()).into_ref();
+ }
+
+ let yoff = br.read_u32le()?;
+ let voff = br.read_u32le()?;
+ let uoff = br.read_u32le()?;
+ validate!(yoff <= size && uoff <= size && voff <= size);
+
+ br.read_skip(4)?;
+ br.read_buf(&mut self.header.alt_quant)?;
+
+ let mut yend = src.len() as u32;//size;
+ if (uoff < yend) && (uoff > yoff) { yend = uoff; }
+ if (voff < yend) && (voff > yoff) { yend = voff; }
+ let mut uend = size;
+ if (yoff < uend) && (yoff > uoff) { uend = yoff; }
+ if (voff < uend) && (voff > uoff) { uend = voff; }
+ let mut vend = size;
+ if (yoff < vend) && (yoff > voff) { vend = yoff; }
+ if (uoff < vend) && (uoff > voff) { vend = uoff; }
+
+ let intra_frame = (flags & FLAG_KEYFRAME) != 0;
+
+ let bufinfo = alloc_video_buffer(self.info.get_properties().get_video_info().unwrap(), 4)?;
+ let mut buf = bufinfo.get_vbuf().unwrap();
+
+ let ystart = data_start + u64::from(yoff);
+ let ustart = data_start + u64::from(uoff);
+ let vstart = data_start + u64::from(voff);
+ let yendpos = data_start + u64::from(yend);
+ let uendpos = data_start + u64::from(uend);
+ let vendpos = data_start + u64::from(vend);
+
+ self.header.data_start = [ystart, ustart, vstart];
+ self.header.data_end = [yendpos, uendpos, vendpos];
+ self.header.is_intra = intra_frame;
+
+ let (cur_frame, ref_frame) = if (flags & FLAG_BUFSEL) != 0 {
+ (&mut self.frame0, &mut self.frame1)
+ } else {
+ (&mut self.frame1, &mut self.frame0)
+ };
+ cur_frame.decode_planes(ref_frame, &mut br, &mut self.header, &self.requant_tab)?;
+ cur_frame.output_frame(&mut buf, (flags & FLAG_8BIT) != 0);
+ if self.do_crc && checksum != 0 {
+ let out_checksum = cur_frame.checksum((flags & FLAG_8BIT) != 0);
+ if checksum != out_checksum && checksum.rotate_left(8) != out_checksum {
+ println!("checksum {:04X} / {:04X}", checksum, out_checksum);
+ return Err(DecoderError::ChecksumError);
+ }
+ }
+
+ let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo);
+ frm.set_keyframe(intra_frame);
+ frm.set_frame_type(if intra_frame { FrameType::I } else { FrameType::P });
+ Ok(frm.into_ref())
+ }
+
+ fn flush(&mut self) {
+ self.frame0.reset();
+ self.frame1.reset();
+ }
+}
+
+const DO_CRC_OPTION: &str = "checksum";
+const IGNORE_SIZE_OPTION: &str = "ignore_size_change";
+
+const DECODER_OPTS: &[NAOptionDefinition] = &[
+ NAOptionDefinition {
+ name: DO_CRC_OPTION, description: "Verify frame checksum",
+ opt_type: NAOptionDefinitionType::Bool },
+ NAOptionDefinition {
+ name: IGNORE_SIZE_OPTION, description: "Ignore dimensions provided in the frame header",
+ opt_type: NAOptionDefinitionType::Bool },
+];
+
+impl NAOptionHandler for Indeo3Decoder {
+ fn get_supported_options(&self) -> &[NAOptionDefinition] { DECODER_OPTS }
+ fn set_options(&mut self, options: &[NAOption]) {
+ for option in options.iter() {
+ for opt_def in DECODER_OPTS.iter() {
+ if opt_def.check(option).is_ok() {
+ match option.name {
+ DO_CRC_OPTION => {
+ if let NAValue::Bool(val) = option.value {
+ self.do_crc = val;
+ }
+ },
+ IGNORE_SIZE_OPTION => {
+ if let NAValue::Bool(val) = option.value {
+ self.ign_size = val;
+ }
+ },
+ _ => {},
+ };
+ }
+ }
+ }
+ }
+ fn query_option_value(&self, name: &str) -> Option<NAValue> {
+ match name {
+ DO_CRC_OPTION => Some(NAValue::Bool(self.do_crc)),
+ IGNORE_SIZE_OPTION => Some(NAValue::Bool(self.ign_size)),
+ _ => None,
+ }
+ }
+}
+
+pub fn get_decoder() -> Box<dyn NADecoder + Send> {
+ Box::new(Indeo3Decoder::new())
+}
+
+#[cfg(test)]
+mod test {
+ use nihav_core::codecs::RegisteredDecoders;
+ use nihav_core::demuxers::RegisteredDemuxers;
+ use nihav_codec_support::test::dec_video::*;
+ use crate::indeo_register_all_decoders;
+ use nihav_commonfmt::generic_register_all_demuxers;
+ #[test]
+ fn test_indeo3_decoder() {
+ let mut dmx_reg = RegisteredDemuxers::new();
+ generic_register_all_demuxers(&mut dmx_reg);
+ let mut dec_reg = RegisteredDecoders::new();
+ indeo_register_all_decoders(&mut dec_reg);
+
+ // sample: https://samples.mplayerhq.hu/V-codecs/IV32/iv32_example.avi
+ test_decoding("avi", "indeo3", "assets/Indeo/iv32_example.avi", Some(10),
+ &dmx_reg, &dec_reg, ExpectedTestResult::MD5Frames(vec![
+ [0xd710b489, 0xbeee8f99, 0xfbe34549, 0xaf5805af],
+ [0x2b56ad73, 0x1faea777, 0xed480d09, 0x801e5185],
+ [0x06baa992, 0x74eef5fa, 0xf9d39fb2, 0xfac872ae],
+ [0xadceb016, 0x1fbd67f9, 0xba3e6621, 0xd822a026],
+ [0x052244b7, 0x1e3bd7bb, 0xd5ad10cf, 0x9177dc3e],
+ [0x84cca4bc, 0x19ac192f, 0xb9281be7, 0x7ad6193e],
+ [0xcab74cf9, 0xd7c77c2a, 0x848cbfc9, 0x604a2718],
+ [0xe6d65b3b, 0x3f3ea0e1, 0x383cad01, 0x0788f3ac],
+ [0xb25d9b0c, 0xc784bf67, 0x6e86991d, 0x7c2d9a14],
+ [0x8c70aeae, 0xf95369a1, 0x31d60201, 0xe7e4acdb],
+ [0x5c63f1bb, 0x32ce48a4, 0x226d112e, 0x440a5bba]]));
+ }
+}
projects / nihav.git / blobdiff