1 use nihav_core::frame::{NAVideoBuffer, NASimpleVideoFrame};
2 use nihav_codec_support::codecs::{MV, ZERO_MV};
3 use nihav_codec_support::data::GenericCache;
4 use super::SimplifiedSliceRefs;
5 use super::pic_ref::FrameMBInfo;
8 pub struct SimpleFrame<'a> {
10 pub offset: [usize; 3],
11 pub stride: [usize; 3],
14 impl<'a> SimpleFrame<'a> {
15 pub fn new(buf: &'a NAVideoBuffer<u8>) -> Self {
16 let mut offset = [0; 3];
17 let mut stride = [0; 3];
18 for (plane, (offs, strd)) in offset.iter_mut().zip(stride.iter_mut()).enumerate() {
19 *offs = buf.get_offset(plane);
20 *strd = buf.get_stride(plane);
30 #[derive(Clone,Copy,Debug,PartialEq)]
37 #[derive(Clone,Copy,Debug,PartialEq,Default)]
42 Intra16x16(u8, u8, u8),
61 pub fn is_intra(self) -> bool {
62 matches!(self, MBType::Intra4x4 | MBType::Intra8x8 | MBType::Intra16x16(_, _, _) | MBType::PCM)
64 pub fn is_intra16x16(self) -> bool {
65 matches!(self, MBType::Intra16x16(_, _, _))
67 pub fn is_skip(self) -> bool {
68 matches!(self, MBType::PSkip | MBType::BSkip)
70 pub fn is_4x4(self) -> bool { self.num_parts() == 4 }
71 pub fn is_l0(self, part: usize) -> bool {
73 MBType::B16x16(mode) => mode == BMode::L0,
74 MBType::B16x8(mode0, mode1) | MBType::B8x16(mode0, mode1) => {
81 MBType::Direct | MBType::BSkip => false,
85 pub fn is_l1(self, part: usize) -> bool {
87 MBType::B16x16(mode) => mode == BMode::L1,
88 MBType::B16x8(mode0, mode1) | MBType::B8x16(mode0, mode1) => {
98 pub fn num_parts(self) -> usize {
100 MBType::Intra4x4 | MBType::Intra8x8 | MBType::Intra16x16(_, _, _) | MBType::PCM |
102 MBType::Direct | MBType::BSkip
107 MBType::P16x8 | MBType::P8x16 |
108 MBType::B16x8(_, _) | MBType::B8x16(_, _)
113 pub fn size(self) -> (usize, usize) {
117 MBType::Intra16x16(_, _, _) |
125 MBType::P16x8 | MBType::B16x8(_, _) => (16, 8),
126 MBType::P8x16 | MBType::B8x16(_, _) => (8, 16),
132 #[derive(Clone,Copy,Debug,PartialEq,Default)]
147 pub fn num_parts(self) -> usize {
149 SubMBType::P8x8 | SubMBType::Direct8x8 | SubMBType::B8x8(_) => 1,
150 SubMBType::P4x4 | SubMBType::B4x4(_) => 4,
154 pub fn size(self) -> (usize, usize) {
156 SubMBType::P8x8 | SubMBType::Direct8x8 | SubMBType::B8x8(_) => (8, 8),
157 SubMBType::P8x4 | SubMBType::B8x4(_) => (8, 4),
158 SubMBType::P4x8 | SubMBType::B4x8(_) => (4, 8),
159 SubMBType::P4x4 | SubMBType::B4x4(_) => (4, 4),
162 pub fn is_l0(self) -> bool {
164 SubMBType::B8x8(mode) | SubMBType::B8x4(mode) |
165 SubMBType::B4x8(mode) | SubMBType::B4x4(mode) => {
171 pub fn is_l1(self) -> bool {
173 SubMBType::B8x8(mode) | SubMBType::B8x4(mode) |
174 SubMBType::B4x8(mode) | SubMBType::B4x4(mode) => {
183 #[derive(Clone,Copy,Debug,PartialEq,Default)]
184 pub enum CompactMBType {
209 pub fn is_intra(self) -> bool {
210 matches!(self, CompactMBType::Intra4x4 | CompactMBType::Intra8x8 | CompactMBType::Intra16x16)
212 pub fn is_intra16orpcm(self) -> bool {
213 matches!(self, CompactMBType::Intra16x16 | CompactMBType::PCM)
215 pub fn is_skip(self) -> bool {
216 matches!(self, CompactMBType::PSkip | CompactMBType::BSkip)
218 pub fn is_direct(self) -> bool {
219 matches!(self, CompactMBType::BSkip | CompactMBType::Direct | CompactMBType::None)
221 pub fn is_inter(self) -> bool {
222 !self.is_intra() && !self.is_skip() && self != CompactMBType::PCM
224 pub fn is_16x16_ref(self) -> bool {
226 CompactMBType::Intra4x4 |
227 CompactMBType::Intra8x8 |
228 CompactMBType::Intra16x16 |
230 CompactMBType::P16x16 |
231 CompactMBType::B16x16)
235 impl From<MBType> for CompactMBType {
236 fn from(mbtype: MBType) -> Self {
238 MBType::Intra4x4 => CompactMBType::Intra4x4,
239 MBType::Intra8x8 => CompactMBType::Intra8x8,
240 MBType::Intra16x16(_, _, _) => CompactMBType::Intra16x16,
241 MBType::PCM => CompactMBType::PCM,
242 MBType::P16x16 => CompactMBType::P16x16,
243 MBType::P16x8 => CompactMBType::P16x8,
244 MBType::P8x16 => CompactMBType::P8x16,
245 MBType::P8x8 => CompactMBType::P8x8,
246 MBType::P8x8Ref0 => CompactMBType::P8x8Ref0,
247 MBType::PSkip => CompactMBType::PSkip,
248 MBType::Direct => CompactMBType::Direct,
249 MBType::B16x16(_) => CompactMBType::B16x16,
250 MBType::B16x8(_, _) => CompactMBType::B16x8,
251 MBType::B8x16(_, _) => CompactMBType::B8x16,
252 MBType::B8x8 => CompactMBType::B8x8,
253 MBType::BSkip => CompactMBType::BSkip,
259 #[derive(Clone,Copy,Debug,PartialEq,Default)]
260 pub enum IntraPredMode {
275 pub fn is_none(self) -> bool { self == IntraPredMode::None }
276 pub fn into_pred_idx(self) -> i8 {
285 impl From<u8> for IntraPredMode {
286 fn from(val: u8) -> Self {
288 0 => IntraPredMode::Vertical,
289 1 => IntraPredMode::Horizontal,
290 2 => IntraPredMode::DC,
291 3 => IntraPredMode::DiagDownLeft,
292 4 => IntraPredMode::DiagDownRight,
293 5 => IntraPredMode::VerRight,
294 6 => IntraPredMode::HorDown,
295 7 => IntraPredMode::VerLeft,
296 8 => IntraPredMode::HorUp,
297 _ => IntraPredMode::None,
302 impl From<IntraPredMode> for u8 {
303 fn from(val: IntraPredMode) -> Self {
305 IntraPredMode::Vertical => 0,
306 IntraPredMode::Horizontal => 1,
307 IntraPredMode::DC => 2,
308 IntraPredMode::DiagDownLeft => 3,
309 IntraPredMode::DiagDownRight => 4,
310 IntraPredMode::VerRight => 5,
311 IntraPredMode::HorDown => 6,
312 IntraPredMode::VerLeft => 7,
313 IntraPredMode::HorUp => 8,
319 pub const MISSING_POC: u16 = 0xFFFF;
321 #[derive(Clone,Copy,Debug)]
326 pub const MISSING_REF: PicRef = PicRef { ref_idx: 0xFF };
327 pub const INVALID_REF: PicRef = PicRef { ref_idx: 0xFE };
328 pub const ZERO_REF: PicRef = PicRef { ref_idx: 0 };
329 const DIRECT_FLAG: u8 = 0x40;
332 pub fn new(ref_idx: u8) -> Self {
335 pub fn not_avail(self) -> bool {
336 self == MISSING_REF || self == INVALID_REF
338 pub fn index(self) -> usize { (self.ref_idx & !DIRECT_FLAG) as usize }
339 pub fn is_direct(self) -> bool { (self.ref_idx & DIRECT_FLAG) != 0 }
340 pub fn set_direct(&mut self) { self.ref_idx |= DIRECT_FLAG; }
341 fn min_pos(self, other: Self) -> Self {
342 match (self.not_avail(), other.not_avail()) {
343 (true, true) => self,
344 (false, true) => self,
345 (true, false) => other,
346 (false, false) => PicRef::new((self.ref_idx & !DIRECT_FLAG).min(other.ref_idx & !DIRECT_FLAG)),
351 impl Default for PicRef {
352 fn default() -> Self { MISSING_REF }
355 impl PartialEq for PicRef {
356 fn eq(&self, other: &Self) -> bool {
357 (self.ref_idx | DIRECT_FLAG) == (other.ref_idx | DIRECT_FLAG)
361 impl std::fmt::Display for PicRef {
362 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
363 if *self == MISSING_REF {
365 } else if *self == INVALID_REF {
368 write!(f, "{}", self.ref_idx & !DIRECT_FLAG)
373 #[derive(Clone,Copy,Default)]
375 pub mb_type: CompactMBType,
377 pub coded_flags: u32,
382 pub transform_8x8: bool,
385 pub fn blk4_to_blk8(blk4: usize) -> usize {
386 /*const MAP: [usize; 16] = [ 0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3 ];
388 ((blk4 & 2) >> 1) | ((blk4 & 8) >> 2)
391 #[derive(Clone,Copy)]
392 pub struct Blk8Data {
393 pub ref_idx: [PicRef; 2],
394 pub ncoded_c: [u8; 2],
397 impl Default for Blk8Data {
398 fn default() -> Self {
400 ref_idx: [MISSING_REF; 2],
406 #[derive(Clone,Copy,Default)]
407 pub struct Blk4Data {
409 pub ipred: IntraPredMode,
414 pub struct SliceState {
421 pub mb: GenericCache<MBData>,
422 pub blk8: GenericCache<Blk8Data>,
423 pub blk4: GenericCache<Blk4Data>,
425 pub deblock: [u8; 16],
430 pub top_line_y: Vec<u8>,
431 pub left_y: [u8; 17], // first element is top-left
432 pub top_line_c: [Vec<u8>; 2],
433 pub left_c: [[u8; 9]; 2],
436 const BLK4_TO_D8: [usize; 16] = [ 0, 0, 3, 3, 0, 0, 3, 3, 12, 12, 15, 15, 12, 12, 15, 15 ];
439 pub fn new() -> Self {
446 mb: GenericCache::new(0, 0, MBData::default()),
447 blk8: GenericCache::new(0, 0, Blk8Data::default()),
448 blk4: GenericCache::new(0, 0, Blk4Data::default()),
455 top_line_y: Vec::new(),
457 top_line_c: [Vec::new(), Vec::new()],
461 pub fn reset(&mut self, mb_w: usize, mb_h: usize, mb_pos: usize) {
464 self.mb_start = mb_pos;
466 self.mb_x = mb_pos % mb_w;
467 self.mb_y = mb_pos / mb_w;
472 self.mb = GenericCache::new(1, mb_w + 2, MBData::default());
473 self.blk8 = GenericCache::new(2, mb_w * 2 + 2, Blk8Data::default());
474 self.blk4 = GenericCache::new(4, mb_w * 4 + 2, Blk4Data::default());
476 self.has_top = false;
477 self.has_left = false;
479 self.top_line_y.resize(mb_w * 16 + 1, 0x80);
480 self.top_line_c[0].resize(mb_w * 8 + 1, 0x80);
481 self.top_line_c[1].resize(mb_w * 8 + 1, 0x80);
482 self.left_y = [0x80; 17];
483 self.left_c = [[0x80; 9]; 2];
485 pub fn save_ipred_context(&mut self, frm: &NASimpleVideoFrame<u8>) {
486 let dstoff = self.mb_x * 16;
487 let srcoff = frm.offset[0] + self.mb_x * 16 + self.mb_y * 16 * frm.stride[0];
488 self.left_y[0] = self.top_line_y[dstoff + 15];
489 self.top_line_y[dstoff..][..16].copy_from_slice(&frm.data[srcoff + frm.stride[0] * 15..][..16]);
490 for (dst, src) in self.left_y[1..].iter_mut().zip(frm.data[srcoff..].chunks(frm.stride[0])) {
494 let cstride = frm.stride[chroma + 1];
495 let dstoff = self.mb_x * 8;
496 let srcoff = frm.offset[chroma + 1] + self.mb_x * 8 + self.mb_y * 8 * cstride;
497 self.left_c[chroma][0] = self.top_line_c[chroma][dstoff + 7];
498 self.top_line_c[chroma][dstoff..][..8].copy_from_slice(&frm.data[srcoff + cstride * 7..][..8]);
499 for (dst, src) in self.left_c[chroma][1..].iter_mut().zip(frm.data[srcoff..].chunks(cstride)) {
504 pub fn fill_deblock(&mut self, frefs: &SimplifiedSliceRefs, deblock_mode: u8, is_s: bool) {
505 if deblock_mode == 1 {
509 self.deblock = [0; 16];
511 let tx8x8 = self.get_cur_mb().transform_8x8;
513 let cur_intra = self.get_cur_mb().mb_type.is_intra();
514 let left_intra = self.get_left_mb().mb_type.is_intra();
515 let mut top_intra = self.get_top_mb().mb_type.is_intra();
517 let mut coded_cache = [false; 25];
518 let mut mv_cache = [[ZERO_MV; 2]; 25];
519 let mut ref_cache = [[INVALID_REF; 2]; 25];
521 if self.mb_y != 0 || self.has_top {
522 for (x, (cc, mv)) in coded_cache[1..5].iter_mut().zip(mv_cache[1..5].iter_mut()).enumerate() {
523 let blk4 = self.get_top_blk4(x);
524 *cc = blk4.ncoded != 0;
527 let blk8 = self.get_top_blk8(x / 2);
528 ref_cache[x + 1] = blk8.ref_idx;
530 ref_cache[x + 1] = ref_cache[x];
534 for (y, (ccs, mvs)) in coded_cache[5..].chunks_exact_mut(5).zip(
535 mv_cache[5..].chunks_exact_mut(5)).enumerate() {
536 if self.has_left || self.mb_x != 0 {
537 let blk4 = self.get_left_blk4(y * 4);
538 ccs[0] = blk4.ncoded != 0;
541 let blk8 = self.get_left_blk8(y);
542 ref_cache[y * 5 + 5] = blk8.ref_idx;
544 ref_cache[y * 5 + 5] = ref_cache[y * 5];
547 for (x, (cc, mv)) in ccs[1..].iter_mut().zip(mvs[1..].iter_mut()).enumerate() {
548 let blk4 = self.get_cur_blk4(x + y * 4);
549 *cc = blk4.ncoded != 0;
551 ref_cache[x + 1 + (y + 1) * 5] = if ((x & 1) == 0) && ((y & 1) == 0) {
552 self.get_cur_blk8(x / 2 + y).ref_idx
554 ref_cache[(x & !1) + 1 + ((y & !1) + 1) * 5]
559 for (y, (((top_ccs, cur_ccs), (top_mvs, cur_mvs)), (cur_refs, top_refs))) in
560 coded_cache.chunks_exact(5).take(4).zip(coded_cache[5..].chunks_exact(5)).zip(
561 mv_cache.chunks_exact(5).zip(mv_cache[5..].chunks_exact(5))).zip(
562 ref_cache[5..].chunks_exact(5).zip(ref_cache.chunks_exact(5))).enumerate() {
563 let can_do_top = y != 0 || (self.mb_y != 0 && (self.has_top || deblock_mode != 2));
564 if can_do_top && (!tx8x8 || (y & 1) == 0) {
565 if is_s || cur_intra || top_intra {
566 let val = if y == 0 { 0x40 } else { 0x30 };
567 for el in self.deblock[y * 4..][..4].iter_mut() { *el |= val; }
569 for (x, (((&cur_cc, &top_cc), (cur_mv, top_mv)), (&cur_ref, &top_ref))) in
570 cur_ccs[1..].iter().zip(top_ccs[1..].iter()).zip(
571 cur_mvs[1..].iter().zip(top_mvs[1..].iter())).zip(
572 cur_refs[1..].iter().zip(
573 top_refs[1..].iter())).take(4).enumerate() {
574 if cur_cc || top_cc {
575 self.deblock[y * 4 + x] |= 0x20;
577 if mvdiff4(cur_mv, top_mv) || !frefs.cmp_refs(cur_ref, top_ref) {
578 self.deblock[y * 4 + x] |= 0x10;
584 let mut lleft_intra = left_intra;
585 for (x, (((&cur_cc, &left_cc), (cur_mv, left_mv)), (&cur_ref, &left_ref))) in
586 cur_ccs[1..].iter().zip(cur_ccs.iter()).zip(
587 cur_mvs[1..].iter().zip(cur_mvs.iter())).zip(
588 cur_refs[1..].iter().zip(cur_refs.iter())).enumerate() {
589 let skip_8 = tx8x8 && (x & 1) != 0;
590 let can_do_left = x > 0 || self.has_left || (self.mb_x != 0 && deblock_mode != 2);
595 } else if is_s || cur_intra || lleft_intra {
596 self.deblock[y * 4 + x] |= if x == 0 { 4 } else { 3 };
597 } else if cur_cc || left_cc {
598 self.deblock[y * 4 + x] |= 2;
600 if mvdiff4(cur_mv, left_mv) || !frefs.cmp_refs(cur_ref, left_ref) {
601 self.deblock[y * 4 + x] |= 1;
604 lleft_intra = cur_intra;
606 top_intra = cur_intra;
609 pub fn next_mb(&mut self) {
611 self.has_left = true;
612 if self.mb_x == self.mb_w {
615 self.mb.update_row();
616 self.blk8.update_row();
617 self.blk4.update_row();
619 self.has_left = false;
621 self.has_top = self.mb_x + self.mb_y * self.mb_w >= self.mb_start + self.mb_w;
623 pub fn get_cur_mb_idx(&self) -> usize { self.mb.xpos + self.mb_x }
624 pub fn get_cur_blk8_idx(&self, blk_no: usize) -> usize {
625 self.blk8.xpos + self.mb_x * 2 + (blk_no & 1) + (blk_no >> 1) * self.blk8.stride
627 pub fn get_cur_blk4_idx(&self, blk_no: usize) -> usize {
628 self.blk4.xpos + self.mb_x * 4 + (blk_no & 3) + (blk_no >> 2) * self.blk4.stride
630 pub fn get_cur_mb(&mut self) -> &mut MBData {
631 let idx = self.get_cur_mb_idx();
632 &mut self.mb.data[idx]
634 pub fn get_left_mb(&self) -> &MBData {
635 &self.mb.data[self.get_cur_mb_idx() - 1]
637 pub fn get_top_mb(&self) -> &MBData {
638 &self.mb.data[self.get_cur_mb_idx() - self.mb.stride]
640 pub fn get_cur_blk8(&mut self, blk_no: usize) -> &mut Blk8Data {
641 let idx = self.get_cur_blk8_idx(blk_no);
642 &mut self.blk8.data[idx]
644 pub fn get_left_blk8(&self, blk_no: usize) -> &Blk8Data {
645 &self.blk8.data[self.get_cur_blk8_idx(blk_no) - 1]
647 pub fn get_top_blk8(&self, blk_no: usize) -> &Blk8Data {
648 &self.blk8.data[self.get_cur_blk8_idx(blk_no) - self.blk8.stride]
650 pub fn get_cur_blk4(&mut self, blk_no: usize) -> &mut Blk4Data {
651 let idx = self.get_cur_blk4_idx(blk_no);
652 &mut self.blk4.data[idx]
654 pub fn get_left_blk4(&self, blk_no: usize) -> &Blk4Data {
655 &self.blk4.data[self.get_cur_blk4_idx(blk_no) - 1]
657 pub fn get_top_blk4(&self, blk_no: usize) -> &Blk4Data {
658 &self.blk4.data[self.get_cur_blk4_idx(blk_no) - self.blk4.stride]
661 pub fn apply_to_blk8<F: (Fn(&mut Blk8Data))>(&mut self, f: F) {
662 let start = self.get_cur_blk8_idx(0);
663 for row in self.blk8.data[start..].chunks_mut(self.blk8.stride).take(2) {
664 for el in row[..2].iter_mut() {
669 pub fn apply_to_blk4<F: (Fn(&mut Blk4Data))>(&mut self, f: F) {
670 let start = self.get_cur_blk4_idx(0);
671 for row in self.blk4.data[start..].chunks_mut(self.blk4.stride).take(4) {
672 for el in row[..4].iter_mut() {
678 pub fn fill_ipred(&mut self, imode: IntraPredMode) {
679 self.apply_to_blk4(|blk| blk.ipred = imode);
681 pub fn fill_ncoded(&mut self, nc: u8) {
682 self.apply_to_blk4(|blk| blk.ncoded = nc);
683 self.apply_to_blk8(|blk| blk.ncoded_c = [nc; 2]);
685 pub fn reset_mb_mv(&mut self) {
686 self.apply_to_blk8(|blk| blk.ref_idx = [INVALID_REF; 2]);
689 pub fn get_mv_ctx(&self, xoff: usize, yoff: usize, ref_l: usize) -> (usize, usize) {
690 let blk_no = xoff / 4 + yoff;
691 let mv_a = self.get_left_blk4(blk_no).mvd[ref_l];
692 let mv_b = self.get_top_blk4(blk_no).mvd[ref_l];
693 let mv = mv_a + mv_b;
694 let ctx0 = if mv.x < 3 { 0 } else if mv.x <= 32 { 1 } else { 2 };
695 let ctx1 = if mv.y < 3 { 0 } else if mv.y <= 32 { 1 } else { 2 };
698 pub fn get_mv_ref_ctx(&self, xoff: usize, yoff: usize, ref_l: usize) -> usize {
699 let blk_no = xoff / 8 + (yoff / 8) * 2;
701 let left_ref = self.get_left_blk8(blk_no).ref_idx[ref_l];
702 let top_ref = self.get_top_blk8(blk_no).ref_idx[ref_l];
703 if !left_ref.not_avail() && !left_ref.is_direct() && left_ref.index() > 0 {
706 if !top_ref.not_avail() && !top_ref.is_direct() && top_ref.index() > 0 {
711 #[allow(clippy::if_same_then_else)]
712 pub fn predict(&mut self, xpos: usize, ypos: usize, bw: usize, bh: usize, ref_l: usize, diff_mv: MV, ref_idx: PicRef) {
713 let midx = self.get_cur_blk4_idx(0) + xpos / 4 + ypos / 4 * self.blk4.stride;
714 let ridx = self.get_cur_blk8_idx(0) + xpos / 8 + ypos / 8 * self.blk8.stride;
715 let ridx_c = self.get_cur_blk8_idx(0) + (xpos + bw) / 8 + ypos / 8 * self.blk8.stride - if (ypos & 4) == 0 { self.blk8.stride } else { 0 };
717 let mv_a = self.blk4.data[midx - 1].mv[ref_l];
718 let mv_b = self.blk4.data[midx - self.blk4.stride].mv[ref_l];
719 let mut mv_c = self.blk4.data[midx - self.blk4.stride + bw / 4].mv[ref_l];
721 let rx = if (xpos & 4) != 0 { 0 } else { 1 };
722 let ry = if (ypos & 4) != 0 { 0 } else { self.blk8.stride };
723 let ref_a = self.blk8.data[ridx - rx].ref_idx[ref_l];
724 let ref_b = self.blk8.data[ridx - ry].ref_idx[ref_l];
725 let mut ref_c = self.blk8.data[ridx_c].ref_idx[ref_l];
727 if ref_c == MISSING_REF || (((xpos + bw) & 4) == 0 && (ypos & 4) != 0) {
728 mv_c = self.blk4.data[midx - self.blk4.stride - 1].mv[ref_l];
729 ref_c = self.blk8.data[ridx - rx - ry].ref_idx[ref_l];
732 let pred_mv = if bw == 16 && bh == 8 && ypos == 0 && ref_b == ref_idx {
734 } else if bw == 16 && bh == 8 && ypos != 0 && ref_a == ref_idx {
736 } else if bw == 8 && bh == 16 && xpos == 0 && ref_a == ref_idx {
738 } else if bw == 8 && bh == 16 && xpos != 0 && ref_c == ref_idx {
740 } else if ref_b == MISSING_REF && ref_c == MISSING_REF {
743 let count = ((ref_a == ref_idx) as u8) + ((ref_b == ref_idx) as u8) + ((ref_c == ref_idx) as u8);
745 if ref_a == ref_idx {
747 } else if ref_b == ref_idx {
753 MV::pred(mv_a, mv_b, mv_c)
757 let mv = pred_mv + diff_mv;
758 self.fill_mv (xpos, ypos, bw, bh, ref_l, mv);
759 self.fill_ref(xpos, ypos, bw, bh, ref_l, ref_idx);
761 pub fn predict_pskip(&mut self) {
762 let midx = self.get_cur_blk4_idx(0);
763 let ridx = self.get_cur_blk8_idx(0);
765 let mv_a = self.blk4.data[midx - 1].mv[0];
766 let mv_b = self.blk4.data[midx - self.blk4.stride].mv[0];
767 let mut mv_c = self.blk4.data[midx - self.blk4.stride + 4].mv[0];
769 let ref_a = self.blk8.data[ridx - 1].ref_idx[0];
770 let ref_b = self.blk8.data[ridx - self.blk8.stride].ref_idx[0];
771 let mut ref_c = self.blk8.data[ridx - self.blk8.stride + 2].ref_idx[0];
773 if ref_c == MISSING_REF {
774 mv_c = self.blk4.data[midx - self.blk4.stride - 1].mv[0];
775 ref_c = self.blk8.data[ridx - self.blk8.stride - 1].ref_idx[0];
778 let ref_idx = ZERO_REF;
779 let mv = if ref_a == MISSING_REF || ref_b == MISSING_REF || (ref_a == ZERO_REF && mv_a == ZERO_MV) || (ref_b == ZERO_REF && mv_b == ZERO_MV) {
782 let count = ((ref_a == ref_idx) as u8) + ((ref_b == ref_idx) as u8) + ((ref_c == ref_idx) as u8);
784 if ref_a == ref_idx {
786 } else if ref_b == ref_idx {
792 MV::pred(mv_a, mv_b, mv_c)
796 self.fill_mv (0, 0, 16, 16, 0, mv);
797 self.fill_ref(0, 0, 16, 16, 0, ref_idx);
799 pub fn predict_direct_mb(&mut self, frame_refs: &SimplifiedSliceRefs, temporal_mv: bool, direct_8x8: bool, cur_id: u16) {
800 let (col_mb, r1_poc, r1_long) = frame_refs.get_colocated_info(self.mb_x, self.mb_y);
803 let (mv0, ref0, mv1, ref1) = self.get_direct_mv(frame_refs, &col_mb, r1_poc, r1_long, temporal_mv, cur_id, BLK4_TO_D8[blk4]);
804 self.get_cur_blk4(blk4).mv = [mv0, mv1];
805 self.get_cur_blk8(blk4_to_blk8(blk4)).ref_idx = [ref0, ref1];
807 } else if col_mb.mb_type.is_16x16_ref() || !temporal_mv {
808 let (mv0, ref0, mv1, ref1) = self.get_direct_mv(frame_refs, &col_mb, r1_poc, r1_long, temporal_mv, cur_id, 0);
809 self.apply_to_blk4(|blk4| blk4.mv = [mv0, mv1]);
810 self.apply_to_blk8(|blk8| blk8.ref_idx = [ref0, ref1]);
813 let (mv0, ref0, mv1, ref1) = self.get_direct_mv(frame_refs, &col_mb, r1_poc, r1_long, temporal_mv, cur_id, blk4);
814 self.get_cur_blk4(blk4).mv = [mv0, mv1];
815 self.get_cur_blk8(blk4_to_blk8(blk4)).ref_idx = [ref0, ref1];
819 pub fn predict_direct_sub(&mut self, frame_refs: &SimplifiedSliceRefs, temporal_mv: bool, direct8x8: bool, cur_id: u16, blk4: usize) {
820 let src_blk = if !direct8x8 { blk4 } else { BLK4_TO_D8[blk4] };
821 let (mbi, r1_poc, r1_long) = frame_refs.get_colocated_info(self.mb_x, self.mb_y);
822 let (mv0, ref0, mv1, ref1) = self.get_direct_mv(frame_refs, &mbi, r1_poc, r1_long, temporal_mv, cur_id, src_blk);
823 self.get_cur_blk4(blk4).mv = [mv0, mv1];
824 self.get_cur_blk8(blk4_to_blk8(blk4)).ref_idx = [ref0, ref1];
826 #[allow(clippy::nonminimal_bool)]
827 pub fn get_direct_mv(&self, frame_refs: &SimplifiedSliceRefs, mbi: &FrameMBInfo, r1_poc: u16, r1_long: bool, temporal_mv: bool, cur_id: u16, blk4: usize) -> (MV, PicRef, MV, PicRef) {
828 let blk8 = blk4_to_blk8(blk4);
829 let (col_mv, r0_poc, col_idx) = if mbi.ref_poc[blk8] == [MISSING_POC; 2] {
830 (ZERO_MV, MISSING_POC, MISSING_REF)
831 } else if mbi.ref_poc[blk8][0] != MISSING_POC {
832 (mbi.mv[blk4][0], mbi.ref_poc[blk8][0], mbi.ref_idx[blk8][0])
834 (mbi.mv[blk4][1], mbi.ref_poc[blk8][1], mbi.ref_idx[blk8][1])
836 let (col_ref, r0_long) = frame_refs.map_ref0(r0_poc);
838 let td = (i32::from(r1_poc) - i32::from(r0_poc)).max(-128).min(127);
839 if r0_long || td == 0 {
840 (col_mv, col_ref, ZERO_MV, ZERO_REF)
842 let tx = (16384 + (td / 2).abs()) / td;
843 let tb = (i32::from(cur_id) - i32::from(r0_poc)).max(-128).min(127);
844 let scale = ((tb * tx + 32) >> 6).max(-1024).min(1023);
846 x: ((i32::from(col_mv.x) * scale + 128) >> 8) as i16,
847 y: ((i32::from(col_mv.y) * scale + 128) >> 8) as i16,
849 let mv1 = mv0 - col_mv;
850 (mv0, col_ref, mv1, ZERO_REF)
853 let blk4 = 0; // we generate the same MV prediction for the whole MB
854 let blk8 = blk4_to_blk8(blk4);
855 let midx = self.get_cur_blk4_idx(blk4);
856 let ridx = self.get_cur_blk8_idx(blk8);
857 let ridx_c = self.get_cur_blk8_idx(blk8) + 16 / 8 - self.blk8.stride;
859 let mv_a = self.blk4.data[midx - 1].mv;
860 let mv_b = self.blk4.data[midx - self.blk4.stride].mv;
861 let mut mv_c = self.blk4.data[midx - self.blk4.stride + 16 / 4].mv;
863 let ref_a = self.blk8.data[ridx - 1].ref_idx;
864 let ref_b = self.blk8.data[ridx - self.blk8.stride].ref_idx;
865 let mut ref_c = self.blk8.data[ridx_c].ref_idx;
867 if ref_c == [MISSING_REF; 2] {
868 mv_c = self.blk4.data[midx - self.blk4.stride - 1].mv;
869 ref_c = self.blk8.data[ridx - self.blk8.stride - 1].ref_idx;
871 let mut refs = [INVALID_REF; 2];
872 for cur_ref in [ref_a, ref_b, ref_c].iter() {
873 refs[0] = refs[0].min_pos(cur_ref[0]);
874 refs[1] = refs[1].min_pos(cur_ref[1]);
876 if refs == [INVALID_REF; 2] {
877 return (ZERO_MV, ZERO_REF, ZERO_MV, ZERO_REF);
880 let mut col_zero = true;
881 if r1_long || col_idx != ZERO_REF {
884 if col_mv.x.abs() > 1 || col_mv.y.abs() > 1 {
887 let mut mvs = [ZERO_MV; 2];
889 if mbi.mb_type.is_intra() || (!refs[ref_l].not_avail() && !(refs[ref_l] == ZERO_REF && col_zero)) {
890 let ref_idx = refs[ref_l];
891 mvs[ref_l] = if ref_b[ref_l] == MISSING_REF && ref_c[ref_l] == MISSING_REF {
894 let count = ((ref_a[ref_l] == ref_idx) as u8) + ((ref_b[ref_l] == ref_idx) as u8) + ((ref_c[ref_l] == ref_idx) as u8);
896 if ref_a[ref_l] == ref_idx {
898 } else if ref_b[ref_l] == ref_idx {
904 MV::pred(mv_a[ref_l], mv_b[ref_l], mv_c[ref_l])
909 (mvs[0], refs[0], mvs[1], refs[1])
912 pub fn fill_mv(&mut self, xpos: usize, ypos: usize, bw: usize, bh: usize, ref_l: usize, mv: MV) {
913 let start = self.get_cur_blk4_idx(0) + xpos / 4 + ypos / 4 * self.blk4.stride;
914 for row in self.blk4.data[start..].chunks_mut(self.blk4.stride).take(bh / 4) {
915 for blk in row[..bw / 4].iter_mut() {
920 pub fn fill_mvd(&mut self, xpos: usize, ypos: usize, bw: usize, bh: usize, ref_l: usize, mv: MV) {
921 let mvd = MV{ x: mv.x.abs().min(128), y: mv.y.abs().min(128) };
922 let start = self.get_cur_blk4_idx(0) + xpos / 4 + ypos / 4 * self.blk4.stride;
923 for row in self.blk4.data[start..].chunks_mut(self.blk4.stride).take(bh / 4) {
924 for blk in row[..bw / 4].iter_mut() {
925 blk.mvd[ref_l] = mvd;
929 pub fn fill_ref(&mut self, xpos: usize, ypos: usize, bw: usize, bh: usize, ref_l: usize, ref_idx: PicRef) {
930 let start = self.get_cur_blk8_idx(0) + xpos / 8 + ypos / 8 * self.blk8.stride;
931 if bw < 8 || bh < 8 {
932 self.blk8.data[start].ref_idx[ref_l] = ref_idx;
934 for row in self.blk8.data[start..].chunks_mut(self.blk8.stride).take(bh / 8) {
935 for blk in row[..bw / 8].iter_mut() {
936 blk.ref_idx[ref_l] = ref_idx;
943 #[cfg(not(target_arch="x86_64"))]
944 fn mvdiff4(mv1: &[MV; 2], mv2: &[MV; 2]) -> bool {
945 let mvd0 = mv1[0] - mv2[0];
946 let mvd1 = mv1[1] - mv2[1];
947 (mvd0.x.abs() >= 4) || (mvd0.y.abs() >= 4) || (mvd1.x.abs() >= 4) || (mvd1.y.abs() >= 4)
950 #[cfg(target_arch="x86_64")]
951 fn mvdiff4(mv1: &[MV; 2], mv2: &[MV; 2]) -> bool {
953 let mut flag = false;
954 let ptr = std::mem::transmute::<*const MV, *const u64>(mv1.as_ptr());
956 let ptr = std::mem::transmute::<*const MV, *const u64>(mv2.as_ptr());
959 let tmp = m0.wrapping_sub(m1) as u16;
960 flag |= tmp.wrapping_add(3) > 6;