--- /dev/null
+use std::rc::Rc;
+use std::cell::RefCell;
+use formats::YUV420_FORMAT;
+use frame::*;
+use codecs::{NADecoder, MV, ZERO_MV, DecoderError, DecoderResult, IPBShuffler};
+use io::byteio::{MemoryReader,ByteReader};
+use io::bitreader::{BitReader,BitReaderMode};
+use io::intcode::*;
+
+use super::rv60codes::*;
+use super::rv60dsp::*;
+
+struct UniqueList<A> {
+ list: [A; 4],
+ fill: usize,
+ max_size: usize,
+}
+
+impl<A:Copy+Default+PartialEq> UniqueList<A> {
+ fn new(max_size: usize) -> Self {
+ Self { list: [A::default(); 4], fill: 0, max_size }
+ }
+ fn add(&mut self, cand: A) {
+ if self.fill == self.max_size { return; }
+ let mut unique = true;
+ for el in self.list.into_iter().take(self.fill) {
+ if *el == cand {
+ unique = false;
+ break;
+ }
+ }
+ if unique {
+ self.list[self.fill] = cand;
+ self.fill += 1;
+ }
+ }
+}
+
+const RV60_FRAME_TYPES: [FrameType; 4] = [ FrameType::I, FrameType::P, FrameType::B, FrameType::Other ];
+const MAX_IMODE: u8 = 34;
+
+#[derive(Clone,Copy,Debug)]
+struct FrameHeader {
+ profile: u8,
+ ftype: FrameType,
+ qp: u8,
+ osvquant: u8,
+ ts: u32,
+ width: usize,
+ height: usize,
+ two_f_refs: bool,
+ qp_off_type: u8,
+ deblock: bool,
+ deblock_chroma: bool,
+}
+
+const RV60_CUSTOM_MSG_LENS: [u32; 4] = [ 2, 4, 16, 32 ];
+impl FrameHeader {
+ fn read(br: &mut BitReader) -> DecoderResult<Self> {
+ let marker = br.read(2)?;
+ validate!(marker == 3);
+ let profile = br.read(2)? as u8;
+ validate!(profile == 0);
+ let _someval = br.read(4)?;
+ let ftypeid = br.read(2)? as usize;
+ let ftype = RV60_FRAME_TYPES[ftypeid];
+ let qp = br.read(6)? as u8;
+ let marker = br.read(1)?;
+ validate!(marker == 0);
+ let toolset = br.read(2)?;
+ validate!(toolset == 0);
+ let osvquant = br.read(2)? as u8;
+ let _some_flag = br.read_bool()?;
+ let _some_val = br.read(2)?;
+ let ts = br.read(24)?;
+ let width = ((br.read(11)? as usize) + 1) * 4;
+ let height = ((br.read(11)? as usize) + 0) * 4;
+ validate!(height > 0);
+ let _some_flag = br.read_bool()?;
+ let two_f_refs;
+ if ftype == FrameType::I {
+//byte17 = 0
+ two_f_refs = false;
+ } else {
+ let flag = br.read_bool()?;
+ if flag { // untested
+ br.skip(1)?;
+ br.skip(1)?;
+ br.skip(1)?;
+ }
+//byte17 = flag?
+ two_f_refs = br.read_bool()?;
+ }
+// if byte17 { dw40 = 2; dw3C = 2; } else { dw40 = 1; dw3C = 1; }
+ let _some_val = br.read_code(UintCodeType::Unary012)?; // luma_qp_diff?
+ let chroma_qp_diff = br.read(1)?;
+ validate!(chroma_qp_diff == 0);
+ let qp_off_type = br.read_code(UintCodeType::Unary012)? as u8;
+ let deblock = br.read_bool()?;
+ let deblock_chroma = deblock && !br.read_bool()?;
+ if br.read_bool()? {
+ let custom_msg_hdr_len = br.read(2)? as usize;
+ if custom_msg_hdr_len != 0 {
+ for i in 0..custom_msg_hdr_len {
+ br.skip(RV60_CUSTOM_MSG_LENS[i] * 8)?;
+ }
+ }
+ }
+
+ Ok(FrameHeader {
+ profile, ftype, qp, osvquant, ts, width, height, two_f_refs, qp_off_type,
+ deblock, deblock_chroma,
+ })
+ }
+ fn parse_slice_sizes(&self, br: &mut BitReader, sizes: &mut Vec<usize>) -> DecoderResult<()> {
+ let nslices = self.get_height_cu();
+ let nbits = (br.read(5)? as u8) + 1;
+ validate!(nbits < 32);
+ let mut signs: Vec<bool> = Vec::with_capacity(nslices);
+ for _ in 0..nslices {
+ let sign = br.read_bool()?;
+ signs.push(sign);
+ }
+ validate!(signs[0]);
+ sizes.truncate(0);
+ let mut sum = 0;
+ let first_size = br.read(nbits)? as usize;
+ validate!(first_size > 0);
+ sum += first_size;
+ let mut lastsize = first_size;
+ sizes.push(first_size);
+ for i in 1..nslices {
+ let diff = br.read(nbits)? as isize;
+ let size;
+ if signs[i] {
+ let sum = (lastsize as isize).checked_add(diff);
+ validate!(sum.is_some());
+ size = sum.unwrap() as usize;
+ } else {
+ let sum = (lastsize as isize).checked_sub(diff);
+ validate!(sum.is_some());
+ size = sum.unwrap() as usize;
+ }
+ sizes.push(size);
+ sum += size;
+ lastsize = size;
+ }
+ br.align();
+if ((br.left() >> 3) as usize) != sum {
+println!(" left {} / {}", br.left() >> 3, sum);
+}
+ validate!((br.left() >> 3) >= (sum as isize));
+ Ok(())
+ }
+ fn read_line_qp_offset(&self, br: &mut BitReader) -> DecoderResult<i8> {
+ match self.qp_off_type {
+ 0 => Ok(0),
+ 1 => {
+ let val = br.read_code(UintCodeType::Unary012)?;
+ if val != 2 {
+ Ok(val as i8)
+ } else {
+ Ok(-1)
+ }
+ },
+ _ => {
+ if br.read(1)? == 0 {
+ Ok(0)
+ } else {
+ let val = br.read(2)? as i8;
+ if (val & 2) == 0 {
+ Ok(val + 1)
+ } else {
+ Ok(-((val & 1) + 1))
+ }
+ }
+ },
+ }
+ }
+ fn get_width_cu(&self) -> usize {
+ (self.width + 63) >> 6
+ }
+ fn get_height_cu(&self) -> usize {
+ (self.height + 63) >> 6
+ }
+ fn has_top_block(&self, xpos: usize, ypos: usize, dx: usize, dy: usize, size: usize) -> bool {
+ if (ypos + dy) == 0 { return false; }
+ let xpos2 = xpos + dx;
+ if (xpos2 + size) > self.width { return false; }
+ true
+ }
+ fn has_top_right_block(&self, xpos: usize, ypos: usize, dx: usize, dy: usize, size: usize) -> bool {
+ if (ypos + dy) == 0 { return false; }
+ let xpos2 = xpos + dx;
+ if (xpos2 + size * 2) > self.width { return false; }
+ let cxpos = ((xpos + dx) & 63) >> RV60_BLOCK_LOG2[size];
+ let cypos = ((ypos + dy) & 63) >> RV60_BLOCK_LOG2[size];
+ ((cypos as u8) & RV60_AVAIL_MASK[cxpos]) == 0
+ }
+ fn has_left_block(&self, xpos: usize, ypos: usize, dx: usize, dy: usize, size: usize) -> bool {
+ if (xpos + dx) == 0 { return false; }
+ let ypos2 = ypos + dy;
+ if (ypos2 + size) > self.height { return false; }
+ true
+ }
+ fn has_left_down_block(&self, xpos: usize, ypos: usize, dx: usize, dy: usize, size: usize) -> bool {
+ if (xpos + dx) == 0 { return false; }
+ let ypos2 = ypos + dy;
+ if (ypos2 + size * 2) > self.height { return false; }
+ let cxpos = (!(xpos + dx) & 63) >> RV60_BLOCK_LOG2[size];
+ let cypos = (!(ypos + dy) & 63) >> RV60_BLOCK_LOG2[size];
+ ((cypos as u8) & RV60_AVAIL_MASK[cxpos]) >= 1
+ }
+}
+
+const RV60_BLOCK_LOG2: [u8; 65] = [
+ 0,
+ 0, 1, 0, 2, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 4,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5,
+ 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, 6
+];
+const RV60_AVAIL_MASK: [u8; 64] = [
+ 0, 1, 0, 3, 0, 1, 0, 7, 0, 1, 0, 3, 0, 1, 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
+];
+
+#[derive(Clone,Copy,PartialEq,Debug)]
+enum CUType {
+ Intra,
+ InterMV,
+ Skip,
+ InterNoMV,
+}
+
+impl Default for CUType {
+ fn default() -> Self { CUType::Intra }
+}
+
+const RV60_CU_TYPES: [CUType; 4] = [ CUType::Intra, CUType::InterMV, CUType::Skip, CUType::InterNoMV ];
+
+#[derive(Clone,Copy,PartialEq,Debug)]
+enum PUType {
+ Full,
+ N2Hor,
+ N2Ver,
+ Quarters,
+ N4Hor,
+ N34Hor,
+ N4Ver,
+ N34Ver,
+}
+
+const RV60_PU_TYPES: [PUType; 8] = [
+ PUType::Full, PUType::N2Hor, PUType::N2Ver, PUType::Quarters,
+ PUType::N4Hor, PUType::N34Hor, PUType::N4Ver, PUType::N34Ver,
+];
+
+impl PUType {
+ fn get_num_mvs(&self) -> usize {
+ match *self {
+ PUType::Full => 1,
+ PUType::Quarters => 4,
+ _ => 2,
+ }
+ }
+ fn get_mv_size(&self, part_no: usize, size: usize) -> (usize, usize) {
+ let mv_size = size >> 2;
+ match *self {
+ PUType::Full => (mv_size, mv_size),
+ PUType::N2Hor => (mv_size, mv_size >> 1),
+ PUType::N2Ver => (mv_size >> 1, mv_size),
+ PUType::Quarters => (mv_size >> 1, mv_size >> 1),
+ PUType::N4Hor => {
+ if part_no == 0 {
+ (mv_size, mv_size >> 2)
+ } else {
+ (mv_size, 3 * mv_size >> 2)
+ }
+ },
+ PUType::N34Hor => {
+ if part_no == 0 {
+ (mv_size, 3 * mv_size >> 2)
+ } else {
+ (mv_size, mv_size >> 2)
+ }
+ },
+ PUType::N4Ver => {
+ if part_no == 0 {
+ ( mv_size >> 2, mv_size)
+ } else {
+ (3 * mv_size >> 2, mv_size)
+ }
+ },
+ PUType::N34Ver => {
+ if part_no == 0 {
+ (3 * mv_size >> 2, mv_size)
+ } else {
+ ( mv_size >> 2, mv_size)
+ }
+ },
+ }
+ }
+ fn has_hor_split(&self) -> bool {
+ match *self {
+ PUType::N2Hor | PUType::N4Hor | PUType::N34Hor | PUType::Quarters => true,
+ _ => false,
+ }
+ }
+ fn has_ver_split(&self) -> bool {
+ match *self {
+ PUType::N2Ver | PUType::N4Ver | PUType::N34Ver | PUType::Quarters => true,
+ _ => false,
+ }
+ }
+}
+
+impl Default for PUType {
+ fn default() -> Self { PUType::Full }
+}
+
+#[derive(Clone,Copy,Debug)]
+enum IntraMode {
+ Index(u8),
+ Mode(u8),
+ DC64,
+ Plane64,
+}
+
+#[derive(Clone,Copy,PartialEq,Debug)]
+enum TransformType {
+ None,
+ T4X4,
+ T8X8,
+ T16X16,
+}
+
+impl Default for TransformType {
+ fn default() -> Self { TransformType::None }
+}
+
+#[derive(Clone,Copy,PartialEq,Debug)]
+enum MVRef {
+ None,
+ Ref0,
+ Ref1,
+ BRef,
+ Ref0AndBRef,
+ Skip0,
+ Skip1,
+ Skip2,
+ Skip3,
+}
+
+const SKIP_MV_REF: [MVRef; 4] = [ MVRef::Skip0, MVRef::Skip1, MVRef::Skip2, MVRef::Skip3 ];
+
+impl MVRef {
+ fn get_skip_mv_num(&self) -> usize {
+ match *self {
+ MVRef::Skip1 => 1,
+ MVRef::Skip2 => 2,
+ MVRef::Skip3 => 3,
+ _ => 0,
+ }
+ }
+ fn is_ref0(&self) -> bool {
+ match *self {
+ MVRef::Ref0 | MVRef::Ref0AndBRef => true,
+ _ => false,
+ }
+ }
+ fn is_fwd(&self) -> bool {
+ match *self {
+ MVRef::Ref0 | MVRef::Ref1 | MVRef::Ref0AndBRef => true,
+ _ => false,
+ }
+ }
+ fn is_bwd(&self) -> bool {
+ match *self {
+ MVRef::BRef | MVRef::Ref0AndBRef => true,
+ _ => false,
+ }
+ }
+}
+
+#[derive(Clone,Copy,PartialEq,Debug)]
+struct MVInfo {
+ f_mv: MV,
+ b_mv: MV,
+ mvref: MVRef,
+}
+
+impl MVInfo {
+ fn is_some(&self) -> bool { self.mvref != MVRef::None }
+ fn matches_fwd(&self, mvref: MVRef) -> bool {
+ (self.mvref == mvref) || (self.mvref.is_ref0() && mvref.is_ref0())
+ }
+ fn matches_bwd(&self, mvref: MVRef) -> bool {
+ self.mvref.is_bwd() && mvref.is_bwd()
+ }
+ fn is_deblock_cand(&self, other: &MVInfo) -> bool {
+ if self.mvref != other.mvref { return true; }
+ let mut mvdiff = 0;
+ if self.mvref.is_fwd() {
+ let diff = self.f_mv - other.f_mv;
+ mvdiff += diff.x.abs() + diff.y.abs();
+ }
+ if self.mvref.is_bwd() {
+ let diff = self.b_mv - other.b_mv;
+ mvdiff += diff.x.abs() + diff.y.abs();
+ }
+ mvdiff > 4
+ }
+}
+
+impl Default for MVInfo {
+ fn default() -> Self { Self { f_mv: ZERO_MV, b_mv: ZERO_MV, mvref: MVRef::None } }
+}
+
+#[derive(Clone,Copy,Debug)]
+struct CBHeader {
+ cu_type: CUType,
+ pu_type: PUType,
+ ttype: TransformType,
+ imode: [IntraMode; 4],
+ mv: [MVInfo; 4],
+}
+
+impl CBHeader {
+ fn read(br: &mut BitReader, ftype: FrameType, two_f_refs: bool, size: usize) -> DecoderResult<Self> {
+ let cu_type;
+ let pu_type;
+ let mut imode: [IntraMode; 4] = [IntraMode::Index(0); 4];
+ let mut mv: [MVInfo; 4] = [MVInfo::default(); 4];
+ if ftype == FrameType::I {
+ cu_type = CUType::Intra;
+ } else {
+ cu_type = RV60_CU_TYPES[br.read(2)? as usize];
+ }
+ match cu_type {
+ CUType::Intra => {
+ if (size == 8) && br.read_bool()? {
+ pu_type = PUType::Quarters;
+ } else {
+ pu_type = PUType::Full;
+ }
+ if pu_type == PUType::Quarters {
+ for i in 0..4 {
+ imode[i] = CBHeader::read_intra_mode(br)?;
+ }
+ } else if size <= 32 {
+ imode[0] = CBHeader::read_intra_mode(br)?;
+ } else {
+ if !br.read_bool()? {
+ imode[0] = IntraMode::DC64;
+ } else {
+ imode[0] = IntraMode::Plane64;
+ }
+ }
+ },
+ CUType::InterMV => {
+ let bits = if size == 8 { 2 } else { 3 };
+ pu_type = RV60_PU_TYPES[br.read(bits)? as usize];
+ CBHeader::read_mv_data(br, ftype, two_f_refs, size, pu_type, &mut mv)?;
+ },
+ _ => {
+ pu_type = PUType::Full;
+ let skip_mv_no = br.read_code(UintCodeType::LimitedUnary(3, 0))?;
+ mv[0].mvref = SKIP_MV_REF[skip_mv_no as usize];
+ },
+ };
+ let ttype;
+ if cu_type == CUType::Skip {
+ ttype = TransformType::None;
+ } else if size >= 32 {
+ ttype = TransformType::T16X16;
+ } else if size == 16 {
+ if (cu_type == CUType::Intra) || (pu_type == PUType::Full) {
+ ttype = TransformType::T16X16;
+ } else {
+ ttype = TransformType::T4X4;
+ }
+ } else {
+ if pu_type == PUType::Full {
+ ttype = TransformType::T8X8;
+ } else {
+ ttype = TransformType::T4X4;
+ }
+ }
+ Ok(Self {
+ cu_type, pu_type, ttype, imode, mv,
+ })
+ }
+ fn read_intra_mode(br: &mut BitReader) -> DecoderResult<IntraMode> {
+ if br.read_bool()? {
+ let idx = br.read_code(UintCodeType::Unary012)? as u8;
+ Ok(IntraMode::Index(idx))
+ } else {
+ let mode = br.read(5)? as u8;
+ Ok(IntraMode::Mode(mode))
+ }
+ }
+ fn read_mv_data(br: &mut BitReader, ftype: FrameType, two_f_refs: bool, size: usize, pu_type: PUType, mv: &mut [MVInfo; 4]) -> DecoderResult<()> {
+ let mv_count = pu_type.get_num_mvs();
+ for i in 0..mv_count {
+ mv[i] = CBHeader::read_mv_info(br, ftype, two_f_refs, size, pu_type)?;
+ }
+ Ok(())
+ }
+ fn read_mv_info(br: &mut BitReader, ftype: FrameType, two_f_refs: bool, size: usize, pu_type: PUType) -> DecoderResult<MVInfo> {
+ let mut f_mv = ZERO_MV;
+ let mut b_mv = ZERO_MV;
+ let mvref;
+ if ftype != FrameType::B {
+ if two_f_refs && br.read_bool()? {
+ mvref = MVRef::Ref1;
+ } else {
+ mvref = MVRef::Ref0;
+ }
+ f_mv = CBHeader::read_mv(br)?;
+ Ok(MVInfo { f_mv, b_mv: ZERO_MV, mvref })
+ } else {
+ if ((size <= 8) && ((size != 8) || (pu_type != PUType::Full))) || br.read_bool()? {
+ if !br.read_bool()? {
+ mvref = MVRef::Ref0;
+ f_mv = CBHeader::read_mv(br)?;
+ } else {
+ mvref = MVRef::BRef;
+ b_mv = CBHeader::read_mv(br)?;
+ }
+ } else {
+ mvref = MVRef::Ref0AndBRef;
+ f_mv = CBHeader::read_mv(br)?;
+ b_mv = CBHeader::read_mv(br)?;
+ }
+ Ok(MVInfo { f_mv, b_mv, mvref })
+ }
+ }
+ fn read_mv(br: &mut BitReader) -> DecoderResult<MV> {
+ let x = br.read_code_signed(IntCodeType::Gamma)? as i16;
+ let y = br.read_code_signed(IntCodeType::Gamma)? as i16;
+ Ok(MV { x, y })
+ }
+}
+
+#[derive(Clone,Copy,Default)]
+struct PUInfo {
+ cu_type: CUType,
+ ttype: TransformType,
+}
+
+impl PUInfo {
+ fn is_intra(&self) -> bool { self.cu_type == CUType::Intra }
+}
+
+const RV60_CANDIDATE_INTRA_ANGLES: [u8; 6] = [ 0, 1, 10, 26, 18, 2 ];
+
+#[derive(Clone,Copy,Default)]
+struct BlockInfo {
+ mv: MVInfo,
+ imode: u8,
+}
+
+struct DeblockInfo {
+ left_str: Vec<u8>,
+ top_str: Vec<u8>,
+ stride: usize,
+}
+
+impl DeblockInfo {
+ fn new() -> Self {
+ Self { left_str: Vec::new(), top_str: Vec::new(), stride: 0 }
+ }
+ fn reinit(&mut self, w: usize, h: usize) {
+ self.left_str.clear();
+ self.top_str.clear();
+ self.stride = w >> 2;
+ let size = self.stride * (h >> 2);
+ self.left_str.resize(size, 0);
+ self.top_str.resize(size, 0);
+ }
+ fn set_strength(&mut self, xpos: usize, ypos: usize, size: usize, q: u8, strength: u8) {
+ let pos = self.get_pos(xpos, ypos);
+ let dsize = size >> 2;
+ let dval = (q << 2) | strength;
+ for x in 0..dsize {
+ self.top_str[pos + x] = dval;
+ }
+ for y in 0..dsize {
+ self.left_str[pos + y * self.stride] = dval;
+ }
+ }
+ fn get_pos(&self, xpos: usize, ypos: usize) -> usize {
+ (xpos >> 2) + (ypos >> 2) * self.stride
+ }
+ fn get_top_strength(&self, pos: usize) -> u8 {
+ self.top_str[pos] & 3
+ }
+ fn get_left_strength(&self, pos: usize) -> u8 {
+ self.left_str[pos] & 3
+ }
+ fn set_top_strength(&mut self, pos: usize, str: u8) {
+ self.top_str[pos] |= str;
+ }
+ fn set_left_strength(&mut self, pos: usize, str: u8) {
+ self.left_str[pos] |= str;
+ }
+}
+
+struct RealVideo60Decoder {
+ info: Rc<NACodecInfo>,
+ cbs: RV60Codebooks,
+ ipbs: IPBShuffler,
+ dsp: RV60DSP,
+ ipred: IntraPredContext,
+
+ avg_buf: NAVideoBuffer<u8>,
+
+ y_coeffs: [i16; 16 * 16],
+ u_coeffs: [i16; 8 * 8],
+ v_coeffs: [i16; 8 * 8],
+ qp: u8,
+ sel_qp: u8,
+
+ cu_splits: Vec<bool>,
+ coded_blk: [bool; 64],
+ dblk: DeblockInfo,
+
+ pu_info: Vec<PUInfo>,
+ pu_stride: usize,
+ pu_pos: usize,
+
+ blk_info: Vec<BlockInfo>,
+ blk_stride: usize,
+ blk_pos: usize,
+
+ xpos: usize,
+ ypos: usize,
+}
+
+impl RealVideo60Decoder {
+ fn new() -> Self {
+ let tmp_vinfo = NAVideoInfo::new(64, 64, false, YUV420_FORMAT);
+ let mut vt = alloc_video_buffer(tmp_vinfo, 4).unwrap();
+ let vb = vt.get_vbuf();
+ let avg_buf = vb.unwrap();
+ RealVideo60Decoder{
+ info: Rc::new(DUMMY_CODEC_INFO),
+ cbs: RV60Codebooks::init(),
+ ipbs: IPBShuffler::new(),
+ ipred: IntraPredContext::new(),
+ dsp: RV60DSP::new(),
+ avg_buf: avg_buf,
+ y_coeffs: [0; 16 * 16],
+ u_coeffs: [0; 8 * 8],
+ v_coeffs: [0; 8 * 8],
+ qp: 0,
+ sel_qp: 0,
+ cu_splits: Vec::with_capacity(24),
+ coded_blk: [false; 64],
+ dblk: DeblockInfo::new(),
+ pu_info: Vec::new(),
+ pu_stride: 0,
+ pu_pos: 0,
+ blk_info: Vec::new(),
+ blk_stride: 0,
+ blk_pos: 0,
+ xpos: 0,
+ ypos: 0,
+ }
+ }
+ fn decode_cu_line(&mut self, buf: &mut NAVideoBuffer<u8>, hdr: &FrameHeader, src: &[u8], cu_y: usize) -> DecoderResult<()> {
+ let mut br = BitReader::new(src, src.len(), BitReaderMode::BE);
+ let cu_w = hdr.get_width_cu();
+ let dqp = hdr.read_line_qp_offset(&mut br)?;
+ let qps = (hdr.qp as i8) + dqp;
+ validate!((qps >= 0) && (qps < 32));
+ let qp = qps as u8;
+ self.qp = qp;
+ self.sel_qp = match hdr.osvquant {
+ 0 => qp,
+ 1 => {
+ if qp <= 25 {
+ qp + 5
+ } else {
+ qp
+ }
+ },
+ _ => {
+ if qp <= 18 {
+ qp + 10
+ } else if qp <= 25 {
+ qp + 5
+ } else {
+ qp
+ }
+ },
+ };
+
+ for cu_x in 0..cu_w {
+ self.cu_splits.clear();
+ self.coded_blk = [false; 64];
+ self.decode_cb_tree(buf, hdr, &mut br, cu_x << 6, cu_y << 6, 6)?;
+ if hdr.deblock {
+ self.cu_splits.reverse();
+ self.deblock_cb_tree(buf, hdr, cu_x << 6, cu_y << 6, 6);
+ }
+ }
+if br.left() >= 8 {
+println!(" left {} bits", br.left());
+}
+ Ok(())
+ }
+ fn decode_cb_tree(&mut self, buf: &mut NAVideoBuffer<u8>, hdr: &FrameHeader, br: &mut BitReader, xpos: usize, ypos: usize, log_size: u8) -> DecoderResult<()> {
+ if (xpos >= hdr.width) || (ypos >= hdr.height) { return Ok(()); }
+
+ let size = 1 << log_size;
+ let split = (xpos + size > hdr.width) || (ypos + size > hdr.height) || (size > 8 && br.read_bool()?);
+ self.cu_splits.push(split);
+ if split {
+ let hsize = size >> 1;
+ self.decode_cb_tree(buf, hdr, br, xpos, ypos, log_size - 1)?;
+ self.decode_cb_tree(buf, hdr, br, xpos + hsize, ypos, log_size - 1)?;
+ self.decode_cb_tree(buf, hdr, br, xpos, ypos + hsize, log_size - 1)?;
+ self.decode_cb_tree(buf, hdr, br, xpos + hsize, ypos + hsize, log_size - 1)?;
+ } else {
+ let cbh = CBHeader::read(br, hdr.ftype, hdr.two_f_refs, size)?;
+ self.pu_pos = (xpos >> 3) + (ypos >> 3) * self.pu_stride;
+ self.blk_pos = (xpos >> 2) + (ypos >> 2) * self.blk_stride;
+ self.xpos = xpos;
+ self.ypos = ypos;
+ self.reconstruct_info(hdr, &cbh, size)?;
+
+ let split_i4x4 = (cbh.cu_type == CUType::Intra) && (size == 8) && (cbh.pu_type == PUType::Quarters);
+ match cbh.cu_type {
+ CUType::Intra => {
+ let itype = self.blk_info[self.blk_pos].imode;
+ if !split_i4x4 {
+ let dstride = buf.get_stride(0);
+ let off = xpos + ypos * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.populate_ipred(hdr, dst, 0, dstride, 0, 0, size, true);
+ self.ipred.pred_angle(dst, off, dstride, size, itype as usize, true);
+ }
+ for comp in 1..3 {
+ let dstride = buf.get_stride(comp);
+ let soff = buf.get_offset(comp);
+ let off = soff + (xpos >> 1) + (ypos >> 1) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.populate_ipred(hdr, dst, soff, dstride, 0, 0, size >> 1, false);
+ self.ipred.pred_angle(&mut dst, off, dstride, size >> 1, itype as usize, false);
+ }
+ },
+ _ => {
+ let mut mv_x = xpos >> 2;
+ let mut mv_y = ypos >> 2;
+ let mut mv_pos = mv_x + mv_y * self.blk_stride;
+ for part_no in 0..cbh.pu_type.get_num_mvs() {
+ let (mv_w, mv_h) = cbh.pu_type.get_mv_size(part_no, size);
+ let mv = self.blk_info[mv_pos].mv;
+ let bw = mv_w << 2;
+ let bh = mv_h << 2;
+ let bx = mv_x << 2;
+ let by = mv_y << 2;
+ match mv.mvref {
+ MVRef::Ref0 => {
+ if hdr.ftype != FrameType::B {
+ if let Some(ref prevbuf) = self.ipbs.get_lastref() {
+ self.dsp.do_mc(buf, prevbuf, bx, by, bw, bh, mv.f_mv, false);
+ }
+ } else {
+ if let Some(ref prevbuf) = self.ipbs.get_b_fwdref() {
+ self.dsp.do_mc(buf, prevbuf, bx, by, bw, bh, mv.f_mv, false);
+ }
+ }
+ },
+ MVRef::Ref1 => {
+ if let Some(ref prevbuf) = self.ipbs.get_nextref() {
+ self.dsp.do_mc(buf, prevbuf, bx, by, bw, bh, mv.f_mv, false);
+ }
+ },
+ MVRef::BRef => {
+ validate!(hdr.ftype == FrameType::B);
+ if let Some(ref prevbuf) = self.ipbs.get_b_bwdref() {
+ self.dsp.do_mc(buf, prevbuf, bx, by, bw, bh, mv.b_mv, false);
+ }
+ },
+ MVRef::Ref0AndBRef => {
+ validate!(hdr.ftype == FrameType::B);
+ if let (Some(ref prevbuf), Some(ref nextbuf)) = (self.ipbs.get_b_fwdref(), self.ipbs.get_b_bwdref()) {
+ self.dsp.do_mc(buf, prevbuf, bx, by, bw, bh, mv.f_mv, false);
+ self.dsp.do_mc(&mut self.avg_buf, nextbuf, bx, by, bw, bh, mv.b_mv, true);
+ self.dsp.do_avg(buf, &self.avg_buf, bx, by, bw, bh);
+ }
+ },
+ _ => unreachable!(),
+ };
+ if cbh.pu_type == PUType::Quarters {
+ if part_no != 1 {
+ mv_pos += mv_w;
+ mv_x += mv_w;
+ } else {
+ mv_pos += mv_h * self.blk_stride - mv_w;
+ mv_x -= mv_w;
+ mv_y += mv_h;
+ }
+ } else if cbh.pu_type.has_hor_split() {
+ mv_pos += mv_h * self.blk_stride;
+ mv_y += mv_h;
+ } else if cbh.pu_type.has_ver_split() {
+ mv_pos += mv_w;
+ mv_x += mv_w;
+ }
+ }
+ },
+ };
+ if cbh.ttype != TransformType::None {
+ self.y_coeffs = [0; 16 * 16];
+ self.u_coeffs = [0; 8 * 8];
+ self.v_coeffs = [0; 8 * 8];
+ }
+ let is_intra = cbh.cu_type == CUType::Intra;
+ let cb_pos = ((xpos & 63) >> 3) + ((ypos & 63) >> 3) * 8;
+ match cbh.ttype {
+ TransformType::T4X4 => {
+ let subset = if is_intra { 0 } else { 2 };
+ if size == 16 {
+ let cbp16;
+ if br.read_bool()? {
+ cbp16 = rv6_decode_cbp16(br, &self.cbs, subset, self.sel_qp)?;
+ } else {
+ cbp16 = 0;
+ }
+ if cbp16 != 0 {
+ self.coded_blk[cb_pos + 0] = true;
+ self.coded_blk[cb_pos + 1] = true;
+ self.coded_blk[cb_pos + 8] = true;
+ self.coded_blk[cb_pos + 9] = true;
+ rv6_decode_cu_4x4in16x16(br, &self.cbs, is_intra, self.qp, self.sel_qp, &mut self.y_coeffs, &mut self.u_coeffs, &mut self.v_coeffs, cbp16)?;
+ for y in 0..4 {
+ for x in 0..4 {
+ let i = x + y * 4;
+ if ((cbp16 >> i) & 1) != 0 {
+ self.dsp.transform4x4(&mut self.y_coeffs[i * 16..][..16]);
+ let dstride = buf.get_stride(0);
+ let off = xpos + x * 4 + (ypos + y * 4) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.y_coeffs[i*16..][..16], 4);
+ }
+ }
+ }
+ for y in 0..2 {
+ for x in 0..2 {
+ let i = x + y * 2;
+ let xoff = (xpos >> 1) + x * 4;
+ let yoff = (ypos >> 1) + y * 4;
+ if ((cbp16 >> (16 + i)) & 1) != 0 {
+ self.dsp.transform4x4(&mut self.u_coeffs[i * 16..][..16]);
+ let dstride = buf.get_stride(1);
+ let off = buf.get_offset(1) + xoff + yoff * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.u_coeffs[i * 16..][..16], 4);
+ }
+ if ((cbp16 >> (20 + i)) & 1) != 0 {
+ self.dsp.transform4x4(&mut self.v_coeffs[i * 16..][..16]);
+ let dstride = buf.get_stride(2);
+ let off = buf.get_offset(2) + xoff + yoff * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.v_coeffs[i * 16..][..16], 4);
+ }
+ }
+ }
+ }
+ } else {
+ let cbp8 = rv6_decode_cbp8(br, &self.cbs, subset, self.sel_qp)?;
+ if cbp8 != 0 {
+ self.coded_blk[cb_pos] = true;
+ rv6_decode_cu_8x8(br, &self.cbs, is_intra, self.qp, self.sel_qp, &mut self.y_coeffs, &mut self.u_coeffs, &mut self.v_coeffs, cbp8, true)?;
+ }
+ for i in 0..4 {
+ let xoff = (i & 1) * 4;
+ let yoff = (i & 2) * 2;
+ if split_i4x4 {
+ let dstride = buf.get_stride(0);
+ let off = xpos + xoff + (ypos + yoff) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.populate_ipred(hdr, dst, 0, dstride, xoff, yoff, 4, true);
+ let itype = self.blk_info[self.blk_pos + (i & 1) + (i >> 1) * self.blk_stride].imode;
+ self.ipred.pred_angle(&mut dst, off, dstride, 4, itype as usize, false);
+ }
+ if ((cbp8 >> i) & 1) != 0 {
+ let blk = &mut self.y_coeffs[i * 16..][..16];
+ self.dsp.transform4x4(blk);
+ let dstride = buf.get_stride(0);
+ let soff = buf.get_offset(0);
+ let off = soff + xpos + xoff + (ypos + yoff) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, blk, 4);
+ }
+ }
+ if ((cbp8 >> 4) & 1) != 0 {
+ self.dsp.transform4x4(&mut self.u_coeffs);
+ let dstride = buf.get_stride(1);
+ let soff = buf.get_offset(1);
+ let off = soff + (xpos >> 1) + (ypos >> 1) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.u_coeffs, 4);
+ }
+ if ((cbp8 >> 5) & 1) != 0 {
+ self.dsp.transform4x4(&mut self.v_coeffs);
+ let dstride = buf.get_stride(2);
+ let soff = buf.get_offset(2);
+ let off = soff + (xpos >> 1) + (ypos >> 1) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.v_coeffs, 4);
+ }
+ }
+ },
+ TransformType::T8X8 => {
+ let subset = if is_intra { 1 } else { 3 };
+ let cbp8 = rv6_decode_cbp8(br, &self.cbs, subset, self.sel_qp)?;
+ if cbp8 != 0 {
+ self.coded_blk[cb_pos] = true;
+ rv6_decode_cu_8x8(br, &self.cbs, is_intra, self.qp, self.sel_qp, &mut self.y_coeffs, &mut self.u_coeffs, &mut self.v_coeffs, cbp8, false)?;
+ if (cbp8 & 0xF) != 0 {
+ self.dsp.transform8x8(&mut self.y_coeffs);
+ let dstride = buf.get_stride(0);
+ let off = xpos + ypos * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.y_coeffs, 8);
+ }
+ if ((cbp8 >> 4) & 1) != 0 {
+ self.dsp.transform4x4(&mut self.u_coeffs);
+ let dstride = buf.get_stride(1);
+ let soff = buf.get_offset(1);
+ let off = soff + (xpos >> 1) + (ypos >> 1) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.u_coeffs, 4);
+ }
+ if ((cbp8 >> 5) & 1) != 0 {
+ self.dsp.transform4x4(&mut self.v_coeffs);
+ let dstride = buf.get_stride(2);
+ let soff = buf.get_offset(2);
+ let off = soff + (xpos >> 1) + (ypos >> 1) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.v_coeffs, 4);
+ }
+ }
+ },
+ TransformType::T16X16 => {
+ let subset = if is_intra { 1 } else { 3 };
+ let num_clusters = size >> 4;
+ let cl_cbp = br.read((num_clusters * num_clusters) as u8)?;
+ for y in 0..num_clusters {
+ for x in 0..num_clusters {
+ if ((cl_cbp >> (x + y * num_clusters)) & 1) == 0 { continue; }
+ self.coded_blk[cb_pos + x * 2 + y * 2 * 8 + 0] = true;
+ self.coded_blk[cb_pos + x * 2 + y * 2 * 8 + 1] = true;
+ self.coded_blk[cb_pos + x * 2 + y * 2 * 8 + 8] = true;
+ self.coded_blk[cb_pos + x * 2 + y * 2 * 8 + 9] = true;
+ let super_cbp = rv6_decode_cbp16(br, &self.cbs, subset, self.sel_qp)?;
+ if super_cbp != 0 {
+ self.y_coeffs = [0; 16 * 16];
+ self.u_coeffs = [0; 8 * 8];
+ self.v_coeffs = [0; 8 * 8];
+ rv6_decode_cu_16x16(br, &self.cbs, is_intra, self.qp, self.sel_qp, &mut self.y_coeffs, &mut self.u_coeffs, &mut self.v_coeffs, super_cbp)?;
+ if (super_cbp & 0xFFFF) != 0 {
+ self.dsp.transform16x16(&mut self.y_coeffs);
+ let dstride = buf.get_stride(0);
+ let off = xpos + x * 16 + (ypos + y * 16) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.y_coeffs, 16);
+ }
+ if ((super_cbp >> 16) & 0xF) != 0 {
+ self.dsp.transform8x8(&mut self.u_coeffs);
+ let dstride = buf.get_stride(1);
+ let soff = buf.get_offset(1);
+ let off = soff + (xpos >> 1) + x * 8 + ((ypos >> 1) + y * 8) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.u_coeffs, 8);
+ }
+ if ((super_cbp >> 20) & 0xF) != 0 {
+ self.dsp.transform8x8(&mut self.v_coeffs);
+ let dstride = buf.get_stride(2);
+ let soff = buf.get_offset(2);
+ let off = soff + (xpos >> 1) + x * 8 + ((ypos >> 1) + y * 8) * dstride;
+ let mut data = buf.get_data_mut();
+ let mut dst = &mut data;
+ self.dsp.add_block(&mut dst, off, dstride, &self.v_coeffs, 8);
+ }
+ }
+ }
+ }
+ },
+ _ => {},
+ };
+ }
+ Ok(())
+ }
+ fn reconstruct_info(&mut self, hdr: &FrameHeader, cbh: &CBHeader, size: usize) -> DecoderResult<()>{
+ let mut pui = PUInfo::default();
+ let pu_size = size >> 3;
+ pui.cu_type = cbh.cu_type;
+ pui.ttype = cbh.ttype;
+ if (cbh.cu_type == CUType::Intra) && (cbh.pu_type == PUType::Quarters) { // very special case
+ self.pu_info[self.pu_pos] = pui;
+ for y in 0..2 {
+ for x in 0..2 {
+ let imode = self.reconstruct_intra(hdr, cbh, 4, x + y * 2);
+ validate!(imode <= MAX_IMODE);
+ self.blk_info[self.blk_pos + x + y * self.blk_stride].imode = imode;
+ self.blk_info[self.blk_pos + x + y * self.blk_stride].mv = MVInfo::default();
+ }
+ }
+ return Ok(());
+ }
+ match cbh.cu_type {
+ CUType::Intra => {
+ self.pu_info[self.pu_pos] = pui;
+ let imode = self.reconstruct_intra(hdr, cbh, size, 0);
+ validate!(imode <= MAX_IMODE);
+ for y in 0..(size >> 2) {
+ for x in 0..(size >> 2) {
+ self.blk_info[self.blk_pos + x + y * self.blk_stride].imode = imode;
+ }
+ }
+ },
+ CUType::InterMV => {
+ let mut mv_x = self.xpos >> 2;
+ let mut mv_y = self.ypos >> 2;
+ let mut mv_pos = self.blk_pos;
+ let pu_type = cbh.pu_type;
+ for part_no in 0..pu_type.get_num_mvs() {
+ let (mv_w, mv_h) = pu_type.get_mv_size(part_no, size);
+ let mv = self.predict_mv(hdr, mv_x, mv_y, mv_w, &cbh.mv[part_no]);
+ for y in 0..mv_h {
+ for x in 0..mv_w {
+ self.blk_info[mv_pos + x + y * self.blk_stride].mv = mv;
+ }
+ }
+ if pu_type == PUType::Quarters {
+ if part_no != 1 {
+ mv_pos += mv_w;
+ mv_x += mv_w;
+ } else {
+ mv_pos += mv_h * self.blk_stride - mv_w;
+ mv_x -= mv_w;
+ mv_y += mv_h;
+ }
+ } else if pu_type.has_hor_split() {
+ mv_pos += mv_h * self.blk_stride;
+ mv_y += mv_h;
+ } else if pu_type.has_ver_split() {
+ mv_pos += mv_w;
+ mv_x += mv_w;
+ }
+ }
+ },
+ _ => {
+ let skip_idx = cbh.mv[0].mvref.get_skip_mv_num();
+ let mut skip_cand: UniqueList<MVInfo> = UniqueList::new(4);
+ self.fill_skip_cand(hdr, &mut skip_cand, size);
+ let mv = skip_cand.list[skip_idx];
+
+ let mv_size = size >> 2;
+ for y in 0..mv_size {
+ for x in 0..mv_size {
+ self.blk_info[self.blk_pos + x + y * self.blk_stride].mv = mv;
+ }
+ }
+ },
+ };
+ for y in 0..pu_size {
+ for x in 0..pu_size {
+ self.pu_info[self.pu_pos + x + y * self.pu_stride] = pui;
+ }
+ }
+ Ok(())
+ }
+ fn reconstruct_intra(&self, hdr: &FrameHeader, cbh: &CBHeader, size: usize, sub: usize) -> u8 {
+ match cbh.imode[0] {
+ IntraMode::DC64 => { return 1; },
+ IntraMode::Plane64 => { return 0; },
+ _ => {},
+ };
+ // form list of predictors
+ let blk_pos = self.blk_pos + (sub & 1) + (sub >> 1) * self.blk_stride;
+ let mut ipm_cand: UniqueList<u8> = UniqueList::new(3);
+ if hdr.has_top_block(self.xpos, self.ypos, (sub & 1) * 4, 0, size) {
+ let pu = &self.pu_info[self.pu_pos - self.pu_stride];
+ if pu.is_intra() {
+ ipm_cand.add(self.blk_info[self.blk_pos + (sub & 1) - self.blk_stride].imode);
+ }
+ }
+ if hdr.has_left_block(self.xpos, self.ypos, 0, (sub & 2) * 2, size) {
+ let pu = &self.pu_info[self.pu_pos - 1];
+ if pu.is_intra() {
+ ipm_cand.add(self.blk_info[blk_pos - 1 - (sub & 1)].imode);
+ }
+ }
+ let tl_x = if (sub & 2) == 0 { self.xpos + (sub & 1) * 4 } else { self.xpos };
+ let tl_y = self.ypos + (sub & 2) * 4;
+ if (tl_x > 0) && (tl_y > 0) {
+ let pu = match sub {
+ 0 => &self.pu_info[self.pu_pos - self.pu_stride - 1],
+ 1 => &self.pu_info[self.pu_pos - self.pu_stride],
+ 2 => &self.pu_info[self.pu_pos - 1],
+ _ => &self.pu_info[self.pu_pos - 1],
+ };
+ if pu.is_intra() {
+ if sub != 3 {
+ ipm_cand.add(self.blk_info[blk_pos - self.blk_stride - 1].imode);
+ } else {
+ ipm_cand.add(self.blk_info[blk_pos - self.blk_stride - 2].imode);
+ }
+ }
+ }
+ for el in RV60_CANDIDATE_INTRA_ANGLES.into_iter() {
+ ipm_cand.add(*el);
+ }
+ // actually decode prediction mode
+ match cbh.imode[sub] {
+ IntraMode::Index(idx) => {
+ ipm_cand.list[idx as usize]
+ },
+ IntraMode::Mode(mode) => {
+ let mut imode = mode;
+ let mut ipm_cs: [u8; 3] = [ipm_cand.list[0], ipm_cand.list[1], ipm_cand.list[2]];
+ ipm_cs.sort();
+ for ic in ipm_cs.into_iter() {
+ if imode >= *ic {
+ imode += 1;
+ }
+ }
+ imode
+ },
+ _ => unreachable!(),
+ }
+ }
+ fn populate_ipred(&mut self, hdr: &FrameHeader, src: &[u8], soff: usize, stride: usize, xoff: usize, yoff: usize, size: usize, is_luma: bool) {
+ let src_off = if is_luma {
+ soff + self.xpos + xoff + (self.ypos + yoff) * stride
+ } else {
+ soff + (self.xpos >> 1) + (self.ypos >> 1) * stride
+ };
+ self.ipred = IntraPredContext::new();
+ if (self.ypos + yoff) > 0 {
+ self.ipred.has_t = true;
+ for x in 0..size {
+ self.ipred.t[x + 1] = src[src_off - stride + x];
+ }
+ if (is_luma && hdr.has_top_right_block(self.xpos, self.ypos, xoff, yoff, size)) ||
+ (!is_luma && hdr.has_top_right_block(self.xpos, self.ypos, 0, 0, size << 1)) {
+ self.ipred.has_tr = true;
+ for x in size..size*2 {
+ self.ipred.t[x + 1] = src[src_off - stride + x];
+ }
+ } else {
+ for i in 0..size {
+ self.ipred.t[size + i + 1] = self.ipred.t[size];
+ }
+ }
+ if (self.xpos + xoff) > 0 {
+ self.ipred.t[0] = src[src_off - stride - 1];
+ }
+ }
+ if (self.xpos + xoff) > 0 {
+ self.ipred.has_l = true;
+ for y in 0..size {
+ self.ipred.l[y + 1] = src[src_off - 1 + y * stride];
+ }
+ if (is_luma && hdr.has_left_down_block(self.xpos, self.ypos, xoff, yoff, size)) ||
+ (!is_luma && hdr.has_left_down_block(self.xpos, self.ypos, 0, 0, size << 1)) {
+ self.ipred.has_ld = true;
+ for y in size..size*2 {
+ self.ipred.l[y + 1] = src[src_off - 1 + y * stride];
+ }
+ } else {
+ for i in 0..size {
+ self.ipred.l[size + i + 1] = self.ipred.l[size];
+ }
+ }
+ if (self.ypos + yoff) > 0 {
+ self.ipred.l[0] = src[src_off - stride - 1];
+ }
+ }
+ }
+ fn predict_mv(&self, hdr: &FrameHeader, mv_x: usize, mv_y: usize, mv_w: usize, mvi: &MVInfo) -> MVInfo {
+ let mv_pos = mv_x + mv_y * self.blk_stride;
+ let f_mv: MV;
+ let b_mv: MV;
+ if mvi.mvref.is_fwd() {
+ let mut mv_cand: [MV; 3] = [ZERO_MV; 3];
+ let mut mv_cand_size: usize = 0;
+ if mv_x > 0 {
+ let ref_mv = &self.blk_info[mv_pos - 1].mv;
+ if ref_mv.matches_fwd(mvi.mvref) {
+ mv_cand[mv_cand_size] = ref_mv.f_mv;
+ mv_cand_size += 1;
+ }
+ }
+ if mv_y > 0 {
+ let ref_mv = &self.blk_info[mv_pos - self.blk_stride].mv;
+ if ref_mv.matches_fwd(mvi.mvref) {
+ mv_cand[mv_cand_size] = ref_mv.f_mv;
+ mv_cand_size += 1;
+ }
+ }
+ if hdr.has_top_block(mv_x << 2, mv_y << 2, mv_w << 2, 0, 4) {
+ let ref_mv = &self.blk_info[mv_pos - self.blk_stride + mv_w].mv;
+ if ref_mv.matches_fwd(mvi.mvref) {
+ mv_cand[mv_cand_size] = ref_mv.f_mv;
+ mv_cand_size += 1;
+ }
+ }
+ f_mv = match mv_cand_size {
+ 1 | 2 => {
+ let x = mv_cand[0].x + mv_cand[1].x + mv_cand[2].x;
+ let y = mv_cand[0].y + mv_cand[1].y + mv_cand[2].y;
+ if mv_cand_size == 1 {
+ MV { x, y }
+ } else {
+ MV { x: x >> 1, y: y >> 1 }
+ }
+ },
+ 3 => MV::pred(mv_cand[0], mv_cand[1], mv_cand[2]),
+ _ => ZERO_MV,
+ };
+ } else {
+ f_mv = ZERO_MV;
+ }
+ if mvi.mvref.is_bwd() {
+ let mut mv_cand: [MV; 3] = [ZERO_MV; 3];
+ let mut mv_cand_size: usize = 0;
+ if mv_x > 0 {
+ let ref_mv = &self.blk_info[mv_pos - 1].mv;
+ if ref_mv.matches_bwd(mvi.mvref) {
+ mv_cand[mv_cand_size] = ref_mv.b_mv;
+ mv_cand_size += 1;
+ }
+ }
+ if mv_y > 0 {
+ let ref_mv = &self.blk_info[mv_pos - self.blk_stride].mv;
+ if ref_mv.matches_bwd(mvi.mvref) {
+ mv_cand[mv_cand_size] = ref_mv.b_mv;
+ mv_cand_size += 1;
+ }
+ }
+ if hdr.has_top_block(mv_x << 2, mv_y << 2, mv_w << 2, 0, 4) {
+ let ref_mv = &self.blk_info[mv_pos - self.blk_stride + mv_w].mv;
+ if ref_mv.matches_bwd(mvi.mvref) {
+ mv_cand[mv_cand_size] = ref_mv.b_mv;
+ mv_cand_size += 1;
+ }
+ }
+ b_mv = match mv_cand_size {
+ 1 | 2 => {
+ let x = mv_cand[0].x + mv_cand[1].x + mv_cand[2].x;
+ let y = mv_cand[0].y + mv_cand[1].y + mv_cand[2].y;
+ if mv_cand_size == 1 {
+ MV { x, y }
+ } else {
+ MV { x: x >> 1, y: y >> 1 }
+ }
+ },
+ 3 => MV::pred(mv_cand[0], mv_cand[1], mv_cand[2]),
+ _ => ZERO_MV,
+ };
+ } else {
+ b_mv = ZERO_MV;
+ }
+
+ MVInfo { f_mv: mvi.f_mv + f_mv, b_mv: mvi.b_mv + b_mv, mvref: mvi.mvref }
+ }
+ fn fill_skip_cand(&mut self, hdr: &FrameHeader, skip_cand: &mut UniqueList<MVInfo>, size: usize) {
+ let mv_size = size >> 2;
+
+ if self.xpos > 0 {
+ let mv = &self.blk_info[self.blk_pos - 1].mv;
+ if mv.is_some() {
+ skip_cand.add(*mv);
+ }
+ }
+ if self.ypos > 0 {
+ let mv = &self.blk_info[self.blk_pos - self.blk_stride].mv;
+ if mv.is_some() {
+ skip_cand.add(*mv);
+ }
+ }
+ if hdr.has_top_right_block(self.xpos, self.ypos, 0, 0, size) {
+ let mv = &self.blk_info[self.blk_pos - self.blk_stride + mv_size].mv;
+ if mv.is_some() {
+ skip_cand.add(*mv);
+ }
+ }
+ if hdr.has_left_down_block(self.xpos, self.ypos, 0, 0, size) {
+ let mv = &self.blk_info[self.blk_pos + self.blk_stride * mv_size - 1].mv;
+ if mv.is_some() {
+ skip_cand.add(*mv);
+ }
+ }
+ if hdr.has_left_block(self.xpos, self.ypos, 0, 0, size) {
+ let mv = &self.blk_info[self.blk_pos + self.blk_stride * (mv_size - 1) - 1].mv;
+ if mv.is_some() {
+ skip_cand.add(*mv);
+ }
+ }
+ if hdr.has_top_block(self.xpos, self.ypos, 0, 0, size) {
+ let mv = &self.blk_info[self.blk_pos - self.blk_stride + mv_size - 1].mv;
+ if mv.is_some() {
+ skip_cand.add(*mv);
+ }
+ }
+ if (self.xpos > 0) && (self.ypos > 0) {
+ let mv = &self.blk_info[self.blk_pos - self.blk_stride - 1].mv;
+ if mv.is_some() {
+ skip_cand.add(*mv);
+ }
+ }
+ for i in skip_cand.fill..4 {
+ skip_cand.list[i] = MVInfo { f_mv: ZERO_MV, b_mv: ZERO_MV, mvref: MVRef::Ref0 };
+ }
+ }
+ fn deblock_cb_tree(&mut self, buf: &mut NAVideoBuffer<u8>, hdr: &FrameHeader, xpos: usize, ypos: usize, log_size: u8) {
+ if (xpos >= hdr.width) || (ypos >= hdr.height) { return; }
+ let split = (log_size > 3) && self.cu_splits.pop().unwrap();
+ if split {
+ let hsize = 1 << (log_size - 1);
+ self.deblock_cb_tree(buf, hdr, xpos, ypos, log_size - 1);
+ self.deblock_cb_tree(buf, hdr, xpos + hsize, ypos, log_size - 1);
+ self.deblock_cb_tree(buf, hdr, xpos, ypos + hsize, log_size - 1);
+ self.deblock_cb_tree(buf, hdr, xpos + hsize, ypos + hsize, log_size - 1);
+ } else {
+ let pu_pos = (xpos >> 3) + (ypos >> 3) * self.pu_stride;
+ let cu_type = self.pu_info[pu_pos].cu_type;
+ let tsize = if self.pu_info[pu_pos].ttype == TransformType::T16X16 { 4 } else { 3 };
+ let ntiles = 1 << (log_size - tsize);
+ let dparams = RV60DeblockParams {
+ deblock_chroma: hdr.deblock_chroma,
+ width: hdr.width,
+ height: hdr.height,
+ dblkstride: self.dblk.stride,
+ };
+ for ty in 0..ntiles {
+ for tx in 0..ntiles {
+ let x = xpos + (tx << tsize);
+ let y = ypos + (ty << tsize);
+ let cb_pos = ((x & 63) >> 3) + ((y & 63) >> 3) * 8;
+ if cu_type == CUType::Intra {
+ self.dblk.set_strength(x, y, 1 << tsize, self.qp, 2);
+ } else if (cu_type != CUType::Skip) && self.coded_blk[cb_pos] {
+ self.dblk.set_strength(x, y, 1 << tsize, self.qp, 1);
+ } else {
+ self.dblk.set_strength(x, y, 1 << tsize, self.qp, 0);
+ self.derive_deblock_strength(x, y, 1 << (tsize - 2));
+ }
+ self.dsp.do_deblock(&dparams, buf, x, y, 1 << tsize,
+ self.dblk.top_str.as_slice(),
+ self.dblk.left_str.as_slice(),
+ self.dblk.get_pos(x, y));
+ }
+ }
+ }
+ }
+ fn derive_deblock_strength(&mut self, xpos: usize, ypos: usize, size4: usize) {
+ let blk_pos = (xpos >> 2) + (ypos >> 2) * self.blk_stride;
+ let mut dblk_pos = self.dblk.get_pos(xpos, ypos);
+ if ypos > 0 {
+ let top_blk_pos = blk_pos - self.blk_stride;
+ for i in 0..size4 {
+ if self.dblk.get_top_strength(dblk_pos + i) == 0 {
+ if self.blk_info[blk_pos + i].mv.is_deblock_cand(&self.blk_info[top_blk_pos + i].mv) {
+ self.dblk.set_top_strength(dblk_pos + i, 1);
+ }
+ }
+ }
+ }
+ if xpos > 0 {
+ for i in 0..size4 {
+ if self.dblk.get_left_strength(dblk_pos) == 0 {
+ if self.blk_info[blk_pos + i].mv.is_deblock_cand(&self.blk_info[blk_pos + i - 1].mv) {
+ self.dblk.set_left_strength(dblk_pos, 1);
+ }
+ }
+ dblk_pos += self.dblk.stride;
+ }
+ }
+ }
+}
+
+impl NADecoder for RealVideo60Decoder {
+ fn init(&mut self, info: Rc<NACodecInfo>) -> DecoderResult<()> {
+ if let NACodecTypeInfo::Video(_vinfo) = info.get_properties() {
+ let fmt = YUV420_FORMAT;
+ let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, fmt));
+ self.info = Rc::new(NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()));
+
+ let edata = info.get_extradata().unwrap();
+ let src: &[u8] = &edata;
+
+ if src.len() < 8 { return Err(DecoderError::InvalidData); }
+ let mut mr = MemoryReader::new_read(src);
+ let mut br = ByteReader::new(&mut mr);
+ let _flags = br.read_u32be()?;
+ let version = br.read_u32be()?;
+ let _unk = br.read_u16be()?;
+ validate!((version >> 28) == 4);
+ // then width and height again as 16be
+
+ //self.bd.width = vinfo.get_width();
+ //self.bd.height = vinfo.get_height();
+ //self.frmmgr.clear();
+ Ok(())
+ } else {
+println!("???");
+ Err(DecoderError::InvalidData)
+ }
+ }
+ fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
+ let src = pkt.get_buffer();
+
+ validate!(src.len() > 9);
+ let hsize = (src[0] as usize) * 8 + 9;
+ let mut br = BitReader::new(&src[hsize..], src.len() - hsize, BitReaderMode::BE);
+ let hdr = FrameHeader::read(&mut br)?;
+ let mut slices: Vec<usize> = Vec::new();
+ hdr.parse_slice_sizes(&mut br, &mut slices)?;
+
+ let tmp_vinfo = NAVideoInfo::new(hdr.width, hdr.height, false, YUV420_FORMAT);
+ let res = alloc_video_buffer(tmp_vinfo, 6);
+ if !res.is_ok() { return Err(DecoderError::InvalidData); }
+ let mut bufinfo = res.unwrap();
+ let mut buf = bufinfo.get_vbuf().unwrap();
+
+ let cu_w = hdr.get_width_cu();
+ let cu_h = hdr.get_height_cu();
+ self.pu_stride = cu_w << 3;
+ self.pu_info.resize(self.pu_stride * (cu_h << 3), PUInfo::default());
+ self.blk_stride = cu_w << 4;
+ self.blk_info.truncate(0);
+ self.blk_info.resize(self.blk_stride * (cu_h << 4), BlockInfo::default());
+ if hdr.deblock {
+ self.dblk.reinit(hdr.width, hdr.height);
+ }
+ let mut off = hsize + ((br.tell() >> 3) as usize);
+ for (cu_y, size) in slices.into_iter().enumerate() {
+ self.decode_cu_line(&mut buf, &hdr, &src[off..][..size], cu_y)?;
+ off += size;
+ }
+ if (hdr.ftype == FrameType::I) || (hdr.ftype == FrameType::P) {
+ self.ipbs.add_frame(buf);
+ }
+
+ let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo);
+ frm.set_keyframe(hdr.ftype == FrameType::I);
+ frm.set_pts(Some(hdr.ts as u64));
+ frm.set_frame_type(hdr.ftype);
+ Ok(Rc::new(RefCell::new(frm)))
+ }
+}
+
+pub fn get_decoder() -> Box<NADecoder> {
+ Box::new(RealVideo60Decoder::new())
+}
+
+#[cfg(test)]
+mod test {
+ use test::dec_video::test_file_decoding;
+ #[test]
+ fn test_rv60() {
+ test_file_decoding("realmedia", "assets/RV/RV60.rmhd", Some(4000), true, false, /*None*/Some("rv60"));
+panic!("end");
+ }
+}
projects / nihav.git / blobdiff