2 use std::ops::{Add, Sub};
3 use super::DecoderResult;
4 use frame::NAVideoBuffer;
10 #[cfg(feature="decoder_intel263")]
12 #[cfg(feature="decoder_realvideo1")]
14 #[cfg(feature="decoder_realvideo2")]
17 pub trait BlockDecoder {
18 fn decode_pichdr(&mut self) -> DecoderResult<PicInfo>;
19 fn decode_slice_header(&mut self, pinfo: &PicInfo) -> DecoderResult<SliceInfo>;
20 fn decode_block_header(&mut self, pinfo: &PicInfo, sinfo: &SliceInfo, sstate: &SliceState) -> DecoderResult<BlockInfo>;
21 fn decode_block_intra(&mut self, info: &BlockInfo, sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()>;
22 fn decode_block_inter(&mut self, info: &BlockInfo, sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()>;
23 fn is_slice_end(&mut self) -> bool;
27 fn idct(&self, blk: &mut [i16; 64]);
28 fn copy_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: &NAVideoBuffer<u8>, xpos: usize, ypos: usize, w: usize, h: usize, mv: MV);
29 fn avg_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: &NAVideoBuffer<u8>, xpos: usize, ypos: usize, w: usize, h: usize, mv: MV);
30 fn filter_row(&self, buf: &mut NAVideoBuffer<u8>, mb_y: usize, mb_w: usize, cbpi: &CBPInfo);
34 #[derive(Debug,Clone,Copy,PartialEq)]
36 I, P, PB, Skip, B, Special
40 pub fn is_ref(&self) -> bool {
42 Type::I | Type::P | Type::PB => true,
49 #[derive(Debug,Clone,Copy)]
56 pub fn new(trb: u8, dbquant: u8) -> Self {
57 PBInfo{ trb: trb, dbquant: dbquant }
59 pub fn get_trb(&self) -> u8 { self.trb }
60 pub fn get_dbquant(&self) -> u8 { self.dbquant }
64 #[derive(Debug,Clone,Copy)]
73 pub pb: Option<PBInfo>,
75 pub plusinfo: Option<PlusInfo>,
80 pub fn new(w: usize, h: usize, mode: Type, mvmode: MVMode, umv: bool, apm: bool, quant: u8, ts: u16, pb: Option<PBInfo>, plusinfo: Option<PlusInfo>) -> Self {
82 w: w, h: h, mode: mode, mvmode: mvmode,
83 umv: umv, apm: apm, quant: quant,
84 pb: pb, ts: ts, plusinfo: plusinfo
87 pub fn get_width(&self) -> usize { self.w }
88 pub fn get_height(&self) -> usize { self.h }
89 pub fn get_mode(&self) -> Type { self.mode }
90 pub fn get_quant(&self) -> u8 { self.quant }
91 pub fn get_apm(&self) -> bool { self.apm }
92 pub fn is_pb(&self) -> bool { self.pb.is_some() }
93 pub fn get_ts(&self) -> u16 { self.ts }
94 pub fn get_pbinfo(&self) -> PBInfo { self.pb.unwrap() }
95 pub fn get_plusifo(&self) -> Option<PlusInfo> { self.plusinfo }
96 pub fn get_mvmode(&self) -> MVMode { self.mvmode }
100 #[derive(Debug,Clone,Copy)]
101 pub struct PlusInfo {
109 pub fn new(aic: bool, deblock: bool, aiv_mode: bool, mq_mode: bool) -> Self {
110 PlusInfo { aic: aic, deblock: deblock, aiv_mode: aiv_mode, mq_mode: mq_mode }
115 #[derive(Debug,Clone,Copy)]
116 pub struct SliceInfo {
124 #[derive(Debug,Clone,Copy)]
125 pub struct SliceState {
129 pub first_line: bool,
131 pub slice_mb_x: usize,
132 pub slice_mb_y: usize,
135 const SLICE_NO_END: usize = 99999999;
138 pub fn new(mb_x: usize, mb_y: usize, mb_end: usize, quant: u8) -> Self {
139 SliceInfo{ mb_x: mb_x, mb_y: mb_y, mb_end: mb_end, quant: quant }
141 pub fn new_gob(mb_x: usize, mb_y: usize, quant: u8) -> Self {
142 SliceInfo{ mb_x: mb_x, mb_y: mb_y, mb_end: SLICE_NO_END, quant: quant }
144 pub fn get_default_slice(pinfo: &PicInfo) -> Self {
145 SliceInfo{ mb_x: 0, mb_y: 0, mb_end: SLICE_NO_END, quant: pinfo.get_quant() }
147 pub fn get_quant(&self) -> u8 { self.quant }
148 pub fn is_at_end(&self, mb_pos: usize) -> bool { self.mb_end == mb_pos }
149 pub fn needs_check(&self) -> bool { self.mb_end == SLICE_NO_END }
153 pub fn new(is_iframe: bool) -> Self {
155 is_iframe: is_iframe, mb_x: 0, mb_y: 0, first_line: true, first_mb: true,
156 slice_mb_x: 0, slice_mb_y: 0
159 pub fn next_mb(&mut self) {
160 self.mb_x += 1; self.first_mb = false;
161 if self.mb_x >= self.slice_mb_x && self.mb_y > self.slice_mb_y {
162 self.first_line = false;
165 pub fn new_row(&mut self) {
166 self.mb_x = 0; self.mb_y += 1;
167 if self.mb_x >= self.slice_mb_x && self.mb_y > self.slice_mb_y {
168 self.first_line = false;
170 self.first_mb = true;
172 pub fn reset_slice(&mut self, smb_x: usize, smb_y: usize) {
173 self.slice_mb_x = smb_x;
174 self.slice_mb_y = smb_y;
175 self.first_line = true;
176 self.first_mb = true;
180 #[derive(Debug,Clone,Copy)]
181 pub struct BlockInfo {
194 pub acpred: ACPredMode,
198 #[derive(Debug,Clone,Copy)]
199 pub struct BBlockInfo {
206 #[allow(non_camel_case_types)]
207 #[derive(Debug,Clone,Copy)]
208 pub enum BlockMVInfo {
215 #[derive(Debug,Clone,Copy,PartialEq)]
216 pub enum ACPredMode {
225 pub fn new(mode: Type, cbp: u8, q: u8) -> Self {
227 intra: mode == Type::I,
228 skip: (cbp == 0) && (mode != Type::I),
232 mv: [MV::new(0, 0), MV::new(0, 0), MV::new(0, 0), MV::new(0, 0)],
236 mv2: [ZERO_MV, ZERO_MV],
239 acpred: ACPredMode::None,
242 pub fn is_intra(&self) -> bool { self.intra }
243 pub fn is_skipped(&self) -> bool { self.skip }
244 pub fn get_mode(&self) -> Type { self.mode }
245 pub fn get_cbp(&self) -> u8 { self.cbp }
246 pub fn get_q(&self) -> u8 { self.q }
247 pub fn get_num_mvs(&self) -> usize { self.num_mv }
248 pub fn get_mv(&self, idx: usize) -> MV { self.mv[idx] }
249 pub fn has_b_part(&self) -> bool { self.bpart }
250 pub fn get_cbp_b(&self) -> u8 { self.b_cbp }
251 pub fn get_num_mvs2(&self) -> usize { self.num_mv2 }
252 pub fn get_mv2(&self, idx: usize) -> MV { self.mv2[idx] }
253 pub fn set_mv(&mut self, mvs: &[MV]) {
254 if mvs.len() > 0 { self.skip = false; }
255 let mut mv_arr: [MV; 4] = [MV::new(0, 0), MV::new(0, 0), MV::new(0, 0), MV::new(0, 0)];
256 for i in 0..mvs.len() { mv_arr[i] = mvs[i]; }
258 self.num_mv = mvs.len();
260 pub fn set_bpart(&mut self, bbinfo: BBlockInfo) {
261 self.bpart = bbinfo.present;
262 self.b_cbp = bbinfo.cbp;
263 self.fwd = bbinfo.fwd;
264 self.num_mv2 = bbinfo.get_num_mv();
266 pub fn set_b_mv(&mut self, mvs: &[MV]) {
267 if mvs.len() > 0 { self.skip = false; }
268 let mut mv_arr: [MV; 2] = [ZERO_MV, ZERO_MV];
269 for i in 0..mvs.len() { mv_arr[i] = mvs[i]; }
272 pub fn is_b_fwd(&self) -> bool { self.fwd }
273 pub fn set_acpred(&mut self, acpred: ACPredMode) { self.acpred = acpred }
274 pub fn get_acpred(&self) -> ACPredMode { self.acpred }
278 pub fn new(present: bool, cbp: u8, num_mv: usize, fwd: bool) -> Self {
286 pub fn get_num_mv(&self) -> usize { self.num_mv }
289 #[derive(Debug,Clone,Copy)]
296 #[derive(Debug,Clone,Copy)]
303 pub fn new(x: i16, y: i16) -> Self { MV{ x: x, y: y } }
304 pub fn pred(a: MV, b: MV, c: MV) -> Self {
310 if a.x < c.x { x = c.x; } else { x = a.x; }
314 if a.x < c.x { x = a.x; } else { x = c.x; }
324 if a.y < c.y { y = c.y; } else { y = a.y; }
328 if a.y < c.y { y = a.y; } else { y = c.y; }
335 fn add_umv(pred_mv: MV, add: MV, mvmode: MVMode) -> Self {
336 let mut new_mv = pred_mv + add;
339 if new_mv.x >= 64 { new_mv.x -= 64; }
340 else if new_mv.x <= -64 { new_mv.x += 64; }
341 if new_mv.y >= 64 { new_mv.y -= 64; }
342 else if new_mv.y <= -64 { new_mv.y += 64; }
345 if new_mv.x > 31 { new_mv.x -= 64; }
346 else if new_mv.x < -32 { new_mv.x += 64; }
347 if new_mv.y > 31 { new_mv.y -= 64; }
348 else if new_mv.y < -32 { new_mv.y += 64; }
351 if pred_mv.x > 32 && new_mv.x > 63 { new_mv.x -= 64; }
352 if pred_mv.x < -31 && new_mv.x < -63 { new_mv.x += 64; }
353 if pred_mv.y > 32 && new_mv.y > 63 { new_mv.y -= 64; }
354 if pred_mv.y < -31 && new_mv.y < -63 { new_mv.y += 64; }
359 fn scale(&self, trb: u16, trd: u16) -> Self {
360 if (trd == 0) || (trb == 0) {
363 MV { x: (((self.x as i32) * (trb as i32)) / (trd as i32)) as i16, y: (((self.y as i32) * (trb as i32)) / (trd as i32)) as i16 }
366 fn b_sub(pvec: MV, fwdvec: MV, bvec: MV, trb: u16, trd: u16) -> Self {
367 let bscale = (trb as i32) - (trd as i32);
368 let x = if bvec.x != 0 { fwdvec.x - pvec.x } else if trd != 0 { (bscale * (pvec.x as i32) / (trd as i32)) as i16 } else { 0 };
369 let y = if bvec.y != 0 { fwdvec.y - pvec.y } else if trd != 0 { (bscale * (pvec.y as i32) / (trd as i32)) as i16 } else { 0 };
374 pub const ZERO_MV: MV = MV { x: 0, y: 0 };
378 fn add(self, other: MV) -> MV { MV { x: self.x + other.x, y: self.y + other.y } }
383 fn sub(self, other: MV) -> MV { MV { x: self.x - other.x, y: self.y - other.y } }
386 impl fmt::Display for MV {
387 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
388 write!(f, "{},{}", self.x, self.y)
400 fn new() -> Self { CBPInfo{ cbp: Vec::new(), q: Vec::new(), mb_w: 0 } }
401 fn reset(&mut self, mb_w: usize) {
403 self.cbp.truncate(0);
404 self.cbp.resize(self.mb_w * 2, 0);
406 self.q.resize(self.mb_w * 2, 0);
408 fn update_row(&mut self) {
409 for i in 0..self.mb_w {
410 self.cbp[i] = self.cbp[self.mb_w + i];
411 self.q[i] = self.q[self.mb_w + i];
414 fn set_cbp(&mut self, mb_x: usize, cbp: u8) {
415 self.cbp[self.mb_w + mb_x] = cbp;
417 fn set_q(&mut self, mb_x: usize, q: u8) {
418 self.q[self.mb_w + mb_x] = q;
420 pub fn get_q(&self, mb_x: usize) -> u8 { self.q[mb_x] }
421 pub fn is_coded(&self, mb_x: usize, blk_no: usize) -> bool {
422 (self.cbp[self.mb_w + mb_x] & (1 << (5 - blk_no))) != 0
424 pub fn is_coded_top(&self, mb_x: usize, blk_no: usize) -> bool {
425 let cbp = self.cbp[self.mb_w + mb_x];
426 let cbp_top = self.cbp[mb_x];
428 0 => { (cbp_top & 0b001000) != 0 },
429 1 => { (cbp_top & 0b000100) != 0 },
430 2 => { (cbp & 0b100000) != 0 },
431 3 => { (cbp & 0b010000) != 0 },
432 4 => { (cbp_top & 0b000010) != 0 },
433 _ => { (cbp_top & 0b000001) != 0 },