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Commit | Line | Data |
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1 | /* | |
2 | known bugs and limitations: | |
3 | * weighted motion compensation is not implemented | |
4 | * wrong slice boundary filtering | |
5 | * not fully correct deblock strength selection for P/B-macroblocks | |
6 | * scaling lists for 4x4 blocks | |
7 | */ | |
8 | use nihav_core::codecs::*; | |
9 | use nihav_core::io::byteio::*; | |
10 | use nihav_core::io::bitreader::*; | |
11 | use nihav_core::io::intcode::*; | |
12 | use nihav_codec_support::codecs::{MV, ZERO_MV}; | |
13 | ||
14 | mod types; | |
15 | pub use types::*; | |
16 | mod pic_ref; | |
17 | pub use pic_ref::*; | |
18 | #[allow(clippy::identity_op)] | |
19 | #[allow(clippy::erasing_op)] | |
20 | #[allow(clippy::many_single_char_names)] | |
21 | #[allow(clippy::range_plus_one)] | |
22 | mod dsp; | |
23 | use dsp::*; | |
24 | mod cabac; | |
25 | use cabac::*; | |
26 | mod cabac_coder; | |
27 | use cabac_coder::*; | |
28 | mod cavlc; | |
29 | use cavlc::*; | |
30 | mod loopfilter; | |
31 | use loopfilter::*; | |
32 | mod sets; | |
33 | use sets::*; | |
34 | mod slice; | |
35 | use slice::*; | |
36 | ||
37 | trait ReadUE { | |
38 | fn read_ue(&mut self) -> DecoderResult<u32>; | |
39 | fn read_te(&mut self, range: u32) -> DecoderResult<u32>; | |
40 | fn read_ue_lim(&mut self, max_val: u32) -> DecoderResult<u32> { | |
41 | let val = self.read_ue()?; | |
42 | validate!(val <= max_val); | |
43 | Ok(val) | |
44 | } | |
45 | fn read_se(&mut self) -> DecoderResult<i32> { | |
46 | let val = self.read_ue()?; | |
47 | if (val & 1) != 0 { | |
48 | Ok (((val >> 1) as i32) + 1) | |
49 | } else { | |
50 | Ok (-((val >> 1) as i32)) | |
51 | } | |
52 | } | |
53 | } | |
54 | ||
55 | impl<'a> ReadUE for BitReader<'a> { | |
56 | fn read_ue(&mut self) -> DecoderResult<u32> { | |
57 | Ok(self.read_code(UintCodeType::GammaP)? - 1) | |
58 | } | |
59 | fn read_te(&mut self, range: u32) -> DecoderResult<u32> { | |
60 | if range == 1 { | |
61 | if self.read_bool()? { | |
62 | Ok(0) | |
63 | } else { | |
64 | Ok(1) | |
65 | } | |
66 | } else { | |
67 | let val = self.read_ue()?; | |
68 | validate!(val <= range); | |
69 | Ok(val) | |
70 | } | |
71 | } | |
72 | } | |
73 | ||
74 | #[derive(Clone,Copy)] | |
75 | pub struct Coeff8x8 { | |
76 | pub coeffs: [i16; 64], | |
77 | } | |
78 | ||
79 | impl Coeff8x8 { | |
80 | fn clear(&mut self) { | |
81 | self.coeffs = [0; 64]; | |
82 | } | |
83 | } | |
84 | ||
85 | impl Default for Coeff8x8 { | |
86 | fn default() -> Self { | |
87 | Self { | |
88 | coeffs: [0; 64], | |
89 | } | |
90 | } | |
91 | } | |
92 | ||
93 | #[derive(Clone,Copy,Default)] | |
94 | pub struct CurrentMBInfo { | |
95 | pub mb_type: MBType, | |
96 | pub sub_mb_type: [SubMBType; 4], | |
97 | pub ipred: [IntraPredMode; 16], | |
98 | pub chroma_ipred: u8, | |
99 | pub luma_ipred: [u8; 16], | |
100 | pub mv_l0: [MV; 16], | |
101 | pub ref_l0: [PicRef; 4], | |
102 | pub mv_l1: [MV; 16], | |
103 | pub ref_l1: [PicRef; 4], | |
104 | pub qp_y: u8, | |
105 | pub cbpy: u8, | |
106 | pub cbpc: u8, | |
107 | pub coeffs: [[i16; 16]; 25], | |
108 | pub coeffs8x8: [Coeff8x8; 4], | |
109 | pub chroma_dc: [[i16; 4]; 2], | |
110 | pub coded: [bool; 25], | |
111 | pub transform_size_8x8: bool, | |
112 | } | |
113 | ||
114 | impl CurrentMBInfo { | |
115 | fn clear_coeffs8x8(&mut self) { | |
116 | for c in self.coeffs8x8.iter_mut() { | |
117 | c.clear(); | |
118 | } | |
119 | } | |
120 | fn can_have_8x8_tx(&self, inference_flag: bool) -> bool { | |
121 | match self.mb_type { | |
122 | MBType::Intra4x4 | MBType::Intra8x8 | MBType::Intra16x16(_, _, _) | MBType::PCM => false, | |
123 | MBType::P8x8 | MBType::P8x8Ref0 | MBType::B8x8 => { | |
124 | for &sub_id in self.sub_mb_type.iter() { | |
125 | match sub_id { | |
126 | SubMBType::P8x8 | | |
127 | SubMBType::B8x8(_) | |
128 | => {}, | |
129 | SubMBType::Direct8x8 | |
130 | => if !inference_flag { return false; }, | |
131 | _ => return false, | |
132 | }; | |
133 | } | |
134 | true | |
135 | }, | |
136 | MBType::Direct => inference_flag, | |
137 | _ => true, | |
138 | } | |
139 | } | |
140 | } | |
141 | ||
142 | fn get_long_term_id(is_idr: bool, slice_hdr: &SliceHeader) -> Option<usize> { | |
143 | if is_idr && !slice_hdr.long_term_reference { | |
144 | None | |
145 | } else { | |
146 | let marking = &slice_hdr.adaptive_ref_pic_marking; | |
147 | for (&op, &arg) in marking.memory_management_control_op.iter().zip(marking.operation_arg.iter()).take(marking.num_ops) { | |
148 | if op == 6 { | |
149 | return Some(arg as usize); | |
150 | } | |
151 | } | |
152 | None | |
153 | } | |
154 | } | |
155 | ||
156 | struct H264Decoder { | |
157 | info: NACodecInfoRef, | |
158 | width: usize, | |
159 | height: usize, | |
160 | num_mbs: usize, | |
161 | nal_len: u8, | |
162 | sps: Vec<SeqParameterSet>, | |
163 | cur_sps: usize, | |
164 | pps: Vec<PicParameterSet>, | |
165 | cur_pps: usize, | |
166 | ||
167 | skip_mode: FrameSkipMode, | |
168 | deblock_skip: bool, | |
169 | ||
170 | is_mbaff: bool, | |
171 | ||
172 | cavlc_cb: CAVLCTables, | |
173 | ||
174 | sstate: SliceState, | |
175 | ||
176 | cur_pic: Option<PictureInfo>, | |
177 | cur_id: u16, | |
178 | has_pic: bool, | |
179 | frame_refs: FrameRefs, | |
180 | ||
181 | temporal_mv: bool, | |
182 | deblock_mode: u8, | |
183 | lf_alpha: i8, | |
184 | lf_beta: i8, | |
185 | is_s: bool, | |
186 | ||
187 | ipcm_buf: [u8; 256 + 64 + 64], | |
188 | ||
189 | avg_buf: NAVideoBufferRef<u8>, | |
190 | ||
191 | transform_8x8_mode: bool, | |
192 | } | |
193 | ||
194 | fn unescape_nal(src: &[u8], dst: &mut Vec<u8>) -> usize { | |
195 | let mut off = 0; | |
196 | let mut zrun = 0; | |
197 | dst.clear(); | |
198 | dst.reserve(src.len()); | |
199 | while off < src.len() { | |
200 | dst.push(src[off]); | |
201 | if src[off] != 0 { | |
202 | zrun = 0; | |
203 | } else { | |
204 | zrun += 1; | |
205 | if zrun == 2 && off + 1 < src.len() && src[off + 1] == 0x03 { | |
206 | zrun = 0; | |
207 | off += 1; | |
208 | } | |
209 | if zrun >= 3 && off + 1 < src.len() && src[off + 1] == 0x01 { | |
210 | off -= 3; | |
211 | dst.truncate(off); | |
212 | break; | |
213 | } | |
214 | } | |
215 | off += 1; | |
216 | } | |
217 | off | |
218 | } | |
219 | ||
220 | impl H264Decoder { | |
221 | fn new() -> Self { | |
222 | let avg_vi = NAVideoInfo { width: 32, height: 32, flipped: false, format: YUV420_FORMAT, bits: 12 }; | |
223 | let avg_buf = alloc_video_buffer(avg_vi, 4).unwrap().get_vbuf().unwrap(); | |
224 | H264Decoder{ | |
225 | info: NACodecInfoRef::default(), | |
226 | width: 0, | |
227 | height: 0, | |
228 | num_mbs: 0, | |
229 | nal_len: 0, | |
230 | sps: Vec::with_capacity(1), | |
231 | cur_sps: 0, | |
232 | pps: Vec::with_capacity(3), | |
233 | cur_pps: 0, | |
234 | ||
235 | skip_mode: FrameSkipMode::default(), | |
236 | deblock_skip: false, | |
237 | ||
238 | is_mbaff: false, | |
239 | ||
240 | cavlc_cb: CAVLCTables::new(), | |
241 | ||
242 | sstate: SliceState::new(), | |
243 | cur_pic: None, | |
244 | cur_id: 0, | |
245 | has_pic: false, | |
246 | frame_refs: FrameRefs::new(), | |
247 | ||
248 | temporal_mv: false, | |
249 | deblock_mode: 0, | |
250 | lf_alpha: 0, | |
251 | lf_beta: 0, | |
252 | is_s: false, | |
253 | ||
254 | ipcm_buf: [0; 256 + 64 + 64], | |
255 | ||
256 | avg_buf, | |
257 | ||
258 | transform_8x8_mode: false, | |
259 | } | |
260 | } | |
261 | fn handle_nal(&mut self, src: &[u8], supp: &mut NADecoderSupport, skip_decoding: bool) -> DecoderResult<()> { | |
262 | validate!(!src.is_empty()); | |
263 | validate!((src[0] & 0x80) == 0); | |
264 | let nal_ref_idc = src[0] >> 5; | |
265 | let nal_unit_type = src[0] & 0x1F; | |
266 | ||
267 | let mut full_size = src.len() * 8; | |
268 | for &byte in src.iter().rev() { | |
269 | if byte == 0 { | |
270 | full_size -= 8; | |
271 | } else { | |
272 | full_size -= (byte.trailing_zeros() + 1) as usize; | |
273 | break; | |
274 | } | |
275 | } | |
276 | validate!(full_size > 0); | |
277 | match nal_unit_type { | |
278 | 1 | 5 if !skip_decoding => { | |
279 | let is_idr = nal_unit_type == 5; | |
280 | let mut br = BitReader::new(&src[..(full_size + 7)/8], BitReaderMode::BE); | |
281 | br.skip(8)?; | |
282 | ||
283 | let slice_hdr = parse_slice_header(&mut br, &self.sps, &self.pps, is_idr, nal_ref_idc)?; | |
284 | validate!(br.tell() < full_size); | |
285 | let full_id; | |
286 | if slice_hdr.first_mb_in_slice == 0 { | |
287 | validate!(self.cur_pic.is_none()); | |
288 | for (i, pps) in self.pps.iter().enumerate() { | |
289 | if pps.pic_parameter_set_id == slice_hdr.pic_parameter_set_id { | |
290 | self.cur_pps = i; | |
291 | break; | |
292 | } | |
293 | } | |
294 | for (i, sps) in self.sps.iter().enumerate() { | |
295 | if sps.seq_parameter_set_id == self.pps[self.cur_pps].seq_parameter_set_id { | |
296 | self.cur_sps = i; | |
297 | break; | |
298 | } | |
299 | } | |
300 | ||
301 | full_id = self.frame_refs.calc_picture_num(&slice_hdr, is_idr, nal_ref_idc, &self.sps[self.cur_sps]); | |
302 | ||
303 | let sps = &self.sps[self.cur_sps]; | |
304 | if sps.chroma_format_idc != 1 || sps.bit_depth_luma != 8 || sps.bit_depth_chroma != 8 { | |
305 | println!(" chroma fmt {} bits {}/{}", sps.chroma_format_idc, sps.bit_depth_luma, sps.bit_depth_chroma); | |
306 | return Err(DecoderError::NotImplemented); | |
307 | } | |
308 | //let pps = &self.pps[self.cur_pps]; | |
309 | ||
310 | if is_idr { | |
311 | self.frame_refs.clear_refs(); | |
312 | } | |
313 | ||
314 | self.width = sps.pic_width_in_mbs << 4; | |
315 | self.height = sps.pic_height_in_mbs << 4; | |
316 | self.num_mbs = sps.pic_width_in_mbs * sps.pic_height_in_mbs; | |
317 | ||
318 | self.is_mbaff = sps.mb_adaptive_frame_field && !slice_hdr.field_pic; | |
319 | if self.is_mbaff { | |
320 | println!("MBAFF"); | |
321 | return Err(DecoderError::NotImplemented); | |
322 | } | |
323 | if !sps.frame_mbs_only { | |
324 | println!("PAFF?"); | |
325 | return Err(DecoderError::NotImplemented); | |
326 | } | |
327 | ||
328 | //if slice_hdr.slice_type.is_b() { return Ok(()); } | |
329 | self.cur_id = full_id as u16; | |
330 | } else { | |
331 | if let Some(ref mut pic) = self.cur_pic { | |
332 | validate!(pic.cur_mb == slice_hdr.first_mb_in_slice); | |
333 | let new_type = slice_hdr.slice_type.to_frame_type(); | |
334 | pic.pic_type = match (pic.pic_type, new_type) { | |
335 | (FrameType::I, _) => new_type, | |
336 | (_, FrameType::B) => FrameType::B, | |
337 | _ => pic.pic_type, | |
338 | }; | |
339 | full_id = pic.full_id; | |
340 | } else { | |
341 | return Ok(());//Err(DecoderError::InvalidData); | |
342 | } | |
343 | validate!(self.cur_pps < self.pps.len() && self.pps[self.cur_pps].pic_parameter_set_id == slice_hdr.pic_parameter_set_id); | |
344 | } | |
345 | ||
346 | let sps = &self.sps[self.cur_sps]; | |
347 | let pps = &self.pps[self.cur_pps]; | |
348 | ||
349 | self.temporal_mv = !slice_hdr.direct_spatial_mv_pred; | |
350 | self.is_s = slice_hdr.slice_type == SliceType::SI || slice_hdr.slice_type == SliceType::SP; | |
351 | self.deblock_mode = slice_hdr.disable_deblocking_filter_idc; | |
352 | self.lf_alpha = slice_hdr.slice_alpha_c0_offset; | |
353 | self.lf_beta = slice_hdr.slice_beta_offset; | |
354 | ||
355 | self.frame_refs.select_refs(sps, &slice_hdr, full_id); | |
356 | ||
357 | if slice_hdr.adaptive_ref_pic_marking_mode { | |
358 | self.frame_refs.apply_adaptive_marking(&slice_hdr.adaptive_ref_pic_marking, slice_hdr.frame_num, 1 << self.sps[self.cur_sps].log2_max_frame_num)?; | |
359 | } | |
360 | if slice_hdr.first_mb_in_slice == 0 { | |
361 | let ret = supp.pool_u8.get_free(); | |
362 | if ret.is_none() { | |
363 | return Err(DecoderError::AllocError); | |
364 | } | |
365 | let tmp_vinfo = NAVideoInfo::new(self.width, self.height, false, YUV420_FORMAT); | |
366 | let mut buf = ret.unwrap(); | |
367 | if buf.get_info() != tmp_vinfo { | |
368 | supp.pool_u8.reset(); | |
369 | supp.pool_u8.prealloc_video(tmp_vinfo, 4)?; | |
370 | let ret = supp.pool_u8.get_free(); | |
371 | if ret.is_none() { | |
372 | return Err(DecoderError::AllocError); | |
373 | } | |
374 | buf = ret.unwrap(); | |
375 | } | |
376 | self.cur_pic = Some(PictureInfo { | |
377 | id: slice_hdr.frame_num, | |
378 | full_id, | |
379 | pic_type: slice_hdr.slice_type.to_frame_type(), | |
380 | buf, | |
381 | cur_mb: 0, | |
382 | is_ref: nal_ref_idc != 0, | |
383 | long_term: get_long_term_id(is_idr, &slice_hdr), | |
384 | mv_info: FrameMV::new(sps.pic_width_in_mbs, sps.pic_height_in_mbs), | |
385 | }); | |
386 | } | |
387 | ||
388 | self.transform_8x8_mode = pps.transform_8x8_mode; | |
389 | ||
390 | self.sstate.reset(sps.pic_width_in_mbs, sps.pic_height_in_mbs, slice_hdr.first_mb_in_slice); | |
391 | if !pps.entropy_coding_mode { | |
392 | self.has_pic = self.decode_slice_cavlc(&mut br, &slice_hdr, full_size)?; | |
393 | } else { | |
394 | br.align(); | |
395 | let start = (br.tell() / 8) as usize; | |
396 | let csrc = &src[start..]; | |
397 | validate!(csrc.len() >= 2); | |
398 | let mut cabac = CABAC::new(csrc, slice_hdr.slice_type, slice_hdr.slice_qp, slice_hdr.cabac_init_idc as usize)?; | |
399 | self.has_pic = self.decode_slice_cabac(&mut cabac, &slice_hdr)?; | |
400 | } | |
401 | }, | |
402 | 2 => { // slice data partition A | |
403 | //slice header | |
404 | //slice id = read_ue() | |
405 | //cat 2 slice data (all but MB layer residual) | |
406 | return Err(DecoderError::NotImplemented); | |
407 | }, | |
408 | 3 => { // slice data partition B | |
409 | //slice id = read_ue() | |
410 | //if pps.redundant_pic_cnt_present { redundant_pic_cnt = read_ue() } | |
411 | //cat 3 slice data (MB layer residual) | |
412 | return Err(DecoderError::NotImplemented); | |
413 | }, | |
414 | 4 => { // slice data partition C | |
415 | //slice id = read_ue() | |
416 | //if pps.redundant_pic_cnt_present { redundant_pic_cnt = read_ue() } | |
417 | //cat 4 slice data (MB layer residual) | |
418 | return Err(DecoderError::NotImplemented); | |
419 | }, | |
420 | 6 => {}, //SEI | |
421 | 7 => { | |
422 | let sps = parse_sps(&src[1..])?; | |
423 | self.sps.push(sps); | |
424 | }, | |
425 | 8 => { | |
426 | validate!(full_size >= 8 + 16); | |
427 | let pps = parse_pps(&src[1..], &self.sps, full_size - 8)?; | |
428 | let mut found = false; | |
429 | for stored_pps in self.pps.iter_mut() { | |
430 | if stored_pps.pic_parameter_set_id == pps.pic_parameter_set_id { | |
431 | *stored_pps = pps.clone(); | |
432 | found = true; | |
433 | break; | |
434 | } | |
435 | } | |
436 | if !found { | |
437 | self.pps.push(pps); | |
438 | } | |
439 | }, | |
440 | 9 => { // access unit delimiter | |
441 | }, | |
442 | 10 => {}, //end of sequence | |
443 | 11 => {}, //end of stream | |
444 | 12 => {}, //filler | |
445 | _ => {}, | |
446 | }; | |
447 | ||
448 | Ok(()) | |
449 | } | |
450 | fn pred_intra(frm: &mut NASimpleVideoFrame<u8>, sstate: &SliceState, mb_info: &CurrentMBInfo) { | |
451 | let yoff = frm.offset[0] + sstate.mb_x * 16 + sstate.mb_y * 16 * frm.stride[0]; | |
452 | match mb_info.mb_type { | |
453 | MBType::Intra16x16(imode, _, _) => { | |
454 | let id = if imode != 2 || (sstate.has_top && sstate.has_left) { | |
455 | imode as usize | |
456 | } else if !sstate.has_top && !sstate.has_left { | |
457 | IPRED8_DC128 | |
458 | } else if !sstate.has_left { | |
459 | IPRED8_DC_TOP | |
460 | } else { | |
461 | IPRED8_DC_LEFT | |
462 | }; | |
463 | IPRED_FUNCS16X16[id](&mut frm.data[yoff..], frm.stride[0], &sstate.top_line_y[sstate.mb_x * 16..], &sstate.left_y); | |
464 | }, | |
465 | MBType::Intra8x8 => { | |
466 | let mut ictx = IPred8Context::new(); | |
467 | for part in 0..4 { | |
468 | let x = (part & 1) * 2; | |
469 | let y = part & 2; | |
470 | let blk4 = x + y * 4; | |
471 | ||
472 | let cur_yoff = yoff + x * 4 + y * 4 * frm.stride[0]; | |
473 | let has_top = y > 0 || sstate.has_top; | |
474 | let has_left = x > 0 || sstate.has_left; | |
475 | let imode = mb_info.ipred[blk4]; | |
476 | let id = if imode != IntraPredMode::DC || (has_top && has_left) { | |
477 | let im_id: u8 = imode.into(); | |
478 | im_id as usize | |
479 | } else if !has_top && !has_left { | |
480 | IPRED4_DC128 | |
481 | } else if !has_left { | |
482 | IPRED4_DC_TOP | |
483 | } else { | |
484 | IPRED4_DC_LEFT | |
485 | }; | |
486 | let mb_idx = sstate.mb_x + sstate.mb_y * sstate.mb_w; | |
487 | let noright = (y == 2 || sstate.mb_x == sstate.mb_w - 1 || mb_idx < sstate.mb_start + sstate.mb_w) && (x == 2); | |
488 | let has_tl = (has_top && x > 0) || (has_left && y > 0) || (x == 0 && y == 0 && sstate.mb_x > 0 && mb_idx > sstate.mb_start + sstate.mb_w); | |
489 | if id != IPRED4_DC128 { | |
490 | let top = if y == 0 { | |
491 | &sstate.top_line_y[sstate.mb_x * 16 + x * 4..] | |
492 | } else { | |
493 | &frm.data[cur_yoff - frm.stride[0]..] | |
494 | }; | |
495 | let mut left_buf = [0; 9]; | |
496 | let left = if x == 0 { | |
497 | &sstate.left_y[y * 4..] | |
498 | } else { | |
499 | if has_tl { | |
500 | if y == 0 { | |
501 | left_buf[0] = sstate.top_line_y[sstate.mb_x * 16 + x * 4 - 1]; | |
502 | } else { | |
503 | left_buf[0] = frm.data[cur_yoff - 1 - frm.stride[0]]; | |
504 | } | |
505 | } | |
506 | if has_left { | |
507 | for (dst, src) in left_buf[1..].iter_mut().zip(frm.data[cur_yoff - 1..].chunks(frm.stride[0])) { | |
508 | *dst = src[0]; | |
509 | } | |
510 | } | |
511 | &left_buf | |
512 | }; | |
513 | ictx.fill(top, left, has_top, has_top && !noright, has_left, has_tl); | |
514 | } | |
515 | IPRED_FUNCS8X8_LUMA[id](&mut frm.data[cur_yoff..], frm.stride[0], &ictx); | |
516 | if mb_info.coded[blk4] { | |
517 | add_coeffs8(frm.data, cur_yoff, frm.stride[0], &mb_info.coeffs8x8[part].coeffs); | |
518 | } | |
519 | } | |
520 | }, | |
521 | MBType::Intra4x4 => { | |
522 | for &(x,y) in I4X4_SCAN.iter() { | |
523 | let x = x as usize; | |
524 | let y = y as usize; | |
525 | let cur_yoff = yoff + x * 4 + y * 4 * frm.stride[0]; | |
526 | let has_top = y > 0 || sstate.has_top; | |
527 | let has_left = x > 0 || sstate.has_left; | |
528 | let imode = mb_info.ipred[x + y * 4]; | |
529 | let id = if imode != IntraPredMode::DC || (has_top && has_left) { | |
530 | let im_id: u8 = imode.into(); | |
531 | im_id as usize | |
532 | } else if !has_top && !has_left { | |
533 | IPRED4_DC128 | |
534 | } else if !has_left { | |
535 | IPRED4_DC_TOP | |
536 | } else { | |
537 | IPRED4_DC_LEFT | |
538 | }; | |
539 | let noright = (sstate.mb_x == sstate.mb_w - 1 || sstate.mb_x + sstate.mb_y * sstate.mb_w < sstate.mb_start + sstate.mb_w) && (x == 3); | |
540 | let tr: [u8; 4] = if y == 0 { | |
541 | let tsrc = &sstate.top_line_y[sstate.mb_x * 16 + x * 4..]; | |
542 | if has_top && !noright { | |
543 | [tsrc[4], tsrc[5], tsrc[6], tsrc[7]] | |
544 | } else if has_top { | |
545 | [tsrc[3]; 4] | |
546 | } else { | |
547 | [0; 4] | |
548 | } | |
549 | } else if (x & 1) == 0 || (x == 1 && y == 2) { | |
550 | let i = cur_yoff - frm.stride[0]; | |
551 | [frm.data[i + 4], frm.data[i + 5], frm.data[i + 6], frm.data[i + 7]] | |
552 | } else { | |
553 | let i = cur_yoff - frm.stride[0]; | |
554 | [frm.data[i + 3], frm.data[i + 3], frm.data[i + 3], frm.data[i + 3]] | |
555 | }; | |
556 | let mut top = [128; 4]; | |
557 | let mut left = [128; 9]; | |
558 | if y == 0 { | |
559 | if has_top { | |
560 | top.copy_from_slice(&sstate.top_line_y[sstate.mb_x * 16 + x * 4..][..4]); | |
561 | } | |
562 | } else { | |
563 | top.copy_from_slice(&frm.data[cur_yoff - frm.stride[0]..][..4]); | |
564 | } | |
565 | if x == 0 { | |
566 | if has_left { | |
567 | for (dst, &src) in left.iter_mut().zip(sstate.left_y[y * 4..].iter()) { | |
568 | *dst = src; | |
569 | } | |
570 | } | |
571 | } else { | |
572 | if y == 0 { | |
573 | if x == 0 { | |
574 | left[0] = sstate.left_y[y * 4]; | |
575 | } else if has_top { | |
576 | left[0] = sstate.top_line_y[sstate.mb_x * 16 + x * 4 - 1]; | |
577 | } | |
578 | } else { | |
579 | left[0] = frm.data[cur_yoff - frm.stride[0] - 1]; | |
580 | } | |
581 | for (dst, row) in left[1..].iter_mut().zip(frm.data[cur_yoff - 1..].chunks(frm.stride[0])) { | |
582 | *dst = row[0]; | |
583 | } | |
584 | } | |
585 | IPRED_FUNCS4X4[id](&mut frm.data[cur_yoff..], frm.stride[0], &top, &left, &tr); | |
586 | if mb_info.coded[x + y * 4] { | |
587 | add_coeffs(frm.data, cur_yoff, frm.stride[0], &mb_info.coeffs[x + y * 4]); | |
588 | } | |
589 | } | |
590 | }, | |
591 | _ => unreachable!(), | |
592 | }; | |
593 | let id = if mb_info.chroma_ipred != 0 || (sstate.has_top && sstate.has_left) { | |
594 | mb_info.chroma_ipred as usize | |
595 | } else if !sstate.has_top && !sstate.has_left { | |
596 | IPRED8_DC128 | |
597 | } else if !sstate.has_left { | |
598 | IPRED8_DC_TOP | |
599 | } else { | |
600 | IPRED8_DC_LEFT | |
601 | }; | |
602 | for chroma in 1..3 { | |
603 | let off = frm.offset[chroma] + sstate.mb_x * 8 + sstate.mb_y * 8 * frm.stride[chroma]; | |
604 | let top = &sstate.top_line_c[chroma - 1][sstate.mb_x * 8..]; | |
605 | IPRED_FUNCS8X8_CHROMA[id](&mut frm.data[off..], frm.stride[chroma], top, &sstate.left_c[chroma - 1]); | |
606 | } | |
607 | } | |
608 | fn add_luma(frm: &mut NASimpleVideoFrame<u8>, sstate: &SliceState, mb_info: &CurrentMBInfo) { | |
609 | let mut yoff = frm.offset[0] + sstate.mb_x * 16 + sstate.mb_y * 16 * frm.stride[0]; | |
610 | if !mb_info.transform_size_8x8 { | |
611 | for y in 0..4 { | |
612 | for x in 0..4 { | |
613 | if mb_info.coded[x + y * 4] { | |
614 | add_coeffs(frm.data, yoff + x * 4, frm.stride[0], &mb_info.coeffs[x + y * 4]); | |
615 | } | |
616 | } | |
617 | yoff += frm.stride[0] * 4; | |
618 | } | |
619 | } else { | |
620 | for y in 0..2 { | |
621 | for x in 0..2 { | |
622 | if mb_info.coded[x * 2 + y * 2 * 4] { | |
623 | add_coeffs8(frm.data, yoff + x * 8, frm.stride[0], &mb_info.coeffs8x8[x + y * 2].coeffs); | |
624 | } | |
625 | } | |
626 | yoff += frm.stride[0] * 8; | |
627 | } | |
628 | } | |
629 | } | |
630 | fn add_chroma(frm: &mut NASimpleVideoFrame<u8>, sstate: &SliceState, mb_info: &CurrentMBInfo) { | |
631 | for chroma in 1..3 { | |
632 | let mut off = frm.offset[chroma] + sstate.mb_x * 8 + sstate.mb_y * 8 * frm.stride[chroma]; | |
633 | for y in 0..2 { | |
634 | for x in 0..2 { | |
635 | let blk_no = 16 + (chroma - 1) * 4 + x + y * 2; | |
636 | if mb_info.coded[blk_no] || mb_info.coeffs[blk_no][0] != 0 { | |
637 | add_coeffs(frm.data, off + x * 4, frm.stride[chroma], &mb_info.coeffs[blk_no]); | |
638 | } | |
639 | } | |
640 | off += frm.stride[chroma] * 4; | |
641 | } | |
642 | } | |
643 | } | |
644 | fn pred_mv(sstate: &mut SliceState, frame_refs: &FrameRefs, mb_info: &mut CurrentMBInfo, cur_id: u16, temporal_mv: bool) { | |
645 | let mb_type = mb_info.mb_type; | |
646 | if !mb_type.is_4x4() { | |
647 | let (pw, ph) = mb_type.size(); | |
648 | let mut xoff = 0; | |
649 | let mut yoff = 0; | |
650 | if mb_type == MBType::Direct || mb_type == MBType::BSkip { | |
651 | sstate.predict_direct_mb(frame_refs, temporal_mv, cur_id); | |
652 | } | |
653 | for part in 0..mb_type.num_parts() { | |
654 | if !mb_type.is_l1(part) { | |
655 | match mb_type { | |
656 | MBType::PSkip => sstate.predict_pskip(), | |
657 | MBType::BSkip | MBType::Direct => { | |
658 | }, | |
659 | _ => { | |
660 | sstate.predict(xoff, yoff, pw, ph, 0, | |
661 | mb_info.mv_l0[part], mb_info.ref_l0[part]); | |
662 | }, | |
663 | }; | |
664 | } | |
665 | if !mb_type.is_l0(part) && mb_type != MBType::BSkip && mb_type != MBType::Direct { | |
666 | sstate.predict(xoff, yoff, pw, ph, 1, mb_info.mv_l1[part], mb_info.ref_l1[part]); | |
667 | } | |
668 | if pw != 16 { | |
669 | xoff += pw; | |
670 | } else { | |
671 | yoff += ph; | |
672 | } | |
673 | } | |
674 | } else { | |
675 | for part in 0..4 { | |
676 | let sub_type = mb_info.sub_mb_type[part]; | |
677 | let mut xoff = (part & 1) * 8; | |
678 | let mut yoff = (part & 2) * 4; | |
679 | let orig_x = xoff; | |
680 | let (pw, ph) = sub_type.size(); | |
681 | for subpart in 0..sub_type.num_parts() { | |
682 | if sub_type != SubMBType::Direct8x8 { | |
683 | if !sub_type.is_l1() { | |
684 | sstate.predict(xoff, yoff, pw, ph, 0, mb_info.mv_l0[part * 4 + subpart], mb_info.ref_l0[part]); | |
685 | } | |
686 | if !sub_type.is_l0() { | |
687 | sstate.predict(xoff, yoff, pw, ph, 1, mb_info.mv_l1[part * 4 + subpart], mb_info.ref_l1[part]); | |
688 | } | |
689 | } else { | |
690 | for sblk in 0..4 { | |
691 | sstate.predict_direct_sub(frame_refs, temporal_mv, cur_id, (xoff / 4) + (sblk & 1) + (yoff / 4) * 4 + (sblk & 2) * 2); | |
692 | } | |
693 | } | |
694 | xoff += pw; | |
695 | if xoff == orig_x + 8 { | |
696 | xoff -= 8; | |
697 | yoff += ph; | |
698 | } | |
699 | } | |
700 | } | |
701 | } | |
702 | } | |
703 | #[allow(clippy::cognitive_complexity)] | |
704 | fn handle_macroblock(&mut self, mb_info: &mut CurrentMBInfo) { | |
705 | let pps = &self.pps[self.cur_pps]; | |
706 | ||
707 | let qp_y = mb_info.qp_y; | |
708 | let qpr = ((qp_y as i8) + pps.chroma_qp_index_offset).max(0).min(51) as usize; | |
709 | let qp_u = CHROMA_QUANTS[qpr]; | |
710 | let qpb = ((qp_y as i8) + pps.second_chroma_qp_index_offset).max(0).min(51) as usize; | |
711 | let qp_v = CHROMA_QUANTS[qpb]; | |
712 | ||
713 | let tx_bypass = qp_y == 0 && self.sps[self.cur_sps].qpprime_y_zero_transform_bypass; | |
714 | ||
715 | self.sstate.get_cur_mb().mb_type = mb_info.mb_type.into(); | |
716 | if mb_info.mb_type != MBType::PCM { | |
717 | self.sstate.get_cur_mb().qp_y = qp_y; | |
718 | self.sstate.get_cur_mb().qp_u = qp_u; | |
719 | self.sstate.get_cur_mb().qp_v = qp_v; | |
720 | self.sstate.get_cur_mb().transform_8x8 = mb_info.transform_size_8x8; | |
721 | } | |
722 | let has_dc = mb_info.mb_type.is_intra16x16() && mb_info.coded[24]; | |
723 | if has_dc { | |
724 | idct_luma_dc(&mut mb_info.coeffs[24], qp_y); | |
725 | for i in 0..16 { | |
726 | mb_info.coeffs[i][0] = mb_info.coeffs[24][i]; | |
727 | } | |
728 | } | |
729 | if !mb_info.transform_size_8x8 { | |
730 | let quant_dc = !mb_info.mb_type.is_intra16x16(); | |
731 | for i in 0..16 { | |
732 | if mb_info.coded[i] { | |
733 | if !tx_bypass { | |
734 | idct(&mut mb_info.coeffs[i], qp_y, quant_dc); | |
735 | } | |
736 | } else if has_dc { | |
737 | if !tx_bypass { | |
738 | idct_dc(&mut mb_info.coeffs[i], qp_y, quant_dc); | |
739 | } | |
740 | mb_info.coded[i] = true; | |
741 | } | |
742 | } | |
743 | } else { | |
744 | for i in 0..4 { | |
745 | if mb_info.coded[(i & 1) * 2 + (i & 2) * 4] && !tx_bypass { | |
746 | dequant8x8(&mut mb_info.coeffs8x8[i].coeffs, &pps.scaling_list_8x8[!mb_info.mb_type.is_intra() as usize]); | |
747 | idct8x8(&mut mb_info.coeffs8x8[i].coeffs, qp_y); | |
748 | } | |
749 | } | |
750 | } | |
751 | for chroma in 0..2 { | |
752 | let qp_c = if chroma == 0 { qp_u } else { qp_v }; | |
753 | if mb_info.cbpc != 0 { | |
754 | chroma_dc_transform(&mut mb_info.chroma_dc[chroma], qp_c); | |
755 | } | |
756 | for i in 0..4 { | |
757 | let blk_no = 16 + chroma * 4 + i; | |
758 | mb_info.coeffs[blk_no][0] = mb_info.chroma_dc[chroma][i]; | |
759 | if mb_info.coded[blk_no] { | |
760 | idct(&mut mb_info.coeffs[blk_no], qp_c, false); | |
761 | } else if mb_info.coeffs[blk_no][0] != 0 { | |
762 | idct_dc(&mut mb_info.coeffs[blk_no], qp_c, false); | |
763 | mb_info.coded[blk_no] = true; | |
764 | } | |
765 | } | |
766 | } | |
767 | if !pps.entropy_coding_mode || mb_info.mb_type.is_skip() || mb_info.mb_type.is_intra() { | |
768 | self.sstate.reset_mb_mv(); | |
769 | } | |
770 | if !mb_info.mb_type.is_intra() { | |
771 | Self::pred_mv(&mut self.sstate, &self.frame_refs, mb_info, self.cur_id, self.temporal_mv); | |
772 | } | |
773 | if !pps.constrained_intra_pred && mb_info.mb_type != MBType::Intra4x4 && mb_info.mb_type != MBType::Intra8x8 { | |
774 | self.sstate.fill_ipred(IntraPredMode::DC); | |
775 | } | |
776 | ||
777 | let xpos = self.sstate.mb_x * 16; | |
778 | let ypos = self.sstate.mb_y * 16; | |
779 | if let Some(ref mut pic) = self.cur_pic { | |
780 | let mut frm = NASimpleVideoFrame::from_video_buf(&mut pic.buf).unwrap(); | |
781 | match mb_info.mb_type { | |
782 | MBType::Intra16x16(_, _, _) => { | |
783 | Self::pred_intra(&mut frm, &self.sstate, &mb_info); | |
784 | }, | |
785 | MBType::Intra4x4 | MBType::Intra8x8 => { | |
786 | Self::pred_intra(&mut frm, &self.sstate, &mb_info); | |
787 | }, | |
788 | MBType::PCM => {}, | |
789 | MBType::PSkip => { | |
790 | let mv = self.sstate.get_cur_blk4(0).mv[0]; | |
791 | let rpic = self.frame_refs.select_ref_pic(0, 0); | |
792 | Self::do_p_mc(&mut frm, xpos, ypos, 16, 16, mv, rpic); | |
793 | }, | |
794 | MBType::P16x16 => { | |
795 | let mv = self.sstate.get_cur_blk4(0).mv[0]; | |
796 | let rpic = self.frame_refs.select_ref_pic(0, mb_info.ref_l0[0].index()); | |
797 | Self::do_p_mc(&mut frm, xpos, ypos, 16, 16, mv, rpic); | |
798 | }, | |
799 | MBType::P16x8 | MBType::P8x16 => { | |
800 | let (bw, bh, bx, by) = if mb_info.mb_type == MBType::P16x8 { | |
801 | (16, 8, 0, 8) | |
802 | } else { | |
803 | (8, 16, 8, 0) | |
804 | }; | |
805 | let mv = self.sstate.get_cur_blk4(0).mv[0]; | |
806 | let rpic = self.frame_refs.select_ref_pic(0, mb_info.ref_l0[0].index()); | |
807 | Self::do_p_mc(&mut frm, xpos, ypos, bw, bh, mv, rpic); | |
808 | let mv = self.sstate.get_cur_blk4(bx / 4 + by).mv[0]; | |
809 | let rpic = self.frame_refs.select_ref_pic(0, mb_info.ref_l0[1].index()); | |
810 | Self::do_p_mc(&mut frm, xpos + bx, ypos + by, bw, bh, mv, rpic); | |
811 | }, | |
812 | MBType::P8x8 | MBType::P8x8Ref0 => { | |
813 | for part in 0..4 { | |
814 | let bx = (part & 1) * 8; | |
815 | let by = (part & 2) * 4; | |
816 | if let Some(buf) = self.frame_refs.select_ref_pic(0, mb_info.ref_l0[part].index()) { | |
817 | let mv = self.sstate.get_cur_blk4(bx / 4 + by).mv[0]; | |
818 | ||
819 | match mb_info.sub_mb_type[part] { | |
820 | SubMBType::P8x8 => { | |
821 | do_mc(&mut frm, buf, xpos + bx, ypos + by, 8, 8, mv); | |
822 | }, | |
823 | SubMBType::P8x4 => { | |
824 | do_mc(&mut frm, buf.clone(), xpos + bx, ypos + by, 8, 4, mv); | |
825 | let mv = self.sstate.get_cur_blk4(bx / 4 + by + 4).mv[0]; | |
826 | do_mc(&mut frm, buf, xpos + bx, ypos + by + 4, 8, 4, mv); | |
827 | }, | |
828 | SubMBType::P4x8 => { | |
829 | do_mc(&mut frm, buf.clone(), xpos + bx, ypos + by, 4, 8, mv); | |
830 | let mv = self.sstate.get_cur_blk4(bx / 4 + by + 1).mv[0]; | |
831 | do_mc(&mut frm, buf, xpos + bx + 4, ypos + by, 4, 8, mv); | |
832 | }, | |
833 | SubMBType::P4x4 => { | |
834 | for sb_no in 0..4 { | |
835 | let sxpos = xpos + bx + (sb_no & 1) * 4; | |
836 | let sypos = ypos + by + (sb_no & 2) * 2; | |
837 | let sblk_no = (bx / 4 + (sb_no & 1)) + ((by / 4) + (sb_no >> 1)) * 4; | |
838 | let mv = self.sstate.get_cur_blk4(sblk_no).mv[0]; | |
839 | do_mc(&mut frm, buf.clone(), sxpos, sypos, 4, 4, mv); | |
840 | } | |
841 | }, | |
842 | _ => unreachable!(), | |
843 | }; | |
844 | } else { | |
845 | gray_block(&mut frm, xpos + bx, ypos + by, 8, 8); | |
846 | } | |
847 | } | |
848 | }, | |
849 | MBType::B16x16(mode) => { | |
850 | let mv0 = self.sstate.get_cur_blk4(0).mv[0]; | |
851 | let rpic0 = self.frame_refs.select_ref_pic(0, mb_info.ref_l0[0].index()); | |
852 | let mv1 = self.sstate.get_cur_blk4(0).mv[1]; | |
853 | let rpic1 = self.frame_refs.select_ref_pic(1, mb_info.ref_l1[0].index()); | |
854 | Self::do_b_mc(&mut frm, mode, xpos, ypos, 16, 16, mv0, rpic0, mv1, rpic1, &mut self.avg_buf); | |
855 | }, | |
856 | MBType::B16x8(mode0, mode1) | MBType::B8x16(mode0, mode1) => { | |
857 | let (pw, ph) = mb_info.mb_type.size(); | |
858 | let (px, py) = (pw & 8, ph & 8); | |
859 | let modes = [mode0, mode1]; | |
860 | let (mut bx, mut by) = (0, 0); | |
861 | for part in 0..2 { | |
862 | let blk = if part == 0 { 0 } else { (px / 4) + py }; | |
863 | let mv0 = self.sstate.get_cur_blk4(blk).mv[0]; | |
864 | let rpic0 = self.frame_refs.select_ref_pic(0, mb_info.ref_l0[part].index()); | |
865 | let mv1 = self.sstate.get_cur_blk4(blk).mv[1]; | |
866 | let rpic1 = self.frame_refs.select_ref_pic(1, mb_info.ref_l1[part].index()); | |
867 | Self::do_b_mc(&mut frm, modes[part], xpos + bx, ypos + by, pw, ph, mv0, rpic0, mv1, rpic1, &mut self.avg_buf); | |
868 | bx += px; | |
869 | by += py; | |
870 | } | |
871 | }, | |
872 | MBType::Direct | MBType::BSkip => { | |
873 | let is_16x16 = self.frame_refs.get_colocated_info(self.sstate.mb_x, self.sstate.mb_y).0.mb_type.is_16x16(); | |
874 | if is_16x16 || !self.temporal_mv { | |
875 | let mv = self.sstate.get_cur_blk4(0).mv; | |
876 | let ref_idx = self.sstate.get_cur_blk8(0).ref_idx; | |
877 | let rpic0 = self.frame_refs.select_ref_pic(0, ref_idx[0].index()); | |
878 | let rpic1 = self.frame_refs.select_ref_pic(1, ref_idx[1].index()); | |
879 | Self::do_b_mc(&mut frm, BMode::Bi, xpos, ypos, 16, 16, mv[0], rpic0, mv[1], rpic1, &mut self.avg_buf); | |
880 | } else { | |
881 | for blk4 in 0..16 { | |
882 | let mv = self.sstate.get_cur_blk4(blk4).mv; | |
883 | let ref_idx = self.sstate.get_cur_blk8(blk4_to_blk8(blk4)).ref_idx; | |
884 | let rpic0 = self.frame_refs.select_ref_pic(0, ref_idx[0].index()); | |
885 | let rpic1 = self.frame_refs.select_ref_pic(1, ref_idx[1].index()); | |
886 | Self::do_b_mc(&mut frm, BMode::Bi, xpos + (blk4 & 3) * 4, ypos + (blk4 >> 2) * 4, 4, 4, mv[0], rpic0, mv[1], rpic1, &mut self.avg_buf); | |
887 | } | |
888 | } | |
889 | self.sstate.apply_to_blk8(|blk8| { blk8.ref_idx[0].set_direct(); blk8.ref_idx[1].set_direct(); }); | |
890 | }, | |
891 | MBType::B8x8 => { | |
892 | for part in 0..4 { | |
893 | let ridx = self.sstate.get_cur_blk8(part).ref_idx; | |
894 | let rpic0 = self.frame_refs.select_ref_pic(0, ridx[0].index()); | |
895 | let rpic1 = self.frame_refs.select_ref_pic(1, ridx[1].index()); | |
896 | let subtype = mb_info.sub_mb_type[part]; | |
897 | let blk8 = (part & 1) * 2 + (part & 2) * 4; | |
898 | let mut bx = (part & 1) * 8; | |
899 | let mut by = (part & 2) * 4; | |
900 | match subtype { | |
901 | SubMBType::Direct8x8 => { | |
902 | for blk in 0..4 { | |
903 | let mv = self.sstate.get_cur_blk4(bx / 4 + (by / 4) * 4).mv; | |
904 | let ref_idx = self.sstate.get_cur_blk8(bx / 8 + (by / 8) * 2).ref_idx; | |
905 | let rpic0 = self.frame_refs.select_ref_pic(0, ref_idx[0].index()); | |
906 | let rpic1 = self.frame_refs.select_ref_pic(1, ref_idx[1].index()); | |
907 | Self::do_b_mc(&mut frm, BMode::Bi, xpos + bx, ypos + by, 4, 4, mv[0], rpic0, mv[1], rpic1, &mut self.avg_buf); | |
908 | bx += 4; | |
909 | if blk == 1 { | |
910 | bx -= 8; | |
911 | by += 4; | |
912 | } | |
913 | } | |
914 | self.sstate.get_cur_blk8(part).ref_idx[0].set_direct(); | |
915 | self.sstate.get_cur_blk8(part).ref_idx[1].set_direct(); | |
916 | }, | |
917 | SubMBType::B8x8(mode) => { | |
918 | let mv = self.sstate.get_cur_blk4(blk8).mv; | |
919 | Self::do_b_mc(&mut frm, mode, xpos + bx, ypos + by, 8, 8, mv[0], rpic0, mv[1], rpic1, &mut self.avg_buf); | |
920 | }, | |
921 | SubMBType::B8x4(mode) | SubMBType::B4x8(mode) => { | |
922 | let (pw, ph) = subtype.size(); | |
923 | let mv = self.sstate.get_cur_blk4(blk8).mv; | |
924 | Self::do_b_mc(&mut frm, mode, xpos + bx, ypos + by, pw, ph, mv[0], rpic0.clone(), mv[1], rpic1.clone(), &mut self.avg_buf); | |
925 | let addr2 = blk8 + (pw & 4) / 4 + (ph & 4); | |
926 | let mv = self.sstate.get_cur_blk4(addr2).mv; | |
927 | Self::do_b_mc(&mut frm, mode, xpos + bx + (pw & 4), ypos + by + (ph & 4), pw, ph, mv[0], rpic0, mv[1], rpic1, &mut self.avg_buf); | |
928 | }, | |
929 | SubMBType::B4x4(mode) => { | |
930 | for i in 0..4 { | |
931 | let addr2 = blk8 + (i & 1) + (i & 2) * 2; | |
932 | let mv = self.sstate.get_cur_blk4(addr2).mv; | |
933 | Self::do_b_mc(&mut frm, mode, xpos + bx, ypos + by, 4, 4, mv[0], rpic0.clone(), mv[1], rpic1.clone(), &mut self.avg_buf); | |
934 | bx += 4; | |
935 | if i == 1 { | |
936 | bx -= 8; | |
937 | by += 4; | |
938 | } | |
939 | } | |
940 | }, | |
941 | _ => unreachable!(), | |
942 | }; | |
943 | } | |
944 | }, | |
945 | }; | |
946 | if mb_info.mb_type == MBType::PCM { | |
947 | for (dline, src) in frm.data[frm.offset[0] + xpos + ypos * frm.stride[0]..].chunks_mut(frm.stride[0]).take(16).zip(self.ipcm_buf.chunks(16)) { | |
948 | dline[..16].copy_from_slice(src); | |
949 | } | |
950 | for (dline, src) in frm.data[frm.offset[1] + xpos/2 + ypos/2 * frm.stride[1]..].chunks_mut(frm.stride[1]).take(8).zip(self.ipcm_buf[256..].chunks(8)) { | |
951 | dline[..8].copy_from_slice(src); | |
952 | } | |
953 | for (dline, src) in frm.data[frm.offset[2] + xpos/2 + ypos/2 * frm.stride[2]..].chunks_mut(frm.stride[2]).take(8).zip(self.ipcm_buf[256 + 64..].chunks(8)) { | |
954 | dline[..8].copy_from_slice(src); | |
955 | } | |
956 | } else if !mb_info.mb_type.is_skip() { | |
957 | if mb_info.mb_type != MBType::Intra4x4 && mb_info.mb_type != MBType::Intra8x8 { | |
958 | Self::add_luma(&mut frm, &self.sstate, &mb_info); | |
959 | } | |
960 | Self::add_chroma(&mut frm, &self.sstate, &mb_info); | |
961 | } | |
962 | /*match mb_info.mb_type { | |
963 | MBType::BSkip | MBType::Direct | MBType::B16x16(_) | MBType::B16x8(_, _) | MBType::B8x16(_, _) | MBType::B8x8 => { | |
964 | let dstride = frm.stride[0]; | |
965 | let dst = &mut frm.data[frm.offset[0] + self.sstate.mb_x * 16 + self.sstate.mb_y * 16 * dstride..]; | |
966 | for el in dst[..16].iter_mut() { *el = 255; } | |
967 | for row in dst.chunks_mut(dstride).skip(1).take(15) { | |
968 | row[0] = 255; | |
969 | } | |
970 | }, | |
971 | _ => {}, | |
972 | };*/ | |
973 | self.sstate.save_ipred_context(&frm); | |
974 | } | |
975 | if let Some(ref mut pic) = self.cur_pic { | |
976 | let mv_info = &mut pic.mv_info; | |
977 | let mb_pos = self.sstate.mb_x + self.sstate.mb_y * mv_info.mb_stride; | |
978 | let mut mb = FrameMBInfo::new(); | |
979 | mb.mb_type = mb_info.mb_type.into(); | |
980 | for blk4 in 0..16 { | |
981 | mb.mv[blk4] = self.sstate.get_cur_blk4(blk4).mv; | |
982 | } | |
983 | for blk8 in 0..4 { | |
984 | mb.ref_poc[blk8] = self.frame_refs.map_refs(self.sstate.get_cur_blk8(blk8).ref_idx); | |
985 | mb.ref_idx[blk8] = self.sstate.get_cur_blk8(blk8).ref_idx; | |
986 | } | |
987 | mv_info.mbs[mb_pos] = mb; | |
988 | } | |
989 | if !self.deblock_skip && self.deblock_mode != 1 { | |
990 | self.sstate.fill_deblock(&self.frame_refs, self.deblock_mode, self.is_s); | |
991 | if let Some(ref mut pic) = self.cur_pic { | |
992 | let mut frm = NASimpleVideoFrame::from_video_buf(&mut pic.buf).unwrap(); | |
993 | loop_filter_mb(&mut frm, &self.sstate, self.lf_alpha, self.lf_beta); | |
994 | } | |
995 | } | |
996 | self.sstate.next_mb(); | |
997 | } | |
998 | fn do_p_mc(frm: &mut NASimpleVideoFrame<u8>, xpos: usize, ypos: usize, w: usize, h: usize, mv: MV, ref_pic: Option<NAVideoBufferRef<u8>>) { | |
999 | if let Some(buf) = ref_pic { | |
1000 | do_mc(frm, buf, xpos, ypos, w, h, mv); | |
1001 | } else { | |
1002 | gray_block(frm, xpos, ypos, w, h); | |
1003 | } | |
1004 | } | |
1005 | fn do_b_mc(frm: &mut NASimpleVideoFrame<u8>, mode: BMode, xpos: usize, ypos: usize, w: usize, h: usize, mv0: MV, ref_pic0: Option<NAVideoBufferRef<u8>>, mv1: MV, ref_pic1: Option<NAVideoBufferRef<u8>>, avg_buf: &mut NAVideoBufferRef<u8>) { | |
1006 | match mode { | |
1007 | BMode::L0 => { | |
1008 | if let Some(buf) = ref_pic0 { | |
1009 | do_mc(frm, buf, xpos, ypos, w, h, mv0); | |
1010 | } else { | |
1011 | gray_block(frm, xpos, ypos, w, h); | |
1012 | } | |
1013 | }, | |
1014 | BMode::L1 => { | |
1015 | if let Some(buf) = ref_pic1 { | |
1016 | do_mc(frm, buf, xpos, ypos, w, h, mv1); | |
1017 | } else { | |
1018 | gray_block(frm, xpos, ypos, w, h); | |
1019 | } | |
1020 | }, | |
1021 | BMode::Bi => { | |
1022 | match (ref_pic0, ref_pic1) { | |
1023 | (Some(buf0), Some(buf1)) => { | |
1024 | do_mc(frm, buf0, xpos, ypos, w, h, mv0); | |
1025 | do_mc_avg(frm, buf1, xpos, ypos, w, h, mv1, avg_buf); | |
1026 | }, | |
1027 | (Some(buf0), None) => { | |
1028 | do_mc(frm, buf0, xpos, ypos, w, h, mv0); | |
1029 | }, | |
1030 | (None, Some(buf1)) => { | |
1031 | do_mc(frm, buf1, xpos, ypos, w, h, mv1); | |
1032 | }, | |
1033 | (None, None) => { | |
1034 | gray_block(frm, xpos, ypos, w, h); | |
1035 | }, | |
1036 | }; | |
1037 | }, | |
1038 | }; | |
1039 | } | |
1040 | fn decode_slice_cavlc(&mut self, br: &mut BitReader, slice_hdr: &SliceHeader, full_size: usize) -> DecoderResult<bool> { | |
1041 | const INTRA_CBP: [u8; 48] = [ | |
1042 | 47, 31, 15, 0, 23, 27, 29, 30, 7, 11, 13, 14, 39, 43, 45, 46, | |
1043 | 16, 3, 5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1, 2, 4, | |
1044 | 8, 17, 18, 20, 24, 6, 9, 22, 25, 32, 33, 34, 36, 40, 38, 41 | |
1045 | ]; | |
1046 | const INTER_CBP: [u8; 48] = [ | |
1047 | 0, 16, 1, 2, 4, 8, 32, 3, 5, 10, 12, 15, 47, 7, 11, 13, | |
1048 | 14, 6, 9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46, | |
1049 | 17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41 | |
1050 | ]; | |
1051 | ||
1052 | let mut mb_idx = slice_hdr.first_mb_in_slice as usize; | |
1053 | let mut mb_info = CurrentMBInfo::default(); | |
1054 | mb_info.qp_y = slice_hdr.slice_qp; | |
1055 | let skip_type = if slice_hdr.slice_type.is_p() { MBType::PSkip } else { MBType::BSkip }; | |
1056 | while br.tell() < full_size && mb_idx < self.num_mbs { | |
1057 | mb_info.coded = [false; 25]; | |
1058 | mb_info.ref_l0 = [ZERO_REF; 4]; | |
1059 | mb_info.ref_l1 = [ZERO_REF; 4]; | |
1060 | mb_info.mv_l0 = [ZERO_MV; 16]; | |
1061 | mb_info.mv_l1 = [ZERO_MV; 16]; | |
1062 | mb_info.chroma_dc = [[0; 4]; 2]; | |
1063 | mb_info.cbpy = 0; | |
1064 | mb_info.cbpc = 0; | |
1065 | ||
1066 | if !slice_hdr.slice_type.is_intra() { | |
1067 | let mb_skip_run = br.read_ue()? as usize; | |
1068 | validate!(mb_idx + mb_skip_run <= self.num_mbs); | |
1069 | mb_info.mb_type = skip_type; | |
1070 | for _ in 0..mb_skip_run { | |
1071 | self.handle_macroblock(&mut mb_info); | |
1072 | mb_idx += 1; | |
1073 | } | |
1074 | if mb_idx == self.num_mbs || br.tell() >= full_size { | |
1075 | break; | |
1076 | } | |
1077 | } | |
1078 | if br.tell() < full_size { | |
1079 | if self.is_mbaff && ((mb_idx & 1) == 0) { | |
1080 | let _mb_field_decoding = br.read_bool()?; | |
1081 | } | |
1082 | let mut mb_type = decode_mb_type_cavlc(br, slice_hdr)?; | |
1083 | mb_info.mb_type = mb_type; | |
1084 | mb_info.transform_size_8x8 = false; | |
1085 | if mb_type == MBType::PCM { | |
1086 | br.align(); | |
1087 | for pix in self.ipcm_buf[..256 + 64 + 64].iter_mut() { | |
1088 | *pix = br.read(8)? as u8; | |
1089 | } | |
1090 | self.sstate.fill_ncoded(16); | |
1091 | } else { | |
1092 | if self.transform_8x8_mode && mb_type == MBType::Intra4x4 { | |
1093 | mb_info.transform_size_8x8 = br.read_bool()?; | |
1094 | if mb_info.transform_size_8x8 { | |
1095 | mb_type = MBType::Intra8x8; | |
1096 | mb_info.mb_type = MBType::Intra8x8; | |
1097 | } | |
1098 | } | |
1099 | decode_mb_pred_cavlc(br, slice_hdr, mb_type, &mut self.sstate, &mut mb_info)?; | |
1100 | let (cbpy, cbpc) = if let MBType::Intra16x16(_, cbpy, cbpc) = mb_type { | |
1101 | (cbpy, cbpc) | |
1102 | } else { | |
1103 | let cbp_id = br.read_ue()? as usize; | |
1104 | validate!(cbp_id < INTRA_CBP.len()); | |
1105 | let cbp = if mb_type == MBType::Intra4x4 || mb_type == MBType::Intra8x8 { | |
1106 | INTRA_CBP[cbp_id] | |
1107 | } else { | |
1108 | INTER_CBP[cbp_id] | |
1109 | }; | |
1110 | if self.transform_8x8_mode && (cbp & 0xF) != 0 && mb_info.can_have_8x8_tx(self.sps[self.cur_sps].direct_8x8_inference) { | |
1111 | mb_info.transform_size_8x8 = br.read_bool()?; | |
1112 | } | |
1113 | ((cbp & 0xF), (cbp >> 4)) | |
1114 | }; | |
1115 | mb_info.cbpy = cbpy; | |
1116 | mb_info.cbpc = cbpc; | |
1117 | self.sstate.get_cur_mb().cbp = (cbpc << 4) | cbpy; | |
1118 | if cbpy != 0 || cbpc != 0 || mb_type.is_intra16x16() { | |
1119 | let mb_qp_delta = br.read_se()?; | |
1120 | validate!(mb_qp_delta >= -26 && mb_qp_delta <= 25); | |
1121 | let new_qp = mb_qp_delta + i32::from(mb_info.qp_y); | |
1122 | mb_info.qp_y = if new_qp < 0 { | |
1123 | (new_qp + 52) as u8 | |
1124 | } else if new_qp >= 52 { | |
1125 | (new_qp - 52) as u8 | |
1126 | } else { | |
1127 | new_qp as u8 | |
1128 | }; | |
1129 | mb_info.coeffs = [[0; 16]; 25]; | |
1130 | if self.transform_8x8_mode { | |
1131 | mb_info.clear_coeffs8x8(); | |
1132 | } | |
1133 | mb_info.chroma_dc = [[0; 4]; 2]; | |
1134 | decode_residual_cavlc(br, &mut self.sstate, &mut mb_info, &self.cavlc_cb)?; | |
1135 | } | |
1136 | } | |
1137 | self.handle_macroblock(&mut mb_info); | |
1138 | } | |
1139 | mb_idx += 1; | |
1140 | } | |
1141 | if let Some(ref mut pic) = self.cur_pic { | |
1142 | pic.cur_mb = mb_idx; | |
1143 | } | |
1144 | Ok(mb_idx == self.num_mbs) | |
1145 | } | |
1146 | fn decode_slice_cabac(&mut self, cabac: &mut CABAC, slice_hdr: &SliceHeader) -> DecoderResult<bool> { | |
1147 | let mut mb_idx = slice_hdr.first_mb_in_slice as usize; | |
1148 | let mut prev_mb_skipped = false; | |
1149 | let skip_type = if slice_hdr.slice_type.is_p() { MBType::PSkip } else { MBType::BSkip }; | |
1150 | let mut last_qp_diff = false; | |
1151 | ||
1152 | let mut mb_info = CurrentMBInfo::default(); | |
1153 | mb_info.qp_y = slice_hdr.slice_qp; | |
1154 | ||
1155 | while mb_idx < self.num_mbs { | |
1156 | mb_info.coded = [false; 25]; | |
1157 | mb_info.ref_l0 = [ZERO_REF; 4]; | |
1158 | mb_info.ref_l1 = [ZERO_REF; 4]; | |
1159 | mb_info.mv_l0 = [ZERO_MV; 16]; | |
1160 | mb_info.mv_l1 = [ZERO_MV; 16]; | |
1161 | mb_info.chroma_dc = [[0; 4]; 2]; | |
1162 | mb_info.cbpy = 0; | |
1163 | mb_info.cbpc = 0; | |
1164 | let mb_skip = cabac_decode_mbskip(cabac, &self.sstate, slice_hdr); | |
1165 | if !mb_skip { | |
1166 | if self.is_mbaff && (((mb_idx & 1) == 0) || (prev_mb_skipped && ((mb_idx & 1) == 1))) { | |
1167 | let _mb_field_decoding = cabac.decode_bit(70); | |
1168 | } | |
1169 | let mut mb_type = cabac_decode_mb_type(cabac, &slice_hdr, &self.sstate); | |
1170 | mb_info.mb_type = mb_type; | |
1171 | mb_info.transform_size_8x8 = false; | |
1172 | if mb_type == MBType::PCM { | |
1173 | let ipcm_size = 256 + 64 + 64; | |
1174 | validate!(cabac.pos + ipcm_size <= cabac.src.len()); | |
1175 | self.ipcm_buf[..ipcm_size].copy_from_slice(&cabac.src[cabac.pos..][..ipcm_size]); | |
1176 | cabac.pos += ipcm_size; | |
1177 | cabac.reinit()?; | |
1178 | last_qp_diff = false; | |
1179 | } else { | |
1180 | if self.transform_8x8_mode && mb_type == MBType::Intra4x4 { | |
1181 | let mut ctx = 0; | |
1182 | if self.sstate.get_top_mb().transform_8x8 { | |
1183 | ctx += 1; | |
1184 | } | |
1185 | if self.sstate.get_left_mb().transform_8x8 { | |
1186 | ctx += 1; | |
1187 | } | |
1188 | mb_info.transform_size_8x8 = cabac.decode_bit(399 + ctx); | |
1189 | if mb_info.transform_size_8x8 { | |
1190 | mb_type = MBType::Intra8x8; | |
1191 | mb_info.mb_type = MBType::Intra8x8; | |
1192 | } | |
1193 | } | |
1194 | decode_mb_pred_cabac(cabac, slice_hdr, mb_type, &mut self.sstate, &mut mb_info); | |
1195 | let (cbpy, cbpc) = if let MBType::Intra16x16(_, cbpy, cbpc) = mb_type { | |
1196 | (cbpy, cbpc) | |
1197 | } else { | |
1198 | decode_cbp_cabac(cabac, &self.sstate) | |
1199 | }; | |
1200 | if self.transform_8x8_mode && cbpy != 0 && mb_info.can_have_8x8_tx(self.sps[self.cur_sps].direct_8x8_inference) { | |
1201 | let mut ctx = 0; | |
1202 | if self.sstate.get_top_mb().transform_8x8 { | |
1203 | ctx += 1; | |
1204 | } | |
1205 | if self.sstate.get_left_mb().transform_8x8 { | |
1206 | ctx += 1; | |
1207 | } | |
1208 | mb_info.transform_size_8x8 = cabac.decode_bit(399 + ctx); | |
1209 | } | |
1210 | if mb_type.is_intra() { | |
1211 | self.sstate.get_cur_mb().cmode = mb_info.chroma_ipred; | |
1212 | } | |
1213 | mb_info.cbpy = cbpy; | |
1214 | mb_info.cbpc = cbpc; | |
1215 | self.sstate.get_cur_mb().cbp = (cbpc << 4) | cbpy; | |
1216 | if cbpy != 0 || cbpc != 0 || mb_type.is_intra16x16() { | |
1217 | let mb_qp_delta = decode_mb_qp_delta_cabac(cabac, last_qp_diff as usize); | |
1218 | validate!(mb_qp_delta >= -26 && mb_qp_delta <= 25); | |
1219 | last_qp_diff = mb_qp_delta != 0; | |
1220 | let new_qp = mb_qp_delta + i32::from(mb_info.qp_y); | |
1221 | mb_info.qp_y = if new_qp < 0 { | |
1222 | (new_qp + 52) as u8 | |
1223 | } else if new_qp >= 52 { | |
1224 | (new_qp - 52) as u8 | |
1225 | } else { | |
1226 | new_qp as u8 | |
1227 | }; | |
1228 | mb_info.coeffs = [[0; 16]; 25]; | |
1229 | if self.transform_8x8_mode { | |
1230 | mb_info.clear_coeffs8x8(); | |
1231 | } | |
1232 | mb_info.chroma_dc = [[0; 4]; 2]; | |
1233 | decode_residual_cabac(cabac, &mut self.sstate, &mut mb_info); | |
1234 | } else { | |
1235 | last_qp_diff = false; | |
1236 | } | |
1237 | } | |
1238 | } else { | |
1239 | mb_info.mb_type = skip_type; | |
1240 | mb_info.transform_size_8x8 = false; | |
1241 | last_qp_diff = false; | |
1242 | } | |
1243 | self.handle_macroblock(&mut mb_info); | |
1244 | prev_mb_skipped = mb_skip; | |
1245 | if !(self.is_mbaff && ((mb_idx & 1) == 0)) && cabac.decode_terminate() { | |
1246 | if let Some(ref mut pic) = self.cur_pic { | |
1247 | pic.cur_mb = mb_idx + 1; | |
1248 | } | |
1249 | return Ok(mb_idx + 1 == self.num_mbs); | |
1250 | } | |
1251 | mb_idx += 1; | |
1252 | } | |
1253 | Err(DecoderError::InvalidData) | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | impl NADecoder for H264Decoder { | |
1258 | fn init(&mut self, supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { | |
1259 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { | |
1260 | let fmt = YUV420_FORMAT; | |
1261 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, fmt)); | |
1262 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref(); | |
1263 | ||
1264 | let edata = info.get_extradata().unwrap(); | |
1265 | //print!("edata:"); for &el in edata.iter() { print!(" {:02X}", el); } println!(); | |
1266 | if edata.len() > 11 && &edata[0..4] == b"avcC" { | |
1267 | let mut mr = MemoryReader::new_read(edata.as_slice()); | |
1268 | let mut br = ByteReader::new(&mut mr); | |
1269 | let mut nal_buf = Vec::new(); | |
1270 | ||
1271 | br.read_skip(4)?; | |
1272 | let version = br.read_byte()?; | |
1273 | validate!(version == 1); | |
1274 | let profile = br.read_byte()?; | |
1275 | let _compatibility = br.read_byte()?; | |
1276 | let _level = br.read_byte()?; | |
1277 | let b = br.read_byte()?; | |
1278 | validate!((b & 0xFC) == 0xFC); | |
1279 | self.nal_len = (b & 3) + 1; | |
1280 | let b = br.read_byte()?; | |
1281 | validate!((b & 0xE0) == 0xE0); | |
1282 | let num_sps = (b & 0x1F) as usize; | |
1283 | for _ in 0..num_sps { | |
1284 | let len = br.read_u16be()? as usize; | |
1285 | let offset = br.tell() as usize; | |
1286 | validate!((br.peek_byte()? & 0x1F) == 7); | |
1287 | let _size = unescape_nal(&edata[offset..][..len], &mut nal_buf); | |
1288 | self.handle_nal(&nal_buf, supp, true)?; | |
1289 | br.read_skip(len)?; | |
1290 | } | |
1291 | let num_pps = br.read_byte()? as usize; | |
1292 | for _ in 0..num_pps { | |
1293 | let len = br.read_u16be()? as usize; | |
1294 | let offset = br.tell() as usize; | |
1295 | validate!((br.peek_byte()? & 0x1F) == 8); | |
1296 | let _size = unescape_nal(&edata[offset..][..len], &mut nal_buf); | |
1297 | self.handle_nal(&nal_buf, supp, true)?; | |
1298 | br.read_skip(len)?; | |
1299 | } | |
1300 | if br.left() > 0 { | |
1301 | match profile { | |
1302 | 100 | 110 | 122 | 144 => { | |
1303 | let b = br.read_byte()?; | |
1304 | validate!((b & 0xFC) == 0xFC); | |
1305 | // b & 3 -> chroma format | |
1306 | let b = br.read_byte()?; | |
1307 | validate!((b & 0xF8) == 0xF8); | |
1308 | // b & 7 -> luma depth minus 8 | |
1309 | let b = br.read_byte()?; | |
1310 | validate!((b & 0xF8) == 0xF8); | |
1311 | // b & 7 -> chroma depth minus 8 | |
1312 | let num_spsext = br.read_byte()? as usize; | |
1313 | for _ in 0..num_spsext { | |
1314 | let len = br.read_u16be()? as usize; | |
1315 | // parse spsext | |
1316 | br.read_skip(len)?; | |
1317 | } | |
1318 | }, | |
1319 | _ => {}, | |
1320 | }; | |
1321 | } | |
1322 | } else { | |
1323 | return Err(DecoderError::NotImplemented); | |
1324 | } | |
1325 | ||
1326 | self.width = vinfo.get_width(); | |
1327 | self.height = vinfo.get_height(); | |
1328 | ||
1329 | if (self.width == 0 || self.height == 0) && !self.sps.is_empty() { | |
1330 | self.width = self.sps[0].pic_width_in_mbs * 16; | |
1331 | self.height = self.sps[0].pic_height_in_mbs * 16; | |
1332 | } | |
1333 | ||
1334 | let num_bufs = if !self.sps.is_empty() { | |
1335 | self.sps[0].num_ref_frames as usize + 1 | |
1336 | } else { | |
1337 | 3 | |
1338 | }.max(16 + 1); | |
1339 | supp.pool_u8.set_dec_bufs(num_bufs); | |
1340 | supp.pool_u8.prealloc_video(NAVideoInfo::new(self.width, self.height, false, fmt), 4)?; | |
1341 | ||
1342 | Ok(()) | |
1343 | } else { | |
1344 | println!("???"); | |
1345 | Err(DecoderError::InvalidData) | |
1346 | } | |
1347 | } | |
1348 | fn decode(&mut self, supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { | |
1349 | let src = pkt.get_buffer(); | |
1350 | ||
1351 | let mut mr = MemoryReader::new_read(&src); | |
1352 | let mut br = ByteReader::new(&mut mr); | |
1353 | let mut nal_buf = Vec::with_capacity(src.len()); | |
1354 | if self.nal_len > 0 { | |
1355 | let mut skip_decoding = false; | |
1356 | if self.skip_mode != FrameSkipMode::None { | |
1357 | let mut pic_type = FrameType::I; | |
1358 | let mut is_ref = false; | |
1359 | while br.left() > 0 { | |
1360 | let size = match self.nal_len { | |
1361 | 1 => br.read_byte()? as usize, | |
1362 | 2 => br.read_u16be()? as usize, | |
1363 | 3 => br.read_u24be()? as usize, | |
1364 | 4 => br.read_u32be()? as usize, | |
1365 | _ => unreachable!(), | |
1366 | }; | |
1367 | validate!(br.left() >= (size as i64)); | |
1368 | let offset = br.tell() as usize; | |
1369 | let size = unescape_nal(&src[offset..][..size], &mut nal_buf); | |
1370 | validate!(size > 0); | |
1371 | let nal_ref_idc = nal_buf[0] >> 5; | |
1372 | let nal_unit_type = nal_buf[0] & 0x1F; | |
1373 | if nal_unit_type == 1 || nal_unit_type == 5 { | |
1374 | let mut bitr = BitReader::new(&nal_buf[1..], BitReaderMode::BE); | |
1375 | let (first_mb, slice_type) = parse_slice_header_minimal(&mut bitr)?; | |
1376 | if first_mb == 0 && nal_ref_idc != 0 { | |
1377 | is_ref = true; | |
1378 | } | |
1379 | let new_type = slice_type.to_frame_type(); | |
1380 | pic_type = match (pic_type, new_type) { | |
1381 | (FrameType::I, _) => new_type, | |
1382 | (_, FrameType::B) => FrameType::B, | |
1383 | _ => pic_type, | |
1384 | }; | |
1385 | } | |
1386 | br.read_skip(size)?; | |
1387 | } | |
1388 | match self.skip_mode { | |
1389 | FrameSkipMode::IntraOnly => { | |
1390 | skip_decoding = pic_type != FrameType::I; | |
1391 | }, | |
1392 | FrameSkipMode::KeyframesOnly => { | |
1393 | if !is_ref { | |
1394 | skip_decoding = true; | |
1395 | } | |
1396 | }, | |
1397 | _ => {}, | |
1398 | }; | |
1399 | br.seek(SeekFrom::Start(0))?; | |
1400 | } | |
1401 | while br.left() > 0 { | |
1402 | let size = match self.nal_len { | |
1403 | 1 => br.read_byte()? as usize, | |
1404 | 2 => br.read_u16be()? as usize, | |
1405 | 3 => br.read_u24be()? as usize, | |
1406 | 4 => br.read_u32be()? as usize, | |
1407 | _ => unreachable!(), | |
1408 | }; | |
1409 | validate!(br.left() >= (size as i64)); | |
1410 | let offset = br.tell() as usize; | |
1411 | let _size = unescape_nal(&src[offset..][..size], &mut nal_buf); | |
1412 | self.handle_nal(nal_buf.as_slice(), supp, skip_decoding)?; | |
1413 | br.read_skip(size)?; | |
1414 | } | |
1415 | } else { | |
1416 | //todo NAL detection | |
1417 | unimplemented!(); | |
1418 | } | |
1419 | ||
1420 | let (bufinfo, ftype, dts) = if self.has_pic && self.cur_pic.is_some() { | |
1421 | let mut npic = None; | |
1422 | std::mem::swap(&mut self.cur_pic, &mut npic); | |
1423 | let cpic = npic.unwrap(); | |
1424 | let ret = (NABufferType::Video(cpic.buf.clone()), cpic.pic_type, Some(u64::from(cpic.full_id))); | |
1425 | if cpic.is_ref { | |
1426 | self.frame_refs.add_short_term(cpic.clone(), self.sps[self.cur_sps].num_ref_frames); | |
1427 | } | |
1428 | if let Some(lt_idx) = cpic.long_term { | |
1429 | self.frame_refs.add_long_term(lt_idx, cpic); | |
1430 | } | |
1431 | ret | |
1432 | } else { | |
1433 | (NABufferType::None, FrameType::Skip, None) | |
1434 | }; | |
1435 | ||
1436 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo); | |
1437 | frm.set_keyframe(ftype == FrameType::I); | |
1438 | if let (Some(mydts), None) = (dts, frm.get_dts()) { | |
1439 | frm.set_dts(Some(mydts)); | |
1440 | } | |
1441 | if let Some(dts) = dts { | |
1442 | frm.set_id(dts as i64); | |
1443 | } | |
1444 | frm.set_frame_type(ftype); | |
1445 | Ok(frm.into_ref()) | |
1446 | } | |
1447 | fn flush(&mut self) { | |
1448 | } | |
1449 | } | |
1450 | ||
1451 | const DEBLOCK_SKIP_OPTION: &str = "skip_deblock"; | |
1452 | ||
1453 | const DECODER_OPTIONS: &[NAOptionDefinition] = &[ | |
1454 | NAOptionDefinition { | |
1455 | name: FRAME_SKIP_OPTION, description: FRAME_SKIP_OPTION_DESC, | |
1456 | opt_type: NAOptionDefinitionType::Bool }, | |
1457 | NAOptionDefinition { | |
1458 | name: DEBLOCK_SKIP_OPTION, description: "Loop filter skipping mode", | |
1459 | opt_type: NAOptionDefinitionType::String(Some(&[ | |
1460 | FRAME_SKIP_OPTION_VAL_NONE, | |
1461 | FRAME_SKIP_OPTION_VAL_KEYFRAME, | |
1462 | FRAME_SKIP_OPTION_VAL_INTRA | |
1463 | ])) }, | |
1464 | ]; | |
1465 | ||
1466 | impl NAOptionHandler for H264Decoder { | |
1467 | fn get_supported_options(&self) -> &[NAOptionDefinition] { DECODER_OPTIONS } | |
1468 | fn set_options(&mut self, options: &[NAOption]) { | |
1469 | for option in options.iter() { | |
1470 | for opt_def in DECODER_OPTIONS.iter() { | |
1471 | if opt_def.check(option).is_ok() { | |
1472 | match (option.name, &option.value) { | |
1473 | (FRAME_SKIP_OPTION, NAValue::String(ref str)) => { | |
1474 | if let Ok(smode) = FrameSkipMode::from_str(str) { | |
1475 | self.skip_mode = smode; | |
1476 | } | |
1477 | }, | |
1478 | (DEBLOCK_SKIP_OPTION, NAValue::Bool(val)) => { | |
1479 | self.deblock_skip = *val; | |
1480 | }, | |
1481 | _ => {}, | |
1482 | } | |
1483 | } | |
1484 | } | |
1485 | } | |
1486 | } | |
1487 | fn query_option_value(&self, name: &str) -> Option<NAValue> { | |
1488 | match name { | |
1489 | FRAME_SKIP_OPTION => Some(NAValue::String(self.skip_mode.to_string())), | |
1490 | DEBLOCK_SKIP_OPTION => Some(NAValue::Bool(self.deblock_skip)), | |
1491 | _ => None, | |
1492 | } | |
1493 | } | |
1494 | } | |
1495 | ||
1496 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { | |
1497 | Box::new(H264Decoder::new()) | |
1498 | } | |
1499 | ||
1500 | #[cfg(test)] | |
1501 | mod test { | |
1502 | use nihav_core::codecs::RegisteredDecoders; | |
1503 | use nihav_core::demuxers::RegisteredDemuxers; | |
1504 | use nihav_codec_support::test::dec_video::*; | |
1505 | use crate::itu_register_all_decoders; | |
1506 | use nihav_commonfmt::generic_register_all_demuxers; | |
1507 | ||
1508 | // samples if not specified otherwise come from H.264 conformance suite | |
1509 | mod raw_demux; | |
1510 | mod conformance; | |
1511 | use self::raw_demux::RawH264DemuxerCreator; | |
1512 | ||
1513 | #[test] | |
1514 | fn test_h264_perframe() { | |
1515 | let mut dmx_reg = RegisteredDemuxers::new(); | |
1516 | dmx_reg.add_demuxer(&RawH264DemuxerCreator{}); | |
1517 | generic_register_all_demuxers(&mut dmx_reg); | |
1518 | let mut dec_reg = RegisteredDecoders::new(); | |
1519 | itu_register_all_decoders(&mut dec_reg); | |
1520 | ||
1521 | test_decoding("rawh264", "h264", | |
1522 | "assets/ITU/h264-conformance/CABAST3_Sony_E.jsv", | |
1523 | None, &dmx_reg, &dec_reg, ExpectedTestResult::MD5Frames(vec![ | |
1524 | [0x85fc4b44, 0xc9aefdc9, 0x568d0592, 0x2eccf9a0], | |
1525 | [0xbd8d11bc, 0x97acf592, 0x45a3cdbb, 0xa254a882], | |
1526 | [0xbda0e0b9, 0x9fbe1974, 0x1540b244, 0x46a050ca], | |
1527 | [0x471f0057, 0x125ef3b4, 0x4a87515f, 0xba254bbb], | |
1528 | [0x466a7df2, 0xb392c2a4, 0xed66b68b, 0xfdaad2da], | |
1529 | [0x96334b41, 0x41bac7ef, 0xe87154f1, 0xa5fc3551], | |
1530 | [0x0fd4e9b8, 0x4269bbec, 0x00a1978f, 0xe6224851], | |
1531 | [0x68be82af, 0x856615a7, 0x387a253d, 0x8473e6b9], | |
1532 | [0xc4bed119, 0x14ba7fe0, 0x447cb680, 0x555da4c5], | |
1533 | [0x85d127d6, 0x04b85928, 0x26740281, 0x4d848db5], | |
1534 | [0xe44fe461, 0x0d0b64ce, 0xf191179b, 0xabdab686], | |
1535 | [0x347c8edb, 0x847ad11f, 0x8f16b84e, 0xdc915d75], | |
1536 | [0xeb1364a6, 0x91c9d99d, 0x324f5427, 0xcc9f11a2], | |
1537 | [0x7aeb5a3f, 0xebc9c4dd, 0x8f12c8e4, 0x37a2db97], | |
1538 | [0xa11e5c33, 0x656df4c0, 0x1e8b98d8, 0x1736722f], | |
1539 | [0x239f2ef2, 0xe32b0603, 0x448366bb, 0x9331051c], | |
1540 | [0x1815a1b1, 0xfb7e7cf0, 0xd5c7dd5b, 0x0135a8fb], | |
1541 | [0xea3b85dd, 0xa96e7015, 0xa91c576d, 0x5c127ca1], | |
1542 | [0x1c49148f, 0x6d9e7045, 0x093f0b7c, 0x42c2ebaa], | |
1543 | [0x4b4c2863, 0x95709d8c, 0xeb72e251, 0x096632dc], | |
1544 | [0x727418e5, 0x2c015383, 0x59580212, 0x0302dd99], | |
1545 | [0xbe57dfa4, 0xf2aa7d70, 0xa068ee62, 0x77372861], | |
1546 | [0x2faef43a, 0x73da6654, 0xb9d9c22e, 0xc59520bc], | |
1547 | [0x138cff40, 0x3e6c108a, 0xa981e654, 0x903da85b], | |
1548 | [0xa90454f5, 0x7875d5db, 0xbab234bd, 0xe6ce1193]])); | |
1549 | } | |
1550 | ||
1551 | // mostly static music video downloaded with youtube-dl | |
1552 | #[test] | |
1553 | fn test_h264_real1() { | |
1554 | let mut dmx_reg = RegisteredDemuxers::new(); | |
1555 | dmx_reg.add_demuxer(&RawH264DemuxerCreator{}); | |
1556 | generic_register_all_demuxers(&mut dmx_reg); | |
1557 | let mut dec_reg = RegisteredDecoders::new(); | |
1558 | itu_register_all_decoders(&mut dec_reg); | |
1559 | ||
1560 | test_decoding("mov", "h264", "assets/ITU/1.mp4", | |
1561 | Some(60), &dmx_reg, &dec_reg, | |
1562 | ExpectedTestResult::MD5Frames(vec![ | |
1563 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1564 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1565 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1566 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1567 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1568 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1569 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1570 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1571 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1572 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1573 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1574 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1575 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1576 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1577 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1578 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1579 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1580 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1581 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1582 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1583 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1584 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1585 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1586 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1587 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1588 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1589 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1590 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1591 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1592 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1593 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1594 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1595 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1596 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1597 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1598 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1599 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1600 | [0xf1c88c12, 0x7da871f5, 0xdaf3153f, 0x66e72d72], | |
1601 | [0x3d4765f1, 0x8ac472f6, 0x7ffd13a6, 0xc7a45dae], | |
1602 | [0x60e5e13a, 0xd2d7f239, 0x1a793d71, 0x19f8c190], | |
1603 | [0xdd80c3e4, 0xb1500149, 0x43925280, 0x9e5f3230], | |
1604 | [0x2adf6e64, 0x39012d45, 0x7a776cb5, 0x3df76e84], | |
1605 | [0x44319007, 0xbc837dd2, 0x486b2703, 0x451d0651], | |
1606 | [0x922386ef, 0xaf101e9b, 0xf2094a40, 0xc8c454c0], | |
1607 | [0x0d81e398, 0x04192a56, 0xa31f39d0, 0x5e0a2deb], | |
1608 | [0xcdd144b3, 0xd1c7743e, 0x5753b0f4, 0xc070efa9], | |
1609 | [0xe1c67e39, 0x6065ddaf, 0x576bf9f1, 0x8e6825aa], | |
1610 | [0xaf817b0d, 0xdc6c345a, 0xf7f289c7, 0x6cc482d8], | |
1611 | [0x81dc4bcb, 0xee4fc5e5, 0x9b87c7ef, 0xdd0fb034], | |
1612 | [0x8b07f523, 0x4168799f, 0x990cb270, 0x858b9f2c], | |
1613 | [0x31855a80, 0xadbcc562, 0xe60628be, 0x5f04be09], | |
1614 | [0x9c614acc, 0xbd08a3f4, 0x91b02c45, 0x41899a83], | |
1615 | [0x89d09064, 0xbff810a3, 0x9c674179, 0x305225a6], | |
1616 | [0xba1fc8d3, 0x15d34fae, 0x565d363b, 0x4f4d0604], | |
1617 | [0x1cb15a1b, 0xa0be111e, 0x45cc801f, 0x01a2c691], | |
1618 | [0xd898be48, 0xd19bf58d, 0xe22fe44f, 0x6a2914fb], | |
1619 | [0xec6712af, 0xa13b55c0, 0x2915a746, 0xb29a5c48], | |
1620 | [0x745798fa, 0x4ef0f882, 0x59335c08, 0xb1d9dbb4], | |
1621 | [0x4045b495, 0xdb3d969c, 0x1f0d9220, 0x5a34067b], | |
1622 | [0x94fee093, 0x78ad89b3, 0xf20e882b, 0x941425db], | |
1623 | [0xc3eb1a78, 0x4b4e098a, 0xcbcf9bb4, 0xfd5b5426]])); | |
1624 | } | |
1625 | // a sample downloaded from gfycat.com | |
1626 | #[test] | |
1627 | fn test_h264_real2() { | |
1628 | let mut dmx_reg = RegisteredDemuxers::new(); | |
1629 | dmx_reg.add_demuxer(&RawH264DemuxerCreator{}); | |
1630 | generic_register_all_demuxers(&mut dmx_reg); | |
1631 | let mut dec_reg = RegisteredDecoders::new(); | |
1632 | itu_register_all_decoders(&mut dec_reg); | |
1633 | test_decoding("mov", "h264", "assets/ITU/DimpledSpanishCuckoo-mobile.mp4", | |
1634 | Some(10), &dmx_reg, &dec_reg, | |
1635 | ExpectedTestResult::MD5Frames(vec![ | |
1636 | [0x1addcb8e, 0xde58b857, 0x17222c32, 0x75455fa8], | |
1637 | [0xae63141a, 0x79435b2e, 0xfe606c48, 0xf676da66], | |
1638 | [0xfdb80404, 0x6a288e23, 0x45cc4106, 0xdd5eb57c], | |
1639 | [0xd603a3ff, 0x872dcb9b, 0x43f7a71c, 0x2ad4eecc], | |
1640 | [0x639ed6a5, 0xbb1cfec6, 0x0ee5443a, 0x1694772a], | |
1641 | [0xf8ef3f48, 0x152de238, 0xb1995f9a, 0xf82ad1d5], | |
1642 | [0x604f6265, 0xb9d82f56, 0x21f00cf4, 0xc69c18a7], | |
1643 | [0xd932c16e, 0x25cbf060, 0xcb66543b, 0xfe8a5019], | |
1644 | [0xf2a3dac0, 0x0f4678dd, 0xf64c8228, 0x47f14676], | |
1645 | [0x267041ee, 0x3b6b8b64, 0x8bfe1697, 0x1fba508b], | |
1646 | [0x9f917e72, 0x75d882a9, 0xa5e3e684, 0x4ed87eff]])); | |
1647 | } | |
1648 | } | |
1649 | ||
1650 | pub const I4X4_SCAN: [(u8, u8); 16] = [ | |
1651 | (0,0), (1,0), (0,1), (1,1), (2,0), (3,0), (2,1), (3,1), | |
1652 | (0,2), (1,2), (0,3), (1,3), (2,2), (3,2), (2,3), (3,3) | |
1653 | ]; |