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696e4e20 KS |
1 | /* |
2 | known bugs and limitations: | |
696e4e20 KS |
3 | * wrong slice boundary filtering |
4 | * not fully correct deblock strength selection for P/B-macroblocks | |
5 | * scaling lists for 4x4 blocks | |
6 | */ | |
7 | use nihav_core::codecs::*; | |
8 | use nihav_core::io::byteio::*; | |
9 | use nihav_core::io::bitreader::*; | |
10 | use nihav_core::io::intcode::*; | |
11 | use nihav_codec_support::codecs::{MV, ZERO_MV}; | |
12 | ||
13 | mod types; | |
14 | pub use types::*; | |
15 | mod pic_ref; | |
16 | pub use pic_ref::*; | |
4a1ca15c KS |
17 | #[allow(clippy::identity_op)] |
18 | #[allow(clippy::erasing_op)] | |
19 | #[allow(clippy::many_single_char_names)] | |
20 | #[allow(clippy::range_plus_one)] | |
696e4e20 KS |
21 | mod dsp; |
22 | use dsp::*; | |
23 | mod cabac; | |
24 | use cabac::*; | |
25 | mod cabac_coder; | |
26 | use cabac_coder::*; | |
27 | mod cavlc; | |
28 | use cavlc::*; | |
29 | mod loopfilter; | |
30 | use loopfilter::*; | |
495b7ec0 KS |
31 | mod mb_recon; |
32 | use mb_recon::*; | |
696e4e20 KS |
33 | mod sets; |
34 | use sets::*; | |
35 | mod slice; | |
36 | use slice::*; | |
37 | ||
38 | trait ReadUE { | |
39 | fn read_ue(&mut self) -> DecoderResult<u32>; | |
40 | fn read_te(&mut self, range: u32) -> DecoderResult<u32>; | |
41 | fn read_ue_lim(&mut self, max_val: u32) -> DecoderResult<u32> { | |
42 | let val = self.read_ue()?; | |
43 | validate!(val <= max_val); | |
44 | Ok(val) | |
45 | } | |
46 | fn read_se(&mut self) -> DecoderResult<i32> { | |
47 | let val = self.read_ue()?; | |
48 | if (val & 1) != 0 { | |
49 | Ok (((val >> 1) as i32) + 1) | |
50 | } else { | |
51 | Ok (-((val >> 1) as i32)) | |
52 | } | |
53 | } | |
54 | } | |
55 | ||
56 | impl<'a> ReadUE for BitReader<'a> { | |
57 | fn read_ue(&mut self) -> DecoderResult<u32> { | |
58 | Ok(self.read_code(UintCodeType::GammaP)? - 1) | |
59 | } | |
60 | fn read_te(&mut self, range: u32) -> DecoderResult<u32> { | |
61 | if range == 1 { | |
62 | if self.read_bool()? { | |
63 | Ok(0) | |
64 | } else { | |
65 | Ok(1) | |
66 | } | |
67 | } else { | |
68 | let val = self.read_ue()?; | |
69 | validate!(val <= range); | |
70 | Ok(val) | |
71 | } | |
72 | } | |
73 | } | |
74 | ||
75 | #[derive(Clone,Copy)] | |
76 | pub struct Coeff8x8 { | |
77 | pub coeffs: [i16; 64], | |
78 | } | |
79 | ||
80 | impl Coeff8x8 { | |
81 | fn clear(&mut self) { | |
82 | self.coeffs = [0; 64]; | |
83 | } | |
84 | } | |
85 | ||
86 | impl Default for Coeff8x8 { | |
87 | fn default() -> Self { | |
88 | Self { | |
89 | coeffs: [0; 64], | |
90 | } | |
91 | } | |
92 | } | |
93 | ||
94 | #[derive(Clone,Copy,Default)] | |
95 | pub struct CurrentMBInfo { | |
96 | pub mb_type: MBType, | |
97 | pub sub_mb_type: [SubMBType; 4], | |
98 | pub ipred: [IntraPredMode; 16], | |
99 | pub chroma_ipred: u8, | |
100 | pub luma_ipred: [u8; 16], | |
101 | pub mv_l0: [MV; 16], | |
102 | pub ref_l0: [PicRef; 4], | |
103 | pub mv_l1: [MV; 16], | |
104 | pub ref_l1: [PicRef; 4], | |
105 | pub qp_y: u8, | |
106 | pub cbpy: u8, | |
107 | pub cbpc: u8, | |
108 | pub coeffs: [[i16; 16]; 25], | |
109 | pub coeffs8x8: [Coeff8x8; 4], | |
110 | pub chroma_dc: [[i16; 4]; 2], | |
111 | pub coded: [bool; 25], | |
112 | pub transform_size_8x8: bool, | |
113 | } | |
114 | ||
115 | impl CurrentMBInfo { | |
116 | fn clear_coeffs8x8(&mut self) { | |
117 | for c in self.coeffs8x8.iter_mut() { | |
118 | c.clear(); | |
119 | } | |
120 | } | |
121 | fn can_have_8x8_tx(&self, inference_flag: bool) -> bool { | |
122 | match self.mb_type { | |
123 | MBType::Intra4x4 | MBType::Intra8x8 | MBType::Intra16x16(_, _, _) | MBType::PCM => false, | |
124 | MBType::P8x8 | MBType::P8x8Ref0 | MBType::B8x8 => { | |
125 | for &sub_id in self.sub_mb_type.iter() { | |
126 | match sub_id { | |
127 | SubMBType::P8x8 | | |
128 | SubMBType::B8x8(_) | |
129 | => {}, | |
130 | SubMBType::Direct8x8 | |
131 | => if !inference_flag { return false; }, | |
132 | _ => return false, | |
133 | }; | |
134 | } | |
135 | true | |
136 | }, | |
137 | MBType::Direct => inference_flag, | |
138 | _ => true, | |
139 | } | |
140 | } | |
141 | } | |
142 | ||
143 | fn get_long_term_id(is_idr: bool, slice_hdr: &SliceHeader) -> Option<usize> { | |
144 | if is_idr && !slice_hdr.long_term_reference { | |
145 | None | |
146 | } else { | |
147 | let marking = &slice_hdr.adaptive_ref_pic_marking; | |
148 | for (&op, &arg) in marking.memory_management_control_op.iter().zip(marking.operation_arg.iter()).take(marking.num_ops) { | |
149 | if op == 6 { | |
150 | return Some(arg as usize); | |
151 | } | |
152 | } | |
153 | None | |
154 | } | |
155 | } | |
156 | ||
157 | struct H264Decoder { | |
158 | info: NACodecInfoRef, | |
159 | width: usize, | |
160 | height: usize, | |
161 | num_mbs: usize, | |
162 | nal_len: u8, | |
163 | sps: Vec<SeqParameterSet>, | |
164 | cur_sps: usize, | |
165 | pps: Vec<PicParameterSet>, | |
166 | cur_pps: usize, | |
167 | ||
168 | skip_mode: FrameSkipMode, | |
169 | deblock_skip: bool, | |
170 | ||
171 | is_mbaff: bool, | |
172 | ||
173 | cavlc_cb: CAVLCTables, | |
174 | ||
175 | sstate: SliceState, | |
176 | ||
177 | cur_pic: Option<PictureInfo>, | |
178 | cur_id: u16, | |
179 | has_pic: bool, | |
180 | frame_refs: FrameRefs, | |
181 | ||
182 | temporal_mv: bool, | |
183 | deblock_mode: u8, | |
184 | lf_alpha: i8, | |
185 | lf_beta: i8, | |
186 | is_s: bool, | |
187 | ||
188 | ipcm_buf: [u8; 256 + 64 + 64], | |
189 | ||
2f9923e6 | 190 | mc_dsp: H264MC, |
696e4e20 KS |
191 | |
192 | transform_8x8_mode: bool, | |
193 | } | |
194 | ||
195 | fn unescape_nal(src: &[u8], dst: &mut Vec<u8>) -> usize { | |
196 | let mut off = 0; | |
197 | let mut zrun = 0; | |
37952415 | 198 | dst.clear(); |
696e4e20 KS |
199 | dst.reserve(src.len()); |
200 | while off < src.len() { | |
201 | dst.push(src[off]); | |
202 | if src[off] != 0 { | |
203 | zrun = 0; | |
204 | } else { | |
205 | zrun += 1; | |
206 | if zrun == 2 && off + 1 < src.len() && src[off + 1] == 0x03 { | |
207 | zrun = 0; | |
208 | off += 1; | |
209 | } | |
210 | if zrun >= 3 && off + 1 < src.len() && src[off + 1] == 0x01 { | |
211 | off -= 3; | |
212 | dst.truncate(off); | |
213 | break; | |
214 | } | |
215 | } | |
216 | off += 1; | |
217 | } | |
218 | off | |
219 | } | |
220 | ||
221 | impl H264Decoder { | |
222 | fn new() -> Self { | |
223 | let avg_vi = NAVideoInfo { width: 32, height: 32, flipped: false, format: YUV420_FORMAT, bits: 12 }; | |
224 | let avg_buf = alloc_video_buffer(avg_vi, 4).unwrap().get_vbuf().unwrap(); | |
225 | H264Decoder{ | |
226 | info: NACodecInfoRef::default(), | |
227 | width: 0, | |
228 | height: 0, | |
229 | num_mbs: 0, | |
230 | nal_len: 0, | |
231 | sps: Vec::with_capacity(1), | |
232 | cur_sps: 0, | |
233 | pps: Vec::with_capacity(3), | |
234 | cur_pps: 0, | |
235 | ||
236 | skip_mode: FrameSkipMode::default(), | |
237 | deblock_skip: false, | |
238 | ||
239 | is_mbaff: false, | |
240 | ||
241 | cavlc_cb: CAVLCTables::new(), | |
242 | ||
243 | sstate: SliceState::new(), | |
244 | cur_pic: None, | |
245 | cur_id: 0, | |
246 | has_pic: false, | |
247 | frame_refs: FrameRefs::new(), | |
248 | ||
249 | temporal_mv: false, | |
250 | deblock_mode: 0, | |
251 | lf_alpha: 0, | |
252 | lf_beta: 0, | |
253 | is_s: false, | |
254 | ||
255 | ipcm_buf: [0; 256 + 64 + 64], | |
256 | ||
2f9923e6 | 257 | mc_dsp: H264MC::new(avg_buf), |
696e4e20 KS |
258 | |
259 | transform_8x8_mode: false, | |
260 | } | |
261 | } | |
262 | fn handle_nal(&mut self, src: &[u8], supp: &mut NADecoderSupport, skip_decoding: bool) -> DecoderResult<()> { | |
263 | validate!(!src.is_empty()); | |
264 | validate!((src[0] & 0x80) == 0); | |
265 | let nal_ref_idc = src[0] >> 5; | |
266 | let nal_unit_type = src[0] & 0x1F; | |
267 | ||
268 | let mut full_size = src.len() * 8; | |
269 | for &byte in src.iter().rev() { | |
270 | if byte == 0 { | |
271 | full_size -= 8; | |
272 | } else { | |
273 | full_size -= (byte.trailing_zeros() + 1) as usize; | |
274 | break; | |
275 | } | |
276 | } | |
277 | validate!(full_size > 0); | |
278 | match nal_unit_type { | |
279 | 1 | 5 if !skip_decoding => { | |
280 | let is_idr = nal_unit_type == 5; | |
281 | let mut br = BitReader::new(&src[..(full_size + 7)/8], BitReaderMode::BE); | |
282 | br.skip(8)?; | |
283 | ||
284 | let slice_hdr = parse_slice_header(&mut br, &self.sps, &self.pps, is_idr, nal_ref_idc)?; | |
285 | validate!(br.tell() < full_size); | |
286 | let full_id; | |
287 | if slice_hdr.first_mb_in_slice == 0 { | |
288 | validate!(self.cur_pic.is_none()); | |
289 | for (i, pps) in self.pps.iter().enumerate() { | |
290 | if pps.pic_parameter_set_id == slice_hdr.pic_parameter_set_id { | |
291 | self.cur_pps = i; | |
292 | break; | |
293 | } | |
294 | } | |
295 | for (i, sps) in self.sps.iter().enumerate() { | |
296 | if sps.seq_parameter_set_id == self.pps[self.cur_pps].seq_parameter_set_id { | |
297 | self.cur_sps = i; | |
298 | break; | |
299 | } | |
300 | } | |
301 | ||
302 | full_id = self.frame_refs.calc_picture_num(&slice_hdr, is_idr, nal_ref_idc, &self.sps[self.cur_sps]); | |
303 | ||
304 | let sps = &self.sps[self.cur_sps]; | |
305 | if sps.chroma_format_idc != 1 || sps.bit_depth_luma != 8 || sps.bit_depth_chroma != 8 { | |
306 | println!(" chroma fmt {} bits {}/{}", sps.chroma_format_idc, sps.bit_depth_luma, sps.bit_depth_chroma); | |
307 | return Err(DecoderError::NotImplemented); | |
308 | } | |
309 | //let pps = &self.pps[self.cur_pps]; | |
310 | ||
311 | if is_idr { | |
312 | self.frame_refs.clear_refs(); | |
313 | } | |
314 | ||
315 | self.width = sps.pic_width_in_mbs << 4; | |
316 | self.height = sps.pic_height_in_mbs << 4; | |
317 | self.num_mbs = sps.pic_width_in_mbs * sps.pic_height_in_mbs; | |
306c604f | 318 | self.mc_dsp.set_dimensions(self.width, self.height); |
696e4e20 KS |
319 | |
320 | self.is_mbaff = sps.mb_adaptive_frame_field && !slice_hdr.field_pic; | |
321 | if self.is_mbaff { | |
322 | println!("MBAFF"); | |
323 | return Err(DecoderError::NotImplemented); | |
324 | } | |
325 | if !sps.frame_mbs_only { | |
326 | println!("PAFF?"); | |
327 | return Err(DecoderError::NotImplemented); | |
328 | } | |
329 | ||
330 | //if slice_hdr.slice_type.is_b() { return Ok(()); } | |
331 | self.cur_id = full_id as u16; | |
332 | } else { | |
333 | if let Some(ref mut pic) = self.cur_pic { | |
334 | validate!(pic.cur_mb == slice_hdr.first_mb_in_slice); | |
335 | let new_type = slice_hdr.slice_type.to_frame_type(); | |
336 | pic.pic_type = match (pic.pic_type, new_type) { | |
337 | (FrameType::I, _) => new_type, | |
338 | (_, FrameType::B) => FrameType::B, | |
339 | _ => pic.pic_type, | |
340 | }; | |
341 | full_id = pic.full_id; | |
342 | } else { | |
343 | return Ok(());//Err(DecoderError::InvalidData); | |
344 | } | |
345 | validate!(self.cur_pps < self.pps.len() && self.pps[self.cur_pps].pic_parameter_set_id == slice_hdr.pic_parameter_set_id); | |
346 | } | |
347 | ||
348 | let sps = &self.sps[self.cur_sps]; | |
349 | let pps = &self.pps[self.cur_pps]; | |
350 | ||
351 | self.temporal_mv = !slice_hdr.direct_spatial_mv_pred; | |
352 | self.is_s = slice_hdr.slice_type == SliceType::SI || slice_hdr.slice_type == SliceType::SP; | |
353 | self.deblock_mode = slice_hdr.disable_deblocking_filter_idc; | |
354 | self.lf_alpha = slice_hdr.slice_alpha_c0_offset; | |
355 | self.lf_beta = slice_hdr.slice_beta_offset; | |
356 | ||
357 | self.frame_refs.select_refs(sps, &slice_hdr, full_id); | |
358 | ||
359 | if slice_hdr.adaptive_ref_pic_marking_mode { | |
360 | 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)?; | |
361 | } | |
362 | if slice_hdr.first_mb_in_slice == 0 { | |
363 | let ret = supp.pool_u8.get_free(); | |
364 | if ret.is_none() { | |
365 | return Err(DecoderError::AllocError); | |
366 | } | |
367 | let tmp_vinfo = NAVideoInfo::new(self.width, self.height, false, YUV420_FORMAT); | |
368 | let mut buf = ret.unwrap(); | |
369 | if buf.get_info() != tmp_vinfo { | |
370 | supp.pool_u8.reset(); | |
371 | supp.pool_u8.prealloc_video(tmp_vinfo, 4)?; | |
372 | let ret = supp.pool_u8.get_free(); | |
373 | if ret.is_none() { | |
374 | return Err(DecoderError::AllocError); | |
375 | } | |
376 | buf = ret.unwrap(); | |
377 | } | |
378 | self.cur_pic = Some(PictureInfo { | |
379 | id: slice_hdr.frame_num, | |
380 | full_id, | |
381 | pic_type: slice_hdr.slice_type.to_frame_type(), | |
382 | buf, | |
383 | cur_mb: 0, | |
384 | is_ref: nal_ref_idc != 0, | |
385 | long_term: get_long_term_id(is_idr, &slice_hdr), | |
386 | mv_info: FrameMV::new(sps.pic_width_in_mbs, sps.pic_height_in_mbs), | |
387 | }); | |
388 | } | |
389 | ||
390 | self.transform_8x8_mode = pps.transform_8x8_mode; | |
391 | ||
392 | self.sstate.reset(sps.pic_width_in_mbs, sps.pic_height_in_mbs, slice_hdr.first_mb_in_slice); | |
393 | if !pps.entropy_coding_mode { | |
394 | self.has_pic = self.decode_slice_cavlc(&mut br, &slice_hdr, full_size)?; | |
395 | } else { | |
396 | br.align(); | |
397 | let start = (br.tell() / 8) as usize; | |
398 | let csrc = &src[start..]; | |
399 | validate!(csrc.len() >= 2); | |
400 | let mut cabac = CABAC::new(csrc, slice_hdr.slice_type, slice_hdr.slice_qp, slice_hdr.cabac_init_idc as usize)?; | |
401 | self.has_pic = self.decode_slice_cabac(&mut cabac, &slice_hdr)?; | |
402 | } | |
696e4e20 KS |
403 | }, |
404 | 2 => { // slice data partition A | |
405 | //slice header | |
406 | //slice id = read_ue() | |
407 | //cat 2 slice data (all but MB layer residual) | |
408 | return Err(DecoderError::NotImplemented); | |
409 | }, | |
410 | 3 => { // slice data partition B | |
411 | //slice id = read_ue() | |
412 | //if pps.redundant_pic_cnt_present { redundant_pic_cnt = read_ue() } | |
413 | //cat 3 slice data (MB layer residual) | |
414 | return Err(DecoderError::NotImplemented); | |
415 | }, | |
416 | 4 => { // slice data partition C | |
417 | //slice id = read_ue() | |
418 | //if pps.redundant_pic_cnt_present { redundant_pic_cnt = read_ue() } | |
419 | //cat 4 slice data (MB layer residual) | |
420 | return Err(DecoderError::NotImplemented); | |
421 | }, | |
422 | 6 => {}, //SEI | |
423 | 7 => { | |
424 | let sps = parse_sps(&src[1..])?; | |
425 | self.sps.push(sps); | |
426 | }, | |
427 | 8 => { | |
428 | validate!(full_size >= 8 + 16); | |
429 | let pps = parse_pps(&src[1..], &self.sps, full_size - 8)?; | |
430 | let mut found = false; | |
431 | for stored_pps in self.pps.iter_mut() { | |
432 | if stored_pps.pic_parameter_set_id == pps.pic_parameter_set_id { | |
433 | *stored_pps = pps.clone(); | |
434 | found = true; | |
435 | break; | |
436 | } | |
437 | } | |
438 | if !found { | |
439 | self.pps.push(pps); | |
440 | } | |
441 | }, | |
442 | 9 => { // access unit delimiter | |
443 | }, | |
444 | 10 => {}, //end of sequence | |
445 | 11 => {}, //end of stream | |
446 | 12 => {}, //filler | |
447 | _ => {}, | |
448 | }; | |
449 | ||
450 | Ok(()) | |
451 | } | |
d85f94f7 | 452 | fn pred_mv(sstate: &mut SliceState, frame_refs: &FrameRefs, mb_info: &mut CurrentMBInfo, cur_id: u16, temporal_mv: bool, direct_8x8: bool) { |
696e4e20 KS |
453 | let mb_type = mb_info.mb_type; |
454 | if !mb_type.is_4x4() { | |
455 | let (pw, ph) = mb_type.size(); | |
456 | let mut xoff = 0; | |
457 | let mut yoff = 0; | |
458 | if mb_type == MBType::Direct || mb_type == MBType::BSkip { | |
d85f94f7 | 459 | sstate.predict_direct_mb(frame_refs, temporal_mv, direct_8x8, cur_id); |
696e4e20 KS |
460 | } |
461 | for part in 0..mb_type.num_parts() { | |
462 | if !mb_type.is_l1(part) { | |
463 | match mb_type { | |
464 | MBType::PSkip => sstate.predict_pskip(), | |
465 | MBType::BSkip | MBType::Direct => { | |
466 | }, | |
467 | _ => { | |
468 | sstate.predict(xoff, yoff, pw, ph, 0, | |
469 | mb_info.mv_l0[part], mb_info.ref_l0[part]); | |
470 | }, | |
471 | }; | |
472 | } | |
473 | if !mb_type.is_l0(part) && mb_type != MBType::BSkip && mb_type != MBType::Direct { | |
474 | sstate.predict(xoff, yoff, pw, ph, 1, mb_info.mv_l1[part], mb_info.ref_l1[part]); | |
475 | } | |
476 | if pw != 16 { | |
477 | xoff += pw; | |
478 | } else { | |
479 | yoff += ph; | |
480 | } | |
481 | } | |
482 | } else { | |
483 | for part in 0..4 { | |
484 | let sub_type = mb_info.sub_mb_type[part]; | |
485 | let mut xoff = (part & 1) * 8; | |
486 | let mut yoff = (part & 2) * 4; | |
487 | let orig_x = xoff; | |
488 | let (pw, ph) = sub_type.size(); | |
489 | for subpart in 0..sub_type.num_parts() { | |
490 | if sub_type != SubMBType::Direct8x8 { | |
491 | if !sub_type.is_l1() { | |
492 | sstate.predict(xoff, yoff, pw, ph, 0, mb_info.mv_l0[part * 4 + subpart], mb_info.ref_l0[part]); | |
493 | } | |
494 | if !sub_type.is_l0() { | |
495 | sstate.predict(xoff, yoff, pw, ph, 1, mb_info.mv_l1[part * 4 + subpart], mb_info.ref_l1[part]); | |
496 | } | |
497 | } else { | |
498 | for sblk in 0..4 { | |
d85f94f7 | 499 | sstate.predict_direct_sub(frame_refs, temporal_mv, direct_8x8, cur_id, (xoff / 4) + (sblk & 1) + (yoff / 4) * 4 + (sblk & 2) * 2); |
696e4e20 KS |
500 | } |
501 | } | |
502 | xoff += pw; | |
503 | if xoff == orig_x + 8 { | |
504 | xoff -= 8; | |
505 | yoff += ph; | |
506 | } | |
507 | } | |
508 | } | |
509 | } | |
510 | } | |
b7c882c1 | 511 | #[allow(clippy::cognitive_complexity)] |
495b7ec0 | 512 | fn handle_macroblock(&mut self, slice_hdr: &SliceHeader, mb_info: &mut CurrentMBInfo) { |
696e4e20 KS |
513 | let pps = &self.pps[self.cur_pps]; |
514 | ||
515 | let qp_y = mb_info.qp_y; | |
516 | let qpr = ((qp_y as i8) + pps.chroma_qp_index_offset).max(0).min(51) as usize; | |
517 | let qp_u = CHROMA_QUANTS[qpr]; | |
518 | let qpb = ((qp_y as i8) + pps.second_chroma_qp_index_offset).max(0).min(51) as usize; | |
519 | let qp_v = CHROMA_QUANTS[qpb]; | |
520 | ||
521 | let tx_bypass = qp_y == 0 && self.sps[self.cur_sps].qpprime_y_zero_transform_bypass; | |
522 | ||
523 | self.sstate.get_cur_mb().mb_type = mb_info.mb_type.into(); | |
524 | if mb_info.mb_type != MBType::PCM { | |
525 | self.sstate.get_cur_mb().qp_y = qp_y; | |
526 | self.sstate.get_cur_mb().qp_u = qp_u; | |
527 | self.sstate.get_cur_mb().qp_v = qp_v; | |
528 | self.sstate.get_cur_mb().transform_8x8 = mb_info.transform_size_8x8; | |
529 | } | |
530 | let has_dc = mb_info.mb_type.is_intra16x16() && mb_info.coded[24]; | |
531 | if has_dc { | |
532 | idct_luma_dc(&mut mb_info.coeffs[24], qp_y); | |
533 | for i in 0..16 { | |
534 | mb_info.coeffs[i][0] = mb_info.coeffs[24][i]; | |
535 | } | |
536 | } | |
537 | if !mb_info.transform_size_8x8 { | |
538 | let quant_dc = !mb_info.mb_type.is_intra16x16(); | |
539 | for i in 0..16 { | |
540 | if mb_info.coded[i] { | |
541 | if !tx_bypass { | |
542 | idct(&mut mb_info.coeffs[i], qp_y, quant_dc); | |
543 | } | |
544 | } else if has_dc { | |
545 | if !tx_bypass { | |
546 | idct_dc(&mut mb_info.coeffs[i], qp_y, quant_dc); | |
547 | } | |
548 | mb_info.coded[i] = true; | |
549 | } | |
550 | } | |
551 | } else { | |
552 | for i in 0..4 { | |
553 | if mb_info.coded[(i & 1) * 2 + (i & 2) * 4] && !tx_bypass { | |
554 | dequant8x8(&mut mb_info.coeffs8x8[i].coeffs, &pps.scaling_list_8x8[!mb_info.mb_type.is_intra() as usize]); | |
555 | idct8x8(&mut mb_info.coeffs8x8[i].coeffs, qp_y); | |
556 | } | |
557 | } | |
558 | } | |
559 | for chroma in 0..2 { | |
560 | let qp_c = if chroma == 0 { qp_u } else { qp_v }; | |
561 | if mb_info.cbpc != 0 { | |
562 | chroma_dc_transform(&mut mb_info.chroma_dc[chroma], qp_c); | |
563 | } | |
564 | for i in 0..4 { | |
565 | let blk_no = 16 + chroma * 4 + i; | |
566 | mb_info.coeffs[blk_no][0] = mb_info.chroma_dc[chroma][i]; | |
567 | if mb_info.coded[blk_no] { | |
568 | idct(&mut mb_info.coeffs[blk_no], qp_c, false); | |
569 | } else if mb_info.coeffs[blk_no][0] != 0 { | |
570 | idct_dc(&mut mb_info.coeffs[blk_no], qp_c, false); | |
571 | mb_info.coded[blk_no] = true; | |
572 | } | |
573 | } | |
574 | } | |
575 | if !pps.entropy_coding_mode || mb_info.mb_type.is_skip() || mb_info.mb_type.is_intra() { | |
576 | self.sstate.reset_mb_mv(); | |
577 | } | |
578 | if !mb_info.mb_type.is_intra() { | |
d85f94f7 | 579 | Self::pred_mv(&mut self.sstate, &self.frame_refs, mb_info, self.cur_id, self.temporal_mv, self.sps[self.cur_sps].direct_8x8_inference); |
696e4e20 KS |
580 | } |
581 | if !pps.constrained_intra_pred && mb_info.mb_type != MBType::Intra4x4 && mb_info.mb_type != MBType::Intra8x8 { | |
582 | self.sstate.fill_ipred(IntraPredMode::DC); | |
583 | } | |
584 | ||
585 | let xpos = self.sstate.mb_x * 16; | |
586 | let ypos = self.sstate.mb_y * 16; | |
587 | if let Some(ref mut pic) = self.cur_pic { | |
588 | let mut frm = NASimpleVideoFrame::from_video_buf(&mut pic.buf).unwrap(); | |
495b7ec0 KS |
589 | if mb_info.mb_type != MBType::PCM { |
590 | let weight_mode = if self.pps[self.cur_pps].weighted_pred && slice_hdr.slice_type.is_p() { | |
591 | 1 | |
592 | } else if slice_hdr.slice_type.is_b() { | |
593 | self.pps[self.cur_pps].weighted_bipred_idc | |
696e4e20 | 594 | } else { |
495b7ec0 KS |
595 | 0 |
596 | }; | |
42005e25 | 597 | recon_mb(&mut frm, slice_hdr, mb_info, &mut self.sstate, &self.frame_refs, &mut self.mc_dsp, weight_mode); |
495b7ec0 | 598 | } else { |
696e4e20 KS |
599 | 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)) { |
600 | dline[..16].copy_from_slice(src); | |
601 | } | |
602 | 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)) { | |
603 | dline[..8].copy_from_slice(src); | |
604 | } | |
605 | 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)) { | |
606 | dline[..8].copy_from_slice(src); | |
607 | } | |
696e4e20 KS |
608 | } |
609 | /*match mb_info.mb_type { | |
610 | MBType::BSkip | MBType::Direct | MBType::B16x16(_) | MBType::B16x8(_, _) | MBType::B8x16(_, _) | MBType::B8x8 => { | |
611 | let dstride = frm.stride[0]; | |
612 | let dst = &mut frm.data[frm.offset[0] + self.sstate.mb_x * 16 + self.sstate.mb_y * 16 * dstride..]; | |
613 | for el in dst[..16].iter_mut() { *el = 255; } | |
614 | for row in dst.chunks_mut(dstride).skip(1).take(15) { | |
615 | row[0] = 255; | |
616 | } | |
617 | }, | |
618 | _ => {}, | |
619 | };*/ | |
22de733b | 620 | self.sstate.save_ipred_context(&frm); |
696e4e20 KS |
621 | } |
622 | if let Some(ref mut pic) = self.cur_pic { | |
623 | let mv_info = &mut pic.mv_info; | |
624 | let mb_pos = self.sstate.mb_x + self.sstate.mb_y * mv_info.mb_stride; | |
625 | let mut mb = FrameMBInfo::new(); | |
626 | mb.mb_type = mb_info.mb_type.into(); | |
627 | for blk4 in 0..16 { | |
628 | mb.mv[blk4] = self.sstate.get_cur_blk4(blk4).mv; | |
629 | } | |
630 | for blk8 in 0..4 { | |
631 | mb.ref_poc[blk8] = self.frame_refs.map_refs(self.sstate.get_cur_blk8(blk8).ref_idx); | |
632 | mb.ref_idx[blk8] = self.sstate.get_cur_blk8(blk8).ref_idx; | |
633 | } | |
634 | mv_info.mbs[mb_pos] = mb; | |
635 | } | |
22de733b KS |
636 | if !self.deblock_skip && self.deblock_mode != 1 { |
637 | self.sstate.fill_deblock(&self.frame_refs, self.deblock_mode, self.is_s); | |
696e4e20 KS |
638 | if let Some(ref mut pic) = self.cur_pic { |
639 | let mut frm = NASimpleVideoFrame::from_video_buf(&mut pic.buf).unwrap(); | |
22de733b | 640 | loop_filter_mb(&mut frm, &self.sstate, self.lf_alpha, self.lf_beta); |
696e4e20 KS |
641 | } |
642 | } | |
643 | self.sstate.next_mb(); | |
644 | } | |
696e4e20 KS |
645 | fn decode_slice_cavlc(&mut self, br: &mut BitReader, slice_hdr: &SliceHeader, full_size: usize) -> DecoderResult<bool> { |
646 | const INTRA_CBP: [u8; 48] = [ | |
647 | 47, 31, 15, 0, 23, 27, 29, 30, 7, 11, 13, 14, 39, 43, 45, 46, | |
648 | 16, 3, 5, 10, 12, 19, 21, 26, 28, 35, 37, 42, 44, 1, 2, 4, | |
649 | 8, 17, 18, 20, 24, 6, 9, 22, 25, 32, 33, 34, 36, 40, 38, 41 | |
650 | ]; | |
651 | const INTER_CBP: [u8; 48] = [ | |
652 | 0, 16, 1, 2, 4, 8, 32, 3, 5, 10, 12, 15, 47, 7, 11, 13, | |
653 | 14, 6, 9, 31, 35, 37, 42, 44, 33, 34, 36, 40, 39, 43, 45, 46, | |
654 | 17, 18, 20, 24, 19, 21, 26, 28, 23, 27, 29, 30, 22, 25, 38, 41 | |
655 | ]; | |
656 | ||
657 | let mut mb_idx = slice_hdr.first_mb_in_slice as usize; | |
42005e25 | 658 | let mut mb_info = CurrentMBInfo { qp_y: slice_hdr.slice_qp, ..Default::default() }; |
696e4e20 KS |
659 | let skip_type = if slice_hdr.slice_type.is_p() { MBType::PSkip } else { MBType::BSkip }; |
660 | while br.tell() < full_size && mb_idx < self.num_mbs { | |
661 | mb_info.coded = [false; 25]; | |
662 | mb_info.ref_l0 = [ZERO_REF; 4]; | |
663 | mb_info.ref_l1 = [ZERO_REF; 4]; | |
664 | mb_info.mv_l0 = [ZERO_MV; 16]; | |
665 | mb_info.mv_l1 = [ZERO_MV; 16]; | |
666 | mb_info.chroma_dc = [[0; 4]; 2]; | |
667 | mb_info.cbpy = 0; | |
668 | mb_info.cbpc = 0; | |
669 | ||
670 | if !slice_hdr.slice_type.is_intra() { | |
671 | let mb_skip_run = br.read_ue()? as usize; | |
672 | validate!(mb_idx + mb_skip_run <= self.num_mbs); | |
673 | mb_info.mb_type = skip_type; | |
674 | for _ in 0..mb_skip_run { | |
495b7ec0 | 675 | self.handle_macroblock(slice_hdr, &mut mb_info); |
696e4e20 KS |
676 | mb_idx += 1; |
677 | } | |
678 | if mb_idx == self.num_mbs || br.tell() >= full_size { | |
679 | break; | |
680 | } | |
681 | } | |
682 | if br.tell() < full_size { | |
683 | if self.is_mbaff && ((mb_idx & 1) == 0) { | |
684 | let _mb_field_decoding = br.read_bool()?; | |
685 | } | |
686 | let mut mb_type = decode_mb_type_cavlc(br, slice_hdr)?; | |
687 | mb_info.mb_type = mb_type; | |
688 | mb_info.transform_size_8x8 = false; | |
689 | if mb_type == MBType::PCM { | |
690 | br.align(); | |
691 | for pix in self.ipcm_buf[..256 + 64 + 64].iter_mut() { | |
692 | *pix = br.read(8)? as u8; | |
693 | } | |
694 | self.sstate.fill_ncoded(16); | |
695 | } else { | |
696 | if self.transform_8x8_mode && mb_type == MBType::Intra4x4 { | |
697 | mb_info.transform_size_8x8 = br.read_bool()?; | |
698 | if mb_info.transform_size_8x8 { | |
699 | mb_type = MBType::Intra8x8; | |
700 | mb_info.mb_type = MBType::Intra8x8; | |
701 | } | |
702 | } | |
703 | decode_mb_pred_cavlc(br, slice_hdr, mb_type, &mut self.sstate, &mut mb_info)?; | |
704 | let (cbpy, cbpc) = if let MBType::Intra16x16(_, cbpy, cbpc) = mb_type { | |
705 | (cbpy, cbpc) | |
706 | } else { | |
707 | let cbp_id = br.read_ue()? as usize; | |
708 | validate!(cbp_id < INTRA_CBP.len()); | |
709 | let cbp = if mb_type == MBType::Intra4x4 || mb_type == MBType::Intra8x8 { | |
710 | INTRA_CBP[cbp_id] | |
711 | } else { | |
712 | INTER_CBP[cbp_id] | |
713 | }; | |
714 | if self.transform_8x8_mode && (cbp & 0xF) != 0 && mb_info.can_have_8x8_tx(self.sps[self.cur_sps].direct_8x8_inference) { | |
715 | mb_info.transform_size_8x8 = br.read_bool()?; | |
716 | } | |
717 | ((cbp & 0xF), (cbp >> 4)) | |
718 | }; | |
719 | mb_info.cbpy = cbpy; | |
720 | mb_info.cbpc = cbpc; | |
721 | self.sstate.get_cur_mb().cbp = (cbpc << 4) | cbpy; | |
722 | if cbpy != 0 || cbpc != 0 || mb_type.is_intra16x16() { | |
723 | let mb_qp_delta = br.read_se()?; | |
724 | validate!(mb_qp_delta >= -26 && mb_qp_delta <= 25); | |
725 | let new_qp = mb_qp_delta + i32::from(mb_info.qp_y); | |
726 | mb_info.qp_y = if new_qp < 0 { | |
727 | (new_qp + 52) as u8 | |
728 | } else if new_qp >= 52 { | |
729 | (new_qp - 52) as u8 | |
730 | } else { | |
731 | new_qp as u8 | |
732 | }; | |
733 | mb_info.coeffs = [[0; 16]; 25]; | |
734 | if self.transform_8x8_mode { | |
735 | mb_info.clear_coeffs8x8(); | |
736 | } | |
737 | mb_info.chroma_dc = [[0; 4]; 2]; | |
738 | decode_residual_cavlc(br, &mut self.sstate, &mut mb_info, &self.cavlc_cb)?; | |
739 | } | |
740 | } | |
495b7ec0 | 741 | self.handle_macroblock(slice_hdr, &mut mb_info); |
696e4e20 KS |
742 | } |
743 | mb_idx += 1; | |
744 | } | |
745 | if let Some(ref mut pic) = self.cur_pic { | |
746 | pic.cur_mb = mb_idx; | |
747 | } | |
748 | Ok(mb_idx == self.num_mbs) | |
749 | } | |
750 | fn decode_slice_cabac(&mut self, cabac: &mut CABAC, slice_hdr: &SliceHeader) -> DecoderResult<bool> { | |
751 | let mut mb_idx = slice_hdr.first_mb_in_slice as usize; | |
752 | let mut prev_mb_skipped = false; | |
753 | let skip_type = if slice_hdr.slice_type.is_p() { MBType::PSkip } else { MBType::BSkip }; | |
754 | let mut last_qp_diff = false; | |
755 | ||
42005e25 | 756 | let mut mb_info = CurrentMBInfo { qp_y: slice_hdr.slice_qp, ..Default::default() }; |
696e4e20 KS |
757 | |
758 | while mb_idx < self.num_mbs { | |
759 | mb_info.coded = [false; 25]; | |
760 | mb_info.ref_l0 = [ZERO_REF; 4]; | |
761 | mb_info.ref_l1 = [ZERO_REF; 4]; | |
762 | mb_info.mv_l0 = [ZERO_MV; 16]; | |
763 | mb_info.mv_l1 = [ZERO_MV; 16]; | |
764 | mb_info.chroma_dc = [[0; 4]; 2]; | |
765 | mb_info.cbpy = 0; | |
766 | mb_info.cbpc = 0; | |
767 | let mb_skip = cabac_decode_mbskip(cabac, &self.sstate, slice_hdr); | |
768 | if !mb_skip { | |
769 | if self.is_mbaff && (((mb_idx & 1) == 0) || (prev_mb_skipped && ((mb_idx & 1) == 1))) { | |
770 | let _mb_field_decoding = cabac.decode_bit(70); | |
771 | } | |
42005e25 | 772 | let mut mb_type = cabac_decode_mb_type(cabac, slice_hdr, &self.sstate); |
696e4e20 KS |
773 | mb_info.mb_type = mb_type; |
774 | mb_info.transform_size_8x8 = false; | |
775 | if mb_type == MBType::PCM { | |
776 | let ipcm_size = 256 + 64 + 64; | |
777 | validate!(cabac.pos + ipcm_size <= cabac.src.len()); | |
778 | self.ipcm_buf[..ipcm_size].copy_from_slice(&cabac.src[cabac.pos..][..ipcm_size]); | |
779 | cabac.pos += ipcm_size; | |
780 | cabac.reinit()?; | |
781 | last_qp_diff = false; | |
782 | } else { | |
783 | if self.transform_8x8_mode && mb_type == MBType::Intra4x4 { | |
784 | let mut ctx = 0; | |
785 | if self.sstate.get_top_mb().transform_8x8 { | |
786 | ctx += 1; | |
787 | } | |
788 | if self.sstate.get_left_mb().transform_8x8 { | |
789 | ctx += 1; | |
790 | } | |
791 | mb_info.transform_size_8x8 = cabac.decode_bit(399 + ctx); | |
792 | if mb_info.transform_size_8x8 { | |
793 | mb_type = MBType::Intra8x8; | |
794 | mb_info.mb_type = MBType::Intra8x8; | |
795 | } | |
796 | } | |
797 | decode_mb_pred_cabac(cabac, slice_hdr, mb_type, &mut self.sstate, &mut mb_info); | |
798 | let (cbpy, cbpc) = if let MBType::Intra16x16(_, cbpy, cbpc) = mb_type { | |
799 | (cbpy, cbpc) | |
800 | } else { | |
801 | decode_cbp_cabac(cabac, &self.sstate) | |
802 | }; | |
803 | if self.transform_8x8_mode && cbpy != 0 && mb_info.can_have_8x8_tx(self.sps[self.cur_sps].direct_8x8_inference) { | |
804 | let mut ctx = 0; | |
805 | if self.sstate.get_top_mb().transform_8x8 { | |
806 | ctx += 1; | |
807 | } | |
808 | if self.sstate.get_left_mb().transform_8x8 { | |
809 | ctx += 1; | |
810 | } | |
811 | mb_info.transform_size_8x8 = cabac.decode_bit(399 + ctx); | |
812 | } | |
813 | if mb_type.is_intra() { | |
814 | self.sstate.get_cur_mb().cmode = mb_info.chroma_ipred; | |
815 | } | |
816 | mb_info.cbpy = cbpy; | |
817 | mb_info.cbpc = cbpc; | |
818 | self.sstate.get_cur_mb().cbp = (cbpc << 4) | cbpy; | |
819 | if cbpy != 0 || cbpc != 0 || mb_type.is_intra16x16() { | |
820 | let mb_qp_delta = decode_mb_qp_delta_cabac(cabac, last_qp_diff as usize); | |
821 | validate!(mb_qp_delta >= -26 && mb_qp_delta <= 25); | |
822 | last_qp_diff = mb_qp_delta != 0; | |
823 | let new_qp = mb_qp_delta + i32::from(mb_info.qp_y); | |
824 | mb_info.qp_y = if new_qp < 0 { | |
825 | (new_qp + 52) as u8 | |
826 | } else if new_qp >= 52 { | |
827 | (new_qp - 52) as u8 | |
828 | } else { | |
829 | new_qp as u8 | |
830 | }; | |
831 | mb_info.coeffs = [[0; 16]; 25]; | |
832 | if self.transform_8x8_mode { | |
833 | mb_info.clear_coeffs8x8(); | |
834 | } | |
835 | mb_info.chroma_dc = [[0; 4]; 2]; | |
836 | decode_residual_cabac(cabac, &mut self.sstate, &mut mb_info); | |
837 | } else { | |
838 | last_qp_diff = false; | |
839 | } | |
840 | } | |
841 | } else { | |
842 | mb_info.mb_type = skip_type; | |
843 | mb_info.transform_size_8x8 = false; | |
844 | last_qp_diff = false; | |
845 | } | |
495b7ec0 | 846 | self.handle_macroblock(slice_hdr, &mut mb_info); |
696e4e20 KS |
847 | prev_mb_skipped = mb_skip; |
848 | if !(self.is_mbaff && ((mb_idx & 1) == 0)) && cabac.decode_terminate() { | |
849 | if let Some(ref mut pic) = self.cur_pic { | |
850 | pic.cur_mb = mb_idx + 1; | |
851 | } | |
852 | return Ok(mb_idx + 1 == self.num_mbs); | |
853 | } | |
854 | mb_idx += 1; | |
855 | } | |
856 | Err(DecoderError::InvalidData) | |
857 | } | |
858 | } | |
859 | ||
860 | impl NADecoder for H264Decoder { | |
861 | fn init(&mut self, supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { | |
862 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { | |
863 | let fmt = YUV420_FORMAT; | |
864 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, fmt)); | |
865 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref(); | |
866 | ||
867 | let edata = info.get_extradata().unwrap(); | |
868 | //print!("edata:"); for &el in edata.iter() { print!(" {:02X}", el); } println!(); | |
869 | if edata.len() > 11 && &edata[0..4] == b"avcC" { | |
870 | let mut mr = MemoryReader::new_read(edata.as_slice()); | |
871 | let mut br = ByteReader::new(&mut mr); | |
872 | let mut nal_buf = Vec::new(); | |
873 | ||
874 | br.read_skip(4)?; | |
875 | let version = br.read_byte()?; | |
876 | validate!(version == 1); | |
877 | let profile = br.read_byte()?; | |
878 | let _compatibility = br.read_byte()?; | |
879 | let _level = br.read_byte()?; | |
880 | let b = br.read_byte()?; | |
881 | validate!((b & 0xFC) == 0xFC); | |
882 | self.nal_len = (b & 3) + 1; | |
883 | let b = br.read_byte()?; | |
884 | validate!((b & 0xE0) == 0xE0); | |
885 | let num_sps = (b & 0x1F) as usize; | |
886 | for _ in 0..num_sps { | |
887 | let len = br.read_u16be()? as usize; | |
888 | let offset = br.tell() as usize; | |
889 | validate!((br.peek_byte()? & 0x1F) == 7); | |
890 | let _size = unescape_nal(&edata[offset..][..len], &mut nal_buf); | |
891 | self.handle_nal(&nal_buf, supp, true)?; | |
892 | br.read_skip(len)?; | |
893 | } | |
894 | let num_pps = br.read_byte()? as usize; | |
895 | for _ in 0..num_pps { | |
896 | let len = br.read_u16be()? as usize; | |
897 | let offset = br.tell() as usize; | |
898 | validate!((br.peek_byte()? & 0x1F) == 8); | |
899 | let _size = unescape_nal(&edata[offset..][..len], &mut nal_buf); | |
900 | self.handle_nal(&nal_buf, supp, true)?; | |
901 | br.read_skip(len)?; | |
902 | } | |
903 | if br.left() > 0 { | |
904 | match profile { | |
905 | 100 | 110 | 122 | 144 => { | |
906 | let b = br.read_byte()?; | |
907 | validate!((b & 0xFC) == 0xFC); | |
908 | // b & 3 -> chroma format | |
909 | let b = br.read_byte()?; | |
910 | validate!((b & 0xF8) == 0xF8); | |
911 | // b & 7 -> luma depth minus 8 | |
912 | let b = br.read_byte()?; | |
913 | validate!((b & 0xF8) == 0xF8); | |
914 | // b & 7 -> chroma depth minus 8 | |
915 | let num_spsext = br.read_byte()? as usize; | |
916 | for _ in 0..num_spsext { | |
917 | let len = br.read_u16be()? as usize; | |
918 | // parse spsext | |
919 | br.read_skip(len)?; | |
920 | } | |
921 | }, | |
922 | _ => {}, | |
923 | }; | |
924 | } | |
925 | } else { | |
926 | return Err(DecoderError::NotImplemented); | |
927 | } | |
928 | ||
929 | self.width = vinfo.get_width(); | |
930 | self.height = vinfo.get_height(); | |
931 | ||
932 | if (self.width == 0 || self.height == 0) && !self.sps.is_empty() { | |
933 | self.width = self.sps[0].pic_width_in_mbs * 16; | |
934 | self.height = self.sps[0].pic_height_in_mbs * 16; | |
935 | } | |
936 | ||
937 | let num_bufs = if !self.sps.is_empty() { | |
938 | self.sps[0].num_ref_frames as usize + 1 | |
939 | } else { | |
940 | 3 | |
941 | }.max(16 + 1); | |
942 | supp.pool_u8.set_dec_bufs(num_bufs); | |
943 | supp.pool_u8.prealloc_video(NAVideoInfo::new(self.width, self.height, false, fmt), 4)?; | |
944 | ||
945 | Ok(()) | |
946 | } else { | |
696e4e20 KS |
947 | Err(DecoderError::InvalidData) |
948 | } | |
949 | } | |
950 | fn decode(&mut self, supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { | |
951 | let src = pkt.get_buffer(); | |
952 | ||
953 | let mut mr = MemoryReader::new_read(&src); | |
954 | let mut br = ByteReader::new(&mut mr); | |
955 | let mut nal_buf = Vec::with_capacity(src.len()); | |
956 | if self.nal_len > 0 { | |
957 | let mut skip_decoding = false; | |
958 | if self.skip_mode != FrameSkipMode::None { | |
959 | let mut pic_type = FrameType::I; | |
960 | let mut is_ref = false; | |
961 | while br.left() > 0 { | |
962 | let size = match self.nal_len { | |
963 | 1 => br.read_byte()? as usize, | |
964 | 2 => br.read_u16be()? as usize, | |
965 | 3 => br.read_u24be()? as usize, | |
966 | 4 => br.read_u32be()? as usize, | |
967 | _ => unreachable!(), | |
968 | }; | |
969 | validate!(br.left() >= (size as i64)); | |
970 | let offset = br.tell() as usize; | |
971 | let size = unescape_nal(&src[offset..][..size], &mut nal_buf); | |
972 | validate!(size > 0); | |
973 | let nal_ref_idc = nal_buf[0] >> 5; | |
974 | let nal_unit_type = nal_buf[0] & 0x1F; | |
975 | if nal_unit_type == 1 || nal_unit_type == 5 { | |
976 | let mut bitr = BitReader::new(&nal_buf[1..], BitReaderMode::BE); | |
977 | let (first_mb, slice_type) = parse_slice_header_minimal(&mut bitr)?; | |
978 | if first_mb == 0 && nal_ref_idc != 0 { | |
979 | is_ref = true; | |
980 | } | |
981 | let new_type = slice_type.to_frame_type(); | |
982 | pic_type = match (pic_type, new_type) { | |
983 | (FrameType::I, _) => new_type, | |
984 | (_, FrameType::B) => FrameType::B, | |
985 | _ => pic_type, | |
986 | }; | |
987 | } | |
988 | br.read_skip(size)?; | |
989 | } | |
990 | match self.skip_mode { | |
991 | FrameSkipMode::IntraOnly => { | |
992 | skip_decoding = pic_type != FrameType::I; | |
993 | }, | |
994 | FrameSkipMode::KeyframesOnly => { | |
995 | if !is_ref { | |
996 | skip_decoding = true; | |
997 | } | |
998 | }, | |
999 | _ => {}, | |
1000 | }; | |
1001 | br.seek(SeekFrom::Start(0))?; | |
1002 | } | |
1003 | while br.left() > 0 { | |
1004 | let size = match self.nal_len { | |
1005 | 1 => br.read_byte()? as usize, | |
1006 | 2 => br.read_u16be()? as usize, | |
1007 | 3 => br.read_u24be()? as usize, | |
1008 | 4 => br.read_u32be()? as usize, | |
1009 | _ => unreachable!(), | |
1010 | }; | |
1011 | validate!(br.left() >= (size as i64)); | |
1012 | let offset = br.tell() as usize; | |
1013 | let _size = unescape_nal(&src[offset..][..size], &mut nal_buf); | |
1014 | self.handle_nal(nal_buf.as_slice(), supp, skip_decoding)?; | |
1015 | br.read_skip(size)?; | |
1016 | } | |
1017 | } else { | |
1018 | //todo NAL detection | |
1019 | unimplemented!(); | |
1020 | } | |
1021 | ||
1022 | let (bufinfo, ftype, dts) = if self.has_pic && self.cur_pic.is_some() { | |
1023 | let mut npic = None; | |
1024 | std::mem::swap(&mut self.cur_pic, &mut npic); | |
1025 | let cpic = npic.unwrap(); | |
1026 | let ret = (NABufferType::Video(cpic.buf.clone()), cpic.pic_type, Some(u64::from(cpic.full_id))); | |
1027 | if cpic.is_ref { | |
1028 | self.frame_refs.add_short_term(cpic.clone(), self.sps[self.cur_sps].num_ref_frames); | |
1029 | } | |
1030 | if let Some(lt_idx) = cpic.long_term { | |
1031 | self.frame_refs.add_long_term(lt_idx, cpic); | |
1032 | } | |
1033 | ret | |
1034 | } else { | |
1035 | (NABufferType::None, FrameType::Skip, None) | |
1036 | }; | |
1037 | ||
1038 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo); | |
1039 | frm.set_keyframe(ftype == FrameType::I); | |
1040 | if let (Some(mydts), None) = (dts, frm.get_dts()) { | |
1041 | frm.set_dts(Some(mydts)); | |
1042 | } | |
1043 | if let Some(dts) = dts { | |
1044 | frm.set_id(dts as i64); | |
1045 | } | |
1046 | frm.set_frame_type(ftype); | |
1047 | Ok(frm.into_ref()) | |
1048 | } | |
1049 | fn flush(&mut self) { | |
1050 | } | |
1051 | } | |
1052 | ||
1053 | const DEBLOCK_SKIP_OPTION: &str = "skip_deblock"; | |
1054 | ||
1055 | const DECODER_OPTIONS: &[NAOptionDefinition] = &[ | |
1056 | NAOptionDefinition { | |
1057 | name: FRAME_SKIP_OPTION, description: FRAME_SKIP_OPTION_DESC, | |
1058 | opt_type: NAOptionDefinitionType::Bool }, | |
1059 | NAOptionDefinition { | |
1060 | name: DEBLOCK_SKIP_OPTION, description: "Loop filter skipping mode", | |
1061 | opt_type: NAOptionDefinitionType::String(Some(&[ | |
1062 | FRAME_SKIP_OPTION_VAL_NONE, | |
1063 | FRAME_SKIP_OPTION_VAL_KEYFRAME, | |
1064 | FRAME_SKIP_OPTION_VAL_INTRA | |
1065 | ])) }, | |
1066 | ]; | |
1067 | ||
1068 | impl NAOptionHandler for H264Decoder { | |
1069 | fn get_supported_options(&self) -> &[NAOptionDefinition] { DECODER_OPTIONS } | |
1070 | fn set_options(&mut self, options: &[NAOption]) { | |
1071 | for option in options.iter() { | |
1072 | for opt_def in DECODER_OPTIONS.iter() { | |
1073 | if opt_def.check(option).is_ok() { | |
1074 | match (option.name, &option.value) { | |
1075 | (FRAME_SKIP_OPTION, NAValue::String(ref str)) => { | |
1076 | if let Ok(smode) = FrameSkipMode::from_str(str) { | |
1077 | self.skip_mode = smode; | |
1078 | } | |
1079 | }, | |
1080 | (DEBLOCK_SKIP_OPTION, NAValue::Bool(val)) => { | |
1081 | self.deblock_skip = *val; | |
1082 | }, | |
1083 | _ => {}, | |
1084 | } | |
1085 | } | |
1086 | } | |
1087 | } | |
1088 | } | |
1089 | fn query_option_value(&self, name: &str) -> Option<NAValue> { | |
1090 | match name { | |
1091 | FRAME_SKIP_OPTION => Some(NAValue::String(self.skip_mode.to_string())), | |
1092 | DEBLOCK_SKIP_OPTION => Some(NAValue::Bool(self.deblock_skip)), | |
1093 | _ => None, | |
1094 | } | |
1095 | } | |
1096 | } | |
1097 | ||
1098 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { | |
1099 | Box::new(H264Decoder::new()) | |
1100 | } | |
1101 | ||
1102 | #[cfg(test)] | |
1103 | mod test { | |
1104 | use nihav_core::codecs::RegisteredDecoders; | |
1105 | use nihav_core::demuxers::RegisteredDemuxers; | |
1106 | use nihav_codec_support::test::dec_video::*; | |
1107 | use crate::itu_register_all_decoders; | |
1108 | use nihav_commonfmt::generic_register_all_demuxers; | |
1109 | ||
886cde48 | 1110 | // samples if not specified otherwise come from H.264 conformance suite |
696e4e20 KS |
1111 | mod raw_demux; |
1112 | mod conformance; | |
1113 | use self::raw_demux::RawH264DemuxerCreator; | |
1114 | ||
1115 | #[test] | |
1116 | fn test_h264_perframe() { | |
1117 | let mut dmx_reg = RegisteredDemuxers::new(); | |
1118 | dmx_reg.add_demuxer(&RawH264DemuxerCreator{}); | |
1119 | generic_register_all_demuxers(&mut dmx_reg); | |
1120 | let mut dec_reg = RegisteredDecoders::new(); | |
1121 | itu_register_all_decoders(&mut dec_reg); | |
1122 | ||
1123 | test_decoding("rawh264", "h264", | |
1124 | "assets/ITU/h264-conformance/CABAST3_Sony_E.jsv", | |
1125 | None, &dmx_reg, &dec_reg, ExpectedTestResult::MD5Frames(vec![ | |
7d251522 KS |
1126 | [0xb5e5e368, 0x6ac59bfc, 0x82e35b7b, 0xbed17b81], |
1127 | [0x8343b34d, 0x0de80ae9, 0xe9c08cc9, 0x05161d82], | |
1128 | [0x26e08b9b, 0x84949759, 0x71622124, 0x9bfff254], | |
1129 | [0x940c38bc, 0x559fb990, 0x2b82a7ca, 0x3543188a], | |
1130 | [0x60d7544d, 0x2fc8cc23, 0x4acac90f, 0x44c2a91c], | |
1131 | [0x68d86265, 0x15fc15b9, 0xe4946d83, 0x39d9584d], | |
1132 | [0xaed8e194, 0xa24b3a8a, 0xbed9085d, 0x05d68293], | |
1133 | [0x1cddffac, 0x0ce9d209, 0xc4090b8a, 0xc3008856], | |
1134 | [0x42ee0e5e, 0x4c1c3b64, 0xd91cc00b, 0x88be4b15], | |
1135 | [0x19a70aa8, 0xd8bc987d, 0x51c04849, 0x71191523], | |
1136 | [0x74532da6, 0xecb92919, 0xd39cb150, 0x9ca9933d], | |
1137 | [0x0444b315, 0x2ddfb91a, 0x1e21ce06, 0x0c8613e6], | |
1138 | [0xce209363, 0xf8d8331f, 0x72e0102f, 0x88de3a97], | |
1139 | [0xdbcfa40a, 0x7eed5940, 0xa5c53a66, 0xdfcd3cea], | |
1140 | [0x00796b14, 0x58f16117, 0xb6a5efd1, 0xfb129acd], | |
1141 | [0x7673f569, 0xfccfb96a, 0x1f614c82, 0xf62ea376], | |
1142 | [0x8669d98b, 0x9fdf4e7d, 0xa4083a7f, 0x9b66d296], | |
1143 | [0xf0537976, 0x924229ab, 0xd0f4612f, 0xad4b614e], | |
1144 | [0xbde82067, 0x6cf23a0c, 0xdd29e64d, 0xcaa72ff3], | |
1145 | [0xcfcb544a, 0x1f1a81b0, 0x2217108c, 0x4888d5ef], | |
1146 | [0x3369f874, 0x6a6dde75, 0x46d64780, 0xbf6ced32], | |
1147 | [0x253a1f45, 0x85954311, 0x983dbabe, 0x658f4ce3], | |
1148 | [0xec97b332, 0xa17b26d0, 0xbead22af, 0xa6bd7d8e], | |
1149 | [0x5673d973, 0x78528036, 0xabfe5e13, 0xdcedfb26], | |
1150 | [0xd6110fa9, 0x532d6a30, 0xb7f0aa7c, 0xae7b544b]])); | |
696e4e20 KS |
1151 | } |
1152 | ||
886cde48 | 1153 | // mostly static music video downloaded with youtube-dl |
696e4e20 KS |
1154 | #[test] |
1155 | fn test_h264_real1() { | |
1156 | let mut dmx_reg = RegisteredDemuxers::new(); | |
1157 | dmx_reg.add_demuxer(&RawH264DemuxerCreator{}); | |
1158 | generic_register_all_demuxers(&mut dmx_reg); | |
1159 | let mut dec_reg = RegisteredDecoders::new(); | |
1160 | itu_register_all_decoders(&mut dec_reg); | |
1161 | ||
1162 | test_decoding("mov", "h264", "assets/ITU/1.mp4", | |
1163 | Some(60), &dmx_reg, &dec_reg, | |
1164 | ExpectedTestResult::MD5Frames(vec![ | |
1165 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1166 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1167 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1168 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1169 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1170 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1171 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1172 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1173 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1174 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1175 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1176 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1177 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1178 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1179 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1180 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1181 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1182 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1183 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1184 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1185 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1186 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1187 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1188 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1189 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1190 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1191 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1192 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1193 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1194 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1195 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1196 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1197 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1198 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1199 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1200 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
1201 | [0x9dbac04a, 0xc49ca8c1, 0x09bb9182, 0xc7928970], | |
7d251522 KS |
1202 | [0xc54f1b6e, 0xaba56a71, 0x8b45132b, 0x3c8bde7f], |
1203 | [0xe2742374, 0x7b9d6fa6, 0xd57eb3bb, 0x42986664], | |
1204 | [0xa5ebdc2e, 0x9753a46a, 0x631c6359, 0x861ae0e3], | |
1205 | [0x4d2c8769, 0xb9e15141, 0x03274d1f, 0xc15a3733], | |
1206 | [0x17ebec8f, 0xe417571e, 0x75eb2559, 0x2f9b882b], | |
1207 | [0x148e8c97, 0x778f92ba, 0x93646539, 0xeebe643a], | |
1208 | [0xc6770caa, 0x1ac11a57, 0x1388a550, 0x2347758e], | |
1209 | [0x91eb3ae4, 0xaf664462, 0x858d344a, 0xda3baa79], | |
1210 | [0x4de79514, 0x3597aff0, 0x53e1a22f, 0x7875aa4c], | |
1211 | [0xd5afcf7c, 0xa0f4ce82, 0x21a70eb2, 0x3911cde1], | |
1212 | [0x9efa2a08, 0x29019ca6, 0xaba90890, 0xfb982857], | |
1213 | [0xc5755e20, 0x4c66cb54, 0x1194812e, 0x11a9d940], | |
1214 | [0xfd131bbb, 0x0acefb02, 0x6c79b7ab, 0x35bcdd26], | |
1215 | [0xad159db0, 0xfa65ced2, 0xf77e2b22, 0x9e6283a8], | |
1216 | [0xba2059e3, 0xc9f1e5e7, 0x7ea5fbcb, 0xf48d4fc3], | |
1217 | [0xbe794078, 0x64d69f9b, 0x7b6355c5, 0x7dfb5b0f], | |
1218 | [0x6031b77b, 0x712f42fd, 0x30d423df, 0x740e488c], | |
1219 | [0xcc475484, 0x30a664fc, 0x227a9725, 0x4b2bfb18], | |
1220 | [0x44bef2ea, 0xaf1e69e8, 0x832d94a8, 0xffb22712], | |
1221 | [0xe9471e3d, 0x103de80f, 0xdc44136f, 0x67dacaa8], | |
1222 | [0x4df3823d, 0xf6486ca9, 0x016f3114, 0x1c2d0b42], | |
1223 | [0x1171666b, 0x08ca0ced, 0x98719757, 0xbd6b4a86], | |
1224 | [0x9d2fc556, 0x5569fbbd, 0x0ebf629f, 0xd4fdc3b5], | |
1225 | [0x27dbd3c3, 0x803f0230, 0x13f2ff1b, 0xb661b622]])); | |
696e4e20 | 1226 | } |
886cde48 | 1227 | // a sample downloaded from gfycat.com |
696e4e20 KS |
1228 | #[test] |
1229 | fn test_h264_real2() { | |
1230 | let mut dmx_reg = RegisteredDemuxers::new(); | |
1231 | dmx_reg.add_demuxer(&RawH264DemuxerCreator{}); | |
1232 | generic_register_all_demuxers(&mut dmx_reg); | |
1233 | let mut dec_reg = RegisteredDecoders::new(); | |
1234 | itu_register_all_decoders(&mut dec_reg); | |
1235 | test_decoding("mov", "h264", "assets/ITU/DimpledSpanishCuckoo-mobile.mp4", | |
1236 | Some(10), &dmx_reg, &dec_reg, | |
1237 | ExpectedTestResult::MD5Frames(vec![ | |
7d251522 KS |
1238 | [0x674c6d60, 0xc7ab918d, 0x9db1beaf, 0xda9f2456], |
1239 | [0x6a935350, 0x3d463ab2, 0xa3ab3c53, 0x97eb896b], | |
1240 | [0xf6c60411, 0x19ea2c49, 0x3512371a, 0xce6cb26a], | |
1241 | [0xc87afeaa, 0x79899908, 0x152e6320, 0xe689827f], | |
1242 | [0xa3d829e3, 0xb404dd32, 0x11983613, 0xbdf10ee6], | |
1243 | [0x2440ea01, 0x5b9d7fc7, 0x4fa5632b, 0xd2d76090], | |
1244 | [0xd80e8bf9, 0xe9190ab7, 0x2be8fa38, 0xb94182e8], | |
1245 | [0x50b9fd9a, 0x64393126, 0xd03162ec, 0xfb54172a], | |
1246 | [0x80d1f58f, 0x12e454c0, 0x2140ca5c, 0xe19350ba], | |
1247 | [0x26078d38, 0xf6a59d57, 0xcd14eaf8, 0x8eb08259], | |
1248 | [0x31494337, 0x6f8d3f52, 0x4bc9ff92, 0x0c601b1c]])); | |
696e4e20 KS |
1249 | } |
1250 | } | |
1251 | ||
1252 | pub const I4X4_SCAN: [(u8, u8); 16] = [ | |
1253 | (0,0), (1,0), (0,1), (1,1), (2,0), (3,0), (2,1), (3,1), | |
1254 | (0,2), (1,2), (0,3), (1,3), (2,2), (3,2), (2,3), (3,3) | |
1255 | ]; |