]>
Commit | Line | Data |
---|---|---|
31cf33ac KS |
1 | use nihav_core::io::bitreader::*; |
2 | use nihav_core::io::codebook::*; | |
3 | use nihav_core::formats; | |
4 | use nihav_core::frame::*; | |
5 | use nihav_core::codecs::*; | |
6 | use nihav_codec_support::codecs::{MV, ZIGZAG}; | |
2af66d55 | 7 | use nihav_codec_support::codecs::blockdsp; |
31cf33ac | 8 | use nihav_codec_support::codecs::h263::*; |
2af66d55 | 9 | use nihav_codec_support::codecs::h263::code::*; |
31cf33ac KS |
10 | use nihav_codec_support::codecs::h263::decoder::*; |
11 | use nihav_codec_support::codecs::h263::data::*; | |
12 | ||
13 | #[allow(dead_code)] | |
14 | struct Tables { | |
15 | intra_mcbpc_cb: Codebook<u8>, | |
16 | inter_mcbpc_cb: Codebook<u8>, | |
17 | cbpy_cb: Codebook<u8>, | |
18 | rl_cb: Codebook<H263RLSym>, | |
19 | aic_rl_cb: Codebook<H263RLSym>, | |
20 | mv_cb: Codebook<u8>, | |
21 | } | |
22 | ||
2af66d55 KS |
23 | struct VivoBlockDSP {} |
24 | ||
25 | impl VivoBlockDSP { fn new() -> Self { Self {} } } | |
26 | ||
27 | #[allow(clippy::erasing_op)] | |
28 | #[allow(clippy::identity_op)] | |
29 | fn deblock_hor(buf: &mut [u8], off: usize, stride: usize, clip_tab: &[i16; 64]) { | |
30 | for x in 0..8 { | |
31 | let p1 = i16::from(buf[off - 2 * stride + x]); | |
32 | let p0 = i16::from(buf[off - 1 * stride + x]); | |
33 | let q0 = i16::from(buf[off + 0 * stride + x]); | |
34 | let q1 = i16::from(buf[off + 1 * stride + x]); | |
35 | let diff = (3 * (p1 - q1) + 8 * (q0 - p0)) >> 4; | |
36 | if (diff != 0) && (diff > -32) && (diff < 32) { | |
37 | let delta = clip_tab[(diff + 32) as usize]; | |
38 | buf[off - 1 * stride + x] = (p0 + delta).max(0).min(255) as u8; | |
39 | buf[off + 0 * stride + x] = (q0 - delta).max(0).min(255) as u8; | |
40 | } | |
41 | } | |
42 | } | |
43 | ||
44 | #[allow(clippy::identity_op)] | |
45 | fn deblock_ver(buf: &mut [u8], off: usize, stride: usize, clip_tab: &[i16; 64]) { | |
46 | for y in 0..8 { | |
47 | let p1 = i16::from(buf[off - 2 + y * stride]); | |
48 | let p0 = i16::from(buf[off - 1 + y * stride]); | |
49 | let q0 = i16::from(buf[off + 0 + y * stride]); | |
50 | let q1 = i16::from(buf[off + 1 + y * stride]); | |
51 | let diff = (3 * (p1 - q1) + 8 * (q0 - p0)) >> 4; | |
52 | if (diff != 0) && (diff > -32) && (diff < 32) { | |
53 | let delta = clip_tab[(diff + 32) as usize]; | |
54 | buf[off - 1 + y * stride] = (p0 + delta).max(0).min(255) as u8; | |
55 | buf[off + y * stride] = (q0 - delta).max(0).min(255) as u8; | |
56 | } | |
57 | } | |
58 | } | |
59 | ||
60 | fn gen_clip_tab(clip_tab: &mut [i16; 64], q: u8) { | |
61 | let q = i16::from(q); | |
62 | *clip_tab = [0; 64]; | |
63 | let lim = (q + 2) >> 1; | |
64 | for i in 0..lim { | |
65 | clip_tab[(32 - i) as usize] = -i; | |
66 | clip_tab[(32 + i) as usize] = i; | |
67 | } | |
68 | for i in lim..q { | |
69 | let val = q - i; | |
70 | clip_tab[(32 - i) as usize] = -val; | |
71 | clip_tab[(32 + i) as usize] = val; | |
72 | } | |
73 | } | |
74 | ||
75 | impl BlockDSP for VivoBlockDSP { | |
76 | fn idct(&self, blk: &mut [i16; 64]) { | |
77 | h263_annex_w_idct(blk); | |
78 | } | |
79 | fn copy_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mv: MV) { | |
80 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; | |
81 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); | |
82 | ||
83 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); | |
84 | ||
85 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos, ypos, mv.x >> 1, mv.y >> 1, 16, 16, 0, 1, mode, H263_INTERP_FUNCS); | |
86 | blockdsp::copy_block(&mut dst, src.clone(), 1, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_FUNCS); | |
87 | blockdsp::copy_block(&mut dst, src.clone(), 2, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_FUNCS); | |
88 | } | |
89 | fn copy_blocks8x8(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mvs: &[MV; 4]) { | |
90 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); | |
91 | ||
92 | for i in 0..4 { | |
93 | let xadd = (i & 1) * 8; | |
94 | let yadd = (i & 2) * 4; | |
95 | let mode = ((mvs[i].x & 1) + (mvs[i].y & 1) * 2) as usize; | |
96 | ||
97 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos + xadd, ypos + yadd, mvs[i].x >> 1, mvs[i].y >> 1, 8, 8, 0, 1, mode, H263_INTERP_FUNCS); | |
98 | } | |
99 | ||
100 | let sum_mv = mvs[0] + mvs[1] + mvs[2] + mvs[3]; | |
101 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; | |
102 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; | |
103 | let mode = ((cmx & 1) + (cmy & 1) * 2) as usize; | |
104 | for plane in 1..3 { | |
105 | blockdsp::copy_block(&mut dst, src.clone(), plane, xpos >> 1, ypos >> 1, cmx >> 1, cmy >> 1, 8, 8, 0, 1, mode, H263_INTERP_FUNCS); | |
106 | } | |
107 | } | |
108 | fn avg_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mv: MV) { | |
109 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; | |
110 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); | |
111 | ||
112 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); | |
113 | ||
114 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos, ypos, mv.x >> 1, mv.y >> 1, 16, 16, 0, 1, mode, H263_INTERP_AVG_FUNCS); | |
115 | blockdsp::copy_block(&mut dst, src.clone(), 1, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_AVG_FUNCS); | |
116 | blockdsp::copy_block(&mut dst, src.clone(), 2, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_AVG_FUNCS); | |
117 | } | |
118 | fn avg_blocks8x8(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mvs: &[MV; 4]) { | |
119 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); | |
120 | ||
121 | for i in 0..4 { | |
122 | let xadd = (i & 1) * 8; | |
123 | let yadd = (i & 2) * 4; | |
124 | let mode = ((mvs[i].x & 1) + (mvs[i].y & 1) * 2) as usize; | |
125 | ||
126 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos + xadd, ypos + yadd, mvs[i].x >> 1, mvs[i].y >> 1, 8, 8, 0, 1, mode, H263_INTERP_AVG_FUNCS); | |
127 | } | |
128 | ||
129 | let sum_mv = mvs[0] + mvs[1] + mvs[2] + mvs[3]; | |
130 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; | |
131 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; | |
132 | let mode = ((cmx & 1) + (cmy & 1) * 2) as usize; | |
133 | for plane in 1..3 { | |
134 | blockdsp::copy_block(&mut dst, src.clone(), plane, xpos >> 1, ypos >> 1, cmx >> 1, cmy >> 1, 8, 8, 0, 1, mode, H263_INTERP_AVG_FUNCS); | |
135 | } | |
136 | } | |
137 | fn filter_row(&self, buf: &mut NAVideoBuffer<u8>, mb_y: usize, mb_w: usize, cbpi: &CBPInfo) { | |
138 | let ystride = buf.get_stride(0); | |
139 | let ustride = buf.get_stride(1); | |
140 | let vstride = buf.get_stride(2); | |
141 | let yoff = buf.get_offset(0) + mb_y * 16 * ystride; | |
142 | let uoff = buf.get_offset(1) + mb_y * 8 * ustride; | |
143 | let voff = buf.get_offset(2) + mb_y * 8 * vstride; | |
144 | let buf = buf.get_data_mut().unwrap(); | |
145 | ||
146 | let mut clip_tab = [0i16; 64]; | |
147 | let mut last_q = 0; | |
148 | let mut off = yoff; | |
149 | for mb_x in 0..mb_w { | |
150 | let coff = off; | |
151 | let coded0 = cbpi.is_coded(mb_x, 0); | |
152 | let coded1 = cbpi.is_coded(mb_x, 1); | |
153 | let q = cbpi.get_q(mb_w + mb_x); | |
154 | if q != last_q { | |
155 | gen_clip_tab(&mut clip_tab, q); | |
156 | last_q = q; | |
157 | } | |
158 | if mb_y != 0 { | |
159 | if coded0 && cbpi.is_coded_top(mb_x, 0) { | |
160 | deblock_hor(buf, ystride, coff, &clip_tab); | |
161 | } | |
162 | if coded1 && cbpi.is_coded_top(mb_x, 1) { | |
163 | deblock_hor(buf, ystride, coff + 8, &clip_tab); | |
164 | } | |
165 | } | |
166 | let coff = off + 8 * ystride; | |
167 | if cbpi.is_coded(mb_x, 2) && coded0 { | |
168 | deblock_hor(buf, ystride, coff, &clip_tab); | |
169 | } | |
170 | if cbpi.is_coded(mb_x, 3) && coded1 { | |
171 | deblock_hor(buf, ystride, coff + 8, &clip_tab); | |
172 | } | |
173 | off += 16; | |
174 | } | |
175 | let mut leftt = false; | |
176 | let mut leftc = false; | |
177 | let mut off = yoff; | |
178 | for mb_x in 0..mb_w { | |
179 | let ctop0 = cbpi.is_coded_top(mb_x, 0); | |
180 | let ctop1 = cbpi.is_coded_top(mb_x, 0); | |
181 | let ccur0 = cbpi.is_coded(mb_x, 0); | |
182 | let ccur1 = cbpi.is_coded(mb_x, 1); | |
183 | let q = cbpi.get_q(mb_w + mb_x); | |
184 | if q != last_q { | |
185 | gen_clip_tab(&mut clip_tab, q); | |
186 | last_q = q; | |
187 | } | |
188 | if mb_y != 0 { | |
189 | let coff = off - 8 * ystride; | |
190 | let qtop = cbpi.get_q(mb_x); | |
191 | if qtop != last_q { | |
192 | gen_clip_tab(&mut clip_tab, qtop); | |
193 | last_q = qtop; | |
194 | } | |
195 | if leftt && ctop0 { | |
196 | deblock_ver(buf, ystride, coff, &clip_tab); | |
197 | } | |
198 | if ctop0 && ctop1 { | |
199 | deblock_ver(buf, ystride, coff + 8, &clip_tab); | |
200 | } | |
201 | } | |
202 | if leftc && ccur0 { | |
203 | deblock_ver(buf, ystride, off, &clip_tab); | |
204 | } | |
205 | if ccur0 && ccur1 { | |
206 | deblock_ver(buf, ystride, off + 8, &clip_tab); | |
207 | } | |
208 | leftt = ctop1; | |
209 | leftc = ccur1; | |
210 | off += 16; | |
211 | } | |
212 | if mb_y != 0 { | |
213 | for mb_x in 0..mb_w { | |
214 | let ctu = cbpi.is_coded_top(mb_x, 4); | |
215 | let ccu = cbpi.is_coded(mb_x, 4); | |
216 | let ctv = cbpi.is_coded_top(mb_x, 5); | |
217 | let ccv = cbpi.is_coded(mb_x, 5); | |
218 | let q = cbpi.get_q(mb_w + mb_x); | |
219 | if q != last_q { | |
220 | gen_clip_tab(&mut clip_tab, q); | |
221 | last_q = q; | |
222 | } | |
223 | if ctu && ccu { | |
224 | deblock_hor(buf, ustride, uoff + mb_x * 8, &clip_tab); | |
225 | } | |
226 | if ctv && ccv { | |
227 | deblock_hor(buf, vstride, voff + mb_x * 8, &clip_tab); | |
228 | } | |
229 | } | |
230 | let mut leftu = false; | |
231 | let mut leftv = false; | |
232 | let offu = uoff - 8 * ustride; | |
233 | let offv = voff - 8 * vstride; | |
234 | for mb_x in 0..mb_w { | |
235 | let ctu = cbpi.is_coded_top(mb_x, 4); | |
236 | let ctv = cbpi.is_coded_top(mb_x, 5); | |
237 | let qt = cbpi.get_q(mb_x); | |
238 | if qt != last_q { | |
239 | gen_clip_tab(&mut clip_tab, qt); | |
240 | last_q = qt; | |
241 | } | |
242 | if leftu && ctu { | |
243 | deblock_ver(buf, ustride, offu + mb_x * 8, &clip_tab); | |
244 | } | |
245 | if leftv && ctv { | |
246 | deblock_ver(buf, vstride, offv + mb_x * 8, &clip_tab); | |
247 | } | |
248 | leftu = ctu; | |
249 | leftv = ctv; | |
250 | } | |
251 | } | |
252 | } | |
253 | } | |
254 | ||
31cf33ac KS |
255 | struct VivoDecoder { |
256 | info: NACodecInfoRef, | |
257 | dec: H263BaseDecoder, | |
258 | tables: Tables, | |
2af66d55 | 259 | bdsp: VivoBlockDSP, |
31cf33ac KS |
260 | lastframe: Option<NABufferType>, |
261 | lastpts: Option<u64>, | |
262 | width: usize, | |
263 | height: usize, | |
264 | } | |
265 | ||
266 | struct VivoBR<'a> { | |
267 | br: BitReader<'a>, | |
268 | tables: &'a Tables, | |
269 | gob_no: usize, | |
270 | mb_w: usize, | |
271 | is_pb: bool, | |
272 | is_ipb: bool, | |
273 | ref_w: usize, | |
274 | ref_h: usize, | |
275 | aic: bool, | |
276 | } | |
277 | ||
278 | fn check_marker<'a>(br: &mut BitReader<'a>) -> DecoderResult<()> { | |
279 | let mark = br.read(1)?; | |
280 | validate!(mark == 1); | |
281 | Ok(()) | |
282 | } | |
283 | ||
284 | impl<'a> VivoBR<'a> { | |
285 | fn new(src: &'a [u8], tables: &'a Tables, ref_w: usize, ref_h: usize) -> Self { | |
286 | VivoBR { | |
287 | br: BitReader::new(src, BitReaderMode::BE), | |
288 | tables, | |
289 | gob_no: 0, | |
290 | mb_w: 0, | |
291 | is_pb: false, | |
292 | is_ipb: false, | |
293 | ref_w, ref_h, | |
294 | aic: false, | |
295 | } | |
296 | } | |
297 | ||
2af66d55 | 298 | fn decode_block(&mut self, quant: u8, intra: bool, coded: bool, blk: &mut [i16; 64], _plane_no: usize, acpred: ACPredMode) -> DecoderResult<()> { |
31cf33ac KS |
299 | let br = &mut self.br; |
300 | let mut idx = 0; | |
301 | if !self.aic && intra { | |
302 | let mut dc = br.read(8)? as i16; | |
303 | if dc == 255 { dc = 128; } | |
304 | blk[0] = dc << 3; | |
305 | idx = 1; | |
306 | } | |
307 | if !coded { return Ok(()); } | |
308 | let scan = match acpred { | |
309 | ACPredMode::Hor => H263_SCAN_V, | |
310 | ACPredMode::Ver => H263_SCAN_H, | |
311 | _ => &ZIGZAG, | |
312 | }; | |
313 | ||
314 | let rl_cb = if self.aic && intra { &self.tables.aic_rl_cb } else { &self.tables.rl_cb }; | |
2af66d55 | 315 | let q = i16::from(quant * 2); |
31cf33ac KS |
316 | let q_add = if q == 0 || self.aic { 0i16 } else { (((q >> 1) - 1) | 1) as i16 }; |
317 | while idx < 64 { | |
318 | let code = br.read_cb(rl_cb)?; | |
319 | let run; | |
320 | let mut level; | |
321 | let last; | |
322 | if !code.is_escape() { | |
323 | run = code.get_run(); | |
324 | level = code.get_level(); | |
325 | last = code.is_last(); | |
326 | if br.read_bool()? { level = -level; } | |
2af66d55 KS |
327 | if !intra || idx != 0 { |
328 | if level >= 0 { | |
329 | level = (level * q) + q_add; | |
330 | } else { | |
331 | level = (level * q) - q_add; | |
332 | } | |
31cf33ac KS |
333 | } |
334 | } else { | |
335 | last = br.read_bool()?; | |
336 | run = br.read(6)? as u8; | |
337 | level = br.read_s(8)? as i16; | |
338 | if level == -128 { | |
339 | let low = br.read(5)? as i16; | |
340 | let top = br.read_s(6)? as i16; | |
341 | level = (top << 5) | low; | |
342 | } | |
2af66d55 KS |
343 | if !intra || idx != 0 { |
344 | if level >= 0 { | |
345 | level = (level * q) + q_add; | |
346 | } else { | |
347 | level = (level * q) - q_add; | |
348 | } | |
349 | if level < -2048 { level = -2048; } | |
350 | if level > 2047 { level = 2047; } | |
31cf33ac | 351 | } |
31cf33ac KS |
352 | } |
353 | idx += run; | |
354 | validate!(idx < 64); | |
355 | let oidx = scan[idx as usize]; | |
356 | blk[oidx] = level; | |
357 | idx += 1; | |
358 | if last { break; } | |
359 | } | |
360 | Ok(()) | |
361 | } | |
362 | } | |
363 | ||
364 | fn decode_mv_component(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<i16> { | |
365 | let code = i16::from(br.read_cb(mv_cb)?); | |
366 | if code == 0 { return Ok(0) } | |
367 | if !br.read_bool()? { | |
368 | Ok(code) | |
369 | } else { | |
370 | Ok(-code) | |
371 | } | |
372 | } | |
373 | ||
374 | fn decode_mv(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<MV> { | |
375 | let xval = decode_mv_component(br, mv_cb)?; | |
376 | let yval = decode_mv_component(br, mv_cb)?; | |
377 | Ok(MV::new(xval, yval)) | |
378 | } | |
379 | ||
380 | fn decode_b_info(br: &mut BitReader, is_pb: bool, is_ipb: bool, is_intra: bool) -> DecoderResult<BBlockInfo> { | |
381 | if is_pb { // as improved pb | |
382 | if is_ipb { | |
383 | let pb_mv_add = if is_intra { 1 } else { 0 }; | |
384 | if br.read_bool()?{ | |
385 | if br.read_bool()? { | |
386 | let pb_mv_count = 1 - (br.read(1)? as usize); | |
387 | let cbpb = br.read(6)? as u8; | |
388 | Ok(BBlockInfo::new(true, cbpb, pb_mv_count + pb_mv_add, pb_mv_count == 1)) | |
389 | } else { | |
390 | Ok(BBlockInfo::new(true, 0, 1 + pb_mv_add, true)) | |
391 | } | |
392 | } else { | |
393 | Ok(BBlockInfo::new(true, 0, pb_mv_add, false)) | |
394 | } | |
395 | } else { | |
396 | let mvdb = br.read_bool()?; | |
397 | let cbpb = if mvdb && br.read_bool()? { br.read(6)? as u8 } else { 0 }; | |
398 | Ok(BBlockInfo::new(true, cbpb, if mvdb { 1 } else { 0 }, false)) | |
399 | } | |
400 | } else { | |
401 | Ok(BBlockInfo::new(false, 0, 0, false)) | |
402 | } | |
403 | } | |
404 | ||
405 | impl<'a> BlockDecoder for VivoBR<'a> { | |
406 | ||
407 | #[allow(unused_variables)] | |
494ad253 | 408 | #[allow(clippy::unreadable_literal)] |
31cf33ac KS |
409 | fn decode_pichdr(&mut self) -> DecoderResult<PicInfo> { |
410 | let br = &mut self.br; | |
411 | let syncw = br.read(22)?; | |
412 | validate!(syncw == 0x000020); | |
413 | let tr = (br.read(8)? << 8) as u16; | |
414 | check_marker(br)?; | |
415 | let id = br.read(1)?; | |
416 | validate!(id == 0); | |
417 | br.read(1)?; // split screen indicator | |
418 | br.read(1)?; // document camera indicator | |
419 | br.read(1)?; // freeze picture release | |
420 | let mut sfmt = br.read(3)?; | |
421 | validate!(sfmt != 0b000); | |
422 | let is_intra = !br.read_bool()?; | |
423 | let umv = br.read_bool()?; | |
424 | br.read(1)?; // syntax arithmetic coding | |
425 | let apm = br.read_bool()?; | |
426 | self.is_pb = br.read_bool()?; | |
427 | let deblock; | |
428 | let pbplus; | |
429 | let aic; | |
430 | if sfmt == 0b110 { | |
431 | sfmt = br.read(3)?; | |
432 | validate!(sfmt != 0b000 && sfmt != 0b110); | |
433 | aic = br.read_bool()?; | |
434 | br.read(1)?; // umv mode | |
435 | deblock = br.read_bool()?; | |
436 | br.read(3)?; // unknown flags | |
437 | pbplus = br.read_bool()?; | |
438 | br.read(4)?; // unknown flags | |
439 | } else { | |
440 | aic = false; | |
441 | deblock = false; | |
442 | pbplus = false; | |
443 | } | |
444 | self.is_ipb = pbplus; | |
445 | let (w, h) = match sfmt { | |
446 | 0b001 => ( 64, 48), | |
447 | 0b011 => ( 88, 72), | |
448 | 0b010 => (176, 144), | |
449 | 0b100 => (352, 288), | |
450 | 0b101 => (704, 576), | |
451 | 0b111 => { | |
452 | validate!((self.ref_w != 0) && (self.ref_h != 0)); | |
453 | ((self.ref_w + 15) & !15, (self.ref_h + 15) & !15) | |
454 | }, | |
455 | _ => return Err(DecoderError::InvalidData), | |
456 | }; | |
457 | let quant = br.read(5)?; | |
458 | let cpm = br.read_bool()?; | |
459 | validate!(!cpm); | |
460 | ||
461 | let pbinfo; | |
462 | if self.is_pb { | |
463 | let trb = br.read(3)?; | |
464 | let dbquant = br.read(2)?; | |
465 | pbinfo = Some(PBInfo::new(trb as u8, dbquant as u8, pbplus)); | |
466 | } else { | |
467 | pbinfo = None; | |
468 | } | |
469 | while br.read_bool()? { // skip PEI | |
470 | br.read(8)?; | |
471 | } | |
472 | self.gob_no = 0; | |
473 | self.mb_w = (w + 15) >> 4; | |
474 | self.aic = aic; | |
475 | ||
476 | let ftype = if is_intra { Type::I } else { Type::P }; | |
477 | let plusinfo = Some(PlusInfo::new(aic, deblock, false, false)); | |
478 | let mvmode = if umv { MVMode::UMV } else { MVMode::Old }; | |
479 | let picinfo = PicInfo::new(w, h, ftype, mvmode, umv, apm, quant as u8, tr, pbinfo, plusinfo); | |
480 | Ok(picinfo) | |
481 | } | |
482 | ||
483 | #[allow(unused_variables)] | |
484 | fn decode_slice_header(&mut self, info: &PicInfo) -> DecoderResult<SliceInfo> { | |
485 | let br = &mut self.br; | |
486 | let gbsc = br.read(17)?; | |
487 | validate!(gbsc == 1); | |
488 | let gn = br.read(5)?; | |
489 | let gfid = br.read(2)?; | |
490 | let gquant = br.read(5)?; | |
491 | let ret = SliceInfo::new_gob(0, self.gob_no, gquant as u8); | |
492 | self.gob_no += 1; | |
493 | Ok(ret) | |
494 | } | |
495 | ||
496 | #[allow(unused_variables)] | |
497 | fn decode_block_header(&mut self, info: &PicInfo, slice: &SliceInfo, sstate: &SliceState) -> DecoderResult<BlockInfo> { | |
498 | let br = &mut self.br; | |
499 | let mut q = slice.get_quant(); | |
500 | match info.get_mode() { | |
501 | Type::I => { | |
502 | let mut cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; | |
503 | while cbpc == 8 { cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; } | |
504 | let mut acpred = ACPredMode::None; | |
505 | if let Some(ref pi) = info.plusinfo { | |
506 | if pi.aic { | |
507 | let acpp = br.read_bool()?; | |
508 | acpred = ACPredMode::DC; | |
509 | if acpp { | |
510 | acpred = if !br.read_bool()? { ACPredMode::Hor } else { ACPredMode::Ver }; | |
511 | } | |
512 | } | |
513 | } | |
514 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; | |
515 | let cbp = (cbpy << 2) | (cbpc & 3); | |
516 | let dquant = (cbpc & 4) != 0; | |
517 | if dquant { | |
518 | let idx = br.read(2)? as usize; | |
519 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; | |
520 | } | |
521 | let mut binfo = BlockInfo::new(Type::I, cbp, q); | |
522 | binfo.set_acpred(acpred); | |
523 | Ok(binfo) | |
524 | }, | |
525 | Type::P => { | |
526 | if br.read_bool()? { return Ok(BlockInfo::new(Type::Skip, 0, info.get_quant())); } | |
527 | let mut cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; | |
528 | while cbpc == 20 { cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; } | |
529 | let is_intra = (cbpc & 0x04) != 0; | |
530 | let dquant = (cbpc & 0x08) != 0; | |
531 | let is_4x4 = (cbpc & 0x10) != 0; | |
532 | if is_intra { | |
533 | let mut acpred = ACPredMode::None; | |
534 | if let Some(ref pi) = info.plusinfo { | |
535 | if pi.aic { | |
536 | let acpp = br.read_bool()?; | |
537 | acpred = ACPredMode::DC; | |
538 | if acpp { | |
539 | acpred = if !br.read_bool()? { ACPredMode::Hor } else { ACPredMode::Ver }; | |
540 | } | |
541 | } | |
542 | } | |
543 | let mut mvec: Vec<MV> = Vec::new(); | |
544 | let bbinfo = decode_b_info(br, self.is_pb, self.is_ipb, true)?; | |
545 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; | |
546 | let cbp = (cbpy << 2) | (cbpc & 3); | |
547 | if dquant { | |
548 | let idx = br.read(2)? as usize; | |
549 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; | |
550 | } | |
551 | let mut binfo = BlockInfo::new(Type::I, cbp, q); | |
552 | binfo.set_bpart(bbinfo); | |
553 | binfo.set_acpred(acpred); | |
554 | if self.is_pb { | |
555 | for _ in 0..bbinfo.get_num_mv() { | |
556 | mvec.push(decode_mv(br, &self.tables.mv_cb)?); | |
557 | } | |
558 | binfo.set_b_mv(mvec.as_slice()); | |
559 | } | |
560 | return Ok(binfo); | |
561 | } | |
562 | ||
563 | let bbinfo = decode_b_info(br, self.is_pb, self.is_ipb, false)?; | |
564 | let mut cbpy = br.read_cb(&self.tables.cbpy_cb)?; | |
565 | // if /* !aiv && */(cbpc & 3) != 3 { | |
566 | cbpy ^= 0xF; | |
567 | // } | |
568 | let cbp = (cbpy << 2) | (cbpc & 3); | |
569 | if dquant { | |
570 | let idx = br.read(2)? as usize; | |
571 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; | |
572 | } | |
573 | let mut binfo = BlockInfo::new(Type::P, cbp, q); | |
574 | binfo.set_bpart(bbinfo); | |
575 | if !is_4x4 { | |
576 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; | |
577 | binfo.set_mv(&mvec); | |
578 | } else { | |
579 | let mvec: [MV; 4] = [ | |
580 | decode_mv(br, &self.tables.mv_cb)?, | |
581 | decode_mv(br, &self.tables.mv_cb)?, | |
582 | decode_mv(br, &self.tables.mv_cb)?, | |
583 | decode_mv(br, &self.tables.mv_cb)? | |
584 | ]; | |
585 | binfo.set_mv(&mvec); | |
586 | } | |
587 | if self.is_pb { | |
588 | let mut mvec: Vec<MV> = Vec::with_capacity(bbinfo.get_num_mv()); | |
589 | for _ in 0..bbinfo.get_num_mv() { | |
590 | let mv = decode_mv(br, &self.tables.mv_cb)?; | |
591 | mvec.push(mv); | |
592 | } | |
593 | binfo.set_b_mv(mvec.as_slice()); | |
594 | } | |
595 | Ok(binfo) | |
596 | }, | |
597 | _ => Err(DecoderError::InvalidData), | |
598 | } | |
599 | } | |
600 | ||
601 | #[allow(unused_variables)] | |
602 | fn decode_block_intra(&mut self, info: &BlockInfo, _sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { | |
603 | self.decode_block(quant, true, coded, blk, if no < 4 { 0 } else { no - 3 }, info.get_acpred()) | |
604 | } | |
605 | ||
606 | #[allow(unused_variables)] | |
607 | fn decode_block_inter(&mut self, info: &BlockInfo, _sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { | |
608 | self.decode_block(quant, false, coded, blk, if no < 4 { 0 } else { no - 3 }, ACPredMode::None) | |
609 | } | |
610 | ||
611 | fn is_slice_end(&mut self) -> bool { self.br.peek(16) == 0 } | |
612 | } | |
613 | ||
614 | impl VivoDecoder { | |
615 | fn new() -> Self { | |
616 | let mut coderead = H263ShortCodeReader::new(H263_INTRA_MCBPC); | |
617 | let intra_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
618 | let mut coderead = H263ShortCodeReader::new(H263_INTER_MCBPC); | |
619 | let inter_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
620 | let mut coderead = H263ShortCodeReader::new(H263_CBPY); | |
621 | let cbpy_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
622 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES); | |
623 | let rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
624 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES_AIC); | |
625 | let aic_rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
626 | let mut coderead = H263ShortCodeReader::new(H263_MV); | |
627 | let mv_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
628 | let tables = Tables { | |
629 | intra_mcbpc_cb, | |
630 | inter_mcbpc_cb, | |
631 | cbpy_cb, | |
632 | rl_cb, | |
633 | aic_rl_cb, | |
634 | mv_cb, | |
635 | }; | |
636 | ||
637 | VivoDecoder{ | |
638 | info: NACodecInfo::new_dummy(), | |
2af66d55 | 639 | dec: H263BaseDecoder::new_with_opts(H263DEC_OPT_SLICE_RESET | H263DEC_OPT_USES_GOB | H263DEC_OPT_PRED_QUANT), |
31cf33ac | 640 | tables, |
2af66d55 | 641 | bdsp: VivoBlockDSP::new(), |
31cf33ac KS |
642 | lastframe: None, |
643 | lastpts: None, | |
644 | width: 0, | |
645 | height: 0, | |
646 | } | |
647 | } | |
648 | } | |
649 | ||
650 | impl NADecoder for VivoDecoder { | |
651 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { | |
652 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { | |
653 | let w = vinfo.get_width(); | |
654 | let h = vinfo.get_height(); | |
655 | let fmt = formats::YUV420_FORMAT; | |
656 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, fmt)); | |
657 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref(); | |
658 | self.width = w; | |
659 | self.height = h; | |
660 | Ok(()) | |
661 | } else { | |
662 | Err(DecoderError::InvalidData) | |
663 | } | |
664 | } | |
665 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { | |
666 | let src = pkt.get_buffer(); | |
667 | ||
668 | if src.len() == 0 { | |
669 | let buftype; | |
670 | let ftype; | |
671 | if self.lastframe.is_none() { | |
672 | buftype = NABufferType::None; | |
673 | ftype = FrameType::Skip; | |
674 | } else { | |
675 | let mut buf = None; | |
676 | std::mem::swap(&mut self.lastframe, &mut buf); | |
677 | buftype = buf.unwrap(); | |
678 | ftype = FrameType::B; | |
679 | } | |
680 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), buftype); | |
681 | frm.set_keyframe(false); | |
682 | frm.set_frame_type(ftype); | |
683 | if self.lastpts.is_some() { | |
684 | frm.set_pts(self.lastpts); | |
685 | self.lastpts = None; | |
686 | } | |
687 | return Ok(frm.into_ref()); | |
688 | } | |
689 | let mut ibr = VivoBR::new(&src, &self.tables, self.width, self.height); | |
690 | ||
691 | let bufinfo = self.dec.parse_frame(&mut ibr, &self.bdsp)?; | |
692 | ||
693 | let mut cur_pts = pkt.get_pts(); | |
694 | if !self.dec.is_intra() { | |
695 | let bret = self.dec.get_bframe(&self.bdsp); | |
696 | if let Ok(b_buf) = bret { | |
697 | self.lastframe = Some(b_buf); | |
698 | self.lastpts = pkt.get_pts(); | |
699 | if let Some(pts) = pkt.get_pts() { | |
700 | cur_pts = Some(pts + 1); | |
701 | } | |
702 | } | |
703 | } | |
704 | ||
705 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo); | |
706 | frm.set_keyframe(self.dec.is_intra()); | |
707 | frm.set_frame_type(if self.dec.is_intra() { FrameType::I } else { FrameType::P }); | |
708 | frm.set_pts(cur_pts); | |
709 | Ok(frm.into_ref()) | |
710 | } | |
711 | fn flush(&mut self) { | |
712 | self.dec.flush(); | |
713 | } | |
714 | } | |
715 | ||
7d57ae2f KS |
716 | impl NAOptionHandler for VivoDecoder { |
717 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
718 | fn set_options(&mut self, _options: &[NAOption]) { } | |
719 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
720 | } | |
721 | ||
31cf33ac KS |
722 | |
723 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { | |
724 | Box::new(VivoDecoder::new()) | |
725 | } | |
726 | ||
727 | #[cfg(test)] | |
728 | mod test { | |
729 | use nihav_core::codecs::RegisteredDecoders; | |
730 | use nihav_core::demuxers::RegisteredDemuxers; | |
731 | use nihav_codec_support::test::dec_video::*; | |
78fb6560 | 732 | use crate::vivo_register_all_decoders; |
31cf33ac KS |
733 | use crate::vivo_register_all_demuxers; |
734 | #[test] | |
735 | fn test_vivo1() { | |
736 | let mut dmx_reg = RegisteredDemuxers::new(); | |
737 | vivo_register_all_demuxers(&mut dmx_reg); | |
738 | let mut dec_reg = RegisteredDecoders::new(); | |
78fb6560 | 739 | vivo_register_all_decoders(&mut dec_reg); |
31cf33ac KS |
740 | |
741 | test_file_decoding("vivo", "assets/Misc/gr_al.viv", Some(16), true, false, Some("viv1"), &dmx_reg, &dec_reg); | |
742 | // test_decoding("vivo", "vivo1", "assets/Misc/gr_al.viv", Some(16), | |
743 | // &dmx_reg, &dec_reg, ExpectedTestResult::GenerateMD5Frames)); | |
744 | } | |
745 | #[test] | |
746 | fn test_vivo2() { | |
747 | let mut dmx_reg = RegisteredDemuxers::new(); | |
748 | vivo_register_all_demuxers(&mut dmx_reg); | |
749 | let mut dec_reg = RegisteredDecoders::new(); | |
78fb6560 | 750 | vivo_register_all_decoders(&mut dec_reg); |
31cf33ac KS |
751 | |
752 | test_file_decoding("vivo", "assets/Misc/02-KimagureOrangeRoad.viv", Some(50), true, false, Some("viv2"), &dmx_reg, &dec_reg); | |
753 | panic!("end"); | |
754 | // test_decoding("vivo", "vivo2", "assets/Misc/greetings.viv", Some(16), | |
755 | // &dmx_reg, &dec_reg, ExpectedTestResult::GenerateMD5Frames)); | |
756 | } | |
757 | } |