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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}; | |
7 | use nihav_codec_support::codecs::blockdsp; | |
8 | use nihav_codec_support::codecs::h263::*; | |
9 | use nihav_codec_support::codecs::h263::code::*; | |
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 | ||
23 | struct VivoBlockDSP { | |
24 | dct_tab: [[f64; 64]; 64], | |
25 | } | |
26 | ||
27 | fn gen_coef(i: usize, j: usize) -> f64 { | |
28 | if i == 0 { | |
29 | 1.0 / 8.0f64.sqrt() | |
30 | } else { | |
31 | (((j as f64) + 0.5) * (i as f64) * std::f64::consts::PI / 8.0).cos() * 0.5 | |
32 | } | |
33 | } | |
34 | ||
35 | impl VivoBlockDSP { | |
36 | fn new() -> Self { | |
37 | let mut dct_tab = [[0.0; 64]; 64]; | |
38 | for i in 0..8 { | |
39 | for j in 0..8 { | |
40 | for k in 0..8 { | |
41 | for l in 0..8 { | |
42 | let c0 = gen_coef(i, k); | |
43 | let c1 = gen_coef(j, l); | |
44 | let c = c0 * c1 * 64.0; | |
45 | dct_tab[i * 8 + j][k * 8 + l] = c; | |
46 | } | |
47 | } | |
48 | } | |
49 | } | |
50 | Self { | |
51 | dct_tab | |
52 | } | |
53 | } | |
54 | } | |
55 | ||
56 | #[allow(clippy::erasing_op)] | |
57 | #[allow(clippy::identity_op)] | |
58 | fn deblock_hor(buf: &mut [u8], stride: usize, off: usize, clip_tab: &[i16; 64]) { | |
59 | for x in 0..8 { | |
60 | let p1 = i16::from(buf[off - 2 * stride + x]); | |
61 | let p0 = i16::from(buf[off - 1 * stride + x]); | |
62 | let q0 = i16::from(buf[off + 0 * stride + x]); | |
63 | let q1 = i16::from(buf[off + 1 * stride + x]); | |
64 | let diff = (3 * (p1 - q1) + 8 * (q0 - p0)) >> 4; | |
65 | if (diff != 0) && (diff > -32) && (diff < 32) { | |
66 | let delta = clip_tab[(diff + 32) as usize]; | |
67 | buf[off - 1 * stride + x] = (p0 + delta).max(0).min(255) as u8; | |
68 | buf[off + 0 * stride + x] = (q0 - delta).max(0).min(255) as u8; | |
69 | } | |
70 | } | |
71 | } | |
72 | ||
73 | #[allow(clippy::identity_op)] | |
74 | fn deblock_ver(buf: &mut [u8], stride: usize, off: usize, clip_tab: &[i16; 64]) { | |
75 | for y in 0..8 { | |
76 | let p1 = i16::from(buf[off - 2 + y * stride]); | |
77 | let p0 = i16::from(buf[off - 1 + y * stride]); | |
78 | let q0 = i16::from(buf[off + 0 + y * stride]); | |
79 | let q1 = i16::from(buf[off + 1 + y * stride]); | |
80 | let diff = (3 * (p1 - q1) + 8 * (q0 - p0)) >> 4; | |
81 | if (diff != 0) && (diff > -32) && (diff < 32) { | |
82 | let delta = clip_tab[(diff + 32) as usize]; | |
83 | buf[off - 1 + y * stride] = (p0 + delta).max(0).min(255) as u8; | |
84 | buf[off + y * stride] = (q0 - delta).max(0).min(255) as u8; | |
85 | } | |
86 | } | |
87 | } | |
88 | ||
89 | fn gen_clip_tab(clip_tab: &mut [i16; 64], q: u8) { | |
90 | let q = i16::from(q); | |
91 | *clip_tab = [0; 64]; | |
92 | let lim = (q + 2) >> 1; | |
93 | for i in 0..lim { | |
94 | clip_tab[(32 - i) as usize] = -i; | |
95 | clip_tab[(32 + i) as usize] = i; | |
96 | } | |
97 | for i in lim..q { | |
98 | let val = q - i; | |
99 | clip_tab[(32 - i) as usize] = -val; | |
100 | clip_tab[(32 + i) as usize] = val; | |
101 | } | |
102 | } | |
103 | ||
104 | impl BlockDSP for VivoBlockDSP { | |
105 | fn idct(&self, blk: &mut [i16; 64]) { | |
106 | let mut tmp = [0i32; 64]; | |
107 | for (i, &el) in blk.iter().enumerate() { | |
108 | if el != 0 { | |
109 | let cmat = self.dct_tab[i]; | |
110 | for (dst, &src) in tmp.iter_mut().zip(cmat.iter()) { | |
111 | *dst += (src * (el as f64)) as i32; | |
112 | } | |
113 | } | |
114 | } | |
115 | for (dst, &src) in blk.iter_mut().zip(tmp.iter()) { | |
116 | *dst = ((src + 0x20) >> 6) as i16; | |
117 | } | |
118 | } | |
119 | fn copy_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mv: MV) { | |
120 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; | |
121 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); | |
122 | ||
123 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); | |
124 | ||
125 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos, ypos, mv.x >> 1, mv.y >> 1, 16, 16, 0, 1, mode, H263_INTERP_FUNCS); | |
126 | 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); | |
127 | blockdsp::copy_block(&mut dst, src, 2, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_FUNCS); | |
128 | } | |
129 | fn copy_blocks8x8(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mvs: &[MV; 4]) { | |
130 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); | |
131 | ||
132 | for (i, mv) in mvs.iter().enumerate() { | |
133 | let xadd = (i & 1) * 8; | |
134 | let yadd = (i & 2) * 4; | |
135 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; | |
136 | ||
137 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos + xadd, ypos + yadd, mv.x >> 1, mv.y >> 1, 8, 8, 0, 1, mode, H263_INTERP_FUNCS); | |
138 | } | |
139 | ||
140 | let sum_mv = mvs[0] + mvs[1] + mvs[2] + mvs[3]; | |
141 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; | |
142 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; | |
143 | let mode = ((cmx & 1) + (cmy & 1) * 2) as usize; | |
144 | for plane in 1..3 { | |
145 | blockdsp::copy_block(&mut dst, src.clone(), plane, xpos >> 1, ypos >> 1, cmx >> 1, cmy >> 1, 8, 8, 0, 1, mode, H263_INTERP_FUNCS); | |
146 | } | |
147 | } | |
148 | fn avg_blocks(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mv: MV) { | |
149 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; | |
150 | let cmode = (if (mv.x & 3) != 0 { 1 } else { 0 }) + (if (mv.y & 3) != 0 { 2 } else { 0 }); | |
151 | ||
152 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); | |
153 | ||
154 | 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); | |
155 | 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); | |
156 | blockdsp::copy_block(&mut dst, src, 2, xpos >> 1, ypos >> 1, mv.x >> 2, mv.y >> 2, 8, 8, 0, 1, cmode, H263_INTERP_AVG_FUNCS); | |
157 | } | |
158 | fn avg_blocks8x8(&self, dst: &mut NAVideoBuffer<u8>, src: NAVideoBufferRef<u8>, xpos: usize, ypos: usize, mvs: &[MV; 4]) { | |
159 | let mut dst = NASimpleVideoFrame::from_video_buf(dst).unwrap(); | |
160 | ||
161 | for (i, mv) in mvs.iter().enumerate() { | |
162 | let xadd = (i & 1) * 8; | |
163 | let yadd = (i & 2) * 4; | |
164 | let mode = ((mv.x & 1) + (mv.y & 1) * 2) as usize; | |
165 | ||
166 | blockdsp::copy_block(&mut dst, src.clone(), 0, xpos + xadd, ypos + yadd, mv.x >> 1, mv.y >> 1, 8, 8, 0, 1, mode, H263_INTERP_AVG_FUNCS); | |
167 | } | |
168 | ||
169 | let sum_mv = mvs[0] + mvs[1] + mvs[2] + mvs[3]; | |
170 | let cmx = (sum_mv.x >> 3) + H263_CHROMA_ROUND[(sum_mv.x & 0xF) as usize]; | |
171 | let cmy = (sum_mv.y >> 3) + H263_CHROMA_ROUND[(sum_mv.y & 0xF) as usize]; | |
172 | let mode = ((cmx & 1) + (cmy & 1) * 2) as usize; | |
173 | for plane in 1..3 { | |
174 | 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); | |
175 | } | |
176 | } | |
177 | fn filter_row(&self, buf: &mut NAVideoBuffer<u8>, mb_y: usize, mb_w: usize, cbpi: &CBPInfo) { | |
178 | let ystride = buf.get_stride(0); | |
179 | let ustride = buf.get_stride(1); | |
180 | let vstride = buf.get_stride(2); | |
181 | let yoff = buf.get_offset(0) + mb_y * 16 * ystride; | |
182 | let uoff = buf.get_offset(1) + mb_y * 8 * ustride; | |
183 | let voff = buf.get_offset(2) + mb_y * 8 * vstride; | |
184 | let buf = buf.get_data_mut().unwrap(); | |
185 | ||
186 | let mut clip_tab = [0i16; 64]; | |
187 | let mut last_q = 0; | |
188 | let mut off = yoff; | |
189 | for mb_x in 0..mb_w { | |
190 | let q = cbpi.get_q(mb_w + mb_x); | |
191 | if q != last_q { | |
192 | gen_clip_tab(&mut clip_tab, q); | |
193 | last_q = q; | |
194 | } | |
195 | if mb_y != 0 { | |
196 | deblock_hor(buf, ystride, off, &clip_tab); | |
197 | deblock_hor(buf, ystride, off + 8, &clip_tab); | |
198 | } | |
199 | deblock_hor(buf, ystride, off + 8 * ystride, &clip_tab); | |
200 | deblock_hor(buf, ystride, off + 8 * ystride + 8, &clip_tab); | |
201 | off += 16; | |
202 | } | |
203 | let mut off = yoff; | |
204 | for mb_x in 0..mb_w { | |
205 | let q = cbpi.get_q(mb_w + mb_x); | |
206 | if q != last_q { | |
207 | gen_clip_tab(&mut clip_tab, q); | |
208 | last_q = q; | |
209 | } | |
210 | if mb_y != 0 { | |
211 | let qtop = cbpi.get_q(mb_x); | |
212 | if qtop != last_q { | |
213 | gen_clip_tab(&mut clip_tab, qtop); | |
214 | last_q = qtop; | |
215 | } | |
216 | if mb_x != 0 { | |
217 | deblock_ver(buf, ystride, off - 8 * ystride, &clip_tab); | |
218 | } | |
219 | deblock_ver(buf, ystride, off - 8 * ystride + 8, &clip_tab); | |
220 | } | |
221 | if mb_x != 0 { | |
222 | deblock_ver(buf, ystride, off, &clip_tab); | |
223 | deblock_ver(buf, ystride, off + 8, &clip_tab); | |
224 | } | |
225 | off += 16; | |
226 | } | |
227 | if mb_y != 0 { | |
228 | for mb_x in 0..mb_w { | |
229 | let q = cbpi.get_q(mb_w + mb_x); | |
230 | if q != last_q { | |
231 | gen_clip_tab(&mut clip_tab, q); | |
232 | last_q = q; | |
233 | } | |
234 | deblock_hor(buf, ustride, uoff + mb_x * 8, &clip_tab); | |
235 | deblock_hor(buf, vstride, voff + mb_x * 8, &clip_tab); | |
236 | } | |
237 | let offu = uoff - 8 * ustride; | |
238 | let offv = voff - 8 * vstride; | |
239 | for mb_x in 1..mb_w { | |
240 | let qt = cbpi.get_q(mb_x); | |
241 | if qt != last_q { | |
242 | gen_clip_tab(&mut clip_tab, qt); | |
243 | last_q = qt; | |
244 | } | |
245 | deblock_ver(buf, ustride, offu + mb_x * 8, &clip_tab); | |
246 | deblock_ver(buf, vstride, offv + mb_x * 8, &clip_tab); | |
247 | } | |
248 | } | |
249 | } | |
250 | } | |
251 | ||
252 | struct VivoDecoder { | |
253 | info: NACodecInfoRef, | |
254 | dec: H263BaseDecoder, | |
255 | tables: Tables, | |
256 | bdsp: VivoBlockDSP, | |
257 | lastframe: Option<NABufferType>, | |
258 | lastpts: Option<u64>, | |
259 | width: usize, | |
260 | height: usize, | |
261 | } | |
262 | ||
263 | struct VivoBR<'a> { | |
264 | br: BitReader<'a>, | |
265 | tables: &'a Tables, | |
266 | gob_no: usize, | |
267 | mb_w: usize, | |
268 | is_pb: bool, | |
269 | is_ipb: bool, | |
270 | ref_w: usize, | |
271 | ref_h: usize, | |
272 | aic: bool, | |
273 | } | |
274 | ||
275 | fn check_marker(br: &mut BitReader) -> DecoderResult<()> { | |
276 | let mark = br.read(1)?; | |
277 | validate!(mark == 1); | |
278 | Ok(()) | |
279 | } | |
280 | ||
281 | impl<'a> VivoBR<'a> { | |
282 | fn new(src: &'a [u8], tables: &'a Tables, ref_w: usize, ref_h: usize) -> Self { | |
283 | VivoBR { | |
284 | br: BitReader::new(src, BitReaderMode::BE), | |
285 | tables, | |
286 | gob_no: 0, | |
287 | mb_w: 0, | |
288 | is_pb: false, | |
289 | is_ipb: false, | |
290 | ref_w, ref_h, | |
291 | aic: false, | |
292 | } | |
293 | } | |
294 | ||
295 | fn decode_block(&mut self, quant: u8, intra: bool, coded: bool, blk: &mut [i16; 64], _plane_no: usize, acpred: ACPredMode) -> DecoderResult<()> { | |
296 | let br = &mut self.br; | |
297 | let mut idx = 0; | |
298 | if !self.aic && intra { | |
299 | let mut dc = br.read(8)? as i16; | |
300 | if dc == 255 { dc = 128; } | |
301 | blk[0] = dc << 3; | |
302 | idx = 1; | |
303 | } | |
304 | if !coded { return Ok(()); } | |
305 | let scan = match acpred { | |
306 | ACPredMode::Hor => H263_SCAN_V, | |
307 | ACPredMode::Ver => H263_SCAN_H, | |
308 | _ => &ZIGZAG, | |
309 | }; | |
310 | ||
311 | let rl_cb = if self.aic && intra { &self.tables.aic_rl_cb } else { &self.tables.rl_cb }; | |
312 | let q = i16::from(quant) * 2; | |
313 | let q_add = q >> 1; | |
314 | while idx < 64 { | |
315 | let code = br.read_cb(rl_cb)?; | |
316 | let run; | |
317 | let mut level; | |
318 | let last; | |
319 | if !code.is_escape() { | |
320 | run = code.get_run(); | |
321 | level = code.get_level(); | |
322 | last = code.is_last(); | |
323 | if br.read_bool()? { level = -level; } | |
324 | if !intra || !self.aic { | |
325 | if level >= 0 { | |
326 | level = (level * q) + q_add; | |
327 | } else { | |
328 | level = (level * q) - q_add; | |
329 | } | |
330 | } | |
331 | } else { | |
332 | last = br.read_bool()?; | |
333 | run = br.read(6)? as u8; | |
334 | level = br.read_s(8)? as i16; | |
335 | if level == -128 { | |
336 | let low = br.read(5)? as i16; | |
337 | let top = br.read_s(6)? as i16; | |
338 | level = (top << 5) | low; | |
339 | } | |
340 | if !intra || !self.aic { | |
341 | if level >= 0 { | |
342 | level = (level * q) + q_add; | |
343 | } else { | |
344 | level = (level * q) - q_add; | |
345 | } | |
346 | if level < -2048 { level = -2048; } | |
347 | if level > 2047 { level = 2047; } | |
348 | } | |
349 | } | |
350 | idx += run; | |
351 | validate!(idx < 64); | |
352 | let oidx = scan[idx as usize]; | |
353 | blk[oidx] = level; | |
354 | idx += 1; | |
355 | if last { break; } | |
356 | } | |
357 | Ok(()) | |
358 | } | |
359 | } | |
360 | ||
361 | fn decode_mv_component(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<i16> { | |
362 | let code = i16::from(br.read_cb(mv_cb)?); | |
363 | if code == 0 { return Ok(0) } | |
364 | if !br.read_bool()? { | |
365 | Ok(code) | |
366 | } else { | |
367 | Ok(-code) | |
368 | } | |
369 | } | |
370 | ||
371 | fn decode_mv(br: &mut BitReader, mv_cb: &Codebook<u8>) -> DecoderResult<MV> { | |
372 | let xval = decode_mv_component(br, mv_cb)?; | |
373 | let yval = decode_mv_component(br, mv_cb)?; | |
374 | Ok(MV::new(xval, yval)) | |
375 | } | |
376 | ||
377 | fn decode_b_info(br: &mut BitReader, is_pb: bool, is_ipb: bool, is_intra: bool) -> DecoderResult<BBlockInfo> { | |
378 | if is_pb { // as improved pb | |
379 | if is_ipb { | |
380 | let pb_mv_add = if is_intra { 1 } else { 0 }; | |
381 | if br.read_bool()?{ | |
382 | if br.read_bool()? { | |
383 | let pb_mv_count = 1 - (br.read(1)? as usize); | |
384 | let cbpb = br.read(6)? as u8; | |
385 | Ok(BBlockInfo::new(true, cbpb, pb_mv_count + pb_mv_add, pb_mv_count == 1)) | |
386 | } else { | |
387 | Ok(BBlockInfo::new(true, 0, 1 + pb_mv_add, true)) | |
388 | } | |
389 | } else { | |
390 | Ok(BBlockInfo::new(true, 0, pb_mv_add, false)) | |
391 | } | |
392 | } else { | |
393 | let mvdb = br.read_bool()?; | |
394 | let cbpb = if mvdb && br.read_bool()? { br.read(6)? as u8 } else { 0 }; | |
395 | Ok(BBlockInfo::new(true, cbpb, if mvdb { 1 } else { 0 }, false)) | |
396 | } | |
397 | } else { | |
398 | Ok(BBlockInfo::new(false, 0, 0, false)) | |
399 | } | |
400 | } | |
401 | ||
402 | impl<'a> BlockDecoder for VivoBR<'a> { | |
403 | ||
404 | #[allow(unused_variables)] | |
405 | #[allow(clippy::unreadable_literal)] | |
406 | fn decode_pichdr(&mut self) -> DecoderResult<PicInfo> { | |
407 | let br = &mut self.br; | |
408 | let syncw = br.read(22)?; | |
409 | validate!(syncw == 0x000020); | |
410 | let tr = (br.read(8)? << 8) as u16; | |
411 | check_marker(br)?; | |
412 | let id = br.read(1)?; | |
413 | validate!(id == 0); | |
414 | br.read(1)?; // split screen indicator | |
415 | br.read(1)?; // document camera indicator | |
416 | br.read(1)?; // freeze picture release | |
417 | let mut sfmt = br.read(3)?; | |
418 | validate!(sfmt != 0b000); | |
419 | let is_intra = !br.read_bool()?; | |
420 | let umv = br.read_bool()?; | |
421 | br.read(1)?; // syntax arithmetic coding | |
422 | let apm = br.read_bool()?; | |
423 | self.is_pb = br.read_bool()?; | |
424 | let deblock; | |
425 | let pbplus; | |
426 | let aic; | |
427 | if sfmt == 0b110 { | |
428 | sfmt = br.read(3)?; | |
429 | validate!(sfmt != 0b000 && sfmt != 0b110); | |
430 | aic = br.read_bool()?; | |
431 | deblock = br.read_bool()?; | |
432 | br.read(4)?; // unknown flags | |
433 | pbplus = br.read_bool()?; | |
434 | br.read(1)?; // unknown flag | |
435 | let _interlaced = br.read_bool()?; | |
436 | br.read(2)?; // unknown flags | |
437 | } else { | |
438 | aic = false; | |
439 | deblock = false; | |
440 | pbplus = false; | |
441 | } | |
442 | self.is_ipb = pbplus; | |
443 | let (w, h) = match sfmt { | |
444 | 0b001 => ( 64, 48), | |
445 | 0b011 => ( 88, 72), | |
446 | 0b010 => (176, 144), | |
447 | 0b100 => (352, 288), | |
448 | 0b101 => (704, 576), | |
449 | 0b111 => { | |
450 | validate!((self.ref_w != 0) && (self.ref_h != 0)); | |
451 | ((self.ref_w + 15) & !15, (self.ref_h + 15) & !15) | |
452 | }, | |
453 | _ => return Err(DecoderError::InvalidData), | |
454 | }; | |
455 | let quant = br.read(5)?; | |
456 | let cpm = br.read_bool()?; | |
457 | validate!(!cpm); | |
458 | ||
459 | let pbinfo; | |
460 | if self.is_pb { | |
461 | let trb = br.read(3)?; | |
462 | let dbquant = br.read(2)?; | |
463 | pbinfo = Some(PBInfo::new(trb as u8, dbquant as u8, pbplus)); | |
464 | } else { | |
465 | pbinfo = None; | |
466 | } | |
467 | while br.read_bool()? { // skip PEI | |
468 | br.read(8)?; | |
469 | } | |
470 | self.gob_no = 0; | |
471 | self.mb_w = (w + 15) >> 4; | |
472 | self.aic = aic; | |
473 | ||
474 | let ftype = if is_intra { Type::I } else { Type::P }; | |
475 | let plusinfo = Some(PlusInfo::new(aic, deblock, false, false)); | |
476 | let mvmode = if umv { MVMode::UMV } else { MVMode::Old }; | |
477 | let picinfo = PicInfo::new(w, h, ftype, mvmode, umv, apm, quant as u8, tr, pbinfo, plusinfo); | |
478 | Ok(picinfo) | |
479 | } | |
480 | ||
481 | #[allow(unused_variables)] | |
482 | fn decode_slice_header(&mut self, info: &PicInfo) -> DecoderResult<SliceInfo> { | |
483 | let br = &mut self.br; | |
484 | let gbsc = br.read(17)?; | |
485 | validate!(gbsc == 1); | |
486 | let gn = br.read(5)?; | |
487 | let gfid = br.read(2)?; | |
488 | let gquant = br.read(5)?; | |
489 | let ret = SliceInfo::new_gob(0, self.gob_no, gquant as u8); | |
490 | self.gob_no += 1; | |
491 | Ok(ret) | |
492 | } | |
493 | ||
494 | #[allow(unused_variables)] | |
495 | fn decode_block_header(&mut self, info: &PicInfo, slice: &SliceInfo, sstate: &SliceState) -> DecoderResult<BlockInfo> { | |
496 | let br = &mut self.br; | |
497 | let mut q = slice.get_quant(); | |
498 | match info.get_mode() { | |
499 | Type::I => { | |
500 | let mut cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; | |
501 | while cbpc == 8 { cbpc = br.read_cb(&self.tables.intra_mcbpc_cb)?; } | |
502 | let mut acpred = ACPredMode::None; | |
503 | if let Some(ref pi) = info.plusinfo { | |
504 | if pi.aic { | |
505 | let acpp = br.read_bool()?; | |
506 | acpred = ACPredMode::DC; | |
507 | if acpp { | |
508 | acpred = if !br.read_bool()? { ACPredMode::Hor } else { ACPredMode::Ver }; | |
509 | } | |
510 | } | |
511 | } | |
512 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; | |
513 | let cbp = (cbpy << 2) | (cbpc & 3); | |
514 | let dquant = (cbpc & 4) != 0; | |
515 | if dquant { | |
516 | let idx = br.read(2)? as usize; | |
517 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; | |
518 | } | |
519 | let mut binfo = BlockInfo::new(Type::I, cbp, q); | |
520 | binfo.set_acpred(acpred); | |
521 | Ok(binfo) | |
522 | }, | |
523 | Type::P => { | |
524 | if br.read_bool()? { return Ok(BlockInfo::new(Type::Skip, 0, info.get_quant())); } | |
525 | let mut cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; | |
526 | while cbpc == 20 { cbpc = br.read_cb(&self.tables.inter_mcbpc_cb)?; } | |
527 | let is_intra = (cbpc & 0x04) != 0; | |
528 | let dquant = (cbpc & 0x08) != 0; | |
529 | let is_4x4 = (cbpc & 0x10) != 0; | |
530 | if is_intra { | |
531 | let mut acpred = ACPredMode::None; | |
532 | if let Some(ref pi) = info.plusinfo { | |
533 | if pi.aic { | |
534 | let acpp = br.read_bool()?; | |
535 | acpred = ACPredMode::DC; | |
536 | if acpp { | |
537 | acpred = if !br.read_bool()? { ACPredMode::Hor } else { ACPredMode::Ver }; | |
538 | } | |
539 | } | |
540 | } | |
541 | let mut mvec: Vec<MV> = Vec::new(); | |
542 | let bbinfo = decode_b_info(br, self.is_pb, self.is_ipb, true)?; | |
543 | let cbpy = br.read_cb(&self.tables.cbpy_cb)?; | |
544 | let cbp = (cbpy << 2) | (cbpc & 3); | |
545 | if dquant { | |
546 | let idx = br.read(2)? as usize; | |
547 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; | |
548 | } | |
549 | let mut binfo = BlockInfo::new(Type::I, cbp, q); | |
550 | binfo.set_bpart(bbinfo); | |
551 | binfo.set_acpred(acpred); | |
552 | if self.is_pb { | |
553 | for _ in 0..bbinfo.get_num_mv() { | |
554 | mvec.push(decode_mv(br, &self.tables.mv_cb)?); | |
555 | } | |
556 | binfo.set_b_mv(mvec.as_slice()); | |
557 | } | |
558 | return Ok(binfo); | |
559 | } | |
560 | ||
561 | let bbinfo = decode_b_info(br, self.is_pb, self.is_ipb, false)?; | |
562 | let mut cbpy = br.read_cb(&self.tables.cbpy_cb)?; | |
563 | // if /* !aiv && */(cbpc & 3) != 3 { | |
564 | cbpy ^= 0xF; | |
565 | // } | |
566 | let cbp = (cbpy << 2) | (cbpc & 3); | |
567 | if dquant { | |
568 | let idx = br.read(2)? as usize; | |
569 | q = (i16::from(q) + i16::from(H263_DQUANT_TAB[idx])) as u8; | |
570 | } | |
571 | let mut binfo = BlockInfo::new(Type::P, cbp, q); | |
572 | binfo.set_bpart(bbinfo); | |
573 | if !is_4x4 { | |
574 | let mvec: [MV; 1] = [decode_mv(br, &self.tables.mv_cb)?]; | |
575 | binfo.set_mv(&mvec); | |
576 | } else { | |
577 | let mvec: [MV; 4] = [ | |
578 | decode_mv(br, &self.tables.mv_cb)?, | |
579 | decode_mv(br, &self.tables.mv_cb)?, | |
580 | decode_mv(br, &self.tables.mv_cb)?, | |
581 | decode_mv(br, &self.tables.mv_cb)? | |
582 | ]; | |
583 | binfo.set_mv(&mvec); | |
584 | } | |
585 | if self.is_pb { | |
586 | let mut mvec: Vec<MV> = Vec::with_capacity(bbinfo.get_num_mv()); | |
587 | for _ in 0..bbinfo.get_num_mv() { | |
588 | let mv = decode_mv(br, &self.tables.mv_cb)?; | |
589 | mvec.push(mv); | |
590 | } | |
591 | binfo.set_b_mv(mvec.as_slice()); | |
592 | } | |
593 | Ok(binfo) | |
594 | }, | |
595 | _ => Err(DecoderError::InvalidData), | |
596 | } | |
597 | } | |
598 | ||
599 | #[allow(unused_variables)] | |
600 | fn decode_block_intra(&mut self, info: &BlockInfo, _sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { | |
601 | self.decode_block(quant, true, coded, blk, if no < 4 { 0 } else { no - 3 }, info.get_acpred()) | |
602 | } | |
603 | ||
604 | #[allow(unused_variables)] | |
605 | fn decode_block_inter(&mut self, info: &BlockInfo, _sstate: &SliceState, quant: u8, no: usize, coded: bool, blk: &mut [i16; 64]) -> DecoderResult<()> { | |
606 | self.decode_block(quant, false, coded, blk, if no < 4 { 0 } else { no - 3 }, ACPredMode::None) | |
607 | } | |
608 | ||
609 | fn is_slice_end(&mut self) -> bool { self.br.peek(16) == 0 } | |
610 | } | |
611 | ||
612 | impl VivoDecoder { | |
613 | fn new() -> Self { | |
614 | let mut coderead = H263ShortCodeReader::new(H263_INTRA_MCBPC); | |
615 | let intra_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
616 | let mut coderead = H263ShortCodeReader::new(H263_INTER_MCBPC); | |
617 | let inter_mcbpc_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
618 | let mut coderead = H263ShortCodeReader::new(H263_CBPY); | |
619 | let cbpy_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
620 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES); | |
621 | let rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
622 | let mut coderead = H263RLCodeReader::new(H263_RL_CODES_AIC); | |
623 | let aic_rl_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
624 | let mut coderead = H263ShortCodeReader::new(H263_MV); | |
625 | let mv_cb = Codebook::new(&mut coderead, CodebookMode::MSB).unwrap(); | |
626 | let tables = Tables { | |
627 | intra_mcbpc_cb, | |
628 | inter_mcbpc_cb, | |
629 | cbpy_cb, | |
630 | rl_cb, | |
631 | aic_rl_cb, | |
632 | mv_cb, | |
633 | }; | |
634 | ||
635 | VivoDecoder{ | |
636 | info: NACodecInfo::new_dummy(), | |
637 | dec: H263BaseDecoder::new_with_opts(H263DEC_OPT_SLICE_RESET | H263DEC_OPT_USES_GOB | H263DEC_OPT_PRED_QUANT), | |
638 | tables, | |
639 | bdsp: VivoBlockDSP::new(), | |
640 | lastframe: None, | |
641 | lastpts: None, | |
642 | width: 0, | |
643 | height: 0, | |
644 | } | |
645 | } | |
646 | } | |
647 | ||
648 | impl NADecoder for VivoDecoder { | |
649 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { | |
650 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { | |
651 | let w = vinfo.get_width(); | |
652 | let h = vinfo.get_height(); | |
653 | let fmt = formats::YUV420_FORMAT; | |
654 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(w, h, false, fmt)); | |
655 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref(); | |
656 | self.width = w; | |
657 | self.height = h; | |
658 | Ok(()) | |
659 | } else { | |
660 | Err(DecoderError::InvalidData) | |
661 | } | |
662 | } | |
663 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { | |
664 | let src = pkt.get_buffer(); | |
665 | ||
666 | if src.len() == 0 { | |
667 | let buftype; | |
668 | let ftype; | |
669 | if self.lastframe.is_none() { | |
670 | buftype = NABufferType::None; | |
671 | ftype = FrameType::Skip; | |
672 | } else { | |
673 | let mut buf = None; | |
674 | std::mem::swap(&mut self.lastframe, &mut buf); | |
675 | buftype = buf.unwrap(); | |
676 | ftype = FrameType::B; | |
677 | } | |
678 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), buftype); | |
679 | frm.set_keyframe(false); | |
680 | frm.set_frame_type(ftype); | |
681 | if self.lastpts.is_some() { | |
682 | frm.set_pts(self.lastpts); | |
683 | self.lastpts = None; | |
684 | } | |
685 | return Ok(frm.into_ref()); | |
686 | } | |
687 | let mut ibr = VivoBR::new(&src, &self.tables, self.width, self.height); | |
688 | ||
689 | let bufinfo = self.dec.parse_frame(&mut ibr, &self.bdsp)?; | |
690 | ||
691 | let mut cur_pts = pkt.get_pts(); | |
692 | if !self.dec.is_intra() { | |
693 | let bret = self.dec.get_bframe(&self.bdsp); | |
694 | if let Ok(b_buf) = bret { | |
695 | self.lastframe = Some(b_buf); | |
696 | self.lastpts = pkt.get_pts(); | |
697 | if let Some(pts) = pkt.get_pts() { | |
698 | cur_pts = Some(pts + 1); | |
699 | } | |
700 | } | |
701 | } | |
702 | ||
703 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo); | |
704 | frm.set_keyframe(self.dec.is_intra()); | |
705 | frm.set_frame_type(if self.dec.is_intra() { FrameType::I } else { FrameType::P }); | |
706 | frm.set_pts(cur_pts); | |
707 | Ok(frm.into_ref()) | |
708 | } | |
709 | fn flush(&mut self) { | |
710 | self.dec.flush(); | |
711 | } | |
712 | } | |
713 | ||
714 | impl NAOptionHandler for VivoDecoder { | |
715 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
716 | fn set_options(&mut self, _options: &[NAOption]) { } | |
717 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
718 | } | |
719 | ||
720 | ||
721 | pub fn get_decoder() -> Box<dyn NADecoder + Send> { | |
722 | Box::new(VivoDecoder::new()) | |
723 | } | |
724 | ||
725 | #[cfg(test)] | |
726 | mod test { | |
727 | use nihav_core::codecs::RegisteredDecoders; | |
728 | use nihav_core::demuxers::RegisteredDemuxers; | |
729 | use nihav_codec_support::test::dec_video::*; | |
730 | use crate::vivo_register_all_decoders; | |
731 | use crate::vivo_register_all_demuxers; | |
732 | // samples from https://samples.mplayerhq.hu/vivo/ | |
733 | #[test] | |
734 | fn test_vivo1() { | |
735 | let mut dmx_reg = RegisteredDemuxers::new(); | |
736 | vivo_register_all_demuxers(&mut dmx_reg); | |
737 | let mut dec_reg = RegisteredDecoders::new(); | |
738 | vivo_register_all_decoders(&mut dec_reg); | |
739 | ||
740 | test_decoding("vivo", "vivo1", "assets/Misc/gr_al.viv", Some(16), | |
741 | &dmx_reg, &dec_reg, ExpectedTestResult::MD5Frames(vec![ | |
742 | [0x59ea0837, 0xdf9b5ca3, 0x73cd45c3, 0xaaf2fbf1], | |
743 | [0x5d21c5a0, 0xfb335c4f, 0xe30945e9, 0xec65d54f], | |
744 | [0x46916c45, 0x406f1019, 0xba0105e0, 0xfccd0aab], | |
745 | [0x11006812, 0xb8e8c959, 0x5f69950b, 0x3578db5e], | |
746 | [0xd0b84c1e, 0xad327825, 0x4a98dbbe, 0x48edc280], | |
747 | [0xe1be71a4, 0xc7649922, 0x949496a6, 0xed697d09], | |
748 | [0x0ed9deea, 0x3e9b9784, 0x4836e38b, 0x363f8108], | |
749 | [0x358f2581, 0x95e6b290, 0x35ffde28, 0x003fa23e], | |
750 | [0x482385bd, 0x43bb7cee, 0xf1900758, 0x3b5f1255], | |
751 | [0x91d7549f, 0x96976ef4, 0xb2920f71, 0x71c7a9a6], | |
752 | [0x95736d4f, 0x56748245, 0x5733bd5d, 0x20eacf6d], | |
753 | [0xb5045185, 0x55dbe063, 0xb1c96f24, 0xe5d78296], | |
754 | [0xa88cadf4, 0xedc4a0aa, 0xbb359ed8, 0x1ea28916], | |
755 | [0x4d9f9491, 0x13d29319, 0x57aef355, 0x7e0c9e0b], | |
756 | [0xc3b52284, 0xabb74a4b, 0xf03c9503, 0x834d149e], | |
757 | [0x35fc95d0, 0x0f583ef0, 0xb176f055, 0xb587839a], | |
758 | [0xd5e3b443, 0x3b11b285, 0x78ec3098, 0xe2109aaa]])); | |
759 | } | |
760 | #[test] | |
761 | fn test_vivo2() { | |
762 | let mut dmx_reg = RegisteredDemuxers::new(); | |
763 | vivo_register_all_demuxers(&mut dmx_reg); | |
764 | let mut dec_reg = RegisteredDecoders::new(); | |
765 | vivo_register_all_decoders(&mut dec_reg); | |
766 | ||
767 | test_decoding("vivo", "vivo2", "assets/Misc/02-KimagureOrangeRoad.viv", Some(56), | |
768 | &dmx_reg, &dec_reg, ExpectedTestResult::MD5Frames(vec![ | |
769 | [0x73f2afc2, 0x1cc43762, 0xbcfa886d, 0x7e607dd1], | |
770 | [0x45652ef5, 0x7c03046c, 0xcef60a62, 0x4a1e8f24], | |
771 | [0x09f6557e, 0x852cf108, 0x13dbb6ff, 0xaa8667e9], | |
772 | [0x3668d658, 0xfdc37a56, 0x267cb690, 0xa33924ee], | |
773 | [0x0ad13447, 0x26315ca3, 0xfbf43f79, 0xc3951941], | |
774 | [0x8c870462, 0x9135c664, 0x586accfa, 0xfe6d9113], | |
775 | [0x26b08477, 0xcdef5073, 0x86899b3c, 0x0d911f1d], | |
776 | [0x7db88b9c, 0x780729bb, 0xe3195f66, 0xb4f2e7e7], | |
777 | [0x9008ed4e, 0x29b05b6c, 0x3f8a2c23, 0x6d396334], | |
778 | [0xa255e91b, 0x324b764b, 0x265a08ea, 0x0a5a6ae7], | |
779 | [0xf2110e23, 0x8fa53178, 0x675c32cb, 0x63ba9297], | |
780 | [0xbe0bb384, 0xde08646e, 0x45d3530c, 0xd5cdf571], | |
781 | [0xfa19949a, 0xb9e12931, 0xcaa98f06, 0xa284718a], | |
782 | [0x9b1472e5, 0x2d18472c, 0xd5419a58, 0xff16d619], | |
783 | [0xeecd4532, 0xa6301dcc, 0x6eed2b15, 0xa456cae0], | |
784 | [0xb58b2bb8, 0x1c07bd9a, 0x1913e1c3, 0xa1f4fdc2], | |
785 | [0x51b6bef2, 0xd155d675, 0xaba07c15, 0xcf0a673e], | |
786 | [0x3c607ce6, 0x3a203449, 0xdda5b7a0, 0x9119b738], | |
787 | [0x7e7bae10, 0x4beb488e, 0x33db98bb, 0x8b49311e], | |
788 | [0xfff04316, 0xe29afa50, 0xa6f0c921, 0x5b0d29e2], | |
789 | [0xe640595a, 0x98bb55a4, 0x50c0a1e5, 0xe4970206], | |
790 | [0x63873ec7, 0x03a5fd08, 0xe3154f25, 0xb4ed64c2], | |
791 | [0xfa792148, 0x7efebf2c, 0x88d91825, 0x9dce368d], | |
792 | [0x5ed17368, 0x0e056059, 0x2c872282, 0xe5a98237], | |
793 | [0xd7ed6bd6, 0x01414003, 0x5187d790, 0x0af5b029], | |
794 | [0x2991a9c6, 0x8e2dda24, 0xfbf79bbb, 0xbcbfc672], | |
795 | [0xf2d23c64, 0xeb7e6094, 0x70a54901, 0x6d9d0204], | |
796 | [0x54997451, 0xb4edb3c0, 0x5a873e8f, 0xe89d7aa6], | |
797 | [0x94325a5f, 0xe0feb4b3, 0x2b1860bc, 0xc6b6a1a4], | |
798 | [0x8fd428de, 0x17f14f9f, 0x94c8d0da, 0xf9feda90], | |
799 | [0xed90d455, 0x22745327, 0x0ac511f1, 0x2dc2c29e], | |
800 | [0xc50ac6c1, 0xc9eaf8ec, 0x5d9dc7f3, 0x4e55fd09], | |
801 | [0x51325c40, 0xa7c01917, 0xdc064cc6, 0x143badc1], | |
802 | [0x3fc207ee, 0x2c4b0f91, 0x66555499, 0xdf6dc148], | |
803 | [0xd6e7fa33, 0x68ba6ce9, 0x45cac834, 0x1d51b094], | |
804 | [0x1ed541a8, 0x8dd0cc41, 0x149024d4, 0x13777a2e], | |
805 | [0x7fcbd065, 0xb20e068f, 0x9a5e3ed5, 0x6c35dded], | |
806 | [0x07ea66c1, 0xbfadea3b, 0x07bb6580, 0xf40d7d2f], | |
807 | [0x2e0fe75e, 0xa03d3011, 0x539c097d, 0x95fb265c], | |
808 | [0x2f177f09, 0x63b7172a, 0xb0fdd893, 0xcab516cf], | |
809 | [0x7cc5a956, 0xcd1ecff1, 0xf927038c, 0xa0610b48], | |
810 | [0xc0518934, 0xf5c38e4b, 0x7fa255cd, 0x9b054c5b], | |
811 | [0x0551de82, 0x08253d6b, 0x9144ced8, 0xc5adda55], | |
812 | [0xf45735b5, 0x3f2e2111, 0x54d1ff16, 0xe4866157], | |
813 | [0x0aad101e, 0xd37001f4, 0xd5734080, 0xfa4cf449], | |
814 | [0x65318bdd, 0x68809e67, 0x1e27946a, 0x2ca977e5], | |
815 | [0x119cf864, 0x8834473e, 0x721a253e, 0x4e417f19], | |
816 | [0x0d887145, 0xa42a05cc, 0x64a4388e, 0xa05de81d], | |
817 | [0xc184105a, 0x71ac7a8e, 0xaab0dba5, 0x078a331e], | |
818 | [0x078827ea, 0x27670e40, 0x92be9ebb, 0x0fc1f5a0], | |
819 | [0x8c82ca58, 0xbae0a643, 0x845afc5b, 0x15052a84], | |
820 | [0x92065c13, 0x69d3f6b7, 0x7270aab9, 0xb80921fd], | |
821 | [0xa58536b5, 0x6c46d7e1, 0x5f07f282, 0x350900e9], | |
822 | [0x13bf3f52, 0x71f8aa99, 0x97e0aaa5, 0xd6c1cff5], | |
823 | [0xa760cf95, 0xeb33c24c, 0x8dd35c6a, 0x4d81c8b5], | |
824 | [0x50f68b90, 0x41b1f1a0, 0x9847b3ec, 0x1cab5ccc], | |
825 | [0xbd71de9e, 0xc097b4ac, 0x003ab1e5, 0x9394b5bd]])); | |
826 | } | |
827 | } |