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1 | use nihav_core::codecs::*; | |
2 | use nihav_core::io::byteio::*; | |
3 | ||
4 | type UnpackedPixel = [u16; 4]; | |
5 | ||
6 | fn map_quality(quality: u8) -> (u32, u32) { | |
7 | if quality == 0 { | |
8 | (0, 0) | |
9 | } else { | |
10 | let skip_threshold = (10 - (u32::from(quality) / 10).min(10)) * 8; | |
11 | let fill_threshold = (10 - (u32::from(quality) / 10).min(10)) * 16; | |
12 | (skip_threshold, fill_threshold) | |
13 | } | |
14 | } | |
15 | ||
16 | trait PixelOps { | |
17 | fn unpack(&self) -> UnpackedPixel; | |
18 | fn dist<T: PixelOps>(&self, val: T) -> u32 { | |
19 | dist_core(self.unpack(), &val.unpack()) | |
20 | } | |
21 | } | |
22 | ||
23 | impl PixelOps for u16 { | |
24 | fn unpack(&self) -> UnpackedPixel { | |
25 | let val = *self; | |
26 | let r = (val >> 10) & 0x1F; | |
27 | let g = (val >> 5) & 0x1F; | |
28 | let b = val & 0x1F; | |
29 | [r, g, b, rgb2y(r, g, b)] | |
30 | } | |
31 | } | |
32 | ||
33 | fn dist_core(val: UnpackedPixel, other: &UnpackedPixel) -> u32 { | |
34 | let sum = val.iter().zip(other.iter()).take(3).fold(0i32, | |
35 | |acc, (&a, &b)| { | |
36 | let diff = i32::from(a) - i32::from(b); | |
37 | acc + diff * diff | |
38 | }); | |
39 | sum as u32 | |
40 | } | |
41 | ||
42 | ||
43 | fn rgb2y(r: u16, g: u16, b: u16) -> u16 { | |
44 | (r * 77 + g * 150 + b * 29) >> 8 | |
45 | } | |
46 | ||
47 | fn pack_rgb555(val: UnpackedPixel) -> u16 { | |
48 | (val[0] << 10) | (val[1] << 5) | val[2] | |
49 | } | |
50 | ||
51 | #[derive(Default)] | |
52 | struct PixelAverage { | |
53 | sum: UnpackedPixel, | |
54 | count: u16, | |
55 | } | |
56 | ||
57 | impl PixelAverage { | |
58 | fn new() -> Self { Self::default() } | |
59 | fn add(&mut self, val: &UnpackedPixel) { | |
60 | for (dst, &src) in self.sum.iter_mut().zip(val.iter()) { | |
61 | *dst += src; | |
62 | } | |
63 | self.count += 1; | |
64 | } | |
65 | fn get_avg(&self) -> UnpackedPixel { | |
66 | if self.count > 0 { | |
67 | let mut ret = self.sum; | |
68 | for el in ret.iter_mut() { | |
69 | *el /= self.count; | |
70 | } | |
71 | ret | |
72 | } else { | |
73 | [0; 4] | |
74 | } | |
75 | } | |
76 | } | |
77 | ||
78 | macro_rules! quant_template { | |
79 | ($name:ident, $N:expr) => { | |
80 | fn $name(pix: &[UnpackedPixel; $N]) -> ([UnpackedPixel; 2], u16, u32) { | |
81 | let mut avg = PixelAverage::new(); | |
82 | let mut maxv = [0; 4]; | |
83 | let mut minv = [255; 4]; | |
84 | for src in pix.iter() { | |
85 | avg.add(src); | |
86 | for ((maxv, minv), &comp) in maxv.iter_mut().zip(minv.iter_mut()).zip(src.iter()) { | |
87 | *maxv = (*maxv).max(comp); | |
88 | *minv = (*minv).min(comp); | |
89 | } | |
90 | } | |
91 | let avg = avg.get_avg(); | |
92 | ||
93 | let mut best_axis = 3; | |
94 | let mut best_dist = maxv[3] - minv[3]; | |
95 | for (comp_no, (&minval, &maxval)) in minv.iter().zip(maxv.iter()).enumerate().take(3) { | |
96 | if maxval - minval > best_dist { | |
97 | best_axis = comp_no; | |
98 | best_dist = maxval - minval; | |
99 | } | |
100 | } | |
101 | if best_dist == 0 { | |
102 | let mut dist = 0; | |
103 | for el in pix.iter() { | |
104 | dist += dist_core(avg, el); | |
105 | } | |
106 | return ([avg; 2], 0, dist); | |
107 | } | |
108 | ||
109 | let mut avg1 = PixelAverage::new(); | |
110 | let mut avg2 = PixelAverage::new(); | |
111 | let mut mask = 0; | |
112 | let mut mask_bit = 1; | |
113 | for clr in pix.iter() { | |
114 | if clr[best_axis] > avg[best_axis] { | |
115 | avg2.add(clr); | |
116 | mask |= mask_bit; | |
117 | } else { | |
118 | avg1.add(clr); | |
119 | } | |
120 | mask_bit <<= 1; | |
121 | } | |
122 | ||
123 | let clr0 = avg1.get_avg(); | |
124 | let clr1 = avg2.get_avg(); | |
125 | let mut dist = 0; | |
126 | for clr in pix.iter() { | |
127 | let dist0 = dist_core(clr0, clr); | |
128 | let dist1 = dist_core(clr1, clr); | |
129 | dist += dist0.min(dist1); | |
130 | } | |
131 | ([clr0, clr1], mask, dist) | |
132 | } | |
133 | } | |
134 | } | |
135 | ||
136 | quant_template!(quant2_16pix, 16); | |
137 | quant_template!(quant2_4pix, 4); | |
138 | ||
139 | #[derive(Default)] | |
140 | struct BlockState { | |
141 | fill_dist: u32, | |
142 | fill_val: UnpackedPixel, | |
143 | clr2_dist: u32, | |
144 | clr2_flags: u16, | |
145 | clr2: [UnpackedPixel; 2], | |
146 | clr8_dist: u32, | |
147 | clr8_flags: u16, | |
148 | clr8: [[UnpackedPixel; 2]; 4], | |
149 | pal_mode: bool, | |
150 | } | |
151 | ||
152 | impl BlockState { | |
153 | fn set_fill_val(&mut self, val: UnpackedPixel) { | |
154 | self.fill_val = val; | |
155 | if !self.pal_mode { | |
156 | self.fill_val[0] &= !1; | |
157 | } | |
158 | } | |
159 | fn calc_clrs(buf: &[UnpackedPixel; 16]) -> (Option<UnpackedPixel>, Option<UnpackedPixel>) { | |
160 | let clr0 = buf[0]; | |
161 | let mut clr1 = clr0; | |
162 | let mut single = true; | |
163 | for &pix in buf[1..].iter() { | |
164 | if pix != clr0 { | |
165 | if single { | |
166 | clr1 = pix; | |
167 | single = false; | |
168 | } else if pix != clr1 { | |
169 | return (None, None); | |
170 | } | |
171 | } | |
172 | } | |
173 | if !single { | |
174 | (Some(clr0), Some(clr1)) | |
175 | } else { | |
176 | (Some(clr0), None) | |
177 | } | |
178 | } | |
179 | fn calc_stats(&mut self, buf: &[UnpackedPixel; 16]) { | |
180 | let mut filled = false; | |
181 | let mut two_clr = false; | |
182 | match Self::calc_clrs(buf) { | |
183 | (Some(clr0), Some(clr1)) => { | |
184 | self.clr2[0] = clr0; | |
185 | self.clr2[1] = clr1; | |
186 | two_clr = true; | |
187 | }, | |
188 | (Some(clr0), None) => { | |
189 | self.clr2[0] = clr0; | |
190 | self.clr2[1] = clr0; | |
191 | self.set_fill_val(buf[0]); | |
192 | filled = true; | |
193 | two_clr = true; | |
194 | }, | |
195 | _ => {}, | |
196 | }; | |
197 | self.fill_dist = 0; | |
198 | if !filled { | |
199 | let mut avg = PixelAverage::new(); | |
200 | for pix in buf.iter() { | |
201 | avg.add(pix); | |
202 | } | |
203 | self.set_fill_val(avg.get_avg()); | |
204 | for pix in buf.iter() { | |
205 | self.fill_dist += dist_core(self.fill_val, pix); | |
206 | } | |
207 | } | |
208 | if self.fill_dist == 0 { | |
209 | self.clr2_dist = std::u32::MAX; | |
210 | self.clr8_dist = std::u32::MAX; | |
211 | return; | |
212 | } | |
213 | ||
214 | self.clr2_flags = 0u16; | |
215 | if two_clr { | |
216 | let mut mask = 1; | |
217 | self.clr2_dist = 0; | |
218 | for &pix in buf.iter() { | |
219 | if pix == self.clr2[0] { | |
220 | self.clr2_flags |= mask; | |
221 | } else { | |
222 | } | |
223 | mask <<= 1; | |
224 | } | |
225 | if (self.clr2_flags & 0x8000) != 0 { | |
226 | self.clr2_flags = !self.clr2_flags; | |
227 | self.clr2.swap(0, 1); | |
228 | } | |
229 | } else { | |
230 | let (clrs, mask, dist) = quant2_16pix(&buf); | |
231 | self.clr2 = clrs; | |
232 | self.clr2_flags = mask; | |
233 | self.clr2_dist = dist; | |
234 | if (self.clr2_flags & 0x8000) != 0 { | |
235 | self.clr2_flags = !self.clr2_flags; | |
236 | self.clr2.swap(0, 1); | |
237 | } | |
238 | } | |
239 | if self.clr2_dist == 0 { | |
240 | self.clr8_dist = std::u32::MAX; | |
241 | return; | |
242 | } | |
243 | ||
244 | self.clr8 = [[UnpackedPixel::default(); 2]; 4]; | |
245 | self.clr8_flags = 0; | |
246 | self.clr8_dist = 0; | |
247 | for i in 0..4 { | |
248 | let off = (i & 1) * 2 + (i & 2) * 4; | |
249 | let src2 = [buf[off], buf[off + 1], buf[off + 4], buf[off + 5]]; | |
250 | let (clrs, mask, dist) = quant2_4pix(&src2); | |
251 | self.clr8[i] = clrs; | |
252 | self.clr8_flags |= mask << (i * 4); | |
253 | self.clr8_dist += dist; | |
254 | } | |
255 | if (self.clr8_flags & 0x8000) != 0 { | |
256 | self.clr8_flags ^= 0xF000; | |
257 | self.clr8[3].swap(0, 1); | |
258 | } | |
259 | } | |
260 | } | |
261 | ||
262 | struct BlockPainter15 {} | |
263 | impl BlockPainter15 { | |
264 | fn new() -> Self { Self{} } | |
265 | fn put_fill(&self, bstate: &BlockState, dst: &mut [u16], dstride: usize) -> u16 { | |
266 | let fill_val = pack_rgb555(bstate.fill_val); | |
267 | for line in dst.chunks_mut(dstride) { | |
268 | for i in 0..4 { | |
269 | line[i] = fill_val; | |
270 | } | |
271 | } | |
272 | fill_val | |
273 | } | |
274 | fn put_clr2(&self, bstate: &BlockState, dst: &mut [u16], dstride: usize) -> [u16; 2] { | |
275 | let clr2 = [pack_rgb555(bstate.clr2[0]), pack_rgb555(bstate.clr2[1])]; | |
276 | for j in 0..4 { | |
277 | for i in 0..4 { | |
278 | if (bstate.clr2_flags & (1 << (i + j * 4))) == 0 { | |
279 | dst[i + j * dstride] = clr2[0]; | |
280 | } else { | |
281 | dst[i + j * dstride] = clr2[1]; | |
282 | } | |
283 | } | |
284 | } | |
285 | clr2 | |
286 | } | |
287 | fn put_clr8(&self, bstate: &BlockState, dst: &mut [u16], dstride: usize) -> [[u16; 4]; 4] { | |
288 | let mut clr8 = [[0; 4]; 4]; | |
289 | for (dst, src) in clr8.iter_mut().zip(bstate.clr8.iter()) { | |
290 | for (dst, &src) in dst.iter_mut().zip(src.iter()) { | |
291 | *dst = pack_rgb555(src); | |
292 | } | |
293 | } | |
294 | for i in 0..4 { | |
295 | let off = (i & 1) * 2 + (i & 2) * dstride; | |
296 | let cur_flg = (bstate.clr8_flags >> (i * 4)) & 0xF; | |
297 | dst[off] = clr8[i][( !cur_flg & 1) as usize]; | |
298 | dst[off + 1] = clr8[i][((!cur_flg >> 1) & 1) as usize]; | |
299 | dst[off + dstride] = clr8[i][((!cur_flg >> 2) & 1) as usize]; | |
300 | dst[off + 1 + dstride] = clr8[i][((!cur_flg >> 3) & 1) as usize]; | |
301 | } | |
302 | clr8 | |
303 | } | |
304 | } | |
305 | ||
306 | struct BlockWriter15 {} | |
307 | impl BlockWriter15 { | |
308 | fn write_fill(bw: &mut ByteWriter, fill_val: u16) -> EncoderResult<()> { | |
309 | bw.write_u16le(fill_val | 0x8000)?; | |
310 | Ok(()) | |
311 | } | |
312 | fn write_clr2(bw: &mut ByteWriter, clr2_flags: u16, clr2: [u16; 2]) -> EncoderResult<()> { | |
313 | bw.write_u16le(clr2_flags)?; | |
314 | bw.write_u16le(clr2[0])?; | |
315 | bw.write_u16le(clr2[1])?; | |
316 | Ok(()) | |
317 | } | |
318 | fn write_clr8(bw: &mut ByteWriter, clr8_flags: u16, clr8: &[[u16; 4]; 4]) -> EncoderResult<()> { | |
319 | bw.write_u16le(clr8_flags)?; | |
320 | bw.write_u16le(clr8[0][0] | 0x8000)?; | |
321 | bw.write_u16le(clr8[0][1])?; | |
322 | bw.write_u16le(clr8[1][0])?; | |
323 | bw.write_u16le(clr8[1][1])?; | |
324 | bw.write_u16le(clr8[2][0])?; | |
325 | bw.write_u16le(clr8[2][1])?; | |
326 | bw.write_u16le(clr8[3][0])?; | |
327 | bw.write_u16le(clr8[3][1])?; | |
328 | Ok(()) | |
329 | } | |
330 | } | |
331 | ||
332 | struct MSVideo1Encoder { | |
333 | stream: Option<NAStreamRef>, | |
334 | pkt: Option<NAPacket>, | |
335 | pool: NAVideoBufferPool<u16>, | |
336 | lastfrm: Option<NAVideoBufferRef<u16>>, | |
337 | quality: u8, | |
338 | frmcount: u8, | |
339 | key_int: u8, | |
340 | } | |
341 | ||
342 | impl MSVideo1Encoder { | |
343 | fn new() -> Self { | |
344 | Self { | |
345 | stream: None, | |
346 | pkt: None, | |
347 | pool: NAVideoBufferPool::new(2), | |
348 | lastfrm: None, | |
349 | quality: 0, | |
350 | frmcount: 0, | |
351 | key_int: 25, | |
352 | } | |
353 | } | |
354 | fn get_block(src: &[u16], sstride: usize, buf: &mut [UnpackedPixel; 16]) { | |
355 | for (line, dst) in src.chunks(sstride).zip(buf.chunks_mut(4)) { | |
356 | for (dst, src) in dst.iter_mut().zip(line.iter()) { | |
357 | *dst = src.unpack(); | |
358 | } | |
359 | } | |
360 | } | |
361 | fn write_skips(bw: &mut ByteWriter, skips: usize) -> EncoderResult<()> { | |
362 | bw.write_u16le((skips as u16) | 0x8400)?; | |
363 | Ok(()) | |
364 | } | |
365 | fn encode_inter(bw: &mut ByteWriter, cur_frm: &mut NAVideoBuffer<u16>, in_frm: &NAVideoBuffer<u16>, prev_frm: &NAVideoBuffer<u16>, quality: u8) -> EncoderResult<bool> { | |
366 | let (skip_threshold, fill_threshold) = map_quality(quality); | |
367 | let mut is_intra = true; | |
368 | let src = in_frm.get_data(); | |
369 | let sstride = in_frm.get_stride(0); | |
370 | let soff = in_frm.get_offset(0); | |
371 | let (w, h) = in_frm.get_dimensions(0); | |
372 | let rsrc = prev_frm.get_data(); | |
373 | let rstride = prev_frm.get_stride(0); | |
374 | let roff = prev_frm.get_offset(0); | |
375 | let dstride = cur_frm.get_stride(0); | |
376 | let doff = cur_frm.get_offset(0); | |
377 | let dst = cur_frm.get_data_mut().unwrap(); | |
378 | let mut skip_run = 0; | |
379 | let bpainter = BlockPainter15::new(); | |
380 | for ((sstrip, rstrip), dstrip) in (&src[soff..]).chunks(sstride * 4).take(h / 4).zip((&rsrc[roff..]).chunks(rstride * 4)).zip((&mut dst[doff..]).chunks_mut(dstride * 4)) { | |
381 | for x in (0..w).step_by(4) { | |
382 | let mut buf = [UnpackedPixel::default(); 16]; | |
383 | let mut refbuf = [UnpackedPixel::default(); 16]; | |
384 | Self::get_block(&sstrip[x..], sstride, &mut buf); | |
385 | Self::get_block(&rstrip[x..], rstride, &mut refbuf); | |
386 | ||
387 | let mut skip_dist = 0; | |
388 | for (pix, rpix) in buf.iter().zip(refbuf.iter()) { | |
389 | skip_dist += dist_core(*rpix, pix); | |
390 | } | |
391 | if skip_dist <= skip_threshold { | |
392 | skip_run += 1; | |
393 | is_intra = false; | |
394 | if skip_threshold > 0 { | |
395 | for (dst, src) in dstrip[x..].chunks_mut(dstride).zip(rstrip[x..].chunks(rstride)).take(4) { | |
396 | dst[..4].copy_from_slice(&src[..4]); | |
397 | } | |
398 | } | |
399 | if skip_run == 1023 { | |
400 | Self::write_skips(bw, skip_run)?; | |
401 | skip_run = 0; | |
402 | } | |
403 | continue; | |
404 | } | |
405 | ||
406 | let mut bstate = BlockState::default(); | |
407 | bstate.calc_stats(&buf); | |
408 | ||
409 | let dst = &mut dstrip[x..]; | |
410 | if skip_dist <= bstate.fill_dist { | |
411 | skip_run += 1; | |
412 | is_intra = false; | |
413 | for (dst, src) in dst.chunks_mut(dstride).zip(rstrip[x..].chunks(rstride)).take(4) { | |
414 | dst[..4].copy_from_slice(&src[..4]); | |
415 | } | |
416 | if skip_run == 1023 { | |
417 | Self::write_skips(bw, skip_run)?; | |
418 | skip_run = 0; | |
419 | } | |
420 | } else if bstate.fill_dist <= fill_threshold || | |
421 | bstate.fill_dist <= bstate.clr2_dist { | |
422 | let fill_val = bpainter.put_fill(&bstate, dst, dstride); | |
423 | if skip_run != 0 { | |
424 | Self::write_skips(bw, skip_run)?; | |
425 | skip_run = 0; | |
426 | } | |
427 | BlockWriter15::write_fill(bw, fill_val)?; | |
428 | } else if bstate.clr8_dist < bstate.clr2_dist { | |
429 | let clr8 = bpainter.put_clr8(&bstate, dst, dstride); | |
430 | if skip_run != 0 { | |
431 | Self::write_skips(bw, skip_run)?; | |
432 | skip_run = 0; | |
433 | } | |
434 | BlockWriter15::write_clr8(bw, bstate.clr8_flags, &clr8)?; | |
435 | } else { | |
436 | let clr2 = bpainter.put_clr2(&bstate, dst, dstride); | |
437 | if skip_run != 0 { | |
438 | Self::write_skips(bw, skip_run)?; | |
439 | skip_run = 0; | |
440 | } | |
441 | BlockWriter15::write_clr2(bw, bstate.clr2_flags, clr2)?; | |
442 | } | |
443 | } | |
444 | } | |
445 | if skip_run != 0 { | |
446 | Self::write_skips(bw, skip_run)?; | |
447 | } | |
448 | if is_intra { | |
449 | bw.write_u16le(0)?; | |
450 | } //xxx: something for inter? | |
451 | Ok(is_intra) | |
452 | } | |
453 | fn encode_intra(bw: &mut ByteWriter, cur_frm: &mut NAVideoBuffer<u16>, in_frm: &NAVideoBuffer<u16>, quality: u8) -> EncoderResult<bool> { | |
454 | let (_, fill_threshold) = map_quality(quality); | |
455 | let src = in_frm.get_data(); | |
456 | let sstride = in_frm.get_stride(0); | |
457 | let soff = in_frm.get_offset(0); | |
458 | let (w, h) = in_frm.get_dimensions(0); | |
459 | let dstride = cur_frm.get_stride(0); | |
460 | let doff = cur_frm.get_offset(0); | |
461 | let dst = cur_frm.get_data_mut().unwrap(); | |
462 | let bpainter = BlockPainter15::new(); | |
463 | for (sstrip, dstrip) in (&src[soff..]).chunks(sstride * 4).take(h / 4).zip((&mut dst[doff..]).chunks_mut(dstride * 4)) { | |
464 | for x in (0..w).step_by(4) { | |
465 | let mut buf = [UnpackedPixel::default(); 16]; | |
466 | Self::get_block(&sstrip[x..], sstride, &mut buf); | |
467 | let mut bstate = BlockState::default(); | |
468 | bstate.calc_stats(&buf); | |
469 | ||
470 | let dst = &mut dstrip[x..]; | |
471 | if bstate.fill_dist <= fill_threshold || | |
472 | bstate.fill_dist <= bstate.clr2_dist { | |
473 | let fill_val = bpainter.put_fill(&bstate, dst, dstride); | |
474 | BlockWriter15::write_fill(bw, fill_val)?; | |
475 | } else if bstate.clr8_dist < bstate.clr2_dist { | |
476 | let clr8 = bpainter.put_clr8(&bstate, dst, dstride); | |
477 | BlockWriter15::write_clr8(bw, bstate.clr8_flags, &clr8)?; | |
478 | } else { | |
479 | let clr2 = bpainter.put_clr2(&bstate, dst, dstride); | |
480 | BlockWriter15::write_clr2(bw, bstate.clr2_flags, clr2)?; | |
481 | } | |
482 | } | |
483 | } | |
484 | bw.write_u16le(0)?; | |
485 | Ok(true) | |
486 | } | |
487 | } | |
488 | ||
489 | const RGB555_FORMAT: NAPixelFormaton = NAPixelFormaton { | |
490 | model: ColorModel::RGB(RGBSubmodel::RGB), components: 3, | |
491 | comp_info: [ | |
492 | Some(NAPixelChromaton{ h_ss: 0, v_ss: 0, packed: true, depth: 5, shift: 10, comp_offs: 0, next_elem: 2 }), | |
493 | Some(NAPixelChromaton{ h_ss: 0, v_ss: 0, packed: true, depth: 5, shift: 5, comp_offs: 0, next_elem: 2 }), | |
494 | Some(NAPixelChromaton{ h_ss: 0, v_ss: 0, packed: true, depth: 5, shift: 0, comp_offs: 0, next_elem: 2 }), | |
495 | None, None], | |
496 | elem_size: 2, be: false, alpha: false, palette: false }; | |
497 | ||
498 | impl NAEncoder for MSVideo1Encoder { | |
499 | fn negotiate_format(&self, encinfo: &EncodeParameters) -> EncoderResult<EncodeParameters> { | |
500 | match encinfo.format { | |
501 | NACodecTypeInfo::None => { | |
502 | Ok(EncodeParameters { | |
503 | format: NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, true, RGB555_FORMAT)), | |
504 | ..Default::default() }) | |
505 | }, | |
506 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), | |
507 | NACodecTypeInfo::Video(vinfo) => { | |
508 | let outinfo = NAVideoInfo::new((vinfo.width + 3) & !3, (vinfo.height + 3) & !3, true, RGB555_FORMAT); | |
509 | let mut ofmt = *encinfo; | |
510 | ofmt.format = NACodecTypeInfo::Video(outinfo); | |
511 | Ok(ofmt) | |
512 | } | |
513 | } | |
514 | } | |
515 | fn init(&mut self, stream_id: u32, encinfo: EncodeParameters) -> EncoderResult<NAStreamRef> { | |
516 | match encinfo.format { | |
517 | NACodecTypeInfo::None => Err(EncoderError::FormatError), | |
518 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), | |
519 | NACodecTypeInfo::Video(vinfo) => { | |
520 | if vinfo.format != RGB555_FORMAT { | |
521 | return Err(EncoderError::FormatError); | |
522 | } | |
523 | if ((vinfo.width | vinfo.height) & 3) != 0 { | |
524 | return Err(EncoderError::FormatError); | |
525 | } | |
526 | ||
527 | let out_info = NAVideoInfo::new(vinfo.width, vinfo.height, true, RGB555_FORMAT); | |
528 | let info = NACodecInfo::new("msvideo1", NACodecTypeInfo::Video(out_info), None); | |
529 | let mut stream = NAStream::new(StreamType::Video, stream_id, info, encinfo.tb_num, encinfo.tb_den, 0); | |
530 | stream.set_num(stream_id as usize); | |
531 | let stream = stream.into_ref(); | |
532 | if self.pool.prealloc_video(out_info, 2).is_err() { | |
533 | return Err(EncoderError::AllocError); | |
534 | } | |
535 | ||
536 | self.stream = Some(stream.clone()); | |
537 | self.quality = encinfo.quality; | |
538 | ||
539 | Ok(stream) | |
540 | }, | |
541 | } | |
542 | } | |
543 | fn encode(&mut self, frm: &NAFrame) -> EncoderResult<()> { | |
544 | let buf = frm.get_buffer(); | |
545 | if let Some(ref vbuf) = buf.get_vbuf16() { | |
546 | let mut cur_frm = self.pool.get_free().unwrap(); | |
547 | let mut dbuf = Vec::with_capacity(4); | |
548 | let mut gw = GrowableMemoryWriter::new_write(&mut dbuf); | |
549 | let mut bw = ByteWriter::new(&mut gw); | |
550 | if self.frmcount == 0 { | |
551 | self.lastfrm = None; | |
552 | } | |
553 | let is_intra = if let Some(ref prev_buf) = self.lastfrm { | |
554 | Self::encode_inter(&mut bw, &mut cur_frm, vbuf, prev_buf, self.quality)? | |
555 | } else { | |
556 | Self::encode_intra(&mut bw, &mut cur_frm, vbuf, self.quality)? | |
557 | }; | |
558 | self.lastfrm = Some(cur_frm); | |
559 | self.pkt = Some(NAPacket::new(self.stream.clone().unwrap(), frm.ts, is_intra, dbuf)); | |
560 | self.frmcount += 1; | |
561 | if self.frmcount == self.key_int { | |
562 | self.frmcount = 0; | |
563 | } | |
564 | Ok(()) | |
565 | } else { | |
566 | Err(EncoderError::InvalidParameters) | |
567 | } | |
568 | } | |
569 | fn get_packet(&mut self) -> EncoderResult<Option<NAPacket>> { | |
570 | let mut npkt = None; | |
571 | std::mem::swap(&mut self.pkt, &mut npkt); | |
572 | Ok(npkt) | |
573 | } | |
574 | fn flush(&mut self) -> EncoderResult<()> { | |
575 | self.frmcount = 0; | |
576 | Ok(()) | |
577 | } | |
578 | } | |
579 | ||
580 | const ENCODER_OPTS: &[NAOptionDefinition] = &[ | |
581 | NAOptionDefinition { | |
582 | name: KEYFRAME_OPTION, description: KEYFRAME_OPTION_DESC, | |
583 | opt_type: NAOptionDefinitionType::Int(Some(0), Some(128)) }, | |
584 | ]; | |
585 | ||
586 | impl NAOptionHandler for MSVideo1Encoder { | |
587 | fn get_supported_options(&self) -> &[NAOptionDefinition] { ENCODER_OPTS } | |
588 | fn set_options(&mut self, options: &[NAOption]) { | |
589 | for option in options.iter() { | |
590 | for opt_def in ENCODER_OPTS.iter() { | |
591 | if opt_def.check(option).is_ok() { | |
592 | match option.name { | |
593 | KEYFRAME_OPTION => { | |
594 | if let NAValue::Int(intval) = option.value { | |
595 | self.key_int = intval as u8; | |
596 | } | |
597 | }, | |
598 | _ => {}, | |
599 | }; | |
600 | } | |
601 | } | |
602 | } | |
603 | } | |
604 | fn query_option_value(&self, name: &str) -> Option<NAValue> { | |
605 | match name { | |
606 | KEYFRAME_OPTION => Some(NAValue::Int(i64::from(self.key_int))), | |
607 | _ => None, | |
608 | } | |
609 | } | |
610 | } | |
611 | ||
612 | pub fn get_encoder() -> Box<dyn NAEncoder + Send> { | |
613 | Box::new(MSVideo1Encoder::new()) | |
614 | } | |
615 | ||
616 | #[cfg(test)] | |
617 | mod test { | |
618 | use nihav_core::codecs::*; | |
619 | use nihav_core::demuxers::*; | |
620 | use nihav_core::muxers::*; | |
621 | use crate::*; | |
622 | use nihav_commonfmt::*; | |
623 | use nihav_codec_support::test::enc_video::*; | |
624 | use super::RGB555_FORMAT; | |
625 | ||
626 | #[test] | |
627 | fn test_ms_video1_encoder() { | |
628 | let mut dmx_reg = RegisteredDemuxers::new(); | |
629 | generic_register_all_demuxers(&mut dmx_reg); | |
630 | let mut dec_reg = RegisteredDecoders::new(); | |
631 | generic_register_all_decoders(&mut dec_reg); | |
632 | ms_register_all_decoders(&mut dec_reg); | |
633 | let mut mux_reg = RegisteredMuxers::new(); | |
634 | generic_register_all_muxers(&mut mux_reg); | |
635 | let mut enc_reg = RegisteredEncoders::new(); | |
636 | ms_register_all_encoders(&mut enc_reg); | |
637 | ||
638 | // sample: https://samples.mplayerhq.hu/V-codecs/UCOD/TalkingHead_352x288.avi | |
639 | let dec_config = DecoderTestParams { | |
640 | demuxer: "avi", | |
641 | in_name: "assets/Misc/TalkingHead_352x288.avi", | |
642 | stream_type: StreamType::Video, | |
643 | limit: Some(3), | |
644 | dmx_reg, dec_reg, | |
645 | }; | |
646 | let enc_config = EncoderTestParams { | |
647 | muxer: "avi", | |
648 | enc_name: "msvideo1", | |
649 | out_name: "msvideo1.avi", | |
650 | mux_reg, enc_reg, | |
651 | }; | |
652 | let dst_vinfo = NAVideoInfo { | |
653 | width: 0, | |
654 | height: 0, | |
655 | format: RGB555_FORMAT, | |
656 | flipped: true, | |
657 | bits: 16, | |
658 | }; | |
659 | let enc_params = EncodeParameters { | |
660 | format: NACodecTypeInfo::Video(dst_vinfo), | |
661 | quality: 80, | |
662 | bitrate: 0, | |
663 | tb_num: 0, | |
664 | tb_den: 0, | |
665 | flags: 0, | |
666 | }; | |
667 | //test_encoding_to_file(&dec_config, &enc_config, enc_params, &[]); | |
668 | test_encoding_md5(&dec_config, &enc_config, enc_params, &[], | |
669 | &[0x35d95583, 0xb7431be7, 0xad490677, 0x968a1d84]); | |
670 | } | |
671 | } |