]>
Commit | Line | Data |
---|---|---|
1 | use nihav_core::codecs::*; | |
2 | use nihav_core::io::byteio::*; | |
3 | use nihav_core::io::bitwriter::*; | |
4 | ||
5 | const GRAY_FORMAT: NAPixelFormaton = NAPixelFormaton { | |
6 | model: ColorModel::YUV(YUVSubmodel::YUVJ), | |
7 | components: 1, | |
8 | comp_info: [Some(NAPixelChromaton{h_ss: 0, v_ss: 0, packed: false, depth: 8, shift: 0, comp_offs: 0, next_elem: 1}), None, None, None, None], | |
9 | elem_size: 1, | |
10 | be: true, | |
11 | alpha: false, | |
12 | palette: false, | |
13 | }; | |
14 | ||
15 | #[derive(Clone,Copy,Default,PartialEq)] | |
16 | enum CompressionLevel { | |
17 | None, | |
18 | Fast, | |
19 | #[default] | |
20 | Best | |
21 | } | |
22 | ||
23 | impl std::string::ToString for CompressionLevel { | |
24 | fn to_string(&self) -> String { | |
25 | match *self { | |
26 | CompressionLevel::None => "none".to_string(), | |
27 | CompressionLevel::Fast => "fast".to_string(), | |
28 | CompressionLevel::Best => "best".to_string(), | |
29 | } | |
30 | } | |
31 | } | |
32 | ||
33 | const NO_CODE: u16 = 0; | |
34 | ||
35 | struct LZWDictionary { | |
36 | cur_size: usize, | |
37 | bit_len: u8, | |
38 | clear_code: u16, | |
39 | end_code: u16, | |
40 | orig_len: u8, | |
41 | trie: Vec<[u16; 257]>, | |
42 | } | |
43 | ||
44 | impl LZWDictionary { | |
45 | fn new() -> Self { | |
46 | Self { | |
47 | trie: Vec::with_capacity(4096), | |
48 | cur_size: 0, | |
49 | bit_len: 0, | |
50 | clear_code: 0, | |
51 | end_code: 0, | |
52 | orig_len: 0, | |
53 | } | |
54 | } | |
55 | fn init(&mut self, bits: u8) { | |
56 | self.cur_size = (1 << bits) + 2; | |
57 | self.bit_len = bits + 1; | |
58 | self.clear_code = 1 << bits; | |
59 | self.end_code = self.clear_code + 1; | |
60 | self.orig_len = self.bit_len; | |
61 | ||
62 | self.trie.clear(); | |
63 | for _ in 0..self.cur_size { | |
64 | self.trie.push([NO_CODE; 257]); | |
65 | } | |
66 | for (idx, nodes) in self.trie.iter_mut().enumerate() { | |
67 | nodes[256] = idx as u16; | |
68 | } | |
69 | } | |
70 | fn find(&self, src: &[u8]) -> (u16, usize, usize) { | |
71 | let mut idx = usize::from(src[0]); | |
72 | let mut last_len = 0; | |
73 | for (pos, &next) in src.iter().enumerate().skip(1) { | |
74 | let next = usize::from(next); | |
75 | if self.trie[idx][next] != NO_CODE { | |
76 | idx = usize::from(self.trie[idx][next]); | |
77 | } else { | |
78 | return (self.trie[idx][256], pos, idx); | |
79 | } | |
80 | last_len = pos; | |
81 | } | |
82 | (self.trie[idx][256], last_len + 1, idx) | |
83 | } | |
84 | fn add(&mut self, lastidx: usize, next: u8) { | |
85 | if self.cur_size >= (1 << 12) { | |
86 | return; | |
87 | } | |
88 | let next = usize::from(next); | |
89 | if self.trie[lastidx][next] == NO_CODE { | |
90 | let newnode = self.trie.len(); | |
91 | self.trie.push([NO_CODE; 257]); | |
92 | self.trie[newnode][256] = self.cur_size as u16; | |
93 | self.trie[lastidx][next] = newnode as u16; | |
94 | } | |
95 | if (self.cur_size & (self.cur_size - 1)) == 0 && self.bit_len < 12 { | |
96 | self.bit_len += 1; | |
97 | } | |
98 | self.cur_size += 1; | |
99 | } | |
100 | fn reset(&mut self) { | |
101 | self.bit_len = self.orig_len; | |
102 | self.cur_size = usize::from(self.end_code) + 1; | |
103 | self.trie.truncate(self.cur_size); | |
104 | for nodes in self.trie.iter_mut() { | |
105 | for el in nodes[..256].iter_mut() { | |
106 | *el = NO_CODE; | |
107 | } | |
108 | } | |
109 | } | |
110 | } | |
111 | ||
112 | struct LZWEncoder { | |
113 | dict: LZWDictionary, | |
114 | level: CompressionLevel, | |
115 | tmp: Vec<u8>, | |
116 | } | |
117 | ||
118 | impl LZWEncoder { | |
119 | fn new() -> Self { | |
120 | Self { | |
121 | dict: LZWDictionary::new(), | |
122 | level: CompressionLevel::default(), | |
123 | tmp: Vec::new(), | |
124 | } | |
125 | } | |
126 | fn compress(&mut self, writer: &mut ByteWriter, src: &[u8]) -> EncoderResult<()> { | |
127 | let clr_bits: u8 = if self.level != CompressionLevel::None { | |
128 | let maxclr = u16::from(src.iter().fold(0u8, |acc, &a| acc.max(a))) + 1; | |
129 | let mut bits = 2; | |
130 | while (1 << bits) < maxclr { | |
131 | bits += 1; | |
132 | } | |
133 | bits | |
134 | } else { 8 }; | |
135 | ||
136 | self.dict.init(clr_bits); | |
137 | ||
138 | self.tmp.clear(); | |
139 | let mut tbuf = Vec::new(); | |
140 | std::mem::swap(&mut tbuf, &mut self.tmp); | |
141 | let mut bw = BitWriter::new(tbuf, BitWriterMode::LE); | |
142 | ||
143 | bw.write(u32::from(self.dict.clear_code), self.dict.bit_len); | |
144 | ||
145 | match self.level { | |
146 | CompressionLevel::None => { | |
147 | let sym_limit = 1 << (clr_bits + 1); | |
148 | for &b in src.iter() { | |
149 | if self.dict.cur_size >= sym_limit { | |
150 | bw.write(u32::from(self.dict.clear_code), self.dict.bit_len); | |
151 | self.dict.reset(); | |
152 | } | |
153 | bw.write(u32::from(b), self.dict.bit_len); | |
154 | self.dict.add(usize::from(b), 0); | |
155 | } | |
156 | }, | |
157 | CompressionLevel::Fast => { | |
158 | let mut pos = 0; | |
159 | while pos < src.len() { | |
160 | let (idx, len, trieidx) = self.dict.find(&src[pos..]); | |
161 | bw.write(u32::from(idx), self.dict.bit_len); | |
162 | pos += len; | |
163 | if pos < src.len() { | |
164 | self.dict.add(trieidx, src[pos]); | |
165 | } | |
166 | if self.dict.cur_size == 4096 { | |
167 | bw.write(u32::from(self.dict.clear_code), self.dict.bit_len); | |
168 | self.dict.reset(); | |
169 | } | |
170 | } | |
171 | }, | |
172 | CompressionLevel::Best => { | |
173 | let mut pos = 0; | |
174 | let mut hist = [0; 16]; | |
175 | let mut avg = 0; | |
176 | let mut avg1 = 0; | |
177 | let mut hpos = 0; | |
178 | while pos < src.len() { | |
179 | let (idx, len, trieidx) = self.dict.find(&src[pos..]); | |
180 | bw.write(u32::from(idx), self.dict.bit_len); | |
181 | pos += len; | |
182 | if pos >= src.len() { | |
183 | break; | |
184 | } | |
185 | self.dict.add(trieidx, src[pos]); | |
186 | ||
187 | avg1 -= hist[(hpos + 1) & 0xF]; | |
188 | avg1 += len; | |
189 | if self.dict.cur_size == 4096 && (avg1 < avg - avg / 8) { | |
190 | bw.write(u32::from(self.dict.clear_code), self.dict.bit_len); | |
191 | self.dict.reset(); | |
192 | } | |
193 | avg = avg1; | |
194 | hpos = (hpos + 1) & 0xF; | |
195 | hist[hpos] = len; | |
196 | } | |
197 | }, | |
198 | }; | |
199 | ||
200 | bw.write(u32::from(self.dict.end_code), self.dict.bit_len); | |
201 | tbuf = bw.end(); | |
202 | std::mem::swap(&mut tbuf, &mut self.tmp); | |
203 | ||
204 | writer.write_byte(clr_bits)?; | |
205 | for chunk in self.tmp.chunks(255) { | |
206 | writer.write_byte(chunk.len() as u8)?; | |
207 | writer.write_buf(chunk)?; | |
208 | } | |
209 | writer.write_byte(0x00)?; // data end marker | |
210 | Ok(()) | |
211 | } | |
212 | } | |
213 | ||
214 | struct GIFEncoder { | |
215 | stream: Option<NAStreamRef>, | |
216 | cur_frm: Vec<u8>, | |
217 | prev_frm: Vec<u8>, | |
218 | tmp_buf: Vec<u8>, | |
219 | pal: [u8; 768], | |
220 | pkt: Option<NAPacket>, | |
221 | first: bool, | |
222 | width: usize, | |
223 | height: usize, | |
224 | grayscale: bool, | |
225 | lzw: LZWEncoder, | |
226 | p_trans: bool, | |
227 | tr_idx: Option<u8>, | |
228 | } | |
229 | ||
230 | impl GIFEncoder { | |
231 | fn new() -> Self { | |
232 | Self { | |
233 | stream: None, | |
234 | pkt: None, | |
235 | cur_frm: Vec::new(), | |
236 | prev_frm: Vec::new(), | |
237 | pal: [0; 768], | |
238 | tmp_buf: Vec::new(), | |
239 | first: true, | |
240 | width: 0, | |
241 | height: 0, | |
242 | grayscale: false, | |
243 | lzw: LZWEncoder::new(), | |
244 | p_trans: false, | |
245 | tr_idx: None, | |
246 | } | |
247 | } | |
248 | fn write_dummy_frame(&mut self, bw: &mut ByteWriter) -> EncoderResult<()> { | |
249 | let mut pix = [self.cur_frm[0]]; | |
250 | if let (true, Some(tr_idx)) = (self.p_trans, self.tr_idx) { | |
251 | if tr_idx < pix[0] { | |
252 | pix[0] = tr_idx; | |
253 | } | |
254 | } | |
255 | ||
256 | // 1x1 image descriptor | |
257 | bw.write_buf(&[0x2C, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00])?; | |
258 | self.lzw.compress(bw, &pix)?; | |
259 | Ok(()) | |
260 | } | |
261 | } | |
262 | ||
263 | impl NAEncoder for GIFEncoder { | |
264 | fn negotiate_format(&self, encinfo: &EncodeParameters) -> EncoderResult<EncodeParameters> { | |
265 | match encinfo.format { | |
266 | NACodecTypeInfo::None => { | |
267 | Ok(EncodeParameters { | |
268 | format: NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, true, YUV420_FORMAT)), | |
269 | ..Default::default() | |
270 | }) | |
271 | }, | |
272 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), | |
273 | NACodecTypeInfo::Video(vinfo) => { | |
274 | let format = if vinfo.format == GRAY_FORMAT { GRAY_FORMAT } else { PAL8_FORMAT }; | |
275 | let outinfo = NAVideoInfo::new(vinfo.width, vinfo.height, false, format); | |
276 | let mut ofmt = *encinfo; | |
277 | ofmt.format = NACodecTypeInfo::Video(outinfo); | |
278 | Ok(ofmt) | |
279 | } | |
280 | } | |
281 | } | |
282 | fn get_capabilities(&self) -> u64 { ENC_CAPS_SKIPFRAME } | |
283 | fn init(&mut self, stream_id: u32, encinfo: EncodeParameters) -> EncoderResult<NAStreamRef> { | |
284 | match encinfo.format { | |
285 | NACodecTypeInfo::None => Err(EncoderError::FormatError), | |
286 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), | |
287 | NACodecTypeInfo::Video(vinfo) => { | |
288 | if vinfo.width > 65535 || vinfo.height > 65535 { | |
289 | return Err(EncoderError::FormatError); | |
290 | } | |
291 | if vinfo.format != PAL8_FORMAT && vinfo.format != GRAY_FORMAT { | |
292 | return Err(EncoderError::FormatError); | |
293 | } | |
294 | self.width = vinfo.width; | |
295 | self.height = vinfo.height; | |
296 | self.grayscale = vinfo.format == GRAY_FORMAT; | |
297 | ||
298 | let edata = self.tr_idx.map(|val| vec![val]); | |
299 | ||
300 | let out_info = NAVideoInfo::new(vinfo.width, vinfo.height, false, PAL8_FORMAT); | |
301 | let info = NACodecInfo::new("gif", NACodecTypeInfo::Video(out_info), edata); | |
302 | let mut stream = NAStream::new(StreamType::Video, stream_id, info, encinfo.tb_num, encinfo.tb_den, 0); | |
303 | stream.set_num(stream_id as usize); | |
304 | let stream = stream.into_ref(); | |
305 | ||
306 | self.stream = Some(stream.clone()); | |
307 | ||
308 | self.cur_frm = vec![0; vinfo.width * vinfo.height]; | |
309 | self.prev_frm = vec![0; vinfo.width * vinfo.height]; | |
310 | self.tmp_buf.clear(); | |
311 | self.tmp_buf.reserve(vinfo.width * vinfo.height); | |
312 | ||
313 | self.first = true; | |
314 | ||
315 | Ok(stream) | |
316 | }, | |
317 | } | |
318 | } | |
319 | fn encode(&mut self, frm: &NAFrame) -> EncoderResult<()> { | |
320 | let mut dbuf = Vec::with_capacity(4); | |
321 | let mut gw = GrowableMemoryWriter::new_write(&mut dbuf); | |
322 | let mut bw = ByteWriter::new(&mut gw); | |
323 | ||
324 | self.tmp_buf.clear(); | |
325 | ||
326 | match frm.get_buffer() { | |
327 | NABufferType::Video(ref buf) => { | |
328 | let src = buf.get_data(); | |
329 | let stride = buf.get_stride(0); | |
330 | let src = &src[buf.get_offset(0)..]; | |
331 | ||
332 | for (dline, sline) in self.cur_frm.chunks_exact_mut(self.width) | |
333 | .zip(src.chunks_exact(stride)) { | |
334 | dline.copy_from_slice(&sline[..self.width]); | |
335 | } | |
336 | ||
337 | let cur_pal = &src[buf.get_offset(1)..][..768]; | |
338 | if self.first { | |
339 | if !self.grayscale { | |
340 | self.pal.copy_from_slice(cur_pal); | |
341 | } else { | |
342 | for (i, pal) in self.pal.chunks_exact_mut(3).enumerate() { | |
343 | pal[0] = i as u8; | |
344 | pal[1] = i as u8; | |
345 | pal[2] = i as u8; | |
346 | } | |
347 | } | |
348 | } | |
349 | ||
350 | let mut pal_changed = false; | |
351 | if !self.first && !self.grayscale { | |
352 | let mut used = [false; 256]; | |
353 | for &b in self.cur_frm.iter() { | |
354 | used[usize::from(b)] = true; | |
355 | } | |
356 | for (&used, (pal1, pal2)) in used.iter() | |
357 | .zip(self.pal.chunks_exact(3).zip(cur_pal.chunks_exact(3))) { | |
358 | if used && (pal1 != pal2) { | |
359 | pal_changed = true; | |
360 | break; | |
361 | } | |
362 | } | |
363 | } | |
364 | ||
365 | if self.first { | |
366 | bw.write_byte(0x2C)?; // image descriptor | |
367 | bw.write_u16le(0)?; // left | |
368 | bw.write_u16le(0)?; // top | |
369 | bw.write_u16le(self.width as u16)?; | |
370 | bw.write_u16le(self.height as u16)?; | |
371 | bw.write_byte(0)?; // flags | |
372 | self.lzw.compress(&mut bw, &self.cur_frm)?; | |
373 | } else { | |
374 | let mut top = 0; | |
375 | for (y, (line1, line2)) in self.cur_frm.chunks_exact(self.width) | |
376 | .zip(self.prev_frm.chunks_exact(self.width)).enumerate() { | |
377 | if line1 == line2 { | |
378 | top = y; | |
379 | } else { | |
380 | break; | |
381 | } | |
382 | } | |
383 | if top != self.height - 1 { | |
384 | let mut bot = self.height; | |
385 | for (y, (line1, line2)) in self.cur_frm.chunks_exact(self.width) | |
386 | .zip(self.prev_frm.chunks_exact(self.width)).enumerate().rev() { | |
387 | if line1 == line2 { | |
388 | bot = y + 1; | |
389 | } else { | |
390 | break; | |
391 | } | |
392 | } | |
393 | let mut left = self.width - 1; | |
394 | let mut right = 0; | |
395 | for (line1, line2) in self.cur_frm.chunks_exact(self.width) | |
396 | .zip(self.prev_frm.chunks_exact(self.width)) | |
397 | .skip(top).take(bot - top) { | |
398 | if left > 0 { | |
399 | let mut cur_l = 0; | |
400 | for (x, (&p1, &p2)) in line1.iter().zip(line2.iter()).enumerate() { | |
401 | if p1 == p2 { | |
402 | cur_l = x + 1; | |
403 | } else { | |
404 | break; | |
405 | } | |
406 | } | |
407 | left = left.min(cur_l); | |
408 | } | |
409 | if right < self.width { | |
410 | let mut cur_r = self.width; | |
411 | for (x, (&p1, &p2)) in line1.iter().zip(line2.iter()) | |
412 | .enumerate().rev() { | |
413 | if p1 == p2 { | |
414 | cur_r = x + 1; | |
415 | } else { | |
416 | break; | |
417 | } | |
418 | } | |
419 | right = right.max(cur_r); | |
420 | } | |
421 | } | |
422 | self.tmp_buf.clear(); | |
423 | let use_transparency = self.p_trans && self.tr_idx.is_some(); | |
424 | let full_frame = right == 0 && top == 0 && left == self.width && bot == self.height; | |
425 | ||
426 | let pic = match (use_transparency, full_frame) { | |
427 | (true, _) => { | |
428 | let tr_idx = self.tr_idx.unwrap_or(0); | |
429 | for (cline, pline) in self.cur_frm.chunks_exact(self.width) | |
430 | .zip(self.prev_frm.chunks_exact(self.width)) | |
431 | .skip(top).take(bot - top) { | |
432 | for (&cpix, &ppix) in cline[left..right].iter() | |
433 | .zip(pline[left..right].iter()) { | |
434 | self.tmp_buf.push(if cpix == ppix { tr_idx } else { cpix }); | |
435 | } | |
436 | } | |
437 | &self.tmp_buf | |
438 | }, | |
439 | (false, true) => { | |
440 | &self.cur_frm | |
441 | }, | |
442 | (false, false) => { | |
443 | for line in self.cur_frm.chunks_exact(self.width) | |
444 | .skip(top).take(bot - top) { | |
445 | self.tmp_buf.extend_from_slice(&line[left..right]); | |
446 | } | |
447 | &self.tmp_buf | |
448 | }, | |
449 | }; | |
450 | ||
451 | bw.write_byte(0x2C)?; // image descriptor | |
452 | bw.write_u16le(left as u16)?; | |
453 | bw.write_u16le(top as u16)?; | |
454 | bw.write_u16le((right - left) as u16)?; | |
455 | bw.write_u16le((bot - top) as u16)?; | |
456 | if !pal_changed { | |
457 | bw.write_byte(0)?; // flags | |
458 | } else { | |
459 | let maxclr = pic.iter().fold(0u8, |acc, &a| acc.max(a)); | |
460 | let clr_bits = if maxclr > 128 { | |
461 | 8 | |
462 | } else { | |
463 | let mut bits = 1; | |
464 | while (1 << bits) < maxclr { | |
465 | bits += 1; | |
466 | } | |
467 | bits | |
468 | }; | |
469 | bw.write_byte(0x80 | (clr_bits - 1))?; | |
470 | bw.write_buf(&cur_pal[..(3 << clr_bits)])?; | |
471 | } | |
472 | self.lzw.compress(&mut bw, pic)?; | |
473 | } else { | |
474 | self.write_dummy_frame(&mut bw)?; | |
475 | } | |
476 | } | |
477 | }, | |
478 | NABufferType::None if !self.first => { | |
479 | self.write_dummy_frame(&mut bw)?; | |
480 | }, | |
481 | _ => return Err(EncoderError::InvalidParameters), | |
482 | }; | |
483 | ||
484 | self.pkt = Some(NAPacket::new(self.stream.clone().unwrap(), frm.ts, self.first, dbuf)); | |
485 | self.first = false; | |
486 | ||
487 | if !self.grayscale { | |
488 | if let NABufferType::Video(ref buf) = frm.get_buffer() { | |
489 | let paloff = buf.get_offset(1); | |
490 | let data = buf.get_data(); | |
491 | let mut pal = [0; 1024]; | |
492 | let srcpal = &data[paloff..][..768]; | |
493 | for (dclr, sclr) in pal.chunks_exact_mut(4).zip(srcpal.chunks_exact(3)) { | |
494 | dclr[..3].copy_from_slice(sclr); | |
495 | } | |
496 | if let Some(ref mut pkt) = &mut self.pkt { | |
497 | pkt.side_data.push(NASideData::Palette(true, Arc::new(pal))); | |
498 | } | |
499 | } | |
500 | } else { | |
501 | let mut pal = [0; 1024]; | |
502 | for (i, quad) in pal.chunks_exact_mut(4).enumerate() { | |
503 | quad[0] = i as u8; | |
504 | quad[1] = i as u8; | |
505 | quad[2] = i as u8; | |
506 | } | |
507 | if let Some(ref mut pkt) = &mut self.pkt { | |
508 | pkt.side_data.push(NASideData::Palette(true, Arc::new(pal))); | |
509 | } | |
510 | } | |
511 | ||
512 | std::mem::swap(&mut self.cur_frm, &mut self.prev_frm); | |
513 | Ok(()) | |
514 | } | |
515 | fn get_packet(&mut self) -> EncoderResult<Option<NAPacket>> { | |
516 | let mut npkt = None; | |
517 | std::mem::swap(&mut self.pkt, &mut npkt); | |
518 | Ok(npkt) | |
519 | } | |
520 | fn flush(&mut self) -> EncoderResult<()> { | |
521 | Ok(()) | |
522 | } | |
523 | } | |
524 | ||
525 | const ENCODER_OPTS: &[NAOptionDefinition] = &[ | |
526 | NAOptionDefinition { | |
527 | name: "compr", description: "Compression level", | |
528 | opt_type: NAOptionDefinitionType::String(Some(&["none", "fast", "best"])) }, | |
529 | NAOptionDefinition { | |
530 | name: "inter_transparent", description: "Code changed regions with transparency", | |
531 | opt_type: NAOptionDefinitionType::Bool }, | |
532 | NAOptionDefinition { | |
533 | name: "transparent_idx", description: "Palette index to use for transparency (on inter frames too if requested)", | |
534 | opt_type: NAOptionDefinitionType::Int(Some(-1), Some(255)) }, | |
535 | ]; | |
536 | ||
537 | impl NAOptionHandler for GIFEncoder { | |
538 | fn get_supported_options(&self) -> &[NAOptionDefinition] { ENCODER_OPTS } | |
539 | fn set_options(&mut self, options: &[NAOption]) { | |
540 | for option in options.iter() { | |
541 | for opt_def in ENCODER_OPTS.iter() { | |
542 | if opt_def.check(option).is_ok() { | |
543 | match option.name { | |
544 | "compr" => { | |
545 | if let NAValue::String(ref strval) = option.value { | |
546 | match strval.as_str() { | |
547 | "none" => self.lzw.level = CompressionLevel::None, | |
548 | "fast" => self.lzw.level = CompressionLevel::Fast, | |
549 | "best" => self.lzw.level = CompressionLevel::Best, | |
550 | _ => {}, | |
551 | }; | |
552 | } | |
553 | }, | |
554 | "inter_transparent" => { | |
555 | if let NAValue::Bool(bval) = option.value { | |
556 | self.p_trans = bval; | |
557 | } | |
558 | }, | |
559 | "transparent_idx" => { | |
560 | if let NAValue::Int(ival) = option.value { | |
561 | self.tr_idx = if ival >= 0 { Some(ival as u8) } else { None }; | |
562 | } | |
563 | }, | |
564 | _ => {}, | |
565 | }; | |
566 | } | |
567 | } | |
568 | } | |
569 | } | |
570 | fn query_option_value(&self, name: &str) -> Option<NAValue> { | |
571 | match name { | |
572 | "compr" => Some(NAValue::String(self.lzw.level.to_string())), | |
573 | "inter_transparent" => Some(NAValue::Bool(self.p_trans)), | |
574 | "transparent_idx" => Some(NAValue::Int(self.tr_idx.map_or(-1i64, i64::from))), | |
575 | _ => None, | |
576 | } | |
577 | } | |
578 | } | |
579 | ||
580 | pub fn get_encoder() -> Box<dyn NAEncoder + Send> { | |
581 | Box::new(GIFEncoder::new()) | |
582 | } | |
583 | ||
584 | #[cfg(test)] | |
585 | mod test { | |
586 | use nihav_core::codecs::*; | |
587 | use nihav_core::demuxers::*; | |
588 | use nihav_core::muxers::*; | |
589 | use crate::*; | |
590 | use nihav_codec_support::test::enc_video::*; | |
591 | ||
592 | // sample: https://samples.mplayerhq.hu/V-codecs/Uncompressed/8bpp.avi | |
593 | fn test_gif_encoder_single(out_name: &'static str, enc_options: &[NAOption], hash: &[u32; 4]) { | |
594 | let mut dmx_reg = RegisteredDemuxers::new(); | |
595 | generic_register_all_demuxers(&mut dmx_reg); | |
596 | let mut dec_reg = RegisteredDecoders::new(); | |
597 | generic_register_all_decoders(&mut dec_reg); | |
598 | let mut mux_reg = RegisteredMuxers::new(); | |
599 | generic_register_all_muxers(&mut mux_reg); | |
600 | let mut enc_reg = RegisteredEncoders::new(); | |
601 | generic_register_all_encoders(&mut enc_reg); | |
602 | ||
603 | let dec_config = DecoderTestParams { | |
604 | demuxer: "avi", | |
605 | in_name: "assets/Misc/8bpp.avi", | |
606 | stream_type: StreamType::Video, | |
607 | limit: Some(0), | |
608 | dmx_reg, dec_reg, | |
609 | }; | |
610 | let enc_config = EncoderTestParams { | |
611 | muxer: "gif", | |
612 | enc_name: "gif", | |
613 | out_name, | |
614 | mux_reg, enc_reg, | |
615 | }; | |
616 | let dst_vinfo = NAVideoInfo { | |
617 | width: 0, | |
618 | height: 0, | |
619 | format: PAL8_FORMAT, | |
620 | flipped: false, | |
621 | bits: 8, | |
622 | }; | |
623 | let enc_params = EncodeParameters { | |
624 | format: NACodecTypeInfo::Video(dst_vinfo), | |
625 | quality: 0, | |
626 | bitrate: 0, | |
627 | tb_num: 0, | |
628 | tb_den: 0, | |
629 | flags: 0, | |
630 | }; | |
631 | //test_encoding_to_file(&dec_config, &enc_config, enc_params, enc_options); | |
632 | test_encoding_md5(&dec_config, &enc_config, enc_params, enc_options, hash); | |
633 | } | |
634 | // sample: https://samples.mplayerhq.hu/image-samples/GIF/3D.gif | |
635 | fn test_gif_anim(out_name: &'static str, enc_options: &[NAOption], hash: &[u32; 4]) { | |
636 | let mut dmx_reg = RegisteredDemuxers::new(); | |
637 | generic_register_all_demuxers(&mut dmx_reg); | |
638 | let mut dec_reg = RegisteredDecoders::new(); | |
639 | generic_register_all_decoders(&mut dec_reg); | |
640 | let mut mux_reg = RegisteredMuxers::new(); | |
641 | generic_register_all_muxers(&mut mux_reg); | |
642 | let mut enc_reg = RegisteredEncoders::new(); | |
643 | generic_register_all_encoders(&mut enc_reg); | |
644 | ||
645 | let dec_config = DecoderTestParams { | |
646 | demuxer: "gif", | |
647 | in_name: "assets/Misc/3D.gif", | |
648 | stream_type: StreamType::Video, | |
649 | limit: None, | |
650 | dmx_reg, dec_reg, | |
651 | }; | |
652 | let enc_config = EncoderTestParams { | |
653 | muxer: "gif", | |
654 | enc_name: "gif", | |
655 | out_name, | |
656 | mux_reg, enc_reg, | |
657 | }; | |
658 | let dst_vinfo = NAVideoInfo { | |
659 | width: 0, | |
660 | height: 0, | |
661 | format: PAL8_FORMAT, | |
662 | flipped: false, | |
663 | bits: 8, | |
664 | }; | |
665 | let enc_params = EncodeParameters { | |
666 | format: NACodecTypeInfo::Video(dst_vinfo), | |
667 | quality: 0, | |
668 | bitrate: 0, | |
669 | tb_num: 0, | |
670 | tb_den: 0, | |
671 | flags: 0, | |
672 | }; | |
673 | //test_encoding_to_file(&dec_config, &enc_config, enc_params, enc_options); | |
674 | test_encoding_md5(&dec_config, &enc_config, enc_params, enc_options, hash); | |
675 | } | |
676 | #[test] | |
677 | fn test_gif_single_none() { | |
678 | let enc_options = &[ | |
679 | NAOption { name: "compr", value: NAValue::String("none".to_string()) }, | |
680 | ]; | |
681 | test_gif_encoder_single("none.gif", enc_options, &[0x32900cff, 0xef979bb0, 0x2d0355e8, 0x424bddee]); | |
682 | } | |
683 | #[test] | |
684 | fn test_gif_single_fast() { | |
685 | let enc_options = &[ | |
686 | NAOption { name: "compr", value: NAValue::String("fast".to_string()) }, | |
687 | ]; | |
688 | test_gif_encoder_single("fast.gif", enc_options, &[0x9644f682, 0x497593cd, 0xdabb483d, 0x8fce63f4]); | |
689 | } | |
690 | #[test] | |
691 | fn test_gif_single_best() { | |
692 | let enc_options = &[ | |
693 | NAOption { name: "compr", value: NAValue::String("best".to_string()) }, | |
694 | ]; | |
695 | test_gif_encoder_single("best.gif", enc_options, &[0x9644f682, 0x497593cd, 0xdabb483d, 0x8fce63f4]); | |
696 | } | |
697 | #[test] | |
698 | fn test_gif_anim_opaque() { | |
699 | let enc_options = &[ | |
700 | NAOption { name: "compr", value: NAValue::String("fast".to_string()) }, | |
701 | ]; | |
702 | test_gif_anim("anim-opaque.gif", enc_options, &[0x58489e31, 0x1721d75e, 0xaebf93f2, 0x3fea9c6e]); | |
703 | } | |
704 | #[test] | |
705 | fn test_gif_anim_transparent() { | |
706 | let enc_options = &[ | |
707 | NAOption { name: "compr", value: NAValue::String("fast".to_string()) }, | |
708 | NAOption { name: "inter_transparent", value: NAValue::Bool(true) }, | |
709 | NAOption { name: "transparent_idx", value: NAValue::Int(0x7F) }, | |
710 | ]; | |
711 | test_gif_anim("anim-transp.gif", enc_options, &[0x62df6232, 0x0c334457, 0x73738404, 0xa8829dcc]); | |
712 | } | |
713 | } |