projects / nihav.git / blame
| Commit | Line | Data |
|---|---|---|
| fc39649d KS |
1 | use nihav_core::codecs::*; |
| 2 | use nihav_core::io::byteio::*; | |
| 3 | use nihav_core::io::bitwriter::*; | |
| 4 | ||
| 5 | #[derive(Clone,Copy,Default,PartialEq)] | |
| 6 | enum CompressionLevel { | |
| 7 | None, | |
| 8 | Fast, | |
| 9 | #[default] | |
| 10 | Best | |
| 11 | } | |
| 12 | ||
| 13 | impl std::string::ToString for CompressionLevel { | |
| 14 | fn to_string(&self) -> String { | |
| 15 | match *self { | |
| 16 | CompressionLevel::None => "none".to_string(), | |
| 17 | CompressionLevel::Fast => "fast".to_string(), | |
| 18 | CompressionLevel::Best => "best".to_string(), | |
| 19 | } | |
| 20 | } | |
| 21 | } | |
| 22 | ||
| 23 | const NO_CODE: u16 = 0; | |
| 24 | ||
| 25 | struct LZWDictionary { | |
| 26 | cur_size: usize, | |
| 27 | bit_len: u8, | |
| 28 | clear_code: u16, | |
| 29 | end_code: u16, | |
| 30 | orig_len: u8, | |
| 31 | trie: Vec<[u16; 257]>, | |
| 32 | } | |
| 33 | ||
| 34 | impl LZWDictionary { | |
| 35 | fn new() -> Self { | |
| 36 | Self { | |
| 37 | trie: Vec::with_capacity(4096), | |
| 38 | cur_size: 0, | |
| 39 | bit_len: 0, | |
| 40 | clear_code: 0, | |
| 41 | end_code: 0, | |
| 42 | orig_len: 0, | |
| 43 | } | |
| 44 | } | |
| 45 | fn init(&mut self, bits: u8) { | |
| 46 | self.cur_size = (1 << bits) + 2; | |
| 47 | self.bit_len = bits + 1; | |
| 48 | self.clear_code = 1 << bits; | |
| 49 | self.end_code = self.clear_code + 1; | |
| 50 | self.orig_len = self.bit_len; | |
| 51 | ||
| 52 | self.trie.clear(); | |
| 53 | for _ in 0..self.cur_size { | |
| 54 | self.trie.push([NO_CODE; 257]); | |
| 55 | } | |
| 56 | for (idx, nodes) in self.trie.iter_mut().enumerate() { | |
| 57 | nodes[256] = idx as u16; | |
| 58 | } | |
| 59 | } | |
| 60 | fn find(&self, src: &[u8]) -> (u16, usize, usize) { | |
| 61 | let mut idx = usize::from(src[0]); | |
| 62 | let mut last_len = 0; | |
| 63 | for (pos, &next) in src.iter().enumerate().skip(1) { | |
| 64 | let next = usize::from(next); | |
| 65 | if self.trie[idx][next] != NO_CODE { | |
| 66 | idx = usize::from(self.trie[idx][next]); | |
| 67 | } else { | |
| 68 | return (self.trie[idx][256], pos, idx); | |
| 69 | } | |
| 70 | last_len = pos; | |
| 71 | } | |
| 72 | (self.trie[idx][256], last_len + 1, idx) | |
| 73 | } | |
| 74 | fn add(&mut self, lastidx: usize, next: u8) { | |
| 75 | if self.cur_size >= (1 << 12) { | |
| 76 | return; | |
| 77 | } | |
| 78 | let next = usize::from(next); | |
| 79 | if self.trie[lastidx][next] == NO_CODE { | |
| 80 | let newnode = self.trie.len(); | |
| 81 | self.trie.push([NO_CODE; 257]); | |
| 82 | self.trie[newnode][256] = self.cur_size as u16; | |
| 83 | self.trie[lastidx][next] = newnode as u16; | |
| 84 | } | |
| 85 | if (self.cur_size & (self.cur_size - 1)) == 0 && self.bit_len < 12 { | |
| 86 | self.bit_len += 1; | |
| 87 | } | |
| 88 | self.cur_size += 1; | |
| 89 | } | |
| 90 | fn reset(&mut self) { | |
| 91 | self.bit_len = self.orig_len; | |
| 92 | self.cur_size = usize::from(self.end_code) + 1; | |
| 93 | self.trie.truncate(self.cur_size); | |
| 94 | for nodes in self.trie.iter_mut() { | |
| 95 | for el in nodes[..256].iter_mut() { | |
| 96 | *el = NO_CODE; | |
| 97 | } | |
| 98 | } | |
| 99 | } | |
| 100 | } | |
| 101 | ||
| 102 | struct LZWEncoder { | |
| 103 | dict: LZWDictionary, | |
| 104 | level: CompressionLevel, | |
| 105 | tmp: Vec<u8>, | |
| 106 | } | |
| 107 | ||
| 108 | impl LZWEncoder { | |
| 109 | fn new() -> Self { | |
| 110 | Self { | |
| 111 | dict: LZWDictionary::new(), | |
| 112 | level: CompressionLevel::default(), | |
| 113 | tmp: Vec::new(), | |
| 114 | } | |
| 115 | } | |
| 116 | fn compress(&mut self, writer: &mut ByteWriter, src: &[u8]) -> EncoderResult<()> { | |
| 117 | let clr_bits: u8 = if self.level != CompressionLevel::None { | |
| 118 | let maxclr = u16::from(src.iter().fold(0u8, |acc, &a| acc.max(a))) + 1; | |
| 119 | let mut bits = 2; | |
| 120 | while (1 << bits) < maxclr { | |
| 121 | bits += 1; | |
| 122 | } | |
| 123 | bits | |
| 124 | } else { 8 }; | |
| 125 | ||
| 126 | self.dict.init(clr_bits); | |
| 127 | ||
| 128 | self.tmp.clear(); | |
| 129 | let mut tbuf = Vec::new(); | |
| 130 | std::mem::swap(&mut tbuf, &mut self.tmp); | |
| 131 | let mut bw = BitWriter::new(tbuf, BitWriterMode::LE); | |
| 132 | ||
| 133 | bw.write(u32::from(self.dict.clear_code), self.dict.bit_len); | |
| 134 | ||
| 135 | match self.level { | |
| 136 | CompressionLevel::None => { | |
| 8fd97a64 | 137 | let sym_limit = 1 << (clr_bits + 1); |
| fc39649d | 138 | for &b in src.iter() { |
| 8fd97a64 KS |
139 | if self.dict.cur_size >= sym_limit { |
| 140 | bw.write(u32::from(self.dict.clear_code), self.dict.bit_len); | |
| 141 | self.dict.reset(); | |
| 142 | } | |
| fc39649d KS |
143 | bw.write(u32::from(b), self.dict.bit_len); |
| 144 | self.dict.add(usize::from(b), 0); | |
| 145 | } | |
| 146 | }, | |
| 147 | CompressionLevel::Fast => { | |
| 148 | let mut pos = 0; | |
| 149 | while pos < src.len() { | |
| 150 | let (idx, len, trieidx) = self.dict.find(&src[pos..]); | |
| 151 | bw.write(u32::from(idx), self.dict.bit_len); | |
| 152 | pos += len; | |
| 153 | if pos < src.len() { | |
| 154 | self.dict.add(trieidx, src[pos]); | |
| 155 | } | |
| 156 | if self.dict.cur_size == 4096 { | |
| 157 | bw.write(u32::from(self.dict.clear_code), self.dict.bit_len); | |
| 158 | self.dict.reset(); | |
| 159 | } | |
| 160 | } | |
| 161 | }, | |
| 162 | CompressionLevel::Best => { | |
| 163 | let mut pos = 0; | |
| 164 | let mut hist = [0; 16]; | |
| 165 | let mut avg = 0; | |
| 166 | let mut avg1 = 0; | |
| 167 | let mut hpos = 0; | |
| 168 | while pos < src.len() { | |
| 169 | let (idx, len, trieidx) = self.dict.find(&src[pos..]); | |
| 170 | bw.write(u32::from(idx), self.dict.bit_len); | |
| 171 | pos += len; | |
| 172 | if pos >= src.len() { | |
| 173 | break; | |
| 174 | } | |
| 175 | self.dict.add(trieidx, src[pos]); | |
| 176 | ||
| 177 | avg1 -= hist[(hpos + 1) & 0xF]; | |
| 178 | avg1 += len; | |
| 179 | if self.dict.cur_size == 4096 && (avg1 < avg - avg / 8) { | |
| 180 | bw.write(u32::from(self.dict.clear_code), self.dict.bit_len); | |
| 181 | self.dict.reset(); | |
| 182 | } | |
| 183 | avg = avg1; | |
| 184 | hpos = (hpos + 1) & 0xF; | |
| 185 | hist[hpos] = len; | |
| 186 | } | |
| 187 | }, | |
| 188 | }; | |
| 189 | ||
| 190 | bw.write(u32::from(self.dict.end_code), self.dict.bit_len); | |
| 191 | tbuf = bw.end(); | |
| 192 | std::mem::swap(&mut tbuf, &mut self.tmp); | |
| 193 | ||
| 194 | writer.write_byte(clr_bits)?; | |
| 195 | for chunk in self.tmp.chunks(255) { | |
| 196 | writer.write_byte(chunk.len() as u8)?; | |
| 197 | writer.write_buf(chunk)?; | |
| 198 | } | |
| 199 | writer.write_byte(0x00)?; // data end marker | |
| 200 | Ok(()) | |
| 201 | } | |
| 202 | } | |
| 203 | ||
| 204 | struct GIFEncoder { | |
| 205 | stream: Option<NAStreamRef>, | |
| 206 | cur_frm: Vec<u8>, | |
| 207 | prev_frm: Vec<u8>, | |
| 208 | tmp_buf: Vec<u8>, | |
| 209 | pal: [u8; 768], | |
| 210 | pkt: Option<NAPacket>, | |
| 211 | first: bool, | |
| 212 | width: usize, | |
| 213 | height: usize, | |
| 214 | lzw: LZWEncoder, | |
| 215 | p_trans: bool, | |
| 216 | tr_idx: Option<u8>, | |
| 217 | } | |
| 218 | ||
| 219 | impl GIFEncoder { | |
| 220 | fn new() -> Self { | |
| 221 | Self { | |
| 222 | stream: None, | |
| 223 | pkt: None, | |
| 224 | cur_frm: Vec::new(), | |
| 225 | prev_frm: Vec::new(), | |
| 226 | pal: [0; 768], | |
| 227 | tmp_buf: Vec::new(), | |
| 228 | first: true, | |
| 229 | width: 0, | |
| 230 | height: 0, | |
| 231 | lzw: LZWEncoder::new(), | |
| 232 | p_trans: false, | |
| 233 | tr_idx: None, | |
| 234 | } | |
| 235 | } | |
| 236 | fn write_dummy_frame(&mut self, bw: &mut ByteWriter) -> EncoderResult<()> { | |
| 237 | let mut pix = [self.cur_frm[0]]; | |
| 238 | if let (true, Some(tr_idx)) = (self.p_trans, self.tr_idx) { | |
| 239 | if tr_idx < pix[0] { | |
| 240 | pix[0] = tr_idx; | |
| 241 | } | |
| 242 | } | |
| 243 | ||
| 244 | // 1x1 image descriptor | |
| 245 | bw.write_buf(&[0x2C, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00])?; | |
| 246 | self.lzw.compress(bw, &pix)?; | |
| 247 | Ok(()) | |
| 248 | } | |
| 249 | } | |
| 250 | ||
| 251 | impl NAEncoder for GIFEncoder { | |
| 252 | fn negotiate_format(&self, encinfo: &EncodeParameters) -> EncoderResult<EncodeParameters> { | |
| 253 | match encinfo.format { | |
| 254 | NACodecTypeInfo::None => { | |
| 255 | Ok(EncodeParameters { | |
| 256 | format: NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, true, YUV420_FORMAT)), | |
| 257 | ..Default::default() | |
| 258 | }) | |
| 259 | }, | |
| 260 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), | |
| 261 | NACodecTypeInfo::Video(vinfo) => { | |
| 262 | let outinfo = NAVideoInfo::new(vinfo.width, vinfo.height, false, PAL8_FORMAT); | |
| 263 | let mut ofmt = *encinfo; | |
| 264 | ofmt.format = NACodecTypeInfo::Video(outinfo); | |
| 265 | Ok(ofmt) | |
| 266 | } | |
| 267 | } | |
| 268 | } | |
| 269 | fn get_capabilities(&self) -> u64 { ENC_CAPS_SKIPFRAME } | |
| 270 | fn init(&mut self, stream_id: u32, encinfo: EncodeParameters) -> EncoderResult<NAStreamRef> { | |
| 271 | match encinfo.format { | |
| 272 | NACodecTypeInfo::None => Err(EncoderError::FormatError), | |
| 273 | NACodecTypeInfo::Audio(_) => Err(EncoderError::FormatError), | |
| 274 | NACodecTypeInfo::Video(vinfo) => { | |
| 275 | if vinfo.width > 65535 || vinfo.height > 65535 { | |
| 276 | return Err(EncoderError::FormatError); | |
| 277 | } | |
| 278 | self.width = vinfo.width; | |
| 279 | self.height = vinfo.height; | |
| 280 | ||
| 281 | let edata = self.tr_idx.map(|val| vec![val]); | |
| 282 | ||
| 283 | let out_info = NAVideoInfo::new(vinfo.width, vinfo.height, false, PAL8_FORMAT); | |
| 284 | let info = NACodecInfo::new("gif", NACodecTypeInfo::Video(out_info), edata); | |
| 285 | let mut stream = NAStream::new(StreamType::Video, stream_id, info, encinfo.tb_num, encinfo.tb_den, 0); | |
| 286 | stream.set_num(stream_id as usize); | |
| 287 | let stream = stream.into_ref(); | |
| 288 | ||
| 289 | self.stream = Some(stream.clone()); | |
| 290 | ||
| 291 | self.cur_frm = vec![0; vinfo.width * vinfo.height]; | |
| 292 | self.prev_frm = vec![0; vinfo.width * vinfo.height]; | |
| 293 | self.tmp_buf.clear(); | |
| 294 | self.tmp_buf.reserve(vinfo.width * vinfo.height); | |
| 295 | ||
| 296 | self.first = true; | |
| 297 | ||
| 298 | Ok(stream) | |
| 299 | }, | |
| 300 | } | |
| 301 | } | |
| 302 | fn encode(&mut self, frm: &NAFrame) -> EncoderResult<()> { | |
| 303 | let mut dbuf = Vec::with_capacity(4); | |
| 304 | let mut gw = GrowableMemoryWriter::new_write(&mut dbuf); | |
| 305 | let mut bw = ByteWriter::new(&mut gw); | |
| 306 | ||
| 307 | self.tmp_buf.clear(); | |
| 308 | ||
| 309 | match frm.get_buffer() { | |
| 310 | NABufferType::Video(ref buf) => { | |
| 311 | let src = buf.get_data(); | |
| 312 | let stride = buf.get_stride(0); | |
| 313 | let src = &src[buf.get_offset(0)..]; | |
| 314 | ||
| 315 | for (dline, sline) in self.cur_frm.chunks_exact_mut(self.width) | |
| 316 | .zip(src.chunks_exact(stride)) { | |
| 317 | dline.copy_from_slice(&sline[..self.width]); | |
| 318 | } | |
| 319 | ||
| 320 | let cur_pal = &src[buf.get_offset(1)..][..768]; | |
| 321 | if self.first { | |
| 322 | self.pal.copy_from_slice(cur_pal); | |
| 323 | } | |
| 324 | ||
| 325 | let mut pal_changed = false; | |
| 326 | if !self.first { | |
| 327 | let mut used = [false; 256]; | |
| 328 | for &b in self.cur_frm.iter() { | |
| 329 | used[usize::from(b)] = true; | |
| 330 | } | |
| 331 | for (&used, (pal1, pal2)) in used.iter() | |
| 332 | .zip(self.pal.chunks_exact(3).zip(cur_pal.chunks_exact(3))) { | |
| 333 | if used && (pal1 != pal2) { | |
| 334 | pal_changed = true; | |
| 335 | break; | |
| 336 | } | |
| 337 | } | |
| 338 | } | |
| 339 | ||
| 340 | if self.first { | |
| 341 | bw.write_byte(0x2C)?; // image descriptor | |
| 342 | bw.write_u16le(0)?; // left | |
| 343 | bw.write_u16le(0)?; // top | |
| 344 | bw.write_u16le(self.width as u16)?; | |
| 345 | bw.write_u16le(self.height as u16)?; | |
| 346 | bw.write_byte(0)?; // flags | |
| 347 | self.lzw.compress(&mut bw, &self.cur_frm)?; | |
| 348 | } else { | |
| 349 | let mut top = 0; | |
| 350 | for (y, (line1, line2)) in self.cur_frm.chunks_exact(self.width) | |
| 351 | .zip(self.prev_frm.chunks_exact(self.width)).enumerate() { | |
| 352 | if line1 == line2 { | |
| 353 | top = y; | |
| 354 | } else { | |
| 355 | break; | |
| 356 | } | |
| 357 | } | |
| 358 | if top != self.height - 1 { | |
| 359 | let mut bot = self.height; | |
| 360 | for (y, (line1, line2)) in self.cur_frm.chunks_exact(self.width) | |
| 361 | .zip(self.prev_frm.chunks_exact(self.width)).enumerate().rev() { | |
| 362 | if line1 == line2 { | |
| 363 | bot = y + 1; | |
| 364 | } else { | |
| 365 | break; | |
| 366 | } | |
| 367 | } | |
| 368 | let mut left = self.width - 1; | |
| 369 | let mut right = 0; | |
| 370 | for (line1, line2) in self.cur_frm.chunks_exact(self.width) | |
| 371 | .zip(self.prev_frm.chunks_exact(self.width)) | |
| 372 | .skip(top).take(bot - top) { | |
| 373 | if left > 0 { | |
| 374 | let mut cur_l = 0; | |
| 375 | for (x, (&p1, &p2)) in line1.iter().zip(line2.iter()).enumerate() { | |
| 376 | if p1 == p2 { | |
| 377 | cur_l = x + 1; | |
| 378 | } else { | |
| 379 | break; | |
| 380 | } | |
| 381 | } | |
| 382 | left = left.min(cur_l); | |
| 383 | } | |
| 384 | if right < self.width { | |
| 385 | let mut cur_r = self.width; | |
| 386 | for (x, (&p1, &p2)) in line1.iter().zip(line2.iter()) | |
| 387 | .enumerate().rev() { | |
| 388 | if p1 == p2 { | |
| 389 | cur_r = x + 1; | |
| 390 | } else { | |
| 391 | break; | |
| 392 | } | |
| 393 | } | |
| 394 | right = right.max(cur_r); | |
| 395 | } | |
| 396 | } | |
| 397 | self.tmp_buf.clear(); | |
| 398 | let use_transparency = self.p_trans && self.tr_idx.is_some(); | |
| 399 | let full_frame = right == 0 && top == 0 && left == self.width && bot == self.height; | |
| 400 | ||
| 401 | let pic = match (use_transparency, full_frame) { | |
| 402 | (true, _) => { | |
| 403 | let tr_idx = self.tr_idx.unwrap_or(0); | |
| 404 | for (cline, pline) in self.cur_frm.chunks_exact(self.width) | |
| 405 | .zip(self.prev_frm.chunks_exact(self.width)) | |
| 406 | .skip(top).take(bot - top) { | |
| 407 | for (&cpix, &ppix) in cline[left..right].iter() | |
| 408 | .zip(pline[left..right].iter()) { | |
| 409 | self.tmp_buf.push(if cpix == ppix { tr_idx } else { cpix }); | |
| 410 | } | |
| 411 | } | |
| 412 | &self.tmp_buf | |
| 413 | }, | |
| 414 | (false, true) => { | |
| 415 | &self.cur_frm | |
| 416 | }, | |
| 417 | (false, false) => { | |
| 418 | for line in self.cur_frm.chunks_exact(self.width) | |
| 419 | .skip(top).take(bot - top) { | |
| 420 | self.tmp_buf.extend_from_slice(&line[left..right]); | |
| 421 | } | |
| 422 | &self.tmp_buf | |
| 423 | }, | |
| 424 | }; | |
| 425 | ||
| 426 | bw.write_byte(0x2C)?; // image descriptor | |
| 427 | bw.write_u16le(left as u16)?; | |
| 428 | bw.write_u16le(top as u16)?; | |
| 429 | bw.write_u16le((right - left) as u16)?; | |
| 430 | bw.write_u16le((bot - top) as u16)?; | |
| 431 | if !pal_changed { | |
| 432 | bw.write_byte(0)?; // flags | |
| 433 | } else { | |
| 434 | let maxclr = pic.iter().fold(0u8, |acc, &a| acc.max(a)); | |
| 435 | let clr_bits = if maxclr > 128 { | |
| 436 | 8 | |
| 437 | } else { | |
| 438 | let mut bits = 1; | |
| 439 | while (1 << bits) < maxclr { | |
| 440 | bits += 1; | |
| 441 | } | |
| 442 | bits | |
| 443 | }; | |
| 444 | bw.write_byte(0x80 | (clr_bits - 1))?; | |
| 445 | bw.write_buf(&cur_pal[..(3 << clr_bits)])?; | |
| 446 | } | |
| 447 | self.lzw.compress(&mut bw, pic)?; | |
| 448 | } else { | |
| 449 | self.write_dummy_frame(&mut bw)?; | |
| 450 | } | |
| 451 | } | |
| 452 | }, | |
| 453 | NABufferType::None if !self.first => { | |
| 454 | self.write_dummy_frame(&mut bw)?; | |
| 455 | }, | |
| 456 | _ => return Err(EncoderError::InvalidParameters), | |
| 457 | }; | |
| 458 | ||
| 459 | self.pkt = Some(NAPacket::new(self.stream.clone().unwrap(), frm.ts, self.first, dbuf)); | |
| 460 | self.first = false; | |
| 461 | ||
| 462 | if let NABufferType::Video(ref buf) = frm.get_buffer() { | |
| 463 | let paloff = buf.get_offset(1); | |
| 464 | let data = buf.get_data(); | |
| 465 | let mut pal = [0; 1024]; | |
| 466 | let srcpal = &data[paloff..][..768]; | |
| 467 | for (dclr, sclr) in pal.chunks_exact_mut(4).zip(srcpal.chunks_exact(3)) { | |
| 468 | dclr[..3].copy_from_slice(sclr); | |
| 469 | } | |
| 470 | if let Some(ref mut pkt) = &mut self.pkt { | |
| 471 | pkt.side_data.push(NASideData::Palette(true, Arc::new(pal))); | |
| 472 | } | |
| 473 | } | |
| 474 | ||
| 475 | std::mem::swap(&mut self.cur_frm, &mut self.prev_frm); | |
| 476 | Ok(()) | |
| 477 | } | |
| 478 | fn get_packet(&mut self) -> EncoderResult<Option<NAPacket>> { | |
| 479 | let mut npkt = None; | |
| 480 | std::mem::swap(&mut self.pkt, &mut npkt); | |
| 481 | Ok(npkt) | |
| 482 | } | |
| 483 | fn flush(&mut self) -> EncoderResult<()> { | |
| 484 | Ok(()) | |
| 485 | } | |
| 486 | } | |
| 487 | ||
| 488 | const ENCODER_OPTS: &[NAOptionDefinition] = &[ | |
| 489 | NAOptionDefinition { | |
| 490 | name: "compr", description: "Compression level", | |
| 491 | opt_type: NAOptionDefinitionType::String(Some(&["none", "fast", "best"])) }, | |
| 492 | NAOptionDefinition { | |
| 493 | name: "inter_transparent", description: "Code changed regions with transparency", | |
| 494 | opt_type: NAOptionDefinitionType::Bool }, | |
| 495 | NAOptionDefinition { | |
| 496 | name: "transparent_idx", description: "Palette index to use for transparency (on inter frames too if requested)", | |
| 497 | opt_type: NAOptionDefinitionType::Int(Some(-1), Some(255)) }, | |
| 498 | ]; | |
| 499 | ||
| 500 | impl NAOptionHandler for GIFEncoder { | |
| 501 | fn get_supported_options(&self) -> &[NAOptionDefinition] { ENCODER_OPTS } | |
| 502 | fn set_options(&mut self, options: &[NAOption]) { | |
| 503 | for option in options.iter() { | |
| 504 | for opt_def in ENCODER_OPTS.iter() { | |
| 505 | if opt_def.check(option).is_ok() { | |
| 506 | match option.name { | |
| 507 | "compr" => { | |
| 508 | if let NAValue::String(ref strval) = option.value { | |
| 509 | match strval.as_str() { | |
| 510 | "none" => self.lzw.level = CompressionLevel::None, | |
| 511 | "fast" => self.lzw.level = CompressionLevel::Fast, | |
| 512 | "best" => self.lzw.level = CompressionLevel::Best, | |
| 513 | _ => {}, | |
| 514 | }; | |
| 515 | } | |
| 516 | }, | |
| 517 | "inter_transparent" => { | |
| 518 | if let NAValue::Bool(bval) = option.value { | |
| 519 | self.p_trans = bval; | |
| 520 | } | |
| 521 | }, | |
| 522 | "transparent_idx" => { | |
| 523 | if let NAValue::Int(ival) = option.value { | |
| 524 | self.tr_idx = if ival >= 0 { Some(ival as u8) } else { None }; | |
| 525 | } | |
| 526 | }, | |
| 527 | _ => {}, | |
| 528 | }; | |
| 529 | } | |
| 530 | } | |
| 531 | } | |
| 532 | } | |
| 533 | fn query_option_value(&self, name: &str) -> Option<NAValue> { | |
| 534 | match name { | |
| 535 | "compr" => Some(NAValue::String(self.lzw.level.to_string())), | |
| 536 | "inter_transparent" => Some(NAValue::Bool(self.p_trans)), | |
| 537 | "transparent_idx" => Some(NAValue::Int(self.tr_idx.map_or(-1i64, i64::from))), | |
| 538 | _ => None, | |
| 539 | } | |
| 540 | } | |
| 541 | } | |
| 542 | ||
| 543 | pub fn get_encoder() -> Box<dyn NAEncoder + Send> { | |
| 544 | Box::new(GIFEncoder::new()) | |
| 545 | } | |
| 546 | ||
| 547 | #[cfg(test)] | |
| 548 | mod test { | |
| 549 | use nihav_core::codecs::*; | |
| 550 | use nihav_core::demuxers::*; | |
| 551 | use nihav_core::muxers::*; | |
| 552 | use crate::*; | |
| 553 | use nihav_codec_support::test::enc_video::*; | |
| 554 | ||
| 555 | // sample: https://samples.mplayerhq.hu/V-codecs/Uncompressed/8bpp.avi | |
| 556 | fn test_gif_encoder_single(out_name: &'static str, enc_options: &[NAOption], hash: &[u32; 4]) { | |
| 557 | let mut dmx_reg = RegisteredDemuxers::new(); | |
| 558 | generic_register_all_demuxers(&mut dmx_reg); | |
| 559 | let mut dec_reg = RegisteredDecoders::new(); | |
| 560 | generic_register_all_decoders(&mut dec_reg); | |
| 561 | let mut mux_reg = RegisteredMuxers::new(); | |
| 562 | generic_register_all_muxers(&mut mux_reg); | |
| 563 | let mut enc_reg = RegisteredEncoders::new(); | |
| 564 | generic_register_all_encoders(&mut enc_reg); | |
| 565 | ||
| 566 | let dec_config = DecoderTestParams { | |
| 567 | demuxer: "avi", | |
| 568 | in_name: "assets/Misc/8bpp.avi", | |
| 569 | stream_type: StreamType::Video, | |
| 570 | limit: Some(0), | |
| 571 | dmx_reg, dec_reg, | |
| 572 | }; | |
| 573 | let enc_config = EncoderTestParams { | |
| 574 | muxer: "gif", | |
| 575 | enc_name: "gif", | |
| 576 | out_name, | |
| 577 | mux_reg, enc_reg, | |
| 578 | }; | |
| 579 | let dst_vinfo = NAVideoInfo { | |
| 580 | width: 0, | |
| 581 | height: 0, | |
| 582 | format: PAL8_FORMAT, | |
| 583 | flipped: false, | |
| 584 | bits: 8, | |
| 585 | }; | |
| 586 | let enc_params = EncodeParameters { | |
| 587 | format: NACodecTypeInfo::Video(dst_vinfo), | |
| 588 | quality: 0, | |
| 589 | bitrate: 0, | |
| 590 | tb_num: 0, | |
| 591 | tb_den: 0, | |
| 592 | flags: 0, | |
| 593 | }; | |
| 594 | //test_encoding_to_file(&dec_config, &enc_config, enc_params, enc_options); | |
| 595 | test_encoding_md5(&dec_config, &enc_config, enc_params, enc_options, hash); | |
| 596 | } | |
| 597 | // sample: https://samples.mplayerhq.hu/image-samples/GIF/3D.gif | |
| 598 | fn test_gif_anim(out_name: &'static str, enc_options: &[NAOption], hash: &[u32; 4]) { | |
| 599 | let mut dmx_reg = RegisteredDemuxers::new(); | |
| 600 | generic_register_all_demuxers(&mut dmx_reg); | |
| 601 | let mut dec_reg = RegisteredDecoders::new(); | |
| 602 | generic_register_all_decoders(&mut dec_reg); | |
| 603 | let mut mux_reg = RegisteredMuxers::new(); | |
| 604 | generic_register_all_muxers(&mut mux_reg); | |
| 605 | let mut enc_reg = RegisteredEncoders::new(); | |
| 606 | generic_register_all_encoders(&mut enc_reg); | |
| 607 | ||
| 608 | let dec_config = DecoderTestParams { | |
| 609 | demuxer: "gif", | |
| 610 | in_name: "assets/Misc/3D.gif", | |
| 611 | stream_type: StreamType::Video, | |
| 612 | limit: None, | |
| 613 | dmx_reg, dec_reg, | |
| 614 | }; | |
| 615 | let enc_config = EncoderTestParams { | |
| 616 | muxer: "gif", | |
| 617 | enc_name: "gif", | |
| 618 | out_name, | |
| 619 | mux_reg, enc_reg, | |
| 620 | }; | |
| 621 | let dst_vinfo = NAVideoInfo { | |
| 622 | width: 0, | |
| 623 | height: 0, | |
| 624 | format: PAL8_FORMAT, | |
| 625 | flipped: false, | |
| 626 | bits: 8, | |
| 627 | }; | |
| 628 | let enc_params = EncodeParameters { | |
| 629 | format: NACodecTypeInfo::Video(dst_vinfo), | |
| 630 | quality: 0, | |
| 631 | bitrate: 0, | |
| 632 | tb_num: 0, | |
| 633 | tb_den: 0, | |
| 634 | flags: 0, | |
| 635 | }; | |
| 636 | //test_encoding_to_file(&dec_config, &enc_config, enc_params, enc_options); | |
| 637 | test_encoding_md5(&dec_config, &enc_config, enc_params, enc_options, hash); | |
| 638 | } | |
| 639 | #[test] | |
| 640 | fn test_gif_single_none() { | |
| 641 | let enc_options = &[ | |
| 642 | NAOption { name: "compr", value: NAValue::String("none".to_string()) }, | |
| 643 | ]; | |
| 8fd97a64 | 644 | test_gif_encoder_single("none.gif", enc_options, &[0x32900cff, 0xef979bb0, 0x2d0355e8, 0x424bddee]); |
| fc39649d KS |
645 | } |
| 646 | #[test] | |
| 647 | fn test_gif_single_fast() { | |
| 648 | let enc_options = &[ | |
| 649 | NAOption { name: "compr", value: NAValue::String("fast".to_string()) }, | |
| 650 | ]; | |
| 651 | test_gif_encoder_single("fast.gif", enc_options, &[0x9644f682, 0x497593cd, 0xdabb483d, 0x8fce63f4]); | |
| 652 | } | |
| 653 | #[test] | |
| 654 | fn test_gif_single_best() { | |
| 655 | let enc_options = &[ | |
| 656 | NAOption { name: "compr", value: NAValue::String("best".to_string()) }, | |
| 657 | ]; | |
| 658 | test_gif_encoder_single("best.gif", enc_options, &[0x9644f682, 0x497593cd, 0xdabb483d, 0x8fce63f4]); | |
| 659 | } | |
| 660 | #[test] | |
| 661 | fn test_gif_anim_opaque() { | |
| 662 | let enc_options = &[ | |
| 663 | NAOption { name: "compr", value: NAValue::String("fast".to_string()) }, | |
| 664 | ]; | |
| 665 | test_gif_anim("anim-opaque.gif", enc_options, &[0x58489e31, 0x1721d75e, 0xaebf93f2, 0x3fea9c6e]); | |
| 666 | } | |
| 667 | #[test] | |
| 668 | fn test_gif_anim_transparent() { | |
| 669 | let enc_options = &[ | |
| 670 | NAOption { name: "compr", value: NAValue::String("fast".to_string()) }, | |
| 671 | NAOption { name: "inter_transparent", value: NAValue::Bool(true) }, | |
| 672 | NAOption { name: "transparent_idx", value: NAValue::Int(0x7F) }, | |
| 673 | ]; | |
| 674 | test_gif_anim("anim-transp.gif", enc_options, &[0x62df6232, 0x0c334457, 0x73738404, 0xa8829dcc]); | |
| 675 | } | |
| 676 | } |