| 1 | use nihav_core::demuxers::*; |
| 2 | use nihav_registry::register; |
| 3 | use nihav_core::demuxers::DemuxerError::*; |
| 4 | use std::str::FromStr; |
| 5 | |
| 6 | macro_rules! mktag { |
| 7 | ($a:expr, $b:expr, $c:expr, $d:expr) => ({ |
| 8 | (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32) |
| 9 | }); |
| 10 | ($arr:expr) => ({ |
| 11 | (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32) |
| 12 | }); |
| 13 | } |
| 14 | |
| 15 | struct StreamState { |
| 16 | strm_no: u8, |
| 17 | got_strf: bool, |
| 18 | strm_type: Option<StreamType>, |
| 19 | } |
| 20 | |
| 21 | impl StreamState { |
| 22 | fn new() -> Self { |
| 23 | StreamState { strm_no: 0, got_strf: true, strm_type: None } |
| 24 | } |
| 25 | fn reset(&mut self) { |
| 26 | self.strm_type = None; |
| 27 | self.got_strf = true; |
| 28 | self.strm_no += 1; |
| 29 | } |
| 30 | fn valid_state(&self) -> bool { |
| 31 | match self.strm_type { |
| 32 | None => self.got_strf, |
| 33 | _ => false, |
| 34 | } |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | struct PalInfo { |
| 39 | pal: Arc<[u8; 1024]>, |
| 40 | changed: bool, |
| 41 | stream_no: usize, |
| 42 | } |
| 43 | |
| 44 | #[derive(Clone,Copy,Default)] |
| 45 | struct RIFFSegment { |
| 46 | pos: u64, |
| 47 | size: usize, |
| 48 | movi_pos: u64, |
| 49 | movi_size: usize, |
| 50 | } |
| 51 | |
| 52 | impl RIFFSegment { |
| 53 | fn contains(&self, pos: u64) -> bool { |
| 54 | pos >= self.movi_pos && pos < self.movi_pos + (self.movi_size as u64) |
| 55 | } |
| 56 | fn get_end(&self) -> u64 { |
| 57 | self.pos + (self.size as u64) |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | #[allow(dead_code)] |
| 62 | struct AVIDemuxer<'a> { |
| 63 | src: &'a mut ByteReader<'a>, |
| 64 | cur_frame: Vec<u64>, |
| 65 | num_streams: u8, |
| 66 | size: usize, |
| 67 | movi_size: usize, |
| 68 | movi_pos: u64, |
| 69 | movi_orig: usize, |
| 70 | sstate: StreamState, |
| 71 | tb_num: u32, |
| 72 | tb_den: u32, |
| 73 | strm_duration: u32, |
| 74 | key_offs: Vec<u64>, |
| 75 | pal: Vec<PalInfo>, |
| 76 | odml: bool, |
| 77 | odml_idx: Vec<u64>, |
| 78 | odml_riff: Vec<RIFFSegment>, |
| 79 | } |
| 80 | |
| 81 | #[derive(Debug,Clone,Copy,PartialEq)] |
| 82 | enum RIFFTag { |
| 83 | Chunk(u32), |
| 84 | List(u32,u32), |
| 85 | } |
| 86 | |
| 87 | struct RIFFParser { |
| 88 | tag: RIFFTag, |
| 89 | parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>, |
| 90 | } |
| 91 | |
| 92 | impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { |
| 93 | fn open(&mut self, strmgr: &mut StreamManager, seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
| 94 | self.read_header(strmgr, seek_index)?; |
| 95 | Ok(()) |
| 96 | } |
| 97 | |
| 98 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 99 | if self.movi_size == 0 { |
| 100 | if !self.odml { |
| 101 | return Err(EOF); |
| 102 | } |
| 103 | self.try_next_odml_chunk()?; |
| 104 | } |
| 105 | let mut tag: [u8; 4] = [0; 4]; |
| 106 | loop { |
| 107 | if (self.src.tell() & 1) == 1 { |
| 108 | self.src.read_skip(1)?; |
| 109 | self.movi_size -= 1; |
| 110 | if self.movi_size == 0 { |
| 111 | if !self.odml { |
| 112 | return Err(EOF); |
| 113 | } |
| 114 | self.try_next_odml_chunk()?; |
| 115 | } |
| 116 | } |
| 117 | let is_keyframe = self.key_offs.binary_search(&self.src.tell()).is_ok(); |
| 118 | self.src.read_buf(&mut tag)?; |
| 119 | let size = self.src.read_u32le()? as usize; |
| 120 | if mktag!(tag) == mktag!(b"JUNK") { |
| 121 | self.movi_size -= size + 8; |
| 122 | self.src.read_skip(size)?; |
| 123 | if self.movi_size == 0 { |
| 124 | if !self.odml { |
| 125 | return Err(EOF); |
| 126 | } |
| 127 | self.try_next_odml_chunk()?; |
| 128 | } |
| 129 | continue; |
| 130 | } |
| 131 | if mktag!(tag) == mktag!(b"LIST") { |
| 132 | self.movi_size -= 12; |
| 133 | self.src.read_skip(4)?; |
| 134 | if self.movi_size == 0 { |
| 135 | if !self.odml { |
| 136 | return Err(EOF); |
| 137 | } |
| 138 | self.try_next_odml_chunk()?; |
| 139 | } |
| 140 | continue; |
| 141 | } |
| 142 | if (tag[0] == b'i' && tag[1] == b'x') || (&tag == b"idx1") { |
| 143 | let idx_pos = self.src.tell() - 8; |
| 144 | if !self.odml { |
| 145 | return Err(EOF); |
| 146 | } |
| 147 | self.src.read_skip(size)?; |
| 148 | if idx_pos > self.movi_pos { |
| 149 | self.try_next_odml_chunk()?; |
| 150 | } else { |
| 151 | self.movi_pos = self.src.tell(); |
| 152 | } |
| 153 | continue; |
| 154 | } |
| 155 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
| 156 | return Err(InvalidData); |
| 157 | } |
| 158 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); |
| 159 | if tag[2] == b'p' && tag[3] == b'c' { |
| 160 | self.parse_palette_change(stream_no as usize, size)?; |
| 161 | self.movi_size -= size; |
| 162 | if self.movi_size == 0 { |
| 163 | if !self.odml { |
| 164 | return Err(EOF); |
| 165 | } |
| 166 | self.try_next_odml_chunk()?; |
| 167 | } |
| 168 | continue; |
| 169 | } |
| 170 | let stream = strmgr.get_stream(stream_no as usize); |
| 171 | if stream.is_none() { |
| 172 | self.src.read_skip(size)?; |
| 173 | self.movi_size -= size + 8; |
| 174 | continue; |
| 175 | } |
| 176 | let stream = stream.unwrap(); |
| 177 | if size == 0 { |
| 178 | self.movi_size -= 8; |
| 179 | if self.movi_size == 0 { |
| 180 | if !self.odml { |
| 181 | return Err(EOF); |
| 182 | } |
| 183 | self.try_next_odml_chunk()?; |
| 184 | } |
| 185 | continue; |
| 186 | } |
| 187 | let (tb_num, _) = stream.get_timebase(); |
| 188 | let mut ts = stream.make_ts(Some(self.cur_frame[stream_no as usize]), None, None); |
| 189 | if stream.get_media_type() == StreamType::Audio && tb_num == 1 && stream.get_info().get_name() == "pcm" { |
| 190 | ts.pts = None; |
| 191 | } |
| 192 | let mut pkt = self.src.read_packet(stream, ts, is_keyframe, size)?; |
| 193 | for pe in self.pal.iter_mut() { |
| 194 | if pe.stream_no == (stream_no as usize) { |
| 195 | pkt.add_side_data(NASideData::Palette(pe.changed, pe.pal.clone())); |
| 196 | pe.changed = false; |
| 197 | break; |
| 198 | } |
| 199 | } |
| 200 | self.cur_frame[stream_no as usize] += 1; |
| 201 | self.movi_size -= size + 8; |
| 202 | |
| 203 | return Ok(pkt); |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | fn seek(&mut self, time: NATimePoint, seek_index: &SeekIndex) -> DemuxerResult<()> { |
| 208 | let ret = seek_index.find_pos(time); |
| 209 | if ret.is_none() { |
| 210 | return Err(DemuxerError::SeekError); |
| 211 | } |
| 212 | let seek_info = ret.unwrap(); |
| 213 | |
| 214 | if self.odml && ((seek_info.pos < self.movi_pos) || (seek_info.pos > self.movi_pos + (self.movi_orig as u64))) { |
| 215 | let mut found = false; |
| 216 | for riff_seg in self.odml_riff.iter() { |
| 217 | if riff_seg.contains(seek_info.pos) { |
| 218 | found = true; |
| 219 | self.movi_pos = riff_seg.movi_pos; |
| 220 | self.movi_orig = riff_seg.movi_size; |
| 221 | self.movi_size = riff_seg.movi_size; |
| 222 | break; |
| 223 | } |
| 224 | } |
| 225 | if !found { |
| 226 | let riff_seg = self.odml_riff.last().unwrap(); |
| 227 | self.src.seek(SeekFrom::Start(riff_seg.get_end()))?; |
| 228 | loop { |
| 229 | let ret = self.try_next_odml_chunk(); |
| 230 | if ret.is_err() { |
| 231 | return Err(DemuxerError::SeekError); |
| 232 | } |
| 233 | let riff_seg = self.odml_riff.last().unwrap(); |
| 234 | if riff_seg.contains(seek_info.pos) { |
| 235 | self.movi_pos = riff_seg.movi_pos; |
| 236 | self.movi_orig = riff_seg.movi_size; |
| 237 | self.movi_size = riff_seg.movi_size; |
| 238 | break; |
| 239 | } |
| 240 | self.src.seek(SeekFrom::Start(riff_seg.get_end()))?; |
| 241 | } |
| 242 | } |
| 243 | } |
| 244 | if seek_info.pos < self.movi_pos { return Err(DemuxerError::SeekError); } |
| 245 | let skip_size = (seek_info.pos - self.movi_pos) as usize; |
| 246 | if skip_size > self.movi_orig { return Err(DemuxerError::SeekError); } |
| 247 | self.movi_size = self.movi_orig - skip_size; |
| 248 | |
| 249 | self.cur_frame[seek_info.str_id as usize] = seek_info.pts; |
| 250 | self.src.seek(SeekFrom::Start(seek_info.pos))?; |
| 251 | |
| 252 | Ok(()) |
| 253 | } |
| 254 | fn get_duration(&self) -> u64 { 0 } |
| 255 | } |
| 256 | |
| 257 | impl<'a> NAOptionHandler for AVIDemuxer<'a> { |
| 258 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 259 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 260 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 261 | } |
| 262 | |
| 263 | impl<'a> AVIDemuxer<'a> { |
| 264 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 265 | AVIDemuxer { |
| 266 | cur_frame: Vec::new(), |
| 267 | num_streams: 0, |
| 268 | src: io, |
| 269 | size: 0, |
| 270 | movi_size: 0, |
| 271 | movi_pos: 0, |
| 272 | movi_orig: 0, |
| 273 | sstate: StreamState::new(), |
| 274 | tb_num: 0, |
| 275 | tb_den: 0, |
| 276 | strm_duration: 0, |
| 277 | key_offs: Vec::new(), |
| 278 | pal: Vec::new(), |
| 279 | odml: false, |
| 280 | odml_idx: Vec::new(), |
| 281 | odml_riff: Vec::with_capacity(1), |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { |
| 286 | if csize < 8 { return Err(InvalidData); } |
| 287 | if depth > 42 { return Err(InvalidData); } |
| 288 | |
| 289 | let tag = self.src.read_u32be()?; |
| 290 | let size = self.src.read_u32le()? as usize; |
| 291 | if size > csize { return Err(InvalidData); } |
| 292 | if RIFFTag::Chunk(tag) == end_tag { |
| 293 | return Ok((size, true)); |
| 294 | } |
| 295 | let is_list = is_list_tag(tag); |
| 296 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; |
| 297 | if RIFFTag::List(tag, ltag) == end_tag { |
| 298 | return Ok((size, true)); |
| 299 | } |
| 300 | |
| 301 | for chunk in CHUNKS.iter() { |
| 302 | if RIFFTag::Chunk(tag) == chunk.tag { |
| 303 | let psize = (chunk.parse)(self, strmgr, size)?; |
| 304 | if psize != size { return Err(InvalidData); } |
| 305 | if (psize & 1) == 1 { self.src.read_skip(1)?; } |
| 306 | return Ok((size + 8, false)); |
| 307 | } |
| 308 | if RIFFTag::List(tag, ltag) == chunk.tag { |
| 309 | let mut rest_size = size - 4; |
| 310 | let psize = (chunk.parse)(self, strmgr, rest_size)?; |
| 311 | if psize > rest_size { return Err(InvalidData); } |
| 312 | rest_size -= psize; |
| 313 | while rest_size > 0 { |
| 314 | let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; |
| 315 | if psize > rest_size { return Err(InvalidData); } |
| 316 | rest_size -= psize; |
| 317 | if ((psize & 1) == 1) && (rest_size > 0) { |
| 318 | rest_size -= 1; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | return Ok((size + 8, false)); |
| 323 | } |
| 324 | } |
| 325 | if !is_list { |
| 326 | self.src.read_skip(size)?; |
| 327 | } else { |
| 328 | if size < 4 { return Err(InvalidData); } |
| 329 | self.src.read_skip(size - 4)?; |
| 330 | } |
| 331 | if (size & 1) == 1 { self.src.read_skip(1)?; } |
| 332 | Ok((size + 8, false)) |
| 333 | } |
| 334 | |
| 335 | fn read_header(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> { |
| 336 | let riff_tag = self.src.read_u32be()?; |
| 337 | let size = self.src.read_u32le()? as usize; |
| 338 | self.odml_riff.push(RIFFSegment { pos: self.src.tell() - 8, size: size + 8, movi_pos: 0, movi_size: 0}); |
| 339 | let avi_tag = self.src.read_u32be()?; |
| 340 | let mut matches = false; |
| 341 | for rt in RIFF_TAGS.iter() { |
| 342 | if rt[0] == riff_tag && rt[1] == avi_tag { |
| 343 | matches = true; |
| 344 | break; |
| 345 | } |
| 346 | } |
| 347 | if !matches { |
| 348 | return Err(InvalidData); |
| 349 | } |
| 350 | self.size = size; |
| 351 | let mut rest_size = size; |
| 352 | loop { |
| 353 | let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; |
| 354 | if end { |
| 355 | self.movi_size = csz - 4; |
| 356 | self.movi_orig = self.movi_size; |
| 357 | self.movi_pos = self.src.tell(); |
| 358 | |
| 359 | self.odml_riff[0].movi_pos = self.movi_pos; |
| 360 | self.odml_riff[0].movi_size = self.movi_size; |
| 361 | break; |
| 362 | } |
| 363 | rest_size -= csz; |
| 364 | } |
| 365 | if !seek_idx.skip_index { |
| 366 | if !self.odml { |
| 367 | self.src.read_skip(self.movi_size)?; |
| 368 | while rest_size > 0 { |
| 369 | let ret = self.parse_chunk(strmgr, RIFFTag::Chunk(mktag!(b"idx1")), rest_size,0); |
| 370 | if ret.is_err() { break; } |
| 371 | let (csz, end) = ret.unwrap(); |
| 372 | if end { |
| 373 | let _res = parse_idx1(self.src, strmgr, seek_idx, csz, self.movi_pos, &mut self.key_offs); |
| 374 | break; |
| 375 | } |
| 376 | rest_size -= csz; |
| 377 | } |
| 378 | } else { |
| 379 | let mut start = 0; |
| 380 | let mut last_strm_no = 255; |
| 381 | for &offset in self.odml_idx.iter() { |
| 382 | if self.src.seek(SeekFrom::Start(offset)).is_err() { |
| 383 | break; |
| 384 | } |
| 385 | let ret = self.src.read_tag(); |
| 386 | if ret.is_err() { break; } |
| 387 | let tag = ret.unwrap(); |
| 388 | let ret = self.src.read_u32le(); |
| 389 | if ret.is_err() { break; } |
| 390 | let size = ret.unwrap() as usize; |
| 391 | if &tag[..2] != b"ix" || tag[2] < b'0' || tag[2] > b'9' || tag[3] < b'0' || tag[3] > b'9'{ |
| 392 | break; |
| 393 | } |
| 394 | let stream_no = ((tag[2] - b'0') * 10 + (tag[3] - b'0')) as usize; |
| 395 | |
| 396 | if last_strm_no != stream_no { |
| 397 | start = 0; |
| 398 | last_strm_no = stream_no; |
| 399 | } |
| 400 | let ret = parse_odml_ix(self.src, strmgr, seek_idx, stream_no, size, start); |
| 401 | if let Ok(new_start) = ret { |
| 402 | start = new_start; |
| 403 | } else { |
| 404 | break; |
| 405 | } |
| 406 | } |
| 407 | } |
| 408 | } |
| 409 | if self.movi_pos != 0 { |
| 410 | self.src.seek(SeekFrom::Start(self.movi_pos))?; |
| 411 | } else { |
| 412 | return Err(InvalidData); |
| 413 | } |
| 414 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { |
| 415 | return Err(InvalidData); |
| 416 | } |
| 417 | Ok(()) |
| 418 | } |
| 419 | |
| 420 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { |
| 421 | if size == 0 { return Ok(None); } |
| 422 | let mut edvec: Vec<u8> = vec![0; size]; |
| 423 | self.src.read_buf(&mut edvec)?; |
| 424 | Ok(Some(edvec)) |
| 425 | } |
| 426 | |
| 427 | fn parse_palette_change(&mut self, stream_no: usize, size: usize) -> DemuxerResult<()> { |
| 428 | for pe in self.pal.iter_mut() { |
| 429 | if pe.stream_no == stream_no { |
| 430 | let start_clr = self.src.read_byte()? as usize; |
| 431 | let len = self.src.read_byte()? as usize; |
| 432 | let _flags = self.src.read_u16le()?; |
| 433 | validate!(start_clr + len <= 256); |
| 434 | validate!(len * 4 + 4 == size); |
| 435 | let mut newpal = *pe.pal; |
| 436 | for i in start_clr..(start_clr + len) { |
| 437 | newpal[i * 4] = self.src.read_byte()?; |
| 438 | newpal[i * 4 + 1] = self.src.read_byte()?; |
| 439 | newpal[i * 4 + 2] = self.src.read_byte()?; |
| 440 | newpal[i * 4 + 3] = 0; |
| 441 | self.src.read_byte()?; // flags |
| 442 | } |
| 443 | pe.pal = Arc::new(newpal); |
| 444 | pe.changed = true; |
| 445 | return Ok(()); |
| 446 | } |
| 447 | } |
| 448 | self.src.read_skip(size)?; |
| 449 | Ok(()) |
| 450 | } |
| 451 | fn try_next_odml_chunk(&mut self) -> DemuxerResult<()> { |
| 452 | let last_seg = self.odml_riff.last().unwrap(); |
| 453 | if self.src.tell() < last_seg.get_end() { |
| 454 | for riff_seg in self.odml_riff.iter() { |
| 455 | if riff_seg.pos >= self.src.tell() { |
| 456 | self.src.seek(SeekFrom::Start(riff_seg.movi_pos))?; |
| 457 | self.movi_pos = riff_seg.movi_pos; |
| 458 | self.movi_size = riff_seg.movi_size; |
| 459 | return Ok(()); |
| 460 | } |
| 461 | } |
| 462 | } |
| 463 | self.src.seek(SeekFrom::Start(last_seg.get_end()))?; |
| 464 | |
| 465 | let riff_pos = self.src.tell(); |
| 466 | let ret = self.src.read_tag(); |
| 467 | if let Ok([b'R', b'I', b'F', b'F']) = ret { |
| 468 | } else { |
| 469 | return Err(DemuxerError::EOF); |
| 470 | } |
| 471 | let riff_size = self.src.read_u32le()? as usize; |
| 472 | let tag = self.src.read_tag()?; |
| 473 | validate!(&tag == b"AVIX"); |
| 474 | let tag = self.src.read_tag()?; |
| 475 | validate!(&tag == b"LIST"); |
| 476 | let list_size = self.src.read_u32le()? as usize; |
| 477 | validate!(list_size >= 4); |
| 478 | let tag = self.src.read_tag()?; |
| 479 | validate!(&tag == b"movi"); |
| 480 | self.odml_riff.push(RIFFSegment{ pos: riff_pos, size: riff_size + 8, movi_pos: riff_pos + 24, movi_size: list_size - 4}); |
| 481 | self.movi_pos = riff_pos + 24; |
| 482 | self.movi_size = list_size - 4; |
| 483 | self.movi_orig = self.movi_size; |
| 484 | |
| 485 | Ok(()) |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | const RIFF_TAGS: &[[u32; 2]] = &[ |
| 490 | [ mktag!(b"RIFF"), mktag!(b"AVI ") ], |
| 491 | [ mktag!(b"RIFF"), mktag!(b"AVIX") ], |
| 492 | [ mktag!(b"ON2 "), mktag!(b"ON2f") ], |
| 493 | ]; |
| 494 | |
| 495 | const CHUNKS: &[RIFFParser] = &[ |
| 496 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, |
| 497 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, |
| 498 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, |
| 499 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"ON2h")), parse: parse_avih }, |
| 500 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, |
| 501 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, |
| 502 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"indx")), parse: parse_indx }, |
| 503 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, |
| 504 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"odml")), parse: parse_odml }, |
| 505 | ]; |
| 506 | |
| 507 | fn is_list_tag(tag: u32) -> bool { |
| 508 | for chunk in CHUNKS.iter() { |
| 509 | if let RIFFTag::List(ltag, _) = chunk.tag { |
| 510 | if tag == ltag { |
| 511 | return true; |
| 512 | } |
| 513 | } |
| 514 | } |
| 515 | false |
| 516 | } |
| 517 | |
| 518 | #[allow(unused_variables)] |
| 519 | fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 520 | Ok(0) |
| 521 | } |
| 522 | |
| 523 | #[allow(unused_variables)] |
| 524 | fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 525 | Ok(0) |
| 526 | } |
| 527 | |
| 528 | fn parse_odml(dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, _size: usize) -> DemuxerResult<usize> { |
| 529 | dmx.odml = true; |
| 530 | Ok(0) |
| 531 | } |
| 532 | |
| 533 | #[allow(unused_variables)] |
| 534 | fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 535 | if size < 0x38 { return Err(InvalidData); } |
| 536 | let tag = dmx.src.read_u32be()?; //stream type |
| 537 | let fcc = dmx.src.read_u32be()?; //handler(fourcc) |
| 538 | dmx.src.read_u32le()?; //flags |
| 539 | dmx.src.read_skip(2)?; //priority |
| 540 | dmx.src.read_skip(2)?; //language |
| 541 | dmx.src.read_skip(4)?; //initial frames |
| 542 | dmx.tb_num = dmx.src.read_u32le()?; //scale |
| 543 | dmx.tb_den = dmx.src.read_u32le()?; //rate |
| 544 | dmx.src.read_skip(4)?; //start |
| 545 | dmx.strm_duration = dmx.src.read_u32le()?; |
| 546 | dmx.src.read_skip(4)?; //buf size |
| 547 | dmx.src.read_skip(4)?; //quality |
| 548 | dmx.src.read_skip(4)?; //sample size |
| 549 | let a = dmx.src.read_u16le()?; |
| 550 | let b = dmx.src.read_u16le()?; |
| 551 | let c = dmx.src.read_u16le()?; |
| 552 | let d = dmx.src.read_u16le()?; |
| 553 | |
| 554 | dmx.src.read_skip(size - 0x38)?; |
| 555 | |
| 556 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { |
| 557 | return Err(InvalidData); |
| 558 | } |
| 559 | if tag == mktag!(b"vids") { |
| 560 | dmx.sstate.strm_type = Some(StreamType::Video); |
| 561 | } else if tag == mktag!(b"auds") { |
| 562 | dmx.sstate.strm_type = Some(StreamType::Audio); |
| 563 | } else { |
| 564 | dmx.sstate.strm_type = Some(StreamType::Data); |
| 565 | } |
| 566 | dmx.sstate.got_strf = false; |
| 567 | |
| 568 | Ok(size) |
| 569 | } |
| 570 | |
| 571 | fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 572 | if dmx.sstate.strm_type.is_none() { return Err(InvalidData); } |
| 573 | match dmx.sstate.strm_type.unwrap() { |
| 574 | StreamType::Video => parse_strf_vids(dmx, strmgr, size), |
| 575 | StreamType::Audio => parse_strf_auds(dmx, strmgr, size), |
| 576 | _ => parse_strf_xxxx(dmx, strmgr, size), |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | #[allow(unused_variables)] |
| 581 | fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 582 | if size < 40 { return Err(InvalidData); } |
| 583 | let bi_size = dmx.src.read_u32le()?; |
| 584 | if (bi_size as usize) < 40 { return Err(InvalidData); } |
| 585 | let width = dmx.src.read_u32le()?; |
| 586 | let height = dmx.src.read_u32le()? as i32; |
| 587 | let planes = dmx.src.read_u16le()?; |
| 588 | let bitcount = dmx.src.read_u16le()?; |
| 589 | let mut compression: [u8; 4] = [0; 4]; |
| 590 | dmx.src.read_buf(&mut compression)?; |
| 591 | let img_size = dmx.src.read_u32le()?; |
| 592 | let xdpi = dmx.src.read_u32le()?; |
| 593 | let ydpi = dmx.src.read_u32le()?; |
| 594 | let colors = dmx.src.read_u32le()?; |
| 595 | validate!(colors <= 256); |
| 596 | let imp_colors = dmx.src.read_u32le()?; |
| 597 | |
| 598 | let flip = height < 0; |
| 599 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; |
| 600 | let mut vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, format); |
| 601 | vhdr.bits = (planes as u8) * (bitcount as u8); |
| 602 | let cname = if find_raw_rgb_fmt(&compression, planes, bitcount, flip, &mut vhdr) { |
| 603 | "rawvideo-ms" |
| 604 | } else if find_raw_yuv_fmt(&compression, &mut vhdr) { |
| 605 | "rawvideo" |
| 606 | } else { |
| 607 | match register::find_codec_from_avi_fourcc(&compression) { |
| 608 | None => "unknown", |
| 609 | Some(name) => name, |
| 610 | } |
| 611 | }; |
| 612 | let vci = NACodecTypeInfo::Video(vhdr); |
| 613 | let edata = dmx.read_extradata(size - 40)?; |
| 614 | if colors > 0 { |
| 615 | if let Some(ref buf) = edata { |
| 616 | let mut pal = [0u8; 1024]; |
| 617 | for (dpal, spal) in pal.chunks_mut(4).take(colors as usize).zip(buf.chunks(4)) { |
| 618 | dpal[0] = spal[2]; |
| 619 | dpal[1] = spal[1]; |
| 620 | dpal[2] = spal[0]; |
| 621 | dpal[3] = 0; |
| 622 | } |
| 623 | let pal = PalInfo { pal: Arc::new(pal), changed: true, stream_no: strmgr.get_num_streams() }; |
| 624 | dmx.pal.push(pal); |
| 625 | } |
| 626 | } |
| 627 | let vinfo = NACodecInfo::new(cname, vci, edata); |
| 628 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, u32::from(dmx.sstate.strm_no), vinfo, dmx.tb_num, dmx.tb_den, u64::from(dmx.strm_duration))); |
| 629 | if res.is_none() { return Err(MemoryError); } |
| 630 | dmx.sstate.reset(); |
| 631 | Ok(size) |
| 632 | } |
| 633 | |
| 634 | fn find_raw_rgb_fmt(compr: &[u8; 4], planes: u16, bitcount: u16, flip: bool, vhdr: &mut NAVideoInfo) -> bool { |
| 635 | match compr { |
| 636 | &[0, 0, 0, 0] | b"DIB " => { |
| 637 | if planes != 1 { |
| 638 | return false; |
| 639 | } |
| 640 | let fmt_name = match bitcount { |
| 641 | 8 => "pal8", |
| 642 | 16 => "bgr555", |
| 643 | 24 => "bgr24", |
| 644 | 32 => "bgra24", |
| 645 | _ => return false, |
| 646 | }; |
| 647 | if let Ok(fmt) = NAPixelFormaton::from_str(fmt_name) { |
| 648 | vhdr.format = fmt; |
| 649 | vhdr.flipped = !flip; |
| 650 | true |
| 651 | } else { |
| 652 | false |
| 653 | } |
| 654 | }, |
| 655 | _ => false, |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | fn find_raw_yuv_fmt(compr: &[u8; 4], vhdr: &mut NAVideoInfo) -> bool { |
| 660 | let (fmt_name, swapuv) = match compr { |
| 661 | b"UYVY" | b"UYNY" | b"UYNV" | b"2vuy" => ("uyvy", false), |
| 662 | b"I420" | b"IYUV" => ("yuv420p", false), |
| 663 | b"YV12" => ("yuv420p", true), |
| 664 | b"YVU9" => ("yuv410p", true), |
| 665 | _ => return false, |
| 666 | }; |
| 667 | if let Ok(fmt) = NAPixelFormaton::from_str(fmt_name) { |
| 668 | vhdr.format = fmt; |
| 669 | if swapuv { |
| 670 | vhdr.format.comp_info.swap(1, 2); |
| 671 | } |
| 672 | true |
| 673 | } else { |
| 674 | false |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | #[allow(unused_variables)] |
| 679 | fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 680 | if size < 16 { return Err(InvalidData); } |
| 681 | let w_format_tag = dmx.src.read_u16le()?; |
| 682 | let channels = dmx.src.read_u16le()?; |
| 683 | let samplespersec = dmx.src.read_u32le()?; |
| 684 | let avgbytespersec = dmx.src.read_u32le()?; |
| 685 | let block_align = dmx.src.read_u16le()?; |
| 686 | let bits_per_sample = dmx.src.read_u16le()?; |
| 687 | |
| 688 | let signed = bits_per_sample > 8; |
| 689 | let soniton = NASoniton::new(bits_per_sample as u8, if signed { SONITON_FLAG_SIGNED } else { 0 }); |
| 690 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); |
| 691 | let edata = if size > 16 { |
| 692 | let edata_size = dmx.src.read_u16le()? as usize; |
| 693 | validate!(edata_size + 18 <= size); |
| 694 | dmx.read_extradata(size - 18)? |
| 695 | } else { |
| 696 | None |
| 697 | }; |
| 698 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { |
| 699 | None => "unknown", |
| 700 | Some(name) => name, |
| 701 | }; |
| 702 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); |
| 703 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, u32::from(dmx.sstate.strm_no), ainfo, dmx.tb_num, dmx.tb_den, u64::from(dmx.strm_duration))); |
| 704 | if res.is_none() { return Err(MemoryError); } |
| 705 | dmx.sstate.reset(); |
| 706 | Ok(size) |
| 707 | } |
| 708 | |
| 709 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 710 | let edata = dmx.read_extradata(size)?; |
| 711 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); |
| 712 | let res = strmgr.add_stream(NAStream::new(StreamType::Data, u32::from(dmx.sstate.strm_no), info, dmx.tb_num, dmx.tb_den, u64::from(dmx.strm_duration))); |
| 713 | if res.is_none() { return Err(MemoryError); } |
| 714 | dmx.sstate.reset(); |
| 715 | Ok(size) |
| 716 | } |
| 717 | |
| 718 | #[allow(unused_variables)] |
| 719 | fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 720 | if size < 0x38 { return Err(InvalidData); } |
| 721 | let timebase = dmx.src.read_u32le()?; //microsec per frame |
| 722 | dmx.src.read_skip(4)?; //max frame size |
| 723 | dmx.src.read_skip(4)?; //padding |
| 724 | dmx.src.read_u32le()?; //flags |
| 725 | let frames = dmx.src.read_u32le()?; //frames |
| 726 | dmx.src.read_skip(4)?; //initial frames |
| 727 | let streams = dmx.src.read_u32le()?; //streams |
| 728 | if streams > 100 { return Err(InvalidData); } |
| 729 | dmx.num_streams = streams as u8; |
| 730 | |
| 731 | dmx.src.read_skip(4)?; //buf size |
| 732 | let width = dmx.src.read_u32le()?; //width |
| 733 | let height = dmx.src.read_u32le()? as i32; //height |
| 734 | dmx.src.read_skip(16)?; //reserved |
| 735 | |
| 736 | dmx.cur_frame.resize(streams as usize, 0); |
| 737 | dmx.src.read_skip(size - 0x38)?; |
| 738 | Ok(size) |
| 739 | } |
| 740 | |
| 741 | fn parse_indx(dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 742 | dmx.odml = true; |
| 743 | validate!(size >= 24); |
| 744 | let entry_size = dmx.src.read_u16le()? as usize; |
| 745 | if entry_size != 4 { |
| 746 | dmx.src.read_skip(size - 2)?; |
| 747 | return Ok(size); |
| 748 | } |
| 749 | let sub_type = dmx.src.read_byte()?; |
| 750 | let idx_type = dmx.src.read_byte()?; |
| 751 | validate!(sub_type == 0 && idx_type == 0); |
| 752 | let entries = dmx.src.read_u32le()? as usize; |
| 753 | validate!(size >= 24 + entries * 4 * entry_size); |
| 754 | dmx.src.read_tag()?; //chunk id |
| 755 | dmx.src.read_skip(12)?; // reserved |
| 756 | for _ in 0..entries { |
| 757 | let offset = dmx.src.read_u64le()?; |
| 758 | let _idx_len = dmx.src.read_u32le()?; |
| 759 | let _nframes = dmx.src.read_u32le()?; |
| 760 | dmx.odml_idx.push(offset); |
| 761 | } |
| 762 | dmx.src.read_skip(size - 24 - entries * 4 * entry_size)?; |
| 763 | Ok(size) |
| 764 | } |
| 765 | |
| 766 | #[allow(unused_variables)] |
| 767 | fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 768 | dmx.src.read_skip(size)?; |
| 769 | Ok(size) |
| 770 | } |
| 771 | |
| 772 | #[allow(clippy::verbose_bit_mask)] |
| 773 | fn parse_idx1(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex, size: usize, movi_pos: u64, key_offs: &mut Vec<u64>) -> DemuxerResult<usize> { |
| 774 | validate!((size & 15) == 0); |
| 775 | let mut tag = [0u8; 4]; |
| 776 | let num_entries = size >> 4; |
| 777 | let mut counter = [0u64; 100]; |
| 778 | let mut add_offset = 0; |
| 779 | let mut set_offset = false; |
| 780 | for _ in 0..num_entries { |
| 781 | src.read_buf(&mut tag)?; |
| 782 | let flags = src.read_u32le()?; |
| 783 | let mut offset = src.read_u32le()? as u64; |
| 784 | let _length = src.read_u32le()?; |
| 785 | |
| 786 | if !set_offset && offset < movi_pos { |
| 787 | add_offset = movi_pos - offset; |
| 788 | } |
| 789 | set_offset = true; |
| 790 | |
| 791 | offset += add_offset; |
| 792 | |
| 793 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
| 794 | continue; |
| 795 | } |
| 796 | let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize; |
| 797 | |
| 798 | if (flags & 0x10) != 0 { |
| 799 | if let Some(str) = strmgr.get_stream(stream_no) { |
| 800 | if str.get_media_type() == StreamType::Video { |
| 801 | let (tb_num, tb_den) = str.get_timebase(); |
| 802 | let pts = counter[stream_no]; |
| 803 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); |
| 804 | validate!(offset >= movi_pos); |
| 805 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: offset }); |
| 806 | } |
| 807 | key_offs.push(offset); |
| 808 | } |
| 809 | } |
| 810 | counter[stream_no] += 1; |
| 811 | } |
| 812 | key_offs.sort_unstable(); |
| 813 | Ok(size) |
| 814 | } |
| 815 | |
| 816 | fn parse_odml_ix(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex, stream_no: usize, size: usize, start: u64) -> DemuxerResult<u64> { |
| 817 | validate!(size >= 24); |
| 818 | let entry_size = src.read_u16le()? as usize; |
| 819 | if entry_size != 2 { |
| 820 | return Err(DemuxerError::NotImplemented); |
| 821 | } |
| 822 | let sub_type = src.read_byte()?; |
| 823 | let idx_type = src.read_byte()?; |
| 824 | validate!(sub_type == 0 && idx_type == 1); |
| 825 | let entries = src.read_u32le()? as usize; |
| 826 | validate!(size >= 24 + entries * 4 * entry_size); |
| 827 | src.read_tag()?; //chunk id |
| 828 | let base_offset = src.read_u64le()?; |
| 829 | src.read_u32le()?; //reserved |
| 830 | if let Some(stream) = strmgr.get_stream(stream_no) { |
| 831 | if stream.get_media_type() == StreamType::Video { |
| 832 | let (tb_num, tb_den) = stream.get_timebase(); |
| 833 | |
| 834 | for i in 0..entries { |
| 835 | let offset = src.read_u32le()?; |
| 836 | validate!(offset >= 8); |
| 837 | let _size = src.read_u32le()?; |
| 838 | |
| 839 | let pts = start + (i as u64); |
| 840 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); |
| 841 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: base_offset + u64::from(offset - 8) }); |
| 842 | } |
| 843 | |
| 844 | Ok(start + (entries as u64)) |
| 845 | } else { |
| 846 | Ok(0) |
| 847 | } |
| 848 | } else { |
| 849 | Ok(0) |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | pub struct AVIDemuxerCreator { } |
| 854 | |
| 855 | impl DemuxerCreator for AVIDemuxerCreator { |
| 856 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
| 857 | Box::new(AVIDemuxer::new(br)) |
| 858 | } |
| 859 | fn get_name(&self) -> &'static str { "avi" } |
| 860 | } |
| 861 | |
| 862 | #[cfg(test)] |
| 863 | mod test { |
| 864 | use super::*; |
| 865 | use std::fs::File; |
| 866 | |
| 867 | #[test] |
| 868 | fn test_avi_demux() { |
| 869 | //test sample: https://samples.mplayerhq.hu/V-codecs/RT21/320x240/laser05.avi |
| 870 | let mut file = File::open("assets/Indeo/laser05.avi").unwrap(); |
| 871 | let mut fr = FileReader::new_read(&mut file); |
| 872 | let mut br = ByteReader::new(&mut fr); |
| 873 | let mut dmx = AVIDemuxer::new(&mut br); |
| 874 | let mut sm = StreamManager::new(); |
| 875 | let mut si = SeekIndex::new(); |
| 876 | dmx.open(&mut sm, &mut si).unwrap(); |
| 877 | |
| 878 | loop { |
| 879 | let pktres = dmx.get_frame(&mut sm); |
| 880 | if let Err(e) = pktres { |
| 881 | if e == DemuxerError::EOF { break; } |
| 882 | panic!("error"); |
| 883 | } |
| 884 | let pkt = pktres.unwrap(); |
| 885 | println!("Got {}", pkt); |
| 886 | } |
| 887 | } |
| 888 | } |