| 1 | use nihav_core::demuxers::*; |
| 2 | use nihav_registry::register::*; |
| 3 | use nihav_core::compr::deflate::*; |
| 4 | |
| 5 | macro_rules! mktag { |
| 6 | ($a:expr, $b:expr, $c:expr, $d:expr) => ({ |
| 7 | (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32) |
| 8 | }); |
| 9 | ($arr:expr) => ({ |
| 10 | (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32) |
| 11 | }); |
| 12 | } |
| 13 | |
| 14 | trait Skip64 { |
| 15 | fn skip64(&mut self, size: u64) -> ByteIOResult<()>; |
| 16 | } |
| 17 | |
| 18 | impl<'a> Skip64 for ByteReader<'a> { |
| 19 | fn skip64(&mut self, size: u64) -> ByteIOResult<()> { |
| 20 | if (size as usize as u64) != size { |
| 21 | self.seek(SeekFrom::Current(size as i64))?; |
| 22 | } else { |
| 23 | self.read_skip(size as usize)?; |
| 24 | } |
| 25 | Ok(()) |
| 26 | } |
| 27 | } |
| 28 | |
| 29 | fn read_chunk_header(br: &mut ByteReader) -> DemuxerResult<(u32, u64)> { |
| 30 | let size = br.read_u32be()?; |
| 31 | let ctype = br.read_u32be()?; |
| 32 | if size == 0 { |
| 33 | Ok((ctype, br.left() as u64)) |
| 34 | } else if size == 1 { |
| 35 | let size64 = br.read_u64be()?; |
| 36 | validate!(size64 >= 16); |
| 37 | Ok((ctype, size64 - 16)) |
| 38 | } else { |
| 39 | validate!(size >= 8); |
| 40 | Ok((ctype, (size as u64) - 8)) |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | fn read_palette(br: &mut ByteReader, size: u64, pal: &mut [u8; 1024]) -> DemuxerResult<u64> { |
| 45 | let _seed = br.read_u32be()?; |
| 46 | let _flags = br.read_u16be()?; |
| 47 | let palsize = (br.read_u16be()? as usize) + 1; |
| 48 | validate!(palsize <= 256); |
| 49 | validate!((palsize as u64) * 8 + 8 == size); |
| 50 | for i in 0..palsize { |
| 51 | let a = br.read_u16be()?; |
| 52 | let r = br.read_u16be()?; |
| 53 | let g = br.read_u16be()?; |
| 54 | let b = br.read_u16be()?; |
| 55 | pal[i * 4] = (r >> 8) as u8; |
| 56 | pal[i * 4 + 1] = (g >> 8) as u8; |
| 57 | pal[i * 4 + 2] = (b >> 8) as u8; |
| 58 | pal[i * 4 + 3] = (a >> 8) as u8; |
| 59 | } |
| 60 | Ok(size) |
| 61 | } |
| 62 | |
| 63 | struct RootChunkHandler { |
| 64 | ctype: u32, |
| 65 | parse: fn(dmx: &mut MOVDemuxer, strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64>, |
| 66 | } |
| 67 | |
| 68 | struct TrackChunkHandler { |
| 69 | ctype: u32, |
| 70 | parse: fn(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64>, |
| 71 | } |
| 72 | |
| 73 | const IGNORED_CHUNKS: &[u32] = &[ |
| 74 | mktag!(b"free"), mktag!(b"skip"), mktag!(b"udta"), mktag!(b"wide") |
| 75 | ]; |
| 76 | |
| 77 | const ROOT_CHUNK_HANDLERS: &[RootChunkHandler] = &[ |
| 78 | RootChunkHandler { ctype: mktag!(b"ftyp"), parse: read_ftyp }, |
| 79 | RootChunkHandler { ctype: mktag!(b"mdat"), parse: read_mdat }, |
| 80 | RootChunkHandler { ctype: mktag!(b"moov"), parse: read_moov }, |
| 81 | ]; |
| 82 | |
| 83 | macro_rules! read_chunk_list { |
| 84 | (root; $name: expr, $fname: ident, $handlers: ident) => { |
| 85 | fn $fname(&mut self, strmgr: &mut StreamManager, size: u64) -> DemuxerResult<()> { |
| 86 | self.depth += 1; |
| 87 | validate!(self.depth < 32); |
| 88 | let list_end = self.src.tell() + size; |
| 89 | while self.src.tell() < list_end { |
| 90 | let ret = read_chunk_header(&mut self.src); |
| 91 | if ret.is_err() { break; } |
| 92 | let (ctype, size) = ret.unwrap(); |
| 93 | if self.src.tell() + size > list_end { |
| 94 | break; |
| 95 | } |
| 96 | if IGNORED_CHUNKS.contains(&ctype) { |
| 97 | self.src.skip64(size)?; |
| 98 | continue; |
| 99 | } |
| 100 | let handler = $handlers.iter().find(|x| x.ctype == ctype); |
| 101 | let read_size; |
| 102 | if let Some(ref handler) = handler { |
| 103 | read_size = (handler.parse)(self, strmgr, size)?; |
| 104 | } else { |
| 105 | println!("skipping unknown chunk {:08X} size {}", ctype, size); |
| 106 | read_size = 0; |
| 107 | } |
| 108 | validate!(read_size <= size); |
| 109 | self.src.skip64(size - read_size)?; |
| 110 | } |
| 111 | self.depth -= 1; |
| 112 | validate!(self.src.tell() == list_end); |
| 113 | Ok(()) |
| 114 | } |
| 115 | }; |
| 116 | (track; $name: expr, $fname: ident, $handlers: ident) => { |
| 117 | fn $fname(&mut self, br: &mut ByteReader, size: u64) -> DemuxerResult<()> { |
| 118 | self.depth += 1; |
| 119 | validate!(self.depth < 32); |
| 120 | let list_end = br.tell() + size; |
| 121 | while br.tell() < list_end { |
| 122 | let ret = read_chunk_header(br); |
| 123 | if ret.is_err() { break; } |
| 124 | let (ctype, size) = ret.unwrap(); |
| 125 | if br.tell() + size > list_end { |
| 126 | break; |
| 127 | } |
| 128 | if IGNORED_CHUNKS.contains(&ctype) { |
| 129 | br.skip64(size)?; |
| 130 | continue; |
| 131 | } |
| 132 | let handler = $handlers.iter().find(|x| x.ctype == ctype); |
| 133 | let read_size; |
| 134 | if let Some(ref handler) = handler { |
| 135 | read_size = (handler.parse)(self, br, size)?; |
| 136 | } else { |
| 137 | read_size = 0; |
| 138 | } |
| 139 | validate!(read_size <= size); |
| 140 | br.skip64(size - read_size)?; |
| 141 | } |
| 142 | self.depth -= 1; |
| 143 | validate!(br.tell() == list_end); |
| 144 | Ok(()) |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | fn skip_chunk(_track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 150 | br.skip64(size)?; |
| 151 | Ok(size) |
| 152 | } |
| 153 | |
| 154 | fn read_ftyp(dmx: &mut MOVDemuxer, _strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64> { |
| 155 | dmx.src.skip64(size)?; |
| 156 | Ok(size) |
| 157 | } |
| 158 | |
| 159 | fn read_mdat(dmx: &mut MOVDemuxer, _strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64> { |
| 160 | dmx.mdat_pos = dmx.src.tell(); |
| 161 | dmx.mdat_size = size; |
| 162 | dmx.src.skip64(size)?; |
| 163 | Ok(size) |
| 164 | } |
| 165 | |
| 166 | fn read_moov(dmx: &mut MOVDemuxer, strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64> { |
| 167 | dmx.read_moov(strmgr, size)?; |
| 168 | Ok(size) |
| 169 | } |
| 170 | |
| 171 | const MOOV_CHUNK_HANDLERS: &[RootChunkHandler] = &[ |
| 172 | RootChunkHandler { ctype: mktag!(b"mvhd"), parse: read_mvhd }, |
| 173 | RootChunkHandler { ctype: mktag!(b"cmov"), parse: read_cmov }, |
| 174 | RootChunkHandler { ctype: mktag!(b"ctab"), parse: read_ctab }, |
| 175 | RootChunkHandler { ctype: mktag!(b"trak"), parse: read_trak }, |
| 176 | RootChunkHandler { ctype: mktag!(b"meta"), parse: read_meta }, |
| 177 | ]; |
| 178 | |
| 179 | fn read_mvhd(dmx: &mut MOVDemuxer, _strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64> { |
| 180 | const KNOWN_MVHD_SIZE: u64 = 100; |
| 181 | let br = &mut dmx.src; |
| 182 | validate!(size >= KNOWN_MVHD_SIZE); |
| 183 | let version = br.read_byte()?; |
| 184 | validate!(version == 0); |
| 185 | let _flags = br.read_u24be()?; |
| 186 | let _ctime = br.read_u32be()?; |
| 187 | let _mtime = br.read_u32be()?; |
| 188 | let tscale = br.read_u32be()?; |
| 189 | let duration = br.read_u32be()?; |
| 190 | let _pref_rate = br.read_u32be()?; |
| 191 | let _pref_volume = br.read_u16be()?; |
| 192 | br.read_skip(10)?; |
| 193 | br.read_skip(36)?; // matrix |
| 194 | let _preview_time = br.read_u32be()?; |
| 195 | let _preview_duration = br.read_u32be()?; |
| 196 | let _poster_time = br.read_u32be()?; |
| 197 | let _sel_time = br.read_u32be()?; |
| 198 | let _sel_duration = br.read_u32be()?; |
| 199 | let _cur_time = br.read_u32be()?; |
| 200 | let _next_track_id = br.read_u32be()?; |
| 201 | dmx.duration = duration; |
| 202 | dmx.tb_den = tscale; |
| 203 | |
| 204 | Ok(KNOWN_MVHD_SIZE) |
| 205 | } |
| 206 | |
| 207 | fn read_cmov(dmx: &mut MOVDemuxer, strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64> { |
| 208 | let br = &mut dmx.src; |
| 209 | validate!(size > 24); |
| 210 | let dcom_size = br.read_u32be()?; |
| 211 | let dcom_tag = br.read_tag()?; |
| 212 | let compr_type = br.read_tag()?; |
| 213 | validate!(&dcom_tag == b"dcom" && dcom_size == 12); |
| 214 | if &compr_type != b"zlib" { |
| 215 | return Err(DemuxerError::NotImplemented); |
| 216 | } |
| 217 | let cmvd_size = u64::from(br.read_u32be()?); |
| 218 | let cmvd_tag = br.read_tag()?; |
| 219 | validate!(&cmvd_tag == b"cmvd" && cmvd_size > 14 && cmvd_size == size - 12); |
| 220 | let comp_size = (cmvd_size - 12) as usize; |
| 221 | let uncomp_size = br.read_u32be()? as usize; |
| 222 | validate!(uncomp_size > 8); |
| 223 | let mut sbuf = vec![0; comp_size]; |
| 224 | let mut dbuf = vec![0; uncomp_size]; |
| 225 | br.read_buf(sbuf.as_mut_slice())?; |
| 226 | let ret = Inflate::uncompress(sbuf.as_slice(), dbuf.as_mut_slice()); |
| 227 | if ret.is_err() { |
| 228 | return Err(DemuxerError::InvalidData); |
| 229 | } |
| 230 | let len = ret.unwrap(); |
| 231 | validate!(len == uncomp_size); |
| 232 | let mut mr = MemoryReader::new_read(dbuf.as_slice()); |
| 233 | let mut br = ByteReader::new(&mut mr); |
| 234 | let (ctype, csize) = read_chunk_header(&mut br)?; |
| 235 | validate!(ctype == mktag!(b"moov")); |
| 236 | let mut ddmx = MOVDemuxer::new(&mut br); |
| 237 | ddmx.read_moov(strmgr, csize)?; |
| 238 | std::mem::swap(&mut dmx.tracks, &mut ddmx.tracks); |
| 239 | dmx.duration = ddmx.duration; |
| 240 | dmx.tb_den = ddmx.tb_den; |
| 241 | std::mem::swap(&mut dmx.pal, &mut ddmx.pal); |
| 242 | |
| 243 | Ok(size) |
| 244 | } |
| 245 | |
| 246 | fn read_ctab(dmx: &mut MOVDemuxer, _strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64> { |
| 247 | let mut pal = [0; 1024]; |
| 248 | let size = read_palette(&mut dmx.src, size, &mut pal)?; |
| 249 | dmx.pal = Some(Arc::new(pal)); |
| 250 | Ok(size) |
| 251 | } |
| 252 | |
| 253 | fn read_meta(dmx: &mut MOVDemuxer, _strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64> { |
| 254 | dmx.src.skip64(size)?; |
| 255 | Ok(size) |
| 256 | } |
| 257 | |
| 258 | fn read_trak(dmx: &mut MOVDemuxer, strmgr: &mut StreamManager, size: u64) -> DemuxerResult<u64> { |
| 259 | let mut track = Track::new(dmx.cur_track as u32, dmx.tb_den); |
| 260 | track.read_trak(&mut dmx.src, size)?; |
| 261 | validate!(track.tkhd_found && track.stsd_found); |
| 262 | validate!(strmgr.get_stream_by_id(track.track_id).is_none()); |
| 263 | dmx.cur_track += 1; |
| 264 | let mut str = None; |
| 265 | std::mem::swap(&mut track.stream, &mut str); |
| 266 | if let Some(stream) = str { |
| 267 | let str_id = strmgr.add_stream(stream).unwrap(); |
| 268 | track.track_str_id = str_id; |
| 269 | } |
| 270 | dmx.tracks.push(track); |
| 271 | Ok(size) |
| 272 | } |
| 273 | |
| 274 | const TRAK_CHUNK_HANDLERS: &[TrackChunkHandler] = &[ |
| 275 | TrackChunkHandler { ctype: mktag!(b"clip"), parse: skip_chunk }, |
| 276 | TrackChunkHandler { ctype: mktag!(b"matt"), parse: skip_chunk }, |
| 277 | TrackChunkHandler { ctype: mktag!(b"edts"), parse: skip_chunk }, |
| 278 | TrackChunkHandler { ctype: mktag!(b"tref"), parse: skip_chunk }, |
| 279 | TrackChunkHandler { ctype: mktag!(b"load"), parse: skip_chunk }, |
| 280 | TrackChunkHandler { ctype: mktag!(b"imap"), parse: skip_chunk }, |
| 281 | TrackChunkHandler { ctype: mktag!(b"tkhd"), parse: read_tkhd }, |
| 282 | TrackChunkHandler { ctype: mktag!(b"mdia"), parse: read_mdia }, |
| 283 | ]; |
| 284 | |
| 285 | fn read_tkhd(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 286 | const KNOWN_TKHD_SIZE: u64 = 84; |
| 287 | validate!(size >= KNOWN_TKHD_SIZE); |
| 288 | let version = br.read_byte()?; |
| 289 | validate!(version == 0); |
| 290 | let _flags = br.read_u24be()?; |
| 291 | let _ctime = br.read_u32be()?; |
| 292 | let _mtime = br.read_u32be()?; |
| 293 | let track_id = br.read_u32be()?; |
| 294 | br.read_skip(4)?; |
| 295 | let _duration = br.read_u32be()?; |
| 296 | br.read_skip(8)?; |
| 297 | let _layer = br.read_u16be()?; |
| 298 | let _alt_group = br.read_u16be()?; |
| 299 | let _volume = br.read_u16be()?; |
| 300 | br.read_skip(2)?; |
| 301 | br.read_skip(36)?; // matrix |
| 302 | let width = br.read_u32be()? as usize; |
| 303 | let height = br.read_u32be()? as usize; |
| 304 | track.width = width >> 16; |
| 305 | track.height = height >> 16; |
| 306 | track.track_id = track_id; |
| 307 | |
| 308 | track.tkhd_found = true; |
| 309 | Ok(KNOWN_TKHD_SIZE) |
| 310 | } |
| 311 | |
| 312 | fn read_mdia(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 313 | track.stream_type = StreamType::None; |
| 314 | track.read_mdia(br, size)?; |
| 315 | Ok(size) |
| 316 | } |
| 317 | |
| 318 | const MDIA_CHUNK_HANDLERS: &[TrackChunkHandler] = &[ |
| 319 | TrackChunkHandler { ctype: mktag!(b"mdhd"), parse: skip_chunk }, |
| 320 | TrackChunkHandler { ctype: mktag!(b"hdlr"), parse: read_hdlr }, |
| 321 | TrackChunkHandler { ctype: mktag!(b"minf"), parse: read_minf }, |
| 322 | ]; |
| 323 | |
| 324 | fn read_hdlr(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 325 | const KNOWN_HDLR_SIZE: u64 = 24; |
| 326 | validate!(size >= KNOWN_HDLR_SIZE); |
| 327 | let version = br.read_byte()?; |
| 328 | validate!(version == 0); |
| 329 | let flags = br.read_u24be()?; |
| 330 | validate!(flags == 0); |
| 331 | let comp_type = br.read_u32be()?; |
| 332 | let comp_subtype = br.read_u32be()?; |
| 333 | let _comp_manufacturer = br.read_u32be()?; |
| 334 | let _comp_flags = br.read_u32be()?; |
| 335 | let _comp_flags_mask = br.read_u32be()?; |
| 336 | |
| 337 | if comp_type == mktag!(b"mhlr") { |
| 338 | if comp_subtype == mktag!(b"vide") { |
| 339 | track.stream_type = StreamType::Video; |
| 340 | } else if comp_subtype == mktag!(b"soun") { |
| 341 | track.stream_type = StreamType::Audio; |
| 342 | } else { |
| 343 | track.stream_type = StreamType::Data; |
| 344 | } |
| 345 | } else if comp_type == mktag!(b"dhlr") { |
| 346 | track.stream_type = StreamType::Data; |
| 347 | } else { |
| 348 | println!("Unknown stream type"); |
| 349 | track.stream_type = StreamType::Data; |
| 350 | } |
| 351 | |
| 352 | Ok(KNOWN_HDLR_SIZE) |
| 353 | } |
| 354 | |
| 355 | fn read_minf(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 356 | track.read_minf(br, size)?; |
| 357 | Ok(size) |
| 358 | } |
| 359 | |
| 360 | const MINF_CHUNK_HANDLERS: &[TrackChunkHandler] = &[ |
| 361 | TrackChunkHandler { ctype: mktag!(b"hdlr"), parse: skip_chunk }, |
| 362 | TrackChunkHandler { ctype: mktag!(b"dinf"), parse: skip_chunk }, |
| 363 | TrackChunkHandler { ctype: mktag!(b"vmhd"), parse: read_vmhd }, |
| 364 | TrackChunkHandler { ctype: mktag!(b"smhd"), parse: read_smhd }, |
| 365 | TrackChunkHandler { ctype: mktag!(b"gmhd"), parse: read_gmhd }, |
| 366 | TrackChunkHandler { ctype: mktag!(b"gmin"), parse: read_gmin }, |
| 367 | TrackChunkHandler { ctype: mktag!(b"stbl"), parse: read_stbl }, |
| 368 | ]; |
| 369 | |
| 370 | fn read_vmhd(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 371 | const KNOWN_VMHD_SIZE: u64 = 12; |
| 372 | validate!(track.stream_type == StreamType::Video); |
| 373 | validate!(size >= KNOWN_VMHD_SIZE); |
| 374 | let version = br.read_byte()?; |
| 375 | validate!(version == 0); |
| 376 | let _flags = br.read_u24be()?; |
| 377 | br.read_skip(2)?; // graphics mode |
| 378 | br.read_skip(6)?; // opcolor |
| 379 | Ok(KNOWN_VMHD_SIZE) |
| 380 | } |
| 381 | |
| 382 | fn read_smhd(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 383 | const KNOWN_SMHD_SIZE: u64 = 8; |
| 384 | validate!(track.stream_type == StreamType::Audio); |
| 385 | validate!(size >= KNOWN_SMHD_SIZE); |
| 386 | let version = br.read_byte()?; |
| 387 | validate!(version == 0); |
| 388 | let _flags = br.read_u24be()?; |
| 389 | br.read_skip(2)?; // balance |
| 390 | br.read_skip(2)?; |
| 391 | Ok(KNOWN_SMHD_SIZE) |
| 392 | } |
| 393 | |
| 394 | fn read_gmhd(track: &mut Track, _br: &mut ByteReader, _size: u64) -> DemuxerResult<u64> { |
| 395 | validate!(track.stream_type == StreamType::Data); |
| 396 | Ok(0) |
| 397 | } |
| 398 | |
| 399 | fn read_gmin(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 400 | validate!(track.stream_type == StreamType::Data); |
| 401 | const KNOWN_GMIN_SIZE: u64 = 16; |
| 402 | validate!(size >= KNOWN_GMIN_SIZE); |
| 403 | let version = br.read_byte()?; |
| 404 | validate!(version == 0); |
| 405 | let _flags = br.read_u24be()?; |
| 406 | br.read_skip(2)?; // graphics mode |
| 407 | br.read_skip(6)?; // opcolor |
| 408 | br.read_skip(2)?; // balance |
| 409 | br.read_skip(2)?; |
| 410 | Ok(KNOWN_GMIN_SIZE) |
| 411 | } |
| 412 | |
| 413 | fn read_stbl(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 414 | track.read_stbl(br, size)?; |
| 415 | Ok(size) |
| 416 | } |
| 417 | |
| 418 | const STBL_CHUNK_HANDLERS: &[TrackChunkHandler] = &[ |
| 419 | TrackChunkHandler { ctype: mktag!(b"stsd"), parse: read_stsd }, |
| 420 | TrackChunkHandler { ctype: mktag!(b"stts"), parse: skip_chunk }, |
| 421 | TrackChunkHandler { ctype: mktag!(b"stss"), parse: read_stss }, |
| 422 | TrackChunkHandler { ctype: mktag!(b"stsc"), parse: read_stsc }, |
| 423 | TrackChunkHandler { ctype: mktag!(b"stsz"), parse: read_stsz }, |
| 424 | TrackChunkHandler { ctype: mktag!(b"stco"), parse: read_stco }, |
| 425 | TrackChunkHandler { ctype: mktag!(b"stsh"), parse: skip_chunk }, |
| 426 | ]; |
| 427 | |
| 428 | fn parse_audio_edata(br: &mut ByteReader, start_pos: u64, size: u64) -> DemuxerResult<Option<Vec<u8>>> { |
| 429 | let read_part = br.tell() - start_pos; |
| 430 | if read_part + 8 < size { |
| 431 | let csize = br.read_u32be()? as u64; |
| 432 | let ctag = br.read_u32be()?; |
| 433 | validate!(read_part + csize <= size); |
| 434 | validate!(ctag == mktag!(b"wave")); |
| 435 | if csize == 8 { |
| 436 | return Ok(None); |
| 437 | } |
| 438 | let mut buf = [0; 8]; |
| 439 | br.peek_buf(&mut buf)?; |
| 440 | if &buf[4..8] == b"frma" { |
| 441 | br.read_skip(12)?; |
| 442 | if csize > 20 { |
| 443 | let mut buf = vec![0; (csize - 20) as usize]; |
| 444 | br.read_buf(&mut buf)?; |
| 445 | Ok(Some(buf)) |
| 446 | } else { |
| 447 | Ok(None) |
| 448 | } |
| 449 | } else if csize > 8 { |
| 450 | let mut buf = vec![0; (csize as usize) - 8]; |
| 451 | br.read_buf(&mut buf)?; |
| 452 | Ok(Some(buf)) |
| 453 | } else { |
| 454 | Ok(None) |
| 455 | } |
| 456 | } else { |
| 457 | Ok(None) |
| 458 | } |
| 459 | } |
| 460 | |
| 461 | fn read_stsd(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 462 | const KNOWN_STSD_SIZE: u64 = 24; |
| 463 | validate!(size >= KNOWN_STSD_SIZE); |
| 464 | let start_pos = br.tell(); |
| 465 | let version = br.read_byte()?; |
| 466 | validate!(version == 0); |
| 467 | let _flags = br.read_u24be()?; |
| 468 | let entries = br.read_u32be()?; |
| 469 | validate!(entries > 0); |
| 470 | let esize = u64::from(br.read_u32be()?); |
| 471 | validate!(esize + 8 <= size); |
| 472 | let mut fcc = [0u8; 4]; |
| 473 | br.read_buf(&mut fcc)?; |
| 474 | br.read_skip(6)?; |
| 475 | let _data_ref = br.read_u16be()?; |
| 476 | |
| 477 | track.fcc = fcc; |
| 478 | |
| 479 | let codec_info; |
| 480 | match track.stream_type { |
| 481 | StreamType::Video => { |
| 482 | let _ver = br.read_u16be()?; |
| 483 | let _revision = br.read_u16le()?; |
| 484 | let _vendor = br.read_u32be()?; |
| 485 | let _temp_quality = br.read_u32be()?; |
| 486 | let _spat_quality = br.read_u32be()?; |
| 487 | let width = br.read_u16be()? as usize; |
| 488 | let height = br.read_u16be()? as usize; |
| 489 | let _hor_res = br.read_u32be()?; |
| 490 | let _vert_res = br.read_u32be()?; |
| 491 | let data_size = br.read_u32be()?; |
| 492 | validate!(data_size == 0); |
| 493 | let _frame_count = br.read_u16be()? as usize; |
| 494 | let _cname_len = br.read_byte()? as usize; |
| 495 | br.read_skip(31)?; // actual compressor name |
| 496 | let depth = br.read_u16be()?; |
| 497 | let ctable_id = br.read_u16be()?; |
| 498 | let grayscale = depth > 0x20 || depth == 1; |
| 499 | let depth = if grayscale { depth & 0x1F } else { depth }; |
| 500 | validate!(depth <= 8 || (ctable_id == 0xFFFF)); |
| 501 | if ctable_id == 0 { |
| 502 | let max_pal_size = start_pos + size - br.tell(); |
| 503 | let mut pal = [0; 1024]; |
| 504 | read_palette(br, max_pal_size, &mut pal)?; |
| 505 | track.pal = Some(Arc::new(pal)); |
| 506 | } else if (depth <= 8) && !grayscale { |
| 507 | match depth & 0x1F { |
| 508 | 2 => { |
| 509 | let mut pal = [0; 1024]; |
| 510 | (&mut pal[..4 * 4]).copy_from_slice(&MOV_DEFAULT_PAL_2BIT); |
| 511 | track.pal = Some(Arc::new(pal)); |
| 512 | }, |
| 513 | 4 => { |
| 514 | let mut pal = [0; 1024]; |
| 515 | (&mut pal[..16 * 4]).copy_from_slice(&MOV_DEFAULT_PAL_4BIT); |
| 516 | track.pal = Some(Arc::new(pal)); |
| 517 | }, |
| 518 | 8 => { |
| 519 | track.pal = Some(Arc::new(MOV_DEFAULT_PAL_8BIT)); |
| 520 | }, |
| 521 | _ => {}, |
| 522 | }; |
| 523 | } else if grayscale && ctable_id != 0xFFFF { |
| 524 | let mut pal = [0; 1024]; |
| 525 | let cdepth = depth & 0x1F; |
| 526 | let size = 1 << cdepth; |
| 527 | for i in 0..size { |
| 528 | let mut clr = ((size - 1 - i) as u8) << (8 - cdepth); |
| 529 | let mut off = 8 - cdepth; |
| 530 | while off >= cdepth { |
| 531 | clr |= clr >> (8 - off); |
| 532 | off -= cdepth; |
| 533 | } |
| 534 | if off > 0 { |
| 535 | clr |= clr >> (8 - off); |
| 536 | } |
| 537 | pal[i * 4] = clr; |
| 538 | pal[i * 4 + 1] = clr; |
| 539 | pal[i * 4 + 2] = clr; |
| 540 | } |
| 541 | track.pal = Some(Arc::new(pal)); |
| 542 | } |
| 543 | // todo other atoms, put as extradata |
| 544 | let cname = if let Some(name) = find_codec_from_mov_video_fourcc(&fcc) { |
| 545 | name |
| 546 | } else if let Some(name) = find_codec_from_avi_fourcc(&fcc) { |
| 547 | name |
| 548 | } else { |
| 549 | "unknown" |
| 550 | }; |
| 551 | let format = if depth > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; |
| 552 | let mut vhdr = NAVideoInfo::new(width, height, false, format); |
| 553 | vhdr.bits = depth as u8; |
| 554 | let edata = if br.tell() - start_pos + 4 < size { |
| 555 | //todo skip various common atoms |
| 556 | let edata_size = br.read_u32be()? as usize; |
| 557 | let mut buf = vec![0; edata_size]; |
| 558 | br.read_buf(buf.as_mut_slice())?; |
| 559 | Some(buf) |
| 560 | } else { |
| 561 | None |
| 562 | }; |
| 563 | codec_info = NACodecInfo::new(cname, NACodecTypeInfo::Video(vhdr), edata); |
| 564 | }, |
| 565 | StreamType::Audio => { |
| 566 | let sver = br.read_u16be()?; |
| 567 | let _revision = br.read_u16le()?; |
| 568 | let _vendor = br.read_u32be()?; |
| 569 | let nchannels = br.read_u16be()?; |
| 570 | validate!(nchannels <= 64); |
| 571 | let sample_size = br.read_u16be()?; |
| 572 | validate!(sample_size <= 128); |
| 573 | let _compr_id = br.read_u16be()?; |
| 574 | let packet_size = br.read_u16be()? as usize; |
| 575 | validate!(packet_size == 0); |
| 576 | let sample_rate = br.read_u32be()?; |
| 577 | validate!(sample_rate > 0); |
| 578 | let cname = if let Some(name) = find_codec_from_mov_audio_fourcc(&fcc) { |
| 579 | name |
| 580 | } else if let (true, Some(name)) = ((fcc[0] == b'm' && fcc[1] == b's'), find_codec_from_wav_twocc(u16::from(fcc[2]) * 256 + u16::from(fcc[3]))) { |
| 581 | name |
| 582 | } else { |
| 583 | "unknown" |
| 584 | }; |
| 585 | //todo adjust format for various PCM kinds |
| 586 | let soniton = NASoniton::new(sample_size as u8, SONITON_FLAG_SIGNED | SONITON_FLAG_BE); |
| 587 | let block_align = 1; |
| 588 | if sver == 1 { |
| 589 | let _samples_per_packet = br.read_u32be()?; |
| 590 | let _bytes_per_packet = br.read_u32be()?; |
| 591 | let bytes_per_frame = br.read_u32be()?; |
| 592 | let _bytes_per_sample = br.read_u32be()?; |
| 593 | track.bsize = bytes_per_frame as usize; |
| 594 | } else { |
| 595 | track.bsize = sample_size as usize; |
| 596 | } |
| 597 | let ahdr = NAAudioInfo::new(sample_rate >> 16, nchannels as u8, soniton, block_align); |
| 598 | let edata = parse_audio_edata(br, start_pos, size)?; |
| 599 | codec_info = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); |
| 600 | track.channels = nchannels as usize; |
| 601 | track.bits = sample_size as usize; |
| 602 | }, |
| 603 | StreamType::None => { |
| 604 | return Err(DemuxerError::InvalidData); |
| 605 | }, |
| 606 | _ => { |
| 607 | //todo put it all into extradata |
| 608 | let edata = None; |
| 609 | codec_info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); |
| 610 | }, |
| 611 | }; |
| 612 | let read_size = br.tell() - start_pos; |
| 613 | validate!(read_size <= size); |
| 614 | track.stream = Some(NAStream::new(track.stream_type, track.track_no, codec_info, 1, track.tb_den)); |
| 615 | track.stsd_found = true; |
| 616 | Ok(read_size) |
| 617 | } |
| 618 | |
| 619 | fn read_stss(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 620 | let version = br.read_byte()?; |
| 621 | validate!(version == 0); |
| 622 | let _flags = br.read_u24be()?; |
| 623 | let entries = br.read_u32be()? as usize; |
| 624 | validate!(entries < ((std::u32::MAX >> 2) - 8) as usize); |
| 625 | validate!((entries * 4 + 8) as u64 == size); |
| 626 | track.keyframes = Vec::with_capacity(entries); |
| 627 | let mut last_sample_no = 0; |
| 628 | for _ in 0..entries { |
| 629 | let sample_no = br.read_u32be()?; |
| 630 | validate!(sample_no > last_sample_no); |
| 631 | track.keyframes.push(sample_no); |
| 632 | last_sample_no = sample_no; |
| 633 | } |
| 634 | Ok(size) |
| 635 | } |
| 636 | |
| 637 | fn read_stsc(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 638 | let version = br.read_byte()?; |
| 639 | validate!(version == 0); |
| 640 | let _flags = br.read_u24be()?; |
| 641 | let entries = br.read_u32be()? as usize; |
| 642 | validate!(entries < ((std::u32::MAX / 12) - 8) as usize); |
| 643 | validate!((entries * 12 + 8) as u64 == size); |
| 644 | track.sample_map = Vec::with_capacity(entries); |
| 645 | let mut last_sample_no = 0; |
| 646 | for _i in 0..entries { |
| 647 | let sample_no = br.read_u32be()?; |
| 648 | validate!(sample_no > last_sample_no); |
| 649 | let nsamples = br.read_u32be()?; |
| 650 | let _sample_desc = br.read_u32be()?; |
| 651 | track.sample_map.push((sample_no, nsamples)); |
| 652 | last_sample_no = sample_no; |
| 653 | } |
| 654 | Ok(size) |
| 655 | } |
| 656 | |
| 657 | fn read_stsz(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 658 | let version = br.read_byte()?; |
| 659 | validate!(version == 0); |
| 660 | let _flags = br.read_u24be()?; |
| 661 | let sample_size = br.read_u32be()?; |
| 662 | if sample_size != 0 { |
| 663 | track.sample_size = sample_size; |
| 664 | if track.sample_size != 1 || track.bsize == 0 { |
| 665 | track.bsize = sample_size as usize; |
| 666 | } |
| 667 | Ok(8) |
| 668 | } else { |
| 669 | let entries = br.read_u32be()? as usize; |
| 670 | validate!((entries * 4 + 12) as u64 == size); |
| 671 | track.chunk_sizes = Vec::with_capacity(entries); |
| 672 | for _ in 0..entries { |
| 673 | let sample_size = br.read_u32be()?; |
| 674 | track.chunk_sizes.push(sample_size); |
| 675 | } |
| 676 | Ok(size) |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | fn read_stco(track: &mut Track, br: &mut ByteReader, size: u64) -> DemuxerResult<u64> { |
| 681 | let version = br.read_byte()?; |
| 682 | validate!(version == 0); |
| 683 | let _flags = br.read_u24be()?; |
| 684 | let entries = br.read_u32be()? as usize; |
| 685 | validate!((entries * 4 + 8) as u64 == size); |
| 686 | track.chunk_offsets = Vec::with_capacity(entries); |
| 687 | for _i in 0..entries { |
| 688 | let sample_offset = br.read_u32be()?; |
| 689 | track.chunk_offsets.push(u64::from(sample_offset)); |
| 690 | } |
| 691 | Ok(size) |
| 692 | } |
| 693 | |
| 694 | struct MOVDemuxer<'a> { |
| 695 | src: &'a mut ByteReader<'a>, |
| 696 | depth: usize, |
| 697 | mdat_pos: u64, |
| 698 | mdat_size: u64, |
| 699 | tracks: Vec<Track>, |
| 700 | cur_track: usize, |
| 701 | tb_den: u32, |
| 702 | duration: u32, |
| 703 | pal: Option<Arc<[u8; 1024]>>, |
| 704 | } |
| 705 | |
| 706 | struct Track { |
| 707 | track_id: u32, |
| 708 | track_str_id: usize, |
| 709 | track_no: u32, |
| 710 | tb_den: u32, |
| 711 | depth: u8, |
| 712 | tkhd_found: bool, |
| 713 | stsd_found: bool, |
| 714 | stream_type: StreamType, |
| 715 | width: usize, |
| 716 | height: usize, |
| 717 | channels: usize, |
| 718 | bits: usize, |
| 719 | bsize: usize, |
| 720 | fcc: [u8; 4], |
| 721 | keyframes: Vec<u32>, |
| 722 | chunk_sizes: Vec<u32>, |
| 723 | chunk_offsets: Vec<u64>, |
| 724 | sample_map: Vec<(u32, u32)>, |
| 725 | sample_size: u32, |
| 726 | stream: Option<NAStream>, |
| 727 | cur_chunk: usize, |
| 728 | cur_sample: usize, |
| 729 | samples_left: usize, |
| 730 | last_offset: u64, |
| 731 | pal: Option<Arc<[u8; 1024]>>, |
| 732 | } |
| 733 | |
| 734 | impl Track { |
| 735 | fn new(track_no: u32, tb_den: u32) -> Self { |
| 736 | Self { |
| 737 | tkhd_found: false, |
| 738 | stsd_found: false, |
| 739 | track_id: 0, |
| 740 | track_str_id: 0, |
| 741 | track_no, |
| 742 | tb_den, |
| 743 | stream_type: StreamType::None, |
| 744 | width: 0, |
| 745 | height: 0, |
| 746 | channels: 0, |
| 747 | bits: 0, |
| 748 | bsize: 0, |
| 749 | fcc: [0; 4], |
| 750 | keyframes: Vec::new(), |
| 751 | chunk_sizes: Vec::new(), |
| 752 | chunk_offsets: Vec::new(), |
| 753 | sample_map: Vec::new(), |
| 754 | sample_size: 0, |
| 755 | stream: None, |
| 756 | depth: 0, |
| 757 | cur_chunk: 0, |
| 758 | cur_sample: 0, |
| 759 | samples_left: 0, |
| 760 | last_offset: 0, |
| 761 | pal: None, |
| 762 | } |
| 763 | } |
| 764 | read_chunk_list!(track; "trak", read_trak, TRAK_CHUNK_HANDLERS); |
| 765 | read_chunk_list!(track; "mdia", read_mdia, MDIA_CHUNK_HANDLERS); |
| 766 | read_chunk_list!(track; "minf", read_minf, MINF_CHUNK_HANDLERS); |
| 767 | read_chunk_list!(track; "stbl", read_stbl, STBL_CHUNK_HANDLERS); |
| 768 | fn fill_seek_index(&self, seek_index: &mut SeekIndex) { |
| 769 | if !self.keyframes.is_empty() { |
| 770 | seek_index.mode = SeekIndexMode::Present; |
| 771 | } |
| 772 | for kf_time in self.keyframes.iter() { |
| 773 | let pts = u64::from(*kf_time - 1); |
| 774 | let time = NATimeInfo::ts_to_time(pts, 1000, 1, self.tb_den); |
| 775 | let idx = (*kf_time - 1) as usize; |
| 776 | if idx < self.chunk_offsets.len() { |
| 777 | let pos = self.chunk_offsets[idx]; |
| 778 | seek_index.add_entry(self.track_no as u32, SeekEntry { time, pts, pos }); |
| 779 | } |
| 780 | } |
| 781 | } |
| 782 | fn calculate_chunk_size(&self, nsamp: usize) -> usize { |
| 783 | if nsamp == 0 { |
| 784 | self.bsize |
| 785 | } else { |
| 786 | match &self.fcc { |
| 787 | b"NONE" | b"raw " | b"twos" | b"sowt" => { |
| 788 | (nsamp * self.bits * self.channels + 7) >> 3 |
| 789 | }, |
| 790 | b"ima4" => { |
| 791 | let nblocks = (nsamp + 63) >> 6; |
| 792 | nblocks * 34 * self.channels |
| 793 | }, |
| 794 | b"MAC3" => { |
| 795 | (nsamp + 5) / 6 * 2 * self.channels |
| 796 | }, |
| 797 | b"MAC6" => { |
| 798 | (nsamp + 5) / 6 * self.channels |
| 799 | }, |
| 800 | b"in24" => nsamp * 3 * self.channels, |
| 801 | b"in32" | b"fl32" => nsamp * 4 * self.channels, |
| 802 | b"fl64" => nsamp * 8 * self.channels, |
| 803 | b"ulaw" | b"alaw" => nsamp, |
| 804 | b"ms\x00\x02" => { //MS ADPCM |
| 805 | ((nsamp - 1) / 2 + 7) * self.channels |
| 806 | }, |
| 807 | b"ms\x00\x21" => { //IMA ADPCM |
| 808 | (nsamp / 2 + 4) * self.channels |
| 809 | }, |
| 810 | _ => self.bsize, |
| 811 | } |
| 812 | } |
| 813 | } |
| 814 | fn get_next_chunk(&mut self) -> Option<(NATimeInfo, u64, usize)> { |
| 815 | let pts = NATimeInfo::new(Some(self.cur_sample as u64), None, None, 1, self.tb_den); |
| 816 | //todo dts decoding |
| 817 | if self.chunk_offsets.len() == self.chunk_sizes.len() { // simple one-to-one mapping |
| 818 | if self.cur_sample >= self.chunk_sizes.len() { |
| 819 | return None; |
| 820 | } |
| 821 | let offset = self.chunk_offsets[self.cur_sample]; |
| 822 | let size = self.chunk_sizes[self.cur_sample] as usize; |
| 823 | self.cur_sample += 1; |
| 824 | Some((pts, offset, size)) |
| 825 | } else { |
| 826 | if self.samples_left == 0 { |
| 827 | if self.cur_chunk >= self.chunk_offsets.len() { |
| 828 | return None; |
| 829 | } |
| 830 | for (idx, samples) in self.sample_map.iter() { |
| 831 | if *idx as usize <= self.cur_chunk + 1 { |
| 832 | self.samples_left = *samples as usize; |
| 833 | } else { |
| 834 | break; |
| 835 | } |
| 836 | } |
| 837 | self.last_offset = self.chunk_offsets[self.cur_chunk]; |
| 838 | self.cur_chunk += 1; |
| 839 | } |
| 840 | let offset = self.last_offset; |
| 841 | let size = self.get_size(self.cur_sample); |
| 842 | self.last_offset += size as u64; |
| 843 | if self.stream_type == StreamType::Video { |
| 844 | self.samples_left -= 1; |
| 845 | } else { |
| 846 | self.samples_left = 0; |
| 847 | } |
| 848 | self.cur_sample += 1; |
| 849 | Some((pts, offset, size)) |
| 850 | } |
| 851 | } |
| 852 | fn get_size(&self, sample_no: usize) -> usize { |
| 853 | if !self.chunk_sizes.is_empty() { |
| 854 | self.chunk_sizes[sample_no] as usize |
| 855 | } else if !self.sample_map.is_empty() { |
| 856 | let mut nsamp = 0; |
| 857 | for (idx, samples) in self.sample_map.iter() { |
| 858 | if *idx as usize <= self.cur_chunk { |
| 859 | nsamp = *samples; |
| 860 | } else { |
| 861 | break; |
| 862 | } |
| 863 | } |
| 864 | self.calculate_chunk_size(nsamp as usize) |
| 865 | } else { |
| 866 | self.bsize |
| 867 | } |
| 868 | } |
| 869 | fn seek(&mut self, pts: u64) { |
| 870 | self.cur_sample = pts as usize; |
| 871 | self.samples_left = 0; |
| 872 | if self.stream_type == StreamType::Audio { |
| 873 | self.cur_chunk = self.cur_sample; |
| 874 | } else if self.chunk_offsets.len() != self.chunk_sizes.len() && !self.sample_map.is_empty() { |
| 875 | let mut csamp = 0; |
| 876 | self.cur_chunk = 0; |
| 877 | let mut cmap = self.sample_map.iter(); |
| 878 | let mut cur_samps = 0; |
| 879 | let (mut next_idx, mut next_samples) = cmap.next().unwrap(); |
| 880 | loop { |
| 881 | if self.cur_chunk == next_idx as usize { |
| 882 | self.samples_left = cur_samps; |
| 883 | cur_samps = next_samples as usize; |
| 884 | if let Some((new_idx, new_samples)) = cmap.next() { |
| 885 | next_idx = *new_idx; |
| 886 | next_samples = *new_samples; |
| 887 | } |
| 888 | } |
| 889 | csamp += cur_samps; |
| 890 | if csamp >= self.cur_sample { |
| 891 | self.last_offset = self.chunk_offsets[self.cur_chunk]; |
| 892 | break; |
| 893 | } |
| 894 | self.cur_chunk += 1; |
| 895 | } |
| 896 | csamp -= cur_samps; |
| 897 | for sample_no in csamp..self.cur_chunk { |
| 898 | self.last_offset += self.get_size(sample_no) as u64; |
| 899 | } |
| 900 | self.samples_left = self.cur_sample - csamp - cur_samps; |
| 901 | } |
| 902 | } |
| 903 | } |
| 904 | |
| 905 | impl<'a> DemuxCore<'a> for MOVDemuxer<'a> { |
| 906 | fn open(&mut self, strmgr: &mut StreamManager, seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
| 907 | self.read_root(strmgr)?; |
| 908 | validate!(self.mdat_pos > 0); |
| 909 | validate!(!self.tracks.is_empty()); |
| 910 | for track in self.tracks.iter() { |
| 911 | track.fill_seek_index(seek_index); |
| 912 | } |
| 913 | self.src.seek(SeekFrom::Start(self.mdat_pos))?; |
| 914 | self.cur_track = 0; |
| 915 | Ok(()) |
| 916 | } |
| 917 | |
| 918 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 919 | if self.tracks.is_empty() { |
| 920 | return Err(DemuxerError::EOF); |
| 921 | } |
| 922 | for _ in 0..self.tracks.len() { |
| 923 | if self.cur_track >= self.tracks.len() { |
| 924 | self.cur_track = 0; |
| 925 | } |
| 926 | let track = &mut self.tracks[self.cur_track]; |
| 927 | self.cur_track += 1; |
| 928 | let first = track.cur_sample == 0; |
| 929 | if let Some((pts, offset, size)) = track.get_next_chunk() { |
| 930 | let str = strmgr.get_stream(track.track_str_id); |
| 931 | if str.is_none() { return Err(DemuxerError::InvalidData); } |
| 932 | let stream = str.unwrap(); |
| 933 | self.src.seek(SeekFrom::Start(offset))?; |
| 934 | let mut pkt = self.src.read_packet(stream, pts, false, size)?; |
| 935 | if let Some(ref pal) = track.pal { |
| 936 | let side_data = NASideData::Palette(first, pal.clone()); |
| 937 | pkt.add_side_data(side_data); |
| 938 | } |
| 939 | return Ok(pkt); |
| 940 | } |
| 941 | } |
| 942 | Err(DemuxerError::EOF) |
| 943 | } |
| 944 | |
| 945 | fn seek(&mut self, time: u64, seek_index: &SeekIndex) -> DemuxerResult<()> { |
| 946 | let ret = seek_index.find_pos(time); |
| 947 | if ret.is_none() { |
| 948 | return Err(DemuxerError::SeekError); |
| 949 | } |
| 950 | let seek_info = ret.unwrap(); |
| 951 | for track in self.tracks.iter_mut() { |
| 952 | track.seek(seek_info.pts); |
| 953 | } |
| 954 | Ok(()) |
| 955 | } |
| 956 | } |
| 957 | |
| 958 | impl<'a> NAOptionHandler for MOVDemuxer<'a> { |
| 959 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 960 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 961 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 962 | } |
| 963 | |
| 964 | impl<'a> MOVDemuxer<'a> { |
| 965 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 966 | MOVDemuxer { |
| 967 | src: io, |
| 968 | depth: 0, |
| 969 | mdat_pos: 0, |
| 970 | mdat_size: 0, |
| 971 | tracks: Vec::with_capacity(2), |
| 972 | cur_track: 0, |
| 973 | tb_den: 0, |
| 974 | duration: 0, |
| 975 | pal: None, |
| 976 | } |
| 977 | } |
| 978 | fn read_root(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
| 979 | self.depth = 0; |
| 980 | while self.src.left() != 0 { |
| 981 | let ret = read_chunk_header(&mut self.src); |
| 982 | if ret.is_err() { break; } |
| 983 | let (ctype, size) = ret.unwrap(); |
| 984 | if IGNORED_CHUNKS.contains(&ctype) { |
| 985 | self.src.skip64(size)?; |
| 986 | continue; |
| 987 | } |
| 988 | let handler = ROOT_CHUNK_HANDLERS.iter().find(|x| x.ctype == ctype); |
| 989 | let read_size; |
| 990 | if let Some(ref handler) = handler { |
| 991 | read_size = (handler.parse)(self, strmgr, size)?; |
| 992 | } else { |
| 993 | println!("skipping unknown chunk {:08X} size {}", ctype, size); |
| 994 | read_size = 0; |
| 995 | } |
| 996 | validate!(read_size <= size); |
| 997 | self.src.skip64(size - read_size)?; |
| 998 | } |
| 999 | //todo check if all needed chunks are found |
| 1000 | Ok(()) |
| 1001 | } |
| 1002 | read_chunk_list!(root; "moov", read_moov, MOOV_CHUNK_HANDLERS); |
| 1003 | } |
| 1004 | |
| 1005 | pub struct MOVDemuxerCreator { } |
| 1006 | |
| 1007 | impl DemuxerCreator for MOVDemuxerCreator { |
| 1008 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
| 1009 | Box::new(MOVDemuxer::new(br)) |
| 1010 | } |
| 1011 | fn get_name(&self) -> &'static str { "mov" } |
| 1012 | } |
| 1013 | |
| 1014 | const MOV_DEFAULT_PAL_2BIT: [u8; 4 * 4] = [ |
| 1015 | 0x93, 0x65, 0x5E, 0x00, |
| 1016 | 0xFF, 0xFF, 0xFF, 0x00, |
| 1017 | 0xDF, 0xD0, 0xAB, 0x00, |
| 1018 | 0x00, 0x00, 0x00, 0x00 |
| 1019 | ]; |
| 1020 | const MOV_DEFAULT_PAL_4BIT: [u8; 16 * 4] = [ |
| 1021 | 0xFF, 0xFB, 0xFF, 0x00, |
| 1022 | 0xEF, 0xD9, 0xBB, 0x00, |
| 1023 | 0xE8, 0xC9, 0xB1, 0x00, |
| 1024 | 0x93, 0x65, 0x5E, 0x00, |
| 1025 | 0xFC, 0xDE, 0xE8, 0x00, |
| 1026 | 0x9D, 0x88, 0x91, 0x00, |
| 1027 | 0xFF, 0xFF, 0xFF, 0x00, |
| 1028 | 0xFF, 0xFF, 0xFF, 0x00, |
| 1029 | 0xFF, 0xFF, 0xFF, 0x00, |
| 1030 | 0x47, 0x48, 0x37, 0x00, |
| 1031 | 0x7A, 0x5E, 0x55, 0x00, |
| 1032 | 0xDF, 0xD0, 0xAB, 0x00, |
| 1033 | 0xFF, 0xFB, 0xF9, 0x00, |
| 1034 | 0xE8, 0xCA, 0xC5, 0x00, |
| 1035 | 0x8A, 0x7C, 0x77, 0x00, |
| 1036 | 0x00, 0x00, 0x00, 0x00 |
| 1037 | ]; |
| 1038 | const MOV_DEFAULT_PAL_8BIT: [u8; 256 * 4] = [ |
| 1039 | 0xFF, 0xFF, 0xFF, 0x00, |
| 1040 | 0xFF, 0xFF, 0xCC, 0x00, |
| 1041 | 0xFF, 0xFF, 0x99, 0x00, |
| 1042 | 0xFF, 0xFF, 0x66, 0x00, |
| 1043 | 0xFF, 0xFF, 0x33, 0x00, |
| 1044 | 0xFF, 0xFF, 0x00, 0x00, |
| 1045 | 0xFF, 0xCC, 0xFF, 0x00, |
| 1046 | 0xFF, 0xCC, 0xCC, 0x00, |
| 1047 | 0xFF, 0xCC, 0x99, 0x00, |
| 1048 | 0xFF, 0xCC, 0x66, 0x00, |
| 1049 | 0xFF, 0xCC, 0x33, 0x00, |
| 1050 | 0xFF, 0xCC, 0x00, 0x00, |
| 1051 | 0xFF, 0x99, 0xFF, 0x00, |
| 1052 | 0xFF, 0x99, 0xCC, 0x00, |
| 1053 | 0xFF, 0x99, 0x99, 0x00, |
| 1054 | 0xFF, 0x99, 0x66, 0x00, |
| 1055 | 0xFF, 0x99, 0x33, 0x00, |
| 1056 | 0xFF, 0x99, 0x00, 0x00, |
| 1057 | 0xFF, 0x66, 0xFF, 0x00, |
| 1058 | 0xFF, 0x66, 0xCC, 0x00, |
| 1059 | 0xFF, 0x66, 0x99, 0x00, |
| 1060 | 0xFF, 0x66, 0x66, 0x00, |
| 1061 | 0xFF, 0x66, 0x33, 0x00, |
| 1062 | 0xFF, 0x66, 0x00, 0x00, |
| 1063 | 0xFF, 0x33, 0xFF, 0x00, |
| 1064 | 0xFF, 0x33, 0xCC, 0x00, |
| 1065 | 0xFF, 0x33, 0x99, 0x00, |
| 1066 | 0xFF, 0x33, 0x66, 0x00, |
| 1067 | 0xFF, 0x33, 0x33, 0x00, |
| 1068 | 0xFF, 0x33, 0x00, 0x00, |
| 1069 | 0xFF, 0x00, 0xFF, 0x00, |
| 1070 | 0xFF, 0x00, 0xCC, 0x00, |
| 1071 | 0xFF, 0x00, 0x99, 0x00, |
| 1072 | 0xFF, 0x00, 0x66, 0x00, |
| 1073 | 0xFF, 0x00, 0x33, 0x00, |
| 1074 | 0xFF, 0x00, 0x00, 0x00, |
| 1075 | 0xCC, 0xFF, 0xFF, 0x00, |
| 1076 | 0xCC, 0xFF, 0xCC, 0x00, |
| 1077 | 0xCC, 0xFF, 0x99, 0x00, |
| 1078 | 0xCC, 0xFF, 0x66, 0x00, |
| 1079 | 0xCC, 0xFF, 0x33, 0x00, |
| 1080 | 0xCC, 0xFF, 0x00, 0x00, |
| 1081 | 0xCC, 0xCC, 0xFF, 0x00, |
| 1082 | 0xCC, 0xCC, 0xCC, 0x00, |
| 1083 | 0xCC, 0xCC, 0x99, 0x00, |
| 1084 | 0xCC, 0xCC, 0x66, 0x00, |
| 1085 | 0xCC, 0xCC, 0x33, 0x00, |
| 1086 | 0xCC, 0xCC, 0x00, 0x00, |
| 1087 | 0xCC, 0x99, 0xFF, 0x00, |
| 1088 | 0xCC, 0x99, 0xCC, 0x00, |
| 1089 | 0xCC, 0x99, 0x99, 0x00, |
| 1090 | 0xCC, 0x99, 0x66, 0x00, |
| 1091 | 0xCC, 0x99, 0x33, 0x00, |
| 1092 | 0xCC, 0x99, 0x00, 0x00, |
| 1093 | 0xCC, 0x66, 0xFF, 0x00, |
| 1094 | 0xCC, 0x66, 0xCC, 0x00, |
| 1095 | 0xCC, 0x66, 0x99, 0x00, |
| 1096 | 0xCC, 0x66, 0x66, 0x00, |
| 1097 | 0xCC, 0x66, 0x33, 0x00, |
| 1098 | 0xCC, 0x66, 0x00, 0x00, |
| 1099 | 0xCC, 0x33, 0xFF, 0x00, |
| 1100 | 0xCC, 0x33, 0xCC, 0x00, |
| 1101 | 0xCC, 0x33, 0x99, 0x00, |
| 1102 | 0xCC, 0x33, 0x66, 0x00, |
| 1103 | 0xCC, 0x33, 0x33, 0x00, |
| 1104 | 0xCC, 0x33, 0x00, 0x00, |
| 1105 | 0xCC, 0x00, 0xFF, 0x00, |
| 1106 | 0xCC, 0x00, 0xCC, 0x00, |
| 1107 | 0xCC, 0x00, 0x99, 0x00, |
| 1108 | 0xCC, 0x00, 0x66, 0x00, |
| 1109 | 0xCC, 0x00, 0x33, 0x00, |
| 1110 | 0xCC, 0x00, 0x00, 0x00, |
| 1111 | 0x99, 0xFF, 0xFF, 0x00, |
| 1112 | 0x99, 0xFF, 0xCC, 0x00, |
| 1113 | 0x99, 0xFF, 0x99, 0x00, |
| 1114 | 0x99, 0xFF, 0x66, 0x00, |
| 1115 | 0x99, 0xFF, 0x33, 0x00, |
| 1116 | 0x99, 0xFF, 0x00, 0x00, |
| 1117 | 0x99, 0xCC, 0xFF, 0x00, |
| 1118 | 0x99, 0xCC, 0xCC, 0x00, |
| 1119 | 0x99, 0xCC, 0x99, 0x00, |
| 1120 | 0x99, 0xCC, 0x66, 0x00, |
| 1121 | 0x99, 0xCC, 0x33, 0x00, |
| 1122 | 0x99, 0xCC, 0x00, 0x00, |
| 1123 | 0x99, 0x99, 0xFF, 0x00, |
| 1124 | 0x99, 0x99, 0xCC, 0x00, |
| 1125 | 0x99, 0x99, 0x99, 0x00, |
| 1126 | 0x99, 0x99, 0x66, 0x00, |
| 1127 | 0x99, 0x99, 0x33, 0x00, |
| 1128 | 0x99, 0x99, 0x00, 0x00, |
| 1129 | 0x99, 0x66, 0xFF, 0x00, |
| 1130 | 0x99, 0x66, 0xCC, 0x00, |
| 1131 | 0x99, 0x66, 0x99, 0x00, |
| 1132 | 0x99, 0x66, 0x66, 0x00, |
| 1133 | 0x99, 0x66, 0x33, 0x00, |
| 1134 | 0x99, 0x66, 0x00, 0x00, |
| 1135 | 0x99, 0x33, 0xFF, 0x00, |
| 1136 | 0x99, 0x33, 0xCC, 0x00, |
| 1137 | 0x99, 0x33, 0x99, 0x00, |
| 1138 | 0x99, 0x33, 0x66, 0x00, |
| 1139 | 0x99, 0x33, 0x33, 0x00, |
| 1140 | 0x99, 0x33, 0x00, 0x00, |
| 1141 | 0x99, 0x00, 0xFF, 0x00, |
| 1142 | 0x99, 0x00, 0xCC, 0x00, |
| 1143 | 0x99, 0x00, 0x99, 0x00, |
| 1144 | 0x99, 0x00, 0x66, 0x00, |
| 1145 | 0x99, 0x00, 0x33, 0x00, |
| 1146 | 0x99, 0x00, 0x00, 0x00, |
| 1147 | 0x66, 0xFF, 0xFF, 0x00, |
| 1148 | 0x66, 0xFF, 0xCC, 0x00, |
| 1149 | 0x66, 0xFF, 0x99, 0x00, |
| 1150 | 0x66, 0xFF, 0x66, 0x00, |
| 1151 | 0x66, 0xFF, 0x33, 0x00, |
| 1152 | 0x66, 0xFF, 0x00, 0x00, |
| 1153 | 0x66, 0xCC, 0xFF, 0x00, |
| 1154 | 0x66, 0xCC, 0xCC, 0x00, |
| 1155 | 0x66, 0xCC, 0x99, 0x00, |
| 1156 | 0x66, 0xCC, 0x66, 0x00, |
| 1157 | 0x66, 0xCC, 0x33, 0x00, |
| 1158 | 0x66, 0xCC, 0x00, 0x00, |
| 1159 | 0x66, 0x99, 0xFF, 0x00, |
| 1160 | 0x66, 0x99, 0xCC, 0x00, |
| 1161 | 0x66, 0x99, 0x99, 0x00, |
| 1162 | 0x66, 0x99, 0x66, 0x00, |
| 1163 | 0x66, 0x99, 0x33, 0x00, |
| 1164 | 0x66, 0x99, 0x00, 0x00, |
| 1165 | 0x66, 0x66, 0xFF, 0x00, |
| 1166 | 0x66, 0x66, 0xCC, 0x00, |
| 1167 | 0x66, 0x66, 0x99, 0x00, |
| 1168 | 0x66, 0x66, 0x66, 0x00, |
| 1169 | 0x66, 0x66, 0x33, 0x00, |
| 1170 | 0x66, 0x66, 0x00, 0x00, |
| 1171 | 0x66, 0x33, 0xFF, 0x00, |
| 1172 | 0x66, 0x33, 0xCC, 0x00, |
| 1173 | 0x66, 0x33, 0x99, 0x00, |
| 1174 | 0x66, 0x33, 0x66, 0x00, |
| 1175 | 0x66, 0x33, 0x33, 0x00, |
| 1176 | 0x66, 0x33, 0x00, 0x00, |
| 1177 | 0x66, 0x00, 0xFF, 0x00, |
| 1178 | 0x66, 0x00, 0xCC, 0x00, |
| 1179 | 0x66, 0x00, 0x99, 0x00, |
| 1180 | 0x66, 0x00, 0x66, 0x00, |
| 1181 | 0x66, 0x00, 0x33, 0x00, |
| 1182 | 0x66, 0x00, 0x00, 0x00, |
| 1183 | 0x33, 0xFF, 0xFF, 0x00, |
| 1184 | 0x33, 0xFF, 0xCC, 0x00, |
| 1185 | 0x33, 0xFF, 0x99, 0x00, |
| 1186 | 0x33, 0xFF, 0x66, 0x00, |
| 1187 | 0x33, 0xFF, 0x33, 0x00, |
| 1188 | 0x33, 0xFF, 0x00, 0x00, |
| 1189 | 0x33, 0xCC, 0xFF, 0x00, |
| 1190 | 0x33, 0xCC, 0xCC, 0x00, |
| 1191 | 0x33, 0xCC, 0x99, 0x00, |
| 1192 | 0x33, 0xCC, 0x66, 0x00, |
| 1193 | 0x33, 0xCC, 0x33, 0x00, |
| 1194 | 0x33, 0xCC, 0x00, 0x00, |
| 1195 | 0x33, 0x99, 0xFF, 0x00, |
| 1196 | 0x33, 0x99, 0xCC, 0x00, |
| 1197 | 0x33, 0x99, 0x99, 0x00, |
| 1198 | 0x33, 0x99, 0x66, 0x00, |
| 1199 | 0x33, 0x99, 0x33, 0x00, |
| 1200 | 0x33, 0x99, 0x00, 0x00, |
| 1201 | 0x33, 0x66, 0xFF, 0x00, |
| 1202 | 0x33, 0x66, 0xCC, 0x00, |
| 1203 | 0x33, 0x66, 0x99, 0x00, |
| 1204 | 0x33, 0x66, 0x66, 0x00, |
| 1205 | 0x33, 0x66, 0x33, 0x00, |
| 1206 | 0x33, 0x66, 0x00, 0x00, |
| 1207 | 0x33, 0x33, 0xFF, 0x00, |
| 1208 | 0x33, 0x33, 0xCC, 0x00, |
| 1209 | 0x33, 0x33, 0x99, 0x00, |
| 1210 | 0x33, 0x33, 0x66, 0x00, |
| 1211 | 0x33, 0x33, 0x33, 0x00, |
| 1212 | 0x33, 0x33, 0x00, 0x00, |
| 1213 | 0x33, 0x00, 0xFF, 0x00, |
| 1214 | 0x33, 0x00, 0xCC, 0x00, |
| 1215 | 0x33, 0x00, 0x99, 0x00, |
| 1216 | 0x33, 0x00, 0x66, 0x00, |
| 1217 | 0x33, 0x00, 0x33, 0x00, |
| 1218 | 0x33, 0x00, 0x00, 0x00, |
| 1219 | 0x00, 0xFF, 0xFF, 0x00, |
| 1220 | 0x00, 0xFF, 0xCC, 0x00, |
| 1221 | 0x00, 0xFF, 0x99, 0x00, |
| 1222 | 0x00, 0xFF, 0x66, 0x00, |
| 1223 | 0x00, 0xFF, 0x33, 0x00, |
| 1224 | 0x00, 0xFF, 0x00, 0x00, |
| 1225 | 0x00, 0xCC, 0xFF, 0x00, |
| 1226 | 0x00, 0xCC, 0xCC, 0x00, |
| 1227 | 0x00, 0xCC, 0x99, 0x00, |
| 1228 | 0x00, 0xCC, 0x66, 0x00, |
| 1229 | 0x00, 0xCC, 0x33, 0x00, |
| 1230 | 0x00, 0xCC, 0x00, 0x00, |
| 1231 | 0x00, 0x99, 0xFF, 0x00, |
| 1232 | 0x00, 0x99, 0xCC, 0x00, |
| 1233 | 0x00, 0x99, 0x99, 0x00, |
| 1234 | 0x00, 0x99, 0x66, 0x00, |
| 1235 | 0x00, 0x99, 0x33, 0x00, |
| 1236 | 0x00, 0x99, 0x00, 0x00, |
| 1237 | 0x00, 0x66, 0xFF, 0x00, |
| 1238 | 0x00, 0x66, 0xCC, 0x00, |
| 1239 | 0x00, 0x66, 0x99, 0x00, |
| 1240 | 0x00, 0x66, 0x66, 0x00, |
| 1241 | 0x00, 0x66, 0x33, 0x00, |
| 1242 | 0x00, 0x66, 0x00, 0x00, |
| 1243 | 0x00, 0x33, 0xFF, 0x00, |
| 1244 | 0x00, 0x33, 0xCC, 0x00, |
| 1245 | 0x00, 0x33, 0x99, 0x00, |
| 1246 | 0x00, 0x33, 0x66, 0x00, |
| 1247 | 0x00, 0x33, 0x33, 0x00, |
| 1248 | 0x00, 0x33, 0x00, 0x00, |
| 1249 | 0x00, 0x00, 0xFF, 0x00, |
| 1250 | 0x00, 0x00, 0xCC, 0x00, |
| 1251 | 0x00, 0x00, 0x99, 0x00, |
| 1252 | 0x00, 0x00, 0x66, 0x00, |
| 1253 | 0x00, 0x00, 0x33, 0x00, |
| 1254 | 0xEE, 0x00, 0x00, 0x00, |
| 1255 | 0xDD, 0x00, 0x00, 0x00, |
| 1256 | 0xBB, 0x00, 0x00, 0x00, |
| 1257 | 0xAA, 0x00, 0x00, 0x00, |
| 1258 | 0x88, 0x00, 0x00, 0x00, |
| 1259 | 0x77, 0x00, 0x00, 0x00, |
| 1260 | 0x55, 0x00, 0x00, 0x00, |
| 1261 | 0x44, 0x00, 0x00, 0x00, |
| 1262 | 0x22, 0x00, 0x00, 0x00, |
| 1263 | 0x11, 0x00, 0x00, 0x00, |
| 1264 | 0x00, 0xEE, 0x00, 0x00, |
| 1265 | 0x00, 0xDD, 0x00, 0x00, |
| 1266 | 0x00, 0xBB, 0x00, 0x00, |
| 1267 | 0x00, 0xAA, 0x00, 0x00, |
| 1268 | 0x00, 0x88, 0x00, 0x00, |
| 1269 | 0x00, 0x77, 0x00, 0x00, |
| 1270 | 0x00, 0x55, 0x00, 0x00, |
| 1271 | 0x00, 0x44, 0x00, 0x00, |
| 1272 | 0x00, 0x22, 0x00, 0x00, |
| 1273 | 0x00, 0x11, 0x00, 0x00, |
| 1274 | 0x00, 0x00, 0xEE, 0x00, |
| 1275 | 0x00, 0x00, 0xDD, 0x00, |
| 1276 | 0x00, 0x00, 0xBB, 0x00, |
| 1277 | 0x00, 0x00, 0xAA, 0x00, |
| 1278 | 0x00, 0x00, 0x88, 0x00, |
| 1279 | 0x00, 0x00, 0x77, 0x00, |
| 1280 | 0x00, 0x00, 0x55, 0x00, |
| 1281 | 0x00, 0x00, 0x44, 0x00, |
| 1282 | 0x00, 0x00, 0x22, 0x00, |
| 1283 | 0x00, 0x00, 0x11, 0x00, |
| 1284 | 0xEE, 0xEE, 0xEE, 0x00, |
| 1285 | 0xDD, 0xDD, 0xDD, 0x00, |
| 1286 | 0xBB, 0xBB, 0xBB, 0x00, |
| 1287 | 0xAA, 0xAA, 0xAA, 0x00, |
| 1288 | 0x88, 0x88, 0x88, 0x00, |
| 1289 | 0x77, 0x77, 0x77, 0x00, |
| 1290 | 0x55, 0x55, 0x55, 0x00, |
| 1291 | 0x44, 0x44, 0x44, 0x00, |
| 1292 | 0x22, 0x22, 0x22, 0x00, |
| 1293 | 0x11, 0x11, 0x11, 0x00, |
| 1294 | 0x00, 0x00, 0x00, 0x00 |
| 1295 | ]; |
| 1296 | |
| 1297 | #[cfg(test)] |
| 1298 | mod test { |
| 1299 | use super::*; |
| 1300 | use std::fs::File; |
| 1301 | |
| 1302 | #[test] |
| 1303 | fn test_mov_demux() { |
| 1304 | let mut file = File::open("assets/Indeo/cubes.mov").unwrap(); |
| 1305 | let mut fr = FileReader::new_read(&mut file); |
| 1306 | let mut br = ByteReader::new(&mut fr); |
| 1307 | let mut dmx = MOVDemuxer::new(&mut br); |
| 1308 | let mut sm = StreamManager::new(); |
| 1309 | let mut si = SeekIndex::new(); |
| 1310 | dmx.open(&mut sm, &mut si).unwrap(); |
| 1311 | |
| 1312 | loop { |
| 1313 | let pktres = dmx.get_frame(&mut sm); |
| 1314 | if let Err(e) = pktres { |
| 1315 | if e == DemuxerError::EOF { break; } |
| 1316 | panic!("error"); |
| 1317 | } |
| 1318 | let pkt = pktres.unwrap(); |
| 1319 | println!("Got {}", pkt); |
| 1320 | } |
| 1321 | } |
| 1322 | } |