| 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 | #[allow(dead_code)] |
| 45 | struct AVIDemuxer<'a> { |
| 46 | src: &'a mut ByteReader<'a>, |
| 47 | cur_frame: Vec<u64>, |
| 48 | num_streams: u8, |
| 49 | size: usize, |
| 50 | movi_size: usize, |
| 51 | movi_pos: u64, |
| 52 | movi_orig: usize, |
| 53 | sstate: StreamState, |
| 54 | tb_num: u32, |
| 55 | tb_den: u32, |
| 56 | strm_duration: u32, |
| 57 | key_offs: Vec<u64>, |
| 58 | pal: Vec<PalInfo>, |
| 59 | } |
| 60 | |
| 61 | #[derive(Debug,Clone,Copy,PartialEq)] |
| 62 | enum RIFFTag { |
| 63 | Chunk(u32), |
| 64 | List(u32,u32), |
| 65 | } |
| 66 | |
| 67 | struct RIFFParser { |
| 68 | tag: RIFFTag, |
| 69 | parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>, |
| 70 | } |
| 71 | |
| 72 | impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { |
| 73 | fn open(&mut self, strmgr: &mut StreamManager, seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
| 74 | self.read_header(strmgr, seek_index)?; |
| 75 | Ok(()) |
| 76 | } |
| 77 | |
| 78 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 79 | if self.movi_size == 0 { return Err(EOF); } |
| 80 | let mut tag: [u8; 4] = [0; 4]; |
| 81 | loop { |
| 82 | if (self.src.tell() & 1) == 1 { |
| 83 | self.src.read_skip(1)?; |
| 84 | self.movi_size -= 1; |
| 85 | if self.movi_size == 0 { return Err(EOF); } |
| 86 | } |
| 87 | let is_keyframe = self.key_offs.binary_search(&self.src.tell()).is_ok(); |
| 88 | self.src.read_buf(&mut tag)?; |
| 89 | let size = self.src.read_u32le()? as usize; |
| 90 | if mktag!(tag) == mktag!(b"JUNK") { |
| 91 | self.movi_size -= size + 8; |
| 92 | self.src.read_skip(size)?; |
| 93 | if self.movi_size == 0 { return Err(EOF); } |
| 94 | continue; |
| 95 | } |
| 96 | if mktag!(tag) == mktag!(b"LIST") { |
| 97 | self.movi_size -= 12; |
| 98 | self.src.read_skip(4)?; |
| 99 | if self.movi_size == 0 { return Err(EOF); } |
| 100 | continue; |
| 101 | } |
| 102 | if (tag[0] == b'i' && tag[1] == b'x') || (&tag == b"idx1") { |
| 103 | return Err(EOF); |
| 104 | } |
| 105 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
| 106 | return Err(InvalidData); |
| 107 | } |
| 108 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); |
| 109 | if tag[2] == b'p' && tag[3] == b'c' { |
| 110 | self.parse_palette_change(stream_no as usize, size)?; |
| 111 | self.movi_size -= size; |
| 112 | if self.movi_size == 0 { return Err(EOF); } |
| 113 | continue; |
| 114 | } |
| 115 | let str = strmgr.get_stream(stream_no as usize); |
| 116 | if str.is_none() { return Err(InvalidData); } |
| 117 | let stream = str.unwrap(); |
| 118 | if size == 0 { |
| 119 | self.movi_size -= 8; |
| 120 | if self.movi_size == 0 { return Err(EOF); } |
| 121 | continue; |
| 122 | } |
| 123 | let (tb_num, tb_den) = stream.get_timebase(); |
| 124 | let mut ts = NATimeInfo::new(Some(self.cur_frame[stream_no as usize]), None, None, tb_num, tb_den); |
| 125 | if stream.get_media_type() == StreamType::Audio && tb_num == 1 && stream.get_info().get_name() == "pcm" { |
| 126 | ts.pts = None; |
| 127 | } |
| 128 | let mut pkt = self.src.read_packet(stream, ts, is_keyframe, size)?; |
| 129 | for pe in self.pal.iter_mut() { |
| 130 | if pe.stream_no == (stream_no as usize) { |
| 131 | pkt.add_side_data(NASideData::Palette(pe.changed, pe.pal.clone())); |
| 132 | pe.changed = false; |
| 133 | break; |
| 134 | } |
| 135 | } |
| 136 | self.cur_frame[stream_no as usize] += 1; |
| 137 | self.movi_size -= size + 8; |
| 138 | |
| 139 | return Ok(pkt); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | fn seek(&mut self, time: NATimePoint, seek_index: &SeekIndex) -> DemuxerResult<()> { |
| 144 | let ret = seek_index.find_pos(time); |
| 145 | if ret.is_none() { |
| 146 | return Err(DemuxerError::SeekError); |
| 147 | } |
| 148 | let seek_info = ret.unwrap(); |
| 149 | |
| 150 | if seek_info.pos < self.movi_pos { return Err(DemuxerError::SeekError); } |
| 151 | let skip_size = (seek_info.pos - self.movi_pos) as usize; |
| 152 | if skip_size > self.movi_size { return Err(DemuxerError::SeekError); } |
| 153 | self.movi_size = self.movi_orig - skip_size; |
| 154 | |
| 155 | self.cur_frame[seek_info.str_id as usize] = seek_info.pts; |
| 156 | self.src.seek(SeekFrom::Start(seek_info.pos))?; |
| 157 | |
| 158 | Ok(()) |
| 159 | } |
| 160 | fn get_duration(&self) -> u64 { 0 } |
| 161 | } |
| 162 | |
| 163 | impl<'a> NAOptionHandler for AVIDemuxer<'a> { |
| 164 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 165 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 166 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 167 | } |
| 168 | |
| 169 | impl<'a> AVIDemuxer<'a> { |
| 170 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 171 | AVIDemuxer { |
| 172 | cur_frame: Vec::new(), |
| 173 | num_streams: 0, |
| 174 | src: io, |
| 175 | size: 0, |
| 176 | movi_size: 0, |
| 177 | movi_pos: 0, |
| 178 | movi_orig: 0, |
| 179 | sstate: StreamState::new(), |
| 180 | tb_num: 0, |
| 181 | tb_den: 0, |
| 182 | strm_duration: 0, |
| 183 | key_offs: Vec::new(), |
| 184 | pal: Vec::new(), |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { |
| 189 | if csize < 8 { return Err(InvalidData); } |
| 190 | if depth > 42 { return Err(InvalidData); } |
| 191 | |
| 192 | let tag = self.src.read_u32be()?; |
| 193 | let size = self.src.read_u32le()? as usize; |
| 194 | if size > csize { return Err(InvalidData); } |
| 195 | if RIFFTag::Chunk(tag) == end_tag { |
| 196 | return Ok((size, true)); |
| 197 | } |
| 198 | let is_list = is_list_tag(tag); |
| 199 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; |
| 200 | if RIFFTag::List(tag, ltag) == end_tag { |
| 201 | return Ok((size, true)); |
| 202 | } |
| 203 | |
| 204 | for chunk in CHUNKS.iter() { |
| 205 | if RIFFTag::Chunk(tag) == chunk.tag { |
| 206 | let psize = (chunk.parse)(self, strmgr, size)?; |
| 207 | if psize != size { return Err(InvalidData); } |
| 208 | if (psize & 1) == 1 { self.src.read_skip(1)?; } |
| 209 | return Ok((size + 8, false)); |
| 210 | } |
| 211 | if RIFFTag::List(tag, ltag) == chunk.tag { |
| 212 | let mut rest_size = size - 4; |
| 213 | let psize = (chunk.parse)(self, strmgr, rest_size)?; |
| 214 | if psize > rest_size { return Err(InvalidData); } |
| 215 | rest_size -= psize; |
| 216 | while rest_size > 0 { |
| 217 | let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; |
| 218 | if psize > rest_size { return Err(InvalidData); } |
| 219 | rest_size -= psize; |
| 220 | if ((psize & 1) == 1) && (rest_size > 0) { |
| 221 | rest_size -= 1; |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | return Ok((size + 8, false)); |
| 226 | } |
| 227 | } |
| 228 | if !is_list { |
| 229 | self.src.read_skip(size)?; |
| 230 | } else { |
| 231 | if size < 4 { return Err(InvalidData); } |
| 232 | self.src.read_skip(size - 4)?; |
| 233 | } |
| 234 | if (size & 1) == 1 { self.src.read_skip(1)?; } |
| 235 | Ok((size + 8, false)) |
| 236 | } |
| 237 | |
| 238 | fn read_header(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> { |
| 239 | let riff_tag = self.src.read_u32be()?; |
| 240 | let size = self.src.read_u32le()? as usize; |
| 241 | let avi_tag = self.src.read_u32be()?; |
| 242 | let mut matches = false; |
| 243 | for rt in RIFF_TAGS.iter() { |
| 244 | if rt[0] == riff_tag && rt[1] == avi_tag { |
| 245 | matches = true; |
| 246 | break; |
| 247 | } |
| 248 | } |
| 249 | if !matches { |
| 250 | return Err(InvalidData); |
| 251 | } |
| 252 | self.size = size; |
| 253 | let mut rest_size = size; |
| 254 | loop { |
| 255 | let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; |
| 256 | if end { |
| 257 | self.movi_size = csz - 4; |
| 258 | self.movi_orig = self.movi_size; |
| 259 | self.movi_pos = self.src.tell(); |
| 260 | break; |
| 261 | } |
| 262 | rest_size -= csz; |
| 263 | } |
| 264 | if !seek_idx.skip_index { |
| 265 | self.src.read_skip(self.movi_size)?; |
| 266 | while rest_size > 0 { |
| 267 | let ret = self.parse_chunk(strmgr, RIFFTag::Chunk(mktag!(b"idx1")), rest_size,0); |
| 268 | if ret.is_err() { break; } |
| 269 | let (csz, end) = ret.unwrap(); |
| 270 | if end { |
| 271 | let _res = parse_idx1(&mut self.src, strmgr, seek_idx, csz, self.movi_pos, &mut self.key_offs); |
| 272 | break; |
| 273 | } |
| 274 | rest_size -= csz; |
| 275 | } |
| 276 | } |
| 277 | if self.movi_pos != 0 { |
| 278 | self.src.seek(SeekFrom::Start(self.movi_pos))?; |
| 279 | } else { |
| 280 | return Err(InvalidData); |
| 281 | } |
| 282 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { |
| 283 | return Err(InvalidData); |
| 284 | } |
| 285 | Ok(()) |
| 286 | } |
| 287 | |
| 288 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { |
| 289 | if size == 0 { return Ok(None); } |
| 290 | let mut edvec: Vec<u8> = vec![0; size]; |
| 291 | self.src.read_buf(&mut edvec)?; |
| 292 | Ok(Some(edvec)) |
| 293 | } |
| 294 | |
| 295 | fn parse_palette_change(&mut self, stream_no: usize, size: usize) -> DemuxerResult<()> { |
| 296 | for pe in self.pal.iter_mut() { |
| 297 | if pe.stream_no == stream_no { |
| 298 | let start_clr = self.src.read_byte()? as usize; |
| 299 | let len = self.src.read_byte()? as usize; |
| 300 | let _flags = self.src.read_u16le()?; |
| 301 | validate!(start_clr + len <= 256); |
| 302 | validate!(len * 4 + 4 == size); |
| 303 | let mut newpal = *pe.pal; |
| 304 | for i in start_clr..(start_clr + len) { |
| 305 | newpal[i * 4] = self.src.read_byte()?; |
| 306 | newpal[i * 4 + 1] = self.src.read_byte()?; |
| 307 | newpal[i * 4 + 2] = self.src.read_byte()?; |
| 308 | newpal[i * 4 + 3] = 0; |
| 309 | self.src.read_byte()?; // flags |
| 310 | } |
| 311 | pe.pal = Arc::new(newpal); |
| 312 | pe.changed = true; |
| 313 | return Ok(()); |
| 314 | } |
| 315 | } |
| 316 | self.src.read_skip(size)?; |
| 317 | Ok(()) |
| 318 | } |
| 319 | } |
| 320 | |
| 321 | const RIFF_TAGS: &[[u32; 2]] = &[ |
| 322 | [ mktag!(b"RIFF"), mktag!(b"AVI ") ], |
| 323 | [ mktag!(b"RIFF"), mktag!(b"AVIX") ], |
| 324 | [ mktag!(b"ON2 "), mktag!(b"ON2f") ], |
| 325 | ]; |
| 326 | |
| 327 | const CHUNKS: [RIFFParser; 7] = [ |
| 328 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, |
| 329 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, |
| 330 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, |
| 331 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"ON2h")), parse: parse_avih }, |
| 332 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, |
| 333 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, |
| 334 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, |
| 335 | ]; |
| 336 | |
| 337 | fn is_list_tag(tag: u32) -> bool { |
| 338 | for chunk in CHUNKS.iter() { |
| 339 | if let RIFFTag::List(ltag, _) = chunk.tag { |
| 340 | if tag == ltag { |
| 341 | return true; |
| 342 | } |
| 343 | } |
| 344 | } |
| 345 | false |
| 346 | } |
| 347 | |
| 348 | #[allow(unused_variables)] |
| 349 | fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 350 | Ok(0) |
| 351 | } |
| 352 | |
| 353 | #[allow(unused_variables)] |
| 354 | fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 355 | Ok(0) |
| 356 | } |
| 357 | |
| 358 | #[allow(unused_variables)] |
| 359 | fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 360 | if size < 0x38 { return Err(InvalidData); } |
| 361 | let tag = dmx.src.read_u32be()?; //stream type |
| 362 | let fcc = dmx.src.read_u32be()?; //handler(fourcc) |
| 363 | dmx.src.read_u32le()?; //flags |
| 364 | dmx.src.read_skip(2)?; //priority |
| 365 | dmx.src.read_skip(2)?; //language |
| 366 | dmx.src.read_skip(4)?; //initial frames |
| 367 | dmx.tb_num = dmx.src.read_u32le()?; //scale |
| 368 | dmx.tb_den = dmx.src.read_u32le()?; //rate |
| 369 | dmx.src.read_skip(4)?; //start |
| 370 | dmx.strm_duration = dmx.src.read_u32le()?; |
| 371 | dmx.src.read_skip(4)?; //buf size |
| 372 | dmx.src.read_skip(4)?; //quality |
| 373 | dmx.src.read_skip(4)?; //sample size |
| 374 | let a = dmx.src.read_u16le()?; |
| 375 | let b = dmx.src.read_u16le()?; |
| 376 | let c = dmx.src.read_u16le()?; |
| 377 | let d = dmx.src.read_u16le()?; |
| 378 | |
| 379 | dmx.src.read_skip(size - 0x38)?; |
| 380 | |
| 381 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { |
| 382 | return Err(InvalidData); |
| 383 | } |
| 384 | if tag == mktag!(b"vids") { |
| 385 | dmx.sstate.strm_type = Some(StreamType::Video); |
| 386 | } else if tag == mktag!(b"auds") { |
| 387 | dmx.sstate.strm_type = Some(StreamType::Audio); |
| 388 | } else { |
| 389 | dmx.sstate.strm_type = Some(StreamType::Data); |
| 390 | } |
| 391 | dmx.sstate.got_strf = false; |
| 392 | |
| 393 | Ok(size) |
| 394 | } |
| 395 | |
| 396 | fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 397 | if dmx.sstate.strm_type.is_none() { return Err(InvalidData); } |
| 398 | match dmx.sstate.strm_type.unwrap() { |
| 399 | StreamType::Video => parse_strf_vids(dmx, strmgr, size), |
| 400 | StreamType::Audio => parse_strf_auds(dmx, strmgr, size), |
| 401 | _ => parse_strf_xxxx(dmx, strmgr, size), |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | #[allow(unused_variables)] |
| 406 | fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 407 | if size < 40 { return Err(InvalidData); } |
| 408 | let bi_size = dmx.src.read_u32le()?; |
| 409 | if (bi_size as usize) < 40 { return Err(InvalidData); } |
| 410 | let width = dmx.src.read_u32le()?; |
| 411 | let height = dmx.src.read_u32le()? as i32; |
| 412 | let planes = dmx.src.read_u16le()?; |
| 413 | let bitcount = dmx.src.read_u16le()?; |
| 414 | let mut compression: [u8; 4] = [0; 4]; |
| 415 | dmx.src.read_buf(&mut compression)?; |
| 416 | let img_size = dmx.src.read_u32le()?; |
| 417 | let xdpi = dmx.src.read_u32le()?; |
| 418 | let ydpi = dmx.src.read_u32le()?; |
| 419 | let colors = dmx.src.read_u32le()?; |
| 420 | validate!(colors <= 256); |
| 421 | let imp_colors = dmx.src.read_u32le()?; |
| 422 | |
| 423 | let flip = height < 0; |
| 424 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; |
| 425 | let mut vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, format); |
| 426 | vhdr.bits = (planes as u8) * (bitcount as u8); |
| 427 | let cname = if find_raw_rgb_fmt(&compression, planes, bitcount, flip, &mut vhdr) { |
| 428 | "rawvideo-ms" |
| 429 | } else if find_raw_yuv_fmt(&compression, &mut vhdr) { |
| 430 | "rawvideo" |
| 431 | } else { |
| 432 | match register::find_codec_from_avi_fourcc(&compression) { |
| 433 | None => "unknown", |
| 434 | Some(name) => name, |
| 435 | } |
| 436 | }; |
| 437 | let vci = NACodecTypeInfo::Video(vhdr); |
| 438 | let edata = dmx.read_extradata(size - 40)?; |
| 439 | if colors > 0 { |
| 440 | if let Some(ref buf) = edata { |
| 441 | let mut pal = [0u8; 1024]; |
| 442 | for (dpal, spal) in pal.chunks_mut(4).take(colors as usize).zip(buf.chunks(4)) { |
| 443 | dpal[0] = spal[2]; |
| 444 | dpal[1] = spal[1]; |
| 445 | dpal[2] = spal[0]; |
| 446 | dpal[3] = 0; |
| 447 | } |
| 448 | let pal = PalInfo { pal: Arc::new(pal), changed: true, stream_no: strmgr.get_num_streams() }; |
| 449 | dmx.pal.push(pal); |
| 450 | } |
| 451 | } |
| 452 | let vinfo = NACodecInfo::new(cname, vci, edata); |
| 453 | 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))); |
| 454 | if res.is_none() { return Err(MemoryError); } |
| 455 | dmx.sstate.reset(); |
| 456 | Ok(size) |
| 457 | } |
| 458 | |
| 459 | fn find_raw_rgb_fmt(compr: &[u8; 4], planes: u16, bitcount: u16, flip: bool, vhdr: &mut NAVideoInfo) -> bool { |
| 460 | match compr { |
| 461 | &[0, 0, 0, 0] | b"DIB " => { |
| 462 | if planes != 1 { |
| 463 | return false; |
| 464 | } |
| 465 | let fmt_name = match bitcount { |
| 466 | 8 => "pal8", |
| 467 | 16 => "bgr555", |
| 468 | 24 => "bgr24", |
| 469 | 32 => "bgra24", |
| 470 | _ => return false, |
| 471 | }; |
| 472 | if let Ok(fmt) = NAPixelFormaton::from_str(fmt_name) { |
| 473 | vhdr.format = fmt; |
| 474 | vhdr.flipped = !flip; |
| 475 | true |
| 476 | } else { |
| 477 | false |
| 478 | } |
| 479 | }, |
| 480 | _ => false, |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | fn find_raw_yuv_fmt(compr: &[u8; 4], vhdr: &mut NAVideoInfo) -> bool { |
| 485 | let (fmt_name, swapuv) = match compr { |
| 486 | b"UYVY" | b"UYNY" | b"UYNV" | b"2vuy" => ("uyvy", false), |
| 487 | b"I420" | b"IYUV" => ("yuv420p", false), |
| 488 | b"YV12" => ("yuv420p", true), |
| 489 | b"YVU9" => ("yuv410p", true), |
| 490 | _ => return false, |
| 491 | }; |
| 492 | if let Ok(fmt) = NAPixelFormaton::from_str(fmt_name) { |
| 493 | vhdr.format = fmt; |
| 494 | if swapuv { |
| 495 | vhdr.format.comp_info.swap(1, 2); |
| 496 | } |
| 497 | true |
| 498 | } else { |
| 499 | false |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | #[allow(unused_variables)] |
| 504 | fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 505 | if size < 16 { return Err(InvalidData); } |
| 506 | let w_format_tag = dmx.src.read_u16le()?; |
| 507 | let channels = dmx.src.read_u16le()?; |
| 508 | let samplespersec = dmx.src.read_u32le()?; |
| 509 | let avgbytespersec = dmx.src.read_u32le()?; |
| 510 | let block_align = dmx.src.read_u16le()?; |
| 511 | let bits_per_sample = dmx.src.read_u16le()?; |
| 512 | |
| 513 | let signed = bits_per_sample > 8; |
| 514 | let soniton = NASoniton::new(bits_per_sample as u8, if signed { SONITON_FLAG_SIGNED } else { 0 }); |
| 515 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); |
| 516 | let edata = if size > 16 { |
| 517 | let edata_size = dmx.src.read_u16le()? as usize; |
| 518 | validate!(edata_size + 18 <= size); |
| 519 | dmx.read_extradata(size - 18)? |
| 520 | } else { |
| 521 | None |
| 522 | }; |
| 523 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { |
| 524 | None => "unknown", |
| 525 | Some(name) => name, |
| 526 | }; |
| 527 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); |
| 528 | 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))); |
| 529 | if res.is_none() { return Err(MemoryError); } |
| 530 | dmx.sstate.reset(); |
| 531 | Ok(size) |
| 532 | } |
| 533 | |
| 534 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 535 | let edata = dmx.read_extradata(size)?; |
| 536 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); |
| 537 | 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))); |
| 538 | if res.is_none() { return Err(MemoryError); } |
| 539 | dmx.sstate.reset(); |
| 540 | Ok(size) |
| 541 | } |
| 542 | |
| 543 | #[allow(unused_variables)] |
| 544 | fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 545 | if size < 0x38 { return Err(InvalidData); } |
| 546 | let timebase = dmx.src.read_u32le()?; //microsec per frame |
| 547 | dmx.src.read_skip(4)?; //max frame size |
| 548 | dmx.src.read_skip(4)?; //padding |
| 549 | dmx.src.read_u32le()?; //flags |
| 550 | let frames = dmx.src.read_u32le()?; //frames |
| 551 | dmx.src.read_skip(4)?; //initial frames |
| 552 | let streams = dmx.src.read_u32le()?; //streams |
| 553 | if streams > 100 { return Err(InvalidData); } |
| 554 | dmx.num_streams = streams as u8; |
| 555 | |
| 556 | dmx.src.read_skip(4)?; //buf size |
| 557 | let width = dmx.src.read_u32le()?; //width |
| 558 | let height = dmx.src.read_u32le()? as i32; //height |
| 559 | dmx.src.read_skip(16)?; //reserved |
| 560 | |
| 561 | dmx.cur_frame.resize(streams as usize, 0); |
| 562 | dmx.src.read_skip(size - 0x38)?; |
| 563 | Ok(size) |
| 564 | } |
| 565 | |
| 566 | #[allow(unused_variables)] |
| 567 | fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
| 568 | dmx.src.read_skip(size)?; |
| 569 | Ok(size) |
| 570 | } |
| 571 | |
| 572 | #[allow(clippy::verbose_bit_mask)] |
| 573 | 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> { |
| 574 | validate!((size & 15) == 0); |
| 575 | let mut tag = [0u8; 4]; |
| 576 | let num_entries = size >> 4; |
| 577 | let mut counter = [0u64; 100]; |
| 578 | let mut add_offset = 0; |
| 579 | let mut set_offset = false; |
| 580 | for _ in 0..num_entries { |
| 581 | src.read_buf(&mut tag)?; |
| 582 | let flags = src.read_u32le()?; |
| 583 | let mut offset = src.read_u32le()? as u64; |
| 584 | let _length = src.read_u32le()?; |
| 585 | |
| 586 | if !set_offset && offset < movi_pos { |
| 587 | add_offset = movi_pos - offset; |
| 588 | } |
| 589 | set_offset = true; |
| 590 | |
| 591 | offset += add_offset; |
| 592 | |
| 593 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
| 594 | return Err(InvalidData); |
| 595 | } |
| 596 | let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize; |
| 597 | |
| 598 | if (flags & 0x10) != 0 { |
| 599 | if let Some(str) = strmgr.get_stream(stream_no) { |
| 600 | if str.get_media_type() == StreamType::Video { |
| 601 | let (tb_num, tb_den) = str.get_timebase(); |
| 602 | let pts = counter[stream_no]; |
| 603 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); |
| 604 | validate!(offset >= movi_pos); |
| 605 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: offset }); |
| 606 | } |
| 607 | key_offs.push(offset); |
| 608 | } |
| 609 | } |
| 610 | counter[stream_no] += 1; |
| 611 | } |
| 612 | key_offs.sort_unstable(); |
| 613 | Ok(size) |
| 614 | } |
| 615 | |
| 616 | pub struct AVIDemuxerCreator { } |
| 617 | |
| 618 | impl DemuxerCreator for AVIDemuxerCreator { |
| 619 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
| 620 | Box::new(AVIDemuxer::new(br)) |
| 621 | } |
| 622 | fn get_name(&self) -> &'static str { "avi" } |
| 623 | } |
| 624 | |
| 625 | #[cfg(test)] |
| 626 | mod test { |
| 627 | use super::*; |
| 628 | use std::fs::File; |
| 629 | |
| 630 | #[test] |
| 631 | fn test_avi_demux() { |
| 632 | let mut file = File::open("assets/Indeo/laser05.avi").unwrap(); |
| 633 | let mut fr = FileReader::new_read(&mut file); |
| 634 | let mut br = ByteReader::new(&mut fr); |
| 635 | let mut dmx = AVIDemuxer::new(&mut br); |
| 636 | let mut sm = StreamManager::new(); |
| 637 | let mut si = SeekIndex::new(); |
| 638 | dmx.open(&mut sm, &mut si).unwrap(); |
| 639 | |
| 640 | loop { |
| 641 | let pktres = dmx.get_frame(&mut sm); |
| 642 | if let Err(e) = pktres { |
| 643 | if e == DemuxerError::EOF { break; } |
| 644 | panic!("error"); |
| 645 | } |
| 646 | let pkt = pktres.unwrap(); |
| 647 | println!("Got {}", pkt); |
| 648 | } |
| 649 | } |
| 650 | } |