| 1 | use super::*; |
| 2 | use super::DemuxerError::*; |
| 3 | //use io::byteio::*; |
| 4 | //use frame::*; |
| 5 | use formats::*; |
| 6 | use std::io::SeekFrom; |
| 7 | use std::mem; |
| 8 | |
| 9 | macro_rules! mktag { |
| 10 | ($a:expr, $b:expr, $c:expr, $d:expr) => ({ |
| 11 | (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32) |
| 12 | }); |
| 13 | ($arr:expr) => ({ |
| 14 | (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32) |
| 15 | }); |
| 16 | } |
| 17 | |
| 18 | struct RMVideoStream { |
| 19 | frame: Vec<u8>, |
| 20 | hdr_size: usize, |
| 21 | frame_size: usize, |
| 22 | frame_pos: usize, |
| 23 | } |
| 24 | |
| 25 | impl RMVideoStream { |
| 26 | fn new() -> Self { |
| 27 | RMVideoStream { |
| 28 | frame: Vec::new(), |
| 29 | hdr_size: 0, |
| 30 | frame_size: 0, |
| 31 | frame_pos: 0, |
| 32 | } |
| 33 | } |
| 34 | fn flush(&mut self) { |
| 35 | self.frame.truncate(0); |
| 36 | self.frame_size = 0; |
| 37 | self.frame_pos = 0; |
| 38 | } |
| 39 | fn start_slice(&mut self, num_slices: usize, frame_size: usize, data: &[u8]) { |
| 40 | self.hdr_size = num_slices * 8 + 1; |
| 41 | self.frame.resize(frame_size + self.hdr_size, 0); |
| 42 | self.frame[0] = (num_slices - 1) as u8; |
| 43 | self.frame_pos = 0; |
| 44 | self.add_slice(1, data); |
| 45 | } |
| 46 | fn add_slice(&mut self, slice_no: usize, data: &[u8]) { |
| 47 | self.write_slice_info(slice_no); |
| 48 | let dslice = &mut self.frame[self.hdr_size + self.frame_pos..][..data.len()]; |
| 49 | dslice.copy_from_slice(data); |
| 50 | self.frame_pos += data.len(); |
| 51 | } |
| 52 | fn write_slice_info(&mut self, slice_no: usize) { |
| 53 | let off = 1 + (slice_no - 1) * 8; |
| 54 | self.frame[off + 0] = 0; |
| 55 | self.frame[off + 1] = 0; |
| 56 | self.frame[off + 2] = 0; |
| 57 | self.frame[off + 3] = 1; |
| 58 | self.frame[off + 4] = (self.frame_pos >> 24) as u8; |
| 59 | self.frame[off + 5] = (self.frame_pos >> 16) as u8; |
| 60 | self.frame[off + 6] = (self.frame_pos >> 8) as u8; |
| 61 | self.frame[off + 7] = (self.frame_pos >> 0) as u8; |
| 62 | } |
| 63 | fn get_frame_data(&mut self) -> Vec<u8> { |
| 64 | let mut v: Vec<u8> = Vec::new(); |
| 65 | mem::swap(&mut v, &mut self.frame); |
| 66 | self.flush(); |
| 67 | v |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | #[allow(dead_code)] |
| 72 | #[derive(Clone,Copy,PartialEq)] |
| 73 | enum Deinterleaver { |
| 74 | None, |
| 75 | RA28_8, |
| 76 | Generic, |
| 77 | Sipro, |
| 78 | VBR, |
| 79 | } |
| 80 | |
| 81 | #[allow(dead_code)] |
| 82 | struct RMAudioStream { |
| 83 | deint: Deinterleaver, |
| 84 | iinfo: Option<InterleaveInfo>, |
| 85 | } |
| 86 | |
| 87 | const RM_ILEAVE_INT0: u32 = mktag!(b"Int0"); |
| 88 | const RM_ILEAVE_INT4: u32 = mktag!(b"Int4"); |
| 89 | const RM_ILEAVE_GENR: u32 = mktag!(b"genr"); |
| 90 | const RM_ILEAVE_SIPR: u32 = mktag!(b"sipr"); |
| 91 | const RM_ILEAVE_VBRS: u32 = mktag!(b"vbrs"); |
| 92 | |
| 93 | impl RMAudioStream { |
| 94 | fn new(iinfo: Option<InterleaveInfo>) -> Self { |
| 95 | let deint; |
| 96 | if let Some(info) = iinfo { |
| 97 | deint = match info.id { |
| 98 | RM_ILEAVE_INT0 => Deinterleaver::None, |
| 99 | RM_ILEAVE_INT4 => Deinterleaver::RA28_8, |
| 100 | RM_ILEAVE_GENR => Deinterleaver::Generic, |
| 101 | RM_ILEAVE_SIPR => Deinterleaver::Sipro, |
| 102 | RM_ILEAVE_VBRS => Deinterleaver::VBR, |
| 103 | _ => {println!("unknown deint {:X}", info.id); Deinterleaver::None }, |
| 104 | }; |
| 105 | } else { |
| 106 | deint = Deinterleaver::None; |
| 107 | } |
| 108 | RMAudioStream { deint: deint, iinfo: iinfo } |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | enum RMStreamType { |
| 113 | Audio(RMAudioStream), |
| 114 | Video(RMVideoStream), |
| 115 | Logical, |
| 116 | Unknown, |
| 117 | } |
| 118 | |
| 119 | struct RealMediaDemuxer<'a> { |
| 120 | src: &'a mut ByteReader<'a>, |
| 121 | data_pos: u64, |
| 122 | num_packets: u32, |
| 123 | cur_packet: u32, |
| 124 | |
| 125 | streams: Vec<RMStreamType>, |
| 126 | str_ids: Vec<u16>, |
| 127 | |
| 128 | queued_pkts: Vec<NAPacket>, |
| 129 | slice_buf: Vec<u8>, |
| 130 | } |
| 131 | |
| 132 | fn find_codec_name(registry: &[(&[u8;4], &'static str)], fcc: u32) -> &'static str { |
| 133 | for &(fourcc, name) in registry { |
| 134 | if mktag!(fourcc) == fcc { return name; } |
| 135 | } |
| 136 | "unknown" |
| 137 | } |
| 138 | |
| 139 | fn read_14or30(src: &mut ByteReader) -> DemuxerResult<(bool, u32)> { |
| 140 | let tmp = src.read_u16be()?; |
| 141 | let flag = (tmp & 0x8000) != 0; |
| 142 | if (tmp & 0x4000) == 0x4000 { |
| 143 | Ok((flag, ((tmp & 0x3FFF) as u32))) |
| 144 | } else { |
| 145 | let val = ((tmp as u32) << 16) | (src.read_u16be()? as u32); |
| 146 | Ok((flag, val & 0x3FFFFFFF)) |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | fn read_video_buf(src: &mut ByteReader, stream: Rc<NAStream>, ts: u32, keyframe: bool, frame_size: usize) -> DemuxerResult<NAPacket> { |
| 151 | let size = (frame_size as usize) + 9; |
| 152 | let mut vec: Vec<u8> = Vec::with_capacity(size); |
| 153 | vec.resize(size, 0); |
| 154 | //v[0] = 0; // 1 slice |
| 155 | vec[4] = 1; |
| 156 | src.read_buf(&mut vec[9..])?; |
| 157 | |
| 158 | let (tb_num, tb_den) = stream.get_timebase(); |
| 159 | let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den); |
| 160 | Ok(NAPacket::new(stream, ts, keyframe, vec)) |
| 161 | } |
| 162 | |
| 163 | fn read_multiple_frame(src: &mut ByteReader, stream: Rc<NAStream>, keyframe: bool, skip_mtype: bool) -> DemuxerResult<NAPacket> { |
| 164 | if !skip_mtype { |
| 165 | let mtype = src.read_byte()?; |
| 166 | validate!(mtype == 0xC0); |
| 167 | } |
| 168 | let (_, frame_size) = read_14or30(src)?; |
| 169 | let (_, timestamp) = read_14or30(src)?; |
| 170 | let _seq_no = src.read_byte()?; |
| 171 | //println!(" multiple frame size {} ts {} seq {}", frame_size, timestamp, seq_no); |
| 172 | |
| 173 | read_video_buf(src, stream, timestamp, keyframe, frame_size as usize) |
| 174 | } |
| 175 | |
| 176 | impl<'a> DemuxCore<'a> for RealMediaDemuxer<'a> { |
| 177 | #[allow(unused_variables)] |
| 178 | fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
| 179 | self.read_header(strmgr)?; |
| 180 | Ok(()) |
| 181 | } |
| 182 | |
| 183 | #[allow(unused_variables)] |
| 184 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 185 | if !self.queued_pkts.is_empty() { |
| 186 | let pkt = self.queued_pkts.pop().unwrap(); |
| 187 | return Ok(pkt); |
| 188 | } |
| 189 | loop { |
| 190 | if self.cur_packet >= self.num_packets { return Err(DemuxerError::EOF); } |
| 191 | |
| 192 | let pkt_start = self.src.tell(); |
| 193 | let ver = self.src.read_u16le()?; |
| 194 | validate!(ver <= 1); |
| 195 | let len = self.src.read_u16be()? as usize; |
| 196 | let str_no = self.src.read_u16be()?; |
| 197 | let ts = self.src.read_u32be()?; |
| 198 | let _pkt_grp; |
| 199 | if ver == 0 { |
| 200 | _pkt_grp = self.src.read_byte()?; |
| 201 | } else { |
| 202 | //asm_rule = self.src.read_u16le()?; |
| 203 | self.src.read_skip(2)?; |
| 204 | _pkt_grp = 0; |
| 205 | } |
| 206 | let flags = self.src.read_byte()?; |
| 207 | let hdr_size = self.src.tell() - pkt_start; |
| 208 | //println!("packet @{:X} size {} for {} ts {} grp {} flags {:X}", pkt_start, len, str_no, ts, pkt_grp, flags); |
| 209 | self.cur_packet += 1; |
| 210 | |
| 211 | let payload_size = len - (hdr_size as usize); |
| 212 | |
| 213 | let sr = self.str_ids.iter().position(|x| *x == str_no); |
| 214 | if sr.is_none() { |
| 215 | //println!("stream {} not found", str_no); |
| 216 | self.src.read_skip(payload_size)?; |
| 217 | return Err(DemuxerError::InvalidData); |
| 218 | } |
| 219 | let str_id = sr.unwrap(); |
| 220 | let streamres = strmgr.get_stream_by_id(str_no as u32); |
| 221 | if streamres.is_none() { |
| 222 | self.src.read_skip(payload_size)?; |
| 223 | continue; |
| 224 | } |
| 225 | let stream = streamres.unwrap(); |
| 226 | //println!(" stream {}", str_id); |
| 227 | if strmgr.is_ignored_id(str_no as u32) { |
| 228 | self.src.read_skip(payload_size)?; |
| 229 | continue; |
| 230 | } |
| 231 | //todo skip unwanted packet |
| 232 | let keyframe = (flags & KEYFRAME_FLAG) != 0; |
| 233 | |
| 234 | let result = match self.streams[str_id] { |
| 235 | RMStreamType::Video(ref mut vstr) => { |
| 236 | |
| 237 | let pos = self.src.tell(); |
| 238 | let b0 = self.src.read_byte()?; |
| 239 | match b0 >> 6 { |
| 240 | 0 => { // partial frame |
| 241 | let b1 = self.src.read_byte()?; |
| 242 | let hdr1 = ((b0 as u16) << 8) | (b1 as u16); |
| 243 | let num_pkts = ((hdr1 >> 7) & 0x7F) as usize; |
| 244 | let packet_num = hdr1 & 0x7F; |
| 245 | let (_, frame_size) = read_14or30(self.src)?; |
| 246 | let (_, off) = read_14or30(self.src)?; |
| 247 | let seq_no = self.src.read_byte()?; |
| 248 | //println!(" mode 0 pkt {}/{} off {}/{} seq {}", packet_num, num_pkts, off, frame_size, seq_no); |
| 249 | let hdr_skip = (self.src.tell() - pos) as usize; |
| 250 | |
| 251 | let slice_size = (payload_size - hdr_skip) as usize; |
| 252 | self.slice_buf.resize(slice_size, 0); |
| 253 | self.src.read_buf(self.slice_buf.as_mut_slice())?; |
| 254 | if packet_num == 1 { |
| 255 | vstr.start_slice(num_pkts, frame_size as usize, self.slice_buf.as_slice()); |
| 256 | } else { |
| 257 | vstr.add_slice(packet_num as usize, self.slice_buf.as_slice()); |
| 258 | } |
| 259 | if (packet_num as usize) < num_pkts { |
| 260 | continue; |
| 261 | } |
| 262 | //todo: check if full frame is received |
| 263 | let (tb_num, tb_den) = stream.get_timebase(); |
| 264 | let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den); |
| 265 | let pkt = NAPacket::new(stream, ts, keyframe, vstr.get_frame_data()); |
| 266 | Ok(pkt) |
| 267 | }, |
| 268 | 1 => { // whole frame |
| 269 | let seq_no = self.src.read_byte()?; |
| 270 | //println!(" mode 1 seq {}", seq_no); |
| 271 | read_video_buf(self.src, stream, ts, keyframe, payload_size - 1) |
| 272 | }, |
| 273 | 2 => { // last partial frame |
| 274 | let b1 = self.src.read_byte()?; |
| 275 | let hdr1 = ((b0 as u16) << 8) | (b1 as u16); |
| 276 | let num_pkts = ((hdr1 >> 7) & 0x7F) as usize; |
| 277 | let packet_num = hdr1 & 0x7F; |
| 278 | let (_, frame_size) = read_14or30(self.src)?; |
| 279 | let (_, tail_size) = read_14or30(self.src)?; |
| 280 | let seq_no = self.src.read_byte()?; |
| 281 | //println!(" mode 2 pkt {}/{} tail {}/{} seq {}", packet_num, num_pkts, tail_size, frame_size, seq_no); |
| 282 | self.slice_buf.resize(tail_size as usize, 0); |
| 283 | self.src.read_buf(self.slice_buf.as_mut_slice())?; |
| 284 | vstr.add_slice(packet_num as usize, self.slice_buf.as_slice()); |
| 285 | |
| 286 | while self.src.tell() < pos + (payload_size as u64) { |
| 287 | let res = read_multiple_frame(self.src, stream.clone(), false, false); |
| 288 | if res.is_err() { break; } |
| 289 | self.queued_pkts.push(res.unwrap()); |
| 290 | } |
| 291 | self.queued_pkts.reverse(); |
| 292 | let (tb_num, tb_den) = stream.get_timebase(); |
| 293 | let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den); |
| 294 | let pkt = NAPacket::new(stream, ts, keyframe, vstr.get_frame_data()); |
| 295 | Ok(pkt) |
| 296 | }, |
| 297 | _ => { // multiple frames |
| 298 | //println!(" mode 3"); |
| 299 | let res = read_multiple_frame(self.src, stream.clone(), keyframe, true); |
| 300 | if res.is_err() { return res; } |
| 301 | while self.src.tell() < pos + (payload_size as u64) { |
| 302 | let res = read_multiple_frame(self.src, stream.clone(), false, false); |
| 303 | if res.is_err() { break; } |
| 304 | self.queued_pkts.push(res.unwrap()); |
| 305 | } |
| 306 | self.queued_pkts.reverse(); |
| 307 | res |
| 308 | }, |
| 309 | } |
| 310 | }, |
| 311 | RMStreamType::Audio(ref mut astr) => { |
| 312 | let (tb_num, tb_den) = stream.get_timebase(); |
| 313 | let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den); |
| 314 | self.src.read_packet(stream, ts, keyframe, payload_size) |
| 315 | }, |
| 316 | _ => { |
| 317 | // self.src.read_skip(payload_size)?; |
| 318 | Err(DemuxerError::InvalidData) |
| 319 | }, |
| 320 | }; |
| 321 | return result; |
| 322 | } |
| 323 | } |
| 324 | |
| 325 | #[allow(unused_variables)] |
| 326 | fn seek(&mut self, time: u64) -> DemuxerResult<()> { |
| 327 | Err(NotImplemented) |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | fn read_chunk(src: &mut ByteReader) -> DemuxerResult<(u32, u32, u16)> { |
| 332 | let id = src.read_u32be()?; |
| 333 | if id == 0 { return Ok((0, 0, 0)); } |
| 334 | let size = src.read_u32be()?; |
| 335 | validate!(size >= 10); |
| 336 | let ver = src.read_u16be()?; |
| 337 | validate!(ver <= 1); |
| 338 | Ok((id, size, ver)) |
| 339 | } |
| 340 | |
| 341 | #[derive(Clone,Copy,Debug)] |
| 342 | struct InterleaveInfo { |
| 343 | id: u32, |
| 344 | factor: u16, |
| 345 | block_size: u16, |
| 346 | frame_size: u16, |
| 347 | } |
| 348 | |
| 349 | #[derive(Clone,Copy,Debug)] |
| 350 | struct RealAudioInfo { |
| 351 | fcc: u32, |
| 352 | sample_rate: u32, |
| 353 | sample_size: u16, |
| 354 | channels: u16, |
| 355 | channel_mask: u32, |
| 356 | granularity: u32, |
| 357 | bytes_per_minute: u32, |
| 358 | total_bytes: u32, |
| 359 | edata_size: u32, |
| 360 | ileave_info: Option<InterleaveInfo> |
| 361 | } |
| 362 | |
| 363 | fn skip_ra_metadata(src: &mut ByteReader) -> DemuxerResult<()> { |
| 364 | let title_len = src.read_byte()? as usize; |
| 365 | src.read_skip(title_len)?; |
| 366 | let author_len = src.read_byte()? as usize; |
| 367 | src.read_skip(author_len)?; |
| 368 | let copywrong_len = src.read_byte()? as usize; |
| 369 | src.read_skip(copywrong_len)?; |
| 370 | let comment_len = src.read_byte()? as usize; |
| 371 | src.read_skip(comment_len)?; |
| 372 | Ok(()) |
| 373 | } |
| 374 | |
| 375 | #[allow(unused_variables)] |
| 376 | fn parse_aformat3(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> { |
| 377 | let start = src.tell(); |
| 378 | let header_len = src.read_u16be()?; |
| 379 | validate!(header_len >= 24); |
| 380 | let flavor = src.read_u16be()?; |
| 381 | let granularity = src.read_u32be()?; |
| 382 | let bytes_per_minute = src.read_u32be()?; |
| 383 | let total_bytes = src.read_u32be()?; |
| 384 | |
| 385 | skip_ra_metadata(src)?; |
| 386 | |
| 387 | let _can_copy = src.read_byte()?; |
| 388 | let fcc_len = src.read_byte()?; |
| 389 | validate!(fcc_len == 4); |
| 390 | let fcc = src.read_u32be()?; |
| 391 | |
| 392 | let end = src.tell(); |
| 393 | validate!(end - start <= (header_len as u64) + 2); |
| 394 | |
| 395 | Ok(RealAudioInfo { |
| 396 | fcc: fcc, sample_rate: 8000, sample_size: 16, channels: 1, channel_mask: 0, |
| 397 | granularity: granularity, bytes_per_minute: bytes_per_minute, |
| 398 | total_bytes: total_bytes, edata_size: 0, |
| 399 | ileave_info: None, |
| 400 | }) |
| 401 | } |
| 402 | |
| 403 | #[allow(unused_variables)] |
| 404 | fn parse_aformat4(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> { |
| 405 | let start = src.tell(); |
| 406 | src.read_skip(2)?; // zeroes |
| 407 | let id = src.read_u32be()?; |
| 408 | validate!(id == mktag!(b".ra4")); |
| 409 | let data_size = src.read_u32be()?; |
| 410 | let _ver4 = src.read_u16be()?; // should be 4 |
| 411 | let header_size = src.read_u32be()?; |
| 412 | let _flavor = src.read_u16be()?; |
| 413 | let granularity = src.read_u32be()?; |
| 414 | let total_bytes = src.read_u32be()?; |
| 415 | let bytes_per_minute = src.read_u32be()?; |
| 416 | let _bytes_per_minute2 = src.read_u32be()?; |
| 417 | let ileave_factor = src.read_u16be()?; |
| 418 | let ileave_block_size = src.read_u16be()?; |
| 419 | let _user_data = src.read_u16be()?; |
| 420 | let sample_rate = src.read_u32be()?; |
| 421 | let sample_size = src.read_u32be()?; |
| 422 | let channels = src.read_u16be()?; |
| 423 | let interleaver_id_len = src.read_byte()?; |
| 424 | validate!(interleaver_id_len == 4); |
| 425 | let interleaver_id = src.read_u32be()?; |
| 426 | let fcc_len = src.read_byte()?; |
| 427 | validate!(fcc_len == 4); |
| 428 | let fcc = src.read_u32be()?; |
| 429 | let is_interleaved = src.read_byte()?; |
| 430 | let _can_copy = src.read_byte()?; |
| 431 | let _stream_type = src.read_byte()?; |
| 432 | |
| 433 | skip_ra_metadata(src)?; |
| 434 | |
| 435 | let end = src.tell(); |
| 436 | validate!(end - start <= (header_size as u64) + 10); |
| 437 | |
| 438 | let ileave_info = if is_interleaved != 0 { |
| 439 | Some(InterleaveInfo { |
| 440 | id: interleaver_id, factor: ileave_factor, block_size: ileave_block_size, frame_size: 0, |
| 441 | }) |
| 442 | } else { |
| 443 | None |
| 444 | }; |
| 445 | |
| 446 | Ok(RealAudioInfo { |
| 447 | fcc: fcc, sample_rate: sample_rate, sample_size: sample_size as u16, channels: channels, channel_mask: 0, |
| 448 | granularity: granularity, bytes_per_minute: bytes_per_minute, |
| 449 | total_bytes: total_bytes & 0xFFFFFF, edata_size: 0, |
| 450 | ileave_info: ileave_info, |
| 451 | }) |
| 452 | } |
| 453 | |
| 454 | #[allow(unused_variables)] |
| 455 | fn parse_aformat5(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> { |
| 456 | let start = src.tell(); |
| 457 | src.read_skip(2)?; // zeroes |
| 458 | let id = src.read_u32be()?; |
| 459 | validate!(id == mktag!(b".ra5")); |
| 460 | let data_size = src.read_u32be()?; |
| 461 | let _ver5 = src.read_u16be()?; // should be 5 |
| 462 | let header_size = src.read_u32be()?; |
| 463 | let _flavor = src.read_u16be()?; |
| 464 | let granularity = src.read_u32be()?; |
| 465 | let total_bytes = src.read_u32be()?; |
| 466 | let bytes_per_minute = src.read_u32be()?; |
| 467 | let _bytes_per_minute2 = src.read_u32be()?; |
| 468 | let ileave_factor = src.read_u16be()?; |
| 469 | let ileave_block_size = src.read_u16be()?; |
| 470 | let frame_size = src.read_u16be()?; |
| 471 | let user_data = src.read_u32be()?; |
| 472 | let _sample_rate1 = src.read_u16be()?; |
| 473 | let sample_rate = src.read_u32be()?; |
| 474 | let sample_size = src.read_u32be()?; |
| 475 | let channels = src.read_u16be()?; |
| 476 | let interleaver_id = src.read_u32be()?; |
| 477 | let fcc = src.read_u32be()?; |
| 478 | let is_interleaved = src.read_byte()?; |
| 479 | let _can_copy = src.read_byte()?; |
| 480 | let _stream_type = src.read_byte()?; |
| 481 | let has_ileave_pattern = src.read_byte()?; |
| 482 | if has_ileave_pattern != 0 { |
| 483 | unimplemented!("ra5 interleave pattern"); |
| 484 | } |
| 485 | let edata_size = src.read_u32be()?; |
| 486 | |
| 487 | let end = src.tell(); |
| 488 | validate!(end - start <= (header_size as u64) + 10); |
| 489 | src.read_skip((end as usize) - (header_size as usize))?; |
| 490 | |
| 491 | let ileave_info = if is_interleaved != 0 { |
| 492 | Some(InterleaveInfo { |
| 493 | id: interleaver_id, factor: ileave_factor, block_size: ileave_block_size, frame_size: frame_size, |
| 494 | }) |
| 495 | } else { |
| 496 | None |
| 497 | }; |
| 498 | |
| 499 | Ok(RealAudioInfo { |
| 500 | fcc: fcc, sample_rate: sample_rate, sample_size: sample_size as u16, channels: channels, channel_mask: 0, |
| 501 | granularity: granularity, bytes_per_minute: bytes_per_minute, |
| 502 | total_bytes: total_bytes & 0xFFFFFF, edata_size: edata_size, |
| 503 | ileave_info: ileave_info, |
| 504 | }) |
| 505 | } |
| 506 | |
| 507 | const RMVB_HDR_SIZE: u32 = 18; |
| 508 | const RMVB_PROP_SIZE: u32 = 50; |
| 509 | const KEYFRAME_FLAG: u8 = 0x02; |
| 510 | |
| 511 | impl<'a> RealMediaDemuxer<'a> { |
| 512 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 513 | RealMediaDemuxer { |
| 514 | src: io, |
| 515 | data_pos: 0, |
| 516 | num_packets: 0, |
| 517 | cur_packet: 0, |
| 518 | streams: Vec::new(), |
| 519 | str_ids: Vec::new(), |
| 520 | queued_pkts: Vec::new(), |
| 521 | slice_buf: Vec::new(), |
| 522 | } |
| 523 | } |
| 524 | #[allow(unused_variables)] |
| 525 | fn read_header(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
| 526 | let (id, size, ver) = read_chunk(self.src)?; |
| 527 | validate!(id == mktag!(b".RMF")); |
| 528 | validate!(size >= RMVB_HDR_SIZE); |
| 529 | let fver = self.src.read_u32be()?; |
| 530 | validate!(fver <= 1); |
| 531 | let num_hdr = self.src.read_u32be()? as usize; |
| 532 | validate!(num_hdr >= 1); |
| 533 | if size > RMVB_HDR_SIZE { |
| 534 | self.src.read_skip((size - RMVB_HDR_SIZE) as usize)?; |
| 535 | } |
| 536 | |
| 537 | let (id, size, ver) = read_chunk(self.src)?; |
| 538 | validate!(size >= RMVB_PROP_SIZE); |
| 539 | validate!(ver == 0); |
| 540 | let maxbr = self.src.read_u32be()?; |
| 541 | let avgbr = self.src.read_u32be()?; |
| 542 | let maxps = self.src.read_u32be()?; |
| 543 | let avgps = self.src.read_u32be()?; |
| 544 | let num_pkt = self.src.read_u32be()? as usize; |
| 545 | let duration = self.src.read_u32be()?; |
| 546 | let preroll = self.src.read_u32be()?; |
| 547 | let idx_off = self.src.read_u32be()?; |
| 548 | let data_off = self.src.read_u32be()?; |
| 549 | let num_streams = self.src.read_u16be()? as usize; |
| 550 | let flags = self.src.read_u16be()?; |
| 551 | if size > RMVB_PROP_SIZE { |
| 552 | self.src.read_skip((size - RMVB_PROP_SIZE) as usize)?; |
| 553 | } |
| 554 | |
| 555 | for _ in 0..num_hdr { |
| 556 | if self.src.is_eof() { |
| 557 | //warn maybe? |
| 558 | break; |
| 559 | } |
| 560 | let res = self.parse_chunk(strmgr); |
| 561 | match res { |
| 562 | Ok(last) => { if last { break; } }, |
| 563 | Err(DemuxerError::IOError) => { break; }, |
| 564 | Err(etype) => { return Err(etype); }, |
| 565 | }; |
| 566 | } |
| 567 | //println!("now @ {:X} / {}", self.src.tell(), self.data_pos); |
| 568 | validate!(self.data_pos > 0); |
| 569 | self.src.seek(SeekFrom::Start(self.data_pos))?; |
| 570 | let num_packets = self.src.read_u32be()?; |
| 571 | let next_data_hdr = self.src.read_u32be()?; |
| 572 | self.num_packets = num_packets; |
| 573 | self.cur_packet = 0; |
| 574 | Ok(()) |
| 575 | } |
| 576 | fn parse_chunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<bool> { |
| 577 | let (id, size, ver) = read_chunk(self.src)?; |
| 578 | let end_pos = self.src.tell() - 10 + (size as u64); |
| 579 | |
| 580 | validate!(ver == 0); |
| 581 | if id == mktag!(b"CONT") { self.parse_content_desc()?; } |
| 582 | else if id == mktag!(b"MDPR") { self.parse_mdpr(strmgr)?; } |
| 583 | else if id == mktag!(b"DATA") { if self.data_pos == 0 { self.data_pos = self.src.tell(); } } |
| 584 | else if id == mktag!(b"INDX") { /* do nothing for now */ } |
| 585 | else if id == 0 { return Ok(true); } |
| 586 | else { println!("unknown chunk type {:08X}", id); } |
| 587 | |
| 588 | let cpos = self.src.tell(); |
| 589 | if cpos < end_pos { |
| 590 | self.src.read_skip((end_pos - cpos) as usize)?; |
| 591 | } |
| 592 | Ok(false) |
| 593 | } |
| 594 | #[allow(unused_variables)] |
| 595 | fn parse_content_desc(&mut self) -> DemuxerResult<()> { |
| 596 | let title_len = self.src.read_u16be()? as usize; |
| 597 | self.src.read_skip(title_len)?; |
| 598 | let author_len = self.src.read_u16be()? as usize; |
| 599 | self.src.read_skip(author_len)?; |
| 600 | let copywrong_len = self.src.read_u16be()? as usize; |
| 601 | self.src.read_skip(copywrong_len)?; |
| 602 | let comment_len = self.src.read_u16be()? as usize; |
| 603 | self.src.read_skip(comment_len)?; |
| 604 | Ok(()) |
| 605 | } |
| 606 | #[allow(unused_variables)] |
| 607 | fn parse_mdpr(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
| 608 | let stream_no = self.src.read_u16be()?; |
| 609 | //todo check stream_no for duplicates |
| 610 | let maxbr = self.src.read_u32be()?; |
| 611 | let avgbr = self.src.read_u32be()?; |
| 612 | let maxps = self.src.read_u32be()?; |
| 613 | let avgps = self.src.read_u32be()?; |
| 614 | let start = self.src.read_u32be()?; |
| 615 | let preroll = self.src.read_u32be()?; |
| 616 | let duration = self.src.read_u32be()?; |
| 617 | let sname_size = self.src.read_byte()? as usize; |
| 618 | let sname = read_string_size(self.src, sname_size)?; |
| 619 | //println!("str #{} sname = {} pkts {}/{} start {} preroll {}", stream_no, sname, maxps, avgps, start, preroll); |
| 620 | let mime_size = self.src.read_byte()? as usize; |
| 621 | let mime = read_string_size(self.src, mime_size)?; |
| 622 | //println!("mime = {}", mime); |
| 623 | let edata_size = self.src.read_u32be()? as usize; |
| 624 | let edata: Option<Vec<u8>> = if edata_size == 0 { None } else { |
| 625 | let mut edvec: Vec<u8> = Vec::with_capacity(edata_size); |
| 626 | edvec.resize(edata_size, 0); |
| 627 | self.src.read_buf(&mut edvec)?; |
| 628 | Some(edvec) |
| 629 | }; |
| 630 | self.str_ids.push(stream_no); |
| 631 | if edata_size > 8 { |
| 632 | if let Some(edata_) = edata { |
| 633 | let mut mr = MemoryReader::new_read(edata_.as_slice()); |
| 634 | let mut src = ByteReader::new(&mut mr); |
| 635 | |
| 636 | let tag = src.read_u32be()?; |
| 637 | let tag2 = src.peek_u32be()?; |
| 638 | //println!("tag1 {:X} tag2 {:X}", tag, tag2); |
| 639 | if tag == mktag!('.', 'r', 'a', 0xFD) { |
| 640 | let ver = src.read_u16be()?; |
| 641 | let ainfo = match ver { |
| 642 | 3 => { |
| 643 | parse_aformat3(&mut src)? |
| 644 | }, |
| 645 | 4 => { |
| 646 | parse_aformat4(&mut src)? |
| 647 | }, |
| 648 | 5 => { |
| 649 | parse_aformat5(&mut src)? |
| 650 | }, |
| 651 | _ => { |
| 652 | println!("unknown version {}", ver); |
| 653 | return Err(DemuxerError::InvalidData); |
| 654 | }, |
| 655 | }; |
| 656 | println!(" got ainfo {:?}", ainfo); |
| 657 | let cname = find_codec_name(RM_AUDIO_CODEC_REGISTER, ainfo.fcc); |
| 658 | let srate = ainfo.sample_rate; |
| 659 | let soniton = NASoniton::new(ainfo.sample_size as u8, SONITON_FLAG_SIGNED); |
| 660 | let ahdr = NAAudioInfo::new(srate, ainfo.channels as u8, soniton, 1); |
| 661 | let extradata = if ainfo.edata_size == 0 { |
| 662 | None |
| 663 | } else { |
| 664 | let eslice = &edata_[(src.tell() as usize)..]; |
| 665 | Some(eslice.to_vec()) |
| 666 | }; |
| 667 | let nainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), extradata); |
| 668 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, stream_no as u32, nainfo, 1, srate)); |
| 669 | if res.is_none() { return Err(MemoryError); } |
| 670 | |
| 671 | let astr = RMAudioStream::new(ainfo.ileave_info); |
| 672 | self.streams.push(RMStreamType::Audio(astr)); |
| 673 | } else if ((tag2 == mktag!('V', 'I', 'D', 'O')) || (tag2 == mktag!('I', 'M', 'A', 'G'))) && ((tag as usize) <= edata_size) { |
| 674 | src.read_skip(4)?; |
| 675 | let fcc = src.read_u32be()?; |
| 676 | let width = src.read_u16be()? as usize; |
| 677 | let height = src.read_u16be()? as usize; |
| 678 | let bpp = src.read_u16be()?; |
| 679 | let pad_w = src.read_u16be()?; |
| 680 | let pad_h = src.read_u16be()?; |
| 681 | let fps; |
| 682 | if tag2 == mktag!('V', 'I', 'D', 'O') { |
| 683 | fps = src.read_u32be()?; |
| 684 | } else { |
| 685 | fps = 0x10000; |
| 686 | } |
| 687 | let extradata: Option<Vec<u8>>; |
| 688 | if src.left() > 0 { |
| 689 | let eslice = &edata_[(src.tell() as usize)..]; |
| 690 | extradata = Some(eslice.to_vec()); |
| 691 | } else { |
| 692 | extradata = None; |
| 693 | } |
| 694 | let cname = find_codec_name(RM_VIDEO_CODEC_REGISTER, fcc); |
| 695 | |
| 696 | let vhdr = NAVideoInfo::new(width, height, false, RGB24_FORMAT); |
| 697 | let vinfo = NACodecInfo::new(cname, NACodecTypeInfo::Video(vhdr), extradata); |
| 698 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, stream_no as u32, vinfo, 0x10000, fps)); |
| 699 | if res.is_none() { return Err(DemuxerError::MemoryError); } |
| 700 | |
| 701 | let vstr = RMVideoStream::new(); |
| 702 | self.streams.push(RMStreamType::Video(vstr)); |
| 703 | } else if tag == mktag!(b"LSD:") { |
| 704 | let extradata = Some(edata_.to_vec()); |
| 705 | |
| 706 | src.read_skip(4)?; //version |
| 707 | let channels = src.read_u16be()?; |
| 708 | let samp_size = src.read_u16be()?; |
| 709 | let sample_rate = src.read_u32be()?; |
| 710 | |
| 711 | println!("LSD sr {}, {} ch", sample_rate, channels); |
| 712 | let soniton = NASoniton::new(samp_size as u8, SONITON_FLAG_SIGNED); |
| 713 | let ahdr = NAAudioInfo::new(sample_rate, channels as u8, soniton, 1); |
| 714 | let nainfo = NACodecInfo::new("ralf", NACodecTypeInfo::Audio(ahdr), extradata); |
| 715 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, stream_no as u32, nainfo, 1, sample_rate)); |
| 716 | if res.is_none() { return Err(MemoryError); } |
| 717 | let astr = RMAudioStream::new(None); |
| 718 | self.streams.push(RMStreamType::Audio(astr)); |
| 719 | } else { |
| 720 | self.streams.push(RMStreamType::Logical); |
| 721 | } |
| 722 | } |
| 723 | } else { |
| 724 | self.streams.push(RMStreamType::Unknown); |
| 725 | } |
| 726 | |
| 727 | Ok(()) |
| 728 | } |
| 729 | /*#[allow(unused_variables)] |
| 730 | fn read_pkt_header(&mut self) -> DemuxerResult<()> { |
| 731 | let ver = self.src.read_u16be()?; |
| 732 | validate!(ver <= 1); |
| 733 | let str_no = self.src.read_u16be()?; |
| 734 | let timestamp = self.src.read_u32be()?; |
| 735 | if ver == 0 { |
| 736 | let pkt_group = self.src.read_byte()?; |
| 737 | let pkt_flags = self.src.read_byte()?; |
| 738 | } else { |
| 739 | let asm_rule = self.src.read_u16be()?; |
| 740 | let asm_flags = self.src.read_byte()?; |
| 741 | } |
| 742 | Ok(()) |
| 743 | }*/ |
| 744 | } |
| 745 | |
| 746 | fn read_string(src: &mut ByteReader) -> DemuxerResult<String> { |
| 747 | let mut vec: Vec<u8> = Vec::new(); |
| 748 | loop { |
| 749 | let c = src.read_byte()?; |
| 750 | if c == 0 { break; } |
| 751 | vec.push(c); |
| 752 | } |
| 753 | let str = String::from_utf8(vec); |
| 754 | if str.is_ok() { |
| 755 | Ok(str.unwrap()) |
| 756 | } else { |
| 757 | Ok(String::new()) |
| 758 | } |
| 759 | } |
| 760 | |
| 761 | fn read_string_size(src: &mut ByteReader, size: usize) -> DemuxerResult<String> { |
| 762 | let mut vec: Vec<u8> = Vec::new(); |
| 763 | for _ in 0..size { |
| 764 | let c = src.read_byte()?; |
| 765 | vec.push(c); |
| 766 | } |
| 767 | let str = String::from_utf8(vec); |
| 768 | if str.is_ok() { |
| 769 | Ok(str.unwrap()) |
| 770 | } else { |
| 771 | Ok(String::new()) |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | #[allow(dead_code)] |
| 776 | #[allow(unused_variables)] |
| 777 | fn parse_rm_stream(io: &mut ByteReader) -> DemuxerResult<NAStream> { |
| 778 | let mimetype = read_string(io)?; |
| 779 | let strname = read_string(io)?; |
| 780 | let strnum = io.read_u32le()?; |
| 781 | let maxbr = io.read_u32le()?; |
| 782 | let avgbr = io.read_u32le()?; |
| 783 | let maxsize = io.read_u32le()?; |
| 784 | let avgsize = io.read_u32le()?; |
| 785 | let duration = io.read_u32le()?; |
| 786 | let preroll = io.read_u32le()?; |
| 787 | let start = io.read_u32le()?; |
| 788 | let edatalen = io.read_u32le()? as usize; |
| 789 | let mut edata: Vec<u8> = Vec::with_capacity(edatalen); |
| 790 | edata.resize(edatalen, 0); |
| 791 | io.read_buf(&mut edata)?; |
| 792 | let numprops = io.read_u32le()? as usize; |
| 793 | //read properties |
| 794 | unimplemented!(); |
| 795 | } |
| 796 | |
| 797 | #[allow(dead_code)] |
| 798 | #[allow(unused_variables)] |
| 799 | fn read_ra_vbr_stream(io: &mut ByteReader) -> DemuxerResult<NAPacket> { |
| 800 | let hdrsizesize = io.read_u16le()?; |
| 801 | let num_entries = (hdrsizesize / 16) as usize; |
| 802 | let mut sizes: Vec<usize> = Vec::with_capacity(num_entries); |
| 803 | for _ in 0..num_entries { |
| 804 | let sz = io.read_u16le()? as usize; |
| 805 | sizes.push(sz); |
| 806 | } |
| 807 | for i in 0..num_entries { |
| 808 | //read packet of sizes[i] |
| 809 | } |
| 810 | unimplemented!(); |
| 811 | } |
| 812 | |
| 813 | //todo interleavers |
| 814 | |
| 815 | //todo opaque data |
| 816 | |
| 817 | |
| 818 | static RM_VIDEO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[ |
| 819 | (b"RV10", "realvideo1"), |
| 820 | (b"RV20", "realvideo2"), |
| 821 | (b"RVTR", "realvideo2"), |
| 822 | (b"RV30", "realvideo3"), |
| 823 | (b"RV40", "realvideo4"), |
| 824 | (b"CLV1", "clearvideo_rm"), |
| 825 | ]; |
| 826 | |
| 827 | #[allow(dead_code)] |
| 828 | static RM_AUDIO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[ |
| 829 | (b"lpcJ", "ra14.4"), |
| 830 | (b"28_8", "ra28.8"), |
| 831 | (b"cook", "cook"), |
| 832 | (b"dnet", "ac3"), |
| 833 | (b"sipr", "sipro"), |
| 834 | (b"atrc", "atrac3"), |
| 835 | (b"LSD:", "ralf"), |
| 836 | (b"raac", "aac"), |
| 837 | (b"racp", "aac"), |
| 838 | ]; |
| 839 | |
| 840 | pub struct RealMediaDemuxerCreator { } |
| 841 | |
| 842 | impl DemuxerCreator for RealMediaDemuxerCreator { |
| 843 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> { |
| 844 | Box::new(RealMediaDemuxer::new(br)) |
| 845 | } |
| 846 | fn get_name(&self) -> &'static str { "realmedia" } |
| 847 | } |
| 848 | |
| 849 | #[cfg(test)] |
| 850 | mod test { |
| 851 | use super::*; |
| 852 | use std::fs::File; |
| 853 | |
| 854 | #[test] |
| 855 | fn test_rm_demux() { |
| 856 | let mut file = |
| 857 | File::open("assets/RV/rv10_dnet_640x352_realvideo_encoder_4.0.rm").unwrap(); |
| 858 | // File::open("assets/RV/rv20_cook_640x352_realproducer_plus_8.51.rm").unwrap(); |
| 859 | // File::open("assets/RV/rv20_svt_atrc_640x352_realproducer_plus_8.51.rm").unwrap(); |
| 860 | // File::open("assets/RV/rv30_atrc_384x208_realproducer_plus_8.51.rm").unwrap(); |
| 861 | // File::open("assets/RV/rv30_chroma_drift.rm").unwrap(); |
| 862 | // File::open("assets/RV/rv30_weighted_mc.rm").unwrap(); |
| 863 | // File::open("assets/RV/rv40_weighted_mc.rmvb").unwrap(); |
| 864 | // File::open("assets/RV/rv40_weighted_mc_2.rmvb").unwrap(); |
| 865 | // File::open("assets/RV/clv1_sipr_384x208_realvideo_encoder_4.0.rm").unwrap(); |
| 866 | // File::open("assets/RV/luckynight.rmvb").unwrap(); |
| 867 | // File::open("assets/RV/rv40_ralf.rmvb").unwrap(); |
| 868 | let mut fr = FileReader::new_read(&mut file); |
| 869 | let mut br = ByteReader::new(&mut fr); |
| 870 | let mut dmx = RealMediaDemuxer::new(&mut br); |
| 871 | let mut sm = StreamManager::new(); |
| 872 | dmx.open(&mut sm).unwrap(); |
| 873 | |
| 874 | loop { |
| 875 | let pktres = dmx.get_frame(&mut sm); |
| 876 | if let Err(e) = pktres { |
| 877 | if e == DemuxerError::EOF { break; } |
| 878 | panic!("error"); |
| 879 | } |
| 880 | let pkt = pktres.unwrap(); |
| 881 | println!("Got {}", pkt); |
| 882 | } |
| 883 | //panic!("the end"); |
| 884 | } |
| 885 | } |