| 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 | const RM_SIPRO_BLOCK_SIZES: [usize; 4] = [ 29, 19, 37, 20 ]; |
| 19 | const RM_SIPRO_SWAPS: [[u8; 2]; 38] = [ |
| 20 | [ 0, 63 ], [ 1, 22 ], [ 2, 44 ], [ 3, 90 ], |
| 21 | [ 5, 81 ], [ 7, 31 ], [ 8, 86 ], [ 9, 58 ], |
| 22 | [ 10, 36 ], [ 12, 68 ], [ 13, 39 ], [ 14, 73 ], |
| 23 | [ 15, 53 ], [ 16, 69 ], [ 17, 57 ], [ 19, 88 ], |
| 24 | [ 20, 34 ], [ 21, 71 ], [ 24, 46 ], [ 25, 94 ], |
| 25 | [ 26, 54 ], [ 28, 75 ], [ 29, 50 ], [ 32, 70 ], |
| 26 | [ 33, 92 ], [ 35, 74 ], [ 38, 85 ], [ 40, 56 ], |
| 27 | [ 42, 87 ], [ 43, 65 ], [ 45, 59 ], [ 48, 79 ], |
| 28 | [ 49, 93 ], [ 51, 89 ], [ 55, 95 ], [ 61, 76 ], |
| 29 | [ 67, 83 ], [ 77, 80 ] |
| 30 | ]; |
| 31 | |
| 32 | struct RMVideoStream { |
| 33 | frame: Vec<u8>, |
| 34 | hdr_size: usize, |
| 35 | frame_size: usize, |
| 36 | frame_pos: usize, |
| 37 | } |
| 38 | |
| 39 | impl RMVideoStream { |
| 40 | fn new() -> Self { |
| 41 | RMVideoStream { |
| 42 | frame: Vec::new(), |
| 43 | hdr_size: 0, |
| 44 | frame_size: 0, |
| 45 | frame_pos: 0, |
| 46 | } |
| 47 | } |
| 48 | fn flush(&mut self) { |
| 49 | self.frame.truncate(0); |
| 50 | self.frame_size = 0; |
| 51 | self.frame_pos = 0; |
| 52 | } |
| 53 | fn start_slice(&mut self, num_slices: usize, frame_size: usize, data: &[u8]) { |
| 54 | self.hdr_size = num_slices * 8 + 1; |
| 55 | self.frame.resize(frame_size + self.hdr_size, 0); |
| 56 | self.frame[0] = (num_slices - 1) as u8; |
| 57 | self.frame_pos = 0; |
| 58 | self.add_slice(1, data); |
| 59 | } |
| 60 | fn add_slice(&mut self, slice_no: usize, data: &[u8]) { |
| 61 | self.write_slice_info(slice_no); |
| 62 | let dslice = &mut self.frame[self.hdr_size + self.frame_pos..][..data.len()]; |
| 63 | dslice.copy_from_slice(data); |
| 64 | self.frame_pos += data.len(); |
| 65 | } |
| 66 | fn write_slice_info(&mut self, slice_no: usize) { |
| 67 | let off = 1 + (slice_no - 1) * 8; |
| 68 | self.frame[off + 0] = 0; |
| 69 | self.frame[off + 1] = 0; |
| 70 | self.frame[off + 2] = 0; |
| 71 | self.frame[off + 3] = 1; |
| 72 | self.frame[off + 4] = (self.frame_pos >> 24) as u8; |
| 73 | self.frame[off + 5] = (self.frame_pos >> 16) as u8; |
| 74 | self.frame[off + 6] = (self.frame_pos >> 8) as u8; |
| 75 | self.frame[off + 7] = (self.frame_pos >> 0) as u8; |
| 76 | } |
| 77 | fn get_frame_data(&mut self) -> Vec<u8> { |
| 78 | let mut v: Vec<u8> = Vec::new(); |
| 79 | mem::swap(&mut v, &mut self.frame); |
| 80 | self.flush(); |
| 81 | v |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | #[allow(dead_code)] |
| 86 | #[derive(Clone,Copy,PartialEq)] |
| 87 | enum Deinterleaver { |
| 88 | None, |
| 89 | RA28_8, |
| 90 | Generic, |
| 91 | Sipro, |
| 92 | VBR, |
| 93 | } |
| 94 | |
| 95 | #[allow(dead_code)] |
| 96 | struct RMAudioStream { |
| 97 | deint: Deinterleaver, |
| 98 | iinfo: Option<InterleaveInfo>, |
| 99 | buf: Vec<u8>, |
| 100 | sub_packet: usize, |
| 101 | } |
| 102 | |
| 103 | const RM_ILEAVE_INT0: u32 = mktag!(b"Int0"); |
| 104 | const RM_ILEAVE_INT4: u32 = mktag!(b"Int4"); |
| 105 | const RM_ILEAVE_GENR: u32 = mktag!(b"genr"); |
| 106 | const RM_ILEAVE_SIPR: u32 = mktag!(b"sipr"); |
| 107 | const RM_ILEAVE_VBRF: u32 = mktag!(b"vbrf"); |
| 108 | const RM_ILEAVE_VBRS: u32 = mktag!(b"vbrs"); |
| 109 | |
| 110 | impl RMAudioStream { |
| 111 | fn new(iinfo: Option<InterleaveInfo>) -> Self { |
| 112 | let deint; |
| 113 | let mut buf: Vec<u8>; |
| 114 | if let Some(info) = iinfo { |
| 115 | deint = match info.id { |
| 116 | RM_ILEAVE_INT0 => Deinterleaver::None, |
| 117 | RM_ILEAVE_INT4 => Deinterleaver::RA28_8, |
| 118 | RM_ILEAVE_GENR => Deinterleaver::Generic, |
| 119 | RM_ILEAVE_SIPR => Deinterleaver::Sipro, |
| 120 | RM_ILEAVE_VBRF => Deinterleaver::VBR, |
| 121 | RM_ILEAVE_VBRS => Deinterleaver::VBR, |
| 122 | _ => {println!("unknown deint {:X}", info.id); Deinterleaver::None }, |
| 123 | }; |
| 124 | match deint { |
| 125 | Deinterleaver::None => { buf = Vec::new(); }, |
| 126 | Deinterleaver::RA28_8 | |
| 127 | Deinterleaver::Generic | |
| 128 | Deinterleaver::Sipro => { |
| 129 | let bsize = (info.frame_size as usize) * (info.factor as usize); |
| 130 | buf = Vec::with_capacity(bsize); |
| 131 | buf.resize(bsize, 0u8); |
| 132 | }, |
| 133 | Deinterleaver::VBR => { |
| 134 | buf = Vec::new(); |
| 135 | }, |
| 136 | }; |
| 137 | } else { |
| 138 | deint = Deinterleaver::None; |
| 139 | buf = Vec::new(); |
| 140 | } |
| 141 | RMAudioStream { deint: deint, iinfo: iinfo, buf: buf, sub_packet: 0 } |
| 142 | } |
| 143 | fn read_apackets(&mut self, queued_packets: &mut Vec<NAPacket>, src: &mut ByteReader, stream: Rc<NAStream>, ts: u32, keyframe: bool, payload_size: usize) -> DemuxerResult<NAPacket> { |
| 144 | let (tb_num, tb_den) = stream.get_timebase(); |
| 145 | let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den); |
| 146 | |
| 147 | if keyframe { |
| 148 | self.sub_packet = 0; |
| 149 | } |
| 150 | match self.deint { |
| 151 | Deinterleaver::None => { return src.read_packet(stream, ts, keyframe, payload_size); }, |
| 152 | Deinterleaver::RA28_8 => { |
| 153 | let iinfo = self.iinfo.unwrap(); |
| 154 | let factor = iinfo.factor as usize; |
| 155 | let halffact = factor >> 1; |
| 156 | let fsize = iinfo.frame_size as usize; |
| 157 | let bsize = iinfo.block_size as usize; |
| 158 | let ppos = self.sub_packet; |
| 159 | for sb in 0..halffact { |
| 160 | let mut dst = &mut self.buf[sb * 2 * fsize + ppos * bsize..][..bsize]; |
| 161 | src.read_buf(&mut dst)?; |
| 162 | } |
| 163 | self.sub_packet += 1; |
| 164 | if self.sub_packet == factor { |
| 165 | self.sub_packet = 0; |
| 166 | return Ok(NAPacket::new(stream, ts, true, self.buf.clone())); |
| 167 | } else { |
| 168 | return Err(DemuxerError::TryAgain); |
| 169 | } |
| 170 | }, |
| 171 | Deinterleaver::Generic => { |
| 172 | let iinfo = self.iinfo.unwrap(); |
| 173 | let factor = iinfo.factor as usize; |
| 174 | let fsize = iinfo.frame_size as usize; |
| 175 | let bsize = iinfo.block_size as usize; |
| 176 | let factor2 = fsize / bsize; |
| 177 | let ppos = self.sub_packet; |
| 178 | |
| 179 | for sb in 0..factor2 { |
| 180 | let sb_pos = factor * sb + ((factor + 1) >> 1) * (ppos & 1) + (ppos >> 1); |
| 181 | let mut dst = &mut self.buf[bsize * sb_pos..][..bsize]; |
| 182 | src.read_buf(&mut dst)?; |
| 183 | } |
| 184 | }, |
| 185 | Deinterleaver::Sipro => { |
| 186 | let iinfo = self.iinfo.unwrap(); |
| 187 | let fsize = iinfo.frame_size as usize; |
| 188 | let ppos = self.sub_packet; |
| 189 | |
| 190 | let mut dst = &mut self.buf[fsize * ppos..][..fsize]; |
| 191 | src.read_buf(&mut dst)?; |
| 192 | }, |
| 193 | Deinterleaver::VBR => { |
| 194 | validate!(payload_size >= 5); |
| 195 | let hdrsizesize = src.read_u16be()?; |
| 196 | let num_entries = (hdrsizesize / 16) as usize; |
| 197 | validate!(payload_size >= num_entries * 3 + 2); |
| 198 | let mut sizes: Vec<usize> = Vec::with_capacity(num_entries); |
| 199 | let mut tot_size = 0; |
| 200 | for _ in 0..num_entries { |
| 201 | let sz = src.read_u16be()? as usize; |
| 202 | tot_size += sz; |
| 203 | sizes.push(sz); |
| 204 | } |
| 205 | validate!(tot_size + num_entries * 2 + 2 == payload_size); |
| 206 | let pkt_ts = NATimeInfo::new(None, None, None, tb_num, tb_den); |
| 207 | let mut first = true; |
| 208 | for size in sizes.iter() { |
| 209 | let cur_ts = if first { ts } else { pkt_ts }; |
| 210 | first = false; |
| 211 | let pkt = src.read_packet(stream.clone(), cur_ts, true, *size)?; |
| 212 | queued_packets.push(pkt); |
| 213 | } |
| 214 | queued_packets.reverse(); |
| 215 | let pkt0 = queued_packets.pop().unwrap(); |
| 216 | return Ok(pkt0); |
| 217 | }, |
| 218 | }; |
| 219 | |
| 220 | let iinfo = self.iinfo.unwrap(); |
| 221 | let factor = iinfo.factor as usize; |
| 222 | let fsize = if iinfo.block_size != 0 { iinfo.block_size } else { iinfo.frame_size } as usize; |
| 223 | |
| 224 | self.sub_packet += 1; |
| 225 | if self.sub_packet < factor { |
| 226 | return Err(DemuxerError::TryAgain); |
| 227 | } |
| 228 | |
| 229 | self.sub_packet = 0; |
| 230 | |
| 231 | if self.deint == Deinterleaver::Sipro { |
| 232 | sipro_restore(&mut self.buf, factor, fsize); |
| 233 | } |
| 234 | |
| 235 | let mut frames_iter = self.buf.chunks(fsize); |
| 236 | let pkt0 = frames_iter.next().unwrap(); |
| 237 | |
| 238 | let pkt_ts = NATimeInfo::new(None, None, None, tb_num, tb_den); |
| 239 | for pkts in frames_iter { |
| 240 | let pkt = NAPacket::new(stream.clone(), pkt_ts, true, pkts.to_vec()); |
| 241 | queued_packets.push(pkt); |
| 242 | } |
| 243 | queued_packets.reverse(); |
| 244 | Ok(NAPacket::new(stream, ts, true, pkt0.to_vec())) |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | fn sipro_restore(buf: &mut [u8], factor: usize, fsize: usize) { |
| 249 | let stride = factor * fsize * 2 / 96; |
| 250 | for i in 0..38 { |
| 251 | let mut sidx = (RM_SIPRO_SWAPS[i][0] as usize) * stride; |
| 252 | let mut didx = (RM_SIPRO_SWAPS[i][1] as usize) * stride; |
| 253 | for _ in 0..stride { |
| 254 | let in0 = buf[sidx >> 1]; |
| 255 | let in1 = buf[didx >> 1]; |
| 256 | let nib0 = (in0 >> ((sidx & 1) * 4)) & 0xF; |
| 257 | let nib1 = (in1 >> ((didx & 1) * 4)) & 0xF; |
| 258 | |
| 259 | buf[didx >> 1] = (nib0 << (4 * (didx & 1))) | (in1 & (0xF << (4 * (!didx & 1)))); |
| 260 | buf[sidx >> 1] = (nib1 << (4 * (sidx & 1))) | (in0 & (0xF << (4 * (!sidx & 1)))); |
| 261 | |
| 262 | sidx += 1; |
| 263 | didx += 1; |
| 264 | } |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | struct SubstreamInfo { |
| 269 | id: u32, |
| 270 | map: Vec<u16>, |
| 271 | str_ids: Vec<u32>, |
| 272 | } |
| 273 | |
| 274 | struct MLTIMapper { |
| 275 | sub_info: Vec<SubstreamInfo>, |
| 276 | } |
| 277 | |
| 278 | impl MLTIMapper { |
| 279 | fn new() -> Self { |
| 280 | MLTIMapper { |
| 281 | sub_info: Vec::new(), |
| 282 | } |
| 283 | } |
| 284 | fn add_stream(&mut self, stream_no: u32) { |
| 285 | let ssinfo = SubstreamInfo { id: stream_no, map: Vec::new(), str_ids: Vec::new() }; |
| 286 | self.sub_info.push(ssinfo); |
| 287 | } |
| 288 | fn find_idx(&self, stream_no: u32) -> Option<usize> { |
| 289 | self.sub_info.iter().position(|x| x.id == stream_no) |
| 290 | } |
| 291 | fn add_map_rule(&mut self, stream_no: u32, map_ss: u16) { |
| 292 | let idx = self.find_idx(stream_no).unwrap(); |
| 293 | self.sub_info[idx].map.push(map_ss); |
| 294 | } |
| 295 | fn add_substream(&mut self, stream_no: u32, sstr_id: u32) { |
| 296 | let idx = self.find_idx(stream_no).unwrap(); |
| 297 | self.sub_info[idx].str_ids.push(sstr_id); |
| 298 | } |
| 299 | fn is_mlti_stream(&self, stream_no: u32) -> bool { |
| 300 | self.find_idx(stream_no).is_some() |
| 301 | } |
| 302 | fn find_substream(&self, stream_no: u32, grp: u16) -> Option<u32> { |
| 303 | if let Some(idx) = self.find_idx(stream_no) { |
| 304 | if (grp as usize) < self.sub_info[idx].map.len() { |
| 305 | let sub_id = self.sub_info[idx].map[grp as usize] as usize; |
| 306 | if sub_id < self.sub_info[idx].str_ids.len() { |
| 307 | return Some(self.sub_info[idx].str_ids[sub_id]); |
| 308 | } |
| 309 | } |
| 310 | } |
| 311 | None |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | enum RMStreamType { |
| 316 | Audio(RMAudioStream), |
| 317 | Video(RMVideoStream), |
| 318 | Logical, |
| 319 | Unknown, |
| 320 | } |
| 321 | |
| 322 | struct RealMediaDemuxer<'a> { |
| 323 | src: &'a mut ByteReader<'a>, |
| 324 | data_pos: u64, |
| 325 | next_data: u64, |
| 326 | data_ver: u16, |
| 327 | num_packets: u32, |
| 328 | cur_packet: u32, |
| 329 | |
| 330 | mlti_stream_no: u32, |
| 331 | mlti_mapper: MLTIMapper, |
| 332 | |
| 333 | streams: Vec<RMStreamType>, |
| 334 | str_ids: Vec<u32>, |
| 335 | |
| 336 | queued_pkts: Vec<NAPacket>, |
| 337 | slice_buf: Vec<u8>, |
| 338 | } |
| 339 | |
| 340 | fn find_codec_name(registry: &[(&[u8;4], &'static str)], fcc: u32) -> &'static str { |
| 341 | for &(fourcc, name) in registry { |
| 342 | if mktag!(fourcc) == fcc { return name; } |
| 343 | } |
| 344 | "unknown" |
| 345 | } |
| 346 | |
| 347 | fn read_14or30(src: &mut ByteReader) -> DemuxerResult<(bool, u32)> { |
| 348 | let tmp = src.read_u16be()?; |
| 349 | let flag = (tmp & 0x8000) != 0; |
| 350 | if (tmp & 0x4000) == 0x4000 { |
| 351 | Ok((flag, ((tmp & 0x3FFF) as u32))) |
| 352 | } else { |
| 353 | let val = ((tmp as u32) << 16) | (src.read_u16be()? as u32); |
| 354 | Ok((flag, val & 0x3FFFFFFF)) |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | fn read_video_buf(src: &mut ByteReader, stream: Rc<NAStream>, ts: u32, keyframe: bool, frame_size: usize) -> DemuxerResult<NAPacket> { |
| 359 | let size = (frame_size as usize) + 9; |
| 360 | let mut vec: Vec<u8> = Vec::with_capacity(size); |
| 361 | vec.resize(size, 0); |
| 362 | //v[0] = 0; // 1 slice |
| 363 | vec[4] = 1; |
| 364 | src.read_buf(&mut vec[9..])?; |
| 365 | |
| 366 | let (tb_num, tb_den) = stream.get_timebase(); |
| 367 | let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den); |
| 368 | Ok(NAPacket::new(stream, ts, keyframe, vec)) |
| 369 | } |
| 370 | |
| 371 | fn read_multiple_frame(src: &mut ByteReader, stream: Rc<NAStream>, keyframe: bool, skip_mtype: bool) -> DemuxerResult<NAPacket> { |
| 372 | if !skip_mtype { |
| 373 | let mtype = src.read_byte()?; |
| 374 | validate!(mtype == 0xC0); |
| 375 | } |
| 376 | let (_, frame_size) = read_14or30(src)?; |
| 377 | let (_, timestamp) = read_14or30(src)?; |
| 378 | let _seq_no = src.read_byte()?; |
| 379 | //println!(" multiple frame size {} ts {} seq {}", frame_size, timestamp, seq_no); |
| 380 | |
| 381 | read_video_buf(src, stream, timestamp, keyframe, frame_size as usize) |
| 382 | } |
| 383 | |
| 384 | impl<'a> DemuxCore<'a> for RealMediaDemuxer<'a> { |
| 385 | #[allow(unused_variables)] |
| 386 | fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
| 387 | self.read_header(strmgr)?; |
| 388 | Ok(()) |
| 389 | } |
| 390 | |
| 391 | #[allow(unused_variables)] |
| 392 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 393 | if !self.queued_pkts.is_empty() { |
| 394 | let pkt = self.queued_pkts.pop().unwrap(); |
| 395 | return Ok(pkt); |
| 396 | } |
| 397 | loop { |
| 398 | if self.cur_packet >= self.num_packets { |
| 399 | if (self.next_data != 0) && (self.next_data == self.src.tell()) { |
| 400 | let res = read_chunk(self.src); |
| 401 | if let Ok((id, size, ver)) = res { |
| 402 | self.data_pos = self.src.tell(); |
| 403 | self.data_ver = ver; |
| 404 | if self.parse_data_start().is_ok() { |
| 405 | continue; |
| 406 | } |
| 407 | } |
| 408 | } |
| 409 | return Err(DemuxerError::EOF); |
| 410 | } |
| 411 | |
| 412 | let pkt_start = self.src.tell(); |
| 413 | let ver = self.src.read_u16be()?; |
| 414 | validate!(ver <= 1); |
| 415 | let len = self.src.read_u16be()? as usize; |
| 416 | let str_no = self.src.read_u16be()? as u32; |
| 417 | let ts = self.src.read_u32be()?; |
| 418 | let pkt_grp; |
| 419 | let flags; |
| 420 | if ver == 0 { |
| 421 | pkt_grp = self.src.read_byte()? as u16; |
| 422 | flags = self.src.read_byte()?; |
| 423 | } else { |
| 424 | //asm_rule = self.src.read_u16be()?; |
| 425 | //asm_flags = self.src.read_byte()?; |
| 426 | self.src.read_skip(2)?; |
| 427 | pkt_grp = 0; |
| 428 | self.src.read_skip(1)?; |
| 429 | flags = 0; |
| 430 | } |
| 431 | let hdr_size = self.src.tell() - pkt_start; |
| 432 | //println!("packet @{:X} size {} for {} ts {} grp {} flags {:X}", pkt_start, len, str_no, ts, pkt_grp, flags); |
| 433 | self.cur_packet += 1; |
| 434 | |
| 435 | let payload_size = len - (hdr_size as usize); |
| 436 | |
| 437 | let stream_id; |
| 438 | if !self.mlti_mapper.is_mlti_stream(str_no as u32) { |
| 439 | stream_id = str_no as u32; |
| 440 | } else { |
| 441 | stream_id = self.mlti_mapper.find_substream(str_no as u32, pkt_grp).unwrap(); |
| 442 | } |
| 443 | let sr = self.str_ids.iter().position(|x| *x == stream_id); |
| 444 | if sr.is_none() { |
| 445 | //println!("stream {} not found", str_no); |
| 446 | self.src.read_skip(payload_size)?; |
| 447 | return Err(DemuxerError::InvalidData); |
| 448 | } |
| 449 | let str_id = sr.unwrap(); |
| 450 | |
| 451 | let streamres = strmgr.get_stream_by_id(stream_id); |
| 452 | if streamres.is_none() { |
| 453 | self.src.read_skip(payload_size)?; |
| 454 | continue; |
| 455 | } |
| 456 | let stream = streamres.unwrap(); |
| 457 | //println!(" stream {}", str_id); |
| 458 | if strmgr.is_ignored_id(stream_id) { |
| 459 | self.src.read_skip(payload_size)?; |
| 460 | continue; |
| 461 | } |
| 462 | //todo skip unwanted packet |
| 463 | let keyframe = (flags & KEYFRAME_FLAG) != 0; |
| 464 | |
| 465 | let result = match self.streams[str_id] { |
| 466 | RMStreamType::Video(ref mut vstr) => { |
| 467 | |
| 468 | let pos = self.src.tell(); |
| 469 | let b0 = self.src.read_byte()?; |
| 470 | match b0 >> 6 { |
| 471 | 0 => { // partial frame |
| 472 | let b1 = self.src.read_byte()?; |
| 473 | let hdr1 = ((b0 as u16) << 8) | (b1 as u16); |
| 474 | let num_pkts = ((hdr1 >> 7) & 0x7F) as usize; |
| 475 | let packet_num = hdr1 & 0x7F; |
| 476 | let (_, frame_size) = read_14or30(self.src)?; |
| 477 | let (_, off) = read_14or30(self.src)?; |
| 478 | let seq_no = self.src.read_byte()?; |
| 479 | //println!(" mode 0 pkt {}/{} off {}/{} seq {}", packet_num, num_pkts, off, frame_size, seq_no); |
| 480 | let hdr_skip = (self.src.tell() - pos) as usize; |
| 481 | |
| 482 | let slice_size = (payload_size - hdr_skip) as usize; |
| 483 | self.slice_buf.resize(slice_size, 0); |
| 484 | self.src.read_buf(self.slice_buf.as_mut_slice())?; |
| 485 | if packet_num == 1 { |
| 486 | vstr.start_slice(num_pkts, frame_size as usize, self.slice_buf.as_slice()); |
| 487 | } else { |
| 488 | vstr.add_slice(packet_num as usize, self.slice_buf.as_slice()); |
| 489 | } |
| 490 | if (packet_num as usize) < num_pkts { |
| 491 | continue; |
| 492 | } |
| 493 | //todo: check if full frame is received |
| 494 | let (tb_num, tb_den) = stream.get_timebase(); |
| 495 | let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den); |
| 496 | let pkt = NAPacket::new(stream, ts, keyframe, vstr.get_frame_data()); |
| 497 | Ok(pkt) |
| 498 | }, |
| 499 | 1 => { // whole frame |
| 500 | let seq_no = self.src.read_byte()?; |
| 501 | //println!(" mode 1 seq {}", seq_no); |
| 502 | read_video_buf(self.src, stream, ts, keyframe, payload_size - 2) |
| 503 | }, |
| 504 | 2 => { // last partial frame |
| 505 | let b1 = self.src.read_byte()?; |
| 506 | let hdr1 = ((b0 as u16) << 8) | (b1 as u16); |
| 507 | let num_pkts = ((hdr1 >> 7) & 0x7F) as usize; |
| 508 | let packet_num = hdr1 & 0x7F; |
| 509 | let (_, frame_size) = read_14or30(self.src)?; |
| 510 | let (_, tail_size) = read_14or30(self.src)?; |
| 511 | let seq_no = self.src.read_byte()?; |
| 512 | //println!(" mode 2 pkt {}/{} tail {}/{} seq {}", packet_num, num_pkts, tail_size, frame_size, seq_no); |
| 513 | self.slice_buf.resize(tail_size as usize, 0); |
| 514 | self.src.read_buf(self.slice_buf.as_mut_slice())?; |
| 515 | if packet_num == 1 && frame_size == tail_size { |
| 516 | vstr.start_slice(num_pkts, frame_size as usize, self.slice_buf.as_slice()); |
| 517 | } else { |
| 518 | vstr.add_slice(packet_num as usize, self.slice_buf.as_slice()); |
| 519 | } |
| 520 | |
| 521 | while self.src.tell() < pos + (payload_size as u64) { |
| 522 | let res = read_multiple_frame(self.src, stream.clone(), false, false); |
| 523 | if res.is_err() { break; } |
| 524 | self.queued_pkts.push(res.unwrap()); |
| 525 | } |
| 526 | self.queued_pkts.reverse(); |
| 527 | let (tb_num, tb_den) = stream.get_timebase(); |
| 528 | let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den); |
| 529 | let pkt = NAPacket::new(stream, ts, keyframe, vstr.get_frame_data()); |
| 530 | Ok(pkt) |
| 531 | }, |
| 532 | _ => { // multiple frames |
| 533 | //println!(" mode 3"); |
| 534 | let res = read_multiple_frame(self.src, stream.clone(), keyframe, true); |
| 535 | if res.is_err() { return res; } |
| 536 | while self.src.tell() < pos + (payload_size as u64) { |
| 537 | let res = read_multiple_frame(self.src, stream.clone(), false, false); |
| 538 | if res.is_err() { break; } |
| 539 | self.queued_pkts.push(res.unwrap()); |
| 540 | } |
| 541 | self.queued_pkts.reverse(); |
| 542 | res |
| 543 | }, |
| 544 | } |
| 545 | }, |
| 546 | RMStreamType::Audio(ref mut astr) => { |
| 547 | let ret = astr.read_apackets(&mut self.queued_pkts, &mut self.src, stream, ts, keyframe, payload_size); |
| 548 | if let Err(DemuxerError::TryAgain) = ret { |
| 549 | continue; |
| 550 | } |
| 551 | ret |
| 552 | }, |
| 553 | _ => { |
| 554 | // self.src.read_skip(payload_size)?; |
| 555 | Err(DemuxerError::InvalidData) |
| 556 | }, |
| 557 | }; |
| 558 | return result; |
| 559 | } |
| 560 | } |
| 561 | |
| 562 | #[allow(unused_variables)] |
| 563 | fn seek(&mut self, time: u64) -> DemuxerResult<()> { |
| 564 | Err(NotImplemented) |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | fn read_chunk(src: &mut ByteReader) -> DemuxerResult<(u32, u32, u16)> { |
| 569 | let id = src.read_u32be()?; |
| 570 | if id == 0 { return Ok((0, 0, 0)); } |
| 571 | let size = src.read_u32be()?; |
| 572 | if size == 0 { |
| 573 | let ver = src.read_u16be()?; |
| 574 | validate!(ver <= 2); |
| 575 | return Ok((id, 0x0FFFFFFF, ver)); |
| 576 | } |
| 577 | validate!(size >= 10); |
| 578 | let ver = src.read_u16be()?; |
| 579 | validate!(ver <= 2); |
| 580 | Ok((id, size, ver)) |
| 581 | } |
| 582 | |
| 583 | #[derive(Clone,Copy,Debug)] |
| 584 | struct InterleaveInfo { |
| 585 | id: u32, |
| 586 | factor: u16, |
| 587 | block_size: u16, |
| 588 | frame_size: u16, |
| 589 | } |
| 590 | |
| 591 | #[derive(Clone,Copy,Debug)] |
| 592 | struct RealAudioInfo { |
| 593 | fcc: u32, |
| 594 | sample_rate: u32, |
| 595 | sample_size: u16, |
| 596 | flavor: u16, |
| 597 | channels: u16, |
| 598 | channel_mask: u32, |
| 599 | granularity: u32, |
| 600 | bytes_per_minute: u32, |
| 601 | total_bytes: u32, |
| 602 | edata_size: u32, |
| 603 | ileave_info: Option<InterleaveInfo> |
| 604 | } |
| 605 | |
| 606 | fn skip_ra_metadata(src: &mut ByteReader) -> DemuxerResult<()> { |
| 607 | let title_len = src.read_byte()? as usize; |
| 608 | src.read_skip(title_len)?; |
| 609 | let author_len = src.read_byte()? as usize; |
| 610 | src.read_skip(author_len)?; |
| 611 | let copywrong_len = src.read_byte()? as usize; |
| 612 | src.read_skip(copywrong_len)?; |
| 613 | let comment_len = src.read_byte()? as usize; |
| 614 | src.read_skip(comment_len)?; |
| 615 | Ok(()) |
| 616 | } |
| 617 | |
| 618 | #[allow(unused_variables)] |
| 619 | fn parse_aformat3(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> { |
| 620 | let start = src.tell(); |
| 621 | let header_len = src.read_u16be()?; |
| 622 | validate!(header_len >= 24); |
| 623 | let flavor = src.read_u16be()?; |
| 624 | let granularity = src.read_u32be()?; |
| 625 | let bytes_per_minute = src.read_u32be()?; |
| 626 | let total_bytes = src.read_u32be()?; |
| 627 | |
| 628 | skip_ra_metadata(src)?; |
| 629 | |
| 630 | let _can_copy = src.read_byte()?; |
| 631 | let fcc_len = src.read_byte()?; |
| 632 | validate!(fcc_len == 4); |
| 633 | let fcc = src.read_u32be()?; |
| 634 | |
| 635 | let end = src.tell(); |
| 636 | validate!(end - start <= (header_len as u64) + 2); |
| 637 | |
| 638 | Ok(RealAudioInfo { |
| 639 | fcc: fcc, flavor: flavor, |
| 640 | sample_rate: 8000, sample_size: 16, channels: 1, channel_mask: 0, |
| 641 | granularity: granularity, bytes_per_minute: bytes_per_minute, |
| 642 | total_bytes: total_bytes, edata_size: 0, |
| 643 | ileave_info: None, |
| 644 | }) |
| 645 | } |
| 646 | |
| 647 | #[allow(unused_variables)] |
| 648 | fn parse_aformat4(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> { |
| 649 | let start = src.tell(); |
| 650 | src.read_skip(2)?; // zeroes |
| 651 | let id = src.read_u32be()?; |
| 652 | validate!(id == mktag!(b".ra4")); |
| 653 | let data_size = src.read_u32be()?; |
| 654 | let _ver4 = src.read_u16be()?; // should be 4 |
| 655 | let header_size = src.read_u32be()?; |
| 656 | let flavor = src.read_u16be()?; |
| 657 | let granularity = src.read_u32be()?; |
| 658 | let total_bytes = src.read_u32be()?; |
| 659 | let bytes_per_minute = src.read_u32be()?; |
| 660 | let _bytes_per_minute2 = src.read_u32be()?; |
| 661 | let ileave_factor = src.read_u16be()?; |
| 662 | let ileave_block_size = src.read_u16be()?; |
| 663 | let _user_data = src.read_u16be()?; |
| 664 | let sample_rate = src.read_u32be()?; |
| 665 | let sample_size = src.read_u32be()?; |
| 666 | let channels = src.read_u16be()?; |
| 667 | let interleaver_id_len = src.read_byte()?; |
| 668 | validate!(interleaver_id_len == 4); |
| 669 | let interleaver_id = src.read_u32be()?; |
| 670 | let fcc_len = src.read_byte()?; |
| 671 | validate!(fcc_len == 4); |
| 672 | let fcc = src.read_u32be()?; |
| 673 | let is_interleaved = src.read_byte()?; |
| 674 | let _can_copy = src.read_byte()?; |
| 675 | let _stream_type = src.read_byte()?; |
| 676 | |
| 677 | skip_ra_metadata(src)?; |
| 678 | |
| 679 | let end = src.tell(); |
| 680 | validate!(end - start <= (header_size as u64) + 10); |
| 681 | |
| 682 | let ileave_info = if is_interleaved != 0 { |
| 683 | Some(InterleaveInfo { |
| 684 | id: interleaver_id, factor: ileave_factor, block_size: granularity as u16, |
| 685 | frame_size: ileave_block_size, |
| 686 | }) |
| 687 | } else { |
| 688 | None |
| 689 | }; |
| 690 | |
| 691 | Ok(RealAudioInfo { |
| 692 | fcc: fcc, flavor: flavor, |
| 693 | sample_rate: sample_rate, sample_size: sample_size as u16, channels: channels, channel_mask: 0, |
| 694 | granularity: granularity, bytes_per_minute: bytes_per_minute, |
| 695 | total_bytes: total_bytes & 0xFFFFFF, edata_size: 0, |
| 696 | ileave_info: ileave_info, |
| 697 | }) |
| 698 | } |
| 699 | |
| 700 | #[allow(unused_variables)] |
| 701 | fn parse_aformat5(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> { |
| 702 | let start = src.tell(); |
| 703 | src.read_skip(2)?; // zeroes |
| 704 | let id = src.read_u32be()?; |
| 705 | validate!((id == mktag!(b".ra5")) || (id == mktag!(b".ra4"))); |
| 706 | let data_size = src.read_u32be()?; |
| 707 | let _ver5 = src.read_u16be()?; // should be 5 |
| 708 | let header_size = src.read_u32be()?; |
| 709 | let flavor = src.read_u16be()?; |
| 710 | let granularity = src.read_u32be()?; |
| 711 | let total_bytes = src.read_u32be()?; |
| 712 | let bytes_per_minute = src.read_u32be()?; |
| 713 | let _bytes_per_minute2 = src.read_u32be()?; |
| 714 | let ileave_factor = src.read_u16be()?; |
| 715 | let frame_size = src.read_u16be()?; |
| 716 | let ileave_block_size = src.read_u16be()?; |
| 717 | let user_data = src.read_u32be()?; |
| 718 | let _sample_rate1 = src.read_u16be()?; |
| 719 | let sample_rate = src.read_u32be()?; |
| 720 | let sample_size = src.read_u32be()?; |
| 721 | let channels = src.read_u16be()?; |
| 722 | let interleaver_id = src.read_u32be()?; |
| 723 | let fcc = src.read_u32be()?; |
| 724 | let is_interleaved = src.read_byte()?; |
| 725 | let _can_copy = src.read_byte()?; |
| 726 | let _stream_type = src.read_byte()?; |
| 727 | let has_ileave_pattern = src.read_byte()?; |
| 728 | if has_ileave_pattern != 0 { |
| 729 | unimplemented!("ra5 interleave pattern"); |
| 730 | } |
| 731 | let mut edata_size = src.read_u32be()?; |
| 732 | let end = src.tell(); |
| 733 | if id == mktag!(b".ra5") { |
| 734 | validate!(end - start <= (header_size as u64) + 10); |
| 735 | // src.read_skip(((end - start) as usize) - (header_size as usize) - 10)?; |
| 736 | } else { |
| 737 | validate!(end - start <= (header_size as u64) + 15); |
| 738 | } |
| 739 | |
| 740 | let ileave_info = if is_interleaved != 0 { |
| 741 | Some(InterleaveInfo { |
| 742 | id: interleaver_id, factor: ileave_factor, block_size: ileave_block_size, frame_size: frame_size, |
| 743 | }) |
| 744 | } else { |
| 745 | None |
| 746 | }; |
| 747 | if (fcc == mktag!(b"raac")) || (fcc == mktag!(b"racp")) { |
| 748 | validate!(edata_size > 1); |
| 749 | edata_size -= 1; |
| 750 | src.read_skip(1)?; |
| 751 | } |
| 752 | |
| 753 | Ok(RealAudioInfo { |
| 754 | fcc: fcc, flavor: flavor, |
| 755 | sample_rate: sample_rate, sample_size: sample_size as u16, channels: channels, channel_mask: 0, |
| 756 | granularity: granularity, bytes_per_minute: bytes_per_minute, |
| 757 | total_bytes: total_bytes & 0xFFFFFF, edata_size: edata_size, |
| 758 | ileave_info: ileave_info, |
| 759 | }) |
| 760 | } |
| 761 | |
| 762 | const RMVB_HDR_SIZE: u32 = 18; |
| 763 | const RMVB_PROP_SIZE: u32 = 50; |
| 764 | const KEYFRAME_FLAG: u8 = 0x02; |
| 765 | |
| 766 | impl<'a> RealMediaDemuxer<'a> { |
| 767 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 768 | RealMediaDemuxer { |
| 769 | src: io, |
| 770 | data_pos: 0, |
| 771 | next_data: 0, |
| 772 | data_ver: 0, |
| 773 | num_packets: 0, |
| 774 | cur_packet: 0, |
| 775 | mlti_stream_no: 0x10000, |
| 776 | mlti_mapper: MLTIMapper::new(), |
| 777 | streams: Vec::new(), |
| 778 | str_ids: Vec::new(), |
| 779 | queued_pkts: Vec::new(), |
| 780 | slice_buf: Vec::new(), |
| 781 | } |
| 782 | } |
| 783 | #[allow(unused_variables)] |
| 784 | fn read_header(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
| 785 | let (id, size, ver) = read_chunk(self.src)?; |
| 786 | validate!((id == mktag!(b".RMF")) || (id == mktag!(b".RMP"))); |
| 787 | validate!(size >= RMVB_HDR_SIZE); |
| 788 | let fver = self.src.read_u32be()?; |
| 789 | validate!(fver <= 1); |
| 790 | let num_hdr = self.src.read_u32be()? as usize; |
| 791 | validate!(num_hdr >= 1); |
| 792 | if size > RMVB_HDR_SIZE { |
| 793 | self.src.read_skip((size - RMVB_HDR_SIZE) as usize)?; |
| 794 | } |
| 795 | |
| 796 | let (id, size, ver) = read_chunk(self.src)?; |
| 797 | let prop_size = if ver == 0 { RMVB_PROP_SIZE } else { RMVB_PROP_SIZE + 4 }; |
| 798 | validate!(size >= prop_size); |
| 799 | validate!((ver == 0) || (ver == 2)); |
| 800 | let maxbr = self.src.read_u32be()?; |
| 801 | let avgbr = self.src.read_u32be()?; |
| 802 | let maxps = self.src.read_u32be()?; |
| 803 | let avgps = self.src.read_u32be()?; |
| 804 | let num_pkt = self.src.read_u32be()? as usize; |
| 805 | let duration = self.src.read_u32be()?; |
| 806 | let preroll = self.src.read_u32be()?; |
| 807 | if ver == 2 { |
| 808 | self.src.read_skip(4)?; |
| 809 | } |
| 810 | let idx_off = self.src.read_u32be()?; |
| 811 | let data_off = self.src.read_u32be()?; |
| 812 | let num_streams = self.src.read_u16be()? as usize; |
| 813 | let flags = self.src.read_u16be()?; |
| 814 | if size > prop_size { |
| 815 | self.src.read_skip((size - prop_size) as usize)?; |
| 816 | } |
| 817 | |
| 818 | for _ in 0..num_hdr { |
| 819 | if self.src.is_eof() { |
| 820 | //warn maybe? |
| 821 | break; |
| 822 | } |
| 823 | let res = self.parse_chunk(strmgr); |
| 824 | match res { |
| 825 | Ok(last) => { if last { break; } }, |
| 826 | Err(DemuxerError::IOError) => { break; }, |
| 827 | Err(etype) => { |
| 828 | if self.data_pos == 0 { // data is not found, report error |
| 829 | return Err(etype); |
| 830 | } |
| 831 | }, |
| 832 | }; |
| 833 | } |
| 834 | //println!("now @ {:X} / {}", self.src.tell(), self.data_pos); |
| 835 | validate!(self.data_pos > 0); |
| 836 | self.src.seek(SeekFrom::Start(self.data_pos))?; |
| 837 | self.parse_data_start()?; |
| 838 | Ok(()) |
| 839 | } |
| 840 | fn parse_data_start(&mut self) -> DemuxerResult<()> { |
| 841 | let num_packets = self.src.read_u32be()?; |
| 842 | if self.data_ver == 2 { |
| 843 | self.src.read_skip(12)?; // zeroes? |
| 844 | } |
| 845 | let next_data_hdr = self.src.read_u32be()?; |
| 846 | self.num_packets = if num_packets > 0 { num_packets } else { 0xFFFFFF }; |
| 847 | self.cur_packet = 0; |
| 848 | self.next_data = next_data_hdr as u64; |
| 849 | Ok(()) |
| 850 | } |
| 851 | fn parse_chunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<bool> { |
| 852 | let (id, size, ver) = read_chunk(self.src)?; |
| 853 | let end_pos = self.src.tell() - 10 + (size as u64); |
| 854 | |
| 855 | validate!((ver == 0) || (ver == 2)); |
| 856 | if id == mktag!(b"CONT") { self.parse_content_desc()?; } |
| 857 | else if id == mktag!(b"MDPR") { self.parse_mdpr(strmgr)?; } |
| 858 | else if id == mktag!(b"DATA") { if self.data_pos == 0 { self.data_ver = ver; self.data_pos = self.src.tell(); } } |
| 859 | else if id == mktag!(b"INDX") { /* do nothing for now */ } |
| 860 | else if id == 0 { return Ok(true); } |
| 861 | else { println!("unknown chunk type {:08X}", id); } |
| 862 | |
| 863 | let cpos = self.src.tell(); |
| 864 | if cpos < end_pos { |
| 865 | self.src.read_skip((end_pos - cpos) as usize)?; |
| 866 | } |
| 867 | Ok(false) |
| 868 | } |
| 869 | #[allow(unused_variables)] |
| 870 | fn parse_content_desc(&mut self) -> DemuxerResult<()> { |
| 871 | let title_len = self.src.read_u16be()? as usize; |
| 872 | self.src.read_skip(title_len)?; |
| 873 | let author_len = self.src.read_u16be()? as usize; |
| 874 | self.src.read_skip(author_len)?; |
| 875 | let copywrong_len = self.src.read_u16be()? as usize; |
| 876 | self.src.read_skip(copywrong_len)?; |
| 877 | let comment_len = self.src.read_u16be()? as usize; |
| 878 | self.src.read_skip(comment_len)?; |
| 879 | Ok(()) |
| 880 | } |
| 881 | #[allow(unused_variables)] |
| 882 | fn parse_mdpr(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
| 883 | let stream_no = self.src.read_u16be()? as u32; |
| 884 | //todo check stream_no for duplicates |
| 885 | let maxbr = self.src.read_u32be()?; |
| 886 | let avgbr = self.src.read_u32be()?; |
| 887 | let maxps = self.src.read_u32be()?; |
| 888 | let avgps = self.src.read_u32be()?; |
| 889 | let start = self.src.read_u32be()?; |
| 890 | let preroll = self.src.read_u32be()?; |
| 891 | let duration = self.src.read_u32be()?; |
| 892 | let sname_size = self.src.read_byte()? as usize; |
| 893 | let sname = read_string_size(self.src, sname_size)?; |
| 894 | //println!("str #{} sname = {} pkts {}/{} start {} preroll {}", stream_no, sname, maxps, avgps, start, preroll); |
| 895 | let mime_size = self.src.read_byte()? as usize; |
| 896 | let mime = read_string_size(self.src, mime_size)?; |
| 897 | //println!("mime = {}", mime); |
| 898 | let edata_size = self.src.read_u32be()? as usize; |
| 899 | let edata: Option<Vec<u8>> = if edata_size == 0 { None } else { |
| 900 | let mut edvec: Vec<u8> = Vec::with_capacity(edata_size); |
| 901 | edvec.resize(edata_size, 0); |
| 902 | self.src.read_buf(&mut edvec)?; |
| 903 | Some(edvec) |
| 904 | }; |
| 905 | let mut is_mlti = false; |
| 906 | if edata_size > 8 { |
| 907 | if let Some(edata_) = edata { |
| 908 | let mut mr = MemoryReader::new_read(edata_.as_slice()); |
| 909 | let mut src = ByteReader::new(&mut mr); |
| 910 | |
| 911 | let tag = src.read_u32be()?; |
| 912 | let tag2 = src.peek_u32be()?; |
| 913 | //println!("tag1 {:X} tag2 {:X}", tag, tag2); |
| 914 | if tag == mktag!('.', 'r', 'a', 0xFD) { |
| 915 | self.parse_audio_stream(strmgr, stream_no, &mut src, &edata_.as_slice())?; |
| 916 | } else if ((tag2 == mktag!('V', 'I', 'D', 'O')) || (tag2 == mktag!('I', 'M', 'A', 'G'))) && ((tag as usize) <= edata_size) { |
| 917 | self.parse_video_stream(strmgr, stream_no, &mut src, &edata_.as_slice(), tag2)?; |
| 918 | } else if tag == mktag!(b"LSD:") { |
| 919 | let extradata = Some(edata_.to_vec()); |
| 920 | |
| 921 | src.read_skip(4)?; //version |
| 922 | let channels = src.read_u16be()?; |
| 923 | let samp_size = src.read_u16be()?; |
| 924 | let sample_rate = src.read_u32be()?; |
| 925 | |
| 926 | println!("LSD sr {}, {} ch", sample_rate, channels); |
| 927 | let soniton = NASoniton::new(samp_size as u8, SONITON_FLAG_SIGNED); |
| 928 | let ahdr = NAAudioInfo::new(sample_rate, channels as u8, soniton, 1); |
| 929 | let nainfo = NACodecInfo::new("ralf", NACodecTypeInfo::Audio(ahdr), extradata); |
| 930 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, stream_no as u32, nainfo, 1, sample_rate)); |
| 931 | if res.is_none() { return Err(MemoryError); } |
| 932 | let astr = RMAudioStream::new(None); |
| 933 | self.streams.push(RMStreamType::Audio(astr)); |
| 934 | } else if tag == mktag!(b"MLTI") { |
| 935 | is_mlti = true; |
| 936 | let num_rules = src.read_u16be()? as usize; |
| 937 | let mut max_sub = 0; |
| 938 | self.mlti_mapper.add_stream(stream_no); |
| 939 | for i in 0..num_rules { |
| 940 | let substr = src.read_u16be()?; |
| 941 | max_sub = max_sub.max(substr); |
| 942 | self.mlti_mapper.add_map_rule(stream_no, substr); |
| 943 | } |
| 944 | let num_substreams = src.read_u16be()? as usize; |
| 945 | validate!(num_substreams > (max_sub as usize)); |
| 946 | for i in 0..num_substreams { |
| 947 | let hdr_size = src.read_u32be()? as usize; |
| 948 | validate!(hdr_size > 8); |
| 949 | let pos = src.tell() as usize; |
| 950 | src.read_skip(hdr_size)?; |
| 951 | self.mlti_mapper.add_substream(stream_no, self.mlti_stream_no); |
| 952 | { |
| 953 | let hdrsrc = &edata_[pos..][..hdr_size]; |
| 954 | let mut mr = MemoryReader::new_read(hdrsrc); |
| 955 | let mut hsrc = ByteReader::new(&mut mr); |
| 956 | |
| 957 | let tag = hsrc.read_u32be()?; |
| 958 | let tag2 = hsrc.peek_u32be()?; |
| 959 | let stream_no = self.mlti_stream_no; |
| 960 | self.mlti_stream_no += 1; |
| 961 | //todo check that all substreams are of the same type"); |
| 962 | if tag == mktag!('.', 'r', 'a', 0xFD) { |
| 963 | self.parse_audio_stream(strmgr, stream_no, &mut hsrc, hdrsrc)?; |
| 964 | } else if (tag2 == mktag!('V', 'I', 'D', 'O')) && ((tag as usize) <= hdr_size) { |
| 965 | self.parse_video_stream(strmgr, stream_no, &mut hsrc, hdrsrc, tag2)?; |
| 966 | } else { |
| 967 | println!("unknown MLTI substream {:08X} / {:08X}", tag, tag2); |
| 968 | return Err(DemuxerError::InvalidData); |
| 969 | } |
| 970 | self.str_ids.push(stream_no); |
| 971 | } |
| 972 | } |
| 973 | } else { |
| 974 | self.streams.push(RMStreamType::Logical); |
| 975 | } |
| 976 | } |
| 977 | } else { |
| 978 | self.streams.push(RMStreamType::Unknown); |
| 979 | } |
| 980 | if !is_mlti { |
| 981 | self.str_ids.push(stream_no); |
| 982 | } |
| 983 | |
| 984 | Ok(()) |
| 985 | } |
| 986 | fn parse_audio_stream(&mut self, strmgr: &mut StreamManager, stream_no: u32, src: &mut ByteReader, edata_: &[u8]) -> DemuxerResult<()> { |
| 987 | let ver = src.read_u16be()?; |
| 988 | let ainfo = match ver { |
| 989 | 3 => { |
| 990 | parse_aformat3(src)? |
| 991 | }, |
| 992 | 4 => { |
| 993 | parse_aformat4(src)? |
| 994 | }, |
| 995 | 5 => { |
| 996 | parse_aformat5(src)? |
| 997 | }, |
| 998 | _ => { |
| 999 | println!("unknown version {}", ver); |
| 1000 | return Err(DemuxerError::InvalidData); |
| 1001 | }, |
| 1002 | }; |
| 1003 | println!(" got ainfo {:?}", ainfo); |
| 1004 | let cname = find_codec_name(RM_AUDIO_CODEC_REGISTER, ainfo.fcc); |
| 1005 | let blk_size = if ainfo.fcc != mktag!(b"sipr") { |
| 1006 | ainfo.granularity as usize |
| 1007 | } else { |
| 1008 | validate!(ainfo.flavor <= 3); |
| 1009 | RM_SIPRO_BLOCK_SIZES[ainfo.flavor as usize] |
| 1010 | }; |
| 1011 | let srate = ainfo.sample_rate; |
| 1012 | let soniton = NASoniton::new(ainfo.sample_size as u8, SONITON_FLAG_SIGNED); |
| 1013 | let ahdr = NAAudioInfo::new(srate, ainfo.channels as u8, soniton, blk_size); |
| 1014 | let extradata = if ainfo.edata_size == 0 { |
| 1015 | None |
| 1016 | } else { |
| 1017 | let eslice = &edata_[(src.tell() as usize)..]; |
| 1018 | Some(eslice.to_vec()) |
| 1019 | }; |
| 1020 | let nainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), extradata); |
| 1021 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, stream_no as u32, nainfo, 1, srate)); |
| 1022 | if res.is_none() { return Err(MemoryError); } |
| 1023 | |
| 1024 | let astr = RMAudioStream::new(ainfo.ileave_info); |
| 1025 | self.streams.push(RMStreamType::Audio(astr)); |
| 1026 | Ok(()) |
| 1027 | } |
| 1028 | #[allow(unused_variables)] |
| 1029 | fn parse_video_stream(&mut self, strmgr: &mut StreamManager, stream_no: u32, src: &mut ByteReader, edata_: &[u8], tag2: u32) -> DemuxerResult<()> { |
| 1030 | src.read_skip(4)?; |
| 1031 | let fcc = src.read_u32be()?; |
| 1032 | let width = src.read_u16be()? as usize; |
| 1033 | let height = src.read_u16be()? as usize; |
| 1034 | let bpp = src.read_u16be()?; |
| 1035 | let pad_w = src.read_u16be()?; |
| 1036 | let pad_h = src.read_u16be()?; |
| 1037 | let fps; |
| 1038 | if tag2 == mktag!('V', 'I', 'D', 'O') { |
| 1039 | fps = src.read_u32be()?; |
| 1040 | } else { |
| 1041 | fps = 0x10000; |
| 1042 | } |
| 1043 | let extradata: Option<Vec<u8>>; |
| 1044 | if src.left() > 0 { |
| 1045 | let eslice = &edata_[(src.tell() as usize)..]; |
| 1046 | extradata = Some(eslice.to_vec()); |
| 1047 | } else { |
| 1048 | extradata = None; |
| 1049 | } |
| 1050 | let cname = find_codec_name(RM_VIDEO_CODEC_REGISTER, fcc); |
| 1051 | |
| 1052 | let vhdr = NAVideoInfo::new(width, height, false, RGB24_FORMAT); |
| 1053 | let vinfo = NACodecInfo::new(cname, NACodecTypeInfo::Video(vhdr), extradata); |
| 1054 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, stream_no as u32, vinfo, 0x10000, fps)); |
| 1055 | if res.is_none() { return Err(DemuxerError::MemoryError); } |
| 1056 | |
| 1057 | let vstr = RMVideoStream::new(); |
| 1058 | self.streams.push(RMStreamType::Video(vstr)); |
| 1059 | Ok(()) |
| 1060 | } |
| 1061 | /*#[allow(unused_variables)] |
| 1062 | fn read_pkt_header(&mut self) -> DemuxerResult<()> { |
| 1063 | let ver = self.src.read_u16be()?; |
| 1064 | validate!(ver <= 1); |
| 1065 | let str_no = self.src.read_u16be()?; |
| 1066 | let timestamp = self.src.read_u32be()?; |
| 1067 | if ver == 0 { |
| 1068 | let pkt_group = self.src.read_byte()?; |
| 1069 | let pkt_flags = self.src.read_byte()?; |
| 1070 | } else { |
| 1071 | let asm_rule = self.src.read_u16be()?; |
| 1072 | let asm_flags = self.src.read_byte()?; |
| 1073 | } |
| 1074 | Ok(()) |
| 1075 | }*/ |
| 1076 | } |
| 1077 | |
| 1078 | fn read_string(src: &mut ByteReader) -> DemuxerResult<String> { |
| 1079 | let mut vec: Vec<u8> = Vec::new(); |
| 1080 | loop { |
| 1081 | let c = src.read_byte()?; |
| 1082 | if c == 0 { break; } |
| 1083 | vec.push(c); |
| 1084 | } |
| 1085 | let str = String::from_utf8(vec); |
| 1086 | if str.is_ok() { |
| 1087 | Ok(str.unwrap()) |
| 1088 | } else { |
| 1089 | Ok(String::new()) |
| 1090 | } |
| 1091 | } |
| 1092 | |
| 1093 | fn read_string_size(src: &mut ByteReader, size: usize) -> DemuxerResult<String> { |
| 1094 | let mut vec: Vec<u8> = Vec::new(); |
| 1095 | for _ in 0..size { |
| 1096 | let c = src.read_byte()?; |
| 1097 | vec.push(c); |
| 1098 | } |
| 1099 | let str = String::from_utf8(vec); |
| 1100 | if str.is_ok() { |
| 1101 | Ok(str.unwrap()) |
| 1102 | } else { |
| 1103 | Ok(String::new()) |
| 1104 | } |
| 1105 | } |
| 1106 | |
| 1107 | #[allow(dead_code)] |
| 1108 | #[allow(unused_variables)] |
| 1109 | fn parse_rm_stream(io: &mut ByteReader) -> DemuxerResult<NAStream> { |
| 1110 | let mimetype = read_string(io)?; |
| 1111 | let strname = read_string(io)?; |
| 1112 | let strnum = io.read_u32be()?; |
| 1113 | let maxbr = io.read_u32be()?; |
| 1114 | let avgbr = io.read_u32be()?; |
| 1115 | let maxsize = io.read_u32be()?; |
| 1116 | let avgsize = io.read_u32be()?; |
| 1117 | let duration = io.read_u32be()?; |
| 1118 | let preroll = io.read_u32be()?; |
| 1119 | let start = io.read_u32be()?; |
| 1120 | let edatalen = io.read_u32be()? as usize; |
| 1121 | let mut edata: Vec<u8> = Vec::with_capacity(edatalen); |
| 1122 | edata.resize(edatalen, 0); |
| 1123 | io.read_buf(&mut edata)?; |
| 1124 | let numprops = io.read_u32be()? as usize; |
| 1125 | //read properties |
| 1126 | unimplemented!(); |
| 1127 | } |
| 1128 | |
| 1129 | struct RealAudioDemuxer<'a> { |
| 1130 | src: &'a mut ByteReader<'a>, |
| 1131 | stream: Option<RMAudioStream>, |
| 1132 | data_start: u64, |
| 1133 | data_end: u64, |
| 1134 | blk_size: usize, |
| 1135 | queued_pkts: Vec<NAPacket>, |
| 1136 | } |
| 1137 | |
| 1138 | impl<'a> DemuxCore<'a> for RealAudioDemuxer<'a> { |
| 1139 | #[allow(unused_variables)] |
| 1140 | fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
| 1141 | let magic = self.src.read_u32be()?; |
| 1142 | validate!(magic == mktag!(b".ra\xFD")); |
| 1143 | let ver = self.src.read_u16be()?; |
| 1144 | let ainfo = match ver { |
| 1145 | 3 => { |
| 1146 | parse_aformat3(&mut self.src)? |
| 1147 | }, |
| 1148 | 4 => { |
| 1149 | parse_aformat4(&mut self.src)? |
| 1150 | }, |
| 1151 | 5 => { |
| 1152 | parse_aformat5(&mut self.src)? |
| 1153 | }, |
| 1154 | _ => { |
| 1155 | println!("unknown version {}", ver); |
| 1156 | return Err(DemuxerError::InvalidData); |
| 1157 | }, |
| 1158 | }; |
| 1159 | println!(" got ainfo {:?}", ainfo); |
| 1160 | let cname = find_codec_name(RM_AUDIO_CODEC_REGISTER, ainfo.fcc); |
| 1161 | let blk_size = if ainfo.fcc != mktag!(b"sipr") { |
| 1162 | ainfo.granularity as usize |
| 1163 | } else { |
| 1164 | validate!(ainfo.flavor <= 3); |
| 1165 | RM_SIPRO_BLOCK_SIZES[ainfo.flavor as usize] |
| 1166 | }; |
| 1167 | let srate = ainfo.sample_rate; |
| 1168 | let soniton = NASoniton::new(ainfo.sample_size as u8, SONITON_FLAG_SIGNED); |
| 1169 | let ahdr = NAAudioInfo::new(srate, ainfo.channels as u8, soniton, blk_size); |
| 1170 | let extradata = if ainfo.edata_size == 0 { |
| 1171 | None |
| 1172 | } else { |
| 1173 | let mut dta: Vec<u8> = Vec::with_capacity(ainfo.edata_size as usize); |
| 1174 | dta.resize(ainfo.edata_size as usize, 0); |
| 1175 | self.src.read_buf(dta.as_mut_slice())?; |
| 1176 | Some(dta) |
| 1177 | }; |
| 1178 | let nainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), extradata); |
| 1179 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, 0, nainfo, 1, srate)); |
| 1180 | if res.is_none() { return Err(MemoryError); } |
| 1181 | |
| 1182 | let astr = RMAudioStream::new(ainfo.ileave_info); |
| 1183 | self.data_start = self.src.tell(); |
| 1184 | self.data_end = if ainfo.total_bytes > 0 { self.src.tell() + (ainfo.total_bytes as u64) } else { 0 }; |
| 1185 | self.blk_size = blk_size; |
| 1186 | self.stream = Some(astr); |
| 1187 | |
| 1188 | Ok(()) |
| 1189 | } |
| 1190 | |
| 1191 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 1192 | if !self.queued_pkts.is_empty() { |
| 1193 | let pkt = self.queued_pkts.pop().unwrap(); |
| 1194 | return Ok(pkt); |
| 1195 | } |
| 1196 | if (self.data_end != 0) && (self.src.tell() >= self.data_end) { |
| 1197 | return Err(DemuxerError::EOF); |
| 1198 | } |
| 1199 | let streamres = strmgr.get_stream_by_id(0); |
| 1200 | let stream = streamres.unwrap(); |
| 1201 | if let Some(ref mut astr) = self.stream { |
| 1202 | loop { |
| 1203 | let ret = astr.read_apackets(&mut self.queued_pkts, &mut self.src, stream.clone(), 0, false, self.blk_size); |
| 1204 | if let Err(DemuxerError::TryAgain) = ret { |
| 1205 | continue; |
| 1206 | } |
| 1207 | return ret; |
| 1208 | } |
| 1209 | } |
| 1210 | Err(DemuxerError::NoSuchInput) |
| 1211 | } |
| 1212 | |
| 1213 | #[allow(unused_variables)] |
| 1214 | fn seek(&mut self, time: u64) -> DemuxerResult<()> { |
| 1215 | Err(NotImplemented) |
| 1216 | } |
| 1217 | } |
| 1218 | |
| 1219 | impl<'a> RealAudioDemuxer<'a> { |
| 1220 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 1221 | RealAudioDemuxer { |
| 1222 | src: io, |
| 1223 | data_start: 0, |
| 1224 | data_end: 0, |
| 1225 | blk_size: 0, |
| 1226 | stream: None, |
| 1227 | queued_pkts: Vec::new(), |
| 1228 | } |
| 1229 | } |
| 1230 | } |
| 1231 | |
| 1232 | static RM_VIDEO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[ |
| 1233 | (b"RV10", "realvideo1"), |
| 1234 | (b"RV20", "realvideo2"), |
| 1235 | (b"RVTR", "realvideo2"), |
| 1236 | (b"RV30", "realvideo3"), |
| 1237 | (b"RV40", "realvideo4"), |
| 1238 | (b"RV60", "realvideo6"), |
| 1239 | (b"CLV1", "clearvideo_rm"), |
| 1240 | ]; |
| 1241 | |
| 1242 | #[allow(dead_code)] |
| 1243 | static RM_AUDIO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[ |
| 1244 | (b"lpcJ", "ra14.4"), |
| 1245 | (b"28_8", "ra28.8"), |
| 1246 | (b"cook", "cook"), |
| 1247 | (b"dnet", "ac3"), |
| 1248 | (b"sipr", "sipro"), |
| 1249 | (b"atrc", "atrac3"), |
| 1250 | (b"LSD:", "ralf"), |
| 1251 | (b"raac", "aac"), |
| 1252 | (b"racp", "aac"), |
| 1253 | ]; |
| 1254 | |
| 1255 | pub struct RealMediaDemuxerCreator { } |
| 1256 | |
| 1257 | impl DemuxerCreator for RealMediaDemuxerCreator { |
| 1258 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> { |
| 1259 | Box::new(RealMediaDemuxer::new(br)) |
| 1260 | } |
| 1261 | fn get_name(&self) -> &'static str { "realmedia" } |
| 1262 | } |
| 1263 | |
| 1264 | pub struct RealAudioDemuxerCreator { } |
| 1265 | |
| 1266 | impl DemuxerCreator for RealAudioDemuxerCreator { |
| 1267 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> { |
| 1268 | Box::new(RealAudioDemuxer::new(br)) |
| 1269 | } |
| 1270 | fn get_name(&self) -> &'static str { "realaudio" } |
| 1271 | } |
| 1272 | |
| 1273 | /*pub struct RealIVRDemuxerCreator { } |
| 1274 | |
| 1275 | impl DemuxerCreator for RealIVRDemuxerCreator { |
| 1276 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> { |
| 1277 | Box::new(RealIVRDemuxer::new(br)) |
| 1278 | } |
| 1279 | fn get_name(&self) -> &'static str { "real_ivr" } |
| 1280 | }*/ |
| 1281 | |
| 1282 | #[cfg(test)] |
| 1283 | mod test { |
| 1284 | use super::*; |
| 1285 | use std::fs::File; |
| 1286 | |
| 1287 | #[test] |
| 1288 | fn test_rm_demux() { |
| 1289 | let mut file = |
| 1290 | File::open("assets/RV/rv10_dnet_640x352_realvideo_encoder_4.0.rm").unwrap(); |
| 1291 | // File::open("assets/RV/rv20_cook_640x352_realproducer_plus_8.51.rm").unwrap(); |
| 1292 | // File::open("assets/RV/rv20_svt_atrc_640x352_realproducer_plus_8.51.rm").unwrap(); |
| 1293 | // File::open("assets/RV/rv30_atrc_384x208_realproducer_plus_8.51.rm").unwrap(); |
| 1294 | // File::open("assets/RV/rv30_chroma_drift.rm").unwrap(); |
| 1295 | // File::open("assets/RV/rv30_weighted_mc.rm").unwrap(); |
| 1296 | // File::open("assets/RV/rv40_weighted_mc.rmvb").unwrap(); |
| 1297 | // File::open("assets/RV/rv40_weighted_mc_2.rmvb").unwrap(); |
| 1298 | // File::open("assets/RV/clv1_sipr_384x208_realvideo_encoder_4.0.rm").unwrap(); |
| 1299 | // File::open("assets/RV/luckynight.rmvb").unwrap(); |
| 1300 | // File::open("assets/RV/rv40_ralf.rmvb").unwrap(); |
| 1301 | let mut fr = FileReader::new_read(&mut file); |
| 1302 | let mut br = ByteReader::new(&mut fr); |
| 1303 | let mut dmx = RealMediaDemuxer::new(&mut br); |
| 1304 | let mut sm = StreamManager::new(); |
| 1305 | dmx.open(&mut sm).unwrap(); |
| 1306 | |
| 1307 | loop { |
| 1308 | let pktres = dmx.get_frame(&mut sm); |
| 1309 | if let Err(e) = pktres { |
| 1310 | if e == DemuxerError::EOF { break; } |
| 1311 | panic!("error"); |
| 1312 | } |
| 1313 | let pkt = pktres.unwrap(); |
| 1314 | println!("Got {}", pkt); |
| 1315 | } |
| 1316 | //panic!("the end"); |
| 1317 | } |
| 1318 | #[test] |
| 1319 | fn test_ra_demux() { |
| 1320 | let mut file = |
| 1321 | // File::open("assets/RV/welcome288.ra").unwrap(); |
| 1322 | File::open("assets/RV/diemusik.ra").unwrap(); |
| 1323 | let mut fr = FileReader::new_read(&mut file); |
| 1324 | let mut br = ByteReader::new(&mut fr); |
| 1325 | let mut dmx = RealAudioDemuxer::new(&mut br); |
| 1326 | let mut sm = StreamManager::new(); |
| 1327 | dmx.open(&mut sm).unwrap(); |
| 1328 | |
| 1329 | loop { |
| 1330 | let pktres = dmx.get_frame(&mut sm); |
| 1331 | if let Err(e) = pktres { |
| 1332 | if e == DemuxerError::EOF { break; } |
| 1333 | panic!("error"); |
| 1334 | } |
| 1335 | let pkt = pktres.unwrap(); |
| 1336 | println!("Got {}", pkt); |
| 1337 | } |
| 1338 | } |
| 1339 | } |