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ce52b3b5 KS |
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); | |
9037cf6b | 48 | let dslice = &mut self.frame[self.hdr_size + self.frame_pos..][..data.len()]; |
ce52b3b5 KS |
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 | ||
b1ef37ee | 71 | #[allow(dead_code)] |
ce52b3b5 KS |
72 | #[derive(Clone,Copy,PartialEq)] |
73 | enum Deinterleaver { | |
74 | None, | |
c19ce782 | 75 | RA28_8, |
ce52b3b5 KS |
76 | Generic, |
77 | Sipro, | |
78 | VBR, | |
79 | } | |
80 | ||
b1ef37ee | 81 | #[allow(dead_code)] |
ce52b3b5 KS |
82 | struct RMAudioStream { |
83 | deint: Deinterleaver, | |
c19ce782 | 84 | iinfo: Option<InterleaveInfo>, |
ce52b3b5 KS |
85 | } |
86 | ||
c19ce782 KS |
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 | ||
ce52b3b5 | 93 | impl RMAudioStream { |
c19ce782 KS |
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 } | |
ce52b3b5 KS |
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)?; | |
c9aba47e KS |
170 | let _seq_no = src.read_byte()?; |
171 | //println!(" multiple frame size {} ts {} seq {}", frame_size, timestamp, seq_no); | |
ce52b3b5 KS |
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()?; | |
c9aba47e | 198 | let _pkt_grp; |
ce52b3b5 | 199 | if ver == 0 { |
c9aba47e | 200 | _pkt_grp = self.src.read_byte()?; |
ce52b3b5 KS |
201 | } else { |
202 | //asm_rule = self.src.read_u16le()?; | |
203 | self.src.read_skip(2)?; | |
c9aba47e | 204 | _pkt_grp = 0; |
ce52b3b5 KS |
205 | } |
206 | let flags = self.src.read_byte()?; | |
207 | let hdr_size = self.src.tell() - pkt_start; | |
c9aba47e | 208 | //println!("packet @{:X} size {} for {} ts {} grp {} flags {:X}", pkt_start, len, str_no, ts, pkt_grp, flags); |
ce52b3b5 KS |
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() { | |
c9aba47e | 215 | //println!("stream {} not found", str_no); |
ce52b3b5 KS |
216 | self.src.read_skip(payload_size)?; |
217 | return Err(DemuxerError::InvalidData); | |
218 | } | |
219 | let str_id = sr.unwrap(); | |
c9aba47e KS |
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); | |
ce52b3b5 KS |
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()?; | |
c9aba47e | 248 | //println!(" mode 0 pkt {}/{} off {}/{} seq {}", packet_num, num_pkts, off, frame_size, seq_no); |
ce52b3b5 KS |
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 | } | |
8a5cb596 KS |
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) | |
ce52b3b5 KS |
267 | }, |
268 | 1 => { // whole frame | |
269 | let seq_no = self.src.read_byte()?; | |
c9aba47e | 270 | //println!(" mode 1 seq {}", seq_no); |
ce52b3b5 KS |
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()?; | |
c9aba47e | 281 | //println!(" mode 2 pkt {}/{} tail {}/{} seq {}", packet_num, num_pkts, tail_size, frame_size, seq_no); |
ce52b3b5 KS |
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 | |
c9aba47e | 298 | //println!(" mode 3"); |
ce52b3b5 KS |
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()?; | |
6132225f | 333 | if id == 0 { return Ok((0, 0, 0)); } |
ce52b3b5 KS |
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 | ||
c19ce782 KS |
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 | ||
ce52b3b5 KS |
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 { | |
c9aba47e KS |
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 | }; | |
ce52b3b5 | 566 | } |
c9aba47e | 567 | //println!("now @ {:X} / {}", self.src.tell(), self.data_pos); |
ce52b3b5 KS |
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 | } | |
6132225f | 576 | fn parse_chunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<bool> { |
ce52b3b5 KS |
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 */ } | |
6132225f | 585 | else if id == 0 { return Ok(true); } |
ce52b3b5 KS |
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 | } | |
6132225f | 592 | Ok(false) |
ce52b3b5 KS |
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)?; | |
c9aba47e | 619 | //println!("str #{} sname = {} pkts {}/{} start {} preroll {}", stream_no, sname, maxps, avgps, start, preroll); |
ce52b3b5 KS |
620 | let mime_size = self.src.read_byte()? as usize; |
621 | let mime = read_string_size(self.src, mime_size)?; | |
c9aba47e | 622 | //println!("mime = {}", mime); |
ce52b3b5 KS |
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()?; | |
c9aba47e | 638 | //println!("tag1 {:X} tag2 {:X}", tag, tag2); |
ce52b3b5 | 639 | if tag == mktag!('.', 'r', 'a', 0xFD) { |
c19ce782 KS |
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)); | |
ce52b3b5 KS |
669 | if res.is_none() { return Err(MemoryError); } |
670 | ||
c19ce782 | 671 | let astr = RMAudioStream::new(ainfo.ileave_info); |
ce52b3b5 KS |
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)); | |
c19ce782 KS |
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)); | |
ce52b3b5 KS |
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"), | |
750b299c | 824 | (b"CLV1", "clearvideo_rm"), |
ce52b3b5 KS |
825 | ]; |
826 | ||
b1ef37ee | 827 | #[allow(dead_code)] |
ce52b3b5 KS |
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 | } | |
41f11b2b | 883 | //panic!("the end"); |
ce52b3b5 KS |
884 | } |
885 | } |