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[nihav.git] / nihav-realmedia / src / demuxers / realmedia.rs
1 use super::*;
2 use nihav_core::demuxers::DemuxerError::*;
3 use std::io::SeekFrom;
4 use std::mem;
5 use std::fmt;
6
7 macro_rules! mktag {
8 ($a:expr, $b:expr, $c:expr, $d:expr) => ({
9 (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32)
10 });
11 ($arr:expr) => ({
12 (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32)
13 });
14 }
15
16 const RM_SIPRO_BLOCK_SIZES: [usize; 4] = [ 29, 19, 37, 20 ];
17 const RM_SIPRO_SWAPS: [[u8; 2]; 38] = [
18 [ 0, 63 ], [ 1, 22 ], [ 2, 44 ], [ 3, 90 ],
19 [ 5, 81 ], [ 7, 31 ], [ 8, 86 ], [ 9, 58 ],
20 [ 10, 36 ], [ 12, 68 ], [ 13, 39 ], [ 14, 73 ],
21 [ 15, 53 ], [ 16, 69 ], [ 17, 57 ], [ 19, 88 ],
22 [ 20, 34 ], [ 21, 71 ], [ 24, 46 ], [ 25, 94 ],
23 [ 26, 54 ], [ 28, 75 ], [ 29, 50 ], [ 32, 70 ],
24 [ 33, 92 ], [ 35, 74 ], [ 38, 85 ], [ 40, 56 ],
25 [ 42, 87 ], [ 43, 65 ], [ 45, 59 ], [ 48, 79 ],
26 [ 49, 93 ], [ 51, 89 ], [ 55, 95 ], [ 61, 76 ],
27 [ 67, 83 ], [ 77, 80 ]
28 ];
29
30 struct RMVideoStream {
31 frame: Vec<u8>,
32 hdr_size: usize,
33 frame_size: usize,
34 frame_pos: usize,
35 }
36
37 impl RMVideoStream {
38 fn new() -> Self {
39 RMVideoStream {
40 frame: Vec::new(),
41 hdr_size: 0,
42 frame_size: 0,
43 frame_pos: 0,
44 }
45 }
46 fn flush(&mut self) {
47 self.frame.truncate(0);
48 self.frame_size = 0;
49 self.frame_pos = 0;
50 }
51 fn start_slice(&mut self, num_slices: usize, frame_size: usize, data: &[u8]) {
52 self.hdr_size = num_slices * 8 + 1;
53 self.frame.resize(frame_size + self.hdr_size, 0);
54 self.frame[0] = (num_slices - 1) as u8;
55 self.frame_pos = 0;
56 self.add_slice(1, data).unwrap();
57 }
58 fn add_slice(&mut self, slice_no: usize, data: &[u8]) -> DemuxerResult<()> {
59 validate!(self.hdr_size + self.frame_pos + data.len() <= self.frame.len());
60 self.write_slice_info(slice_no);
61 let dslice = &mut self.frame[self.hdr_size + self.frame_pos..][..data.len()];
62 dslice.copy_from_slice(data);
63 self.frame_pos += data.len();
64 Ok(())
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 #[derive(Clone,Copy,PartialEq)]
86 enum Deinterleaver {
87 None,
88 RA28_8,
89 Generic,
90 Sipro,
91 VBR,
92 }
93
94 struct RMAudioStream {
95 deint: Deinterleaver,
96 iinfo: Option<InterleaveInfo>,
97 buf: Vec<u8>,
98 sub_packet: usize,
99 }
100
101 const RM_ILEAVE_INT0: u32 = mktag!(b"Int0");
102 const RM_ILEAVE_INT4: u32 = mktag!(b"Int4");
103 const RM_ILEAVE_GENR: u32 = mktag!(b"genr");
104 const RM_ILEAVE_SIPR: u32 = mktag!(b"sipr");
105 const RM_ILEAVE_VBRF: u32 = mktag!(b"vbrf");
106 const RM_ILEAVE_VBRS: u32 = mktag!(b"vbrs");
107
108 impl RMAudioStream {
109 fn new(iinfo: Option<InterleaveInfo>) -> Self {
110 let deint;
111 let buf: Vec<u8>;
112 if let Some(info) = iinfo {
113 deint = match info.id {
114 RM_ILEAVE_INT0 => Deinterleaver::None,
115 RM_ILEAVE_INT4 => Deinterleaver::RA28_8,
116 RM_ILEAVE_GENR => Deinterleaver::Generic,
117 RM_ILEAVE_SIPR => Deinterleaver::Sipro,
118 RM_ILEAVE_VBRF => Deinterleaver::VBR,
119 RM_ILEAVE_VBRS => Deinterleaver::VBR,
120 _ => {println!("unknown deint {:X}", info.id); Deinterleaver::None },
121 };
122 match deint {
123 Deinterleaver::None => { buf = Vec::new(); },
124 Deinterleaver::RA28_8 |
125 Deinterleaver::Generic |
126 Deinterleaver::Sipro => {
127 let bsize = (info.frame_size as usize) * (info.factor as usize);
128 buf = vec![0; bsize];
129 },
130 Deinterleaver::VBR => {
131 buf = Vec::new();
132 },
133 };
134 } else {
135 deint = Deinterleaver::None;
136 buf = Vec::new();
137 }
138 RMAudioStream { deint, iinfo, buf, sub_packet: 0 }
139 }
140 fn read_apackets(&mut self, queued_packets: &mut Vec<NAPacket>, src: &mut ByteReader, stream: NAStreamRef, ts: u32, keyframe: bool, payload_size: usize) -> DemuxerResult<NAPacket> {
141 let (tb_num, tb_den) = stream.get_timebase();
142 let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den);
143
144 if keyframe {
145 self.sub_packet = 0;
146 }
147 match self.deint {
148 Deinterleaver::None => { return src.read_packet(stream, ts, keyframe, payload_size); },
149 Deinterleaver::RA28_8 => {
150 let iinfo = self.iinfo.unwrap();
151 let factor = iinfo.factor as usize;
152 let halffact = factor >> 1;
153 let fsize = iinfo.frame_size as usize;
154 let bsize = iinfo.block_size as usize;
155 let ppos = self.sub_packet;
156 for sb in 0..halffact {
157 let mut dst = &mut self.buf[sb * 2 * fsize + ppos * bsize..][..bsize];
158 src.read_buf(&mut dst)?;
159 }
160 self.sub_packet += 1;
161 if self.sub_packet == factor {
162 self.sub_packet = 0;
163 return Ok(NAPacket::new(stream, ts, true, self.buf.clone()));
164 } else {
165 return Err(DemuxerError::TryAgain);
166 }
167 },
168 Deinterleaver::Generic => {
169 let iinfo = self.iinfo.unwrap();
170 let factor = iinfo.factor as usize;
171 let fsize = iinfo.frame_size as usize;
172 let bsize = iinfo.block_size as usize;
173 let factor2 = fsize / bsize;
174 let ppos = self.sub_packet;
175
176 for sb in 0..factor2 {
177 let sb_pos = factor * sb + ((factor + 1) >> 1) * (ppos & 1) + (ppos >> 1);
178 let mut dst = &mut self.buf[bsize * sb_pos..][..bsize];
179 src.read_buf(&mut dst)?;
180 }
181 },
182 Deinterleaver::Sipro => {
183 let iinfo = self.iinfo.unwrap();
184 let fsize = iinfo.frame_size as usize;
185 let ppos = self.sub_packet;
186
187 let mut dst = &mut self.buf[fsize * ppos..][..fsize];
188 src.read_buf(&mut dst)?;
189 },
190 Deinterleaver::VBR => {
191 validate!(payload_size >= 5);
192 let hdrsizesize = src.read_u16be()?;
193 let num_entries = (hdrsizesize / 16) as usize;
194 validate!(payload_size >= num_entries * 3 + 2);
195 let mut sizes: Vec<usize> = Vec::with_capacity(num_entries);
196 let mut tot_size = 0;
197 for _ in 0..num_entries {
198 let sz = src.read_u16be()? as usize;
199 tot_size += sz;
200 sizes.push(sz);
201 }
202 validate!(tot_size + num_entries * 2 + 2 == payload_size);
203 let pkt_ts = NATimeInfo::new(None, None, None, tb_num, tb_den);
204 let mut first = true;
205 for size in sizes.iter() {
206 let cur_ts = if first { ts } else { pkt_ts };
207 first = false;
208 let pkt = src.read_packet(stream.clone(), cur_ts, true, *size)?;
209 queued_packets.push(pkt);
210 }
211 queued_packets.reverse();
212 let pkt0 = queued_packets.pop().unwrap();
213 return Ok(pkt0);
214 },
215 };
216
217 let iinfo = self.iinfo.unwrap();
218 let factor = iinfo.factor as usize;
219 let fsize = if iinfo.block_size != 0 { iinfo.block_size } else { iinfo.frame_size } as usize;
220
221 self.sub_packet += 1;
222 if self.sub_packet < factor {
223 return Err(DemuxerError::TryAgain);
224 }
225
226 self.sub_packet = 0;
227
228 if self.deint == Deinterleaver::Sipro {
229 sipro_restore(&mut self.buf, factor, iinfo.frame_size as usize);
230 }
231
232 let mut frames_iter = self.buf.chunks(fsize);
233 let pkt0 = frames_iter.next().unwrap();
234
235 let pkt_ts = NATimeInfo::new(None, None, None, tb_num, tb_den);
236 for pkts in frames_iter {
237 let pkt = NAPacket::new(stream.clone(), pkt_ts, true, pkts.to_vec());
238 queued_packets.push(pkt);
239 }
240 queued_packets.reverse();
241 Ok(NAPacket::new(stream, ts, true, pkt0.to_vec()))
242 }
243 }
244
245 fn sipro_restore(buf: &mut [u8], factor: usize, fsize: usize) {
246 let stride = factor * fsize * 2 / 96;
247 for i in 0..38 {
248 let mut sidx = (RM_SIPRO_SWAPS[i][0] as usize) * stride;
249 let mut didx = (RM_SIPRO_SWAPS[i][1] as usize) * stride;
250 for _ in 0..stride {
251 let in0 = buf[sidx >> 1];
252 let in1 = buf[didx >> 1];
253 let nib0 = (in0 >> ((sidx & 1) * 4)) & 0xF;
254 let nib1 = (in1 >> ((didx & 1) * 4)) & 0xF;
255
256 buf[didx >> 1] = (nib0 << (4 * (didx & 1))) | (in1 & (0xF << (4 * (!didx & 1))));
257 buf[sidx >> 1] = (nib1 << (4 * (sidx & 1))) | (in0 & (0xF << (4 * (!sidx & 1))));
258
259 sidx += 1;
260 didx += 1;
261 }
262 }
263 }
264
265 struct SubstreamInfo {
266 id: u32,
267 map: Vec<u16>,
268 str_ids: Vec<u32>,
269 }
270
271 struct MLTIMapper {
272 sub_info: Vec<SubstreamInfo>,
273 sstr_id: u32,
274 }
275
276 impl MLTIMapper {
277 fn new() -> Self {
278 MLTIMapper {
279 sub_info: Vec::new(),
280 sstr_id: 0x10000,
281 }
282 }
283 fn add_stream(&mut self, stream_no: u32) {
284 let ssinfo = SubstreamInfo { id: stream_no, map: Vec::new(), str_ids: Vec::new() };
285 self.sub_info.push(ssinfo);
286 }
287 fn get_substream_no(&self) -> u32 {
288 self.sstr_id - 1
289 }
290 fn find_idx(&self, stream_no: u32) -> Option<usize> {
291 self.sub_info.iter().position(|x| x.id == stream_no)
292 }
293 fn add_map_rule(&mut self, map_ss: u16) {
294 let idx = self.sub_info.len() - 1;
295 self.sub_info[idx].map.push(map_ss);
296 }
297 fn add_substream(&mut self) {
298 let idx = self.sub_info.len() - 1;
299 self.sub_info[idx].str_ids.push(self.sstr_id);
300 self.sstr_id += 1;
301 }
302 fn is_mlti_stream(&self, stream_no: u32) -> bool {
303 self.find_idx(stream_no).is_some()
304 }
305 fn find_substream(&self, stream_no: u32, grp: u16) -> Option<u32> {
306 if let Some(idx) = self.find_idx(stream_no) {
307 if (grp as usize) < self.sub_info[idx].map.len() {
308 let sub_id = self.sub_info[idx].map[grp as usize] as usize;
309 if sub_id < self.sub_info[idx].str_ids.len() {
310 return Some(self.sub_info[idx].str_ids[sub_id]);
311 }
312 }
313 }
314 None
315 }
316 }
317
318 enum RMStreamType {
319 Audio(RMAudioStream),
320 Video(RMVideoStream),
321 Logical,
322 Unknown,
323 }
324
325 struct CommonStreamData {
326 streams: Vec<RMStreamType>,
327 str_ids: Vec<u32>,
328 mlti_mapper: MLTIMapper,
329 }
330
331 impl CommonStreamData {
332 fn new() -> Self {
333 CommonStreamData {
334 streams: Vec::new(),
335 str_ids: Vec::new(),
336 mlti_mapper: MLTIMapper::new(),
337 }
338 }
339 fn get_stream_id(&self, str_no: u32, pkt_grp: u16) -> u32 {
340 if !self.mlti_mapper.is_mlti_stream(str_no) {
341 str_no
342 } else {
343 self.mlti_mapper.find_substream(str_no, pkt_grp).unwrap()
344 }
345 }
346 fn find_stream(&self, stream_id: u32) -> Option<usize> {
347 self.str_ids.iter().position(|x| *x == stream_id)
348 }
349 }
350
351 struct RealMediaDemuxer<'a> {
352 src: &'a mut ByteReader<'a>,
353 data_pos: u64,
354 data_end: u64,
355 next_data: u64,
356 data_ver: u16,
357 num_packets: u32,
358 cur_packet: u32,
359
360 str_data: CommonStreamData,
361
362 data_chunks: Vec<(u64, u32, u16)>,
363 cur_data_chunk: usize,
364
365 queued_pkts: Vec<NAPacket>,
366 slice_buf: Vec<u8>,
367 }
368
369 fn find_codec_name(registry: &[(&[u8;4], &'static str)], fcc: u32) -> &'static str {
370 for &(fourcc, name) in registry {
371 if mktag!(fourcc) == fcc { return name; }
372 }
373 "unknown"
374 }
375
376 fn read_14or30(src: &mut ByteReader) -> DemuxerResult<(bool, u32)> {
377 let tmp = src.read_u16be()?;
378 let flag = (tmp & 0x8000) != 0;
379 if (tmp & 0x4000) == 0x4000 {
380 Ok((flag, ((tmp & 0x3FFF) as u32)))
381 } else {
382 let val = ((tmp as u32) << 16) | (src.read_u16be()? as u32);
383 Ok((flag, val & 0x3FFFFFFF))
384 }
385 }
386
387 fn read_video_buf(src: &mut ByteReader, stream: NAStreamRef, ts: u32, keyframe: bool, frame_size: usize) -> DemuxerResult<NAPacket> {
388 let size = (frame_size as usize) + 9;
389 let mut vec: Vec<u8> = vec![0; size];
390 //v[0] = 0; // 1 slice
391 vec[4] = 1;
392 src.read_buf(&mut vec[9..])?;
393
394 let (tb_num, tb_den) = stream.get_timebase();
395 let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den);
396 Ok(NAPacket::new(stream, ts, keyframe, vec))
397 }
398
399 fn read_multiple_frame(src: &mut ByteReader, stream: NAStreamRef, keyframe: bool, skip_mtype: bool) -> DemuxerResult<NAPacket> {
400 if !skip_mtype {
401 let mtype = src.read_byte()?;
402 validate!(mtype == 0xC0);
403 }
404 let (_, frame_size) = read_14or30(src)?;
405 let (_, timestamp) = read_14or30(src)?;
406 let _seq_no = src.read_byte()?;
407 //println!(" multiple frame size {} ts {} seq {}", frame_size, timestamp, seq_no);
408
409 read_video_buf(src, stream, timestamp, keyframe, frame_size as usize)
410 }
411
412 struct RMDemuxCommon {}
413
414 impl RMDemuxCommon {
415 fn parse_stream_info(str_data: &mut CommonStreamData, strmgr: &mut StreamManager, stream_no: u32, edata: &[u8]) -> DemuxerResult<bool> {
416 let mut is_mlti = false;
417 let mut mr = MemoryReader::new_read(edata);
418 let mut src = ByteReader::new(&mut mr);
419 let tag = src.read_u32be()?;
420 let tag2 = src.peek_u32be()?;
421 //println!("tag1 {:X} tag2 {:X}", tag, tag2);
422 if tag == mktag!('.', 'r', 'a', 0xFD) {
423 Self::parse_audio_stream(strmgr, &mut str_data.streams, stream_no, &mut src, edata)?;
424 } else if ((tag2 == mktag!('V', 'I', 'D', 'O')) || (tag2 == mktag!('I', 'M', 'A', 'G'))) && ((tag as usize) <= edata.len()) {
425 Self::parse_video_stream(strmgr, &mut str_data.streams, stream_no, &mut src, edata, tag2)?;
426 } else if tag == mktag!(b"LSD:") {
427 let extradata = Some(edata.to_owned());
428
429 src.read_skip(4)?; //version
430 let channels = src.read_u16be()?;
431 let samp_size = src.read_u16be()?;
432 let sample_rate = src.read_u32be()?;
433
434 println!("LSD sr {}, {} ch", sample_rate, channels);
435 let soniton = NASoniton::new(samp_size as u8, SONITON_FLAG_SIGNED);
436 let ahdr = NAAudioInfo::new(sample_rate, channels as u8, soniton, 1);
437 let nainfo = NACodecInfo::new("ralf", NACodecTypeInfo::Audio(ahdr), extradata);
438 let res = strmgr.add_stream(NAStream::new(StreamType::Audio, stream_no as u32, nainfo, 1, 1000));
439 if res.is_none() { return Err(MemoryError); }
440 let astr = RMAudioStream::new(None);
441 str_data.streams.push(RMStreamType::Audio(astr));
442 } else if tag == mktag!(b"MLTI") {
443 is_mlti = true;
444 let num_rules = src.read_u16be()? as usize;
445 let mut max_sub = 0;
446 str_data.mlti_mapper.add_stream(stream_no);
447 for _ in 0..num_rules {
448 let substr = src.read_u16be()?;
449 max_sub = max_sub.max(substr);
450 str_data.mlti_mapper.add_map_rule(substr);
451 }
452 let num_substreams = src.read_u16be()? as usize;
453 validate!(num_substreams > (max_sub as usize));
454 for _ in 0..num_substreams {
455 let hdr_size = src.read_u32be()? as usize;
456 validate!(hdr_size > 8);
457 let pos = src.tell() as usize;
458 src.read_skip(hdr_size)?;
459 str_data.mlti_mapper.add_substream();
460 {
461 let hdrsrc = &edata[pos..][..hdr_size];
462 let mut mr = MemoryReader::new_read(hdrsrc);
463 let mut hsrc = ByteReader::new(&mut mr);
464
465 let tag = hsrc.read_u32be()?;
466 let tag2 = hsrc.peek_u32be()?;
467 let stream_no = str_data.mlti_mapper.get_substream_no();
468 //todo check that all substreams are of the same type");
469 if tag == mktag!('.', 'r', 'a', 0xFD) {
470 Self::parse_audio_stream(strmgr, &mut str_data.streams, stream_no, &mut hsrc, hdrsrc)?;
471 } else if (tag2 == mktag!('V', 'I', 'D', 'O')) && ((tag as usize) <= hdr_size) {
472 Self::parse_video_stream(strmgr, &mut str_data.streams, stream_no, &mut hsrc, hdrsrc, tag2)?;
473 } else {
474 println!("unknown MLTI substream {:08X} / {:08X}", tag, tag2);
475 return Err(DemuxerError::InvalidData);
476 }
477 str_data.str_ids.push(stream_no);
478 }
479 }
480 } else {
481 str_data.streams.push(RMStreamType::Logical);
482 }
483 Ok(is_mlti)
484 }
485 fn parse_audio_stream(strmgr: &mut StreamManager, streams: &mut Vec<RMStreamType>, stream_no: u32, src: &mut ByteReader, edata_: &[u8]) -> DemuxerResult<()> {
486 let ver = src.read_u16be()?;
487 let ainfo = match ver {
488 3 => {
489 parse_aformat3(src)?
490 },
491 4 => {
492 parse_aformat4(src)?
493 },
494 5 => {
495 parse_aformat5(src)?
496 },
497 _ => {
498 println!("unknown version {}", ver);
499 return Err(DemuxerError::InvalidData);
500 },
501 };
502 println!(" got ainfo {:?}", ainfo);
503 let cname = find_codec_name(RM_AUDIO_CODEC_REGISTER, ainfo.fcc);
504 let blk_size = if ainfo.fcc != mktag!(b"sipr") {
505 ainfo.granularity as usize
506 } else {
507 validate!(ainfo.flavor <= 3);
508 RM_SIPRO_BLOCK_SIZES[ainfo.flavor as usize]
509 };
510 let srate = ainfo.sample_rate;
511 let soniton = NASoniton::new(ainfo.sample_size as u8, SONITON_FLAG_SIGNED);
512 let ahdr = NAAudioInfo::new(srate, ainfo.channels as u8, soniton, blk_size);
513 let extradata = if ainfo.edata_size == 0 {
514 None
515 } else {
516 let eslice = &edata_[(src.tell() as usize)..];
517 Some(eslice.to_vec())
518 };
519 let nainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), extradata);
520 let res = strmgr.add_stream(NAStream::new(StreamType::Audio, stream_no as u32, nainfo, 1, 1000));
521 if res.is_none() { return Err(MemoryError); }
522
523 let astr = RMAudioStream::new(ainfo.ileave_info);
524 streams.push(RMStreamType::Audio(astr));
525 Ok(())
526 }
527 #[allow(unused_variables)]
528 fn parse_video_stream(strmgr: &mut StreamManager, streams: &mut Vec<RMStreamType>, stream_no: u32, src: &mut ByteReader, edata_: &[u8], tag2: u32) -> DemuxerResult<()> {
529 src.read_skip(4)?;
530 let fcc = src.read_u32be()?;
531 let width = src.read_u16be()? as usize;
532 let height = src.read_u16be()? as usize;
533 let bpp = src.read_u16be()?;
534 let pad_w = src.read_u16be()?;
535 let pad_h = src.read_u16be()?;
536 let _fps;
537 if tag2 == mktag!('V', 'I', 'D', 'O') {
538 _fps = src.read_u32be()?;
539 } else {
540 _fps = 0x10000;
541 }
542 let extradata: Option<Vec<u8>>;
543 if src.left() > 0 {
544 let eslice = &edata_[(src.tell() as usize)..];
545 extradata = Some(eslice.to_vec());
546 } else {
547 extradata = None;
548 }
549 let cname = find_codec_name(RM_VIDEO_CODEC_REGISTER, fcc);
550
551 let vhdr = NAVideoInfo::new(width, height, false, RGB24_FORMAT);
552 let vinfo = NACodecInfo::new(cname, NACodecTypeInfo::Video(vhdr), extradata);
553 let res = strmgr.add_stream(NAStream::new(StreamType::Video, stream_no as u32, vinfo, 1, 1000));
554 if res.is_none() { return Err(DemuxerError::MemoryError); }
555
556 let vstr = RMVideoStream::new();
557 streams.push(RMStreamType::Video(vstr));
558 Ok(())
559 }
560 #[allow(unused_variables)]
561 fn parse_packet_payload(src: &mut ByteReader, rmstream: &mut RMStreamType, stream: NAStreamRef, slice_buf: &mut Vec<u8>, queued_pkts: &mut Vec<NAPacket>, keyframe: bool, ts: u32, payload_size: usize) -> DemuxerResult<NAPacket> {
562 match rmstream {
563 RMStreamType::Video(ref mut vstr) => {
564
565 let pos = src.tell();
566 let b0 = src.read_byte()?;
567 match b0 >> 6 {
568 0 => { // partial frame
569 let b1 = src.read_byte()?;
570 let hdr1 = ((b0 as u16) << 8) | (b1 as u16);
571 let num_pkts = ((hdr1 >> 7) & 0x7F) as usize;
572 let packet_num = hdr1 & 0x7F;
573 let (_, frame_size) = read_14or30(src)?;
574 let (_, off) = read_14or30(src)?;
575 let seq_no = src.read_byte()?;
576 //println!(" mode 0 pkt {}/{} off {}/{} seq {}", packet_num, num_pkts, off, frame_size, seq_no);
577 let hdr_skip = (src.tell() - pos) as usize;
578
579 let slice_size = (payload_size - hdr_skip) as usize;
580 slice_buf.resize(slice_size, 0);
581 src.read_buf(slice_buf.as_mut_slice())?;
582 if packet_num == 1 {
583 vstr.start_slice(num_pkts, frame_size as usize, slice_buf.as_slice());
584 } else {
585 vstr.add_slice(packet_num as usize, slice_buf.as_slice())?;
586 }
587 if (packet_num as usize) < num_pkts {
588 return Err(DemuxerError::TryAgain);
589 }
590 //todo: check if full frame is received
591 let (tb_num, tb_den) = stream.get_timebase();
592 let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den);
593 let pkt = NAPacket::new(stream, ts, keyframe, vstr.get_frame_data());
594 Ok(pkt)
595 },
596 1 => { // whole frame
597 let seq_no = src.read_byte()?;
598 //println!(" mode 1 seq {}", seq_no);
599 read_video_buf(src, stream, ts, keyframe, payload_size - 2)
600 },
601 2 => { // last partial frame
602 let b1 = src.read_byte()?;
603 let hdr1 = ((b0 as u16) << 8) | (b1 as u16);
604 let num_pkts = ((hdr1 >> 7) & 0x7F) as usize;
605 let packet_num = hdr1 & 0x7F;
606 let (_, frame_size) = read_14or30(src)?;
607 let (_, tail_size) = read_14or30(src)?;
608 let seq_no = src.read_byte()?;
609 //println!(" mode 2 pkt {}/{} tail {}/{} seq {}", packet_num, num_pkts, tail_size, frame_size, seq_no);
610 slice_buf.resize(tail_size as usize, 0);
611 src.read_buf(slice_buf.as_mut_slice())?;
612 if packet_num == 1 && frame_size == tail_size {
613 vstr.start_slice(num_pkts, frame_size as usize, slice_buf.as_slice());
614 } else {
615 vstr.add_slice(packet_num as usize, slice_buf.as_slice())?;
616 }
617
618 while src.tell() < pos + (payload_size as u64) {
619 let res = read_multiple_frame(src, stream.clone(), false, false);
620 if res.is_err() { break; }
621 queued_pkts.push(res.unwrap());
622 }
623 queued_pkts.reverse();
624 let (tb_num, tb_den) = stream.get_timebase();
625 let ts = NATimeInfo::new(Some(ts as u64), None, None, tb_num, tb_den);
626 let pkt = NAPacket::new(stream, ts, keyframe, vstr.get_frame_data());
627 Ok(pkt)
628 },
629 _ => { // multiple frames
630 //println!(" mode 3");
631 let res = read_multiple_frame(src, stream.clone(), keyframe, true);
632 if res.is_err() { return res; }
633 while src.tell() < pos + (payload_size as u64) {
634 let res = read_multiple_frame(src, stream.clone(), false, false);
635 if res.is_err() { break; }
636 queued_pkts.push(res.unwrap());
637 }
638 queued_pkts.reverse();
639 res
640 },
641 }
642 },
643 RMStreamType::Audio(ref mut astr) => {
644 astr.read_apackets(queued_pkts, src, stream, ts, keyframe, payload_size)
645 },
646 _ => {
647 src.read_skip(payload_size)?;
648 Err(DemuxerError::InvalidData)
649 },
650 }
651 }
652 }
653
654 impl<'a> DemuxCore<'a> for RealMediaDemuxer<'a> {
655 fn open(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> {
656 self.read_header(strmgr, seek_idx)?;
657 Ok(())
658 }
659
660 #[allow(unused_variables)]
661 fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
662 if !self.queued_pkts.is_empty() {
663 let pkt = self.queued_pkts.pop().unwrap();
664 return Ok(pkt);
665 }
666 loop {
667 if (self.cur_packet >= self.num_packets) || (self.src.tell() >= self.data_end) {
668 self.cur_data_chunk += 1;
669 if self.cur_data_chunk < self.data_chunks.len() {
670 let (pos, _, _) = self.data_chunks[self.cur_data_chunk];
671 self.src.seek(SeekFrom::Start(pos))?;
672 let res = read_chunk(self.src);
673 if let Ok((id, size, ver)) = res {
674 self.data_pos = self.src.tell();
675 self.data_ver = ver;
676 self.data_end = self.data_pos + (size as u64);
677 if self.parse_data_start().is_ok() {
678 continue;
679 }
680 }
681 }
682 return Err(DemuxerError::EOF);
683 }
684
685 let pkt_start = self.src.tell();
686 let ver = self.src.read_u16be()?;
687 validate!(ver <= 1);
688 let len = self.src.read_u16be()? as usize;
689 let str_no = self.src.read_u16be()? as u32;
690 let ts = self.src.read_u32be()?;
691 let pkt_grp;
692 let flags;
693 if ver == 0 {
694 pkt_grp = self.src.read_byte()? as u16;
695 flags = self.src.read_byte()?;
696 } else {
697 //asm_rule = self.src.read_u16be()?;
698 //asm_flags = self.src.read_byte()?;
699 self.src.read_skip(2)?;
700 pkt_grp = 0;
701 self.src.read_skip(1)?;
702 flags = 0;
703 }
704 let hdr_size = self.src.tell() - pkt_start;
705 //println!("packet @{:X} size {} for {} ts {} grp {} flags {:X}", pkt_start, len, str_no, ts, pkt_grp, flags);
706 self.cur_packet += 1;
707
708 let payload_size = len - (hdr_size as usize);
709
710 let stream_id = self.str_data.get_stream_id(str_no as u32, pkt_grp);
711 let sr = self.str_data.find_stream(stream_id);
712 if sr.is_none() {
713 //println!("stream {} not found", str_no);
714 self.src.read_skip(payload_size)?;
715 return Err(DemuxerError::InvalidData);
716 }
717 let str_id = sr.unwrap();
718
719 let streamres = strmgr.get_stream_by_id(stream_id);
720 if streamres.is_none() {
721 self.src.read_skip(payload_size)?;
722 continue;
723 }
724 let stream = streamres.unwrap();
725 //println!(" stream {}", str_id);
726 if strmgr.is_ignored_id(stream_id) {
727 self.src.read_skip(payload_size)?;
728 continue;
729 }
730 //todo skip unwanted packet
731 let keyframe = (flags & KEYFRAME_FLAG) != 0;
732
733 let ret = RMDemuxCommon::parse_packet_payload(&mut self.src, &mut self.str_data.streams[str_id], stream, &mut self.slice_buf, &mut self.queued_pkts, keyframe, ts, payload_size);
734 if let Err(DemuxerError::TryAgain) = ret {
735 continue;
736 } else {
737 return ret;
738 }
739 }
740 }
741
742 #[allow(unused_variables)]
743 fn seek(&mut self, time: NATimePoint, seek_idx: &SeekIndex) -> DemuxerResult<()> {
744 self.queued_pkts.clear();
745 let ret = seek_idx.find_pos(time);
746 if ret.is_none() {
747 return Err(DemuxerError::SeekError);
748 }
749 let ret = ret.unwrap();
750 let seek_pos = ret.pos;
751 for (pos, size, ver) in self.data_chunks.iter() {
752 if seek_pos < *pos { continue; }
753 let end = *pos + (*size as u64);
754 if seek_pos < end {
755 self.cur_packet = 0;
756 self.data_pos = seek_pos;
757 self.data_ver = *ver;
758 self.data_end = end;
759 self.src.seek(SeekFrom::Start(seek_pos))?;
760 return Ok(());
761 }
762 }
763 Err(DemuxerError::SeekError)
764 }
765 }
766
767 impl<'a> NAOptionHandler for RealMediaDemuxer<'a> {
768 fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
769 fn set_options(&mut self, _options: &[NAOption]) { }
770 fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
771 }
772
773 fn read_chunk(src: &mut ByteReader) -> DemuxerResult<(u32, u32, u16)> {
774 let id = src.read_u32be()?;
775 if id == 0 { return Ok((0, 0, 0)); }
776 let size = src.read_u32be()?;
777 if size == 0 {
778 let ver = src.read_u16be()?;
779 validate!(ver <= 2);
780 return Ok((id, 0x0FFFFFFF, ver));
781 }
782 validate!(size >= 10);
783 let ver = src.read_u16be()?;
784 validate!(ver <= 2);
785 Ok((id, size, ver))
786 }
787
788 #[derive(Clone,Copy,Debug)]
789 struct InterleaveInfo {
790 id: u32,
791 factor: u16,
792 block_size: u16,
793 frame_size: u16,
794 }
795
796 #[derive(Clone,Copy,Debug)]
797 struct RealAudioInfo {
798 fcc: u32,
799 sample_rate: u32,
800 sample_size: u16,
801 flavor: u16,
802 channels: u16,
803 channel_mask: u32,
804 granularity: u32,
805 bytes_per_minute: u32,
806 total_bytes: u32,
807 edata_size: u32,
808 ileave_info: Option<InterleaveInfo>
809 }
810
811 fn skip_ra_metadata(src: &mut ByteReader) -> DemuxerResult<()> {
812 let title_len = src.read_byte()? as usize;
813 src.read_skip(title_len)?;
814 let author_len = src.read_byte()? as usize;
815 src.read_skip(author_len)?;
816 let copywrong_len = src.read_byte()? as usize;
817 src.read_skip(copywrong_len)?;
818 let comment_len = src.read_byte()? as usize;
819 src.read_skip(comment_len)?;
820 Ok(())
821 }
822
823 #[allow(unused_variables)]
824 fn parse_aformat3(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> {
825 let start = src.tell();
826 let header_len = src.read_u16be()?;
827 validate!(header_len >= 24);
828 let flavor = src.read_u16be()?;
829 let granularity = src.read_u32be()?;
830 let bytes_per_minute = src.read_u32be()?;
831 let total_bytes = src.read_u32be()?;
832
833 skip_ra_metadata(src)?;
834
835 let _can_copy = src.read_byte()?;
836 let fcc_len = src.read_byte()?;
837 validate!(fcc_len == 4);
838 let fcc = src.read_u32be()?;
839
840 let end = src.tell();
841 validate!(end - start <= (header_len as u64) + 2);
842
843 Ok(RealAudioInfo {
844 fcc, flavor,
845 sample_rate: 8000, sample_size: 16, channels: 1, channel_mask: 0,
846 granularity, bytes_per_minute,
847 total_bytes, edata_size: 0,
848 ileave_info: None,
849 })
850 }
851
852 #[allow(unused_variables)]
853 fn parse_aformat4(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> {
854 let start = src.tell();
855 src.read_skip(2)?; // zeroes
856 let id = src.read_u32be()?;
857 validate!(id == mktag!(b".ra4"));
858 let data_size = src.read_u32be()?;
859 let _ver4 = src.read_u16be()?; // should be 4
860 let header_size = src.read_u32be()?;
861 let flavor = src.read_u16be()?;
862 let granularity = src.read_u32be()?;
863 let total_bytes = src.read_u32be()?;
864 let bytes_per_minute = src.read_u32be()?;
865 let _bytes_per_minute2 = src.read_u32be()?;
866 let ileave_factor = src.read_u16be()?;
867 let ileave_block_size = src.read_u16be()?;
868 let _user_data = src.read_u16be()?;
869 let sample_rate = src.read_u32be()?;
870 let sample_size = src.read_u32be()?;
871 let channels = src.read_u16be()?;
872 let interleaver_id_len = src.read_byte()?;
873 validate!(interleaver_id_len == 4);
874 let interleaver_id = src.read_u32be()?;
875 let fcc_len = src.read_byte()?;
876 validate!(fcc_len == 4);
877 let fcc = src.read_u32be()?;
878 let is_interleaved = src.read_byte()?;
879 let _can_copy = src.read_byte()?;
880 let _stream_type = src.read_byte()?;
881
882 skip_ra_metadata(src)?;
883
884 let end = src.tell();
885 validate!(end - start <= (header_size as u64) + 10);
886
887 let ileave_info = if is_interleaved != 0 {
888 Some(InterleaveInfo {
889 id: interleaver_id, factor: ileave_factor, block_size: granularity as u16,
890 frame_size: ileave_block_size,
891 })
892 } else {
893 None
894 };
895
896 Ok(RealAudioInfo {
897 fcc, flavor,
898 sample_rate, sample_size: sample_size as u16, channels, channel_mask: 0,
899 granularity, bytes_per_minute,
900 total_bytes: total_bytes & 0xFFFFFF, edata_size: 0,
901 ileave_info,
902 })
903 }
904
905 #[allow(unused_variables)]
906 fn parse_aformat5(src: &mut ByteReader) -> DemuxerResult<RealAudioInfo> {
907 let start = src.tell();
908 src.read_skip(2)?; // zeroes
909 let id = src.read_u32be()?;
910 validate!((id == mktag!(b".ra5")) || (id == mktag!(b".ra4")));
911 let data_size = src.read_u32be()?;
912 let _ver5 = src.read_u16be()?; // should be 5
913 let header_size = src.read_u32be()?;
914 let flavor = src.read_u16be()?;
915 let granularity = src.read_u32be()?;
916 let total_bytes = src.read_u32be()?;
917 let bytes_per_minute = src.read_u32be()?;
918 let _bytes_per_minute2 = src.read_u32be()?;
919 let ileave_factor = src.read_u16be()?;
920 let frame_size = src.read_u16be()?;
921 let ileave_block_size = src.read_u16be()?;
922 let user_data = src.read_u32be()?;
923 let _sample_rate1 = src.read_u16be()?;
924 let sample_rate = src.read_u32be()?;
925 let sample_size = src.read_u32be()?;
926 let channels = src.read_u16be()?;
927 let interleaver_id = src.read_u32be()?;
928 let fcc = src.read_u32be()?;
929 let is_interleaved = src.read_byte()?;
930 let _can_copy = src.read_byte()?;
931 let _stream_type = src.read_byte()?;
932 let has_ileave_pattern = src.read_byte()?;
933 if has_ileave_pattern != 0 {
934 unimplemented!("ra5 interleave pattern");
935 }
936 let mut edata_size = src.read_u32be()?;
937 let end = src.tell();
938 if id == mktag!(b".ra5") {
939 validate!(end - start <= (header_size as u64) + 10);
940 // src.read_skip(((end - start) as usize) - (header_size as usize) - 10)?;
941 } else {
942 validate!(end - start <= (header_size as u64) + 15);
943 }
944
945 let ileave_info = if is_interleaved != 0 {
946 Some(InterleaveInfo {
947 id: interleaver_id, factor: ileave_factor, block_size: ileave_block_size, frame_size,
948 })
949 } else {
950 None
951 };
952 if (fcc == mktag!(b"raac")) || (fcc == mktag!(b"racp")) {
953 validate!(edata_size > 1);
954 edata_size -= 1;
955 src.read_skip(1)?;
956 }
957
958 Ok(RealAudioInfo {
959 fcc, flavor,
960 sample_rate, sample_size: sample_size as u16, channels, channel_mask: 0,
961 granularity, bytes_per_minute,
962 total_bytes: total_bytes & 0xFFFFFF, edata_size,
963 ileave_info,
964 })
965 }
966
967 const RMVB_HDR_SIZE: u32 = 18;
968 const RMVB_PROP_SIZE: u32 = 50;
969 const KEYFRAME_FLAG: u8 = 0x02;
970
971 impl<'a> RealMediaDemuxer<'a> {
972 fn new(io: &'a mut ByteReader<'a>) -> Self {
973 RealMediaDemuxer {
974 src: io,
975 data_pos: 0,
976 data_end: 0,
977 next_data: 0,
978 data_ver: 0,
979 num_packets: 0,
980 cur_packet: 0,
981 str_data: CommonStreamData::new(),
982 data_chunks: Vec::new(),
983 cur_data_chunk: 0,
984 queued_pkts: Vec::new(),
985 slice_buf: Vec::new(),
986 }
987 }
988 #[allow(unused_variables)]
989 fn read_header(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> {
990 let (id, size, ver) = read_chunk(self.src)?;
991 validate!((id == mktag!(b".RMF")) || (id == mktag!(b".RMP")));
992 validate!(size >= RMVB_HDR_SIZE);
993 let fver = self.src.read_u32be()?;
994 validate!(fver <= 1);
995 let num_hdr = self.src.read_u32be()? as usize;
996 validate!(num_hdr >= 1);
997 if size > RMVB_HDR_SIZE {
998 self.src.read_skip((size - RMVB_HDR_SIZE) as usize)?;
999 }
1000
1001 let (id, size, ver) = read_chunk(self.src)?;
1002 let prop_size = if ver == 0 { RMVB_PROP_SIZE } else { RMVB_PROP_SIZE + 4 };
1003 validate!(size >= prop_size);
1004 validate!((ver == 0) || (ver == 2));
1005 let maxbr = self.src.read_u32be()?;
1006 let avgbr = self.src.read_u32be()?;
1007 let maxps = self.src.read_u32be()?;
1008 let avgps = self.src.read_u32be()?;
1009 let num_pkt = self.src.read_u32be()? as usize;
1010 let duration = self.src.read_u32be()?;
1011 let preroll = self.src.read_u32be()?;
1012 if ver == 2 {
1013 self.src.read_skip(4)?;
1014 }
1015 let idx_off = self.src.read_u32be()?;
1016 let data_off = self.src.read_u32be()?;
1017 let num_streams = self.src.read_u16be()? as usize;
1018 let flags = self.src.read_u16be()?;
1019 if size > prop_size {
1020 self.src.read_skip((size - prop_size) as usize)?;
1021 }
1022
1023 for _ in 0..num_hdr {
1024 if self.src.is_eof() {
1025 //warn maybe?
1026 break;
1027 }
1028 let res = self.parse_chunk(strmgr, seek_idx);
1029 match res {
1030 Ok(last) => { if last { break; } },
1031 Err(DemuxerError::IOError) => { break; },
1032 Err(etype) => {
1033 if self.data_chunks.is_empty() { // data is not found, report error
1034 return Err(etype);
1035 }
1036 },
1037 };
1038 }
1039 //println!("now @ {:X} / {}", self.src.tell(), self.data_pos);
1040 validate!(!self.data_chunks.is_empty());
1041 self.cur_data_chunk = 0;
1042 let (pos, size, ver) = self.data_chunks[self.cur_data_chunk];
1043 self.data_pos = pos;
1044 self.data_ver = ver;
1045 self.data_end = pos + (size as u64);
1046 self.src.seek(SeekFrom::Start(self.data_pos + 10))?;
1047 self.parse_data_start()?;
1048 Ok(())
1049 }
1050 fn parse_data_start(&mut self) -> DemuxerResult<()> {
1051 let num_packets = self.src.read_u32be()?;
1052 if self.data_ver == 2 {
1053 self.src.read_skip(12)?; // zeroes?
1054 }
1055 let next_data_hdr = self.src.read_u32be()?;
1056 self.num_packets = if num_packets > 0 { num_packets } else { 0xFFFFFF };
1057 self.cur_packet = 0;
1058 self.next_data = next_data_hdr as u64;
1059 Ok(())
1060 }
1061 fn parse_chunk(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<bool> {
1062 let (id, size, ver) = read_chunk(self.src)?;
1063 let end_pos = self.src.tell() - 10 + (size as u64);
1064
1065 validate!((ver == 0) || (ver == 2));
1066 if id == mktag!(b"CONT") { self.parse_content_desc()?; }
1067 else if id == mktag!(b"MDPR") { self.parse_mdpr(strmgr)?; }
1068 else if id == mktag!(b"DATA") {
1069 self.data_chunks.push((self.src.tell() - 10, size, ver));
1070 }
1071 else if id == mktag!(b"INDX") {
1072 if !seek_idx.skip_index {
1073 self.parse_index(seek_idx, (size as usize) - 10, ver)?;
1074 }
1075 }
1076 else if id == 0 { return Ok(true); }
1077 else { println!("unknown chunk type {:08X}", id); }
1078
1079 let cpos = self.src.tell();
1080 if cpos < end_pos {
1081 self.src.read_skip((end_pos - cpos) as usize)?;
1082 }
1083 Ok(false)
1084 }
1085 #[allow(unused_variables)]
1086 fn parse_content_desc(&mut self) -> DemuxerResult<()> {
1087 let title_len = self.src.read_u16be()? as usize;
1088 self.src.read_skip(title_len)?;
1089 let author_len = self.src.read_u16be()? as usize;
1090 self.src.read_skip(author_len)?;
1091 let copywrong_len = self.src.read_u16be()? as usize;
1092 self.src.read_skip(copywrong_len)?;
1093 let comment_len = self.src.read_u16be()? as usize;
1094 self.src.read_skip(comment_len)?;
1095 Ok(())
1096 }
1097 #[allow(unused_variables)]
1098 fn parse_mdpr(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
1099 let stream_no = self.src.read_u16be()? as u32;
1100 //todo check stream_no for duplicates
1101 let maxbr = self.src.read_u32be()?;
1102 let avgbr = self.src.read_u32be()?;
1103 let maxps = self.src.read_u32be()?;
1104 let avgps = self.src.read_u32be()?;
1105 let start = self.src.read_u32be()?;
1106 let preroll = self.src.read_u32be()?;
1107 let duration = self.src.read_u32be()?;
1108 let sname_size = self.src.read_byte()? as usize;
1109 let sname = read_string_size(self.src, sname_size)?;
1110 //println!("str #{} sname = {} pkts {}/{} start {} preroll {}", stream_no, sname, maxps, avgps, start, preroll);
1111 let mime_size = self.src.read_byte()? as usize;
1112 let mime = read_string_size(self.src, mime_size)?;
1113 //println!("mime = {}", mime);
1114 let edata_size = self.src.read_u32be()? as usize;
1115 let edata: Option<Vec<u8>> = if edata_size == 0 { None } else {
1116 let mut edvec: Vec<u8> = vec![0; edata_size];
1117 self.src.read_buf(&mut edvec)?;
1118 Some(edvec)
1119 };
1120 let mut is_mlti = false;
1121 if edata_size > 8 {
1122 if let Some(edata_) = edata {
1123 is_mlti = RMDemuxCommon::parse_stream_info(&mut self.str_data, strmgr, stream_no, &edata_)?;
1124 }
1125 } else {
1126 self.str_data.streams.push(RMStreamType::Unknown);
1127 }
1128 if !is_mlti {
1129 self.str_data.str_ids.push(stream_no);
1130 }
1131
1132 Ok(())
1133 }
1134 fn parse_index(&mut self, seek_idx: &mut SeekIndex, chunk_size: usize, ver: u16) -> DemuxerResult<()> {
1135 if ver != 0 && ver != 2 { return Ok(()); }
1136 let num_entries = self.src.read_u32be()? as usize;
1137 let str_id = self.src.read_u16be()? as u32;
1138 let _next_idx = self.src.read_u32be()?;
1139 if ver == 2 {
1140 self.src.read_u32be()?;
1141 }
1142 if ver == 0 {
1143 validate!(chunk_size == num_entries * 14 + 10);
1144 } else {
1145 validate!(chunk_size == num_entries * 18 + 14);
1146 }
1147 if num_entries == 0 { return Ok(()); }
1148
1149 seek_idx.add_stream(str_id);
1150 let idx = seek_idx.get_stream_index(str_id).unwrap();
1151 for _ in 0..num_entries {
1152 let iver = self.src.read_u16be()?;
1153 validate!(iver == ver);
1154 let ts = self.src.read_u32be()? as u64;
1155 if ver == 2 {
1156 self.src.read_u32be()?;
1157 }
1158 let pos = self.src.read_u32be()? as u64;
1159 let _pkt_no = self.src.read_u32be()?;
1160 idx.add_entry(SeekEntry { time: ts, pts: 0, pos });
1161 }
1162 idx.filled = true;
1163 seek_idx.mode = SeekIndexMode::Present;
1164 Ok(())
1165 }
1166 }
1167
1168 fn read_string_size(src: &mut ByteReader, size: usize) -> DemuxerResult<String> {
1169 let mut vec: Vec<u8> = Vec::new();
1170 for _ in 0..size {
1171 let c = src.read_byte()?;
1172 vec.push(c);
1173 }
1174 let str = String::from_utf8(vec);
1175 if str.is_ok() {
1176 Ok(str.unwrap())
1177 } else {
1178 Ok(String::new())
1179 }
1180 }
1181
1182 struct RealAudioDemuxer<'a> {
1183 src: &'a mut ByteReader<'a>,
1184 stream: Option<RMAudioStream>,
1185 data_start: u64,
1186 data_end: u64,
1187 blk_size: usize,
1188 queued_pkts: Vec<NAPacket>,
1189 }
1190
1191 impl<'a> DemuxCore<'a> for RealAudioDemuxer<'a> {
1192 #[allow(unused_variables)]
1193 fn open(&mut self, strmgr: &mut StreamManager, _seek_idx: &mut SeekIndex) -> DemuxerResult<()> {
1194 let magic = self.src.read_u32be()?;
1195 validate!(magic == mktag!(b".ra\xFD"));
1196 let ver = self.src.read_u16be()?;
1197 let ainfo = match ver {
1198 3 => {
1199 parse_aformat3(&mut self.src)?
1200 },
1201 4 => {
1202 parse_aformat4(&mut self.src)?
1203 },
1204 5 => {
1205 parse_aformat5(&mut self.src)?
1206 },
1207 _ => {
1208 println!("unknown version {}", ver);
1209 return Err(DemuxerError::InvalidData);
1210 },
1211 };
1212 println!(" got ainfo {:?}", ainfo);
1213 let cname = find_codec_name(RM_AUDIO_CODEC_REGISTER, ainfo.fcc);
1214 let blk_size = if ainfo.fcc != mktag!(b"sipr") {
1215 ainfo.granularity as usize
1216 } else {
1217 validate!(ainfo.flavor <= 3);
1218 RM_SIPRO_BLOCK_SIZES[ainfo.flavor as usize]
1219 };
1220 let srate = ainfo.sample_rate;
1221 let soniton = NASoniton::new(ainfo.sample_size as u8, SONITON_FLAG_SIGNED);
1222 let ahdr = NAAudioInfo::new(srate, ainfo.channels as u8, soniton, blk_size);
1223 let extradata = if ainfo.edata_size == 0 {
1224 None
1225 } else {
1226 let mut dta: Vec<u8> = vec![0; ainfo.edata_size as usize];
1227 self.src.read_buf(dta.as_mut_slice())?;
1228 Some(dta)
1229 };
1230 let nainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), extradata);
1231 let res = strmgr.add_stream(NAStream::new(StreamType::Audio, 0, nainfo, 1, srate));
1232 if res.is_none() { return Err(MemoryError); }
1233
1234 let astr = RMAudioStream::new(ainfo.ileave_info);
1235 self.data_start = self.src.tell();
1236 self.data_end = if ainfo.total_bytes > 0 { self.src.tell() + (ainfo.total_bytes as u64) } else { 0 };
1237 self.blk_size = blk_size;
1238 self.stream = Some(astr);
1239
1240 Ok(())
1241 }
1242
1243 fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
1244 if !self.queued_pkts.is_empty() {
1245 let pkt = self.queued_pkts.pop().unwrap();
1246 return Ok(pkt);
1247 }
1248 if (self.data_end != 0) && (self.src.tell() >= self.data_end) {
1249 return Err(DemuxerError::EOF);
1250 }
1251 let streamres = strmgr.get_stream_by_id(0);
1252 let stream = streamres.unwrap();
1253 if let Some(ref mut astr) = self.stream {
1254 loop {
1255 let ret = astr.read_apackets(&mut self.queued_pkts, &mut self.src, stream.clone(), 0, false, self.blk_size);
1256 if let Err(DemuxerError::TryAgain) = ret {
1257 continue;
1258 }
1259 return ret;
1260 }
1261 }
1262 Err(DemuxerError::NoSuchInput)
1263 }
1264
1265 #[allow(unused_variables)]
1266 fn seek(&mut self, time: NATimePoint, seek_idx: &SeekIndex) -> DemuxerResult<()> {
1267 Err(NotImplemented)
1268 }
1269 }
1270
1271 impl<'a> NAOptionHandler for RealAudioDemuxer<'a> {
1272 fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
1273 fn set_options(&mut self, _options: &[NAOption]) { }
1274 fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
1275 }
1276
1277 impl<'a> RealAudioDemuxer<'a> {
1278 fn new(io: &'a mut ByteReader<'a>) -> Self {
1279 RealAudioDemuxer {
1280 src: io,
1281 data_start: 0,
1282 data_end: 0,
1283 blk_size: 0,
1284 stream: None,
1285 queued_pkts: Vec::new(),
1286 }
1287 }
1288 }
1289
1290 enum IVRRecord {
1291 Invalid(u8),
1292 StreamProperties(usize),
1293 Packet { ts: u32, str: u32, flags: u32, len: usize, checksum: u32 },
1294 IntValue(Vec<u8>, u32),
1295 BinaryData(Vec<u8>, Vec<u8>),
1296 StringData(Vec<u8>, Vec<u8>),
1297 HeaderEnd,
1298 DataStart,
1299 DataEnd,
1300 }
1301
1302 impl IVRRecord {
1303 fn read_string(src: &mut ByteReader) -> DemuxerResult<Vec<u8>> {
1304 let len = src.read_u32be()? as usize;
1305 let mut val = vec![0; len];
1306 src.read_buf(val.as_mut_slice())?;
1307 Ok(val)
1308 }
1309
1310 fn read(src: &mut ByteReader) -> DemuxerResult<Self> {
1311 let code = src.read_byte()?;
1312 match code {
1313 1 => {
1314 let val = src.read_u32be()? as usize;
1315 Ok(IVRRecord::StreamProperties(val))
1316 },
1317 2 => {
1318 let ts = src.read_u32be()?;
1319 let str = src.read_u16be()? as u32;
1320 let flags = src.read_u32be()?;
1321 let len = src.read_u32be()? as usize;
1322 let chk = src.read_u32be()?;
1323 validate!((len > 0) && (len < (1 << 24)));
1324 Ok(IVRRecord::Packet { ts, str, flags, len, checksum: chk })
1325 },
1326 3 => {
1327 let name = Self::read_string(src)?;
1328 let len = src.read_u32be()?;
1329 validate!(len == 4);
1330 let val = src.read_u32be()?;
1331 Ok(IVRRecord::IntValue(name, val))
1332 },
1333 4 => {
1334 let name = Self::read_string(src)?;
1335 let len = src.read_u32be()? as usize;
1336 let mut val = vec![0; len];
1337 src.read_buf(val.as_mut_slice())?;
1338 Ok(IVRRecord::BinaryData(name, val))
1339 },
1340 5 => {
1341 let name = Self::read_string(src)?;
1342 let val = Self::read_string(src)?;
1343 Ok(IVRRecord::StringData(name, val))
1344 },
1345 6 => Ok(IVRRecord::HeaderEnd),
1346 7 => {
1347 src.read_skip(8)?; // always zero?
1348 Ok(IVRRecord::DataEnd)
1349 },
1350 8 => {
1351 src.read_skip(8)?; // always zero?
1352 Ok(IVRRecord::DataStart)
1353 },
1354 _ => Ok(IVRRecord::Invalid(code)),
1355 }
1356 }
1357 fn is_data_start(&self) -> bool {
1358 match *self {
1359 IVRRecord::DataStart => true,
1360 _ => false,
1361 }
1362 }
1363 }
1364
1365 impl fmt::Display for IVRRecord {
1366 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
1367 match *self {
1368 IVRRecord::Invalid(typ) => write!(f, "Invalid({:02X})", typ),
1369 IVRRecord::StreamProperties(num) =>
1370 write!(f, "({} stream properties)", num),
1371 IVRRecord::Packet { ts, str, flags, len, checksum } =>
1372 write!(f, "paket({}, {}, {:X}, {}, {})", ts, str, flags, len, checksum),
1373 IVRRecord::IntValue(ref name, val) =>
1374 write!(f, "({} = {})", String::from_utf8_lossy(name), val),
1375 IVRRecord::BinaryData(ref name, ref val) =>
1376 write!(f, "({} = {} bytes)", String::from_utf8_lossy(name), val.len()),
1377 IVRRecord::StringData(ref name, ref val) =>
1378 write!(f, "({} = {})", String::from_utf8_lossy(name), String::from_utf8_lossy(val)),
1379 IVRRecord::HeaderEnd => write!(f, "header end"),
1380 IVRRecord::DataEnd => write!(f, "data end"),
1381 IVRRecord::DataStart => write!(f, "data start"),
1382 }
1383 }
1384 }
1385
1386 struct RecordDemuxer {
1387 start_pos: u64,
1388 cur_pos: u64,
1389 start_str: u32,
1390 remap_ids: Vec<u32>,
1391 }
1392
1393 impl RecordDemuxer {
1394 fn new(pos: u64, start_str: u32) -> Self {
1395 RecordDemuxer {
1396 start_pos: pos,
1397 cur_pos: pos,
1398 start_str,
1399 remap_ids: Vec::new(),
1400 }
1401 }
1402 fn parse_header(&mut self, src: &mut ByteReader, strmgr: &mut StreamManager, str_data: &mut CommonStreamData) -> DemuxerResult<()> {
1403 src.seek(SeekFrom::Start(self.cur_pos))?;
1404 let magic = src.read_u32be()?;
1405 validate!(magic == mktag!(b".REC"));
1406 let _smth = src.read_byte()?;
1407 let num_entries = src.read_u32be()? as usize;
1408 for _ in 0..num_entries {
1409 let _rec = IVRRecord::read(src)?;
1410 //println!(" header rec {}", _rec);
1411 }
1412 let mut has_seek_table = false;
1413 let mut cur_str_no = 0;
1414 loop {
1415 let rec = IVRRecord::read(src)?;
1416 match rec {
1417 IVRRecord::HeaderEnd => { break; },
1418 IVRRecord::StreamProperties(num) => {
1419 let stream_no = cur_str_no + self.start_str;
1420 cur_str_no += 1;
1421 let mut parsed = false;
1422 let mut real_stream_no = 0;
1423 for _ in 0..num {
1424 let rec = IVRRecord::read(src)?;
1425 //println!(" strm property {}", rec);
1426 match rec {
1427 IVRRecord::IntValue(ref name, val) => {
1428 if name == b"StreamNumber\0" {
1429 real_stream_no = val;
1430 }
1431 },
1432 IVRRecord::BinaryData(ref name, ref val) => {
1433 if name == b"OpaqueData\0" {
1434 validate!(!parsed);
1435 let is_mlti = RMDemuxCommon::parse_stream_info(str_data, strmgr, stream_no, val)?;
1436 if !is_mlti {
1437 str_data.str_ids.push(stream_no);
1438 }
1439 parsed = true;
1440 }
1441 },
1442 IVRRecord::StringData(ref name, ref val) => {
1443 if (name == b"SeekType\0") && (val != b"None\0") {
1444 has_seek_table = true;
1445 }
1446 },
1447 _ => { return Err(DemuxerError::InvalidData); }
1448 };
1449 }
1450 if !parsed {
1451 str_data.streams.push(RMStreamType::Unknown);
1452 str_data.str_ids.push(stream_no);
1453 }
1454 self.remap_ids.push(real_stream_no);
1455 },
1456 _ => {println!(" unexpected {}", rec); return Err(DemuxerError::InvalidData); }
1457 };
1458 }
1459 println!(" now @ {:X}", src.tell());
1460 let off0 = src.read_u32be()? as u64;
1461 let _off1 = src.read_u32be()?;
1462 let _off2 = src.read_u32be()?;
1463 validate!(off0 + self.start_pos == src.tell());
1464 println!(" has seek tab: {}", has_seek_table);
1465 if has_seek_table {
1466 src.read_skip(4)?;
1467 let data_off = src.read_u32be()? as u64;
1468 println!(" new off {:X}", data_off);
1469 let pos = src.tell();
1470 validate!(data_off + self.start_pos > pos);
1471 src.read_skip((data_off + self.start_pos - pos) as usize)?;
1472 let rec = IVRRecord::read(src)?;
1473 validate!(rec.is_data_start());
1474 } else {
1475 let ntype = src.peek_byte()?;
1476 validate!((ntype == 2) || (ntype == 7)); // packet or data end, no start
1477 }
1478
1479 self.cur_pos = src.tell();
1480
1481 Ok(())
1482 }
1483 fn get_packet(&mut self, src: &mut ByteReader, str_data: &mut CommonStreamData, strmgr: &StreamManager, queued_pkts: &mut Vec<NAPacket>, slice_buf: &mut Vec<u8>) -> DemuxerResult<NAPacket> {
1484 src.seek(SeekFrom::Start(self.cur_pos))?;
1485 loop {
1486 let rec = IVRRecord::read(src)?;
1487 match rec {
1488 IVRRecord::Packet { ts, str, flags, len, .. } => {
1489 let payload_size = len;
1490 let sr = self.remap_ids.iter().position(|x| *x == str);
1491 validate!(sr.is_some());
1492 let str_no = self.start_str + (sr.unwrap() as u32);
1493 let pkt_grp = ((flags >> 8) & 0xFF) as u16;
1494 let stream_id = str_data.get_stream_id(str_no as u32, pkt_grp);
1495 let sr = str_data.find_stream(stream_id);
1496 if sr.is_none() {
1497 src.read_skip(payload_size)?;
1498 return Err(DemuxerError::InvalidData);
1499 }
1500 let str_id = sr.unwrap();
1501
1502 let streamres = strmgr.get_stream_by_id(stream_id);
1503 if streamres.is_none() {
1504 src.read_skip(payload_size)?;
1505 continue;
1506 }
1507 let stream = streamres.unwrap();
1508 if strmgr.is_ignored_id(stream_id) {
1509 src.read_skip(payload_size)?;
1510 continue;
1511 }
1512 let keyframe = false;
1513 let ret = RMDemuxCommon::parse_packet_payload(src, &mut str_data.streams[str_id], stream, slice_buf, queued_pkts, keyframe, ts, payload_size);
1514 if let Err(DemuxerError::TryAgain) = ret {
1515 continue;
1516 } else {
1517 self.cur_pos = src.tell();
1518 return ret;
1519 }
1520 },
1521 IVRRecord::DataEnd => return Err(DemuxerError::EOF),
1522 _ => return Err(DemuxerError::InvalidData),
1523 }
1524 }
1525 }
1526 }
1527
1528 struct RealIVRDemuxer<'a> {
1529 src: &'a mut ByteReader<'a>,
1530 recs: Vec<RecordDemuxer>,
1531 cur_rec: usize,
1532 queued_pkts: Vec<NAPacket>,
1533 slice_buf: Vec<u8>,
1534 str_data: CommonStreamData,
1535 }
1536
1537 impl<'a> DemuxCore<'a> for RealIVRDemuxer<'a> {
1538 #[allow(unused_variables)]
1539 fn open(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> {
1540 let magic = self.src.peek_u32be()?;
1541 if magic == mktag!(b".REC") {
1542 let mut rec = RecordDemuxer::new(0, 0);
1543 rec.parse_header(&mut self.src, strmgr, &mut self.str_data)?;
1544 self.recs.push(rec);
1545 } else if magic == mktag!(b".R1M") {
1546 println!("R1M kind");
1547 self.src.read_skip(4)?; // magic
1548 self.src.read_skip(3)?; // always 0, 1, 1 ?
1549 let _name = IVRRecord::read_string(&mut self.src)?;
1550 self.src.read_skip(1)?; // always 0?
1551 let len1 = self.src.read_u32be()? as u64;
1552 let off1 = self.src.read_u64be()?;
1553 let cpos = self.src.tell();
1554 validate!(off1 == len1 + cpos - 8);
1555 self.src.read_skip((off1 - cpos) as usize)?;
1556 loop {
1557 let typ = self.src.read_byte()?;
1558 println!(" at {:X} type {:02X}", self.src.tell(), typ);
1559 match typ {
1560 1 => {
1561 let len = self.src.read_u32be()?;
1562 self.src.read_skip(len as usize)?;
1563 },
1564 2 => {
1565 let len = self.src.read_u32be()? as u64;
1566 let pos = self.src.tell();
1567 if len > 0x20 {
1568 let num_streams = self.str_data.streams.len() as u32;
1569 let mut rec = RecordDemuxer::new(pos + 12, num_streams);
1570 rec.parse_header(&mut self.src, strmgr, &mut self.str_data)?;
1571 self.recs.push(rec);
1572 }
1573 self.src.seek(SeekFrom::Start(pos + len))?;
1574 },
1575 b'R' => {
1576 let mut buf: [u8; 2] = [0; 2];
1577 self.src.peek_buf(&mut buf)?;
1578 if (buf[0] == b'J') && (buf[1] == b'M') { // RJMx markers at the end of file
1579 break;
1580 } else {
1581 return Err(DemuxerError::InvalidData);
1582 }
1583 },
1584 _ => { return Err(DemuxerError::InvalidData); },
1585 };
1586 }
1587 } else {
1588 return Err(DemuxerError::InvalidData);
1589 }
1590
1591 Ok(())
1592 }
1593
1594 fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
1595 if !self.queued_pkts.is_empty() {
1596 let pkt = self.queued_pkts.pop().unwrap();
1597 return Ok(pkt);
1598 }
1599 loop {
1600 if self.cur_rec >= self.recs.len() { return Err(DemuxerError::EOF); }
1601 let res = self.recs[self.cur_rec].get_packet(&mut self.src, &mut self.str_data, strmgr, &mut self.queued_pkts, &mut self.slice_buf);
1602 if let Err(DemuxerError::EOF) = res {
1603 self.cur_rec += 1;
1604 } else {
1605 return res;
1606 }
1607 }
1608 }
1609
1610 #[allow(unused_variables)]
1611 fn seek(&mut self, time: NATimePoint, seek_idx: &SeekIndex) -> DemuxerResult<()> {
1612 Err(NotImplemented)
1613 }
1614 }
1615
1616 impl<'a> NAOptionHandler for RealIVRDemuxer<'a> {
1617 fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
1618 fn set_options(&mut self, _options: &[NAOption]) { }
1619 fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
1620 }
1621
1622 impl<'a> RealIVRDemuxer<'a> {
1623 fn new(io: &'a mut ByteReader<'a>) -> Self {
1624 RealIVRDemuxer {
1625 src: io,
1626 recs: Vec::new(),
1627 cur_rec: 0,
1628 queued_pkts: Vec::new(),
1629 slice_buf: Vec::new(),
1630 str_data: CommonStreamData::new(),
1631 }
1632 }
1633 }
1634
1635 static RM_VIDEO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[
1636 (b"RV10", "realvideo1"),
1637 (b"RV20", "realvideo2"),
1638 (b"RVTR", "realvideo2"),
1639 (b"RV30", "realvideo3"),
1640 (b"RV40", "realvideo4"),
1641 (b"RV60", "realvideo6"),
1642 (b"CLV1", "clearvideo_rm"),
1643 ];
1644
1645 static RM_AUDIO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[
1646 (b"lpcJ", "ra14.4"),
1647 (b"28_8", "ra28.8"),
1648 (b"cook", "cook"),
1649 (b"dnet", "ac3"),
1650 (b"sipr", "sipro"),
1651 (b"atrc", "atrac3"),
1652 (b"LSD:", "ralf"),
1653 (b"raac", "aac"),
1654 (b"racp", "aac"),
1655 ];
1656
1657 pub struct RealMediaDemuxerCreator { }
1658
1659 impl DemuxerCreator for RealMediaDemuxerCreator {
1660 fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
1661 Box::new(RealMediaDemuxer::new(br))
1662 }
1663 fn get_name(&self) -> &'static str { "realmedia" }
1664 }
1665
1666 pub struct RealAudioDemuxerCreator { }
1667
1668 impl DemuxerCreator for RealAudioDemuxerCreator {
1669 fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
1670 Box::new(RealAudioDemuxer::new(br))
1671 }
1672 fn get_name(&self) -> &'static str { "realaudio" }
1673 }
1674
1675 pub struct RealIVRDemuxerCreator { }
1676
1677 impl DemuxerCreator for RealIVRDemuxerCreator {
1678 fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
1679 Box::new(RealIVRDemuxer::new(br))
1680 }
1681 fn get_name(&self) -> &'static str { "real_ivr" }
1682 }
1683
1684 #[cfg(test)]
1685 mod test {
1686 use super::*;
1687 use std::fs::File;
1688
1689 #[test]
1690 fn test_rm_demux() {
1691 let mut file =
1692 File::open("assets/RV/rv10_dnet_640x352_realvideo_encoder_4.0.rm").unwrap();
1693 // File::open("assets/RV/rv20_cook_640x352_realproducer_plus_8.51.rm").unwrap();
1694 // File::open("assets/RV/rv20_svt_atrc_640x352_realproducer_plus_8.51.rm").unwrap();
1695 // File::open("assets/RV/rv30_atrc_384x208_realproducer_plus_8.51.rm").unwrap();
1696 // File::open("assets/RV/rv30_chroma_drift.rm").unwrap();
1697 // File::open("assets/RV/rv30_weighted_mc.rm").unwrap();
1698 // File::open("assets/RV/rv40_weighted_mc.rmvb").unwrap();
1699 // File::open("assets/RV/rv40_weighted_mc_2.rmvb").unwrap();
1700 // File::open("assets/RV/clv1_sipr_384x208_realvideo_encoder_4.0.rm").unwrap();
1701 // File::open("assets/RV/luckynight.rmvb").unwrap();
1702 // File::open("assets/RV/rv40_ralf.rmvb").unwrap();
1703 let mut fr = FileReader::new_read(&mut file);
1704 let mut br = ByteReader::new(&mut fr);
1705 let mut dmx = RealMediaDemuxer::new(&mut br);
1706 let mut sm = StreamManager::new();
1707 let mut si = SeekIndex::new();
1708 dmx.open(&mut sm, &mut si).unwrap();
1709
1710 loop {
1711 let pktres = dmx.get_frame(&mut sm);
1712 if let Err(e) = pktres {
1713 if e == DemuxerError::EOF { break; }
1714 panic!("error");
1715 }
1716 let pkt = pktres.unwrap();
1717 println!("Got {}", pkt);
1718 }
1719 //panic!("the end");
1720 }
1721 #[test]
1722 fn test_ra_demux() {
1723 let mut file =
1724 // File::open("assets/RV/welcome288.ra").unwrap();
1725 File::open("assets/RV/diemusik.ra").unwrap();
1726 let mut fr = FileReader::new_read(&mut file);
1727 let mut br = ByteReader::new(&mut fr);
1728 let mut dmx = RealAudioDemuxer::new(&mut br);
1729 let mut sm = StreamManager::new();
1730 let mut si = SeekIndex::new();
1731 dmx.open(&mut sm, &mut si).unwrap();
1732
1733 loop {
1734 let pktres = dmx.get_frame(&mut sm);
1735 if let Err(e) = pktres {
1736 if e == DemuxerError::EOF { break; }
1737 panic!("error");
1738 }
1739 let pkt = pktres.unwrap();
1740 println!("Got {}", pkt);
1741 }
1742 }
1743 #[test]
1744 fn test_ivr_demux() {
1745 let mut file =
1746 File::open("assets/RV/Opener_rm_hi.ivr").unwrap();
1747 // File::open("assets/RV/SherwinWilliamsCommercial.ivr").unwrap();
1748 let mut fr = FileReader::new_read(&mut file);
1749 let mut br = ByteReader::new(&mut fr);
1750 let mut dmx = RealIVRDemuxer::new(&mut br);
1751 let mut sm = StreamManager::new();
1752 let mut si = SeekIndex::new();
1753 dmx.open(&mut sm, &mut si).unwrap();
1754
1755 loop {
1756 let pktres = dmx.get_frame(&mut sm);
1757 if let Err(e) = pktres {
1758 if e == DemuxerError::EOF { break; }
1759 panic!("error");
1760 }
1761 let pkt = pktres.unwrap();
1762 println!("Got {}", pkt);
1763 }
1764 }
1765 }
NihAV is a research multimedia framework