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Commit | Line | Data |
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1 | use nihav_core::demuxers::*; | |
2 | use nihav_registry::register; | |
3 | use nihav_core::demuxers::DemuxerError::*; | |
4 | use std::str::FromStr; | |
5 | ||
6 | macro_rules! mktag { | |
7 | ($a:expr, $b:expr, $c:expr, $d:expr) => ({ | |
8 | (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32) | |
9 | }); | |
10 | ($arr:expr) => ({ | |
11 | (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32) | |
12 | }); | |
13 | } | |
14 | ||
15 | struct StreamState { | |
16 | strm_no: u8, | |
17 | got_strf: bool, | |
18 | strm_type: Option<StreamType>, | |
19 | } | |
20 | ||
21 | impl StreamState { | |
22 | fn new() -> Self { | |
23 | StreamState { strm_no: 0, got_strf: true, strm_type: None } | |
24 | } | |
25 | fn reset(&mut self) { | |
26 | self.strm_type = None; | |
27 | self.got_strf = true; | |
28 | self.strm_no += 1; | |
29 | } | |
30 | fn valid_state(&self) -> bool { | |
31 | match self.strm_type { | |
32 | None => self.got_strf, | |
33 | _ => false, | |
34 | } | |
35 | } | |
36 | } | |
37 | ||
38 | struct PalInfo { | |
39 | pal: Arc<[u8; 1024]>, | |
40 | changed: bool, | |
41 | stream_no: usize, | |
42 | } | |
43 | ||
44 | #[derive(Clone,Copy,Default)] | |
45 | struct RIFFSegment { | |
46 | pos: u64, | |
47 | size: usize, | |
48 | movi_pos: u64, | |
49 | movi_size: usize, | |
50 | } | |
51 | ||
52 | impl RIFFSegment { | |
53 | fn contains(&self, pos: u64) -> bool { | |
54 | pos >= self.movi_pos && pos < self.movi_pos + (self.movi_size as u64) | |
55 | } | |
56 | fn get_end(&self) -> u64 { | |
57 | self.pos + (self.size as u64) | |
58 | } | |
59 | } | |
60 | ||
61 | struct AVIDemuxer<'a> { | |
62 | src: &'a mut ByteReader<'a>, | |
63 | cur_frame: Vec<u64>, | |
64 | num_streams: u8, | |
65 | size: usize, | |
66 | movi_size: usize, | |
67 | movi_pos: u64, | |
68 | movi_orig: usize, | |
69 | sstate: StreamState, | |
70 | tb_num: u32, | |
71 | tb_den: u32, | |
72 | strm_duration: u32, | |
73 | key_offs: Vec<u64>, | |
74 | pal: Vec<PalInfo>, | |
75 | odml: bool, | |
76 | odml_idx: Vec<u64>, | |
77 | odml_riff: Vec<RIFFSegment>, | |
78 | iddx_pos: u64, | |
79 | odd_offset: bool, | |
80 | } | |
81 | ||
82 | #[derive(Debug,Clone,Copy,PartialEq)] | |
83 | enum RIFFTag { | |
84 | Chunk(u32), | |
85 | List(u32,u32), | |
86 | } | |
87 | ||
88 | struct RIFFParser { | |
89 | tag: RIFFTag, | |
90 | parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>, | |
91 | } | |
92 | ||
93 | impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { | |
94 | fn open(&mut self, strmgr: &mut StreamManager, seek_index: &mut SeekIndex) -> DemuxerResult<()> { | |
95 | self.read_header(strmgr, seek_index)?; | |
96 | Ok(()) | |
97 | } | |
98 | ||
99 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { | |
100 | if self.movi_size == 0 { | |
101 | if !self.odml { | |
102 | return Err(EOF); | |
103 | } | |
104 | self.try_next_odml_chunk()?; | |
105 | } | |
106 | let mut tag: [u8; 4] = [0; 4]; | |
107 | loop { | |
108 | if !self.odd_offset && (self.src.tell() & 1) == 1 { | |
109 | self.src.read_skip(1)?; | |
110 | self.movi_size -= 1; | |
111 | if self.movi_size == 0 { | |
112 | if !self.odml { | |
113 | return Err(EOF); | |
114 | } | |
115 | self.try_next_odml_chunk()?; | |
116 | } | |
117 | } | |
118 | let is_keyframe = self.key_offs.binary_search(&self.src.tell()).is_ok(); | |
119 | self.src.read_buf(&mut tag)?; | |
120 | let size = self.src.read_u32le()? as usize; | |
121 | if mktag!(tag) == mktag!(b"JUNK") { | |
122 | self.movi_size -= size + 8; | |
123 | self.src.read_skip(size)?; | |
124 | if self.movi_size == 0 { | |
125 | if !self.odml { | |
126 | return Err(EOF); | |
127 | } | |
128 | self.try_next_odml_chunk()?; | |
129 | } | |
130 | continue; | |
131 | } | |
132 | if mktag!(tag) == mktag!(b"LIST") { | |
133 | self.movi_size -= 12; | |
134 | self.src.read_skip(4)?; | |
135 | if self.movi_size == 0 { | |
136 | if !self.odml { | |
137 | return Err(EOF); | |
138 | } | |
139 | self.try_next_odml_chunk()?; | |
140 | } | |
141 | continue; | |
142 | } | |
143 | if (tag[0] == b'i' && tag[1] == b'x') || (&tag == b"idx1") { | |
144 | let idx_pos = self.src.tell() - 8; | |
145 | if !self.odml { | |
146 | return Err(EOF); | |
147 | } | |
148 | self.src.read_skip(size)?; | |
149 | if idx_pos > self.movi_pos { | |
150 | self.try_next_odml_chunk()?; | |
151 | } else { | |
152 | self.movi_pos = self.src.tell(); | |
153 | } | |
154 | continue; | |
155 | } | |
156 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { | |
157 | return Err(InvalidData); | |
158 | } | |
159 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); | |
160 | if tag[2] == b'p' && tag[3] == b'c' { | |
161 | self.parse_palette_change(stream_no as usize, size)?; | |
162 | self.movi_size -= size; | |
163 | if self.movi_size == 0 { | |
164 | if !self.odml { | |
165 | return Err(EOF); | |
166 | } | |
167 | self.try_next_odml_chunk()?; | |
168 | } | |
169 | continue; | |
170 | } | |
171 | let stream = strmgr.get_stream(stream_no as usize); | |
172 | if stream.is_none() { | |
173 | self.src.read_skip(size)?; | |
174 | self.movi_size -= size + 8; | |
175 | continue; | |
176 | } | |
177 | let stream = stream.unwrap(); | |
178 | if size == 0 { | |
179 | self.movi_size -= 8; | |
180 | if self.movi_size == 0 { | |
181 | if !self.odml { | |
182 | return Err(EOF); | |
183 | } | |
184 | self.try_next_odml_chunk()?; | |
185 | } | |
186 | continue; | |
187 | } | |
188 | let (tb_num, _) = stream.get_timebase(); | |
189 | let mut ts = stream.make_ts(Some(self.cur_frame[stream_no as usize]), None, None); | |
190 | if stream.get_media_type() == StreamType::Audio && tb_num == 1 && stream.get_info().get_name() == "pcm" && ts.pts != Some(0) { | |
191 | ts.pts = None; | |
192 | } | |
193 | let mut pkt = self.src.read_packet(stream, ts, is_keyframe, size)?; | |
194 | for pe in self.pal.iter_mut() { | |
195 | if pe.stream_no == (stream_no as usize) { | |
196 | pkt.add_side_data(NASideData::Palette(pe.changed, pe.pal.clone())); | |
197 | pe.changed = false; | |
198 | break; | |
199 | } | |
200 | } | |
201 | self.cur_frame[stream_no as usize] += 1; | |
202 | self.movi_size -= size + 8; | |
203 | ||
204 | return Ok(pkt); | |
205 | } | |
206 | } | |
207 | ||
208 | fn seek(&mut self, time: NATimePoint, seek_index: &SeekIndex) -> DemuxerResult<()> { | |
209 | let ret = seek_index.find_pos(time); | |
210 | if ret.is_none() { | |
211 | return Err(DemuxerError::SeekError); | |
212 | } | |
213 | let seek_info = ret.unwrap(); | |
214 | ||
215 | if self.odml && ((seek_info.pos < self.movi_pos) || (seek_info.pos > self.movi_pos + (self.movi_orig as u64))) { | |
216 | let mut found = false; | |
217 | for riff_seg in self.odml_riff.iter() { | |
218 | if riff_seg.contains(seek_info.pos) { | |
219 | found = true; | |
220 | self.movi_pos = riff_seg.movi_pos; | |
221 | self.movi_orig = riff_seg.movi_size; | |
222 | self.movi_size = riff_seg.movi_size; | |
223 | break; | |
224 | } | |
225 | } | |
226 | if !found { | |
227 | let riff_seg = self.odml_riff.last().unwrap(); | |
228 | self.src.seek(SeekFrom::Start(riff_seg.get_end()))?; | |
229 | loop { | |
230 | let ret = self.try_next_odml_chunk(); | |
231 | if ret.is_err() { | |
232 | return Err(DemuxerError::SeekError); | |
233 | } | |
234 | let riff_seg = self.odml_riff.last().unwrap(); | |
235 | if riff_seg.contains(seek_info.pos) { | |
236 | self.movi_pos = riff_seg.movi_pos; | |
237 | self.movi_orig = riff_seg.movi_size; | |
238 | self.movi_size = riff_seg.movi_size; | |
239 | break; | |
240 | } | |
241 | self.src.seek(SeekFrom::Start(riff_seg.get_end()))?; | |
242 | } | |
243 | } | |
244 | } | |
245 | if seek_info.pos < self.movi_pos { return Err(DemuxerError::SeekError); } | |
246 | let skip_size = (seek_info.pos - self.movi_pos) as usize; | |
247 | if skip_size > self.movi_orig { return Err(DemuxerError::SeekError); } | |
248 | self.movi_size = self.movi_orig - skip_size; | |
249 | ||
250 | self.cur_frame[seek_info.str_id as usize] = seek_info.pts; | |
251 | self.src.seek(SeekFrom::Start(seek_info.pos))?; | |
252 | ||
253 | Ok(()) | |
254 | } | |
255 | fn get_duration(&self) -> u64 { 0 } | |
256 | } | |
257 | ||
258 | impl<'a> NAOptionHandler for AVIDemuxer<'a> { | |
259 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
260 | fn set_options(&mut self, _options: &[NAOption]) { } | |
261 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
262 | } | |
263 | ||
264 | impl<'a> AVIDemuxer<'a> { | |
265 | fn new(io: &'a mut ByteReader<'a>) -> Self { | |
266 | AVIDemuxer { | |
267 | cur_frame: Vec::new(), | |
268 | num_streams: 0, | |
269 | src: io, | |
270 | size: 0, | |
271 | movi_size: 0, | |
272 | movi_pos: 0, | |
273 | movi_orig: 0, | |
274 | sstate: StreamState::new(), | |
275 | tb_num: 0, | |
276 | tb_den: 0, | |
277 | strm_duration: 0, | |
278 | key_offs: Vec::new(), | |
279 | pal: Vec::new(), | |
280 | odml: false, | |
281 | odml_idx: Vec::new(), | |
282 | odml_riff: Vec::with_capacity(1), | |
283 | iddx_pos: 0, | |
284 | odd_offset: false, | |
285 | } | |
286 | } | |
287 | ||
288 | fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { | |
289 | if csize < 8 { return Err(InvalidData); } | |
290 | if depth > 42 { return Err(InvalidData); } | |
291 | ||
292 | let tag = self.src.read_u32be()?; | |
293 | let size = self.src.read_u32le()? as usize; | |
294 | if size > csize { return Err(InvalidData); } | |
295 | if RIFFTag::Chunk(tag) == end_tag { | |
296 | return Ok((size, true)); | |
297 | } | |
298 | let is_list = is_list_tag(tag); | |
299 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; | |
300 | if RIFFTag::List(tag, ltag) == end_tag { | |
301 | return Ok((size, true)); | |
302 | } | |
303 | ||
304 | for chunk in CHUNKS.iter() { | |
305 | if RIFFTag::Chunk(tag) == chunk.tag { | |
306 | let psize = (chunk.parse)(self, strmgr, size)?; | |
307 | if psize != size { return Err(InvalidData); } | |
308 | if !self.odd_offset && (psize & 1) == 1 { self.src.read_skip(1)?; } | |
309 | return Ok((size + 8, false)); | |
310 | } | |
311 | if RIFFTag::List(tag, ltag) == chunk.tag { | |
312 | let mut rest_size = size - 4; | |
313 | let psize = (chunk.parse)(self, strmgr, rest_size)?; | |
314 | if psize > rest_size { return Err(InvalidData); } | |
315 | rest_size -= psize; | |
316 | while rest_size > 0 { | |
317 | let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; | |
318 | if psize > rest_size { return Err(InvalidData); } | |
319 | rest_size -= psize; | |
320 | if !self.odd_offset && ((psize & 1) == 1) && (rest_size > 0) { | |
321 | rest_size -= 1; | |
322 | } | |
323 | } | |
324 | ||
325 | return Ok((size + 8, false)); | |
326 | } | |
327 | } | |
328 | if !is_list { | |
329 | self.src.read_skip(size)?; | |
330 | } else { | |
331 | if size < 4 { return Err(InvalidData); } | |
332 | self.src.read_skip(size - 4)?; | |
333 | } | |
334 | if !self.odd_offset && (size & 1) == 1 { self.src.read_skip(1)?; } | |
335 | Ok((size + 8, false)) | |
336 | } | |
337 | ||
338 | fn read_header(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> { | |
339 | let riff_tag = self.src.read_u32be()?; | |
340 | let size = self.src.read_u32le()? as usize; | |
341 | self.odml_riff.push(RIFFSegment { pos: self.src.tell() - 8, size: size + 8, movi_pos: 0, movi_size: 0}); | |
342 | let avi_tag = self.src.read_u32be()?; | |
343 | let mut matches = false; | |
344 | for rt in RIFF_TAGS.iter() { | |
345 | if rt[0] == riff_tag && rt[1] == avi_tag { | |
346 | matches = true; | |
347 | break; | |
348 | } | |
349 | } | |
350 | if !matches { | |
351 | return Err(InvalidData); | |
352 | } | |
353 | self.size = size; | |
354 | let mut rest_size = size; | |
355 | loop { | |
356 | let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; | |
357 | if end { | |
358 | self.movi_size = csz - 4; | |
359 | self.movi_orig = self.movi_size; | |
360 | self.movi_pos = self.src.tell(); | |
361 | ||
362 | self.odml_riff[0].movi_pos = self.movi_pos; | |
363 | self.odml_riff[0].movi_size = self.movi_size; | |
364 | break; | |
365 | } | |
366 | rest_size -= csz; | |
367 | } | |
368 | if !seek_idx.skip_index { | |
369 | if !self.odml || self.odml_idx.is_empty() { | |
370 | self.src.read_skip(self.movi_size)?; | |
371 | let mut seen_idx1 = false; | |
372 | while rest_size > 0 { | |
373 | let ret = self.parse_chunk(strmgr, RIFFTag::Chunk(mktag!(b"idx1")), rest_size,0); | |
374 | if ret.is_err() { break; } | |
375 | let (csz, end) = ret.unwrap(); | |
376 | if end { | |
377 | let _res = parse_idx1(self.src, strmgr, seek_idx, csz, self.movi_pos, &mut self.key_offs); | |
378 | seen_idx1 = true; | |
379 | break; | |
380 | } | |
381 | rest_size -= csz; | |
382 | } | |
383 | if !seen_idx1 && self.iddx_pos > 0 { | |
384 | self.src.seek(SeekFrom::Start(self.iddx_pos - 4))?; | |
385 | let iddx_size = self.src.read_u32le()? as usize; | |
386 | if let Ok((_size, odd_offset)) = parse_iddx_data(self.src, strmgr, seek_idx, iddx_size, self.movi_pos, &mut self.key_offs) { | |
387 | self.odd_offset = odd_offset; | |
388 | } | |
389 | } | |
390 | } else { | |
391 | let mut start = 0; | |
392 | let mut last_strm_no = 255; | |
393 | for &offset in self.odml_idx.iter() { | |
394 | if self.src.seek(SeekFrom::Start(offset)).is_err() { | |
395 | break; | |
396 | } | |
397 | let ret = self.src.read_tag(); | |
398 | if ret.is_err() { break; } | |
399 | let tag = ret.unwrap(); | |
400 | let ret = self.src.read_u32le(); | |
401 | if ret.is_err() { break; } | |
402 | let size = ret.unwrap() as usize; | |
403 | if &tag[..2] != b"ix" || tag[2] < b'0' || tag[2] > b'9' || tag[3] < b'0' || tag[3] > b'9'{ | |
404 | break; | |
405 | } | |
406 | let stream_no = ((tag[2] - b'0') * 10 + (tag[3] - b'0')) as usize; | |
407 | ||
408 | if last_strm_no != stream_no { | |
409 | start = 0; | |
410 | last_strm_no = stream_no; | |
411 | } | |
412 | let ret = parse_odml_ix(self.src, strmgr, seek_idx, stream_no, size, start); | |
413 | if let Ok(new_start) = ret { | |
414 | start = new_start; | |
415 | } else { | |
416 | break; | |
417 | } | |
418 | } | |
419 | } | |
420 | } | |
421 | if self.movi_pos != 0 { | |
422 | self.src.seek(SeekFrom::Start(self.movi_pos))?; | |
423 | } else { | |
424 | return Err(InvalidData); | |
425 | } | |
426 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { | |
427 | return Err(InvalidData); | |
428 | } | |
429 | Ok(()) | |
430 | } | |
431 | ||
432 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { | |
433 | if size == 0 { return Ok(None); } | |
434 | let mut edvec: Vec<u8> = vec![0; size]; | |
435 | self.src.read_buf(&mut edvec)?; | |
436 | Ok(Some(edvec)) | |
437 | } | |
438 | ||
439 | fn parse_palette_change(&mut self, stream_no: usize, size: usize) -> DemuxerResult<()> { | |
440 | for pe in self.pal.iter_mut() { | |
441 | if pe.stream_no == stream_no { | |
442 | let mut newpal = *pe.pal; | |
443 | let mut data_left = size; | |
444 | while data_left > 0 { | |
445 | validate!(data_left >= 8); | |
446 | let start_clr = self.src.read_byte()? as usize; | |
447 | let len = self.src.read_byte()? as usize; | |
448 | let len = if len == 0 { 256 } else { len }; | |
449 | let _flags = self.src.read_u16le()?; | |
450 | validate!(start_clr + len <= 256); | |
451 | let change_size = len * 4 + 4; | |
452 | validate!(change_size <= data_left); | |
453 | for i in start_clr..(start_clr + len) { | |
454 | newpal[i * 4] = self.src.read_byte()?; | |
455 | newpal[i * 4 + 1] = self.src.read_byte()?; | |
456 | newpal[i * 4 + 2] = self.src.read_byte()?; | |
457 | newpal[i * 4 + 3] = 0; | |
458 | self.src.read_byte()?; // flags | |
459 | } | |
460 | data_left -= change_size; | |
461 | } | |
462 | pe.pal = Arc::new(newpal); | |
463 | pe.changed = true; | |
464 | return Ok(()); | |
465 | } | |
466 | } | |
467 | self.src.read_skip(size)?; | |
468 | Ok(()) | |
469 | } | |
470 | fn try_next_odml_chunk(&mut self) -> DemuxerResult<()> { | |
471 | let last_seg = self.odml_riff.last().unwrap(); | |
472 | if self.src.tell() < last_seg.get_end() { | |
473 | for riff_seg in self.odml_riff.iter() { | |
474 | if riff_seg.pos >= self.src.tell() { | |
475 | self.src.seek(SeekFrom::Start(riff_seg.movi_pos))?; | |
476 | self.movi_pos = riff_seg.movi_pos; | |
477 | self.movi_size = riff_seg.movi_size; | |
478 | return Ok(()); | |
479 | } | |
480 | } | |
481 | } | |
482 | self.src.seek(SeekFrom::Start(last_seg.get_end()))?; | |
483 | ||
484 | let riff_pos = self.src.tell(); | |
485 | let ret = self.src.read_tag(); | |
486 | if let Ok([b'R', b'I', b'F', b'F']) = ret { | |
487 | } else { | |
488 | return Err(DemuxerError::EOF); | |
489 | } | |
490 | let riff_size = self.src.read_u32le()? as usize; | |
491 | let tag = self.src.read_tag()?; | |
492 | validate!(&tag == b"AVIX"); | |
493 | let tag = self.src.read_tag()?; | |
494 | validate!(&tag == b"LIST"); | |
495 | let list_size = self.src.read_u32le()? as usize; | |
496 | validate!(list_size >= 4); | |
497 | let tag = self.src.read_tag()?; | |
498 | validate!(&tag == b"movi"); | |
499 | self.odml_riff.push(RIFFSegment{ pos: riff_pos, size: riff_size + 8, movi_pos: riff_pos + 24, movi_size: list_size - 4}); | |
500 | self.movi_pos = riff_pos + 24; | |
501 | self.movi_size = list_size - 4; | |
502 | self.movi_orig = self.movi_size; | |
503 | ||
504 | Ok(()) | |
505 | } | |
506 | } | |
507 | ||
508 | const RIFF_TAGS: &[[u32; 2]] = &[ | |
509 | [ mktag!(b"RIFF"), mktag!(b"AVI ") ], | |
510 | [ mktag!(b"RIFF"), mktag!(b"AVIX") ], | |
511 | [ mktag!(b"ON2 "), mktag!(b"ON2f") ], | |
512 | ]; | |
513 | ||
514 | const CHUNKS: &[RIFFParser] = &[ | |
515 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, | |
516 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, | |
517 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, | |
518 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"ON2h")), parse: parse_avih }, | |
519 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, | |
520 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, | |
521 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"indx")), parse: parse_indx }, | |
522 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, | |
523 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"iddx")), parse: parse_iddx }, | |
524 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"odml")), parse: parse_odml }, | |
525 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"rec ")), parse: parse_rec }, | |
526 | ]; | |
527 | ||
528 | fn is_list_tag(tag: u32) -> bool { | |
529 | for chunk in CHUNKS.iter() { | |
530 | if let RIFFTag::List(ltag, _) = chunk.tag { | |
531 | if tag == ltag { | |
532 | return true; | |
533 | } | |
534 | } | |
535 | } | |
536 | false | |
537 | } | |
538 | ||
539 | fn parse_hdrl(_dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, _size: usize) -> DemuxerResult<usize> { | |
540 | Ok(0) | |
541 | } | |
542 | ||
543 | fn parse_strl(_dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, _size: usize) -> DemuxerResult<usize> { | |
544 | Ok(0) | |
545 | } | |
546 | ||
547 | fn parse_odml(dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, _size: usize) -> DemuxerResult<usize> { | |
548 | dmx.odml = true; | |
549 | Ok(0) | |
550 | } | |
551 | ||
552 | fn parse_rec(_dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, _size: usize) -> DemuxerResult<usize> { | |
553 | Ok(0) | |
554 | } | |
555 | ||
556 | fn parse_iddx(dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
557 | dmx.iddx_pos = dmx.src.tell(); | |
558 | dmx.src.read_skip(size)?; | |
559 | Ok(size) | |
560 | } | |
561 | ||
562 | fn parse_strh(dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
563 | if size < 0x38 { return Err(InvalidData); } | |
564 | let tag = dmx.src.read_u32be()?; //stream type | |
565 | let _fcc = dmx.src.read_u32be()?; //handler(fourcc) | |
566 | dmx.src.read_u32le()?; //flags | |
567 | dmx.src.read_skip(2)?; //priority | |
568 | dmx.src.read_skip(2)?; //language | |
569 | dmx.src.read_skip(4)?; //initial frames | |
570 | dmx.tb_num = dmx.src.read_u32le()?; //scale | |
571 | dmx.tb_den = dmx.src.read_u32le()?; //rate | |
572 | dmx.src.read_skip(4)?; //start | |
573 | dmx.strm_duration = dmx.src.read_u32le()?; | |
574 | dmx.src.read_skip(4)?; //buf size | |
575 | dmx.src.read_skip(4)?; //quality | |
576 | dmx.src.read_skip(4)?; //sample size | |
577 | let _a = dmx.src.read_u16le()?; | |
578 | let _b = dmx.src.read_u16le()?; | |
579 | let _c = dmx.src.read_u16le()?; | |
580 | let _d = dmx.src.read_u16le()?; | |
581 | ||
582 | dmx.src.read_skip(size - 0x38)?; | |
583 | ||
584 | // padding streams should be ignored | |
585 | if tag == mktag!(b"pads") { | |
586 | return Ok(size); | |
587 | } | |
588 | ||
589 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { | |
590 | return Err(InvalidData); | |
591 | } | |
592 | if tag == mktag!(b"vids") { | |
593 | dmx.sstate.strm_type = Some(StreamType::Video); | |
594 | } else if tag == mktag!(b"auds") { | |
595 | dmx.sstate.strm_type = Some(StreamType::Audio); | |
596 | } else { | |
597 | dmx.sstate.strm_type = Some(StreamType::Data); | |
598 | } | |
599 | dmx.sstate.got_strf = false; | |
600 | ||
601 | Ok(size) | |
602 | } | |
603 | ||
604 | fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
605 | if dmx.sstate.strm_type.is_none() { return Err(InvalidData); } | |
606 | match dmx.sstate.strm_type.unwrap() { | |
607 | StreamType::Video => parse_strf_vids(dmx, strmgr, size), | |
608 | StreamType::Audio => parse_strf_auds(dmx, strmgr, size), | |
609 | _ => parse_strf_xxxx(dmx, strmgr, size), | |
610 | } | |
611 | } | |
612 | ||
613 | fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
614 | if size < 40 { return Err(InvalidData); } | |
615 | let bi_size = dmx.src.read_u32le()?; | |
616 | if (bi_size as usize) < 40 { return Err(InvalidData); } | |
617 | let width = dmx.src.read_u32le()?; | |
618 | let height = dmx.src.read_u32le()? as i32; | |
619 | let planes = dmx.src.read_u16le()?; | |
620 | let bitcount = dmx.src.read_u16le()?; | |
621 | let mut compression: [u8; 4] = [0; 4]; | |
622 | dmx.src.read_buf(&mut compression)?; | |
623 | let _img_size = dmx.src.read_u32le()?; | |
624 | let _xdpi = dmx.src.read_u32le()?; | |
625 | let _ydpi = dmx.src.read_u32le()?; | |
626 | let colors = dmx.src.read_u32le()?; | |
627 | validate!(colors <= 256); | |
628 | let _imp_colors = dmx.src.read_u32le()?; | |
629 | ||
630 | let flip = height < 0; | |
631 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; | |
632 | let mut vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, format); | |
633 | vhdr.bits = (planes as u8) * (bitcount as u8); | |
634 | let cname = if find_raw_rgb_fmt(&compression, planes, bitcount, flip, &mut vhdr) { | |
635 | "rawvideo-ms" | |
636 | } else if find_raw_yuv_fmt(&compression, &mut vhdr) { | |
637 | "rawvideo" | |
638 | } else { | |
639 | match register::find_codec_from_avi_fourcc(&compression) { | |
640 | None => "unknown", | |
641 | Some(name) => name, | |
642 | } | |
643 | }; | |
644 | let vci = NACodecTypeInfo::Video(vhdr); | |
645 | let edata = dmx.read_extradata(size - 40)?; | |
646 | if colors > 0 { | |
647 | if let Some(ref buf) = edata { | |
648 | let mut pal = [0u8; 1024]; | |
649 | for (dpal, spal) in pal.chunks_mut(4).take(colors as usize).zip(buf.chunks(4)) { | |
650 | dpal[0] = spal[2]; | |
651 | dpal[1] = spal[1]; | |
652 | dpal[2] = spal[0]; | |
653 | dpal[3] = 0; | |
654 | } | |
655 | let pal = PalInfo { pal: Arc::new(pal), changed: true, stream_no: strmgr.get_num_streams() }; | |
656 | dmx.pal.push(pal); | |
657 | } | |
658 | } | |
659 | let vinfo = NACodecInfo::new(cname, vci, edata); | |
660 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, u32::from(dmx.sstate.strm_no), vinfo, dmx.tb_num, dmx.tb_den, u64::from(dmx.strm_duration))); | |
661 | if res.is_none() { return Err(MemoryError); } | |
662 | dmx.sstate.reset(); | |
663 | Ok(size) | |
664 | } | |
665 | ||
666 | fn find_raw_rgb_fmt(compr: &[u8; 4], planes: u16, bitcount: u16, flip: bool, vhdr: &mut NAVideoInfo) -> bool { | |
667 | match compr { | |
668 | &[0, 0, 0, 0] | b"DIB " => { | |
669 | if planes != 1 { | |
670 | return false; | |
671 | } | |
672 | let fmt_name = match bitcount { | |
673 | 8 => "pal8", | |
674 | 16 => "bgr555", | |
675 | 24 => "bgr24", | |
676 | 32 => "bgra24", | |
677 | _ => return false, | |
678 | }; | |
679 | if let Ok(fmt) = NAPixelFormaton::from_str(fmt_name) { | |
680 | vhdr.format = fmt; | |
681 | vhdr.flipped = !flip; | |
682 | true | |
683 | } else { | |
684 | false | |
685 | } | |
686 | }, | |
687 | _ => false, | |
688 | } | |
689 | } | |
690 | ||
691 | fn find_raw_yuv_fmt(compr: &[u8; 4], vhdr: &mut NAVideoInfo) -> bool { | |
692 | let (fmt_name, swapuv) = match compr { | |
693 | b"UYVY" | b"UYNY" | b"UYNV" | b"2vuy" => ("uyvy", false), | |
694 | b"I420" | b"IYUV" => ("yuv420p", false), | |
695 | b"YV12" => ("yuv420p", true), | |
696 | b"YVU9" => ("yuv410p", true), | |
697 | _ => return false, | |
698 | }; | |
699 | if let Ok(fmt) = NAPixelFormaton::from_str(fmt_name) { | |
700 | vhdr.format = fmt; | |
701 | if swapuv { | |
702 | vhdr.format.comp_info.swap(1, 2); | |
703 | } | |
704 | true | |
705 | } else { | |
706 | false | |
707 | } | |
708 | } | |
709 | ||
710 | fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
711 | if size < 16 { return Err(InvalidData); } | |
712 | let w_format_tag = dmx.src.read_u16le()?; | |
713 | let channels = dmx.src.read_u16le()?; | |
714 | let samplespersec = dmx.src.read_u32le()?; | |
715 | let _avgbytespersec = dmx.src.read_u32le()?; | |
716 | let block_align = dmx.src.read_u16le()?; | |
717 | let bits_per_sample = dmx.src.read_u16le()?; | |
718 | ||
719 | let signed = bits_per_sample > 8; | |
720 | let soniton = NASoniton::new(bits_per_sample as u8, if signed { SONITON_FLAG_SIGNED } else { 0 }); | |
721 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); | |
722 | let edata = if size > 16 { | |
723 | let edata_size = dmx.src.read_u16le()? as usize; | |
724 | validate!(edata_size + 18 <= size); | |
725 | dmx.read_extradata(size - 18)? | |
726 | } else { | |
727 | None | |
728 | }; | |
729 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { | |
730 | None => "unknown", | |
731 | Some(name) => name, | |
732 | }; | |
733 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); | |
734 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, u32::from(dmx.sstate.strm_no), ainfo, dmx.tb_num, dmx.tb_den, u64::from(dmx.strm_duration))); | |
735 | if res.is_none() { return Err(MemoryError); } | |
736 | dmx.sstate.reset(); | |
737 | Ok(size) | |
738 | } | |
739 | ||
740 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
741 | let edata = dmx.read_extradata(size)?; | |
742 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); | |
743 | let res = strmgr.add_stream(NAStream::new(StreamType::Data, u32::from(dmx.sstate.strm_no), info, dmx.tb_num, dmx.tb_den, u64::from(dmx.strm_duration))); | |
744 | if res.is_none() { return Err(MemoryError); } | |
745 | dmx.sstate.reset(); | |
746 | Ok(size) | |
747 | } | |
748 | ||
749 | fn parse_avih(dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
750 | if size < 0x38 { return Err(InvalidData); } | |
751 | let _timebase = dmx.src.read_u32le()?; //microsec per frame | |
752 | dmx.src.read_skip(4)?; //max frame size | |
753 | dmx.src.read_skip(4)?; //padding | |
754 | dmx.src.read_u32le()?; //flags | |
755 | let _frames = dmx.src.read_u32le()?; //frames | |
756 | dmx.src.read_skip(4)?; //initial frames | |
757 | let streams = dmx.src.read_u32le()?; //streams | |
758 | if streams > 100 { return Err(InvalidData); } | |
759 | dmx.num_streams = streams as u8; | |
760 | ||
761 | dmx.src.read_skip(4)?; //buf size | |
762 | let _width = dmx.src.read_u32le()?; //width | |
763 | let _height = dmx.src.read_u32le()? as i32; //height | |
764 | dmx.src.read_skip(16)?; //reserved | |
765 | ||
766 | dmx.cur_frame.resize(streams as usize, 0); | |
767 | dmx.src.read_skip(size - 0x38)?; | |
768 | Ok(size) | |
769 | } | |
770 | ||
771 | fn parse_indx(dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
772 | dmx.odml = true; | |
773 | validate!(size >= 24); | |
774 | let entry_size = dmx.src.read_u16le()? as usize; | |
775 | if entry_size != 4 { | |
776 | dmx.src.read_skip(size - 2)?; | |
777 | return Ok(size); | |
778 | } | |
779 | let sub_type = dmx.src.read_byte()?; | |
780 | let idx_type = dmx.src.read_byte()?; | |
781 | validate!(sub_type == 0 && idx_type == 0); | |
782 | let entries = dmx.src.read_u32le()? as usize; | |
783 | validate!(size >= 24 + entries * 4 * entry_size); | |
784 | dmx.src.read_tag()?; //chunk id | |
785 | dmx.src.read_skip(12)?; // reserved | |
786 | for _ in 0..entries { | |
787 | let offset = dmx.src.read_u64le()?; | |
788 | let _idx_len = dmx.src.read_u32le()?; | |
789 | let _nframes = dmx.src.read_u32le()?; | |
790 | dmx.odml_idx.push(offset); | |
791 | } | |
792 | dmx.src.read_skip(size - 24 - entries * 4 * entry_size)?; | |
793 | Ok(size) | |
794 | } | |
795 | ||
796 | fn parse_junk(dmx: &mut AVIDemuxer, _strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
797 | dmx.src.read_skip(size)?; | |
798 | Ok(size) | |
799 | } | |
800 | ||
801 | fn parse_idx1(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex, size: usize, movi_pos: u64, key_offs: &mut Vec<u64>) -> DemuxerResult<usize> { | |
802 | validate!((size & 15) == 0); | |
803 | let mut tag = [0u8; 4]; | |
804 | let num_entries = size >> 4; | |
805 | let mut counter = [0u64; 100]; | |
806 | let mut add_offset = 0; | |
807 | let mut set_offset = false; | |
808 | for _ in 0..num_entries { | |
809 | src.read_buf(&mut tag)?; | |
810 | let flags = src.read_u32le()?; | |
811 | let mut offset = src.read_u32le()? as u64; | |
812 | let _length = src.read_u32le()?; | |
813 | ||
814 | if !set_offset && offset < movi_pos { | |
815 | add_offset = movi_pos - offset; | |
816 | } | |
817 | set_offset = true; | |
818 | ||
819 | offset += add_offset; | |
820 | ||
821 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { | |
822 | continue; | |
823 | } | |
824 | let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize; | |
825 | ||
826 | if (flags & 0x10) != 0 { | |
827 | if let Some(stream) = strmgr.get_stream(stream_no) { | |
828 | if stream.get_media_type() == StreamType::Video { | |
829 | let (tb_num, tb_den) = stream.get_timebase(); | |
830 | let pts = counter[stream_no]; | |
831 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); | |
832 | validate!(offset >= movi_pos); | |
833 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: offset }); | |
834 | } | |
835 | key_offs.push(offset); | |
836 | } | |
837 | } | |
838 | counter[stream_no] += 1; | |
839 | } | |
840 | key_offs.sort_unstable(); | |
841 | Ok(size) | |
842 | } | |
843 | ||
844 | fn parse_iddx_data(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex, size: usize, movi_pos: u64, key_offs: &mut Vec<u64>) -> DemuxerResult<(usize, bool)> { | |
845 | validate!((size & 15) == 0); | |
846 | let mut tag = [0u8; 4]; | |
847 | let num_entries = size >> 4; | |
848 | let mut counter = [0u64; 100]; | |
849 | let mut add_offset = 0; | |
850 | let mut set_offset = false; | |
851 | let mut odd_offset = false; | |
852 | for _ in 0..num_entries { | |
853 | src.read_buf(&mut tag)?; | |
854 | let flags = src.read_u32le()?; | |
855 | let mut offset = src.read_u32le()? as u64; | |
856 | let _length = src.read_u32le()?; | |
857 | ||
858 | if (offset & 1) != 0 { | |
859 | odd_offset = true; | |
860 | } | |
861 | ||
862 | if !set_offset && offset < movi_pos { | |
863 | add_offset = movi_pos - offset; | |
864 | } | |
865 | set_offset = true; | |
866 | ||
867 | offset += add_offset; | |
868 | ||
869 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { | |
870 | continue; | |
871 | } | |
872 | let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize; | |
873 | ||
874 | if (flags & 0x10) != 0 { | |
875 | if let Some(stream) = strmgr.get_stream(stream_no) { | |
876 | if stream.get_media_type() == StreamType::Video { | |
877 | let (tb_num, tb_den) = stream.get_timebase(); | |
878 | let pts = counter[stream_no]; | |
879 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); | |
880 | validate!(offset >= movi_pos); | |
881 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: offset }); | |
882 | } | |
883 | key_offs.push(offset); | |
884 | } | |
885 | } | |
886 | counter[stream_no] += 1; | |
887 | } | |
888 | key_offs.sort_unstable(); | |
889 | Ok((size, odd_offset)) | |
890 | } | |
891 | ||
892 | fn parse_odml_ix(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex, stream_no: usize, size: usize, start: u64) -> DemuxerResult<u64> { | |
893 | validate!(size >= 24); | |
894 | let entry_size = src.read_u16le()? as usize; | |
895 | if entry_size != 2 { | |
896 | return Err(DemuxerError::NotImplemented); | |
897 | } | |
898 | let sub_type = src.read_byte()?; | |
899 | let idx_type = src.read_byte()?; | |
900 | validate!(sub_type == 0 && idx_type == 1); | |
901 | let entries = src.read_u32le()? as usize; | |
902 | validate!(size >= 24 + entries * 4 * entry_size); | |
903 | src.read_tag()?; //chunk id | |
904 | let base_offset = src.read_u64le()?; | |
905 | src.read_u32le()?; //reserved | |
906 | if let Some(stream) = strmgr.get_stream(stream_no) { | |
907 | if stream.get_media_type() == StreamType::Video { | |
908 | let (tb_num, tb_den) = stream.get_timebase(); | |
909 | ||
910 | for i in 0..entries { | |
911 | let offset = src.read_u32le()?; | |
912 | validate!(offset >= 8); | |
913 | let _size = src.read_u32le()?; | |
914 | ||
915 | let pts = start + (i as u64); | |
916 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); | |
917 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: base_offset + u64::from(offset - 8) }); | |
918 | } | |
919 | ||
920 | Ok(start + (entries as u64)) | |
921 | } else { | |
922 | Ok(0) | |
923 | } | |
924 | } else { | |
925 | Ok(0) | |
926 | } | |
927 | } | |
928 | ||
929 | pub struct AVIDemuxerCreator { } | |
930 | ||
931 | impl DemuxerCreator for AVIDemuxerCreator { | |
932 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { | |
933 | Box::new(AVIDemuxer::new(br)) | |
934 | } | |
935 | fn get_name(&self) -> &'static str { "avi" } | |
936 | } | |
937 | ||
938 | #[cfg(test)] | |
939 | mod test { | |
940 | use super::*; | |
941 | use std::fs::File; | |
942 | ||
943 | #[test] | |
944 | fn test_avi_demux() { | |
945 | //test sample: https://samples.mplayerhq.hu/V-codecs/RT21/320x240/laser05.avi | |
946 | let mut file = File::open("assets/Indeo/laser05.avi").unwrap(); | |
947 | let mut fr = FileReader::new_read(&mut file); | |
948 | let mut br = ByteReader::new(&mut fr); | |
949 | let mut dmx = AVIDemuxer::new(&mut br); | |
950 | let mut sm = StreamManager::new(); | |
951 | let mut si = SeekIndex::new(); | |
952 | dmx.open(&mut sm, &mut si).unwrap(); | |
953 | ||
954 | loop { | |
955 | let pktres = dmx.get_frame(&mut sm); | |
956 | if let Err(e) = pktres { | |
957 | if e == DemuxerError::EOF { break; } | |
958 | panic!("error"); | |
959 | } | |
960 | let pkt = pktres.unwrap(); | |
961 | println!("Got {}", pkt); | |
962 | } | |
963 | } | |
964 | } |