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