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Commit | Line | Data |
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1 | use nihav_core::demuxers::*; | |
2 | use nihav_core::register; | |
3 | use nihav_core::demuxers::DemuxerError::*; | |
4 | ||
5 | macro_rules! mktag { | |
6 | ($a:expr, $b:expr, $c:expr, $d:expr) => ({ | |
7 | (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32) | |
8 | }); | |
9 | ($arr:expr) => ({ | |
10 | (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32) | |
11 | }); | |
12 | } | |
13 | ||
14 | struct StreamState { | |
15 | strm_no: u8, | |
16 | got_strf: bool, | |
17 | strm_type: Option<StreamType>, | |
18 | } | |
19 | ||
20 | impl StreamState { | |
21 | fn new() -> Self { | |
22 | StreamState { strm_no: 0, got_strf: true, strm_type: None } | |
23 | } | |
24 | fn reset(&mut self) { | |
25 | self.strm_type = None; | |
26 | self.got_strf = true; | |
27 | self.strm_no += 1; | |
28 | } | |
29 | fn valid_state(&self) -> bool { | |
30 | match self.strm_type { | |
31 | None => self.got_strf, | |
32 | _ => false, | |
33 | } | |
34 | } | |
35 | } | |
36 | ||
37 | #[allow(dead_code)] | |
38 | struct AVIDemuxer<'a> { | |
39 | src: &'a mut ByteReader<'a>, | |
40 | cur_frame: Vec<u64>, | |
41 | num_streams: u8, | |
42 | size: usize, | |
43 | movi_size: usize, | |
44 | movi_pos: u64, | |
45 | movi_orig: usize, | |
46 | sstate: StreamState, | |
47 | tb_num: u32, | |
48 | tb_den: u32, | |
49 | } | |
50 | ||
51 | #[derive(Debug,Clone,Copy,PartialEq)] | |
52 | enum RIFFTag { | |
53 | Chunk(u32), | |
54 | List(u32,u32), | |
55 | } | |
56 | ||
57 | struct RIFFParser { | |
58 | tag: RIFFTag, | |
59 | parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>, | |
60 | } | |
61 | ||
62 | impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { | |
63 | fn open(&mut self, strmgr: &mut StreamManager, seek_index: &mut SeekIndex) -> DemuxerResult<()> { | |
64 | self.read_header(strmgr, seek_index)?; | |
65 | Ok(()) | |
66 | } | |
67 | ||
68 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { | |
69 | if self.movi_size == 0 { return Err(EOF); } | |
70 | let mut tag: [u8; 4] = [0; 4]; | |
71 | loop { | |
72 | if (self.src.tell() & 1) == 1 { | |
73 | self.src.read_skip(1)?; | |
74 | self.movi_size -= 1; | |
75 | if self.movi_size == 0 { return Err(EOF); } | |
76 | } | |
77 | self.src.read_buf(&mut tag)?; | |
78 | let size = self.src.read_u32le()? as usize; | |
79 | if mktag!(tag) == mktag!(b"JUNK") { | |
80 | self.movi_size -= size + 8; | |
81 | self.src.read_skip(size)?; | |
82 | if self.movi_size == 0 { return Err(EOF); } | |
83 | continue; | |
84 | } | |
85 | if mktag!(tag) == mktag!(b"LIST") { | |
86 | self.movi_size -= 12; | |
87 | self.src.read_skip(4)?; | |
88 | if self.movi_size == 0 { return Err(EOF); } | |
89 | continue; | |
90 | } | |
91 | if tag[0] == b'i' && tag[1] == b'x' { | |
92 | return Err(EOF); | |
93 | } | |
94 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { | |
95 | return Err(InvalidData); | |
96 | } | |
97 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); | |
98 | let str = strmgr.get_stream(stream_no as usize); | |
99 | if str.is_none() { return Err(InvalidData); } | |
100 | let stream = str.unwrap(); | |
101 | if size == 0 { | |
102 | self.movi_size -= 8; | |
103 | if self.movi_size == 0 { return Err(EOF); } | |
104 | continue; | |
105 | } | |
106 | let (tb_num, tb_den) = stream.get_timebase(); | |
107 | let ts = NATimeInfo::new(Some(self.cur_frame[stream_no as usize]), None, None, tb_num, tb_den); | |
108 | let pkt = self.src.read_packet(stream, ts, false, size)?; | |
109 | self.cur_frame[stream_no as usize] += 1; | |
110 | self.movi_size -= size + 8; | |
111 | ||
112 | return Ok(pkt); | |
113 | } | |
114 | } | |
115 | ||
116 | fn seek(&mut self, time: u64, seek_index: &SeekIndex) -> DemuxerResult<()> { | |
117 | let ret = seek_index.find_pos(time); | |
118 | if ret.is_none() { | |
119 | return Err(DemuxerError::SeekError); | |
120 | } | |
121 | let seek_info = ret.unwrap(); | |
122 | ||
123 | if seek_info.pos < self.movi_pos { return Err(DemuxerError::SeekError); } | |
124 | let skip_size = (seek_info.pos - self.movi_pos) as usize; | |
125 | if skip_size > self.movi_size { return Err(DemuxerError::SeekError); } | |
126 | self.movi_size = self.movi_orig - skip_size; | |
127 | ||
128 | self.cur_frame[seek_info.str_id as usize] = seek_info.pts; | |
129 | self.src.seek(SeekFrom::Start(seek_info.pos))?; | |
130 | ||
131 | Ok(()) | |
132 | } | |
133 | } | |
134 | ||
135 | impl<'a> AVIDemuxer<'a> { | |
136 | fn new(io: &'a mut ByteReader<'a>) -> Self { | |
137 | AVIDemuxer { | |
138 | cur_frame: Vec::new(), | |
139 | num_streams: 0, | |
140 | src: io, | |
141 | size: 0, | |
142 | movi_size: 0, | |
143 | movi_pos: 0, | |
144 | movi_orig: 0, | |
145 | sstate: StreamState::new(), | |
146 | tb_num: 0, | |
147 | tb_den: 0, | |
148 | } | |
149 | } | |
150 | ||
151 | fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { | |
152 | if csize < 8 { return Err(InvalidData); } | |
153 | if depth > 42 { return Err(InvalidData); } | |
154 | ||
155 | let tag = self.src.read_u32be()?; | |
156 | let size = self.src.read_u32le()? as usize; | |
157 | if size > csize { return Err(InvalidData); } | |
158 | if RIFFTag::Chunk(tag) == end_tag { | |
159 | return Ok((size, true)); | |
160 | } | |
161 | let is_list = is_list_tag(tag); | |
162 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; | |
163 | if RIFFTag::List(tag, ltag) == end_tag { | |
164 | return Ok((size, true)); | |
165 | } | |
166 | ||
167 | for chunk in CHUNKS.iter() { | |
168 | if RIFFTag::Chunk(tag) == chunk.tag { | |
169 | let psize = (chunk.parse)(self, strmgr, size)?; | |
170 | if psize != size { return Err(InvalidData); } | |
171 | if (psize & 1) == 1 { self.src.read_skip(1)?; } | |
172 | return Ok((size + 8, false)); | |
173 | } | |
174 | if RIFFTag::List(tag, ltag) == chunk.tag { | |
175 | let mut rest_size = size - 4; | |
176 | let psize = (chunk.parse)(self, strmgr, rest_size)?; | |
177 | if psize > rest_size { return Err(InvalidData); } | |
178 | rest_size -= psize; | |
179 | while rest_size > 0 { | |
180 | let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; | |
181 | if psize > rest_size { return Err(InvalidData); } | |
182 | rest_size -= psize; | |
183 | if ((psize & 1) == 1) && (rest_size > 0) { | |
184 | rest_size -= 1; | |
185 | } | |
186 | } | |
187 | ||
188 | return Ok((size + 8, false)); | |
189 | } | |
190 | } | |
191 | if !is_list { | |
192 | self.src.read_skip(size)?; | |
193 | } else { | |
194 | if size < 4 { return Err(InvalidData); } | |
195 | self.src.read_skip(size - 4)?; | |
196 | } | |
197 | if (size & 1) == 1 { self.src.read_skip(1)?; } | |
198 | Ok((size + 8, false)) | |
199 | } | |
200 | ||
201 | fn read_header(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> { | |
202 | let riff_tag = self.src.read_u32be()?; | |
203 | let size = self.src.read_u32le()? as usize; | |
204 | let avi_tag = self.src.read_u32be()?; | |
205 | let mut matches = false; | |
206 | for rt in RIFF_TAGS.iter() { | |
207 | if rt[0] == riff_tag && rt[1] == avi_tag { | |
208 | matches = true; | |
209 | break; | |
210 | } | |
211 | } | |
212 | if !matches { | |
213 | return Err(InvalidData); | |
214 | } | |
215 | self.size = size; | |
216 | let mut rest_size = size; | |
217 | loop { | |
218 | let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; | |
219 | if end { | |
220 | self.movi_size = csz - 4; | |
221 | self.movi_orig = self.movi_size; | |
222 | self.movi_pos = self.src.tell(); | |
223 | break; | |
224 | } | |
225 | rest_size -= csz; | |
226 | } | |
227 | if !seek_idx.skip_index { | |
228 | self.src.read_skip(self.movi_size)?; | |
229 | while rest_size > 0 { | |
230 | let ret = self.parse_chunk(strmgr, RIFFTag::Chunk(mktag!(b"idx1")), rest_size,0); | |
231 | if ret.is_err() { break; } | |
232 | let (csz, end) = ret.unwrap(); | |
233 | if end { | |
234 | let _res = parse_idx1(&mut self.src, strmgr, seek_idx, csz, self.movi_pos); | |
235 | break; | |
236 | } | |
237 | rest_size -= csz; | |
238 | } | |
239 | } | |
240 | if self.movi_pos != 0 { | |
241 | self.src.seek(SeekFrom::Start(self.movi_pos))?; | |
242 | } else { | |
243 | return Err(InvalidData); | |
244 | } | |
245 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { | |
246 | return Err(InvalidData); | |
247 | } | |
248 | Ok(()) | |
249 | } | |
250 | ||
251 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { | |
252 | if size == 0 { return Ok(None); } | |
253 | let mut edvec: Vec<u8> = vec![0; size]; | |
254 | self.src.read_buf(&mut edvec)?; | |
255 | Ok(Some(edvec)) | |
256 | } | |
257 | } | |
258 | ||
259 | const RIFF_TAGS: &[[u32; 2]] = &[ | |
260 | [ mktag!(b"RIFF"), mktag!(b"AVI ") ], | |
261 | [ mktag!(b"RIFF"), mktag!(b"AVIX") ], | |
262 | [ mktag!(b"ON2 "), mktag!(b"ON2f") ], | |
263 | ]; | |
264 | ||
265 | const CHUNKS: [RIFFParser; 7] = [ | |
266 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, | |
267 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, | |
268 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, | |
269 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"ON2h")), parse: parse_avih }, | |
270 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, | |
271 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, | |
272 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, | |
273 | ]; | |
274 | ||
275 | fn is_list_tag(tag: u32) -> bool { | |
276 | for chunk in CHUNKS.iter() { | |
277 | if let RIFFTag::List(ltag, _) = chunk.tag { | |
278 | if tag == ltag { | |
279 | return true; | |
280 | } | |
281 | } | |
282 | } | |
283 | false | |
284 | } | |
285 | ||
286 | #[allow(unused_variables)] | |
287 | fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
288 | Ok(0) | |
289 | } | |
290 | ||
291 | #[allow(unused_variables)] | |
292 | fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
293 | Ok(0) | |
294 | } | |
295 | ||
296 | #[allow(unused_variables)] | |
297 | fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
298 | if size < 0x38 { return Err(InvalidData); } | |
299 | let tag = dmx.src.read_u32be()?; //stream type | |
300 | let fcc = dmx.src.read_u32be()?; //handler(fourcc) | |
301 | dmx.src.read_u32le()?; //flags | |
302 | dmx.src.read_skip(2)?; //priority | |
303 | dmx.src.read_skip(2)?; //language | |
304 | dmx.src.read_skip(4)?; //initial frames | |
305 | dmx.tb_num = dmx.src.read_u32le()?; //scale | |
306 | dmx.tb_den = dmx.src.read_u32le()?; //rate | |
307 | dmx.src.read_skip(4)?; //start | |
308 | dmx.src.read_skip(4)?; //length | |
309 | dmx.src.read_skip(4)?; //buf size | |
310 | dmx.src.read_skip(4)?; //quality | |
311 | dmx.src.read_skip(4)?; //sample size | |
312 | let a = dmx.src.read_u16le()?; | |
313 | let b = dmx.src.read_u16le()?; | |
314 | let c = dmx.src.read_u16le()?; | |
315 | let d = dmx.src.read_u16le()?; | |
316 | ||
317 | dmx.src.read_skip(size - 0x38)?; | |
318 | ||
319 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { | |
320 | return Err(InvalidData); | |
321 | } | |
322 | if tag == mktag!(b"vids") { | |
323 | dmx.sstate.strm_type = Some(StreamType::Video); | |
324 | } else if tag == mktag!(b"auds") { | |
325 | dmx.sstate.strm_type = Some(StreamType::Audio); | |
326 | } else { | |
327 | dmx.sstate.strm_type = Some(StreamType::Data); | |
328 | } | |
329 | dmx.sstate.got_strf = false; | |
330 | ||
331 | Ok(size) | |
332 | } | |
333 | ||
334 | fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
335 | if dmx.sstate.strm_type.is_none() { return Err(InvalidData); } | |
336 | match dmx.sstate.strm_type.unwrap() { | |
337 | StreamType::Video => parse_strf_vids(dmx, strmgr, size), | |
338 | StreamType::Audio => parse_strf_auds(dmx, strmgr, size), | |
339 | _ => parse_strf_xxxx(dmx, strmgr, size), | |
340 | } | |
341 | } | |
342 | ||
343 | #[allow(unused_variables)] | |
344 | fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
345 | if size < 40 { return Err(InvalidData); } | |
346 | let bi_size = dmx.src.read_u32le()?; | |
347 | if (bi_size as usize) > size { return Err(InvalidData); } | |
348 | let width = dmx.src.read_u32le()?; | |
349 | let height = dmx.src.read_u32le()? as i32; | |
350 | let planes = dmx.src.read_u16le()?; | |
351 | let bitcount = dmx.src.read_u16le()?; | |
352 | let mut compression: [u8; 4] = [0; 4]; | |
353 | dmx.src.read_buf(&mut compression)?; | |
354 | let img_size = dmx.src.read_u32le()?; | |
355 | let xdpi = dmx.src.read_u32le()?; | |
356 | let ydpi = dmx.src.read_u32le()?; | |
357 | let colors = dmx.src.read_u32le()?; | |
358 | let imp_colors = dmx.src.read_u32le()?; | |
359 | ||
360 | let flip = height < 0; | |
361 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; | |
362 | let vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, PAL8_FORMAT); | |
363 | let vci = NACodecTypeInfo::Video(vhdr); | |
364 | let edata = dmx.read_extradata(size - 40)?; | |
365 | let cname = match register::find_codec_from_avi_fourcc(&compression) { | |
366 | None => "unknown", | |
367 | Some(name) => name, | |
368 | }; | |
369 | let vinfo = NACodecInfo::new(cname, vci, edata); | |
370 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, u32::from(dmx.sstate.strm_no), vinfo, dmx.tb_num, dmx.tb_den)); | |
371 | if res.is_none() { return Err(MemoryError); } | |
372 | dmx.sstate.reset(); | |
373 | Ok(size) | |
374 | } | |
375 | ||
376 | #[allow(unused_variables)] | |
377 | fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
378 | if size < 16 { return Err(InvalidData); } | |
379 | let w_format_tag = dmx.src.read_u16le()?; | |
380 | let channels = dmx.src.read_u16le()?; | |
381 | let samplespersec = dmx.src.read_u32le()?; | |
382 | let avgbytespersec = dmx.src.read_u32le()?; | |
383 | let block_align = dmx.src.read_u16le()?; | |
384 | let bits_per_sample = dmx.src.read_u16le()? * 8; | |
385 | ||
386 | let soniton = NASoniton::new(bits_per_sample as u8, SONITON_FLAG_SIGNED); | |
387 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); | |
388 | let edata = dmx.read_extradata(size - 16)?; | |
389 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { | |
390 | None => "unknown", | |
391 | Some(name) => name, | |
392 | }; | |
393 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); | |
394 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, u32::from(dmx.sstate.strm_no), ainfo, dmx.tb_num, dmx.tb_den)); | |
395 | if res.is_none() { return Err(MemoryError); } | |
396 | dmx.sstate.reset(); | |
397 | Ok(size) | |
398 | } | |
399 | ||
400 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
401 | let edata = dmx.read_extradata(size)?; | |
402 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); | |
403 | let res = strmgr.add_stream(NAStream::new(StreamType::Data, u32::from(dmx.sstate.strm_no), info, dmx.tb_num, dmx.tb_den)); | |
404 | if res.is_none() { return Err(MemoryError); } | |
405 | dmx.sstate.reset(); | |
406 | Ok(size) | |
407 | } | |
408 | ||
409 | #[allow(unused_variables)] | |
410 | fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
411 | if size < 0x38 { return Err(InvalidData); } | |
412 | let timebase = dmx.src.read_u32le()?; //microsec per frame | |
413 | dmx.src.read_skip(4)?; //max frame size | |
414 | dmx.src.read_skip(4)?; //padding | |
415 | dmx.src.read_u32le()?; //flags | |
416 | let frames = dmx.src.read_u32le()?; //frames | |
417 | dmx.src.read_skip(4)?; //initial frames | |
418 | let streams = dmx.src.read_u32le()?; //streams | |
419 | if streams > 100 { return Err(InvalidData); } | |
420 | dmx.num_streams = streams as u8; | |
421 | ||
422 | dmx.src.read_skip(4)?; //buf size | |
423 | let width = dmx.src.read_u32le()?; //width | |
424 | let height = dmx.src.read_u32le()? as i32; //height | |
425 | dmx.src.read_skip(16)?; //reserved | |
426 | ||
427 | dmx.cur_frame.resize(streams as usize, 0); | |
428 | dmx.src.read_skip(size - 0x38)?; | |
429 | Ok(size) | |
430 | } | |
431 | ||
432 | #[allow(unused_variables)] | |
433 | fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
434 | dmx.src.read_skip(size)?; | |
435 | Ok(size) | |
436 | } | |
437 | ||
438 | fn parse_idx1(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex, size: usize, movi_pos: u64) -> DemuxerResult<usize> { | |
439 | validate!((size & 15) == 0); | |
440 | let mut tag = [0u8; 4]; | |
441 | let num_entries = size >> 4; | |
442 | let mut counter = [0u64; 100]; | |
443 | for _ in 0..num_entries { | |
444 | src.read_buf(&mut tag)?; | |
445 | let flags = src.read_u32le()?; | |
446 | let offset = src.read_u32le()? as u64; | |
447 | let _length = src.read_u32le()?; | |
448 | ||
449 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { | |
450 | return Err(InvalidData); | |
451 | } | |
452 | let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize; | |
453 | ||
454 | if (flags & 0x10) != 0 { | |
455 | if let Some(str) = strmgr.get_stream(stream_no) { | |
456 | if str.get_media_type() == StreamType::Video { | |
457 | let (tb_num, tb_den) = str.get_timebase(); | |
458 | let pts = counter[stream_no]; | |
459 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); | |
460 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: offset + movi_pos - 4 }); | |
461 | } | |
462 | } | |
463 | } | |
464 | counter[stream_no] += 1; | |
465 | } | |
466 | Ok(size) | |
467 | } | |
468 | ||
469 | pub struct AVIDemuxerCreator { } | |
470 | ||
471 | impl DemuxerCreator for AVIDemuxerCreator { | |
472 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { | |
473 | Box::new(AVIDemuxer::new(br)) | |
474 | } | |
475 | fn get_name(&self) -> &'static str { "avi" } | |
476 | } | |
477 | ||
478 | #[cfg(test)] | |
479 | mod test { | |
480 | use super::*; | |
481 | use std::fs::File; | |
482 | ||
483 | #[test] | |
484 | fn test_avi_demux() { | |
485 | let mut file = File::open("assets/Indeo/laser05.avi").unwrap(); | |
486 | let mut fr = FileReader::new_read(&mut file); | |
487 | let mut br = ByteReader::new(&mut fr); | |
488 | let mut dmx = AVIDemuxer::new(&mut br); | |
489 | let mut sm = StreamManager::new(); | |
490 | let mut si = SeekIndex::new(); | |
491 | dmx.open(&mut sm, &mut si).unwrap(); | |
492 | ||
493 | loop { | |
494 | let pktres = dmx.get_frame(&mut sm); | |
495 | if let Err(e) = pktres { | |
496 | if e == DemuxerError::EOF { break; } | |
497 | panic!("error"); | |
498 | } | |
499 | let pkt = pktres.unwrap(); | |
500 | println!("Got {}", pkt); | |
501 | } | |
502 | } | |
503 | } |