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