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Commit | Line | Data |
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ca41f125 | 1 | use super::*; |
ccae5343 | 2 | use register; |
ca41f125 KS |
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)] | |
eb71d98f | 41 | struct AVIDemuxer<'a> { |
ca41f125 KS |
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, | |
e189501e KS |
50 | tb_num: u32, |
51 | tb_den: u32, | |
ca41f125 KS |
52 | } |
53 | ||
c84e0be0 | 54 | #[derive(Debug,Clone,Copy,PartialEq)] |
ca41f125 KS |
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 | ||
66116504 KS |
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 | ||
ca41f125 KS |
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 { | |
aa7dab8e KS |
81 | if (self.src.tell() & 1) == 1 { |
82 | self.src.read_skip(1)?; | |
83 | self.movi_size -= 1; | |
3ff4cebb | 84 | if self.movi_size == 0 { return Err(EOF); } |
aa7dab8e | 85 | } |
ca41f125 KS |
86 | self.src.read_buf(&mut tag)?; |
87 | let size = self.src.read_u32le()? as usize; | |
88 | if mktag!(tag) == mktag!(b"JUNK") { | |
89 | self.movi_size -= size + 8; | |
90 | self.src.read_skip(size)?; | |
91 | continue; | |
92 | } | |
70fc42e8 KS |
93 | if mktag!(tag) == mktag!(b"LIST") { |
94 | self.movi_size -= 12; | |
95 | self.src.read_skip(4)?; | |
96 | if self.movi_size == 0 { return Err(EOF); } | |
97 | continue; | |
98 | } | |
ca41f125 KS |
99 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
100 | return Err(InvalidData); | |
101 | } | |
102 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); | |
103 | let str = self.dmx.get_stream(stream_no as usize); | |
104 | if let None = str { return Err(InvalidData); } | |
105 | let stream = str.unwrap(); | |
e189501e KS |
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)?; | |
ca41f125 KS |
109 | self.cur_frame[stream_no as usize] += 1; |
110 | self.movi_size -= size + 8; | |
111 | ||
112 | return Ok(pkt); | |
113 | } | |
114 | } | |
115 | ||
116 | #[allow(unused_variables)] | |
117 | fn seek(&mut self, time: u64) -> DemuxerResult<()> { | |
118 | if !self.opened { return Err(NoSuchInput); } | |
119 | Err(NotImplemented) | |
120 | } | |
121 | } | |
122 | ||
123 | impl<'a> AVIDemuxer<'a> { | |
eb71d98f | 124 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
ca41f125 KS |
125 | AVIDemuxer { |
126 | cur_frame: Vec::new(), | |
127 | num_streams: 0, | |
128 | opened: false, | |
129 | src: io, | |
130 | size: 0, | |
131 | movi_size: 0, | |
132 | sstate: StreamState::new(), | |
e189501e KS |
133 | tb_num: 0, |
134 | tb_den: 0, | |
ca41f125 KS |
135 | dmx: Demuxer::new() |
136 | } | |
137 | } | |
138 | ||
139 | fn parse_chunk(&mut self, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { | |
140 | if csize < 8 { return Err(InvalidData); } | |
141 | if depth > 42 { return Err(InvalidData); } | |
142 | ||
143 | let tag = self.src.read_u32be()?; | |
144 | let size = self.src.read_u32le()? as usize; | |
145 | if size > csize { return Err(InvalidData); } | |
c84e0be0 KS |
146 | if RIFFTag::Chunk(tag) == end_tag { |
147 | return Ok((size, true)); | |
ca41f125 | 148 | } |
f149a5b7 KS |
149 | let is_list = is_list_tag(tag); |
150 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; | |
c84e0be0 KS |
151 | if RIFFTag::List(tag, ltag) == end_tag { |
152 | return Ok((size, true)); | |
ca41f125 | 153 | } |
c84e0be0 | 154 | |
ca41f125 | 155 | for i in 0..CHUNKS.len() { |
c84e0be0 KS |
156 | if RIFFTag::Chunk(tag) == CHUNKS[i].tag { |
157 | let psize = (CHUNKS[i].parse)(self, size)?; | |
158 | if psize != size { return Err(InvalidData); } | |
f6fa6f34 | 159 | if (psize & 1) == 1 { self.src.read_skip(1)?; } |
c84e0be0 | 160 | return Ok((size + 8, false)); |
ca41f125 | 161 | } |
c84e0be0 KS |
162 | if RIFFTag::List(tag, ltag) == CHUNKS[i].tag { |
163 | let mut rest_size = size - 4; | |
164 | let psize = (CHUNKS[i].parse)(self, rest_size)?; | |
165 | if psize > rest_size { return Err(InvalidData); } | |
166 | rest_size -= psize; | |
167 | while rest_size > 0 { | |
168 | let (psize, _) = self.parse_chunk(end_tag, rest_size, depth+1)?; | |
ca41f125 KS |
169 | if psize > rest_size { return Err(InvalidData); } |
170 | rest_size -= psize; | |
f6fa6f34 KS |
171 | if (psize & 1) == 1 { |
172 | if rest_size > 0 { | |
173 | rest_size -= 1; | |
174 | } | |
175 | } | |
ca41f125 | 176 | } |
c84e0be0 KS |
177 | |
178 | return Ok((size + 8, false)); | |
ca41f125 KS |
179 | } |
180 | } | |
f149a5b7 KS |
181 | if !is_list { |
182 | self.src.read_skip(size)?; | |
183 | } else { | |
184 | if size < 4 { return Err(InvalidData); } | |
185 | self.src.read_skip(size - 4)?; | |
186 | } | |
f6fa6f34 | 187 | if (size & 1) == 1 { self.src.read_skip(1)?; } |
ca41f125 KS |
188 | return Ok((size + 8, false)); |
189 | } | |
190 | ||
191 | fn read_header(&mut self) -> DemuxerResult<()> { | |
192 | let riff_tag = self.src.read_u32be()?; | |
193 | let size = self.src.read_u32le()? as usize; | |
194 | let avi_tag = self.src.read_u32be()?; | |
195 | if riff_tag != mktag!(b"RIFF") || avi_tag != mktag!(b"AVI ") { | |
196 | return Err(InvalidData); | |
197 | } | |
198 | self.size = size; | |
199 | let mut rest_size = size; | |
200 | loop { | |
201 | let (csz, end) = self.parse_chunk(RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; | |
202 | if end { self.movi_size = csz - 4; break; } | |
203 | rest_size -= csz; | |
204 | } | |
205 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { | |
206 | return Err(InvalidData); | |
207 | } | |
208 | Ok(()) | |
209 | } | |
210 | ||
211 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { | |
212 | if size == 0 { return Ok(None); } | |
213 | let mut edvec: Vec<u8> = Vec::with_capacity(size); | |
214 | edvec.resize(size, 0); | |
215 | self.src.read_buf(&mut edvec)?; | |
216 | Ok(Some(edvec)) | |
217 | } | |
218 | } | |
219 | ||
220 | const CHUNKS: [RIFFParser; 6] = [ | |
221 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, | |
222 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, | |
223 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, | |
224 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, | |
225 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, | |
226 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, | |
227 | ]; | |
228 | ||
229 | fn is_list_tag(tag: u32) -> bool { | |
230 | for i in 0..CHUNKS.len() { | |
231 | if let RIFFTag::List(ltag, _) = CHUNKS[i].tag { | |
232 | if tag == ltag { | |
233 | return true; | |
234 | } | |
235 | } | |
236 | } | |
237 | false | |
238 | } | |
239 | ||
240 | #[allow(unused_variables)] | |
241 | fn parse_hdrl(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
242 | Ok(0) | |
243 | } | |
244 | ||
245 | #[allow(unused_variables)] | |
246 | fn parse_strl(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
247 | Ok(0) | |
248 | } | |
249 | ||
250 | #[allow(unused_variables)] | |
251 | fn parse_strh(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
252 | if size < 0x38 { return Err(InvalidData); } | |
253 | let tag = dmx.src.read_u32be()?; //stream type | |
254 | let fcc = dmx.src.read_u32be()?; //handler(fourcc) | |
255 | dmx.src.read_u32le()?; //flags | |
256 | dmx.src.read_skip(2)?; //priority | |
257 | dmx.src.read_skip(2)?; //language | |
258 | dmx.src.read_skip(4)?; //initial frames | |
e189501e KS |
259 | dmx.tb_num = dmx.src.read_u32le()?; //scale |
260 | dmx.tb_den = dmx.src.read_u32le()?; //rate | |
ca41f125 KS |
261 | dmx.src.read_skip(4)?; //start |
262 | dmx.src.read_skip(4)?; //length | |
263 | dmx.src.read_skip(4)?; //buf size | |
264 | dmx.src.read_skip(4)?; //quality | |
265 | dmx.src.read_skip(4)?; //sample size | |
266 | let a = dmx.src.read_u16le()?; | |
267 | let b = dmx.src.read_u16le()?; | |
268 | let c = dmx.src.read_u16le()?; | |
269 | let d = dmx.src.read_u16le()?; | |
270 | ||
271 | dmx.src.read_skip(size - 0x38)?; | |
272 | ||
273 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { | |
274 | return Err(InvalidData); | |
275 | } | |
276 | if tag == mktag!(b"vids") { | |
277 | dmx.sstate.strm_type = Some(StreamType::Video); | |
278 | } else if tag == mktag!(b"auds") { | |
279 | dmx.sstate.strm_type = Some(StreamType::Audio); | |
280 | } else { | |
281 | dmx.sstate.strm_type = Some(StreamType::Data); | |
282 | } | |
283 | dmx.sstate.got_strf = false; | |
284 | ||
285 | Ok(size) | |
286 | } | |
287 | ||
288 | fn parse_strf(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
289 | if let None = dmx.sstate.strm_type { return Err(InvalidData); } | |
290 | match dmx.sstate.strm_type.unwrap() { | |
291 | StreamType::Video => parse_strf_vids(dmx, size), | |
292 | StreamType::Audio => parse_strf_auds(dmx, size), | |
293 | _ => parse_strf_xxxx(dmx, size), | |
294 | } | |
295 | } | |
296 | ||
297 | #[allow(unused_variables)] | |
298 | fn parse_strf_vids(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
299 | if size < 40 { return Err(InvalidData); } | |
300 | let bi_size = dmx.src.read_u32le()?; | |
301 | if (bi_size as usize) > size { return Err(InvalidData); } | |
302 | let width = dmx.src.read_u32le()?; | |
303 | let height = dmx.src.read_u32le()? as i32; | |
304 | let planes = dmx.src.read_u16le()?; | |
305 | let bitcount = dmx.src.read_u16le()?; | |
ccae5343 KS |
306 | let mut compression: [u8; 4] = [0; 4]; |
307 | dmx.src.read_buf(&mut compression)?; | |
ca41f125 KS |
308 | let img_size = dmx.src.read_u32le()?; |
309 | let xdpi = dmx.src.read_u32le()?; | |
310 | let ydpi = dmx.src.read_u32le()?; | |
311 | let colors = dmx.src.read_u32le()?; | |
312 | let imp_colors = dmx.src.read_u32le()?; | |
313 | ||
314 | let flip = height < 0; | |
315 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; | |
66116504 | 316 | let vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, PAL8_FORMAT); |
ca41f125 KS |
317 | let vci = NACodecTypeInfo::Video(vhdr); |
318 | let edata = dmx.read_extradata(size - 40)?; | |
ccae5343 KS |
319 | let cname = match register::find_codec_from_avi_fourcc(&compression) { |
320 | None => "unknown", | |
321 | Some(name) => name, | |
322 | }; | |
323 | let vinfo = NACodecInfo::new(cname, vci, edata); | |
e189501e | 324 | let res = dmx.dmx.add_stream(NAStream::new(StreamType::Video, dmx.sstate.strm_no as u32, vinfo, dmx.tb_num, dmx.tb_den)); |
ca41f125 KS |
325 | if let None = res { return Err(MemoryError); } |
326 | dmx.sstate.reset(); | |
327 | Ok(size) | |
328 | } | |
329 | ||
330 | #[allow(unused_variables)] | |
331 | fn parse_strf_auds(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
332 | if size < 16 { return Err(InvalidData); } | |
333 | let w_format_tag = dmx.src.read_u16le()?; | |
334 | let channels = dmx.src.read_u16le()?; | |
335 | let samplespersec = dmx.src.read_u32le()?; | |
336 | let avgbytespersec = dmx.src.read_u32le()?; | |
337 | let block_align = dmx.src.read_u16le()?; | |
d293626f | 338 | let bits_per_sample = dmx.src.read_u16le()? * 8; |
ca41f125 KS |
339 | |
340 | let soniton = NASoniton::new(bits_per_sample as u8, SONITON_FLAG_SIGNED); | |
341 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); | |
342 | let edata = dmx.read_extradata(size - 16)?; | |
ccae5343 KS |
343 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { |
344 | None => "unknown", | |
345 | Some(name) => name, | |
346 | }; | |
347 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); | |
e189501e | 348 | let res = dmx.dmx.add_stream(NAStream::new(StreamType::Audio, dmx.sstate.strm_no as u32, ainfo, dmx.tb_num, dmx.tb_den)); |
ca41f125 KS |
349 | if let None = res { return Err(MemoryError); } |
350 | dmx.sstate.reset(); | |
351 | Ok(size) | |
352 | } | |
353 | ||
354 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
355 | let edata = dmx.read_extradata(size)?; | |
ccae5343 | 356 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); |
e189501e | 357 | let res = dmx.dmx.add_stream(NAStream::new(StreamType::Data, dmx.sstate.strm_no as u32, info, dmx.tb_num, dmx.tb_den)); |
ca41f125 KS |
358 | if let None = res { return Err(MemoryError); } |
359 | dmx.sstate.reset(); | |
360 | Ok(size) | |
361 | } | |
362 | ||
363 | #[allow(unused_variables)] | |
364 | fn parse_avih(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
365 | if size < 0x38 { return Err(InvalidData); } | |
366 | let timebase = dmx.src.read_u32le()?; //microsec per frame | |
367 | dmx.src.read_skip(4)?; //max frame size | |
368 | dmx.src.read_skip(4)?; //padding | |
369 | dmx.src.read_u32le()?; //flags | |
370 | let frames = dmx.src.read_u32le()?; //frames | |
371 | dmx.src.read_skip(4)?; //initial frames | |
372 | let streams = dmx.src.read_u32le()?; //streams | |
373 | if streams > 100 { return Err(InvalidData); } | |
374 | dmx.num_streams = streams as u8; | |
375 | ||
376 | dmx.src.read_skip(4)?; //buf size | |
377 | let width = dmx.src.read_u32le()?; //width | |
378 | let height = dmx.src.read_u32le()? as i32; //height | |
379 | dmx.src.read_skip(16)?; //reserved | |
380 | ||
381 | dmx.cur_frame.resize(streams as usize, 0); | |
382 | dmx.src.read_skip(size - 0x38)?; | |
383 | Ok(size) | |
384 | } | |
385 | ||
386 | fn parse_junk(dmx: &mut AVIDemuxer, size: usize) -> DemuxerResult<usize> { | |
387 | dmx.src.read_skip(size)?; | |
388 | Ok(size) | |
389 | } | |
390 | ||
eb71d98f KS |
391 | pub struct AVIDemuxerCreator { } |
392 | ||
393 | impl DemuxerCreator for AVIDemuxerCreator { | |
394 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<Demux<'a> + 'a> { | |
395 | Box::new(AVIDemuxer::new(br)) | |
396 | } | |
397 | fn get_name(&self) -> &'static str { "avi" } | |
398 | } | |
399 | ||
ca41f125 KS |
400 | #[cfg(test)] |
401 | mod test { | |
402 | use super::*; | |
403 | use std::fs::File; | |
404 | ||
405 | #[test] | |
406 | fn test_avi_demux() { | |
407 | let mut file = File::open("assets/laser05.avi").unwrap(); | |
408 | let mut fr = FileReader::new_read(&mut file); | |
409 | let mut br = ByteReader::new(&mut fr); | |
410 | let mut dmx = AVIDemuxer::new(&mut br); | |
411 | dmx.open().unwrap(); | |
412 | ||
413 | loop { | |
414 | let pktres = dmx.get_frame(); | |
415 | if let Err(e) = pktres { | |
b1be9318 | 416 | if e == DemuxerError::EOF { break; } |
ca41f125 KS |
417 | panic!("error"); |
418 | } | |
419 | let pkt = pktres.unwrap(); | |
420 | println!("Got {}", pkt); | |
421 | } | |
422 | } | |
423 | } |