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