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38953fb5 KS |
1 | use nihav_core::demuxers::*; |
2 | use nihav_core::register; | |
3 | use nihav_core::demuxers::DemuxerError::*; | |
ca41f125 KS |
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)] | |
eb71d98f | 38 | struct AVIDemuxer<'a> { |
ca41f125 KS |
39 | src: &'a mut ByteReader<'a>, |
40 | cur_frame: Vec<u64>, | |
41 | num_streams: u8, | |
ca41f125 KS |
42 | size: usize, |
43 | movi_size: usize, | |
44 | sstate: StreamState, | |
e189501e KS |
45 | tb_num: u32, |
46 | tb_den: u32, | |
ca41f125 KS |
47 | } |
48 | ||
c84e0be0 | 49 | #[derive(Debug,Clone,Copy,PartialEq)] |
ca41f125 KS |
50 | enum RIFFTag { |
51 | Chunk(u32), | |
52 | List(u32,u32), | |
53 | } | |
54 | ||
55 | struct RIFFParser { | |
56 | tag: RIFFTag, | |
bcfeae48 | 57 | parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>, |
ca41f125 KS |
58 | } |
59 | ||
bcfeae48 | 60 | impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { |
ca41f125 | 61 | #[allow(unused_variables)] |
bcfeae48 KS |
62 | fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
63 | self.read_header(strmgr)?; | |
ca41f125 KS |
64 | Ok(()) |
65 | } | |
66 | ||
bcfeae48 | 67 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
ca41f125 KS |
68 | if self.movi_size == 0 { return Err(EOF); } |
69 | let mut tag: [u8; 4] = [0; 4]; | |
70 | loop { | |
aa7dab8e KS |
71 | if (self.src.tell() & 1) == 1 { |
72 | self.src.read_skip(1)?; | |
73 | self.movi_size -= 1; | |
3ff4cebb | 74 | if self.movi_size == 0 { return Err(EOF); } |
aa7dab8e | 75 | } |
ca41f125 KS |
76 | self.src.read_buf(&mut tag)?; |
77 | let size = self.src.read_u32le()? as usize; | |
78 | if mktag!(tag) == mktag!(b"JUNK") { | |
79 | self.movi_size -= size + 8; | |
80 | self.src.read_skip(size)?; | |
cf00c65a | 81 | if self.movi_size == 0 { return Err(EOF); } |
ca41f125 KS |
82 | continue; |
83 | } | |
70fc42e8 KS |
84 | if mktag!(tag) == mktag!(b"LIST") { |
85 | self.movi_size -= 12; | |
86 | self.src.read_skip(4)?; | |
87 | if self.movi_size == 0 { return Err(EOF); } | |
88 | continue; | |
89 | } | |
ca41f125 KS |
90 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
91 | return Err(InvalidData); | |
92 | } | |
93 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); | |
bcfeae48 | 94 | let str = strmgr.get_stream(stream_no as usize); |
c83013a1 | 95 | if str.is_none() { return Err(InvalidData); } |
ca41f125 | 96 | let stream = str.unwrap(); |
741d97d8 KS |
97 | if size == 0 { |
98 | self.movi_size -= 8; | |
99 | if self.movi_size == 0 { return Err(EOF); } | |
100 | continue; | |
101 | } | |
e189501e KS |
102 | let (tb_num, tb_den) = stream.get_timebase(); |
103 | let ts = NATimeInfo::new(Some(self.cur_frame[stream_no as usize]), None, None, tb_num, tb_den); | |
104 | let pkt = self.src.read_packet(stream, ts, false, size)?; | |
1a151e53 | 105 | self.cur_frame[stream_no as usize] += 1; |
ca41f125 KS |
106 | self.movi_size -= size + 8; |
107 | ||
108 | return Ok(pkt); | |
109 | } | |
110 | } | |
111 | ||
112 | #[allow(unused_variables)] | |
113 | fn seek(&mut self, time: u64) -> DemuxerResult<()> { | |
ca41f125 KS |
114 | Err(NotImplemented) |
115 | } | |
116 | } | |
117 | ||
118 | impl<'a> AVIDemuxer<'a> { | |
eb71d98f | 119 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
ca41f125 KS |
120 | AVIDemuxer { |
121 | cur_frame: Vec::new(), | |
122 | num_streams: 0, | |
ca41f125 KS |
123 | src: io, |
124 | size: 0, | |
125 | movi_size: 0, | |
126 | sstate: StreamState::new(), | |
e189501e KS |
127 | tb_num: 0, |
128 | tb_den: 0, | |
ca41f125 KS |
129 | } |
130 | } | |
131 | ||
bcfeae48 | 132 | fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { |
ca41f125 KS |
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 | 141 | } |
f149a5b7 KS |
142 | let is_list = is_list_tag(tag); |
143 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; | |
c84e0be0 KS |
144 | if RIFFTag::List(tag, ltag) == end_tag { |
145 | return Ok((size, true)); | |
ca41f125 | 146 | } |
c84e0be0 | 147 | |
c83013a1 KS |
148 | for chunk in CHUNKS.iter() { |
149 | if RIFFTag::Chunk(tag) == chunk.tag { | |
150 | let psize = (chunk.parse)(self, strmgr, size)?; | |
c84e0be0 | 151 | if psize != size { return Err(InvalidData); } |
f6fa6f34 | 152 | if (psize & 1) == 1 { self.src.read_skip(1)?; } |
c84e0be0 | 153 | return Ok((size + 8, false)); |
ca41f125 | 154 | } |
c83013a1 | 155 | if RIFFTag::List(tag, ltag) == chunk.tag { |
c84e0be0 | 156 | let mut rest_size = size - 4; |
c83013a1 | 157 | let psize = (chunk.parse)(self, strmgr, rest_size)?; |
c84e0be0 KS |
158 | if psize > rest_size { return Err(InvalidData); } |
159 | rest_size -= psize; | |
160 | while rest_size > 0 { | |
bcfeae48 | 161 | let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; |
ca41f125 KS |
162 | if psize > rest_size { return Err(InvalidData); } |
163 | rest_size -= psize; | |
c83013a1 KS |
164 | if ((psize & 1) == 1) && (rest_size > 0) { |
165 | rest_size -= 1; | |
f6fa6f34 | 166 | } |
ca41f125 | 167 | } |
c84e0be0 KS |
168 | |
169 | return Ok((size + 8, false)); | |
ca41f125 KS |
170 | } |
171 | } | |
f149a5b7 KS |
172 | if !is_list { |
173 | self.src.read_skip(size)?; | |
174 | } else { | |
175 | if size < 4 { return Err(InvalidData); } | |
176 | self.src.read_skip(size - 4)?; | |
177 | } | |
f6fa6f34 | 178 | if (size & 1) == 1 { self.src.read_skip(1)?; } |
c83013a1 | 179 | Ok((size + 8, false)) |
ca41f125 KS |
180 | } |
181 | ||
bcfeae48 | 182 | fn read_header(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> { |
ca41f125 KS |
183 | let riff_tag = self.src.read_u32be()?; |
184 | let size = self.src.read_u32le()? as usize; | |
185 | let avi_tag = self.src.read_u32be()?; | |
186 | if riff_tag != mktag!(b"RIFF") || avi_tag != mktag!(b"AVI ") { | |
187 | return Err(InvalidData); | |
188 | } | |
189 | self.size = size; | |
190 | let mut rest_size = size; | |
191 | loop { | |
bcfeae48 | 192 | let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; |
ca41f125 KS |
193 | if end { self.movi_size = csz - 4; break; } |
194 | rest_size -= csz; | |
195 | } | |
196 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { | |
197 | return Err(InvalidData); | |
198 | } | |
199 | Ok(()) | |
200 | } | |
201 | ||
202 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { | |
203 | if size == 0 { return Ok(None); } | |
c83013a1 | 204 | let mut edvec: Vec<u8> = vec![0; size]; |
ca41f125 KS |
205 | self.src.read_buf(&mut edvec)?; |
206 | Ok(Some(edvec)) | |
207 | } | |
208 | } | |
209 | ||
210 | const CHUNKS: [RIFFParser; 6] = [ | |
211 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, | |
212 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, | |
213 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, | |
214 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, | |
215 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, | |
216 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, | |
217 | ]; | |
218 | ||
219 | fn is_list_tag(tag: u32) -> bool { | |
c83013a1 KS |
220 | for chunk in CHUNKS.iter() { |
221 | if let RIFFTag::List(ltag, _) = chunk.tag { | |
ca41f125 KS |
222 | if tag == ltag { |
223 | return true; | |
224 | } | |
225 | } | |
226 | } | |
227 | false | |
228 | } | |
229 | ||
230 | #[allow(unused_variables)] | |
bcfeae48 | 231 | fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
232 | Ok(0) |
233 | } | |
234 | ||
235 | #[allow(unused_variables)] | |
bcfeae48 | 236 | fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
237 | Ok(0) |
238 | } | |
239 | ||
240 | #[allow(unused_variables)] | |
bcfeae48 | 241 | fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
242 | if size < 0x38 { return Err(InvalidData); } |
243 | let tag = dmx.src.read_u32be()?; //stream type | |
244 | let fcc = dmx.src.read_u32be()?; //handler(fourcc) | |
245 | dmx.src.read_u32le()?; //flags | |
246 | dmx.src.read_skip(2)?; //priority | |
247 | dmx.src.read_skip(2)?; //language | |
248 | dmx.src.read_skip(4)?; //initial frames | |
e189501e KS |
249 | dmx.tb_num = dmx.src.read_u32le()?; //scale |
250 | dmx.tb_den = dmx.src.read_u32le()?; //rate | |
ca41f125 KS |
251 | dmx.src.read_skip(4)?; //start |
252 | dmx.src.read_skip(4)?; //length | |
253 | dmx.src.read_skip(4)?; //buf size | |
254 | dmx.src.read_skip(4)?; //quality | |
255 | dmx.src.read_skip(4)?; //sample size | |
256 | let a = dmx.src.read_u16le()?; | |
257 | let b = dmx.src.read_u16le()?; | |
258 | let c = dmx.src.read_u16le()?; | |
259 | let d = dmx.src.read_u16le()?; | |
260 | ||
261 | dmx.src.read_skip(size - 0x38)?; | |
262 | ||
263 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { | |
264 | return Err(InvalidData); | |
265 | } | |
266 | if tag == mktag!(b"vids") { | |
267 | dmx.sstate.strm_type = Some(StreamType::Video); | |
268 | } else if tag == mktag!(b"auds") { | |
269 | dmx.sstate.strm_type = Some(StreamType::Audio); | |
270 | } else { | |
271 | dmx.sstate.strm_type = Some(StreamType::Data); | |
272 | } | |
273 | dmx.sstate.got_strf = false; | |
274 | ||
275 | Ok(size) | |
276 | } | |
277 | ||
bcfeae48 | 278 | fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
c83013a1 | 279 | if dmx.sstate.strm_type.is_none() { return Err(InvalidData); } |
ca41f125 | 280 | match dmx.sstate.strm_type.unwrap() { |
bcfeae48 KS |
281 | StreamType::Video => parse_strf_vids(dmx, strmgr, size), |
282 | StreamType::Audio => parse_strf_auds(dmx, strmgr, size), | |
283 | _ => parse_strf_xxxx(dmx, strmgr, size), | |
ca41f125 KS |
284 | } |
285 | } | |
286 | ||
287 | #[allow(unused_variables)] | |
bcfeae48 | 288 | fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
289 | if size < 40 { return Err(InvalidData); } |
290 | let bi_size = dmx.src.read_u32le()?; | |
291 | if (bi_size as usize) > size { return Err(InvalidData); } | |
292 | let width = dmx.src.read_u32le()?; | |
293 | let height = dmx.src.read_u32le()? as i32; | |
294 | let planes = dmx.src.read_u16le()?; | |
295 | let bitcount = dmx.src.read_u16le()?; | |
ccae5343 KS |
296 | let mut compression: [u8; 4] = [0; 4]; |
297 | dmx.src.read_buf(&mut compression)?; | |
ca41f125 KS |
298 | let img_size = dmx.src.read_u32le()?; |
299 | let xdpi = dmx.src.read_u32le()?; | |
300 | let ydpi = dmx.src.read_u32le()?; | |
301 | let colors = dmx.src.read_u32le()?; | |
302 | let imp_colors = dmx.src.read_u32le()?; | |
303 | ||
304 | let flip = height < 0; | |
305 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; | |
66116504 | 306 | let vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, PAL8_FORMAT); |
ca41f125 KS |
307 | let vci = NACodecTypeInfo::Video(vhdr); |
308 | let edata = dmx.read_extradata(size - 40)?; | |
ccae5343 KS |
309 | let cname = match register::find_codec_from_avi_fourcc(&compression) { |
310 | None => "unknown", | |
311 | Some(name) => name, | |
312 | }; | |
313 | let vinfo = NACodecInfo::new(cname, vci, edata); | |
c83013a1 KS |
314 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, u32::from(dmx.sstate.strm_no), vinfo, dmx.tb_num, dmx.tb_den)); |
315 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
316 | dmx.sstate.reset(); |
317 | Ok(size) | |
318 | } | |
319 | ||
320 | #[allow(unused_variables)] | |
bcfeae48 | 321 | fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
322 | if size < 16 { return Err(InvalidData); } |
323 | let w_format_tag = dmx.src.read_u16le()?; | |
324 | let channels = dmx.src.read_u16le()?; | |
325 | let samplespersec = dmx.src.read_u32le()?; | |
326 | let avgbytespersec = dmx.src.read_u32le()?; | |
327 | let block_align = dmx.src.read_u16le()?; | |
d293626f | 328 | let bits_per_sample = dmx.src.read_u16le()? * 8; |
ca41f125 KS |
329 | |
330 | let soniton = NASoniton::new(bits_per_sample as u8, SONITON_FLAG_SIGNED); | |
331 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); | |
332 | let edata = dmx.read_extradata(size - 16)?; | |
ccae5343 KS |
333 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { |
334 | None => "unknown", | |
335 | Some(name) => name, | |
336 | }; | |
337 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); | |
c83013a1 KS |
338 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, u32::from(dmx.sstate.strm_no), ainfo, dmx.tb_num, dmx.tb_den)); |
339 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
340 | dmx.sstate.reset(); |
341 | Ok(size) | |
342 | } | |
343 | ||
bcfeae48 | 344 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 | 345 | let edata = dmx.read_extradata(size)?; |
ccae5343 | 346 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); |
c83013a1 KS |
347 | let res = strmgr.add_stream(NAStream::new(StreamType::Data, u32::from(dmx.sstate.strm_no), info, dmx.tb_num, dmx.tb_den)); |
348 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
349 | dmx.sstate.reset(); |
350 | Ok(size) | |
351 | } | |
352 | ||
353 | #[allow(unused_variables)] | |
bcfeae48 | 354 | fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
355 | if size < 0x38 { return Err(InvalidData); } |
356 | let timebase = dmx.src.read_u32le()?; //microsec per frame | |
357 | dmx.src.read_skip(4)?; //max frame size | |
358 | dmx.src.read_skip(4)?; //padding | |
359 | dmx.src.read_u32le()?; //flags | |
360 | let frames = dmx.src.read_u32le()?; //frames | |
361 | dmx.src.read_skip(4)?; //initial frames | |
362 | let streams = dmx.src.read_u32le()?; //streams | |
363 | if streams > 100 { return Err(InvalidData); } | |
364 | dmx.num_streams = streams as u8; | |
365 | ||
366 | dmx.src.read_skip(4)?; //buf size | |
367 | let width = dmx.src.read_u32le()?; //width | |
368 | let height = dmx.src.read_u32le()? as i32; //height | |
369 | dmx.src.read_skip(16)?; //reserved | |
370 | ||
371 | dmx.cur_frame.resize(streams as usize, 0); | |
372 | dmx.src.read_skip(size - 0x38)?; | |
373 | Ok(size) | |
374 | } | |
375 | ||
bcfeae48 KS |
376 | #[allow(unused_variables)] |
377 | fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
ca41f125 KS |
378 | dmx.src.read_skip(size)?; |
379 | Ok(size) | |
380 | } | |
381 | ||
eb71d98f KS |
382 | pub struct AVIDemuxerCreator { } |
383 | ||
384 | impl DemuxerCreator for AVIDemuxerCreator { | |
6011e201 | 385 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
eb71d98f KS |
386 | Box::new(AVIDemuxer::new(br)) |
387 | } | |
388 | fn get_name(&self) -> &'static str { "avi" } | |
389 | } | |
390 | ||
ca41f125 KS |
391 | #[cfg(test)] |
392 | mod test { | |
393 | use super::*; | |
394 | use std::fs::File; | |
395 | ||
396 | #[test] | |
397 | fn test_avi_demux() { | |
1678d59a | 398 | let mut file = File::open("assets/Indeo/laser05.avi").unwrap(); |
ca41f125 KS |
399 | let mut fr = FileReader::new_read(&mut file); |
400 | let mut br = ByteReader::new(&mut fr); | |
401 | let mut dmx = AVIDemuxer::new(&mut br); | |
bcfeae48 KS |
402 | let mut sm = StreamManager::new(); |
403 | dmx.open(&mut sm).unwrap(); | |
ca41f125 KS |
404 | |
405 | loop { | |
bcfeae48 | 406 | let pktres = dmx.get_frame(&mut sm); |
ca41f125 | 407 | if let Err(e) = pktres { |
b1be9318 | 408 | if e == DemuxerError::EOF { break; } |
ca41f125 KS |
409 | panic!("error"); |
410 | } | |
411 | let pkt = pktres.unwrap(); | |
412 | println!("Got {}", pkt); | |
413 | } | |
414 | } | |
415 | } |