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Commit | Line | Data |
---|---|---|
38953fb5 | 1 | use nihav_core::demuxers::*; |
32f7cbe5 | 2 | use nihav_registry::register; |
38953fb5 | 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 | ||
956ef3a0 KS |
37 | struct PalInfo { |
38 | pal: Arc<[u8; 1024]>, | |
39 | changed: bool, | |
40 | stream_no: usize, | |
41 | } | |
42 | ||
ca41f125 | 43 | #[allow(dead_code)] |
eb71d98f | 44 | struct AVIDemuxer<'a> { |
ca41f125 KS |
45 | src: &'a mut ByteReader<'a>, |
46 | cur_frame: Vec<u64>, | |
47 | num_streams: u8, | |
ca41f125 KS |
48 | size: usize, |
49 | movi_size: usize, | |
33b5a8f0 KS |
50 | movi_pos: u64, |
51 | movi_orig: usize, | |
ca41f125 | 52 | sstate: StreamState, |
e189501e KS |
53 | tb_num: u32, |
54 | tb_den: u32, | |
f39f0623 | 55 | key_offs: Vec<u64>, |
956ef3a0 | 56 | pal: Vec<PalInfo>, |
ca41f125 KS |
57 | } |
58 | ||
c84e0be0 | 59 | #[derive(Debug,Clone,Copy,PartialEq)] |
ca41f125 KS |
60 | enum RIFFTag { |
61 | Chunk(u32), | |
62 | List(u32,u32), | |
63 | } | |
64 | ||
65 | struct RIFFParser { | |
66 | tag: RIFFTag, | |
bcfeae48 | 67 | parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>, |
ca41f125 KS |
68 | } |
69 | ||
bcfeae48 | 70 | impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { |
33b5a8f0 | 71 | fn open(&mut self, strmgr: &mut StreamManager, seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
4a6263cf | 72 | self.read_header(strmgr, seek_index)?; |
ca41f125 KS |
73 | Ok(()) |
74 | } | |
75 | ||
bcfeae48 | 76 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
ca41f125 KS |
77 | if self.movi_size == 0 { return Err(EOF); } |
78 | let mut tag: [u8; 4] = [0; 4]; | |
79 | loop { | |
aa7dab8e KS |
80 | if (self.src.tell() & 1) == 1 { |
81 | self.src.read_skip(1)?; | |
82 | self.movi_size -= 1; | |
3ff4cebb | 83 | if self.movi_size == 0 { return Err(EOF); } |
aa7dab8e | 84 | } |
f39f0623 | 85 | let is_keyframe = self.key_offs.binary_search(&self.src.tell()).is_ok(); |
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)?; | |
cf00c65a | 91 | if self.movi_size == 0 { return Err(EOF); } |
ca41f125 KS |
92 | continue; |
93 | } | |
70fc42e8 KS |
94 | if mktag!(tag) == mktag!(b"LIST") { |
95 | self.movi_size -= 12; | |
96 | self.src.read_skip(4)?; | |
97 | if self.movi_size == 0 { return Err(EOF); } | |
98 | continue; | |
99 | } | |
30d39a7a | 100 | if (tag[0] == b'i' && tag[1] == b'x') || (&tag == b"idx1") { |
6350b1ee KS |
101 | return Err(EOF); |
102 | } | |
ca41f125 KS |
103 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
104 | return Err(InvalidData); | |
105 | } | |
106 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); | |
956ef3a0 KS |
107 | if tag[2] == b'p' && tag[3] == b'c' { |
108 | self.parse_palette_change(stream_no as usize, size)?; | |
109 | self.movi_size -= size; | |
110 | if self.movi_size == 0 { return Err(EOF); } | |
111 | continue; | |
112 | } | |
bcfeae48 | 113 | let str = strmgr.get_stream(stream_no as usize); |
c83013a1 | 114 | if str.is_none() { return Err(InvalidData); } |
ca41f125 | 115 | let stream = str.unwrap(); |
741d97d8 KS |
116 | if size == 0 { |
117 | self.movi_size -= 8; | |
118 | if self.movi_size == 0 { return Err(EOF); } | |
119 | continue; | |
120 | } | |
e189501e KS |
121 | let (tb_num, tb_den) = stream.get_timebase(); |
122 | let ts = NATimeInfo::new(Some(self.cur_frame[stream_no as usize]), None, None, tb_num, tb_den); | |
956ef3a0 KS |
123 | let mut pkt = self.src.read_packet(stream, ts, is_keyframe, size)?; |
124 | for pe in self.pal.iter_mut() { | |
125 | if pe.stream_no == (stream_no as usize) { | |
126 | pkt.add_side_data(NASideData::Palette(pe.changed, pe.pal.clone())); | |
127 | pe.changed = false; | |
128 | break; | |
129 | } | |
130 | } | |
1a151e53 | 131 | self.cur_frame[stream_no as usize] += 1; |
ca41f125 KS |
132 | self.movi_size -= size + 8; |
133 | ||
134 | return Ok(pkt); | |
135 | } | |
136 | } | |
137 | ||
33b5a8f0 KS |
138 | fn seek(&mut self, time: u64, seek_index: &SeekIndex) -> DemuxerResult<()> { |
139 | let ret = seek_index.find_pos(time); | |
140 | if ret.is_none() { | |
141 | return Err(DemuxerError::SeekError); | |
142 | } | |
4a6263cf | 143 | let seek_info = ret.unwrap(); |
33b5a8f0 | 144 | |
4a6263cf KS |
145 | if seek_info.pos < self.movi_pos { return Err(DemuxerError::SeekError); } |
146 | let skip_size = (seek_info.pos - self.movi_pos) as usize; | |
33b5a8f0 KS |
147 | if skip_size > self.movi_size { return Err(DemuxerError::SeekError); } |
148 | self.movi_size = self.movi_orig - skip_size; | |
149 | ||
4a6263cf KS |
150 | self.cur_frame[seek_info.str_id as usize] = seek_info.pts; |
151 | self.src.seek(SeekFrom::Start(seek_info.pos))?; | |
152 | ||
33b5a8f0 | 153 | Ok(()) |
ca41f125 KS |
154 | } |
155 | } | |
156 | ||
157 | impl<'a> AVIDemuxer<'a> { | |
eb71d98f | 158 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
ca41f125 KS |
159 | AVIDemuxer { |
160 | cur_frame: Vec::new(), | |
161 | num_streams: 0, | |
ca41f125 KS |
162 | src: io, |
163 | size: 0, | |
164 | movi_size: 0, | |
33b5a8f0 KS |
165 | movi_pos: 0, |
166 | movi_orig: 0, | |
ca41f125 | 167 | sstate: StreamState::new(), |
e189501e KS |
168 | tb_num: 0, |
169 | tb_den: 0, | |
f39f0623 | 170 | key_offs: Vec::new(), |
956ef3a0 | 171 | pal: Vec::new(), |
ca41f125 KS |
172 | } |
173 | } | |
174 | ||
bcfeae48 | 175 | fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { |
ca41f125 KS |
176 | if csize < 8 { return Err(InvalidData); } |
177 | if depth > 42 { return Err(InvalidData); } | |
178 | ||
179 | let tag = self.src.read_u32be()?; | |
180 | let size = self.src.read_u32le()? as usize; | |
181 | if size > csize { return Err(InvalidData); } | |
c84e0be0 KS |
182 | if RIFFTag::Chunk(tag) == end_tag { |
183 | return Ok((size, true)); | |
ca41f125 | 184 | } |
f149a5b7 KS |
185 | let is_list = is_list_tag(tag); |
186 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; | |
c84e0be0 KS |
187 | if RIFFTag::List(tag, ltag) == end_tag { |
188 | return Ok((size, true)); | |
ca41f125 | 189 | } |
c84e0be0 | 190 | |
c83013a1 KS |
191 | for chunk in CHUNKS.iter() { |
192 | if RIFFTag::Chunk(tag) == chunk.tag { | |
193 | let psize = (chunk.parse)(self, strmgr, size)?; | |
c84e0be0 | 194 | if psize != size { return Err(InvalidData); } |
f6fa6f34 | 195 | if (psize & 1) == 1 { self.src.read_skip(1)?; } |
c84e0be0 | 196 | return Ok((size + 8, false)); |
ca41f125 | 197 | } |
c83013a1 | 198 | if RIFFTag::List(tag, ltag) == chunk.tag { |
c84e0be0 | 199 | let mut rest_size = size - 4; |
c83013a1 | 200 | let psize = (chunk.parse)(self, strmgr, rest_size)?; |
c84e0be0 KS |
201 | if psize > rest_size { return Err(InvalidData); } |
202 | rest_size -= psize; | |
203 | while rest_size > 0 { | |
bcfeae48 | 204 | let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; |
ca41f125 KS |
205 | if psize > rest_size { return Err(InvalidData); } |
206 | rest_size -= psize; | |
c83013a1 KS |
207 | if ((psize & 1) == 1) && (rest_size > 0) { |
208 | rest_size -= 1; | |
f6fa6f34 | 209 | } |
ca41f125 | 210 | } |
c84e0be0 KS |
211 | |
212 | return Ok((size + 8, false)); | |
ca41f125 KS |
213 | } |
214 | } | |
f149a5b7 KS |
215 | if !is_list { |
216 | self.src.read_skip(size)?; | |
217 | } else { | |
218 | if size < 4 { return Err(InvalidData); } | |
219 | self.src.read_skip(size - 4)?; | |
220 | } | |
f6fa6f34 | 221 | if (size & 1) == 1 { self.src.read_skip(1)?; } |
c83013a1 | 222 | Ok((size + 8, false)) |
ca41f125 KS |
223 | } |
224 | ||
4a6263cf | 225 | fn read_header(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> { |
ca41f125 KS |
226 | let riff_tag = self.src.read_u32be()?; |
227 | let size = self.src.read_u32le()? as usize; | |
228 | let avi_tag = self.src.read_u32be()?; | |
23eeced9 KS |
229 | let mut matches = false; |
230 | for rt in RIFF_TAGS.iter() { | |
231 | if rt[0] == riff_tag && rt[1] == avi_tag { | |
232 | matches = true; | |
233 | break; | |
234 | } | |
235 | } | |
236 | if !matches { | |
ca41f125 KS |
237 | return Err(InvalidData); |
238 | } | |
239 | self.size = size; | |
240 | let mut rest_size = size; | |
241 | loop { | |
bcfeae48 | 242 | let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; |
33b5a8f0 KS |
243 | if end { |
244 | self.movi_size = csz - 4; | |
245 | self.movi_orig = self.movi_size; | |
246 | self.movi_pos = self.src.tell(); | |
247 | break; | |
248 | } | |
ca41f125 KS |
249 | rest_size -= csz; |
250 | } | |
9da33f04 KS |
251 | if !seek_idx.skip_index { |
252 | self.src.read_skip(self.movi_size)?; | |
253 | while rest_size > 0 { | |
254 | let ret = self.parse_chunk(strmgr, RIFFTag::Chunk(mktag!(b"idx1")), rest_size,0); | |
255 | if ret.is_err() { break; } | |
256 | let (csz, end) = ret.unwrap(); | |
257 | if end { | |
f39f0623 | 258 | let _res = parse_idx1(&mut self.src, strmgr, seek_idx, csz, self.movi_pos, &mut self.key_offs); |
9da33f04 KS |
259 | break; |
260 | } | |
261 | rest_size -= csz; | |
4a6263cf | 262 | } |
4a6263cf KS |
263 | } |
264 | if self.movi_pos != 0 { | |
265 | self.src.seek(SeekFrom::Start(self.movi_pos))?; | |
266 | } else { | |
267 | return Err(InvalidData); | |
268 | } | |
ca41f125 KS |
269 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { |
270 | return Err(InvalidData); | |
271 | } | |
272 | Ok(()) | |
273 | } | |
274 | ||
275 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { | |
276 | if size == 0 { return Ok(None); } | |
c83013a1 | 277 | let mut edvec: Vec<u8> = vec![0; size]; |
ca41f125 KS |
278 | self.src.read_buf(&mut edvec)?; |
279 | Ok(Some(edvec)) | |
280 | } | |
956ef3a0 KS |
281 | |
282 | fn parse_palette_change(&mut self, stream_no: usize, size: usize) -> DemuxerResult<()> { | |
283 | for pe in self.pal.iter_mut() { | |
284 | if pe.stream_no == stream_no { | |
285 | let start_clr = self.src.read_byte()? as usize; | |
286 | let len = self.src.read_byte()? as usize; | |
287 | let _flags = self.src.read_u16le()?; | |
288 | validate!(start_clr + len <= 256); | |
289 | validate!(len * 4 + 4 == size); | |
290 | let mut newpal = *pe.pal; | |
291 | for i in start_clr..(start_clr + len) { | |
292 | newpal[i * 4] = self.src.read_byte()?; | |
293 | newpal[i * 4 + 1] = self.src.read_byte()?; | |
294 | newpal[i * 4 + 2] = self.src.read_byte()?; | |
93c94df9 KS |
295 | newpal[i * 4 + 3] = 0; |
296 | self.src.read_byte()?; // flags | |
956ef3a0 KS |
297 | } |
298 | pe.pal = Arc::new(newpal); | |
299 | pe.changed = true; | |
300 | return Ok(()); | |
301 | } | |
302 | } | |
303 | self.src.read_skip(size)?; | |
304 | Ok(()) | |
305 | } | |
ca41f125 KS |
306 | } |
307 | ||
23eeced9 KS |
308 | const RIFF_TAGS: &[[u32; 2]] = &[ |
309 | [ mktag!(b"RIFF"), mktag!(b"AVI ") ], | |
310 | [ mktag!(b"RIFF"), mktag!(b"AVIX") ], | |
311 | [ mktag!(b"ON2 "), mktag!(b"ON2f") ], | |
312 | ]; | |
313 | ||
314 | const CHUNKS: [RIFFParser; 7] = [ | |
ca41f125 KS |
315 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, |
316 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, | |
317 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, | |
23eeced9 | 318 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"ON2h")), parse: parse_avih }, |
ca41f125 KS |
319 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, |
320 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, | |
321 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, | |
322 | ]; | |
323 | ||
324 | fn is_list_tag(tag: u32) -> bool { | |
c83013a1 KS |
325 | for chunk in CHUNKS.iter() { |
326 | if let RIFFTag::List(ltag, _) = chunk.tag { | |
ca41f125 KS |
327 | if tag == ltag { |
328 | return true; | |
329 | } | |
330 | } | |
331 | } | |
332 | false | |
333 | } | |
334 | ||
335 | #[allow(unused_variables)] | |
bcfeae48 | 336 | fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
337 | Ok(0) |
338 | } | |
339 | ||
340 | #[allow(unused_variables)] | |
bcfeae48 | 341 | fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
342 | Ok(0) |
343 | } | |
344 | ||
345 | #[allow(unused_variables)] | |
bcfeae48 | 346 | fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
347 | if size < 0x38 { return Err(InvalidData); } |
348 | let tag = dmx.src.read_u32be()?; //stream type | |
349 | let fcc = dmx.src.read_u32be()?; //handler(fourcc) | |
350 | dmx.src.read_u32le()?; //flags | |
351 | dmx.src.read_skip(2)?; //priority | |
352 | dmx.src.read_skip(2)?; //language | |
353 | dmx.src.read_skip(4)?; //initial frames | |
e189501e KS |
354 | dmx.tb_num = dmx.src.read_u32le()?; //scale |
355 | dmx.tb_den = dmx.src.read_u32le()?; //rate | |
ca41f125 KS |
356 | dmx.src.read_skip(4)?; //start |
357 | dmx.src.read_skip(4)?; //length | |
358 | dmx.src.read_skip(4)?; //buf size | |
359 | dmx.src.read_skip(4)?; //quality | |
360 | dmx.src.read_skip(4)?; //sample size | |
361 | let a = dmx.src.read_u16le()?; | |
362 | let b = dmx.src.read_u16le()?; | |
363 | let c = dmx.src.read_u16le()?; | |
364 | let d = dmx.src.read_u16le()?; | |
365 | ||
366 | dmx.src.read_skip(size - 0x38)?; | |
367 | ||
368 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { | |
369 | return Err(InvalidData); | |
370 | } | |
371 | if tag == mktag!(b"vids") { | |
372 | dmx.sstate.strm_type = Some(StreamType::Video); | |
373 | } else if tag == mktag!(b"auds") { | |
374 | dmx.sstate.strm_type = Some(StreamType::Audio); | |
375 | } else { | |
376 | dmx.sstate.strm_type = Some(StreamType::Data); | |
377 | } | |
378 | dmx.sstate.got_strf = false; | |
379 | ||
380 | Ok(size) | |
381 | } | |
382 | ||
bcfeae48 | 383 | fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
c83013a1 | 384 | if dmx.sstate.strm_type.is_none() { return Err(InvalidData); } |
ca41f125 | 385 | match dmx.sstate.strm_type.unwrap() { |
bcfeae48 KS |
386 | StreamType::Video => parse_strf_vids(dmx, strmgr, size), |
387 | StreamType::Audio => parse_strf_auds(dmx, strmgr, size), | |
388 | _ => parse_strf_xxxx(dmx, strmgr, size), | |
ca41f125 KS |
389 | } |
390 | } | |
391 | ||
392 | #[allow(unused_variables)] | |
bcfeae48 | 393 | fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
394 | if size < 40 { return Err(InvalidData); } |
395 | let bi_size = dmx.src.read_u32le()?; | |
396 | if (bi_size as usize) > size { return Err(InvalidData); } | |
397 | let width = dmx.src.read_u32le()?; | |
398 | let height = dmx.src.read_u32le()? as i32; | |
399 | let planes = dmx.src.read_u16le()?; | |
400 | let bitcount = dmx.src.read_u16le()?; | |
ccae5343 KS |
401 | let mut compression: [u8; 4] = [0; 4]; |
402 | dmx.src.read_buf(&mut compression)?; | |
ca41f125 KS |
403 | let img_size = dmx.src.read_u32le()?; |
404 | let xdpi = dmx.src.read_u32le()?; | |
405 | let ydpi = dmx.src.read_u32le()?; | |
406 | let colors = dmx.src.read_u32le()?; | |
956ef3a0 | 407 | validate!(colors <= 256); |
ca41f125 KS |
408 | let imp_colors = dmx.src.read_u32le()?; |
409 | ||
410 | let flip = height < 0; | |
411 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; | |
045d52bd | 412 | let vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, format); |
ca41f125 KS |
413 | let vci = NACodecTypeInfo::Video(vhdr); |
414 | let edata = dmx.read_extradata(size - 40)?; | |
956ef3a0 KS |
415 | if colors > 0 { |
416 | if let Some(ref buf) = edata { | |
417 | let mut pal = [0u8; 1024]; | |
418 | for (dpal, spal) in pal.chunks_mut(4).take(colors as usize).zip(buf.chunks(4)) { | |
93c94df9 | 419 | dpal[0] = spal[2]; |
956ef3a0 | 420 | dpal[1] = spal[1]; |
93c94df9 KS |
421 | dpal[2] = spal[0]; |
422 | dpal[3] = 0; | |
956ef3a0 KS |
423 | } |
424 | let pal = PalInfo { pal: Arc::new(pal), changed: true, stream_no: strmgr.get_num_streams() }; | |
425 | dmx.pal.push(pal); | |
426 | } | |
427 | } | |
ccae5343 KS |
428 | let cname = match register::find_codec_from_avi_fourcc(&compression) { |
429 | None => "unknown", | |
430 | Some(name) => name, | |
431 | }; | |
432 | let vinfo = NACodecInfo::new(cname, vci, edata); | |
c83013a1 KS |
433 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, u32::from(dmx.sstate.strm_no), vinfo, dmx.tb_num, dmx.tb_den)); |
434 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
435 | dmx.sstate.reset(); |
436 | Ok(size) | |
437 | } | |
438 | ||
439 | #[allow(unused_variables)] | |
bcfeae48 | 440 | fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
441 | if size < 16 { return Err(InvalidData); } |
442 | let w_format_tag = dmx.src.read_u16le()?; | |
443 | let channels = dmx.src.read_u16le()?; | |
444 | let samplespersec = dmx.src.read_u32le()?; | |
445 | let avgbytespersec = dmx.src.read_u32le()?; | |
446 | let block_align = dmx.src.read_u16le()?; | |
b33d38e0 | 447 | let bits_per_sample = dmx.src.read_u16le()?; |
ca41f125 KS |
448 | |
449 | let soniton = NASoniton::new(bits_per_sample as u8, SONITON_FLAG_SIGNED); | |
450 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); | |
451 | let edata = dmx.read_extradata(size - 16)?; | |
ccae5343 KS |
452 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { |
453 | None => "unknown", | |
454 | Some(name) => name, | |
455 | }; | |
456 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); | |
c83013a1 KS |
457 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, u32::from(dmx.sstate.strm_no), ainfo, dmx.tb_num, dmx.tb_den)); |
458 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
459 | dmx.sstate.reset(); |
460 | Ok(size) | |
461 | } | |
462 | ||
bcfeae48 | 463 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 | 464 | let edata = dmx.read_extradata(size)?; |
ccae5343 | 465 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); |
c83013a1 KS |
466 | let res = strmgr.add_stream(NAStream::new(StreamType::Data, u32::from(dmx.sstate.strm_no), info, dmx.tb_num, dmx.tb_den)); |
467 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
468 | dmx.sstate.reset(); |
469 | Ok(size) | |
470 | } | |
471 | ||
472 | #[allow(unused_variables)] | |
bcfeae48 | 473 | fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
474 | if size < 0x38 { return Err(InvalidData); } |
475 | let timebase = dmx.src.read_u32le()?; //microsec per frame | |
476 | dmx.src.read_skip(4)?; //max frame size | |
477 | dmx.src.read_skip(4)?; //padding | |
478 | dmx.src.read_u32le()?; //flags | |
479 | let frames = dmx.src.read_u32le()?; //frames | |
480 | dmx.src.read_skip(4)?; //initial frames | |
481 | let streams = dmx.src.read_u32le()?; //streams | |
482 | if streams > 100 { return Err(InvalidData); } | |
483 | dmx.num_streams = streams as u8; | |
484 | ||
485 | dmx.src.read_skip(4)?; //buf size | |
486 | let width = dmx.src.read_u32le()?; //width | |
487 | let height = dmx.src.read_u32le()? as i32; //height | |
488 | dmx.src.read_skip(16)?; //reserved | |
489 | ||
490 | dmx.cur_frame.resize(streams as usize, 0); | |
491 | dmx.src.read_skip(size - 0x38)?; | |
492 | Ok(size) | |
493 | } | |
494 | ||
bcfeae48 KS |
495 | #[allow(unused_variables)] |
496 | fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
ca41f125 KS |
497 | dmx.src.read_skip(size)?; |
498 | Ok(size) | |
499 | } | |
500 | ||
f39f0623 | 501 | fn parse_idx1(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex, size: usize, movi_pos: u64, key_offs: &mut Vec<u64>) -> DemuxerResult<usize> { |
4a6263cf KS |
502 | validate!((size & 15) == 0); |
503 | let mut tag = [0u8; 4]; | |
504 | let num_entries = size >> 4; | |
505 | let mut counter = [0u64; 100]; | |
506 | for _ in 0..num_entries { | |
507 | src.read_buf(&mut tag)?; | |
508 | let flags = src.read_u32le()?; | |
509 | let offset = src.read_u32le()? as u64; | |
510 | let _length = src.read_u32le()?; | |
511 | ||
512 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { | |
513 | return Err(InvalidData); | |
514 | } | |
515 | let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize; | |
516 | ||
517 | if (flags & 0x10) != 0 { | |
518 | if let Some(str) = strmgr.get_stream(stream_no) { | |
519 | if str.get_media_type() == StreamType::Video { | |
520 | let (tb_num, tb_den) = str.get_timebase(); | |
521 | let pts = counter[stream_no]; | |
522 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); | |
523 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: offset + movi_pos - 4 }); | |
524 | } | |
f39f0623 | 525 | key_offs.push(offset); |
4a6263cf KS |
526 | } |
527 | } | |
528 | counter[stream_no] += 1; | |
529 | } | |
f39f0623 | 530 | key_offs.sort_unstable(); |
4a6263cf KS |
531 | Ok(size) |
532 | } | |
533 | ||
eb71d98f KS |
534 | pub struct AVIDemuxerCreator { } |
535 | ||
536 | impl DemuxerCreator for AVIDemuxerCreator { | |
6011e201 | 537 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
eb71d98f KS |
538 | Box::new(AVIDemuxer::new(br)) |
539 | } | |
540 | fn get_name(&self) -> &'static str { "avi" } | |
541 | } | |
542 | ||
ca41f125 KS |
543 | #[cfg(test)] |
544 | mod test { | |
545 | use super::*; | |
546 | use std::fs::File; | |
547 | ||
548 | #[test] | |
549 | fn test_avi_demux() { | |
1678d59a | 550 | let mut file = File::open("assets/Indeo/laser05.avi").unwrap(); |
ca41f125 KS |
551 | let mut fr = FileReader::new_read(&mut file); |
552 | let mut br = ByteReader::new(&mut fr); | |
553 | let mut dmx = AVIDemuxer::new(&mut br); | |
bcfeae48 | 554 | let mut sm = StreamManager::new(); |
caf0f37e KS |
555 | let mut si = SeekIndex::new(); |
556 | dmx.open(&mut sm, &mut si).unwrap(); | |
ca41f125 KS |
557 | |
558 | loop { | |
bcfeae48 | 559 | let pktres = dmx.get_frame(&mut sm); |
ca41f125 | 560 | if let Err(e) = pktres { |
b1be9318 | 561 | if e == DemuxerError::EOF { break; } |
ca41f125 KS |
562 | panic!("error"); |
563 | } | |
564 | let pkt = pktres.unwrap(); | |
565 | println!("Got {}", pkt); | |
566 | } | |
567 | } | |
568 | } |