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Commit | Line | Data |
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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, | |
33b5a8f0 KS |
44 | movi_pos: u64, |
45 | movi_orig: usize, | |
ca41f125 | 46 | sstate: StreamState, |
e189501e KS |
47 | tb_num: u32, |
48 | tb_den: u32, | |
ca41f125 KS |
49 | } |
50 | ||
c84e0be0 | 51 | #[derive(Debug,Clone,Copy,PartialEq)] |
ca41f125 KS |
52 | enum RIFFTag { |
53 | Chunk(u32), | |
54 | List(u32,u32), | |
55 | } | |
56 | ||
57 | struct RIFFParser { | |
58 | tag: RIFFTag, | |
bcfeae48 | 59 | parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>, |
ca41f125 KS |
60 | } |
61 | ||
bcfeae48 | 62 | impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { |
33b5a8f0 | 63 | fn open(&mut self, strmgr: &mut StreamManager, seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
4a6263cf | 64 | self.read_header(strmgr, seek_index)?; |
ca41f125 KS |
65 | Ok(()) |
66 | } | |
67 | ||
bcfeae48 | 68 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
ca41f125 KS |
69 | if self.movi_size == 0 { return Err(EOF); } |
70 | let mut tag: [u8; 4] = [0; 4]; | |
71 | loop { | |
aa7dab8e KS |
72 | if (self.src.tell() & 1) == 1 { |
73 | self.src.read_skip(1)?; | |
74 | self.movi_size -= 1; | |
3ff4cebb | 75 | if self.movi_size == 0 { return Err(EOF); } |
aa7dab8e | 76 | } |
ca41f125 KS |
77 | self.src.read_buf(&mut tag)?; |
78 | let size = self.src.read_u32le()? as usize; | |
79 | if mktag!(tag) == mktag!(b"JUNK") { | |
80 | self.movi_size -= size + 8; | |
81 | self.src.read_skip(size)?; | |
cf00c65a | 82 | if self.movi_size == 0 { return Err(EOF); } |
ca41f125 KS |
83 | continue; |
84 | } | |
70fc42e8 KS |
85 | if mktag!(tag) == mktag!(b"LIST") { |
86 | self.movi_size -= 12; | |
87 | self.src.read_skip(4)?; | |
88 | if self.movi_size == 0 { return Err(EOF); } | |
89 | continue; | |
90 | } | |
6350b1ee KS |
91 | if tag[0] == b'i' && tag[1] == b'x' { |
92 | return Err(EOF); | |
93 | } | |
ca41f125 KS |
94 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
95 | return Err(InvalidData); | |
96 | } | |
97 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); | |
bcfeae48 | 98 | let str = strmgr.get_stream(stream_no as usize); |
c83013a1 | 99 | if str.is_none() { return Err(InvalidData); } |
ca41f125 | 100 | let stream = str.unwrap(); |
741d97d8 KS |
101 | if size == 0 { |
102 | self.movi_size -= 8; | |
103 | if self.movi_size == 0 { return Err(EOF); } | |
104 | continue; | |
105 | } | |
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)?; | |
1a151e53 | 109 | self.cur_frame[stream_no as usize] += 1; |
ca41f125 KS |
110 | self.movi_size -= size + 8; |
111 | ||
112 | return Ok(pkt); | |
113 | } | |
114 | } | |
115 | ||
33b5a8f0 KS |
116 | fn seek(&mut self, time: u64, seek_index: &SeekIndex) -> DemuxerResult<()> { |
117 | let ret = seek_index.find_pos(time); | |
118 | if ret.is_none() { | |
119 | return Err(DemuxerError::SeekError); | |
120 | } | |
4a6263cf | 121 | let seek_info = ret.unwrap(); |
33b5a8f0 | 122 | |
4a6263cf KS |
123 | if seek_info.pos < self.movi_pos { return Err(DemuxerError::SeekError); } |
124 | let skip_size = (seek_info.pos - self.movi_pos) as usize; | |
33b5a8f0 KS |
125 | if skip_size > self.movi_size { return Err(DemuxerError::SeekError); } |
126 | self.movi_size = self.movi_orig - skip_size; | |
127 | ||
4a6263cf KS |
128 | self.cur_frame[seek_info.str_id as usize] = seek_info.pts; |
129 | self.src.seek(SeekFrom::Start(seek_info.pos))?; | |
130 | ||
33b5a8f0 | 131 | Ok(()) |
ca41f125 KS |
132 | } |
133 | } | |
134 | ||
135 | impl<'a> AVIDemuxer<'a> { | |
eb71d98f | 136 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
ca41f125 KS |
137 | AVIDemuxer { |
138 | cur_frame: Vec::new(), | |
139 | num_streams: 0, | |
ca41f125 KS |
140 | src: io, |
141 | size: 0, | |
142 | movi_size: 0, | |
33b5a8f0 KS |
143 | movi_pos: 0, |
144 | movi_orig: 0, | |
ca41f125 | 145 | sstate: StreamState::new(), |
e189501e KS |
146 | tb_num: 0, |
147 | tb_den: 0, | |
ca41f125 KS |
148 | } |
149 | } | |
150 | ||
bcfeae48 | 151 | fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { |
ca41f125 KS |
152 | if csize < 8 { return Err(InvalidData); } |
153 | if depth > 42 { return Err(InvalidData); } | |
154 | ||
155 | let tag = self.src.read_u32be()?; | |
156 | let size = self.src.read_u32le()? as usize; | |
157 | if size > csize { return Err(InvalidData); } | |
c84e0be0 KS |
158 | if RIFFTag::Chunk(tag) == end_tag { |
159 | return Ok((size, true)); | |
ca41f125 | 160 | } |
f149a5b7 KS |
161 | let is_list = is_list_tag(tag); |
162 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; | |
c84e0be0 KS |
163 | if RIFFTag::List(tag, ltag) == end_tag { |
164 | return Ok((size, true)); | |
ca41f125 | 165 | } |
c84e0be0 | 166 | |
c83013a1 KS |
167 | for chunk in CHUNKS.iter() { |
168 | if RIFFTag::Chunk(tag) == chunk.tag { | |
169 | let psize = (chunk.parse)(self, strmgr, size)?; | |
c84e0be0 | 170 | if psize != size { return Err(InvalidData); } |
f6fa6f34 | 171 | if (psize & 1) == 1 { self.src.read_skip(1)?; } |
c84e0be0 | 172 | return Ok((size + 8, false)); |
ca41f125 | 173 | } |
c83013a1 | 174 | if RIFFTag::List(tag, ltag) == chunk.tag { |
c84e0be0 | 175 | let mut rest_size = size - 4; |
c83013a1 | 176 | let psize = (chunk.parse)(self, strmgr, rest_size)?; |
c84e0be0 KS |
177 | if psize > rest_size { return Err(InvalidData); } |
178 | rest_size -= psize; | |
179 | while rest_size > 0 { | |
bcfeae48 | 180 | let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; |
ca41f125 KS |
181 | if psize > rest_size { return Err(InvalidData); } |
182 | rest_size -= psize; | |
c83013a1 KS |
183 | if ((psize & 1) == 1) && (rest_size > 0) { |
184 | rest_size -= 1; | |
f6fa6f34 | 185 | } |
ca41f125 | 186 | } |
c84e0be0 KS |
187 | |
188 | return Ok((size + 8, false)); | |
ca41f125 KS |
189 | } |
190 | } | |
f149a5b7 KS |
191 | if !is_list { |
192 | self.src.read_skip(size)?; | |
193 | } else { | |
194 | if size < 4 { return Err(InvalidData); } | |
195 | self.src.read_skip(size - 4)?; | |
196 | } | |
f6fa6f34 | 197 | if (size & 1) == 1 { self.src.read_skip(1)?; } |
c83013a1 | 198 | Ok((size + 8, false)) |
ca41f125 KS |
199 | } |
200 | ||
4a6263cf | 201 | fn read_header(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> { |
ca41f125 KS |
202 | let riff_tag = self.src.read_u32be()?; |
203 | let size = self.src.read_u32le()? as usize; | |
204 | let avi_tag = self.src.read_u32be()?; | |
23eeced9 KS |
205 | let mut matches = false; |
206 | for rt in RIFF_TAGS.iter() { | |
207 | if rt[0] == riff_tag && rt[1] == avi_tag { | |
208 | matches = true; | |
209 | break; | |
210 | } | |
211 | } | |
212 | if !matches { | |
ca41f125 KS |
213 | return Err(InvalidData); |
214 | } | |
215 | self.size = size; | |
216 | let mut rest_size = size; | |
217 | loop { | |
bcfeae48 | 218 | let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; |
33b5a8f0 KS |
219 | if end { |
220 | self.movi_size = csz - 4; | |
221 | self.movi_orig = self.movi_size; | |
222 | self.movi_pos = self.src.tell(); | |
223 | break; | |
224 | } | |
ca41f125 KS |
225 | rest_size -= csz; |
226 | } | |
9da33f04 KS |
227 | if !seek_idx.skip_index { |
228 | self.src.read_skip(self.movi_size)?; | |
229 | while rest_size > 0 { | |
230 | let ret = self.parse_chunk(strmgr, RIFFTag::Chunk(mktag!(b"idx1")), rest_size,0); | |
231 | if ret.is_err() { break; } | |
232 | let (csz, end) = ret.unwrap(); | |
233 | if end { | |
234 | let _res = parse_idx1(&mut self.src, strmgr, seek_idx, csz, self.movi_pos); | |
235 | break; | |
236 | } | |
237 | rest_size -= csz; | |
4a6263cf | 238 | } |
4a6263cf KS |
239 | } |
240 | if self.movi_pos != 0 { | |
241 | self.src.seek(SeekFrom::Start(self.movi_pos))?; | |
242 | } else { | |
243 | return Err(InvalidData); | |
244 | } | |
ca41f125 KS |
245 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { |
246 | return Err(InvalidData); | |
247 | } | |
248 | Ok(()) | |
249 | } | |
250 | ||
251 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { | |
252 | if size == 0 { return Ok(None); } | |
c83013a1 | 253 | let mut edvec: Vec<u8> = vec![0; size]; |
ca41f125 KS |
254 | self.src.read_buf(&mut edvec)?; |
255 | Ok(Some(edvec)) | |
256 | } | |
257 | } | |
258 | ||
23eeced9 KS |
259 | const RIFF_TAGS: &[[u32; 2]] = &[ |
260 | [ mktag!(b"RIFF"), mktag!(b"AVI ") ], | |
261 | [ mktag!(b"RIFF"), mktag!(b"AVIX") ], | |
262 | [ mktag!(b"ON2 "), mktag!(b"ON2f") ], | |
263 | ]; | |
264 | ||
265 | const CHUNKS: [RIFFParser; 7] = [ | |
ca41f125 KS |
266 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, |
267 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, | |
268 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, | |
23eeced9 | 269 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"ON2h")), parse: parse_avih }, |
ca41f125 KS |
270 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, |
271 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, | |
272 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, | |
273 | ]; | |
274 | ||
275 | fn is_list_tag(tag: u32) -> bool { | |
c83013a1 KS |
276 | for chunk in CHUNKS.iter() { |
277 | if let RIFFTag::List(ltag, _) = chunk.tag { | |
ca41f125 KS |
278 | if tag == ltag { |
279 | return true; | |
280 | } | |
281 | } | |
282 | } | |
283 | false | |
284 | } | |
285 | ||
286 | #[allow(unused_variables)] | |
bcfeae48 | 287 | fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
288 | Ok(0) |
289 | } | |
290 | ||
291 | #[allow(unused_variables)] | |
bcfeae48 | 292 | fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
293 | Ok(0) |
294 | } | |
295 | ||
296 | #[allow(unused_variables)] | |
bcfeae48 | 297 | fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
298 | if size < 0x38 { return Err(InvalidData); } |
299 | let tag = dmx.src.read_u32be()?; //stream type | |
300 | let fcc = dmx.src.read_u32be()?; //handler(fourcc) | |
301 | dmx.src.read_u32le()?; //flags | |
302 | dmx.src.read_skip(2)?; //priority | |
303 | dmx.src.read_skip(2)?; //language | |
304 | dmx.src.read_skip(4)?; //initial frames | |
e189501e KS |
305 | dmx.tb_num = dmx.src.read_u32le()?; //scale |
306 | dmx.tb_den = dmx.src.read_u32le()?; //rate | |
ca41f125 KS |
307 | dmx.src.read_skip(4)?; //start |
308 | dmx.src.read_skip(4)?; //length | |
309 | dmx.src.read_skip(4)?; //buf size | |
310 | dmx.src.read_skip(4)?; //quality | |
311 | dmx.src.read_skip(4)?; //sample size | |
312 | let a = dmx.src.read_u16le()?; | |
313 | let b = dmx.src.read_u16le()?; | |
314 | let c = dmx.src.read_u16le()?; | |
315 | let d = dmx.src.read_u16le()?; | |
316 | ||
317 | dmx.src.read_skip(size - 0x38)?; | |
318 | ||
319 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { | |
320 | return Err(InvalidData); | |
321 | } | |
322 | if tag == mktag!(b"vids") { | |
323 | dmx.sstate.strm_type = Some(StreamType::Video); | |
324 | } else if tag == mktag!(b"auds") { | |
325 | dmx.sstate.strm_type = Some(StreamType::Audio); | |
326 | } else { | |
327 | dmx.sstate.strm_type = Some(StreamType::Data); | |
328 | } | |
329 | dmx.sstate.got_strf = false; | |
330 | ||
331 | Ok(size) | |
332 | } | |
333 | ||
bcfeae48 | 334 | fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
c83013a1 | 335 | if dmx.sstate.strm_type.is_none() { return Err(InvalidData); } |
ca41f125 | 336 | match dmx.sstate.strm_type.unwrap() { |
bcfeae48 KS |
337 | StreamType::Video => parse_strf_vids(dmx, strmgr, size), |
338 | StreamType::Audio => parse_strf_auds(dmx, strmgr, size), | |
339 | _ => parse_strf_xxxx(dmx, strmgr, size), | |
ca41f125 KS |
340 | } |
341 | } | |
342 | ||
343 | #[allow(unused_variables)] | |
bcfeae48 | 344 | fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
345 | if size < 40 { return Err(InvalidData); } |
346 | let bi_size = dmx.src.read_u32le()?; | |
347 | if (bi_size as usize) > size { return Err(InvalidData); } | |
348 | let width = dmx.src.read_u32le()?; | |
349 | let height = dmx.src.read_u32le()? as i32; | |
350 | let planes = dmx.src.read_u16le()?; | |
351 | let bitcount = dmx.src.read_u16le()?; | |
ccae5343 KS |
352 | let mut compression: [u8; 4] = [0; 4]; |
353 | dmx.src.read_buf(&mut compression)?; | |
ca41f125 KS |
354 | let img_size = dmx.src.read_u32le()?; |
355 | let xdpi = dmx.src.read_u32le()?; | |
356 | let ydpi = dmx.src.read_u32le()?; | |
357 | let colors = dmx.src.read_u32le()?; | |
358 | let imp_colors = dmx.src.read_u32le()?; | |
359 | ||
360 | let flip = height < 0; | |
361 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; | |
66116504 | 362 | let vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, PAL8_FORMAT); |
ca41f125 KS |
363 | let vci = NACodecTypeInfo::Video(vhdr); |
364 | let edata = dmx.read_extradata(size - 40)?; | |
ccae5343 KS |
365 | let cname = match register::find_codec_from_avi_fourcc(&compression) { |
366 | None => "unknown", | |
367 | Some(name) => name, | |
368 | }; | |
369 | let vinfo = NACodecInfo::new(cname, vci, edata); | |
c83013a1 KS |
370 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, u32::from(dmx.sstate.strm_no), vinfo, dmx.tb_num, dmx.tb_den)); |
371 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
372 | dmx.sstate.reset(); |
373 | Ok(size) | |
374 | } | |
375 | ||
376 | #[allow(unused_variables)] | |
bcfeae48 | 377 | fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
378 | if size < 16 { return Err(InvalidData); } |
379 | let w_format_tag = dmx.src.read_u16le()?; | |
380 | let channels = dmx.src.read_u16le()?; | |
381 | let samplespersec = dmx.src.read_u32le()?; | |
382 | let avgbytespersec = dmx.src.read_u32le()?; | |
383 | let block_align = dmx.src.read_u16le()?; | |
b33d38e0 | 384 | let bits_per_sample = dmx.src.read_u16le()?; |
ca41f125 KS |
385 | |
386 | let soniton = NASoniton::new(bits_per_sample as u8, SONITON_FLAG_SIGNED); | |
387 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); | |
388 | let edata = dmx.read_extradata(size - 16)?; | |
ccae5343 KS |
389 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { |
390 | None => "unknown", | |
391 | Some(name) => name, | |
392 | }; | |
393 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); | |
c83013a1 KS |
394 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, u32::from(dmx.sstate.strm_no), ainfo, dmx.tb_num, dmx.tb_den)); |
395 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
396 | dmx.sstate.reset(); |
397 | Ok(size) | |
398 | } | |
399 | ||
bcfeae48 | 400 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 | 401 | let edata = dmx.read_extradata(size)?; |
ccae5343 | 402 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); |
c83013a1 KS |
403 | let res = strmgr.add_stream(NAStream::new(StreamType::Data, u32::from(dmx.sstate.strm_no), info, dmx.tb_num, dmx.tb_den)); |
404 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
405 | dmx.sstate.reset(); |
406 | Ok(size) | |
407 | } | |
408 | ||
409 | #[allow(unused_variables)] | |
bcfeae48 | 410 | fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
411 | if size < 0x38 { return Err(InvalidData); } |
412 | let timebase = dmx.src.read_u32le()?; //microsec per frame | |
413 | dmx.src.read_skip(4)?; //max frame size | |
414 | dmx.src.read_skip(4)?; //padding | |
415 | dmx.src.read_u32le()?; //flags | |
416 | let frames = dmx.src.read_u32le()?; //frames | |
417 | dmx.src.read_skip(4)?; //initial frames | |
418 | let streams = dmx.src.read_u32le()?; //streams | |
419 | if streams > 100 { return Err(InvalidData); } | |
420 | dmx.num_streams = streams as u8; | |
421 | ||
422 | dmx.src.read_skip(4)?; //buf size | |
423 | let width = dmx.src.read_u32le()?; //width | |
424 | let height = dmx.src.read_u32le()? as i32; //height | |
425 | dmx.src.read_skip(16)?; //reserved | |
426 | ||
427 | dmx.cur_frame.resize(streams as usize, 0); | |
428 | dmx.src.read_skip(size - 0x38)?; | |
429 | Ok(size) | |
430 | } | |
431 | ||
bcfeae48 KS |
432 | #[allow(unused_variables)] |
433 | fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
ca41f125 KS |
434 | dmx.src.read_skip(size)?; |
435 | Ok(size) | |
436 | } | |
437 | ||
4a6263cf KS |
438 | fn parse_idx1(src: &mut ByteReader, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex, size: usize, movi_pos: u64) -> DemuxerResult<usize> { |
439 | validate!((size & 15) == 0); | |
440 | let mut tag = [0u8; 4]; | |
441 | let num_entries = size >> 4; | |
442 | let mut counter = [0u64; 100]; | |
443 | for _ in 0..num_entries { | |
444 | src.read_buf(&mut tag)?; | |
445 | let flags = src.read_u32le()?; | |
446 | let offset = src.read_u32le()? as u64; | |
447 | let _length = src.read_u32le()?; | |
448 | ||
449 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { | |
450 | return Err(InvalidData); | |
451 | } | |
452 | let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize; | |
453 | ||
454 | if (flags & 0x10) != 0 { | |
455 | if let Some(str) = strmgr.get_stream(stream_no) { | |
456 | if str.get_media_type() == StreamType::Video { | |
457 | let (tb_num, tb_den) = str.get_timebase(); | |
458 | let pts = counter[stream_no]; | |
459 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); | |
460 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: offset + movi_pos - 4 }); | |
461 | } | |
462 | } | |
463 | } | |
464 | counter[stream_no] += 1; | |
465 | } | |
466 | Ok(size) | |
467 | } | |
468 | ||
eb71d98f KS |
469 | pub struct AVIDemuxerCreator { } |
470 | ||
471 | impl DemuxerCreator for AVIDemuxerCreator { | |
6011e201 | 472 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
eb71d98f KS |
473 | Box::new(AVIDemuxer::new(br)) |
474 | } | |
475 | fn get_name(&self) -> &'static str { "avi" } | |
476 | } | |
477 | ||
ca41f125 KS |
478 | #[cfg(test)] |
479 | mod test { | |
480 | use super::*; | |
481 | use std::fs::File; | |
482 | ||
483 | #[test] | |
484 | fn test_avi_demux() { | |
1678d59a | 485 | let mut file = File::open("assets/Indeo/laser05.avi").unwrap(); |
ca41f125 KS |
486 | let mut fr = FileReader::new_read(&mut file); |
487 | let mut br = ByteReader::new(&mut fr); | |
488 | let mut dmx = AVIDemuxer::new(&mut br); | |
bcfeae48 | 489 | let mut sm = StreamManager::new(); |
caf0f37e KS |
490 | let mut si = SeekIndex::new(); |
491 | dmx.open(&mut sm, &mut si).unwrap(); | |
ca41f125 KS |
492 | |
493 | loop { | |
bcfeae48 | 494 | let pktres = dmx.get_frame(&mut sm); |
ca41f125 | 495 | if let Err(e) = pktres { |
b1be9318 | 496 | if e == DemuxerError::EOF { break; } |
ca41f125 KS |
497 | panic!("error"); |
498 | } | |
499 | let pkt = pktres.unwrap(); | |
500 | println!("Got {}", pkt); | |
501 | } | |
502 | } | |
503 | } |