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 | ||
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, | |
f39f0623 | 49 | key_offs: Vec<u64>, |
ca41f125 KS |
50 | } |
51 | ||
c84e0be0 | 52 | #[derive(Debug,Clone,Copy,PartialEq)] |
ca41f125 KS |
53 | enum RIFFTag { |
54 | Chunk(u32), | |
55 | List(u32,u32), | |
56 | } | |
57 | ||
58 | struct RIFFParser { | |
59 | tag: RIFFTag, | |
bcfeae48 | 60 | parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>, |
ca41f125 KS |
61 | } |
62 | ||
bcfeae48 | 63 | impl<'a> DemuxCore<'a> for AVIDemuxer<'a> { |
33b5a8f0 | 64 | fn open(&mut self, strmgr: &mut StreamManager, seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
4a6263cf | 65 | self.read_header(strmgr, seek_index)?; |
ca41f125 KS |
66 | Ok(()) |
67 | } | |
68 | ||
bcfeae48 | 69 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
ca41f125 KS |
70 | if self.movi_size == 0 { return Err(EOF); } |
71 | let mut tag: [u8; 4] = [0; 4]; | |
72 | loop { | |
aa7dab8e KS |
73 | if (self.src.tell() & 1) == 1 { |
74 | self.src.read_skip(1)?; | |
75 | self.movi_size -= 1; | |
3ff4cebb | 76 | if self.movi_size == 0 { return Err(EOF); } |
aa7dab8e | 77 | } |
f39f0623 | 78 | let is_keyframe = self.key_offs.binary_search(&self.src.tell()).is_ok(); |
ca41f125 KS |
79 | self.src.read_buf(&mut tag)?; |
80 | let size = self.src.read_u32le()? as usize; | |
81 | if mktag!(tag) == mktag!(b"JUNK") { | |
82 | self.movi_size -= size + 8; | |
83 | self.src.read_skip(size)?; | |
cf00c65a | 84 | if self.movi_size == 0 { return Err(EOF); } |
ca41f125 KS |
85 | continue; |
86 | } | |
70fc42e8 KS |
87 | if mktag!(tag) == mktag!(b"LIST") { |
88 | self.movi_size -= 12; | |
89 | self.src.read_skip(4)?; | |
90 | if self.movi_size == 0 { return Err(EOF); } | |
91 | continue; | |
92 | } | |
6350b1ee KS |
93 | if tag[0] == b'i' && tag[1] == b'x' { |
94 | return Err(EOF); | |
95 | } | |
ca41f125 KS |
96 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { |
97 | return Err(InvalidData); | |
98 | } | |
99 | let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0'); | |
bcfeae48 | 100 | let str = strmgr.get_stream(stream_no as usize); |
c83013a1 | 101 | if str.is_none() { return Err(InvalidData); } |
ca41f125 | 102 | let stream = str.unwrap(); |
741d97d8 KS |
103 | if size == 0 { |
104 | self.movi_size -= 8; | |
105 | if self.movi_size == 0 { return Err(EOF); } | |
106 | continue; | |
107 | } | |
e189501e KS |
108 | let (tb_num, tb_den) = stream.get_timebase(); |
109 | let ts = NATimeInfo::new(Some(self.cur_frame[stream_no as usize]), None, None, tb_num, tb_den); | |
f39f0623 | 110 | let pkt = self.src.read_packet(stream, ts, is_keyframe, size)?; |
1a151e53 | 111 | self.cur_frame[stream_no as usize] += 1; |
ca41f125 KS |
112 | self.movi_size -= size + 8; |
113 | ||
114 | return Ok(pkt); | |
115 | } | |
116 | } | |
117 | ||
33b5a8f0 KS |
118 | fn seek(&mut self, time: u64, seek_index: &SeekIndex) -> DemuxerResult<()> { |
119 | let ret = seek_index.find_pos(time); | |
120 | if ret.is_none() { | |
121 | return Err(DemuxerError::SeekError); | |
122 | } | |
4a6263cf | 123 | let seek_info = ret.unwrap(); |
33b5a8f0 | 124 | |
4a6263cf KS |
125 | if seek_info.pos < self.movi_pos { return Err(DemuxerError::SeekError); } |
126 | let skip_size = (seek_info.pos - self.movi_pos) as usize; | |
33b5a8f0 KS |
127 | if skip_size > self.movi_size { return Err(DemuxerError::SeekError); } |
128 | self.movi_size = self.movi_orig - skip_size; | |
129 | ||
4a6263cf KS |
130 | self.cur_frame[seek_info.str_id as usize] = seek_info.pts; |
131 | self.src.seek(SeekFrom::Start(seek_info.pos))?; | |
132 | ||
33b5a8f0 | 133 | Ok(()) |
ca41f125 KS |
134 | } |
135 | } | |
136 | ||
137 | impl<'a> AVIDemuxer<'a> { | |
eb71d98f | 138 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
ca41f125 KS |
139 | AVIDemuxer { |
140 | cur_frame: Vec::new(), | |
141 | num_streams: 0, | |
ca41f125 KS |
142 | src: io, |
143 | size: 0, | |
144 | movi_size: 0, | |
33b5a8f0 KS |
145 | movi_pos: 0, |
146 | movi_orig: 0, | |
ca41f125 | 147 | sstate: StreamState::new(), |
e189501e KS |
148 | tb_num: 0, |
149 | tb_den: 0, | |
f39f0623 | 150 | key_offs: Vec::new(), |
ca41f125 KS |
151 | } |
152 | } | |
153 | ||
bcfeae48 | 154 | fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> { |
ca41f125 KS |
155 | if csize < 8 { return Err(InvalidData); } |
156 | if depth > 42 { return Err(InvalidData); } | |
157 | ||
158 | let tag = self.src.read_u32be()?; | |
159 | let size = self.src.read_u32le()? as usize; | |
160 | if size > csize { return Err(InvalidData); } | |
c84e0be0 KS |
161 | if RIFFTag::Chunk(tag) == end_tag { |
162 | return Ok((size, true)); | |
ca41f125 | 163 | } |
f149a5b7 KS |
164 | let is_list = is_list_tag(tag); |
165 | let ltag = if is_list { self.src.read_u32be()? } else { 0 }; | |
c84e0be0 KS |
166 | if RIFFTag::List(tag, ltag) == end_tag { |
167 | return Ok((size, true)); | |
ca41f125 | 168 | } |
c84e0be0 | 169 | |
c83013a1 KS |
170 | for chunk in CHUNKS.iter() { |
171 | if RIFFTag::Chunk(tag) == chunk.tag { | |
172 | let psize = (chunk.parse)(self, strmgr, size)?; | |
c84e0be0 | 173 | if psize != size { return Err(InvalidData); } |
f6fa6f34 | 174 | if (psize & 1) == 1 { self.src.read_skip(1)?; } |
c84e0be0 | 175 | return Ok((size + 8, false)); |
ca41f125 | 176 | } |
c83013a1 | 177 | if RIFFTag::List(tag, ltag) == chunk.tag { |
c84e0be0 | 178 | let mut rest_size = size - 4; |
c83013a1 | 179 | let psize = (chunk.parse)(self, strmgr, rest_size)?; |
c84e0be0 KS |
180 | if psize > rest_size { return Err(InvalidData); } |
181 | rest_size -= psize; | |
182 | while rest_size > 0 { | |
bcfeae48 | 183 | let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?; |
ca41f125 KS |
184 | if psize > rest_size { return Err(InvalidData); } |
185 | rest_size -= psize; | |
c83013a1 KS |
186 | if ((psize & 1) == 1) && (rest_size > 0) { |
187 | rest_size -= 1; | |
f6fa6f34 | 188 | } |
ca41f125 | 189 | } |
c84e0be0 KS |
190 | |
191 | return Ok((size + 8, false)); | |
ca41f125 KS |
192 | } |
193 | } | |
f149a5b7 KS |
194 | if !is_list { |
195 | self.src.read_skip(size)?; | |
196 | } else { | |
197 | if size < 4 { return Err(InvalidData); } | |
198 | self.src.read_skip(size - 4)?; | |
199 | } | |
f6fa6f34 | 200 | if (size & 1) == 1 { self.src.read_skip(1)?; } |
c83013a1 | 201 | Ok((size + 8, false)) |
ca41f125 KS |
202 | } |
203 | ||
4a6263cf | 204 | fn read_header(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> { |
ca41f125 KS |
205 | let riff_tag = self.src.read_u32be()?; |
206 | let size = self.src.read_u32le()? as usize; | |
207 | let avi_tag = self.src.read_u32be()?; | |
23eeced9 KS |
208 | let mut matches = false; |
209 | for rt in RIFF_TAGS.iter() { | |
210 | if rt[0] == riff_tag && rt[1] == avi_tag { | |
211 | matches = true; | |
212 | break; | |
213 | } | |
214 | } | |
215 | if !matches { | |
ca41f125 KS |
216 | return Err(InvalidData); |
217 | } | |
218 | self.size = size; | |
219 | let mut rest_size = size; | |
220 | loop { | |
bcfeae48 | 221 | let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?; |
33b5a8f0 KS |
222 | if end { |
223 | self.movi_size = csz - 4; | |
224 | self.movi_orig = self.movi_size; | |
225 | self.movi_pos = self.src.tell(); | |
226 | break; | |
227 | } | |
ca41f125 KS |
228 | rest_size -= csz; |
229 | } | |
9da33f04 KS |
230 | if !seek_idx.skip_index { |
231 | self.src.read_skip(self.movi_size)?; | |
232 | while rest_size > 0 { | |
233 | let ret = self.parse_chunk(strmgr, RIFFTag::Chunk(mktag!(b"idx1")), rest_size,0); | |
234 | if ret.is_err() { break; } | |
235 | let (csz, end) = ret.unwrap(); | |
236 | if end { | |
f39f0623 | 237 | let _res = parse_idx1(&mut self.src, strmgr, seek_idx, csz, self.movi_pos, &mut self.key_offs); |
9da33f04 KS |
238 | break; |
239 | } | |
240 | rest_size -= csz; | |
4a6263cf | 241 | } |
4a6263cf KS |
242 | } |
243 | if self.movi_pos != 0 { | |
244 | self.src.seek(SeekFrom::Start(self.movi_pos))?; | |
245 | } else { | |
246 | return Err(InvalidData); | |
247 | } | |
ca41f125 KS |
248 | if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams { |
249 | return Err(InvalidData); | |
250 | } | |
251 | Ok(()) | |
252 | } | |
253 | ||
254 | fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> { | |
255 | if size == 0 { return Ok(None); } | |
c83013a1 | 256 | let mut edvec: Vec<u8> = vec![0; size]; |
ca41f125 KS |
257 | self.src.read_buf(&mut edvec)?; |
258 | Ok(Some(edvec)) | |
259 | } | |
260 | } | |
261 | ||
23eeced9 KS |
262 | const RIFF_TAGS: &[[u32; 2]] = &[ |
263 | [ mktag!(b"RIFF"), mktag!(b"AVI ") ], | |
264 | [ mktag!(b"RIFF"), mktag!(b"AVIX") ], | |
265 | [ mktag!(b"ON2 "), mktag!(b"ON2f") ], | |
266 | ]; | |
267 | ||
268 | const CHUNKS: [RIFFParser; 7] = [ | |
ca41f125 KS |
269 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl }, |
270 | RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl }, | |
271 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih }, | |
23eeced9 | 272 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"ON2h")), parse: parse_avih }, |
ca41f125 KS |
273 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf }, |
274 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh }, | |
275 | RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk }, | |
276 | ]; | |
277 | ||
278 | fn is_list_tag(tag: u32) -> bool { | |
c83013a1 KS |
279 | for chunk in CHUNKS.iter() { |
280 | if let RIFFTag::List(ltag, _) = chunk.tag { | |
ca41f125 KS |
281 | if tag == ltag { |
282 | return true; | |
283 | } | |
284 | } | |
285 | } | |
286 | false | |
287 | } | |
288 | ||
289 | #[allow(unused_variables)] | |
bcfeae48 | 290 | fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
291 | Ok(0) |
292 | } | |
293 | ||
294 | #[allow(unused_variables)] | |
bcfeae48 | 295 | fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
296 | Ok(0) |
297 | } | |
298 | ||
299 | #[allow(unused_variables)] | |
bcfeae48 | 300 | fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
301 | if size < 0x38 { return Err(InvalidData); } |
302 | let tag = dmx.src.read_u32be()?; //stream type | |
303 | let fcc = dmx.src.read_u32be()?; //handler(fourcc) | |
304 | dmx.src.read_u32le()?; //flags | |
305 | dmx.src.read_skip(2)?; //priority | |
306 | dmx.src.read_skip(2)?; //language | |
307 | dmx.src.read_skip(4)?; //initial frames | |
e189501e KS |
308 | dmx.tb_num = dmx.src.read_u32le()?; //scale |
309 | dmx.tb_den = dmx.src.read_u32le()?; //rate | |
ca41f125 KS |
310 | dmx.src.read_skip(4)?; //start |
311 | dmx.src.read_skip(4)?; //length | |
312 | dmx.src.read_skip(4)?; //buf size | |
313 | dmx.src.read_skip(4)?; //quality | |
314 | dmx.src.read_skip(4)?; //sample size | |
315 | let a = dmx.src.read_u16le()?; | |
316 | let b = dmx.src.read_u16le()?; | |
317 | let c = dmx.src.read_u16le()?; | |
318 | let d = dmx.src.read_u16le()?; | |
319 | ||
320 | dmx.src.read_skip(size - 0x38)?; | |
321 | ||
322 | if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams { | |
323 | return Err(InvalidData); | |
324 | } | |
325 | if tag == mktag!(b"vids") { | |
326 | dmx.sstate.strm_type = Some(StreamType::Video); | |
327 | } else if tag == mktag!(b"auds") { | |
328 | dmx.sstate.strm_type = Some(StreamType::Audio); | |
329 | } else { | |
330 | dmx.sstate.strm_type = Some(StreamType::Data); | |
331 | } | |
332 | dmx.sstate.got_strf = false; | |
333 | ||
334 | Ok(size) | |
335 | } | |
336 | ||
bcfeae48 | 337 | fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
c83013a1 | 338 | if dmx.sstate.strm_type.is_none() { return Err(InvalidData); } |
ca41f125 | 339 | match dmx.sstate.strm_type.unwrap() { |
bcfeae48 KS |
340 | StreamType::Video => parse_strf_vids(dmx, strmgr, size), |
341 | StreamType::Audio => parse_strf_auds(dmx, strmgr, size), | |
342 | _ => parse_strf_xxxx(dmx, strmgr, size), | |
ca41f125 KS |
343 | } |
344 | } | |
345 | ||
346 | #[allow(unused_variables)] | |
bcfeae48 | 347 | fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
348 | if size < 40 { return Err(InvalidData); } |
349 | let bi_size = dmx.src.read_u32le()?; | |
350 | if (bi_size as usize) > size { return Err(InvalidData); } | |
351 | let width = dmx.src.read_u32le()?; | |
352 | let height = dmx.src.read_u32le()? as i32; | |
353 | let planes = dmx.src.read_u16le()?; | |
354 | let bitcount = dmx.src.read_u16le()?; | |
ccae5343 KS |
355 | let mut compression: [u8; 4] = [0; 4]; |
356 | dmx.src.read_buf(&mut compression)?; | |
ca41f125 KS |
357 | let img_size = dmx.src.read_u32le()?; |
358 | let xdpi = dmx.src.read_u32le()?; | |
359 | let ydpi = dmx.src.read_u32le()?; | |
360 | let colors = dmx.src.read_u32le()?; | |
361 | let imp_colors = dmx.src.read_u32le()?; | |
362 | ||
363 | let flip = height < 0; | |
364 | let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT }; | |
66116504 | 365 | let vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, PAL8_FORMAT); |
ca41f125 KS |
366 | let vci = NACodecTypeInfo::Video(vhdr); |
367 | let edata = dmx.read_extradata(size - 40)?; | |
ccae5343 KS |
368 | let cname = match register::find_codec_from_avi_fourcc(&compression) { |
369 | None => "unknown", | |
370 | Some(name) => name, | |
371 | }; | |
372 | let vinfo = NACodecInfo::new(cname, vci, edata); | |
c83013a1 KS |
373 | let res = strmgr.add_stream(NAStream::new(StreamType::Video, u32::from(dmx.sstate.strm_no), vinfo, dmx.tb_num, dmx.tb_den)); |
374 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
375 | dmx.sstate.reset(); |
376 | Ok(size) | |
377 | } | |
378 | ||
379 | #[allow(unused_variables)] | |
bcfeae48 | 380 | fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
381 | if size < 16 { return Err(InvalidData); } |
382 | let w_format_tag = dmx.src.read_u16le()?; | |
383 | let channels = dmx.src.read_u16le()?; | |
384 | let samplespersec = dmx.src.read_u32le()?; | |
385 | let avgbytespersec = dmx.src.read_u32le()?; | |
386 | let block_align = dmx.src.read_u16le()?; | |
b33d38e0 | 387 | let bits_per_sample = dmx.src.read_u16le()?; |
ca41f125 KS |
388 | |
389 | let soniton = NASoniton::new(bits_per_sample as u8, SONITON_FLAG_SIGNED); | |
390 | let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize); | |
391 | let edata = dmx.read_extradata(size - 16)?; | |
ccae5343 KS |
392 | let cname = match register::find_codec_from_wav_twocc(w_format_tag) { |
393 | None => "unknown", | |
394 | Some(name) => name, | |
395 | }; | |
396 | let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata); | |
c83013a1 KS |
397 | let res = strmgr.add_stream(NAStream::new(StreamType::Audio, u32::from(dmx.sstate.strm_no), ainfo, dmx.tb_num, dmx.tb_den)); |
398 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
399 | dmx.sstate.reset(); |
400 | Ok(size) | |
401 | } | |
402 | ||
bcfeae48 | 403 | fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 | 404 | let edata = dmx.read_extradata(size)?; |
ccae5343 | 405 | let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata); |
c83013a1 KS |
406 | let res = strmgr.add_stream(NAStream::new(StreamType::Data, u32::from(dmx.sstate.strm_no), info, dmx.tb_num, dmx.tb_den)); |
407 | if res.is_none() { return Err(MemoryError); } | |
ca41f125 KS |
408 | dmx.sstate.reset(); |
409 | Ok(size) | |
410 | } | |
411 | ||
412 | #[allow(unused_variables)] | |
bcfeae48 | 413 | fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { |
ca41f125 KS |
414 | if size < 0x38 { return Err(InvalidData); } |
415 | let timebase = dmx.src.read_u32le()?; //microsec per frame | |
416 | dmx.src.read_skip(4)?; //max frame size | |
417 | dmx.src.read_skip(4)?; //padding | |
418 | dmx.src.read_u32le()?; //flags | |
419 | let frames = dmx.src.read_u32le()?; //frames | |
420 | dmx.src.read_skip(4)?; //initial frames | |
421 | let streams = dmx.src.read_u32le()?; //streams | |
422 | if streams > 100 { return Err(InvalidData); } | |
423 | dmx.num_streams = streams as u8; | |
424 | ||
425 | dmx.src.read_skip(4)?; //buf size | |
426 | let width = dmx.src.read_u32le()?; //width | |
427 | let height = dmx.src.read_u32le()? as i32; //height | |
428 | dmx.src.read_skip(16)?; //reserved | |
429 | ||
430 | dmx.cur_frame.resize(streams as usize, 0); | |
431 | dmx.src.read_skip(size - 0x38)?; | |
432 | Ok(size) | |
433 | } | |
434 | ||
bcfeae48 KS |
435 | #[allow(unused_variables)] |
436 | fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> { | |
ca41f125 KS |
437 | dmx.src.read_skip(size)?; |
438 | Ok(size) | |
439 | } | |
440 | ||
f39f0623 | 441 | 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 |
442 | validate!((size & 15) == 0); |
443 | let mut tag = [0u8; 4]; | |
444 | let num_entries = size >> 4; | |
445 | let mut counter = [0u64; 100]; | |
446 | for _ in 0..num_entries { | |
447 | src.read_buf(&mut tag)?; | |
448 | let flags = src.read_u32le()?; | |
449 | let offset = src.read_u32le()? as u64; | |
450 | let _length = src.read_u32le()?; | |
451 | ||
452 | if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' { | |
453 | return Err(InvalidData); | |
454 | } | |
455 | let stream_no = ((tag[0] - b'0') * 10 + (tag[1] - b'0')) as usize; | |
456 | ||
457 | if (flags & 0x10) != 0 { | |
458 | if let Some(str) = strmgr.get_stream(stream_no) { | |
459 | if str.get_media_type() == StreamType::Video { | |
460 | let (tb_num, tb_den) = str.get_timebase(); | |
461 | let pts = counter[stream_no]; | |
462 | let time = NATimeInfo::ts_to_time(pts, 1000, tb_num, tb_den); | |
463 | seek_idx.add_entry(stream_no as u32, SeekEntry { time, pts, pos: offset + movi_pos - 4 }); | |
464 | } | |
f39f0623 | 465 | key_offs.push(offset); |
4a6263cf KS |
466 | } |
467 | } | |
468 | counter[stream_no] += 1; | |
469 | } | |
f39f0623 | 470 | key_offs.sort_unstable(); |
4a6263cf KS |
471 | Ok(size) |
472 | } | |
473 | ||
eb71d98f KS |
474 | pub struct AVIDemuxerCreator { } |
475 | ||
476 | impl DemuxerCreator for AVIDemuxerCreator { | |
6011e201 | 477 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
eb71d98f KS |
478 | Box::new(AVIDemuxer::new(br)) |
479 | } | |
480 | fn get_name(&self) -> &'static str { "avi" } | |
481 | } | |
482 | ||
ca41f125 KS |
483 | #[cfg(test)] |
484 | mod test { | |
485 | use super::*; | |
486 | use std::fs::File; | |
487 | ||
488 | #[test] | |
489 | fn test_avi_demux() { | |
1678d59a | 490 | let mut file = File::open("assets/Indeo/laser05.avi").unwrap(); |
ca41f125 KS |
491 | let mut fr = FileReader::new_read(&mut file); |
492 | let mut br = ByteReader::new(&mut fr); | |
493 | let mut dmx = AVIDemuxer::new(&mut br); | |
bcfeae48 | 494 | let mut sm = StreamManager::new(); |
caf0f37e KS |
495 | let mut si = SeekIndex::new(); |
496 | dmx.open(&mut sm, &mut si).unwrap(); | |
ca41f125 KS |
497 | |
498 | loop { | |
bcfeae48 | 499 | let pktres = dmx.get_frame(&mut sm); |
ca41f125 | 500 | if let Err(e) = pktres { |
b1be9318 | 501 | if e == DemuxerError::EOF { break; } |
ca41f125 KS |
502 | panic!("error"); |
503 | } | |
504 | let pkt = pktres.unwrap(); | |
505 | println!("Got {}", pkt); | |
506 | } | |
507 | } | |
508 | } |