1 use nihav_core::demuxers::*;
2 use nihav_core::register;
3 use nihav_core::demuxers::DemuxerError::*;
6 ($a:expr, $b:expr, $c:expr, $d:expr) => ({
7 (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32)
10 (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32)
17 strm_type: Option<StreamType>,
22 StreamState { strm_no: 0, got_strf: true, strm_type: None }
25 self.strm_type = None;
29 fn valid_state(&self) -> bool {
30 match self.strm_type {
31 None => self.got_strf,
38 struct AVIDemuxer<'a> {
39 src: &'a mut ByteReader<'a>,
49 #[derive(Debug,Clone,Copy,PartialEq)]
57 parse: fn(&mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize>,
60 impl<'a> DemuxCore<'a> for AVIDemuxer<'a> {
61 #[allow(unused_variables)]
62 fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
63 self.read_header(strmgr)?;
67 fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
68 if self.movi_size == 0 { return Err(EOF); }
69 let mut tag: [u8; 4] = [0; 4];
71 if (self.src.tell() & 1) == 1 {
72 self.src.read_skip(1)?;
74 if self.movi_size == 0 { return Err(EOF); }
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)?;
81 if self.movi_size == 0 { return Err(EOF); }
84 if mktag!(tag) == mktag!(b"LIST") {
86 self.src.read_skip(4)?;
87 if self.movi_size == 0 { return Err(EOF); }
90 if tag[0] == b'i' && tag[1] == b'x' {
93 if tag[0] < b'0' || tag[0] > b'9' || tag[1] < b'0' || tag[1] > b'9' {
94 return Err(InvalidData);
96 let stream_no = (tag[0] - b'0') * 10 + (tag[1] - b'0');
97 let str = strmgr.get_stream(stream_no as usize);
98 if str.is_none() { return Err(InvalidData); }
99 let stream = str.unwrap();
102 if self.movi_size == 0 { return Err(EOF); }
105 let (tb_num, tb_den) = stream.get_timebase();
106 let ts = NATimeInfo::new(Some(self.cur_frame[stream_no as usize]), None, None, tb_num, tb_den);
107 let pkt = self.src.read_packet(stream, ts, false, size)?;
108 self.cur_frame[stream_no as usize] += 1;
109 self.movi_size -= size + 8;
115 #[allow(unused_variables)]
116 fn seek(&mut self, time: u64) -> DemuxerResult<()> {
121 impl<'a> AVIDemuxer<'a> {
122 fn new(io: &'a mut ByteReader<'a>) -> Self {
124 cur_frame: Vec::new(),
129 sstate: StreamState::new(),
135 fn parse_chunk(&mut self, strmgr: &mut StreamManager, end_tag: RIFFTag, csize: usize, depth: u16) -> DemuxerResult<(usize, bool)> {
136 if csize < 8 { return Err(InvalidData); }
137 if depth > 42 { return Err(InvalidData); }
139 let tag = self.src.read_u32be()?;
140 let size = self.src.read_u32le()? as usize;
141 if size > csize { return Err(InvalidData); }
142 if RIFFTag::Chunk(tag) == end_tag {
143 return Ok((size, true));
145 let is_list = is_list_tag(tag);
146 let ltag = if is_list { self.src.read_u32be()? } else { 0 };
147 if RIFFTag::List(tag, ltag) == end_tag {
148 return Ok((size, true));
151 for chunk in CHUNKS.iter() {
152 if RIFFTag::Chunk(tag) == chunk.tag {
153 let psize = (chunk.parse)(self, strmgr, size)?;
154 if psize != size { return Err(InvalidData); }
155 if (psize & 1) == 1 { self.src.read_skip(1)?; }
156 return Ok((size + 8, false));
158 if RIFFTag::List(tag, ltag) == chunk.tag {
159 let mut rest_size = size - 4;
160 let psize = (chunk.parse)(self, strmgr, rest_size)?;
161 if psize > rest_size { return Err(InvalidData); }
163 while rest_size > 0 {
164 let (psize, _) = self.parse_chunk(strmgr, end_tag, rest_size, depth+1)?;
165 if psize > rest_size { return Err(InvalidData); }
167 if ((psize & 1) == 1) && (rest_size > 0) {
172 return Ok((size + 8, false));
176 self.src.read_skip(size)?;
178 if size < 4 { return Err(InvalidData); }
179 self.src.read_skip(size - 4)?;
181 if (size & 1) == 1 { self.src.read_skip(1)?; }
182 Ok((size + 8, false))
185 fn read_header(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
186 let riff_tag = self.src.read_u32be()?;
187 let size = self.src.read_u32le()? as usize;
188 let avi_tag = self.src.read_u32be()?;
189 let mut matches = false;
190 for rt in RIFF_TAGS.iter() {
191 if rt[0] == riff_tag && rt[1] == avi_tag {
197 return Err(InvalidData);
200 let mut rest_size = size;
202 let (csz, end) = self.parse_chunk(strmgr, RIFFTag::List(mktag!(b"LIST"), mktag!(b"movi")), rest_size,0)?;
203 if end { self.movi_size = csz - 4; break; }
206 if !self.sstate.valid_state() || self.sstate.strm_no != self.num_streams {
207 return Err(InvalidData);
212 fn read_extradata(&mut self, size: usize) -> DemuxerResult<Option<Vec<u8>>> {
213 if size == 0 { return Ok(None); }
214 let mut edvec: Vec<u8> = vec![0; size];
215 self.src.read_buf(&mut edvec)?;
220 const RIFF_TAGS: &[[u32; 2]] = &[
221 [ mktag!(b"RIFF"), mktag!(b"AVI ") ],
222 [ mktag!(b"RIFF"), mktag!(b"AVIX") ],
223 [ mktag!(b"ON2 "), mktag!(b"ON2f") ],
226 const CHUNKS: [RIFFParser; 7] = [
227 RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"hdrl")), parse: parse_hdrl },
228 RIFFParser { tag: RIFFTag::List(mktag!(b"LIST"), mktag!(b"strl")), parse: parse_strl },
229 RIFFParser { tag: RIFFTag::Chunk(mktag!(b"avih")), parse: parse_avih },
230 RIFFParser { tag: RIFFTag::Chunk(mktag!(b"ON2h")), parse: parse_avih },
231 RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strf")), parse: parse_strf },
232 RIFFParser { tag: RIFFTag::Chunk(mktag!(b"strh")), parse: parse_strh },
233 RIFFParser { tag: RIFFTag::Chunk(mktag!(b"JUNK")), parse: parse_junk },
236 fn is_list_tag(tag: u32) -> bool {
237 for chunk in CHUNKS.iter() {
238 if let RIFFTag::List(ltag, _) = chunk.tag {
247 #[allow(unused_variables)]
248 fn parse_hdrl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
252 #[allow(unused_variables)]
253 fn parse_strl(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
257 #[allow(unused_variables)]
258 fn parse_strh(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
259 if size < 0x38 { return Err(InvalidData); }
260 let tag = dmx.src.read_u32be()?; //stream type
261 let fcc = dmx.src.read_u32be()?; //handler(fourcc)
262 dmx.src.read_u32le()?; //flags
263 dmx.src.read_skip(2)?; //priority
264 dmx.src.read_skip(2)?; //language
265 dmx.src.read_skip(4)?; //initial frames
266 dmx.tb_num = dmx.src.read_u32le()?; //scale
267 dmx.tb_den = dmx.src.read_u32le()?; //rate
268 dmx.src.read_skip(4)?; //start
269 dmx.src.read_skip(4)?; //length
270 dmx.src.read_skip(4)?; //buf size
271 dmx.src.read_skip(4)?; //quality
272 dmx.src.read_skip(4)?; //sample size
273 let a = dmx.src.read_u16le()?;
274 let b = dmx.src.read_u16le()?;
275 let c = dmx.src.read_u16le()?;
276 let d = dmx.src.read_u16le()?;
278 dmx.src.read_skip(size - 0x38)?;
280 if !dmx.sstate.valid_state() || dmx.sstate.strm_no >= dmx.num_streams {
281 return Err(InvalidData);
283 if tag == mktag!(b"vids") {
284 dmx.sstate.strm_type = Some(StreamType::Video);
285 } else if tag == mktag!(b"auds") {
286 dmx.sstate.strm_type = Some(StreamType::Audio);
288 dmx.sstate.strm_type = Some(StreamType::Data);
290 dmx.sstate.got_strf = false;
295 fn parse_strf(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
296 if dmx.sstate.strm_type.is_none() { return Err(InvalidData); }
297 match dmx.sstate.strm_type.unwrap() {
298 StreamType::Video => parse_strf_vids(dmx, strmgr, size),
299 StreamType::Audio => parse_strf_auds(dmx, strmgr, size),
300 _ => parse_strf_xxxx(dmx, strmgr, size),
304 #[allow(unused_variables)]
305 fn parse_strf_vids(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
306 if size < 40 { return Err(InvalidData); }
307 let bi_size = dmx.src.read_u32le()?;
308 if (bi_size as usize) > size { return Err(InvalidData); }
309 let width = dmx.src.read_u32le()?;
310 let height = dmx.src.read_u32le()? as i32;
311 let planes = dmx.src.read_u16le()?;
312 let bitcount = dmx.src.read_u16le()?;
313 let mut compression: [u8; 4] = [0; 4];
314 dmx.src.read_buf(&mut compression)?;
315 let img_size = dmx.src.read_u32le()?;
316 let xdpi = dmx.src.read_u32le()?;
317 let ydpi = dmx.src.read_u32le()?;
318 let colors = dmx.src.read_u32le()?;
319 let imp_colors = dmx.src.read_u32le()?;
321 let flip = height < 0;
322 let format = if bitcount > 8 { RGB24_FORMAT } else { PAL8_FORMAT };
323 let vhdr = NAVideoInfo::new(width as usize, if flip { -height as usize } else { height as usize}, flip, PAL8_FORMAT);
324 let vci = NACodecTypeInfo::Video(vhdr);
325 let edata = dmx.read_extradata(size - 40)?;
326 let cname = match register::find_codec_from_avi_fourcc(&compression) {
330 let vinfo = NACodecInfo::new(cname, vci, edata);
331 let res = strmgr.add_stream(NAStream::new(StreamType::Video, u32::from(dmx.sstate.strm_no), vinfo, dmx.tb_num, dmx.tb_den));
332 if res.is_none() { return Err(MemoryError); }
337 #[allow(unused_variables)]
338 fn parse_strf_auds(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
339 if size < 16 { return Err(InvalidData); }
340 let w_format_tag = dmx.src.read_u16le()?;
341 let channels = dmx.src.read_u16le()?;
342 let samplespersec = dmx.src.read_u32le()?;
343 let avgbytespersec = dmx.src.read_u32le()?;
344 let block_align = dmx.src.read_u16le()?;
345 let bits_per_sample = dmx.src.read_u16le()? * 8;
347 let soniton = NASoniton::new(bits_per_sample as u8, SONITON_FLAG_SIGNED);
348 let ahdr = NAAudioInfo::new(samplespersec, channels as u8, soniton, block_align as usize);
349 let edata = dmx.read_extradata(size - 16)?;
350 let cname = match register::find_codec_from_wav_twocc(w_format_tag) {
354 let ainfo = NACodecInfo::new(cname, NACodecTypeInfo::Audio(ahdr), edata);
355 let res = strmgr.add_stream(NAStream::new(StreamType::Audio, u32::from(dmx.sstate.strm_no), ainfo, dmx.tb_num, dmx.tb_den));
356 if res.is_none() { return Err(MemoryError); }
361 fn parse_strf_xxxx(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
362 let edata = dmx.read_extradata(size)?;
363 let info = NACodecInfo::new("unknown", NACodecTypeInfo::None, edata);
364 let res = strmgr.add_stream(NAStream::new(StreamType::Data, u32::from(dmx.sstate.strm_no), info, dmx.tb_num, dmx.tb_den));
365 if res.is_none() { return Err(MemoryError); }
370 #[allow(unused_variables)]
371 fn parse_avih(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
372 if size < 0x38 { return Err(InvalidData); }
373 let timebase = dmx.src.read_u32le()?; //microsec per frame
374 dmx.src.read_skip(4)?; //max frame size
375 dmx.src.read_skip(4)?; //padding
376 dmx.src.read_u32le()?; //flags
377 let frames = dmx.src.read_u32le()?; //frames
378 dmx.src.read_skip(4)?; //initial frames
379 let streams = dmx.src.read_u32le()?; //streams
380 if streams > 100 { return Err(InvalidData); }
381 dmx.num_streams = streams as u8;
383 dmx.src.read_skip(4)?; //buf size
384 let width = dmx.src.read_u32le()?; //width
385 let height = dmx.src.read_u32le()? as i32; //height
386 dmx.src.read_skip(16)?; //reserved
388 dmx.cur_frame.resize(streams as usize, 0);
389 dmx.src.read_skip(size - 0x38)?;
393 #[allow(unused_variables)]
394 fn parse_junk(dmx: &mut AVIDemuxer, strmgr: &mut StreamManager, size: usize) -> DemuxerResult<usize> {
395 dmx.src.read_skip(size)?;
399 pub struct AVIDemuxerCreator { }
401 impl DemuxerCreator for AVIDemuxerCreator {
402 fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
403 Box::new(AVIDemuxer::new(br))
405 fn get_name(&self) -> &'static str { "avi" }
414 fn test_avi_demux() {
415 let mut file = File::open("assets/Indeo/laser05.avi").unwrap();
416 let mut fr = FileReader::new_read(&mut file);
417 let mut br = ByteReader::new(&mut fr);
418 let mut dmx = AVIDemuxer::new(&mut br);
419 let mut sm = StreamManager::new();
420 dmx.open(&mut sm).unwrap();
423 let pktres = dmx.get_frame(&mut sm);
424 if let Err(e) = pktres {
425 if e == DemuxerError::EOF { break; }
428 let pkt = pktres.unwrap();
429 println!("Got {}", pkt);