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1 | use nihav_core::frame::*; | |
2 | use nihav_core::demuxers::*; | |
3 | ||
4 | struct BMVDemuxer<'a> { | |
5 | src: &'a mut ByteReader<'a>, | |
6 | vid_id: usize, | |
7 | aud_id: usize, | |
8 | vpos: u64, | |
9 | apos: u64, | |
10 | pkt_buf: Vec<NAPacket>, | |
11 | } | |
12 | ||
13 | impl<'a> DemuxCore<'a> for BMVDemuxer<'a> { | |
14 | #[allow(unused_variables)] | |
15 | fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { | |
16 | let src = &mut self.src; | |
17 | ||
18 | let vhdr = NAVideoInfo::new(640, 429, false, PAL8_FORMAT); | |
19 | let vci = NACodecTypeInfo::Video(vhdr); | |
20 | let vinfo = NACodecInfo::new("bmv-video", vci, None); | |
21 | self.vid_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, 12)).unwrap(); | |
22 | ||
23 | let ahdr = NAAudioInfo::new(22050, 2, SND_S16_FORMAT, 1); | |
24 | let ainfo = NACodecInfo::new("bmv-audio", NACodecTypeInfo::Audio(ahdr), None); | |
25 | self.aud_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, 22050)).unwrap(); | |
26 | ||
27 | self.vpos = 0; | |
28 | self.apos = 0; | |
29 | Ok(()) | |
30 | } | |
31 | ||
32 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { | |
33 | if !self.pkt_buf.is_empty() { | |
34 | return Ok(self.pkt_buf.pop().unwrap()); | |
35 | } | |
36 | ||
37 | loop { | |
38 | let ctype = self.src.read_byte()?; | |
39 | if ctype == 0 { // NOP chunk | |
40 | continue; | |
41 | } | |
42 | if ctype == 1 { return Err(DemuxerError::EOF); } | |
43 | let size = self.src.read_u24le()? as usize; | |
44 | validate!(size > 0); | |
45 | let asize; | |
46 | if (ctype & 0x20) != 0 { | |
47 | let nblocks = self.src.peek_byte()?; | |
48 | asize = (nblocks as usize) * 65 + 1; | |
49 | validate!(asize < size); | |
50 | let str = strmgr.get_stream(self.aud_id).unwrap(); | |
51 | let (tb_num, tb_den) = str.get_timebase(); | |
52 | let ts = NATimeInfo::new(Some(self.apos), None, None, tb_num, tb_den); | |
53 | let apkt = self.src.read_packet(str, ts, false, asize)?; | |
54 | self.apos += u64::from(nblocks) * 32; | |
55 | self.pkt_buf.push(apkt); | |
56 | } else { | |
57 | asize = 0; | |
58 | } | |
59 | let mut buf: Vec<u8> = vec![0; size - asize + 1]; | |
60 | buf[0] = ctype; | |
61 | self.src.read_buf(&mut buf[1..])?; | |
62 | ||
63 | let str = strmgr.get_stream(self.vid_id).unwrap(); | |
64 | let (tb_num, tb_den) = str.get_timebase(); | |
65 | let ts = NATimeInfo::new(Some(self.vpos), None, None, tb_num, tb_den); | |
66 | let pkt = NAPacket::new(str, ts, (ctype & 3) == 3, buf); | |
67 | ||
68 | self.vpos += 1; | |
69 | return Ok(pkt); | |
70 | } | |
71 | } | |
72 | ||
73 | fn seek(&mut self, _time: u64, _seek_index: &SeekIndex) -> DemuxerResult<()> { | |
74 | Err(DemuxerError::NotPossible) | |
75 | } | |
76 | } | |
77 | ||
78 | impl<'a> BMVDemuxer<'a> { | |
79 | fn new(io: &'a mut ByteReader<'a>) -> Self { | |
80 | Self { | |
81 | src: io, | |
82 | vid_id: 0, | |
83 | aud_id: 0, | |
84 | vpos: 0, | |
85 | apos: 0, | |
86 | pkt_buf: Vec::with_capacity(1), | |
87 | } | |
88 | } | |
89 | } | |
90 | ||
91 | pub struct BMVDemuxerCreator { } | |
92 | ||
93 | impl DemuxerCreator for BMVDemuxerCreator { | |
94 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { | |
95 | Box::new(BMVDemuxer::new(br)) | |
96 | } | |
97 | fn get_name(&self) -> &'static str { "bmv" } | |
98 | } | |
99 | ||
100 | struct BMV3Demuxer<'a> { | |
101 | src: &'a mut ByteReader<'a>, | |
102 | vid_id: usize, | |
103 | aud_id: usize, | |
104 | vpos: u64, | |
105 | apos: u64, | |
106 | asize: usize, | |
107 | ablob: usize, | |
108 | pkt_buf: Vec<NAPacket>, | |
109 | } | |
110 | ||
111 | impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> { | |
112 | #[allow(unused_variables)] | |
113 | fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { | |
114 | let src = &mut self.src; | |
115 | ||
116 | let mut magic = [0u8; 4]; | |
117 | src.read_buf(&mut magic)?; | |
118 | validate!(&magic[0..] == b"BMVi"); | |
119 | let size = src.read_u32le()?; | |
120 | validate!(size == 24); | |
121 | let _slot_size = src.read_u32le()? as usize; | |
122 | let nframes = src.read_u32le()? as usize; | |
123 | let _prefetch_slots = src.read_u16le()?; | |
124 | let _cache_size = src.read_u16le()?; | |
125 | let fps = src.read_u16le()? as u32; | |
126 | let audio_size = src.read_u16le()? as usize; | |
127 | let audio_blob_size = src.read_u16le()? as usize; | |
128 | let _audio_id = src.read_byte()?; | |
129 | let _video_id = src.read_byte()?; | |
130 | let width = src.read_u16le()? as usize; | |
131 | let height = src.read_u16le()? as usize; | |
132 | validate!(nframes > 0); | |
133 | validate!((width > 0) && (width <= 640)); | |
134 | validate!((height > 0) && (height <= 432)); | |
135 | validate!((audio_size > audio_blob_size) && (audio_blob_size > 0) && (audio_size % audio_blob_size == 0)); | |
136 | let mut dta = [0u8; 4]; | |
137 | src.read_buf(&mut dta)?; | |
138 | validate!(&dta[0..] == b"DATA"); | |
139 | let data_size = src.read_u32le()? as usize; | |
140 | validate!(data_size > 0); | |
141 | self.asize = audio_size; | |
142 | self.ablob = audio_blob_size; | |
143 | ||
144 | let vhdr = NAVideoInfo::new(width, height, false, RGB565_FORMAT); | |
145 | let vci = NACodecTypeInfo::Video(vhdr); | |
146 | let vinfo = NACodecInfo::new("bmv3-video", vci, None); | |
147 | self.vid_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 256, fps)).unwrap(); | |
148 | ||
149 | let ahdr = NAAudioInfo::new(22050, 2, SND_S16_FORMAT, audio_blob_size); | |
150 | let ainfo = NACodecInfo::new("bmv3-audio", NACodecTypeInfo::Audio(ahdr), None); | |
151 | self.aud_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, 22050)).unwrap(); | |
152 | ||
153 | self.vpos = 0; | |
154 | self.apos = 0; | |
155 | Ok(()) | |
156 | } | |
157 | ||
158 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { | |
159 | if !self.pkt_buf.is_empty() { | |
160 | return Ok(self.pkt_buf.pop().unwrap()); | |
161 | } | |
162 | ||
163 | loop { | |
164 | let ctype = self.src.read_byte()?; | |
165 | if ctype == 0 { // NOP chunk | |
166 | continue; | |
167 | } | |
168 | if ctype == 1 { return Err(DemuxerError::EOF); } | |
169 | let size = self.src.read_u24le()? as usize; | |
170 | if size == 0 { continue; } | |
171 | let asize; | |
172 | if (ctype & 0x20) != 0 { | |
173 | if (ctype & 0x40) != 0 { | |
174 | asize = self.asize - self.ablob; | |
175 | } else { | |
176 | asize = self.asize; | |
177 | } | |
178 | validate!(asize <= size); | |
179 | let mut buf: Vec<u8> = vec![0; asize + 1]; | |
180 | buf[0] = (self.src.tell() & 1) as u8; | |
181 | self.src.read_buf(&mut buf[1..])?; | |
182 | ||
183 | let str = strmgr.get_stream(self.aud_id).unwrap(); | |
184 | let (tb_num, tb_den) = str.get_timebase(); | |
185 | let ts = NATimeInfo::new(Some(self.apos), None, None, tb_num, tb_den); | |
186 | let apkt = NAPacket::new(str, ts, false, buf); | |
187 | ||
188 | self.apos += (asize as u64) / 41 * 32; | |
189 | self.pkt_buf.push(apkt); | |
190 | } else { | |
191 | asize = 0; | |
192 | } | |
193 | if size == asize { | |
194 | if !self.pkt_buf.is_empty() { | |
195 | return Ok(self.pkt_buf.pop().unwrap()); | |
196 | } else { | |
197 | continue; | |
198 | } | |
199 | } | |
200 | let mut buf: Vec<u8> = vec![0; size - asize + 1]; | |
201 | buf[0] = ctype; | |
202 | self.src.read_buf(&mut buf[1..])?; | |
203 | ||
204 | let str = strmgr.get_stream(self.vid_id).unwrap(); | |
205 | let (tb_num, tb_den) = str.get_timebase(); | |
206 | let ts = NATimeInfo::new(Some(self.vpos), None, None, tb_num, tb_den); | |
207 | let pkt = NAPacket::new(str, ts, (ctype & 3) == 3, buf); | |
208 | ||
209 | self.vpos += 1; | |
210 | return Ok(pkt); | |
211 | } | |
212 | } | |
213 | ||
214 | fn seek(&mut self, _time: u64, _seek_index: &SeekIndex) -> DemuxerResult<()> { | |
215 | Err(DemuxerError::NotPossible) | |
216 | } | |
217 | } | |
218 | ||
219 | impl<'a> BMV3Demuxer<'a> { | |
220 | fn new(io: &'a mut ByteReader<'a>) -> Self { | |
221 | Self { | |
222 | src: io, | |
223 | vid_id: 0, | |
224 | aud_id: 0, | |
225 | vpos: 0, | |
226 | apos: 0, | |
227 | asize: 0, | |
228 | ablob: 0, | |
229 | pkt_buf: Vec::with_capacity(1), | |
230 | } | |
231 | } | |
232 | } | |
233 | ||
234 | pub struct BMV3DemuxerCreator { } | |
235 | ||
236 | impl DemuxerCreator for BMV3DemuxerCreator { | |
237 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { | |
238 | Box::new(BMV3Demuxer::new(br)) | |
239 | } | |
240 | fn get_name(&self) -> &'static str { "bmv3" } | |
241 | } | |
242 | ||
243 | #[cfg(test)] | |
244 | mod test { | |
245 | use super::*; | |
246 | use std::fs::File; | |
247 | ||
248 | #[test] | |
249 | fn test_bmv_demux() { | |
250 | let mut file = File::open("assets/Game/DW2-MOUSE.BMV").unwrap(); | |
251 | let mut fr = FileReader::new_read(&mut file); | |
252 | let mut br = ByteReader::new(&mut fr); | |
253 | let mut dmx = BMVDemuxer::new(&mut br); | |
254 | let mut sm = StreamManager::new(); | |
255 | let mut si = SeekIndex::new(); | |
256 | dmx.open(&mut sm, &mut si).unwrap(); | |
257 | loop { | |
258 | let pktres = dmx.get_frame(&mut sm); | |
259 | if let Err(e) = pktres { | |
260 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
261 | panic!("error"); | |
262 | } | |
263 | let pkt = pktres.unwrap(); | |
264 | println!("Got {}", pkt); | |
265 | } | |
266 | } | |
267 | #[test] | |
268 | fn test_bmv3_demux() { | |
269 | let mut file = File::open("assets/Game/DW3-Loffnote.bmv").unwrap(); | |
270 | let mut fr = FileReader::new_read(&mut file); | |
271 | let mut br = ByteReader::new(&mut fr); | |
272 | let mut dmx = BMV3Demuxer::new(&mut br); | |
273 | let mut sm = StreamManager::new(); | |
274 | let mut si = SeekIndex::new(); | |
275 | dmx.open(&mut sm, &mut si).unwrap(); | |
276 | loop { | |
277 | let pktres = dmx.get_frame(&mut sm); | |
278 | if let Err(e) = pktres { | |
279 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
280 | panic!("error"); | |
281 | } | |
282 | let pkt = pktres.unwrap(); | |
283 | println!("Got {}", pkt); | |
284 | } | |
285 | } | |
286 | } |