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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> NAOptionHandler for BMVDemuxer<'a> { | |
79 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
80 | fn set_options(&mut self, _options: &[NAOption]) { } | |
81 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
82 | } | |
83 | ||
84 | impl<'a> BMVDemuxer<'a> { | |
85 | fn new(io: &'a mut ByteReader<'a>) -> Self { | |
86 | Self { | |
87 | src: io, | |
88 | vid_id: 0, | |
89 | aud_id: 0, | |
90 | vpos: 0, | |
91 | apos: 0, | |
92 | pkt_buf: Vec::with_capacity(1), | |
93 | } | |
94 | } | |
95 | } | |
96 | ||
97 | pub struct BMVDemuxerCreator { } | |
98 | ||
99 | impl DemuxerCreator for BMVDemuxerCreator { | |
100 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { | |
101 | Box::new(BMVDemuxer::new(br)) | |
102 | } | |
103 | fn get_name(&self) -> &'static str { "bmv" } | |
104 | } | |
105 | ||
106 | struct BMV3Demuxer<'a> { | |
107 | src: &'a mut ByteReader<'a>, | |
108 | vid_id: usize, | |
109 | aud_id: usize, | |
110 | vpos: u64, | |
111 | apos: u64, | |
112 | asize: usize, | |
113 | ablob: usize, | |
114 | pkt_buf: Vec<NAPacket>, | |
115 | } | |
116 | ||
117 | impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> { | |
118 | #[allow(unused_variables)] | |
119 | #[allow(clippy::cast_lossless)] | |
120 | fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { | |
121 | let src = &mut self.src; | |
122 | ||
123 | let mut magic = [0u8; 4]; | |
124 | src.read_buf(&mut magic)?; | |
125 | validate!(&magic[0..] == b"BMVi"); | |
126 | let size = src.read_u32le()?; | |
127 | validate!(size == 24); | |
128 | let _slot_size = src.read_u32le()? as usize; | |
129 | let nframes = src.read_u32le()? as usize; | |
130 | let _prefetch_slots = src.read_u16le()?; | |
131 | let _cache_size = src.read_u16le()?; | |
132 | let fps = src.read_u16le()? as u32; | |
133 | let audio_size = src.read_u16le()? as usize; | |
134 | let audio_blob_size = src.read_u16le()? as usize; | |
135 | let _audio_id = src.read_byte()?; | |
136 | let _video_id = src.read_byte()?; | |
137 | let width = src.read_u16le()? as usize; | |
138 | let height = src.read_u16le()? as usize; | |
139 | validate!(nframes > 0); | |
140 | validate!((width > 0) && (width <= 640)); | |
141 | validate!((height > 0) && (height <= 432)); | |
142 | validate!((audio_size > audio_blob_size) && (audio_blob_size > 0) && (audio_size % audio_blob_size == 0)); | |
143 | let mut dta = [0u8; 4]; | |
144 | src.read_buf(&mut dta)?; | |
145 | validate!(&dta[0..] == b"DATA"); | |
146 | let data_size = src.read_u32le()? as usize; | |
147 | validate!(data_size > 0); | |
148 | self.asize = audio_size; | |
149 | self.ablob = audio_blob_size; | |
150 | ||
151 | let vhdr = NAVideoInfo::new(width, height, false, RGB565_FORMAT); | |
152 | let vci = NACodecTypeInfo::Video(vhdr); | |
153 | let vinfo = NACodecInfo::new("bmv3-video", vci, None); | |
154 | self.vid_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 256, fps)).unwrap(); | |
155 | ||
156 | let ahdr = NAAudioInfo::new(22050, 2, SND_S16_FORMAT, audio_blob_size); | |
157 | let ainfo = NACodecInfo::new("bmv3-audio", NACodecTypeInfo::Audio(ahdr), None); | |
158 | self.aud_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, 22050)).unwrap(); | |
159 | ||
160 | self.vpos = 0; | |
161 | self.apos = 0; | |
162 | Ok(()) | |
163 | } | |
164 | ||
165 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { | |
166 | if !self.pkt_buf.is_empty() { | |
167 | return Ok(self.pkt_buf.pop().unwrap()); | |
168 | } | |
169 | ||
170 | loop { | |
171 | let ctype = self.src.read_byte()?; | |
172 | if ctype == 0 { // NOP chunk | |
173 | continue; | |
174 | } | |
175 | if ctype == 1 { return Err(DemuxerError::EOF); } | |
176 | let size = self.src.read_u24le()? as usize; | |
177 | if size == 0 { continue; } | |
178 | let asize; | |
179 | if (ctype & 0x20) != 0 { | |
180 | if (ctype & 0x40) != 0 { | |
181 | asize = self.asize - self.ablob; | |
182 | } else { | |
183 | asize = self.asize; | |
184 | } | |
185 | validate!(asize <= size); | |
186 | let mut buf: Vec<u8> = vec![0; asize + 1]; | |
187 | buf[0] = (self.src.tell() & 1) as u8; | |
188 | self.src.read_buf(&mut buf[1..])?; | |
189 | ||
190 | let str = strmgr.get_stream(self.aud_id).unwrap(); | |
191 | let (tb_num, tb_den) = str.get_timebase(); | |
192 | let ts = NATimeInfo::new(Some(self.apos), None, None, tb_num, tb_den); | |
193 | let apkt = NAPacket::new(str, ts, false, buf); | |
194 | ||
195 | self.apos += (asize as u64) / 41 * 32; | |
196 | self.pkt_buf.push(apkt); | |
197 | } else { | |
198 | asize = 0; | |
199 | } | |
200 | if size == asize { | |
201 | if !self.pkt_buf.is_empty() { | |
202 | return Ok(self.pkt_buf.pop().unwrap()); | |
203 | } else { | |
204 | continue; | |
205 | } | |
206 | } | |
207 | let mut buf: Vec<u8> = vec![0; size - asize + 1]; | |
208 | buf[0] = ctype; | |
209 | self.src.read_buf(&mut buf[1..])?; | |
210 | ||
211 | let str = strmgr.get_stream(self.vid_id).unwrap(); | |
212 | let (tb_num, tb_den) = str.get_timebase(); | |
213 | let ts = NATimeInfo::new(Some(self.vpos), None, None, tb_num, tb_den); | |
214 | let pkt = NAPacket::new(str, ts, (ctype & 3) == 3, buf); | |
215 | ||
216 | self.vpos += 1; | |
217 | return Ok(pkt); | |
218 | } | |
219 | } | |
220 | ||
221 | fn seek(&mut self, _time: u64, _seek_index: &SeekIndex) -> DemuxerResult<()> { | |
222 | Err(DemuxerError::NotPossible) | |
223 | } | |
224 | } | |
225 | ||
226 | impl<'a> NAOptionHandler for BMV3Demuxer<'a> { | |
227 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
228 | fn set_options(&mut self, _options: &[NAOption]) { } | |
229 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
230 | } | |
231 | ||
232 | impl<'a> BMV3Demuxer<'a> { | |
233 | fn new(io: &'a mut ByteReader<'a>) -> Self { | |
234 | Self { | |
235 | src: io, | |
236 | vid_id: 0, | |
237 | aud_id: 0, | |
238 | vpos: 0, | |
239 | apos: 0, | |
240 | asize: 0, | |
241 | ablob: 0, | |
242 | pkt_buf: Vec::with_capacity(1), | |
243 | } | |
244 | } | |
245 | } | |
246 | ||
247 | pub struct BMV3DemuxerCreator { } | |
248 | ||
249 | impl DemuxerCreator for BMV3DemuxerCreator { | |
250 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { | |
251 | Box::new(BMV3Demuxer::new(br)) | |
252 | } | |
253 | fn get_name(&self) -> &'static str { "bmv3" } | |
254 | } | |
255 | ||
256 | #[cfg(test)] | |
257 | mod test { | |
258 | use super::*; | |
259 | use std::fs::File; | |
260 | ||
261 | #[test] | |
262 | fn test_bmv_demux() { | |
263 | let mut file = File::open("assets/Game/DW2-MOUSE.BMV").unwrap(); | |
264 | let mut fr = FileReader::new_read(&mut file); | |
265 | let mut br = ByteReader::new(&mut fr); | |
266 | let mut dmx = BMVDemuxer::new(&mut br); | |
267 | let mut sm = StreamManager::new(); | |
268 | let mut si = SeekIndex::new(); | |
269 | dmx.open(&mut sm, &mut si).unwrap(); | |
270 | loop { | |
271 | let pktres = dmx.get_frame(&mut sm); | |
272 | if let Err(e) = pktres { | |
273 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
274 | panic!("error"); | |
275 | } | |
276 | let pkt = pktres.unwrap(); | |
277 | println!("Got {}", pkt); | |
278 | } | |
279 | } | |
280 | #[test] | |
281 | fn test_bmv3_demux() { | |
282 | let mut file = File::open("assets/Game/DW3-Loffnote.bmv").unwrap(); | |
283 | let mut fr = FileReader::new_read(&mut file); | |
284 | let mut br = ByteReader::new(&mut fr); | |
285 | let mut dmx = BMV3Demuxer::new(&mut br); | |
286 | let mut sm = StreamManager::new(); | |
287 | let mut si = SeekIndex::new(); | |
288 | dmx.open(&mut sm, &mut si).unwrap(); | |
289 | loop { | |
290 | let pktres = dmx.get_frame(&mut sm); | |
291 | if let Err(e) = pktres { | |
292 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
293 | panic!("error"); | |
294 | } | |
295 | let pkt = pktres.unwrap(); | |
296 | println!("Got {}", pkt); | |
297 | } | |
298 | } | |
299 | } |