1 use nihav_core::frame::*;
2 use nihav_core::demuxers::*;
4 struct BMVDemuxer<'a> {
5 src: &'a mut ByteReader<'a>,
10 pkt_buf: Vec<NAPacket>,
13 impl<'a> DemuxCore<'a> for BMVDemuxer<'a> {
14 #[allow(unused_variables)]
15 fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
16 let src = &mut self.src;
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();
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();
32 fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
33 if self.pkt_buf.len() > 0 {
34 return Ok(self.pkt_buf.pop().unwrap());
38 let ctype = self.src.read_byte()?;
39 if ctype == 0 { // NOP chunk
42 if ctype == 1 { return Err(DemuxerError::EOF); }
43 let size = self.src.read_u24le()? as usize;
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 += (nblocks as u64) * 32;
55 self.pkt_buf.push(apkt);
59 let mut buf: Vec<u8> = Vec::with_capacity(size - asize + 1);
60 buf.resize(size - asize + 1, 0);
62 self.src.read_buf(&mut buf[1..])?;
64 let str = strmgr.get_stream(self.vid_id).unwrap();
65 let (tb_num, tb_den) = str.get_timebase();
66 let ts = NATimeInfo::new(Some(self.vpos), None, None, tb_num, tb_den);
67 let pkt = NAPacket::new(str, ts, (ctype & 3) == 3, buf);
74 #[allow(unused_variables)]
75 fn seek(&mut self, time: u64) -> DemuxerResult<()> {
76 Err(DemuxerError::NotImplemented)
80 impl<'a> BMVDemuxer<'a> {
81 fn new(io: &'a mut ByteReader<'a>) -> Self {
88 pkt_buf: Vec::with_capacity(1),
93 pub struct BMVDemuxerCreator { }
95 impl DemuxerCreator for BMVDemuxerCreator {
96 fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> {
97 Box::new(BMVDemuxer::new(br))
99 fn get_name(&self) -> &'static str { "bmv" }
102 struct BMV3Demuxer<'a> {
103 src: &'a mut ByteReader<'a>,
110 pkt_buf: Vec<NAPacket>,
113 impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> {
114 #[allow(unused_variables)]
115 fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
116 let src = &mut self.src;
118 let mut magic = [0u8; 4];
119 src.read_buf(&mut magic)?;
120 validate!(&magic[0..] == b"BMVi");
121 let size = src.read_u32le()?;
122 validate!(size == 24);
123 let _slot_size = src.read_u32le()? as usize;
124 let nframes = src.read_u32le()? as usize;
125 let _prefetch_slots = src.read_u16le()?;
126 let _cache_size = src.read_u16le()?;
127 let fps = src.read_u16le()? as u32;
128 let audio_size = src.read_u16le()? as usize;
129 let audio_blob_size = src.read_u16le()? as usize;
130 let _audio_id = src.read_byte()?;
131 let _video_id = src.read_byte()?;
132 let width = src.read_u16le()? as usize;
133 let height = src.read_u16le()? as usize;
134 validate!(nframes > 0);
135 validate!((width > 0) && (width <= 640));
136 validate!((height > 0) && (height <= 432));
137 validate!((audio_size > audio_blob_size) && (audio_blob_size > 0) && (audio_size % audio_blob_size == 0));
138 let mut dta = [0u8; 4];
139 src.read_buf(&mut dta)?;
140 validate!(&dta[0..] == b"DATA");
141 let data_size = src.read_u32le()? as usize;
142 validate!(data_size > 0);
143 self.asize = audio_size;
144 self.ablob = audio_blob_size;
146 let vhdr = NAVideoInfo::new(width, height, false, RGB565_FORMAT);
147 let vci = NACodecTypeInfo::Video(vhdr);
148 let vinfo = NACodecInfo::new("bmv3-video", vci, None);
149 self.vid_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 256, fps)).unwrap();
151 let ahdr = NAAudioInfo::new(22050, 2, SND_S16_FORMAT, audio_blob_size);
152 let ainfo = NACodecInfo::new("bmv3-audio", NACodecTypeInfo::Audio(ahdr), None);
153 self.aud_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, 22050)).unwrap();
160 fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
161 if self.pkt_buf.len() > 0 {
162 return Ok(self.pkt_buf.pop().unwrap());
166 let ctype = self.src.read_byte()?;
167 if ctype == 0 { // NOP chunk
170 if ctype == 1 { return Err(DemuxerError::EOF); }
171 let size = self.src.read_u24le()? as usize;
172 if size == 0 { continue; }
174 if (ctype & 0x20) != 0 {
175 if (ctype & 0x40) != 0 {
176 asize = self.asize - self.ablob;
180 validate!(asize <= size);
181 let mut buf: Vec<u8> = Vec::with_capacity(asize + 1);
182 buf.resize(asize + 1, 0);
183 buf[0] = (self.src.tell() & 1) as u8;
184 self.src.read_buf(&mut buf[1..])?;
186 let str = strmgr.get_stream(self.aud_id).unwrap();
187 let (tb_num, tb_den) = str.get_timebase();
188 let ts = NATimeInfo::new(Some(self.apos), None, None, tb_num, tb_den);
189 let apkt = NAPacket::new(str, ts, false, buf);
191 self.apos += (asize as u64) / 41 * 32;
192 self.pkt_buf.push(apkt);
197 if self.pkt_buf.len() > 0 {
198 return Ok(self.pkt_buf.pop().unwrap());
203 let mut buf: Vec<u8> = Vec::with_capacity(size - asize + 1);
204 buf.resize(size - asize + 1, 0);
206 self.src.read_buf(&mut buf[1..])?;
208 let str = strmgr.get_stream(self.vid_id).unwrap();
209 let (tb_num, tb_den) = str.get_timebase();
210 let ts = NATimeInfo::new(Some(self.vpos), None, None, tb_num, tb_den);
211 let pkt = NAPacket::new(str, ts, (ctype & 3) == 3, buf);
218 #[allow(unused_variables)]
219 fn seek(&mut self, time: u64) -> DemuxerResult<()> {
220 Err(DemuxerError::NotImplemented)
224 impl<'a> BMV3Demuxer<'a> {
225 fn new(io: &'a mut ByteReader<'a>) -> Self {
234 pkt_buf: Vec::with_capacity(1),
239 pub struct BMV3DemuxerCreator { }
241 impl DemuxerCreator for BMV3DemuxerCreator {
242 fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> {
243 Box::new(BMV3Demuxer::new(br))
245 fn get_name(&self) -> &'static str { "bmv3" }
254 fn test_bmv_demux() {
255 let mut file = File::open("assets/Game/DW2-MOUSE.BMV").unwrap();
256 let mut fr = FileReader::new_read(&mut file);
257 let mut br = ByteReader::new(&mut fr);
258 let mut dmx = BMVDemuxer::new(&mut br);
259 let mut sm = StreamManager::new();
260 dmx.open(&mut sm).unwrap();
262 let pktres = dmx.get_frame(&mut sm);
263 if let Err(e) = pktres {
264 if (e as i32) == (DemuxerError::EOF as i32) { break; }
267 let pkt = pktres.unwrap();
268 println!("Got {}", pkt);
272 fn test_bmv3_demux() {
273 let mut file = File::open("assets/Game/DW3-Loffnote.bmv").unwrap();
274 let mut fr = FileReader::new_read(&mut file);
275 let mut br = ByteReader::new(&mut fr);
276 let mut dmx = BMV3Demuxer::new(&mut br);
277 let mut sm = StreamManager::new();
278 dmx.open(&mut sm).unwrap();
280 let pktres = dmx.get_frame(&mut sm);
281 if let Err(e) = pktres {
282 if (e as i32) == (DemuxerError::EOF as i32) { break; }
285 let pkt = pktres.unwrap();
286 println!("Got {}", pkt);