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, _seek_index: &mut SeekIndex) -> 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.is_empty() {
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 += u64::from(nblocks) * 32;
55 self.pkt_buf.push(apkt);
59 let mut buf: Vec<u8> = vec![0; size - asize + 1];
61 self.src.read_buf(&mut buf[1..])?;
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);
73 fn seek(&mut self, _time: u64, _seek_index: &SeekIndex) -> DemuxerResult<()> {
74 Err(DemuxerError::NotPossible)
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 }
84 impl<'a> BMVDemuxer<'a> {
85 fn new(io: &'a mut ByteReader<'a>) -> Self {
92 pkt_buf: Vec::with_capacity(1),
97 pub struct BMVDemuxerCreator { }
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))
103 fn get_name(&self) -> &'static str { "bmv" }
106 struct BMV3Demuxer<'a> {
107 src: &'a mut ByteReader<'a>,
114 pkt_buf: Vec<NAPacket>,
117 impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> {
118 #[allow(unused_variables)]
119 fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> {
120 let src = &mut self.src;
122 let mut magic = [0u8; 4];
123 src.read_buf(&mut magic)?;
124 validate!(&magic[0..] == b"BMVi");
125 let size = src.read_u32le()?;
126 validate!(size == 24);
127 let _slot_size = src.read_u32le()? as usize;
128 let nframes = src.read_u32le()? as usize;
129 let _prefetch_slots = src.read_u16le()?;
130 let _cache_size = src.read_u16le()?;
131 let fps = src.read_u16le()? as u32;
132 let audio_size = src.read_u16le()? as usize;
133 let audio_blob_size = src.read_u16le()? as usize;
134 let _audio_id = src.read_byte()?;
135 let _video_id = src.read_byte()?;
136 let width = src.read_u16le()? as usize;
137 let height = src.read_u16le()? as usize;
138 validate!(nframes > 0);
139 validate!((width > 0) && (width <= 640));
140 validate!((height > 0) && (height <= 432));
141 validate!((audio_size > audio_blob_size) && (audio_blob_size > 0) && (audio_size % audio_blob_size == 0));
142 let mut dta = [0u8; 4];
143 src.read_buf(&mut dta)?;
144 validate!(&dta[0..] == b"DATA");
145 let data_size = src.read_u32le()? as usize;
146 validate!(data_size > 0);
147 self.asize = audio_size;
148 self.ablob = audio_blob_size;
150 let vhdr = NAVideoInfo::new(width, height, false, RGB565_FORMAT);
151 let vci = NACodecTypeInfo::Video(vhdr);
152 let vinfo = NACodecInfo::new("bmv3-video", vci, None);
153 self.vid_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 256, fps)).unwrap();
155 let ahdr = NAAudioInfo::new(22050, 2, SND_S16_FORMAT, audio_blob_size);
156 let ainfo = NACodecInfo::new("bmv3-audio", NACodecTypeInfo::Audio(ahdr), None);
157 self.aud_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, 22050)).unwrap();
164 fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
165 if !self.pkt_buf.is_empty() {
166 return Ok(self.pkt_buf.pop().unwrap());
170 let ctype = self.src.read_byte()?;
171 if ctype == 0 { // NOP chunk
174 if ctype == 1 { return Err(DemuxerError::EOF); }
175 let size = self.src.read_u24le()? as usize;
176 if size == 0 { continue; }
178 if (ctype & 0x20) != 0 {
179 if (ctype & 0x40) != 0 {
180 asize = self.asize - self.ablob;
184 validate!(asize <= size);
185 let mut buf: Vec<u8> = vec![0; asize + 1];
186 buf[0] = (self.src.tell() & 1) as u8;
187 self.src.read_buf(&mut buf[1..])?;
189 let str = strmgr.get_stream(self.aud_id).unwrap();
190 let (tb_num, tb_den) = str.get_timebase();
191 let ts = NATimeInfo::new(Some(self.apos), None, None, tb_num, tb_den);
192 let apkt = NAPacket::new(str, ts, false, buf);
194 self.apos += (asize as u64) / 41 * 32;
195 self.pkt_buf.push(apkt);
200 if !self.pkt_buf.is_empty() {
201 return Ok(self.pkt_buf.pop().unwrap());
206 let mut buf: Vec<u8> = vec![0; size - asize + 1];
208 self.src.read_buf(&mut buf[1..])?;
210 let str = strmgr.get_stream(self.vid_id).unwrap();
211 let (tb_num, tb_den) = str.get_timebase();
212 let ts = NATimeInfo::new(Some(self.vpos), None, None, tb_num, tb_den);
213 let pkt = NAPacket::new(str, ts, (ctype & 3) == 3, buf);
220 fn seek(&mut self, _time: u64, _seek_index: &SeekIndex) -> DemuxerResult<()> {
221 Err(DemuxerError::NotPossible)
225 impl<'a> NAOptionHandler for BMV3Demuxer<'a> {
226 fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
227 fn set_options(&mut self, _options: &[NAOption]) { }
228 fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
231 impl<'a> BMV3Demuxer<'a> {
232 fn new(io: &'a mut ByteReader<'a>) -> Self {
241 pkt_buf: Vec::with_capacity(1),
246 pub struct BMV3DemuxerCreator { }
248 impl DemuxerCreator for BMV3DemuxerCreator {
249 fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
250 Box::new(BMV3Demuxer::new(br))
252 fn get_name(&self) -> &'static str { "bmv3" }
261 fn test_bmv_demux() {
262 let mut file = File::open("assets/Game/DW2-MOUSE.BMV").unwrap();
263 let mut fr = FileReader::new_read(&mut file);
264 let mut br = ByteReader::new(&mut fr);
265 let mut dmx = BMVDemuxer::new(&mut br);
266 let mut sm = StreamManager::new();
267 let mut si = SeekIndex::new();
268 dmx.open(&mut sm, &mut si).unwrap();
270 let pktres = dmx.get_frame(&mut sm);
271 if let Err(e) = pktres {
272 if (e as i32) == (DemuxerError::EOF as i32) { break; }
275 let pkt = pktres.unwrap();
276 println!("Got {}", pkt);
280 fn test_bmv3_demux() {
281 let mut file = File::open("assets/Game/DW3-Loffnote.bmv").unwrap();
282 let mut fr = FileReader::new_read(&mut file);
283 let mut br = ByteReader::new(&mut fr);
284 let mut dmx = BMV3Demuxer::new(&mut br);
285 let mut sm = StreamManager::new();
286 let mut si = SeekIndex::new();
287 dmx.open(&mut sm, &mut si).unwrap();
289 let pktres = dmx.get_frame(&mut sm);
290 if let Err(e) = pktres {
291 if (e as i32) == (DemuxerError::EOF as i32) { break; }
294 let pkt = pktres.unwrap();
295 println!("Got {}", pkt);