| 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, 0)).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, 0)).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: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> { |
| 74 | Err(DemuxerError::NotPossible) |
| 75 | } |
| 76 | fn get_duration(&self) -> u64 { 0 } |
| 77 | } |
| 78 | |
| 79 | impl<'a> NAOptionHandler for BMVDemuxer<'a> { |
| 80 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 81 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 82 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 83 | } |
| 84 | |
| 85 | impl<'a> BMVDemuxer<'a> { |
| 86 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 87 | Self { |
| 88 | src: io, |
| 89 | vid_id: 0, |
| 90 | aud_id: 0, |
| 91 | vpos: 0, |
| 92 | apos: 0, |
| 93 | pkt_buf: Vec::with_capacity(1), |
| 94 | } |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | pub struct BMVDemuxerCreator { } |
| 99 | |
| 100 | impl DemuxerCreator for BMVDemuxerCreator { |
| 101 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
| 102 | Box::new(BMVDemuxer::new(br)) |
| 103 | } |
| 104 | fn get_name(&self) -> &'static str { "bmv" } |
| 105 | } |
| 106 | |
| 107 | struct BMV3Demuxer<'a> { |
| 108 | src: &'a mut ByteReader<'a>, |
| 109 | vid_id: usize, |
| 110 | aud_id: usize, |
| 111 | vpos: u64, |
| 112 | apos: u64, |
| 113 | asize: usize, |
| 114 | ablob: usize, |
| 115 | pkt_buf: Vec<NAPacket>, |
| 116 | } |
| 117 | |
| 118 | impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> { |
| 119 | #[allow(unused_variables)] |
| 120 | #[allow(clippy::cast_lossless)] |
| 121 | fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
| 122 | let src = &mut self.src; |
| 123 | |
| 124 | let mut magic = [0u8; 4]; |
| 125 | src.read_buf(&mut magic)?; |
| 126 | validate!(&magic[0..] == b"BMVi"); |
| 127 | let size = src.read_u32le()?; |
| 128 | validate!(size == 24); |
| 129 | let _slot_size = src.read_u32le()? as usize; |
| 130 | let nframes = src.read_u32le()? as usize; |
| 131 | let _prefetch_slots = src.read_u16le()?; |
| 132 | let _cache_size = src.read_u16le()?; |
| 133 | let fps = src.read_u16le()? as u32; |
| 134 | let audio_size = src.read_u16le()? as usize; |
| 135 | let audio_blob_size = src.read_u16le()? as usize; |
| 136 | let _audio_id = src.read_byte()?; |
| 137 | let _video_id = src.read_byte()?; |
| 138 | let width = src.read_u16le()? as usize; |
| 139 | let height = src.read_u16le()? as usize; |
| 140 | validate!(nframes > 0); |
| 141 | validate!((width > 0) && (width <= 640)); |
| 142 | validate!((height > 0) && (height <= 432)); |
| 143 | validate!((audio_size > audio_blob_size) && (audio_blob_size > 0) && (audio_size % audio_blob_size == 0)); |
| 144 | let mut dta = [0u8; 4]; |
| 145 | src.read_buf(&mut dta)?; |
| 146 | validate!(&dta[0..] == b"DATA"); |
| 147 | let data_size = src.read_u32le()? as usize; |
| 148 | validate!(data_size > 0); |
| 149 | self.asize = audio_size; |
| 150 | self.ablob = audio_blob_size; |
| 151 | |
| 152 | let vhdr = NAVideoInfo::new(width, height, false, RGB565_FORMAT); |
| 153 | let vci = NACodecTypeInfo::Video(vhdr); |
| 154 | let vinfo = NACodecInfo::new("bmv3-video", vci, None); |
| 155 | self.vid_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 256, fps, nframes as u64)).unwrap(); |
| 156 | |
| 157 | let ahdr = NAAudioInfo::new(22050, 2, SND_S16_FORMAT, audio_blob_size); |
| 158 | let ainfo = NACodecInfo::new("bmv3-audio", NACodecTypeInfo::Audio(ahdr), None); |
| 159 | self.aud_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, 22050, 0)).unwrap(); |
| 160 | |
| 161 | self.vpos = 0; |
| 162 | self.apos = 0; |
| 163 | Ok(()) |
| 164 | } |
| 165 | |
| 166 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 167 | if !self.pkt_buf.is_empty() { |
| 168 | return Ok(self.pkt_buf.pop().unwrap()); |
| 169 | } |
| 170 | |
| 171 | loop { |
| 172 | let ctype = self.src.read_byte()?; |
| 173 | if ctype == 0 { // NOP chunk |
| 174 | continue; |
| 175 | } |
| 176 | if ctype == 1 { return Err(DemuxerError::EOF); } |
| 177 | let size = self.src.read_u24le()? as usize; |
| 178 | if size == 0 { continue; } |
| 179 | let asize; |
| 180 | if (ctype & 0x20) != 0 { |
| 181 | if (ctype & 0x40) != 0 { |
| 182 | asize = self.asize - self.ablob; |
| 183 | } else { |
| 184 | asize = self.asize; |
| 185 | } |
| 186 | validate!(asize <= size); |
| 187 | let mut buf: Vec<u8> = vec![0; asize + 1]; |
| 188 | buf[0] = (self.src.tell() & 1) as u8; |
| 189 | self.src.read_buf(&mut buf[1..])?; |
| 190 | |
| 191 | let str = strmgr.get_stream(self.aud_id).unwrap(); |
| 192 | let (tb_num, tb_den) = str.get_timebase(); |
| 193 | let ts = NATimeInfo::new(Some(self.apos), None, None, tb_num, tb_den); |
| 194 | let apkt = NAPacket::new(str, ts, false, buf); |
| 195 | |
| 196 | self.apos += (asize as u64) / 41 * 32; |
| 197 | self.pkt_buf.push(apkt); |
| 198 | } else { |
| 199 | asize = 0; |
| 200 | } |
| 201 | if size == asize { |
| 202 | if !self.pkt_buf.is_empty() { |
| 203 | return Ok(self.pkt_buf.pop().unwrap()); |
| 204 | } else { |
| 205 | continue; |
| 206 | } |
| 207 | } |
| 208 | let mut buf: Vec<u8> = vec![0; size - asize + 1]; |
| 209 | buf[0] = ctype; |
| 210 | self.src.read_buf(&mut buf[1..])?; |
| 211 | |
| 212 | let str = strmgr.get_stream(self.vid_id).unwrap(); |
| 213 | let (tb_num, tb_den) = str.get_timebase(); |
| 214 | let ts = NATimeInfo::new(Some(self.vpos), None, None, tb_num, tb_den); |
| 215 | let pkt = NAPacket::new(str, ts, (ctype & 3) == 3, buf); |
| 216 | |
| 217 | self.vpos += 1; |
| 218 | return Ok(pkt); |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> { |
| 223 | Err(DemuxerError::NotPossible) |
| 224 | } |
| 225 | fn get_duration(&self) -> u64 { 0 } |
| 226 | } |
| 227 | |
| 228 | impl<'a> NAOptionHandler for BMV3Demuxer<'a> { |
| 229 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 230 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 231 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 232 | } |
| 233 | |
| 234 | impl<'a> BMV3Demuxer<'a> { |
| 235 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 236 | Self { |
| 237 | src: io, |
| 238 | vid_id: 0, |
| 239 | aud_id: 0, |
| 240 | vpos: 0, |
| 241 | apos: 0, |
| 242 | asize: 0, |
| 243 | ablob: 0, |
| 244 | pkt_buf: Vec::with_capacity(1), |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | pub struct BMV3DemuxerCreator { } |
| 250 | |
| 251 | impl DemuxerCreator for BMV3DemuxerCreator { |
| 252 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
| 253 | Box::new(BMV3Demuxer::new(br)) |
| 254 | } |
| 255 | fn get_name(&self) -> &'static str { "bmv3" } |
| 256 | } |
| 257 | |
| 258 | #[cfg(test)] |
| 259 | mod test { |
| 260 | use super::*; |
| 261 | use std::fs::File; |
| 262 | |
| 263 | // samples from https://samples.mplayerhq.hu/game-formats/bmv |
| 264 | #[test] |
| 265 | fn test_bmv_demux() { |
| 266 | let mut file = File::open("assets/Game/DW2-MOUSE.BMV").unwrap(); |
| 267 | let mut fr = FileReader::new_read(&mut file); |
| 268 | let mut br = ByteReader::new(&mut fr); |
| 269 | let mut dmx = BMVDemuxer::new(&mut br); |
| 270 | let mut sm = StreamManager::new(); |
| 271 | let mut si = SeekIndex::new(); |
| 272 | dmx.open(&mut sm, &mut si).unwrap(); |
| 273 | loop { |
| 274 | let pktres = dmx.get_frame(&mut sm); |
| 275 | if let Err(e) = pktres { |
| 276 | if (e as i32) == (DemuxerError::EOF as i32) { break; } |
| 277 | panic!("error"); |
| 278 | } |
| 279 | let pkt = pktres.unwrap(); |
| 280 | println!("Got {}", pkt); |
| 281 | } |
| 282 | } |
| 283 | #[test] |
| 284 | fn test_bmv3_demux() { |
| 285 | let mut file = File::open("assets/Game/DW3-Loffnote.bmv").unwrap(); |
| 286 | let mut fr = FileReader::new_read(&mut file); |
| 287 | let mut br = ByteReader::new(&mut fr); |
| 288 | let mut dmx = BMV3Demuxer::new(&mut br); |
| 289 | let mut sm = StreamManager::new(); |
| 290 | let mut si = SeekIndex::new(); |
| 291 | dmx.open(&mut sm, &mut si).unwrap(); |
| 292 | loop { |
| 293 | let pktres = dmx.get_frame(&mut sm); |
| 294 | if let Err(e) = pktres { |
| 295 | if (e as i32) == (DemuxerError::EOF as i32) { break; } |
| 296 | panic!("error"); |
| 297 | } |
| 298 | let pkt = pktres.unwrap(); |
| 299 | println!("Got {}", pkt); |
| 300 | } |
| 301 | } |
| 302 | } |