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vmd: remove leftover unused code
[nihav.git] / nihav-game / src / codecs / vmd.rs
CommitLineData
9895bd7b
KS		 1use nihav_core::codecs::*;
2use nihav_core::io::byteio::*;
979faef7 3use nihav_codec_support::codecs::imaadpcm::*;
9895bd7b 4use std::str::FromStr;
f45dfcf7 5use std::sync::Arc;
9895bd7b
KS		 6
7macro_rules! lz_op {
8 (read; $dst:ident, $dpos:expr, $window:ident, $wpos:expr, $br:expr, $dst_size:expr) => {
9 validate!($dpos < $dst_size);
10 let b = $br.read_byte()?;
11 $dst[$dpos] = b;
12 $dpos += 1;
13 $window[$wpos] = b;
14 $wpos = ($wpos + 1) & 0xFFF;
15 };
16 (copy; $dst:ident, $dpos:expr, $window:ident, $wpos:expr, $off:expr, $dst_size:expr) => {
17 let b = $window[$off];
18 validate!($dpos < $dst_size);
19 $dst[$dpos] = b;
20 $dpos += 1;
21 $window[$wpos] = b;
22 $wpos = ($wpos + 1) & 0xFFF;
23 $off = ($off + 1) & 0xFFF;
24 };
25}
26fn lz_unpack(br: &mut ByteReader, dst: &mut [u8]) -> DecoderResult<()> {
27 let mut window: [u8; 0x1000] = [0x20; 0x1000];
28
29 let dst_size = br.read_u32le()? as usize;
30 validate!(dst_size <= dst.len());
31 let mut pos;
32 let esc_len;
33 if br.peek_u32le()? == 0x56781234 {
34 br.read_skip(4)?;
35 pos = 0x111;
36 esc_len = 15;
37 } else {
38 pos = 0xFEE;
39 esc_len = 255;
40 }
41
42 let mut opos = 0;
43 while br.left() > 0 && opos < dst_size {
44 let op = br.read_byte()?;
45 if (op == 0xFF) && (br.left() > 8) {
46 for _ in 0..8 {
47 lz_op!(read; dst, opos, window, pos, br, dst_size);
48 }
49 } else {
50 for i in 0..8 {
51 if opos == dst_size { break; }
52 let is_literal = ((op >> i) & 1) != 0;
53 if is_literal {
54 lz_op!(read; dst, opos, window, pos, br, dst_size);
55 } else {
56 let b0 = br.read_byte()? as usize;
57 let b1 = br.read_byte()? as usize;
58 let mut off = b0 | ((b1 & 0xF0) << 4);
59 let mut len = b1 & 0xF;
60 if len == esc_len {
61 len = (br.read_byte()? as usize) + esc_len;
62 }
63 for _ in 0..len+3 {
64 lz_op!(copy; dst, opos, window, pos, off, dst_size);
65 }
66 }
67 }
68 }
69 }
70 Ok(())
71}
72
73fn rle_unpack(br: &mut ByteReader, len: usize, dst: &mut [u8]) -> DecoderResult<()> {
74 let end = br.tell() + (len as u64);
75 let mut dpos = 0;
76 if (len & 1) != 0 {
77 dst[dpos] = br.read_byte()?;
78 dpos += 1;
79 }
80 while dpos < dst.len() && br.tell() < end {
81 let val = br.read_byte()?;
82 let len = ((val & 0x7F) as usize) * 2;
83 validate!(dpos + len <= dst.len());
84 if (val & 0x80) != 0 {
85 let dst = &mut dst[dpos..][..len];
86 br.read_buf(dst)?;
87 } else {
771e522a
KS		 88 let val1 = br.read_byte()?;
89 let val2 = br.read_byte()?;
90 for i in (0..len).step_by(2) {
91 dst[dpos + i] = val1;
92 dst[dpos + i + 1] = val2;
9895bd7b
KS		 93 }
94 }
95 dpos += len;
96 }
97 Ok(())
98}
99
100fn decode_frame_data(br: &mut ByteReader, dst: &mut [u8], mut dpos: usize, stride: usize, w: usize, h: usize, method: u8) -> DecoderResult<bool> {
101 match method {
102 1 => {
103 for _ in 0..h {
104 let mut x = 0;
105 while x < w {
106 let val = br.read_byte()?;
107 let len = ((val & 0x7F) as usize) + 1;
108 validate!(x + len <= w);
109 if (val & 0x80) != 0 {
110 let pix = &mut dst[dpos + x..][..len];
111 br.read_buf(pix)?;
112 } // otherwise skip already existing data
113 x += len;
114 }
115 dpos += stride;
116 }
117 Ok(false)
118 },
119 2 => {
120 for _ in 0..h {
121 let pix = &mut dst[dpos..][..w];
122 br.read_buf(pix)?;
123 dpos += stride;
124 }
125 Ok(true)
126 },
127 3 => {
128 for _ in 0..h {
129 let mut x = 0;
130 while x < w {
131 let val = br.read_byte()?;
132 let len = ((val & 0x7F) as usize) + 1;
133 validate!(x + len <= w);
134 if (val & 0x80) != 0 {
135 let pix = &mut dst[dpos + x..][..len];
136 if br.peek_byte()? == 0xFF {
137 br.read_skip(1)?;
138 rle_unpack(br, len, pix)?;
139 } else {
140 br.read_buf(pix)?;
141 }
142 } // otherwise data is already there
143 x += len;
144 }
145 dpos += stride;
146 }
147 Ok(false)
148 },
e69b1148 149 _ => Err(DecoderError::InvalidData),
9895bd7b
KS		 150 }
151}
152
153struct VMDVideoDecoder {
2422d969 154 info: NACodecInfoRef,
9895bd7b
KS		 155 pal: [u8; 768],
156 buf: Vec<u8>,
a5e655a7 157 framebuf: Vec<u8>,
9895bd7b
KS		 158 width: usize,
159 height: usize,
73a1eecd
KS		 160 xoff: usize,
161 yoff: usize,
a5e655a7
KS		 162 is_16bit: bool,
163 is_24bit: bool,
164 ver1: u8,
165 ver2: u8,
9895bd7b
KS		 166}
167
168impl VMDVideoDecoder {
169 fn new() -> Self {
170 Self {
2422d969 171 info: NACodecInfoRef::default(),
9895bd7b
KS		 172 pal: [0; 768],
173 buf: Vec::new(),
a5e655a7 174 framebuf: Vec::new(),
9895bd7b
KS		 175 width: 0,
176 height: 0,
73a1eecd
KS		 177 xoff: 0,
178 yoff: 0,
a5e655a7
KS		 179 is_16bit: false,
180 is_24bit: false,
181 ver1: 0,
182 ver2: 0,
9895bd7b
KS		 183 }
184 }
a5e655a7 185 fn decode_frame(&mut self, br: &mut ByteReader) -> DecoderResult<bool> {
9895bd7b
KS		 186 let frame_x = br.read_u16le()? as usize;
187 let frame_y = br.read_u16le()? as usize;
02c01d44 188 let frame_r = br.read_u16le()? as usize;
9895bd7b
KS		 189 let frame_d = br.read_u16le()? as usize;
190 br.read_skip(1)?;
191 let flags = br.read_byte()?;
a5e655a7 192 let has_pal = (flags & 0x02) != 0 && !self.is_16bit && !self.is_24bit;
02c01d44 193 if (frame_x == 0xFFFF) && (frame_y == 0xFFFF) && (frame_r == 0xFFFF) && (frame_d == 0xFFFF) {
5961ae1d
KS		 194 return Ok(false);
195 }
73a1eecd 196 validate!(frame_x >= self.xoff && frame_y >= self.yoff);
02c01d44
KS		 197 validate!(frame_r >= frame_x && frame_d >= frame_y);
198 validate!(frame_r - self.xoff < self.width && frame_d - self.yoff < self.height);
9895bd7b
KS		 199
200 if has_pal {
201 br.read_skip(2)?;
202 for e in self.pal.iter_mut() {
203 let val = br.read_byte()?;
204 *e = (val << 2) | (val >> 4);
205 }
206 }
207
9895bd7b
KS		 208 if br.left() == 0 { return Ok(false); }
209
a5e655a7
KS		 210 let bpp = if (!self.is_16bit && !self.is_24bit) || self.ver1 < 2 {
211 1
212 } else if self.is_16bit {
213 2
214 } else {
215 3
216 };
02c01d44 217 let w = (frame_r + 1 - frame_x) * bpp;
9895bd7b 218 let h = frame_d + 1 - frame_y;
a5e655a7
KS		 219 let stride = self.width;
220 let dpos = (frame_x - self.xoff) * bpp + (frame_y - self.yoff) * stride;
9895bd7b
KS		 221
222 let method = br.read_byte()?;
223 let is_intra;
224 if (method & 0x80) != 0 {
e69b1148 225 validate!(!self.buf.is_empty());
9895bd7b
KS		 226 lz_unpack(br, &mut self.buf)?;
227 let mut mr = MemoryReader::new_read(&self.buf);
228 let mut buf_br = ByteReader::new(&mut mr);
a5e655a7 229 is_intra = decode_frame_data(&mut buf_br, &mut self.framebuf, dpos, stride, w, h, method & 0x7F)?;
9895bd7b 230 } else {
a5e655a7 231 is_intra = decode_frame_data(br, &mut self.framebuf, dpos, stride, w, h, method & 0x7F)?;
9895bd7b
KS		 232 }
233 Ok(is_intra && frame_x == 0 && frame_y == 0 && w == self.width && h == self.height)
234 }
235}
236
a5e655a7
KS		 237const RGB555_FORMAT: NAPixelFormaton = NAPixelFormaton { model: ColorModel::RGB(RGBSubmodel::RGB), components: 3,
238 comp_info: [
239 Some(NAPixelChromaton{ h_ss: 0, v_ss: 0, packed: true, depth: 5, shift: 10, comp_offs: 0, next_elem: 2 }),
240 Some(NAPixelChromaton{ h_ss: 0, v_ss: 0, packed: true, depth: 5, shift: 5, comp_offs: 1, next_elem: 2 }),
241 Some(NAPixelChromaton{ h_ss: 0, v_ss: 0, packed: true, depth: 5, shift: 0, comp_offs: 2, next_elem: 2 }),
242 None, None],
243 elem_size: 2, be: false, alpha: false, palette: false };
244
9895bd7b 245impl NADecoder for VMDVideoDecoder {
01613464 246 fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
9895bd7b
KS		 247 if let NACodecTypeInfo::Video(vinfo) = info.get_properties() {
248 self.width = vinfo.get_width();
249 self.height = vinfo.get_height();
9895bd7b
KS		 250 validate!(info.get_extradata().is_some());
251
252 if let Some(ref edata) = info.get_extradata() {
253 validate!(edata.len() == 0x330);
254 let unp_size = read_u32le(&edata[800..])? as usize;
ed6c9f8a 255 validate!(unp_size < self.width * self.height * 4 + 64); // just for sanity
9895bd7b
KS		 256 self.buf.resize(unp_size, 0);
257 for i in 0..768 {
258 let el = edata[28 + i];
259 self.pal[i] = (el << 2) | (el >> 4);
260 }
73a1eecd
KS		 261 self.xoff = read_u16le(&edata[8..])? as usize;
262 self.yoff = read_u16le(&edata[10..])? as usize;
a5e655a7
KS		 263 self.ver1 = edata[2];
264 self.ver2 = edata[4];
265 } else {
266 unreachable!();
9895bd7b 267 }
a5e655a7
KS		 268 let (disp_width, fmt) = if self.ver2 < 5 {
269 (self.width, PAL8_FORMAT)
270 } else if self.ver2 < 13 {
271 self.is_24bit = true;
272 if self.ver1 >= 2 {
273 self.width *= 3;
274 }
275 validate!(self.width % 3 == 0);
276 (self.width / 3, RGB24_FORMAT)
277 } else {
278 self.is_16bit = true;
279 if self.ver1 >= 2 {
280 self.width *= 2;
281 }
282 (self.width / 2, RGB555_FORMAT)
283 };
284 self.framebuf = vec!(0; self.width * self.height);
285
286 let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(disp_width, self.height, false, fmt));
287 self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref();
9895bd7b
KS		 288
289 Ok(())
290 } else {
291 Err(DecoderError::InvalidData)
292 }
293 }
01613464 294 fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
9895bd7b
KS		 295 let src = pkt.get_buffer();
296 validate!(src.len() >= 10);
297
298 let mut mr = MemoryReader::new_read(&src);
299 let mut br = ByteReader::new(&mut mr);
300
a5e655a7
KS		 301 let is_intra = self.decode_frame(&mut br)?;
302
303 let bufinfo = alloc_video_buffer(self.info.get_properties().get_video_info().unwrap(), 4)?;
304 let videobuf;
305 if !self.is_16bit {
306 let mut buf = bufinfo.get_vbuf().unwrap();
307 let stride = buf.get_stride(0);
308 let paloff = buf.get_offset(1);
309 let data = buf.get_data_mut().unwrap();
310 for (inrow, outrow) in self.framebuf.chunks(self.width).zip(data.chunks_mut(stride)) {
311 (&mut outrow[..self.width]).copy_from_slice(inrow);
312 }
313 if !self.is_24bit {
314 (&mut data[paloff..][..768]).copy_from_slice(&self.pal);
315 }
316 videobuf = if !self.is_24bit { NABufferType::Video(buf) } else { NABufferType::VideoPacked(buf) };
9895bd7b 317 } else {
a5e655a7
KS		 318 let mut buf = bufinfo.get_vbuf16().unwrap();
319 let stride = buf.get_stride(0);
320 let data = buf.get_data_mut().unwrap();
321 for (inrow, outrow) in self.framebuf.chunks(self.width).zip(data.chunks_mut(stride)) {
322 for i in (0..self.width).step_by(2) {
323 outrow[i >> 1] = read_u16le(&inrow[i..])?;
324 }
325 }
326 videobuf = NABufferType::Video16(buf);
9895bd7b
KS		 327 }
328
a5e655a7 329 let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), videobuf);
9895bd7b
KS		 330 frm.set_keyframe(is_intra);
331 frm.set_frame_type(if is_intra { FrameType::I } else { FrameType::P });
171860fc 332 Ok(frm.into_ref())
9895bd7b 333 }
f9be4e75 334 fn flush(&mut self) {
f9be4e75 335 }
9895bd7b
KS		 336}
337
338
08a1fab7 339pub fn get_decoder_video() -> Box<dyn NADecoder + Send> {
9895bd7b
KS		 340 Box::new(VMDVideoDecoder::new())
341}
342
f45dfcf7
KS		 343#[derive(Clone,Copy,PartialEq)]
344enum VMDAudioMode {
345 U8,
346 DPCM,
347 StereoDPCM,
979faef7 348 ADPCM,
f45dfcf7
KS		 349}
350
9895bd7b
KS		 351struct VMDAudioDecoder {
352 ainfo: NAAudioInfo,
f45dfcf7 353 info: Arc<NACodecInfo>,
9895bd7b 354 chmap: NAChannelMap,
9895bd7b
KS		 355 blk_align: usize,
356 blk_size: usize,
f45dfcf7
KS		 357 mode: VMDAudioMode,
358 pred: [i32; 2],
359 last_byte: Option<u8>,
360 is_odd: bool,
361 ch: usize,
9895bd7b
KS		 362}
363
364const SOL_AUD_STEPS16: [i16; 128] = [
365 0x00, 0x08, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60,
366 0x70, 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0,
367 0xF0, 0x100, 0x110, 0x120, 0x130, 0x140, 0x150, 0x160,
368 0x170, 0x180, 0x190, 0x1A0, 0x1B0, 0x1C0, 0x1D0, 0x1E0,
369 0x1F0, 0x200, 0x208, 0x210, 0x218, 0x220, 0x228, 0x230,
370 0x238, 0x240, 0x248, 0x250, 0x258, 0x260, 0x268, 0x270,
371 0x278, 0x280, 0x288, 0x290, 0x298, 0x2A0, 0x2A8, 0x2B0,
372 0x2B8, 0x2C0, 0x2C8, 0x2D0, 0x2D8, 0x2E0, 0x2E8, 0x2F0,
373 0x2F8, 0x300, 0x308, 0x310, 0x318, 0x320, 0x328, 0x330,
374 0x338, 0x340, 0x348, 0x350, 0x358, 0x360, 0x368, 0x370,
375 0x378, 0x380, 0x388, 0x390, 0x398, 0x3A0, 0x3A8, 0x3B0,
376 0x3B8, 0x3C0, 0x3C8, 0x3D0, 0x3D8, 0x3E0, 0x3E8, 0x3F0,
377 0x3F8, 0x400, 0x440, 0x480, 0x4C0, 0x500, 0x540, 0x580,
378 0x5C0, 0x600, 0x640, 0x680, 0x6C0, 0x700, 0x740, 0x780,
379 0x7C0, 0x800, 0x900, 0xA00, 0xB00, 0xC00, 0xD00, 0xE00,
380 0xF00, 0x1000, 0x1400, 0x1800, 0x1C00, 0x2000, 0x3000, 0x4000
381];
382
383impl VMDAudioDecoder {
384 fn new() -> Self {
385 Self {
386 ainfo: NAAudioInfo::new(0, 1, SND_S16P_FORMAT, 0),
f45dfcf7 387 info: NACodecInfo::new_dummy(),
9895bd7b 388 chmap: NAChannelMap::new(),
9895bd7b
KS		 389 blk_align: 0,
390 blk_size: 0,
f45dfcf7
KS		 391 mode: VMDAudioMode::U8,
392 pred: [0; 2],
393 last_byte: None,
394 is_odd: false,
395 ch: 0,
9895bd7b
KS		 396 }
397 }
398 fn decode_16bit(&self, dst: &mut [i16], off1: usize, br: &mut ByteReader, nblocks: usize, mut mask: u32) -> DecoderResult<()> {
399 let channels = self.chmap.num_channels();
400 let mut off = [0, off1];
401 for _ in 0..nblocks {
402 if (mask & 1) != 0 {
403 for ch in 0..channels {
404 for i in 0..self.blk_align {
405 dst[off[ch] + i] = 0;
406 }
407 off[ch] += self.blk_align;
408 }
409 } else {
410 let mut pred: [i32; 2] = [0; 2];
411 for ch in 0..channels {
e69b1148 412 pred[ch] = i32::from(br.read_u16le()?);
9895bd7b
KS		 413 dst[off[ch]] = pred[ch] as i16;
414 off[ch] += 1;
415 }
416 let mut ch = 0;
417 let flip_ch = if channels == 2 { 1 } else { 0 };
aa7e65d2 418 for _ in channels..self.blk_align*channels {
f45dfcf7 419 pred[ch] = Self::pred16(pred[ch], br.read_byte()?);
9895bd7b
KS		 420 //pred[ch] = pred[ch].max(-32768).min(32767);
421 dst[off[ch]] = pred[ch] as i16;
422 off[ch] += 1;
423 ch ^= flip_ch;
424 }
425 }
426 mask >>= 1;
427 }
428 validate!(br.left() == 0);
429 Ok(())
430 }
f45dfcf7
KS		 431 fn pred16(pred: i32, val: u8) -> i32 {
432 if (val & 0x80) != 0 {
433 pred - i32::from(SOL_AUD_STEPS16[(val & 0x7F) as usize])
434 } else {
435 pred + i32::from(SOL_AUD_STEPS16[(val & 0x7F) as usize])
436 }
437 }
9895bd7b
KS		 438}
439
440impl NADecoder for VMDAudioDecoder {
01613464 441 fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
9895bd7b
KS		 442 if let NACodecTypeInfo::Audio(ainfo) = info.get_properties() {
443 let fmt;
f45dfcf7
KS		 444 let channels = ainfo.get_channels() as usize;
445 let edata = info.get_extradata();
446 let flags = if let Some(ref buf) = edata {
447 validate!(buf.len() >= 2);
448 (buf[0] as u16) | ((buf[1] as u16) << 8)
449 } else {
450 0
451 };
452 validate!((channels == 1) ^ ((flags & 0x8200) != 0));
9895bd7b 453 if ainfo.get_format().get_bits() == 8 {
9895bd7b 454 self.blk_size = ainfo.get_block_len();
f45dfcf7
KS		 455 self.blk_align = ainfo.get_block_len() / channels;
456 if (flags & 0x8000) == 0 {
457 fmt = SND_U8_FORMAT;
458 self.mode = VMDAudioMode::U8;
459 } else {
460 fmt = SND_S16_FORMAT;
461 self.mode = VMDAudioMode::StereoDPCM;
462 self.is_odd = (channels == 2) && ((self.blk_size & 1) != 0);
463 }
9895bd7b
KS		 464 } else {
465 fmt = SND_S16P_FORMAT;
aa7e65d2 466 self.blk_align = ainfo.get_block_len();
979faef7
KS		 467 if (flags & 0x10) == 0 {
468 self.blk_size = (ainfo.get_block_len() + 1) * channels;
469 self.mode = VMDAudioMode::DPCM;
470 } else {
3e91c67b 471 self.blk_size = (ainfo.get_block_len() + 1) / 2 + 3;
979faef7
KS		 472 self.mode = VMDAudioMode::ADPCM;
473 }
9895bd7b 474 };
9895bd7b 475 self.ainfo = NAAudioInfo::new(ainfo.get_sample_rate(), ainfo.get_channels(), fmt, ainfo.get_block_len());
f45dfcf7
KS		 476 self.info = info.replace_info(NACodecTypeInfo::Audio(self.ainfo.clone()));
477 self.chmap = NAChannelMap::from_str(if channels == 1 { "C" } else { "L,R" }).unwrap();
9895bd7b
KS		 478 Ok(())
479 } else {
480 Err(DecoderError::InvalidData)
481 }
482 }
01613464 483 fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
9895bd7b
KS		 484 let info = pkt.get_stream().get_info();
485 if let NACodecTypeInfo::Audio(_) = info.get_properties() {
486 let pktbuf = pkt.get_buffer();
487 validate!(pktbuf.len() >= 6);
488 let mut mr = MemoryReader::new_read(&pktbuf);
489 let mut br = ByteReader::new(&mut mr);
490 let blk_type = br.read_byte()?;
491 br.read_skip(9)?;
492 let mask;
493 let nblocks;
494 if blk_type == 2 { // initial
495 mask = br.read_u32le()?;
496 nblocks = (mask.count_ones() as usize) + (pktbuf.len() - 14) / self.blk_size;
497 } else if blk_type == 3 { // silence
498 mask = 1;
499 nblocks = 1;
500 } else {
501 mask = 0;
502 nblocks = 1;
503 }
f45dfcf7
KS		 504 let mut samples = nblocks * self.blk_align;
505 if self.mode == VMDAudioMode::StereoDPCM && self.is_odd {
506 samples += (nblocks + if self.last_byte.is_some() { 1 } else { 0 }) / 2;
507 }
9895bd7b 508 let abuf = alloc_audio_buffer(self.ainfo, samples, self.chmap.clone())?;
f45dfcf7
KS		 509 match self.mode {
510 VMDAudioMode::DPCM => {
511 let mut adata = abuf.get_abuf_i16().unwrap();
512 let off1 = adata.get_offset(1);
513 let mut dst = adata.get_data_mut().unwrap();
514 self.decode_16bit(&mut dst, off1, &mut br, nblocks, mask)?;
515 },
516 VMDAudioMode::U8 => {
517 let mut adata = abuf.get_abuf_u8().unwrap();
518 let dst = adata.get_data_mut().unwrap();
519 let mut doff = 0;
520 let mut mask = mask;
521 let channels = self.chmap.num_channels();
522 for _ in 0..nblocks {
523 if (mask & 1) != 0 {
524 for i in 0..self.blk_align * channels {
525 dst[doff + i] = 128;
526 }
527 } else if channels == 1 {
528 for i in 0..self.blk_size {
529 dst[doff + i] = br.read_byte()?;
530 }
531 } else {
e63a7720 532 unreachable!();
9895bd7b 533 }
f45dfcf7
KS		 534 doff += self.blk_align * channels;
535 mask >>= 1;
536 }
537 },
538 VMDAudioMode::StereoDPCM => {
539 let mut adata = abuf.get_abuf_i16().unwrap();
540 let dst = adata.get_data_mut().unwrap();
541 let mut doff = 0;
542 let mut mask = mask;
543 let mut ch = self.ch;
544 for _ in 0..nblocks {
545 let put_sample = self.last_byte.is_some();
546 if let (true, Some(val)) = (self.is_odd, self.last_byte) {
547 self.pred[ch] = Self::pred16(self.pred[ch], val);
548 dst[doff] = self.pred[ch] as i16;
549 doff += 1;
550 ch ^= 1;
551 self.last_byte = None;
9895bd7b 552 }
f45dfcf7
KS		 553 if (mask & 1) != 0 {
554 for i in 0..self.blk_align {
555 dst[doff + i * 2 + 0] = self.pred[ch] as i16;
556 dst[doff + i * 2 + 1] = self.pred[ch ^ 1] as i16;
557 }
558 if self.is_odd {
559 if put_sample {
560 dst[doff + self.blk_align * 2] = self.pred[ch] as i16;
561 doff += 1;
562 ch ^= 1;
563 } else {
564 self.last_byte = Some(0);
565 }
566 }
567 } else {
568 for i in 0..self.blk_align {
569 self.pred[ch] = Self::pred16(self.pred[ch], br.read_byte()?);
570 dst[doff + i * 2] = self.pred[ch] as i16;
571 self.pred[ch ^ 1] = Self::pred16(self.pred[ch ^ 1], br.read_byte()?);
572 dst[doff + i * 2 + 1] = self.pred[ch ^ 1] as i16;
573 }
574 if self.is_odd {
575 let val = br.read_byte()?;
576 if put_sample {
577 self.pred[ch] = Self::pred16(self.pred[ch], val);
578 dst[doff + self.blk_align * 2] = self.pred[ch] as i16;
579 doff += 1;
580 ch ^= 1;
581 } else {
582 self.last_byte = Some(val);
583 }
aa7e65d2
KS		 584 }
585 }
f45dfcf7
KS		 586 doff += self.blk_align * 2;
587 mask >>= 1;
9895bd7b 588 }
f45dfcf7
KS		 589 self.ch = ch;
590 },
979faef7
KS		 591 VMDAudioMode::ADPCM => {
592 let mut adata = abuf.get_abuf_i16().unwrap();
593 let dst = adata.get_data_mut().unwrap();
594 let mut doff = 0;
595 if self.chmap.num_channels() == 1 {
596 let mut mask = mask;
597 let mut ima = IMAState::new();
598 for _ in 0..nblocks {
599 if (mask & 1) != 0 {
3e91c67b 600 doff += self.blk_align;
979faef7
KS		 601 mask >>= 1;
602 continue;
603 }
604 let pred = br.read_u16le()? as i16;
605 let step = br.read_byte()?;
606 validate!((step as usize) < IMA_STEP_TABLE.len());
607 ima.reset(pred, step);
3e91c67b
KS		 608 let mut b = 0;
609 for i in 0..self.blk_align {
610 if (i & 1) == 0 {
611 b = br.read_byte()?;
612 dst[doff] = ima.expand_sample(b >> 4);
613 } else {
614 dst[doff] = ima.expand_sample(b & 0xF);
615 }
979faef7
KS		 616 doff += 1;
617 }
618 mask >>= 1;
619 }
620 } else {
621 return Err(DecoderError::InvalidData);
622 }
623 },
f45dfcf7 624 };
9895bd7b 625
f45dfcf7 626 let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), abuf);
9895bd7b
KS		 627 frm.set_duration(Some(samples as u64));
628 frm.set_keyframe(true);
171860fc 629 Ok(frm.into_ref())
9895bd7b
KS		 630 } else {
631 Err(DecoderError::InvalidData)
632 }
633 }
f9be4e75
KS		 634 fn flush(&mut self) {
635 }
9895bd7b
KS		 636}
637
08a1fab7 638pub fn get_decoder_audio() -> Box<dyn NADecoder + Send> {
9895bd7b
KS		 639 Box::new(VMDAudioDecoder::new())
640}
641
642#[cfg(test)]
643mod test {
644 use nihav_core::codecs::RegisteredDecoders;
645 use nihav_core::demuxers::RegisteredDemuxers;
ce742854 646 use nihav_codec_support::test::dec_video::*;
e64739f8
KS		 647 use crate::game_register_all_codecs;
648 use crate::game_register_all_demuxers;
9895bd7b
KS		 649 #[test]
650 fn test_vmd_video() {
651 let mut dmx_reg = RegisteredDemuxers::new();
652 game_register_all_demuxers(&mut dmx_reg);
653 let mut dec_reg = RegisteredDecoders::new();
654 game_register_all_codecs(&mut dec_reg);
655
fe435580
KS		 656 test_decoding("vmd", "vmd-video", "assets/Game/2832.VMD", Some(10), &dmx_reg, &dec_reg,
657 ExpectedTestResult::MD5Frames(vec![
658 [0xd29e0214, 0xf38ad154, 0xccbd381f, 0x3de1109c],
659 [0x904074eb, 0x202b1d6f, 0xe3f68538, 0xf0db641c],
660 [0x9c8b1b6c, 0xe205b8dc, 0xbfb07406, 0x993ace41],
661 [0x71ce4220, 0x8747fd05, 0x854dd86d, 0x2664cde5],
662 [0x3bc65fa4, 0xebb95292, 0xe0a0fea6, 0x0acfdea1],
663 [0x33982045, 0x8d11b69b, 0xac254a75, 0x63896a21],
664 [0xa667db33, 0x90e122d3, 0x2243da15, 0xcc4bffd2],
665 [0x518621c1, 0xb91412bc, 0x12312869, 0x141ef647],
666 [0x3069977e, 0x68fd3fa0, 0x2bfdb00d, 0x1e694684],
667 [0x246c12aa, 0x15137fb0, 0xa4b0fc3e, 0x626a2676],
668 [0x72cce7e3, 0x98506d04, 0xd4d8bbaf, 0x3cc5e32d]]));
9895bd7b
KS		 669 }
670 #[test]
40e5d0b8
KS		 671 fn test_vmd_video_16bpp() {
672 let mut dmx_reg = RegisteredDemuxers::new();
673 game_register_all_demuxers(&mut dmx_reg);
674 let mut dec_reg = RegisteredDecoders::new();
675 game_register_all_codecs(&mut dec_reg);
676
677 test_decoding("vmd", "vmd-video", "assets/Game/HLP1000.VMD", Some(10), &dmx_reg, &dec_reg,
678 ExpectedTestResult::MD5Frames(vec![
679 [0x03d77d51, 0x8670ae24, 0x86184cc8, 0x9c928700],
680 [0xf4796f1b, 0x0f75a120, 0x62056509, 0xc83f1a2c],
681 [0xd9e6db4d, 0x7af82082, 0xac6a335c, 0x19b8438f],
682 [0x03d77d51, 0x8670ae24, 0x86184cc8, 0x9c928700],
683 [0xd9e6db4d, 0x7af82082, 0xac6a335c, 0x19b8438f],
684 [0xf4796f1b, 0x0f75a120, 0x62056509, 0xc83f1a2c]]));
685 }
686 #[test]
687 fn test_vmd_video_24bpp() {
688 let mut dmx_reg = RegisteredDemuxers::new();
689 game_register_all_demuxers(&mut dmx_reg);
690 let mut dec_reg = RegisteredDecoders::new();
691 game_register_all_codecs(&mut dec_reg);
692
693 test_decoding("vmd", "vmd-video", "assets/Game/02C.VMD", None, &dmx_reg, &dec_reg,
694 ExpectedTestResult::MD5([0xb580782c, 0xd7fb98c0, 0xaf9b83cc, 0xaea0846b]));
695 }
696 #[test]
fe435580 697 fn test_vmd_audio_u8() {
9895bd7b
KS		 698 let mut dmx_reg = RegisteredDemuxers::new();
699 game_register_all_demuxers(&mut dmx_reg);
700 let mut dec_reg = RegisteredDecoders::new();
701 game_register_all_codecs(&mut dec_reg);
702
fe435580
KS		 703 test_decoding("vmd", "vmd-audio", "assets/Game/1491.VMD", None, &dmx_reg, &dec_reg,
704 ExpectedTestResult::MD5([0x75037601, 0xbc7b3976, 0x6e1c948b, 0xf05a3d6c]));
705 }
706 #[test]
707 fn test_vmd_audio_s16_old() {
708 let mut dmx_reg = RegisteredDemuxers::new();
709 game_register_all_demuxers(&mut dmx_reg);
710 let mut dec_reg = RegisteredDecoders::new();
711 game_register_all_codecs(&mut dec_reg);
712
713 test_decoding("vmd", "vmd-audio", "assets/Game/2832.VMD", None, &dmx_reg, &dec_reg,
714 ExpectedTestResult::MD5([0x32dcdf0e, 0xee058684, 0x43ed5bf1, 0x2ff18b5a]));
715 }
716 #[test]
717 fn test_vmd_audio_s16_new() {
718 let mut dmx_reg = RegisteredDemuxers::new();
719 game_register_all_demuxers(&mut dmx_reg);
720 let mut dec_reg = RegisteredDecoders::new();
721 game_register_all_codecs(&mut dec_reg);
722
723 test_decoding("vmd", "vmd-audio", "assets/Game/1000.VMD", None, &dmx_reg, &dec_reg,
724 ExpectedTestResult::MD5([0xc36215d3, 0x96530a80, 0x89f1fa8e, 0x49da302b]));
9895bd7b 725 }
40e5d0b8
KS		 726 #[test]
727 fn test_vmd_audio_ima_adpcm() {
728 let mut dmx_reg = RegisteredDemuxers::new();
729 game_register_all_demuxers(&mut dmx_reg);
730 let mut dec_reg = RegisteredDecoders::new();
731 game_register_all_codecs(&mut dec_reg);
732
733 test_decoding("vmd", "vmd-audio", "assets/Game/HLP1000.VMD", None, &dmx_reg, &dec_reg,
734 ExpectedTestResult::MD5([0x76a00405, 0xe4e5378d, 0x495b2a68, 0x4dffe042]));
735 }
9895bd7b 736}
NihAV is a research multimedia framework