Commit | Line | Data |
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9895bd7b KS |
1 | use nihav_core::codecs::*; |
2 | use nihav_core::io::byteio::*; | |
b4d5b851 | 3 | use nihav_codec_support::codecs::HAMShuffler; |
9895bd7b | 4 | use std::str::FromStr; |
f45dfcf7 | 5 | use std::sync::Arc; |
9895bd7b KS |
6 | |
7 | macro_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 | } | |
26 | fn 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 | ||
73 | fn 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 | ||
100 | fn 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 | ||
153 | struct VMDVideoDecoder { | |
2422d969 | 154 | info: NACodecInfoRef, |
9895bd7b KS |
155 | pal: [u8; 768], |
156 | buf: Vec<u8>, | |
157 | width: usize, | |
158 | height: usize, | |
73a1eecd KS |
159 | xoff: usize, |
160 | yoff: usize, | |
9895bd7b KS |
161 | hams: HAMShuffler, |
162 | } | |
163 | ||
164 | impl VMDVideoDecoder { | |
165 | fn new() -> Self { | |
166 | Self { | |
2422d969 | 167 | info: NACodecInfoRef::default(), |
9895bd7b KS |
168 | pal: [0; 768], |
169 | buf: Vec::new(), | |
170 | width: 0, | |
171 | height: 0, | |
73a1eecd KS |
172 | xoff: 0, |
173 | yoff: 0, | |
9895bd7b KS |
174 | hams: HAMShuffler::default(), |
175 | } | |
176 | } | |
177 | fn decode_frame(&mut self, br: &mut ByteReader, buf: &mut NAVideoBuffer<u8>) -> DecoderResult<bool> { | |
178 | let paloff = buf.get_offset(1); | |
179 | let stride = buf.get_stride(0); | |
1a967e6b | 180 | let data = buf.get_data_mut().unwrap(); |
9895bd7b KS |
181 | let dst = data.as_mut_slice(); |
182 | ||
183 | let frame_x = br.read_u16le()? as usize; | |
184 | let frame_y = br.read_u16le()? as usize; | |
185 | let frame_l = br.read_u16le()? as usize; | |
186 | let frame_d = br.read_u16le()? as usize; | |
187 | br.read_skip(1)?; | |
188 | let flags = br.read_byte()?; | |
189 | let has_pal = (flags & 0x02) != 0; | |
5961ae1d KS |
190 | if (frame_x == 0xFFFF) && (frame_y == 0xFFFF) && (frame_l == 0xFFFF) && (frame_d == 0xFFFF) { |
191 | return Ok(false); | |
192 | } | |
73a1eecd | 193 | validate!(frame_x >= self.xoff && frame_y >= self.yoff); |
9895bd7b | 194 | validate!(frame_l >= frame_x && frame_d >= frame_y); |
73a1eecd | 195 | validate!(frame_l - self.xoff < self.width && frame_d - self.yoff < self.height); |
9895bd7b KS |
196 | |
197 | if has_pal { | |
198 | br.read_skip(2)?; | |
199 | for e in self.pal.iter_mut() { | |
200 | let val = br.read_byte()?; | |
201 | *e = (val << 2) | (val >> 4); | |
202 | } | |
203 | } | |
204 | ||
205 | let dpal = &mut dst[paloff..][..768]; | |
206 | dpal.copy_from_slice(&self.pal[0..]); | |
207 | ||
208 | if br.left() == 0 { return Ok(false); } | |
209 | ||
210 | let w = frame_l + 1 - frame_x; | |
211 | let h = frame_d + 1 - frame_y; | |
73a1eecd | 212 | let dpos = frame_x - self.xoff + (frame_y - self.yoff) * stride; |
9895bd7b KS |
213 | |
214 | let method = br.read_byte()?; | |
215 | let is_intra; | |
216 | if (method & 0x80) != 0 { | |
e69b1148 | 217 | validate!(!self.buf.is_empty()); |
9895bd7b KS |
218 | lz_unpack(br, &mut self.buf)?; |
219 | let mut mr = MemoryReader::new_read(&self.buf); | |
220 | let mut buf_br = ByteReader::new(&mut mr); | |
221 | is_intra = decode_frame_data(&mut buf_br, dst, dpos, stride, w, h, method & 0x7F)?; | |
222 | } else { | |
223 | is_intra = decode_frame_data(br, dst, dpos, stride, w, h, method & 0x7F)?; | |
224 | } | |
225 | Ok(is_intra && frame_x == 0 && frame_y == 0 && w == self.width && h == self.height) | |
226 | } | |
227 | } | |
228 | ||
229 | impl NADecoder for VMDVideoDecoder { | |
01613464 | 230 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { |
9895bd7b KS |
231 | if let NACodecTypeInfo::Video(vinfo) = info.get_properties() { |
232 | self.width = vinfo.get_width(); | |
233 | self.height = vinfo.get_height(); | |
234 | let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(self.width, self.height, false, PAL8_FORMAT)); | |
2422d969 | 235 | self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref(); |
9895bd7b KS |
236 | validate!(info.get_extradata().is_some()); |
237 | ||
238 | if let Some(ref edata) = info.get_extradata() { | |
239 | validate!(edata.len() == 0x330); | |
240 | let unp_size = read_u32le(&edata[800..])? as usize; | |
ed6c9f8a | 241 | validate!(unp_size < self.width * self.height * 4 + 64); // just for sanity |
9895bd7b KS |
242 | self.buf.resize(unp_size, 0); |
243 | for i in 0..768 { | |
244 | let el = edata[28 + i]; | |
245 | self.pal[i] = (el << 2) | (el >> 4); | |
246 | } | |
73a1eecd KS |
247 | self.xoff = read_u16le(&edata[8..])? as usize; |
248 | self.yoff = read_u16le(&edata[10..])? as usize; | |
9895bd7b KS |
249 | } |
250 | ||
251 | Ok(()) | |
252 | } else { | |
253 | Err(DecoderError::InvalidData) | |
254 | } | |
255 | } | |
01613464 | 256 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { |
9895bd7b KS |
257 | let src = pkt.get_buffer(); |
258 | validate!(src.len() >= 10); | |
259 | ||
260 | let mut mr = MemoryReader::new_read(&src); | |
261 | let mut br = ByteReader::new(&mut mr); | |
262 | ||
263 | let mut buf; | |
264 | let bufret = self.hams.clone_ref(); | |
265 | if let Some(bbuf) = bufret { | |
266 | buf = bbuf; | |
267 | } else { | |
e69b1148 | 268 | let bufinfo = alloc_video_buffer(self.info.get_properties().get_video_info().unwrap(), 4)?; |
9895bd7b KS |
269 | buf = bufinfo.get_vbuf().unwrap(); |
270 | self.hams.add_frame(buf); | |
271 | buf = self.hams.get_output_frame().unwrap(); | |
272 | } | |
273 | ||
274 | let is_intra = self.decode_frame(&mut br, &mut buf)?; | |
275 | ||
276 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), NABufferType::Video(buf)); | |
277 | frm.set_keyframe(is_intra); | |
278 | frm.set_frame_type(if is_intra { FrameType::I } else { FrameType::P }); | |
171860fc | 279 | Ok(frm.into_ref()) |
9895bd7b | 280 | } |
f9be4e75 KS |
281 | fn flush(&mut self) { |
282 | self.hams.clear(); | |
283 | } | |
9895bd7b KS |
284 | } |
285 | ||
286 | ||
08a1fab7 | 287 | pub fn get_decoder_video() -> Box<dyn NADecoder + Send> { |
9895bd7b KS |
288 | Box::new(VMDVideoDecoder::new()) |
289 | } | |
290 | ||
f45dfcf7 KS |
291 | #[derive(Clone,Copy,PartialEq)] |
292 | enum VMDAudioMode { | |
293 | U8, | |
294 | DPCM, | |
295 | StereoDPCM, | |
296 | } | |
297 | ||
9895bd7b KS |
298 | struct VMDAudioDecoder { |
299 | ainfo: NAAudioInfo, | |
f45dfcf7 | 300 | info: Arc<NACodecInfo>, |
9895bd7b | 301 | chmap: NAChannelMap, |
9895bd7b KS |
302 | blk_align: usize, |
303 | blk_size: usize, | |
f45dfcf7 KS |
304 | mode: VMDAudioMode, |
305 | pred: [i32; 2], | |
306 | last_byte: Option<u8>, | |
307 | is_odd: bool, | |
308 | ch: usize, | |
9895bd7b KS |
309 | } |
310 | ||
311 | const SOL_AUD_STEPS16: [i16; 128] = [ | |
312 | 0x00, 0x08, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, | |
313 | 0x70, 0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, | |
314 | 0xF0, 0x100, 0x110, 0x120, 0x130, 0x140, 0x150, 0x160, | |
315 | 0x170, 0x180, 0x190, 0x1A0, 0x1B0, 0x1C0, 0x1D0, 0x1E0, | |
316 | 0x1F0, 0x200, 0x208, 0x210, 0x218, 0x220, 0x228, 0x230, | |
317 | 0x238, 0x240, 0x248, 0x250, 0x258, 0x260, 0x268, 0x270, | |
318 | 0x278, 0x280, 0x288, 0x290, 0x298, 0x2A0, 0x2A8, 0x2B0, | |
319 | 0x2B8, 0x2C0, 0x2C8, 0x2D0, 0x2D8, 0x2E0, 0x2E8, 0x2F0, | |
320 | 0x2F8, 0x300, 0x308, 0x310, 0x318, 0x320, 0x328, 0x330, | |
321 | 0x338, 0x340, 0x348, 0x350, 0x358, 0x360, 0x368, 0x370, | |
322 | 0x378, 0x380, 0x388, 0x390, 0x398, 0x3A0, 0x3A8, 0x3B0, | |
323 | 0x3B8, 0x3C0, 0x3C8, 0x3D0, 0x3D8, 0x3E0, 0x3E8, 0x3F0, | |
324 | 0x3F8, 0x400, 0x440, 0x480, 0x4C0, 0x500, 0x540, 0x580, | |
325 | 0x5C0, 0x600, 0x640, 0x680, 0x6C0, 0x700, 0x740, 0x780, | |
326 | 0x7C0, 0x800, 0x900, 0xA00, 0xB00, 0xC00, 0xD00, 0xE00, | |
327 | 0xF00, 0x1000, 0x1400, 0x1800, 0x1C00, 0x2000, 0x3000, 0x4000 | |
328 | ]; | |
329 | ||
330 | impl VMDAudioDecoder { | |
331 | fn new() -> Self { | |
332 | Self { | |
333 | ainfo: NAAudioInfo::new(0, 1, SND_S16P_FORMAT, 0), | |
f45dfcf7 | 334 | info: NACodecInfo::new_dummy(), |
9895bd7b | 335 | chmap: NAChannelMap::new(), |
9895bd7b KS |
336 | blk_align: 0, |
337 | blk_size: 0, | |
f45dfcf7 KS |
338 | mode: VMDAudioMode::U8, |
339 | pred: [0; 2], | |
340 | last_byte: None, | |
341 | is_odd: false, | |
342 | ch: 0, | |
9895bd7b KS |
343 | } |
344 | } | |
345 | fn decode_16bit(&self, dst: &mut [i16], off1: usize, br: &mut ByteReader, nblocks: usize, mut mask: u32) -> DecoderResult<()> { | |
346 | let channels = self.chmap.num_channels(); | |
347 | let mut off = [0, off1]; | |
348 | for _ in 0..nblocks { | |
349 | if (mask & 1) != 0 { | |
350 | for ch in 0..channels { | |
351 | for i in 0..self.blk_align { | |
352 | dst[off[ch] + i] = 0; | |
353 | } | |
354 | off[ch] += self.blk_align; | |
355 | } | |
356 | } else { | |
357 | let mut pred: [i32; 2] = [0; 2]; | |
358 | for ch in 0..channels { | |
e69b1148 | 359 | pred[ch] = i32::from(br.read_u16le()?); |
9895bd7b KS |
360 | dst[off[ch]] = pred[ch] as i16; |
361 | off[ch] += 1; | |
362 | } | |
363 | let mut ch = 0; | |
364 | let flip_ch = if channels == 2 { 1 } else { 0 }; | |
aa7e65d2 | 365 | for _ in channels..self.blk_align*channels { |
f45dfcf7 | 366 | pred[ch] = Self::pred16(pred[ch], br.read_byte()?); |
9895bd7b KS |
367 | //pred[ch] = pred[ch].max(-32768).min(32767); |
368 | dst[off[ch]] = pred[ch] as i16; | |
369 | off[ch] += 1; | |
370 | ch ^= flip_ch; | |
371 | } | |
372 | } | |
373 | mask >>= 1; | |
374 | } | |
375 | validate!(br.left() == 0); | |
376 | Ok(()) | |
377 | } | |
f45dfcf7 KS |
378 | fn pred16(pred: i32, val: u8) -> i32 { |
379 | if (val & 0x80) != 0 { | |
380 | pred - i32::from(SOL_AUD_STEPS16[(val & 0x7F) as usize]) | |
381 | } else { | |
382 | pred + i32::from(SOL_AUD_STEPS16[(val & 0x7F) as usize]) | |
383 | } | |
384 | } | |
385 | fn cvt_u8(val: u8) -> u8 { | |
6eda3136 | 386 | val ^ 0x80 |
f45dfcf7 | 387 | } |
9895bd7b KS |
388 | } |
389 | ||
390 | impl NADecoder for VMDAudioDecoder { | |
01613464 | 391 | fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> { |
9895bd7b KS |
392 | if let NACodecTypeInfo::Audio(ainfo) = info.get_properties() { |
393 | let fmt; | |
f45dfcf7 KS |
394 | let channels = ainfo.get_channels() as usize; |
395 | let edata = info.get_extradata(); | |
396 | let flags = if let Some(ref buf) = edata { | |
397 | validate!(buf.len() >= 2); | |
398 | (buf[0] as u16) | ((buf[1] as u16) << 8) | |
399 | } else { | |
400 | 0 | |
401 | }; | |
402 | validate!((channels == 1) ^ ((flags & 0x8200) != 0)); | |
9895bd7b | 403 | if ainfo.get_format().get_bits() == 8 { |
9895bd7b | 404 | self.blk_size = ainfo.get_block_len(); |
f45dfcf7 KS |
405 | self.blk_align = ainfo.get_block_len() / channels; |
406 | if (flags & 0x8000) == 0 { | |
407 | fmt = SND_U8_FORMAT; | |
408 | self.mode = VMDAudioMode::U8; | |
409 | } else { | |
410 | fmt = SND_S16_FORMAT; | |
411 | self.mode = VMDAudioMode::StereoDPCM; | |
412 | self.is_odd = (channels == 2) && ((self.blk_size & 1) != 0); | |
413 | } | |
9895bd7b KS |
414 | } else { |
415 | fmt = SND_S16P_FORMAT; | |
f45dfcf7 | 416 | self.blk_size = (ainfo.get_block_len() + 1) * channels; |
aa7e65d2 | 417 | self.blk_align = ainfo.get_block_len(); |
f45dfcf7 | 418 | self.mode = VMDAudioMode::DPCM; |
9895bd7b | 419 | }; |
9895bd7b | 420 | self.ainfo = NAAudioInfo::new(ainfo.get_sample_rate(), ainfo.get_channels(), fmt, ainfo.get_block_len()); |
f45dfcf7 KS |
421 | self.info = info.replace_info(NACodecTypeInfo::Audio(self.ainfo.clone())); |
422 | self.chmap = NAChannelMap::from_str(if channels == 1 { "C" } else { "L,R" }).unwrap(); | |
9895bd7b KS |
423 | Ok(()) |
424 | } else { | |
425 | Err(DecoderError::InvalidData) | |
426 | } | |
427 | } | |
01613464 | 428 | fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> { |
9895bd7b KS |
429 | let info = pkt.get_stream().get_info(); |
430 | if let NACodecTypeInfo::Audio(_) = info.get_properties() { | |
431 | let pktbuf = pkt.get_buffer(); | |
432 | validate!(pktbuf.len() >= 6); | |
433 | let mut mr = MemoryReader::new_read(&pktbuf); | |
434 | let mut br = ByteReader::new(&mut mr); | |
435 | let blk_type = br.read_byte()?; | |
436 | br.read_skip(9)?; | |
437 | let mask; | |
438 | let nblocks; | |
439 | if blk_type == 2 { // initial | |
440 | mask = br.read_u32le()?; | |
441 | nblocks = (mask.count_ones() as usize) + (pktbuf.len() - 14) / self.blk_size; | |
442 | } else if blk_type == 3 { // silence | |
443 | mask = 1; | |
444 | nblocks = 1; | |
445 | } else { | |
446 | mask = 0; | |
447 | nblocks = 1; | |
448 | } | |
f45dfcf7 KS |
449 | let mut samples = nblocks * self.blk_align; |
450 | if self.mode == VMDAudioMode::StereoDPCM && self.is_odd { | |
451 | samples += (nblocks + if self.last_byte.is_some() { 1 } else { 0 }) / 2; | |
452 | } | |
9895bd7b | 453 | let abuf = alloc_audio_buffer(self.ainfo, samples, self.chmap.clone())?; |
f45dfcf7 KS |
454 | match self.mode { |
455 | VMDAudioMode::DPCM => { | |
456 | let mut adata = abuf.get_abuf_i16().unwrap(); | |
457 | let off1 = adata.get_offset(1); | |
458 | let mut dst = adata.get_data_mut().unwrap(); | |
459 | self.decode_16bit(&mut dst, off1, &mut br, nblocks, mask)?; | |
460 | }, | |
461 | VMDAudioMode::U8 => { | |
462 | let mut adata = abuf.get_abuf_u8().unwrap(); | |
463 | let dst = adata.get_data_mut().unwrap(); | |
464 | let mut doff = 0; | |
465 | let mut mask = mask; | |
466 | let channels = self.chmap.num_channels(); | |
467 | for _ in 0..nblocks { | |
468 | if (mask & 1) != 0 { | |
469 | for i in 0..self.blk_align * channels { | |
470 | dst[doff + i] = 128; | |
471 | } | |
472 | } else if channels == 1 { | |
473 | for i in 0..self.blk_size { | |
474 | dst[doff + i] = br.read_byte()?; | |
475 | } | |
476 | } else { | |
477 | for i in 0..self.blk_size { | |
478 | let val = Self::cvt_u8(br.read_byte()?); | |
479 | dst[doff + i] = val; | |
480 | } | |
9895bd7b | 481 | } |
f45dfcf7 KS |
482 | doff += self.blk_align * channels; |
483 | mask >>= 1; | |
484 | } | |
485 | }, | |
486 | VMDAudioMode::StereoDPCM => { | |
487 | let mut adata = abuf.get_abuf_i16().unwrap(); | |
488 | let dst = adata.get_data_mut().unwrap(); | |
489 | let mut doff = 0; | |
490 | let mut mask = mask; | |
491 | let mut ch = self.ch; | |
492 | for _ in 0..nblocks { | |
493 | let put_sample = self.last_byte.is_some(); | |
494 | if let (true, Some(val)) = (self.is_odd, self.last_byte) { | |
495 | self.pred[ch] = Self::pred16(self.pred[ch], val); | |
496 | dst[doff] = self.pred[ch] as i16; | |
497 | doff += 1; | |
498 | ch ^= 1; | |
499 | self.last_byte = None; | |
9895bd7b | 500 | } |
f45dfcf7 KS |
501 | if (mask & 1) != 0 { |
502 | for i in 0..self.blk_align { | |
503 | dst[doff + i * 2 + 0] = self.pred[ch] as i16; | |
504 | dst[doff + i * 2 + 1] = self.pred[ch ^ 1] as i16; | |
505 | } | |
506 | if self.is_odd { | |
507 | if put_sample { | |
508 | dst[doff + self.blk_align * 2] = self.pred[ch] as i16; | |
509 | doff += 1; | |
510 | ch ^= 1; | |
511 | } else { | |
512 | self.last_byte = Some(0); | |
513 | } | |
514 | } | |
515 | } else { | |
516 | for i in 0..self.blk_align { | |
517 | self.pred[ch] = Self::pred16(self.pred[ch], br.read_byte()?); | |
518 | dst[doff + i * 2] = self.pred[ch] as i16; | |
519 | self.pred[ch ^ 1] = Self::pred16(self.pred[ch ^ 1], br.read_byte()?); | |
520 | dst[doff + i * 2 + 1] = self.pred[ch ^ 1] as i16; | |
521 | } | |
522 | if self.is_odd { | |
523 | let val = br.read_byte()?; | |
524 | if put_sample { | |
525 | self.pred[ch] = Self::pred16(self.pred[ch], val); | |
526 | dst[doff + self.blk_align * 2] = self.pred[ch] as i16; | |
527 | doff += 1; | |
528 | ch ^= 1; | |
529 | } else { | |
530 | self.last_byte = Some(val); | |
531 | } | |
aa7e65d2 KS |
532 | } |
533 | } | |
f45dfcf7 KS |
534 | doff += self.blk_align * 2; |
535 | mask >>= 1; | |
9895bd7b | 536 | } |
f45dfcf7 KS |
537 | self.ch = ch; |
538 | }, | |
539 | }; | |
9895bd7b | 540 | |
f45dfcf7 | 541 | let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), abuf); |
9895bd7b KS |
542 | frm.set_duration(Some(samples as u64)); |
543 | frm.set_keyframe(true); | |
171860fc | 544 | Ok(frm.into_ref()) |
9895bd7b KS |
545 | } else { |
546 | Err(DecoderError::InvalidData) | |
547 | } | |
548 | } | |
f9be4e75 KS |
549 | fn flush(&mut self) { |
550 | } | |
9895bd7b KS |
551 | } |
552 | ||
08a1fab7 | 553 | pub fn get_decoder_audio() -> Box<dyn NADecoder + Send> { |
9895bd7b KS |
554 | Box::new(VMDAudioDecoder::new()) |
555 | } | |
556 | ||
557 | #[cfg(test)] | |
558 | mod test { | |
559 | use nihav_core::codecs::RegisteredDecoders; | |
560 | use nihav_core::demuxers::RegisteredDemuxers; | |
ce742854 | 561 | use nihav_codec_support::test::dec_video::*; |
e64739f8 KS |
562 | use crate::game_register_all_codecs; |
563 | use crate::game_register_all_demuxers; | |
9895bd7b KS |
564 | #[test] |
565 | fn test_vmd_video() { | |
566 | let mut dmx_reg = RegisteredDemuxers::new(); | |
567 | game_register_all_demuxers(&mut dmx_reg); | |
568 | let mut dec_reg = RegisteredDecoders::new(); | |
569 | game_register_all_codecs(&mut dec_reg); | |
570 | ||
fe435580 KS |
571 | test_decoding("vmd", "vmd-video", "assets/Game/2832.VMD", Some(10), &dmx_reg, &dec_reg, |
572 | ExpectedTestResult::MD5Frames(vec![ | |
573 | [0xd29e0214, 0xf38ad154, 0xccbd381f, 0x3de1109c], | |
574 | [0x904074eb, 0x202b1d6f, 0xe3f68538, 0xf0db641c], | |
575 | [0x9c8b1b6c, 0xe205b8dc, 0xbfb07406, 0x993ace41], | |
576 | [0x71ce4220, 0x8747fd05, 0x854dd86d, 0x2664cde5], | |
577 | [0x3bc65fa4, 0xebb95292, 0xe0a0fea6, 0x0acfdea1], | |
578 | [0x33982045, 0x8d11b69b, 0xac254a75, 0x63896a21], | |
579 | [0xa667db33, 0x90e122d3, 0x2243da15, 0xcc4bffd2], | |
580 | [0x518621c1, 0xb91412bc, 0x12312869, 0x141ef647], | |
581 | [0x3069977e, 0x68fd3fa0, 0x2bfdb00d, 0x1e694684], | |
582 | [0x246c12aa, 0x15137fb0, 0xa4b0fc3e, 0x626a2676], | |
583 | [0x72cce7e3, 0x98506d04, 0xd4d8bbaf, 0x3cc5e32d]])); | |
9895bd7b KS |
584 | } |
585 | #[test] | |
fe435580 | 586 | fn test_vmd_audio_u8() { |
9895bd7b KS |
587 | let mut dmx_reg = RegisteredDemuxers::new(); |
588 | game_register_all_demuxers(&mut dmx_reg); | |
589 | let mut dec_reg = RegisteredDecoders::new(); | |
590 | game_register_all_codecs(&mut dec_reg); | |
591 | ||
fe435580 KS |
592 | test_decoding("vmd", "vmd-audio", "assets/Game/1491.VMD", None, &dmx_reg, &dec_reg, |
593 | ExpectedTestResult::MD5([0x75037601, 0xbc7b3976, 0x6e1c948b, 0xf05a3d6c])); | |
594 | } | |
595 | #[test] | |
596 | fn test_vmd_audio_s16_old() { | |
597 | let mut dmx_reg = RegisteredDemuxers::new(); | |
598 | game_register_all_demuxers(&mut dmx_reg); | |
599 | let mut dec_reg = RegisteredDecoders::new(); | |
600 | game_register_all_codecs(&mut dec_reg); | |
601 | ||
602 | test_decoding("vmd", "vmd-audio", "assets/Game/2832.VMD", None, &dmx_reg, &dec_reg, | |
603 | ExpectedTestResult::MD5([0x32dcdf0e, 0xee058684, 0x43ed5bf1, 0x2ff18b5a])); | |
604 | } | |
605 | #[test] | |
606 | fn test_vmd_audio_s16_new() { | |
607 | let mut dmx_reg = RegisteredDemuxers::new(); | |
608 | game_register_all_demuxers(&mut dmx_reg); | |
609 | let mut dec_reg = RegisteredDecoders::new(); | |
610 | game_register_all_codecs(&mut dec_reg); | |
611 | ||
612 | test_decoding("vmd", "vmd-audio", "assets/Game/1000.VMD", None, &dmx_reg, &dec_reg, | |
613 | ExpectedTestResult::MD5([0xc36215d3, 0x96530a80, 0x89f1fa8e, 0x49da302b])); | |
9895bd7b KS |
614 | } |
615 | } |