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indeo: reorder frames for Indeo4
[nihav.git] / nihav-indeo / src / codecs / ivibr.rs
CommitLineData
01c971c5 1use std::mem;
5641dccf 2use nihav_core::io::bitreader::*;
11df8d00 3//use io::intcode::*;
5641dccf 4use nihav_core::codecs::*;
08a1fab7 5use nihav_core::frame::NABufferRef;
01c971c5
KS		 6use super::ivi::*;
7use super::ividsp::*;
8
9pub fn scale_mv(val: i32, scale: u8) -> i32 {
f2af8eca 10 (val + (if val > 0 { 1 } else { 0 }) + i32::from(scale) - 1) >> scale
01c971c5
KS		 11}
12
13#[derive(Clone,Copy)]
14pub struct IVICodebook {
15 len: usize,
16 bits: [u8; 16],
098dcca9 17 offs: [u32; 16],
01c971c5
KS		 18}
19
098dcca9 20impl IVICodebook {
01c971c5 21 pub fn init(&self) -> Self {
098dcca9 22 let mut cb = *self;
01c971c5
KS		 23 let mut base: u32 = 0;
24 for i in 0..cb.len {
25 cb.offs[i] = base;
26 base += 1 << cb.bits[i];
27 }
28 cb
29 }
098dcca9
KS		 30}
31
32pub const IVI_CB_ZERO: IVICodebook = IVICodebook { len: 0, bits: [0; 16], offs: [0; 16] };
33
34const IVI_REV0: [u32; 1] = [0];
35const IVI_REV1: [u32; 2] = [0, 1];
36const IVI_REV2: [u32; 4] = [0, 2, 1, 3];
37const IVI_REV3: [u32; 8] = [0, 4, 2, 6, 1, 5, 3, 7];
38const IVI_REV4: [u32; 16] = [ 0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15];
39const IVI_REV5: [u32; 32] = [ 0, 16, 8, 24, 4, 20, 12, 28, 2, 18, 10, 26, 6, 22, 14, 30, 1, 17, 9, 25, 5, 21, 13, 29, 3, 19, 11, 27, 7, 23, 15, 31];
40const IVI_REV6: [u32; 64] = [ 0, 32, 16, 48, 8, 40, 24, 56, 4, 36, 20, 52, 12, 44, 28, 60, 2, 34, 18, 50, 10, 42, 26, 58, 6, 38, 22, 54, 14, 46, 30, 62, 1, 33, 17, 49, 9, 41, 25, 57, 5, 37, 21, 53, 13, 45, 29, 61, 3, 35, 19, 51, 11, 43, 27, 59, 7, 39, 23, 55, 15, 47, 31, 63];
41const IVI_REV7: [u32; 128] = [ 0, 64, 32, 96, 16, 80, 48, 112, 8, 72, 40, 104, 24, 88, 56, 120, 4, 68, 36, 100, 20, 84, 52, 116, 12, 76, 44, 108, 28, 92, 60, 124, 2, 66, 34, 98, 18, 82, 50, 114, 10, 74, 42, 106, 26, 90, 58, 122, 6, 70, 38, 102, 22, 86, 54, 118, 14, 78, 46, 110, 30, 94, 62, 126, 1, 65, 33, 97, 17, 81, 49, 113, 9, 73, 41, 105, 25, 89, 57, 121, 5, 69, 37, 101, 21, 85, 53, 117, 13, 77, 45, 109, 29, 93, 61, 125, 3, 67, 35, 99, 19, 83, 51, 115, 11, 75, 43, 107, 27, 91, 59, 123, 7, 71, 39, 103, 23, 87, 55, 119, 15, 79, 47, 111, 31, 95, 63, 127];
42const IVI_REV8: [u32; 256] = [ 0, 128, 64, 192, 32, 160, 96, 224, 16, 144, 80, 208, 48, 176, 112, 240, 8, 136, 72, 200, 40, 168, 104, 232, 24, 152, 88, 216, 56, 184, 120, 248, 4, 132, 68, 196, 36, 164, 100, 228, 20, 148, 84, 212, 52, 180, 116, 244, 12, 140, 76, 204, 44, 172, 108, 236, 28, 156, 92, 220, 60, 188, 124, 252, 2, 130, 66, 194, 34, 162, 98, 226, 18, 146, 82, 210, 50, 178, 114, 242, 10, 138, 74, 202, 42, 170, 106, 234, 26, 154, 90, 218, 58, 186, 122, 250, 6, 134, 70, 198, 38, 166, 102, 230, 22, 150, 86, 214, 54, 182, 118, 246, 14, 142, 78, 206, 46, 174, 110, 238, 30, 158, 94, 222, 62, 190, 126, 254, 1, 129, 65, 193, 33, 161, 97, 225, 17, 145, 81, 209, 49, 177, 113, 241, 9, 137, 73, 201, 41, 169, 105, 233, 25, 153, 89, 217, 57, 185, 121, 249, 5, 133, 69, 197, 37, 165, 101, 229, 21, 149, 85, 213, 53, 181, 117, 245, 13, 141, 77, 205, 45, 173, 109, 237, 29, 157, 93, 221, 61, 189, 125, 253, 3, 131, 67, 195, 35, 163, 99, 227, 19, 147, 83, 211, 51, 179, 115, 243, 11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251, 7, 135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247, 15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255];
01c971c5 43
098dcca9 44const IVI_REVS: [&[u32]; 9] = [ &IVI_REV0, &IVI_REV1, &IVI_REV2, &IVI_REV3, &IVI_REV4, &IVI_REV5, &IVI_REV6, &IVI_REV7, &IVI_REV8];
01c971c5
KS		 45
46pub trait IVICodebookReader {
47 fn read_ivi_codebook_desc(&mut self, mb_cb: bool, try_default: bool) -> DecoderResult<IVICodebook>;
48 fn read_ivi_cb(&mut self, cb: &IVICodebook) -> BitReaderResult<u32>;
49 fn read_ivi_cb_s(&mut self, cb: &IVICodebook) -> BitReaderResult<i32>;
50}
51
52impl<'a> IVICodebookReader for BitReader<'a> {
53 fn read_ivi_codebook_desc(&mut self, mb_cb: bool, desc_coded: bool) -> DecoderResult<IVICodebook> {
54 if !desc_coded {
55 if mb_cb {
098dcca9 56 Ok(IVI_MB_CB[7].init())
01c971c5 57 } else {
098dcca9 58 Ok(IVI_BLK_CB[7].init())
01c971c5
KS		 59 }
60 } else {
61 let idx = self.read(3)? as usize;
62 if idx != 7 {
63 if mb_cb {
098dcca9 64 Ok(IVI_MB_CB[idx].init())
01c971c5 65 } else {
098dcca9 66 Ok(IVI_BLK_CB[idx].init())
01c971c5
KS		 67 }
68 } else {
69 let mut cb = IVI_CB_ZERO;
70 cb.len = self.read(4)? as usize;
71 if cb.len == 0 { return Err(DecoderError::InvalidData); }
72 for i in 0..cb.len {
73 cb.bits[i] = self.read(4)? as u8;
74 }
098dcca9 75 Ok(cb.init())
01c971c5
KS		 76 }
77 }
78 }
098dcca9 79 #[inline(always)]
01c971c5 80 fn read_ivi_cb(&mut self, cb: &IVICodebook) -> BitReaderResult<u32> {
098dcca9 81/* let pfx = if cb.len == 1 { 0 } else { self.read_code(UintCodeType::LimitedUnary((cb.len - 1) as u32, 0))? as usize };
01c971c5 82 let nbits = cb.bits[pfx];
01c971c5
KS		 83 let mut base: u32 = 0;
84 for i in 0..pfx { base += 1 << cb.bits[i]; }
85 let rval = self.read(nbits)?;
86 let add = reverse_bits(rval, nbits);
098dcca9
KS		 87 Ok(base + add)*/
88 if cb.len > 1 {
89 let len = (!self.peek(16)).trailing_zeros() as usize;
90 let pfx;
91 if len >= cb.len - 1 {
92 pfx = cb.len - 1;
93 self.skip((cb.len - 1) as u32)?;
94 } else {
95 pfx = len;
96 self.skip((len + 1) as u32)?;
97 }
98 let nbits = cb.bits[pfx];
99 let base = cb.offs[pfx];
100 let rval = self.read(nbits)?;
101 let add = IVI_REVS[nbits as usize][rval as usize];
102 Ok(base + add)
103 } else {
104 let nbits = cb.bits[0];
f2af8eca 105 Ok(IVI_REVS[nbits as usize][self.read(nbits)? as usize])
098dcca9 106 }
01c971c5 107 }
098dcca9 108 #[inline(always)]
01c971c5
KS		 109 fn read_ivi_cb_s(&mut self, cb: &IVICodebook) -> BitReaderResult<i32> {
110 let v = self.read_ivi_cb(cb)?;
111 if v == 0 {
112 Ok(0)
113 } else {
114 let sign = (v & 1) == 1;
115 let val = (v >> 1) as i32;
116 if sign {
117 Ok(val + 1)
118 } else {
119 Ok(-val)
120 }
121 }
122 }
123}
124
125pub const IVI_MB_CB: &[IVICodebook; 8] = &[
098dcca9
KS		 126 IVICodebook { len: 8, bits: [ 0, 4, 5, 4, 4, 4, 6, 6, 0, 0, 0, 0, 0, 0, 0, 0 ], offs: [0; 16] },
127 IVICodebook { len: 12, bits: [ 0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2, 0, 0, 0, 0 ], offs: [0; 16] },
128 IVICodebook { len: 12, bits: [ 0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2, 0, 0, 0, 0 ], offs: [0; 16] },
129 IVICodebook { len: 12, bits: [ 0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 0, 0, 0, 0 ], offs: [0; 16] },
130 IVICodebook { len: 13, bits: [ 0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1, 0, 0, 0 ], offs: [0; 16] },
131 IVICodebook { len: 9, bits: [ 0, 4, 4, 4, 4, 3, 3, 3, 2, 0, 0, 0, 0, 0, 0, 0 ], offs: [0; 16] },
132 IVICodebook { len: 10, bits: [ 0, 4, 4, 4, 4, 3, 3, 2, 2, 2, 0, 0, 0, 0, 0, 0 ], offs: [0; 16] },
133 IVICodebook { len: 12, bits: [ 0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2, 0, 0, 0, 0 ], offs: [0; 16] }
01c971c5
KS		 134];
135
136pub const IVI_BLK_CB: &[IVICodebook; 8] = &[
098dcca9
KS		 137 IVICodebook { len: 10, bits: [ 1, 2, 3, 4, 4, 7, 5, 5, 4, 1, 0, 0, 0, 0, 0, 0 ], offs: [0; 16] },
138 IVICodebook { len: 11, bits: [ 2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2, 0, 0, 0, 0, 0 ], offs: [0; 16] },
139 IVICodebook { len: 12, bits: [ 2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1, 0, 0, 0, 0 ], offs: [0; 16] },
140 IVICodebook { len: 13, bits: [ 3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1, 0, 0, 0 ], offs: [0; 16] },
141 IVICodebook { len: 11, bits: [ 3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2, 0, 0, 0, 0, 0 ], offs: [0; 16] },
142 IVICodebook { len: 13, bits: [ 3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1, 0, 0, 0 ], offs: [0; 16] },
143 IVICodebook { len: 13, bits: [ 3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1, 0, 0, 0 ], offs: [0; 16] },
144 IVICodebook { len: 9, bits: [ 3, 4, 4, 5, 5, 5, 6, 5, 5, 0, 0, 0, 0, 0, 0, 0 ], offs: [0; 16] }
01c971c5
KS		 145];
146
147#[allow(unused_variables)]
f2af8eca 148#[allow(clippy::many_single_char_names)]
01c971c5
KS		 149fn read_trans_band_header(br: &mut BitReader, w: usize, h: usize, dst: &mut [i16], dstride: usize) -> DecoderResult<()> {
150 let color_plane = br.read(2)?;
151 let bit_depth = br.read(3)?;
152 let dirty_rects = br.read(8)? as usize;
153 for i in 0..dirty_rects {
154 let x = br.read(16)?;
155 let y = br.read(16)?;
156 let l = br.read(16)?;
157 let r = br.read(16)?;
158 }
159 let has_trans_color = br.read_bool()?;
160 if has_trans_color {
161 let r = br.read(8)?;
162 let g = br.read(8)?;
163 let b = br.read(8)?;
164 }
1a151e53 165
01c971c5
KS		 166 br.skip(1)?;
167
168 let mut cb = IVI_CB_ZERO;
169 cb.len = br.read(4)? as usize;
170 if cb.len == 0 { return Err(DecoderError::InvalidData); }
171 for i in 0..cb.len {
172 cb.bits[i] = br.read(4)? as u8;
173 }
859e6a60 174 cb = cb.init();
01c971c5
KS		 175 br.align();
176
177let tile_start = br.tell();
178 let empty = br.read_bool()?;
179 if !empty {
180 br.read_bool()?;
181 let mut len = br.read(8)? as usize;
182 if len == 255 {
183 len = br.read(24)? as usize;
184 }
185 br.align();
186let tile_end = tile_start + len * 8;
187
188 let first_val = br.read_bool()?;
189
190 let mut dec_size = 0;
191 let mut x = 0;
192 let mut y = 0;
193 let mut fill = if !first_val { 255-128 } else { 0-128 };
194 let tr_w = (w + 31) & !31;
195 while br.tell() < tile_end {
196 let code = br.read_ivi_cb(&cb)? as usize;
197 if code == 0 {
198 dec_size += 255;
199 for _ in 0..255 {
200 if (x < w) && (y < h) {
201 dst[x + y * dstride] = fill;
202 }
203 x += 1;
204 if x == tr_w {
205 x = 0;
206 y += 1;
207 }
208 }
209 } else {
210 dec_size += code;
211 for _ in 0..code {
212 if (x < w) && (y < h) {
213 dst[x + y * dstride] = fill;
214 }
215 x += 1;
216 if x == tr_w {
217 x = 0;
218 y += 1;
219 }
220 }
221 fill = !fill;
222 }
223 }
224 br.align();
225 } else {
226 }
227
228 Ok(())
229}
230
5a6dec5f
KS		 231#[allow(clippy::cast_lossless)]
232fn decode_block8x8(br: &mut BitReader, blk_cb: &IVICodebook, rvmap: &RVMap, tables: &TxParams8x8, is_intra: bool, is_2d: bool, prev_dc: &mut i32, quant: u8, coeffs: &mut [i32; 64], transform: TrFunc) -> DecoderResult<()> {
01c971c5
KS		 233 let mut idx: isize = -1;
234 let quant_mat = if is_intra { tables.quant_intra } else { tables.quant_inter };
235 while idx <= 64 {
236 let c = br.read_ivi_cb(blk_cb)?;
237 if c == rvmap.eob_sym { break; }
238 let run;
239 let val: i32;
240 if c != rvmap.esc_sym {
241 validate!(c < 256);
242 run = rvmap.runtab[c as usize] as isize;
243 val = rvmap.valtab[c as usize] as i32;
244 } else {
245 run = (br.read_ivi_cb(blk_cb)? as isize) + 1;
246 let lo = br.read_ivi_cb(blk_cb)?;
247 let hi = br.read_ivi_cb(blk_cb)?;
248 let v = (hi << 6) + lo;
249 if v == 0 {
250 val = 0; // should not happen but still...
251 } else {
098dcca9 252 let vv = (v >> 1) as i32;
01c971c5 253 if (v & 1) != 0 {
098dcca9 254 val = vv + 1;
01c971c5 255 } else {
098dcca9 256 val = -vv;
01c971c5
KS		 257 }
258 }
259 }
260 idx += run;
6f263099 261 validate!((0..64).contains(&idx));
01c971c5
KS		 262
263 let spos = tables.scan[idx as usize];
f2af8eca 264 let q = (u32::from(quant_mat[spos]) * u32::from(quant)) >> 9;
01c971c5
KS		 265 if q > 1 {
266 let qq = q as i32;
267 let bias = (((q ^ 1) - 1) >> 1) as i32;
268 coeffs[spos] = val * qq;
269 if val > 0 { coeffs[spos] += bias; }
270 else { coeffs[spos] -= bias; }
271 } else {
272 coeffs[spos] = val;
273 }
274 }
275 if is_intra && is_2d {
276 *prev_dc += coeffs[0];
277 coeffs[0] = *prev_dc;
278 }
279 (transform)(coeffs);
280 Ok(())
281}
5a6dec5f
KS		 282#[allow(clippy::cast_lossless)]
283fn decode_block4x4(br: &mut BitReader, blk_cb: &IVICodebook, rvmap: &RVMap, tables: &TxParams4x4, is_intra: bool, is_2d: bool, prev_dc: &mut i32, quant: u8, coeffs: &mut [i32; 64], transform: TrFunc) -> DecoderResult<()> {
01c971c5
KS		 284 let mut idx: isize = -1;
285 let quant_mat = if is_intra { tables.quant_intra } else { tables.quant_inter };
286 while idx <= 64 {
287 let c = br.read_ivi_cb(blk_cb)?;
288 if c == rvmap.eob_sym { break; }
289 let run;
290 let val: i32;
291 if c != rvmap.esc_sym {
292 validate!(c < 256);
293 run = rvmap.runtab[c as usize] as isize;
294 val = rvmap.valtab[c as usize] as i32;
295 } else {
296 run = (br.read_ivi_cb(blk_cb)? as isize) + 1;
297 let lo = br.read_ivi_cb(blk_cb)?;
298 let hi = br.read_ivi_cb(blk_cb)?;
30ac5d4e 299 let v = (hi << 6) + lo;
01c971c5
KS		 300 if v == 0 {
301 val = 0; // should not happen but still...
302 } else {
303 if (v & 1) != 0 {
304 val = ((v >> 1) as i32) + 1;
305 } else {
306 val = -((v >> 1) as i32);
307 }
308 }
309 }
310 idx += run;
6f263099 311 validate!((0..16).contains(&idx));
01c971c5
KS		 312
313 let spos = tables.scan[idx as usize];
f2af8eca 314 let q = (u32::from(quant_mat[spos]) * u32::from(quant)) >> 9;
01c971c5
KS		 315 if q > 1 {
316 let qq = q as i32;
317 let bias = (((q ^ 1) - 1) >> 1) as i32;
318 coeffs[spos] = val * qq;
319 if val > 0 { coeffs[spos] += bias; }
320 else { coeffs[spos] -= bias; }
321 } else {
322 coeffs[spos] = val;
323 }
324 }
325 if is_intra && is_2d {
326 *prev_dc += coeffs[0];
327 coeffs[0] = *prev_dc;
328 }
329 (transform)(coeffs);
330 Ok(())
331}
332
098dcca9
KS		 333fn put_block(frame: &mut [i16], offs: usize, stride: usize, blk: &[i32], blk_size: usize) {
334 unsafe {
f2af8eca 335 let mut dptr = frame.as_mut_ptr().add(offs);
098dcca9
KS		 336 for y in 0..blk_size {
337 for x in 0..blk_size {
f2af8eca 338 *dptr.add(x) = blk[x + y * blk_size] as i16;
098dcca9 339 }
f2af8eca 340 dptr = dptr.add(stride);
01c971c5 341 }
01c971c5
KS		 342 }
343}
344
098dcca9
KS		 345fn add_block(frame: &mut [i16], offs: usize, stride: usize, blk: &[i32], blk_size: usize) {
346 unsafe {
f2af8eca 347 let mut dptr = frame.as_mut_ptr().add(offs);
098dcca9
KS		 348 for y in 0..blk_size {
349 for x in 0..blk_size {
f2af8eca 350 *dptr.add(x) = (*dptr.add(x)).wrapping_add(blk[x + y * blk_size] as i16);
098dcca9 351 }
f2af8eca 352 dptr = dptr.add(stride);
01c971c5 353 }
01c971c5
KS		 354 }
355}
356
357struct FrameData {
358 plane_buf: [Vec<i16>; 4],
359 plane_stride: [usize; 4],
360 pic_hdr: PictureHeader,
361}
362
363fn align(val: usize, bits: u8) -> usize {
364 let mask = (1 << bits) - 1;
365 (val + mask) & !mask
366}
367
368impl FrameData {
08a1fab7
KS		 369 fn new() -> NABufferRef<Self> {
370 NABufferRef::new(FrameData {
01c971c5
KS		 371 plane_buf: [Vec::new(), Vec::new(), Vec::new(), Vec::new()],
372 plane_stride: [0, 0, 0, 0],
373 pic_hdr: PictureHeader::new_null(IVIFrameType::Intra),
08a1fab7 374 })
01c971c5
KS		 375 }
376 fn realloc(&mut self, pic_hdr: &PictureHeader) -> DecoderResult<()> {
377 let width = align(pic_hdr.width, 6);
378 let height = align(pic_hdr.height, 6);
379
380 let stride = width;
381 self.plane_buf[0].resize(stride * height, 0);
382 self.plane_stride[0] = stride;
383 for plane in 1..3 {
384 self.plane_buf[plane].resize((stride >> 1) * (height >> 1), 0);
385 self.plane_stride[plane] = stride >> 1;
386 }
387 if pic_hdr.transparent {
388 self.plane_buf[3].resize(stride * height, 0);
389 self.plane_stride[3] = stride;
390 }
391 self.pic_hdr = *pic_hdr;
392 Ok(())
393 }
394 fn fill_plane(&mut self, vb: &mut NAVideoBuffer<u8>, plane: usize) {
009a04a9
KS		 395 let dplane = if (plane == 1) || (plane == 2) { plane ^ 3 } else { plane };
396 let (w, h) = vb.get_dimensions(dplane);
397 let mut didx = vb.get_offset(dplane);
398 let dstride = vb.get_stride(dplane);
1a967e6b 399 let dst = vb.get_data_mut().unwrap();
01c971c5
KS		 400 let src = &self.plane_buf[plane];
401 let mut sidx = 0;
402 let sstride = self.plane_stride[plane];
403 for _ in 0..h {
404 for x in 0..w {
405 dst[didx + x] = clip8(src[sidx + x] + 128);
406 }
407 didx += dstride;
408 sidx += sstride;
409 }
410 }
411}
412
f2af8eca 413#[allow(clippy::many_single_char_names)]
01c971c5
KS		 414fn do_mc(dst: &mut [i16], dstride: usize, src: &[i16], sstride: usize, x: usize, y: usize, l: usize, r: usize, t: usize, b: usize, mv_x: i32, mv_y: i32, is_hpel: bool, blk_size: usize) {
415 let (xoff, yoff, mv_mode) = if is_hpel {
416 (mv_x >> 1, mv_y >> 1, ((mv_x & 1) + (mv_y & 1) * 2) as u8)
417 } else{
418 (mv_x, mv_y, 0)
419 };
420 let xpos = (x as isize) + (xoff as isize);
421 let ypos = (y as isize) + (yoff as isize);
422 if (xpos < (l as isize)) || ((xpos as usize) + blk_size + ((mv_mode & 1) as usize) > r) ||
423 (ypos < (t as isize)) || ((ypos as usize) + blk_size + ((mv_mode >> 1) as usize) > b) {
424//println!(" copy from {},{} of {}-{},{}-{} {}x{}!", xpos, ypos, l,r,t,b,blk_size,blk_size);
425 return;
426 }
427 let sidx = (xpos as usize) + (ypos as usize) * sstride;
098dcca9
KS		 428 if blk_size == 8 {
429 ivi_mc_put(dst, dstride, &src[sidx..], sstride, mv_mode, 8, 8);
430 } else {
431 ivi_mc_put(dst, dstride, &src[sidx..], sstride, mv_mode, 4, 4);
432 }
01c971c5
KS		 433}
434
f2af8eca 435#[allow(clippy::many_single_char_names)]
01c971c5
KS		 436fn do_mc_b(dst: &mut [i16], dstride: usize, src1: &[i16], sstride1: usize, src2: &[i16], sstride2: usize, x: usize, y: usize, l: usize, r: usize, t: usize, b: usize, mv_x: i32, mv_y: i32, mv2_x: i32, mv2_y: i32, is_hpel: bool, blk_size: usize) {
437 let (xoff1, yoff1, mv_mode1) = if is_hpel {
438 (mv_x >> 1, mv_y >> 1, ((mv_x & 1) + (mv_y & 1) * 2) as u8)
439 } else{
440 (mv_x, mv_y, 0)
441 };
442 let xpos1 = (x as isize) + (xoff1 as isize);
443 let ypos1 = (y as isize) + (yoff1 as isize);
444 if (xpos1 < (l as isize)) || ((xpos1 as usize) + blk_size + ((mv_mode1 & 1) as usize) > r) ||
445 (ypos1 < (t as isize)) || ((ypos1 as usize) + blk_size + ((mv_mode1 >> 1) as usize) > b) {
446 return;
447 }
448 let sidx1 = (xpos1 as usize) + (ypos1 as usize) * sstride1;
449 let (xoff2, yoff2, mv_mode2) = if is_hpel {
450 (mv2_x >> 1, mv2_y >> 1, ((mv2_x & 1) + (mv2_y & 1) * 2) as u8)
451 } else{
452 (mv2_x, mv2_y, 0)
453 };
454 let xpos2 = (x as isize) + (xoff2 as isize);
455 let ypos2 = (y as isize) + (yoff2 as isize);
456 if (xpos2 < (l as isize)) || ((xpos2 as usize) + blk_size + ((mv_mode2 & 1) as usize) > r) ||
457 (ypos2 < (t as isize)) || ((ypos2 as usize) + blk_size + ((mv_mode2 >> 1) as usize) > b) {
458 return;
459 }
460 let sidx2 = (xpos2 as usize) + (ypos2 as usize) * sstride2;
461 ivi_mc_avg(dst, dstride, &src1[sidx1..], sstride1, mv_mode1, &src2[sidx2..], sstride2, mv_mode2, blk_size, blk_size);
462}
463
464pub trait IndeoXParser {
465 fn decode_picture_header(&mut self, br: &mut BitReader) -> DecoderResult<PictureHeader>;
466 fn decode_band_header(&mut self, br: &mut BitReader, pic_hdr: &PictureHeader, plane: usize, band: usize) -> DecoderResult<BandHeader>;
08a1fab7 467 fn decode_mb_info(&mut self, br: &mut BitReader, pic_hdr: &PictureHeader, band_hdr: &BandHeader, tile: &mut IVITile, ref_tile: Option<&IVITile>, mv_scale: u8) -> DecoderResult<()>;
01c971c5
KS		 468 fn recombine_plane(&mut self, src: &[i16], sstride: usize, dst: &mut [u8], dstride: usize, w: usize, h: usize);
469}
470
471const MISSING_REF: usize = 42;
472
473pub struct IVIDecoder {
474 ftype: IVIFrameType,
08a1fab7 475 frames: [NABufferRef<FrameData>; 4],
01c971c5
KS		 476 cur_frame: usize,
477 prev_frame: usize,
478 next_frame: usize,
479 iref_0: usize,
480 iref_1: usize,
481 scal_ref: usize,
482 vinfo: NAVideoInfo,
483 vinfoa: NAVideoInfo,
484 bref: Option<NABufferType>,
485
486 bands: Vec<BandHeader>,
1443a08c 487 band_tiles: usize,
01bdaf24 488 tiles: Vec<IVITile>,
01c971c5
KS		 489 num_tiles: [[usize; 4]; 4],
490 tile_start: [[usize; 4]; 4],
491}
492
493impl IVIDecoder {
494 pub fn new() -> Self {
495 let mut bands: Vec<BandHeader> = Vec::with_capacity(12);
496 bands.resize(12, BandHeader::new_empty(42, 42));
497 IVIDecoder {
498 ftype: IVIFrameType::NULL,
499 frames: [FrameData::new(), FrameData::new(), FrameData::new(), FrameData::new()],
500 cur_frame: 0, prev_frame: MISSING_REF, next_frame: MISSING_REF,
501 iref_0: MISSING_REF, iref_1: MISSING_REF, scal_ref: MISSING_REF,
502 vinfo: NAVideoInfo::new(0, 0, false, YUV410_FORMAT),
503 vinfoa: NAVideoInfo::new(0, 0, false, YUVA410_FORMAT),
504 bref: None,
505
f2af8eca 506 bands,
1443a08c 507 band_tiles: 0,
01c971c5
KS		 508 tiles: Vec::new(), tile_start: [[0; 4]; 4], num_tiles: [[0; 4]; 4],
509 }
510 }
511
512 fn realloc(&mut self, pic_hdr: &PictureHeader) -> DecoderResult<()> {
513 let planes = if pic_hdr.transparent { 4 } else { 3 };
514
37952415
KS		 515 //self.bands.clear();
516 self.tiles.clear();
01c971c5
KS		 517 self.num_tiles = [[0; 4]; 4];
518 self.tile_start = [[0; 4]; 4];
519 let mut tstart: usize = 0;
520 for plane in 0..planes {
521 let is_luma = (plane != 1) && (plane != 2);
522 let bands = if is_luma { pic_hdr.luma_bands } else { pic_hdr.chroma_bands };
523 let mut band_w = if is_luma { pic_hdr.width } else { (pic_hdr.width + 3) >> 2 };
524 let mut band_h = if is_luma { pic_hdr.height } else { (pic_hdr.height + 3) >> 2 };
525 let mut tile_w = if is_luma { pic_hdr.slice_w } else { (pic_hdr.slice_w + 3) >> 2 };
526 let mut tile_h = if is_luma { pic_hdr.slice_h } else { (pic_hdr.slice_h + 3) >> 2 };
527 if bands > 1 {
528 band_w = (band_w + 1) >> 1;
529 band_h = (band_h + 1) >> 1;
530 if plane == 0 {
531 tile_w = (tile_w + 1) >> 1;
532 tile_h = (tile_h + 1) >> 1;
533 }
534 }
1443a08c
KS		 535 if plane == 0 {
536 self.band_tiles = ((band_w + tile_w - 1) / tile_w) * ((band_h + tile_h - 1) / tile_h);
537 }
01c971c5
KS		 538 for band in 0..bands {
539 self.tile_start[plane][band] = tstart;
540 let band_xoff = if (band & 1) == 1 { band_w } else { 0 };
541 let band_yoff = if (band & 2) == 2 { band_h } else { 0 };
542 let mut y = 0;
543 while y < band_h {
544 let cur_h = if y + tile_h <= band_h { tile_h } else { band_h - y };
545 let mut x = 0;
546 while x < band_w {
547 let cur_w = if x + tile_w <= band_w { tile_w } else { band_w - x };
548 let tile = IVITile::new(band_xoff + x, band_yoff + y, cur_w, cur_h);
01bdaf24 549 self.tiles.push(tile);
01c971c5
KS		 550 self.num_tiles[plane][band] += 1;
551 tstart += 1;
552 x += tile_w;
553 }
554 y += tile_h;
555 }
556 }
557 }
558 Ok(())
559 }
ac818eac 560 fn decode_band(&mut self, pic_hdr: &PictureHeader, dec: &mut dyn IndeoXParser, br: &mut BitReader, plane_no: usize, band_no: usize) -> DecoderResult<()> {
01c971c5
KS		 561 let bidx = match plane_no {
562 0 => { band_no },
563 _ => { pic_hdr.luma_bands + plane_no - 1 },
564 };
565 let prev_band = if bidx >= self.bands.len() { BandHeader::new_empty(plane_no, band_no) } else { self.bands[bidx].clone() };
566 let mut band = dec.decode_band_header(br, pic_hdr, plane_no, band_no)?;
567 if let TxType::None = band.ttype {
568 validate!(band.plane_no == prev_band.plane_no);
569 validate!(band.band_no == prev_band.band_no);
570 validate!(band.blk_size == prev_band.blk_size);
571 band.tr = prev_band.tr;
572 band.ttype = prev_band.ttype;
573 };
574
575 let tstart = self.tile_start[band.plane_no][band.band_no];
576 let tend = tstart + self.num_tiles[band.plane_no][band.band_no];
577 let mb_size = band.mb_size;
578 let (tr, tr_dc) = match band.ttype {
579 TxType::Transform4(_) => { ivi_get_transform4x4_funcs(band.tr) },
580 TxType::Transform8(_) => { ivi_get_transform8x8_funcs(band.tr) },
581 _ => { ivi_get_transform4x4_funcs(band.tr) },
582 };
583 for tile_no in tstart..tend {
584 {
01bdaf24 585 let tile = &mut self.tiles[tile_no];
01c971c5
KS		 586 let mb_w = (tile.w + mb_size - 1) / mb_size;
587 let mb_h = (tile.h + mb_size - 1) / mb_size;
588 tile.mb_w = mb_w;
589 tile.mb_h = mb_h;
37952415 590 tile.mb.clear();
01c971c5
KS		 591 tile.mb.resize(mb_w * mb_h, MB::new(0, 0));
592 }
593
594 let tile_start = br.tell();
595 if !br.read_bool()? {
596 let res = br.read_bool()?;
597 validate!(res);
598 let mut len = br.read(8)? as usize;
599 if len == 255 {
600 len = br.read(24)? as usize;
601 }
602 br.align();
603 validate!(len > 0);
b606211a 604 let tile_end = (tile_start & !7) + len * 8;
01c971c5
KS		 605 validate!(tile_end > br.tell());
606 validate!(tile_end <= br.tell() + (br.left() as usize));
607 {
08a1fab7 608 let ref_tile: Option<&IVITile>;
01c971c5
KS		 609 let mv_scale;
610 if (plane_no == 0) && (band_no == 0) {
611 mv_scale = 0;
612 } else {
613 mv_scale = (((self.bands[0].mb_size >> 3) as i8) - ((band.mb_size >> 3) as i8)) as u8;
614 }
01bdaf24
KS		 615 let (ref_tiles, cur_tiles) = self.tiles.split_at_mut(tile_no);
616 let tile = &mut cur_tiles[0];
01c971c5 617 if plane_no != 0 || band_no != 0 {
1443a08c 618 let rtile = &ref_tiles[tile_no % self.band_tiles];
01c971c5
KS		 619 if (tile.mb_w != rtile.mb_w) || (tile.mb_h != rtile.mb_h) {
620 ref_tile = None;
621 } else {
622 ref_tile = Some(rtile);
623 }
624 } else {
625 ref_tile = None;
626 }
01bdaf24 627 dec.decode_mb_info(br, pic_hdr, &band, tile, ref_tile, mv_scale)?;
01c971c5
KS		 628 }
629
5a6dec5f 630 self.decode_tile(br, &band, tile_no, tr, tr_dc)?;
4e1a947f 631 br.align();
01c971c5
KS		 632let skip_part = tile_end - br.tell();
633br.skip(skip_part as u32)?;
634 } else {
635 {
08a1fab7 636 let ref_tile: Option<&IVITile>;
01c971c5
KS		 637 let mv_scale;
638 if (plane_no == 0) && (band_no == 0) {
639 mv_scale = 0;
640 } else {
641 mv_scale = (((self.bands[0].mb_size >> 3) as i8) - ((band.mb_size >> 3) as i8)) as u8;
642 }
01bdaf24
KS		 643 let (ref_tiles, cur_tiles) = self.tiles.split_at_mut(tile_no);
644 let tile = &mut cur_tiles[0];
01c971c5 645 if plane_no != 0 || band_no != 0 {
01bdaf24 646 let rtile = &ref_tiles[0];
01c971c5
KS		 647 if (tile.mb_w != rtile.mb_w) || (tile.mb_h != rtile.mb_h) {
648 ref_tile = None;
649 } else {
650 ref_tile = Some(rtile);
651 }
652 } else {
653 ref_tile = None;
654 }
655 let mut mb_idx = 0;
656 for mb_y in 0..tile.mb_h {
657 for mb_x in 0..tile.mb_w {
658 let mut mb = MB::new(tile.pos_x + mb_x * band.mb_size, tile.pos_y + mb_y * band.mb_size);
659 mb.mtype = MBType::Inter;
660 mb.cbp = 0;
661 if band.inherit_mv {
6f263099 662 if let Some(tileref) = ref_tile {
01c971c5
KS		 663 let mx = tileref.mb[mb_idx].mv_x;
664 let my = tileref.mb[mb_idx].mv_y;
665 mb.mv_x = scale_mv(mx, mv_scale);
666 mb.mv_y = scale_mv(my, mv_scale);
667 }
668 }
669 tile.mb[mb_idx] = mb;
670 mb_idx += 1;
671 }
672 }
673 }
5a6dec5f 674 self.decode_tile(br, &band, tile_no, tr, tr_dc)?;
01c971c5
KS		 675 }
676 }
677 self.bands[bidx] = band;
678 br.align();
679 Ok(())
680 }
5a6dec5f 681 fn decode_tile(&mut self, br: &mut BitReader, band: &BandHeader, tile_no: usize, tr: TrFunc, transform_dc: TrFuncDC) -> DecoderResult<()> {
01c971c5
KS		 682 let mut mb_idx = 0;
683 let mut prev_dc: i32 = 0;
01bdaf24 684 let tile = &mut self.tiles[tile_no];
08a1fab7 685 let mut frame = self.frames[self.cur_frame].clone();
01c971c5
KS		 686
687 let stride = frame.plane_stride[band.plane_no];
688 let mut dstidx = tile.pos_x + tile.pos_y * stride;
6f263099 689 let dst = &mut frame.plane_buf[band.plane_no];
01c971c5
KS		 690 let pos_x = tile.pos_x;
691 let pos_y = tile.pos_y;
692 let tile_w = (tile.w + 15) & !15;
693 let tile_h = (tile.h + 15) & !15;
694 for mb_y in 0..tile.mb_h {
695 for mb_x in 0..tile.mb_w {
696 let mb = &mut tile.mb[mb_idx];
697
698 let is_intra = mb.mtype == MBType::Intra;
699
700 if band.mb_size != band.blk_size {
701 let mut cbp = mb.cbp;
702 for blk_no in 0..4 {
703 let mut blk: [i32; 64] = [0; 64];
009a04a9 704 let boff = (blk_no & 1) * band.blk_size + (blk_no >> 1) * band.blk_size * stride + mb_x * band.mb_size;
01c971c5
KS		 705 if !is_intra {
706 if mb.mtype != MBType::Bidir {
707 let idx;
708 if mb.mtype != MBType::Backward {
709 idx = self.prev_frame;
710 } else {
711 idx = self.next_frame;
712 }
08a1fab7 713 let pf = &self.frames[idx];
01c971c5
KS		 714 do_mc(&mut dst[dstidx + boff..], stride,
715 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
009a04a9
KS		 716 pos_x + mb_x * band.mb_size + (blk_no & 1) * band.blk_size,
717 pos_y + mb_y * band.mb_size + (blk_no >> 1) * band.blk_size,
01c971c5 718 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
009a04a9 719 mb.mv_x, mb.mv_y, band.halfpel, band.blk_size);
01c971c5 720 } else {
08a1fab7
KS		 721 let pf = &self.frames[self.prev_frame];
722 let nf = &self.frames[self.next_frame];
01c971c5
KS		 723 do_mc_b(&mut dst[dstidx + boff..], stride,
724 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
725 &nf.plane_buf[band.plane_no], nf.plane_stride[band.plane_no],
009a04a9
KS		 726 pos_x + mb_x * band.mb_size + (blk_no & 1) * band.blk_size,
727 pos_y + mb_y * band.mb_size + (blk_no >> 1) * band.blk_size,
01c971c5
KS		 728 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
729 mb.mv_x, mb.mv_y, mb.mv2_x, mb.mv2_y, band.halfpel,
730 band.blk_size);
731 }
732 }
733 if (cbp & 1) != 0 {
734 if let TxType::Transform8(ref params) = band.ttype {
735 decode_block8x8(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
736 if is_intra {
6f263099 737 put_block(dst, dstidx + boff, stride, &blk, 8);
01c971c5 738 } else {
6f263099 739 add_block(dst, dstidx + boff, stride, &blk, 8);
01c971c5
KS		 740 }
741 }
009a04a9
KS		 742 if let TxType::Transform4(ref params) = band.ttype {
743 decode_block4x4(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
744 if is_intra {
6f263099 745 put_block(dst, dstidx + boff, stride, &blk, 4);
009a04a9 746 } else {
6f263099 747 add_block(dst, dstidx + boff, stride, &blk, 4);
009a04a9
KS		 748 }
749 }
01c971c5
KS		 750 } else {
751 if is_intra {
752 (transform_dc)(&mut blk, prev_dc);
6f263099 753 put_block(dst, dstidx + boff, stride, &blk, band.blk_size);
01c971c5
KS		 754 }
755 }
756 cbp >>= 1;
757 }
758 } else {
759 let mut blk: [i32; 64] = [0; 64];
760 if !is_intra {
761 if mb.mtype != MBType::Bidir {
762 let idx;
763 if mb.mtype != MBType::Backward {
764 idx = self.prev_frame;
765 } else {
766 idx = self.next_frame;
767 }
08a1fab7 768 let pf = &self.frames[idx];
01c971c5
KS		 769 do_mc(&mut dst[dstidx + mb_x * band.blk_size..], stride,
770 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
771 pos_x + mb_x * band.mb_size,
772 pos_y + mb_y * band.mb_size,
773 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
774 mb.mv_x, mb.mv_y, band.halfpel, band.blk_size);
775 } else {
08a1fab7
KS		 776 let pf = &self.frames[self.prev_frame];
777 let nf = &self.frames[self.next_frame];
01c971c5
KS		 778 do_mc_b(&mut dst[dstidx + mb_x * band.blk_size..], stride,
779 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
780 &nf.plane_buf[band.plane_no], nf.plane_stride[band.plane_no],
781 pos_x + mb_x * band.mb_size,
782 pos_y + mb_y * band.mb_size,
783 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
784 mb.mv_x, mb.mv_y, mb.mv2_x, mb.mv2_y, band.halfpel,
785 band.blk_size);
786 }
787 }
788 if mb.cbp != 0 {
789 if let TxType::Transform8(ref params) = band.ttype {
790 decode_block8x8(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
791 }
792 if let TxType::Transform4(ref params) = band.ttype {
793 decode_block4x4(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
794 }
795 if is_intra {
098dcca9 796 if band.blk_size == 8 {
6f263099 797 put_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
098dcca9 798 } else {
6f263099 799 put_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
098dcca9 800 }
01c971c5 801 } else {
098dcca9 802 if band.blk_size == 8 {
6f263099 803 add_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
098dcca9 804 } else {
6f263099 805 add_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
098dcca9 806 }
01c971c5
KS		 807 }
808 } else {
809 if is_intra {
810 (transform_dc)(&mut blk, prev_dc);
098dcca9 811 if band.blk_size == 8 {
6f263099 812 put_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
098dcca9 813 } else {
6f263099 814 put_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
098dcca9 815 }
01c971c5
KS		 816 }
817 }
818 }
819 mb_idx += 1;
820 }
821 dstidx += stride * band.mb_size;
822 }
01c971c5
KS		 823 Ok(())
824 }
825
826 fn find_unused_frame(&self) -> usize {
827 for fno in 0..4 {
828 if (fno != self.iref_0) && (fno != self.iref_1) && (fno != self.scal_ref) {
829 return fno;
830 }
831 }
832 unreachable!();
833 }
834
ac818eac 835 fn decode_single_frame<'a>(&mut self, dec: &mut dyn IndeoXParser, br: &mut BitReader<'a>) -> DecoderResult<NABufferType> {
01c971c5
KS		 836 let pic_hdr = dec.decode_picture_header(br)?;
837 self.ftype = pic_hdr.ftype;
838 if pic_hdr.ftype.is_null() {
839 return Ok(NABufferType::None);
840 }
841
842 self.cur_frame = self.find_unused_frame();
843 match self.ftype {
844 IVIFrameType::Inter => {
845 self.prev_frame = self.iref_0;
846 if self.prev_frame == MISSING_REF {
847 return Err(DecoderError::MissingReference);
848 }
849 },
850 IVIFrameType::InterDroppable => {
851 self.prev_frame = self.scal_ref;
852 if self.prev_frame == MISSING_REF {
853 return Err(DecoderError::MissingReference);
854 }
855 },
856 IVIFrameType::InterScal => {
857 self.prev_frame = self.scal_ref;
858 if self.prev_frame == MISSING_REF {
859 return Err(DecoderError::MissingReference);
860 }
861 },
862 IVIFrameType::Bidir => {
863 self.prev_frame = self.iref_1;
864 self.next_frame = self.iref_0;
865 if (self.prev_frame == MISSING_REF) || (self.next_frame == MISSING_REF) {
866 return Err(DecoderError::MissingReference);
867 }
868 },
869 _ => {},
870 };
871
f2af8eca 872 let mut vinfo = if pic_hdr.transparent { self.vinfoa } else { self.vinfo };
01c971c5
KS		 873 vinfo.set_width(pic_hdr.width);
874 vinfo.set_height(pic_hdr.height);
875 let mut buftype = alloc_video_buffer(vinfo, 0)?;
876 self.realloc(&pic_hdr)?;
08a1fab7 877 self.frames[self.cur_frame].realloc(&pic_hdr)?;
01c971c5
KS		 878
879 for plane in 0..3 {
880 let num_bands = if plane == 0 { pic_hdr.luma_bands } else { pic_hdr.chroma_bands };
881 for band in 0..num_bands {
882 self.decode_band(&pic_hdr, dec, br, plane, band)?;
883 }
884 if let NABufferType::Video(ref mut vb) = buftype {
08a1fab7 885 let mut frame = self.frames[self.cur_frame].clone();
01c971c5
KS		 886 if num_bands == 1 {
887 frame.fill_plane(vb, plane);
888 } else {
009a04a9
KS		 889 let dplane = if (plane == 1) || (plane == 2) { plane ^ 3 } else { plane };
890 let (w, h) = vb.get_dimensions(dplane);
891 let dstride = vb.get_stride(dplane);
892 let off = vb.get_offset(dplane);
1a967e6b 893 let dst = vb.get_data_mut().unwrap();
01c971c5
KS		 894 dec.recombine_plane(&frame.plane_buf[plane], frame.plane_stride[plane], &mut dst[off..], dstride, w, h);
895 }
896 }
897 }
898 if pic_hdr.transparent {
08a1fab7 899 let mut frame = self.frames[self.cur_frame].clone();
01c971c5
KS		 900 let stride = frame.plane_stride[3];
901 read_trans_band_header(br, pic_hdr.width, pic_hdr.height, &mut frame.plane_buf[3], stride)?;
902 if let NABufferType::Video(ref mut vb) = buftype {
903 frame.fill_plane(vb, 3);
904 }
905 }
906
907 match self.ftype {
92193139 908 IVIFrameType::Intra | IVIFrameType::Intra1 | IVIFrameType::Inter => {
01c971c5
KS		 909 self.iref_1 = self.iref_0;
910 self.iref_0 = self.cur_frame;
911 self.scal_ref = self.cur_frame;
912 },
ac0bb254
KS		 913 IVIFrameType::InterScal => {
914 self.scal_ref = self.cur_frame;
915 },
01c971c5
KS		 916 _ => {},
917 };
918
919 Ok(buftype)
920 }
921
ac818eac 922 pub fn decode_frame<'a>(&mut self, dec: &mut dyn IndeoXParser, br: &mut BitReader<'a>) -> DecoderResult<NABufferType> {
01c971c5
KS		 923 let res = self.decode_single_frame(dec, br);
924 if res.is_err() { return res; }
925 if (self.ftype == IVIFrameType::Intra) && (br.left() > 16) {
926 loop {
927 if br.left() < 8 { break; }
928 if br.read(8)? == 0 { break; }
929 }
930 loop {
931 if br.left() < 8 { break; }
932 if br.peek(8) != 0 { break; }
933 br.skip(8)?;
934 }
935 if br.left() > 24 {
936 let seq = br.peek(21);
937 if seq == 0xBFFF8 {
938 let res2 = self.decode_single_frame(dec, br);
b7c882c1
KS		 939 if let Ok(res) = res2 {
940 self.bref = Some(res);
01c971c5
KS		 941 }
942 }
943 self.ftype = IVIFrameType::Intra;
944 }
945 }
e959ac43
KS		 946 if self.bref.is_some() && self.ftype == IVIFrameType::Inter {
947 let mut bref: Option<NABufferType> = Some(res.unwrap());
948 mem::swap(&mut bref, &mut self.bref);
949 return Ok(bref.unwrap());
950 }
01c971c5
KS		 951 if let Ok(NABufferType::None) = res {
952 if self.bref.is_some() {
953 let mut bref: Option<NABufferType> = None;
954 mem::swap(&mut bref, &mut self.bref);
955 self.ftype = IVIFrameType::Inter;
956 return Ok(bref.unwrap());
957 }
958 }
959 res
960 }
961
f9be4e75
KS		 962 pub fn flush(&mut self) {
963 self.prev_frame = MISSING_REF;
964 self.next_frame = MISSING_REF;
965 self.iref_0 = MISSING_REF;
966 self.iref_1 = MISSING_REF;
967 self.scal_ref = MISSING_REF;
968 }
969
f2af8eca 970 pub fn is_intra(&self) -> bool {
01c971c5
KS		 971 self.ftype.is_intra()
972 }
f2af8eca 973 pub fn get_frame_type(&self) -> FrameType {
01c971c5
KS		 974 match self.ftype {
975 IVIFrameType::Intra => { FrameType::I },
976 IVIFrameType::Intra1 => { FrameType::I },
977 IVIFrameType::Inter => { FrameType::P },
978 IVIFrameType::InterDroppable => { FrameType::P },
979 IVIFrameType::InterScal => { FrameType::P },
980 IVIFrameType::Bidir => { FrameType::B },
981 _ => { FrameType::Skip },
982 }
983 }
984}
985
986pub struct RVMap {
987 pub eob_sym: u32,
988 pub esc_sym: u32,
989 pub runtab: [u8; 256],
990 pub valtab: [i8; 256],
991}
992
993impl Clone for RVMap {
994 fn clone(&self) -> RVMap {
995 let mut runtab: [u8; 256] = [0; 256];
996 let mut valtab: [i8; 256] = [0; 256];
997 runtab.copy_from_slice(&self.runtab);
998 valtab.copy_from_slice(&self.valtab);
f2af8eca 999 RVMap { eob_sym: self.eob_sym, esc_sym: self.esc_sym, runtab, valtab }
01c971c5
KS		 1000 }
1001}
1002
1003pub const IVI_ZERO_RVMAP: RVMap = RVMap { eob_sym: 0, esc_sym: 0, runtab: [0; 256], valtab: [0; 256] };
1004
1005pub static IVI_RVMAPS: [RVMap; 9] = [
1006 RVMap { eob_sym: 5, esc_sym: 2, runtab: [
1007 1, 1, 0, 1, 1, 0, 1, 1, 2, 2, 1, 1, 1, 1, 3, 3,
1008 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 1, 1, 2, 2, 5, 5,
1009 1, 1, 3, 3, 1, 1, 6, 6, 1, 2, 1, 2, 7, 7, 1, 1,
1010 8, 8, 1, 1, 4, 2, 1, 4, 2, 1, 3, 3, 1, 1, 1, 9,
1011 9, 1, 2, 1, 2, 1, 5, 5, 1, 1, 10, 10, 1, 1, 3, 3,
1012 2, 2, 1, 1, 11, 11, 6, 4, 4, 1, 6, 1, 2, 1, 2, 12,
1013 8, 1, 12, 7, 8, 7, 1, 16, 1, 16, 1, 3, 3, 13, 1, 13,
1014 2, 2, 1, 15, 1, 5, 14, 15, 1, 5, 14, 1, 17, 8, 17, 8,
1015 1, 4, 4, 2, 2, 1, 25, 25, 24, 24, 1, 3, 1, 3, 1, 8,
1016 6, 7, 6, 1, 18, 8, 18, 1, 7, 23, 2, 2, 23, 1, 1, 21,
1017 22, 9, 9, 22, 19, 1, 21, 5, 19, 5, 1, 33, 20, 33, 20, 8,
1018 4, 4, 1, 32, 2, 2, 8, 3, 32, 26, 3, 1, 7, 7, 26, 6,
1019 1, 6, 1, 1, 16, 1, 10, 1, 10, 2, 16, 29, 28, 2, 29, 28,
1020 1, 27, 5, 8, 5, 27, 1, 8, 3, 7, 3, 31, 41, 31, 1, 41,
1021 6, 1, 6, 7, 4, 4, 1, 1, 2, 1, 2, 11, 34, 30, 11, 1,
1022 30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38 ],
1023 valtab: [
1024 1, -1, 0, 2, -2, 0, 3, -3, 1, -1, 4, -4, 5, -5, 1, -1,
1025 6, -6, 2, -2, 7, -7, 1, -1, 8, -8, 9, -9, 3, -3, 1, -1,
1026 10, -10, 2, -2, 11, -11, 1, -1, 12, 4, -12, -4, 1, -1, 13, -13,
1027 1, -1, 14, -14, 2, 5, 15, -2, -5, -15, -3, 3, 16, -16, 17, 1,
1028 -1, -17, 6, 18, -6, -18, 2, -2, 19, -19, 1, -1, 20, -20, 4, -4,
1029 7, -7, 21, -21, 1, -1, 2, 3, -3, 22, -2, -22, 8, 23, -8, 1,
1030 2, -23, -1, 2, -2, -2, 24, 1, -24, -1, 25, 5, -5, 1, -25, -1,
1031 9, -9, 26, 1, -26, 3, 1, -1, 27, -3, -1, -27, 1, 3, -1, -3,
1032 28, -4, 4, 10, -10, -28, 1, -1, 1, -1, 29, 6, -29, -6, 30, -4,
1033 3, 3, -3, -30, 1, 4, -1, 31, -3, 1, 11, -11, -1, -31, 32, -1,
1034 -1, 2, -2, 1, 1, -32, 1, 4, -1, -4, 33, -1, 1, 1, -1, 5,
1035 5, -5, -33, -1, -12, 12, -5, -7, 1, 1, 7, 34, 4, -4, -1, 4,
1036 -34, -4, 35, 36, -2, -35, -2, -36, 2, 13, 2, -1, 1, -13, 1, -1,
1037 37, 1, -5, 6, 5, -1, 38, -6, -8, 5, 8, -1, 1, 1, -37, -1,
1038 5, 39, -5, -5, 6, -6, -38, -39, -14, 40, 14, 2, 1, 1, -2, -40,
1039 -1, -2, 2, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1 ],
1040 },
1041 RVMap { eob_sym: 0, esc_sym: 38, runtab: [
1042 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 8, 6, 8, 7,
1043 7, 9, 9, 10, 10, 11, 11, 1, 12, 1, 12, 13, 13, 16, 14, 16,
1044 14, 15, 15, 17, 17, 18, 0, 18, 19, 20, 21, 19, 22, 21, 20, 22,
1045 25, 24, 2, 25, 24, 23, 23, 2, 26, 28, 26, 28, 29, 27, 29, 27,
1046 33, 33, 1, 32, 1, 3, 32, 30, 36, 3, 36, 30, 31, 31, 35, 34,
1047 37, 41, 34, 35, 37, 4, 41, 4, 49, 8, 8, 49, 40, 38, 5, 38,
1048 40, 39, 5, 39, 42, 43, 42, 7, 57, 6, 43, 44, 6, 50, 7, 44,
1049 57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58, 1, 51, 58, 1,
1050 52, 59, 53, 9, 52, 55, 55, 59, 53, 56, 54, 56, 54, 9, 64, 64,
1051 60, 63, 60, 63, 61, 62, 61, 62, 2, 10, 2, 10, 11, 1, 11, 13,
1052 12, 1, 12, 13, 16, 16, 8, 8, 14, 3, 3, 15, 14, 15, 4, 4,
1053 1, 17, 17, 5, 1, 7, 7, 5, 6, 1, 2, 2, 6, 22, 1, 25,
1054 21, 22, 8, 24, 1, 21, 25, 24, 8, 18, 18, 23, 9, 20, 23, 33,
1055 29, 33, 20, 1, 19, 1, 29, 36, 9, 36, 19, 41, 28, 57, 32, 3,
1056 28, 3, 1, 27, 49, 49, 1, 32, 26, 26, 2, 4, 4, 7, 57, 41,
1057 2, 7, 10, 5, 37, 16, 10, 27, 8, 8, 13, 16, 37, 13, 1, 5 ],
1058 valtab: [
1059 0, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1,
1060 -1, 1, -1, 1, -1, 1, -1, 2, 1, -2, -1, 1, -1, 1, 1, -1,
1061 -1, 1, -1, 1, -1, 1, 0, -1, 1, 1, 1, -1, 1, -1, -1, -1,
1062 1, 1, 2, -1, -1, 1, -1, -2, 1, 1, -1, -1, 1, 1, -1, -1,
1063 1, -1, 3, 1, -3, 2, -1, 1, 1, -2, -1, -1, -1, 1, 1, 1,
1064 1, 1, -1, -1, -1, 2, -1, -2, 1, 2, -2, -1, 1, 1, 2, -1,
1065 -1, 1, -2, -1, 1, 1, -1, 2, 1, 2, -1, 1, -2, -1, -2, -1,
1066 -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 4, -1, -1, -4,
1067 1, 1, 1, 2, -1, -1, 1, -1, -1, 1, -1, -1, 1, -2, 1, -1,
1068 1, 1, -1, -1, 1, 1, -1, -1, 3, 2, -3, -2, 2, 5, -2, 2,
1069 2, -5, -2, -2, -2, 2, -3, 3, 2, 3, -3, 2, -2, -2, 3, -3,
1070 6, 2, -2, 3, -6, 3, -3, -3, 3, 7, -4, 4, -3, 2, -7, 2,
1071 2, -2, -4, 2, 8, -2, -2, -2, 4, 2, -2, 2, 3, 2, -2, -2,
1072 2, 2, -2, -8, -2, 9, -2, 2, -3, -2, 2, -2, 2, 2, 2, 4,
1073 -2, -4, 10, 2, 2, -2, -9, -2, 2, -2, 5, 4, -4, 4, -2, 2,
1074 -5, -4, -3, 4, 2, -3, 3, -2, -5, 5, 3, 3, -2, -3, -10, -4 ],
1075 },
1076 RVMap { eob_sym: 2, esc_sym: 11, runtab: [
1077 1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 0, 1, 1, 5, 5,
1078 2, 2, 6, 6, 7, 7, 1, 8, 1, 8, 3, 3, 9, 9, 1, 2,
1079 2, 1, 4, 10, 4, 10, 11, 11, 1, 5, 12, 12, 1, 5, 13, 13,
1080 3, 3, 6, 6, 2, 2, 14, 14, 16, 16, 15, 7, 15, 8, 8, 7,
1081 1, 1, 17, 17, 4, 4, 1, 1, 18, 18, 2, 2, 5, 5, 25, 3,
1082 9, 3, 25, 9, 19, 24, 19, 24, 1, 21, 20, 1, 21, 22, 20, 22,
1083 23, 23, 8, 6, 33, 6, 8, 33, 7, 7, 26, 26, 1, 32, 1, 32,
1084 28, 4, 28, 10, 29, 27, 27, 10, 41, 4, 29, 2, 2, 41, 36, 31,
1085 49, 31, 34, 30, 34, 36, 30, 35, 1, 49, 11, 5, 35, 11, 1, 3,
1086 3, 5, 37, 37, 8, 40, 8, 40, 12, 12, 42, 42, 1, 38, 16, 57,
1087 1, 6, 16, 39, 38, 6, 7, 7, 13, 13, 39, 43, 2, 43, 57, 2,
1088 50, 9, 44, 9, 50, 4, 15, 48, 44, 4, 1, 15, 48, 14, 14, 1,
1089 45, 45, 8, 3, 5, 8, 51, 47, 3, 46, 46, 47, 5, 51, 1, 17,
1090 17, 58, 1, 58, 2, 52, 52, 2, 53, 7, 59, 6, 6, 56, 53, 55,
1091 7, 55, 1, 54, 59, 56, 54, 10, 1, 10, 4, 60, 1, 60, 8, 4,
1092 8, 64, 64, 61, 1, 63, 3, 63, 62, 61, 5, 11, 5, 3, 11, 62 ],
1093 valtab: [
1094 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 0, 3, -3, 1, -1,
1095 2, -2, 1, -1, 1, -1, 4, 1, -4, -1, 2, -2, 1, -1, 5, 3,
1096 -3, -5, 2, 1, -2, -1, 1, -1, 6, 2, 1, -1, -6, -2, 1, -1,
1097 3, -3, 2, -2, 4, -4, 1, -1, 1, -1, 1, 2, -1, 2, -2, -2,
1098 7, -7, 1, -1, 3, -3, 8, -8, 1, -1, 5, -5, 3, -3, 1, 4,
1099 2, -4, -1, -2, 1, 1, -1, -1, 9, 1, 1, -9, -1, 1, -1, -1,
1100 1, -1, 3, -3, 1, 3, -3, -1, 3, -3, 1, -1, 10, 1, -10, -1,
1101 1, 4, -1, 2, 1, -1, 1, -2, 1, -4, -1, 6, -6, -1, 1, 1,
1102 1, -1, 1, 1, -1, -1, -1, 1, 11, -1, -2, 4, -1, 2, -11, 5,
1103 -5, -4, -1, 1, 4, 1, -4, -1, -2, 2, 1, -1, 12, 1, -2, 1,
1104 -12, 4, 2, 1, -1, -4, 4, -4, 2, -2, -1, 1, 7, -1, -1, -7,
1105 -1, -3, 1, 3, 1, 5, 2, 1, -1, -5, 13, -2, -1, 2, -2, -13,
1106 1, -1, 5, 6, 5, -5, 1, 1, -6, 1, -1, -1, -5, -1, 14, 2,
1107 -2, 1, -14, -1, 8, 1, -1, -8, 1, 5, 1, 5, -5, 1, -1, 1,
1108 -5, -1, 15, 1, -1, -1, -1, 3, -15, -3, 6, 1, 16, -1, 6, -6,
1109 -6, 1, -1, 1, -16, 1, 7, -1, 1, -1, -6, -3, 6, -7, 3, -1 ]
1110 },
1111 RVMap { eob_sym: 0, esc_sym: 35, runtab: [
1112 0, 1, 1, 2, 2, 3, 3, 4, 4, 1, 1, 5, 5, 6, 6, 7,
1113 7, 8, 8, 9, 9, 2, 2, 10, 10, 1, 1, 11, 11, 12, 12, 3,
1114 3, 13, 13, 0, 14, 14, 16, 15, 16, 15, 4, 4, 17, 1, 17, 1,
1115 5, 5, 18, 18, 2, 2, 6, 6, 8, 19, 7, 8, 7, 19, 20, 20,
1116 21, 21, 22, 24, 22, 24, 23, 23, 1, 1, 25, 25, 3, 3, 26, 26,
1117 9, 9, 27, 27, 28, 28, 33, 29, 4, 33, 29, 1, 4, 1, 32, 32,
1118 2, 2, 31, 10, 30, 10, 30, 31, 34, 34, 5, 5, 36, 36, 35, 41,
1119 35, 11, 41, 11, 37, 1, 8, 8, 37, 6, 1, 6, 40, 7, 7, 40,
1120 12, 38, 12, 39, 39, 38, 49, 13, 49, 13, 3, 42, 3, 42, 16, 16,
1121 43, 43, 14, 14, 1, 1, 44, 15, 44, 15, 2, 2, 57, 48, 50, 48,
1122 57, 50, 4, 45, 45, 4, 46, 47, 47, 46, 1, 51, 1, 17, 17, 51,
1123 8, 9, 9, 5, 58, 8, 58, 5, 52, 52, 55, 56, 53, 56, 55, 59,
1124 59, 53, 54, 1, 6, 54, 7, 7, 6, 1, 2, 3, 2, 3, 64, 60,
1125 60, 10, 10, 64, 61, 62, 61, 63, 1, 63, 62, 1, 18, 24, 18, 4,
1126 25, 4, 8, 21, 21, 1, 24, 22, 25, 22, 8, 11, 19, 11, 23, 1,
1127 20, 23, 19, 20, 5, 12, 5, 1, 16, 2, 12, 13, 2, 13, 1, 16 ],
1128 valtab: [
1129 0, 1, -1, 1, -1, 1, -1, 1, -1, 2, -2, 1, -1, 1, -1, 1,
1130 -1, 1, -1, 1, -1, 2, -2, 1, -1, 3, -3, 1, -1, 1, -1, 2,
1131 -2, 1, -1, 0, 1, -1, 1, 1, -1, -1, 2, -2, 1, 4, -1, -4,
1132 2, -2, 1, -1, -3, 3, 2, -2, 2, 1, 2, -2, -2, -1, 1, -1,
1133 1, -1, 1, 1, -1, -1, 1, -1, 5, -5, 1, -1, 3, -3, 1, -1,
1134 2, -2, 1, -1, 1, -1, 1, 1, 3, -1, -1, 6, -3, -6, -1, 1,
1135 4, -4, 1, 2, 1, -2, -1, -1, 1, -1, 3, -3, 1, -1, 1, 1,
1136 -1, 2, -1, -2, 1, 7, -3, 3, -1, 3, -7, -3, 1, -3, 3, -1,
1137 2, 1, -2, 1, -1, -1, 1, 2, -1, -2, -4, -1, 4, 1, 2, -2,
1138 1, -1, -2, 2, 8, -8, -1, 2, 1, -2, -5, 5, 1, -1, -1, 1,
1139 -1, 1, 4, -1, 1, -4, -1, -1, 1, 1, 9, 1, -9, 2, -2, -1,
1140 -4, 3, -3, -4, -1, 4, 1, 4, 1, -1, 1, -1, 1, 1, -1, 1,
1141 -1, -1, -1, 10, 4, 1, 4, -4, -4, -10, 6, 5, -6, -5, 1, -1,
1142 1, 3, -3, -1, 1, -1, -1, -1, 11, 1, 1, -11, -2, -2, 2, 5,
1143 -2, -5, -5, 2, -2, 12, 2, -2, 2, 2, 5, -3, -2, 3, -2, -12,
1144 -2, 2, 2, 2, -5, 3, 5, 13, -3, 7, -3, -3, -7, 3, -13, 3 ]
1145 },
1146 RVMap { eob_sym: 0, esc_sym: 34, runtab: [
1147 0, 1, 1, 1, 2, 2, 1, 3, 3, 1, 1, 1, 4, 4, 1, 5,
1148 2, 1, 5, 2, 1, 1, 6, 6, 1, 1, 1, 1, 1, 7, 3, 1,
1149 2, 3, 0, 1, 2, 7, 1, 1, 1, 8, 1, 1, 8, 1, 1, 1,
1150 9, 1, 9, 1, 2, 1, 1, 2, 1, 1, 10, 4, 1, 10, 1, 4,
1151 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 2, 1, 5, 1, 1, 1,
1152 2, 5, 1, 11, 1, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1153 2, 1, 6, 1, 6, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 12,
1154 3, 1, 12, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1,
1155 4, 1, 1, 1, 2, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1,
1156 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 5,
1157 1, 1, 1, 1, 1, 7, 1, 7, 1, 1, 2, 3, 1, 1, 1, 1,
1158 5, 1, 1, 1, 1, 1, 1, 2, 13, 1, 1, 1, 1, 1, 1, 1,
1159 1, 1, 1, 1, 1, 1, 1, 1, 13, 2, 1, 1, 4, 1, 1, 1,
1160 3, 1, 6, 1, 1, 1, 14, 1, 1, 1, 1, 1, 14, 6, 1, 1,
1161 1, 1, 15, 2, 4, 1, 2, 3, 15, 1, 1, 1, 8, 1, 1, 8,
1162 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1 ],
1163 valtab: [
1164 0, 1, -1, 2, 1, -1, -2, 1, -1, 3, -3, 4, 1, -1, -4, 1,
1165 2, 5, -1, -2, -5, 6, 1, -1, -6, 7, -7, 8, -8, 1, 2, 9,
1166 3, -2, 0, -9, -3, -1, 10, -10, 11, 1, -11, 12, -1, -12, 13, -13,
1167 1, 14, -1, -14, 4, 15, -15, -4, 16, -16, 1, 2, 17, -1, -17, -2,
1168 18, -18, 19, -19, 20, 3, -20, 21, -21, -3, 5, 22, 2, -22, -23, 23,
1169 -5, -2, 24, 1, -24, -1, 25, -25, 26, -26, -27, 27, 28, 29, -28, -29,
1170 6, 30, 2, -31, -2, -30, 31, -6, -32, 32, 33, -33, 34, -35, -34, 1,
1171 4, -36, -1, 35, 37, 36, 7, -37, 38, -4, -38, 39, 41, 40, -40, -39,
1172 3, 42, -43, -41, -7, -42, 43, -3, 44, -44, 45, -45, 46, 47, 8, -47,
1173 -48, -46, 50, -50, 48, 49, 51, -49, 52, -52, 5, -51, -8, -53, 53, 3,
1174 -56, 56, 55, 54, -54, 2, 60, -2, -55, 58, 9, -5, 59, 57, -57, -63,
1175 -3, -58, -60, -61, 61, -59, -62, -9, 1, 64, 62, 69, -64, 63, 65, -67,
1176 -68, 66, -65, 68, -66, -69, 67, -70, -1, 10, 71, -71, 4, 73, 72, 70,
1177 6, -76, -3, 74, -78, -74, 1, 78, 80, -72, -75, 76, -1, 3, -73, 79,
1178 75, 77, 1, 11, -4, -79, -10, -6, -1, -77, -83, -80, 2, 81, -84, -2,
1179 83, -81, 82, -82, 84, -87, -86, 85, -11, -85, 86, -89, 87, -88, 88, 89 ]
1180 },
1181 RVMap { eob_sym: 2, esc_sym: 33, runtab: [
1182 1, 1, 0, 2, 1, 2, 1, 3, 3, 1, 1, 4, 4, 2, 2, 1,
1183 1, 5, 5, 6, 1, 6, 1, 7, 7, 3, 3, 2, 8, 2, 8, 1,
1184 1, 0, 9, 9, 1, 1, 10, 4, 10, 4, 11, 11, 2, 1, 2, 1,
1185 12, 12, 3, 3, 1, 1, 13, 5, 5, 13, 14, 1, 1, 14, 2, 2,
1186 6, 6, 15, 1, 1, 15, 16, 4, 7, 16, 4, 7, 1, 1, 3, 3,
1187 8, 8, 2, 2, 1, 1, 17, 17, 1, 1, 18, 18, 5, 5, 2, 2,
1188 1, 1, 9, 19, 9, 19, 20, 3, 3, 20, 1, 10, 21, 1, 10, 4,
1189 4, 21, 22, 6, 6, 22, 1, 1, 23, 24, 2, 2, 23, 24, 11, 1,
1190 1, 11, 7, 25, 7, 1, 1, 25, 8, 8, 3, 26, 3, 1, 12, 2,
1191 2, 26, 1, 12, 5, 5, 27, 4, 1, 4, 1, 27, 28, 1, 28, 13,
1192 1, 13, 2, 29, 2, 1, 32, 6, 1, 30, 14, 29, 14, 6, 3, 31,
1193 3, 1, 30, 1, 32, 31, 33, 9, 33, 1, 1, 7, 9, 7, 2, 2,
1194 1, 1, 4, 36, 34, 4, 5, 10, 10, 5, 34, 1, 1, 35, 8, 8,
1195 36, 3, 35, 1, 15, 3, 2, 1, 16, 15, 16, 2, 37, 1, 37, 1,
1196 1, 1, 6, 6, 38, 1, 38, 11, 1, 39, 39, 40, 11, 2, 41, 4,
1197 40, 1, 2, 4, 1, 1, 1, 41, 3, 1, 3, 1, 5, 7, 5, 7 ],
1198 valtab: [
1199 1, -1, 0, 1, 2, -1, -2, 1, -1, 3, -3, 1, -1, 2, -2, 4,
1200 -4, 1, -1, 1, 5, -1, -5, 1, -1, 2, -2, 3, 1, -3, -1, 6,
1201 -6, 0, 1, -1, 7, -7, 1, 2, -1, -2, 1, -1, 4, 8, -4, -8,
1202 1, -1, 3, -3, 9, -9, 1, 2, -2, -1, 1, 10, -10, -1, 5, -5,
1203 2, -2, 1, 11, -11, -1, 1, 3, 2, -1, -3, -2, 12, -12, 4, -4,
1204 2, -2, -6, 6, 13, -13, 1, -1, 14, -14, 1, -1, 3, -3, 7, -7,
1205 15, -15, 2, 1, -2, -1, 1, 5, -5, -1, -16, 2, 1, 16, -2, 4,
1206 -4, -1, 1, 3, -3, -1, 17, -17, 1, 1, -8, 8, -1, -1, 2, 18,
1207 -18, -2, 3, 1, -3, 19, -19, -1, 3, -3, 6, 1, -6, 20, 2, 9,
1208 -9, -1, -20, -2, 4, -4, 1, -5, 21, 5, -21, -1, 1, -22, -1, 2,
1209 22, -2, 10, 1, -10, 23, 1, 4, -23, 1, 2, -1, -2, -4, -7, 1,
1210 7, -24, -1, 24, -1, -1, 1, 3, -1, -25, 25, 4, -3, -4, 11, -11,
1211 26, -26, 6, 1, 1, -6, -5, -3, 3, 5, -1, -27, 27, 1, 4, -4,
1212 -1, -8, -1, 28, 2, 8, -12, -28, -2, -2, 2, 12, -1, 29, 1, -29,
1213 30, -30, 5, -5, 1, -31, -1, 3, 31, -1, 1, 1, -3, -13, 1, -7,
1214 -1, -32, 13, 7, 32, 33, -33, -1, -9, -34, 9, 34, -6, 5, 6, -5 ]
1215 },
1216 RVMap { eob_sym: 2, esc_sym: 13, runtab: [
1217 1, 1, 0, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 0, 2, 2,
1218 4, 1, 4, 1, 1, 1, 5, 5, 1, 1, 6, 6, 2, 2, 1, 1,
1219 3, 3, 7, 7, 1, 1, 8, 8, 1, 1, 2, 2, 1, 9, 1, 9,
1220 4, 4, 10, 1, 1, 10, 1, 1, 11, 11, 3, 3, 1, 2, 1, 2,
1221 1, 1, 12, 12, 5, 5, 1, 1, 13, 1, 1, 13, 2, 2, 1, 1,
1222 6, 6, 1, 1, 4, 14, 4, 14, 3, 1, 3, 1, 1, 1, 15, 7,
1223 15, 2, 2, 7, 1, 1, 1, 8, 1, 8, 16, 16, 1, 1, 1, 1,
1224 2, 1, 1, 2, 1, 1, 3, 5, 5, 3, 4, 1, 1, 4, 1, 1,
1225 17, 17, 9, 1, 1, 9, 2, 2, 1, 1, 10, 10, 1, 6, 1, 1,
1226 6, 18, 1, 1, 18, 1, 1, 1, 2, 2, 3, 1, 3, 1, 1, 1,
1227 4, 1, 19, 1, 19, 7, 1, 1, 20, 1, 4, 20, 1, 7, 11, 2,
1228 1, 11, 21, 2, 8, 5, 1, 8, 1, 5, 21, 1, 1, 1, 22, 1,
1229 1, 22, 1, 1, 3, 3, 1, 23, 2, 12, 24, 1, 1, 2, 1, 1,
1230 12, 23, 1, 1, 24, 1, 1, 1, 4, 1, 1, 1, 2, 1, 6, 6,
1231 4, 2, 1, 1, 1, 1, 1, 1, 1, 14, 13, 3, 1, 25, 9, 25,
1232 14, 1, 9, 3, 13, 1, 1, 1, 1, 1, 10, 1, 1, 2, 10, 2 ],
1233 valtab: [
1234 -20, -1, 0, 2, -2, 1, -1, 3, -3, 1, -1, 4, -4, 0, 2, -2,
1235 1, 5, -1, -5, 6, -6, 1, -1, 7, -7, 1, -1, 3, -3, 8, -8,
1236 2, -2, 1, -1, 9, -9, 1, -1, 10, -10, 4, -4, 11, 1, -11, -1,
1237 2, -2, 1, 12, -12, -1, 13, -13, 1, -1, 3, -3, 14, 5, -14, -5,
1238 -15, 15, -1, 1, 2, -2, 16, -16, 1, 17, -17, -1, 6, -6, 18, -18,
1239 2, -2, -19, 19, -3, 1, 3, -1, 4, 20, -4, 1, -21, 21, 1, 2,
1240 -1, -7, 7, -2, 22, -22, 23, 2, -23, -2, 1, -1, -24, 24, -25, 25,
1241 -8, -26, 26, 8, -27, 27, 5, 3, -3, -5, -4, 28, -28, 4, 29, -29,
1242 1, -1, -2, -30, 30, 2, 9, -9, -31, 31, 2, -2, -32, 3, 32, -33,
1243 -3, 1, 33, -34, -1, 34, -35, 35, -10, 10, -6, 36, 6, -36, 37, -37,
1244 -5, 38, 1, -38, -1, 3, 39, -39, -1, 40, 5, 1, -40, -3, 2, -11,
1245 -41, -2, 1, 11, -3, -4, 41, 3, 42, 4, -1, -43, -42, 43, 1, -44,
1246 45, -1, 44, -45, -7, 7, -46, 1, -12, 2, 1, -47, 46, 12, 47, 48,
1247 -2, -1, -48, 49, -1, -50, -49, 50, -6, -51, 51, 52, -13, 53, -4, 4,
1248 6, 13, -53, -52, -54, 55, 54, -55, -56, -2, 2, -8, 56, 1, -3, -1,
1249 2, 58, 3, 8, -2, 57, -58, -60, -59, -57, -3, 60, 59, -14, 3, 14 ]
1250 },
1251 RVMap { eob_sym: 2, esc_sym: 38, runtab: [
1252 1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 5, 5, 1, 1, 6,
1253 6, 2, 2, 7, 7, 8, 8, 1, 1, 3, 3, 9, 9, 10, 10, 1,
1254 1, 2, 2, 4, 4, 11, 0, 11, 12, 12, 13, 13, 1, 1, 5, 5,
1255 14, 14, 15, 16, 15, 16, 3, 3, 1, 6, 1, 6, 2, 2, 7, 7,
1256 8, 8, 17, 17, 1, 1, 4, 4, 18, 18, 2, 2, 1, 19, 1, 20,
1257 19, 20, 21, 21, 3, 3, 22, 22, 5, 5, 24, 1, 1, 23, 9, 23,
1258 24, 9, 2, 2, 10, 1, 1, 10, 6, 6, 25, 4, 4, 25, 7, 7,
1259 26, 8, 1, 8, 3, 1, 26, 3, 11, 11, 27, 27, 2, 28, 1, 2,
1260 28, 1, 12, 12, 5, 5, 29, 13, 13, 29, 32, 1, 1, 33, 31, 30,
1261 32, 4, 30, 33, 4, 31, 3, 14, 1, 1, 3, 34, 34, 2, 2, 14,
1262 6, 6, 35, 36, 35, 36, 1, 15, 1, 16, 16, 15, 7, 9, 7, 9,
1263 37, 8, 8, 37, 1, 1, 39, 2, 38, 39, 2, 40, 5, 38, 40, 5,
1264 3, 3, 4, 4, 10, 10, 1, 1, 1, 1, 41, 2, 41, 2, 6, 6,
1265 1, 1, 11, 42, 11, 43, 3, 42, 3, 17, 4, 43, 1, 17, 7, 1,
1266 8, 44, 4, 7, 44, 5, 8, 2, 5, 1, 2, 48, 45, 1, 12, 45,
1267 12, 48, 13, 13, 1, 9, 9, 46, 1, 46, 47, 47, 49, 18, 18, 49 ],
1268 valtab: [
1269 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 1, -1, 3, -3, 1,
1270 -1, -2, 2, 1, -1, 1, -1, 4, -4, -2, 2, 1, -1, 1, -1, 5,
1271 -5, -3, 3, 2, -2, 1, 0, -1, 1, -1, 1, -1, 6, -6, 2, -2,
1272 1, -1, 1, 1, -1, -1, -3, 3, 7, 2, -7, -2, -4, 4, 2, -2,
1273 2, -2, 1, -1, 8, -8, 3, -3, 1, -1, -5, 5, 9, 1, -9, 1,
1274 -1, -1, 1, -1, -4, 4, 1, -1, 3, -3, 1, -10, 10, 1, 2, -1,
1275 -1, -2, 6, -6, 2, 11, -11, -2, 3, -3, 1, -4, 4, -1, 3, -3,
1276 1, 3, 12, -3, -5, -12, -1, 5, 2, -2, 1, -1, -7, 1, 13, 7,
1277 -1, -13, 2, -2, 4, -4, 1, 2, -2, -1, 1, 14, -14, 1, 1, 1,
1278 -1, -5, -1, -1, 5, -1, -6, 2, -15, 15, 6, 1, -1, -8, 8, -2,
1279 -4, 4, 1, 1, -1, -1, 16, 2, -16, -2, 2, -2, 4, 3, -4, -3,
1280 -1, -4, 4, 1, -17, 17, -1, -9, 1, 1, 9, 1, -5, -1, -1, 5,
1281 -7, 7, 6, -6, 3, -3, 18, -18, 19, -19, 1, -10, -1, 10, -5, 5,
1282 20, -20, -3, 1, 3, 1, 8, -1, -8, 2, 7, -1, -21, -2, 5, 21,
1283 5, -1, -7, -5, 1, -6, -5, -11, 6, 22, 11, 1, 1, -22, -3, -1,
1284 3, -1, 3, -3, -23, 4, -4, 1, 23, -1, 1, -1, 1, -2, 2, -1 ]
1285 },
1286 RVMap { eob_sym: 4, esc_sym: 11, runtab: [
1287 1, 1, 1, 1, 0, 2, 2, 1, 1, 3, 3, 0, 1, 1, 2, 2,
1288 4, 4, 1, 1, 5, 5, 1, 1, 2, 2, 3, 3, 6, 6, 1, 1,
1289 7, 7, 8, 1, 8, 2, 2, 1, 4, 4, 1, 3, 1, 3, 9, 9,
1290 2, 2, 1, 5, 1, 5, 10, 10, 1, 1, 11, 11, 3, 6, 3, 4,
1291 4, 6, 2, 2, 1, 12, 1, 12, 7, 13, 7, 13, 1, 1, 8, 8,
1292 2, 2, 14, 14, 16, 15, 16, 5, 5, 1, 3, 15, 1, 3, 4, 4,
1293 1, 1, 17, 17, 2, 2, 6, 6, 1, 18, 1, 18, 22, 21, 22, 21,
1294 25, 24, 25, 19, 9, 20, 9, 23, 19, 24, 20, 3, 23, 7, 3, 1,
1295 1, 7, 28, 26, 29, 5, 28, 26, 5, 8, 29, 4, 8, 27, 2, 2,
1296 4, 27, 1, 1, 10, 36, 10, 33, 33, 36, 30, 1, 32, 32, 1, 30,
1297 6, 31, 31, 35, 3, 6, 11, 11, 3, 2, 35, 2, 34, 1, 34, 1,
1298 37, 37, 12, 7, 12, 5, 41, 5, 4, 7, 1, 8, 13, 4, 1, 41,
1299 13, 38, 8, 38, 9, 1, 40, 40, 9, 1, 39, 2, 2, 49, 39, 42,
1300 3, 3, 14, 16, 49, 14, 16, 42, 43, 43, 6, 6, 15, 1, 1, 15,
1301 44, 44, 1, 1, 50, 48, 4, 5, 4, 7, 5, 2, 10, 10, 48, 7,
1302 50, 45, 2, 1, 45, 8, 8, 1, 46, 46, 3, 47, 47, 3, 1, 1 ],
1303 valtab: [
1304 1, -1, 2, -2, 0, 1, -1, 3, -3, 1, -1, 0, 4, -4, 2, -2,
1305 1, -1, 5, -5, 1, -1, 6, -6, 3, -3, 2, -2, 1, -1, 7, -7,
1306 1, -1, 1, 8, -1, 4, -4, -8, 2, -2, 9, 3, -9, -3, 1, -1,
1307 5, -5, 10, 2, -10, -2, 1, -1, 11, -11, 1, -1, -4, 2, 4, 3,
1308 -3, -2, 6, -6, 12, 1, -12, -1, 2, 1, -2, -1, 13, -13, 2, -2,
1309 7, -7, 1, -1, 1, 1, -1, 3, -3, 14, 5, -1, -14, -5, 4, -4,
1310 15, -15, 1, -1, 8, -8, -3, 3, 16, 1, -16, -1, 1, 1, -1, -1,
1311 1, 1, -1, 1, 2, 1, -2, 1, -1, -1, -1, 6, -1, 3, -6, 17,
1312 -17, -3, 1, 1, 1, 4, -1, -1, -4, 3, -1, 5, -3, -1, -9, 9,
1313 -5, 1, 18, -18, 2, 1, -2, 1, -1, -1, 1, 19, -1, 1, -19, -1,
1314 4, 1, -1, 1, 7, -4, -2, 2, -7, 10, -1, -10, 1, 20, -1, -20,
1315 1, -1, 2, 4, -2, 5, 1, -5, 6, -4, 21, 4, 2, -6, -21, -1,
1316 -2, 1, -4, -1, -3, 22, -1, 1, 3, -22, -1, 11, -11, 1, 1, 1,
1317 8, -8, 2, 2, -1, -2, -2, -1, 1, -1, -5, 5, 2, 23, -23, -2,
1318 1, -1, 24, -24, -1, -1, 7, 6, -7, 5, -6, 12, -3, 3, 1, -5,
1319 1, 1, -12, 25, -1, -5, 5, -25, -1, 1, 9, 1, -1, -9, 26, -26 ]
1320 }
1321];
NihAV is a research multimedia framework