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d544085f350fa54d68cb950a1ba9b438a700a225
[nihav.git] / nihav-indeo / src / codecs / ivibr.rs
1 use std::mem;
2 use nihav_core::io::bitreader::*;
3 //use io::intcode::*;
4 use nihav_core::codecs::*;
5 use nihav_core::frame::NABufferRef;
6 use super::ivi::*;
7 use super::ividsp::*;
8
9 pub fn scale_mv(val: i32, scale: u8) -> i32 {
10 (val + (if val > 0 { 1 } else { 0 }) + i32::from(scale) - 1) >> scale
11 }
12
13 #[derive(Clone,Copy)]
14 pub struct IVICodebook {
15 len: usize,
16 bits: [u8; 16],
17 offs: [u32; 16],
18 }
19
20 impl IVICodebook {
21 pub fn init(&self) -> Self {
22 let mut cb = *self;
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 }
30 }
31
32 pub const IVI_CB_ZERO: IVICodebook = IVICodebook { len: 0, bits: [0; 16], offs: [0; 16] };
33
34 const IVI_REV0: [u32; 1] = [0];
35 const IVI_REV1: [u32; 2] = [0, 1];
36 const IVI_REV2: [u32; 4] = [0, 2, 1, 3];
37 const IVI_REV3: [u32; 8] = [0, 4, 2, 6, 1, 5, 3, 7];
38 const IVI_REV4: [u32; 16] = [ 0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15];
39 const 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];
40 const 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];
41 const 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];
42 const 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];
43
44 const IVI_REVS: [&[u32]; 9] = [ &IVI_REV0, &IVI_REV1, &IVI_REV2, &IVI_REV3, &IVI_REV4, &IVI_REV5, &IVI_REV6, &IVI_REV7, &IVI_REV8];
45
46 pub 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
52 impl<'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 {
56 Ok(IVI_MB_CB[7].init())
57 } else {
58 Ok(IVI_BLK_CB[7].init())
59 }
60 } else {
61 let idx = self.read(3)? as usize;
62 if idx != 7 {
63 if mb_cb {
64 Ok(IVI_MB_CB[idx].init())
65 } else {
66 Ok(IVI_BLK_CB[idx].init())
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 }
75 Ok(cb.init())
76 }
77 }
78 }
79 #[inline(always)]
80 fn read_ivi_cb(&mut self, cb: &IVICodebook) -> BitReaderResult<u32> {
81 /* let pfx = if cb.len == 1 { 0 } else { self.read_code(UintCodeType::LimitedUnary((cb.len - 1) as u32, 0))? as usize };
82 let nbits = cb.bits[pfx];
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);
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];
105 Ok(IVI_REVS[nbits as usize][self.read(nbits)? as usize])
106 }
107 }
108 #[inline(always)]
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
125 pub const IVI_MB_CB: &[IVICodebook; 8] = &[
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] }
134 ];
135
136 pub const IVI_BLK_CB: &[IVICodebook; 8] = &[
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] }
145 ];
146
147 #[allow(unused_variables)]
148 #[allow(clippy::many_single_char_names)]
149 fn 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 }
165
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 }
174 cb = cb.init();
175 br.align();
176
177 let 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();
186 let 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
231 #[allow(clippy::cast_lossless)]
232 fn 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<()> {
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 {
252 let vv = (v >> 1) as i32;
253 if (v & 1) != 0 {
254 val = vv + 1;
255 } else {
256 val = -vv;
257 }
258 }
259 }
260 idx += run;
261 validate!((0..64).contains(&idx));
262
263 let spos = tables.scan[idx as usize];
264 let q = (u32::from(quant_mat[spos]) * u32::from(quant)) >> 9;
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 }
282 #[allow(clippy::cast_lossless)]
283 fn 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<()> {
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)?;
299 let v = (hi << 6) + lo;
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;
311 validate!((0..16).contains(&idx));
312
313 let spos = tables.scan[idx as usize];
314 let q = (u32::from(quant_mat[spos]) * u32::from(quant)) >> 9;
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
333 fn put_block(frame: &mut [i16], offs: usize, stride: usize, blk: &[i32], blk_size: usize) {
334 unsafe {
335 let mut dptr = frame.as_mut_ptr().add(offs);
336 for y in 0..blk_size {
337 for x in 0..blk_size {
338 *dptr.add(x) = blk[x + y * blk_size] as i16;
339 }
340 dptr = dptr.add(stride);
341 }
342 }
343 }
344
345 fn add_block(frame: &mut [i16], offs: usize, stride: usize, blk: &[i32], blk_size: usize) {
346 unsafe {
347 let mut dptr = frame.as_mut_ptr().add(offs);
348 for y in 0..blk_size {
349 for x in 0..blk_size {
350 *dptr.add(x) = (*dptr.add(x)).wrapping_add(blk[x + y * blk_size] as i16);
351 }
352 dptr = dptr.add(stride);
353 }
354 }
355 }
356
357 struct FrameData {
358 plane_buf: [Vec<i16>; 4],
359 plane_stride: [usize; 4],
360 pic_hdr: PictureHeader,
361 }
362
363 fn align(val: usize, bits: u8) -> usize {
364 let mask = (1 << bits) - 1;
365 (val + mask) & !mask
366 }
367
368 impl FrameData {
369 fn new() -> NABufferRef<Self> {
370 NABufferRef::new(FrameData {
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),
374 })
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) {
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);
399 let dst = vb.get_data_mut().unwrap();
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
413 #[allow(clippy::many_single_char_names)]
414 fn 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;
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 }
433 }
434
435 #[allow(clippy::many_single_char_names)]
436 fn 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
464 pub 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>;
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<()>;
468 fn recombine_plane(&mut self, src: &[i16], sstride: usize, dst: &mut [u8], dstride: usize, w: usize, h: usize);
469 }
470
471 const MISSING_REF: usize = 42;
472
473 pub struct IVIDecoder {
474 ftype: IVIFrameType,
475 frames: [NABufferRef<FrameData>; 4],
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>,
487 band_tiles: usize,
488 tiles: Vec<IVITile>,
489 num_tiles: [[usize; 4]; 4],
490 tile_start: [[usize; 4]; 4],
491
492 scalable: bool,
493 }
494
495 impl IVIDecoder {
496 pub fn new(scalable: bool) -> Self {
497 let mut bands: Vec<BandHeader> = Vec::with_capacity(12);
498 bands.resize(12, BandHeader::new_empty(42, 42));
499 IVIDecoder {
500 ftype: IVIFrameType::NULL,
501 frames: [FrameData::new(), FrameData::new(), FrameData::new(), FrameData::new()],
502 cur_frame: 0, prev_frame: MISSING_REF, next_frame: MISSING_REF,
503 iref_0: MISSING_REF, iref_1: MISSING_REF, scal_ref: MISSING_REF,
504 vinfo: NAVideoInfo::new(0, 0, false, YUV410_FORMAT),
505 vinfoa: NAVideoInfo::new(0, 0, false, YUVA410_FORMAT),
506 bref: None,
507
508 bands,
509 band_tiles: 0,
510 tiles: Vec::new(), tile_start: [[0; 4]; 4], num_tiles: [[0; 4]; 4],
511
512 scalable,
513 }
514 }
515
516 fn realloc(&mut self, pic_hdr: &PictureHeader) -> DecoderResult<()> {
517 let planes = if pic_hdr.transparent { 4 } else { 3 };
518
519 //self.bands.clear();
520 self.tiles.clear();
521 self.num_tiles = [[0; 4]; 4];
522 self.tile_start = [[0; 4]; 4];
523 let mut tstart: usize = 0;
524 for plane in 0..planes {
525 let is_luma = (plane != 1) && (plane != 2);
526 let bands = if is_luma { pic_hdr.luma_bands } else { pic_hdr.chroma_bands };
527 let mut band_w = if is_luma { pic_hdr.width } else { (pic_hdr.width + 3) >> 2 };
528 let mut band_h = if is_luma { pic_hdr.height } else { (pic_hdr.height + 3) >> 2 };
529 let mut tile_w = if is_luma { pic_hdr.slice_w } else { (pic_hdr.slice_w + 3) >> 2 };
530 let mut tile_h = if is_luma { pic_hdr.slice_h } else { (pic_hdr.slice_h + 3) >> 2 };
531 if bands > 1 {
532 band_w = (band_w + 1) >> 1;
533 band_h = (band_h + 1) >> 1;
534 if plane == 0 {
535 tile_w = (tile_w + 1) >> 1;
536 tile_h = (tile_h + 1) >> 1;
537 }
538 }
539 if plane == 0 {
540 self.band_tiles = ((band_w + tile_w - 1) / tile_w) * ((band_h + tile_h - 1) / tile_h);
541 }
542 for band in 0..bands {
543 self.tile_start[plane][band] = tstart;
544 let band_xoff = if (band & 1) == 1 { band_w } else { 0 };
545 let band_yoff = if (band & 2) == 2 { band_h } else { 0 };
546 let mut y = 0;
547 while y < band_h {
548 let cur_h = if y + tile_h <= band_h { tile_h } else { band_h - y };
549 let mut x = 0;
550 while x < band_w {
551 let cur_w = if x + tile_w <= band_w { tile_w } else { band_w - x };
552 let tile = IVITile::new(band_xoff + x, band_yoff + y, cur_w, cur_h);
553 self.tiles.push(tile);
554 self.num_tiles[plane][band] += 1;
555 tstart += 1;
556 x += tile_w;
557 }
558 y += tile_h;
559 }
560 }
561 }
562 Ok(())
563 }
564 fn decode_band(&mut self, pic_hdr: &PictureHeader, dec: &mut dyn IndeoXParser, br: &mut BitReader, plane_no: usize, band_no: usize) -> DecoderResult<()> {
565 let bidx = match plane_no {
566 0 => { band_no },
567 _ => { pic_hdr.luma_bands + plane_no - 1 },
568 };
569 let prev_band = if bidx >= self.bands.len() { BandHeader::new_empty(plane_no, band_no) } else { self.bands[bidx].clone() };
570 let mut band = dec.decode_band_header(br, pic_hdr, plane_no, band_no)?;
571 if let TxType::None = band.ttype {
572 validate!(band.plane_no == prev_band.plane_no);
573 validate!(band.band_no == prev_band.band_no);
574 validate!(band.blk_size == prev_band.blk_size);
575 band.tr = prev_band.tr;
576 band.ttype = prev_band.ttype;
577 };
578
579 let tstart = self.tile_start[band.plane_no][band.band_no];
580 let tend = tstart + self.num_tiles[band.plane_no][band.band_no];
581 let mb_size = band.mb_size;
582 let (tr, tr_dc) = match band.ttype {
583 TxType::Transform4(_) => { ivi_get_transform4x4_funcs(band.tr) },
584 TxType::Transform8(_) => { ivi_get_transform8x8_funcs(band.tr) },
585 _ => { ivi_get_transform4x4_funcs(band.tr) },
586 };
587 for tile_no in tstart..tend {
588 {
589 let tile = &mut self.tiles[tile_no];
590 let mb_w = (tile.w + mb_size - 1) / mb_size;
591 let mb_h = (tile.h + mb_size - 1) / mb_size;
592 tile.mb_w = mb_w;
593 tile.mb_h = mb_h;
594 tile.mb.clear();
595 tile.mb.resize(mb_w * mb_h, MB::new(0, 0));
596 }
597
598 let tile_start = br.tell();
599 if !br.read_bool()? {
600 let res = br.read_bool()?;
601 validate!(res);
602 let mut len = br.read(8)? as usize;
603 if len == 255 {
604 len = br.read(24)? as usize;
605 }
606 br.align();
607 validate!(len > 0);
608 let tile_end = (tile_start & !7) + len * 8;
609 validate!(tile_end > br.tell());
610 validate!(tile_end <= br.tell() + (br.left() as usize));
611 {
612 let ref_tile: Option<&IVITile>;
613 let mv_scale;
614 if (plane_no == 0) && (band_no == 0) {
615 mv_scale = 0;
616 } else {
617 mv_scale = (((self.bands[0].mb_size >> 3) as i8) - ((band.mb_size >> 3) as i8)) as u8;
618 }
619 let (ref_tiles, cur_tiles) = self.tiles.split_at_mut(tile_no);
620 let tile = &mut cur_tiles[0];
621 if plane_no != 0 || band_no != 0 {
622 let rtile = &ref_tiles[tile_no % self.band_tiles];
623 if (tile.mb_w != rtile.mb_w) || (tile.mb_h != rtile.mb_h) {
624 ref_tile = None;
625 } else {
626 ref_tile = Some(rtile);
627 }
628 } else {
629 ref_tile = None;
630 }
631 dec.decode_mb_info(br, pic_hdr, &band, tile, ref_tile, mv_scale)?;
632 }
633
634 self.decode_tile(br, &band, tile_no, tr, tr_dc)?;
635 br.align();
636 let skip_part = tile_end - br.tell();
637 br.skip(skip_part as u32)?;
638 } else {
639 {
640 let ref_tile: Option<&IVITile>;
641 let mv_scale;
642 if (plane_no == 0) && (band_no == 0) {
643 mv_scale = 0;
644 } else {
645 mv_scale = (((self.bands[0].mb_size >> 3) as i8) - ((band.mb_size >> 3) as i8)) as u8;
646 }
647 let (ref_tiles, cur_tiles) = self.tiles.split_at_mut(tile_no);
648 let tile = &mut cur_tiles[0];
649 if plane_no != 0 || band_no != 0 {
650 let rtile = &ref_tiles[0];
651 if (tile.mb_w != rtile.mb_w) || (tile.mb_h != rtile.mb_h) {
652 ref_tile = None;
653 } else {
654 ref_tile = Some(rtile);
655 }
656 } else {
657 ref_tile = None;
658 }
659 let mut mb_idx = 0;
660 for mb_y in 0..tile.mb_h {
661 for mb_x in 0..tile.mb_w {
662 let mut mb = MB::new(tile.pos_x + mb_x * band.mb_size, tile.pos_y + mb_y * band.mb_size);
663 mb.mtype = MBType::Inter;
664 mb.cbp = 0;
665 if band.inherit_mv {
666 if let Some(tileref) = ref_tile {
667 let mx = tileref.mb[mb_idx].mv_x;
668 let my = tileref.mb[mb_idx].mv_y;
669 mb.mv_x = scale_mv(mx, mv_scale);
670 mb.mv_y = scale_mv(my, mv_scale);
671 }
672 }
673 tile.mb[mb_idx] = mb;
674 mb_idx += 1;
675 }
676 }
677 }
678 self.decode_tile(br, &band, tile_no, tr, tr_dc)?;
679 }
680 }
681 self.bands[bidx] = band;
682 br.align();
683 Ok(())
684 }
685 fn decode_tile(&mut self, br: &mut BitReader, band: &BandHeader, tile_no: usize, tr: TrFunc, transform_dc: TrFuncDC) -> DecoderResult<()> {
686 let mut mb_idx = 0;
687 let mut prev_dc: i32 = 0;
688 let tile = &mut self.tiles[tile_no];
689 let mut frame = self.frames[self.cur_frame].clone();
690
691 let stride = frame.plane_stride[band.plane_no];
692 let mut dstidx = tile.pos_x + tile.pos_y * stride;
693 let dst = &mut frame.plane_buf[band.plane_no];
694 let pos_x = tile.pos_x;
695 let pos_y = tile.pos_y;
696 let tile_w = (tile.w + 15) & !15;
697 let tile_h = (tile.h + 15) & !15;
698 for mb_y in 0..tile.mb_h {
699 for mb_x in 0..tile.mb_w {
700 let mb = &mut tile.mb[mb_idx];
701
702 let is_intra = mb.mtype == MBType::Intra;
703
704 if band.mb_size != band.blk_size {
705 let mut cbp = mb.cbp;
706 for blk_no in 0..4 {
707 let mut blk: [i32; 64] = [0; 64];
708 let boff = (blk_no & 1) * band.blk_size + (blk_no >> 1) * band.blk_size * stride + mb_x * band.mb_size;
709 if !is_intra {
710 if mb.mtype != MBType::Bidir {
711 let idx;
712 if mb.mtype != MBType::Backward {
713 idx = self.prev_frame;
714 } else {
715 idx = self.next_frame;
716 }
717 let pf = &self.frames[idx];
718 do_mc(&mut dst[dstidx + boff..], stride,
719 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
720 pos_x + mb_x * band.mb_size + (blk_no & 1) * band.blk_size,
721 pos_y + mb_y * band.mb_size + (blk_no >> 1) * band.blk_size,
722 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
723 mb.mv_x, mb.mv_y, band.halfpel, band.blk_size);
724 } else {
725 let pf = &self.frames[self.prev_frame];
726 let nf = &self.frames[self.next_frame];
727 do_mc_b(&mut dst[dstidx + boff..], stride,
728 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
729 &nf.plane_buf[band.plane_no], nf.plane_stride[band.plane_no],
730 pos_x + mb_x * band.mb_size + (blk_no & 1) * band.blk_size,
731 pos_y + mb_y * band.mb_size + (blk_no >> 1) * band.blk_size,
732 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
733 mb.mv_x, mb.mv_y, mb.mv2_x, mb.mv2_y, band.halfpel,
734 band.blk_size);
735 }
736 }
737 if (cbp & 1) != 0 {
738 if let TxType::Transform8(ref params) = band.ttype {
739 decode_block8x8(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
740 if is_intra {
741 put_block(dst, dstidx + boff, stride, &blk, 8);
742 } else {
743 add_block(dst, dstidx + boff, stride, &blk, 8);
744 }
745 }
746 if let TxType::Transform4(ref params) = band.ttype {
747 decode_block4x4(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
748 if is_intra {
749 put_block(dst, dstidx + boff, stride, &blk, 4);
750 } else {
751 add_block(dst, dstidx + boff, stride, &blk, 4);
752 }
753 }
754 } else {
755 if is_intra {
756 (transform_dc)(&mut blk, prev_dc);
757 put_block(dst, dstidx + boff, stride, &blk, band.blk_size);
758 }
759 }
760 cbp >>= 1;
761 }
762 } else {
763 let mut blk: [i32; 64] = [0; 64];
764 if !is_intra {
765 if mb.mtype != MBType::Bidir {
766 let idx;
767 if mb.mtype != MBType::Backward {
768 idx = self.prev_frame;
769 } else {
770 idx = self.next_frame;
771 }
772 let pf = &self.frames[idx];
773 do_mc(&mut dst[dstidx + mb_x * band.blk_size..], stride,
774 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
775 pos_x + mb_x * band.mb_size,
776 pos_y + mb_y * band.mb_size,
777 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
778 mb.mv_x, mb.mv_y, band.halfpel, band.blk_size);
779 } else {
780 let pf = &self.frames[self.prev_frame];
781 let nf = &self.frames[self.next_frame];
782 do_mc_b(&mut dst[dstidx + mb_x * band.blk_size..], stride,
783 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
784 &nf.plane_buf[band.plane_no], nf.plane_stride[band.plane_no],
785 pos_x + mb_x * band.mb_size,
786 pos_y + mb_y * band.mb_size,
787 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
788 mb.mv_x, mb.mv_y, mb.mv2_x, mb.mv2_y, band.halfpel,
789 band.blk_size);
790 }
791 }
792 if mb.cbp != 0 {
793 if let TxType::Transform8(ref params) = band.ttype {
794 decode_block8x8(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
795 }
796 if let TxType::Transform4(ref params) = band.ttype {
797 decode_block4x4(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
798 }
799 if is_intra {
800 if band.blk_size == 8 {
801 put_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
802 } else {
803 put_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
804 }
805 } else {
806 if band.blk_size == 8 {
807 add_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
808 } else {
809 add_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
810 }
811 }
812 } else {
813 if is_intra {
814 (transform_dc)(&mut blk, prev_dc);
815 if band.blk_size == 8 {
816 put_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
817 } else {
818 put_block(dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
819 }
820 }
821 }
822 }
823 mb_idx += 1;
824 }
825 dstidx += stride * band.mb_size;
826 }
827 Ok(())
828 }
829
830 fn find_unused_frame(&self) -> usize {
831 for fno in 0..4 {
832 if (fno != self.iref_0) && (fno != self.iref_1) && (fno != self.scal_ref) {
833 return fno;
834 }
835 }
836 unreachable!();
837 }
838
839 fn decode_single_frame<'a>(&mut self, dec: &mut dyn IndeoXParser, br: &mut BitReader<'a>) -> DecoderResult<NABufferType> {
840 let pic_hdr = dec.decode_picture_header(br)?;
841 self.ftype = pic_hdr.ftype;
842 if pic_hdr.ftype.is_null() {
843 return Ok(NABufferType::None);
844 }
845
846 self.cur_frame = self.find_unused_frame();
847 match self.ftype {
848 IVIFrameType::Inter => {
849 self.prev_frame = self.iref_0;
850 if self.prev_frame == MISSING_REF {
851 return Err(DecoderError::MissingReference);
852 }
853 },
854 IVIFrameType::InterDroppable => {
855 self.prev_frame = self.scal_ref;
856 if self.prev_frame == MISSING_REF {
857 return Err(DecoderError::MissingReference);
858 }
859 },
860 IVIFrameType::InterScal => {
861 self.prev_frame = self.scal_ref;
862 if self.prev_frame == MISSING_REF {
863 return Err(DecoderError::MissingReference);
864 }
865 },
866 IVIFrameType::Bidir => {
867 self.prev_frame = self.iref_1;
868 self.next_frame = self.iref_0;
869 if (self.prev_frame == MISSING_REF) || (self.next_frame == MISSING_REF) {
870 return Err(DecoderError::MissingReference);
871 }
872 },
873 _ => {},
874 };
875
876 let mut vinfo = if pic_hdr.transparent { self.vinfoa } else { self.vinfo };
877 vinfo.set_width(pic_hdr.width);
878 vinfo.set_height(pic_hdr.height);
879 let mut buftype = alloc_video_buffer(vinfo, 0)?;
880 self.realloc(&pic_hdr)?;
881 self.frames[self.cur_frame].realloc(&pic_hdr)?;
882
883 if !self.scalable {
884 for plane in 0..3 {
885 let num_bands = if plane == 0 { pic_hdr.luma_bands } else { pic_hdr.chroma_bands };
886 for band in 0..num_bands {
887 self.decode_band(&pic_hdr, dec, br, plane, band)?;
888 }
889 if let NABufferType::Video(ref mut vb) = buftype {
890 let mut frame = self.frames[self.cur_frame].clone();
891 if num_bands == 1 {
892 frame.fill_plane(vb, plane);
893 } else {
894 let dplane = if (plane == 1) || (plane == 2) { plane ^ 3 } else { plane };
895 let (w, h) = vb.get_dimensions(dplane);
896 let dstride = vb.get_stride(dplane);
897 let off = vb.get_offset(dplane);
898 let dst = vb.get_data_mut().unwrap();
899 dec.recombine_plane(&frame.plane_buf[plane], frame.plane_stride[plane], &mut dst[off..], dstride, w, h);
900 }
901 }
902 }
903 } else {
904 let mut bands_decoded = [[false; 10]; 3];
905 let mut num_decoded = 0;
906
907 let num_bands = [ pic_hdr.luma_bands, pic_hdr.chroma_bands, pic_hdr.chroma_bands ];
908
909 for plane in 0..3 {
910 for band in 0..num_bands[plane] {
911 if br.peek(8) == 0x01 { // skipped scalable bands
912 br.skip(8)?;
913 continue;
914 }
915 self.decode_band(&pic_hdr, dec, br, plane, band)?;
916 bands_decoded[plane][band] = true;
917 num_decoded += 1;
918 }
919 }
920 if (num_decoded < num_bands[0] + num_bands[1] + num_bands[2]) && (br.left() > 0) {
921 validate!(br.read(8)? == 0x00);
922 while br.peek(8) == 0x00 {
923 if br.skip(8).is_err() { // happens at the end of data
924 break;
925 }
926 }
927 validate!((br.tell() & 31) == 0);
928
929 for plane in 0..3 {
930 for band in 0..num_bands[plane] {
931 if bands_decoded[plane][band] || br.left() == 0 {
932 continue;
933 }
934 self.decode_band(&pic_hdr, dec, br, plane, band)?;
935 bands_decoded[plane][band] = true;
936 num_decoded += 1;
937 }
938 }
939 }
940
941 if let NABufferType::Video(ref mut vb) = buftype {
942 for plane in 0..3 {
943 let mut frame = self.frames[self.cur_frame].clone();
944 if num_bands[plane] == 1 {
945 frame.fill_plane(vb, plane);
946 } else {
947 let dplane = if (plane == 1) || (plane == 2) { plane ^ 3 } else { plane };
948 let (w, h) = vb.get_dimensions(dplane);
949 let dstride = vb.get_stride(dplane);
950 let off = vb.get_offset(dplane);
951 let dst = vb.get_data_mut().unwrap();
952 dec.recombine_plane(&frame.plane_buf[plane], frame.plane_stride[plane], &mut dst[off..], dstride, w, h);
953 }
954 }
955 }
956 }
957 if pic_hdr.transparent {
958 let mut frame = self.frames[self.cur_frame].clone();
959 let stride = frame.plane_stride[3];
960 read_trans_band_header(br, pic_hdr.width, pic_hdr.height, &mut frame.plane_buf[3], stride)?;
961 if let NABufferType::Video(ref mut vb) = buftype {
962 frame.fill_plane(vb, 3);
963 }
964 }
965
966 match self.ftype {
967 IVIFrameType::Intra | IVIFrameType::Intra1 | IVIFrameType::Inter => {
968 self.iref_1 = self.iref_0;
969 self.iref_0 = self.cur_frame;
970 self.scal_ref = self.cur_frame;
971 },
972 IVIFrameType::InterScal => {
973 self.scal_ref = self.cur_frame;
974 },
975 _ => {},
976 };
977
978 Ok(buftype)
979 }
980
981 pub fn decode_frame<'a>(&mut self, dec: &mut dyn IndeoXParser, br: &mut BitReader<'a>) -> DecoderResult<NABufferType> {
982 let res = self.decode_single_frame(dec, br);
983 if res.is_err() { return res; }
984 if (self.ftype == IVIFrameType::Intra) && (br.left() > 16) {
985 loop {
986 if br.left() < 8 { break; }
987 if br.read(8)? == 0 { break; }
988 }
989 loop {
990 if br.left() < 8 { break; }
991 if br.peek(8) != 0 { break; }
992 br.skip(8)?;
993 }
994 if br.left() > 24 {
995 let seq = br.peek(21);
996 if seq == 0xBFFF8 {
997 let res2 = self.decode_single_frame(dec, br);
998 if let Ok(res) = res2 {
999 self.bref = Some(res);
1000 }
1001 }
1002 self.ftype = IVIFrameType::Intra;
1003 }
1004 }
1005 if self.bref.is_some() && self.ftype == IVIFrameType::Inter {
1006 let mut bref: Option<NABufferType> = Some(res.unwrap());
1007 mem::swap(&mut bref, &mut self.bref);
1008 return Ok(bref.unwrap());
1009 }
1010 if let Ok(NABufferType::None) = res {
1011 if self.bref.is_some() {
1012 let mut bref: Option<NABufferType> = None;
1013 mem::swap(&mut bref, &mut self.bref);
1014 self.ftype = IVIFrameType::Inter;
1015 return Ok(bref.unwrap());
1016 }
1017 }
1018 res
1019 }
1020
1021 pub fn flush(&mut self) {
1022 self.prev_frame = MISSING_REF;
1023 self.next_frame = MISSING_REF;
1024 self.iref_0 = MISSING_REF;
1025 self.iref_1 = MISSING_REF;
1026 self.scal_ref = MISSING_REF;
1027 }
1028
1029 pub fn is_intra(&self) -> bool {
1030 self.ftype.is_intra()
1031 }
1032 pub fn get_frame_type(&self) -> FrameType {
1033 match self.ftype {
1034 IVIFrameType::Intra => { FrameType::I },
1035 IVIFrameType::Intra1 => { FrameType::I },
1036 IVIFrameType::Inter => { FrameType::P },
1037 IVIFrameType::InterDroppable => { FrameType::P },
1038 IVIFrameType::InterScal => { FrameType::P },
1039 IVIFrameType::Bidir => { FrameType::B },
1040 _ => { FrameType::Skip },
1041 }
1042 }
1043 }
1044
1045 pub struct RVMap {
1046 pub eob_sym: u32,
1047 pub esc_sym: u32,
1048 pub runtab: [u8; 256],
1049 pub valtab: [i8; 256],
1050 }
1051
1052 impl Clone for RVMap {
1053 fn clone(&self) -> RVMap {
1054 let mut runtab: [u8; 256] = [0; 256];
1055 let mut valtab: [i8; 256] = [0; 256];
1056 runtab.copy_from_slice(&self.runtab);
1057 valtab.copy_from_slice(&self.valtab);
1058 RVMap { eob_sym: self.eob_sym, esc_sym: self.esc_sym, runtab, valtab }
1059 }
1060 }
1061
1062 pub const IVI_ZERO_RVMAP: RVMap = RVMap { eob_sym: 0, esc_sym: 0, runtab: [0; 256], valtab: [0; 256] };
1063
1064 pub static IVI_RVMAPS: [RVMap; 9] = [
1065 RVMap { eob_sym: 5, esc_sym: 2, runtab: [
1066 1, 1, 0, 1, 1, 0, 1, 1, 2, 2, 1, 1, 1, 1, 3, 3,
1067 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 1, 1, 2, 2, 5, 5,
1068 1, 1, 3, 3, 1, 1, 6, 6, 1, 2, 1, 2, 7, 7, 1, 1,
1069 8, 8, 1, 1, 4, 2, 1, 4, 2, 1, 3, 3, 1, 1, 1, 9,
1070 9, 1, 2, 1, 2, 1, 5, 5, 1, 1, 10, 10, 1, 1, 3, 3,
1071 2, 2, 1, 1, 11, 11, 6, 4, 4, 1, 6, 1, 2, 1, 2, 12,
1072 8, 1, 12, 7, 8, 7, 1, 16, 1, 16, 1, 3, 3, 13, 1, 13,
1073 2, 2, 1, 15, 1, 5, 14, 15, 1, 5, 14, 1, 17, 8, 17, 8,
1074 1, 4, 4, 2, 2, 1, 25, 25, 24, 24, 1, 3, 1, 3, 1, 8,
1075 6, 7, 6, 1, 18, 8, 18, 1, 7, 23, 2, 2, 23, 1, 1, 21,
1076 22, 9, 9, 22, 19, 1, 21, 5, 19, 5, 1, 33, 20, 33, 20, 8,
1077 4, 4, 1, 32, 2, 2, 8, 3, 32, 26, 3, 1, 7, 7, 26, 6,
1078 1, 6, 1, 1, 16, 1, 10, 1, 10, 2, 16, 29, 28, 2, 29, 28,
1079 1, 27, 5, 8, 5, 27, 1, 8, 3, 7, 3, 31, 41, 31, 1, 41,
1080 6, 1, 6, 7, 4, 4, 1, 1, 2, 1, 2, 11, 34, 30, 11, 1,
1081 30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38 ],
1082 valtab: [
1083 1, -1, 0, 2, -2, 0, 3, -3, 1, -1, 4, -4, 5, -5, 1, -1,
1084 6, -6, 2, -2, 7, -7, 1, -1, 8, -8, 9, -9, 3, -3, 1, -1,
1085 10, -10, 2, -2, 11, -11, 1, -1, 12, 4, -12, -4, 1, -1, 13, -13,
1086 1, -1, 14, -14, 2, 5, 15, -2, -5, -15, -3, 3, 16, -16, 17, 1,
1087 -1, -17, 6, 18, -6, -18, 2, -2, 19, -19, 1, -1, 20, -20, 4, -4,
1088 7, -7, 21, -21, 1, -1, 2, 3, -3, 22, -2, -22, 8, 23, -8, 1,
1089 2, -23, -1, 2, -2, -2, 24, 1, -24, -1, 25, 5, -5, 1, -25, -1,
1090 9, -9, 26, 1, -26, 3, 1, -1, 27, -3, -1, -27, 1, 3, -1, -3,
1091 28, -4, 4, 10, -10, -28, 1, -1, 1, -1, 29, 6, -29, -6, 30, -4,
1092 3, 3, -3, -30, 1, 4, -1, 31, -3, 1, 11, -11, -1, -31, 32, -1,
1093 -1, 2, -2, 1, 1, -32, 1, 4, -1, -4, 33, -1, 1, 1, -1, 5,
1094 5, -5, -33, -1, -12, 12, -5, -7, 1, 1, 7, 34, 4, -4, -1, 4,
1095 -34, -4, 35, 36, -2, -35, -2, -36, 2, 13, 2, -1, 1, -13, 1, -1,
1096 37, 1, -5, 6, 5, -1, 38, -6, -8, 5, 8, -1, 1, 1, -37, -1,
1097 5, 39, -5, -5, 6, -6, -38, -39, -14, 40, 14, 2, 1, 1, -2, -40,
1098 -1, -2, 2, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1 ],
1099 },
1100 RVMap { eob_sym: 0, esc_sym: 38, runtab: [
1101 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 8, 6, 8, 7,
1102 7, 9, 9, 10, 10, 11, 11, 1, 12, 1, 12, 13, 13, 16, 14, 16,
1103 14, 15, 15, 17, 17, 18, 0, 18, 19, 20, 21, 19, 22, 21, 20, 22,
1104 25, 24, 2, 25, 24, 23, 23, 2, 26, 28, 26, 28, 29, 27, 29, 27,
1105 33, 33, 1, 32, 1, 3, 32, 30, 36, 3, 36, 30, 31, 31, 35, 34,
1106 37, 41, 34, 35, 37, 4, 41, 4, 49, 8, 8, 49, 40, 38, 5, 38,
1107 40, 39, 5, 39, 42, 43, 42, 7, 57, 6, 43, 44, 6, 50, 7, 44,
1108 57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58, 1, 51, 58, 1,
1109 52, 59, 53, 9, 52, 55, 55, 59, 53, 56, 54, 56, 54, 9, 64, 64,
1110 60, 63, 60, 63, 61, 62, 61, 62, 2, 10, 2, 10, 11, 1, 11, 13,
1111 12, 1, 12, 13, 16, 16, 8, 8, 14, 3, 3, 15, 14, 15, 4, 4,
1112 1, 17, 17, 5, 1, 7, 7, 5, 6, 1, 2, 2, 6, 22, 1, 25,
1113 21, 22, 8, 24, 1, 21, 25, 24, 8, 18, 18, 23, 9, 20, 23, 33,
1114 29, 33, 20, 1, 19, 1, 29, 36, 9, 36, 19, 41, 28, 57, 32, 3,
1115 28, 3, 1, 27, 49, 49, 1, 32, 26, 26, 2, 4, 4, 7, 57, 41,
1116 2, 7, 10, 5, 37, 16, 10, 27, 8, 8, 13, 16, 37, 13, 1, 5 ],
1117 valtab: [
1118 0, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1,
1119 -1, 1, -1, 1, -1, 1, -1, 2, 1, -2, -1, 1, -1, 1, 1, -1,
1120 -1, 1, -1, 1, -1, 1, 0, -1, 1, 1, 1, -1, 1, -1, -1, -1,
1121 1, 1, 2, -1, -1, 1, -1, -2, 1, 1, -1, -1, 1, 1, -1, -1,
1122 1, -1, 3, 1, -3, 2, -1, 1, 1, -2, -1, -1, -1, 1, 1, 1,
1123 1, 1, -1, -1, -1, 2, -1, -2, 1, 2, -2, -1, 1, 1, 2, -1,
1124 -1, 1, -2, -1, 1, 1, -1, 2, 1, 2, -1, 1, -2, -1, -2, -1,
1125 -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 4, -1, -1, -4,
1126 1, 1, 1, 2, -1, -1, 1, -1, -1, 1, -1, -1, 1, -2, 1, -1,
1127 1, 1, -1, -1, 1, 1, -1, -1, 3, 2, -3, -2, 2, 5, -2, 2,
1128 2, -5, -2, -2, -2, 2, -3, 3, 2, 3, -3, 2, -2, -2, 3, -3,
1129 6, 2, -2, 3, -6, 3, -3, -3, 3, 7, -4, 4, -3, 2, -7, 2,
1130 2, -2, -4, 2, 8, -2, -2, -2, 4, 2, -2, 2, 3, 2, -2, -2,
1131 2, 2, -2, -8, -2, 9, -2, 2, -3, -2, 2, -2, 2, 2, 2, 4,
1132 -2, -4, 10, 2, 2, -2, -9, -2, 2, -2, 5, 4, -4, 4, -2, 2,
1133 -5, -4, -3, 4, 2, -3, 3, -2, -5, 5, 3, 3, -2, -3, -10, -4 ],
1134 },
1135 RVMap { eob_sym: 2, esc_sym: 11, runtab: [
1136 1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 0, 1, 1, 5, 5,
1137 2, 2, 6, 6, 7, 7, 1, 8, 1, 8, 3, 3, 9, 9, 1, 2,
1138 2, 1, 4, 10, 4, 10, 11, 11, 1, 5, 12, 12, 1, 5, 13, 13,
1139 3, 3, 6, 6, 2, 2, 14, 14, 16, 16, 15, 7, 15, 8, 8, 7,
1140 1, 1, 17, 17, 4, 4, 1, 1, 18, 18, 2, 2, 5, 5, 25, 3,
1141 9, 3, 25, 9, 19, 24, 19, 24, 1, 21, 20, 1, 21, 22, 20, 22,
1142 23, 23, 8, 6, 33, 6, 8, 33, 7, 7, 26, 26, 1, 32, 1, 32,
1143 28, 4, 28, 10, 29, 27, 27, 10, 41, 4, 29, 2, 2, 41, 36, 31,
1144 49, 31, 34, 30, 34, 36, 30, 35, 1, 49, 11, 5, 35, 11, 1, 3,
1145 3, 5, 37, 37, 8, 40, 8, 40, 12, 12, 42, 42, 1, 38, 16, 57,
1146 1, 6, 16, 39, 38, 6, 7, 7, 13, 13, 39, 43, 2, 43, 57, 2,
1147 50, 9, 44, 9, 50, 4, 15, 48, 44, 4, 1, 15, 48, 14, 14, 1,
1148 45, 45, 8, 3, 5, 8, 51, 47, 3, 46, 46, 47, 5, 51, 1, 17,
1149 17, 58, 1, 58, 2, 52, 52, 2, 53, 7, 59, 6, 6, 56, 53, 55,
1150 7, 55, 1, 54, 59, 56, 54, 10, 1, 10, 4, 60, 1, 60, 8, 4,
1151 8, 64, 64, 61, 1, 63, 3, 63, 62, 61, 5, 11, 5, 3, 11, 62 ],
1152 valtab: [
1153 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 0, 3, -3, 1, -1,
1154 2, -2, 1, -1, 1, -1, 4, 1, -4, -1, 2, -2, 1, -1, 5, 3,
1155 -3, -5, 2, 1, -2, -1, 1, -1, 6, 2, 1, -1, -6, -2, 1, -1,
1156 3, -3, 2, -2, 4, -4, 1, -1, 1, -1, 1, 2, -1, 2, -2, -2,
1157 7, -7, 1, -1, 3, -3, 8, -8, 1, -1, 5, -5, 3, -3, 1, 4,
1158 2, -4, -1, -2, 1, 1, -1, -1, 9, 1, 1, -9, -1, 1, -1, -1,
1159 1, -1, 3, -3, 1, 3, -3, -1, 3, -3, 1, -1, 10, 1, -10, -1,
1160 1, 4, -1, 2, 1, -1, 1, -2, 1, -4, -1, 6, -6, -1, 1, 1,
1161 1, -1, 1, 1, -1, -1, -1, 1, 11, -1, -2, 4, -1, 2, -11, 5,
1162 -5, -4, -1, 1, 4, 1, -4, -1, -2, 2, 1, -1, 12, 1, -2, 1,
1163 -12, 4, 2, 1, -1, -4, 4, -4, 2, -2, -1, 1, 7, -1, -1, -7,
1164 -1, -3, 1, 3, 1, 5, 2, 1, -1, -5, 13, -2, -1, 2, -2, -13,
1165 1, -1, 5, 6, 5, -5, 1, 1, -6, 1, -1, -1, -5, -1, 14, 2,
1166 -2, 1, -14, -1, 8, 1, -1, -8, 1, 5, 1, 5, -5, 1, -1, 1,
1167 -5, -1, 15, 1, -1, -1, -1, 3, -15, -3, 6, 1, 16, -1, 6, -6,
1168 -6, 1, -1, 1, -16, 1, 7, -1, 1, -1, -6, -3, 6, -7, 3, -1 ]
1169 },
1170 RVMap { eob_sym: 0, esc_sym: 35, runtab: [
1171 0, 1, 1, 2, 2, 3, 3, 4, 4, 1, 1, 5, 5, 6, 6, 7,
1172 7, 8, 8, 9, 9, 2, 2, 10, 10, 1, 1, 11, 11, 12, 12, 3,
1173 3, 13, 13, 0, 14, 14, 16, 15, 16, 15, 4, 4, 17, 1, 17, 1,
1174 5, 5, 18, 18, 2, 2, 6, 6, 8, 19, 7, 8, 7, 19, 20, 20,
1175 21, 21, 22, 24, 22, 24, 23, 23, 1, 1, 25, 25, 3, 3, 26, 26,
1176 9, 9, 27, 27, 28, 28, 33, 29, 4, 33, 29, 1, 4, 1, 32, 32,
1177 2, 2, 31, 10, 30, 10, 30, 31, 34, 34, 5, 5, 36, 36, 35, 41,
1178 35, 11, 41, 11, 37, 1, 8, 8, 37, 6, 1, 6, 40, 7, 7, 40,
1179 12, 38, 12, 39, 39, 38, 49, 13, 49, 13, 3, 42, 3, 42, 16, 16,
1180 43, 43, 14, 14, 1, 1, 44, 15, 44, 15, 2, 2, 57, 48, 50, 48,
1181 57, 50, 4, 45, 45, 4, 46, 47, 47, 46, 1, 51, 1, 17, 17, 51,
1182 8, 9, 9, 5, 58, 8, 58, 5, 52, 52, 55, 56, 53, 56, 55, 59,
1183 59, 53, 54, 1, 6, 54, 7, 7, 6, 1, 2, 3, 2, 3, 64, 60,
1184 60, 10, 10, 64, 61, 62, 61, 63, 1, 63, 62, 1, 18, 24, 18, 4,
1185 25, 4, 8, 21, 21, 1, 24, 22, 25, 22, 8, 11, 19, 11, 23, 1,
1186 20, 23, 19, 20, 5, 12, 5, 1, 16, 2, 12, 13, 2, 13, 1, 16 ],
1187 valtab: [
1188 0, 1, -1, 1, -1, 1, -1, 1, -1, 2, -2, 1, -1, 1, -1, 1,
1189 -1, 1, -1, 1, -1, 2, -2, 1, -1, 3, -3, 1, -1, 1, -1, 2,
1190 -2, 1, -1, 0, 1, -1, 1, 1, -1, -1, 2, -2, 1, 4, -1, -4,
1191 2, -2, 1, -1, -3, 3, 2, -2, 2, 1, 2, -2, -2, -1, 1, -1,
1192 1, -1, 1, 1, -1, -1, 1, -1, 5, -5, 1, -1, 3, -3, 1, -1,
1193 2, -2, 1, -1, 1, -1, 1, 1, 3, -1, -1, 6, -3, -6, -1, 1,
1194 4, -4, 1, 2, 1, -2, -1, -1, 1, -1, 3, -3, 1, -1, 1, 1,
1195 -1, 2, -1, -2, 1, 7, -3, 3, -1, 3, -7, -3, 1, -3, 3, -1,
1196 2, 1, -2, 1, -1, -1, 1, 2, -1, -2, -4, -1, 4, 1, 2, -2,
1197 1, -1, -2, 2, 8, -8, -1, 2, 1, -2, -5, 5, 1, -1, -1, 1,
1198 -1, 1, 4, -1, 1, -4, -1, -1, 1, 1, 9, 1, -9, 2, -2, -1,
1199 -4, 3, -3, -4, -1, 4, 1, 4, 1, -1, 1, -1, 1, 1, -1, 1,
1200 -1, -1, -1, 10, 4, 1, 4, -4, -4, -10, 6, 5, -6, -5, 1, -1,
1201 1, 3, -3, -1, 1, -1, -1, -1, 11, 1, 1, -11, -2, -2, 2, 5,
1202 -2, -5, -5, 2, -2, 12, 2, -2, 2, 2, 5, -3, -2, 3, -2, -12,
1203 -2, 2, 2, 2, -5, 3, 5, 13, -3, 7, -3, -3, -7, 3, -13, 3 ]
1204 },
1205 RVMap { eob_sym: 0, esc_sym: 34, runtab: [
1206 0, 1, 1, 1, 2, 2, 1, 3, 3, 1, 1, 1, 4, 4, 1, 5,
1207 2, 1, 5, 2, 1, 1, 6, 6, 1, 1, 1, 1, 1, 7, 3, 1,
1208 2, 3, 0, 1, 2, 7, 1, 1, 1, 8, 1, 1, 8, 1, 1, 1,
1209 9, 1, 9, 1, 2, 1, 1, 2, 1, 1, 10, 4, 1, 10, 1, 4,
1210 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 2, 1, 5, 1, 1, 1,
1211 2, 5, 1, 11, 1, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1212 2, 1, 6, 1, 6, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 12,
1213 3, 1, 12, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1,
1214 4, 1, 1, 1, 2, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1,
1215 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 5,
1216 1, 1, 1, 1, 1, 7, 1, 7, 1, 1, 2, 3, 1, 1, 1, 1,
1217 5, 1, 1, 1, 1, 1, 1, 2, 13, 1, 1, 1, 1, 1, 1, 1,
1218 1, 1, 1, 1, 1, 1, 1, 1, 13, 2, 1, 1, 4, 1, 1, 1,
1219 3, 1, 6, 1, 1, 1, 14, 1, 1, 1, 1, 1, 14, 6, 1, 1,
1220 1, 1, 15, 2, 4, 1, 2, 3, 15, 1, 1, 1, 8, 1, 1, 8,
1221 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1 ],
1222 valtab: [
1223 0, 1, -1, 2, 1, -1, -2, 1, -1, 3, -3, 4, 1, -1, -4, 1,
1224 2, 5, -1, -2, -5, 6, 1, -1, -6, 7, -7, 8, -8, 1, 2, 9,
1225 3, -2, 0, -9, -3, -1, 10, -10, 11, 1, -11, 12, -1, -12, 13, -13,
1226 1, 14, -1, -14, 4, 15, -15, -4, 16, -16, 1, 2, 17, -1, -17, -2,
1227 18, -18, 19, -19, 20, 3, -20, 21, -21, -3, 5, 22, 2, -22, -23, 23,
1228 -5, -2, 24, 1, -24, -1, 25, -25, 26, -26, -27, 27, 28, 29, -28, -29,
1229 6, 30, 2, -31, -2, -30, 31, -6, -32, 32, 33, -33, 34, -35, -34, 1,
1230 4, -36, -1, 35, 37, 36, 7, -37, 38, -4, -38, 39, 41, 40, -40, -39,
1231 3, 42, -43, -41, -7, -42, 43, -3, 44, -44, 45, -45, 46, 47, 8, -47,
1232 -48, -46, 50, -50, 48, 49, 51, -49, 52, -52, 5, -51, -8, -53, 53, 3,
1233 -56, 56, 55, 54, -54, 2, 60, -2, -55, 58, 9, -5, 59, 57, -57, -63,
1234 -3, -58, -60, -61, 61, -59, -62, -9, 1, 64, 62, 69, -64, 63, 65, -67,
1235 -68, 66, -65, 68, -66, -69, 67, -70, -1, 10, 71, -71, 4, 73, 72, 70,
1236 6, -76, -3, 74, -78, -74, 1, 78, 80, -72, -75, 76, -1, 3, -73, 79,
1237 75, 77, 1, 11, -4, -79, -10, -6, -1, -77, -83, -80, 2, 81, -84, -2,
1238 83, -81, 82, -82, 84, -87, -86, 85, -11, -85, 86, -89, 87, -88, 88, 89 ]
1239 },
1240 RVMap { eob_sym: 2, esc_sym: 33, runtab: [
1241 1, 1, 0, 2, 1, 2, 1, 3, 3, 1, 1, 4, 4, 2, 2, 1,
1242 1, 5, 5, 6, 1, 6, 1, 7, 7, 3, 3, 2, 8, 2, 8, 1,
1243 1, 0, 9, 9, 1, 1, 10, 4, 10, 4, 11, 11, 2, 1, 2, 1,
1244 12, 12, 3, 3, 1, 1, 13, 5, 5, 13, 14, 1, 1, 14, 2, 2,
1245 6, 6, 15, 1, 1, 15, 16, 4, 7, 16, 4, 7, 1, 1, 3, 3,
1246 8, 8, 2, 2, 1, 1, 17, 17, 1, 1, 18, 18, 5, 5, 2, 2,
1247 1, 1, 9, 19, 9, 19, 20, 3, 3, 20, 1, 10, 21, 1, 10, 4,
1248 4, 21, 22, 6, 6, 22, 1, 1, 23, 24, 2, 2, 23, 24, 11, 1,
1249 1, 11, 7, 25, 7, 1, 1, 25, 8, 8, 3, 26, 3, 1, 12, 2,
1250 2, 26, 1, 12, 5, 5, 27, 4, 1, 4, 1, 27, 28, 1, 28, 13,
1251 1, 13, 2, 29, 2, 1, 32, 6, 1, 30, 14, 29, 14, 6, 3, 31,
1252 3, 1, 30, 1, 32, 31, 33, 9, 33, 1, 1, 7, 9, 7, 2, 2,
1253 1, 1, 4, 36, 34, 4, 5, 10, 10, 5, 34, 1, 1, 35, 8, 8,
1254 36, 3, 35, 1, 15, 3, 2, 1, 16, 15, 16, 2, 37, 1, 37, 1,
1255 1, 1, 6, 6, 38, 1, 38, 11, 1, 39, 39, 40, 11, 2, 41, 4,
1256 40, 1, 2, 4, 1, 1, 1, 41, 3, 1, 3, 1, 5, 7, 5, 7 ],
1257 valtab: [
1258 1, -1, 0, 1, 2, -1, -2, 1, -1, 3, -3, 1, -1, 2, -2, 4,
1259 -4, 1, -1, 1, 5, -1, -5, 1, -1, 2, -2, 3, 1, -3, -1, 6,
1260 -6, 0, 1, -1, 7, -7, 1, 2, -1, -2, 1, -1, 4, 8, -4, -8,
1261 1, -1, 3, -3, 9, -9, 1, 2, -2, -1, 1, 10, -10, -1, 5, -5,
1262 2, -2, 1, 11, -11, -1, 1, 3, 2, -1, -3, -2, 12, -12, 4, -4,
1263 2, -2, -6, 6, 13, -13, 1, -1, 14, -14, 1, -1, 3, -3, 7, -7,
1264 15, -15, 2, 1, -2, -1, 1, 5, -5, -1, -16, 2, 1, 16, -2, 4,
1265 -4, -1, 1, 3, -3, -1, 17, -17, 1, 1, -8, 8, -1, -1, 2, 18,
1266 -18, -2, 3, 1, -3, 19, -19, -1, 3, -3, 6, 1, -6, 20, 2, 9,
1267 -9, -1, -20, -2, 4, -4, 1, -5, 21, 5, -21, -1, 1, -22, -1, 2,
1268 22, -2, 10, 1, -10, 23, 1, 4, -23, 1, 2, -1, -2, -4, -7, 1,
1269 7, -24, -1, 24, -1, -1, 1, 3, -1, -25, 25, 4, -3, -4, 11, -11,
1270 26, -26, 6, 1, 1, -6, -5, -3, 3, 5, -1, -27, 27, 1, 4, -4,
1271 -1, -8, -1, 28, 2, 8, -12, -28, -2, -2, 2, 12, -1, 29, 1, -29,
1272 30, -30, 5, -5, 1, -31, -1, 3, 31, -1, 1, 1, -3, -13, 1, -7,
1273 -1, -32, 13, 7, 32, 33, -33, -1, -9, -34, 9, 34, -6, 5, 6, -5 ]
1274 },
1275 RVMap { eob_sym: 2, esc_sym: 13, runtab: [
1276 1, 1, 0, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 0, 2, 2,
1277 4, 1, 4, 1, 1, 1, 5, 5, 1, 1, 6, 6, 2, 2, 1, 1,
1278 3, 3, 7, 7, 1, 1, 8, 8, 1, 1, 2, 2, 1, 9, 1, 9,
1279 4, 4, 10, 1, 1, 10, 1, 1, 11, 11, 3, 3, 1, 2, 1, 2,
1280 1, 1, 12, 12, 5, 5, 1, 1, 13, 1, 1, 13, 2, 2, 1, 1,
1281 6, 6, 1, 1, 4, 14, 4, 14, 3, 1, 3, 1, 1, 1, 15, 7,
1282 15, 2, 2, 7, 1, 1, 1, 8, 1, 8, 16, 16, 1, 1, 1, 1,
1283 2, 1, 1, 2, 1, 1, 3, 5, 5, 3, 4, 1, 1, 4, 1, 1,
1284 17, 17, 9, 1, 1, 9, 2, 2, 1, 1, 10, 10, 1, 6, 1, 1,
1285 6, 18, 1, 1, 18, 1, 1, 1, 2, 2, 3, 1, 3, 1, 1, 1,
1286 4, 1, 19, 1, 19, 7, 1, 1, 20, 1, 4, 20, 1, 7, 11, 2,
1287 1, 11, 21, 2, 8, 5, 1, 8, 1, 5, 21, 1, 1, 1, 22, 1,
1288 1, 22, 1, 1, 3, 3, 1, 23, 2, 12, 24, 1, 1, 2, 1, 1,
1289 12, 23, 1, 1, 24, 1, 1, 1, 4, 1, 1, 1, 2, 1, 6, 6,
1290 4, 2, 1, 1, 1, 1, 1, 1, 1, 14, 13, 3, 1, 25, 9, 25,
1291 14, 1, 9, 3, 13, 1, 1, 1, 1, 1, 10, 1, 1, 2, 10, 2 ],
1292 valtab: [
1293 -20, -1, 0, 2, -2, 1, -1, 3, -3, 1, -1, 4, -4, 0, 2, -2,
1294 1, 5, -1, -5, 6, -6, 1, -1, 7, -7, 1, -1, 3, -3, 8, -8,
1295 2, -2, 1, -1, 9, -9, 1, -1, 10, -10, 4, -4, 11, 1, -11, -1,
1296 2, -2, 1, 12, -12, -1, 13, -13, 1, -1, 3, -3, 14, 5, -14, -5,
1297 -15, 15, -1, 1, 2, -2, 16, -16, 1, 17, -17, -1, 6, -6, 18, -18,
1298 2, -2, -19, 19, -3, 1, 3, -1, 4, 20, -4, 1, -21, 21, 1, 2,
1299 -1, -7, 7, -2, 22, -22, 23, 2, -23, -2, 1, -1, -24, 24, -25, 25,
1300 -8, -26, 26, 8, -27, 27, 5, 3, -3, -5, -4, 28, -28, 4, 29, -29,
1301 1, -1, -2, -30, 30, 2, 9, -9, -31, 31, 2, -2, -32, 3, 32, -33,
1302 -3, 1, 33, -34, -1, 34, -35, 35, -10, 10, -6, 36, 6, -36, 37, -37,
1303 -5, 38, 1, -38, -1, 3, 39, -39, -1, 40, 5, 1, -40, -3, 2, -11,
1304 -41, -2, 1, 11, -3, -4, 41, 3, 42, 4, -1, -43, -42, 43, 1, -44,
1305 45, -1, 44, -45, -7, 7, -46, 1, -12, 2, 1, -47, 46, 12, 47, 48,
1306 -2, -1, -48, 49, -1, -50, -49, 50, -6, -51, 51, 52, -13, 53, -4, 4,
1307 6, 13, -53, -52, -54, 55, 54, -55, -56, -2, 2, -8, 56, 1, -3, -1,
1308 2, 58, 3, 8, -2, 57, -58, -60, -59, -57, -3, 60, 59, -14, 3, 14 ]
1309 },
1310 RVMap { eob_sym: 2, esc_sym: 38, runtab: [
1311 1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 5, 5, 1, 1, 6,
1312 6, 2, 2, 7, 7, 8, 8, 1, 1, 3, 3, 9, 9, 10, 10, 1,
1313 1, 2, 2, 4, 4, 11, 0, 11, 12, 12, 13, 13, 1, 1, 5, 5,
1314 14, 14, 15, 16, 15, 16, 3, 3, 1, 6, 1, 6, 2, 2, 7, 7,
1315 8, 8, 17, 17, 1, 1, 4, 4, 18, 18, 2, 2, 1, 19, 1, 20,
1316 19, 20, 21, 21, 3, 3, 22, 22, 5, 5, 24, 1, 1, 23, 9, 23,
1317 24, 9, 2, 2, 10, 1, 1, 10, 6, 6, 25, 4, 4, 25, 7, 7,
1318 26, 8, 1, 8, 3, 1, 26, 3, 11, 11, 27, 27, 2, 28, 1, 2,
1319 28, 1, 12, 12, 5, 5, 29, 13, 13, 29, 32, 1, 1, 33, 31, 30,
1320 32, 4, 30, 33, 4, 31, 3, 14, 1, 1, 3, 34, 34, 2, 2, 14,
1321 6, 6, 35, 36, 35, 36, 1, 15, 1, 16, 16, 15, 7, 9, 7, 9,
1322 37, 8, 8, 37, 1, 1, 39, 2, 38, 39, 2, 40, 5, 38, 40, 5,
1323 3, 3, 4, 4, 10, 10, 1, 1, 1, 1, 41, 2, 41, 2, 6, 6,
1324 1, 1, 11, 42, 11, 43, 3, 42, 3, 17, 4, 43, 1, 17, 7, 1,
1325 8, 44, 4, 7, 44, 5, 8, 2, 5, 1, 2, 48, 45, 1, 12, 45,
1326 12, 48, 13, 13, 1, 9, 9, 46, 1, 46, 47, 47, 49, 18, 18, 49 ],
1327 valtab: [
1328 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 1, -1, 3, -3, 1,
1329 -1, -2, 2, 1, -1, 1, -1, 4, -4, -2, 2, 1, -1, 1, -1, 5,
1330 -5, -3, 3, 2, -2, 1, 0, -1, 1, -1, 1, -1, 6, -6, 2, -2,
1331 1, -1, 1, 1, -1, -1, -3, 3, 7, 2, -7, -2, -4, 4, 2, -2,
1332 2, -2, 1, -1, 8, -8, 3, -3, 1, -1, -5, 5, 9, 1, -9, 1,
1333 -1, -1, 1, -1, -4, 4, 1, -1, 3, -3, 1, -10, 10, 1, 2, -1,
1334 -1, -2, 6, -6, 2, 11, -11, -2, 3, -3, 1, -4, 4, -1, 3, -3,
1335 1, 3, 12, -3, -5, -12, -1, 5, 2, -2, 1, -1, -7, 1, 13, 7,
1336 -1, -13, 2, -2, 4, -4, 1, 2, -2, -1, 1, 14, -14, 1, 1, 1,
1337 -1, -5, -1, -1, 5, -1, -6, 2, -15, 15, 6, 1, -1, -8, 8, -2,
1338 -4, 4, 1, 1, -1, -1, 16, 2, -16, -2, 2, -2, 4, 3, -4, -3,
1339 -1, -4, 4, 1, -17, 17, -1, -9, 1, 1, 9, 1, -5, -1, -1, 5,
1340 -7, 7, 6, -6, 3, -3, 18, -18, 19, -19, 1, -10, -1, 10, -5, 5,
1341 20, -20, -3, 1, 3, 1, 8, -1, -8, 2, 7, -1, -21, -2, 5, 21,
1342 5, -1, -7, -5, 1, -6, -5, -11, 6, 22, 11, 1, 1, -22, -3, -1,
1343 3, -1, 3, -3, -23, 4, -4, 1, 23, -1, 1, -1, 1, -2, 2, -1 ]
1344 },
1345 RVMap { eob_sym: 4, esc_sym: 11, runtab: [
1346 1, 1, 1, 1, 0, 2, 2, 1, 1, 3, 3, 0, 1, 1, 2, 2,
1347 4, 4, 1, 1, 5, 5, 1, 1, 2, 2, 3, 3, 6, 6, 1, 1,
1348 7, 7, 8, 1, 8, 2, 2, 1, 4, 4, 1, 3, 1, 3, 9, 9,
1349 2, 2, 1, 5, 1, 5, 10, 10, 1, 1, 11, 11, 3, 6, 3, 4,
1350 4, 6, 2, 2, 1, 12, 1, 12, 7, 13, 7, 13, 1, 1, 8, 8,
1351 2, 2, 14, 14, 16, 15, 16, 5, 5, 1, 3, 15, 1, 3, 4, 4,
1352 1, 1, 17, 17, 2, 2, 6, 6, 1, 18, 1, 18, 22, 21, 22, 21,
1353 25, 24, 25, 19, 9, 20, 9, 23, 19, 24, 20, 3, 23, 7, 3, 1,
1354 1, 7, 28, 26, 29, 5, 28, 26, 5, 8, 29, 4, 8, 27, 2, 2,
1355 4, 27, 1, 1, 10, 36, 10, 33, 33, 36, 30, 1, 32, 32, 1, 30,
1356 6, 31, 31, 35, 3, 6, 11, 11, 3, 2, 35, 2, 34, 1, 34, 1,
1357 37, 37, 12, 7, 12, 5, 41, 5, 4, 7, 1, 8, 13, 4, 1, 41,
1358 13, 38, 8, 38, 9, 1, 40, 40, 9, 1, 39, 2, 2, 49, 39, 42,
1359 3, 3, 14, 16, 49, 14, 16, 42, 43, 43, 6, 6, 15, 1, 1, 15,
1360 44, 44, 1, 1, 50, 48, 4, 5, 4, 7, 5, 2, 10, 10, 48, 7,
1361 50, 45, 2, 1, 45, 8, 8, 1, 46, 46, 3, 47, 47, 3, 1, 1 ],
1362 valtab: [
1363 1, -1, 2, -2, 0, 1, -1, 3, -3, 1, -1, 0, 4, -4, 2, -2,
1364 1, -1, 5, -5, 1, -1, 6, -6, 3, -3, 2, -2, 1, -1, 7, -7,
1365 1, -1, 1, 8, -1, 4, -4, -8, 2, -2, 9, 3, -9, -3, 1, -1,
1366 5, -5, 10, 2, -10, -2, 1, -1, 11, -11, 1, -1, -4, 2, 4, 3,
1367 -3, -2, 6, -6, 12, 1, -12, -1, 2, 1, -2, -1, 13, -13, 2, -2,
1368 7, -7, 1, -1, 1, 1, -1, 3, -3, 14, 5, -1, -14, -5, 4, -4,
1369 15, -15, 1, -1, 8, -8, -3, 3, 16, 1, -16, -1, 1, 1, -1, -1,
1370 1, 1, -1, 1, 2, 1, -2, 1, -1, -1, -1, 6, -1, 3, -6, 17,
1371 -17, -3, 1, 1, 1, 4, -1, -1, -4, 3, -1, 5, -3, -1, -9, 9,
1372 -5, 1, 18, -18, 2, 1, -2, 1, -1, -1, 1, 19, -1, 1, -19, -1,
1373 4, 1, -1, 1, 7, -4, -2, 2, -7, 10, -1, -10, 1, 20, -1, -20,
1374 1, -1, 2, 4, -2, 5, 1, -5, 6, -4, 21, 4, 2, -6, -21, -1,
1375 -2, 1, -4, -1, -3, 22, -1, 1, 3, -22, -1, 11, -11, 1, 1, 1,
1376 8, -8, 2, 2, -1, -2, -2, -1, 1, -1, -5, 5, 2, 23, -23, -2,
1377 1, -1, 24, -24, -1, -1, 7, 6, -7, 5, -6, 12, -3, 3, 1, -5,
1378 1, 1, -12, 25, -1, -5, 5, -25, -1, 1, 9, 1, -1, -9, 26, -26 ]
1379 }
1380 ];
NihAV is a research multimedia framework