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indeo4: use MD5-based testing
[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
231fn 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<()> {
232 let mut idx: isize = -1;
233 let quant_mat = if is_intra { tables.quant_intra } else { tables.quant_inter };
234 while idx <= 64 {
235 let c = br.read_ivi_cb(blk_cb)?;
236 if c == rvmap.eob_sym { break; }
237 let run;
238 let val: i32;
239 if c != rvmap.esc_sym {
240 validate!(c < 256);
241 run = rvmap.runtab[c as usize] as isize;
242 val = rvmap.valtab[c as usize] as i32;
243 } else {
244 run = (br.read_ivi_cb(blk_cb)? as isize) + 1;
245 let lo = br.read_ivi_cb(blk_cb)?;
246 let hi = br.read_ivi_cb(blk_cb)?;
247 let v = (hi << 6) + lo;
248 if v == 0 {
249 val = 0; // should not happen but still...
250 } else {
098dcca9 251 let vv = (v >> 1) as i32;
01c971c5 252 if (v & 1) != 0 {
098dcca9 253 val = vv + 1;
01c971c5 254 } else {
098dcca9 255 val = -vv;
01c971c5
KS		 256 }
257 }
258 }
259 idx += run;
260 validate!((idx >= 0) && (idx < 64));
261
262 let spos = tables.scan[idx as usize];
f2af8eca 263 let q = (u32::from(quant_mat[spos]) * u32::from(quant)) >> 9;
01c971c5
KS		 264 if q > 1 {
265 let qq = q as i32;
266 let bias = (((q ^ 1) - 1) >> 1) as i32;
267 coeffs[spos] = val * qq;
268 if val > 0 { coeffs[spos] += bias; }
269 else { coeffs[spos] -= bias; }
270 } else {
271 coeffs[spos] = val;
272 }
273 }
274 if is_intra && is_2d {
275 *prev_dc += coeffs[0];
276 coeffs[0] = *prev_dc;
277 }
278 (transform)(coeffs);
279 Ok(())
280}
281fn 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<()> {
282 let mut idx: isize = -1;
283 let quant_mat = if is_intra { tables.quant_intra } else { tables.quant_inter };
284 while idx <= 64 {
285 let c = br.read_ivi_cb(blk_cb)?;
286 if c == rvmap.eob_sym { break; }
287 let run;
288 let val: i32;
289 if c != rvmap.esc_sym {
290 validate!(c < 256);
291 run = rvmap.runtab[c as usize] as isize;
292 val = rvmap.valtab[c as usize] as i32;
293 } else {
294 run = (br.read_ivi_cb(blk_cb)? as isize) + 1;
295 let lo = br.read_ivi_cb(blk_cb)?;
296 let hi = br.read_ivi_cb(blk_cb)?;
30ac5d4e 297 let v = (hi << 6) + lo;
01c971c5
KS		 298 if v == 0 {
299 val = 0; // should not happen but still...
300 } else {
301 if (v & 1) != 0 {
302 val = ((v >> 1) as i32) + 1;
303 } else {
304 val = -((v >> 1) as i32);
305 }
306 }
307 }
308 idx += run;
309 validate!((idx >= 0) && (idx < 16));
310
311 let spos = tables.scan[idx as usize];
f2af8eca 312 let q = (u32::from(quant_mat[spos]) * u32::from(quant)) >> 9;
01c971c5
KS		 313 if q > 1 {
314 let qq = q as i32;
315 let bias = (((q ^ 1) - 1) >> 1) as i32;
316 coeffs[spos] = val * qq;
317 if val > 0 { coeffs[spos] += bias; }
318 else { coeffs[spos] -= bias; }
319 } else {
320 coeffs[spos] = val;
321 }
322 }
323 if is_intra && is_2d {
324 *prev_dc += coeffs[0];
325 coeffs[0] = *prev_dc;
326 }
327 (transform)(coeffs);
328 Ok(())
329}
330
098dcca9
KS		 331fn put_block(frame: &mut [i16], offs: usize, stride: usize, blk: &[i32], blk_size: usize) {
332 unsafe {
f2af8eca 333 let mut dptr = frame.as_mut_ptr().add(offs);
098dcca9
KS		 334 for y in 0..blk_size {
335 for x in 0..blk_size {
f2af8eca 336 *dptr.add(x) = blk[x + y * blk_size] as i16;
098dcca9 337 }
f2af8eca 338 dptr = dptr.add(stride);
01c971c5 339 }
01c971c5
KS		 340 }
341}
342
098dcca9
KS		 343fn add_block(frame: &mut [i16], offs: usize, stride: usize, blk: &[i32], blk_size: usize) {
344 unsafe {
f2af8eca 345 let mut dptr = frame.as_mut_ptr().add(offs);
098dcca9
KS		 346 for y in 0..blk_size {
347 for x in 0..blk_size {
f2af8eca 348 *dptr.add(x) = (*dptr.add(x)).wrapping_add(blk[x + y * blk_size] as i16);
098dcca9 349 }
f2af8eca 350 dptr = dptr.add(stride);
01c971c5 351 }
01c971c5
KS		 352 }
353}
354
355struct FrameData {
356 plane_buf: [Vec<i16>; 4],
357 plane_stride: [usize; 4],
358 pic_hdr: PictureHeader,
359}
360
361fn align(val: usize, bits: u8) -> usize {
362 let mask = (1 << bits) - 1;
363 (val + mask) & !mask
364}
365
366impl FrameData {
08a1fab7
KS		 367 fn new() -> NABufferRef<Self> {
368 NABufferRef::new(FrameData {
01c971c5
KS		 369 plane_buf: [Vec::new(), Vec::new(), Vec::new(), Vec::new()],
370 plane_stride: [0, 0, 0, 0],
371 pic_hdr: PictureHeader::new_null(IVIFrameType::Intra),
08a1fab7 372 })
01c971c5
KS		 373 }
374 fn realloc(&mut self, pic_hdr: &PictureHeader) -> DecoderResult<()> {
375 let width = align(pic_hdr.width, 6);
376 let height = align(pic_hdr.height, 6);
377
378 let stride = width;
379 self.plane_buf[0].resize(stride * height, 0);
380 self.plane_stride[0] = stride;
381 for plane in 1..3 {
382 self.plane_buf[plane].resize((stride >> 1) * (height >> 1), 0);
383 self.plane_stride[plane] = stride >> 1;
384 }
385 if pic_hdr.transparent {
386 self.plane_buf[3].resize(stride * height, 0);
387 self.plane_stride[3] = stride;
388 }
389 self.pic_hdr = *pic_hdr;
390 Ok(())
391 }
392 fn fill_plane(&mut self, vb: &mut NAVideoBuffer<u8>, plane: usize) {
009a04a9
KS		 393 let dplane = if (plane == 1) || (plane == 2) { plane ^ 3 } else { plane };
394 let (w, h) = vb.get_dimensions(dplane);
395 let mut didx = vb.get_offset(dplane);
396 let dstride = vb.get_stride(dplane);
1a967e6b 397 let dst = vb.get_data_mut().unwrap();
01c971c5
KS		 398 let src = &self.plane_buf[plane];
399 let mut sidx = 0;
400 let sstride = self.plane_stride[plane];
401 for _ in 0..h {
402 for x in 0..w {
403 dst[didx + x] = clip8(src[sidx + x] + 128);
404 }
405 didx += dstride;
406 sidx += sstride;
407 }
408 }
409}
410
f2af8eca 411#[allow(clippy::many_single_char_names)]
01c971c5
KS		 412fn 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) {
413 let (xoff, yoff, mv_mode) = if is_hpel {
414 (mv_x >> 1, mv_y >> 1, ((mv_x & 1) + (mv_y & 1) * 2) as u8)
415 } else{
416 (mv_x, mv_y, 0)
417 };
418 let xpos = (x as isize) + (xoff as isize);
419 let ypos = (y as isize) + (yoff as isize);
420 if (xpos < (l as isize)) || ((xpos as usize) + blk_size + ((mv_mode & 1) as usize) > r) ||
421 (ypos < (t as isize)) || ((ypos as usize) + blk_size + ((mv_mode >> 1) as usize) > b) {
422//println!(" copy from {},{} of {}-{},{}-{} {}x{}!", xpos, ypos, l,r,t,b,blk_size,blk_size);
423 return;
424 }
425 let sidx = (xpos as usize) + (ypos as usize) * sstride;
098dcca9
KS		 426 if blk_size == 8 {
427 ivi_mc_put(dst, dstride, &src[sidx..], sstride, mv_mode, 8, 8);
428 } else {
429 ivi_mc_put(dst, dstride, &src[sidx..], sstride, mv_mode, 4, 4);
430 }
01c971c5
KS		 431}
432
f2af8eca 433#[allow(clippy::many_single_char_names)]
01c971c5
KS		 434fn 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) {
435 let (xoff1, yoff1, mv_mode1) = if is_hpel {
436 (mv_x >> 1, mv_y >> 1, ((mv_x & 1) + (mv_y & 1) * 2) as u8)
437 } else{
438 (mv_x, mv_y, 0)
439 };
440 let xpos1 = (x as isize) + (xoff1 as isize);
441 let ypos1 = (y as isize) + (yoff1 as isize);
442 if (xpos1 < (l as isize)) || ((xpos1 as usize) + blk_size + ((mv_mode1 & 1) as usize) > r) ||
443 (ypos1 < (t as isize)) || ((ypos1 as usize) + blk_size + ((mv_mode1 >> 1) as usize) > b) {
444 return;
445 }
446 let sidx1 = (xpos1 as usize) + (ypos1 as usize) * sstride1;
447 let (xoff2, yoff2, mv_mode2) = if is_hpel {
448 (mv2_x >> 1, mv2_y >> 1, ((mv2_x & 1) + (mv2_y & 1) * 2) as u8)
449 } else{
450 (mv2_x, mv2_y, 0)
451 };
452 let xpos2 = (x as isize) + (xoff2 as isize);
453 let ypos2 = (y as isize) + (yoff2 as isize);
454 if (xpos2 < (l as isize)) || ((xpos2 as usize) + blk_size + ((mv_mode2 & 1) as usize) > r) ||
455 (ypos2 < (t as isize)) || ((ypos2 as usize) + blk_size + ((mv_mode2 >> 1) as usize) > b) {
456 return;
457 }
458 let sidx2 = (xpos2 as usize) + (ypos2 as usize) * sstride2;
459 ivi_mc_avg(dst, dstride, &src1[sidx1..], sstride1, mv_mode1, &src2[sidx2..], sstride2, mv_mode2, blk_size, blk_size);
460}
461
462pub trait IndeoXParser {
463 fn decode_picture_header(&mut self, br: &mut BitReader) -> DecoderResult<PictureHeader>;
464 fn decode_band_header(&mut self, br: &mut BitReader, pic_hdr: &PictureHeader, plane: usize, band: usize) -> DecoderResult<BandHeader>;
08a1fab7 465 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		 466 fn recombine_plane(&mut self, src: &[i16], sstride: usize, dst: &mut [u8], dstride: usize, w: usize, h: usize);
467}
468
469const MISSING_REF: usize = 42;
470
471pub struct IVIDecoder {
472 ftype: IVIFrameType,
08a1fab7 473 frames: [NABufferRef<FrameData>; 4],
01c971c5
KS		 474 cur_frame: usize,
475 prev_frame: usize,
476 next_frame: usize,
477 iref_0: usize,
478 iref_1: usize,
479 scal_ref: usize,
480 vinfo: NAVideoInfo,
481 vinfoa: NAVideoInfo,
482 bref: Option<NABufferType>,
483
484 bands: Vec<BandHeader>,
01bdaf24 485 tiles: Vec<IVITile>,
01c971c5
KS		 486 num_tiles: [[usize; 4]; 4],
487 tile_start: [[usize; 4]; 4],
488}
489
490impl IVIDecoder {
491 pub fn new() -> Self {
492 let mut bands: Vec<BandHeader> = Vec::with_capacity(12);
493 bands.resize(12, BandHeader::new_empty(42, 42));
494 IVIDecoder {
495 ftype: IVIFrameType::NULL,
496 frames: [FrameData::new(), FrameData::new(), FrameData::new(), FrameData::new()],
497 cur_frame: 0, prev_frame: MISSING_REF, next_frame: MISSING_REF,
498 iref_0: MISSING_REF, iref_1: MISSING_REF, scal_ref: MISSING_REF,
499 vinfo: NAVideoInfo::new(0, 0, false, YUV410_FORMAT),
500 vinfoa: NAVideoInfo::new(0, 0, false, YUVA410_FORMAT),
501 bref: None,
502
f2af8eca 503 bands,
01c971c5
KS		 504 tiles: Vec::new(), tile_start: [[0; 4]; 4], num_tiles: [[0; 4]; 4],
505 }
506 }
507
508 fn realloc(&mut self, pic_hdr: &PictureHeader) -> DecoderResult<()> {
509 let planes = if pic_hdr.transparent { 4 } else { 3 };
510
511 //self.bands.truncate(0);
512 self.tiles.truncate(0);
513 self.num_tiles = [[0; 4]; 4];
514 self.tile_start = [[0; 4]; 4];
515 let mut tstart: usize = 0;
516 for plane in 0..planes {
517 let is_luma = (plane != 1) && (plane != 2);
518 let bands = if is_luma { pic_hdr.luma_bands } else { pic_hdr.chroma_bands };
519 let mut band_w = if is_luma { pic_hdr.width } else { (pic_hdr.width + 3) >> 2 };
520 let mut band_h = if is_luma { pic_hdr.height } else { (pic_hdr.height + 3) >> 2 };
521 let mut tile_w = if is_luma { pic_hdr.slice_w } else { (pic_hdr.slice_w + 3) >> 2 };
522 let mut tile_h = if is_luma { pic_hdr.slice_h } else { (pic_hdr.slice_h + 3) >> 2 };
523 if bands > 1 {
524 band_w = (band_w + 1) >> 1;
525 band_h = (band_h + 1) >> 1;
526 if plane == 0 {
527 tile_w = (tile_w + 1) >> 1;
528 tile_h = (tile_h + 1) >> 1;
529 }
530 }
531 for band in 0..bands {
532 self.tile_start[plane][band] = tstart;
533 let band_xoff = if (band & 1) == 1 { band_w } else { 0 };
534 let band_yoff = if (band & 2) == 2 { band_h } else { 0 };
535 let mut y = 0;
536 while y < band_h {
537 let cur_h = if y + tile_h <= band_h { tile_h } else { band_h - y };
538 let mut x = 0;
539 while x < band_w {
540 let cur_w = if x + tile_w <= band_w { tile_w } else { band_w - x };
541 let tile = IVITile::new(band_xoff + x, band_yoff + y, cur_w, cur_h);
01bdaf24 542 self.tiles.push(tile);
01c971c5
KS		 543 self.num_tiles[plane][band] += 1;
544 tstart += 1;
545 x += tile_w;
546 }
547 y += tile_h;
548 }
549 }
550 }
551 Ok(())
552 }
553 fn decode_band(&mut self, pic_hdr: &PictureHeader, dec: &mut IndeoXParser, br: &mut BitReader, plane_no: usize, band_no: usize) -> DecoderResult<()> {
554 let bidx = match plane_no {
555 0 => { band_no },
556 _ => { pic_hdr.luma_bands + plane_no - 1 },
557 };
558 let prev_band = if bidx >= self.bands.len() { BandHeader::new_empty(plane_no, band_no) } else { self.bands[bidx].clone() };
559 let mut band = dec.decode_band_header(br, pic_hdr, plane_no, band_no)?;
560 if let TxType::None = band.ttype {
561 validate!(band.plane_no == prev_band.plane_no);
562 validate!(band.band_no == prev_band.band_no);
563 validate!(band.blk_size == prev_band.blk_size);
564 band.tr = prev_band.tr;
565 band.ttype = prev_band.ttype;
566 };
567
568 let tstart = self.tile_start[band.plane_no][band.band_no];
569 let tend = tstart + self.num_tiles[band.plane_no][band.band_no];
570 let mb_size = band.mb_size;
571 let (tr, tr_dc) = match band.ttype {
572 TxType::Transform4(_) => { ivi_get_transform4x4_funcs(band.tr) },
573 TxType::Transform8(_) => { ivi_get_transform8x8_funcs(band.tr) },
574 _ => { ivi_get_transform4x4_funcs(band.tr) },
575 };
576 for tile_no in tstart..tend {
577 {
01bdaf24 578 let tile = &mut self.tiles[tile_no];
01c971c5
KS		 579 let mb_w = (tile.w + mb_size - 1) / mb_size;
580 let mb_h = (tile.h + mb_size - 1) / mb_size;
581 tile.mb_w = mb_w;
582 tile.mb_h = mb_h;
583 tile.mb.truncate(0);
584 tile.mb.resize(mb_w * mb_h, MB::new(0, 0));
585 }
586
587 let tile_start = br.tell();
588 if !br.read_bool()? {
589 let res = br.read_bool()?;
590 validate!(res);
591 let mut len = br.read(8)? as usize;
592 if len == 255 {
593 len = br.read(24)? as usize;
594 }
595 br.align();
596 validate!(len > 0);
597 let tile_end = tile_start + len * 8;
598 validate!(tile_end > br.tell());
599 validate!(tile_end <= br.tell() + (br.left() as usize));
600 {
08a1fab7 601 let ref_tile: Option<&IVITile>;
01c971c5
KS		 602 let mv_scale;
603 if (plane_no == 0) && (band_no == 0) {
604 mv_scale = 0;
605 } else {
606 mv_scale = (((self.bands[0].mb_size >> 3) as i8) - ((band.mb_size >> 3) as i8)) as u8;
607 }
01bdaf24
KS		 608 let (ref_tiles, cur_tiles) = self.tiles.split_at_mut(tile_no);
609 let tile = &mut cur_tiles[0];
01c971c5 610 if plane_no != 0 || band_no != 0 {
01bdaf24 611 let rtile = &ref_tiles[0];
01c971c5
KS		 612 if (tile.mb_w != rtile.mb_w) || (tile.mb_h != rtile.mb_h) {
613 ref_tile = None;
614 } else {
615 ref_tile = Some(rtile);
616 }
617 } else {
618 ref_tile = None;
619 }
01bdaf24 620 dec.decode_mb_info(br, pic_hdr, &band, tile, ref_tile, mv_scale)?;
01c971c5
KS		 621 }
622
623 self.decode_tile(br, &band, tile_no, &tr, &tr_dc)?;
624let skip_part = tile_end - br.tell();
625br.skip(skip_part as u32)?;
626 } else {
627 {
08a1fab7 628 let ref_tile: Option<&IVITile>;
01c971c5
KS		 629 let mv_scale;
630 if (plane_no == 0) && (band_no == 0) {
631 mv_scale = 0;
632 } else {
633 mv_scale = (((self.bands[0].mb_size >> 3) as i8) - ((band.mb_size >> 3) as i8)) as u8;
634 }
01bdaf24
KS		 635 let (ref_tiles, cur_tiles) = self.tiles.split_at_mut(tile_no);
636 let tile = &mut cur_tiles[0];
01c971c5 637 if plane_no != 0 || band_no != 0 {
01bdaf24 638 let rtile = &ref_tiles[0];
01c971c5
KS		 639 if (tile.mb_w != rtile.mb_w) || (tile.mb_h != rtile.mb_h) {
640 ref_tile = None;
641 } else {
642 ref_tile = Some(rtile);
643 }
644 } else {
645 ref_tile = None;
646 }
647 let mut mb_idx = 0;
648 for mb_y in 0..tile.mb_h {
649 for mb_x in 0..tile.mb_w {
650 let mut mb = MB::new(tile.pos_x + mb_x * band.mb_size, tile.pos_y + mb_y * band.mb_size);
651 mb.mtype = MBType::Inter;
652 mb.cbp = 0;
653 if band.inherit_mv {
654 if let Some(ref tileref) = ref_tile {
655 let mx = tileref.mb[mb_idx].mv_x;
656 let my = tileref.mb[mb_idx].mv_y;
657 mb.mv_x = scale_mv(mx, mv_scale);
658 mb.mv_y = scale_mv(my, mv_scale);
659 }
660 }
661 tile.mb[mb_idx] = mb;
662 mb_idx += 1;
663 }
664 }
665 }
666 self.decode_tile(br, &band, tile_no, &tr, &tr_dc)?;
667 }
668 }
669 self.bands[bidx] = band;
670 br.align();
671 Ok(())
672 }
673 fn decode_tile(&mut self, br: &mut BitReader, band: &BandHeader, tile_no: usize, tr: &TrFunc, transform_dc: &TrFuncDC) -> DecoderResult<()> {
674 let mut mb_idx = 0;
675 let mut prev_dc: i32 = 0;
01bdaf24 676 let tile = &mut self.tiles[tile_no];
08a1fab7 677 let mut frame = self.frames[self.cur_frame].clone();
01c971c5
KS		 678
679 let stride = frame.plane_stride[band.plane_no];
680 let mut dstidx = tile.pos_x + tile.pos_y * stride;
681 let mut dst = &mut frame.plane_buf[band.plane_no];
682 let pos_x = tile.pos_x;
683 let pos_y = tile.pos_y;
684 let tile_w = (tile.w + 15) & !15;
685 let tile_h = (tile.h + 15) & !15;
686 for mb_y in 0..tile.mb_h {
687 for mb_x in 0..tile.mb_w {
688 let mb = &mut tile.mb[mb_idx];
689
690 let is_intra = mb.mtype == MBType::Intra;
691
692 if band.mb_size != band.blk_size {
693 let mut cbp = mb.cbp;
694 for blk_no in 0..4 {
695 let mut blk: [i32; 64] = [0; 64];
009a04a9 696 let boff = (blk_no & 1) * band.blk_size + (blk_no >> 1) * band.blk_size * stride + mb_x * band.mb_size;
01c971c5
KS		 697 if !is_intra {
698 if mb.mtype != MBType::Bidir {
699 let idx;
700 if mb.mtype != MBType::Backward {
701 idx = self.prev_frame;
702 } else {
703 idx = self.next_frame;
704 }
08a1fab7 705 let pf = &self.frames[idx];
01c971c5
KS		 706 do_mc(&mut dst[dstidx + boff..], stride,
707 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
009a04a9
KS		 708 pos_x + mb_x * band.mb_size + (blk_no & 1) * band.blk_size,
709 pos_y + mb_y * band.mb_size + (blk_no >> 1) * band.blk_size,
01c971c5 710 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
009a04a9 711 mb.mv_x, mb.mv_y, band.halfpel, band.blk_size);
01c971c5 712 } else {
08a1fab7
KS		 713 let pf = &self.frames[self.prev_frame];
714 let nf = &self.frames[self.next_frame];
01c971c5
KS		 715 do_mc_b(&mut dst[dstidx + boff..], stride,
716 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
717 &nf.plane_buf[band.plane_no], nf.plane_stride[band.plane_no],
009a04a9
KS		 718 pos_x + mb_x * band.mb_size + (blk_no & 1) * band.blk_size,
719 pos_y + mb_y * band.mb_size + (blk_no >> 1) * band.blk_size,
01c971c5
KS		 720 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
721 mb.mv_x, mb.mv_y, mb.mv2_x, mb.mv2_y, band.halfpel,
722 band.blk_size);
723 }
724 }
725 if (cbp & 1) != 0 {
726 if let TxType::Transform8(ref params) = band.ttype {
727 decode_block8x8(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
728 if is_intra {
729 put_block(&mut dst, dstidx + boff, stride, &blk, 8);
730 } else {
731 add_block(&mut dst, dstidx + boff, stride, &blk, 8);
732 }
733 }
009a04a9
KS		 734 if let TxType::Transform4(ref params) = band.ttype {
735 decode_block4x4(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 {
737 put_block(&mut dst, dstidx + boff, stride, &blk, 4);
738 } else {
739 add_block(&mut dst, dstidx + boff, stride, &blk, 4);
740 }
741 }
01c971c5
KS		 742 } else {
743 if is_intra {
744 (transform_dc)(&mut blk, prev_dc);
009a04a9 745 put_block(&mut dst, dstidx + boff, stride, &blk, band.blk_size);
01c971c5
KS		 746 }
747 }
748 cbp >>= 1;
749 }
750 } else {
751 let mut blk: [i32; 64] = [0; 64];
752 if !is_intra {
753 if mb.mtype != MBType::Bidir {
754 let idx;
755 if mb.mtype != MBType::Backward {
756 idx = self.prev_frame;
757 } else {
758 idx = self.next_frame;
759 }
08a1fab7 760 let pf = &self.frames[idx];
01c971c5
KS		 761 do_mc(&mut dst[dstidx + mb_x * band.blk_size..], stride,
762 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
763 pos_x + mb_x * band.mb_size,
764 pos_y + mb_y * band.mb_size,
765 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
766 mb.mv_x, mb.mv_y, band.halfpel, band.blk_size);
767 } else {
08a1fab7
KS		 768 let pf = &self.frames[self.prev_frame];
769 let nf = &self.frames[self.next_frame];
01c971c5
KS		 770 do_mc_b(&mut dst[dstidx + mb_x * band.blk_size..], stride,
771 &pf.plane_buf[band.plane_no], pf.plane_stride[band.plane_no],
772 &nf.plane_buf[band.plane_no], nf.plane_stride[band.plane_no],
773 pos_x + mb_x * band.mb_size,
774 pos_y + mb_y * band.mb_size,
775 pos_x, pos_x + tile_w, pos_y, pos_y + tile_h,
776 mb.mv_x, mb.mv_y, mb.mv2_x, mb.mv2_y, band.halfpel,
777 band.blk_size);
778 }
779 }
780 if mb.cbp != 0 {
781 if let TxType::Transform8(ref params) = band.ttype {
782 decode_block8x8(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
783 }
784 if let TxType::Transform4(ref params) = band.ttype {
785 decode_block4x4(br, &band.blk_cb, &band.rvmap, params, is_intra, band.tr.is_2d(), &mut prev_dc, mb.q, &mut blk, tr)?;
786 }
787 if is_intra {
098dcca9
KS		 788 if band.blk_size == 8 {
789 put_block(&mut dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
790 } else {
791 put_block(&mut dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
792 }
01c971c5 793 } else {
098dcca9
KS		 794 if band.blk_size == 8 {
795 add_block(&mut dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
796 } else {
797 add_block(&mut dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
798 }
01c971c5
KS		 799 }
800 } else {
801 if is_intra {
802 (transform_dc)(&mut blk, prev_dc);
098dcca9
KS		 803 if band.blk_size == 8 {
804 put_block(&mut dst, dstidx + mb_x * band.blk_size, stride, &blk, 8);
805 } else {
806 put_block(&mut dst, dstidx + mb_x * band.blk_size, stride, &blk, 4);
807 }
01c971c5
KS		 808 }
809 }
810 }
811 mb_idx += 1;
812 }
813 dstidx += stride * band.mb_size;
814 }
815 br.align();
816 Ok(())
817 }
818
819 fn find_unused_frame(&self) -> usize {
820 for fno in 0..4 {
821 if (fno != self.iref_0) && (fno != self.iref_1) && (fno != self.scal_ref) {
822 return fno;
823 }
824 }
825 unreachable!();
826 }
827
828 fn decode_single_frame<'a>(&mut self, dec: &mut IndeoXParser, br: &mut BitReader<'a>) -> DecoderResult<NABufferType> {
829 let pic_hdr = dec.decode_picture_header(br)?;
830 self.ftype = pic_hdr.ftype;
831 if pic_hdr.ftype.is_null() {
832 return Ok(NABufferType::None);
833 }
834
835 self.cur_frame = self.find_unused_frame();
836 match self.ftype {
837 IVIFrameType::Inter => {
838 self.prev_frame = self.iref_0;
839 if self.prev_frame == MISSING_REF {
840 return Err(DecoderError::MissingReference);
841 }
842 },
843 IVIFrameType::InterDroppable => {
844 self.prev_frame = self.scal_ref;
845 if self.prev_frame == MISSING_REF {
846 return Err(DecoderError::MissingReference);
847 }
848 },
849 IVIFrameType::InterScal => {
850 self.prev_frame = self.scal_ref;
851 if self.prev_frame == MISSING_REF {
852 return Err(DecoderError::MissingReference);
853 }
854 },
855 IVIFrameType::Bidir => {
856 self.prev_frame = self.iref_1;
857 self.next_frame = self.iref_0;
858 if (self.prev_frame == MISSING_REF) || (self.next_frame == MISSING_REF) {
859 return Err(DecoderError::MissingReference);
860 }
861 },
862 _ => {},
863 };
864
f2af8eca 865 let mut vinfo = if pic_hdr.transparent { self.vinfoa } else { self.vinfo };
01c971c5
KS		 866 vinfo.set_width(pic_hdr.width);
867 vinfo.set_height(pic_hdr.height);
868 let mut buftype = alloc_video_buffer(vinfo, 0)?;
869 self.realloc(&pic_hdr)?;
08a1fab7 870 self.frames[self.cur_frame].realloc(&pic_hdr)?;
01c971c5
KS		 871
872 for plane in 0..3 {
873 let num_bands = if plane == 0 { pic_hdr.luma_bands } else { pic_hdr.chroma_bands };
874 for band in 0..num_bands {
875 self.decode_band(&pic_hdr, dec, br, plane, band)?;
876 }
877 if let NABufferType::Video(ref mut vb) = buftype {
08a1fab7 878 let mut frame = self.frames[self.cur_frame].clone();
01c971c5
KS		 879 if num_bands == 1 {
880 frame.fill_plane(vb, plane);
881 } else {
009a04a9
KS		 882 let dplane = if (plane == 1) || (plane == 2) { plane ^ 3 } else { plane };
883 let (w, h) = vb.get_dimensions(dplane);
884 let dstride = vb.get_stride(dplane);
885 let off = vb.get_offset(dplane);
1a967e6b 886 let dst = vb.get_data_mut().unwrap();
01c971c5
KS		 887 dec.recombine_plane(&frame.plane_buf[plane], frame.plane_stride[plane], &mut dst[off..], dstride, w, h);
888 }
889 }
890 }
891 if pic_hdr.transparent {
08a1fab7 892 let mut frame = self.frames[self.cur_frame].clone();
01c971c5
KS		 893 let stride = frame.plane_stride[3];
894 read_trans_band_header(br, pic_hdr.width, pic_hdr.height, &mut frame.plane_buf[3], stride)?;
895 if let NABufferType::Video(ref mut vb) = buftype {
896 frame.fill_plane(vb, 3);
897 }
898 }
899
900 match self.ftype {
92193139 901 IVIFrameType::Intra | IVIFrameType::Intra1 | IVIFrameType::Inter => {
01c971c5
KS		 902 self.iref_1 = self.iref_0;
903 self.iref_0 = self.cur_frame;
904 self.scal_ref = self.cur_frame;
905 },
01c971c5
KS		 906 _ => {},
907 };
908
909 Ok(buftype)
910 }
911
912 pub fn decode_frame<'a>(&mut self, dec: &mut IndeoXParser, br: &mut BitReader<'a>) -> DecoderResult<NABufferType> {
913 let res = self.decode_single_frame(dec, br);
914 if res.is_err() { return res; }
915 if (self.ftype == IVIFrameType::Intra) && (br.left() > 16) {
916 loop {
917 if br.left() < 8 { break; }
918 if br.read(8)? == 0 { break; }
919 }
920 loop {
921 if br.left() < 8 { break; }
922 if br.peek(8) != 0 { break; }
923 br.skip(8)?;
924 }
925 if br.left() > 24 {
926 let seq = br.peek(21);
927 if seq == 0xBFFF8 {
928 let res2 = self.decode_single_frame(dec, br);
929 if res2.is_ok() {
930 self.bref = Some(res2.unwrap());
931 }
932 }
933 self.ftype = IVIFrameType::Intra;
934 }
935 }
936 if let Ok(NABufferType::None) = res {
937 if self.bref.is_some() {
938 let mut bref: Option<NABufferType> = None;
939 mem::swap(&mut bref, &mut self.bref);
940 self.ftype = IVIFrameType::Inter;
941 return Ok(bref.unwrap());
942 }
943 }
944 res
945 }
946
f9be4e75
KS		 947 pub fn flush(&mut self) {
948 self.prev_frame = MISSING_REF;
949 self.next_frame = MISSING_REF;
950 self.iref_0 = MISSING_REF;
951 self.iref_1 = MISSING_REF;
952 self.scal_ref = MISSING_REF;
953 }
954
f2af8eca 955 pub fn is_intra(&self) -> bool {
01c971c5
KS		 956 self.ftype.is_intra()
957 }
f2af8eca 958 pub fn get_frame_type(&self) -> FrameType {
01c971c5
KS		 959 match self.ftype {
960 IVIFrameType::Intra => { FrameType::I },
961 IVIFrameType::Intra1 => { FrameType::I },
962 IVIFrameType::Inter => { FrameType::P },
963 IVIFrameType::InterDroppable => { FrameType::P },
964 IVIFrameType::InterScal => { FrameType::P },
965 IVIFrameType::Bidir => { FrameType::B },
966 _ => { FrameType::Skip },
967 }
968 }
969}
970
971pub struct RVMap {
972 pub eob_sym: u32,
973 pub esc_sym: u32,
974 pub runtab: [u8; 256],
975 pub valtab: [i8; 256],
976}
977
978impl Clone for RVMap {
979 fn clone(&self) -> RVMap {
980 let mut runtab: [u8; 256] = [0; 256];
981 let mut valtab: [i8; 256] = [0; 256];
982 runtab.copy_from_slice(&self.runtab);
983 valtab.copy_from_slice(&self.valtab);
f2af8eca 984 RVMap { eob_sym: self.eob_sym, esc_sym: self.esc_sym, runtab, valtab }
01c971c5
KS		 985 }
986}
987
988pub const IVI_ZERO_RVMAP: RVMap = RVMap { eob_sym: 0, esc_sym: 0, runtab: [0; 256], valtab: [0; 256] };
989
990pub static IVI_RVMAPS: [RVMap; 9] = [
991 RVMap { eob_sym: 5, esc_sym: 2, runtab: [
992 1, 1, 0, 1, 1, 0, 1, 1, 2, 2, 1, 1, 1, 1, 3, 3,
993 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 1, 1, 2, 2, 5, 5,
994 1, 1, 3, 3, 1, 1, 6, 6, 1, 2, 1, 2, 7, 7, 1, 1,
995 8, 8, 1, 1, 4, 2, 1, 4, 2, 1, 3, 3, 1, 1, 1, 9,
996 9, 1, 2, 1, 2, 1, 5, 5, 1, 1, 10, 10, 1, 1, 3, 3,
997 2, 2, 1, 1, 11, 11, 6, 4, 4, 1, 6, 1, 2, 1, 2, 12,
998 8, 1, 12, 7, 8, 7, 1, 16, 1, 16, 1, 3, 3, 13, 1, 13,
999 2, 2, 1, 15, 1, 5, 14, 15, 1, 5, 14, 1, 17, 8, 17, 8,
1000 1, 4, 4, 2, 2, 1, 25, 25, 24, 24, 1, 3, 1, 3, 1, 8,
1001 6, 7, 6, 1, 18, 8, 18, 1, 7, 23, 2, 2, 23, 1, 1, 21,
1002 22, 9, 9, 22, 19, 1, 21, 5, 19, 5, 1, 33, 20, 33, 20, 8,
1003 4, 4, 1, 32, 2, 2, 8, 3, 32, 26, 3, 1, 7, 7, 26, 6,
1004 1, 6, 1, 1, 16, 1, 10, 1, 10, 2, 16, 29, 28, 2, 29, 28,
1005 1, 27, 5, 8, 5, 27, 1, 8, 3, 7, 3, 31, 41, 31, 1, 41,
1006 6, 1, 6, 7, 4, 4, 1, 1, 2, 1, 2, 11, 34, 30, 11, 1,
1007 30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38 ],
1008 valtab: [
1009 1, -1, 0, 2, -2, 0, 3, -3, 1, -1, 4, -4, 5, -5, 1, -1,
1010 6, -6, 2, -2, 7, -7, 1, -1, 8, -8, 9, -9, 3, -3, 1, -1,
1011 10, -10, 2, -2, 11, -11, 1, -1, 12, 4, -12, -4, 1, -1, 13, -13,
1012 1, -1, 14, -14, 2, 5, 15, -2, -5, -15, -3, 3, 16, -16, 17, 1,
1013 -1, -17, 6, 18, -6, -18, 2, -2, 19, -19, 1, -1, 20, -20, 4, -4,
1014 7, -7, 21, -21, 1, -1, 2, 3, -3, 22, -2, -22, 8, 23, -8, 1,
1015 2, -23, -1, 2, -2, -2, 24, 1, -24, -1, 25, 5, -5, 1, -25, -1,
1016 9, -9, 26, 1, -26, 3, 1, -1, 27, -3, -1, -27, 1, 3, -1, -3,
1017 28, -4, 4, 10, -10, -28, 1, -1, 1, -1, 29, 6, -29, -6, 30, -4,
1018 3, 3, -3, -30, 1, 4, -1, 31, -3, 1, 11, -11, -1, -31, 32, -1,
1019 -1, 2, -2, 1, 1, -32, 1, 4, -1, -4, 33, -1, 1, 1, -1, 5,
1020 5, -5, -33, -1, -12, 12, -5, -7, 1, 1, 7, 34, 4, -4, -1, 4,
1021 -34, -4, 35, 36, -2, -35, -2, -36, 2, 13, 2, -1, 1, -13, 1, -1,
1022 37, 1, -5, 6, 5, -1, 38, -6, -8, 5, 8, -1, 1, 1, -37, -1,
1023 5, 39, -5, -5, 6, -6, -38, -39, -14, 40, 14, 2, 1, 1, -2, -40,
1024 -1, -2, 2, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1 ],
1025 },
1026 RVMap { eob_sym: 0, esc_sym: 38, runtab: [
1027 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 8, 6, 8, 7,
1028 7, 9, 9, 10, 10, 11, 11, 1, 12, 1, 12, 13, 13, 16, 14, 16,
1029 14, 15, 15, 17, 17, 18, 0, 18, 19, 20, 21, 19, 22, 21, 20, 22,
1030 25, 24, 2, 25, 24, 23, 23, 2, 26, 28, 26, 28, 29, 27, 29, 27,
1031 33, 33, 1, 32, 1, 3, 32, 30, 36, 3, 36, 30, 31, 31, 35, 34,
1032 37, 41, 34, 35, 37, 4, 41, 4, 49, 8, 8, 49, 40, 38, 5, 38,
1033 40, 39, 5, 39, 42, 43, 42, 7, 57, 6, 43, 44, 6, 50, 7, 44,
1034 57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58, 1, 51, 58, 1,
1035 52, 59, 53, 9, 52, 55, 55, 59, 53, 56, 54, 56, 54, 9, 64, 64,
1036 60, 63, 60, 63, 61, 62, 61, 62, 2, 10, 2, 10, 11, 1, 11, 13,
1037 12, 1, 12, 13, 16, 16, 8, 8, 14, 3, 3, 15, 14, 15, 4, 4,
1038 1, 17, 17, 5, 1, 7, 7, 5, 6, 1, 2, 2, 6, 22, 1, 25,
1039 21, 22, 8, 24, 1, 21, 25, 24, 8, 18, 18, 23, 9, 20, 23, 33,
1040 29, 33, 20, 1, 19, 1, 29, 36, 9, 36, 19, 41, 28, 57, 32, 3,
1041 28, 3, 1, 27, 49, 49, 1, 32, 26, 26, 2, 4, 4, 7, 57, 41,
1042 2, 7, 10, 5, 37, 16, 10, 27, 8, 8, 13, 16, 37, 13, 1, 5 ],
1043 valtab: [
1044 0, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1,
1045 -1, 1, -1, 1, -1, 1, -1, 2, 1, -2, -1, 1, -1, 1, 1, -1,
1046 -1, 1, -1, 1, -1, 1, 0, -1, 1, 1, 1, -1, 1, -1, -1, -1,
1047 1, 1, 2, -1, -1, 1, -1, -2, 1, 1, -1, -1, 1, 1, -1, -1,
1048 1, -1, 3, 1, -3, 2, -1, 1, 1, -2, -1, -1, -1, 1, 1, 1,
1049 1, 1, -1, -1, -1, 2, -1, -2, 1, 2, -2, -1, 1, 1, 2, -1,
1050 -1, 1, -2, -1, 1, 1, -1, 2, 1, 2, -1, 1, -2, -1, -2, -1,
1051 -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 4, -1, -1, -4,
1052 1, 1, 1, 2, -1, -1, 1, -1, -1, 1, -1, -1, 1, -2, 1, -1,
1053 1, 1, -1, -1, 1, 1, -1, -1, 3, 2, -3, -2, 2, 5, -2, 2,
1054 2, -5, -2, -2, -2, 2, -3, 3, 2, 3, -3, 2, -2, -2, 3, -3,
1055 6, 2, -2, 3, -6, 3, -3, -3, 3, 7, -4, 4, -3, 2, -7, 2,
1056 2, -2, -4, 2, 8, -2, -2, -2, 4, 2, -2, 2, 3, 2, -2, -2,
1057 2, 2, -2, -8, -2, 9, -2, 2, -3, -2, 2, -2, 2, 2, 2, 4,
1058 -2, -4, 10, 2, 2, -2, -9, -2, 2, -2, 5, 4, -4, 4, -2, 2,
1059 -5, -4, -3, 4, 2, -3, 3, -2, -5, 5, 3, 3, -2, -3, -10, -4 ],
1060 },
1061 RVMap { eob_sym: 2, esc_sym: 11, runtab: [
1062 1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 0, 1, 1, 5, 5,
1063 2, 2, 6, 6, 7, 7, 1, 8, 1, 8, 3, 3, 9, 9, 1, 2,
1064 2, 1, 4, 10, 4, 10, 11, 11, 1, 5, 12, 12, 1, 5, 13, 13,
1065 3, 3, 6, 6, 2, 2, 14, 14, 16, 16, 15, 7, 15, 8, 8, 7,
1066 1, 1, 17, 17, 4, 4, 1, 1, 18, 18, 2, 2, 5, 5, 25, 3,
1067 9, 3, 25, 9, 19, 24, 19, 24, 1, 21, 20, 1, 21, 22, 20, 22,
1068 23, 23, 8, 6, 33, 6, 8, 33, 7, 7, 26, 26, 1, 32, 1, 32,
1069 28, 4, 28, 10, 29, 27, 27, 10, 41, 4, 29, 2, 2, 41, 36, 31,
1070 49, 31, 34, 30, 34, 36, 30, 35, 1, 49, 11, 5, 35, 11, 1, 3,
1071 3, 5, 37, 37, 8, 40, 8, 40, 12, 12, 42, 42, 1, 38, 16, 57,
1072 1, 6, 16, 39, 38, 6, 7, 7, 13, 13, 39, 43, 2, 43, 57, 2,
1073 50, 9, 44, 9, 50, 4, 15, 48, 44, 4, 1, 15, 48, 14, 14, 1,
1074 45, 45, 8, 3, 5, 8, 51, 47, 3, 46, 46, 47, 5, 51, 1, 17,
1075 17, 58, 1, 58, 2, 52, 52, 2, 53, 7, 59, 6, 6, 56, 53, 55,
1076 7, 55, 1, 54, 59, 56, 54, 10, 1, 10, 4, 60, 1, 60, 8, 4,
1077 8, 64, 64, 61, 1, 63, 3, 63, 62, 61, 5, 11, 5, 3, 11, 62 ],
1078 valtab: [
1079 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 0, 3, -3, 1, -1,
1080 2, -2, 1, -1, 1, -1, 4, 1, -4, -1, 2, -2, 1, -1, 5, 3,
1081 -3, -5, 2, 1, -2, -1, 1, -1, 6, 2, 1, -1, -6, -2, 1, -1,
1082 3, -3, 2, -2, 4, -4, 1, -1, 1, -1, 1, 2, -1, 2, -2, -2,
1083 7, -7, 1, -1, 3, -3, 8, -8, 1, -1, 5, -5, 3, -3, 1, 4,
1084 2, -4, -1, -2, 1, 1, -1, -1, 9, 1, 1, -9, -1, 1, -1, -1,
1085 1, -1, 3, -3, 1, 3, -3, -1, 3, -3, 1, -1, 10, 1, -10, -1,
1086 1, 4, -1, 2, 1, -1, 1, -2, 1, -4, -1, 6, -6, -1, 1, 1,
1087 1, -1, 1, 1, -1, -1, -1, 1, 11, -1, -2, 4, -1, 2, -11, 5,
1088 -5, -4, -1, 1, 4, 1, -4, -1, -2, 2, 1, -1, 12, 1, -2, 1,
1089 -12, 4, 2, 1, -1, -4, 4, -4, 2, -2, -1, 1, 7, -1, -1, -7,
1090 -1, -3, 1, 3, 1, 5, 2, 1, -1, -5, 13, -2, -1, 2, -2, -13,
1091 1, -1, 5, 6, 5, -5, 1, 1, -6, 1, -1, -1, -5, -1, 14, 2,
1092 -2, 1, -14, -1, 8, 1, -1, -8, 1, 5, 1, 5, -5, 1, -1, 1,
1093 -5, -1, 15, 1, -1, -1, -1, 3, -15, -3, 6, 1, 16, -1, 6, -6,
1094 -6, 1, -1, 1, -16, 1, 7, -1, 1, -1, -6, -3, 6, -7, 3, -1 ]
1095 },
1096 RVMap { eob_sym: 0, esc_sym: 35, runtab: [
1097 0, 1, 1, 2, 2, 3, 3, 4, 4, 1, 1, 5, 5, 6, 6, 7,
1098 7, 8, 8, 9, 9, 2, 2, 10, 10, 1, 1, 11, 11, 12, 12, 3,
1099 3, 13, 13, 0, 14, 14, 16, 15, 16, 15, 4, 4, 17, 1, 17, 1,
1100 5, 5, 18, 18, 2, 2, 6, 6, 8, 19, 7, 8, 7, 19, 20, 20,
1101 21, 21, 22, 24, 22, 24, 23, 23, 1, 1, 25, 25, 3, 3, 26, 26,
1102 9, 9, 27, 27, 28, 28, 33, 29, 4, 33, 29, 1, 4, 1, 32, 32,
1103 2, 2, 31, 10, 30, 10, 30, 31, 34, 34, 5, 5, 36, 36, 35, 41,
1104 35, 11, 41, 11, 37, 1, 8, 8, 37, 6, 1, 6, 40, 7, 7, 40,
1105 12, 38, 12, 39, 39, 38, 49, 13, 49, 13, 3, 42, 3, 42, 16, 16,
1106 43, 43, 14, 14, 1, 1, 44, 15, 44, 15, 2, 2, 57, 48, 50, 48,
1107 57, 50, 4, 45, 45, 4, 46, 47, 47, 46, 1, 51, 1, 17, 17, 51,
1108 8, 9, 9, 5, 58, 8, 58, 5, 52, 52, 55, 56, 53, 56, 55, 59,
1109 59, 53, 54, 1, 6, 54, 7, 7, 6, 1, 2, 3, 2, 3, 64, 60,
1110 60, 10, 10, 64, 61, 62, 61, 63, 1, 63, 62, 1, 18, 24, 18, 4,
1111 25, 4, 8, 21, 21, 1, 24, 22, 25, 22, 8, 11, 19, 11, 23, 1,
1112 20, 23, 19, 20, 5, 12, 5, 1, 16, 2, 12, 13, 2, 13, 1, 16 ],
1113 valtab: [
1114 0, 1, -1, 1, -1, 1, -1, 1, -1, 2, -2, 1, -1, 1, -1, 1,
1115 -1, 1, -1, 1, -1, 2, -2, 1, -1, 3, -3, 1, -1, 1, -1, 2,
1116 -2, 1, -1, 0, 1, -1, 1, 1, -1, -1, 2, -2, 1, 4, -1, -4,
1117 2, -2, 1, -1, -3, 3, 2, -2, 2, 1, 2, -2, -2, -1, 1, -1,
1118 1, -1, 1, 1, -1, -1, 1, -1, 5, -5, 1, -1, 3, -3, 1, -1,
1119 2, -2, 1, -1, 1, -1, 1, 1, 3, -1, -1, 6, -3, -6, -1, 1,
1120 4, -4, 1, 2, 1, -2, -1, -1, 1, -1, 3, -3, 1, -1, 1, 1,
1121 -1, 2, -1, -2, 1, 7, -3, 3, -1, 3, -7, -3, 1, -3, 3, -1,
1122 2, 1, -2, 1, -1, -1, 1, 2, -1, -2, -4, -1, 4, 1, 2, -2,
1123 1, -1, -2, 2, 8, -8, -1, 2, 1, -2, -5, 5, 1, -1, -1, 1,
1124 -1, 1, 4, -1, 1, -4, -1, -1, 1, 1, 9, 1, -9, 2, -2, -1,
1125 -4, 3, -3, -4, -1, 4, 1, 4, 1, -1, 1, -1, 1, 1, -1, 1,
1126 -1, -1, -1, 10, 4, 1, 4, -4, -4, -10, 6, 5, -6, -5, 1, -1,
1127 1, 3, -3, -1, 1, -1, -1, -1, 11, 1, 1, -11, -2, -2, 2, 5,
1128 -2, -5, -5, 2, -2, 12, 2, -2, 2, 2, 5, -3, -2, 3, -2, -12,
1129 -2, 2, 2, 2, -5, 3, 5, 13, -3, 7, -3, -3, -7, 3, -13, 3 ]
1130 },
1131 RVMap { eob_sym: 0, esc_sym: 34, runtab: [
1132 0, 1, 1, 1, 2, 2, 1, 3, 3, 1, 1, 1, 4, 4, 1, 5,
1133 2, 1, 5, 2, 1, 1, 6, 6, 1, 1, 1, 1, 1, 7, 3, 1,
1134 2, 3, 0, 1, 2, 7, 1, 1, 1, 8, 1, 1, 8, 1, 1, 1,
1135 9, 1, 9, 1, 2, 1, 1, 2, 1, 1, 10, 4, 1, 10, 1, 4,
1136 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 2, 1, 5, 1, 1, 1,
1137 2, 5, 1, 11, 1, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1138 2, 1, 6, 1, 6, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 12,
1139 3, 1, 12, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1,
1140 4, 1, 1, 1, 2, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1,
1141 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 5,
1142 1, 1, 1, 1, 1, 7, 1, 7, 1, 1, 2, 3, 1, 1, 1, 1,
1143 5, 1, 1, 1, 1, 1, 1, 2, 13, 1, 1, 1, 1, 1, 1, 1,
1144 1, 1, 1, 1, 1, 1, 1, 1, 13, 2, 1, 1, 4, 1, 1, 1,
1145 3, 1, 6, 1, 1, 1, 14, 1, 1, 1, 1, 1, 14, 6, 1, 1,
1146 1, 1, 15, 2, 4, 1, 2, 3, 15, 1, 1, 1, 8, 1, 1, 8,
1147 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1 ],
1148 valtab: [
1149 0, 1, -1, 2, 1, -1, -2, 1, -1, 3, -3, 4, 1, -1, -4, 1,
1150 2, 5, -1, -2, -5, 6, 1, -1, -6, 7, -7, 8, -8, 1, 2, 9,
1151 3, -2, 0, -9, -3, -1, 10, -10, 11, 1, -11, 12, -1, -12, 13, -13,
1152 1, 14, -1, -14, 4, 15, -15, -4, 16, -16, 1, 2, 17, -1, -17, -2,
1153 18, -18, 19, -19, 20, 3, -20, 21, -21, -3, 5, 22, 2, -22, -23, 23,
1154 -5, -2, 24, 1, -24, -1, 25, -25, 26, -26, -27, 27, 28, 29, -28, -29,
1155 6, 30, 2, -31, -2, -30, 31, -6, -32, 32, 33, -33, 34, -35, -34, 1,
1156 4, -36, -1, 35, 37, 36, 7, -37, 38, -4, -38, 39, 41, 40, -40, -39,
1157 3, 42, -43, -41, -7, -42, 43, -3, 44, -44, 45, -45, 46, 47, 8, -47,
1158 -48, -46, 50, -50, 48, 49, 51, -49, 52, -52, 5, -51, -8, -53, 53, 3,
1159 -56, 56, 55, 54, -54, 2, 60, -2, -55, 58, 9, -5, 59, 57, -57, -63,
1160 -3, -58, -60, -61, 61, -59, -62, -9, 1, 64, 62, 69, -64, 63, 65, -67,
1161 -68, 66, -65, 68, -66, -69, 67, -70, -1, 10, 71, -71, 4, 73, 72, 70,
1162 6, -76, -3, 74, -78, -74, 1, 78, 80, -72, -75, 76, -1, 3, -73, 79,
1163 75, 77, 1, 11, -4, -79, -10, -6, -1, -77, -83, -80, 2, 81, -84, -2,
1164 83, -81, 82, -82, 84, -87, -86, 85, -11, -85, 86, -89, 87, -88, 88, 89 ]
1165 },
1166 RVMap { eob_sym: 2, esc_sym: 33, runtab: [
1167 1, 1, 0, 2, 1, 2, 1, 3, 3, 1, 1, 4, 4, 2, 2, 1,
1168 1, 5, 5, 6, 1, 6, 1, 7, 7, 3, 3, 2, 8, 2, 8, 1,
1169 1, 0, 9, 9, 1, 1, 10, 4, 10, 4, 11, 11, 2, 1, 2, 1,
1170 12, 12, 3, 3, 1, 1, 13, 5, 5, 13, 14, 1, 1, 14, 2, 2,
1171 6, 6, 15, 1, 1, 15, 16, 4, 7, 16, 4, 7, 1, 1, 3, 3,
1172 8, 8, 2, 2, 1, 1, 17, 17, 1, 1, 18, 18, 5, 5, 2, 2,
1173 1, 1, 9, 19, 9, 19, 20, 3, 3, 20, 1, 10, 21, 1, 10, 4,
1174 4, 21, 22, 6, 6, 22, 1, 1, 23, 24, 2, 2, 23, 24, 11, 1,
1175 1, 11, 7, 25, 7, 1, 1, 25, 8, 8, 3, 26, 3, 1, 12, 2,
1176 2, 26, 1, 12, 5, 5, 27, 4, 1, 4, 1, 27, 28, 1, 28, 13,
1177 1, 13, 2, 29, 2, 1, 32, 6, 1, 30, 14, 29, 14, 6, 3, 31,
1178 3, 1, 30, 1, 32, 31, 33, 9, 33, 1, 1, 7, 9, 7, 2, 2,
1179 1, 1, 4, 36, 34, 4, 5, 10, 10, 5, 34, 1, 1, 35, 8, 8,
1180 36, 3, 35, 1, 15, 3, 2, 1, 16, 15, 16, 2, 37, 1, 37, 1,
1181 1, 1, 6, 6, 38, 1, 38, 11, 1, 39, 39, 40, 11, 2, 41, 4,
1182 40, 1, 2, 4, 1, 1, 1, 41, 3, 1, 3, 1, 5, 7, 5, 7 ],
1183 valtab: [
1184 1, -1, 0, 1, 2, -1, -2, 1, -1, 3, -3, 1, -1, 2, -2, 4,
1185 -4, 1, -1, 1, 5, -1, -5, 1, -1, 2, -2, 3, 1, -3, -1, 6,
1186 -6, 0, 1, -1, 7, -7, 1, 2, -1, -2, 1, -1, 4, 8, -4, -8,
1187 1, -1, 3, -3, 9, -9, 1, 2, -2, -1, 1, 10, -10, -1, 5, -5,
1188 2, -2, 1, 11, -11, -1, 1, 3, 2, -1, -3, -2, 12, -12, 4, -4,
1189 2, -2, -6, 6, 13, -13, 1, -1, 14, -14, 1, -1, 3, -3, 7, -7,
1190 15, -15, 2, 1, -2, -1, 1, 5, -5, -1, -16, 2, 1, 16, -2, 4,
1191 -4, -1, 1, 3, -3, -1, 17, -17, 1, 1, -8, 8, -1, -1, 2, 18,
1192 -18, -2, 3, 1, -3, 19, -19, -1, 3, -3, 6, 1, -6, 20, 2, 9,
1193 -9, -1, -20, -2, 4, -4, 1, -5, 21, 5, -21, -1, 1, -22, -1, 2,
1194 22, -2, 10, 1, -10, 23, 1, 4, -23, 1, 2, -1, -2, -4, -7, 1,
1195 7, -24, -1, 24, -1, -1, 1, 3, -1, -25, 25, 4, -3, -4, 11, -11,
1196 26, -26, 6, 1, 1, -6, -5, -3, 3, 5, -1, -27, 27, 1, 4, -4,
1197 -1, -8, -1, 28, 2, 8, -12, -28, -2, -2, 2, 12, -1, 29, 1, -29,
1198 30, -30, 5, -5, 1, -31, -1, 3, 31, -1, 1, 1, -3, -13, 1, -7,
1199 -1, -32, 13, 7, 32, 33, -33, -1, -9, -34, 9, 34, -6, 5, 6, -5 ]
1200 },
1201 RVMap { eob_sym: 2, esc_sym: 13, runtab: [
1202 1, 1, 0, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 0, 2, 2,
1203 4, 1, 4, 1, 1, 1, 5, 5, 1, 1, 6, 6, 2, 2, 1, 1,
1204 3, 3, 7, 7, 1, 1, 8, 8, 1, 1, 2, 2, 1, 9, 1, 9,
1205 4, 4, 10, 1, 1, 10, 1, 1, 11, 11, 3, 3, 1, 2, 1, 2,
1206 1, 1, 12, 12, 5, 5, 1, 1, 13, 1, 1, 13, 2, 2, 1, 1,
1207 6, 6, 1, 1, 4, 14, 4, 14, 3, 1, 3, 1, 1, 1, 15, 7,
1208 15, 2, 2, 7, 1, 1, 1, 8, 1, 8, 16, 16, 1, 1, 1, 1,
1209 2, 1, 1, 2, 1, 1, 3, 5, 5, 3, 4, 1, 1, 4, 1, 1,
1210 17, 17, 9, 1, 1, 9, 2, 2, 1, 1, 10, 10, 1, 6, 1, 1,
1211 6, 18, 1, 1, 18, 1, 1, 1, 2, 2, 3, 1, 3, 1, 1, 1,
1212 4, 1, 19, 1, 19, 7, 1, 1, 20, 1, 4, 20, 1, 7, 11, 2,
1213 1, 11, 21, 2, 8, 5, 1, 8, 1, 5, 21, 1, 1, 1, 22, 1,
1214 1, 22, 1, 1, 3, 3, 1, 23, 2, 12, 24, 1, 1, 2, 1, 1,
1215 12, 23, 1, 1, 24, 1, 1, 1, 4, 1, 1, 1, 2, 1, 6, 6,
1216 4, 2, 1, 1, 1, 1, 1, 1, 1, 14, 13, 3, 1, 25, 9, 25,
1217 14, 1, 9, 3, 13, 1, 1, 1, 1, 1, 10, 1, 1, 2, 10, 2 ],
1218 valtab: [
1219 -20, -1, 0, 2, -2, 1, -1, 3, -3, 1, -1, 4, -4, 0, 2, -2,
1220 1, 5, -1, -5, 6, -6, 1, -1, 7, -7, 1, -1, 3, -3, 8, -8,
1221 2, -2, 1, -1, 9, -9, 1, -1, 10, -10, 4, -4, 11, 1, -11, -1,
1222 2, -2, 1, 12, -12, -1, 13, -13, 1, -1, 3, -3, 14, 5, -14, -5,
1223 -15, 15, -1, 1, 2, -2, 16, -16, 1, 17, -17, -1, 6, -6, 18, -18,
1224 2, -2, -19, 19, -3, 1, 3, -1, 4, 20, -4, 1, -21, 21, 1, 2,
1225 -1, -7, 7, -2, 22, -22, 23, 2, -23, -2, 1, -1, -24, 24, -25, 25,
1226 -8, -26, 26, 8, -27, 27, 5, 3, -3, -5, -4, 28, -28, 4, 29, -29,
1227 1, -1, -2, -30, 30, 2, 9, -9, -31, 31, 2, -2, -32, 3, 32, -33,
1228 -3, 1, 33, -34, -1, 34, -35, 35, -10, 10, -6, 36, 6, -36, 37, -37,
1229 -5, 38, 1, -38, -1, 3, 39, -39, -1, 40, 5, 1, -40, -3, 2, -11,
1230 -41, -2, 1, 11, -3, -4, 41, 3, 42, 4, -1, -43, -42, 43, 1, -44,
1231 45, -1, 44, -45, -7, 7, -46, 1, -12, 2, 1, -47, 46, 12, 47, 48,
1232 -2, -1, -48, 49, -1, -50, -49, 50, -6, -51, 51, 52, -13, 53, -4, 4,
1233 6, 13, -53, -52, -54, 55, 54, -55, -56, -2, 2, -8, 56, 1, -3, -1,
1234 2, 58, 3, 8, -2, 57, -58, -60, -59, -57, -3, 60, 59, -14, 3, 14 ]
1235 },
1236 RVMap { eob_sym: 2, esc_sym: 38, runtab: [
1237 1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 5, 5, 1, 1, 6,
1238 6, 2, 2, 7, 7, 8, 8, 1, 1, 3, 3, 9, 9, 10, 10, 1,
1239 1, 2, 2, 4, 4, 11, 0, 11, 12, 12, 13, 13, 1, 1, 5, 5,
1240 14, 14, 15, 16, 15, 16, 3, 3, 1, 6, 1, 6, 2, 2, 7, 7,
1241 8, 8, 17, 17, 1, 1, 4, 4, 18, 18, 2, 2, 1, 19, 1, 20,
1242 19, 20, 21, 21, 3, 3, 22, 22, 5, 5, 24, 1, 1, 23, 9, 23,
1243 24, 9, 2, 2, 10, 1, 1, 10, 6, 6, 25, 4, 4, 25, 7, 7,
1244 26, 8, 1, 8, 3, 1, 26, 3, 11, 11, 27, 27, 2, 28, 1, 2,
1245 28, 1, 12, 12, 5, 5, 29, 13, 13, 29, 32, 1, 1, 33, 31, 30,
1246 32, 4, 30, 33, 4, 31, 3, 14, 1, 1, 3, 34, 34, 2, 2, 14,
1247 6, 6, 35, 36, 35, 36, 1, 15, 1, 16, 16, 15, 7, 9, 7, 9,
1248 37, 8, 8, 37, 1, 1, 39, 2, 38, 39, 2, 40, 5, 38, 40, 5,
1249 3, 3, 4, 4, 10, 10, 1, 1, 1, 1, 41, 2, 41, 2, 6, 6,
1250 1, 1, 11, 42, 11, 43, 3, 42, 3, 17, 4, 43, 1, 17, 7, 1,
1251 8, 44, 4, 7, 44, 5, 8, 2, 5, 1, 2, 48, 45, 1, 12, 45,
1252 12, 48, 13, 13, 1, 9, 9, 46, 1, 46, 47, 47, 49, 18, 18, 49 ],
1253 valtab: [
1254 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 1, -1, 3, -3, 1,
1255 -1, -2, 2, 1, -1, 1, -1, 4, -4, -2, 2, 1, -1, 1, -1, 5,
1256 -5, -3, 3, 2, -2, 1, 0, -1, 1, -1, 1, -1, 6, -6, 2, -2,
1257 1, -1, 1, 1, -1, -1, -3, 3, 7, 2, -7, -2, -4, 4, 2, -2,
1258 2, -2, 1, -1, 8, -8, 3, -3, 1, -1, -5, 5, 9, 1, -9, 1,
1259 -1, -1, 1, -1, -4, 4, 1, -1, 3, -3, 1, -10, 10, 1, 2, -1,
1260 -1, -2, 6, -6, 2, 11, -11, -2, 3, -3, 1, -4, 4, -1, 3, -3,
1261 1, 3, 12, -3, -5, -12, -1, 5, 2, -2, 1, -1, -7, 1, 13, 7,
1262 -1, -13, 2, -2, 4, -4, 1, 2, -2, -1, 1, 14, -14, 1, 1, 1,
1263 -1, -5, -1, -1, 5, -1, -6, 2, -15, 15, 6, 1, -1, -8, 8, -2,
1264 -4, 4, 1, 1, -1, -1, 16, 2, -16, -2, 2, -2, 4, 3, -4, -3,
1265 -1, -4, 4, 1, -17, 17, -1, -9, 1, 1, 9, 1, -5, -1, -1, 5,
1266 -7, 7, 6, -6, 3, -3, 18, -18, 19, -19, 1, -10, -1, 10, -5, 5,
1267 20, -20, -3, 1, 3, 1, 8, -1, -8, 2, 7, -1, -21, -2, 5, 21,
1268 5, -1, -7, -5, 1, -6, -5, -11, 6, 22, 11, 1, 1, -22, -3, -1,
1269 3, -1, 3, -3, -23, 4, -4, 1, 23, -1, 1, -1, 1, -2, 2, -1 ]
1270 },
1271 RVMap { eob_sym: 4, esc_sym: 11, runtab: [
1272 1, 1, 1, 1, 0, 2, 2, 1, 1, 3, 3, 0, 1, 1, 2, 2,
1273 4, 4, 1, 1, 5, 5, 1, 1, 2, 2, 3, 3, 6, 6, 1, 1,
1274 7, 7, 8, 1, 8, 2, 2, 1, 4, 4, 1, 3, 1, 3, 9, 9,
1275 2, 2, 1, 5, 1, 5, 10, 10, 1, 1, 11, 11, 3, 6, 3, 4,
1276 4, 6, 2, 2, 1, 12, 1, 12, 7, 13, 7, 13, 1, 1, 8, 8,
1277 2, 2, 14, 14, 16, 15, 16, 5, 5, 1, 3, 15, 1, 3, 4, 4,
1278 1, 1, 17, 17, 2, 2, 6, 6, 1, 18, 1, 18, 22, 21, 22, 21,
1279 25, 24, 25, 19, 9, 20, 9, 23, 19, 24, 20, 3, 23, 7, 3, 1,
1280 1, 7, 28, 26, 29, 5, 28, 26, 5, 8, 29, 4, 8, 27, 2, 2,
1281 4, 27, 1, 1, 10, 36, 10, 33, 33, 36, 30, 1, 32, 32, 1, 30,
1282 6, 31, 31, 35, 3, 6, 11, 11, 3, 2, 35, 2, 34, 1, 34, 1,
1283 37, 37, 12, 7, 12, 5, 41, 5, 4, 7, 1, 8, 13, 4, 1, 41,
1284 13, 38, 8, 38, 9, 1, 40, 40, 9, 1, 39, 2, 2, 49, 39, 42,
1285 3, 3, 14, 16, 49, 14, 16, 42, 43, 43, 6, 6, 15, 1, 1, 15,
1286 44, 44, 1, 1, 50, 48, 4, 5, 4, 7, 5, 2, 10, 10, 48, 7,
1287 50, 45, 2, 1, 45, 8, 8, 1, 46, 46, 3, 47, 47, 3, 1, 1 ],
1288 valtab: [
1289 1, -1, 2, -2, 0, 1, -1, 3, -3, 1, -1, 0, 4, -4, 2, -2,
1290 1, -1, 5, -5, 1, -1, 6, -6, 3, -3, 2, -2, 1, -1, 7, -7,
1291 1, -1, 1, 8, -1, 4, -4, -8, 2, -2, 9, 3, -9, -3, 1, -1,
1292 5, -5, 10, 2, -10, -2, 1, -1, 11, -11, 1, -1, -4, 2, 4, 3,
1293 -3, -2, 6, -6, 12, 1, -12, -1, 2, 1, -2, -1, 13, -13, 2, -2,
1294 7, -7, 1, -1, 1, 1, -1, 3, -3, 14, 5, -1, -14, -5, 4, -4,
1295 15, -15, 1, -1, 8, -8, -3, 3, 16, 1, -16, -1, 1, 1, -1, -1,
1296 1, 1, -1, 1, 2, 1, -2, 1, -1, -1, -1, 6, -1, 3, -6, 17,
1297 -17, -3, 1, 1, 1, 4, -1, -1, -4, 3, -1, 5, -3, -1, -9, 9,
1298 -5, 1, 18, -18, 2, 1, -2, 1, -1, -1, 1, 19, -1, 1, -19, -1,
1299 4, 1, -1, 1, 7, -4, -2, 2, -7, 10, -1, -10, 1, 20, -1, -20,
1300 1, -1, 2, 4, -2, 5, 1, -5, 6, -4, 21, 4, 2, -6, -21, -1,
1301 -2, 1, -4, -1, -3, 22, -1, 1, 3, -22, -1, 11, -11, 1, 1, 1,
1302 8, -8, 2, 2, -1, -2, -2, -1, 1, -1, -5, 5, 2, 23, -23, -2,
1303 1, -1, 24, -24, -1, -1, 7, 6, -7, 5, -6, 12, -3, 3, 1, -5,
1304 1, 1, -12, 25, -1, -5, 5, -25, -1, 1, 9, 1, -1, -9, 26, -26 ]
1305 }
1306];
NihAV is a research multimedia framework