1 | /* The copyright in this software is being made available under the BSD |
---|
2 | * License, included below. This software may be subject to other third party |
---|
3 | * and contributor rights, including patent rights, and no such rights are |
---|
4 | * granted under this license. |
---|
5 | * |
---|
6 | * Copyright (c) 2010-2014, ITU/ISO/IEC |
---|
7 | * All rights reserved. |
---|
8 | * |
---|
9 | * Redistribution and use in source and binary forms, with or without |
---|
10 | * modification, are permitted provided that the following conditions are met: |
---|
11 | * |
---|
12 | * * Redistributions of source code must retain the above copyright notice, |
---|
13 | * this list of conditions and the following disclaimer. |
---|
14 | * * Redistributions in binary form must reproduce the above copyright notice, |
---|
15 | * this list of conditions and the following disclaimer in the documentation |
---|
16 | * and/or other materials provided with the distribution. |
---|
17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
---|
18 | * be used to endorse or promote products derived from this software without |
---|
19 | * specific prior written permission. |
---|
20 | * |
---|
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
---|
22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
---|
25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
---|
26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
---|
27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
---|
28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
---|
29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
---|
30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
---|
31 | * THE POSSIBILITY OF SUCH DAMAGE. |
---|
32 | */ |
---|
33 | |
---|
34 | /** |
---|
35 | \file TEncSampleAdaptiveOffset.cpp |
---|
36 | \brief estimation part of sample adaptive offset class |
---|
37 | */ |
---|
38 | #include "TEncSampleAdaptiveOffset.h" |
---|
39 | #include <string.h> |
---|
40 | #include <stdlib.h> |
---|
41 | #include <stdio.h> |
---|
42 | #include <math.h> |
---|
43 | |
---|
44 | //! \ingroup TLibEncoder |
---|
45 | //! \{ |
---|
46 | |
---|
47 | |
---|
48 | /** rounding with IBDI |
---|
49 | * \param x |
---|
50 | */ |
---|
51 | inline Double xRoundIbdi2(Int bitDepth, Double x) |
---|
52 | { |
---|
53 | return ((x)>0) ? (Int)(((Int)(x)+(1<<(bitDepth-8-1)))/(1<<(bitDepth-8))) : ((Int)(((Int)(x)-(1<<(bitDepth-8-1)))/(1<<(bitDepth-8)))); |
---|
54 | } |
---|
55 | |
---|
56 | inline Double xRoundIbdi(Int bitDepth, Double x) |
---|
57 | { |
---|
58 | return (bitDepth > 8 ? xRoundIbdi2(bitDepth, (x)) : ((x)>=0 ? ((Int)((x)+0.5)) : ((Int)((x)-0.5)))) ; |
---|
59 | } |
---|
60 | |
---|
61 | |
---|
62 | TEncSampleAdaptiveOffset::TEncSampleAdaptiveOffset() |
---|
63 | { |
---|
64 | m_pppcRDSbacCoder = NULL; |
---|
65 | m_pcRDGoOnSbacCoder = NULL; |
---|
66 | m_pppcBinCoderCABAC = NULL; |
---|
67 | m_statData = NULL; |
---|
68 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
69 | m_preDBFstatData = NULL; |
---|
70 | #endif |
---|
71 | } |
---|
72 | |
---|
73 | TEncSampleAdaptiveOffset::~TEncSampleAdaptiveOffset() |
---|
74 | { |
---|
75 | destroyEncData(); |
---|
76 | } |
---|
77 | |
---|
78 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
79 | Void TEncSampleAdaptiveOffset::createEncData(Bool isPreDBFSamplesUsed) |
---|
80 | #else |
---|
81 | Void TEncSampleAdaptiveOffset::createEncData() |
---|
82 | #endif |
---|
83 | { |
---|
84 | |
---|
85 | //cabac coder for RDO |
---|
86 | m_pppcRDSbacCoder = new TEncSbac* [NUM_SAO_CABACSTATE_LABELS]; |
---|
87 | m_pppcBinCoderCABAC = new TEncBinCABACCounter* [NUM_SAO_CABACSTATE_LABELS]; |
---|
88 | |
---|
89 | for(Int cs=0; cs < NUM_SAO_CABACSTATE_LABELS; cs++) |
---|
90 | { |
---|
91 | m_pppcRDSbacCoder[cs] = new TEncSbac; |
---|
92 | m_pppcBinCoderCABAC[cs] = new TEncBinCABACCounter; |
---|
93 | m_pppcRDSbacCoder [cs]->init( m_pppcBinCoderCABAC [cs] ); |
---|
94 | } |
---|
95 | |
---|
96 | |
---|
97 | //statistics |
---|
98 | m_statData = new SAOStatData**[m_numCTUsPic]; |
---|
99 | for(Int i=0; i< m_numCTUsPic; i++) |
---|
100 | { |
---|
101 | m_statData[i] = new SAOStatData*[NUM_SAO_COMPONENTS]; |
---|
102 | for(Int compIdx=0; compIdx < NUM_SAO_COMPONENTS; compIdx++) |
---|
103 | { |
---|
104 | m_statData[i][compIdx] = new SAOStatData[NUM_SAO_NEW_TYPES]; |
---|
105 | } |
---|
106 | } |
---|
107 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
108 | if(isPreDBFSamplesUsed) |
---|
109 | { |
---|
110 | m_preDBFstatData = new SAOStatData**[m_numCTUsPic]; |
---|
111 | for(Int i=0; i< m_numCTUsPic; i++) |
---|
112 | { |
---|
113 | m_preDBFstatData[i] = new SAOStatData*[NUM_SAO_COMPONENTS]; |
---|
114 | for(Int compIdx=0; compIdx < NUM_SAO_COMPONENTS; compIdx++) |
---|
115 | { |
---|
116 | m_preDBFstatData[i][compIdx] = new SAOStatData[NUM_SAO_NEW_TYPES]; |
---|
117 | } |
---|
118 | } |
---|
119 | |
---|
120 | } |
---|
121 | #endif |
---|
122 | |
---|
123 | #if SAO_ENCODING_CHOICE |
---|
124 | ::memset(m_saoDisabledRate, 0, sizeof(m_saoDisabledRate)); |
---|
125 | #endif |
---|
126 | |
---|
127 | for(Int typeIdc=0; typeIdc < NUM_SAO_NEW_TYPES; typeIdc++) |
---|
128 | { |
---|
129 | m_skipLinesR[SAO_Y ][typeIdc]= 5; |
---|
130 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 3; |
---|
131 | |
---|
132 | m_skipLinesB[SAO_Y ][typeIdc]= 4; |
---|
133 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 2; |
---|
134 | |
---|
135 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
136 | if(isPreDBFSamplesUsed) |
---|
137 | { |
---|
138 | switch(typeIdc) |
---|
139 | { |
---|
140 | case SAO_TYPE_EO_0: |
---|
141 | { |
---|
142 | m_skipLinesR[SAO_Y ][typeIdc]= 5; |
---|
143 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 3; |
---|
144 | |
---|
145 | m_skipLinesB[SAO_Y ][typeIdc]= 3; |
---|
146 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 1; |
---|
147 | } |
---|
148 | break; |
---|
149 | case SAO_TYPE_EO_90: |
---|
150 | { |
---|
151 | m_skipLinesR[SAO_Y ][typeIdc]= 4; |
---|
152 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 2; |
---|
153 | |
---|
154 | m_skipLinesB[SAO_Y ][typeIdc]= 4; |
---|
155 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 2; |
---|
156 | } |
---|
157 | break; |
---|
158 | case SAO_TYPE_EO_135: |
---|
159 | case SAO_TYPE_EO_45: |
---|
160 | { |
---|
161 | m_skipLinesR[SAO_Y ][typeIdc]= 5; |
---|
162 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 3; |
---|
163 | |
---|
164 | m_skipLinesB[SAO_Y ][typeIdc]= 4; |
---|
165 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 2; |
---|
166 | } |
---|
167 | break; |
---|
168 | case SAO_TYPE_BO: |
---|
169 | { |
---|
170 | m_skipLinesR[SAO_Y ][typeIdc]= 4; |
---|
171 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 2; |
---|
172 | |
---|
173 | m_skipLinesB[SAO_Y ][typeIdc]= 3; |
---|
174 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 1; |
---|
175 | } |
---|
176 | break; |
---|
177 | default: |
---|
178 | { |
---|
179 | printf("Not a supported type"); |
---|
180 | assert(0); |
---|
181 | exit(-1); |
---|
182 | } |
---|
183 | } |
---|
184 | } |
---|
185 | #endif |
---|
186 | } |
---|
187 | |
---|
188 | } |
---|
189 | |
---|
190 | Void TEncSampleAdaptiveOffset::destroyEncData() |
---|
191 | { |
---|
192 | if(m_pppcRDSbacCoder != NULL) |
---|
193 | { |
---|
194 | for (Int cs = 0; cs < NUM_SAO_CABACSTATE_LABELS; cs ++ ) |
---|
195 | { |
---|
196 | delete m_pppcRDSbacCoder[cs]; |
---|
197 | } |
---|
198 | delete[] m_pppcRDSbacCoder; m_pppcRDSbacCoder = NULL; |
---|
199 | } |
---|
200 | |
---|
201 | if(m_pppcBinCoderCABAC != NULL) |
---|
202 | { |
---|
203 | for (Int cs = 0; cs < NUM_SAO_CABACSTATE_LABELS; cs ++ ) |
---|
204 | { |
---|
205 | delete m_pppcBinCoderCABAC[cs]; |
---|
206 | } |
---|
207 | delete[] m_pppcBinCoderCABAC; m_pppcBinCoderCABAC = NULL; |
---|
208 | } |
---|
209 | |
---|
210 | if(m_statData != NULL) |
---|
211 | { |
---|
212 | for(Int i=0; i< m_numCTUsPic; i++) |
---|
213 | { |
---|
214 | for(Int compIdx=0; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
---|
215 | { |
---|
216 | delete[] m_statData[i][compIdx]; |
---|
217 | } |
---|
218 | delete[] m_statData[i]; |
---|
219 | } |
---|
220 | delete[] m_statData; m_statData = NULL; |
---|
221 | } |
---|
222 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
223 | if(m_preDBFstatData != NULL) |
---|
224 | { |
---|
225 | for(Int i=0; i< m_numCTUsPic; i++) |
---|
226 | { |
---|
227 | for(Int compIdx=0; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
---|
228 | { |
---|
229 | delete[] m_preDBFstatData[i][compIdx]; |
---|
230 | } |
---|
231 | delete[] m_preDBFstatData[i]; |
---|
232 | } |
---|
233 | delete[] m_preDBFstatData; m_preDBFstatData = NULL; |
---|
234 | } |
---|
235 | |
---|
236 | #endif |
---|
237 | } |
---|
238 | |
---|
239 | Void TEncSampleAdaptiveOffset::initRDOCabacCoder(TEncSbac* pcRDGoOnSbacCoder, TComSlice* pcSlice) |
---|
240 | { |
---|
241 | m_pcRDGoOnSbacCoder = pcRDGoOnSbacCoder; |
---|
242 | m_pcRDGoOnSbacCoder->setSlice(pcSlice); |
---|
243 | m_pcRDGoOnSbacCoder->resetEntropy(); |
---|
244 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
245 | |
---|
246 | m_pcRDGoOnSbacCoder->store( m_pppcRDSbacCoder[SAO_CABACSTATE_PIC_INIT]); |
---|
247 | } |
---|
248 | |
---|
249 | |
---|
250 | |
---|
251 | Void TEncSampleAdaptiveOffset::SAOProcess(TComPic* pPic, Bool* sliceEnabled, const Double *lambdas |
---|
252 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
253 | , Bool isPreDBFSamplesUsed |
---|
254 | #endif |
---|
255 | ) |
---|
256 | { |
---|
257 | TComPicYuv* orgYuv= pPic->getPicYuvOrg(); |
---|
258 | TComPicYuv* resYuv= pPic->getPicYuvRec(); |
---|
259 | m_lambda[SAO_Y]= lambdas[0]; m_lambda[SAO_Cb]= lambdas[1]; m_lambda[SAO_Cr]= lambdas[2]; |
---|
260 | TComPicYuv* srcYuv = m_tempPicYuv; |
---|
261 | resYuv->copyToPic(srcYuv); |
---|
262 | srcYuv->setBorderExtension(false); |
---|
263 | srcYuv->extendPicBorder(); |
---|
264 | |
---|
265 | //collect statistics |
---|
266 | getStatistics(m_statData, orgYuv, srcYuv, pPic); |
---|
267 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
268 | if(isPreDBFSamplesUsed) |
---|
269 | { |
---|
270 | addPreDBFStatistics(m_statData); |
---|
271 | } |
---|
272 | #endif |
---|
273 | //slice on/off |
---|
274 | decidePicParams(sliceEnabled, pPic->getSlice(0)->getDepth()); |
---|
275 | |
---|
276 | //block on/off |
---|
277 | SAOBlkParam* reconParams = new SAOBlkParam[m_numCTUsPic]; //temporary parameter buffer for storing reconstructed SAO parameters |
---|
278 | decideBlkParams(pPic, sliceEnabled, m_statData, srcYuv, resYuv, reconParams, pPic->getPicSym()->getSAOBlkParam()); |
---|
279 | delete[] reconParams; |
---|
280 | |
---|
281 | } |
---|
282 | |
---|
283 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
284 | Void TEncSampleAdaptiveOffset::getPreDBFStatistics(TComPic* pPic) |
---|
285 | { |
---|
286 | getStatistics(m_preDBFstatData, pPic->getPicYuvOrg(), pPic->getPicYuvRec(), pPic, true); |
---|
287 | } |
---|
288 | |
---|
289 | Void TEncSampleAdaptiveOffset::addPreDBFStatistics(SAOStatData*** blkStats) |
---|
290 | { |
---|
291 | for(Int n=0; n< m_numCTUsPic; n++) |
---|
292 | { |
---|
293 | for(Int compIdx=0; compIdx < NUM_SAO_COMPONENTS; compIdx++) |
---|
294 | { |
---|
295 | for(Int typeIdc=0; typeIdc < NUM_SAO_NEW_TYPES; typeIdc++) |
---|
296 | { |
---|
297 | blkStats[n][compIdx][typeIdc] += m_preDBFstatData[n][compIdx][typeIdc]; |
---|
298 | } |
---|
299 | } |
---|
300 | } |
---|
301 | } |
---|
302 | |
---|
303 | #endif |
---|
304 | |
---|
305 | Void TEncSampleAdaptiveOffset::getStatistics(SAOStatData*** blkStats, TComPicYuv* orgYuv, TComPicYuv* srcYuv, TComPic* pPic |
---|
306 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
307 | , Bool isCalculatePreDeblockSamples |
---|
308 | #endif |
---|
309 | ) |
---|
310 | { |
---|
311 | Bool isLeftAvail,isRightAvail,isAboveAvail,isBelowAvail,isAboveLeftAvail,isAboveRightAvail,isBelowLeftAvail,isBelowRightAvail; |
---|
312 | |
---|
313 | for(Int ctu= 0; ctu < m_numCTUsPic; ctu++) |
---|
314 | { |
---|
315 | Int yPos = (ctu / m_numCTUInWidth)*m_maxCUHeight; |
---|
316 | Int xPos = (ctu % m_numCTUInWidth)*m_maxCUWidth; |
---|
317 | Int height = (yPos + m_maxCUHeight > m_picHeight)?(m_picHeight- yPos):m_maxCUHeight; |
---|
318 | Int width = (xPos + m_maxCUWidth > m_picWidth )?(m_picWidth - xPos):m_maxCUWidth; |
---|
319 | |
---|
320 | pPic->getPicSym()->deriveLoopFilterBoundaryAvailibility(ctu, isLeftAvail,isRightAvail,isAboveAvail,isBelowAvail,isAboveLeftAvail,isAboveRightAvail,isBelowLeftAvail,isBelowRightAvail); |
---|
321 | |
---|
322 | //NOTE: The number of skipped lines during gathering CTU statistics depends on the slice boundary availabilities. |
---|
323 | //For simplicity, here only picture boundaries are considered. |
---|
324 | |
---|
325 | isRightAvail = (xPos + m_maxCUWidth < m_picWidth ); |
---|
326 | isBelowAvail = (yPos + m_maxCUHeight < m_picHeight); |
---|
327 | isBelowRightAvail = (isRightAvail && isBelowAvail); |
---|
328 | isBelowLeftAvail = ((xPos > 0) && (isBelowAvail)); |
---|
329 | isAboveRightAvail = ((yPos > 0) && (isRightAvail)); |
---|
330 | |
---|
331 | for(Int compIdx=0; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
---|
332 | { |
---|
333 | Bool isLuma = (compIdx == SAO_Y); |
---|
334 | Int formatShift= isLuma?0:1; |
---|
335 | |
---|
336 | Int srcStride = isLuma?srcYuv->getStride():srcYuv->getCStride(); |
---|
337 | Pel* srcBlk = getPicBuf(srcYuv, compIdx)+ (yPos >> formatShift)*srcStride+ (xPos >> formatShift); |
---|
338 | |
---|
339 | Int orgStride = isLuma?orgYuv->getStride():orgYuv->getCStride(); |
---|
340 | Pel* orgBlk = getPicBuf(orgYuv, compIdx)+ (yPos >> formatShift)*orgStride+ (xPos >> formatShift); |
---|
341 | |
---|
342 | getBlkStats(compIdx, blkStats[ctu][compIdx] |
---|
343 | , srcBlk, orgBlk, srcStride, orgStride, (width >> formatShift), (height >> formatShift) |
---|
344 | , isLeftAvail, isRightAvail, isAboveAvail, isBelowAvail, isAboveLeftAvail, isAboveRightAvail, isBelowLeftAvail, isBelowRightAvail |
---|
345 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
346 | , isCalculatePreDeblockSamples |
---|
347 | #endif |
---|
348 | ); |
---|
349 | |
---|
350 | } |
---|
351 | } |
---|
352 | } |
---|
353 | |
---|
354 | Void TEncSampleAdaptiveOffset::decidePicParams(Bool* sliceEnabled, Int picTempLayer) |
---|
355 | { |
---|
356 | //decide sliceEnabled[compIdx] |
---|
357 | for (Int compIdx=0; compIdx<NUM_SAO_COMPONENTS; compIdx++) |
---|
358 | { |
---|
359 | // reset flags & counters |
---|
360 | sliceEnabled[compIdx] = true; |
---|
361 | |
---|
362 | #if SAO_ENCODING_CHOICE |
---|
363 | #if SAO_ENCODING_CHOICE_CHROMA |
---|
364 | // decide slice-level on/off based on previous results |
---|
365 | if( (picTempLayer > 0) |
---|
366 | && (m_saoDisabledRate[compIdx][picTempLayer-1] > ((compIdx==SAO_Y) ? SAO_ENCODING_RATE : SAO_ENCODING_RATE_CHROMA)) ) |
---|
367 | { |
---|
368 | sliceEnabled[compIdx] = false; |
---|
369 | } |
---|
370 | #else |
---|
371 | // decide slice-level on/off based on previous results |
---|
372 | if( (picTempLayer > 0) |
---|
373 | && (m_saoDisabledRate[SAO_Y][0] > SAO_ENCODING_RATE) ) |
---|
374 | { |
---|
375 | sliceEnabled[compIdx] = false; |
---|
376 | } |
---|
377 | #endif |
---|
378 | #endif |
---|
379 | } |
---|
380 | } |
---|
381 | |
---|
382 | Int64 TEncSampleAdaptiveOffset::getDistortion(Int ctu, Int compIdx, Int typeIdc, Int typeAuxInfo, Int* invQuantOffset, SAOStatData& statData) |
---|
383 | { |
---|
384 | Int64 dist=0; |
---|
385 | Int inputBitDepth = (compIdx == SAO_Y) ? g_bitDepthY : g_bitDepthC ; |
---|
386 | Int shift = 2 * DISTORTION_PRECISION_ADJUSTMENT(inputBitDepth-8); |
---|
387 | |
---|
388 | switch(typeIdc) |
---|
389 | { |
---|
390 | case SAO_TYPE_EO_0: |
---|
391 | case SAO_TYPE_EO_90: |
---|
392 | case SAO_TYPE_EO_135: |
---|
393 | case SAO_TYPE_EO_45: |
---|
394 | { |
---|
395 | for (Int offsetIdx=0; offsetIdx<NUM_SAO_EO_CLASSES; offsetIdx++) |
---|
396 | { |
---|
397 | dist += estSaoDist( statData.count[offsetIdx], invQuantOffset[offsetIdx], statData.diff[offsetIdx], shift); |
---|
398 | } |
---|
399 | } |
---|
400 | break; |
---|
401 | case SAO_TYPE_BO: |
---|
402 | { |
---|
403 | for (Int offsetIdx=typeAuxInfo; offsetIdx<typeAuxInfo+4; offsetIdx++) |
---|
404 | { |
---|
405 | Int bandIdx = offsetIdx % NUM_SAO_BO_CLASSES ; |
---|
406 | dist += estSaoDist( statData.count[bandIdx], invQuantOffset[bandIdx], statData.diff[bandIdx], shift); |
---|
407 | } |
---|
408 | } |
---|
409 | break; |
---|
410 | default: |
---|
411 | { |
---|
412 | printf("Not a supported type"); |
---|
413 | assert(0); |
---|
414 | exit(-1); |
---|
415 | } |
---|
416 | } |
---|
417 | |
---|
418 | return dist; |
---|
419 | } |
---|
420 | |
---|
421 | inline Int64 TEncSampleAdaptiveOffset::estSaoDist(Int64 count, Int64 offset, Int64 diffSum, Int shift) |
---|
422 | { |
---|
423 | return (( count*offset*offset-diffSum*offset*2 ) >> shift); |
---|
424 | } |
---|
425 | |
---|
426 | |
---|
427 | inline Int TEncSampleAdaptiveOffset::estIterOffset(Int typeIdx, Int classIdx, Double lambda, Int offsetInput, Int64 count, Int64 diffSum, Int shift, Int bitIncrease, Int64& bestDist, Double& bestCost, Int offsetTh ) |
---|
428 | { |
---|
429 | Int iterOffset, tempOffset; |
---|
430 | Int64 tempDist, tempRate; |
---|
431 | Double tempCost, tempMinCost; |
---|
432 | Int offsetOutput = 0; |
---|
433 | iterOffset = offsetInput; |
---|
434 | // Assuming sending quantized value 0 results in zero offset and sending the value zero needs 1 bit. entropy coder can be used to measure the exact rate here. |
---|
435 | tempMinCost = lambda; |
---|
436 | while (iterOffset != 0) |
---|
437 | { |
---|
438 | // Calculate the bits required for signaling the offset |
---|
439 | tempRate = (typeIdx == SAO_TYPE_BO) ? (abs((Int)iterOffset)+2) : (abs((Int)iterOffset)+1); |
---|
440 | if (abs((Int)iterOffset)==offsetTh) //inclusive |
---|
441 | { |
---|
442 | tempRate --; |
---|
443 | } |
---|
444 | // Do the dequantization before distortion calculation |
---|
445 | tempOffset = iterOffset << bitIncrease; |
---|
446 | tempDist = estSaoDist( count, tempOffset, diffSum, shift); |
---|
447 | tempCost = ((Double)tempDist + lambda * (Double) tempRate); |
---|
448 | if(tempCost < tempMinCost) |
---|
449 | { |
---|
450 | tempMinCost = tempCost; |
---|
451 | offsetOutput = iterOffset; |
---|
452 | bestDist = tempDist; |
---|
453 | bestCost = tempCost; |
---|
454 | } |
---|
455 | iterOffset = (iterOffset > 0) ? (iterOffset-1):(iterOffset+1); |
---|
456 | } |
---|
457 | return offsetOutput; |
---|
458 | } |
---|
459 | |
---|
460 | |
---|
461 | Void TEncSampleAdaptiveOffset::deriveOffsets(Int ctu, Int compIdx, Int typeIdc, SAOStatData& statData, Int* quantOffsets, Int& typeAuxInfo) |
---|
462 | { |
---|
463 | Int bitDepth = (compIdx== SAO_Y) ? g_bitDepthY : g_bitDepthC; |
---|
464 | Int shift = 2 * DISTORTION_PRECISION_ADJUSTMENT(bitDepth-8); |
---|
465 | #if SVC_EXTENSION |
---|
466 | Int offsetTh = getSaoMaxOffsetQVal()[compIdx]; //inclusive |
---|
467 | #else |
---|
468 | Int offsetTh = g_saoMaxOffsetQVal[compIdx]; //inclusive |
---|
469 | #endif |
---|
470 | |
---|
471 | ::memset(quantOffsets, 0, sizeof(Int)*MAX_NUM_SAO_CLASSES); |
---|
472 | |
---|
473 | //derive initial offsets |
---|
474 | Int numClasses = (typeIdc == SAO_TYPE_BO)?((Int)NUM_SAO_BO_CLASSES):((Int)NUM_SAO_EO_CLASSES); |
---|
475 | for(Int classIdx=0; classIdx< numClasses; classIdx++) |
---|
476 | { |
---|
477 | if( (typeIdc != SAO_TYPE_BO) && (classIdx==SAO_CLASS_EO_PLAIN) ) |
---|
478 | { |
---|
479 | continue; //offset will be zero |
---|
480 | } |
---|
481 | |
---|
482 | if(statData.count[classIdx] == 0) |
---|
483 | { |
---|
484 | continue; //offset will be zero |
---|
485 | } |
---|
486 | |
---|
487 | quantOffsets[classIdx] = (Int) xRoundIbdi(bitDepth, (Double)( statData.diff[classIdx]<<(bitDepth-8)) |
---|
488 | / |
---|
489 | (Double)( statData.count[classIdx]<< m_offsetStepLog2[compIdx]) |
---|
490 | ); |
---|
491 | quantOffsets[classIdx] = Clip3(-offsetTh, offsetTh, quantOffsets[classIdx]); |
---|
492 | } |
---|
493 | |
---|
494 | // adjust offsets |
---|
495 | switch(typeIdc) |
---|
496 | { |
---|
497 | case SAO_TYPE_EO_0: |
---|
498 | case SAO_TYPE_EO_90: |
---|
499 | case SAO_TYPE_EO_135: |
---|
500 | case SAO_TYPE_EO_45: |
---|
501 | { |
---|
502 | Int64 classDist; |
---|
503 | Double classCost; |
---|
504 | for(Int classIdx=0; classIdx<NUM_SAO_EO_CLASSES; classIdx++) |
---|
505 | { |
---|
506 | if(classIdx==SAO_CLASS_EO_FULL_VALLEY && quantOffsets[classIdx] < 0) quantOffsets[classIdx] =0; |
---|
507 | if(classIdx==SAO_CLASS_EO_HALF_VALLEY && quantOffsets[classIdx] < 0) quantOffsets[classIdx] =0; |
---|
508 | if(classIdx==SAO_CLASS_EO_HALF_PEAK && quantOffsets[classIdx] > 0) quantOffsets[classIdx] =0; |
---|
509 | if(classIdx==SAO_CLASS_EO_FULL_PEAK && quantOffsets[classIdx] > 0) quantOffsets[classIdx] =0; |
---|
510 | |
---|
511 | if( quantOffsets[classIdx] != 0 ) //iterative adjustment only when derived offset is not zero |
---|
512 | { |
---|
513 | quantOffsets[classIdx] = estIterOffset( typeIdc, classIdx, m_lambda[compIdx], quantOffsets[classIdx], statData.count[classIdx], statData.diff[classIdx], shift, m_offsetStepLog2[compIdx], classDist , classCost , offsetTh ); |
---|
514 | } |
---|
515 | } |
---|
516 | |
---|
517 | typeAuxInfo =0; |
---|
518 | } |
---|
519 | break; |
---|
520 | case SAO_TYPE_BO: |
---|
521 | { |
---|
522 | Int64 distBOClasses[NUM_SAO_BO_CLASSES]; |
---|
523 | Double costBOClasses[NUM_SAO_BO_CLASSES]; |
---|
524 | ::memset(distBOClasses, 0, sizeof(Int64)*NUM_SAO_BO_CLASSES); |
---|
525 | for(Int classIdx=0; classIdx< NUM_SAO_BO_CLASSES; classIdx++) |
---|
526 | { |
---|
527 | costBOClasses[classIdx]= m_lambda[compIdx]; |
---|
528 | if( quantOffsets[classIdx] != 0 ) //iterative adjustment only when derived offset is not zero |
---|
529 | { |
---|
530 | quantOffsets[classIdx] = estIterOffset( typeIdc, classIdx, m_lambda[compIdx], quantOffsets[classIdx], statData.count[classIdx], statData.diff[classIdx], shift, m_offsetStepLog2[compIdx], distBOClasses[classIdx], costBOClasses[classIdx], offsetTh ); |
---|
531 | } |
---|
532 | } |
---|
533 | |
---|
534 | //decide the starting band index |
---|
535 | Double minCost = MAX_DOUBLE, cost; |
---|
536 | for(Int band=0; band< NUM_SAO_BO_CLASSES- 4+ 1; band++) |
---|
537 | { |
---|
538 | cost = costBOClasses[band ]; |
---|
539 | cost += costBOClasses[band+1]; |
---|
540 | cost += costBOClasses[band+2]; |
---|
541 | cost += costBOClasses[band+3]; |
---|
542 | |
---|
543 | if(cost < minCost) |
---|
544 | { |
---|
545 | minCost = cost; |
---|
546 | typeAuxInfo = band; |
---|
547 | } |
---|
548 | } |
---|
549 | //clear those unused classes |
---|
550 | Int clearQuantOffset[NUM_SAO_BO_CLASSES]; |
---|
551 | ::memset(clearQuantOffset, 0, sizeof(Int)*NUM_SAO_BO_CLASSES); |
---|
552 | for(Int i=0; i< 4; i++) |
---|
553 | { |
---|
554 | Int band = (typeAuxInfo+i)%NUM_SAO_BO_CLASSES; |
---|
555 | clearQuantOffset[band] = quantOffsets[band]; |
---|
556 | } |
---|
557 | ::memcpy(quantOffsets, clearQuantOffset, sizeof(Int)*NUM_SAO_BO_CLASSES); |
---|
558 | } |
---|
559 | break; |
---|
560 | default: |
---|
561 | { |
---|
562 | printf("Not a supported type"); |
---|
563 | assert(0); |
---|
564 | exit(-1); |
---|
565 | } |
---|
566 | |
---|
567 | } |
---|
568 | |
---|
569 | |
---|
570 | } |
---|
571 | |
---|
572 | |
---|
573 | Void TEncSampleAdaptiveOffset::deriveModeNewRDO(Int ctu, std::vector<SAOBlkParam*>& mergeList, Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel) |
---|
574 | { |
---|
575 | Double minCost, cost; |
---|
576 | Int rate; |
---|
577 | UInt previousWrittenBits; |
---|
578 | Int64 dist[NUM_SAO_COMPONENTS], modeDist[NUM_SAO_COMPONENTS]; |
---|
579 | SAOOffset testOffset[NUM_SAO_COMPONENTS]; |
---|
580 | Int compIdx; |
---|
581 | Int invQuantOffset[MAX_NUM_SAO_CLASSES]; |
---|
582 | |
---|
583 | modeDist[SAO_Y]= modeDist[SAO_Cb] = modeDist[SAO_Cr] = 0; |
---|
584 | |
---|
585 | //pre-encode merge flags |
---|
586 | modeParam[SAO_Y ].modeIdc = SAO_MODE_OFF; |
---|
587 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
---|
588 | #if SVC_EXTENSION |
---|
589 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, getSaoMaxOffsetQVal(), sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), true); |
---|
590 | #else |
---|
591 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), true); |
---|
592 | #endif |
---|
593 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
---|
594 | |
---|
595 | //------ luma --------// |
---|
596 | compIdx = SAO_Y; |
---|
597 | //"off" case as initial cost |
---|
598 | modeParam[compIdx].modeIdc = SAO_MODE_OFF; |
---|
599 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
600 | #if SVC_EXTENSION |
---|
601 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, modeParam[compIdx], sliceEnabled[compIdx], getSaoMaxOffsetQVal()); |
---|
602 | #else |
---|
603 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, modeParam[compIdx], sliceEnabled[compIdx]); |
---|
604 | #endif |
---|
605 | modeDist[compIdx] = 0; |
---|
606 | minCost= m_lambda[compIdx]*((Double)m_pcRDGoOnSbacCoder->getNumberOfWrittenBits()); |
---|
607 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
608 | if(sliceEnabled[compIdx]) |
---|
609 | { |
---|
610 | for(Int typeIdc=0; typeIdc< NUM_SAO_NEW_TYPES; typeIdc++) |
---|
611 | { |
---|
612 | testOffset[compIdx].modeIdc = SAO_MODE_NEW; |
---|
613 | testOffset[compIdx].typeIdc = typeIdc; |
---|
614 | |
---|
615 | //derive coded offset |
---|
616 | deriveOffsets(ctu, compIdx, typeIdc, blkStats[ctu][compIdx][typeIdc], testOffset[compIdx].offset, testOffset[compIdx].typeAuxInfo); |
---|
617 | |
---|
618 | //inversed quantized offsets |
---|
619 | invertQuantOffsets(compIdx, typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, testOffset[compIdx].offset); |
---|
620 | |
---|
621 | //get distortion |
---|
622 | dist[compIdx] = getDistortion(ctu, compIdx, testOffset[compIdx].typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, blkStats[ctu][compIdx][typeIdc]); |
---|
623 | |
---|
624 | //get rate |
---|
625 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
---|
626 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
627 | #if SVC_EXTENSION |
---|
628 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx], getSaoMaxOffsetQVal()); |
---|
629 | #else |
---|
630 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx]); |
---|
631 | #endif |
---|
632 | rate = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
633 | cost = (Double)dist[compIdx] + m_lambda[compIdx]*((Double)rate); |
---|
634 | if(cost < minCost) |
---|
635 | { |
---|
636 | minCost = cost; |
---|
637 | modeDist[compIdx] = dist[compIdx]; |
---|
638 | modeParam[compIdx]= testOffset[compIdx]; |
---|
639 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
640 | } |
---|
641 | } |
---|
642 | } |
---|
643 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
644 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
---|
645 | |
---|
646 | //------ chroma --------// |
---|
647 | //"off" case as initial cost |
---|
648 | cost = 0; |
---|
649 | previousWrittenBits = 0; |
---|
650 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
651 | for (Int component = SAO_Cb; component < NUM_SAO_COMPONENTS; component++) |
---|
652 | { |
---|
653 | modeParam[component].modeIdc = SAO_MODE_OFF; |
---|
654 | modeDist [component] = 0; |
---|
655 | |
---|
656 | #if SVC_EXTENSION |
---|
657 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(component, modeParam[component], sliceEnabled[component], getSaoMaxOffsetQVal()); |
---|
658 | #else |
---|
659 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(component, modeParam[component], sliceEnabled[component]); |
---|
660 | #endif |
---|
661 | |
---|
662 | const UInt currentWrittenBits = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
663 | cost += m_lambda[component] * (currentWrittenBits - previousWrittenBits); |
---|
664 | previousWrittenBits = currentWrittenBits; |
---|
665 | } |
---|
666 | |
---|
667 | minCost = cost; |
---|
668 | |
---|
669 | //doesn't need to store cabac status here since the whole CTU parameters will be re-encoded at the end of this function |
---|
670 | |
---|
671 | for(Int typeIdc=0; typeIdc< NUM_SAO_NEW_TYPES; typeIdc++) |
---|
672 | { |
---|
673 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
---|
674 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
675 | previousWrittenBits = 0; |
---|
676 | cost = 0; |
---|
677 | |
---|
678 | for(compIdx= SAO_Cb; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
---|
679 | { |
---|
680 | if(!sliceEnabled[compIdx]) |
---|
681 | { |
---|
682 | testOffset[compIdx].modeIdc = SAO_MODE_OFF; |
---|
683 | dist[compIdx]= 0; |
---|
684 | continue; |
---|
685 | } |
---|
686 | testOffset[compIdx].modeIdc = SAO_MODE_NEW; |
---|
687 | testOffset[compIdx].typeIdc = typeIdc; |
---|
688 | |
---|
689 | //derive offset & get distortion |
---|
690 | deriveOffsets(ctu, compIdx, typeIdc, blkStats[ctu][compIdx][typeIdc], testOffset[compIdx].offset, testOffset[compIdx].typeAuxInfo); |
---|
691 | invertQuantOffsets(compIdx, typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, testOffset[compIdx].offset); |
---|
692 | dist[compIdx]= getDistortion(ctu, compIdx, typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, blkStats[ctu][compIdx][typeIdc]); |
---|
693 | |
---|
694 | #if SVC_EXTENSION |
---|
695 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx], getSaoMaxOffsetQVal()); |
---|
696 | #else |
---|
697 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx]); |
---|
698 | #endif |
---|
699 | |
---|
700 | const UInt currentWrittenBits = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
701 | cost += dist[compIdx] + (m_lambda[compIdx] * (currentWrittenBits - previousWrittenBits)); |
---|
702 | previousWrittenBits = currentWrittenBits; |
---|
703 | } |
---|
704 | |
---|
705 | if(cost < minCost) |
---|
706 | { |
---|
707 | minCost = cost; |
---|
708 | for(compIdx= SAO_Cb; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
---|
709 | { |
---|
710 | modeDist [compIdx] = dist [compIdx]; |
---|
711 | modeParam[compIdx] = testOffset[compIdx]; |
---|
712 | } |
---|
713 | } |
---|
714 | } |
---|
715 | |
---|
716 | |
---|
717 | //----- re-gen rate & normalized cost----// |
---|
718 | modeNormCost = 0; |
---|
719 | for(UInt component = SAO_Y; component < NUM_SAO_COMPONENTS; component++) |
---|
720 | { |
---|
721 | modeNormCost += (Double)modeDist[component] / m_lambda[component]; |
---|
722 | } |
---|
723 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
---|
724 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
725 | #if SVC_EXTENSION |
---|
726 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, getSaoMaxOffsetQVal(), sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
---|
727 | #else |
---|
728 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
---|
729 | #endif |
---|
730 | modeNormCost += (Double)m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
731 | |
---|
732 | } |
---|
733 | |
---|
734 | Void TEncSampleAdaptiveOffset::deriveModeMergeRDO(Int ctu, std::vector<SAOBlkParam*>& mergeList, Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel) |
---|
735 | { |
---|
736 | Int mergeListSize = (Int)mergeList.size(); |
---|
737 | modeNormCost = MAX_DOUBLE; |
---|
738 | |
---|
739 | Double cost; |
---|
740 | SAOBlkParam testBlkParam; |
---|
741 | |
---|
742 | for(Int mergeType=0; mergeType< mergeListSize; mergeType++) |
---|
743 | { |
---|
744 | if(mergeList[mergeType] == NULL) |
---|
745 | { |
---|
746 | continue; |
---|
747 | } |
---|
748 | |
---|
749 | testBlkParam = *(mergeList[mergeType]); |
---|
750 | //normalized distortion |
---|
751 | Double normDist=0; |
---|
752 | for(Int compIdx=0; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
---|
753 | { |
---|
754 | testBlkParam[compIdx].modeIdc = SAO_MODE_MERGE; |
---|
755 | testBlkParam[compIdx].typeIdc = mergeType; |
---|
756 | |
---|
757 | SAOOffset& mergedOffsetParam = (*(mergeList[mergeType]))[compIdx]; |
---|
758 | |
---|
759 | if( mergedOffsetParam.modeIdc != SAO_MODE_OFF) |
---|
760 | { |
---|
761 | //offsets have been reconstructed. Don't call inversed quantization function. |
---|
762 | normDist += (((Double)getDistortion(ctu, compIdx, mergedOffsetParam.typeIdc, mergedOffsetParam.typeAuxInfo, mergedOffsetParam.offset, blkStats[ctu][compIdx][mergedOffsetParam.typeIdc])) |
---|
763 | /m_lambda[compIdx] |
---|
764 | ); |
---|
765 | } |
---|
766 | |
---|
767 | } |
---|
768 | |
---|
769 | //rate |
---|
770 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
---|
771 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
772 | #if SVC_EXTENSION |
---|
773 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(testBlkParam, getSaoMaxOffsetQVal(), sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
---|
774 | #else |
---|
775 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(testBlkParam, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
---|
776 | #endif |
---|
777 | Int rate = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
778 | |
---|
779 | cost = normDist+(Double)rate; |
---|
780 | |
---|
781 | if(cost < modeNormCost) |
---|
782 | { |
---|
783 | modeNormCost = cost; |
---|
784 | modeParam = testBlkParam; |
---|
785 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
786 | } |
---|
787 | } |
---|
788 | |
---|
789 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
790 | |
---|
791 | |
---|
792 | } |
---|
793 | |
---|
794 | Void TEncSampleAdaptiveOffset::decideBlkParams(TComPic* pic, Bool* sliceEnabled, SAOStatData*** blkStats, TComPicYuv* srcYuv, TComPicYuv* resYuv, SAOBlkParam* reconParams, SAOBlkParam* codedParams) |
---|
795 | { |
---|
796 | Bool isAllBlksDisabled = false; |
---|
797 | if(!sliceEnabled[SAO_Y] && !sliceEnabled[SAO_Cb] && !sliceEnabled[SAO_Cr]) |
---|
798 | { |
---|
799 | isAllBlksDisabled = true; |
---|
800 | } |
---|
801 | |
---|
802 | m_pcRDGoOnSbacCoder->load(m_pppcRDSbacCoder[ SAO_CABACSTATE_PIC_INIT ]); |
---|
803 | |
---|
804 | SAOBlkParam modeParam; |
---|
805 | Double minCost, modeCost; |
---|
806 | |
---|
807 | for(Int ctu=0; ctu< m_numCTUsPic; ctu++) |
---|
808 | { |
---|
809 | if(isAllBlksDisabled) |
---|
810 | { |
---|
811 | codedParams[ctu].reset(); |
---|
812 | continue; |
---|
813 | } |
---|
814 | |
---|
815 | m_pcRDGoOnSbacCoder->store(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_CUR ]); |
---|
816 | |
---|
817 | //get merge list |
---|
818 | std::vector<SAOBlkParam*> mergeList; |
---|
819 | getMergeList(pic, ctu, reconParams, mergeList); |
---|
820 | |
---|
821 | minCost = MAX_DOUBLE; |
---|
822 | for(Int mode=0; mode < NUM_SAO_MODES; mode++) |
---|
823 | { |
---|
824 | switch(mode) |
---|
825 | { |
---|
826 | case SAO_MODE_OFF: |
---|
827 | { |
---|
828 | continue; //not necessary, since all-off case will be tested in SAO_MODE_NEW case. |
---|
829 | } |
---|
830 | break; |
---|
831 | case SAO_MODE_NEW: |
---|
832 | { |
---|
833 | deriveModeNewRDO(ctu, mergeList, sliceEnabled, blkStats, modeParam, modeCost, m_pppcRDSbacCoder, SAO_CABACSTATE_BLK_CUR); |
---|
834 | |
---|
835 | } |
---|
836 | break; |
---|
837 | case SAO_MODE_MERGE: |
---|
838 | { |
---|
839 | deriveModeMergeRDO(ctu, mergeList, sliceEnabled, blkStats , modeParam, modeCost, m_pppcRDSbacCoder, SAO_CABACSTATE_BLK_CUR); |
---|
840 | } |
---|
841 | break; |
---|
842 | default: |
---|
843 | { |
---|
844 | printf("Not a supported SAO mode\n"); |
---|
845 | assert(0); |
---|
846 | exit(-1); |
---|
847 | } |
---|
848 | } |
---|
849 | |
---|
850 | if(modeCost < minCost) |
---|
851 | { |
---|
852 | minCost = modeCost; |
---|
853 | codedParams[ctu] = modeParam; |
---|
854 | m_pcRDGoOnSbacCoder->store(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_NEXT ]); |
---|
855 | |
---|
856 | } |
---|
857 | } //mode |
---|
858 | m_pcRDGoOnSbacCoder->load(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_NEXT ]); |
---|
859 | |
---|
860 | //apply reconstructed offsets |
---|
861 | reconParams[ctu] = codedParams[ctu]; |
---|
862 | reconstructBlkSAOParam(reconParams[ctu], mergeList); |
---|
863 | offsetCTU(ctu, srcYuv, resYuv, reconParams[ctu], pic); |
---|
864 | } //ctu |
---|
865 | |
---|
866 | #if SAO_ENCODING_CHOICE |
---|
867 | Int picTempLayer = pic->getSlice(0)->getDepth(); |
---|
868 | Int numLcusForSAOOff[NUM_SAO_COMPONENTS]; |
---|
869 | numLcusForSAOOff[SAO_Y ] = numLcusForSAOOff[SAO_Cb]= numLcusForSAOOff[SAO_Cr]= 0; |
---|
870 | |
---|
871 | for (Int compIdx=0; compIdx<NUM_SAO_COMPONENTS; compIdx++) |
---|
872 | { |
---|
873 | for(Int ctu=0; ctu< m_numCTUsPic; ctu++) |
---|
874 | { |
---|
875 | if( reconParams[ctu][compIdx].modeIdc == SAO_MODE_OFF) |
---|
876 | { |
---|
877 | numLcusForSAOOff[compIdx]++; |
---|
878 | } |
---|
879 | } |
---|
880 | } |
---|
881 | #if SAO_ENCODING_CHOICE_CHROMA |
---|
882 | for (Int compIdx=0; compIdx<NUM_SAO_COMPONENTS; compIdx++) |
---|
883 | { |
---|
884 | m_saoDisabledRate[compIdx][picTempLayer] = (Double)numLcusForSAOOff[compIdx]/(Double)m_numCTUsPic; |
---|
885 | } |
---|
886 | #else |
---|
887 | if (picTempLayer == 0) |
---|
888 | { |
---|
889 | m_saoDisabledRate[SAO_Y][0] = (Double)(numLcusForSAOOff[SAO_Y]+numLcusForSAOOff[SAO_Cb]+numLcusForSAOOff[SAO_Cr])/(Double)(m_numCTUsPic*3); |
---|
890 | } |
---|
891 | #endif |
---|
892 | #endif |
---|
893 | } |
---|
894 | |
---|
895 | |
---|
896 | Void TEncSampleAdaptiveOffset::getBlkStats(Int compIdx, SAOStatData* statsDataTypes |
---|
897 | , Pel* srcBlk, Pel* orgBlk, Int srcStride, Int orgStride, Int width, Int height |
---|
898 | , Bool isLeftAvail, Bool isRightAvail, Bool isAboveAvail, Bool isBelowAvail, Bool isAboveLeftAvail, Bool isAboveRightAvail, Bool isBelowLeftAvail, Bool isBelowRightAvail |
---|
899 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
900 | , Bool isCalculatePreDeblockSamples |
---|
901 | #endif |
---|
902 | ) |
---|
903 | { |
---|
904 | if(m_lineBufWidth != m_maxCUWidth) |
---|
905 | { |
---|
906 | m_lineBufWidth = m_maxCUWidth; |
---|
907 | |
---|
908 | if (m_signLineBuf1) delete[] m_signLineBuf1; m_signLineBuf1 = NULL; |
---|
909 | m_signLineBuf1 = new Char[m_lineBufWidth+1]; |
---|
910 | |
---|
911 | if (m_signLineBuf2) delete[] m_signLineBuf2; m_signLineBuf2 = NULL; |
---|
912 | m_signLineBuf2 = new Char[m_lineBufWidth+1]; |
---|
913 | } |
---|
914 | |
---|
915 | Int x,y, startX, startY, endX, endY, edgeType, firstLineStartX, firstLineEndX; |
---|
916 | Char signLeft, signRight, signDown; |
---|
917 | Int64 *diff, *count; |
---|
918 | Pel *srcLine, *orgLine; |
---|
919 | Int* skipLinesR = m_skipLinesR[compIdx]; |
---|
920 | Int* skipLinesB = m_skipLinesB[compIdx]; |
---|
921 | |
---|
922 | for(Int typeIdx=0; typeIdx< NUM_SAO_NEW_TYPES; typeIdx++) |
---|
923 | { |
---|
924 | SAOStatData& statsData= statsDataTypes[typeIdx]; |
---|
925 | statsData.reset(); |
---|
926 | |
---|
927 | srcLine = srcBlk; |
---|
928 | orgLine = orgBlk; |
---|
929 | diff = statsData.diff; |
---|
930 | count = statsData.count; |
---|
931 | switch(typeIdx) |
---|
932 | { |
---|
933 | case SAO_TYPE_EO_0: |
---|
934 | { |
---|
935 | diff +=2; |
---|
936 | count+=2; |
---|
937 | endY = (isBelowAvail) ? (height - skipLinesB[typeIdx]) : height; |
---|
938 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
939 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
---|
940 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
941 | ; |
---|
942 | #else |
---|
943 | startX = isLeftAvail ? 0 : 1; |
---|
944 | #endif |
---|
945 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
946 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
947 | : (isRightAvail ? width : (width - 1)) |
---|
948 | ; |
---|
949 | #else |
---|
950 | endX = isRightAvail ? (width - skipLinesR[typeIdx]): (width - 1); |
---|
951 | #endif |
---|
952 | for (y=0; y<endY; y++) |
---|
953 | { |
---|
954 | signLeft = (Char)m_sign[srcLine[startX] - srcLine[startX-1]]; |
---|
955 | for (x=startX; x<endX; x++) |
---|
956 | { |
---|
957 | signRight = (Char)m_sign[srcLine[x] - srcLine[x+1]]; |
---|
958 | edgeType = signRight + signLeft; |
---|
959 | signLeft = -signRight; |
---|
960 | |
---|
961 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
962 | count[edgeType] ++; |
---|
963 | } |
---|
964 | srcLine += srcStride; |
---|
965 | orgLine += orgStride; |
---|
966 | } |
---|
967 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
968 | if(isCalculatePreDeblockSamples) |
---|
969 | { |
---|
970 | if(isBelowAvail) |
---|
971 | { |
---|
972 | startX = isLeftAvail ? 0 : 1; |
---|
973 | endX = isRightAvail ? width : (width -1); |
---|
974 | |
---|
975 | for(y=0; y<skipLinesB[typeIdx]; y++) |
---|
976 | { |
---|
977 | signLeft = (Char)m_sign[srcLine[startX] - srcLine[startX-1]]; |
---|
978 | for (x=startX; x<endX; x++) |
---|
979 | { |
---|
980 | signRight = (Char)m_sign[srcLine[x] - srcLine[x+1]]; |
---|
981 | edgeType = signRight + signLeft; |
---|
982 | signLeft = -signRight; |
---|
983 | |
---|
984 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
985 | count[edgeType] ++; |
---|
986 | } |
---|
987 | srcLine += srcStride; |
---|
988 | orgLine += orgStride; |
---|
989 | } |
---|
990 | } |
---|
991 | } |
---|
992 | #endif |
---|
993 | } |
---|
994 | break; |
---|
995 | case SAO_TYPE_EO_90: |
---|
996 | { |
---|
997 | diff +=2; |
---|
998 | count+=2; |
---|
999 | Char *signUpLine = m_signLineBuf1; |
---|
1000 | |
---|
1001 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1002 | startX = (!isCalculatePreDeblockSamples) ? 0 |
---|
1003 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : width) |
---|
1004 | ; |
---|
1005 | #endif |
---|
1006 | startY = isAboveAvail ? 0 : 1; |
---|
1007 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1008 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : width) |
---|
1009 | : width |
---|
1010 | ; |
---|
1011 | #else |
---|
1012 | endX = isRightAvail ? (width - skipLinesR[typeIdx]) : width ; |
---|
1013 | #endif |
---|
1014 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
---|
1015 | if (!isAboveAvail) |
---|
1016 | { |
---|
1017 | srcLine += srcStride; |
---|
1018 | orgLine += orgStride; |
---|
1019 | } |
---|
1020 | |
---|
1021 | Pel* srcLineAbove = srcLine - srcStride; |
---|
1022 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1023 | for (x=startX; x<endX; x++) |
---|
1024 | #else |
---|
1025 | for (x=0; x< endX; x++) |
---|
1026 | #endif |
---|
1027 | { |
---|
1028 | signUpLine[x] = (Char)m_sign[srcLine[x] - srcLineAbove[x]]; |
---|
1029 | } |
---|
1030 | |
---|
1031 | Pel* srcLineBelow; |
---|
1032 | for (y=startY; y<endY; y++) |
---|
1033 | { |
---|
1034 | srcLineBelow = srcLine + srcStride; |
---|
1035 | |
---|
1036 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1037 | for (x=startX; x<endX; x++) |
---|
1038 | #else |
---|
1039 | for (x=0; x<endX; x++) |
---|
1040 | #endif |
---|
1041 | { |
---|
1042 | signDown = (Char)m_sign[srcLine[x] - srcLineBelow[x]]; |
---|
1043 | edgeType = signDown + signUpLine[x]; |
---|
1044 | signUpLine[x]= -signDown; |
---|
1045 | |
---|
1046 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
1047 | count[edgeType] ++; |
---|
1048 | } |
---|
1049 | srcLine += srcStride; |
---|
1050 | orgLine += orgStride; |
---|
1051 | } |
---|
1052 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1053 | if(isCalculatePreDeblockSamples) |
---|
1054 | { |
---|
1055 | if(isBelowAvail) |
---|
1056 | { |
---|
1057 | startX = 0; |
---|
1058 | endX = width; |
---|
1059 | |
---|
1060 | for(y=0; y<skipLinesB[typeIdx]; y++) |
---|
1061 | { |
---|
1062 | srcLineBelow = srcLine + srcStride; |
---|
1063 | srcLineAbove = srcLine - srcStride; |
---|
1064 | |
---|
1065 | for (x=startX; x<endX; x++) |
---|
1066 | { |
---|
1067 | edgeType = m_sign[srcLine[x] - srcLineBelow[x]] + m_sign[srcLine[x] - srcLineAbove[x]]; |
---|
1068 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
1069 | count[edgeType] ++; |
---|
1070 | } |
---|
1071 | srcLine += srcStride; |
---|
1072 | orgLine += orgStride; |
---|
1073 | } |
---|
1074 | } |
---|
1075 | } |
---|
1076 | #endif |
---|
1077 | |
---|
1078 | } |
---|
1079 | break; |
---|
1080 | case SAO_TYPE_EO_135: |
---|
1081 | { |
---|
1082 | diff +=2; |
---|
1083 | count+=2; |
---|
1084 | Char *signUpLine, *signDownLine, *signTmpLine; |
---|
1085 | |
---|
1086 | signUpLine = m_signLineBuf1; |
---|
1087 | signDownLine= m_signLineBuf2; |
---|
1088 | |
---|
1089 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1090 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
---|
1091 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
1092 | ; |
---|
1093 | #else |
---|
1094 | startX = isLeftAvail ? 0 : 1 ; |
---|
1095 | #endif |
---|
1096 | |
---|
1097 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1098 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]): (width - 1)) |
---|
1099 | : (isRightAvail ? width : (width - 1)) |
---|
1100 | ; |
---|
1101 | #else |
---|
1102 | endX = isRightAvail ? (width - skipLinesR[typeIdx]): (width - 1); |
---|
1103 | #endif |
---|
1104 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
---|
1105 | |
---|
1106 | //prepare 2nd line's upper sign |
---|
1107 | Pel* srcLineBelow = srcLine + srcStride; |
---|
1108 | for (x=startX; x<endX+1; x++) |
---|
1109 | { |
---|
1110 | signUpLine[x] = (Char)m_sign[srcLineBelow[x] - srcLine[x-1]]; |
---|
1111 | } |
---|
1112 | |
---|
1113 | //1st line |
---|
1114 | Pel* srcLineAbove = srcLine - srcStride; |
---|
1115 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1116 | firstLineStartX = (!isCalculatePreDeblockSamples) ? (isAboveLeftAvail ? 0 : 1) : startX; |
---|
1117 | firstLineEndX = (!isCalculatePreDeblockSamples) ? (isAboveAvail ? endX : 1) : endX; |
---|
1118 | #else |
---|
1119 | firstLineStartX = isAboveLeftAvail ? 0 : 1; |
---|
1120 | firstLineEndX = isAboveAvail ? endX : 1; |
---|
1121 | #endif |
---|
1122 | for(x=firstLineStartX; x<firstLineEndX; x++) |
---|
1123 | { |
---|
1124 | edgeType = m_sign[srcLine[x] - srcLineAbove[x-1]] - signUpLine[x+1]; |
---|
1125 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
1126 | count[edgeType] ++; |
---|
1127 | } |
---|
1128 | srcLine += srcStride; |
---|
1129 | orgLine += orgStride; |
---|
1130 | |
---|
1131 | |
---|
1132 | //middle lines |
---|
1133 | for (y=1; y<endY; y++) |
---|
1134 | { |
---|
1135 | srcLineBelow = srcLine + srcStride; |
---|
1136 | |
---|
1137 | for (x=startX; x<endX; x++) |
---|
1138 | { |
---|
1139 | signDown = (Char)m_sign[srcLine[x] - srcLineBelow[x+1]] ; |
---|
1140 | edgeType = signDown + signUpLine[x]; |
---|
1141 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
1142 | count[edgeType] ++; |
---|
1143 | |
---|
1144 | signDownLine[x+1] = -signDown; |
---|
1145 | } |
---|
1146 | signDownLine[startX] = (Char)m_sign[srcLineBelow[startX] - srcLine[startX-1]]; |
---|
1147 | |
---|
1148 | signTmpLine = signUpLine; |
---|
1149 | signUpLine = signDownLine; |
---|
1150 | signDownLine = signTmpLine; |
---|
1151 | |
---|
1152 | srcLine += srcStride; |
---|
1153 | orgLine += orgStride; |
---|
1154 | } |
---|
1155 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1156 | if(isCalculatePreDeblockSamples) |
---|
1157 | { |
---|
1158 | if(isBelowAvail) |
---|
1159 | { |
---|
1160 | startX = isLeftAvail ? 0 : 1 ; |
---|
1161 | endX = isRightAvail ? width : (width -1); |
---|
1162 | |
---|
1163 | for(y=0; y<skipLinesB[typeIdx]; y++) |
---|
1164 | { |
---|
1165 | srcLineBelow = srcLine + srcStride; |
---|
1166 | srcLineAbove = srcLine - srcStride; |
---|
1167 | |
---|
1168 | for (x=startX; x< endX; x++) |
---|
1169 | { |
---|
1170 | edgeType = m_sign[srcLine[x] - srcLineBelow[x+1]] + m_sign[srcLine[x] - srcLineAbove[x-1]]; |
---|
1171 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
1172 | count[edgeType] ++; |
---|
1173 | } |
---|
1174 | srcLine += srcStride; |
---|
1175 | orgLine += orgStride; |
---|
1176 | } |
---|
1177 | } |
---|
1178 | } |
---|
1179 | #endif |
---|
1180 | } |
---|
1181 | break; |
---|
1182 | case SAO_TYPE_EO_45: |
---|
1183 | { |
---|
1184 | diff +=2; |
---|
1185 | count+=2; |
---|
1186 | Char *signUpLine = m_signLineBuf1+1; |
---|
1187 | |
---|
1188 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1189 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
---|
1190 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
1191 | ; |
---|
1192 | #else |
---|
1193 | startX = isLeftAvail ? 0 : 1; |
---|
1194 | #endif |
---|
1195 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1196 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
1197 | : (isRightAvail ? width : (width - 1)) |
---|
1198 | ; |
---|
1199 | #else |
---|
1200 | endX = isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1); |
---|
1201 | #endif |
---|
1202 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
---|
1203 | |
---|
1204 | //prepare 2nd line upper sign |
---|
1205 | Pel* srcLineBelow = srcLine + srcStride; |
---|
1206 | for (x=startX-1; x<endX; x++) |
---|
1207 | { |
---|
1208 | signUpLine[x] = (Char)m_sign[srcLineBelow[x] - srcLine[x+1]]; |
---|
1209 | } |
---|
1210 | |
---|
1211 | |
---|
1212 | //first line |
---|
1213 | Pel* srcLineAbove = srcLine - srcStride; |
---|
1214 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1215 | firstLineStartX = (!isCalculatePreDeblockSamples) ? (isAboveAvail ? startX : endX) |
---|
1216 | : startX |
---|
1217 | ; |
---|
1218 | firstLineEndX = (!isCalculatePreDeblockSamples) ? ((!isRightAvail && isAboveRightAvail) ? width : endX) |
---|
1219 | : endX |
---|
1220 | ; |
---|
1221 | #else |
---|
1222 | firstLineStartX = isAboveAvail ? startX : endX; |
---|
1223 | firstLineEndX = (!isRightAvail && isAboveRightAvail) ? width : endX; |
---|
1224 | #endif |
---|
1225 | for(x=firstLineStartX; x<firstLineEndX; x++) |
---|
1226 | { |
---|
1227 | edgeType = m_sign[srcLine[x] - srcLineAbove[x+1]] - signUpLine[x-1]; |
---|
1228 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
1229 | count[edgeType] ++; |
---|
1230 | } |
---|
1231 | |
---|
1232 | srcLine += srcStride; |
---|
1233 | orgLine += orgStride; |
---|
1234 | |
---|
1235 | //middle lines |
---|
1236 | for (y=1; y<endY; y++) |
---|
1237 | { |
---|
1238 | srcLineBelow = srcLine + srcStride; |
---|
1239 | |
---|
1240 | for(x=startX; x<endX; x++) |
---|
1241 | { |
---|
1242 | signDown = (Char)m_sign[srcLine[x] - srcLineBelow[x-1]] ; |
---|
1243 | edgeType = signDown + signUpLine[x]; |
---|
1244 | |
---|
1245 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
1246 | count[edgeType] ++; |
---|
1247 | |
---|
1248 | signUpLine[x-1] = -signDown; |
---|
1249 | } |
---|
1250 | signUpLine[endX-1] = (Char)m_sign[srcLineBelow[endX-1] - srcLine[endX]]; |
---|
1251 | srcLine += srcStride; |
---|
1252 | orgLine += orgStride; |
---|
1253 | } |
---|
1254 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1255 | if(isCalculatePreDeblockSamples) |
---|
1256 | { |
---|
1257 | if(isBelowAvail) |
---|
1258 | { |
---|
1259 | startX = isLeftAvail ? 0 : 1 ; |
---|
1260 | endX = isRightAvail ? width : (width -1); |
---|
1261 | |
---|
1262 | for(y=0; y<skipLinesB[typeIdx]; y++) |
---|
1263 | { |
---|
1264 | srcLineBelow = srcLine + srcStride; |
---|
1265 | srcLineAbove = srcLine - srcStride; |
---|
1266 | |
---|
1267 | for (x=startX; x<endX; x++) |
---|
1268 | { |
---|
1269 | edgeType = m_sign[srcLine[x] - srcLineBelow[x-1]] + m_sign[srcLine[x] - srcLineAbove[x+1]]; |
---|
1270 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
1271 | count[edgeType] ++; |
---|
1272 | } |
---|
1273 | srcLine += srcStride; |
---|
1274 | orgLine += orgStride; |
---|
1275 | } |
---|
1276 | } |
---|
1277 | } |
---|
1278 | #endif |
---|
1279 | } |
---|
1280 | break; |
---|
1281 | case SAO_TYPE_BO: |
---|
1282 | { |
---|
1283 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1284 | startX = (!isCalculatePreDeblockSamples)?0 |
---|
1285 | :( isRightAvail?(width- skipLinesR[typeIdx]):width) |
---|
1286 | ; |
---|
1287 | endX = (!isCalculatePreDeblockSamples)?(isRightAvail ? (width - skipLinesR[typeIdx]) : width ) |
---|
1288 | :width |
---|
1289 | ; |
---|
1290 | #else |
---|
1291 | endX = isRightAvail ? (width- skipLinesR[typeIdx]) : width; |
---|
1292 | #endif |
---|
1293 | endY = isBelowAvail ? (height- skipLinesB[typeIdx]) : height; |
---|
1294 | Int shiftBits = ((compIdx == SAO_Y)?g_bitDepthY:g_bitDepthC)- NUM_SAO_BO_CLASSES_LOG2; |
---|
1295 | for (y=0; y< endY; y++) |
---|
1296 | { |
---|
1297 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1298 | for (x=startX; x< endX; x++) |
---|
1299 | #else |
---|
1300 | for (x=0; x< endX; x++) |
---|
1301 | #endif |
---|
1302 | { |
---|
1303 | |
---|
1304 | Int bandIdx= srcLine[x] >> shiftBits; |
---|
1305 | diff [bandIdx] += (orgLine[x] - srcLine[x]); |
---|
1306 | count[bandIdx] ++; |
---|
1307 | } |
---|
1308 | srcLine += srcStride; |
---|
1309 | orgLine += orgStride; |
---|
1310 | } |
---|
1311 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
---|
1312 | if(isCalculatePreDeblockSamples) |
---|
1313 | { |
---|
1314 | if(isBelowAvail) |
---|
1315 | { |
---|
1316 | startX = 0; |
---|
1317 | endX = width; |
---|
1318 | |
---|
1319 | for(y= 0; y< skipLinesB[typeIdx]; y++) |
---|
1320 | { |
---|
1321 | for (x=startX; x< endX; x++) |
---|
1322 | { |
---|
1323 | Int bandIdx= srcLine[x] >> shiftBits; |
---|
1324 | diff [bandIdx] += (orgLine[x] - srcLine[x]); |
---|
1325 | count[bandIdx] ++; |
---|
1326 | } |
---|
1327 | srcLine += srcStride; |
---|
1328 | orgLine += orgStride; |
---|
1329 | |
---|
1330 | } |
---|
1331 | |
---|
1332 | } |
---|
1333 | } |
---|
1334 | #endif |
---|
1335 | } |
---|
1336 | break; |
---|
1337 | default: |
---|
1338 | { |
---|
1339 | printf("Not a supported SAO types\n"); |
---|
1340 | assert(0); |
---|
1341 | exit(-1); |
---|
1342 | } |
---|
1343 | } |
---|
1344 | } |
---|
1345 | } |
---|
1346 | |
---|
1347 | //! \} |
---|