1 /*!
2 * \copy
3 * Copyright (c) 2009-2013, Cisco Systems
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 *
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 *
32 * \file param_svc.h
33 *
34 * \brief Configurable parameters in H.264/SVC Encoder
35 *
36 * \date 4/20/2009 Created
37 *
38 *************************************************************************************
39 */
40 #if !defined(WELS_ENCODER_PARAMETER_SVC_H__)
41 #define WELS_ENCODER_PARAMETER_SVC_H__
42
43 #include <string.h>
44 #include <math.h>
45 #include "typedefs.h"
46 #include "codec_def.h"
47 #include "macros.h"
48 #include "wels_const.h"
49 #include "rc.h"
50 #include "svc_enc_slice_segment.h"
51 #include "as264_common.h"
52
53 namespace WelsEnc {
54
55 #define INVALID_TEMPORAL_ID ((uint8_t)0xff)
56
57 extern const uint8_t g_kuiTemporalIdListTable[MAX_TEMPORAL_LEVEL][MAX_GOP_SIZE + 1];
58
59 /*!
60 * \brief get Logarithms base 2 of (upper/base)
61 * \param base based scaler
62 * \param upper input upper value
63 * \return 2 based scaling factor
64 */
GetLogFactor(float base,float upper)65 static inline uint32_t GetLogFactor (float base, float upper) {
66 #if defined(_M_X64) && _MSC_VER == 1800
67 _set_FMA3_enable(0);
68 #endif
69 const double dLog2factor = log10 (1.0 * upper / base) / log10 (2.0);
70 const double dEpsilon = 0.0001;
71 const double dRound = floor (dLog2factor + 0.5);
72
73 if (dLog2factor < dRound + dEpsilon && dRound < dLog2factor + dEpsilon) {
74 return (uint32_t) (dRound);
75 }
76 return UINT_MAX;
77 }
78
79 /*
80 * Dependency Layer Parameter
81 */
82 typedef struct TagDLayerParam {
83 int32_t iActualWidth; // input source picture actual width
84 int32_t iActualHeight; // input source picture actual height
85 int32_t iTemporalResolution;
86 int32_t iDecompositionStages;
87 uint8_t uiCodingIdx2TemporalId[ (1 << MAX_TEMPORAL_LEVEL) + 1];
88
89 int8_t iHighestTemporalId;
90 float fInputFrameRate; // input frame rate
91 float fOutputFrameRate; // output frame rate
92 uint16_t uiIdrPicId; // IDR picture id: [0, 65535], this one is used for LTR
93 int32_t iCodingIndex;
94 int32_t iFrameIndex; // count how many frames elapsed during coding context currently
95 bool bEncCurFrmAsIdrFlag;
96 int32_t iFrameNum; // current frame number coding
97 int32_t iPOC; // frame iPOC
98 #ifdef ENABLE_FRAME_DUMP
99 char sRecFileName[MAX_FNAME_LEN]; // file to be constructed
100 #endif//ENABLE_FRAME_DUMP
101 } SSpatialLayerInternal;
102
103 /*
104 * Cisco OpenH264 Encoder Parameter Configuration
105 */
106 typedef struct TagWelsSvcCodingParam: SEncParamExt {
107 SSpatialLayerInternal sDependencyLayers[MAX_DEPENDENCY_LAYER];
108
109 /* General */
110 uint32_t uiGopSize; // GOP size (at maximal frame rate: 16)
111 struct {
112 int32_t iLeft;
113 int32_t iTop;
114 int32_t iWidth;
115 int32_t iHeight;
116 } SUsedPicRect; // the rect in input picture that encoder actually used
117
118 char* pCurPath; // record current lib path such as:/pData/pData/com.wels.enc/lib/
119
120 bool bDeblockingParallelFlag; // deblocking filter parallelization control flag
121 int32_t iBitsVaryPercentage;
122
123 int8_t iDecompStages; // GOP size dependency
124 int32_t iMaxNumRefFrame;
125
126 public:
TagWelsSvcCodingParamTagWelsSvcCodingParam127 TagWelsSvcCodingParam() {
128 FillDefault();
129 }
~TagWelsSvcCodingParamTagWelsSvcCodingParam130 ~TagWelsSvcCodingParam() {}
131
FillDefaultTagWelsSvcCodingParam132 static void FillDefault (SEncParamExt& param) {
133 memset (¶m, 0, sizeof (param));
134 param.uiIntraPeriod = 0; // intra period (multiple of GOP size as desired)
135 param.iNumRefFrame = AUTO_REF_PIC_COUNT;// number of reference frame used
136
137 param.iPicWidth = 0; // actual input picture width
138 param.iPicHeight = 0; // actual input picture height
139
140 param.fMaxFrameRate = MAX_FRAME_RATE; // maximal frame rate [Hz / fps]
141
142 param.iComplexityMode = LOW_COMPLEXITY;
143 param.iTargetBitrate = UNSPECIFIED_BIT_RATE; // overall target bitrate introduced in RC module
144 param.iMaxBitrate = UNSPECIFIED_BIT_RATE;
145 param.iMultipleThreadIdc = 1;
146 param.bUseLoadBalancing = true;
147
148 param.iLTRRefNum = 0;
149 param.iLtrMarkPeriod = 30; //the min distance of two int32_t references
150
151 param.bEnableSSEI = false;
152 param.bSimulcastAVC = false;
153 param.bEnableFrameCroppingFlag = true; // enable frame cropping flag: true alwayse in application
154 // false: Streaming Video Sharing; true: Video Conferencing Meeting;
155
156 /* Deblocking loop filter */
157 param.iLoopFilterDisableIdc = 0; // 0: on, 1: off, 2: on except for slice boundaries
158 param.iLoopFilterAlphaC0Offset = 0; // AlphaOffset: valid range [-6, 6], default 0
159 param.iLoopFilterBetaOffset = 0; // BetaOffset: valid range [-6, 6], default 0
160
161 /* Rate Control */
162 param.iRCMode = RC_QUALITY_MODE;
163 param.iPaddingFlag = 0;
164 param.iEntropyCodingModeFlag = 0;
165 param.bEnableDenoise = false; // denoise control
166 param.bEnableSceneChangeDetect = true; // scene change detection control
167 param.bEnableBackgroundDetection = true; // background detection control
168 param.bEnableAdaptiveQuant = true; // adaptive quantization control
169 param.bEnableFrameSkip = true; // frame skipping
170 param.bEnableLongTermReference = false; // long term reference control
171 param.eSpsPpsIdStrategy = INCREASING_ID;// pSps pPps id addition control
172 param.bPrefixNalAddingCtrl = false; // prefix NAL adding control
173 param.iSpatialLayerNum = 1; // number of dependency(Spatial/CGS) layers used to be encoded
174 param.iTemporalLayerNum = 1; // number of temporal layer specified
175
176 param.iMaxQp = QP_MAX_VALUE;
177 param.iMinQp = QP_MIN_VALUE;
178 param.iUsageType = CAMERA_VIDEO_REAL_TIME;
179 param.uiMaxNalSize = 0;
180 param.bIsLosslessLink = false;
181 for (int32_t iLayer = 0; iLayer < MAX_SPATIAL_LAYER_NUM; iLayer++) {
182 param.sSpatialLayers[iLayer].uiProfileIdc = PRO_UNKNOWN;
183 param.sSpatialLayers[iLayer].uiLevelIdc = LEVEL_UNKNOWN;
184 param.sSpatialLayers[iLayer].iDLayerQp = SVC_QUALITY_BASE_QP;
185 param.sSpatialLayers[iLayer].fFrameRate = param.fMaxFrameRate;
186
187 param.sSpatialLayers[iLayer].iMaxSpatialBitrate = UNSPECIFIED_BIT_RATE;
188
189 param.sSpatialLayers[iLayer].sSliceArgument.uiSliceMode = SM_SINGLE_SLICE;
190 param.sSpatialLayers[iLayer].sSliceArgument.uiSliceNum = 0; //AUTO, using number of CPU cores
191 param.sSpatialLayers[iLayer].sSliceArgument.uiSliceSizeConstraint = 1500;
192
193 param.sSpatialLayers[iLayer].bAspectRatioPresent = false; // do not write any of the following information to the header
194 param.sSpatialLayers[iLayer].eAspectRatio = ASP_UNSPECIFIED;
195 param.sSpatialLayers[iLayer].sAspectRatioExtWidth = 0;
196 param.sSpatialLayers[iLayer].sAspectRatioExtHeight = 0;
197
198 const int32_t kiLesserSliceNum = ((MAX_SLICES_NUM < MAX_SLICES_NUM_TMP) ? MAX_SLICES_NUM : MAX_SLICES_NUM_TMP);
199 for (int32_t idx = 0; idx < kiLesserSliceNum; idx++)
200 param.sSpatialLayers[iLayer].sSliceArgument.uiSliceMbNum[idx] = 0; //default, using one row a slice if uiSliceMode is SM_RASTER_MODE
201
202 // See codec_app_def.h for more info about members bVideoSignalTypePresent through uiColorMatrix. The default values
203 // used below preserve the previous behavior; i.e., no additional information will be written to the output file.
204 param.sSpatialLayers[iLayer].bVideoSignalTypePresent = false; // do not write any of the following information to the header
205 param.sSpatialLayers[iLayer].uiVideoFormat = VF_UNDEF; // undefined
206 param.sSpatialLayers[iLayer].bFullRange = false; // analog video data range [16, 235]
207 param.sSpatialLayers[iLayer].bColorDescriptionPresent = false; // do not write any of the following three items to the header
208 param.sSpatialLayers[iLayer].uiColorPrimaries = CP_UNDEF; // undefined
209 param.sSpatialLayers[iLayer].uiTransferCharacteristics = TRC_UNDEF; // undefined
210 param.sSpatialLayers[iLayer].uiColorMatrix = CM_UNDEF; // undefined
211 }
212 }
213
FillDefaultTagWelsSvcCodingParam214 void FillDefault() {
215 FillDefault (*this);
216 uiGopSize = 1; // GOP size (at maximal frame rate: 16)
217 iMaxNumRefFrame = AUTO_REF_PIC_COUNT;
218 SUsedPicRect.iLeft =
219 SUsedPicRect.iTop =
220 SUsedPicRect.iWidth =
221 SUsedPicRect.iHeight = 0; // the rect in input picture that encoder actually used
222
223 pCurPath = NULL; // record current lib path such as:/pData/pData/com.wels.enc/lib/
224
225 bDeblockingParallelFlag = false;// deblocking filter parallelization control flag
226
227 iDecompStages = 0; // GOP size dependency, unknown here and be revised later
228 iBitsVaryPercentage = 10;
229 }
230
ParamBaseTranscodeTagWelsSvcCodingParam231 int32_t ParamBaseTranscode (const SEncParamBase& pCodingParam) {
232
233 fMaxFrameRate = WELS_CLIP3 (pCodingParam.fMaxFrameRate, MIN_FRAME_RATE, MAX_FRAME_RATE);
234 iTargetBitrate = pCodingParam.iTargetBitrate;
235 iUsageType = pCodingParam.iUsageType;
236 iPicWidth = pCodingParam.iPicWidth;
237 iPicHeight = pCodingParam.iPicHeight;
238
239 SUsedPicRect.iLeft = 0;
240 SUsedPicRect.iTop = 0;
241 SUsedPicRect.iWidth = ((iPicWidth >> 1) * (1 << 1));
242 SUsedPicRect.iHeight = ((iPicHeight >> 1) * (1 << 1));
243
244 iRCMode = pCodingParam.iRCMode; // rc mode
245
246 int8_t iIdxSpatial = 0;
247 EProfileIdc uiProfileIdc = PRO_UNKNOWN;
248 if (iEntropyCodingModeFlag)
249 uiProfileIdc = PRO_MAIN;
250 SSpatialLayerInternal* pDlp = &sDependencyLayers[0];
251
252 while (iIdxSpatial < iSpatialLayerNum) {
253
254 sSpatialLayers->uiProfileIdc = uiProfileIdc;
255 sSpatialLayers->uiLevelIdc = LEVEL_UNKNOWN;
256 sSpatialLayers[iIdxSpatial].fFrameRate = WELS_CLIP3 (pCodingParam.fMaxFrameRate,
257 MIN_FRAME_RATE, MAX_FRAME_RATE);
258 pDlp->fInputFrameRate =
259 pDlp->fOutputFrameRate = WELS_CLIP3 (sSpatialLayers[iIdxSpatial].fFrameRate, MIN_FRAME_RATE,
260 MAX_FRAME_RATE);
261 #ifdef ENABLE_FRAME_DUMP
262 pDlp->sRecFileName[0] = '\0'; // file to be constructed
263 #endif//ENABLE_FRAME_DUMP
264 pDlp->iActualWidth = sSpatialLayers[iIdxSpatial].iVideoWidth = iPicWidth;
265 pDlp->iActualHeight = sSpatialLayers[iIdxSpatial].iVideoHeight = iPicHeight;
266
267 sSpatialLayers->iSpatialBitrate =
268 sSpatialLayers[iIdxSpatial].iSpatialBitrate = pCodingParam.iTargetBitrate; // target bitrate for current spatial layer
269
270 sSpatialLayers->iMaxSpatialBitrate = UNSPECIFIED_BIT_RATE;
271 sSpatialLayers->iDLayerQp = SVC_QUALITY_BASE_QP;
272
273 uiProfileIdc = (!bSimulcastAVC) ? PRO_SCALABLE_BASELINE : uiProfileIdc;
274 ++ pDlp;
275 ++ iIdxSpatial;
276 }
277 SetActualPicResolution();
278
279 return 0;
280 }
GetBaseParamsTagWelsSvcCodingParam281 void GetBaseParams (SEncParamBase* pCodingParam) {
282 pCodingParam->iUsageType = iUsageType;
283 pCodingParam->iPicWidth = iPicWidth;
284 pCodingParam->iPicHeight = iPicHeight;
285 pCodingParam->iTargetBitrate = iTargetBitrate;
286 pCodingParam->iRCMode = iRCMode;
287 pCodingParam->fMaxFrameRate = fMaxFrameRate;
288 }
ParamTranscodeTagWelsSvcCodingParam289 int32_t ParamTranscode (const SEncParamExt& pCodingParam) {
290 float fParamMaxFrameRate = WELS_CLIP3 (pCodingParam.fMaxFrameRate, MIN_FRAME_RATE, MAX_FRAME_RATE);
291
292 iUsageType = pCodingParam.iUsageType;
293 iPicWidth = pCodingParam.iPicWidth;
294 iPicHeight = pCodingParam.iPicHeight;
295 fMaxFrameRate = fParamMaxFrameRate;
296 iComplexityMode = pCodingParam.iComplexityMode;
297
298 SUsedPicRect.iLeft = 0;
299 SUsedPicRect.iTop = 0;
300 SUsedPicRect.iWidth = ((iPicWidth >> 1) << 1);
301 SUsedPicRect.iHeight = ((iPicHeight >> 1) << 1);
302
303 iMultipleThreadIdc = pCodingParam.iMultipleThreadIdc;
304 bUseLoadBalancing = pCodingParam.bUseLoadBalancing;
305
306 /* Deblocking loop filter */
307 iLoopFilterDisableIdc = pCodingParam.iLoopFilterDisableIdc; // 0: on, 1: off, 2: on except for slice boundaries,
308 iLoopFilterAlphaC0Offset = pCodingParam.iLoopFilterAlphaC0Offset; // AlphaOffset: valid range [-6, 6], default 0
309 iLoopFilterBetaOffset = pCodingParam.iLoopFilterBetaOffset; // BetaOffset: valid range [-6, 6], default 0
310 iEntropyCodingModeFlag = pCodingParam.iEntropyCodingModeFlag;
311 bEnableFrameCroppingFlag = pCodingParam.bEnableFrameCroppingFlag;
312
313 /* Rate Control */
314 iRCMode = pCodingParam.iRCMode; // rc mode
315 bSimulcastAVC = pCodingParam.bSimulcastAVC;
316 iPaddingFlag = pCodingParam.iPaddingFlag;
317
318 iTargetBitrate = pCodingParam.iTargetBitrate; // target bitrate
319 iMaxBitrate = pCodingParam.iMaxBitrate;
320 if ((iMaxBitrate != UNSPECIFIED_BIT_RATE) && (iMaxBitrate < iTargetBitrate)) {
321 iMaxBitrate = iTargetBitrate;
322 }
323 iMaxQp = pCodingParam.iMaxQp;
324 iMinQp = pCodingParam.iMinQp;
325 uiMaxNalSize = pCodingParam.uiMaxNalSize;
326 /* Denoise Control */
327 bEnableDenoise = pCodingParam.bEnableDenoise ? true : false; // Denoise Control // only support 0 or 1 now
328
329 /* Scene change detection control */
330 bEnableSceneChangeDetect = pCodingParam.bEnableSceneChangeDetect;
331
332 /* Background detection Control */
333 bEnableBackgroundDetection = pCodingParam.bEnableBackgroundDetection ? true : false;
334
335 /* Adaptive quantization control */
336 bEnableAdaptiveQuant = pCodingParam.bEnableAdaptiveQuant ? true : false;
337
338 /* Frame skipping */
339 bEnableFrameSkip = pCodingParam.bEnableFrameSkip ? true : false;
340
341 /* Enable int32_t term reference */
342 bEnableLongTermReference = pCodingParam.bEnableLongTermReference ? true : false;
343 iLtrMarkPeriod = pCodingParam.iLtrMarkPeriod;
344 bIsLosslessLink = pCodingParam.bIsLosslessLink;
345 if (iUsageType == SCREEN_CONTENT_REAL_TIME && !bIsLosslessLink && bEnableLongTermReference) {
346 bEnableLongTermReference = false;
347 }
348
349 /* For ssei information */
350 bEnableSSEI = pCodingParam.bEnableSSEI;
351 bSimulcastAVC = pCodingParam.bSimulcastAVC;
352
353 /* Layer definition */
354 iSpatialLayerNum = (int8_t)WELS_CLIP3 (pCodingParam.iSpatialLayerNum, 1,
355 MAX_DEPENDENCY_LAYER); // number of dependency(Spatial/CGS) layers used to be encoded
356 iTemporalLayerNum = (int8_t)WELS_CLIP3 (pCodingParam.iTemporalLayerNum, 1,
357 MAX_TEMPORAL_LEVEL); // number of temporal layer specified
358
359 uiGopSize = 1 << (iTemporalLayerNum - 1); // Override GOP size based temporal layer
360 iDecompStages = iTemporalLayerNum - 1; // WELS_LOG2( uiGopSize );// GOP size dependency
361 uiIntraPeriod = pCodingParam.uiIntraPeriod;// intra period (multiple of GOP size as desired)
362 if (uiIntraPeriod == (uint32_t) (-1))
363 uiIntraPeriod = 0;
364 else if (uiIntraPeriod & (uiGopSize - 1)) // none multiple of GOP size
365 uiIntraPeriod = ((uiIntraPeriod + uiGopSize - 1) / uiGopSize) * uiGopSize;
366
367 if (((pCodingParam.iNumRefFrame != AUTO_REF_PIC_COUNT)
368 && !((pCodingParam.iNumRefFrame > MAX_REF_PIC_COUNT) || (pCodingParam.iNumRefFrame < MIN_REF_PIC_COUNT)))
369 || ((iNumRefFrame != AUTO_REF_PIC_COUNT) && (pCodingParam.iNumRefFrame == AUTO_REF_PIC_COUNT))) {
370 iNumRefFrame = pCodingParam.iNumRefFrame;
371 }
372 if ((iNumRefFrame != AUTO_REF_PIC_COUNT) && (iNumRefFrame > iMaxNumRefFrame)) {
373 iMaxNumRefFrame = iNumRefFrame;
374 }
375 iLTRRefNum = (pCodingParam.bEnableLongTermReference ? pCodingParam.iLTRRefNum : 0);
376 iLtrMarkPeriod = pCodingParam.iLtrMarkPeriod;
377
378 bPrefixNalAddingCtrl = pCodingParam.bPrefixNalAddingCtrl;
379
380 if ( (CONSTANT_ID == pCodingParam.eSpsPpsIdStrategy)
381 || (INCREASING_ID == pCodingParam.eSpsPpsIdStrategy)
382 || (SPS_LISTING == pCodingParam.eSpsPpsIdStrategy)
383 || (SPS_LISTING_AND_PPS_INCREASING == pCodingParam.eSpsPpsIdStrategy)
384 || (SPS_PPS_LISTING == pCodingParam.eSpsPpsIdStrategy)) {
385 eSpsPpsIdStrategy =
386 pCodingParam.eSpsPpsIdStrategy;//For SVC meeting application, to avoid mosaic issue caused by cross-IDR reference.
387 //SHOULD enable this feature.
388 } else {
389 // keep the default value
390 }
391
392 SSpatialLayerInternal* pDlp = &sDependencyLayers[0];
393 SSpatialLayerConfig* pSpatialLayer = &sSpatialLayers[0];
394 EProfileIdc uiProfileIdc = iEntropyCodingModeFlag ? PRO_HIGH : PRO_BASELINE;
395 int8_t iIdxSpatial = 0;
396 while (iIdxSpatial < iSpatialLayerNum) {
397 pSpatialLayer->uiProfileIdc = (pCodingParam.sSpatialLayers[iIdxSpatial].uiProfileIdc == PRO_UNKNOWN) ? uiProfileIdc :
398 pCodingParam.sSpatialLayers[iIdxSpatial].uiProfileIdc;
399 pSpatialLayer->uiLevelIdc = pCodingParam.sSpatialLayers[iIdxSpatial].uiLevelIdc;
400
401 float fLayerFrameRate = WELS_CLIP3 (pCodingParam.sSpatialLayers[iIdxSpatial].fFrameRate,
402 MIN_FRAME_RATE, fParamMaxFrameRate);
403 pDlp->fInputFrameRate = fParamMaxFrameRate;
404 pSpatialLayer->fFrameRate =
405 pDlp->fOutputFrameRate = WELS_CLIP3 (fLayerFrameRate, MIN_FRAME_RATE, fParamMaxFrameRate);
406
407 #ifdef ENABLE_FRAME_DUMP
408 pDlp->sRecFileName[0] = '\0'; // file to be constructed
409 #endif//ENABLE_FRAME_DUMP
410 pSpatialLayer->iVideoWidth = WELS_CLIP3 (pCodingParam.sSpatialLayers[iIdxSpatial].iVideoWidth, 0,
411 iPicWidth); // frame width
412 pSpatialLayer->iVideoHeight = WELS_CLIP3 (pCodingParam.sSpatialLayers[iIdxSpatial].iVideoHeight, 0,
413 iPicHeight);// frame height
414
415 pSpatialLayer->iSpatialBitrate =
416 pCodingParam.sSpatialLayers[iIdxSpatial].iSpatialBitrate; // target bitrate for current spatial layer
417 pSpatialLayer->iMaxSpatialBitrate =
418 pCodingParam.sSpatialLayers[iIdxSpatial].iMaxSpatialBitrate;
419
420 if ((iSpatialLayerNum==1) && (iIdxSpatial==0)) {
421 if (pSpatialLayer->iVideoWidth == 0) {
422 pSpatialLayer->iVideoWidth = iPicWidth;
423 }
424 if (pSpatialLayer->iVideoHeight == 0) {
425 pSpatialLayer->iVideoHeight = iPicHeight;
426 }
427 if (pSpatialLayer->iSpatialBitrate == 0) {
428 pSpatialLayer->iSpatialBitrate = iTargetBitrate;
429 }
430 if (pSpatialLayer->iMaxSpatialBitrate == 0) {
431 pSpatialLayer->iMaxSpatialBitrate = iMaxBitrate;
432 }
433 }
434
435 //multi slice
436 pSpatialLayer->sSliceArgument = pCodingParam.sSpatialLayers[iIdxSpatial].sSliceArgument;
437
438 memcpy (&(pSpatialLayer->sSliceArgument),
439 &(pCodingParam.sSpatialLayers[iIdxSpatial].sSliceArgument), // confirmed_safe_unsafe_usage
440 sizeof (SSliceArgument)) ;
441
442 pSpatialLayer->iDLayerQp = pCodingParam.sSpatialLayers[iIdxSpatial].iDLayerQp;
443
444 // See codec_app_def.h and parameter_sets.h for more info about members bVideoSignalTypePresent through uiColorMatrix.
445 pSpatialLayer->bVideoSignalTypePresent = pCodingParam.sSpatialLayers[iIdxSpatial].bVideoSignalTypePresent;
446 pSpatialLayer->uiVideoFormat = pCodingParam.sSpatialLayers[iIdxSpatial].uiVideoFormat;
447 pSpatialLayer->bFullRange = pCodingParam.sSpatialLayers[iIdxSpatial].bFullRange;
448 pSpatialLayer->bColorDescriptionPresent = pCodingParam.sSpatialLayers[iIdxSpatial].bColorDescriptionPresent;
449 pSpatialLayer->uiColorPrimaries = pCodingParam.sSpatialLayers[iIdxSpatial].uiColorPrimaries;
450 pSpatialLayer->uiTransferCharacteristics = pCodingParam.sSpatialLayers[iIdxSpatial].uiTransferCharacteristics;
451 pSpatialLayer->uiColorMatrix = pCodingParam.sSpatialLayers[iIdxSpatial].uiColorMatrix;
452
453 pSpatialLayer->bAspectRatioPresent = pCodingParam.sSpatialLayers[iIdxSpatial].bAspectRatioPresent;
454 pSpatialLayer->eAspectRatio = pCodingParam.sSpatialLayers[iIdxSpatial].eAspectRatio;
455 pSpatialLayer->sAspectRatioExtWidth = pCodingParam.sSpatialLayers[iIdxSpatial].sAspectRatioExtWidth;
456 pSpatialLayer->sAspectRatioExtHeight = pCodingParam.sSpatialLayers[iIdxSpatial].sAspectRatioExtHeight;
457
458 uiProfileIdc = (!bSimulcastAVC) ? PRO_SCALABLE_BASELINE : uiProfileIdc; //it is used in the D>0 layer if SVC is applied, so set to PRO_SCALABLE_BASELINE
459 ++ pDlp;
460 ++ pSpatialLayer;
461 ++ iIdxSpatial;
462 }
463
464 SetActualPicResolution();
465
466 return 0;
467 }
468
469 // assuming that the width/height ratio of all spatial layers are the same
470
SetActualPicResolutionTagWelsSvcCodingParam471 void SetActualPicResolution() {
472 int32_t iSpatialIdx = iSpatialLayerNum - 1;
473 for (; iSpatialIdx >= 0; iSpatialIdx --) {
474 SSpatialLayerInternal* pDlayerInternal = &sDependencyLayers[iSpatialIdx];
475 SSpatialLayerConfig* pDlayer = &sSpatialLayers[iSpatialIdx];
476
477 pDlayerInternal->iActualWidth = pDlayer->iVideoWidth;
478 pDlayerInternal->iActualHeight = pDlayer->iVideoHeight;
479 pDlayer->iVideoWidth = WELS_ALIGN (pDlayerInternal->iActualWidth, MB_WIDTH_LUMA);
480 pDlayer->iVideoHeight = WELS_ALIGN (pDlayerInternal->iActualHeight, MB_HEIGHT_LUMA);
481 }
482 }
483
484 /*!
485 * \brief determined key coding tables for temporal scalability, uiProfileIdc etc for each spatial layer settings
486 * \param SWelsSvcCodingParam, and carried with known GOP size, max, input and output frame rate of each spatial
487 * \return NONE (should ensure valid parameter before this procedure)
488 */
DetermineTemporalSettingsTagWelsSvcCodingParam489 int32_t DetermineTemporalSettings() {
490 const int32_t iDecStages = WELS_LOG2 (uiGopSize); // (int8_t)GetLogFactor(1.0f, 1.0f * pcfg->uiGopSize); //log2(uiGopSize)
491 const uint8_t* pTemporalIdList = &g_kuiTemporalIdListTable[iDecStages][0];
492 SSpatialLayerInternal* pDlp = &sDependencyLayers[0];
493 SSpatialLayerConfig* pSpatialLayer = &sSpatialLayers[0];
494 int8_t i = 0;
495
496 while (i < iSpatialLayerNum) {
497 const uint32_t kuiLogFactorInOutRate = GetLogFactor (pDlp->fOutputFrameRate, pDlp->fInputFrameRate);
498 const uint32_t kuiLogFactorMaxInRate = GetLogFactor (pDlp->fInputFrameRate, fMaxFrameRate);
499 if (UINT_MAX == kuiLogFactorInOutRate || UINT_MAX == kuiLogFactorMaxInRate) {
500 return ENC_RETURN_INVALIDINPUT;
501 }
502 int32_t iNotCodedMask = 0;
503 int8_t iMaxTemporalId = 0;
504
505 memset (pDlp->uiCodingIdx2TemporalId, INVALID_TEMPORAL_ID, sizeof (pDlp->uiCodingIdx2TemporalId));
506 iNotCodedMask = (1 << (kuiLogFactorInOutRate + kuiLogFactorMaxInRate)) - 1;
507 for (uint32_t uiFrameIdx = 0; uiFrameIdx <= uiGopSize; ++ uiFrameIdx) {
508 if (0 == (uiFrameIdx & iNotCodedMask)) {
509 const int8_t kiTemporalId = pTemporalIdList[uiFrameIdx];
510 pDlp->uiCodingIdx2TemporalId[uiFrameIdx] = kiTemporalId;
511 if (kiTemporalId > iMaxTemporalId) {
512 iMaxTemporalId = kiTemporalId;
513 }
514 }
515 }
516
517 pDlp->iHighestTemporalId = iMaxTemporalId;
518 pDlp->iTemporalResolution = kuiLogFactorMaxInRate + kuiLogFactorInOutRate;
519 pDlp->iDecompositionStages = iDecStages - kuiLogFactorMaxInRate - kuiLogFactorInOutRate;
520 if (pDlp->iDecompositionStages < 0) {
521 return ENC_RETURN_INVALIDINPUT;
522 }
523 ++ pDlp;
524 ++ pSpatialLayer;
525 ++ i;
526 }
527 iDecompStages = (int8_t)iDecStages;
528 return ENC_RETURN_SUCCESS;
529 }
530
531 } SWelsSvcCodingParam;
532
533
534 typedef struct TagExistingParasetList {
535 SWelsSPS sSps[MAX_SPS_COUNT];
536 SSubsetSps sSubsetSps[MAX_SPS_COUNT];
537 SWelsPPS sPps[MAX_PPS_COUNT];
538
539 uint32_t uiInUseSpsNum;
540 uint32_t uiInUseSubsetSpsNum;
541 uint32_t uiInUsePpsNum;
542 } SExistingParasetList;
543
544
FreeCodingParam(SWelsSvcCodingParam ** pParam,CMemoryAlign * pMa)545 static inline int32_t FreeCodingParam (SWelsSvcCodingParam** pParam, CMemoryAlign* pMa) {
546 if (pParam == NULL || *pParam == NULL || pMa == NULL)
547 return 1;
548 pMa->WelsFree (*pParam, "SWelsSvcCodingParam");
549 *pParam = NULL;
550 return 0;
551 }
552
AllocCodingParam(SWelsSvcCodingParam ** pParam,CMemoryAlign * pMa)553 static inline int32_t AllocCodingParam (SWelsSvcCodingParam** pParam, CMemoryAlign* pMa) {
554 if (pParam == NULL || pMa == NULL)
555 return 1;
556 if (*pParam != NULL) {
557 FreeCodingParam (pParam, pMa);
558 }
559 SWelsSvcCodingParam* pCodingParam = (SWelsSvcCodingParam*)pMa->WelsMallocz (sizeof (SWelsSvcCodingParam),
560 "SWelsSvcCodingParam");
561 if (NULL == pCodingParam)
562 return 1;
563 *pParam = pCodingParam;
564 return 0;
565 }
566
567 }//end of namespace WelsEnc
568
569 #endif//WELS_ENCODER_PARAMETER_SVC_H__
570