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| 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 | + * welsDecoderExt.cpp |
| 33 | + * |
| 34 | + * Abstract |
| 35 | + * Cisco OpenH264 decoder extension utilization |
| 36 | + * |
| 37 | + * History |
| 38 | + * 3/12/2009 Created |
| 39 | + * |
| 40 | + * |
| 41 | + ************************************************************************/ |
| 42 | +//#include <assert.h> |
| 43 | +#include "welsDecoderExt.h" |
| 44 | +#include "welsCodecTrace.h" |
| 45 | +#include "codec_def.h" |
| 46 | +#include "typedefs.h" |
| 47 | +#include "mem_align.h" |
| 48 | +#include "utils.h" |
| 49 | + |
| 50 | +//#include "macros.h" |
| 51 | +#include "decoder.h" |
| 52 | + |
| 53 | +extern "C" { |
| 54 | +#include "decoder_core.h" |
| 55 | +#include "manage_dec_ref.h" |
| 56 | +} |
| 57 | +#include "error_code.h" |
| 58 | +#include "crt_util_safe_x.h" // Safe CRT routines like util for cross platforms |
| 59 | +#include <time.h> |
| 60 | +#if defined(WIN32) /*&& defined(_DEBUG)*/ |
| 61 | + |
| 62 | +#include <windows.h> |
| 63 | +#include <stdio.h> |
| 64 | +#include <stdarg.h> |
| 65 | +#include <sys/types.h> |
| 66 | +#include <sys/timeb.h> |
| 67 | +#else |
| 68 | +#include <sys/time.h> |
| 69 | +#endif |
| 70 | + |
| 71 | +namespace WelsDec { |
| 72 | + |
| 73 | +////////////////////////////////////////////////////////////////////// |
| 74 | +// Construction/Destruction |
| 75 | +////////////////////////////////////////////////////////////////////// |
| 76 | + |
| 77 | +/*************************************************************************** |
| 78 | +* Description: |
| 79 | +* class CWelsDecoder constructor function, do initialization and |
| 80 | +* alloc memory required |
| 81 | +* |
| 82 | +* Input parameters: none |
| 83 | +* |
| 84 | +* return: none |
| 85 | +/***************************************************************************/ |
| 86 | +CWelsDecoder::CWelsDecoder(void_t) |
| 87 | +: m_pDecContext( NULL ), |
| 88 | + m_pTrace( NULL ) |
| 89 | +{ |
| 90 | +#ifdef OUTPUT_BIT_STREAM |
| 91 | + str_t chFileName[1024] = { 0 }; //for .264 |
| 92 | + int iBufUsed = 0; |
| 93 | + int iBufLeft = 1023; |
| 94 | + |
| 95 | + str_t chFileNameSize[1024] = { 0 }; //for .len |
| 96 | + int iBufUsedSize = 0; |
| 97 | + int iBufLeftSize = 1023; |
| 98 | +#endif//OUTPUT_BIT_STREAM |
| 99 | + |
| 100 | + m_pTrace = CreateWelsTrace(Wels_Trace_Type); |
| 101 | + |
| 102 | + IWelsTrace::WelsVTrace(m_pTrace, IWelsTrace::WELS_LOG_INFO,"CWelsDecoder::CWelsDecoder() entry"); |
| 103 | + |
| 104 | + |
| 105 | +#ifdef OUTPUT_BIT_STREAM |
| 106 | + SWelsTime sCurTime; |
| 107 | + |
| 108 | + WelsGetTimeOfDay(&sCurTime); |
| 109 | + |
| 110 | + iBufUsed += WelsSnprintf(chFileName, iBufLeft, "bs_0x%p_", (void_t*)this); |
| 111 | + iBufUsedSize += WelsSnprintf(chFileNameSize, iBufLeftSize, "size_0x%p_", (void_t*)this); |
| 112 | + |
| 113 | + iBufLeft -= iBufUsed; |
| 114 | + if ( iBufLeft > iBufUsed ) |
| 115 | + { |
| 116 | + iBufUsed += WelsStrftime(&chFileName[iBufUsed], iBufLeft, "%y%m%d%H%M%S", &sCurTime); |
| 117 | + iBufLeft -= iBufUsed; |
| 118 | + } |
| 119 | + |
| 120 | + iBufLeftSize -= iBufUsedSize; |
| 121 | + if ( iBufLeftSize> iBufUsedSize ) |
| 122 | + { |
| 123 | + iBufUsedSize += WelsStrftime(&chFileNameSize[iBufUsedSize], iBufLeftSize, "%y%m%d%H%M%S", &sCurTime); |
| 124 | + iBufLeftSize -= iBufUsedSize; |
| 125 | + } |
| 126 | + |
| 127 | + if ( iBufLeft > iBufUsed ) |
| 128 | + { |
| 129 | + iBufUsed += WelsSnprintf(&chFileName[iBufUsed], iBufLeft, ".%03.3u.264", WelsGetMillsecond(&sCurTime)); |
| 130 | + iBufLeft -= iBufUsed; |
| 131 | + } |
| 132 | + |
| 133 | + if ( iBufLeftSize > iBufUsedSize ) |
| 134 | + { |
| 135 | + iBufUsedSize += WelsSnprintf(&chFileNameSize[iBufUsedSize], iBufLeftSize, ".%03.3u.len", WelsGetMillsecond(&sCurTime)); |
| 136 | + iBufLeftSize -= iBufUsedSize; |
| 137 | + } |
| 138 | + |
| 139 | + |
| 140 | + m_pFBS = WelsFopen(chFileName, "wb"); |
| 141 | + m_pFBSSize = WelsFopen(chFileNameSize, "wb"); |
| 142 | +#endif//OUTPUT_BIT_STREAM |
| 143 | + |
| 144 | +} |
| 145 | + |
| 146 | +/*************************************************************************** |
| 147 | +* Description: |
| 148 | +* class CWelsDecoder destructor function, destroy allocced memory |
| 149 | +* |
| 150 | +* Input parameters: none |
| 151 | +* |
| 152 | +* return: none |
| 153 | +/***************************************************************************/ |
| 154 | +CWelsDecoder::~CWelsDecoder() |
| 155 | +{ |
| 156 | + IWelsTrace::WelsVTrace(m_pTrace, IWelsTrace::WELS_LOG_INFO, "CWelsDecoder::~CWelsDecoder()"); |
| 157 | + |
| 158 | + UninitDecoder(); |
| 159 | + |
| 160 | +#ifdef OUTPUT_BIT_STREAM |
| 161 | + if ( m_pFBS ) |
| 162 | + { |
| 163 | + WelsFclose( m_pFBS ); |
| 164 | + m_pFBS = NULL; |
| 165 | + } |
| 166 | + if ( m_pFBSSize ) |
| 167 | + { |
| 168 | + WelsFclose( m_pFBSSize ); |
| 169 | + m_pFBSSize = NULL; |
| 170 | + } |
| 171 | +#endif//OUTPUT_BIT_STREAM |
| 172 | + |
| 173 | + if( NULL != m_pTrace ){ |
| 174 | + delete m_pTrace; |
| 175 | + m_pTrace = NULL; |
| 176 | + } |
| 177 | +} |
| 178 | + |
| 179 | +long CWelsDecoder::Initialize(void_t* pParam, const INIT_TYPE keInitType) |
| 180 | +{ |
| 181 | + if ( pParam == NULL || keInitType != INIT_TYPE_PARAMETER_BASED ){ |
| 182 | + IWelsTrace::WelsVTrace(m_pTrace, IWelsTrace::WELS_LOG_INFO, "CWelsDecoder::Initialize(), invalid input argument."); |
| 183 | + return cmInitParaError; |
| 184 | + } |
| 185 | + |
| 186 | + // H.264 decoder initialization,including memory allocation,then open it ready to decode |
| 187 | + InitDecoder(); |
| 188 | + |
| 189 | + DecoderConfigParam( m_pDecContext, pParam ); |
| 190 | + |
| 191 | + return cmResultSuccess; |
| 192 | +} |
| 193 | + |
| 194 | +long CWelsDecoder::Unintialize() |
| 195 | +{ |
| 196 | + UninitDecoder(); |
| 197 | + |
| 198 | + return ERR_NONE; |
| 199 | +} |
| 200 | + |
| 201 | +void_t CWelsDecoder::UninitDecoder( void_t ) |
| 202 | +{ |
| 203 | + if ( NULL == m_pDecContext ) |
| 204 | + return; |
| 205 | + |
| 206 | + IWelsTrace::WelsVTrace(m_pTrace, IWelsTrace::WELS_LOG_INFO, "into CWelsDecoder::uninit_decoder().."); |
| 207 | + |
| 208 | + WelsEndDecoder( m_pDecContext ); |
| 209 | + |
| 210 | + if ( NULL != m_pDecContext ) |
| 211 | + { |
| 212 | + WelsFree( m_pDecContext, "m_pDecContext" ); |
| 213 | + |
| 214 | + m_pDecContext = NULL; |
| 215 | + } |
| 216 | + |
| 217 | + IWelsTrace::WelsVTrace(m_pTrace, IWelsTrace::WELS_LOG_INFO, "left CWelsDecoder::uninit_decoder().."); |
| 218 | +} |
| 219 | + |
| 220 | +// the return value of this function is not suitable, it need report failure info to upper layer. |
| 221 | +void_t CWelsDecoder::InitDecoder( void_t ) |
| 222 | +{ |
| 223 | + IWelsTrace::WelsVTrace(m_pTrace, IWelsTrace::WELS_LOG_INFO, "CWelsDecoder::init_decoder().."); |
| 224 | + |
| 225 | + m_pDecContext = (PWelsDecoderContext)WelsMalloc( sizeof(SWelsDecoderContext), "m_pDecContext" ); |
| 226 | + |
| 227 | + WelsInitDecoder( m_pDecContext, m_pTrace, IWelsTrace::WelsTrace ); |
| 228 | + |
| 229 | + IWelsTrace::WelsVTrace(m_pTrace, IWelsTrace::WELS_LOG_INFO, "CWelsDecoder::init_decoder().. left"); |
| 230 | +} |
| 231 | + |
| 232 | +/* |
| 233 | + * Set Option |
| 234 | + */ |
| 235 | +long CWelsDecoder::SetOption(DECODER_OPTION eOptID, void_t* pOption) |
| 236 | +{ |
| 237 | + int iVal = 0; |
| 238 | + |
| 239 | + if ( m_pDecContext == NULL ) |
| 240 | + return dsInitialOptExpected; |
| 241 | + |
| 242 | + if ( eOptID == DECODER_OPTION_DATAFORMAT ) // Set color space of decoding output frame |
| 243 | + { |
| 244 | + if ( pOption == NULL ) |
| 245 | + return cmInitParaError; |
| 246 | + |
| 247 | + iVal = *((int*)pOption); // is_rgb |
| 248 | + |
| 249 | + return DecoderSetCsp( m_pDecContext, iVal ); |
| 250 | + } |
| 251 | + else if ( eOptID == DECODER_OPTION_END_OF_STREAM ) // Indicate bit-stream of the final frame to be decoded |
| 252 | + { |
| 253 | + if ( pOption == NULL ) |
| 254 | + return cmInitParaError; |
| 255 | + |
| 256 | + iVal = *((int*)pOption); // boolean value for whether enabled End Of Stream flag |
| 257 | + |
| 258 | + m_pDecContext->bEndOfStreamFlag = iVal ? true : false; |
| 259 | + |
| 260 | + return cmResultSuccess; |
| 261 | + } |
| 262 | + else if ( eOptID == DECODER_OPTION_MODE) |
| 263 | + { |
| 264 | + if ( pOption == NULL ) |
| 265 | + return cmInitParaError; |
| 266 | + |
| 267 | + iVal = *((int *)pOption); |
| 268 | + |
| 269 | + m_pDecContext->iSetMode = iVal; |
| 270 | + if(iVal == SW_MODE) |
| 271 | + { |
| 272 | + m_pDecContext->iDecoderOutputProperty = BUFFER_HOST; |
| 273 | + } |
| 274 | + else |
| 275 | + { |
| 276 | +#if !defined(__APPLE__) |
| 277 | + m_pDecContext->iDecoderOutputProperty = BUFFER_DEVICE; |
| 278 | +#else |
| 279 | + m_pDecContext->iDecoderOutputProperty = BUFFER_HOST;//BUFFER_HOST;//BUFFER_DEVICE; |
| 280 | +#endif |
| 281 | + |
| 282 | + } |
| 283 | + |
| 284 | + return cmResultSuccess; |
| 285 | + } |
| 286 | + else if ( eOptID == DECODER_OPTION_OUTPUT_PROPERTY) |
| 287 | + { |
| 288 | + if ( pOption == NULL) |
| 289 | + return cmInitParaError; |
| 290 | + |
| 291 | + iVal = *((int *)pOption); |
| 292 | + if( m_pDecContext->iSetMode != SW_MODE) |
| 293 | + m_pDecContext->iDecoderOutputProperty = iVal; |
| 294 | + } |
| 295 | + |
| 296 | + |
| 297 | + return cmInitParaError; |
| 298 | +} |
| 299 | + |
| 300 | +/* |
| 301 | + * Get Option |
| 302 | + */ |
| 303 | +long CWelsDecoder::GetOption(DECODER_OPTION eOptID, void_t* pOption) |
| 304 | +{ |
| 305 | + int iVal = 0; |
| 306 | + |
| 307 | + if ( m_pDecContext == NULL ) |
| 308 | + return cmInitExpected; |
| 309 | + |
| 310 | + if ( pOption == NULL ) |
| 311 | + return cmInitParaError; |
| 312 | + |
| 313 | + if ( DECODER_OPTION_DATAFORMAT == eOptID ){ |
| 314 | + iVal = m_pDecContext->iOutputColorFormat; |
| 315 | + *((int*)pOption) = iVal; |
| 316 | + return cmResultSuccess; |
| 317 | + } |
| 318 | + else if ( DECODER_OPTION_END_OF_STREAM == eOptID ){ |
| 319 | + iVal = m_pDecContext->bEndOfStreamFlag; |
| 320 | + *((int*)pOption) = iVal; |
| 321 | + return cmResultSuccess; |
| 322 | + } |
| 323 | +#ifdef LONG_TERM_REF |
| 324 | + else if ( DECODER_OPTION_IDR_PIC_ID == eOptID ){ |
| 325 | + iVal = m_pDecContext->uiCurIdrPicId; |
| 326 | + *((int*)pOption) = iVal; |
| 327 | + return cmResultSuccess; |
| 328 | + } |
| 329 | + else if ( DECODER_OPTION_FRAME_NUM == eOptID) |
| 330 | + { |
| 331 | + iVal = m_pDecContext->iFrameNum; |
| 332 | + *((int*)pOption) = iVal; |
| 333 | + return cmResultSuccess; |
| 334 | + } |
| 335 | + else if ( DECODER_OPTION_LTR_MARKING_FLAG == eOptID ) |
| 336 | + { |
| 337 | + iVal = m_pDecContext->bCurAuContainLtrMarkSeFlag; |
| 338 | + *((int*)pOption) = iVal; |
| 339 | + return cmResultSuccess; |
| 340 | + } |
| 341 | + else if ( DECODER_OPTION_LTR_MARKED_FRAME_NUM == eOptID ) |
| 342 | + { |
| 343 | + iVal = m_pDecContext->iFrameNumOfAuMarkedLtr; |
| 344 | + *((int*)pOption) = iVal; |
| 345 | + return cmResultSuccess; |
| 346 | + } |
| 347 | +#endif |
| 348 | + else if ( DECODER_OPTION_VCL_NAL == eOptID ) //feedback whether or not have VCL NAL in current AU |
| 349 | + { |
| 350 | + iVal = m_pDecContext->iFeedbackVclNalInAu; |
| 351 | + *((int*)pOption) = iVal; |
| 352 | + return cmResultSuccess; |
| 353 | + } |
| 354 | + else if ( DECODER_OPTION_TEMPORAL_ID == eOptID ) //if have VCL NAL in current AU, then feedback the temporal ID |
| 355 | + { |
| 356 | + iVal = m_pDecContext->iFeedbackTidInAu; |
| 357 | + *((int*)pOption) = iVal; |
| 358 | + return cmResultSuccess; |
| 359 | + } |
| 360 | + else if ( DECODER_OPTION_MODE == eOptID ) |
| 361 | + { |
| 362 | + if ( pOption == NULL ) |
| 363 | + return cmInitParaError; |
| 364 | + |
| 365 | + iVal = m_pDecContext->iSetMode; |
| 366 | + |
| 367 | + *((int *)pOption) = iVal; |
| 368 | + return cmResultSuccess; |
| 369 | + } |
| 370 | + else if ( DECODER_OPTION_DEVICE_INFO == eOptID ) |
| 371 | + { |
| 372 | + if ( pOption == NULL ) |
| 373 | + return cmInitParaError; |
| 374 | + |
| 375 | + return cmResultSuccess; |
| 376 | + } |
| 377 | + |
| 378 | + return cmInitParaError; |
| 379 | +} |
| 380 | + |
| 381 | +DECODING_STATE CWelsDecoder::DecodeFrame( const unsigned char* kpSrc, |
| 382 | + const int kiSrcLen, |
| 383 | + void_t ** ppDst, |
| 384 | + SBufferInfo* pDstInfo) |
| 385 | +{ |
| 386 | + if ( kiSrcLen > 0 && kpSrc != NULL ) |
| 387 | + { |
| 388 | +#ifdef OUTPUT_BIT_STREAM |
| 389 | + if ( m_pFBS ) |
| 390 | + { |
| 391 | + WelsFwrite( kpSrc, sizeof(unsigned char), kiSrcLen, m_pFBS ); |
| 392 | + WelsFflush( m_pFBS ); |
| 393 | + } |
| 394 | + if ( m_pFBSSize ) |
| 395 | + { |
| 396 | + WelsFwrite( &kiSrcLen, sizeof(int), 1, m_pFBSSize ); |
| 397 | + WelsFflush( m_pFBSSize ); |
| 398 | + } |
| 399 | +#endif//OUTPUT_BIT_STREAM |
| 400 | + m_pDecContext->bEndOfStreamFlag = false; |
| 401 | + } |
| 402 | + else |
| 403 | + { //For application MODE, the error detection should be added for safe. |
| 404 | + //But for CONSOLE MODE, when decoding LAST AU, kiSrcLen==0 && kpSrc==NULL. |
| 405 | + m_pDecContext->bEndOfStreamFlag = true; |
| 406 | + } |
| 407 | + |
| 408 | + ppDst[0] = ppDst[1] = ppDst[2] = NULL; |
| 409 | + m_pDecContext->iErrorCode = dsErrorFree; //initialize at the starting of AU decoding. |
| 410 | + m_pDecContext->iFeedbackVclNalInAu = FEEDBACK_UNKNOWN_NAL; //initialize |
| 411 | + memset(pDstInfo,0,sizeof(SBufferInfo)); |
| 412 | + pDstInfo->eBufferProperty = (EBufferProperty)m_pDecContext->iDecoderOutputProperty; |
| 413 | + |
| 414 | +#ifdef LONG_TERM_REF |
| 415 | + m_pDecContext->bReferenceLostAtT0Flag = false; //initialize for LTR |
| 416 | + m_pDecContext->bCurAuContainLtrMarkSeFlag = false; |
| 417 | + m_pDecContext->iFrameNumOfAuMarkedLtr = 0; |
| 418 | + m_pDecContext->iFrameNum = -1; //initialize |
| 419 | +#endif |
| 420 | + |
| 421 | + m_pDecContext->iFeedbackTidInAu = -1; //initialize |
| 422 | + |
| 423 | + WelsDecodeBs( m_pDecContext, kpSrc, kiSrcLen, (unsigned char**)ppDst, pDstInfo); //iErrorCode has been modified in this function |
| 424 | + |
| 425 | + pDstInfo->eWorkMode = (EDecodeMode)m_pDecContext->iDecoderMode; |
| 426 | + |
| 427 | + if ( m_pDecContext->iErrorCode ) |
| 428 | + { |
| 429 | + ENalUnitType eNalType = NAL_UNIT_UNSPEC_0; //for NBR, IDR frames are expected to decode as followed if error decoding an IDR currently |
| 430 | + |
| 431 | + eNalType = m_pDecContext->sCurNalHead.eNalUnitType; |
| 432 | + |
| 433 | + //for AVC bitstream (excluding AVC with temporal scalability, including TP), as long as error occur, SHOULD notify upper layer key frame loss. |
| 434 | + if ( (IS_PARAM_SETS_NALS(eNalType) || NAL_UNIT_CODED_SLICE_IDR == eNalType) || |
| 435 | + (VIDEO_BITSTREAM_AVC == m_pDecContext->eVideoType) ) |
| 436 | + { |
| 437 | +#ifdef LONG_TERM_REF |
| 438 | + m_pDecContext->bParamSetsLostFlag = true; |
| 439 | +#else |
| 440 | + m_pDecContext->bReferenceLostAtT0Flag = true; |
| 441 | +#endif |
| 442 | + ResetParameterSetsState( m_pDecContext ); //initial SPS&PPS ready flag |
| 443 | + } |
| 444 | + |
| 445 | + IWelsTrace::WelsVTrace(m_pTrace, IWelsTrace::WELS_LOG_INFO, "decode failed, failure type:%d \n", m_pDecContext->iErrorCode); |
| 446 | + return (DECODING_STATE)m_pDecContext->iErrorCode; |
| 447 | + } |
| 448 | + |
| 449 | + return dsErrorFree; |
| 450 | +} |
| 451 | + |
| 452 | +DECODING_STATE CWelsDecoder::DecodeFrame( const unsigned char* kpSrc, |
| 453 | + const int kiSrcLen, |
| 454 | + unsigned char** ppDst, |
| 455 | + int* pStride, |
| 456 | + int& iWidth, |
| 457 | + int& iHeight ) |
| 458 | +{ |
| 459 | + DECODING_STATE eDecState = dsErrorFree; |
| 460 | + SBufferInfo DstInfo; |
| 461 | + |
| 462 | + memset(&DstInfo, 0, sizeof(SBufferInfo)); |
| 463 | + DstInfo.UsrData.sSystemBuffer.iStride[0] = pStride[0]; |
| 464 | + DstInfo.UsrData.sSystemBuffer.iStride[1] = pStride[1]; |
| 465 | + DstInfo.UsrData.sSystemBuffer.iWidth = iWidth; |
| 466 | + DstInfo.UsrData.sSystemBuffer.iHeight = iHeight; |
| 467 | + DstInfo.eBufferProperty = BUFFER_HOST; |
| 468 | + |
| 469 | + eDecState = DecodeFrame(kpSrc, kiSrcLen, (void_t **)ppDst, &DstInfo); |
| 470 | + if (eDecState == dsErrorFree) |
| 471 | + { |
| 472 | + pStride[0] = DstInfo.UsrData.sSystemBuffer.iStride[0]; |
| 473 | + pStride[1] = DstInfo.UsrData.sSystemBuffer.iStride[1]; |
| 474 | + iWidth = DstInfo.UsrData.sSystemBuffer.iWidth; |
| 475 | + iHeight = DstInfo.UsrData.sSystemBuffer.iHeight; |
| 476 | + } |
| 477 | + |
| 478 | + return eDecState; |
| 479 | +} |
| 480 | + |
| 481 | +DECODING_STATE CWelsDecoder::DecodeFrameEx(const unsigned char * kpSrc, |
| 482 | + const int kiSrcLen, |
| 483 | + unsigned char * pDst, |
| 484 | + int iDstStride, |
| 485 | + int & iDstLen, |
| 486 | + int & iWidth, |
| 487 | + int & iHeight, |
| 488 | + int & iColorFormat ) |
| 489 | +{ |
| 490 | + DECODING_STATE state = dsErrorFree; |
| 491 | + |
| 492 | + return state; |
| 493 | +} |
| 494 | + |
| 495 | + |
| 496 | +} // namespace WelsDec |
| 497 | + |
| 498 | + |
| 499 | +using namespace WelsDec; |
| 500 | + |
| 501 | +/* WINAPI is indeed in prefix due to sync to application layer callings!! */ |
| 502 | + |
| 503 | +/* |
| 504 | +* CreateDecoder |
| 505 | +* @return: success in return 0, otherwise failed. |
| 506 | +*/ |
| 507 | +long CreateDecoder( ISVCDecoder** ppDecoder ) |
| 508 | +{ |
| 509 | + |
| 510 | + if ( NULL == ppDecoder ){ |
| 511 | + return ERR_INVALID_PARAMETERS; |
| 512 | + } |
| 513 | + |
| 514 | + *ppDecoder = new CWelsDecoder(); |
| 515 | + |
| 516 | + if ( NULL == *ppDecoder ){ |
| 517 | + return ERR_MALLOC_FAILED; |
| 518 | + } |
| 519 | + |
| 520 | + return ERR_NONE; |
| 521 | +} |
| 522 | + |
| 523 | +/* |
| 524 | +* DestroyDecoder |
| 525 | +*/ |
| 526 | +void_t DestroyDecoder( ISVCDecoder* pDecoder ) |
| 527 | +{ |
| 528 | + if ( NULL != pDecoder ){ |
| 529 | + delete (CWelsDecoder *)pDecoder; |
| 530 | + pDecoder = NULL; |
| 531 | + } |
| 532 | +} |