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add level limits

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This commit is contained in:
Licai Guo 2014-01-22 18:35:50 -08:00
parent 9efbef67b9
commit 9a875532fd
2 changed files with 84 additions and 4 deletions
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13
codec/decoder/core/inc/parameter_sets.h
View File

@ -39,6 +39,18 @@
namespace WelsDec {
typedef struct TagLevelLimits {
int32_t iMaxMBPS; // Max macroblock processing rate(MB/s)
int32_t iMaxFS; // Max frame sizea(MBs)
int32_t iMaxDPBMbs;// Max decoded picture buffer size(MBs)
int32_t iMaxBR; // Max video bit rate
int32_t iMaxCPB; // Max CPB size
int16_t iMinVmv; // Vertical MV component range upper bound
int16_t iMaxVmv; // Vertical MV component range lower bound
int16_t iMinCR; // Min compression ration
int16_t iMaxMvsPer2Mb; // Max number of motion vectors per two consecutive MBs
} SLevelLimits;
/* Sequence Parameter Set, refer to Page 57 in JVT X201wcm */
typedef struct TagSps {
int32_t iSpsId;
@ -87,6 +99,7 @@ bool_t bSeparateColorPlaneFlag;
bool_t bQpPrimeYZeroTransfBypassFlag;
bool_t bSeqScalingMatrixPresentFlag;
bool_t bSeqScalingListPresentFlag[12];
const SLevelLimits *pSLevelLimits;
} SSps, *PSps;

75
codec/decoder/core/src/au_parser.cpp
View File

@ -479,8 +479,7 @@ int32_t ParseNonVclNal (PWelsDecoderContext pCtx, uint8_t* pRbsp, const int32_t
int32_t iPicHeight = 0;
int32_t iBitSize = 0;
int32_t iErr = ERR_NONE;
if (kiSrcLen <= 0)
return iErr;
pBs = &pCtx->sBs; // SBitStringAux instance for non VCL NALs decoding
iBitSize = (kiSrcLen << 3) - BsGetTrailingBits (pRbsp + kiSrcLen - 1); // convert into bit
eNalType = pCtx->sCurNalHead.eNalUnitType;
@ -629,6 +628,69 @@ int32_t DecodeSpsSvcExt (PWelsDecoderContext pCtx, PSubsetSps pSpsExt, PBitStrin
return 0;
}
// table A-1 - Level limits
static const SLevelLimits g_kSLevelLimits[17] = {
{1485, 99, 396, 64, 175, -256, 255, 2, 0x7fff}, /* level 1 */
{1485, 99, 396, 128, 350, -256, 255, 2, 0x7fff}, /* level 1.b */
{3000, 396, 900, 192, 500, -512, 511, 2, 0x7fff}, /* level 1.1 */
{6000, 396, 2376, 384, 1000, -512, 511, 2, 0x7fff}, /* level 1.2 */
{11880, 396, 2376, 768, 2000, -512, 511, 2, 0x7fff}, /* level 1.3 */
{11880, 396, 2376, 2000, 2000, -512, 511, 2, 0x7fff}, /* level 2 */
{19800, 792, 4752, 4000, 4000, -1024, 1023, 2, 0x7fff}, /* level 2.1 */
{20250, 1620, 8100, 4000, 4000, -1024, 1023, 2, 0x7fff}, /* level 2.2 */
{40500, 1620, 8100, 10000, 10000, -1024, 1023, 2, 32 }, /* level 3 */
{108000, 3600, 18000, 14000, 14000, -2048, 2047, 4, 16}, /* level 3.1 */
{216000, 5120, 20480, 20000, 20000, -2048, 2047, 4, 16}, /* level 3.2 */
{245760, 8192, 32768, 20000, 25000, -2048, 2047, 4, 16}, /* level 4 */
{245760, 8192, 32768, 50000, 62500, -2048, 2047, 2, 16}, /* level 4.1 */
{522240, 8704, 34816, 50000, 62500, -2048, 2047, 2, 16}, /* level 4.2 */
{589824, 22080, 110400, 135000, 135000, -2048, 2047, 2, 16}, /* level 5 */
{983040, 36864, 184320, 240000, 240000, -2048, 2047, 2, 16}, /* level 5.1 */
{2073600, 36864, 184320, 240000, 240000, -2048, 2047, 2, 16} /* level 5.2 */
};
const SLevelLimits *GetLevelLimits(int32_t iLevelIdx, bool_t bConstraint3) {
switch (iLevelIdx) {
case 10:
return &g_kSLevelLimits[0];
case 11:
if(bConstraint3)
return &g_kSLevelLimits[1];
else
return &g_kSLevelLimits[2];
case 12:
return &g_kSLevelLimits[3];
case 13:
return &g_kSLevelLimits[4];
case 20:
return &g_kSLevelLimits[5];
case 21:
return &g_kSLevelLimits[6];
case 22:
return &g_kSLevelLimits[7];
case 30:
return &g_kSLevelLimits[8];
case 31:
return &g_kSLevelLimits[9];
case 32:
return &g_kSLevelLimits[10];
case 40:
return &g_kSLevelLimits[11];
case 41:
return &g_kSLevelLimits[12];
case 42:
return &g_kSLevelLimits[13];
case 50:
return &g_kSLevelLimits[14];
case 51:
return &g_kSLevelLimits[15];
case 52:
return &g_kSLevelLimits[16];
default:
return NULL;
}
return NULL;
}
/*!
*************************************************************************************
* \brief to parse Sequence Parameter Set (SPS)
@ -685,7 +747,7 @@ int32_t ParseSps (PWelsDecoderContext pCtx, PBitStringAux pBsAux, int32_t* pPicW
bConstraintSetFlags[5] = !!BsGetOneBit (pBs); // constraint_set5_flag
BsGetBits (pBs, 2); // reserved_zero_2bits, equal to 0
uiLevelIdc = BsGetBits (pBs, 8); // level_idc
iSpsId = BsGetUe (pBs); // seq_parameter_set_id
@ -719,7 +781,12 @@ int32_t ParseSps (PWelsDecoderContext pCtx, PBitStringAux pBsAux, int32_t* pPicW
pCtx->bSpsAvailFlags[iSpsId] = true; // added for EC, 10/28/2009
#endif //MOSAIC_AVOID_BASED_ON_SPS_PPS_ID
}
const SLevelLimits *pSLevelLimits = GetLevelLimits(uiLevelIdc, bConstraintSetFlags[3]);
if (NULL == pSLevelLimits) {
WelsLog (pCtx, WELS_LOG_WARNING, "ParseSps(): level_idx (%d).\n", uiLevelIdc);
return GENERATE_ERROR_NO (ERR_LEVEL_PARAM_SETS, ERR_INFO_UNSUPPORTED_NON_BASELINE);
}
else pSps->pSLevelLimits = pSLevelLimits;
// syntax elements in default
pSps->uiChromaFormatIdc = 1;
pSps->uiBitDepthLuma =