Hi,
I use H.264 encoder in live streams transcoding application.
When I compile my project with H.264 encoder of version 01.00.03.00 and run the encoder on 2 and more cores it produces artifacts. Totally the same code doesn't produce artifacts when compiled with previous 01.00.02.00 version.
Output produced by 01.00.03.00 (artifacts): 01.00.03.00.ts.zip
Output produced by 01.00.02.00 (no artifacts): 01.00.02.00.ts.zip
Configuration:
# General entropyCodingMode = 0; # 0: CAVLC, 1: CABAC (for HP and MP only) gopStructure = 0; # 0: NONUNIFORM = IBBPBBP, 1: UNIFORM = BBIBBPBB IDRFrameInterval = 1; # 0: Only first I frame as IDR, 1: All I frames are IDR, 2: 1 out of 2 I frames are IDR starting from first I frame transformBlockSize = 0; # Transform blocks size. 0: 4x4, 1: 8x8 (valid for HP only), 2: adaptive - encoder decides as per content log2MaxFNumMinus4 = 10; # Limits the maximum frame number in the bit-stream to (1<< (log2MaxFNumMinus4 + 4)) Range[0,12] picOrderCountType = 0; # POC type: 0, 1, 2 interlaceCodingType = 4; # 0: PICAFF (not supported), 1: MBAFF (not supported), 2: FIELDONLY_MRF, 3: FIELDONLY_ARF, 4: FIELDONLY_SPF (adaptive) encodingPreset = 3; # 0: DEFAULT, 1: HIGH_QUALITY, 2: HIGH_SPEED, 3: USER_DEFINED. If not USER_DEFINED most of configuration parameters are chosen by encoder, thus ignored. rateControlPreset = 5; # 1: LOW_DELAY, 2: STORAGE, 4: NONE, 5: USER_DEFINED #maxWidth #maxHeight #maxInterFrameInterval = 1; # Max I to P frame distance. 1: no B frames, 2: one B frame, 3: two B frames, etc [1, 255] #maxBitRate = ; # In bits per second. Should be valid as per LEVEL limit minBitRate = 0; # In bits per second profile = 100; # 66: BASELINE, 77: MAIN, 100: HIGH level = 40; # 9: 1b, 10: 1.0, 11: 1.1, 12, 13, 20: 2.0, 21, 22, 30, 31, 32, 40, 41, 42, 50, 51 # Rate control rateControlParamsPreset = 1; # 0: Default, 1: User defined rcAlgo = 0; # Rate control algorithm used, 0: Variable Bitrate, 1 : Constant bitrate (low dealy), 2: Constrained CBR (No Frame Skips). Useful only if rateControlPreset is set to USER_DEFINED qpI = -1; # Initial QP for I/IDR frames, -1 indicates codec chosen qpP = -1; # Initial QP for P frames qpOffsetB = 4; # Offset of B frames QP from P frames qpMaxI = 30; # Maximum QP for I/IDR frames qpMinI = 10; # Minimum QP for I/IDR frames qpMaxP = 40; # Maximum QP for P frames qpMinP = 10; # Minimum QP for P frames qpMaxB = 40; # Maximum QP for B frames qpMinB = 10; # Minimum QP for B frames # For Baseline and Main profiles CbQPIndexOffset and CrQPIndexOffset should be equal CbQPIndexOffset = 0; # Specifies offset to be added to luma QP for addressing QPC values table for Cb components CrQPIndexOffset = 0; # Specifies offset to be added to luma QP for addressing QPC values table for Cr components initialBufferLevel = 4000000; # Initial Buffer level for HRD compliance, keep same as HRDBufferSize for best quality HRDBufferSize = 4000000; # Hypothetical Reference Decoder Buffer Size in bits - 2*bitrate for VBR, 1⁄2*targetBitRate for CBR enablePRC = 1; # Control Flag to enable MB level Perceptual Rate Control, 0 => Disable, 1 => Enable frameSkipAfterSceneChange = 1; # 0=> no forced skip after scenechange, 1 => force skip frame after coding scene change frame. scalingMatrixPreset = 0; # Scaling Matrix selection of encoder avaliable in HP only, 0: no scaling matrices, 1: normal, 2: noisy, 3 : standard default, 4 : user defined # Inter coding interCodingPreset = 1; # Inter coding mode preset, 0 => deafult values, 1 => user defined MvRangeVerP = 32; # Vertical Motion Vector Range for P frames in integer pixels, Range supported is 16 to 496 MvRangeHorP = 144; # Horizontal Motion Vector Range for P frames in integer pixels, Range supported is 16 to 496 MvRangeVerB = 32; # Vertical Motion Vector Range for B frames in integer pixels, Range supported is 16 to 496 MvRangeHorB = 144; # Horizontal Motion Vector Range for B frames in integer pixels, Range supported is 16 to 496 maxMVperMB = 4; # Maximum MV per MB (Values of 1 & 4 are valid) # Intra coding intraCodingPreset = 1; # Intra coding mode preset, 0 => deafult values, 1 => user defined enableIntraPartition = 1; # 0 => INTRA_PARTITION_NONE , 1 => INTRA_PARTITION_ISLICES, 2 => INTRA_PARTITION_IPSLICES, 3 => INTRA_PARTITION_IBSLICES, 4 => INTRA_PARTITION_IPBSLICES. intraRefreshMethod = 1; # IH264_INTRAREFRESH_NONE = 0, IH264_INTRAREFRESH_CYCLIC_MBS = 1 intraRefreshRate = 0; # Rate at which intra MB Refresh is done. e.g. 10 indicates every 10th MB will coded as Intra in inter pictures. constrainedIntraPredEnable = 0; # Controls the intra macroblock coding in inter slices # Slice coding sliceCodingPreset = 0; # Preset value for slice coding mode, 0 => deafult values, 1 => user defined streamFormat = 0; # Type of bitstream to be encoded. Only value 0 is supprted (Byte stream format) sliceMode = 0; # Type of slice coding, 0 => slice coding mode is frame based, 1 => Slices are controlled based upon number of Macroblocks sliceUnitSize = 0; # Number of macroblocks per slice # Loop filter loopfilterPreset = 1; # Preset value for loop filter operation parameters, 0 => default values, 1 => user defined loopfilterDisableIDC = 2; # Disable H.264 loop filter, (0=Filter, 1= NoFilter, 2 = No loop filter across slices) filterOffsetA = 0; # Alpha offset for loop filter filterOffsetB = 0; # Beta offset for loop filter # VUI coding vuiCodingPreset = 1; # Preset value for VUI Control Params, 0 => deafult values, 1 => user defined aspectRatioInfoPresentFlag = 1; # Controls the insertion of aspect ratio information in VUI part of bit-stream aspectRatioIdc = 255; # Aspect ratio ID. See IH264HPVENC_AspectRatioIdc. IH264HP_ASPECTRATIO_EXTENDED = 255 for dynamic aspect ratio. videoSignalTypePresentFlag = 0; # controls the insertion of video signal type in VUI part of bit-stream videoFormat = 2; # Video signal type, 0: Component, 1: PAL, 2: NTSC, 3: SECAM, 4: MAC, 5: Unspecified videoFullRangeFlag = 0; # Flag to specify Range of the pixels colourDescriptionPresentFlag = 1; # Specifies whether colour_primaries, transfer_characteristics and matrix_coefficients are present or not. colourPrimaries = 5; # chromaticity coordinates of the source primaries(Table E-3 in standard) transferCharacteristics = 5; # opto-electronic transfer characteristic of the source picture(Table E-4 in standard) matrixCoefficients = 5; # matrix coefficients used in deriving Y,Cb,Cr signals from the G,B,R primaries(Table E-5 in standard) timingInfoPresentFlag = 1; # Controls the insertion of timing info related parameters in VUI part of bit-stream # Dynamic intraFrameInterval = 6; # The number of frames between two I frames. 0: IPPPP..., 1: IIII..., 2: IPIPIPIPI, 3: IPPIPPIPPI or IPBIPBIPBI, etc. mvAccuracy = 0; # Motion vectors accuracy. 0: integer pel., 2: quarter pel. #sampleAspectRatioWidth #sampleAspectRatioHeight bitRate = 2000000; interFrameInterval = 1; # Max I to P frame distance. 1: no B frames, 2: one B frame, 3: two B frames, etc [1, 255]
P.S.
I do Cache_wbInvAll() before and after process call on all the cores.
Regards,
Andrey Lisnevich
