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【正文】 20210124 ConstrainedIntraPred When set to 1, only pixels from Intra blocks in the same slice as the current block will be marked as available for Intra prediction. Default is 0 (not used). PCMLog2MinSize Specifies log2 of the minimum PCM block size. PCM mode is available for 2Nx2N intra PUs larger than or equal to the specified minimum PCM block size. Default value is 7 (PCM mode not used). PCMInputBitDepthFlag If enabled specifies that PCM sample bitdepth is set equal to InputBitDepth. Otherwise, it specifies that PCM sample bitdepth is set equal to InternalBitDepth. Default value is 1. PCMFilterDisableFlag If enabled specifies that loopfiltering on reconstructed samples of PCM blocks is skipped. Otherwise, it specifies that loopfiltering on reconstructed samples of PCM blocks is not skipped. Default value is 0 (loopfiltering is not skipped for PCM samples). Miscellaneous parameters FEN Defines use of fast encoder mode. Default is 0 (false). When this option is specified, the following changes apply: ? In the SAD putation for blocks having size larger than 8, only the lines of even rows in the block are considered. ? The number of iterations used in the bidirectional motion vector refinement in the motion estimation process is reduced from 4 to 1. SEIPictureDigest Enable or disable the calculation and insertion of the picture_digest SEI messages. When this parameter is set to 0, the feature is disabled. When set to 1 (default), the feature is enabled and the encoder will write the MD5 of each locally decoded picture to the log using the format: [MD5:d41d8cd98f00b204e9800998ecf8427e]. 5 Hardcoded encoder parameters ADAPT_SR_SCALE Defines a scaling factor used to derive the motion search range is adaptive (see ASR configuration parameter). Default value is 1. TBD Page: 11 Date Saved: 20210124 MAX_PAD_SIZE Defines the multiple to which the size of a source picture is padded when using the PAD configuration parameter. Default value is 16. 6 Using the decoder Decoder syntax TappDecoder –b o [options] Option Description b Defines bit stream file name o Defines reconstructed YUV file name. s Defines the number of pictures in decoding order to skip. Default is 0. d Defines the bit depth of the reconstructed YUV file (a value 0 indicates that the native bit depth is used。 this is also the default value) SEIPictureDigest Enable or disable verification of any picture_digest SEI messages. When this parameter is set to 0, the feature is disabled and all messages are ignored. When set to 1 (default), the feature is enabled and the decoder has the following behaviour: ? For each decoded picture, the MD5 is calculated and written to the log. If the input bitstream has a picture_digest SEI message for the corresponding decoded picture, the two MD5s are pared. Decoding will continue even if there is a mismatch. ? After decoding is plete, if any MD5sum parison failed, a warning is printed and the decoder exits with the status EXIT_FAILURE ? The perpicture MD5 log message has the following formats: [MD5:d41d8cd98f00b204e9800998ecf8427e,(OK)], [MD5:d41d8cd98f00b204e9800998ecf8427e,(unk)], [MD5:d41d8cd98f00b204e9800998ecf8427e,(***ERROR***)] [rxMD5:b9e1...] where, (unk) implies that no MD5 was signalled for this picture, (OK) implies that the decoder agrees with the signalled MD5, (***ERROR***) implies that the decoder disagrees with the signalled MD5. [rxMD5:...] is the signalled MD5 if different. 7 Hardcoded decoder parameters TBD 。 Page: 1 Date Saved: 20210124 Joint Collaborative Team on Video Coding (JCTVC) of ITUT SG16 WP3 and ISO/IEC JTC1/SC29/WG11 6th Meeting: Torino, IT, 1422 July, 2021 Document: JCTVCF634 WG11 Number: m21073 Title: HEVC Reference Software Manual Status: Input Document to JCTVC Purpose: Information Author(s) or Contact(s): Frank Bossen David Flynn Karsten S
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