Custom query (1557 matches)
Results (34 - 36 of 1557)
| Ticket | Resolution | Summary | Owner | Reporter |
|---|---|---|---|---|
| #34 | fixed | intra-fast encoder-side decisions based on possibly incorrect obmc pred buffer | gordon | |
| Description |
Present in jem4.0 rc1. In TEncCu::xCheckRDCostInter obmc is tried 'on', then 'off'. When it's tried 'off' it uses a different prediction buffer that is not saved in rpcTempCU. If this becomes the winning candidate after xCheckBestMode, this "wrong" prediction buffer is used in a later JVET_C0024_PBINTRA_FAST test in xCompressCU. The attached patch seems to correct the problem, but needs to be verified. Compression gain differences on 17-frame RA tests we've done show very small average differences, but with variations up to +/- 0.3% |
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| #35 | wontfix | TransQuantBypass not working | SharpJane | |
| Description |
In all JEM3.2 and even the newly release JM4.0-rc1, TransQuantBypass is not working. Any plan to have it fixed? In SAO, it has comment " currently IPCM mode not support QTBT". But even with SAO disabled. TransQuantBypass is still not working. Code either crash, or has mismatch. |
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| #36 | fixed | Floating-point QP not working | yyasugi | |
| Description |
Version: HM-16.6-JEM-4.0 I noticed encoding failed with floating point QP in most cases. The encoder was terminated by accessing an array with index -1. It would seem that NUM_QP_PROB is not enough and TComStats::aaQPUsed runs out of space during encoding. The issue seems to be fixed by increasing JVET_B0039_INC_NUM_QP_PROB from 7 to 14 as its comment says, but I'm not sure what value is appropriate. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00000000004b5b36 in TEncSbac::loadContextsFromPrev (this=0x7ffe173f3980, apcStats=0x83b8670, eSliceType=B_SLICE, iQPIdx=-1, bFromGloble=false, iQPIdxRst=-1, bAfterLastISlice=false)
#1 0x0000000000456a2e in TEncSlice::encodeSlice (this=0x7ffe173f66e0, pcPic=0x2ba23b668010, pcSubstreams=0x11902a80, numBinsCoded=@0x7ffe173d0680: 0, alfParam=...)
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