[BUG] x265 psyrd default value

[Selur]

I did read the Preset Option page before I submit this issue, and I thought maybe they just didn't list all the detail parameters in that page? since

Looking at the source code:

if (preset)
    {
        char *end;
        int i = strtol(preset, &end, 10);
        if (*end == 0 && i >= 0 && i < (int)(sizeof(x265_preset_names) / sizeof(*x265_preset_names) - 1))
            preset = x265_preset_names[i];

        if (!strcmp(preset, "ultrafast"))
        {
            param->lookaheadDepth = 5;
            param->scenecutThreshold = 0; // disable lookahead
            param->maxCUSize = 32;
            param->minCUSize = 16;
            param->bframes = 3;
            param->bFrameAdaptive = 0;
            param->subpelRefine = 0;
            param->searchMethod = X265_DIA_SEARCH;
            param->bEnableEarlySkip = 1;
            param->bEnableSAO = 0;
            param->bEnableSignHiding = 0;
            param->bEnableWeightedPred = 0;
            param->rdLevel = 2;
            param->maxNumReferences = 1;
            param->limitReferences = 0;
            param->rc.aqStrength = 0.0;
            param->rc.aqMode = X265_AQ_NONE;
            param->rc.qgSize = 32;
            param->bEnableFastIntra = 1;
        }
        else if (!strcmp(preset, "superfast"))
        {
            param->lookaheadDepth = 10;
            param->maxCUSize = 32;
            param->bframes = 3;
            param->bFrameAdaptive = 0;
            param->subpelRefine = 1;
            param->bEnableEarlySkip = 1;
            param->bEnableWeightedPred = 0;
            param->rdLevel = 2;
            param->maxNumReferences = 1;
            param->limitReferences = 0;
            param->rc.aqStrength = 0.0;
            param->rc.aqMode = X265_AQ_NONE;
            param->rc.qgSize = 32;
            param->bEnableSAO = 0;
            param->bEnableFastIntra = 1;
        }
        else if (!strcmp(preset, "veryfast"))
        {
            param->lookaheadDepth = 15;
            param->bFrameAdaptive = 0;
            param->subpelRefine = 1;
            param->bEnableEarlySkip = 1;
            param->rdLevel = 2;
            param->maxNumReferences = 2;
            param->rc.qgSize = 32;
            param->bEnableFastIntra = 1;
        }
        else if (!strcmp(preset, "faster"))
        {
            param->lookaheadDepth = 15;
            param->bFrameAdaptive = 0;
            param->bEnableEarlySkip = 1;
            param->rdLevel = 2;
            param->maxNumReferences = 2;
            param->bEnableFastIntra = 1;
        }
        else if (!strcmp(preset, "fast"))
        {
            param->lookaheadDepth = 15;
            param->bFrameAdaptive = 0;
            param->rdLevel = 2;
            param->maxNumReferences = 3;
            param->bEnableFastIntra = 1;
        }
        else if (!strcmp(preset, "medium"))
        {
            /* defaults */
        }
        else if (!strcmp(preset, "slow"))
        {
            param->bEnableRectInter = 1;
            param->lookaheadDepth = 25;
            param->rdLevel = 4;
            param->rdoqLevel = 2;
            param->psyRdoq = 1.0;
            param->subpelRefine = 3;
            param->maxNumMergeCand = 3;
            param->searchMethod = X265_STAR_SEARCH;
            param->maxNumReferences = 4;
            param->limitModes = 1;
            param->lookaheadSlices = 4; // limit parallelism as already enough work exists
        }
        else if (!strcmp(preset, "slower"))
        {
            param->bEnableWeightedBiPred = 1;
            param->bEnableAMP = 1;
            param->bEnableRectInter = 1;
            param->lookaheadDepth = 30;
            param->bframes = 8;
            param->tuQTMaxInterDepth = 2;
            param->tuQTMaxIntraDepth = 2;
            param->rdLevel = 6;
            param->rdoqLevel = 2;
            param->psyRdoq = 1.0;
            param->subpelRefine = 3;
            param->maxNumMergeCand = 3;
            param->searchMethod = X265_STAR_SEARCH;
            param->maxNumReferences = 4;
            param->limitReferences = 2;
            param->limitModes = 1;
            param->bIntraInBFrames = 1;
            param->lookaheadSlices = 4; // limit parallelism as already enough work exists
            param->limitTU = 4;
        }
        else if (!strcmp(preset, "veryslow"))
        {
            param->bEnableWeightedBiPred = 1;
            param->bEnableAMP = 1;
            param->bEnableRectInter = 1;
            param->lookaheadDepth = 40;
            param->bframes = 8;
            param->tuQTMaxInterDepth = 3;
            param->tuQTMaxIntraDepth = 3;
            param->rdLevel = 6;
            param->rdoqLevel = 2;
            param->psyRdoq = 1.0;
            param->subpelRefine = 4;
            param->maxNumMergeCand = 4;
            param->searchMethod = X265_STAR_SEARCH;
            param->maxNumReferences = 5;
            param->limitReferences = 1;
            param->limitModes = 1;
            param->bIntraInBFrames = 1;
            param->lookaheadSlices = 0; // disabled for best quality
            param->limitTU = 4;
        }
        else if (!strcmp(preset, "placebo"))
        {
            param->bEnableWeightedBiPred = 1;
            param->bEnableAMP = 1;
            param->bEnableRectInter = 1;
            param->lookaheadDepth = 60;
            param->searchRange = 92;
            param->bframes = 8;
            param->tuQTMaxInterDepth = 4;
            param->tuQTMaxIntraDepth = 4;
            param->rdLevel = 6;
            param->rdoqLevel = 2;
            param->psyRdoq = 1.0;
            param->subpelRefine = 5;
            param->maxNumMergeCand = 5;
            param->searchMethod = X265_STAR_SEARCH;
            param->bEnableTransformSkip = 1;
            param->bEnableRecursionSkip = 0;
            param->maxNumReferences = 5;
            param->limitReferences = 0;
            param->bIntraInBFrames = 1;
            param->lookaheadSlices = 0; // disabled for best quality
            // TODO: optimized esa
        }

see: https://bitbucket.org/multicoreware/x265...ew-default
you are right.
-> Created a new issue inside the x265 bugtracker for this: https://bitbucket.org/multicoreware/x265...esets-page,
will adjust Hybrid to the source code.

Will go through the source code and adjust Hybrid.
Won't change things like tier&co which are covered by the presets and don't have a default value and are only given a default value by Hybrid.

Cu Selur