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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| #include "shared.h" | ||
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| struct planeAverageData final { | ||
| VSNode* node; | ||
| const VSVideoInfo* vi; | ||
| std::vector<int> pxlist; | ||
| int plane; | ||
| }; | ||
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| static const VSFrame* VS_CC planeAverageGetFrame(int n, int activationReason, void* instanceData, void** frameData, VSFrameContext* frameCtx, VSCore* core, const VSAPI* vsapi) { | ||
| auto d{ static_cast<planeAverageData*>(instanceData) }; | ||
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| if (activationReason == arInitial) { | ||
| vsapi->requestFrameFilter(n, d->node, frameCtx); | ||
| } | ||
| else if (activationReason == arAllFramesReady) { | ||
| const VSFrame* src = vsapi->getFrameFilter(n, d->node, frameCtx); | ||
| VSFrame* dst = vsapi->copyFrame(src, core); | ||
| VSMap* dstProps = vsapi->getFramePropertiesRW(dst); | ||
| int height = vsapi->getFrameHeight(src, d->plane); | ||
| int width = vsapi->getFrameWidth(src, d->plane); | ||
| auto srcp = vsapi->getReadPtr(src, d->plane); | ||
| ptrdiff_t stride = vsapi->getStride(src, d->plane); | ||
| auto total = (int64_t)height * width; | ||
| double avg = 0.0; | ||
| uint64_t sum = 0; | ||
| double sumf = 0.0; | ||
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| switch (d->vi->format.bytesPerSample) { | ||
| case 1: | ||
| for (int y = 0; y < height; y++) { | ||
| for (int x = 0; x < width; x++) { | ||
| auto pixel = srcp[x]; | ||
| auto result = std::find(begin(d->pxlist), end(d->pxlist), pixel); | ||
| auto bresult = (result != std::end(d->pxlist)); | ||
| if (!bresult) { | ||
| sum += pixel; | ||
| } | ||
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| if (bresult) { | ||
| total--; | ||
| } | ||
| } | ||
| srcp += stride; | ||
| } | ||
| avg = (double)sum / (total * (((int64_t)1 << d->vi->format.bitsPerSample) - 1)); | ||
| break; | ||
| case 2: | ||
| for (int y = 0; y < height; y++) { | ||
| for (int x = 0; x < width; x++) { | ||
| auto pixel = ((const uint16_t*)srcp)[x]; | ||
| auto result = std::find(begin(d->pxlist), end(d->pxlist), pixel); | ||
| auto bresult = (result != std::end(d->pxlist)); | ||
| if (!bresult) { | ||
| sum += pixel; | ||
| } | ||
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| if (bresult) { | ||
| total--; | ||
| } | ||
| } | ||
| srcp += stride; | ||
| } | ||
| avg = (double)sum / (total * (((int64_t)1 << d->vi->format.bitsPerSample) - 1)); | ||
| break; | ||
| case 4: | ||
| for (int y = 0; y < height; y++) { | ||
| for (int x = 0; x < width; x++) { | ||
| auto pixel = ((const float*)srcp)[x]; | ||
| auto result = std::find(begin(d->pxlist), end(d->pxlist), pixel); | ||
| auto bresult = (result != std::end(d->pxlist)); | ||
| if (!bresult) { | ||
| sumf += pixel; | ||
| } | ||
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| if (bresult) { | ||
| total--; | ||
| } | ||
| } | ||
| srcp += stride; | ||
| } | ||
| avg = sumf / total; | ||
| break; | ||
| } | ||
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| vsapi->mapSetFloat(dstProps, "psmAvg", avg, maReplace); | ||
| vsapi->freeFrame(src); | ||
| return dst; | ||
| } | ||
| return nullptr; | ||
| } | ||
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| static void VS_CC planeAverageFree(void* instanceData, VSCore* core, const VSAPI* vsapi) { | ||
| auto d{ static_cast<planeAverageData*>(instanceData) }; | ||
| vsapi->freeNode(d->node); | ||
| delete d; | ||
| } | ||
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| void VS_CC planeAverageCreate(const VSMap* in, VSMap* out, void* userData, VSCore* core, const VSAPI* vsapi) { | ||
| auto d{ std::make_unique<planeAverageData>() }; | ||
| int err = 0; | ||
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| d->node = vsapi->mapGetNode(in, "clip", 0, nullptr); | ||
| d->vi = vsapi->getVideoInfo(d->node); | ||
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| int numpx = vsapi->mapNumElements(in, "value_exclude"); | ||
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| for (int i = 0; i < numpx; i++) { | ||
| d->pxlist.push_back(vsapi->mapGetIntSaturated(in, "value_exclude", i, 0)); | ||
| } | ||
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| d->plane = vsapi->mapGetIntSaturated(in, "plane", 0, &err); | ||
| if (err) | ||
| d->plane = 0; | ||
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| if (d->plane < 0 || d->plane >= d->vi->format.numPlanes) { | ||
| vsapi->mapSetError(out, "PlaneAverage: invalid plane specified"); | ||
| vsapi->freeNode(d->node); | ||
| return; | ||
| } | ||
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| VSFilterDependency deps[] = { {d->node, rpStrictSpatial} }; | ||
| vsapi->createVideoFilter(out, "PlaneAverage", d->vi, planeAverageGetFrame, planeAverageFree, fmParallel, deps, 1, d.get(), core); | ||
| d.release(); | ||
| } |
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