[x265] [PATCH] Main12: fix distortion data type

Deepthi Nandakumar deepthi at multicorewareinc.com
Mon Aug 10 06:45:49 CEST 2015


Also calcRdSADcost does not need to move to 64-bit precision. SAD cost will
not exceed dynamic range, as there is no squaring.

On Fri, Aug 7, 2015 at 7:55 PM, chen <chenm003 at 163.com> wrote:

> dynamic range:
>
> 10 bits: 10 + 10 + 12 = 32 bits
> 12 bits: 12 + 12 + 12 = 36 bits.
>
>
> so in 10bits, we don't need uint64_t
>
>
> At 2015-08-07 20:02:13,"Divya Manivannan" <divya at multicorewareinc.com> wrote:
> ># HG changeset patch
> ># User Divya Manivannan <divya at multicorewareinc.com>
> ># Date 1438948368 -19800
> >#      Fri Aug 07 17:22:48 2015 +0530
> ># Branch stable
> ># Node ID e2d9e7ea1add7cfacb40314155c3a23aa6e63426
> ># Parent  4781e6cef251006db10e107b2916741572f7760a
> >Main12: fix distortion data type
> >
> >diff -r 4781e6cef251 -r e2d9e7ea1add source/common/pixel.cpp
> >--- a/source/common/pixel.cpp	Fri Aug 07 12:29:40 2015 +0530
> >+++ b/source/common/pixel.cpp	Fri Aug 07 17:22:48 2015 +0530
> >@@ -137,6 +137,27 @@
> >     return sum;
> > }
> >
> >+template<int lx, int ly, class T1, class T2>
> >+uint64_t sse(const T1* pix1, intptr_t stride_pix1, const T2* pix2, intptr_t stride_pix2)
> >+{
> >+    uint64_t sum = 0;
> >+    int tmp;
> >+
> >+    for (int y = 0; y < ly; y++)
> >+    {
> >+        for (int x = 0; x < lx; x++)
> >+        {
> >+            tmp = pix1[x] - pix2[x];
> >+            sum += (tmp * tmp);
> >+        }
> >+
> >+        pix1 += stride_pix1;
> >+        pix2 += stride_pix2;
> >+    }
> >+
> >+    return sum;
> >+}
> >+
> > #define BITS_PER_SUM (8 * sizeof(sum_t))
> >
> > #define HADAMARD4(d0, d1, d2, d3, s0, s1, s2, s3) { \
> >diff -r 4781e6cef251 -r e2d9e7ea1add source/common/primitives.cpp
> >--- a/source/common/primitives.cpp	Fri Aug 07 12:29:40 2015 +0530
> >+++ b/source/common/primitives.cpp	Fri Aug 07 17:22:48 2015 +0530
> >@@ -74,7 +74,11 @@
> >     /* at HIGH_BIT_DEPTH, pixel == short so we can alias many primitives */
> >     for (int i = 0; i < NUM_CU_SIZES; i++)
> >     {
> >+#if X265_DEPTH <= 10
> >         p.cu[i].sse_pp = (pixelcmp_t)p.cu[i].sse_ss;
> >+#else
> >+        p.cu[i].sse_pp = (pixel_sse_t)p.cu[i].sse_ss;
> >+#endif
> >
> >         p.cu[i].copy_ps = (copy_ps_t)p.pu[i].copy_pp;
> >         p.cu[i].copy_sp = (copy_sp_t)p.pu[i].copy_pp;
> >diff -r 4781e6cef251 -r e2d9e7ea1add source/common/primitives.h
> >--- a/source/common/primitives.h	Fri Aug 07 12:29:40 2015 +0530
> >+++ b/source/common/primitives.h	Fri Aug 07 17:22:48 2015 +0530
> >@@ -112,6 +112,10 @@
> >
> > typedef int  (*pixelcmp_t)(const pixel* fenc, intptr_t fencstride, const pixel* fref, intptr_t frefstride); // fenc is aligned
> > typedef int  (*pixelcmp_ss_t)(const int16_t* fenc, intptr_t fencstride, const int16_t* fref, intptr_t frefstride);
> >+#if X265_DEPTH > 10
> >+typedef uint64_t (*pixel_sse_t)(const pixel* fenc, intptr_t fencstride, const pixel* fref, intptr_t frefstride); // fenc is aligned
> >+typedef uint64_t (*pixel_sse_ss_t)(const int16_t* fenc, intptr_t fencstride, const int16_t* fref, intptr_t frefstride);
> >+#endif
> > typedef int  (*pixel_ssd_s_t)(const int16_t* fenc, intptr_t fencstride);
> > typedef void (*pixelcmp_x4_t)(const pixel* fenc, const pixel* fref0, const pixel* fref1, const pixel* fref2, const pixel* fref3, intptr_t frefstride, int32_t* res);
> > typedef void (*pixelcmp_x3_t)(const pixel* fenc, const pixel* fref0, const pixel* fref1, const pixel* fref2, intptr_t frefstride, int32_t* res);
> >@@ -253,8 +257,14 @@
> >         copy_pp_t       copy_pp;       // alias to pu[].copy_pp
> >
> >         var_t           var;           // block internal variance
> >+
> >+#if X265_DEPTH <= 10
> >         pixelcmp_t      sse_pp;        // Sum of Square Error (pixel, pixel) fenc alignment not assumed
> >         pixelcmp_ss_t   sse_ss;        // Sum of Square Error (short, short) fenc alignment not assumed
> >+#else
> >+        pixel_sse_t     sse_pp;        // Sum of Square Error (pixel, pixel) fenc alignment not assumed
> >+        pixel_sse_ss_t  sse_ss;        // Sum of Square Error (short, short) fenc alignment not assumed
> >+#endif
> >         pixelcmp_t      psy_cost_pp;   // difference in AC energy between two pixel blocks
> >         pixelcmp_ss_t   psy_cost_ss;   // difference in AC energy between two signed residual blocks
> >         pixel_ssd_s_t   ssd_s;         // Sum of Square Error (residual coeff to self)
> >@@ -358,7 +368,11 @@
> >         struct CUChroma
> >         {
> >             pixelcmp_t     sa8d;    // if chroma CU is not multiple of 8x8, will use satd
> >+#if X265_DEPTH <= 10
> >             pixelcmp_t     sse_pp;
> >+#else
> >+            pixel_sse_t    sse_pp;
> >+#endif
> >             pixel_sub_ps_t sub_ps;
> >             pixel_add_ps_t add_ps;
> >
> >diff -r 4781e6cef251 -r e2d9e7ea1add source/common/x86/asm-primitives.cpp
> >--- a/source/common/x86/asm-primitives.cpp	Fri Aug 07 12:29:40 2015 +0530
> >+++ b/source/common/x86/asm-primitives.cpp	Fri Aug 07 17:22:48 2015 +0530
> >@@ -998,6 +998,7 @@
> >         p.cu[BLOCK_4x4].intra_pred[32] = PFX(intra_pred_ang4_32_sse2);
> >         p.cu[BLOCK_4x4].intra_pred[33] = PFX(intra_pred_ang4_33_sse2);
> >
> >+#if X265_DEPTH <= 10
> >         p.cu[BLOCK_4x4].sse_ss = PFX(pixel_ssd_ss_4x4_mmx2);
> >         ALL_LUMA_CU(sse_ss, pixel_ssd_ss, sse2);
> >
> >@@ -1005,6 +1006,7 @@
> >         p.chroma[X265_CSP_I422].cu[BLOCK_422_8x16].sse_pp = (pixelcmp_t)PFX(pixel_ssd_ss_8x16_sse2);
> >         p.chroma[X265_CSP_I422].cu[BLOCK_422_16x32].sse_pp = (pixelcmp_t)PFX(pixel_ssd_ss_16x32_sse2);
> >         p.chroma[X265_CSP_I422].cu[BLOCK_422_32x64].sse_pp = (pixelcmp_t)PFX(pixel_ssd_ss_32x64_sse2);
> >+#endif
> >
> >         p.cu[BLOCK_4x4].dct = PFX(dct4_sse2);
> >         p.cu[BLOCK_8x8].dct = PFX(dct8_sse2);
> >@@ -1527,6 +1529,7 @@
> >         p.cu[BLOCK_16x16].ssd_s = PFX(pixel_ssd_s_16_avx2);
> >         p.cu[BLOCK_32x32].ssd_s = PFX(pixel_ssd_s_32_avx2);
> >
> >+#if X265_DEPTH <= 10
> >         p.cu[BLOCK_16x16].sse_ss = PFX(pixel_ssd_ss_16x16_avx2);
> >         p.cu[BLOCK_32x32].sse_ss = PFX(pixel_ssd_ss_32x32_avx2);
> >         p.cu[BLOCK_64x64].sse_ss = PFX(pixel_ssd_ss_64x64_avx2);
> >@@ -1538,6 +1541,7 @@
> >         p.chroma[X265_CSP_I420].cu[BLOCK_420_32x32].sse_pp = PFX(pixel_ssd_32x32_avx2);
> >         p.chroma[X265_CSP_I422].cu[BLOCK_422_16x32].sse_pp = (pixelcmp_t)PFX(pixel_ssd_ss_16x32_avx2);
> >         p.chroma[X265_CSP_I422].cu[BLOCK_422_32x64].sse_pp = (pixelcmp_t)PFX(pixel_ssd_ss_32x64_avx2);
> >+#endif
> >
> >         p.quant = PFX(quant_avx2);
> >         p.nquant = PFX(nquant_avx2);
> >diff -r 4781e6cef251 -r e2d9e7ea1add source/encoder/rdcost.h
> >--- a/source/encoder/rdcost.h	Fri Aug 07 12:29:40 2015 +0530
> >+++ b/source/encoder/rdcost.h	Fri Aug 07 17:22:48 2015 +0530
> >@@ -88,12 +88,21 @@
> >         m_lambda = (uint64_t)floor(256.0 * lambda);
> >     }
> >
> >+#if X265_DEPTH <= 10
> >     inline uint64_t calcRdCost(uint32_t distortion, uint32_t bits) const
> >     {
> >         X265_CHECK(bits <= (UINT64_MAX - 128) / m_lambda2,
> >                    "calcRdCost wrap detected dist: %u, bits %u, lambda: "X265_LL"\n", distortion, bits, m_lambda2);
> >         return distortion + ((bits * m_lambda2 + 128) >> 8);
> >     }
> >+#else
> >+    inline uint64_t calcRdCost(uint64_t distortion, uint32_t bits) const
> >+    {
> >+        X265_CHECK(bits <= (UINT64_MAX - 128) / m_lambda2,
> >+            "calcRdCost wrap detected dist: %u, bits %u, lambda: "X265_LL"\n", distortion, bits, m_lambda2);
> >+        return distortion + ((bits * m_lambda2 + 128) >> 8);
> >+    }
> >+#endif
> >
> >     /* return the difference in energy between the source block and the recon block */
> >     inline int psyCost(int size, const pixel* source, intptr_t sstride, const pixel* recon, intptr_t rstride) const
> >@@ -108,17 +117,33 @@
> >     }
> >
> >     /* return the RD cost of this prediction, including the effect of psy-rd */
> >+#if X265_DEPTH <= 10
> >     inline uint64_t calcPsyRdCost(uint32_t distortion, uint32_t bits, uint32_t psycost) const
> >     {
> >         return distortion + ((m_lambda * m_psyRd * psycost) >> 24) + ((bits * m_lambda2) >> 8);
> >     }
> >+#else
> >+    inline uint64_t calcPsyRdCost(uint64_t distortion, uint32_t bits, uint32_t psycost) const
> >+    {
> >+        return distortion + ((m_lambda * m_psyRd * psycost) >> 24) + ((bits * m_lambda2) >> 8);
> >+    }
> >+#endif
> >
> >+#if X265_DEPTH <= 10
> >     inline uint64_t calcRdSADCost(uint32_t sadCost, uint32_t bits) const
> >     {
> >         X265_CHECK(bits <= (UINT64_MAX - 128) / m_lambda,
> >                    "calcRdSADCost wrap detected dist: %u, bits %u, lambda: "X265_LL"\n", sadCost, bits, m_lambda);
> >         return sadCost + ((bits * m_lambda + 128) >> 8);
> >     }
> >+#else
> >+    inline uint64_t calcRdSADCost(uint64_t sadCost, uint32_t bits) const
> >+    {
> >+        X265_CHECK(bits <= (UINT64_MAX - 128) / m_lambda,
> >+            "calcRdSADCost wrap detected dist: %u, bits %u, lambda: "X265_LL"\n", sadCost, bits, m_lambda);
> >+        return sadCost + ((bits * m_lambda + 128) >> 8);
> >+    }
> >+#endif
> >
> >     inline uint32_t scaleChromaDist(uint32_t plane, uint32_t dist) const
> >     {
> >diff -r 4781e6cef251 -r e2d9e7ea1add source/encoder/search.h
> >--- a/source/encoder/search.h	Fri Aug 07 12:29:40 2015 +0530
> >+++ b/source/encoder/search.h	Fri Aug 07 17:22:48 2015 +0530
> >@@ -109,9 +109,15 @@
> >     uint64_t   sa8dCost;   // sum of partition sa8d distortion costs   (sa8d(fenc, pred) + lambda * bits)
> >     uint32_t   sa8dBits;   // signal bits used in sa8dCost calculation
> >     uint32_t   psyEnergy;  // sum of partition psycho-visual energy difference
> >+#if X265_DEPTH <= 10
> >     uint32_t   lumaDistortion;
> >     uint32_t   chromaDistortion;
> >     uint32_t   distortion; // sum of partition SSE distortion
> >+#else
> >+    uint64_t   lumaDistortion;
> >+    uint64_t   chromaDistortion;
> >+    uint64_t   distortion; // sum of partition SSE distortion
> >+#endif
> >     uint32_t   totalBits;  // sum of partition bits (mv + coeff)
> >     uint32_t   mvBits;     // Mv bits + Ref + block type (or intra mode)
> >     uint32_t   coeffBits;  // Texture bits (DCT Coeffs)
> >@@ -137,9 +143,15 @@
> >         sa8dCost = UINT64_MAX / 2;
> >         sa8dBits = MAX_UINT / 2;
> >         psyEnergy = MAX_UINT / 2;
> >+#if X265_DEPTH <= 10
> >         lumaDistortion = MAX_UINT / 2;
> >         chromaDistortion = MAX_UINT / 2;
> >         distortion = MAX_UINT / 2;
> >+#else
> >+        lumaDistortion = UINT64_MAX / 2;
> >+        chromaDistortion = UINT64_MAX / 2;
> >+        distortion = UINT64_MAX / 2;
> >+#endif
> >         totalBits = MAX_UINT / 2;
> >         mvBits = MAX_UINT / 2;
> >         coeffBits = MAX_UINT / 2;
> >@@ -147,16 +159,29 @@
> >
> >     bool ok() const
> >     {
> >+#if X265_DEPTH <= 10
> >+        return !(rdCost >= UINT64_MAX / 2 ||
> >+            sa8dCost >= UINT64_MAX / 2 ||
> >+            sa8dBits >= MAX_UINT / 2 ||
> >+            psyEnergy >= MAX_UINT / 2 ||
> >+            lumaDistortion >= MAX_UINT / 2 ||
> >+            chromaDistortion >= MAX_UINT / 2 ||
> >+            distortion >= MAX_UINT / 2 ||
> >+            totalBits >= MAX_UINT / 2 ||
> >+            mvBits >= MAX_UINT / 2 ||
> >+            coeffBits >= MAX_UINT / 2);
> >+#else
> >         return !(rdCost >= UINT64_MAX / 2 ||
> >                  sa8dCost >= UINT64_MAX / 2 ||
> >                  sa8dBits >= MAX_UINT / 2 ||
> >                  psyEnergy >= MAX_UINT / 2 ||
> >-                 lumaDistortion >= MAX_UINT / 2 ||
> >-                 chromaDistortion >= MAX_UINT / 2 ||
> >-                 distortion >= MAX_UINT / 2 ||
> >+                 lumaDistortion >= UINT64_MAX / 2 ||
> >+                 chromaDistortion >= UINT64_MAX / 2 ||
> >+                 distortion >= UINT64_MAX / 2 ||
> >                  totalBits >= MAX_UINT / 2 ||
> >                  mvBits >= MAX_UINT / 2 ||
> >                  coeffBits >= MAX_UINT / 2);
> >+#endif
> >     }
> >
> >     void addSubCosts(const Mode& subMode)
> >diff -r 4781e6cef251 -r e2d9e7ea1add source/test/pixelharness.cpp
> >--- a/source/test/pixelharness.cpp	Fri Aug 07 12:29:40 2015 +0530
> >+++ b/source/test/pixelharness.cpp	Fri Aug 07 17:22:48 2015 +0530
> >@@ -1799,20 +1799,24 @@
> >     {
> >         if (opt.cu[part].sse_pp)
> >         {
> >+#if X265_DEPTH <= 10
> >             if (!check_pixelcmp(ref.cu[part].sse_pp, opt.cu[part].sse_pp))
> >             {
> >                 printf("sse_pp[%s]: failed!\n", lumaPartStr[part]);
> >                 return false;
> >             }
> >+#endif
> >         }
> >
> >         if (opt.cu[part].sse_ss)
> >         {
> >+#if X265_DEPTH <= 10
> >             if (!check_pixelcmp_ss(ref.cu[part].sse_ss, opt.cu[part].sse_ss))
> >             {
> >                 printf("sse_ss[%s]: failed!\n", lumaPartStr[part]);
> >                 return false;
> >             }
> >+#endif
> >         }
> >
> >         if (opt.cu[part].sub_ps)
> >@@ -1891,11 +1895,13 @@
> >         {
> >             if (opt.chroma[i].cu[part].sse_pp)
> >             {
> >+#if X265_DEPTH <= 10
> >                 if (!check_pixelcmp(ref.chroma[i].cu[part].sse_pp, opt.chroma[i].cu[part].sse_pp))
> >                 {
> >                     printf("chroma_sse_pp[%s][%s]: failed!\n", x265_source_csp_names[i], chromaPartStr[i][part]);
> >                     return false;
> >                 }
> >+#endif
> >             }
> >             if (opt.chroma[i].cu[part].sub_ps)
> >             {
> >_______________________________________________
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> >x265-devel at videolan.org
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>
>
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