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564 lines
20 KiB
C
564 lines
20 KiB
C
/*
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* Copyright (c) 2015 Ronald S. Bultje <rsbultje@gmail.com>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with Libav; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <math.h>
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#include <string.h>
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#include "libavutil/common.h"
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#include "libavutil/internal.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/mathematics.h"
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#include "libavcodec/vp9.h"
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#include "libavcodec/vp9data.h"
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#include "checkasm.h"
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static const uint32_t pixel_mask[3] = { 0xffffffff, 0x03ff03ff, 0x0fff0fff };
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#define BIT_DEPTH 8
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#define SIZEOF_PIXEL ((BIT_DEPTH + 7) / 8)
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#define randomize_buffers() \
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do { \
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uint32_t mask = pixel_mask[(BIT_DEPTH - 8) >> 1]; \
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for (y = 0; y < sz; y++) { \
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for (x = 0; x < sz * SIZEOF_PIXEL; x += 4) { \
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uint32_t r = rnd() & mask; \
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AV_WN32A(dst + y * sz * SIZEOF_PIXEL + x, r); \
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AV_WN32A(src + y * sz * SIZEOF_PIXEL + x, rnd() & mask); \
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} \
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for (x = 0; x < sz; x++) { \
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if (BIT_DEPTH == 8) { \
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coef[y * sz + x] = src[y * sz + x] - dst[y * sz + x]; \
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} else { \
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((int32_t *) coef)[y * sz + x] = \
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((uint16_t *) src)[y * sz + x] - \
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((uint16_t *) dst)[y * sz + x]; \
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} \
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} \
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} \
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} while(0)
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// wht function copied from libvpx
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static void fwht_1d(double *out, const double *in, int sz)
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{
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double t0 = in[0] + in[1];
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double t3 = in[3] - in[2];
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double t4 = trunc((t0 - t3) * 0.5);
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double t1 = t4 - in[1];
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double t2 = t4 - in[2];
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out[0] = t0 - t2;
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out[1] = t2;
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out[2] = t3 + t1;
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out[3] = t1;
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}
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// standard DCT-II
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static void fdct_1d(double *out, const double *in, int sz)
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{
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int k, n;
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for (k = 0; k < sz; k++) {
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out[k] = 0.0;
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for (n = 0; n < sz; n++)
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out[k] += in[n] * cos(M_PI * (2 * n + 1) * k / (sz * 2.0));
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}
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out[0] *= M_SQRT1_2;
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}
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// see "Towards jointly optimal spatial prediction and adaptive transform in
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// video/image coding", by J. Han, A. Saxena, and K. Rose
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// IEEE Proc. ICASSP, pp. 726-729, Mar. 2010.
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static void fadst4_1d(double *out, const double *in, int sz)
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{
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int k, n;
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for (k = 0; k < sz; k++) {
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out[k] = 0.0;
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for (n = 0; n < sz; n++)
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out[k] += in[n] * sin(M_PI * (n + 1) * (2 * k + 1) / (sz * 2.0 + 1.0));
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}
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}
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// see "A Butterfly Structured Design of The Hybrid Transform Coding Scheme",
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// by Jingning Han, Yaowu Xu, and Debargha Mukherjee
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// http://static.googleusercontent.com/media/research.google.com/en//pubs/archive/41418.pdf
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static void fadst_1d(double *out, const double *in, int sz)
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{
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int k, n;
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for (k = 0; k < sz; k++) {
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out[k] = 0.0;
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for (n = 0; n < sz; n++)
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out[k] += in[n] * sin(M_PI * (2 * n + 1) * (2 * k + 1) / (sz * 4.0));
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}
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}
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typedef void (*ftx1d_fn)(double *out, const double *in, int sz);
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static void ftx_2d(double *out, const double *in, enum TxfmMode tx,
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enum TxfmType txtp, int sz)
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{
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static const double scaling_factors[5][4] = {
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{ 4.0, 16.0 * M_SQRT1_2 / 3.0, 16.0 * M_SQRT1_2 / 3.0, 32.0 / 9.0 },
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{ 2.0, 2.0, 2.0, 2.0 },
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{ 1.0, 1.0, 1.0, 1.0 },
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{ 0.25 },
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{ 4.0 }
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};
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static const ftx1d_fn ftx1d_tbl[5][4][2] = {
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{
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{ fdct_1d, fdct_1d },
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{ fadst4_1d, fdct_1d },
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{ fdct_1d, fadst4_1d },
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{ fadst4_1d, fadst4_1d },
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}, {
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{ fdct_1d, fdct_1d },
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{ fadst_1d, fdct_1d },
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{ fdct_1d, fadst_1d },
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{ fadst_1d, fadst_1d },
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}, {
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{ fdct_1d, fdct_1d },
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{ fadst_1d, fdct_1d },
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{ fdct_1d, fadst_1d },
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{ fadst_1d, fadst_1d },
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}, {
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{ fdct_1d, fdct_1d },
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}, {
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{ fwht_1d, fwht_1d },
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},
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};
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double temp[1024];
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double scaling_factor = scaling_factors[tx][txtp];
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int i, j;
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// cols
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for (i = 0; i < sz; ++i) {
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double temp_out[32];
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ftx1d_tbl[tx][txtp][0](temp_out, &in[i * sz], sz);
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// scale and transpose
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for (j = 0; j < sz; ++j)
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temp[j * sz + i] = temp_out[j] * scaling_factor;
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}
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// rows
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for (i = 0; i < sz; i++)
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ftx1d_tbl[tx][txtp][1](&out[i * sz], &temp[i * sz], sz);
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}
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static void ftx(int16_t *buf, enum TxfmMode tx,
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enum TxfmType txtp, int sz, int bit_depth)
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{
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double ind[1024], outd[1024];
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int n;
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emms_c();
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for (n = 0; n < sz * sz; n++) {
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if (bit_depth == 8)
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ind[n] = buf[n];
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else
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ind[n] = ((int32_t *) buf)[n];
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}
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ftx_2d(outd, ind, tx, txtp, sz);
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for (n = 0; n < sz * sz; n++) {
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if (bit_depth == 8)
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buf[n] = lrint(outd[n]);
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else
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((int32_t *) buf)[n] = lrint(outd[n]);
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}
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}
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static int copy_subcoefs(int16_t *out, const int16_t *in, enum TxfmMode tx,
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enum TxfmType txtp, int sz, int sub, int bit_depth)
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{
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// copy the topleft coefficients such that the return value (being the
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// coefficient scantable index for the eob token) guarantees that only
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// the topleft $sub out of $sz (where $sz >= $sub) coefficients in both
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// dimensions are non-zero. This leads to braching to specific optimized
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// simd versions (e.g. dc-only) so that we get full asm coverage in this
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// test
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int n;
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const int16_t *scan = ff_vp9_scans[tx][txtp];
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int eob;
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for (n = 0; n < sz * sz; n++) {
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int rc = scan[n], rcx = rc % sz, rcy = rc / sz;
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// find eob for this sub-idct
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if (rcx >= sub || rcy >= sub)
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break;
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// copy coef
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if (bit_depth == 8) {
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out[rc] = in[rc];
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} else {
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AV_COPY32(&out[rc * 2], &in[rc * 2]);
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}
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}
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eob = n;
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for (; n < sz * sz; n++) {
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int rc = scan[n];
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// zero
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if (bit_depth == 8) {
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out[rc] = 0;
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} else {
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AV_ZERO32(&out[rc * 2]);
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}
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}
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return eob;
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}
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static int iszero(const int16_t *c, int sz)
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{
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int n;
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for (n = 0; n < sz / sizeof(int16_t); n += 2)
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if (AV_RN32A(&c[n]))
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return 0;
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return 1;
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}
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#define SIZEOF_COEF (2 * ((BIT_DEPTH + 7) / 8))
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static void check_itxfm(void)
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{
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LOCAL_ALIGNED_32(uint8_t, src, [32 * 32 * 2]);
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LOCAL_ALIGNED(32, uint8_t, dst, [32 * 32 * 2]);
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LOCAL_ALIGNED(32, uint8_t, dst0, [32 * 32 * 2]);
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LOCAL_ALIGNED(32, uint8_t, dst1, [32 * 32 * 2]);
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LOCAL_ALIGNED(32, int16_t, coef, [32 * 32 * 2]);
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LOCAL_ALIGNED(32, int16_t, subcoef0, [32 * 32 * 2]);
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LOCAL_ALIGNED(32, int16_t, subcoef1, [32 * 32 * 2]);
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declare_func(void, uint8_t *dst, ptrdiff_t stride, int16_t *block, int eob);
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VP9DSPContext dsp;
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int y, x, tx, txtp, sub;
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static const char *const txtp_types[N_TXFM_TYPES] = {
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[DCT_DCT] = "dct_dct", [DCT_ADST] = "adst_dct",
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[ADST_DCT] = "dct_adst", [ADST_ADST] = "adst_adst"
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};
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ff_vp9dsp_init(&dsp);
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for (tx = TX_4X4; tx <= N_TXFM_SIZES /* 4 = lossless */; tx++) {
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int sz = 4 << (tx & 3);
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int n_txtps = tx < TX_32X32 ? N_TXFM_TYPES : 1;
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for (txtp = 0; txtp < n_txtps; txtp++) {
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// skip testing sub-IDCTs for WHT or ADST since they don't
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// implement it in any of the SIMD functions. If they do,
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// consider changing this to ensure we have complete test
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// coverage
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for (sub = (txtp == 0 && tx < 4) ? 1 : sz; sub <= sz; sub <<= 1) {
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if (check_func(dsp.itxfm_add[tx][txtp],
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"vp9_inv_%s_%dx%d_sub%d_add",
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tx == 4 ? "wht_wht" : txtp_types[txtp],
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sz, sz, sub)) {
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int eob;
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randomize_buffers();
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ftx(coef, tx, txtp, sz, BIT_DEPTH);
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if (sub < sz) {
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eob = copy_subcoefs(subcoef0, coef, tx, txtp,
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sz, sub, BIT_DEPTH);
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} else {
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eob = sz * sz;
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memcpy(subcoef0, coef, sz * sz * SIZEOF_COEF);
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}
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memcpy(dst0, dst, sz * sz * SIZEOF_PIXEL);
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memcpy(dst1, dst, sz * sz * SIZEOF_PIXEL);
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memcpy(subcoef1, subcoef0, sz * sz * SIZEOF_COEF);
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call_ref(dst0, sz * SIZEOF_PIXEL, subcoef0, eob);
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call_new(dst1, sz * SIZEOF_PIXEL, subcoef1, eob);
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if (memcmp(dst0, dst1, sz * sz * SIZEOF_PIXEL) ||
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!iszero(subcoef0, sz * sz * SIZEOF_COEF) ||
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!iszero(subcoef1, sz * sz * SIZEOF_COEF))
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fail();
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bench_new(dst, sz * SIZEOF_PIXEL, coef, eob);
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}
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}
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}
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}
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report("itxfm");
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}
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#undef randomize_buffers
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#define setpx(a,b,c) \
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do { \
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if (SIZEOF_PIXEL == 1) { \
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buf0[(a) + (b) * jstride] = av_clip_uint8(c); \
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} else { \
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((uint16_t *)buf0)[(a) + (b) * jstride] = av_clip_uintp2(c, BIT_DEPTH); \
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} \
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} while (0)
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#define setdx(a,b,c,d) setpx(a,b,c-(d)+(rnd()%((d)*2+1)))
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#define setsx(a,b,c,d) setdx(a,b,c,(d) << (BIT_DEPTH - 8))
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static void randomize_loopfilter_buffers(int bidx, int lineoff, int str,
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int bit_depth, int dir,
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const int *E, const int *F,
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const int *H, const int *I,
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uint8_t *buf0, uint8_t *buf1)
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{
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uint32_t mask = (1 << BIT_DEPTH) - 1;
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int off = dir ? lineoff : lineoff * 16;
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int istride = dir ? 1 : 16;
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int jstride = dir ? str : 1;
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int i, j;
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for (i = 0; i < 2; i++) /* flat16 */ {
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int idx = off + i * istride, p0, q0;
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setpx(idx, 0, q0 = rnd() & mask);
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setsx(idx, -1, p0 = q0, E[bidx] >> 2);
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for (j = 1; j < 8; j++) {
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setsx(idx, -1 - j, p0, F[bidx]);
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setsx(idx, j, q0, F[bidx]);
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}
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}
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for (i = 2; i < 4; i++) /* flat8 */ {
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int idx = off + i * istride, p0, q0;
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setpx(idx, 0, q0 = rnd() & mask);
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setsx(idx, -1, p0 = q0, E[bidx] >> 2);
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for (j = 1; j < 4; j++) {
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setsx(idx, -1 - j, p0, F[bidx]);
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setsx(idx, j, q0, F[bidx]);
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}
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for (j = 4; j < 8; j++) {
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setpx(idx, -1 - j, rnd() & mask);
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setpx(idx, j, rnd() & mask);
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}
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}
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for (i = 4; i < 6; i++) /* regular */ {
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int idx = off + i * istride, p2, p1, p0, q0, q1, q2;
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setpx(idx, 0, q0 = rnd() & mask);
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setsx(idx, 1, q1 = q0, I[bidx]);
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setsx(idx, 2, q2 = q1, I[bidx]);
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setsx(idx, 3, q2, I[bidx]);
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setsx(idx, -1, p0 = q0, E[bidx] >> 2);
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setsx(idx, -2, p1 = p0, I[bidx]);
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setsx(idx, -3, p2 = p1, I[bidx]);
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setsx(idx, -4, p2, I[bidx]);
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for (j = 4; j < 8; j++) {
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setpx(idx, -1 - j, rnd() & mask);
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setpx(idx, j, rnd() & mask);
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}
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}
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for (i = 6; i < 8; i++) /* off */ {
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int idx = off + i * istride;
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for (j = 0; j < 8; j++) {
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setpx(idx, -1 - j, rnd() & mask);
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setpx(idx, j, rnd() & mask);
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}
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}
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}
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#define randomize_buffers(bidx, lineoff, str) \
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randomize_loopfilter_buffers(bidx, lineoff, str, BIT_DEPTH, dir, \
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E, F, H, I, buf0, buf1)
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static void check_loopfilter(void)
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{
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LOCAL_ALIGNED_32(uint8_t, base0, [32 + 16 * 16 * 2]);
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LOCAL_ALIGNED_32(uint8_t, base1, [32 + 16 * 16 * 2]);
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VP9DSPContext dsp;
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int dir, wd, wd2;
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static const char *const dir_name[2] = { "h", "v" };
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static const int E[2] = { 20, 28 }, I[2] = { 10, 16 };
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static const int H[2] = { 7, 11 }, F[2] = { 1, 1 };
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declare_func(void, uint8_t *dst, ptrdiff_t stride, int E, int I, int H);
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ff_vp9dsp_init(&dsp);
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for (dir = 0; dir < 2; dir++) {
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uint8_t *buf0, *buf1;
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int midoff = (dir ? 8 * 8 : 8) * SIZEOF_PIXEL;
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int midoff_aligned = (dir ? 8 * 8 : 16) * SIZEOF_PIXEL;
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buf0 = base0 + midoff_aligned;
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buf1 = base1 + midoff_aligned;
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for (wd = 0; wd < 3; wd++) {
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// 4/8/16wd_8px
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if (check_func(dsp.loop_filter_8[wd][dir],
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"vp9_loop_filter_%s_%d_8",
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dir_name[dir], 4 << wd)) {
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randomize_buffers(0, 0, 8);
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memcpy(buf1 - midoff, buf0 - midoff,
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16 * 8 * SIZEOF_PIXEL);
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call_ref(buf0, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);
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call_new(buf1, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);
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if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 8 * SIZEOF_PIXEL))
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fail();
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bench_new(buf1, 16 * SIZEOF_PIXEL >> dir, E[0], I[0], H[0]);
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}
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}
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midoff = (dir ? 16 * 8 : 8) * SIZEOF_PIXEL;
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midoff_aligned = (dir ? 16 * 8 : 16) * SIZEOF_PIXEL;
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buf0 = base0 + midoff_aligned;
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buf1 = base1 + midoff_aligned;
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// 16wd_16px loopfilter
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if (check_func(dsp.loop_filter_16[dir],
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"vp9_loop_filter_%s_16_16",
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dir_name[dir])) {
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randomize_buffers(0, 0, 16);
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randomize_buffers(0, 8, 16);
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memcpy(buf1 - midoff, buf0 - midoff, 16 * 16 * SIZEOF_PIXEL);
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|
call_ref(buf0, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);
|
|
call_new(buf1, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);
|
|
if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 16 * SIZEOF_PIXEL))
|
|
fail();
|
|
bench_new(buf1, 16 * SIZEOF_PIXEL, E[0], I[0], H[0]);
|
|
}
|
|
|
|
for (wd = 0; wd < 2; wd++) {
|
|
for (wd2 = 0; wd2 < 2; wd2++) {
|
|
// mix2 loopfilter
|
|
if (check_func(dsp.loop_filter_mix2[wd][wd2][dir],
|
|
"vp9_loop_filter_mix2_%s_%d%d_16",
|
|
dir_name[dir], 4 << wd, 4 << wd2)) {
|
|
randomize_buffers(0, 0, 16);
|
|
randomize_buffers(1, 8, 16);
|
|
memcpy(buf1 - midoff, buf0 - midoff, 16 * 16 * SIZEOF_PIXEL);
|
|
#define M(a) ((a[1] << 8) | a[0])
|
|
call_ref(buf0, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));
|
|
call_new(buf1, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));
|
|
if (memcmp(buf0 - midoff, buf1 - midoff, 16 * 16 * SIZEOF_PIXEL))
|
|
fail();
|
|
bench_new(buf1, 16 * SIZEOF_PIXEL, M(E), M(I), M(H));
|
|
#undef M
|
|
}
|
|
}
|
|
}
|
|
}
|
|
report("loopfilter");
|
|
}
|
|
|
|
#undef setsx
|
|
#undef setpx
|
|
#undef setdx
|
|
#undef randomize_buffers
|
|
|
|
#define DST_BUF_SIZE (size * size * SIZEOF_PIXEL)
|
|
#define SRC_BUF_STRIDE 72
|
|
#define SRC_BUF_SIZE ((size + 7) * SRC_BUF_STRIDE * SIZEOF_PIXEL)
|
|
#define src (buf + 3 * SIZEOF_PIXEL * (SRC_BUF_STRIDE + 1))
|
|
|
|
#define randomize_buffers() \
|
|
do { \
|
|
uint32_t mask = pixel_mask[(BIT_DEPTH - 8) >> 1]; \
|
|
int k; \
|
|
for (k = 0; k < SRC_BUF_SIZE; k += 4) { \
|
|
uint32_t r = rnd() & mask; \
|
|
AV_WN32A(buf + k, r); \
|
|
} \
|
|
if (op == 1) { \
|
|
for (k = 0; k < DST_BUF_SIZE; k += 4) { \
|
|
uint32_t r = rnd() & mask; \
|
|
AV_WN32A(dst0 + k, r); \
|
|
AV_WN32A(dst1 + k, r); \
|
|
} \
|
|
} \
|
|
} while (0)
|
|
|
|
static void check_mc(void)
|
|
{
|
|
static const char *const filter_names[4] = {
|
|
"8tap_smooth", "8tap_regular", "8tap_sharp", "bilin"
|
|
};
|
|
static const char *const subpel_names[2][2] = { { "", "h" }, { "v", "hv" } };
|
|
static const char *const op_names[2] = { "put", "avg" };
|
|
|
|
LOCAL_ALIGNED_32(uint8_t, buf, [72 * 72 * 2]);
|
|
LOCAL_ALIGNED_32(uint8_t, dst0, [64 * 64 * 2]);
|
|
LOCAL_ALIGNED_32(uint8_t, dst1, [64 * 64 * 2]);
|
|
char str[256];
|
|
VP9DSPContext dsp;
|
|
int op, hsize, filter, dx, dy;
|
|
|
|
declare_func_emms(AV_CPU_FLAG_MMX | AV_CPU_FLAG_MMXEXT,
|
|
void, uint8_t *dst, ptrdiff_t dst_stride,
|
|
const uint8_t *ref, ptrdiff_t ref_stride,
|
|
int h, int mx, int my);
|
|
|
|
for (op = 0; op < 2; op++) {
|
|
ff_vp9dsp_init(&dsp);
|
|
for (hsize = 0; hsize < 5; hsize++) {
|
|
int size = 64 >> hsize;
|
|
|
|
for (filter = 0; filter < 4; filter++) {
|
|
for (dx = 0; dx < 2; dx++) {
|
|
for (dy = 0; dy < 2; dy++) {
|
|
if (dx || dy) {
|
|
snprintf(str, sizeof(str), "%s_%s_%d%s", op_names[op],
|
|
filter_names[filter], size,
|
|
subpel_names[dy][dx]);
|
|
} else {
|
|
snprintf(str, sizeof(str), "%s%d", op_names[op], size);
|
|
}
|
|
if (check_func(dsp.mc[hsize][filter][op][dx][dy],
|
|
"vp9_%s", str)) {
|
|
int mx = dx ? 1 + (rnd() % 14) : 0;
|
|
int my = dy ? 1 + (rnd() % 14) : 0;
|
|
randomize_buffers();
|
|
call_ref(dst0, size * SIZEOF_PIXEL,
|
|
src, SRC_BUF_STRIDE * SIZEOF_PIXEL,
|
|
size, mx, my);
|
|
call_new(dst1, size * SIZEOF_PIXEL,
|
|
src, SRC_BUF_STRIDE * SIZEOF_PIXEL,
|
|
size, mx, my);
|
|
if (memcmp(dst0, dst1, DST_BUF_SIZE))
|
|
fail();
|
|
|
|
// SIMD implementations for each filter of subpel
|
|
// functions are identical
|
|
if (filter >= 1 && filter <= 2) continue;
|
|
|
|
bench_new(dst1, size * SIZEOF_PIXEL,
|
|
src, SRC_BUF_STRIDE * SIZEOF_PIXEL,
|
|
size, mx, my);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
report("mc");
|
|
}
|
|
|
|
void checkasm_check_vp9dsp(void)
|
|
{
|
|
check_itxfm();
|
|
check_loopfilter();
|
|
check_mc();
|
|
}
|