shithub: libvpx

Download patch

ref: ede392d7651ffb6c27a19807a14886c910838bb9
parent: c6a1ff223b80f77ae08c4a6fab2e11843c0a2e37
parent: ed90a176affe7920215ea0be1d548af0cb4f2999
author: Yaowu Xu <yaowu@google.com>
date: Tue Dec 17 11:57:01 EST 2013

Merge changes I5d28c2f5,Ib00b036f

* changes:
  Remove redundant function and calls
  Add test for partial inverse transforms

--- a/test/acm_random.h
+++ b/test/acm_random.h
@@ -26,6 +26,11 @@
   void Reset(int seed) {
     random_.Reseed(seed);
   }
+  uint16_t Rand16(void) {
+    const uint32_t value =
+        random_.Generate(testing::internal::Random::kMaxRange);
+    return (value >> 16) & 0xffff;
+  }
 
   uint8_t Rand8(void) {
     const uint32_t value =
--- /dev/null
+++ b/test/partial_idct_test.cc
@@ -1,0 +1,172 @@
+/*
+ *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "third_party/googletest/src/include/gtest/gtest.h"
+#include "test/acm_random.h"
+#include "test/clear_system_state.h"
+#include "test/register_state_check.h"
+#include "test/util.h"
+
+extern "C" {
+#include "./vp9_rtcd.h"
+#include "vp9/common/vp9_blockd.h"
+#include "vp9/common/vp9_scan.h"
+}
+
+#include "vpx/vpx_integer.h"
+
+using libvpx_test::ACMRandom;
+
+namespace {
+typedef void (*fwd_txfm_t)(const int16_t *in, int16_t *out, int stride);
+typedef void (*inv_txfm_t)(const int16_t *in, uint8_t *out, int stride);
+typedef std::tr1::tuple<inv_txfm_t,
+                        inv_txfm_t,
+                        TX_SIZE, int> partial_itxfm_param_t;
+const int kMaxNumCoeffs = 1024;
+class PartialIDctTest : public ::testing::TestWithParam<partial_itxfm_param_t> {
+ public:
+  virtual ~PartialIDctTest() {}
+  virtual void SetUp() {
+    full_itxfm_ = GET_PARAM(0);
+    partial_itxfm_ = GET_PARAM(1);
+    tx_size_  = GET_PARAM(2);
+    last_nonzero_ = GET_PARAM(3);
+  }
+
+  virtual void TearDown() { libvpx_test::ClearSystemState(); }
+
+ protected:
+  int last_nonzero_;
+  TX_SIZE tx_size_;
+  inv_txfm_t full_itxfm_;
+  inv_txfm_t partial_itxfm_;
+};
+
+TEST_P(PartialIDctTest, ResultsMatch) {
+  ACMRandom rnd(ACMRandom::DeterministicSeed());
+  int size;
+  switch (tx_size_) {
+  case TX_4X4:
+    size = 4;
+    break;
+  case TX_8X8:
+    size = 8;
+    break;
+  case TX_16X16:
+    size = 16;
+    break;
+  case TX_32X32:
+    size = 32;
+    break;
+  default:
+    ASSERT_TRUE(0) << "Wrong Size!";
+    break;
+  }
+  DECLARE_ALIGNED_ARRAY(16, int16_t, test_coef_block1, kMaxNumCoeffs);
+  DECLARE_ALIGNED_ARRAY(16, int16_t, test_coef_block2, kMaxNumCoeffs);
+  DECLARE_ALIGNED_ARRAY(16, uint8_t, dst1, kMaxNumCoeffs);
+  DECLARE_ALIGNED_ARRAY(16, uint8_t, dst2, kMaxNumCoeffs);
+  const int count_test_block = 1000;
+  const int max_coeff = 32766 / 4;
+  const int block_size = size * size;
+  int max_error = 0;
+  for (int i = 0; i < count_test_block; ++i) {
+    // clear out destination buffer
+    memset(dst1, 0, sizeof(*dst1) * block_size);
+    memset(dst2, 0, sizeof(*dst2) * block_size);
+    memset(test_coef_block1, 0, sizeof(*test_coef_block1) * block_size);
+    memset(test_coef_block2, 0, sizeof(*test_coef_block2) * block_size);
+    int max_energy_leftover = max_coeff * max_coeff;
+    for (int j = 0; j < last_nonzero_; ++j) {
+      int16_t coef = static_cast<int16_t>(sqrt(max_energy_leftover) *
+                                          (rnd.Rand16() - 32768) / 65536);
+      max_energy_leftover -= coef * coef;
+      if (max_energy_leftover < 0) {
+        max_energy_leftover = 0;
+        coef = 0;
+      }
+      test_coef_block1[vp9_default_scan_orders[tx_size_].scan[j]] = coef;
+    }
+
+    memcpy(test_coef_block2, test_coef_block1,
+           sizeof(*test_coef_block2) * block_size);
+
+    REGISTER_STATE_CHECK(full_itxfm_(test_coef_block1, dst1, size));
+    REGISTER_STATE_CHECK(partial_itxfm_(test_coef_block2, dst2, size));
+
+    for (int j = 0; j < block_size; ++j) {
+      const int diff = dst1[j] - dst2[j];
+      const int error = diff * diff;
+      if (max_error < error)
+        max_error = error;
+    }
+  }
+
+  EXPECT_EQ(0, max_error)
+      << "Error: partial inverse transform produces different results";
+}
+using std::tr1::make_tuple;
+
+INSTANTIATE_TEST_CASE_P(
+    C, PartialIDctTest,
+    ::testing::Values(
+        make_tuple(vp9_idct32x32_1024_add_c,
+                   vp9_idct32x32_34_add_c,
+                   TX_32X32, 34),
+        make_tuple(vp9_idct32x32_1024_add_c,
+                   vp9_idct32x32_1_add_c,
+                   TX_32X32, 1),
+        make_tuple(vp9_idct16x16_256_add_c,
+                   vp9_idct16x16_10_add_c,
+                   TX_16X16, 10),
+        make_tuple(vp9_idct16x16_256_add_c,
+                   vp9_idct16x16_1_add_c,
+                   TX_16X16, 1),
+        make_tuple(vp9_idct8x8_64_add_c,
+                   vp9_idct8x8_10_add_c,
+                   TX_8X8, 10),
+        make_tuple(vp9_idct8x8_64_add_c,
+                   vp9_idct8x8_1_add_c,
+                   TX_8X8, 1),
+        make_tuple(vp9_idct4x4_16_add_c,
+                   vp9_idct4x4_1_add_c,
+                   TX_4X4, 1)));
+#if HAVE_SSE2
+INSTANTIATE_TEST_CASE_P(
+    SSE2, PartialIDctTest,
+    ::testing::Values(
+        make_tuple(vp9_idct32x32_1024_add_c,
+                   vp9_idct32x32_34_add_sse2,
+                   TX_32X32, 34),
+        make_tuple(vp9_idct32x32_1024_add_c,
+                   vp9_idct32x32_1_add_sse2,
+                   TX_32X32, 1),
+        make_tuple(vp9_idct16x16_256_add_c,
+                   vp9_idct16x16_10_add_sse2,
+                   TX_16X16, 10),
+        make_tuple(vp9_idct16x16_256_add_c,
+                   vp9_idct16x16_1_add_sse2,
+                   TX_16X16, 1),
+        make_tuple(vp9_idct8x8_64_add_c,
+                   vp9_idct8x8_10_add_sse2,
+                   TX_8X8, 10),
+        make_tuple(vp9_idct8x8_64_add_c,
+                   vp9_idct8x8_1_add_sse2,
+                   TX_8X8, 1),
+        make_tuple(vp9_idct4x4_16_add_c,
+                   vp9_idct4x4_1_add_sse2,
+                   TX_4X4, 1)));
+#endif
+}  // namespace
--- a/test/test.mk
+++ b/test/test.mk
@@ -92,6 +92,7 @@
 
 # IDCT test currently depends on FDCT function
 LIBVPX_TEST_SRCS-yes                   += idct8x8_test.cc
+LIBVPX_TEST_SRCS-yes                   += partial_idct_test.cc
 LIBVPX_TEST_SRCS-yes                   += superframe_test.cc
 LIBVPX_TEST_SRCS-yes                   += tile_independence_test.cc
 endif
--- a/vp9/encoder/vp9_onyx_if.c
+++ b/vp9/encoder/vp9_onyx_if.c
@@ -42,8 +42,6 @@
 void vp9_entropy_mode_init();
 void vp9_coef_tree_initialize();
 
-static void set_default_lf_deltas(struct loopfilter *lf);
-
 #define DEFAULT_INTERP_FILTER SWITCHABLE
 
 #define SHARP_FILTER_QTHRESH 0          /* Q threshold for 8-tap sharp filter */
@@ -172,27 +170,15 @@
   }
 }
 
-static void setup_features(VP9_COMMON *cm) {
-  struct loopfilter *const lf = &cm->lf;
+static void reset_segment_features(VP9_COMMON *cm) {
   struct segmentation *const seg = &cm->seg;
 
   // Set up default state for MB feature flags
   seg->enabled = 0;
-
   seg->update_map = 0;
   seg->update_data = 0;
   vpx_memset(seg->tree_probs, 255, sizeof(seg->tree_probs));
-
   vp9_clearall_segfeatures(seg);
-
-  lf->mode_ref_delta_enabled = 0;
-  lf->mode_ref_delta_update = 0;
-  vp9_zero(lf->ref_deltas);
-  vp9_zero(lf->mode_deltas);
-  vp9_zero(lf->last_ref_deltas);
-  vp9_zero(lf->last_mode_deltas);
-
-  set_default_lf_deltas(lf);
 }
 
 static void dealloc_compressor_data(VP9_COMP *cpi) {
@@ -489,23 +475,6 @@
   }
 }
 
-static void set_default_lf_deltas(struct loopfilter *lf) {
-  lf->mode_ref_delta_enabled = 1;
-  lf->mode_ref_delta_update = 1;
-
-  vp9_zero(lf->ref_deltas);
-  vp9_zero(lf->mode_deltas);
-
-  // Test of ref frame deltas
-  lf->ref_deltas[INTRA_FRAME] = 2;
-  lf->ref_deltas[LAST_FRAME] = 0;
-  lf->ref_deltas[GOLDEN_FRAME] = -2;
-  lf->ref_deltas[ALTREF_FRAME] = -2;
-
-  lf->mode_deltas[0] = 0;   // Zero
-  lf->mode_deltas[1] = 0;   // New mv
-}
-
 static void set_rd_speed_thresholds(VP9_COMP *cpi, int mode) {
   SPEED_FEATURES *sf = &cpi->sf;
   int i;
@@ -1219,7 +1188,7 @@
   cm->refresh_frame_context = 1;
   cm->reset_frame_context = 0;
 
-  setup_features(cm);
+  reset_segment_features(cm);
   set_high_precision_mv(cpi, 0);
 
   {
@@ -2955,7 +2924,7 @@
   if (frame_is_intra_only(cm)) {
     vp9_setup_key_frame(cpi);
     // Reset the loop filter deltas and segmentation map.
-    setup_features(cm);
+    reset_segment_features(cm);
 
     // If segmentation is enabled force a map update for key frames.
     if (seg->enabled) {