Import aom library

This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

1 files changed, 200 insertions, 0 deletions

diff --git a/third_party/aom/test/av1_ext_tile_test.cc b/third_party/aom/test/av1_ext_tile_test.cc
new file mode 100644
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+++ b/third_party/aom/test/av1_ext_tile_test.cc
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+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <assert.h>
+#include <string>
+#include <vector>
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+#include "test/codec_factory.h"
+#include "test/encode_test_driver.h"
+#include "test/i420_video_source.h"
+#include "test/md5_helper.h"
+#include "test/util.h"
+
+namespace {
+// The number of frames to be encoded/decoded
+const int kLimit = 8;
+// Skip 1 frame to check the frame decoding independency.
+const int kSkip = 5;
+const int kTileSize = 1;
+const int kTIleSizeInPixels = (kTileSize << 6);
+// Fake width and height so that they can be multiples of the tile size.
+const int kImgWidth = 704;
+const int kImgHeight = 576;
+
+// This test tests "tile_encoding_mode = TILE_VR" case. The TILE_NORMAL case is
+// tested by the tile_independence test.
+class AV1ExtTileTest
+    : public ::libaom_test::EncoderTest,
+      public ::libaom_test::CodecTestWith2Params<libaom_test::TestMode, int> {
+ protected:
+  AV1ExtTileTest()
+      : EncoderTest(GET_PARAM(0)), encoding_mode_(GET_PARAM(1)),
+        set_cpu_used_(GET_PARAM(2)) {
+    init_flags_ = AOM_CODEC_USE_PSNR;
+    aom_codec_dec_cfg_t cfg = aom_codec_dec_cfg_t();
+    cfg.w = kImgWidth;
+    cfg.h = kImgHeight;
+
+    decoder_ = codec_->CreateDecoder(cfg, 0);
+    decoder_->Control(AV1_SET_DECODE_TILE_ROW, -1);
+    decoder_->Control(AV1_SET_DECODE_TILE_COL, -1);
+
+    // Allocate buffer to store tile image.
+    aom_img_alloc(&tile_img_, AOM_IMG_FMT_I420, kImgWidth, kImgHeight, 32);
+
+    md5_.clear();
+    tile_md5_.clear();
+  }
+
+  virtual ~AV1ExtTileTest() {
+    aom_img_free(&tile_img_);
+    delete decoder_;
+  }
+
+  virtual void SetUp() {
+    InitializeConfig();
+    SetMode(encoding_mode_);
+
+    cfg_.g_lag_in_frames = 0;
+    cfg_.rc_end_usage = AOM_VBR;
+    cfg_.g_error_resilient = 1;
+
+    cfg_.rc_max_quantizer = 56;
+    cfg_.rc_min_quantizer = 0;
+  }
+
+  virtual void PreEncodeFrameHook(::libaom_test::VideoSource *video,
+                                  ::libaom_test::Encoder *encoder) {
+    if (video->frame() == 0) {
+      // Encode setting
+      encoder->Control(AOME_SET_CPUUSED, set_cpu_used_);
+      encoder->Control(AOME_SET_ENABLEAUTOALTREF, 0);
+      encoder->Control(AV1E_SET_FRAME_PARALLEL_DECODING, 1);
+
+      // The tile size is 64x64.
+      encoder->Control(AV1E_SET_TILE_COLUMNS, kTileSize);
+      encoder->Control(AV1E_SET_TILE_ROWS, kTileSize);
+      encoder->Control(AV1E_SET_TILE_ENCODING_MODE, 1);  // TILE_VR
+#if CONFIG_EXT_PARTITION
+      // Always use 64x64 max partition.
+      encoder->Control(AV1E_SET_SUPERBLOCK_SIZE, AOM_SUPERBLOCK_SIZE_64X64);
+#endif
+    }
+
+    if (video->frame() == 1) {
+      frame_flags_ =
+          AOM_EFLAG_NO_UPD_LAST | AOM_EFLAG_NO_UPD_GF | AOM_EFLAG_NO_UPD_ARF;
+    }
+  }
+
+  virtual void DecompressedFrameHook(const aom_image_t &img,
+                                     aom_codec_pts_t pts) {
+    // Skip 1 already decoded frame to be consistent with the decoder in this
+    // test.
+    if (pts == (aom_codec_pts_t)kSkip) return;
+
+    // Calculate MD5 as the reference.
+    ::libaom_test::MD5 md5_res;
+    md5_res.Add(&img);
+    md5_.push_back(md5_res.Get());
+  }
+
+  virtual void FramePktHook(const aom_codec_cx_pkt_t *pkt) {
+    // Skip decoding 1 frame.
+    if (pkt->data.frame.pts == (aom_codec_pts_t)kSkip) return;
+
+    bool IsLastFrame = (pkt->data.frame.pts == (aom_codec_pts_t)(kLimit - 1));
+
+    // Decode the first (kLimit - 1) frames as whole frame, and decode the last
+    // frame in single tiles.
+    for (int r = 0; r < kImgHeight / kTIleSizeInPixels; ++r) {
+      for (int c = 0; c < kImgWidth / kTIleSizeInPixels; ++c) {
+        if (!IsLastFrame) {
+          decoder_->Control(AV1_SET_DECODE_TILE_ROW, -1);
+          decoder_->Control(AV1_SET_DECODE_TILE_COL, -1);
+        } else {
+          decoder_->Control(AV1_SET_DECODE_TILE_ROW, r);
+          decoder_->Control(AV1_SET_DECODE_TILE_COL, c);
+        }
+
+        const aom_codec_err_t res = decoder_->DecodeFrame(
+            reinterpret_cast<uint8_t *>(pkt->data.frame.buf),
+            pkt->data.frame.sz);
+        if (res != AOM_CODEC_OK) {
+          abort_ = true;
+          ASSERT_EQ(AOM_CODEC_OK, res);
+        }
+        const aom_image_t *img = decoder_->GetDxData().Next();
+
+        if (!IsLastFrame) {
+          if (img) {
+            ::libaom_test::MD5 md5_res;
+            md5_res.Add(img);
+            tile_md5_.push_back(md5_res.Get());
+          }
+          break;
+        }
+
+        const int kMaxMBPlane = 3;
+        for (int plane = 0; plane < kMaxMBPlane; ++plane) {
+          const int shift = (plane == 0) ? 0 : 1;
+          int tile_height = kTIleSizeInPixels >> shift;
+          int tile_width = kTIleSizeInPixels >> shift;
+
+          for (int tr = 0; tr < tile_height; ++tr) {
+            memcpy(tile_img_.planes[plane] +
+                       tile_img_.stride[plane] * (r * tile_height + tr) +
+                       c * tile_width,
+                   img->planes[plane] + img->stride[plane] * tr, tile_width);
+          }
+        }
+      }
+
+      if (!IsLastFrame) break;
+    }
+
+    if (IsLastFrame) {
+      ::libaom_test::MD5 md5_res;
+      md5_res.Add(&tile_img_);
+      tile_md5_.push_back(md5_res.Get());
+    }
+  }
+
+  ::libaom_test::TestMode encoding_mode_;
+  int set_cpu_used_;
+  ::libaom_test::Decoder *decoder_;
+  aom_image_t tile_img_;
+  std::vector<std::string> md5_;
+  std::vector<std::string> tile_md5_;
+};
+
+TEST_P(AV1ExtTileTest, DecoderResultTest) {
+  ::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", kImgWidth,
+                                       kImgHeight, 30, 1, 0, kLimit);
+  cfg_.rc_target_bitrate = 500;
+  cfg_.g_error_resilient = AOM_ERROR_RESILIENT_DEFAULT;
+  cfg_.g_lag_in_frames = 0;
+  cfg_.g_threads = 1;
+
+  // Tile encoding
+  init_flags_ = AOM_CODEC_USE_PSNR;
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+  // Compare to check if two vectors are equal.
+  ASSERT_EQ(md5_, tile_md5_);
+}
+
+AV1_INSTANTIATE_TEST_CASE(
+    // Now only test 2-pass mode.
+    AV1ExtTileTest, ::testing::Values(::libaom_test::kTwoPassGood),
+    ::testing::Range(0, 4));
+}  // namespace