Import aom library

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

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

third_party/aom/test/superframe_test.cc

@@ -0,0 +1,141 @@
+/*
+ * 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 <climits>
+#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/util.h"
+
+namespace {
+
+const int kTestMode = 0;
+const int kTileCols = 1;
+const int kTileRows = 2;
+
+typedef std::tr1::tuple<libaom_test::TestMode, int, int> SuperframeTestParam;
+
+class SuperframeTest
+    : public ::libaom_test::EncoderTest,
+      public ::libaom_test::CodecTestWithParam<SuperframeTestParam> {
+ protected:
+  SuperframeTest()
+      : EncoderTest(GET_PARAM(0)), modified_buf_(NULL), last_sf_pts_(0) {}
+  virtual ~SuperframeTest() {}
+
+  virtual void SetUp() {
+    InitializeConfig();
+    const SuperframeTestParam input = GET_PARAM(1);
+    const libaom_test::TestMode mode = std::tr1::get<kTestMode>(input);
+    SetMode(mode);
+    sf_count_ = 0;
+    sf_count_max_ = INT_MAX;
+    n_tile_cols_ = std::tr1::get<kTileCols>(input);
+    n_tile_rows_ = std::tr1::get<kTileRows>(input);
+  }
+
+  virtual void TearDown() { delete[] modified_buf_; }
+
+  virtual void PreEncodeFrameHook(libaom_test::VideoSource *video,
+                                  libaom_test::Encoder *encoder) {
+    if (video->frame() == 1) {
+      encoder->Control(AOME_SET_ENABLEAUTOALTREF, 1);
+      encoder->Control(AOME_SET_CPUUSED, 2);
+      encoder->Control(AV1E_SET_TILE_COLUMNS, n_tile_cols_);
+      encoder->Control(AV1E_SET_TILE_ROWS, n_tile_rows_);
+#if CONFIG_LOOPFILTERING_ACROSS_TILES
+      encoder->Control(AV1E_SET_TILE_LOOPFILTER, 0);
+#endif  // CONFIG_LOOPFILTERING_ACROSS_TILES
+    }
+  }
+
+  virtual const aom_codec_cx_pkt_t *MutateEncoderOutputHook(
+      const aom_codec_cx_pkt_t *pkt) {
+    if (pkt->kind != AOM_CODEC_CX_FRAME_PKT) return pkt;
+
+    const uint8_t *buffer = reinterpret_cast<uint8_t *>(pkt->data.frame.buf);
+    const uint8_t marker = buffer[pkt->data.frame.sz - 1];
+    const int frames = (marker & 0x7) + 1;
+    const int mag = ((marker >> 3) & 3) + 1;
+    const unsigned int index_sz = 2 + mag * (frames - 1);
+    if ((marker & 0xe0) == 0xc0 && pkt->data.frame.sz >= index_sz &&
+        buffer[pkt->data.frame.sz - index_sz] == marker) {
+      // frame is a superframe. strip off the index.
+      if (modified_buf_) delete[] modified_buf_;
+      modified_buf_ = new uint8_t[pkt->data.frame.sz - index_sz];
+      memcpy(modified_buf_, pkt->data.frame.buf, pkt->data.frame.sz - index_sz);
+      modified_pkt_ = *pkt;
+      modified_pkt_.data.frame.buf = modified_buf_;
+      modified_pkt_.data.frame.sz -= index_sz;
+
+      sf_count_++;
+      last_sf_pts_ = pkt->data.frame.pts;
+      return &modified_pkt_;
+    }
+
+    // Make sure we do a few frames after the last SF
+    abort_ |=
+        sf_count_ > sf_count_max_ && pkt->data.frame.pts - last_sf_pts_ >= 5;
+    return pkt;
+  }
+
+  int sf_count_;
+  int sf_count_max_;
+  aom_codec_cx_pkt_t modified_pkt_;
+  uint8_t *modified_buf_;
+  aom_codec_pts_t last_sf_pts_;
+
+ private:
+  int n_tile_cols_;
+  int n_tile_rows_;
+};
+
+TEST_P(SuperframeTest, TestSuperframeIndexIsOptional) {
+  sf_count_max_ = 0;  // early exit on successful test.
+  cfg_.g_lag_in_frames = 25;
+
+  ::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+                                       30, 1, 0, 40);
+  ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+#if CONFIG_EXT_REFS
+  // NOTE: The use of BWDREF_FRAME will enable the coding of more non-show
+  //       frames besides ALTREF_FRAME.
+  EXPECT_GE(sf_count_, 1);
+#else
+  EXPECT_EQ(sf_count_, 1);
+#endif  // CONFIG_EXT_REFS
+}
+
+// The superframe index is currently mandatory with both ANS and DAALA_EC due
+// to the decoder starting at the end of the buffer.
+#if CONFIG_EXT_TILE
+// Single tile does not work with ANS (see comment above).
+#if CONFIG_ANS || CONFIG_DAALA_EC
+const int tile_col_values[] = { 1, 2 };
+#else
+const int tile_col_values[] = { 1, 2, 32 };
+#endif
+const int tile_row_values[] = { 1, 2, 32 };
+AV1_INSTANTIATE_TEST_CASE(
+    SuperframeTest,
+    ::testing::Combine(::testing::Values(::libaom_test::kTwoPassGood),
+                       ::testing::ValuesIn(tile_col_values),
+                       ::testing::ValuesIn(tile_row_values)));
+#else
+#if !CONFIG_ANS && !CONFIG_DAALA_EC
+AV1_INSTANTIATE_TEST_CASE(
+    SuperframeTest,
+    ::testing::Combine(::testing::Values(::libaom_test::kTwoPassGood),
+                       ::testing::Values(0), ::testing::Values(0)));
+#endif  // !CONFIG_ANS
+#endif  // CONFIG_EXT_TILE
+}  // namespace