1 files changed, 164 insertions, 0 deletions
diff --git a/third_party/aom/test/av1_config_test.cc b/third_party/aom/test/av1_config_test.cc
new file mode 100644
index 0000000000..e2f2c53906
--- /dev/null
+++ b/third_party/aom/test/av1_config_test.cc
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+/*
+ * Copyright (c) 2018, 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 <string.h>
+
+#include "common/av1_config.h"
+#include "test/util.h"
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+
+namespace {
+
+//
+// Input buffers containing exactly one Sequence Header OBU.
+//
+// Each buffer is named according to the OBU storage format (Annex-B vs Low
+// Overhead Bitstream Format) and the type of Sequence Header OBU ("Full"
+// Sequence Header OBUs vs Sequence Header OBUs with the
+// reduced_still_image_flag set).
+//
+const uint8_t kAnnexBFullSequenceHeaderObu[] = {
+  0x0c, 0x08, 0x00, 0x00, 0x00, 0x04, 0x45, 0x7e, 0x3e, 0xff, 0xfc, 0xc0, 0x20
+};
+const uint8_t kAnnexBReducedStillImageSequenceHeaderObu[] = {
+  0x08, 0x08, 0x18, 0x22, 0x2b, 0xf1, 0xfe, 0xc0, 0x20
+};
+
+const uint8_t kLobfFullSequenceHeaderObu[] = {
+  0x0a, 0x0b, 0x00, 0x00, 0x00, 0x04, 0x45, 0x7e, 0x3e, 0xff, 0xfc, 0xc0, 0x20
+};
+
+const uint8_t kLobfReducedStillImageSequenceHeaderObu[] = {
+  0x0a, 0x07, 0x18, 0x22, 0x2b, 0xf1, 0xfe, 0xc0, 0x20
+};
+
+const uint8_t kAv1cAllZero[] = { 0, 0, 0, 0 };
+
+// The size of AV1 config when no configOBUs are present at the end of the
+// configuration structure.
+const size_t kAv1cNoConfigObusSize = 4;
+
+bool VerifyAv1c(const uint8_t *const obu_buffer, size_t obu_buffer_length,
+                bool is_annexb) {
+  Av1Config av1_config;
+  memset(&av1_config, 0, sizeof(av1_config));
+  bool parse_ok = get_av1config_from_obu(obu_buffer, obu_buffer_length,
+                                         is_annexb, &av1_config) == 0;
+  if (parse_ok) {
+    EXPECT_EQ(1, av1_config.marker);
+    EXPECT_EQ(1, av1_config.version);
+    EXPECT_EQ(0, av1_config.seq_profile);
+    EXPECT_EQ(0, av1_config.seq_level_idx_0);
+    EXPECT_EQ(0, av1_config.seq_tier_0);
+    EXPECT_EQ(0, av1_config.high_bitdepth);
+    EXPECT_EQ(0, av1_config.twelve_bit);
+    EXPECT_EQ(0, av1_config.monochrome);
+    EXPECT_EQ(1, av1_config.chroma_subsampling_x);
+    EXPECT_EQ(1, av1_config.chroma_subsampling_y);
+    EXPECT_EQ(0, av1_config.chroma_sample_position);
+    EXPECT_EQ(0, av1_config.initial_presentation_delay_present);
+    EXPECT_EQ(0, av1_config.initial_presentation_delay_minus_one);
+  }
+  return parse_ok && ::testing::Test::HasFailure() == false;
+}
+
+TEST(Av1Config, ObuInvalidInputs) {
+  Av1Config av1_config;
+  memset(&av1_config, 0, sizeof(av1_config));
+  ASSERT_EQ(-1, get_av1config_from_obu(NULL, 0, 0, NULL));
+  ASSERT_EQ(-1,
+            get_av1config_from_obu(&kLobfFullSequenceHeaderObu[0], 0, 0, NULL));
+  ASSERT_EQ(
+      -1, get_av1config_from_obu(&kLobfFullSequenceHeaderObu[0],
+                                 sizeof(kLobfFullSequenceHeaderObu), 0, NULL));
+  ASSERT_EQ(-1, get_av1config_from_obu(NULL, sizeof(kLobfFullSequenceHeaderObu),
+                                       0, NULL));
+  ASSERT_EQ(-1, get_av1config_from_obu(&kLobfFullSequenceHeaderObu[0], 0, 0,
+                                       &av1_config));
+}
+
+TEST(Av1Config, ReadInvalidInputs) {
+  Av1Config av1_config;
+  memset(&av1_config, 0, sizeof(av1_config));
+  size_t bytes_read = 0;
+  ASSERT_EQ(-1, read_av1config(NULL, 0, NULL, NULL));
+  ASSERT_EQ(-1, read_av1config(NULL, 4, NULL, NULL));
+  ASSERT_EQ(-1, read_av1config(&kAv1cAllZero[0], 0, NULL, NULL));
+  ASSERT_EQ(-1, read_av1config(&kAv1cAllZero[0], 4, &bytes_read, NULL));
+  ASSERT_EQ(-1, read_av1config(NULL, 4, &bytes_read, &av1_config));
+}
+
+TEST(Av1Config, WriteInvalidInputs) {
+  Av1Config av1_config;
+  memset(&av1_config, 0, sizeof(av1_config));
+  size_t bytes_written = 0;
+  uint8_t av1c_buffer[4] = { 0 };
+  ASSERT_EQ(-1, write_av1config(NULL, 0, NULL, NULL));
+  ASSERT_EQ(-1, write_av1config(&av1_config, 0, NULL, NULL));
+  ASSERT_EQ(-1, write_av1config(&av1_config, 0, &bytes_written, NULL));
+
+  ASSERT_EQ(-1,
+            write_av1config(&av1_config, 0, &bytes_written, &av1c_buffer[0]));
+  ASSERT_EQ(-1, write_av1config(&av1_config, 4, &bytes_written, NULL));
+}
+
+TEST(Av1Config, GetAv1ConfigFromLobfObu) {
+  // Test parsing of a Sequence Header OBU with the reduced_still_picture_header
+  // unset-- aka a full Sequence Header OBU.
+  ASSERT_TRUE(VerifyAv1c(kLobfFullSequenceHeaderObu,
+                         sizeof(kLobfFullSequenceHeaderObu), false));
+
+  // Test parsing of a reduced still image Sequence Header OBU.
+  ASSERT_TRUE(VerifyAv1c(kLobfReducedStillImageSequenceHeaderObu,
+                         sizeof(kLobfReducedStillImageSequenceHeaderObu),
+                         false));
+}
+
+TEST(Av1Config, GetAv1ConfigFromAnnexBObu) {
+  // Test parsing of a Sequence Header OBU with the reduced_still_picture_header
+  // unset-- aka a full Sequence Header OBU.
+  ASSERT_TRUE(VerifyAv1c(kAnnexBFullSequenceHeaderObu,
+                         sizeof(kAnnexBFullSequenceHeaderObu), true));
+
+  // Test parsing of a reduced still image Sequence Header OBU.
+  ASSERT_TRUE(VerifyAv1c(kAnnexBReducedStillImageSequenceHeaderObu,
+                         sizeof(kAnnexBReducedStillImageSequenceHeaderObu),
+                         true));
+}
+
+TEST(Av1Config, ReadWriteConfig) {
+  Av1Config av1_config;
+  memset(&av1_config, 0, sizeof(av1_config));
+
+  // Test writing out the AV1 config.
+  size_t bytes_written = 0;
+  uint8_t av1c_buffer[4] = { 0 };
+  ASSERT_EQ(0, write_av1config(&av1_config, sizeof(av1c_buffer), &bytes_written,
+                               &av1c_buffer[0]));
+  ASSERT_EQ(kAv1cNoConfigObusSize, bytes_written);
+  for (size_t i = 0; i < kAv1cNoConfigObusSize; ++i) {
+    ASSERT_EQ(kAv1cAllZero[i], av1c_buffer[i])
+        << "Mismatch in output Av1Config at offset=" << i;
+  }
+
+  // Test reading the AV1 config.
+  size_t bytes_read = 0;
+  ASSERT_EQ(0, read_av1config(&kAv1cAllZero[0], sizeof(kAv1cAllZero),
+                              &bytes_read, &av1_config));
+  ASSERT_EQ(kAv1cNoConfigObusSize, bytes_read);
+  ASSERT_EQ(0, write_av1config(&av1_config, sizeof(av1c_buffer), &bytes_written,
+                               &av1c_buffer[0]));
+  for (size_t i = 0; i < kAv1cNoConfigObusSize; ++i) {
+    ASSERT_EQ(kAv1cAllZero[i], av1c_buffer[i])
+        << "Mismatch in output Av1Config at offset=" << i;
+  }
+}
+
+}  // namespace