1 files changed, 93 insertions, 0 deletions
diff --git a/third_party/aom/test/force_key_frame_test.cc b/third_party/aom/test/force_key_frame_test.cc
new file mode 100644
index 0000000000..2b85d26530
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+++ b/third_party/aom/test/force_key_frame_test.cc
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2022, 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.
+ */
+
+// Tests for https://crbug.com/aomedia/3327.
+//
+// In good-quality mode, set cfg.g_lag_in_frames to 1 or 0 and encode two
+// frames in one-pass mode. Pass AOM_EFLAG_FORCE_KF to the second
+// aom_codec_encode() call. Both frames should be encoded as key frames.
+
+#include <memory>
+
+#include "aom/aomcx.h"
+#include "aom/aom_encoder.h"
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+
+namespace {
+
+void TestOnePassMode(unsigned int lag_in_frames) {
+  // A buffer of gray samples of size 128x128, YUV 4:2:0.
+  constexpr size_t kImageDataSize = 128 * 128 + 2 * 64 * 64;
+  std::unique_ptr<unsigned char[]> img_data(new unsigned char[kImageDataSize]);
+  ASSERT_NE(img_data, nullptr);
+  memset(img_data.get(), 128, kImageDataSize);
+
+  aom_codec_iface_t *iface = aom_codec_av1_cx();
+  aom_codec_enc_cfg_t cfg;
+  ASSERT_EQ(AOM_CODEC_OK,
+            aom_codec_enc_config_default(iface, &cfg, AOM_USAGE_GOOD_QUALITY));
+  cfg.g_w = 128;
+  cfg.g_h = 128;
+  cfg.g_pass = AOM_RC_ONE_PASS;
+  cfg.g_lag_in_frames = lag_in_frames;
+  aom_codec_ctx_t enc;
+  EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_init(&enc, iface, &cfg, 0));
+
+  aom_image_t img;
+  EXPECT_EQ(&img,
+            aom_img_wrap(&img, AOM_IMG_FMT_I420, 128, 128, 1, img_data.get()));
+
+  aom_codec_iter_t iter;
+  const aom_codec_cx_pkt_t *pkt;
+  int frame_count = 0;
+
+  EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img, 0, 1, 0));
+
+  iter = nullptr;
+  while ((pkt = aom_codec_get_cx_data(&enc, &iter)) != nullptr) {
+    ASSERT_EQ(pkt->kind, AOM_CODEC_CX_FRAME_PKT);
+    EXPECT_NE(pkt->data.frame.flags & AOM_FRAME_IS_KEY, 0u)
+        << "frame " << frame_count;
+    frame_count++;
+  }
+
+  EXPECT_EQ(AOM_CODEC_OK,
+            aom_codec_encode(&enc, &img, 1, 1, AOM_EFLAG_FORCE_KF));
+
+  iter = nullptr;
+  while ((pkt = aom_codec_get_cx_data(&enc, &iter)) != nullptr) {
+    ASSERT_EQ(pkt->kind, AOM_CODEC_CX_FRAME_PKT);
+    EXPECT_NE(pkt->data.frame.flags & AOM_FRAME_IS_KEY, 0u)
+        << "frame " << frame_count;
+    frame_count++;
+  }
+
+  EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, nullptr, 0, 0, 0));
+
+  iter = nullptr;
+  while ((pkt = aom_codec_get_cx_data(&enc, &iter)) != nullptr) {
+    ASSERT_EQ(pkt->kind, AOM_CODEC_CX_FRAME_PKT);
+    EXPECT_NE(pkt->data.frame.flags & AOM_FRAME_IS_KEY, 0u)
+        << "frame " << frame_count;
+    frame_count++;
+  }
+
+  EXPECT_EQ(frame_count, 2);
+  EXPECT_EQ(AOM_CODEC_OK, aom_codec_destroy(&enc));
+}
+
+TEST(ForceKeyFrameTest, OnePassModeLag0) { TestOnePassMode(0); }
+
+TEST(ForceKeyFrameTest, OnePassModeLag1) { TestOnePassMode(1); }
+
+TEST(ForceKeyFrameTest, OnePassModeLag2) { TestOnePassMode(2); }
+
+}  // namespace