vp9-svc: Add unittest for svc-decoding.

To test the VP9_DECODE_SVC_SPATIAL_LAYER decoder control
introduced in 86b0042.

Change-Id: I3d164a41d7bbab14c0aee80fd890870704a18f6e

test/decode_svc_test.cc

@@ -0,0 +1,124 @@
+/*
+ *  Copyright (c) 2016 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 <string>
+
+#include "test/codec_factory.h"
+#include "test/decode_test_driver.h"
+#include "test/ivf_video_source.h"
+#include "test/test_vectors.h"
+#include "test/util.h"
+
+namespace {
+
+const unsigned int kNumFrames = 19;
+
+class DecodeSvcTest : public ::libvpx_test::DecoderTest,
+                      public ::libvpx_test::CodecTestWithParam<const char *> {
+ protected:
+  DecodeSvcTest() : DecoderTest(GET_PARAM(::libvpx_test::kCodecFactoryParam)) {}
+  virtual ~DecodeSvcTest() {}
+
+  virtual void PreDecodeFrameHook(
+      const libvpx_test::CompressedVideoSource &video,
+      libvpx_test::Decoder *decoder) {
+    if (video.frame_number() == 0)
+      decoder->Control(VP9_DECODE_SVC_SPATIAL_LAYER, spatial_layer_);
+  }
+
+  virtual void DecompressedFrameHook(const vpx_image_t &img,
+                                     const unsigned int frame_number) {
+    ASSERT_EQ(img.d_w, width_);
+    ASSERT_EQ(img.d_h, height_);
+    total_frames_ = frame_number;
+  }
+
+  int spatial_layer_;
+  unsigned int width_;
+  unsigned int height_;
+  unsigned int total_frames_;
+};
+
+// SVC test vector is 1280x720, with 3 spatial layers, and 20 frames.
+
+// Decode the SVC test vector, which has 3 spatial layers, and decode up to
+// spatial layer 0. Verify the resolution of each decoded frame and the total
+// number of frames decoded. This results in 1/4x1/4 resolution (320x180).
+TEST_P(DecodeSvcTest, DecodeSvcTestUpToSpatialLayer0) {
+  const std::string filename = GET_PARAM(1);
+  testing::internal::scoped_ptr<libvpx_test::CompressedVideoSource> video;
+  video.reset(new libvpx_test::IVFVideoSource(filename));
+  ASSERT_TRUE(video.get() != NULL);
+  video->Init();
+  total_frames_ = 0;
+  spatial_layer_ = 0;
+  width_ = 320;
+  height_ = 180;
+  ASSERT_NO_FATAL_FAILURE(RunLoop(video.get()));
+  ASSERT_EQ(total_frames_, kNumFrames);
+}
+
+// Decode the SVC test vector, which has 3 spatial layers, and decode up to
+// spatial layer 1. Verify the resolution of each decoded frame and the total
+// number of frames decoded. This results in 1/2x1/2 resolution (640x360).
+TEST_P(DecodeSvcTest, DecodeSvcTestUpToSpatialLayer1) {
+  const std::string filename = GET_PARAM(1);
+  testing::internal::scoped_ptr<libvpx_test::CompressedVideoSource> video;
+  video.reset(new libvpx_test::IVFVideoSource(filename));
+  ASSERT_TRUE(video.get() != NULL);
+  video->Init();
+  total_frames_ = 0;
+  spatial_layer_ = 1;
+  width_ = 640;
+  height_ = 360;
+  ASSERT_NO_FATAL_FAILURE(RunLoop(video.get()));
+  ASSERT_EQ(total_frames_, kNumFrames);
+}
+
+// Decode the SVC test vector, which has 3 spatial layers, and decode up to
+// spatial layer 2. Verify the resolution of each decoded frame and the total
+// number of frames decoded. This results in the full resolution (1280x720).
+TEST_P(DecodeSvcTest, DecodeSvcTestUpToSpatialLayer2) {
+  const std::string filename = GET_PARAM(1);
+  testing::internal::scoped_ptr<libvpx_test::CompressedVideoSource> video;
+  video.reset(new libvpx_test::IVFVideoSource(filename));
+  ASSERT_TRUE(video.get() != NULL);
+  video->Init();
+  total_frames_ = 0;
+  spatial_layer_ = 2;
+  width_ = 1280;
+  height_ = 720;
+  ASSERT_NO_FATAL_FAILURE(RunLoop(video.get()));
+  ASSERT_EQ(total_frames_, kNumFrames);
+}
+
+// Decode the SVC test vector, which has 3 spatial layers, and decode up to
+// spatial layer 10. Verify the resolution of each decoded frame and the total
+// number of frames decoded. This is beyond the number of spatial layers, so
+// the decoding should result in the full resolution (1280x720).
+TEST_P(DecodeSvcTest, DecodeSvcTestUpToSpatialLayer10) {
+  const std::string filename = GET_PARAM(1);
+  testing::internal::scoped_ptr<libvpx_test::CompressedVideoSource> video;
+  video.reset(new libvpx_test::IVFVideoSource(filename));
+  ASSERT_TRUE(video.get() != NULL);
+  video->Init();
+  total_frames_ = 0;
+  spatial_layer_ = 10;
+  width_ = 1280;
+  height_ = 720;
+  ASSERT_NO_FATAL_FAILURE(RunLoop(video.get()));
+  ASSERT_EQ(total_frames_, kNumFrames);
+}
+
+VP9_INSTANTIATE_TEST_CASE(
+    DecodeSvcTest, ::testing::ValuesIn(libvpx_test::kVP9TestVectorsSvc,
+                                       libvpx_test::kVP9TestVectorsSvc +
+                                           libvpx_test::kNumVP9TestVectorsSvc));
+}  // namespace

test/test-data.mk

@@ -869,3 +869,5 @@ LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-21-resize_inter_1920x1080_7_1-2
 LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-21-resize_inter_1920x1080_7_1-2.webm.md5
 LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-21-resize_inter_1920x1080_7_3-4.webm
 LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-21-resize_inter_1920x1080_7_3-4.webm.md5
+LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-22-svc_1280x720_3.ivf
+LIBVPX_TEST_DATA-$(CONFIG_VP9_DECODER) += vp90-2-22-svc_1280x720_3.ivf.md5

test/test-data.sha1

@@ -842,3 +842,5 @@ a000d568431d07379dd5a8ec066061c07e560b47 *invalid-vp90-2-00-quantizer-63.ivf.kf_
 1e472baaf5f6113459f0399a38a5a5e68d17799d *invalid-vp90-2-10-show-existing-frame.webm.ivf.s180315_r01-05_b6-.ivf.res
 70057835bf29d14e66699ce5f022df2551fb6b37 *invalid-crbug-629481.webm
 5d9474c0309b7ca09a182d888f73b37a8fe1362c *invalid-crbug-629481.webm.res
+7602e00378161ca36ae93cc6ee12dd30b5ba1e1d *vp90-2-22-svc_1280x720_3.ivf
+02e53e3eefbf25ec0929047fe50876acdeb040bd *vp90-2-22-svc_1280x720_3.ivf.md5

test/test.mk

@@ -35,6 +35,7 @@ LIBVPX_TEST_SRCS-$(CONFIG_VP8_ENCODER) += cq_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP8_ENCODER) += keyframe_test.cc
 
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += byte_alignment_test.cc
+LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += decode_svc_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += external_frame_buffer_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += user_priv_test.cc
 LIBVPX_TEST_SRCS-$(CONFIG_VP9_DECODER) += vp9_frame_parallel_test.cc

test/test_vectors.cc

@@ -373,7 +373,9 @@ const char *const kVP9TestVectors[] = {
   "vp90-2-20-big_superframe-02.webm",
   RESIZE_TEST_VECTORS
 };
+const char *const kVP9TestVectorsSvc[] = { "vp90-2-22-svc_1280x720_3.ivf" };
 const int kNumVP9TestVectors = NELEMENTS(kVP9TestVectors);
+const int kNumVP9TestVectorsSvc = NELEMENTS(kVP9TestVectorsSvc);
 const char *const kVP9TestVectorsResize[] = { RESIZE_TEST_VECTORS };
 const int kNumVP9TestVectorsResize = NELEMENTS(kVP9TestVectorsResize);
 #undef RESIZE_TEST_VECTORS

test/test_vectors.h

@@ -23,6 +23,8 @@ extern const char *const kVP8TestVectors[];
 #if CONFIG_VP9_DECODER
 extern const int kNumVP9TestVectors;
 extern const char *const kVP9TestVectors[];
+extern const int kNumVP9TestVectorsSvc;
+extern const char *const kVP9TestVectorsSvc[];
 extern const int kNumVP9TestVectorsResize;
 extern const char *const kVP9TestVectorsResize[];
 #endif  // CONFIG_VP9_DECODER