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-rw-r--r--media/libvpx/libvpx/test/vp9_lossless_test.cc125
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diff --git a/media/libvpx/libvpx/test/vp9_lossless_test.cc b/media/libvpx/libvpx/test/vp9_lossless_test.cc
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+++ b/media/libvpx/libvpx/test/vp9_lossless_test.cc
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2013 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 "third_party/googletest/src/include/gtest/gtest.h"
+
+#include "./vpx_config.h"
+#include "test/codec_factory.h"
+#include "test/encode_test_driver.h"
+#include "test/i420_video_source.h"
+#include "test/util.h"
+#include "test/y4m_video_source.h"
+
+namespace {
+
+const int kMaxPsnr = 100;
+
+class LosslessTest
+ : public ::libvpx_test::EncoderTest,
+ public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> {
+ protected:
+ LosslessTest()
+ : EncoderTest(GET_PARAM(0)), psnr_(kMaxPsnr), nframes_(0),
+ encoding_mode_(GET_PARAM(1)) {}
+
+ virtual ~LosslessTest() {}
+
+ virtual void SetUp() {
+ InitializeConfig();
+ SetMode(encoding_mode_);
+ }
+
+ virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
+ ::libvpx_test::Encoder *encoder) {
+ if (video->frame() == 0) {
+ // Only call Control if quantizer > 0 to verify that using quantizer
+ // alone will activate lossless
+ if (cfg_.rc_max_quantizer > 0 || cfg_.rc_min_quantizer > 0) {
+ encoder->Control(VP9E_SET_LOSSLESS, 1);
+ }
+ }
+ }
+
+ virtual void BeginPassHook(unsigned int /*pass*/) {
+ psnr_ = kMaxPsnr;
+ nframes_ = 0;
+ }
+
+ virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) {
+ if (pkt->data.psnr.psnr[0] < psnr_) psnr_ = pkt->data.psnr.psnr[0];
+ }
+
+ double GetMinPsnr() const { return psnr_; }
+
+ private:
+ double psnr_;
+ unsigned int nframes_;
+ libvpx_test::TestMode encoding_mode_;
+};
+
+TEST_P(LosslessTest, TestLossLessEncoding) {
+ const vpx_rational timebase = { 33333333, 1000000000 };
+ cfg_.g_timebase = timebase;
+ cfg_.rc_target_bitrate = 2000;
+ cfg_.g_lag_in_frames = 25;
+ cfg_.rc_min_quantizer = 0;
+ cfg_.rc_max_quantizer = 0;
+
+ init_flags_ = VPX_CODEC_USE_PSNR;
+
+ // intentionally changed the dimension for better testing coverage
+ libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+ timebase.den, timebase.num, 0, 10);
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ const double psnr_lossless = GetMinPsnr();
+ EXPECT_GE(psnr_lossless, kMaxPsnr);
+}
+
+TEST_P(LosslessTest, TestLossLessEncoding444) {
+ libvpx_test::Y4mVideoSource video("rush_hour_444.y4m", 0, 10);
+
+ cfg_.g_profile = 1;
+ cfg_.g_timebase = video.timebase();
+ cfg_.rc_target_bitrate = 2000;
+ cfg_.g_lag_in_frames = 25;
+ cfg_.rc_min_quantizer = 0;
+ cfg_.rc_max_quantizer = 0;
+
+ init_flags_ = VPX_CODEC_USE_PSNR;
+
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ const double psnr_lossless = GetMinPsnr();
+ EXPECT_GE(psnr_lossless, kMaxPsnr);
+}
+
+TEST_P(LosslessTest, TestLossLessEncodingCtrl) {
+ const vpx_rational timebase = { 33333333, 1000000000 };
+ cfg_.g_timebase = timebase;
+ cfg_.rc_target_bitrate = 2000;
+ cfg_.g_lag_in_frames = 25;
+ // Intentionally set Q > 0, to make sure control can be used to activate
+ // lossless
+ cfg_.rc_min_quantizer = 10;
+ cfg_.rc_max_quantizer = 20;
+
+ init_flags_ = VPX_CODEC_USE_PSNR;
+
+ libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+ timebase.den, timebase.num, 0, 10);
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ const double psnr_lossless = GetMinPsnr();
+ EXPECT_GE(psnr_lossless, kMaxPsnr);
+}
+
+VP9_INSTANTIATE_TEST_SUITE(LosslessTest,
+ ::testing::Values(::libvpx_test::kRealTime,
+ ::libvpx_test::kOnePassGood,
+ ::libvpx_test::kTwoPassGood));
+} // namespace