ref: b0d8a75e481dfb08d0125a3c1e26d116f44c0979
parent: 0f9760ab6f2cfbf7802ae5de305b7b94da7a8f02
author: Yunqing Wang <[email protected]>
date: Fri Jan 20 04:15:15 EST 2017
Add the multi-threaded first pass encoder unit test Added the multi-threaded first pass encoder unit test in VP9. The test is to check if the new multi-threaded first pass encoder(namely, new-mt = 1) still generates matching stats. In the unit test, the new-mt mode will be turned on once the multi-threaded first pass implementation is checked in. Change-Id: Ic21bb1a55c454f024cfd2b397a4c148cfe638218
--- a/test/encode_test_driver.cc
+++ b/test/encode_test_driver.cc
@@ -226,6 +226,8 @@
case VPX_CODEC_PSNR_PKT: PSNRPktHook(pkt); break;
+ case VPX_CODEC_STATS_PKT: StatsPktHook(pkt); break;
+
default: break;
}
}
--- a/test/encode_test_driver.h
+++ b/test/encode_test_driver.h
@@ -218,6 +218,9 @@
// Hook to be called on every PSNR packet.
virtual void PSNRPktHook(const vpx_codec_cx_pkt_t * /*pkt*/) {}+ // Hook to be called on every first pass stats packet.
+ virtual void StatsPktHook(const vpx_codec_cx_pkt_t * /*pkt*/) {}+
// Hook to determine whether the encode loop should continue.
virtual bool Continue() const {return !(::testing::Test::HasFatalFailure() || abort_);
--- a/test/vp9_ethread_test.cc
+++ b/test/vp9_ethread_test.cc
@@ -16,8 +16,170 @@
#include "test/md5_helper.h"
#include "test/util.h"
#include "test/y4m_video_source.h"
+#include "vp9/encoder/vp9_firstpass.h"
namespace {+// FIRSTPASS_STATS struct:
+// {+// 23 double members;
+// 1 int64_t member;
+// }
+// Whenever FIRSTPASS_STATS struct is modified, the following constants need to
+// be revisited.
+const int kDbl = 23;
+const int kInt = 1;
+const size_t kFirstPassStatsSz = kDbl * sizeof(double) + kInt * sizeof(int64_t);
+
+class VPxFirstPassEncoderThreadTest
+ : public ::libvpx_test::EncoderTest,
+ public ::libvpx_test::CodecTestWith2Params<libvpx_test::TestMode, int> {+ protected:
+ VPxFirstPassEncoderThreadTest()
+ : EncoderTest(GET_PARAM(0)), encoder_initialized_(false), tiles_(0),
+ encoding_mode_(GET_PARAM(1)), set_cpu_used_(GET_PARAM(2)) {+ init_flags_ = VPX_CODEC_USE_PSNR;
+
+ new_mt_mode_ = 1;
+ first_pass_only_ = 1;
+ firstpass_stats_.buf = NULL;
+ firstpass_stats_.sz = 0;
+ }
+ virtual ~VPxFirstPassEncoderThreadTest() { free(firstpass_stats_.buf); }+
+ virtual void SetUp() {+ InitializeConfig();
+ SetMode(encoding_mode_);
+
+ cfg_.g_lag_in_frames = 3;
+ cfg_.rc_end_usage = VPX_VBR;
+ cfg_.rc_2pass_vbr_minsection_pct = 5;
+ cfg_.rc_2pass_vbr_maxsection_pct = 2000;
+ cfg_.rc_max_quantizer = 56;
+ cfg_.rc_min_quantizer = 0;
+ }
+
+ virtual void BeginPassHook(unsigned int /*pass*/) {+ encoder_initialized_ = false;
+ abort_ = false;
+ }
+
+ virtual void EndPassHook() {+ // For first pass stats test, only run first pass encoder.
+ if (first_pass_only_ && cfg_.g_pass == VPX_RC_FIRST_PASS)
+ abort_ |= first_pass_only_;
+ }
+
+ virtual void PreEncodeFrameHook(::libvpx_test::VideoSource * /*video*/,
+ ::libvpx_test::Encoder *encoder) {+ if (!encoder_initialized_) {+ // Encode in 2-pass mode.
+ encoder->Control(VP9E_SET_TILE_COLUMNS, tiles_);
+ encoder->Control(VP8E_SET_CPUUSED, set_cpu_used_);
+ encoder->Control(VP8E_SET_ENABLEAUTOALTREF, 1);
+ encoder->Control(VP8E_SET_ARNR_MAXFRAMES, 7);
+ encoder->Control(VP8E_SET_ARNR_STRENGTH, 5);
+ encoder->Control(VP8E_SET_ARNR_TYPE, 3);
+ encoder->Control(VP9E_SET_FRAME_PARALLEL_DECODING, 0);
+
+ // For now, new_mt_mode only works for 2-pass encoding.
+ // Enable this once the fp mt patch is checked in.
+ // if (encoding_mode_ == ::libvpx_test::kTwoPassGood)
+ // encoder->Control(VP9E_SET_NEW_MT, new_mt_mode_);
+
+ encoder_initialized_ = true;
+ }
+ }
+
+ virtual void StatsPktHook(const vpx_codec_cx_pkt_t *pkt) {+ const uint8_t *const pkt_buf =
+ reinterpret_cast<uint8_t *>(pkt->data.twopass_stats.buf);
+ const size_t pkt_size = pkt->data.twopass_stats.sz;
+
+ // First pass stats size equals sizeof(FIRSTPASS_STATS)
+ EXPECT_EQ(pkt_size, kFirstPassStatsSz)
+ << "Error: First pass stats size doesn't equal kFirstPassStatsSz";
+
+ firstpass_stats_.buf =
+ realloc(firstpass_stats_.buf, firstpass_stats_.sz + pkt_size);
+ memcpy((uint8_t *)firstpass_stats_.buf + firstpass_stats_.sz, pkt_buf,
+ pkt_size);
+ firstpass_stats_.sz += pkt_size;
+ }
+
+ bool encoder_initialized_;
+ int tiles_;
+ ::libvpx_test::TestMode encoding_mode_;
+ int set_cpu_used_;
+ int new_mt_mode_;
+ int first_pass_only_;
+ vpx_fixed_buf_t firstpass_stats_;
+};
+
+static void compare_fp_stats(vpx_fixed_buf_t *fp_stats) {+ // fp_stats consists of 2 set of first pass encoding stats. These 2 set of
+ // stats are compared to check if the stats match or at least are very close.
+ FIRSTPASS_STATS *stats1 = reinterpret_cast<FIRSTPASS_STATS *>(fp_stats->buf);
+ int nframes_ = (int)(fp_stats->sz / sizeof(FIRSTPASS_STATS));
+ FIRSTPASS_STATS *stats2 = stats1 + nframes_ / 2;
+ int i, j;
+
+ // The total stats are also output and included in the first pass stats. Here
+ // ignore that in the comparison.
+ for (i = 0; i < (nframes_ / 2 - 1); ++i) {+ const double *frame_stats1 = reinterpret_cast<double *>(stats1);
+ const double *frame_stats2 = reinterpret_cast<double *>(stats2);
+
+ for (j = 0; j < kDbl; ++j) {+ EXPECT_LE(fabs(*frame_stats1 - *frame_stats2),
+ fabs(*frame_stats1) / 1000.0);
+ frame_stats1++;
+ frame_stats2++;
+ }
+
+ stats1++;
+ stats2++;
+ }
+
+ // Reset firstpass_stats_ to 0.
+ memset((uint8_t *)fp_stats->buf, 0, fp_stats->sz);
+ fp_stats->sz = 0;
+}
+
+TEST_P(VPxFirstPassEncoderThreadTest, FirstPassStatsTest) {+ ::libvpx_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 50);+
+ first_pass_only_ = 1;
+ cfg_.rc_target_bitrate = 1000;
+
+ // Test new_mt_mode: 0 vs 1 (threads = 1, tiles_ = 0)
+ tiles_ = 0;
+ cfg_.g_threads = 1;
+
+ new_mt_mode_ = 0;
+ init_flags_ = VPX_CODEC_USE_PSNR;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ new_mt_mode_ = 1;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ // Compare to check if using or not using new-mt generates matching stats.
+ compare_fp_stats(&firstpass_stats_);
+
+ // Test multi-threads: single thread vs 4 threads
+ new_mt_mode_ = 1;
+ tiles_ = 2;
+
+ cfg_.g_threads = 1;
+ init_flags_ = VPX_CODEC_USE_PSNR;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ cfg_.g_threads = 4;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ // Compare to check if single-thread and multi-thread stats matches.
+ compare_fp_stats(&firstpass_stats_);
+}
+
class VPxEncoderThreadTest
: public ::libvpx_test::EncoderTest,
public ::libvpx_test::CodecTestWith4Params<libvpx_test::TestMode, int,
@@ -123,6 +285,14 @@
// Compare to check if two vectors are equal.
ASSERT_EQ(single_thr_md5, multi_thr_md5);
}
+
+INSTANTIATE_TEST_CASE_P(
+ VP9, VPxFirstPassEncoderThreadTest,
+ ::testing::Combine(
+ ::testing::Values(
+ static_cast<const libvpx_test::CodecFactory *>(&libvpx_test::kVP9)),
+ ::testing::Values(::libvpx_test::kTwoPassGood),
+ ::testing::Range(0, 4))); // cpu_used
// Split this into two instantiations so that we can distinguish
// between very slow runs ( ie cpu_speed 0 ) vs ones that can be