ref: c6641709a707ccb98cbdf785428659e44d4f2c8b
dir: /test/resize_test.cc/
/* * Copyright (c) 2012 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 <climits> #include <vector> #include "third_party/googletest/src/include/gtest/gtest.h" #include "test/codec_factory.h" #include "test/encode_test_driver.h" #include "test/i420_video_source.h" #include "test/video_source.h" #include "test/util.h" // Enable(1) or Disable(0) writing of the compressed bitstream. #define WRITE_COMPRESSED_STREAM 0 namespace { #if WRITE_COMPRESSED_STREAM static void mem_put_le16(char *const mem, const unsigned int val) { mem[0] = val; mem[1] = val >> 8; } static void mem_put_le32(char *const mem, const unsigned int val) { mem[0] = val; mem[1] = val >> 8; mem[2] = val >> 16; mem[3] = val >> 24; } static void write_ivf_file_header(const vpx_codec_enc_cfg_t *const cfg, int frame_cnt, FILE *const outfile) { char header[32]; header[0] = 'D'; header[1] = 'K'; header[2] = 'I'; header[3] = 'F'; mem_put_le16(header + 4, 0); /* version */ mem_put_le16(header + 6, 32); /* headersize */ mem_put_le32(header + 8, 0x30395056); /* fourcc (vp9) */ mem_put_le16(header + 12, cfg->g_w); /* width */ mem_put_le16(header + 14, cfg->g_h); /* height */ mem_put_le32(header + 16, cfg->g_timebase.den); /* rate */ mem_put_le32(header + 20, cfg->g_timebase.num); /* scale */ mem_put_le32(header + 24, frame_cnt); /* length */ mem_put_le32(header + 28, 0); /* unused */ (void)fwrite(header, 1, 32, outfile); } static void write_ivf_frame_size(FILE *const outfile, const size_t size) { char header[4]; mem_put_le32(header, static_cast<unsigned int>(size)); (void)fwrite(header, 1, 4, outfile); } static void write_ivf_frame_header(const vpx_codec_cx_pkt_t *const pkt, FILE *const outfile) { char header[12]; vpx_codec_pts_t pts; if (pkt->kind != VPX_CODEC_CX_FRAME_PKT) return; pts = pkt->data.frame.pts; mem_put_le32(header, static_cast<unsigned int>(pkt->data.frame.sz)); mem_put_le32(header + 4, pts & 0xFFFFFFFF); mem_put_le32(header + 8, pts >> 32); (void)fwrite(header, 1, 12, outfile); } #endif // WRITE_COMPRESSED_STREAM const unsigned int kInitialWidth = 320; const unsigned int kInitialHeight = 240; struct FrameInfo { FrameInfo(vpx_codec_pts_t _pts, unsigned int _w, unsigned int _h) : pts(_pts), w(_w), h(_h) {} vpx_codec_pts_t pts; unsigned int w; unsigned int h; }; unsigned int ScaleForFrameNumber(unsigned int frame, unsigned int val) { if (frame < 10) return val; if (frame < 20) return val / 2; if (frame < 30) return val * 2 / 3; if (frame < 40) return val / 4; if (frame < 50) return val * 7 / 8; return val; } class ResizingVideoSource : public ::libvpx_test::DummyVideoSource { public: ResizingVideoSource() { SetSize(kInitialWidth, kInitialHeight); limit_ = 60; } virtual ~ResizingVideoSource() {} protected: virtual void Next() { ++frame_; SetSize(ScaleForFrameNumber(frame_, kInitialWidth), ScaleForFrameNumber(frame_, kInitialHeight)); FillFrame(); } }; class ResizeTest : public ::libvpx_test::EncoderTest, public ::libvpx_test::CodecTestWithParam<libvpx_test::TestMode> { protected: ResizeTest() : EncoderTest(GET_PARAM(0)) {} virtual ~ResizeTest() {} virtual void SetUp() { InitializeConfig(); SetMode(GET_PARAM(1)); } virtual void DecompressedFrameHook(const vpx_image_t &img, vpx_codec_pts_t pts) { frame_info_list_.push_back(FrameInfo(pts, img.d_w, img.d_h)); } std::vector< FrameInfo > frame_info_list_; }; TEST_P(ResizeTest, TestExternalResizeWorks) { ResizingVideoSource video; cfg_.g_lag_in_frames = 0; ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin(); info != frame_info_list_.end(); ++info) { const unsigned int frame = static_cast<unsigned>(info->pts); const unsigned int expected_w = ScaleForFrameNumber(frame, kInitialWidth); const unsigned int expected_h = ScaleForFrameNumber(frame, kInitialHeight); EXPECT_EQ(expected_w, info->w) << "Frame " << frame << " had unexpected width"; EXPECT_EQ(expected_h, info->h) << "Frame " << frame << " had unexpected height"; } } const unsigned int kStepDownFrame = 3; const unsigned int kStepUpFrame = 6; class ResizeInternalTest : public ResizeTest { protected: #if WRITE_COMPRESSED_STREAM ResizeInternalTest() : ResizeTest(), frame0_psnr_(0.0), outfile_(NULL), out_frames_(0) {} #else ResizeInternalTest() : ResizeTest(), frame0_psnr_(0.0) {} #endif virtual ~ResizeInternalTest() {} virtual void BeginPassHook(unsigned int /*pass*/) { #if WRITE_COMPRESSED_STREAM outfile_ = fopen("vp90-2-05-resize.ivf", "wb"); #endif } virtual void EndPassHook() { #if WRITE_COMPRESSED_STREAM if (outfile_) { if (!fseek(outfile_, 0, SEEK_SET)) write_ivf_file_header(&cfg_, out_frames_, outfile_); fclose(outfile_); outfile_ = NULL; } #endif } virtual void PreEncodeFrameHook(libvpx_test::VideoSource *video, libvpx_test::Encoder *encoder) { if (change_config_) { int new_q = 60; if (video->frame() == 0) { struct vpx_scaling_mode mode = {VP8E_ONETWO, VP8E_ONETWO}; encoder->Control(VP8E_SET_SCALEMODE, &mode); } if (video->frame() == 1) { struct vpx_scaling_mode mode = {VP8E_NORMAL, VP8E_NORMAL}; encoder->Control(VP8E_SET_SCALEMODE, &mode); cfg_.rc_min_quantizer = cfg_.rc_max_quantizer = new_q; encoder->Config(&cfg_); } } else { if (video->frame() == kStepDownFrame) { struct vpx_scaling_mode mode = {VP8E_FOURFIVE, VP8E_THREEFIVE}; encoder->Control(VP8E_SET_SCALEMODE, &mode); } if (video->frame() == kStepUpFrame) { struct vpx_scaling_mode mode = {VP8E_NORMAL, VP8E_NORMAL}; encoder->Control(VP8E_SET_SCALEMODE, &mode); } } } virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) { if (!frame0_psnr_) frame0_psnr_ = pkt->data.psnr.psnr[0]; EXPECT_NEAR(pkt->data.psnr.psnr[0], frame0_psnr_, 2.0); } #if WRITE_COMPRESSED_STREAM virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) { ++out_frames_; // Write initial file header if first frame. if (pkt->data.frame.pts == 0) write_ivf_file_header(&cfg_, 0, outfile_); // Write frame header and data. write_ivf_frame_header(pkt, outfile_); (void)fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz, outfile_); } #endif double frame0_psnr_; bool change_config_; #if WRITE_COMPRESSED_STREAM FILE *outfile_; unsigned int out_frames_; #endif }; TEST_P(ResizeInternalTest, TestInternalResizeWorks) { ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288, 30, 1, 0, 10); init_flags_ = VPX_CODEC_USE_PSNR; change_config_ = false; // q picked such that initial keyframe on this clip is ~30dB PSNR cfg_.rc_min_quantizer = cfg_.rc_max_quantizer = 48; // If the number of frames being encoded is smaller than g_lag_in_frames // the encoded frame is unavailable using the current API. Comparing // frames to detect mismatch would then not be possible. Set // g_lag_in_frames = 0 to get around this. cfg_.g_lag_in_frames = 0; ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin(); info != frame_info_list_.end(); ++info) { const vpx_codec_pts_t pts = info->pts; if (pts >= kStepDownFrame && pts < kStepUpFrame) { ASSERT_EQ(282U, info->w) << "Frame " << pts << " had unexpected width"; ASSERT_EQ(173U, info->h) << "Frame " << pts << " had unexpected height"; } else { EXPECT_EQ(352U, info->w) << "Frame " << pts << " had unexpected width"; EXPECT_EQ(288U, info->h) << "Frame " << pts << " had unexpected height"; } } } TEST_P(ResizeInternalTest, TestInternalResizeChangeConfig) { ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288, 30, 1, 0, 10); cfg_.g_w = 352; cfg_.g_h = 288; change_config_ = true; ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); } class ResizeInternalRealtimeTest : public ::libvpx_test::EncoderTest, public ::libvpx_test::CodecTestWith2Params<libvpx_test::TestMode, int> { protected: ResizeInternalRealtimeTest() : EncoderTest(GET_PARAM(0)) {} virtual ~ResizeInternalRealtimeTest() {} virtual void PreEncodeFrameHook(libvpx_test::VideoSource *video, libvpx_test::Encoder *encoder) { if (video->frame() == 0) { encoder->Control(VP9E_SET_AQ_MODE, 3); encoder->Control(VP8E_SET_CPUUSED, set_cpu_used_); } if (change_bitrate_ && video->frame() == 120) { change_bitrate_ = false; cfg_.rc_target_bitrate = 500; encoder->Config(&cfg_); } } virtual void SetUp() { InitializeConfig(); SetMode(GET_PARAM(1)); set_cpu_used_ = GET_PARAM(2); } virtual void DecompressedFrameHook(const vpx_image_t &img, vpx_codec_pts_t pts) { frame_info_list_.push_back(FrameInfo(pts, img.d_w, img.d_h)); } void DefaultConfig() { cfg_.g_w = 352; cfg_.g_h = 288; cfg_.rc_buf_initial_sz = 500; cfg_.rc_buf_optimal_sz = 600; cfg_.rc_buf_sz = 1000; cfg_.rc_min_quantizer = 2; cfg_.rc_max_quantizer = 56; cfg_.rc_undershoot_pct = 50; cfg_.rc_overshoot_pct = 50; cfg_.rc_end_usage = VPX_CBR; cfg_.kf_mode = VPX_KF_AUTO; cfg_.g_lag_in_frames = 0; cfg_.kf_min_dist = cfg_.kf_max_dist = 3000; // Enable dropped frames. cfg_.rc_dropframe_thresh = 1; // Enable error_resilience mode. cfg_.g_error_resilient = 1; // Enable dynamic resizing. cfg_.rc_resize_allowed = 1; // Run at low bitrate. cfg_.rc_target_bitrate = 200; } std::vector< FrameInfo > frame_info_list_; int set_cpu_used_; bool change_bitrate_; }; // Verify the dynamic resizer behavior for real time, 1 pass CBR mode. // Run at low bitrate, with resize_allowed = 1, and verify that we get // one resize down event. TEST_P(ResizeInternalRealtimeTest, TestInternalResizeDown) { ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288, 30, 1, 0, 299); DefaultConfig(); change_bitrate_ = false; ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); unsigned int last_w = cfg_.g_w; unsigned int last_h = cfg_.g_h; int resize_count = 0; for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin(); info != frame_info_list_.end(); ++info) { if (info->w != last_w || info->h != last_h) { // Verify that resize down occurs. ASSERT_LT(info->w, last_w); ASSERT_LT(info->h, last_h); last_w = info->w; last_h = info->h; resize_count++; } } // Verify that we get 1 resize down event in this test. ASSERT_EQ(1, resize_count) << "Resizing should occur."; } // Verify the dynamic resizer behavior for real time, 1 pass CBR mode. // Start at low target bitrate, raise the bitrate in the middle of the clip, // scaling-up should occur after bitrate changed. TEST_P(ResizeInternalRealtimeTest, TestInternalResizeDownUpChangeBitRate) { ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288, 30, 1, 0, 299); DefaultConfig(); change_bitrate_ = true; // Disable dropped frames. cfg_.rc_dropframe_thresh = 0; // Starting bitrate low. cfg_.rc_target_bitrate = 100; ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); unsigned int last_w = cfg_.g_w; unsigned int last_h = cfg_.g_h; int resize_count = 0; for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin(); info != frame_info_list_.end(); ++info) { if (info->w != last_w || info->h != last_h) { resize_count++; if (resize_count == 1) { // Verify that resize down occurs. ASSERT_LT(info->w, last_w); ASSERT_LT(info->h, last_h); } else if (resize_count == 2) { // Verify that resize up occurs. ASSERT_GT(info->w, last_w); ASSERT_GT(info->h, last_h); } last_w = info->w; last_h = info->h; } } // Verify that we get 2 resize events in this test. ASSERT_EQ(2, resize_count) << "Resizing should occur twice."; } vpx_img_fmt_t CspForFrameNumber(int frame) { if (frame < 10) return VPX_IMG_FMT_I420; if (frame < 20) return VPX_IMG_FMT_I444; return VPX_IMG_FMT_I420; } class ResizeCspTest : public ResizeTest { protected: #if WRITE_COMPRESSED_STREAM ResizeCspTest() : ResizeTest(), frame0_psnr_(0.0), outfile_(NULL), out_frames_(0) {} #else ResizeCspTest() : ResizeTest(), frame0_psnr_(0.0) {} #endif virtual ~ResizeCspTest() {} virtual void BeginPassHook(unsigned int /*pass*/) { #if WRITE_COMPRESSED_STREAM outfile_ = fopen("vp91-2-05-cspchape.ivf", "wb"); #endif } virtual void EndPassHook() { #if WRITE_COMPRESSED_STREAM if (outfile_) { if (!fseek(outfile_, 0, SEEK_SET)) write_ivf_file_header(&cfg_, out_frames_, outfile_); fclose(outfile_); outfile_ = NULL; } #endif } virtual void PreEncodeFrameHook(libvpx_test::VideoSource *video, libvpx_test::Encoder *encoder) { if (CspForFrameNumber(video->frame()) != VPX_IMG_FMT_I420 && cfg_.g_profile != 1) { cfg_.g_profile = 1; encoder->Config(&cfg_); } if (CspForFrameNumber(video->frame()) == VPX_IMG_FMT_I420 && cfg_.g_profile != 0) { cfg_.g_profile = 0; encoder->Config(&cfg_); } } virtual void PSNRPktHook(const vpx_codec_cx_pkt_t *pkt) { if (!frame0_psnr_) frame0_psnr_ = pkt->data.psnr.psnr[0]; EXPECT_NEAR(pkt->data.psnr.psnr[0], frame0_psnr_, 2.0); } #if WRITE_COMPRESSED_STREAM virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) { ++out_frames_; // Write initial file header if first frame. if (pkt->data.frame.pts == 0) write_ivf_file_header(&cfg_, 0, outfile_); // Write frame header and data. write_ivf_frame_header(pkt, outfile_); (void)fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz, outfile_); } #endif double frame0_psnr_; #if WRITE_COMPRESSED_STREAM FILE *outfile_; unsigned int out_frames_; #endif }; class ResizingCspVideoSource : public ::libvpx_test::DummyVideoSource { public: ResizingCspVideoSource() { SetSize(kInitialWidth, kInitialHeight); limit_ = 30; } virtual ~ResizingCspVideoSource() {} protected: virtual void Next() { ++frame_; SetImageFormat(CspForFrameNumber(frame_)); FillFrame(); } }; TEST_P(ResizeCspTest, TestResizeCspWorks) { ResizingCspVideoSource video; init_flags_ = VPX_CODEC_USE_PSNR; cfg_.rc_min_quantizer = cfg_.rc_max_quantizer = 48; cfg_.g_lag_in_frames = 0; ASSERT_NO_FATAL_FAILURE(RunLoop(&video)); } VP8_INSTANTIATE_TEST_CASE(ResizeTest, ONE_PASS_TEST_MODES); VP9_INSTANTIATE_TEST_CASE(ResizeTest, ::testing::Values(::libvpx_test::kRealTime)); VP9_INSTANTIATE_TEST_CASE(ResizeInternalTest, ::testing::Values(::libvpx_test::kOnePassBest)); VP9_INSTANTIATE_TEST_CASE(ResizeInternalRealtimeTest, ::testing::Values(::libvpx_test::kRealTime), ::testing::Range(5, 9)); VP9_INSTANTIATE_TEST_CASE(ResizeCspTest, ::testing::Values(::libvpx_test::kRealTime)); } // namespace