ref: a07707125f84cab52dc6b4d3f09ed911712198f2
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 <stdio.h> #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; }; void ScaleForFrameNumber(unsigned int frame, unsigned int initial_w, unsigned int initial_h, unsigned int *w, unsigned int *h, int flag_codec) { if (frame < 10) { *w = initial_w; *h = initial_h; return; } if (frame < 20) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 30) { *w = initial_w / 2; *h = initial_h / 2; return; } if (frame < 40) { *w = initial_w; *h = initial_h; return; } if (frame < 50) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 60) { *w = initial_w / 2; *h = initial_h / 2; return; } if (frame < 70) { *w = initial_w; *h = initial_h; return; } if (frame < 80) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 90) { *w = initial_w / 2; *h = initial_h / 2; return; } if (frame < 100) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 110) { *w = initial_w; *h = initial_h; return; } if (frame < 120) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 130) { *w = initial_w / 2; *h = initial_h / 2; return; } if (frame < 140) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 150) { *w = initial_w; *h = initial_h; return; } if (frame < 160) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 170) { *w = initial_w / 2; *h = initial_h / 2; return; } if (frame < 180) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 190) { *w = initial_w; *h = initial_h; return; } if (frame < 200) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 210) { *w = initial_w / 2; *h = initial_h / 2; return; } if (frame < 220) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 230) { *w = initial_w; *h = initial_h; return; } if (frame < 240) { *w = initial_w * 3 / 4; *h = initial_h * 3 / 4; return; } if (frame < 250) { *w = initial_w / 2; *h = initial_h / 2; return; } if (frame < 260) { *w = initial_w; *h = initial_h; return; } // Go down very low. if (frame < 270) { *w = initial_w / 4; *h = initial_h / 4; return; } if (flag_codec == 1) { // Cases that only works for VP9. // For VP9: Swap width and height of original. if (frame < 320) { *w = initial_h; *h = initial_w; return; } } *w = initial_w; *h = initial_h; } class ResizingVideoSource : public ::libvpx_test::DummyVideoSource { public: ResizingVideoSource() { SetSize(kInitialWidth, kInitialHeight); limit_ = 350; } int flag_codec_; virtual ~ResizingVideoSource() {} protected: virtual void Next() { ++frame_; unsigned int width; unsigned int height; ScaleForFrameNumber(frame_, kInitialWidth, kInitialHeight, &width, &height, flag_codec_); SetSize(width, height); 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 FramePktHook(const vpx_codec_cx_pkt_t *pkt) { ASSERT_NE(static_cast<int>(pkt->data.frame.width[0]), 0); ASSERT_NE(static_cast<int>(pkt->data.frame.height[0]), 0); encode_frame_width_.push_back(pkt->data.frame.width[0]); encode_frame_height_.push_back(pkt->data.frame.height[0]); } unsigned int GetFrameWidth(size_t idx) const { return encode_frame_width_[idx]; } unsigned int GetFrameHeight(size_t idx) const { return encode_frame_height_[idx]; } 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_; std::vector<unsigned int> encode_frame_width_; std::vector<unsigned int> encode_frame_height_; }; TEST_P(ResizeTest, TestExternalResizeWorks) { ResizingVideoSource video; video.flag_codec_ = 0; 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); unsigned int expected_w; unsigned int expected_h; const size_t idx = info - frame_info_list_.begin(); ASSERT_EQ(info->w, GetFrameWidth(idx)); ASSERT_EQ(info->h, GetFrameHeight(idx)); ScaleForFrameNumber(frame, kInitialWidth, kInitialHeight, &expected_w, &expected_h, 0); 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_ == 0.) 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 ResizeRealtimeTest : public ::libvpx_test::EncoderTest, public ::libvpx_test::CodecTestWith2Params<libvpx_test::TestMode, int> { protected: ResizeRealtimeTest() : EncoderTest(GET_PARAM(0)) {} virtual ~ResizeRealtimeTest() {} 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)); } virtual void MismatchHook(const vpx_image_t *img1, const vpx_image_t *img2) { double mismatch_psnr = compute_psnr(img1, img2); mismatch_psnr_ += mismatch_psnr; ++mismatch_nframes_; } virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) { ASSERT_NE(static_cast<int>(pkt->data.frame.width[0]), 0); ASSERT_NE(static_cast<int>(pkt->data.frame.height[0]), 0); encode_frame_width_.push_back(pkt->data.frame.width[0]); encode_frame_height_.push_back(pkt->data.frame.height[0]); } unsigned int GetMismatchFrames() { return mismatch_nframes_; } unsigned int GetFrameWidth(size_t idx) const { return encode_frame_width_[idx]; } unsigned int GetFrameHeight(size_t idx) const { return encode_frame_height_[idx]; } void DefaultConfig() { 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_; double mismatch_psnr_; int mismatch_nframes_; std::vector<unsigned int> encode_frame_width_; std::vector<unsigned int> encode_frame_height_; }; TEST_P(ResizeRealtimeTest, TestExternalResizeWorks) { ResizingVideoSource video; video.flag_codec_ = 1; DefaultConfig(); // Disable internal resize for this test. cfg_.rc_resize_allowed = 0; change_bitrate_ = false; mismatch_psnr_ = 0.0; mismatch_nframes_ = 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); unsigned int expected_w; unsigned int expected_h; ScaleForFrameNumber(frame, kInitialWidth, kInitialHeight, &expected_w, &expected_h, 1); EXPECT_EQ(expected_w, info->w) << "Frame " << frame << " had unexpected width"; EXPECT_EQ(expected_h, info->h) << "Frame " << frame << " had unexpected height"; EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames()); } } // 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(ResizeRealtimeTest, TestInternalResizeDown) { ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288, 30, 1, 0, 299); DefaultConfig(); cfg_.g_w = 352; cfg_.g_h = 288; change_bitrate_ = false; mismatch_psnr_ = 0.0; mismatch_nframes_ = 0; 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++; } } #if CONFIG_VP9_DECODER // Verify that we get 1 resize down event in this test. ASSERT_EQ(1, resize_count) << "Resizing should occur."; EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames()); #else printf("Warning: VP9 decoder unavailable, unable to check resize count!\n"); #endif } // 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(ResizeRealtimeTest, TestInternalResizeDownUpChangeBitRate) { ::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288, 30, 1, 0, 359); DefaultConfig(); cfg_.g_w = 352; cfg_.g_h = 288; change_bitrate_ = true; mismatch_psnr_ = 0.0; mismatch_nframes_ = 0; // Disable dropped frames. cfg_.rc_dropframe_thresh = 0; // Starting bitrate low. cfg_.rc_target_bitrate = 80; 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) { const size_t idx = info - frame_info_list_.begin(); ASSERT_EQ(info->w, GetFrameWidth(idx)); ASSERT_EQ(info->h, GetFrameHeight(idx)); 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; } } #if CONFIG_VP9_DECODER // Verify that we get 2 resize events in this test. ASSERT_EQ(resize_count, 2) << "Resizing should occur twice."; EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames()); #else printf("Warning: VP9 decoder unavailable, unable to check resize count!\n"); #endif } 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_ == 0.) 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(ResizeRealtimeTest, ::testing::Values(::libvpx_test::kRealTime), ::testing::Range(5, 9)); VP9_INSTANTIATE_TEST_CASE(ResizeCspTest, ::testing::Values(::libvpx_test::kRealTime)); } // namespace