| /* |
| * Copyright (c) 2024 The WebRTC 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 "api/video_codecs/libaom_av1_encoder_factory.h" |
| |
| #include <cstdint> |
| #include <cstdio> |
| #include <memory> |
| #include <optional> |
| #include <ostream> |
| #include <string> |
| #include <utility> |
| #include <vector> |
| |
| #include "absl/types/variant.h" |
| #include "api/array_view.h" |
| #include "api/scoped_refptr.h" |
| #include "api/units/data_rate.h" |
| #include "api/units/data_size.h" |
| #include "api/units/time_delta.h" |
| #include "api/units/timestamp.h" |
| #include "api/video/encoded_image.h" |
| #include "api/video/i420_buffer.h" |
| #include "api/video/video_frame.h" |
| #include "api/video/video_frame_buffer.h" |
| #include "api/video_codecs/video_decoder.h" |
| #include "api/video_codecs/video_encoder_factory_interface.h" |
| #include "api/video_codecs/video_encoder_interface.h" |
| #include "api/video_codecs/video_encoding_general.h" |
| #include "common_video/libyuv/include/webrtc_libyuv.h" |
| #include "modules/video_coding/codecs/av1/dav1d_decoder.h" |
| #include "rtc_base/checks.h" |
| #include "rtc_base/logging.h" |
| #include "test/gmock.h" |
| #include "test/gtest.h" |
| #include "test/testsupport/file_utils.h" |
| #include "test/testsupport/frame_reader.h" |
| |
| namespace webrtc { |
| namespace { |
| using ::testing::Eq; |
| using ::testing::Gt; |
| using ::testing::IsEmpty; |
| using ::testing::Not; |
| using Cbr = VideoEncoderInterface::FrameEncodeSettings::Cbr; |
| using Cqp = VideoEncoderInterface::FrameEncodeSettings::Cqp; |
| using EncodedData = VideoEncoderInterface::EncodedData; |
| using EncodeResult = VideoEncoderInterface::EncodeResult; |
| using FrameType = VideoEncoderInterface::FrameType; |
| |
| std::unique_ptr<test::FrameReader> CreateFrameReader() { |
| return CreateY4mFrameReader( |
| test::ResourcePath("reference_video_640x360_30fps", "y4m"), |
| test::YuvFrameReaderImpl::RepeatMode::kPingPong); |
| } |
| |
| std::string OutPath() { |
| std::string res = test::OutputPath(); |
| res += "frame_dump/"; |
| RTC_CHECK(test::DirExists(res) || test::CreateDir(res)); |
| return res; |
| } |
| |
| class Av1Decoder : public DecodedImageCallback { |
| public: |
| Av1Decoder() : Av1Decoder("") {} |
| |
| explicit Av1Decoder(const std::string& name) |
| : decoder_(CreateDav1dDecoder()), file_name_(name) { |
| decoder_->Configure({}); |
| decoder_->RegisterDecodeCompleteCallback(this); |
| |
| if (!file_name_.empty()) { |
| std::string out = OutPath(); |
| out += file_name_; |
| out += "_raw.av1"; |
| RTC_CHECK(raw_out_file_ = fopen(out.c_str(), "wb")); |
| RTC_LOG(LS_INFO) << "Recording bitstream to " << out; |
| } |
| } |
| |
| ~Av1Decoder() { |
| if (raw_out_file_) { |
| fclose(raw_out_file_); |
| } |
| } |
| |
| // DecodedImageCallback |
| int32_t Decoded(VideoFrame& frame) override { |
| decode_result_ = std::make_unique<VideoFrame>(std::move(frame)); |
| return 0; |
| } |
| |
| VideoFrame Decode(rtc::ArrayView<uint8_t> bitstream_data) { |
| EncodedImage img; |
| img.SetEncodedData(EncodedImageBuffer::Create(bitstream_data.data(), |
| bitstream_data.size())); |
| if (raw_out_file_) { |
| fwrite(bitstream_data.data(), 1, bitstream_data.size(), raw_out_file_); |
| } |
| decoder_->Decode(img, /*dont_care=*/0); |
| VideoFrame res(std::move(*decode_result_)); |
| return res; |
| } |
| |
| private: |
| std::unique_ptr<VideoDecoder> decoder_; |
| std::unique_ptr<VideoFrame> decode_result_; |
| std::string file_name_; |
| FILE* raw_out_file_ = nullptr; |
| }; |
| |
| struct EncOut { |
| std::vector<uint8_t> bitstream; |
| EncodeResult res; |
| }; |
| |
| class FrameEncoderSettingsBuilder { |
| public: |
| FrameEncoderSettingsBuilder() { |
| class IgnoredOutput : public VideoEncoderInterface::FrameOutput { |
| public: |
| rtc::ArrayView<uint8_t> GetBitstreamOutputBuffer(DataSize size) override { |
| unread_.resize(size.bytes()); |
| return unread_; |
| } |
| void EncodeComplete(const EncodeResult& encode_result) override {} |
| |
| private: |
| std::vector<uint8_t> unread_; |
| }; |
| |
| frame_encode_settings_.frame_output = std::make_unique<IgnoredOutput>(); |
| } |
| |
| FrameEncoderSettingsBuilder& Key() { |
| frame_encode_settings_.frame_type = FrameType::kKeyframe; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& Start() { |
| frame_encode_settings_.frame_type = FrameType::kStartFrame; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& Delta() { |
| frame_encode_settings_.frame_type = FrameType::kStartFrame; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& Rate( |
| const absl::variant<Cqp, Cbr>& rate_options) { |
| frame_encode_settings_.rate_options = rate_options; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& T(int id) { |
| frame_encode_settings_.temporal_id = id; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& S(int id) { |
| frame_encode_settings_.spatial_id = id; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& Res(int width, int height) { |
| frame_encode_settings_.resolution = {width, height}; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& Ref(const std::vector<int>& ref) { |
| frame_encode_settings_.reference_buffers = ref; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& Upd(int upd) { |
| frame_encode_settings_.update_buffer = upd; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& Effort(int effort_level) { |
| frame_encode_settings_.effort_level = effort_level; |
| return *this; |
| } |
| |
| FrameEncoderSettingsBuilder& Out(EncOut& out) { |
| frame_encode_settings_.frame_output = std::make_unique<FrameOut>(out); |
| return *this; |
| } |
| |
| operator VideoEncoderInterface::FrameEncodeSettings&&() { |
| return std::move(frame_encode_settings_); |
| } |
| |
| private: |
| struct FrameOut : public VideoEncoderInterface::FrameOutput { |
| explicit FrameOut(EncOut& e) : eo(e) {} |
| rtc::ArrayView<uint8_t> GetBitstreamOutputBuffer(DataSize size) override { |
| eo.bitstream.resize(size.bytes()); |
| return rtc::ArrayView<uint8_t>(eo.bitstream); |
| } |
| void EncodeComplete(const EncodeResult& encode_result) override { |
| eo.res = encode_result; |
| } |
| EncOut& eo; |
| }; |
| |
| VideoEncoderInterface::FrameEncodeSettings frame_encode_settings_; |
| }; |
| |
| using Fb = FrameEncoderSettingsBuilder; |
| |
| // Since FrameEncodeSettings is move only, initalizer-list initialization won't |
| // work, so instead a C-style array can be used to do aggregate initialization. |
| template <int N> |
| std::vector<VideoEncoderInterface::FrameEncodeSettings> ToVec( |
| VideoEncoderInterface::FrameEncodeSettings (&&settings)[N]) { |
| return std::vector<VideoEncoderInterface::FrameEncodeSettings>( |
| std::make_move_iterator(std::begin(settings)), |
| std::make_move_iterator(std::end(settings))); |
| } |
| |
| // For reasonable debug printout when an EXPECT fail. |
| struct Resolution { |
| explicit Resolution(const VideoFrame& frame) |
| : width(frame.width()), height(frame.height()) {} |
| |
| friend void PrintTo(const Resolution& res, std::ostream* os) { |
| *os << "(width: " << res.width << " height: " << res.height << ")"; |
| } |
| |
| int width; |
| int height; |
| }; |
| |
| MATCHER_P2(ResolutionIs, width, height, "") { |
| return arg.width == width && arg.height == height; |
| } |
| |
| MATCHER_P(QpIs, qp, "") { |
| if (auto ed = absl::get_if<EncodedData>(&arg.res)) { |
| return ed->encoded_qp == qp; |
| } |
| return false; |
| } |
| |
| MATCHER(HasBitstreamAndMetaData, "") { |
| return !arg.bitstream.empty() && |
| absl::holds_alternative<EncodedData>(arg.res); |
| } |
| |
| double Psnr(const rtc::scoped_refptr<I420BufferInterface>& ref_buffer, |
| const VideoFrame& decoded_frame) { |
| return I420PSNR(*ref_buffer, *decoded_frame.video_frame_buffer()->ToI420()); |
| } |
| |
| static constexpr VideoEncoderFactoryInterface::StaticEncoderSettings |
| kCbrEncoderSettings{ |
| .max_encode_dimensions = {.width = 1920, .height = 1080}, |
| .encoding_format = {.sub_sampling = EncodingFormat::SubSampling::k420, |
| .bit_depth = 8}, |
| .rc_mode = |
| VideoEncoderFactoryInterface::StaticEncoderSettings::Cbr{ |
| .max_buffer_size = TimeDelta::Millis(1000), |
| .target_buffer_size = TimeDelta::Millis(600)}, |
| .max_number_of_threads = 1, |
| }; |
| |
| static constexpr VideoEncoderFactoryInterface::StaticEncoderSettings |
| kCqpEncoderSettings{ |
| .max_encode_dimensions = {.width = 1920, .height = 1080}, |
| .encoding_format = {.sub_sampling = EncodingFormat::SubSampling::k420, |
| .bit_depth = 8}, |
| .rc_mode = VideoEncoderFactoryInterface::StaticEncoderSettings::Cqp(), |
| .max_number_of_threads = 1, |
| }; |
| |
| static constexpr Cbr kCbr{.duration = TimeDelta::Millis(100), |
| .target_bitrate = DataRate::KilobitsPerSec(1000)}; |
| |
| TEST(LibaomAv1EncoderFactory, CodecName) { |
| EXPECT_THAT(LibaomAv1EncoderFactory().CodecName(), Eq("AV1")); |
| } |
| |
| TEST(LibaomAv1EncoderFactory, CodecSpecifics) { |
| EXPECT_THAT(LibaomAv1EncoderFactory().CodecSpecifics(), IsEmpty()); |
| } |
| |
| TEST(LibaomAv1EncoderFactory, QpRange) { |
| const std::pair<int, int> kMinMaxQp = {0, 63}; |
| EXPECT_THAT( |
| LibaomAv1EncoderFactory().GetEncoderCapabilities().rate_control.qp_range, |
| Eq(kMinMaxQp)); |
| } |
| |
| TEST(LibaomAv1Encoder, KeyframeUpdatesSpecifiedBuffer) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| Av1Decoder dec; |
| |
| auto raw_key = frame_reader->PullFrame(); |
| auto raw_delta = frame_reader->PullFrame(); |
| |
| EncOut key; |
| enc->Encode(raw_key, {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(640, 360).Upd(5).Key().Out(key)})); |
| ASSERT_THAT(key.bitstream, Not(IsEmpty())); |
| VideoFrame decoded_key = dec.Decode(key.bitstream); |
| EXPECT_THAT(Resolution(decoded_key), ResolutionIs(640, 360)); |
| EXPECT_THAT(Psnr(raw_key, decoded_key), Gt(40)); |
| |
| EncOut delta; |
| enc->Encode(raw_delta, {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec({Fb().Rate(kCbr).Res(640, 360).Ref({0}).Out(delta)})); |
| EXPECT_THAT(delta, Not(HasBitstreamAndMetaData())); |
| } |
| |
| TEST(LibaomAv1Encoder, MidTemporalUnitKeyframeResetsBuffers) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| |
| EncOut tu0_s2; |
| enc->Encode(frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Upd(0).Key(), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({0}), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({0}).Out(tu0_s2)})); |
| EXPECT_THAT(tu0_s2, HasBitstreamAndMetaData()); |
| |
| EncOut tu1_s0; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Upd(0).Ref({0}).Out(tu1_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Upd(1).Key(), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({0})})); |
| EXPECT_THAT(tu1_s0, Not(HasBitstreamAndMetaData())); |
| } |
| |
| TEST(LibaomAv1Encoder, ResolutionSwitching) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| |
| rtc::scoped_refptr<I420Buffer> in0 = frame_reader->PullFrame(); |
| EncOut tu0; |
| enc->Encode(in0, {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(320, 180).Upd(0).Key().Out(tu0)})); |
| |
| rtc::scoped_refptr<I420Buffer> in1 = frame_reader->PullFrame(); |
| EncOut tu1; |
| enc->Encode(in1, {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec({Fb().Rate(kCbr).Res(640, 360).Ref({0}).Out(tu1)})); |
| |
| rtc::scoped_refptr<I420Buffer> in2 = frame_reader->PullFrame(); |
| EncOut tu2; |
| enc->Encode(in2, {.presentation_timestamp = Timestamp::Millis(200)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).Ref({0}).Out(tu2)})); |
| |
| Av1Decoder dec; |
| VideoFrame f0 = dec.Decode(tu0.bitstream); |
| EXPECT_THAT(Resolution(f0), ResolutionIs(320, 180)); |
| // TD: |
| // EXPECT_THAT(Psnr(in0, f0), Gt(40)); |
| |
| VideoFrame f1 = dec.Decode(tu1.bitstream); |
| EXPECT_THAT(Resolution(f1), ResolutionIs(640, 360)); |
| EXPECT_THAT(Psnr(in1, f1), Gt(40)); |
| |
| VideoFrame f2 = dec.Decode(tu2.bitstream); |
| EXPECT_THAT(Resolution(f2), ResolutionIs(160, 90)); |
| // TD: |
| // EXPECT_THAT(Psnr(in2, f2), Gt(40)); |
| } |
| |
| TEST(LibaomAv1Encoder, InputResolutionSwitching) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| |
| rtc::scoped_refptr<I420Buffer> in0 = frame_reader->PullFrame(); |
| EncOut tu0; |
| enc->Encode(in0, {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).Upd(0).Key().Out(tu0)})); |
| |
| rtc::scoped_refptr<I420Buffer> in1 = frame_reader->PullFrame( |
| /*frame_num=*/nullptr, |
| /*resolution=*/{320, 180}, |
| /*framerate_scale=*/{1, 1}); |
| EncOut tu1; |
| enc->Encode(in1, {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).Ref({0}).Out(tu1)})); |
| |
| rtc::scoped_refptr<I420Buffer> in2 = frame_reader->PullFrame( |
| /*frame_num=*/nullptr, |
| /*resolution=*/{160, 90}, |
| /*framerate_scale=*/{1, 1}); |
| EncOut tu2; |
| enc->Encode(in2, {.presentation_timestamp = Timestamp::Millis(200)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).Ref({0}).Out(tu2)})); |
| |
| Av1Decoder dec; |
| VideoFrame f0 = dec.Decode(tu0.bitstream); |
| EXPECT_THAT(Resolution(f0), ResolutionIs(160, 90)); |
| // TD: |
| // EXPECT_THAT(Psnr(in0, f0), Gt(40)); |
| |
| VideoFrame f1 = dec.Decode(tu1.bitstream); |
| EXPECT_THAT(Resolution(f1), ResolutionIs(160, 90)); |
| // TD: |
| // EXPECT_THAT(Psnr(in1, f1), Gt(40)); |
| |
| VideoFrame f2 = dec.Decode(tu2.bitstream); |
| EXPECT_THAT(Resolution(f2), ResolutionIs(160, 90)); |
| EXPECT_THAT(Psnr(in2, f2), Gt(40)); |
| } |
| |
| TEST(LibaomAv1Encoder, TempoSpatial) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| |
| const Cbr k10Fps{.duration = TimeDelta::Millis(100), |
| .target_bitrate = DataRate::KilobitsPerSec(500)}; |
| const Cbr k20Fps{.duration = TimeDelta::Millis(50), |
| .target_bitrate = DataRate::KilobitsPerSec(500)}; |
| |
| EncOut tu0_s0; |
| EncOut tu0_s1; |
| EncOut tu0_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec( |
| {Fb().Rate(k10Fps).Res(160, 90).S(0).Upd(0).Key().Out(tu0_s0), |
| Fb().Rate(k10Fps).Res(320, 180).S(1).Ref({0}).Upd(1).Out(tu0_s1), |
| Fb().Rate(k20Fps).Res(640, 360).S(2).Ref({1}).Upd(2).Out(tu0_s2)})); |
| |
| EncOut tu1_s2; |
| enc->Encode(frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(50)}, |
| ToVec({Fb().Rate(k20Fps).Res(640, 360).S(2).Ref({2}).Upd(2).Out( |
| tu1_s2)})); |
| |
| rtc::scoped_refptr<I420Buffer> frame = frame_reader->PullFrame(); |
| EncOut tu2_s0; |
| EncOut tu2_s1; |
| EncOut tu2_s2; |
| enc->Encode( |
| frame, {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec( |
| {Fb().Rate(k10Fps).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu2_s0), |
| Fb().Rate(k10Fps).Res(320, 180).S(1).Ref({0, 1}).Upd(1).Out(tu2_s1), |
| Fb().Rate(k20Fps).Res(640, 360).S(2).Ref({1, 2}).Upd(2).Out( |
| tu2_s2)})); |
| |
| Av1Decoder dec; |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s0.bitstream)), ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s1.bitstream)), ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s2.bitstream)), ResolutionIs(640, 360)); |
| EXPECT_THAT(Resolution(dec.Decode(tu1_s2.bitstream)), ResolutionIs(640, 360)); |
| EXPECT_THAT(Resolution(dec.Decode(tu2_s0.bitstream)), ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec.Decode(tu2_s1.bitstream)), ResolutionIs(320, 180)); |
| |
| VideoFrame f = dec.Decode(tu2_s2.bitstream); |
| EXPECT_THAT(Resolution(f), ResolutionIs(640, 360)); |
| EXPECT_THAT(Psnr(frame, f), Gt(40)); |
| } |
| |
| TEST(DISABLED_LibaomAv1Encoder, InvertedTempoSpatial) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| |
| EncOut tu0_s0; |
| EncOut tu0_s1; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(320, 180).S(0).Upd(0).Key().Out(tu0_s0), |
| Fb().Rate(kCbr).Res(640, 360).S(1).Ref({0}).Upd(1).Out(tu0_s1)})); |
| |
| EncOut tu1_s0; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec({Fb().Rate(kCbr).Res(320, 180).S(0).Ref({0}).Upd(0).Out(tu1_s0)})); |
| |
| EncOut tu2_s0; |
| EncOut tu2_s1; |
| rtc::scoped_refptr<I420Buffer> frame = frame_reader->PullFrame(); |
| enc->Encode( |
| frame, {.presentation_timestamp = Timestamp::Millis(200)}, |
| ToVec( |
| {Fb().Rate(kCbr).Res(320, 180).S(0).Ref({0}).Upd(0).Out(tu2_s0), |
| Fb().Rate(kCbr).Res(640, 360).S(1).Ref({1, 0}).Upd(1).Out(tu2_s1)})); |
| |
| Av1Decoder dec; |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s0.bitstream)), ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s1.bitstream)), ResolutionIs(640, 360)); |
| EXPECT_THAT(Resolution(dec.Decode(tu1_s0.bitstream)), ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec.Decode(tu2_s0.bitstream)), ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec.Decode(tu2_s1.bitstream)), ResolutionIs(640, 360)); |
| } |
| |
| TEST(LibaomAv1Encoder, SkipMidLayer) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| |
| EncOut tu0_s0; |
| EncOut tu0_s1; |
| EncOut tu0_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Upd(0).Key().Out(tu0_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({0}).Upd(1).Out(tu0_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({1}).Upd(2).Out(tu0_s2)})); |
| |
| EncOut tu1_s0; |
| EncOut tu1_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu1_s0), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({2}).Upd(2).Out(tu1_s2)})); |
| |
| EncOut tu2_s0; |
| EncOut tu2_s1; |
| EncOut tu2_s2; |
| rtc::scoped_refptr<I420Buffer> frame = frame_reader->PullFrame(); |
| enc->Encode( |
| frame, {.presentation_timestamp = Timestamp::Millis(200)}, |
| ToVec( |
| {Fb().Rate(kCbr).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu2_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({0, 1}).Upd(1).Out(tu2_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({1, 2}).Upd(2).Out(tu2_s2)})); |
| |
| Av1Decoder dec; |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s0.bitstream)), ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s1.bitstream)), ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s2.bitstream)), ResolutionIs(640, 360)); |
| EXPECT_THAT(Resolution(dec.Decode(tu1_s0.bitstream)), ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec.Decode(tu1_s2.bitstream)), ResolutionIs(640, 360)); |
| EXPECT_THAT(Resolution(dec.Decode(tu2_s0.bitstream)), ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec.Decode(tu2_s1.bitstream)), ResolutionIs(320, 180)); |
| |
| VideoFrame f = dec.Decode(tu2_s2.bitstream); |
| EXPECT_THAT(Resolution(f), ResolutionIs(640, 360)); |
| EXPECT_THAT(Psnr(frame, f), Gt(40)); |
| } |
| |
| TEST(LibaomAv1Encoder, L3T1) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| Av1Decoder dec; |
| |
| EncOut tu0_s0; |
| EncOut tu0_s1; |
| EncOut tu0_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Upd(0).Key().Out(tu0_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({0}).Upd(1).Out(tu0_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({1}).Upd(2).Out(tu0_s2)})); |
| |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s0.bitstream)), ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s1.bitstream)), ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec.Decode(tu0_s2.bitstream)), ResolutionIs(640, 360)); |
| |
| auto tu1_frame = frame_reader->PullFrame(); |
| EncOut tu1_s0; |
| EncOut tu1_s1; |
| EncOut tu1_s2; |
| enc->Encode( |
| tu1_frame, {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec( |
| {Fb().Rate(kCbr).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu1_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({1, 0}).Upd(1).Out(tu1_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({2, 1}).Upd(2).Out(tu1_s2)})); |
| |
| EXPECT_THAT(Resolution(dec.Decode(tu1_s0.bitstream)), ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec.Decode(tu1_s1.bitstream)), ResolutionIs(320, 180)); |
| |
| VideoFrame f_tu1_s2 = dec.Decode(tu1_s2.bitstream); |
| EXPECT_THAT(Resolution(f_tu1_s2), ResolutionIs(640, 360)); |
| EXPECT_THAT(Psnr(tu1_frame, f_tu1_s2), Gt(40)); |
| |
| auto tu2_frame = frame_reader->PullFrame(); |
| EncOut tu2_s0; |
| EncOut tu2_s1; |
| EncOut tu2_s2; |
| enc->Encode( |
| tu2_frame, {.presentation_timestamp = Timestamp::Millis(200)}, |
| ToVec( |
| {Fb().Rate(kCbr).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu2_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({1, 0}).Upd(1).Out(tu2_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({2, 1}).Upd(2).Out(tu2_s2)})); |
| |
| EXPECT_THAT(Resolution(dec.Decode(tu2_s0.bitstream)), ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec.Decode(tu2_s1.bitstream)), ResolutionIs(320, 180)); |
| |
| VideoFrame f_tu2 = dec.Decode(tu2_s2.bitstream); |
| EXPECT_THAT(Resolution(f_tu2), ResolutionIs(640, 360)); |
| EXPECT_THAT(Psnr(tu2_frame, f_tu2), Gt(40)); |
| } |
| |
| TEST(LibaomAv1Encoder, L3T1_KEY) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| |
| Av1Decoder dec_s0; |
| Av1Decoder dec_s1; |
| Av1Decoder dec_s2; |
| |
| EncOut tu0_s0; |
| EncOut tu0_s1; |
| EncOut tu0_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Upd(0).Key().Out(tu0_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({0}).Upd(1).Out(tu0_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({1}).Upd(2).Out(tu0_s2)})); |
| |
| EXPECT_THAT(Resolution(dec_s0.Decode(tu0_s0.bitstream)), |
| ResolutionIs(160, 90)); |
| |
| dec_s1.Decode(tu0_s0.bitstream); |
| EXPECT_THAT(Resolution(dec_s1.Decode(tu0_s1.bitstream)), |
| ResolutionIs(320, 180)); |
| |
| dec_s2.Decode(tu0_s0.bitstream); |
| dec_s2.Decode(tu0_s1.bitstream); |
| EXPECT_THAT(Resolution(dec_s2.Decode(tu0_s2.bitstream)), |
| ResolutionIs(640, 360)); |
| |
| EncOut tu1_s0; |
| EncOut tu1_s1; |
| EncOut tu1_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu1_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({1}).Upd(1).Out(tu1_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({2}).Upd(2).Out(tu1_s2)})); |
| |
| EXPECT_THAT(Resolution(dec_s0.Decode(tu1_s0.bitstream)), |
| ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec_s1.Decode(tu1_s1.bitstream)), |
| ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec_s2.Decode(tu1_s2.bitstream)), |
| ResolutionIs(640, 360)); |
| |
| EncOut tu2_s0; |
| EncOut tu2_s1; |
| EncOut tu2_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(200)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu2_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({1}).Upd(1).Out(tu2_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({2}).Upd(2).Out(tu2_s2)})); |
| |
| EXPECT_THAT(Resolution(dec_s0.Decode(tu2_s0.bitstream)), |
| ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec_s1.Decode(tu2_s1.bitstream)), |
| ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec_s2.Decode(tu2_s2.bitstream)), |
| ResolutionIs(640, 360)); |
| } |
| |
| TEST(LibaomAv1Encoder, S3T1) { |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| |
| Av1Decoder dec_s0; |
| Av1Decoder dec_s1; |
| Av1Decoder dec_s2; |
| |
| EncOut tu0_s0; |
| EncOut tu0_s1; |
| EncOut tu0_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Start().Upd(0).Out(tu0_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Start().Upd(1).Out(tu0_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Start().Upd(2).Out(tu0_s2)})); |
| EXPECT_THAT(Resolution(dec_s0.Decode(tu0_s0.bitstream)), |
| ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec_s1.Decode(tu0_s1.bitstream)), |
| ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec_s2.Decode(tu0_s2.bitstream)), |
| ResolutionIs(640, 360)); |
| |
| EncOut tu1_s0; |
| EncOut tu1_s1; |
| EncOut tu1_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(100)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu1_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({1}).Upd(1).Out(tu1_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({2}).Upd(2).Out(tu1_s2)})); |
| |
| EXPECT_THAT(Resolution(dec_s0.Decode(tu1_s0.bitstream)), |
| ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec_s1.Decode(tu1_s1.bitstream)), |
| ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec_s2.Decode(tu1_s2.bitstream)), |
| ResolutionIs(640, 360)); |
| |
| EncOut tu2_s0; |
| EncOut tu2_s1; |
| EncOut tu2_s2; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(200)}, |
| ToVec({Fb().Rate(kCbr).Res(160, 90).S(0).Ref({0}).Upd(0).Out(tu2_s0), |
| Fb().Rate(kCbr).Res(320, 180).S(1).Ref({1}).Upd(1).Out(tu2_s1), |
| Fb().Rate(kCbr).Res(640, 360).S(2).Ref({2}).Upd(2).Out(tu2_s2)})); |
| |
| EXPECT_THAT(Resolution(dec_s0.Decode(tu2_s0.bitstream)), |
| ResolutionIs(160, 90)); |
| EXPECT_THAT(Resolution(dec_s1.Decode(tu2_s1.bitstream)), |
| ResolutionIs(320, 180)); |
| EXPECT_THAT(Resolution(dec_s2.Decode(tu2_s2.bitstream)), |
| ResolutionIs(640, 360)); |
| } |
| |
| TEST(LibaomAv1Encoder, HigherEffortLevelYieldsHigherQualityFrames) { |
| auto frame_in = CreateFrameReader()->PullFrame(); |
| std::pair<int, int> effort_range = LibaomAv1EncoderFactory() |
| .GetEncoderCapabilities() |
| .performance.min_max_effort_level; |
| // Cbr rc{.duration = TimeDelta::Millis(100), |
| // .target_bitrate = DataRate::KilobitsPerSec(100)}; |
| std::optional<double> psnr_last; |
| Av1Decoder dec; |
| |
| for (int i = effort_range.first; i <= effort_range.second; ++i) { |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| EncOut tu0; |
| enc->Encode( |
| frame_in, {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kCbr).Res(640, 360).Upd(0).Key().Effort(i).Out(tu0)})); |
| double psnr = Psnr(frame_in, dec.Decode(tu0.bitstream)); |
| EXPECT_THAT(psnr, Gt(psnr_last)); |
| psnr_last = psnr; |
| } |
| } |
| |
| TEST(LibaomAv1Encoder, KeyframeAndStartrameAreApproximatelyEqual) { |
| int max_spatial_layers = LibaomAv1EncoderFactory() |
| .GetEncoderCapabilities() |
| .prediction_constraints.max_spatial_layers; |
| const Cbr kRate{.duration = TimeDelta::Millis(100), |
| .target_bitrate = DataRate::KilobitsPerSec(500)}; |
| |
| for (int sid = 0; sid < max_spatial_layers; ++sid) { |
| std::string key_name = "cbr_key_sl_"; |
| key_name += std::to_string(sid); |
| Av1Decoder dec_key(key_name); |
| |
| std::string start_name = "cbr_start_sl_"; |
| start_name += std::to_string(sid); |
| Av1Decoder dec_start(start_name); |
| |
| auto frame_reader = CreateFrameReader(); |
| auto enc_key = |
| LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| auto enc_start = |
| LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| DataSize total_size_key = DataSize::Zero(); |
| DataSize total_size_start = DataSize::Zero(); |
| TimeDelta total_duration = TimeDelta::Zero(); |
| auto frame_in = frame_reader->PullFrame(); |
| |
| EncOut key; |
| EncOut start; |
| enc_key->Encode( |
| frame_in, {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kRate).Res(640, 360).S(sid).Upd(0).Key().Out(key)})); |
| enc_start->Encode( |
| frame_in, {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec( |
| {Fb().Rate(kRate).Res(640, 360).S(sid).Start().Upd(0).Out(start)})); |
| |
| total_size_key += DataSize::Bytes(key.bitstream.size()); |
| total_size_start += DataSize::Bytes(start.bitstream.size()); |
| |
| total_duration += kRate.duration; |
| dec_key.Decode(key.bitstream); |
| dec_start.Decode(start.bitstream); |
| |
| EXPECT_NEAR(total_size_key.bytes(), total_size_start.bytes(), |
| 0.1 * total_size_key.bytes()); |
| |
| for (int f = 1; f < 10; ++f) { |
| frame_in = frame_reader->PullFrame(); |
| enc_key->Encode( |
| frame_in, {.presentation_timestamp = Timestamp::Millis(f * 100)}, |
| ToVec({Fb().Rate(kRate).Res(640, 360).S(sid).Ref({0}).Upd(0).Out( |
| key)})); |
| enc_start->Encode( |
| frame_in, {.presentation_timestamp = Timestamp::Millis(f * 100)}, |
| ToVec({Fb().Rate(kRate).Res(640, 360).S(sid).Ref({0}).Upd(0).Out( |
| start)})); |
| total_size_key += DataSize::Bytes(key.bitstream.size()); |
| total_size_start += DataSize::Bytes(start.bitstream.size()); |
| |
| total_duration += kRate.duration; |
| dec_key.Decode(key.bitstream); |
| dec_start.Decode(start.bitstream); |
| } |
| |
| double key_encode_kbps = (total_size_key / total_duration).kbps(); |
| double start_encode_kbps = (total_size_start / total_duration).kbps(); |
| |
| EXPECT_NEAR(key_encode_kbps, start_encode_kbps, start_encode_kbps * 0.05); |
| } |
| } |
| |
| TEST(LibaomAv1Encoder, BitrateConsistentAcrossSpatialLayers) { |
| int max_spatial_layers = LibaomAv1EncoderFactory() |
| .GetEncoderCapabilities() |
| .prediction_constraints.max_spatial_layers; |
| const Cbr kRate{.duration = TimeDelta::Millis(100), |
| .target_bitrate = DataRate::KilobitsPerSec(500)}; |
| |
| for (int sid = 0; sid < max_spatial_layers; ++sid) { |
| std::string out_name = "cbr_sl_"; |
| out_name += std::to_string(sid); |
| |
| auto frame_reader = CreateFrameReader(); |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCbrEncoderSettings, {}); |
| DataSize total_size = DataSize::Zero(); |
| TimeDelta total_duration = TimeDelta::Zero(); |
| |
| EncOut out; |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(kRate).Res(640, 360).S(sid).Upd(0).Key().Out(out)})); |
| total_size += DataSize::Bytes(out.bitstream.size()); |
| total_duration += kRate.duration; |
| |
| for (int f = 1; f < 30; ++f) { |
| enc->Encode( |
| frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(f * 100)}, |
| ToVec({Fb().Rate(kRate).Res(640, 360).S(sid).Ref({0}).Upd(0).Out( |
| out)})); |
| total_size += DataSize::Bytes(out.bitstream.size()); |
| total_duration += kRate.duration; |
| } |
| |
| double encode_kbps = (total_size / total_duration).kbps(); |
| double target_kbps = kRate.target_bitrate.kbps(); |
| |
| EXPECT_NEAR(encode_kbps, target_kbps, target_kbps * 0.1); |
| } |
| } |
| |
| TEST(LibaomAv1Encoder, ConstantQp) { |
| int max_spatial_layers = LibaomAv1EncoderFactory() |
| .GetEncoderCapabilities() |
| .prediction_constraints.max_spatial_layers; |
| constexpr int kQp = 30; |
| for (int sid = 0; sid < max_spatial_layers; ++sid) { |
| auto enc = LibaomAv1EncoderFactory().CreateEncoder(kCqpEncoderSettings, {}); |
| std::string out_name = "cqp_sl_"; |
| out_name += std::to_string(sid); |
| auto frame_reader = CreateFrameReader(); |
| |
| EncOut out; |
| enc->Encode(frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(0)}, |
| ToVec({Fb().Rate(Cqp{.target_qp = kQp}) |
| .Res(640, 360) |
| .S(sid) |
| .Upd(0) |
| .Key() |
| .Out(out)})); |
| EXPECT_THAT(out, QpIs(kQp)); |
| |
| for (int f = 1; f < 10; ++f) { |
| enc->Encode(frame_reader->PullFrame(), |
| {.presentation_timestamp = Timestamp::Millis(f * 100)}, |
| ToVec({Fb().Rate(Cqp{.target_qp = kQp - f}) |
| .Res(640, 360) |
| .S(sid) |
| .Ref({0}) |
| .Upd(0) |
| .Out(out)})); |
| EXPECT_THAT(out, QpIs(kQp - f)); |
| } |
| } |
| } |
| |
| } // namespace |
| } // namespace webrtc |
