| /* |
| * Copyright (c) 2012 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. |
| */ |
| |
| #ifndef WEBRTC_MODULES_VIDEO_CODING_CODECS_TEST_VIDEOPROCESSOR_INTEGRATIONTEST_H_ |
| #define WEBRTC_MODULES_VIDEO_CODING_CODECS_TEST_VIDEOPROCESSOR_INTEGRATIONTEST_H_ |
| |
| #include <math.h> |
| |
| #include <limits> |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| #if defined(WEBRTC_ANDROID) |
| #include "webrtc/modules/video_coding/codecs/test/android_test_initializer.h" |
| #include "webrtc/sdk/android/src/jni/androidmediadecoder_jni.h" |
| #include "webrtc/sdk/android/src/jni/androidmediaencoder_jni.h" |
| #elif defined(WEBRTC_IOS) |
| #include "webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_decoder.h" |
| #include "webrtc/sdk/objc/Framework/Classes/h264_video_toolbox_encoder.h" |
| #endif |
| |
| #include "webrtc/base/checks.h" |
| #include "webrtc/base/file.h" |
| #include "webrtc/base/logging.h" |
| #include "webrtc/media/engine/webrtcvideodecoderfactory.h" |
| #include "webrtc/media/engine/webrtcvideoencoderfactory.h" |
| #include "webrtc/modules/video_coding/codecs/h264/include/h264.h" |
| #include "webrtc/modules/video_coding/codecs/test/packet_manipulator.h" |
| #include "webrtc/modules/video_coding/codecs/test/videoprocessor.h" |
| #include "webrtc/modules/video_coding/codecs/vp8/include/vp8.h" |
| #include "webrtc/modules/video_coding/codecs/vp8/include/vp8_common_types.h" |
| #include "webrtc/modules/video_coding/codecs/vp9/include/vp9.h" |
| #include "webrtc/modules/video_coding/include/video_codec_interface.h" |
| #include "webrtc/modules/video_coding/include/video_coding.h" |
| #include "webrtc/modules/video_coding/utility/ivf_file_writer.h" |
| #include "webrtc/test/gtest.h" |
| #include "webrtc/test/testsupport/fileutils.h" |
| #include "webrtc/test/testsupport/frame_reader.h" |
| #include "webrtc/test/testsupport/frame_writer.h" |
| #include "webrtc/test/testsupport/metrics/video_metrics.h" |
| #include "webrtc/test/testsupport/packet_reader.h" |
| #include "webrtc/typedefs.h" |
| |
| namespace webrtc { |
| namespace test { |
| // Maximum number of rate updates (i.e., calls to encoder to change bitrate |
| // and/or frame rate) for the current tests. |
| const int kMaxNumRateUpdates = 3; |
| |
| // Maximum number of temporal layers to use in tests. |
| const int kMaxNumTemporalLayers = 3; |
| |
| const int kPercTargetvsActualMismatch = 20; |
| const int kBaseKeyFrameInterval = 3000; |
| |
| // Default sequence is foreman (CIF): may be better to use VGA for resize test. |
| const int kCifWidth = 352; |
| const int kCifHeight = 288; |
| const char kFilenameForemanCif[] = "foreman_cif"; |
| |
| // Codec and network settings. |
| struct CodecParams { |
| VideoCodecType codec_type; |
| bool hw_codec; |
| bool use_single_core; |
| |
| int width; |
| int height; |
| |
| int num_temporal_layers; |
| int key_frame_interval; |
| bool error_concealment_on; |
| bool denoising_on; |
| bool frame_dropper_on; |
| bool spatial_resize_on; |
| |
| float packet_loss_probability; // [0.0, 1.0]. |
| |
| std::string filename; |
| bool verbose_logging; |
| |
| // In batch mode, the VideoProcessor is fed all the frames for processing |
| // before any metrics are calculated. This is useful for pipelining HW codecs, |
| // for which some calculated metrics otherwise would be incorrect. The |
| // downside with batch mode is that mid-test rate allocation is not supported. |
| bool batch_mode; |
| }; |
| |
| // Thresholds for the quality metrics. Defaults are maximally minimal. |
| struct QualityThresholds { |
| double min_avg_psnr = std::numeric_limits<double>::min(); |
| double min_min_psnr = std::numeric_limits<double>::min(); |
| double min_avg_ssim = 0; |
| double min_min_ssim = 0; |
| }; |
| |
| // The sequence of bit rate and frame rate changes for the encoder, the frame |
| // number where the changes are made, and the total number of frames for the |
| // test. |
| struct RateProfile { |
| int target_bit_rate[kMaxNumRateUpdates]; |
| int input_frame_rate[kMaxNumRateUpdates]; |
| int frame_index_rate_update[kMaxNumRateUpdates + 1]; |
| int num_frames; |
| }; |
| |
| // Thresholds for the rate control metrics. The rate mismatch thresholds are |
| // defined as percentages. |max_time_hit_target| is defined as number of frames, |
| // after a rate update is made to the encoder, for the encoder to reach within |
| // |kPercTargetvsActualMismatch| of new target rate. The thresholds are defined |
| // for each rate update sequence. |
| struct RateControlThresholds { |
| int max_num_dropped_frames; |
| int max_key_frame_size_mismatch; |
| int max_delta_frame_size_mismatch; |
| int max_encoding_rate_mismatch; |
| int max_time_hit_target; |
| int num_spatial_resizes; // Set to -1 to disable check. |
| int num_key_frames; // Set to -1 to disable check. |
| }; |
| |
| // Should video files be saved persistently to disk for post-run visualization? |
| struct VisualizationParams { |
| bool save_source_y4m; |
| bool save_encoded_ivf; |
| bool save_decoded_y4m; |
| }; |
| |
| #if !defined(WEBRTC_IOS) |
| const int kNumFramesShort = 100; |
| #endif |
| const int kNumFramesLong = 299; |
| |
| // Parameters from VP8 wrapper, which control target size of key frames. |
| const float kInitialBufferSize = 0.5f; |
| const float kOptimalBufferSize = 0.6f; |
| const float kScaleKeyFrameSize = 0.5f; |
| |
| // Integration test for video processor. Encodes+decodes a clip and |
| // writes it to the output directory. After completion, quality metrics |
| // (PSNR and SSIM) and rate control metrics are computed and compared to given |
| // thresholds, to verify that the quality and encoder response is acceptable. |
| // The rate control tests allow us to verify the behavior for changing bit rate, |
| // changing frame rate, frame dropping/spatial resize, and temporal layers. |
| // The thresholds for the rate control metrics are set to be fairly |
| // conservative, so failure should only happen when some significant regression |
| // or breakdown occurs. |
| class VideoProcessorIntegrationTest : public testing::Test { |
| protected: |
| VideoProcessorIntegrationTest() { |
| #if defined(WEBRTC_VIDEOPROCESSOR_INTEGRATIONTEST_HW_CODECS_ENABLED) && \ |
| defined(WEBRTC_ANDROID) |
| InitializeAndroidObjects(); |
| |
| external_encoder_factory_.reset( |
| new webrtc_jni::MediaCodecVideoEncoderFactory()); |
| external_decoder_factory_.reset( |
| new webrtc_jni::MediaCodecVideoDecoderFactory()); |
| #endif |
| } |
| virtual ~VideoProcessorIntegrationTest() = default; |
| |
| void CreateEncoderAndDecoder(bool hw_codec, VideoCodecType codec_type) { |
| if (hw_codec) { |
| #if defined(WEBRTC_VIDEOPROCESSOR_INTEGRATIONTEST_HW_CODECS_ENABLED) |
| #if defined(WEBRTC_ANDROID) |
| // In general, external codecs should be destroyed by the factories that |
| // allocated them. For the particular case of the Android |
| // MediaCodecVideo{En,De}coderFactory's, however, it turns out that it is |
| // fine for the std::unique_ptr to destroy the owned codec directly. |
| switch (codec_type) { |
| case kVideoCodecH264: |
| encoder_.reset(external_encoder_factory_->CreateVideoEncoder( |
| cricket::VideoCodec(cricket::kH264CodecName))); |
| decoder_.reset( |
| external_decoder_factory_->CreateVideoDecoder(kVideoCodecH264)); |
| break; |
| case kVideoCodecVP8: |
| encoder_.reset(external_encoder_factory_->CreateVideoEncoder( |
| cricket::VideoCodec(cricket::kVp8CodecName))); |
| decoder_.reset( |
| external_decoder_factory_->CreateVideoDecoder(kVideoCodecVP8)); |
| break; |
| case kVideoCodecVP9: |
| encoder_.reset(external_encoder_factory_->CreateVideoEncoder( |
| cricket::VideoCodec(cricket::kVp9CodecName))); |
| decoder_.reset( |
| external_decoder_factory_->CreateVideoDecoder(kVideoCodecVP9)); |
| break; |
| default: |
| RTC_NOTREACHED(); |
| break; |
| } |
| #elif defined(WEBRTC_IOS) |
| ASSERT_EQ(kVideoCodecH264, codec_type) |
| << "iOS HW codecs only support H264."; |
| encoder_.reset(new H264VideoToolboxEncoder( |
| cricket::VideoCodec(cricket::kH264CodecName))); |
| decoder_.reset(new H264VideoToolboxDecoder()); |
| #else |
| RTC_NOTREACHED() << "Only support HW codecs on Android and iOS."; |
| #endif |
| #endif // WEBRTC_VIDEOPROCESSOR_INTEGRATIONTEST_HW_CODECS_ENABLED |
| RTC_CHECK(encoder_) << "HW encoder not successfully created."; |
| RTC_CHECK(decoder_) << "HW decoder not successfully created."; |
| return; |
| } |
| |
| // SW codecs. |
| switch (codec_type) { |
| case kVideoCodecH264: |
| encoder_.reset( |
| H264Encoder::Create(cricket::VideoCodec(cricket::kH264CodecName))); |
| decoder_.reset(H264Decoder::Create()); |
| break; |
| case kVideoCodecVP8: |
| encoder_.reset(VP8Encoder::Create()); |
| decoder_.reset(VP8Decoder::Create()); |
| break; |
| case kVideoCodecVP9: |
| encoder_.reset(VP9Encoder::Create()); |
| decoder_.reset(VP9Decoder::Create()); |
| break; |
| default: |
| RTC_NOTREACHED(); |
| break; |
| } |
| } |
| |
| void SetUpCodecConfig(const CodecParams& process, |
| const VisualizationParams* visualization_params) { |
| CreateEncoderAndDecoder(process.hw_codec, process.codec_type); |
| |
| // Configure input filename. |
| config_.input_filename = test::ResourcePath(process.filename, "yuv"); |
| if (process.verbose_logging) |
| printf("Filename: %s\n", process.filename.c_str()); |
| // Generate an output filename in a safe way. |
| config_.output_filename = test::TempFilename( |
| test::OutputPath(), "videoprocessor_integrationtest"); |
| |
| config_.frame_length_in_bytes = |
| CalcBufferSize(kI420, process.width, process.height); |
| config_.verbose = process.verbose_logging; |
| config_.use_single_core = process.use_single_core; |
| // Key frame interval and packet loss are set for each test. |
| config_.keyframe_interval = process.key_frame_interval; |
| config_.networking_config.packet_loss_probability = |
| packet_loss_probability_; |
| |
| // Configure codec settings. |
| VideoCodingModule::Codec(process.codec_type, &codec_settings_); |
| config_.codec_settings = &codec_settings_; |
| config_.codec_settings->startBitrate = start_bitrate_; |
| config_.codec_settings->width = process.width; |
| config_.codec_settings->height = process.height; |
| |
| // These features may be set depending on the test. |
| switch (config_.codec_settings->codecType) { |
| case kVideoCodecH264: |
| config_.codec_settings->H264()->frameDroppingOn = |
| process.frame_dropper_on; |
| config_.codec_settings->H264()->keyFrameInterval = |
| kBaseKeyFrameInterval; |
| break; |
| case kVideoCodecVP8: |
| config_.codec_settings->VP8()->errorConcealmentOn = |
| process.error_concealment_on; |
| config_.codec_settings->VP8()->denoisingOn = process.denoising_on; |
| config_.codec_settings->VP8()->numberOfTemporalLayers = |
| num_temporal_layers_; |
| config_.codec_settings->VP8()->frameDroppingOn = |
| process.frame_dropper_on; |
| config_.codec_settings->VP8()->automaticResizeOn = |
| process.spatial_resize_on; |
| config_.codec_settings->VP8()->keyFrameInterval = kBaseKeyFrameInterval; |
| break; |
| case kVideoCodecVP9: |
| config_.codec_settings->VP9()->denoisingOn = process.denoising_on; |
| config_.codec_settings->VP9()->numberOfTemporalLayers = |
| num_temporal_layers_; |
| config_.codec_settings->VP9()->frameDroppingOn = |
| process.frame_dropper_on; |
| config_.codec_settings->VP9()->automaticResizeOn = |
| process.spatial_resize_on; |
| config_.codec_settings->VP9()->keyFrameInterval = kBaseKeyFrameInterval; |
| break; |
| default: |
| RTC_NOTREACHED(); |
| break; |
| } |
| |
| // Create file objects for quality analysis. |
| analysis_frame_reader_.reset(new test::YuvFrameReaderImpl( |
| config_.input_filename, config_.codec_settings->width, |
| config_.codec_settings->height)); |
| analysis_frame_writer_.reset(new test::YuvFrameWriterImpl( |
| config_.output_filename, config_.codec_settings->width, |
| config_.codec_settings->height)); |
| RTC_CHECK(analysis_frame_reader_->Init()); |
| RTC_CHECK(analysis_frame_writer_->Init()); |
| |
| if (visualization_params) { |
| // clang-format off |
| const std::string output_filename_base = |
| test::OutputPath() + process.filename + |
| "_cd-" + CodecTypeToPayloadName(process.codec_type).value_or("") + |
| "_hw-" + std::to_string(process.hw_codec) + |
| "_fr-" + std::to_string(start_frame_rate_) + |
| "_br-" + std::to_string(static_cast<int>(start_bitrate_)); |
| // clang-format on |
| if (visualization_params->save_source_y4m) { |
| source_frame_writer_.reset(new test::Y4mFrameWriterImpl( |
| output_filename_base + "_source.y4m", config_.codec_settings->width, |
| config_.codec_settings->height, start_frame_rate_)); |
| RTC_CHECK(source_frame_writer_->Init()); |
| } |
| if (visualization_params->save_encoded_ivf) { |
| rtc::File post_encode_file = |
| rtc::File::Create(output_filename_base + "_encoded.ivf"); |
| encoded_frame_writer_ = |
| IvfFileWriter::Wrap(std::move(post_encode_file), 0); |
| } |
| if (visualization_params->save_decoded_y4m) { |
| decoded_frame_writer_.reset(new test::Y4mFrameWriterImpl( |
| output_filename_base + "_decoded.y4m", |
| config_.codec_settings->width, config_.codec_settings->height, |
| start_frame_rate_)); |
| RTC_CHECK(decoded_frame_writer_->Init()); |
| } |
| } |
| |
| packet_manipulator_.reset(new test::PacketManipulatorImpl( |
| &packet_reader_, config_.networking_config, config_.verbose)); |
| processor_.reset(new test::VideoProcessorImpl( |
| encoder_.get(), decoder_.get(), analysis_frame_reader_.get(), |
| analysis_frame_writer_.get(), packet_manipulator_.get(), config_, |
| &stats_, source_frame_writer_.get(), encoded_frame_writer_.get(), |
| decoded_frame_writer_.get())); |
| RTC_CHECK(processor_->Init()); |
| } |
| |
| // Reset quantities after each encoder update, update the target |
| // per-frame bandwidth. |
| void ResetRateControlMetrics(int num_frames_to_hit_target) { |
| for (int i = 0; i < num_temporal_layers_; i++) { |
| num_frames_per_update_[i] = 0; |
| sum_frame_size_mismatch_[i] = 0.0f; |
| sum_encoded_frame_size_[i] = 0.0f; |
| encoding_bitrate_[i] = 0.0f; |
| // Update layer per-frame-bandwidth. |
| per_frame_bandwidth_[i] = static_cast<float>(bit_rate_layer_[i]) / |
| static_cast<float>(frame_rate_layer_[i]); |
| } |
| // Set maximum size of key frames, following setting in the VP8 wrapper. |
| float max_key_size = kScaleKeyFrameSize * kOptimalBufferSize * frame_rate_; |
| // We don't know exact target size of the key frames (except for first one), |
| // but the minimum in libvpx is ~|3 * per_frame_bandwidth| and maximum is |
| // set by |max_key_size_ * per_frame_bandwidth|. Take middle point/average |
| // as reference for mismatch. Note key frames always correspond to base |
| // layer frame in this test. |
| target_size_key_frame_ = 0.5 * (3 + max_key_size) * per_frame_bandwidth_[0]; |
| num_frames_total_ = 0; |
| sum_encoded_frame_size_total_ = 0.0f; |
| encoding_bitrate_total_ = 0.0f; |
| perc_encoding_rate_mismatch_ = 0.0f; |
| num_frames_to_hit_target_ = num_frames_to_hit_target; |
| encoding_rate_within_target_ = false; |
| sum_key_frame_size_mismatch_ = 0.0; |
| num_key_frames_ = 0; |
| } |
| |
| // For every encoded frame, update the rate control metrics. |
| void UpdateRateControlMetrics(int frame_number) { |
| RTC_CHECK_GE(frame_number, 0); |
| int tl_idx = TemporalLayerIndexForFrame(frame_number); |
| FrameType frame_type = processor_->EncodedFrameType(frame_number); |
| float encoded_size_kbits = |
| processor_->EncodedFrameSize(frame_number) * 8.0f / 1000.0f; |
| |
| // Update layer data. |
| // Update rate mismatch relative to per-frame bandwidth for delta frames. |
| if (frame_type == kVideoFrameDelta) { |
| // TODO(marpan): Should we count dropped (zero size) frames in mismatch? |
| sum_frame_size_mismatch_[tl_idx] += |
| fabs(encoded_size_kbits - per_frame_bandwidth_[tl_idx]) / |
| per_frame_bandwidth_[tl_idx]; |
| } else { |
| float target_size = (frame_number == 0) ? target_size_key_frame_initial_ |
| : target_size_key_frame_; |
| sum_key_frame_size_mismatch_ += |
| fabs(encoded_size_kbits - target_size) / target_size; |
| num_key_frames_ += 1; |
| } |
| sum_encoded_frame_size_[tl_idx] += encoded_size_kbits; |
| // Encoding bit rate per temporal layer: from the start of the update/run |
| // to the current frame. |
| encoding_bitrate_[tl_idx] = sum_encoded_frame_size_[tl_idx] * |
| frame_rate_layer_[tl_idx] / |
| num_frames_per_update_[tl_idx]; |
| // Total encoding rate: from the start of the update/run to current frame. |
| sum_encoded_frame_size_total_ += encoded_size_kbits; |
| encoding_bitrate_total_ = |
| sum_encoded_frame_size_total_ * frame_rate_ / num_frames_total_; |
| perc_encoding_rate_mismatch_ = |
| 100 * fabs(encoding_bitrate_total_ - bit_rate_) / bit_rate_; |
| if (perc_encoding_rate_mismatch_ < kPercTargetvsActualMismatch && |
| !encoding_rate_within_target_) { |
| num_frames_to_hit_target_ = num_frames_total_; |
| encoding_rate_within_target_ = true; |
| } |
| } |
| |
| // Verify expected behavior of rate control and print out data. |
| void VerifyRateControlMetrics(int update_index, |
| const RateControlThresholds& rc_expected) { |
| int num_dropped_frames = processor_->NumberDroppedFrames(); |
| int num_resize_actions = processor_->NumberSpatialResizes(); |
| printf( |
| "For update #: %d,\n" |
| " Target Bitrate: %d,\n" |
| " Encoding bitrate: %f,\n" |
| " Frame rate: %d \n", |
| update_index, bit_rate_, encoding_bitrate_total_, frame_rate_); |
| printf( |
| " Number of frames to approach target rate: %d, \n" |
| " Number of dropped frames: %d, \n" |
| " Number of spatial resizes: %d, \n", |
| num_frames_to_hit_target_, num_dropped_frames, num_resize_actions); |
| EXPECT_LE(perc_encoding_rate_mismatch_, |
| rc_expected.max_encoding_rate_mismatch); |
| if (num_key_frames_ > 0) { |
| int perc_key_frame_size_mismatch = |
| 100 * sum_key_frame_size_mismatch_ / num_key_frames_; |
| printf( |
| " Number of Key frames: %d \n" |
| " Key frame rate mismatch: %d \n", |
| num_key_frames_, perc_key_frame_size_mismatch); |
| EXPECT_LE(perc_key_frame_size_mismatch, |
| rc_expected.max_key_frame_size_mismatch); |
| } |
| printf("\n"); |
| printf("Rates statistics for Layer data \n"); |
| for (int i = 0; i < num_temporal_layers_; i++) { |
| printf("Temporal layer #%d \n", i); |
| int perc_frame_size_mismatch = |
| 100 * sum_frame_size_mismatch_[i] / num_frames_per_update_[i]; |
| int perc_encoding_rate_mismatch = |
| 100 * fabs(encoding_bitrate_[i] - bit_rate_layer_[i]) / |
| bit_rate_layer_[i]; |
| printf( |
| " Target Layer Bit rate: %f \n" |
| " Layer frame rate: %f, \n" |
| " Layer per frame bandwidth: %f, \n" |
| " Layer Encoding bit rate: %f, \n" |
| " Layer Percent frame size mismatch: %d, \n" |
| " Layer Percent encoding rate mismatch: %d, \n" |
| " Number of frame processed per layer: %d \n", |
| bit_rate_layer_[i], frame_rate_layer_[i], per_frame_bandwidth_[i], |
| encoding_bitrate_[i], perc_frame_size_mismatch, |
| perc_encoding_rate_mismatch, num_frames_per_update_[i]); |
| EXPECT_LE(perc_frame_size_mismatch, |
| rc_expected.max_delta_frame_size_mismatch); |
| EXPECT_LE(perc_encoding_rate_mismatch, |
| rc_expected.max_encoding_rate_mismatch); |
| } |
| printf("\n"); |
| EXPECT_LE(num_frames_to_hit_target_, rc_expected.max_time_hit_target); |
| EXPECT_LE(num_dropped_frames, rc_expected.max_num_dropped_frames); |
| if (rc_expected.num_spatial_resizes >= 0) { |
| EXPECT_EQ(rc_expected.num_spatial_resizes, num_resize_actions); |
| } |
| if (rc_expected.num_key_frames >= 0) { |
| EXPECT_EQ(rc_expected.num_key_frames, num_key_frames_); |
| } |
| } |
| |
| void VerifyQuality(const test::QualityMetricsResult& psnr_result, |
| const test::QualityMetricsResult& ssim_result, |
| const QualityThresholds& quality_thresholds) { |
| EXPECT_GT(psnr_result.average, quality_thresholds.min_avg_psnr); |
| EXPECT_GT(psnr_result.min, quality_thresholds.min_min_psnr); |
| EXPECT_GT(ssim_result.average, quality_thresholds.min_avg_ssim); |
| EXPECT_GT(ssim_result.min, quality_thresholds.min_min_ssim); |
| } |
| |
| // Temporal layer index corresponding to frame number, for up to 3 layers. |
| int TemporalLayerIndexForFrame(int frame_number) { |
| int tl_idx = -1; |
| switch (num_temporal_layers_) { |
| case 1: |
| tl_idx = 0; |
| break; |
| case 2: |
| // temporal layer 0: 0 2 4 ... |
| // temporal layer 1: 1 3 |
| tl_idx = (frame_number % 2 == 0) ? 0 : 1; |
| break; |
| case 3: |
| // temporal layer 0: 0 4 8 ... |
| // temporal layer 1: 2 6 |
| // temporal layer 2: 1 3 5 7 |
| if (frame_number % 4 == 0) { |
| tl_idx = 0; |
| } else if ((frame_number + 2) % 4 == 0) { |
| tl_idx = 1; |
| } else if ((frame_number + 1) % 2 == 0) { |
| tl_idx = 2; |
| } |
| break; |
| default: |
| RTC_NOTREACHED(); |
| break; |
| } |
| return tl_idx; |
| } |
| |
| // Set the bit rate and frame rate per temporal layer, for up to 3 layers. |
| void SetTemporalLayerRates() { |
| RTC_DCHECK_LE(num_temporal_layers_, kMaxNumTemporalLayers); |
| for (int i = 0; i < num_temporal_layers_; i++) { |
| float bit_rate_ratio = |
| kVp8LayerRateAlloction[num_temporal_layers_ - 1][i]; |
| if (i > 0) { |
| float bit_rate_delta_ratio = |
| kVp8LayerRateAlloction[num_temporal_layers_ - 1][i] - |
| kVp8LayerRateAlloction[num_temporal_layers_ - 1][i - 1]; |
| bit_rate_layer_[i] = bit_rate_ * bit_rate_delta_ratio; |
| } else { |
| bit_rate_layer_[i] = bit_rate_ * bit_rate_ratio; |
| } |
| frame_rate_layer_[i] = |
| frame_rate_ / static_cast<float>(1 << (num_temporal_layers_ - 1)); |
| } |
| if (num_temporal_layers_ == 3) { |
| frame_rate_layer_[2] = frame_rate_ / 2.0f; |
| } |
| } |
| |
| // Processes all frames in the clip and verifies the result. |
| // TODO(brandtr): Change the second last argument to be a |
| // const std::vector<RateControlThresholds>&, so we can ensure that the user |
| // does not expect us to do mid-clip rate updates when we are not able to, |
| // e.g., when we are operating in batch mode. |
| void ProcessFramesAndVerify(QualityThresholds quality_thresholds, |
| RateProfile rate_profile, |
| CodecParams process, |
| RateControlThresholds* rc_thresholds, |
| const VisualizationParams* visualization_params) { |
| // Codec/config settings. |
| start_bitrate_ = rate_profile.target_bit_rate[0]; |
| start_frame_rate_ = rate_profile.input_frame_rate[0]; |
| packet_loss_probability_ = process.packet_loss_probability; |
| num_temporal_layers_ = process.num_temporal_layers; |
| SetUpCodecConfig(process, visualization_params); |
| // Update the temporal layers and the codec with the initial rates. |
| bit_rate_ = rate_profile.target_bit_rate[0]; |
| frame_rate_ = rate_profile.input_frame_rate[0]; |
| SetTemporalLayerRates(); |
| // Set the initial target size for key frame. |
| target_size_key_frame_initial_ = |
| 0.5 * kInitialBufferSize * bit_rate_layer_[0]; |
| processor_->SetRates(bit_rate_, frame_rate_); |
| |
| // Process each frame, up to |num_frames|. |
| int frame_number = 0; |
| int update_index = 0; |
| int num_frames = rate_profile.num_frames; |
| ResetRateControlMetrics( |
| rate_profile.frame_index_rate_update[update_index + 1]); |
| |
| if (process.batch_mode) { |
| // In batch mode, we calculate the metrics for all frames after all frames |
| // have been sent for encoding. |
| |
| // TODO(brandtr): Refactor "frame number accounting" so we don't have to |
| // call ProcessFrame num_frames+1 times here. |
| for (frame_number = 0; frame_number <= num_frames; ++frame_number) { |
| EXPECT_TRUE(processor_->ProcessFrame(frame_number)); |
| } |
| |
| for (frame_number = 0; frame_number < num_frames; ++frame_number) { |
| ++num_frames_per_update_[TemporalLayerIndexForFrame(frame_number)]; |
| ++num_frames_total_; |
| UpdateRateControlMetrics(frame_number); |
| } |
| } else { |
| // In online mode, we calculate the metrics for a given frame right after |
| // it has been sent for encoding. |
| |
| if (process.hw_codec) { |
| LOG(LS_WARNING) << "HW codecs should mostly be run in batch mode, " |
| "since they may be pipelining."; |
| } |
| |
| while (frame_number < num_frames) { |
| EXPECT_TRUE(processor_->ProcessFrame(frame_number)); |
| |
| ++num_frames_per_update_[TemporalLayerIndexForFrame(frame_number)]; |
| ++num_frames_total_; |
| UpdateRateControlMetrics(frame_number); |
| |
| ++frame_number; |
| |
| // If we hit another/next update, verify stats for current state and |
| // update layers and codec with new rates. |
| if (frame_number == |
| rate_profile.frame_index_rate_update[update_index + 1]) { |
| VerifyRateControlMetrics(update_index, rc_thresholds[update_index]); |
| |
| // Update layer rates and the codec with new rates. |
| ++update_index; |
| bit_rate_ = rate_profile.target_bit_rate[update_index]; |
| frame_rate_ = rate_profile.input_frame_rate[update_index]; |
| SetTemporalLayerRates(); |
| ResetRateControlMetrics( |
| rate_profile.frame_index_rate_update[update_index + 1]); |
| processor_->SetRates(bit_rate_, frame_rate_); |
| } |
| } |
| // TODO(brandtr): Refactor "frame number accounting" so we don't have to |
| // call ProcessFrame one extra time here. |
| EXPECT_TRUE(processor_->ProcessFrame(frame_number)); |
| } |
| |
| // Verify rate control metrics for all frames (if in batch mode), or for all |
| // frames since the last rate update (if not in batch mode). |
| VerifyRateControlMetrics(update_index, rc_thresholds[update_index]); |
| EXPECT_EQ(num_frames, frame_number); |
| EXPECT_EQ(num_frames + 1, static_cast<int>(stats_.stats_.size())); |
| |
| // Release encoder and decoder to make sure they have finished processing. |
| EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, encoder_->Release()); |
| EXPECT_EQ(WEBRTC_VIDEO_CODEC_OK, decoder_->Release()); |
| |
| // Close the analysis files before we use them for SSIM/PSNR calculations. |
| analysis_frame_reader_->Close(); |
| analysis_frame_writer_->Close(); |
| |
| // Close visualization files. |
| if (source_frame_writer_) { |
| source_frame_writer_->Close(); |
| } |
| if (encoded_frame_writer_) { |
| EXPECT_TRUE(encoded_frame_writer_->Close()); |
| } |
| if (decoded_frame_writer_) { |
| decoded_frame_writer_->Close(); |
| } |
| |
| // TODO(marpan): Should compute these quality metrics per SetRates update. |
| test::QualityMetricsResult psnr_result, ssim_result; |
| EXPECT_EQ(0, test::I420MetricsFromFiles(config_.input_filename.c_str(), |
| config_.output_filename.c_str(), |
| config_.codec_settings->width, |
| config_.codec_settings->height, |
| &psnr_result, &ssim_result)); |
| printf("PSNR avg: %f, min: %f\nSSIM avg: %f, min: %f\n", |
| psnr_result.average, psnr_result.min, ssim_result.average, |
| ssim_result.min); |
| VerifyQuality(psnr_result, ssim_result, quality_thresholds); |
| stats_.PrintSummary(); |
| |
| // Remove analysis file. |
| if (remove(config_.output_filename.c_str()) < 0) { |
| fprintf(stderr, "Failed to remove temporary file!\n"); |
| } |
| } |
| |
| static void SetCodecParams(CodecParams* process_settings, |
| VideoCodecType codec_type, |
| bool hw_codec, |
| bool use_single_core, |
| float packet_loss_probability, |
| int key_frame_interval, |
| int num_temporal_layers, |
| bool error_concealment_on, |
| bool denoising_on, |
| bool frame_dropper_on, |
| bool spatial_resize_on, |
| int width, |
| int height, |
| const std::string& filename, |
| bool verbose_logging, |
| bool batch_mode) { |
| process_settings->codec_type = codec_type; |
| process_settings->hw_codec = hw_codec; |
| process_settings->use_single_core = use_single_core; |
| process_settings->packet_loss_probability = packet_loss_probability; |
| process_settings->key_frame_interval = key_frame_interval; |
| process_settings->num_temporal_layers = num_temporal_layers, |
| process_settings->error_concealment_on = error_concealment_on; |
| process_settings->denoising_on = denoising_on; |
| process_settings->frame_dropper_on = frame_dropper_on; |
| process_settings->spatial_resize_on = spatial_resize_on; |
| process_settings->width = width; |
| process_settings->height = height; |
| process_settings->filename = filename; |
| process_settings->verbose_logging = verbose_logging; |
| process_settings->batch_mode = batch_mode; |
| } |
| |
| static void SetCodecParams(CodecParams* process_settings, |
| VideoCodecType codec_type, |
| bool hw_codec, |
| bool use_single_core, |
| float packet_loss_probability, |
| int key_frame_interval, |
| int num_temporal_layers, |
| bool error_concealment_on, |
| bool denoising_on, |
| bool frame_dropper_on, |
| bool spatial_resize_on) { |
| SetCodecParams(process_settings, codec_type, hw_codec, use_single_core, |
| packet_loss_probability, key_frame_interval, |
| num_temporal_layers, error_concealment_on, denoising_on, |
| frame_dropper_on, spatial_resize_on, kCifWidth, kCifHeight, |
| kFilenameForemanCif, false /* verbose_logging */, |
| false /* batch_mode */); |
| } |
| |
| static void SetQualityThresholds(QualityThresholds* quality_thresholds, |
| double min_avg_psnr, |
| double min_min_psnr, |
| double min_avg_ssim, |
| double min_min_ssim) { |
| quality_thresholds->min_avg_psnr = min_avg_psnr; |
| quality_thresholds->min_min_psnr = min_min_psnr; |
| quality_thresholds->min_avg_ssim = min_avg_ssim; |
| quality_thresholds->min_min_ssim = min_min_ssim; |
| } |
| |
| static void SetRateProfile(RateProfile* rate_profile, |
| int update_index, |
| int bit_rate, |
| int frame_rate, |
| int frame_index_rate_update) { |
| rate_profile->target_bit_rate[update_index] = bit_rate; |
| rate_profile->input_frame_rate[update_index] = frame_rate; |
| rate_profile->frame_index_rate_update[update_index] = |
| frame_index_rate_update; |
| } |
| |
| static void SetRateControlThresholds(RateControlThresholds* rc_thresholds, |
| int update_index, |
| int max_num_dropped_frames, |
| int max_key_frame_size_mismatch, |
| int max_delta_frame_size_mismatch, |
| int max_encoding_rate_mismatch, |
| int max_time_hit_target, |
| int num_spatial_resizes, |
| int num_key_frames) { |
| rc_thresholds[update_index].max_num_dropped_frames = max_num_dropped_frames; |
| rc_thresholds[update_index].max_key_frame_size_mismatch = |
| max_key_frame_size_mismatch; |
| rc_thresholds[update_index].max_delta_frame_size_mismatch = |
| max_delta_frame_size_mismatch; |
| rc_thresholds[update_index].max_encoding_rate_mismatch = |
| max_encoding_rate_mismatch; |
| rc_thresholds[update_index].max_time_hit_target = max_time_hit_target; |
| rc_thresholds[update_index].num_spatial_resizes = num_spatial_resizes; |
| rc_thresholds[update_index].num_key_frames = num_key_frames; |
| } |
| |
| // Codecs. |
| std::unique_ptr<VideoEncoder> encoder_; |
| std::unique_ptr<cricket::WebRtcVideoEncoderFactory> external_encoder_factory_; |
| std::unique_ptr<VideoDecoder> decoder_; |
| std::unique_ptr<cricket::WebRtcVideoDecoderFactory> external_decoder_factory_; |
| VideoCodec codec_settings_; |
| |
| // Helper objects. |
| std::unique_ptr<test::FrameReader> analysis_frame_reader_; |
| std::unique_ptr<test::FrameWriter> analysis_frame_writer_; |
| test::PacketReader packet_reader_; |
| std::unique_ptr<test::PacketManipulator> packet_manipulator_; |
| test::Stats stats_; |
| test::TestConfig config_; |
| // Must be destroyed before |encoder_| and |decoder_|. |
| std::unique_ptr<test::VideoProcessor> processor_; |
| |
| // Visualization objects. |
| std::unique_ptr<test::FrameWriter> source_frame_writer_; |
| std::unique_ptr<IvfFileWriter> encoded_frame_writer_; |
| std::unique_ptr<test::FrameWriter> decoded_frame_writer_; |
| |
| // Quantities defined/updated for every encoder rate update. |
| int num_frames_per_update_[kMaxNumTemporalLayers]; |
| float sum_frame_size_mismatch_[kMaxNumTemporalLayers]; |
| float sum_encoded_frame_size_[kMaxNumTemporalLayers]; |
| float encoding_bitrate_[kMaxNumTemporalLayers]; |
| float per_frame_bandwidth_[kMaxNumTemporalLayers]; |
| float bit_rate_layer_[kMaxNumTemporalLayers]; |
| float frame_rate_layer_[kMaxNumTemporalLayers]; |
| int num_frames_total_; |
| float sum_encoded_frame_size_total_; |
| float encoding_bitrate_total_; |
| float perc_encoding_rate_mismatch_; |
| int num_frames_to_hit_target_; |
| bool encoding_rate_within_target_; |
| int bit_rate_; |
| int frame_rate_; |
| float target_size_key_frame_initial_; |
| float target_size_key_frame_; |
| float sum_key_frame_size_mismatch_; |
| int num_key_frames_; |
| float start_bitrate_; |
| int start_frame_rate_; |
| |
| // Codec and network settings. |
| float packet_loss_probability_; |
| int num_temporal_layers_; |
| }; |
| |
| } // namespace test |
| } // namespace webrtc |
| |
| #endif // WEBRTC_MODULES_VIDEO_CODING_CODECS_TEST_VIDEOPROCESSOR_INTEGRATIONTEST_H_ |
