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This class will replace modules/video_coding/utility/framerate_controller.h Bug: webrtc:13031 Change-Id: I8faa9c3c158b7c5ab0618e3504224c7e00f8e0b1 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227350 Reviewed-by: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Åsa Persson <asapersson@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34802}
90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
/*
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* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "modules/video_coding/utility/framerate_controller_deprecated.h"
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#include <stddef.h>
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#include "test/gtest.h"
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namespace webrtc {
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TEST(FramerateControllerDeprecated, KeepTargetFramerate) {
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const float input_framerate_fps = 20;
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const float target_framerate_fps = 5;
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const float max_abs_framerate_error_fps = target_framerate_fps * 0.1f;
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const size_t input_duration_secs = 3;
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const size_t num_input_frames = input_duration_secs * input_framerate_fps;
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FramerateControllerDeprecated framerate_controller(target_framerate_fps);
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size_t num_dropped_frames = 0;
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for (size_t frame_num = 0; frame_num < num_input_frames; ++frame_num) {
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const uint32_t timestamp_ms =
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static_cast<uint32_t>(1000 * frame_num / input_framerate_fps);
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if (framerate_controller.DropFrame(timestamp_ms)) {
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++num_dropped_frames;
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} else {
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framerate_controller.AddFrame(timestamp_ms);
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}
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}
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const float output_framerate_fps =
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static_cast<float>(num_input_frames - num_dropped_frames) /
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input_duration_secs;
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EXPECT_NEAR(output_framerate_fps, target_framerate_fps,
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max_abs_framerate_error_fps);
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}
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TEST(FramerateControllerDeprecated, DoNotDropAnyFramesIfTargerEqualsInput) {
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const float input_framerate_fps = 30;
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const size_t input_duration_secs = 3;
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const size_t num_input_frames = input_duration_secs * input_framerate_fps;
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FramerateControllerDeprecated framerate_controller(input_framerate_fps);
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size_t num_dropped_frames = 0;
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for (size_t frame_num = 0; frame_num < num_input_frames; ++frame_num) {
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const uint32_t timestamp_ms =
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static_cast<uint32_t>(1000 * frame_num / input_framerate_fps);
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if (framerate_controller.DropFrame(timestamp_ms)) {
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++num_dropped_frames;
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} else {
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framerate_controller.AddFrame(timestamp_ms);
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}
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}
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EXPECT_EQ(num_dropped_frames, 0U);
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}
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TEST(FramerateControllerDeprecated, DoNotDropFrameWhenTimestampJumpsBackward) {
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FramerateControllerDeprecated framerate_controller(30);
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ASSERT_FALSE(framerate_controller.DropFrame(66));
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framerate_controller.AddFrame(66);
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EXPECT_FALSE(framerate_controller.DropFrame(33));
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}
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TEST(FramerateControllerDeprecated, DropFrameIfItIsTooCloseToPreviousFrame) {
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FramerateControllerDeprecated framerate_controller(30);
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ASSERT_FALSE(framerate_controller.DropFrame(33));
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framerate_controller.AddFrame(33);
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EXPECT_TRUE(framerate_controller.DropFrame(34));
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}
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TEST(FramerateControllerDeprecated, FrameDroppingStartsFromSecondInputFrame) {
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const float input_framerate_fps = 23;
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const float target_framerate_fps = 19;
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const uint32_t input_frame_duration_ms =
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static_cast<uint32_t>(1000 / input_framerate_fps);
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FramerateControllerDeprecated framerate_controller(target_framerate_fps);
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ASSERT_FALSE(framerate_controller.DropFrame(1 * input_frame_duration_ms));
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framerate_controller.AddFrame(1 * input_frame_duration_ms);
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EXPECT_TRUE(framerate_controller.DropFrame(2 * input_frame_duration_ms));
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}
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} // namespace webrtc
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