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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/libwebrtc/video/frame_decode_timing_unittest.cc | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/video/frame_decode_timing_unittest.cc')
-rw-r--r-- | third_party/libwebrtc/video/frame_decode_timing_unittest.cc | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/third_party/libwebrtc/video/frame_decode_timing_unittest.cc b/third_party/libwebrtc/video/frame_decode_timing_unittest.cc new file mode 100644 index 0000000000..83ea91692c --- /dev/null +++ b/third_party/libwebrtc/video/frame_decode_timing_unittest.cc @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2022 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 "video/frame_decode_timing.h" + +#include <stdint.h> + +#include "absl/types/optional.h" +#include "api/units/time_delta.h" +#include "modules/video_coding/timing/timing.h" +#include "rtc_base/containers/flat_map.h" +#include "test/gmock.h" +#include "test/gtest.h" +#include "test/scoped_key_value_config.h" +#include "video/video_receive_stream2.h" + +namespace webrtc { + +using ::testing::AllOf; +using ::testing::Eq; +using ::testing::Field; +using ::testing::Optional; + +namespace { + +class FakeVCMTiming : public webrtc::VCMTiming { + public: + explicit FakeVCMTiming(Clock* clock, const FieldTrialsView& field_trials) + : webrtc::VCMTiming(clock, field_trials) {} + + Timestamp RenderTime(uint32_t frame_timestamp, Timestamp now) const override { + RTC_DCHECK(render_time_map_.contains(frame_timestamp)); + auto it = render_time_map_.find(frame_timestamp); + return it->second; + } + + TimeDelta MaxWaitingTime(Timestamp render_time, + Timestamp now, + bool too_many_frames_queued) const override { + RTC_DCHECK(wait_time_map_.contains(render_time)); + auto it = wait_time_map_.find(render_time); + return it->second; + } + + void SetTimes(uint32_t frame_timestamp, + Timestamp render_time, + TimeDelta max_decode_wait) { + render_time_map_.insert_or_assign(frame_timestamp, render_time); + wait_time_map_.insert_or_assign(render_time, max_decode_wait); + } + + protected: + flat_map<uint32_t, Timestamp> render_time_map_; + flat_map<Timestamp, TimeDelta> wait_time_map_; +}; +} // namespace + +class FrameDecodeTimingTest : public ::testing::Test { + public: + FrameDecodeTimingTest() + : clock_(Timestamp::Millis(1000)), + timing_(&clock_, field_trials_), + frame_decode_scheduler_(&clock_, &timing_) {} + + protected: + test::ScopedKeyValueConfig field_trials_; + SimulatedClock clock_; + FakeVCMTiming timing_; + FrameDecodeTiming frame_decode_scheduler_; +}; + +TEST_F(FrameDecodeTimingTest, ReturnsWaitTimesWhenValid) { + const TimeDelta decode_delay = TimeDelta::Millis(42); + const Timestamp render_time = clock_.CurrentTime() + TimeDelta::Millis(60); + timing_.SetTimes(90000, render_time, decode_delay); + + EXPECT_THAT(frame_decode_scheduler_.OnFrameBufferUpdated( + 90000, 180000, kMaxWaitForFrame, false), + Optional(AllOf( + Field(&FrameDecodeTiming::FrameSchedule::latest_decode_time, + Eq(clock_.CurrentTime() + decode_delay)), + Field(&FrameDecodeTiming::FrameSchedule::render_time, + Eq(render_time))))); +} + +TEST_F(FrameDecodeTimingTest, FastForwardsFrameTooFarInThePast) { + const TimeDelta decode_delay = + -FrameDecodeTiming::kMaxAllowedFrameDelay - TimeDelta::Millis(1); + const Timestamp render_time = clock_.CurrentTime(); + timing_.SetTimes(90000, render_time, decode_delay); + + EXPECT_THAT(frame_decode_scheduler_.OnFrameBufferUpdated( + 90000, 180000, kMaxWaitForFrame, false), + Eq(absl::nullopt)); +} + +TEST_F(FrameDecodeTimingTest, NoFastForwardIfOnlyFrameToDecode) { + const TimeDelta decode_delay = + -FrameDecodeTiming::kMaxAllowedFrameDelay - TimeDelta::Millis(1); + const Timestamp render_time = clock_.CurrentTime(); + timing_.SetTimes(90000, render_time, decode_delay); + + // Negative `decode_delay` means that `latest_decode_time` is now. + EXPECT_THAT(frame_decode_scheduler_.OnFrameBufferUpdated( + 90000, 90000, kMaxWaitForFrame, false), + Optional(AllOf( + Field(&FrameDecodeTiming::FrameSchedule::latest_decode_time, + Eq(clock_.CurrentTime())), + Field(&FrameDecodeTiming::FrameSchedule::render_time, + Eq(render_time))))); +} + +TEST_F(FrameDecodeTimingTest, MaxWaitCapped) { + TimeDelta frame_delay = TimeDelta::Millis(30); + const TimeDelta decode_delay = TimeDelta::Seconds(3); + const Timestamp render_time = clock_.CurrentTime() + TimeDelta::Seconds(3); + timing_.SetTimes(90000, render_time, decode_delay); + timing_.SetTimes(180000, render_time + frame_delay, + decode_delay + frame_delay); + + EXPECT_THAT(frame_decode_scheduler_.OnFrameBufferUpdated( + 90000, 270000, kMaxWaitForFrame, false), + Optional(AllOf( + Field(&FrameDecodeTiming::FrameSchedule::latest_decode_time, + Eq(clock_.CurrentTime() + kMaxWaitForFrame)), + Field(&FrameDecodeTiming::FrameSchedule::render_time, + Eq(render_time))))); + + // Test cap keyframe. + clock_.AdvanceTime(frame_delay); + EXPECT_THAT(frame_decode_scheduler_.OnFrameBufferUpdated( + 180000, 270000, kMaxWaitForKeyFrame, false), + Optional(AllOf( + Field(&FrameDecodeTiming::FrameSchedule::latest_decode_time, + Eq(clock_.CurrentTime() + kMaxWaitForKeyFrame)), + Field(&FrameDecodeTiming::FrameSchedule::render_time, + Eq(render_time + frame_delay))))); +} + +} // namespace webrtc |