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| -rw-r--r-- | dom/media/gtest/TestVideoTrackEncoder.cpp | 1467 |
1 files changed, 1467 insertions, 0 deletions
diff --git a/dom/media/gtest/TestVideoTrackEncoder.cpp b/dom/media/gtest/TestVideoTrackEncoder.cpp new file mode 100644 index 0000000000..ee39213961 --- /dev/null +++ b/dom/media/gtest/TestVideoTrackEncoder.cpp @@ -0,0 +1,1467 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include <algorithm> + +#include "DriftCompensation.h" +#include "MediaTrackGraph.h" +#include "MediaTrackListener.h" +#include "VP8TrackEncoder.h" +#include "WebMWriter.h" // TODO: it's weird to include muxer header to get the class definition of VP8 METADATA +#include "gmock/gmock.h" +#include "gtest/gtest.h" +#include "mozilla/ArrayUtils.h" +#include "prtime.h" + +#include "YUVBufferGenerator.h" + +#define VIDEO_TRACK_RATE 90000 + +using ::testing::_; +using ::testing::Invoke; +using ::testing::NiceMock; +using ::testing::TestWithParam; +using ::testing::Values; + +using namespace mozilla::layers; +using namespace mozilla; + +struct InitParam { + bool mShouldSucceed; // This parameter should cause success or fail result + int mWidth; // frame width + int mHeight; // frame height +}; + +class MockDriftCompensator : public DriftCompensator { + public: + MockDriftCompensator() + : DriftCompensator(GetCurrentSerialEventTarget(), VIDEO_TRACK_RATE) { + ON_CALL(*this, GetVideoTime(_, _)) + .WillByDefault(Invoke([](TimeStamp, TimeStamp t) { return t; })); + } + + MOCK_METHOD2(GetVideoTime, TimeStamp(TimeStamp, TimeStamp)); +}; + +class TestVP8TrackEncoder : public VP8TrackEncoder { + public: + explicit TestVP8TrackEncoder(Maybe<float> aKeyFrameIntervalFactor = Nothing()) + : VP8TrackEncoder(MakeRefPtr<NiceMock<MockDriftCompensator>>(), + VIDEO_TRACK_RATE, mEncodedVideoQueue, + FrameDroppingMode::DISALLOW, aKeyFrameIntervalFactor) {} + + MockDriftCompensator* DriftCompensator() { + return static_cast<MockDriftCompensator*>(mDriftCompensator.get()); + } + + ::testing::AssertionResult TestInit(const InitParam& aParam) { + nsresult result = + Init(aParam.mWidth, aParam.mHeight, aParam.mWidth, aParam.mHeight, 30); + + if (((NS_FAILED(result) && aParam.mShouldSucceed)) || + (NS_SUCCEEDED(result) && !aParam.mShouldSucceed)) { + return ::testing::AssertionFailure() + << " width = " << aParam.mWidth << " height = " << aParam.mHeight; + } + + return ::testing::AssertionSuccess(); + } + + MediaQueue<EncodedFrame> mEncodedVideoQueue; +}; + +// Init test +TEST(VP8VideoTrackEncoder, Initialization) +{ + InitParam params[] = { + // Failure cases. + {false, 0, 0}, // Height/ width should be larger than 1. + {false, 0, 1}, // Height/ width should be larger than 1. + {false, 1, 0}, // Height/ width should be larger than 1. + + // Success cases + {true, 640, 480}, // Standard VGA + {true, 800, 480}, // Standard WVGA + {true, 960, 540}, // Standard qHD + {true, 1280, 720} // Standard HD + }; + + for (const InitParam& param : params) { + TestVP8TrackEncoder encoder; + EXPECT_TRUE(encoder.TestInit(param)); + } +} + +// Get MetaData test +TEST(VP8VideoTrackEncoder, FetchMetaData) +{ + InitParam params[] = { + // Success cases + {true, 640, 480}, // Standard VGA + {true, 800, 480}, // Standard WVGA + {true, 960, 540}, // Standard qHD + {true, 1280, 720} // Standard HD + }; + + for (const InitParam& param : params) { + TestVP8TrackEncoder encoder; + EXPECT_TRUE(encoder.TestInit(param)); + + RefPtr<TrackMetadataBase> meta = encoder.GetMetadata(); + RefPtr<VP8Metadata> vp8Meta(static_cast<VP8Metadata*>(meta.get())); + + // METADATA should be depend on how to initiate encoder. + EXPECT_EQ(vp8Meta->mWidth, param.mWidth); + EXPECT_EQ(vp8Meta->mHeight, param.mHeight); + } +} + +// Encode test +TEST(VP8VideoTrackEncoder, FrameEncode) +{ + TestVP8TrackEncoder encoder; + TimeStamp now = TimeStamp::Now(); + + // Create YUV images as source. + nsTArray<RefPtr<Image>> images; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + images.AppendElement(generator.GenerateI420Image()); + images.AppendElement(generator.GenerateNV12Image()); + images.AppendElement(generator.GenerateNV21Image()); + + // Put generated YUV frame into video segment. + // Duration of each frame is 1 second. + VideoSegment segment; + for (nsTArray<RefPtr<Image>>::size_type i = 0; i < images.Length(); i++) { + RefPtr<Image> image = images[i]; + segment.AppendFrame(image.forget(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(i)); + } + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(images.Length())); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that encoding a single frame gives useful output. +TEST(VP8VideoTrackEncoder, SingleFrameEncode) +{ + TestVP8TrackEncoder encoder; + TimeStamp now = TimeStamp::Now(); + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + + // Pass a half-second frame to the encoder. + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.5)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Read out encoded data, and verify. + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(EncodedFrame::VP8_I_FRAME, frame->mFrameType) + << "We only have one frame, so it should be a keyframe"; + + const uint64_t halfSecond = PR_USEC_PER_SEC / 2; + EXPECT_EQ(halfSecond, frame->mDuration); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that encoding a couple of identical images gives useful output. +TEST(VP8VideoTrackEncoder, SameFrameEncode) +{ + TestVP8TrackEncoder encoder; + TimeStamp now = TimeStamp::Now(); + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + + // Pass 15 100ms frames to the encoder. + RefPtr<Image> image = generator.GenerateI420Image(); + VideoSegment segment; + for (uint32_t i = 0; i < 15; ++i) { + segment.AppendFrame(do_AddRef(image), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(i * 0.1)); + } + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(1.5)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify total duration being 1.5s. + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + totalDuration += frame->mDuration; + } + const uint64_t oneAndAHalf = (PR_USEC_PER_SEC / 2) * 3; + EXPECT_EQ(oneAndAHalf, totalDuration); +} + +// Test encoding a track that has to skip frames. +TEST(VP8VideoTrackEncoder, SkippedFrames) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass 100 frames of the shortest possible duration where we don't get + // rounding errors between input/output rate. + VideoSegment segment; + for (uint32_t i = 0; i < 100; ++i) { + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(i)); + } + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(100)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify total duration being 100 * 1ms = 100ms. + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + totalDuration += frame->mDuration; + } + const uint64_t hundredMillis = PR_USEC_PER_SEC / 10; + EXPECT_EQ(hundredMillis, totalDuration); +} + +// Test encoding a track with frames subject to rounding errors. +TEST(VP8VideoTrackEncoder, RoundingErrorFramesEncode) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass nine frames with timestamps not expressable in 90kHz sample rate, + // then one frame to make the total duration close to one second. + VideoSegment segment; + uint32_t usPerFrame = 99999; // 99.999ms + for (uint32_t i = 0; i < 9; ++i) { + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMicroseconds(i * usPerFrame)); + } + + // This last frame has timestamp start + 0.9s and duration 0.1s. + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.9)); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(1)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify total duration being 1s. + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + totalDuration += frame->mDuration; + } + // Not exact, the stream is encoded in time base 90kHz. + const uint64_t oneSecond = PR_USEC_PER_SEC - 1; + EXPECT_EQ(oneSecond, totalDuration); +} + +// Test that we're encoding timestamps rather than durations. +TEST(VP8VideoTrackEncoder, TimestampFrameEncode) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.05)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.2)); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.3)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify total duration being 0.3s and individual frames being [0.05s, 0.15s, + // 0.1s] + uint64_t expectedDurations[] = {(PR_USEC_PER_SEC / 10) / 2, + (PR_USEC_PER_SEC / 10) * 3 / 2, + (PR_USEC_PER_SEC / 10)}; + uint64_t totalDuration = 0; + size_t i = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + EXPECT_EQ(expectedDurations[i], frame->mDuration); + i++; + totalDuration += frame->mDuration; + } + const uint64_t pointThree = (PR_USEC_PER_SEC / 10) * 3; + EXPECT_EQ(pointThree, totalDuration); +} + +// Test that we're compensating for drift when encoding. +TEST(VP8VideoTrackEncoder, DriftingFrameEncode) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Set up major drift -- audio that goes twice as fast as video. + // This should make the given video durations double as they get encoded. + EXPECT_CALL(*encoder.DriftCompensator(), GetVideoTime(_, _)) + .WillRepeatedly(Invoke( + [&](TimeStamp, TimeStamp aTime) { return now + (aTime - now) * 2; })); + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.05)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.2)); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.3)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify total duration being 0.6s and individual frames being [0.1s, 0.3s, + // 0.2s] + uint64_t expectedDurations[] = {(PR_USEC_PER_SEC / 10), + (PR_USEC_PER_SEC / 10) * 3, + (PR_USEC_PER_SEC / 10) * 2}; + uint64_t totalDuration = 0; + size_t i = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + EXPECT_EQ(expectedDurations[i], frame->mDuration); + i++; + totalDuration += frame->mDuration; + } + const uint64_t pointSix = (PR_USEC_PER_SEC / 10) * 6; + EXPECT_EQ(pointSix, totalDuration); +} + +// Test that suspending an encoding works. +TEST(VP8VideoTrackEncoder, Suspended) +{ + TestVP8TrackEncoder encoder; + TimeStamp now = TimeStamp::Now(); + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + + // Pass 3 frames with duration 0.1s. We suspend before and resume after the + // second frame. + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.1)); + } + + encoder.Suspend(now + TimeDuration::FromSeconds(0.1)); + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.1)); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.2)); + } + + encoder.Resume(now + TimeDuration::FromSeconds(0.2)); + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.2)); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.3)); + } + + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify that we have two encoded frames and a total duration of 0.2s. + uint64_t count = 0; + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + ++count; + totalDuration += frame->mDuration; + } + const uint64_t two = 2; + EXPECT_EQ(two, count); + const uint64_t pointTwo = (PR_USEC_PER_SEC / 10) * 2; + EXPECT_EQ(pointTwo, totalDuration); +} + +// Test that ending a track while the video track encoder is suspended works. +TEST(VP8VideoTrackEncoder, SuspendedUntilEnd) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass 2 frames with duration 0.1s. We suspend before the second frame. + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.1)); + } + + encoder.Suspend(now + TimeDuration::FromSeconds(0.1)); + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.1)); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.2)); + } + + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify that we have one encoded frames and a total duration of 0.1s. + uint64_t count = 0; + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + ++count; + totalDuration += frame->mDuration; + } + const uint64_t one = 1; + EXPECT_EQ(one, count); + const uint64_t pointOne = PR_USEC_PER_SEC / 10; + EXPECT_EQ(pointOne, totalDuration); +} + +// Test that ending a track that was always suspended works. +TEST(VP8VideoTrackEncoder, AlwaysSuspended) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Suspend and then pass a frame with duration 2s. + + encoder.Suspend(now); + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(2)); + + encoder.NotifyEndOfStream(); + + // Verify that we have no encoded frames. + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that encoding a track that is suspended in the beginning works. +TEST(VP8VideoTrackEncoder, SuspendedBeginning) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Suspend and pass a frame with duration 0.5s. Then resume and pass one more. + encoder.Suspend(now); + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.5)); + } + + encoder.Resume(now + TimeDuration::FromSeconds(0.5)); + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(0.5)); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(1)); + } + + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify that we have one encoded frames and a total duration of 0.1s. + uint64_t count = 0; + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + ++count; + totalDuration += frame->mDuration; + } + const uint64_t one = 1; + EXPECT_EQ(one, count); + const uint64_t half = PR_USEC_PER_SEC / 2; + EXPECT_EQ(half, totalDuration); +} + +// Test that suspending and resuming in the middle of already pushed data +// works. +TEST(VP8VideoTrackEncoder, SuspendedOverlap) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + { + // Pass a 1s frame and suspend after 0.5s. + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + } + + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.5)); + encoder.Suspend(now + TimeDuration::FromSeconds(0.5)); + + { + // Pass another 1s frame and resume after 0.3 of this new frame. + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromSeconds(1)); + encoder.AppendVideoSegment(std::move(segment)); + } + + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(1.3)); + encoder.Resume(now + TimeDuration::FromSeconds(1.3)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(2)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Verify that we have two encoded frames and a total duration of 0.1s. + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + const uint64_t pointFive = (PR_USEC_PER_SEC / 10) * 5; + EXPECT_EQ(pointFive, frame->mDuration); + frame = encoder.mEncodedVideoQueue.PopFront(); + const uint64_t pointSeven = (PR_USEC_PER_SEC / 10) * 7; + EXPECT_EQ(pointSeven, frame->mDuration); + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that ending a track in the middle of already pushed data works. +TEST(VP8VideoTrackEncoder, PrematureEnding) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass a 1s frame and end the track after 0.5s. + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(0.5)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + totalDuration += frame->mDuration; + } + const uint64_t half = PR_USEC_PER_SEC / 2; + EXPECT_EQ(half, totalDuration); +} + +// Test that a track that starts at t > 0 works as expected. +TEST(VP8VideoTrackEncoder, DelayedStart) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass a 2s frame, start (pass first CurrentTime) at 0.5s, end at 1s. + // Should result in a 0.5s encoding. + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now + TimeDuration::FromSeconds(0.5)); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(1)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + totalDuration += frame->mDuration; + } + const uint64_t half = PR_USEC_PER_SEC / 2; + EXPECT_EQ(half, totalDuration); +} + +// Test that a track that starts at t > 0 works as expected, when +// SetStartOffset comes after AppendVideoSegment. +TEST(VP8VideoTrackEncoder, DelayedStartOtherEventOrder) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass a 2s frame, start (pass first CurrentTime) at 0.5s, end at 1s. + // Should result in a 0.5s encoding. + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.AppendVideoSegment(std::move(segment)); + encoder.SetStartOffset(now + TimeDuration::FromSeconds(0.5)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(1)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + totalDuration += frame->mDuration; + } + const uint64_t half = PR_USEC_PER_SEC / 2; + EXPECT_EQ(half, totalDuration); +} + +// Test that a track that starts at t >>> 0 works as expected. +TEST(VP8VideoTrackEncoder, VeryDelayedStart) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass a 1s frame, start (pass first CurrentTime) at 10s, end at 10.5s. + // Should result in a 0.5s encoding. + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now + TimeDuration::FromSeconds(10)); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(10.5)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + totalDuration += frame->mDuration; + } + const uint64_t half = PR_USEC_PER_SEC / 2; + EXPECT_EQ(half, totalDuration); +} + +// Test that a video frame that hangs around for a long time gets encoded +// every second. +TEST(VP8VideoTrackEncoder, LongFramesReEncoded) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass a frame at t=0 and start encoding. + // Advancing the current time by 6.5s should encode six 1s frames. + // Advancing the current time by another 5.5s should encode another five 1s + // frames. + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + + { + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(6.5)); + + EXPECT_FALSE(encoder.IsEncodingComplete()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.IsFinished()); + + uint64_t count = 0; + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + ++count; + totalDuration += frame->mDuration; + } + const uint64_t sixSec = 6 * PR_USEC_PER_SEC; + EXPECT_EQ(sixSec, totalDuration); + EXPECT_EQ(6U, count); + } + + { + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(11)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + + uint64_t count = 0; + uint64_t totalDuration = 0; + while (RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront()) { + ++count; + totalDuration += frame->mDuration; + } + const uint64_t fiveSec = 5 * PR_USEC_PER_SEC; + EXPECT_EQ(fiveSec, totalDuration); + EXPECT_EQ(5U, count); + } +} + +// Test that an encoding with no defined key frame interval encodes keyframes +// as expected. Default interval should be 10s. +TEST(VP8VideoTrackEncoder, DefaultKeyFrameInterval) +{ + // Set the factor high to only test the keyframe-forcing logic + TestVP8TrackEncoder encoder(Some(2.0)); + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass a frame at t=0, and the frame-duplication logic will encode frames + // every second. Keyframes are expected at t=0, 10s and 20s. + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromSeconds(21.5)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // Duplication logic ensures no frame duration is longer than 1 second. + + // [0, 1000ms) - key-frame. + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 1000UL, frame->mDuration); + EXPECT_EQ(EncodedFrame::VP8_I_FRAME, frame->mFrameType); + + // [1000ms, 10000ms) - non-key-frames + for (int i = 0; i < 9; ++i) { + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 1000UL, frame->mDuration) + << "Start time: " << frame->mTime.ToMicroseconds() << "us"; + EXPECT_EQ(EncodedFrame::VP8_P_FRAME, frame->mFrameType) + << "Start time: " << frame->mTime.ToMicroseconds() << "us"; + } + + // [10000ms, 11000ms) - key-frame + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 1000UL, frame->mDuration); + EXPECT_EQ(EncodedFrame::VP8_I_FRAME, frame->mFrameType); + + // [11000ms, 20000ms) - non-key-frames + for (int i = 0; i < 9; ++i) { + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 1000UL, frame->mDuration) + << "Start time: " << frame->mTime.ToMicroseconds() << "us"; + EXPECT_EQ(EncodedFrame::VP8_P_FRAME, frame->mFrameType) + << "Start time: " << frame->mTime.ToMicroseconds() << "us"; + } + + // [20000ms, 21000ms) - key-frame + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 1000UL, frame->mDuration); + EXPECT_EQ(EncodedFrame::VP8_I_FRAME, frame->mFrameType); + + // [21000ms, 21500ms) - non-key-frame + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 500UL, frame->mDuration); + EXPECT_EQ(EncodedFrame::VP8_P_FRAME, frame->mFrameType); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that an encoding which is disabled on a frame timestamp encodes +// frames as expected. +TEST(VP8VideoTrackEncoder, DisableOnFrameTime) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass a frame in at t=0. + // Pass another frame in at t=100ms. + // Disable the track at t=100ms. + // Stop encoding at t=200ms. + // Should yield 2 frames, 1 real; 1 black. + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(100)); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + + // Advancing 100ms, for simplicity. + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(100)); + + encoder.Disable(now + TimeDuration::FromMilliseconds(100)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(200)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // [0, 100ms) + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + // [100ms, 200ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that an encoding which is disabled between two frame timestamps +// encodes frames as expected. +TEST(VP8VideoTrackEncoder, DisableBetweenFrames) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Pass a frame in at t=0. + // Disable the track at t=50ms. + // Pass another frame in at t=100ms. + // Stop encoding at t=200ms. + // Should yield 3 frames, 1 real [0, 50); 2 black [50, 100) and [100, 200). + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(100)); + + encoder.SetStartOffset(now); + encoder.AppendVideoSegment(std::move(segment)); + + encoder.Disable(now + TimeDuration::FromMilliseconds(50)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(200)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // [0, 50ms) + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 50UL, frame->mDuration); + + // [50ms, 100ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 50UL, frame->mDuration); + + // [100ms, 200ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that an encoding which is disabled before the first frame becomes +// black immediately. +TEST(VP8VideoTrackEncoder, DisableBeforeFirstFrame) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Disable the track at t=0. + // Pass a frame in at t=50ms. + // Enable the track at t=100ms. + // Stop encoding at t=200ms. + // Should yield 2 frames, 1 black [0, 100); 1 real [100, 200). + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(50)); + + encoder.SetStartOffset(now); + encoder.Disable(now); + encoder.AppendVideoSegment(std::move(segment)); + + encoder.Enable(now + TimeDuration::FromMilliseconds(100)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(200)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // [0, 100ms) + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + // [100ms, 200ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that an encoding which is enabled on a frame timestamp encodes +// frames as expected. +TEST(VP8VideoTrackEncoder, EnableOnFrameTime) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Disable the track at t=0. + // Pass a frame in at t=0. + // Pass another frame in at t=100ms. + // Enable the track at t=100ms. + // Stop encoding at t=200ms. + // Should yield 2 frames, 1 black; 1 real. + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(100)); + + encoder.SetStartOffset(now); + encoder.Disable(now); + encoder.AppendVideoSegment(std::move(segment)); + + // Advancing 100ms, for simplicity. + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(100)); + + encoder.Enable(now + TimeDuration::FromMilliseconds(100)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(200)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // [0, 100ms) + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + // [100ms, 200ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that an encoding which is enabled between two frame timestamps encodes +// frames as expected. +TEST(VP8VideoTrackEncoder, EnableBetweenFrames) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + // Disable the track at t=0. + // Pass a frame in at t=0. + // Enable the track at t=50ms. + // Pass another frame in at t=100ms. + // Stop encoding at t=200ms. + // Should yield 3 frames, 1 black [0, 50); 2 real [50, 100) and [100, 200). + + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(100)); + + encoder.SetStartOffset(now); + encoder.Disable(now); + encoder.AppendVideoSegment(std::move(segment)); + + encoder.Enable(now + TimeDuration::FromMilliseconds(50)); + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(200)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // [0, 50ms) + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 50UL, frame->mDuration); + + // [50ms, 100ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 50UL, frame->mDuration); + + // [100ms, 200ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that making time go backwards removes any future frames in the +// encoder. +TEST(VP8VideoTrackEncoder, BackwardsTimeResets) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + encoder.SetStartOffset(now); + + // Pass frames in at t=0, t=100ms, t=200ms, t=300ms. + // Advance time to t=125ms. + // Pass frames in at t=150ms, t=250ms, t=350ms. + // Stop encoding at t=300ms. + // Should yield 4 frames, at t=0, t=100ms, t=150ms, t=250ms. + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(100)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(200)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(300)); + + encoder.AppendVideoSegment(std::move(segment)); + } + + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(125)); + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(150)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(250)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(350)); + + encoder.AppendVideoSegment(std::move(segment)); + } + + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(300)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // [0, 100ms) + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + // [100ms, 150ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 50UL, frame->mDuration); + + // [150ms, 250ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + // [250ms, 300ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 50UL, frame->mDuration); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// Test that trying to encode a null image removes any future frames in the +// encoder. +TEST(VP8VideoTrackEncoder, NullImageResets) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(640, 480)); + TimeStamp now = TimeStamp::Now(); + + encoder.SetStartOffset(now); + + // Pass frames in at t=0, t=100ms, t=200ms, t=300ms. + // Advance time to t=125ms. + // Pass in a null image at t=125ms. + // Pass frames in at t=250ms, t=350ms. + // Stop encoding at t=300ms. + // Should yield 3 frames, at t=0, t=100ms, t=250ms. + + { + VideoSegment segment; + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, now); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(100)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(200)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(300)); + + encoder.AppendVideoSegment(std::move(segment)); + } + + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(125)); + + { + VideoSegment segment; + segment.AppendFrame(nullptr, generator.GetSize(), PRINCIPAL_HANDLE_NONE, + false, now + TimeDuration::FromMilliseconds(125)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(250)); + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + TimeDuration::FromMilliseconds(350)); + + encoder.AppendVideoSegment(std::move(segment)); + } + + encoder.AdvanceCurrentTime(now + TimeDuration::FromMilliseconds(300)); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // [0, 100ms) + RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration); + + // [100ms, 250ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 150UL, frame->mDuration); + + // [250ms, 300ms) + frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 50UL, frame->mDuration); + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +TEST(VP8VideoTrackEncoder, MaxKeyFrameDistanceLowFramerate) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(240, 180)); + TimeStamp now = TimeStamp::Now(); + + encoder.SetStartOffset(now); + + // Pass 10s worth of frames at 2 fps and verify that the key frame interval + // is ~7.5s. + const TimeDuration duration = TimeDuration::FromSeconds(10); + const uint32_t numFrames = 10 * 2; + const TimeDuration frameDuration = duration / static_cast<int64_t>(numFrames); + + { + VideoSegment segment; + for (uint32_t i = 0; i < numFrames; ++i) { + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + frameDuration * i); + } + encoder.AppendVideoSegment(std::move(segment)); + } + + encoder.AdvanceCurrentTime(now + duration); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + for (uint32_t i = 0; i < numFrames; ++i) { + const RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 500UL, frame->mDuration) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + // 7.5s key frame interval at 2 fps becomes the 15th frame. + EXPECT_EQ( + i % 15 == 0 ? EncodedFrame::VP8_I_FRAME : EncodedFrame::VP8_P_FRAME, + frame->mFrameType) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + } + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// This is "High" framerate, as in higher than the test for "Low" framerate. +// We don't make it too high because the test takes considerably longer to +// run. +TEST(VP8VideoTrackEncoder, MaxKeyFrameDistanceHighFramerate) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(240, 180)); + TimeStamp now = TimeStamp::Now(); + + encoder.SetStartOffset(now); + + // Pass 10s worth of frames at 8 fps and verify that the key frame interval + // is ~7.5s. + const TimeDuration duration = TimeDuration::FromSeconds(10); + const uint32_t numFrames = 10 * 8; + const TimeDuration frameDuration = duration / static_cast<int64_t>(numFrames); + + { + VideoSegment segment; + for (uint32_t i = 0; i < numFrames; ++i) { + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + frameDuration * i); + } + encoder.AppendVideoSegment(std::move(segment)); + } + + encoder.AdvanceCurrentTime(now + duration); + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + for (uint32_t i = 0; i < numFrames; ++i) { + const RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 125UL, frame->mDuration) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + // 7.5s key frame interval at 8 fps becomes the 60th frame. + EXPECT_EQ( + i % 60 == 0 ? EncodedFrame::VP8_I_FRAME : EncodedFrame::VP8_P_FRAME, + frame->mFrameType) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + } + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +TEST(VP8VideoTrackEncoder, MaxKeyFrameDistanceAdaptiveFramerate) +{ + TestVP8TrackEncoder encoder; + YUVBufferGenerator generator; + generator.Init(mozilla::gfx::IntSize(240, 180)); + TimeStamp now = TimeStamp::Now(); + + encoder.SetStartOffset(now); + + // Pass 11s worth of frames at 2 fps and verify that there is a key frame + // at 7.5s. Then pass 14s worth of frames at 10 fps and verify that there is + // a key frame at 15s (due to re-init) and then one at 22.5s. + + const TimeDuration firstDuration = TimeDuration::FromSeconds(11); + const uint32_t firstNumFrames = 11 * 2; + const TimeDuration firstFrameDuration = + firstDuration / static_cast<int64_t>(firstNumFrames); + { + VideoSegment segment; + for (uint32_t i = 0; i < firstNumFrames; ++i) { + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + firstFrameDuration * i); + } + encoder.AppendVideoSegment(std::move(segment)); + } + encoder.AdvanceCurrentTime(now + firstDuration); + + const TimeDuration secondDuration = TimeDuration::FromSeconds(14); + const uint32_t secondNumFrames = 14 * 10; + const TimeDuration secondFrameDuration = + secondDuration / static_cast<int64_t>(secondNumFrames); + { + VideoSegment segment; + for (uint32_t i = 0; i < secondNumFrames; ++i) { + segment.AppendFrame(generator.GenerateI420Image(), generator.GetSize(), + PRINCIPAL_HANDLE_NONE, false, + now + firstDuration + secondFrameDuration * i); + } + encoder.AppendVideoSegment(std::move(segment)); + } + encoder.AdvanceCurrentTime(now + firstDuration + secondDuration); + + encoder.NotifyEndOfStream(); + + EXPECT_TRUE(encoder.IsEncodingComplete()); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); + EXPECT_FALSE(encoder.mEncodedVideoQueue.AtEndOfStream()); + + // [0, 11s) - keyframe distance is now 7.5s@2fps = 15. + for (uint32_t i = 0; i < 22; ++i) { + const RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 500UL, frame->mDuration) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + // 7.5s key frame interval at 2 fps becomes the 15th frame. + EXPECT_EQ( + i % 15 == 0 ? EncodedFrame::VP8_I_FRAME : EncodedFrame::VP8_P_FRAME, + frame->mFrameType) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + } + + // Input framerate is now 10fps. + // Framerate re-evaluation every 5s, so the keyframe distance changed at + // 15s. + for (uint32_t i = 22; i < 162; ++i) { + const RefPtr<EncodedFrame> frame = encoder.mEncodedVideoQueue.PopFront(); + EXPECT_EQ(PR_USEC_PER_SEC / 1000 * 100UL, frame->mDuration) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + if (i < 22 + 40) { + // [11s, 15s) - 40 frames at 10fps but with the 2fps keyframe distance. + EXPECT_EQ( + i % 15 == 0 ? EncodedFrame::VP8_I_FRAME : EncodedFrame::VP8_P_FRAME, + frame->mFrameType) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + } else { + // [15s, 25s) - 100 frames at 10fps. Keyframe distance 75. Starts with + // keyframe due to re-init. + EXPECT_EQ((i - 22 - 40) % 75 == 0 ? EncodedFrame::VP8_I_FRAME + : EncodedFrame::VP8_P_FRAME, + frame->mFrameType) + << "Frame " << i << ", with start: " << frame->mTime.ToMicroseconds() + << "us"; + } + } + + EXPECT_TRUE(encoder.mEncodedVideoQueue.AtEndOfStream()); +} + +// EOS test +TEST(VP8VideoTrackEncoder, EncodeComplete) +{ + TestVP8TrackEncoder encoder; + + // NotifyEndOfStream should wrap up the encoding immediately. + encoder.NotifyEndOfStream(); + EXPECT_TRUE(encoder.mEncodedVideoQueue.IsFinished()); +} |