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Diffstat (limited to 'src/decoder_test.cc')
| -rw-r--r-- | src/decoder_test.cc | 352 |
1 files changed, 352 insertions, 0 deletions
diff --git a/src/decoder_test.cc b/src/decoder_test.cc new file mode 100644 index 0000000..de7d490 --- /dev/null +++ b/src/decoder_test.cc @@ -0,0 +1,352 @@ +// Copyright 2021 The libgav1 Authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include "src/gav1/decoder.h" + +#include <cstddef> +#include <cstdint> +#include <memory> +#include <new> + +#include "gtest/gtest.h" + +namespace libgav1 { +namespace { + +// These two frames come from the libaom test vector av1-1-b8-01-size-32x32.ivf +constexpr uint8_t kFrame1[] = { + 0x12, 0x0, 0xa, 0xa, 0x0, 0x0, 0x0, 0x2, 0x27, 0xfe, 0xff, 0xfc, + 0xc0, 0x20, 0x32, 0x93, 0x2, 0x10, 0x0, 0xa8, 0x80, 0x0, 0x3, 0x0, + 0x10, 0x10, 0x30, 0x0, 0xd3, 0xc6, 0xc6, 0x82, 0xaa, 0x5e, 0xbf, 0x82, + 0xf2, 0xa4, 0xa4, 0x29, 0xab, 0xda, 0xd7, 0x1, 0x5, 0x0, 0xb3, 0xde, + 0xa8, 0x6f, 0x8d, 0xbf, 0x1b, 0xa8, 0x25, 0xc3, 0x84, 0x7c, 0x1a, 0x2b, + 0x8b, 0x0, 0xff, 0x19, 0x1f, 0x45, 0x7e, 0xe0, 0xbe, 0xe1, 0x3a, 0x63, + 0xc2, 0xc6, 0x6e, 0xf4, 0xc8, 0xce, 0x11, 0xe1, 0x9f, 0x48, 0x64, 0x72, + 0xeb, 0xbb, 0x4f, 0xf3, 0x94, 0xb4, 0xb6, 0x9d, 0x4f, 0x4, 0x18, 0x5e, + 0x5e, 0x1b, 0x65, 0x49, 0x74, 0x90, 0x13, 0x50, 0xef, 0x8c, 0xb8, 0xe8, + 0xd9, 0x8e, 0x9c, 0xc9, 0x4d, 0xda, 0x60, 0x6a, 0xa, 0xf9, 0x75, 0xd0, + 0x62, 0x69, 0xd, 0xf5, 0xdc, 0xa9, 0xb9, 0x4c, 0x8, 0x9e, 0x33, 0x15, + 0xa3, 0xe1, 0x42, 0x0, 0xe2, 0xb0, 0x46, 0xd0, 0xf7, 0xad, 0x55, 0xbc, + 0x75, 0xe9, 0xe3, 0x1f, 0xa3, 0x41, 0x11, 0xba, 0xaa, 0x81, 0xf3, 0xcb, + 0x82, 0x87, 0x71, 0x0, 0xe6, 0xb9, 0x8c, 0xe1, 0xe9, 0xd3, 0x21, 0xcc, + 0xcd, 0xe7, 0x12, 0xb9, 0xe, 0x43, 0x6a, 0xa3, 0x76, 0x5c, 0x35, 0x90, + 0x45, 0x36, 0x52, 0xb4, 0x2d, 0xa3, 0x55, 0xde, 0x20, 0xf8, 0x80, 0xe1, + 0x26, 0x46, 0x1b, 0x3f, 0x59, 0xc7, 0x2e, 0x5b, 0x4a, 0x73, 0xf8, 0xb3, + 0xf4, 0x62, 0xf4, 0xf5, 0xa4, 0xc2, 0xae, 0x9e, 0xa6, 0x9c, 0x10, 0xbb, + 0xe1, 0xd6, 0x88, 0x75, 0xb9, 0x85, 0x48, 0xe5, 0x7, 0x12, 0xf3, 0x11, + 0x85, 0x8e, 0xa2, 0x95, 0x9d, 0xed, 0x50, 0xfb, 0x6, 0x5a, 0x1, 0x37, + 0xc4, 0x8e, 0x9e, 0x73, 0x9b, 0x96, 0x64, 0xbd, 0x42, 0xb, 0x80, 0xde, + 0x57, 0x86, 0xcb, 0x7d, 0xab, 0x12, 0xb2, 0xcc, 0xe6, 0xea, 0xb5, 0x89, + 0xeb, 0x91, 0xb3, 0x93, 0xb2, 0x4f, 0x2f, 0x5b, 0xf3, 0x72, 0x12, 0x51, + 0x56, 0x75, 0xb3, 0xdd, 0x49, 0xb6, 0x5b, 0x77, 0xbe, 0xc5, 0xd7, 0xd4, + 0xaf, 0xd6, 0x6b, 0x38}; + +constexpr uint8_t kFrame2[] = { + 0x12, 0x0, 0x32, 0x33, 0x30, 0x3, 0xc3, 0x0, 0xa7, 0x2e, 0x46, + 0xa8, 0x80, 0x0, 0x3, 0x0, 0x10, 0x1, 0x0, 0xa0, 0x0, 0xed, + 0xb1, 0x51, 0x15, 0x58, 0xc7, 0x69, 0x3, 0x26, 0x35, 0xeb, 0x5a, + 0x2d, 0x7a, 0x53, 0x24, 0x26, 0x20, 0xa6, 0x11, 0x7, 0x49, 0x76, + 0xa3, 0xc7, 0x62, 0xf8, 0x3, 0x32, 0xb0, 0x98, 0x17, 0x3d, 0x80}; + +class DecoderTest : public testing::Test { + public: + void SetUp() override; + void IncrementFramesInUse() { ++frames_in_use_; } + void DecrementFramesInUse() { --frames_in_use_; } + void SetBufferPrivateData(void* buffer_private_data) { + buffer_private_data_ = buffer_private_data; + } + void SetReleasedInputBuffer(void* released_input_buffer) { + released_input_buffer_ = released_input_buffer; + } + + protected: + std::unique_ptr<Decoder> decoder_; + int frames_in_use_ = 0; + void* buffer_private_data_ = nullptr; + void* released_input_buffer_ = nullptr; +}; + +struct FrameBufferPrivate { + uint8_t* data[3]; +}; + +extern "C" { + +static Libgav1StatusCode GetFrameBuffer( + void* callback_private_data, int bitdepth, Libgav1ImageFormat image_format, + int width, int height, int left_border, int right_border, int top_border, + int bottom_border, int stride_alignment, Libgav1FrameBuffer* frame_buffer) { + Libgav1FrameBufferInfo info; + Libgav1StatusCode status = Libgav1ComputeFrameBufferInfo( + bitdepth, image_format, width, height, left_border, right_border, + top_border, bottom_border, stride_alignment, &info); + if (status != kLibgav1StatusOk) return status; + + std::unique_ptr<FrameBufferPrivate> buffer_private(new (std::nothrow) + FrameBufferPrivate); + if (buffer_private == nullptr) return kLibgav1StatusOutOfMemory; + + for (int i = 0; i < 3; ++i) { + const size_t size = (i == 0) ? info.y_buffer_size : info.uv_buffer_size; + buffer_private->data[i] = new (std::nothrow) uint8_t[size]; + if (buffer_private->data[i] == nullptr) { + return kLibgav1StatusOutOfMemory; + } + } + + uint8_t* const y_buffer = buffer_private->data[0]; + uint8_t* const u_buffer = + (info.uv_buffer_size != 0) ? buffer_private->data[1] : nullptr; + uint8_t* const v_buffer = + (info.uv_buffer_size != 0) ? buffer_private->data[2] : nullptr; + + status = Libgav1SetFrameBuffer(&info, y_buffer, u_buffer, v_buffer, + buffer_private.release(), frame_buffer); + if (status != kLibgav1StatusOk) return status; + + auto* const decoder_test = static_cast<DecoderTest*>(callback_private_data); + decoder_test->IncrementFramesInUse(); + decoder_test->SetBufferPrivateData(frame_buffer->private_data); + return kLibgav1StatusOk; +} + +static void ReleaseFrameBuffer(void* callback_private_data, + void* buffer_private_data) { + auto* buffer_private = static_cast<FrameBufferPrivate*>(buffer_private_data); + for (auto& data : buffer_private->data) { + delete[] data; + } + delete buffer_private; + auto* const decoder_test = static_cast<DecoderTest*>(callback_private_data); + decoder_test->DecrementFramesInUse(); +} + +static void ReleaseInputBuffer(void* private_data, void* input_buffer) { + auto* const decoder_test = static_cast<DecoderTest*>(private_data); + decoder_test->SetReleasedInputBuffer(input_buffer); +} + +} // extern "C" + +void DecoderTest::SetUp() { + decoder_.reset(new (std::nothrow) Decoder()); + ASSERT_NE(decoder_, nullptr); + DecoderSettings settings = {}; + settings.frame_parallel = false; + settings.get_frame_buffer = GetFrameBuffer; + settings.release_frame_buffer = ReleaseFrameBuffer; + settings.callback_private_data = this; + settings.release_input_buffer = ReleaseInputBuffer; + ASSERT_EQ(decoder_->Init(&settings), kStatusOk); +} + +TEST_F(DecoderTest, APIFlowForNonFrameParallelMode) { + StatusCode status; + const DecoderBuffer* buffer; + + // Enqueue frame1 for decoding. + status = decoder_->EnqueueFrame(kFrame1, sizeof(kFrame1), 0, + const_cast<uint8_t*>(kFrame1)); + ASSERT_EQ(status, kStatusOk); + + // In non-frame-parallel mode, decoding happens only in the DequeueFrame call. + // So there should be no frames in use yet. + EXPECT_EQ(frames_in_use_, 0); + + // Dequeue the output of frame1. + status = decoder_->DequeueFrame(&buffer); + ASSERT_EQ(status, kStatusOk); + ASSERT_NE(buffer, nullptr); + EXPECT_EQ(released_input_buffer_, &kFrame1); + + // libgav1 has decoded frame1 and is holding a reference to it. + EXPECT_EQ(frames_in_use_, 1); + EXPECT_EQ(buffer_private_data_, buffer->buffer_private_data); + + // Enqueue frame2 for decoding. + status = decoder_->EnqueueFrame(kFrame2, sizeof(kFrame2), 0, + const_cast<uint8_t*>(kFrame2)); + ASSERT_EQ(status, kStatusOk); + + EXPECT_EQ(frames_in_use_, 1); + + // Dequeue the output of frame2. + status = decoder_->DequeueFrame(&buffer); + ASSERT_EQ(status, kStatusOk); + ASSERT_NE(buffer, nullptr); + EXPECT_EQ(released_input_buffer_, &kFrame2); + + EXPECT_EQ(frames_in_use_, 2); + EXPECT_EQ(buffer_private_data_, buffer->buffer_private_data); + + // Signal end of stream (method 1). This should ensure that all the references + // are released. + status = decoder_->SignalEOS(); + + // libgav1 should have released all the reference frames now. + EXPECT_EQ(frames_in_use_, 0); + + // Now, the decoder is ready to accept a new coded video sequence. + + // Enqueue frame1 for decoding. + status = decoder_->EnqueueFrame(kFrame1, sizeof(kFrame1), 0, + const_cast<uint8_t*>(kFrame1)); + ASSERT_EQ(status, kStatusOk); + + EXPECT_EQ(frames_in_use_, 0); + + // Dequeue the output of frame1. + status = decoder_->DequeueFrame(&buffer); + ASSERT_EQ(status, kStatusOk); + ASSERT_NE(buffer, nullptr); + EXPECT_EQ(released_input_buffer_, &kFrame1); + + EXPECT_EQ(frames_in_use_, 1); + EXPECT_EQ(buffer_private_data_, buffer->buffer_private_data); + + // Enqueue frame2 for decoding. + status = decoder_->EnqueueFrame(kFrame2, sizeof(kFrame2), 0, + const_cast<uint8_t*>(kFrame2)); + ASSERT_EQ(status, kStatusOk); + + EXPECT_EQ(frames_in_use_, 1); + + // Dequeue the output of frame2. + status = decoder_->DequeueFrame(&buffer); + ASSERT_EQ(status, kStatusOk); + ASSERT_NE(buffer, nullptr); + EXPECT_EQ(released_input_buffer_, &kFrame2); + + EXPECT_EQ(frames_in_use_, 2); + EXPECT_EQ(buffer_private_data_, buffer->buffer_private_data); + + // Signal end of stream (method 2). This should ensure that all the references + // are released. + decoder_ = nullptr; + + // libgav1 should have released all the frames now. + EXPECT_EQ(frames_in_use_, 0); +} + +TEST_F(DecoderTest, NonFrameParallelModeEnqueueMultipleFramesWithoutDequeuing) { + StatusCode status; + const DecoderBuffer* buffer; + + // Enqueue frame1 for decoding. + status = decoder_->EnqueueFrame(kFrame1, sizeof(kFrame1), 0, + const_cast<uint8_t*>(kFrame1)); + ASSERT_EQ(status, kStatusOk); + + // Until the output of frame1 is dequeued, no other frames can be enqueued. + status = decoder_->EnqueueFrame(kFrame2, sizeof(kFrame2), 0, + const_cast<uint8_t*>(kFrame2)); + ASSERT_EQ(status, kStatusTryAgain); + + EXPECT_EQ(frames_in_use_, 0); + + // Dequeue the output of frame1. + status = decoder_->DequeueFrame(&buffer); + ASSERT_EQ(status, kStatusOk); + ASSERT_NE(buffer, nullptr); + EXPECT_EQ(released_input_buffer_, &kFrame1); + + EXPECT_EQ(frames_in_use_, 1); + + // Delete the decoder instance. + decoder_ = nullptr; + + EXPECT_EQ(frames_in_use_, 0); +} + +TEST_F(DecoderTest, NonFrameParallelModeEOSBeforeDequeuingLastFrame) { + StatusCode status; + const DecoderBuffer* buffer; + + // Enqueue frame1 for decoding. + status = decoder_->EnqueueFrame(kFrame1, sizeof(kFrame1), 0, + const_cast<uint8_t*>(kFrame1)); + ASSERT_EQ(status, kStatusOk); + + EXPECT_EQ(frames_in_use_, 0); + + // Dequeue the output of frame1. + status = decoder_->DequeueFrame(&buffer); + ASSERT_EQ(status, kStatusOk); + ASSERT_NE(buffer, nullptr); + EXPECT_EQ(released_input_buffer_, &kFrame1); + + // Enqueue frame2 for decoding. + status = decoder_->EnqueueFrame(kFrame2, sizeof(kFrame2), 0, + const_cast<uint8_t*>(kFrame2)); + ASSERT_EQ(status, kStatusOk); + + EXPECT_EQ(frames_in_use_, 1); + + // Signal end of stream before dequeuing the output of frame2. + status = decoder_->SignalEOS(); + ASSERT_EQ(status, kStatusOk); + + // In this case, the output of the last frame that was enqueued is lost (which + // is intentional since end of stream was signaled without dequeueing it). + EXPECT_EQ(frames_in_use_, 0); +} + +TEST_F(DecoderTest, NonFrameParallelModeInvalidFrameAfterEOS) { + StatusCode status; + const DecoderBuffer* buffer = nullptr; + + // Enqueue frame1 for decoding. + status = decoder_->EnqueueFrame(kFrame1, sizeof(kFrame1), 0, + const_cast<uint8_t*>(kFrame1)); + ASSERT_EQ(status, kStatusOk); + + EXPECT_EQ(frames_in_use_, 0); + + // Dequeue the output of frame1. + status = decoder_->DequeueFrame(&buffer); + ASSERT_EQ(status, kStatusOk); + ASSERT_NE(buffer, nullptr); + EXPECT_EQ(released_input_buffer_, &kFrame1); + + EXPECT_EQ(frames_in_use_, 1); + + // Signal end of stream. + status = decoder_->SignalEOS(); + + // libgav1 should have released all the reference frames now. + EXPECT_EQ(frames_in_use_, 0); + + // Now, the decoder is ready to accept a new coded video sequence. But, we + // try to enqueue a frame that does not have a sequence header (which is not + // allowed). + + // Enqueue frame2 for decoding. + status = decoder_->EnqueueFrame(kFrame2, sizeof(kFrame2), 0, + const_cast<uint8_t*>(kFrame2)); + ASSERT_EQ(status, kStatusOk); + + EXPECT_EQ(frames_in_use_, 0); + + // Dequeue the output of frame2 (this will fail since no sequence header has + // been seen since the last EOS signal). + status = decoder_->DequeueFrame(&buffer); + ASSERT_EQ(status, kStatusBitstreamError); + EXPECT_EQ(released_input_buffer_, &kFrame2); + + EXPECT_EQ(frames_in_use_, 0); +} + +} // namespace +} // namespace libgav1 |