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/*
* Copyright (c) 2019 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 "test/testsupport/ivf_video_frame_generator.h"
#include <memory>
#include <vector>
#include "absl/types/optional.h"
#include "api/test/create_frame_generator.h"
#include "api/units/time_delta.h"
#include "api/video/encoded_image.h"
#include "api/video/video_codec_type.h"
#include "api/video_codecs/video_codec.h"
#include "api/video_codecs/video_encoder.h"
#include "common_video/libyuv/include/webrtc_libyuv.h"
#include "media/base/codec.h"
#include "media/base/media_constants.h"
#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "modules/video_coding/codecs/vp8/include/vp8.h"
#include "modules/video_coding/codecs/vp9/include/vp9.h"
#include "modules/video_coding/include/video_error_codes.h"
#include "modules/video_coding/utility/ivf_file_writer.h"
#include "rtc_base/event.h"
#include "test/gtest.h"
#include "test/testsupport/file_utils.h"
#include "test/video_codec_settings.h"
#if defined(WEBRTC_USE_H264)
#include "modules/video_coding/codecs/h264/include/h264.h"
#include "rtc_base/synchronization/mutex.h"
#endif
namespace webrtc {
namespace test {
namespace {
constexpr int kWidth = 320;
constexpr int kHeight = 240;
constexpr int kVideoFramesCount = 30;
constexpr int kMaxFramerate = 30;
constexpr TimeDelta kMaxFrameEncodeWaitTimeout = TimeDelta::Seconds(2);
static const VideoEncoder::Capabilities kCapabilities(false);
#if defined(WEBRTC_ANDROID) || defined(WEBRTC_IOS) || defined(WEBRTC_ARCH_ARM64)
constexpr double kExpectedMinPsnr = 35;
#else
constexpr double kExpectedMinPsnr = 39;
#endif
class IvfFileWriterEncodedCallback : public EncodedImageCallback {
public:
IvfFileWriterEncodedCallback(const std::string& file_name,
VideoCodecType video_codec_type,
int expected_frames_count)
: file_writer_(
IvfFileWriter::Wrap(FileWrapper::OpenWriteOnly(file_name), 0)),
video_codec_type_(video_codec_type),
expected_frames_count_(expected_frames_count) {
EXPECT_TRUE(file_writer_.get());
}
~IvfFileWriterEncodedCallback() { EXPECT_TRUE(file_writer_->Close()); }
Result OnEncodedImage(const EncodedImage& encoded_image,
const CodecSpecificInfo* codec_specific_info) override {
EXPECT_TRUE(file_writer_->WriteFrame(encoded_image, video_codec_type_));
MutexLock lock(&lock_);
received_frames_count_++;
RTC_CHECK_LE(received_frames_count_, expected_frames_count_);
if (received_frames_count_ == expected_frames_count_) {
expected_frames_count_received_.Set();
}
return Result(Result::Error::OK);
}
bool WaitForExpectedFramesReceived(TimeDelta timeout) {
return expected_frames_count_received_.Wait(timeout);
}
private:
std::unique_ptr<IvfFileWriter> file_writer_;
const VideoCodecType video_codec_type_;
const int expected_frames_count_;
Mutex lock_;
int received_frames_count_ RTC_GUARDED_BY(lock_) = 0;
rtc::Event expected_frames_count_received_;
};
class IvfVideoFrameGeneratorTest : public ::testing::Test {
protected:
void SetUp() override {
file_name_ =
webrtc::test::TempFilename(webrtc::test::OutputPath(), "test_file.ivf");
}
void TearDown() override { webrtc::test::RemoveFile(file_name_); }
VideoFrame BuildFrame(FrameGeneratorInterface::VideoFrameData frame_data) {
return VideoFrame::Builder()
.set_video_frame_buffer(frame_data.buffer)
.set_update_rect(frame_data.update_rect)
.build();
}
void CreateTestVideoFile(VideoCodecType video_codec_type,
std::unique_ptr<VideoEncoder> video_encoder) {
std::unique_ptr<test::FrameGeneratorInterface> frame_generator =
test::CreateSquareFrameGenerator(
kWidth, kHeight, test::FrameGeneratorInterface::OutputType::kI420,
absl::nullopt);
VideoCodec codec_settings;
webrtc::test::CodecSettings(video_codec_type, &codec_settings);
codec_settings.width = kWidth;
codec_settings.height = kHeight;
codec_settings.maxFramerate = kMaxFramerate;
const uint32_t kBitrateBps = 500000;
VideoBitrateAllocation bitrate_allocation;
bitrate_allocation.SetBitrate(0, 0, kBitrateBps);
IvfFileWriterEncodedCallback ivf_writer_callback(
file_name_, video_codec_type, kVideoFramesCount);
video_encoder->RegisterEncodeCompleteCallback(&ivf_writer_callback);
video_encoder->SetRates(VideoEncoder::RateControlParameters(
bitrate_allocation, static_cast<double>(codec_settings.maxFramerate)));
ASSERT_EQ(WEBRTC_VIDEO_CODEC_OK,
video_encoder->InitEncode(
&codec_settings,
VideoEncoder::Settings(kCapabilities, /*number_of_cores=*/1,
/*max_payload_size=*/0)));
uint32_t last_frame_timestamp = 0;
for (int i = 0; i < kVideoFramesCount; ++i) {
VideoFrame frame = BuildFrame(frame_generator->NextFrame());
const uint32_t timestamp =
last_frame_timestamp +
kVideoPayloadTypeFrequency / codec_settings.maxFramerate;
frame.set_timestamp(timestamp);
last_frame_timestamp = timestamp;
ASSERT_EQ(WEBRTC_VIDEO_CODEC_OK, video_encoder->Encode(frame, nullptr));
video_frames_.push_back(frame);
}
ASSERT_TRUE(ivf_writer_callback.WaitForExpectedFramesReceived(
kMaxFrameEncodeWaitTimeout));
}
std::string file_name_;
std::vector<VideoFrame> video_frames_;
};
} // namespace
TEST_F(IvfVideoFrameGeneratorTest, Vp8) {
CreateTestVideoFile(VideoCodecType::kVideoCodecVP8, VP8Encoder::Create());
IvfVideoFrameGenerator generator(file_name_);
for (size_t i = 0; i < video_frames_.size(); ++i) {
auto& expected_frame = video_frames_[i];
VideoFrame actual_frame = BuildFrame(generator.NextFrame());
EXPECT_GT(I420PSNR(&expected_frame, &actual_frame), kExpectedMinPsnr);
}
}
TEST_F(IvfVideoFrameGeneratorTest, Vp8DoubleRead) {
CreateTestVideoFile(VideoCodecType::kVideoCodecVP8, VP8Encoder::Create());
IvfVideoFrameGenerator generator(file_name_);
for (size_t i = 0; i < video_frames_.size() * 2; ++i) {
auto& expected_frame = video_frames_[i % video_frames_.size()];
VideoFrame actual_frame = BuildFrame(generator.NextFrame());
EXPECT_GT(I420PSNR(&expected_frame, &actual_frame), kExpectedMinPsnr);
}
}
TEST_F(IvfVideoFrameGeneratorTest, Vp9) {
CreateTestVideoFile(VideoCodecType::kVideoCodecVP9, VP9Encoder::Create());
IvfVideoFrameGenerator generator(file_name_);
for (size_t i = 0; i < video_frames_.size(); ++i) {
auto& expected_frame = video_frames_[i];
VideoFrame actual_frame = BuildFrame(generator.NextFrame());
EXPECT_GT(I420PSNR(&expected_frame, &actual_frame), kExpectedMinPsnr);
}
}
#if defined(WEBRTC_USE_H264)
TEST_F(IvfVideoFrameGeneratorTest, H264) {
CreateTestVideoFile(
VideoCodecType::kVideoCodecH264,
H264Encoder::Create(cricket::VideoCodec(cricket::kH264CodecName)));
IvfVideoFrameGenerator generator(file_name_);
for (size_t i = 0; i < video_frames_.size(); ++i) {
auto& expected_frame = video_frames_[i];
VideoFrame actual_frame = BuildFrame(generator.NextFrame());
EXPECT_GT(I420PSNR(&expected_frame, &actual_frame), kExpectedMinPsnr);
}
}
#endif
} // namespace test
} // namespace webrtc
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