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video_encode_accelerator_unittest.cc
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video_encode_accelerator_unittest.cc
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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <inttypes.h>
#include <stddef.h>
#include <stdint.h>
#include <algorithm>
#include <memory>
#include <string>
#include <utility>
#include "base/at_exit.h"
#include "base/bind.h"
#include "base/bits.h"
#include "base/callback_helpers.h"
#include "base/cancelable_callback.h"
#include "base/command_line.h"
#include "base/containers/queue.h"
#include "base/files/file_util.h"
#include "base/macros.h"
#include "base/memory/aligned_memory.h"
#include "base/memory/ref_counted.h"
#include "base/memory/unsafe_shared_memory_region.h"
#include "base/memory/weak_ptr.h"
#include "base/message_loop/message_pump_type.h"
#include "base/numerics/safe_conversions.h"
#include "base/process/process_handle.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/pattern.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/system/sys_info.h"
#include "base/test/launcher/unit_test_launcher.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/task_environment.h"
#include "base/test/test_suite.h"
#include "base/threading/thread.h"
#include "base/threading/thread_checker.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "gpu/config/gpu_driver_bug_workarounds.h"
#include "gpu/config/gpu_preferences.h"
#include "gpu/ipc/service/gpu_memory_buffer_factory.h"
#include "media/base/bind_to_current_loop.h"
#include "media/base/bitstream_buffer.h"
#include "media/base/cdm_context.h"
#include "media/base/color_plane_layout.h"
#include "media/base/decoder_buffer.h"
#include "media/base/media.h"
#include "media/base/media_switches.h"
#include "media/base/media_util.h"
#include "media/base/test_data_util.h"
#include "media/base/video_decoder.h"
#include "media/base/video_frame.h"
#include "media/ffmpeg/ffmpeg_common.h"
#include "media/filters/ffmpeg_video_decoder.h"
#include "media/filters/in_memory_url_protocol.h"
#include "media/filters/ivf_parser.h"
#include "media/filters/vp9_parser.h"
#include "media/filters/vpx_video_decoder.h"
#include "media/gpu/buildflags.h"
#include "media/gpu/gpu_video_encode_accelerator_factory.h"
#include "media/gpu/h264_decoder.h"
#include "media/gpu/h264_dpb.h"
#include "media/gpu/macros.h"
#include "media/gpu/test/video_frame_helpers.h"
#include "media/gpu/test/video_test_helpers.h"
#include "media/mojo/common/mojo_shared_buffer_video_frame.h"
#include "media/parsers/vp8_parser.h"
#include "media/video/fake_video_encode_accelerator.h"
#include "media/video/h264_level_limits.h"
#include "media/video/h264_parser.h"
#include "media/video/video_encode_accelerator.h"
#include "mojo/core/embedder/embedder.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/libyuv/include/libyuv/planar_functions.h"
#include "ui/gfx/geometry/size.h"
#if BUILDFLAG(USE_VAAPI)
#include "media/gpu/vaapi/vaapi_wrapper.h"
#elif defined(OS_WIN)
#include "media/gpu/windows/media_foundation_video_encode_accelerator_win.h"
#endif
#if defined(USE_OZONE)
#include "ui/ozone/public/ozone_gpu_test_helper.h"
#include "ui/ozone/public/ozone_platform.h"
#include "ui/ozone/public/surface_factory_ozone.h"
#endif
namespace media {
namespace {
// The absolute differences between original frame and decoded frame usually
// ranges aroud 1 ~ 7. So we pick 10 as an extreme value to detect abnormal
// decoded frames.
const double kDecodeSimilarityThreshold = 10.0;
// Arbitrarily chosen to add some depth to the pipeline.
const unsigned int kNumOutputBuffers = 4;
const unsigned int kNumExtraInputFrames = 4;
// Maximum delay between requesting a keyframe and receiving one, in frames.
// Arbitrarily chosen as a reasonable requirement.
const unsigned int kMaxKeyframeDelay = 4;
// Default initial bitrate.
const uint32_t kDefaultBitrate = 2000000;
// Default ratio of requested_subsequent_bitrate to initial_bitrate
// (see test parameters below) if one is not provided.
const double kDefaultSubsequentBitrateRatio = 2.0;
// Default initial framerate.
const uint32_t kDefaultFramerate = 30;
// Default ratio of requested_subsequent_framerate to initial_framerate
// (see test parameters below) if one is not provided.
const double kDefaultSubsequentFramerateRatio = 0.1;
// Tolerance factor for how encoded bitrate can differ from requested bitrate.
const double kBitrateTolerance = 0.1;
// Minimum (arbitrary) number of frames required to enforce bitrate requirements
// over. Streams shorter than this may be too short to realistically require
// an encoder to be able to converge to the requested bitrate over.
// The input stream will be looped as many times as needed in bitrate tests
// to reach at least this number of frames before calculating final bitrate.
const unsigned int kMinFramesForBitrateTests = 300;
// The percentiles to measure for encode latency.
const unsigned int kLoggedLatencyPercentiles[] = {50, 75, 95};
// Timeout between each BitstreamBufferReady() call and flush callback.
// In the multiple encoder test case, the FPS might be lower than expected.
// To rule out a flakiness on low-end devices, the timeout is set to 10 sec,
// https://crbug.com/1019307.
const unsigned int kBitstreamBufferReadyTimeoutMs =
10 * base::Time::kMillisecondsPerSecond;
// How much to scale down the input stream by for the scaling test.
constexpr unsigned int kScalingDenominator = 2u;
// The smallest test stream visible size for which the scaling test will run. If
// any of the test streams has a size below this, the scaling test will be
// skipped. This is used to ensure that all boards are able to pass the scaling
// test successfully. For example, if |kScalingDenominator| is 2 and
// |kMinVisibleSizeForScalingTest| is 640x360, it's expected that all boards can
// encode a stream that is 320x180.
constexpr gfx::Size kMinVisibleSizeForScalingTest(640, 360);
// The syntax of multiple test streams is:
// test-stream1;test-stream2;test-stream3
// The syntax of each test stream is:
// "in_filename:width:height:profile:out_filename:requested_bitrate
// :requested_framerate:requested_subsequent_bitrate
// :requested_subsequent_framerate:pixel_format:requested_level"
// Instead of ":", "," can be used as a seperator as well. Note that ":" does
// not work on Windows as it interferes with file paths.
// - |in_filename| is YUV raw stream. Its format must be |pixel_format|
// (see http://www.fourcc.org/yuv.php#IYUV).
// - |width| and |height| are in pixels.
// - |profile| to encode into (values of VideoCodecProfile).
// - |out_filename| filename to save the encoded stream to (optional). The
// format for H264 is Annex-B byte stream. The format for VP8 and VP9 is IVF.
// Output stream is saved for the simple encode test only. H264 raw stream and
// IVF can be used as input of VDA unittest. H264 raw stream can be played by
// "mplayer -fps 25 out.h264" and IVF can be played by mplayer directly.
// Helpful description: http://wiki.multimedia.cx/index.php?title=IVF
// Further parameters are optional (need to provide preceding positional
// parameters if a specific subsequent parameter is required):
// - |requested_bitrate| requested bitrate in bits per second, use
// kDefaultBitrate if not provided.
// Bitrate is only forced for tests that test bitrate.
// - |requested_framerate| requested initial framerate, use kDefaultFramerate
// if not provided.
// - |requested_subsequent_bitrate| bitrate to switch to in the middle of the
// stream.
// - |requested_subsequent_framerate| framerate to switch to in the middle
// of the stream.
// - |pixel_format| is the VideoPixelFormat of |in_filename|. Users needs to
// set the value corresponding to the desired format. If it is not specified,
// this would be PIXEL_FORMAT_I420.
// - |requested_level| requested output level. Currently only for H264 codec and
// the value should be assigned as H264LevelIDC enum in
// h264_parser.h. Use kDefaultH264Level if not provided.
#if defined(OS_CHROMEOS) || defined(OS_LINUX)
const char kDefaultInputFileName[] = "bear_320x192_40frames.yuv.webm";
const base::FilePath::CharType kDefaultInputParameters[] =
FILE_PATH_LITERAL(":320:192:1:out.h264:200000");
#elif defined(OS_MAC)
// VideoToolbox falls back to SW encoder with resolutions lower than this.
const char kDefaultInputFileName[] = "bear_640x384_40frames.yuv.webm";
const base::FilePath::CharType kDefaultInputParameters[] =
FILE_PATH_LITERAL(":640:384:1:out.h264:200000");
#elif defined(OS_WIN)
const char kDefaultInputFileName[] = "bear_320x192_40frames.yuv.webm";
const base::FilePath::CharType kDefaultInputParameters[] =
FILE_PATH_LITERAL(",320,192,0,out.h264,200000");
#endif // defined(OS_CHROMEOS) || defined(OS_LINUX)
// Default params that can be overriden via command line.
std::unique_ptr<base::FilePath::StringType> g_test_stream_data(
new base::FilePath::StringType(
media::GetTestDataFilePath(media::kDefaultInputFileName).value() +
media::kDefaultInputParameters));
base::FilePath g_log_path;
base::FilePath g_frame_stats_path;
bool g_run_at_fps = false;
bool g_needs_encode_latency = false;
bool g_verify_all_output = false;
bool g_fake_encoder = false;
// Enable/Disable ForceLevel test. Since currently not all devices support level
// configuration, test could be disabled by the command line
// "--force_level=false" (or set "true" to enable).
// TODO(johnylin): enable ForceLevel after supporting dynamically query drivers
// level capability. https://crbug.com/878674.
bool g_force_level = false;
// This identifies the storage type of inputting VideoFrame on Encode().
// If |native_input| is true, inputting VideoFrame on Encode() is DmaBuf-backed
// VideoFrame. Otherwise, it is MEM-backed VideoFrame.
bool g_native_input = false;
// Environment to store test stream data for all test cases.
class VideoEncodeAcceleratorTestEnvironment;
VideoEncodeAcceleratorTestEnvironment* g_env;
std::unique_ptr<base::test::ScopedFeatureList> CreateScopedFeatureList() {
#if BUILDFLAG(USE_VAAPI)
auto scoped_feature_list = std::make_unique<base::test::ScopedFeatureList>();
std::vector<base::Feature> enabled_features = {
// TODO(crbug.com/828482): remove once enabled by default.
media::kVaapiLowPowerEncoderGen9x,
// TODO(crbug.com/811912): remove once enabled by default.
media::kVaapiVP9Encoder};
scoped_feature_list->InitWithFeatures(enabled_features, {});
return scoped_feature_list;
#else
return nullptr;
#endif // BUILDFLAG(USE_VAAPI)
}
// The number of frames to be encoded. This variable is set by the switch
// "--num_frames_to_encode". Ignored if 0.
int g_num_frames_to_encode = 0;
struct TestStream {
TestStream()
: num_frames(0),
aligned_buffer_size(0),
requested_bitrate(kDefaultBitrate),
requested_framerate(kDefaultFramerate),
requested_subsequent_bitrate(0),
requested_subsequent_framerate(0) {}
~TestStream() {}
VideoPixelFormat pixel_format;
gfx::Size visible_size;
gfx::Size coded_size;
unsigned int num_frames;
// Original unaligned YUV input file name provided as an argument to the test.
std::string in_filename;
// A vector used to prepare aligned input buffers of |in_filename|. This
// makes sure starting addresses of YUV planes are aligned to
// kPlatformBufferAlignment bytes.
std::vector<char,
test::AlignedAllocator<char, test::kPlatformBufferAlignment>>
aligned_in_file_data;
// Byte size of a frame of |aligned_in_file_data|.
size_t aligned_buffer_size;
// Byte size for each aligned plane of a frame.
std::vector<size_t> aligned_plane_size;
std::string out_filename;
VideoCodecProfile requested_profile;
unsigned int requested_bitrate;
unsigned int requested_framerate;
unsigned int requested_subsequent_bitrate;
unsigned int requested_subsequent_framerate;
base::Optional<uint8_t> requested_level;
};
// Return the |percentile| from a sorted vector.
static base::TimeDelta Percentile(
const std::vector<base::TimeDelta>& sorted_values,
unsigned int percentile) {
size_t size = sorted_values.size();
LOG_ASSERT(size > 0UL);
LOG_ASSERT(percentile <= 100UL);
// Use Nearest Rank method in http://en.wikipedia.org/wiki/Percentile.
int index =
std::max(static_cast<int>(ceil(0.01f * percentile * size)) - 1, 0);
return sorted_values[index];
}
static bool IsH264(VideoCodecProfile profile) {
return profile >= H264PROFILE_MIN && profile <= H264PROFILE_MAX;
}
static bool IsVP8(VideoCodecProfile profile) {
return profile >= VP8PROFILE_MIN && profile <= VP8PROFILE_MAX;
}
static bool IsVP9(VideoCodecProfile profile) {
return profile >= VP9PROFILE_MIN && profile <= VP9PROFILE_MAX;
}
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Determine the test is known-to-fail and should be skipped.
bool ShouldSkipTest(VideoPixelFormat format) {
struct Pattern {
const char* board_pattern;
const char* suite_name_prefix;
VideoPixelFormat format; // Set PIXEL_FORMAT_UNKNOWN for any format.
};
// Warning: The list should be only used as a last resort for known vendor
// issues that will never be fixed.
constexpr Pattern kSkipTestPatterns[] = {
// crbug.com/769722: MTK driver doesn't compute bitrate correctly.
// Disable mid_stream_bitrate_switch test cases for elm/hana.
{"elm", "MidStreamParamSwitchBitrate", PIXEL_FORMAT_UNKNOWN},
{"elm", "MultipleEncoders", PIXEL_FORMAT_UNKNOWN},
{"elm-kernelnext", "MidStreamParamSwitchBitrate", PIXEL_FORMAT_UNKNOWN},
{"elm-kernelnext", "MultipleEncoders", PIXEL_FORMAT_UNKNOWN},
{"hana", "MidStreamParamSwitchBitrate", PIXEL_FORMAT_UNKNOWN},
{"hana", "MultipleEncoders", PIXEL_FORMAT_UNKNOWN},
{"hana-kernelnext", "MidStreamParamSwitchBitrate", PIXEL_FORMAT_UNKNOWN},
{"hana-kernelnext", "MultipleEncoders", PIXEL_FORMAT_UNKNOWN},
// crbug.com/965348#c6: Tegra driver calculates the wrong plane size of
// NV12. Disable all tests on nyan family for NV12 test.
// TODO(akahuang): Remove this after nyan family are EOL.
{"nyan_*", "", PIXEL_FORMAT_NV12},
};
const std::string board = base::SysInfo::GetLsbReleaseBoard();
if (board == "unknown") {
LOG(WARNING) << "Cannot get CrOS board name. Do you run at CrOS device?";
return false;
}
const std::string suite_name = ::testing::UnitTest::GetInstance()
->current_test_info()
->test_suite_name();
for (const auto& pattern : kSkipTestPatterns) {
if (suite_name.find(pattern.suite_name_prefix) == 0 &&
base::MatchPattern(board, pattern.board_pattern) &&
(pattern.format == PIXEL_FORMAT_UNKNOWN || pattern.format == format)) {
return true;
}
}
return false;
}
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
// Helper functions to do string conversions.
static base::FilePath::StringType StringToFilePathStringType(
const std::string& str) {
#if defined(OS_WIN)
return base::UTF8ToWide(str);
#else
return str;
#endif // defined(OS_WIN)
}
static std::string FilePathStringTypeToString(
const base::FilePath::StringType& str) {
#if defined(OS_WIN)
return base::WideToUTF8(str);
#else
return str;
#endif // defined(OS_WIN)
}
// Decodes webm vp9 |src_file| into |test_stream_->aligned_in_file_data|. Used
// to save storage size in media/test/data since raw YUV files are huge.
static bool DecodeFile(const base::FilePath& src_file,
TestStream* test_stream) {
InitializeMediaLibrary();
const int file_size = base::checked_cast<int>([src_file]() {
int64_t tmp = 0;
CHECK(base::GetFileSize(src_file, &tmp))
<< "Failed to get file size for '" << src_file << "'";
return tmp;
}());
// Read file data into memory.
auto buffer = base::MakeRefCounted<DecoderBuffer>(file_size);
auto* data = reinterpret_cast<char*>(buffer->writable_data());
CHECK_EQ(file_size, base::ReadFile(src_file, data, file_size))
<< "Failed to read '" << src_file << "'";
// Initialize ffmpeg with the file data.
InMemoryUrlProtocol protocol(buffer->data(), buffer->data_size(), false);
FFmpegGlue glue(&protocol);
CHECK(glue.OpenContext());
// Find first vp9 stream in the file.
int stream_index = -1;
VideoDecoderConfig config;
for (size_t i = 0; i < glue.format_context()->nb_streams; ++i) {
AVStream* stream = glue.format_context()->streams[i];
const AVCodecParameters* codec_parameters = stream->codecpar;
const AVMediaType codec_type = codec_parameters->codec_type;
const AVCodecID codec_id = codec_parameters->codec_id;
if (codec_type == AVMEDIA_TYPE_VIDEO && codec_id == AV_CODEC_ID_VP9) {
CHECK(AVStreamToVideoDecoderConfig(stream, &config));
stream_index = i;
break;
}
}
CHECK(config.IsValidConfig());
test_stream->num_frames = 0;
test_stream->aligned_in_file_data.clear();
// Writes VideoFrames into the |test_stream_->aligned_in_file_data| structure.
class FrameWriter {
public:
explicit FrameWriter(TestStream* test_stream) : test_stream_(test_stream) {}
~FrameWriter() = default;
void FrameReady(scoped_refptr<VideoFrame> frame) {
const size_t previous_end = test_stream_->aligned_in_file_data.size();
++test_stream_->num_frames;
test_stream_->aligned_in_file_data.resize(
test_stream_->num_frames * test_stream_->aligned_buffer_size);
uint8_t* dest = reinterpret_cast<uint8_t*>(
&test_stream_->aligned_in_file_data[previous_end]);
for (size_t plane = 0;
plane < VideoFrame::NumPlanes(test_stream_->pixel_format); plane++) {
libyuv::CopyPlane(
frame->data(plane), frame->stride(plane), dest,
VideoFrame::RowBytes(plane, test_stream_->pixel_format,
test_stream_->coded_size.width()),
VideoFrame::RowBytes(plane, test_stream_->pixel_format,
test_stream_->visible_size.width()),
VideoFrame::Rows(plane, test_stream_->pixel_format,
test_stream_->visible_size.height()));
dest += test_stream_->aligned_plane_size[plane];
}
}
private:
TestStream* const test_stream_;
DISALLOW_COPY_AND_ASSIGN(FrameWriter);
} frame_writer(test_stream);
// Setup decoder.
VpxVideoDecoder decoder;
decoder.Initialize(config, false, nullptr, base::DoNothing(),
base::BindRepeating(&FrameWriter::FrameReady,
base::Unretained(&frame_writer)),
base::NullCallback());
// Decode frames. No need to flush since VpxVideoDecoder is 1 in 1 out.
AVPacket packet = {};
while (av_read_frame(glue.format_context(), &packet) >= 0) {
if (packet.stream_index == stream_index) {
decoder.Decode(DecoderBuffer::CopyFrom(packet.data, packet.size),
base::DoNothing());
base::RunLoop().RunUntilIdle();
}
av_packet_unref(&packet);
}
return true;
}
// Some platforms may have requirements on physical memory buffer alignment.
// Since we are just mapping and passing chunks of the input file directly to
// the VEA as input frames, to avoid copying large chunks of raw data on each
// frame, and thus affecting performance measurements, we have to prepare a
// temporary file with all planes aligned to the required alignment beforehand.
static void CreateAlignedInputStreamFile(const gfx::Size& coded_size,
TestStream* test_stream) {
// Test case may have many encoders and memory should be prepared once.
if (test_stream->coded_size == coded_size &&
!test_stream->aligned_in_file_data.empty())
return;
// All encoders in multiple encoder test reuse the same test_stream, make
// sure they requested the same coded_size
ASSERT_TRUE(test_stream->aligned_in_file_data.empty() ||
coded_size == test_stream->coded_size);
test_stream->coded_size = coded_size;
ASSERT_NE(test_stream->pixel_format, PIXEL_FORMAT_UNKNOWN);
const VideoPixelFormat pixel_format = test_stream->pixel_format;
size_t num_planes = VideoFrame::NumPlanes(pixel_format);
std::vector<size_t> coded_bpl(num_planes);
std::vector<size_t> visible_bpl(num_planes);
std::vector<size_t> visible_plane_rows(num_planes);
// Calculate padding in bytes to be added after each plane required to keep
// starting addresses of all planes at a byte boundary required by the
// platform. This padding will be added after each plane when copying to the
// temporary file.
// At the same time we also need to take into account coded_size requested by
// the VEA; each row of visible_bpl bytes in the original file needs to be
// copied into a row of coded_bpl bytes in the aligned file.
for (size_t i = 0; i < num_planes; i++) {
coded_bpl[i] = VideoFrame::RowBytes(i, pixel_format, coded_size.width());
visible_bpl[i] = VideoFrame::RowBytes(i, pixel_format,
test_stream->visible_size.width());
visible_plane_rows[i] =
VideoFrame::Rows(i, pixel_format, test_stream->visible_size.height());
size_t coded_area_size =
coded_bpl[i] * VideoFrame::Rows(i, pixel_format, coded_size.height());
const size_t aligned_size =
test::AlignToPlatformRequirements(coded_area_size);
test_stream->aligned_plane_size.push_back(aligned_size);
test_stream->aligned_buffer_size += aligned_size;
}
base::FilePath src_file(StringToFilePathStringType(test_stream->in_filename));
// File is encoded and must be decoded first.
if (src_file.MatchesExtension(FILE_PATH_LITERAL(".webm"))) {
ASSERT_TRUE(DecodeFile(src_file, test_stream));
return;
}
int64_t src_file_size = 0;
LOG_ASSERT(base::GetFileSize(src_file, &src_file_size));
// NOTE: VideoFrame::AllocationSize() cannot used here because the width and
// height on each plane is aligned by 2 for YUV format.
size_t frame_buffer_size = 0;
for (size_t i = 0; i < num_planes; ++i) {
size_t row_bytes = VideoFrame::RowBytes(i, pixel_format,
test_stream->visible_size.width());
size_t rows =
VideoFrame::Rows(i, pixel_format, test_stream->visible_size.height());
frame_buffer_size += rows * row_bytes;
}
LOG_ASSERT(src_file_size % frame_buffer_size == 0U)
<< "Stream byte size is not a product of calculated frame byte size";
test_stream->num_frames =
static_cast<unsigned int>(src_file_size / frame_buffer_size);
LOG_ASSERT(test_stream->aligned_buffer_size > 0UL);
test_stream->aligned_in_file_data.resize(test_stream->aligned_buffer_size *
test_stream->num_frames);
base::File src(src_file, base::File::FLAG_OPEN | base::File::FLAG_READ);
std::vector<char> src_data(frame_buffer_size);
off_t src_offset = 0, dest_offset = 0;
for (size_t frame = 0; frame < test_stream->num_frames; frame++) {
LOG_ASSERT(src.Read(src_offset, &src_data[0],
static_cast<int>(frame_buffer_size)) ==
static_cast<int>(frame_buffer_size));
const char* src_ptr = &src_data[0];
for (size_t i = 0; i < num_planes; i++) {
// Assert that each plane of frame starts at required byte boundary.
ASSERT_TRUE(base::IsAligned(dest_offset, test::kPlatformBufferAlignment))
<< "Planes of frame should be mapped per platform requirements";
char* dst_ptr = &test_stream->aligned_in_file_data[dest_offset];
for (size_t j = 0; j < visible_plane_rows[i]; j++) {
memcpy(dst_ptr, src_ptr, visible_bpl[i]);
src_ptr += visible_bpl[i];
dst_ptr += static_cast<off_t>(coded_bpl[i]);
}
dest_offset += test_stream->aligned_plane_size[i];
}
src_offset += static_cast<off_t>(frame_buffer_size);
}
src.Close();
LOG_ASSERT(test_stream->num_frames > 0UL);
}
// Parse |data| into its constituent parts, set the various output fields
// accordingly, read in video stream, and store them to |test_streams|.
static void ParseAndReadTestStreamData(
const base::FilePath::StringType& data,
std::vector<std::unique_ptr<TestStream>>* test_streams) {
// Split the string to individual test stream data.
std::vector<base::FilePath::StringType> test_streams_data =
base::SplitString(data, base::FilePath::StringType(1, ';'),
base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
LOG_ASSERT(test_streams_data.size() >= 1U) << data;
// Parse each test stream data and read the input file.
for (size_t index = 0; index < test_streams_data.size(); ++index) {
std::vector<base::FilePath::StringType> fields = base::SplitString(
test_streams_data[index], base::FilePath::StringType(1, ','),
base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
// Try using ":" as the seperator if "," isn't used.
if (fields.size() == 1U) {
fields = base::SplitString(test_streams_data[index],
base::FilePath::StringType(1, ':'),
base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
}
LOG_ASSERT(fields.size() >= 4U) << data;
LOG_ASSERT(fields.size() <= 11U) << data;
auto test_stream = std::make_unique<TestStream>();
test_stream->in_filename = FilePathStringTypeToString(fields[0]);
int width, height;
bool result = base::StringToInt(fields[1], &width);
LOG_ASSERT(result);
result = base::StringToInt(fields[2], &height);
LOG_ASSERT(result);
test_stream->visible_size = gfx::Size(width, height);
LOG_ASSERT(!test_stream->visible_size.IsEmpty());
int profile;
result = base::StringToInt(fields[3], &profile);
LOG_ASSERT(result);
LOG_ASSERT(profile > VIDEO_CODEC_PROFILE_UNKNOWN);
LOG_ASSERT(profile <= VIDEO_CODEC_PROFILE_MAX);
test_stream->requested_profile = static_cast<VideoCodecProfile>(profile);
test_stream->pixel_format = PIXEL_FORMAT_I420;
if (fields.size() >= 5 && !fields[4].empty())
test_stream->out_filename = FilePathStringTypeToString(fields[4]);
if (fields.size() >= 6 && !fields[5].empty())
LOG_ASSERT(
base::StringToUint(fields[5], &test_stream->requested_bitrate));
if (fields.size() >= 7 && !fields[6].empty())
LOG_ASSERT(
base::StringToUint(fields[6], &test_stream->requested_framerate));
if (fields.size() >= 8 && !fields[7].empty()) {
LOG_ASSERT(base::StringToUint(
fields[7], &test_stream->requested_subsequent_bitrate));
}
if (fields.size() >= 9 && !fields[8].empty()) {
LOG_ASSERT(base::StringToUint(
fields[8], &test_stream->requested_subsequent_framerate));
}
if (fields.size() >= 10 && !fields[9].empty()) {
unsigned int format = 0;
LOG_ASSERT(base::StringToUint(fields[9], &format));
test_stream->pixel_format = static_cast<VideoPixelFormat>(format);
}
if (fields.size() >= 11 && !fields[10].empty()) {
unsigned int requested_level = 0;
LOG_ASSERT(base::StringToUint(fields[10], &requested_level));
test_stream->requested_level =
base::checked_cast<uint8_t>(requested_level);
}
test_streams->push_back(std::move(test_stream));
}
}
// Check if the parameter set in |test_stream| are valid for initializing
// encoder.
static bool CheckH264InitConfigValidity(const TestStream* test_stream) {
if (!test_stream->requested_level)
return true; // regard as valid if level is not assigned.
constexpr size_t kH264MacroblockSizeInPixels = 16;
gfx::Size coded_size =
gfx::Size(base::bits::Align(test_stream->visible_size.width(),
kH264MacroblockSizeInPixels),
base::bits::Align(test_stream->visible_size.height(),
kH264MacroblockSizeInPixels));
uint32_t framesize_in_mbs =
coded_size.GetArea() /
(kH264MacroblockSizeInPixels * kH264MacroblockSizeInPixels);
// Check if frame size, initial bitrate and macroblock processing rate are
// valid from the limit of profile and level.
return CheckH264LevelLimits(
test_stream->requested_profile, test_stream->requested_level.value(),
test_stream->requested_bitrate, test_stream->requested_framerate,
framesize_in_mbs);
}
// Basic test environment shared across multiple test cases. We only need to
// setup it once for all test cases.
// It helps
// - maintain test stream data and other test settings.
// - clean up temporary aligned files.
// - output log to file.
class VideoEncodeAcceleratorTestEnvironment : public ::testing::Environment {
public:
VideoEncodeAcceleratorTestEnvironment(
std::unique_ptr<base::FilePath::StringType> data,
const base::FilePath& log_path,
const base::FilePath& frame_stats_path,
bool run_at_fps,
bool needs_encode_latency,
bool verify_all_output)
: rendering_thread_("GLRenderingVEAClientThread"),
test_stream_data_(std::move(data)),
log_path_(log_path),
frame_stats_path_(frame_stats_path),
run_at_fps_(run_at_fps),
needs_encode_latency_(needs_encode_latency),
verify_all_output_(verify_all_output) {}
virtual void SetUp() {
if (!log_path_.empty()) {
log_file_.reset(new base::File(
log_path_, base::File::FLAG_CREATE_ALWAYS | base::File::FLAG_WRITE));
LOG_ASSERT(log_file_->IsValid());
}
ParseAndReadTestStreamData(*test_stream_data_, &test_streams_);
#if defined(USE_OZONE)
// Initialize Ozone so that DMABuf can be created through Ozone DRM.
ui::OzonePlatform::InitParams params;
params.single_process = true;
ui::OzonePlatform::InitializeForUI(params);
base::Thread::Options options;
options.message_pump_type = base::MessagePumpType::UI;
ASSERT_TRUE(rendering_thread_.StartWithOptions(options));
base::WaitableEvent done(base::WaitableEvent::ResetPolicy::AUTOMATIC,
base::WaitableEvent::InitialState::NOT_SIGNALED);
rendering_thread_.task_runner()->PostTask(
FROM_HERE,
base::BindOnce(&VideoEncodeAcceleratorTestEnvironment::SetupOzone,
&done));
done.Wait();
// To create dmabuf through gbm, Ozone needs to be set up.
gpu_helper.reset(new ui::OzoneGpuTestHelper());
gpu_helper->Initialize(base::ThreadTaskRunnerHandle::Get());
#else
ASSERT_TRUE(rendering_thread_.Start());
#endif
}
virtual void TearDown() {
log_file_.reset();
rendering_thread_.Stop();
}
scoped_refptr<base::SingleThreadTaskRunner> GetRenderingTaskRunner() const {
return rendering_thread_.task_runner();
}
void FlushRenderingThread() { rendering_thread_.FlushForTesting(); }
// Log one entry of machine-readable data to file and LOG(INFO).
// The log has one data entry per line in the format of "<key>: <value>".
// Note that Chrome OS video_VEAPerf autotest parses the output key and value
// pairs. Be sure to keep the autotest in sync.
void LogToFile(const std::string& key, const std::string& value) {
std::string s = base::StringPrintf("%s: %s\n", key.c_str(), value.c_str());
LOG(INFO) << s;
if (log_file_) {
log_file_->WriteAtCurrentPos(s.data(), static_cast<int>(s.length()));
}
}
// Feed the encoder with the input buffers at the requested framerate. If
// false, feed as fast as possible. This is set by the command line switch
// "--run_at_fps".
bool run_at_fps() const { return run_at_fps_; }
// Whether to measure encode latency. This is set by the command line switch
// "--measure_latency".
bool needs_encode_latency() const { return needs_encode_latency_; }
// Verify the encoder output of all testcases. This is set by the command line
// switch "--verify_all_output".
bool verify_all_output() const { return verify_all_output_; }
const base::FilePath& frame_stats_path() const { return frame_stats_path_; }
std::vector<std::unique_ptr<TestStream>> test_streams_;
private:
base::Thread rendering_thread_;
std::unique_ptr<base::FilePath::StringType> test_stream_data_;
base::FilePath log_path_;
base::FilePath frame_stats_path_;
std::unique_ptr<base::File> log_file_;
bool run_at_fps_;
bool needs_encode_latency_;
bool verify_all_output_;
#if defined(USE_OZONE)
std::unique_ptr<ui::OzoneGpuTestHelper> gpu_helper;
static void SetupOzone(base::WaitableEvent* done) {
base::CommandLine* cmd_line = base::CommandLine::ForCurrentProcess();
cmd_line->AppendSwitchASCII(switches::kUseGL, gl::kGLImplementationEGLName);
ui::OzonePlatform::InitParams params;
params.single_process = true;
ui::OzonePlatform::InitializeForGPU(params);
done->Signal();
}
#endif
};
enum ClientState {
CS_CREATED, // Encoder is created.
CS_INITIALIZED, // Encoder initialization is finished.
CS_ENCODING, // Encoder is encoding.
CS_FLUSHING, // Ask encoder to flush.
CS_FINISHED, // Encoding has finished, all frames are encoded.
CS_FLUSHED, // Encoder notifies the flush is finished.
CS_VALIDATED, // Encoded frame quality has been validated.
CS_ERROR, // Any error occurs.
};
// Performs basic, codec-specific sanity checks on the stream buffers passed
// to ProcessStreamBuffer(): whether we've seen keyframes before non-keyframes,
// correct sequences of H.264 NALUs (SPS before PPS and before slices), etc.
// Calls given FrameFoundCallback when a complete frame is found while
// processing.
class StreamValidator {
public:
// To be called when a complete frame is found while processing a stream
// buffer, passing true if the frame is a keyframe and the visible size.
// Returns false if we are not interested in more frames and further
// processing should be aborted.
typedef base::RepeatingCallback<bool(bool, const gfx::Size&)>
FrameFoundCallback;
virtual ~StreamValidator() {}
// Provide a StreamValidator instance for the given |profile| and |level|.
// |level| is optional and should specified only if codec is h264.
static std::unique_ptr<StreamValidator> Create(VideoCodecProfile profile,
base::Optional<uint8_t> level,
FrameFoundCallback frame_cb);
// Process and verify contents of a bitstream buffer.
virtual void ProcessStreamBuffer(const uint8_t* stream, size_t size) = 0;
protected:
explicit StreamValidator(FrameFoundCallback frame_cb)
: frame_cb_(std::move(frame_cb)) {}
FrameFoundCallback frame_cb_;
gfx::Size visible_size_;
};
class H264Validator : public StreamValidator {
public:
H264Validator(base::Optional<uint8_t> level, FrameFoundCallback frame_cb)
: StreamValidator(std::move(frame_cb)),
target_level_(level),
seen_sps_(false),
seen_pps_(false),
seen_idr_(false),
curr_pic_(new H264Picture) {}
void ProcessStreamBuffer(const uint8_t* stream, size_t size) override;
private:
bool IsNewPicture(const H264SliceHeader& slice_hdr);
bool UpdateCurrentPicture(const H264SliceHeader& slice_hdr);
// H264Validator will check output level with the value of |target_level_|
// unless it is base::nullopt.
base::Optional<uint8_t> target_level_;
// Set to true when encoder provides us with the corresponding NALU type.
bool seen_sps_;
bool seen_pps_;
bool seen_idr_;
scoped_refptr<H264Picture> curr_pic_;
int curr_sps_id_ = -1;
int curr_pps_id_ = -1;
H264Parser h264_parser_;
};
void H264Validator::ProcessStreamBuffer(const uint8_t* stream, size_t size) {
h264_parser_.SetStream(stream, static_cast<off_t>(size));
while (1) {
H264NALU nalu;
H264Parser::Result result;
result = h264_parser_.AdvanceToNextNALU(&nalu);
if (result == H264Parser::kEOStream)
break;
ASSERT_EQ(H264Parser::kOk, result);
bool keyframe = false;
switch (nalu.nal_unit_type) {
case H264NALU::kIDRSlice:
ASSERT_TRUE(seen_sps_);
ASSERT_TRUE(seen_pps_);
seen_idr_ = true;
keyframe = true;
FALLTHROUGH;
case H264NALU::kNonIDRSlice: {
ASSERT_TRUE(seen_idr_);
H264SliceHeader slice_hdr;
ASSERT_EQ(H264Parser::kOk,
h264_parser_.ParseSliceHeader(nalu, &slice_hdr));
if (IsNewPicture(slice_hdr)) {
if (!frame_cb_.Run(keyframe, visible_size_))
return;
ASSERT_TRUE(UpdateCurrentPicture(slice_hdr));
}
break;
}
case H264NALU::kSPS: {
int sps_id;
ASSERT_EQ(H264Parser::kOk, h264_parser_.ParseSPS(&sps_id));
// Check the visible size.
gfx::Rect visible_size =
h264_parser_.GetSPS(sps_id)->GetVisibleRect().value_or(gfx::Rect());
ASSERT_FALSE(visible_size.IsEmpty());
visible_size_ = visible_size.size();
// Check the output level is equal to target level.
if (target_level_) {
LOG(INFO) << "Target level: "
<< static_cast<int>(target_level_.value())
<< ", output level: "
<< static_cast<int>(
h264_parser_.GetSPS(sps_id)->GetIndicatedLevel());
ASSERT_EQ(h264_parser_.GetSPS(sps_id)->GetIndicatedLevel(),
target_level_.value());
}
seen_sps_ = true;
break;
}
case H264NALU::kPPS: {
ASSERT_TRUE(seen_sps_);
int pps_id;
ASSERT_EQ(H264Parser::kOk, h264_parser_.ParsePPS(&pps_id));
seen_pps_ = true;
break;
}
default:
break;
}
}
}
bool H264Validator::IsNewPicture(const H264SliceHeader& slice_hdr) {
if (!curr_pic_)
return true;
return H264Decoder::IsNewPrimaryCodedPicture(
curr_pic_.get(), curr_pps_id_, h264_parser_.GetSPS(curr_sps_id_),
slice_hdr);
}
bool H264Validator::UpdateCurrentPicture(const H264SliceHeader& slice_hdr) {
curr_pps_id_ = slice_hdr.pic_parameter_set_id;
const H264PPS* pps = h264_parser_.GetPPS(curr_pps_id_);
if (!pps) {
LOG(ERROR) << "Cannot parse pps.";
return false;
}
curr_sps_id_ = pps->seq_parameter_set_id;
const H264SPS* sps = h264_parser_.GetSPS(curr_sps_id_);
if (!sps) {
LOG(ERROR) << "Cannot parse sps.";
return false;
}
if (!H264Decoder::FillH264PictureFromSliceHeader(sps, slice_hdr,
curr_pic_.get())) {
LOG(FATAL) << "Cannot initialize current frame.";
return false;
}
return true;
}
class VP8Validator : public StreamValidator {
public:
explicit VP8Validator(FrameFoundCallback frame_cb)
: StreamValidator(std::move(frame_cb)), seen_keyframe_(false) {}
void ProcessStreamBuffer(const uint8_t* stream, size_t size) override;
private: