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video_decode_accelerator_unittest.cc
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video_decode_accelerator_unittest.cc
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// Copyright (c) 2012 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.
//
// The bulk of this file is support code; sorry about that. Here's an overview
// to hopefully help readers of this code:
// - RenderingHelper is charged with interacting with X11/{EGL/GLES2,GLX/GL} or
// Win/EGL.
// - ClientState is an enum for the state of the decode client used by the test.
// - ClientStateNotification is a barrier abstraction that allows the test code
// to be written sequentially and wait for the decode client to see certain
// state transitions.
// - GLRenderingVDAClient is a VideoDecodeAccelerator::Client implementation
// - Finally actual TEST cases are at the bottom of this file, using the above
// infrastructure.
#include <fcntl.h>
#include <stddef.h>
#include <stdint.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <algorithm>
#include <deque>
#include <map>
#include <memory>
#include <tuple>
#include <utility>
#include "base/at_exit.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/command_line.h"
#include "base/files/file.h"
#include "base/files/file_util.h"
#include "base/format_macros.h"
#include "base/location.h"
#include "base/macros.h"
#include "base/md5.h"
#include "base/memory/ptr_util.h"
#include "base/process/process_handle.h"
#include "base/single_thread_task_runner.h"
#include "base/stl_util.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/stringize_macros.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/synchronization/condition_variable.h"
#include "base/synchronization/lock.h"
#include "base/synchronization/waitable_event.h"
#include "base/test/launcher/unit_test_launcher.h"
#include "base/test/scoped_task_scheduler.h"
#include "base/test/test_suite.h"
#include "base/threading/thread.h"
#include "base/threading/thread_task_runner_handle.h"
#include "build/build_config.h"
#include "gpu/command_buffer/service/gpu_preferences.h"
#include "gpu/config/gpu_driver_bug_workarounds.h"
#include "media/base/test_data_util.h"
#include "media/filters/h264_parser.h"
#include "media/gpu/fake_video_decode_accelerator.h"
#include "media/gpu/gpu_video_decode_accelerator_factory.h"
#include "media/gpu/rendering_helper.h"
#include "media/gpu/video_accelerator_unittest_helpers.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/codec/png_codec.h"
#include "ui/gl/gl_image.h"
#if defined(OS_WIN)
#include "base/win/windows_version.h"
#include "media/gpu/dxva_video_decode_accelerator_win.h"
#elif defined(OS_CHROMEOS)
#if defined(USE_V4L2_CODEC)
#include "media/gpu/v4l2_device.h"
#include "media/gpu/v4l2_slice_video_decode_accelerator.h"
#include "media/gpu/v4l2_video_decode_accelerator.h"
#endif
#if defined(ARCH_CPU_X86_FAMILY)
#include "media/gpu/vaapi_video_decode_accelerator.h"
#include "media/gpu/vaapi_wrapper.h"
#endif // defined(ARCH_CPU_X86_FAMILY)
#else
#error The VideoAccelerator tests are not supported on this platform.
#endif // OS_WIN
#if defined(USE_OZONE)
#include "ui/ozone/public/native_pixmap.h"
#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 // defined(USE_OZONE)
namespace media {
namespace {
// Values optionally filled in from flags; see main() below.
// The syntax of multiple test videos is:
// test-video1;test-video2;test-video3
// where only the first video is required and other optional videos would be
// decoded by concurrent decoders.
// The syntax of each test-video is:
// filename:width:height:numframes:numfragments:minFPSwithRender:minFPSnoRender
// where only the first field is required. Value details:
// - |filename| must be an h264 Annex B (NAL) stream or an IVF VP8/9 stream.
// - |width| and |height| are in pixels.
// - |numframes| is the number of picture frames in the file.
// - |numfragments| NALU (h264) or frame (VP8/9) count in the stream.
// - |minFPSwithRender| and |minFPSnoRender| are minimum frames/second speeds
// expected to be achieved with and without rendering to the screen, resp.
// (the latter tests just decode speed).
// - |profile| is the VideoCodecProfile set during Initialization.
// An empty value for a numeric field means "ignore".
const base::FilePath::CharType* g_test_video_data =
// FILE_PATH_LITERAL("test-25fps.vp8:320:240:250:250:50:175:11");
FILE_PATH_LITERAL("test-25fps.h264:320:240:250:258:50:175:1");
// The file path of the test output log. This is used to communicate the test
// results to CrOS autotests. We can enable the log and specify the filename by
// the "--output_log" switch.
const base::FilePath::CharType* g_output_log = NULL;
// The value is set by the switch "--rendering_fps".
double g_rendering_fps = 60;
// The value is set by the switch "--rendering_warm_up".
int g_rendering_warm_up = 0;
// The value is set by the switch "--num_play_throughs". The video will play
// the specified number of times. In different test cases, we have different
// values for |num_play_throughs|. This setting will override the value. A
// special value "0" means no override.
int g_num_play_throughs = 0;
// Fake decode
int g_fake_decoder = 0;
// Test buffer import into VDA, providing buffers allocated by us, instead of
// requesting the VDA itself to allocate buffers.
bool g_test_import = false;
// This is the location of the test files. If empty, they're in the current
// working directory.
base::FilePath g_test_file_path;
// Environment to store rendering thread.
class VideoDecodeAcceleratorTestEnvironment;
VideoDecodeAcceleratorTestEnvironment* g_env;
// Magic constants for differentiating the reasons for NotifyResetDone being
// called.
enum ResetPoint {
// Reset() just after calling Decode() with a fragment containing config info.
RESET_AFTER_FIRST_CONFIG_INFO = -4,
START_OF_STREAM_RESET = -3,
MID_STREAM_RESET = -2,
END_OF_STREAM_RESET = -1
};
const int kMaxResetAfterFrameNum = 100;
const int kMaxFramesToDelayReuse = 64;
const base::TimeDelta kReuseDelay = base::TimeDelta::FromSeconds(1);
// Simulate WebRTC and call VDA::Decode 30 times per second.
const int kWebRtcDecodeCallsPerSecond = 30;
// Simulate an adjustment to a larger number of pictures to make sure the
// decoder supports an upwards adjustment.
const int kExtraPictureBuffers = 2;
struct TestVideoFile {
explicit TestVideoFile(base::FilePath::StringType file_name)
: file_name(file_name),
width(-1),
height(-1),
num_frames(-1),
num_fragments(-1),
min_fps_render(-1),
min_fps_no_render(-1),
profile(VIDEO_CODEC_PROFILE_UNKNOWN),
reset_after_frame_num(END_OF_STREAM_RESET) {}
base::FilePath::StringType file_name;
int width;
int height;
int num_frames;
int num_fragments;
int min_fps_render;
int min_fps_no_render;
VideoCodecProfile profile;
int reset_after_frame_num;
std::string data_str;
};
const gfx::Size kThumbnailsPageSize(1600, 1200);
const gfx::Size kThumbnailSize(160, 120);
const int kMD5StringLength = 32;
base::FilePath GetTestDataFile(const base::FilePath& input_file) {
if (input_file.IsAbsolute())
return input_file;
return base::MakeAbsoluteFilePath(g_test_file_path.Append(input_file));
}
// Read in golden MD5s for the thumbnailed rendering of this video
void ReadGoldenThumbnailMD5s(const TestVideoFile* video_file,
std::vector<std::string>* md5_strings) {
base::FilePath filepath(video_file->file_name);
filepath = filepath.AddExtension(FILE_PATH_LITERAL(".md5"));
std::string all_md5s;
base::ReadFileToString(GetTestDataFile(filepath), &all_md5s);
*md5_strings = base::SplitString(all_md5s, "\n", base::TRIM_WHITESPACE,
base::SPLIT_WANT_ALL);
// Check these are legitimate MD5s.
for (const std::string& md5_string : *md5_strings) {
// Ignore the empty string added by SplitString
if (!md5_string.length())
continue;
// Ignore comments
if (md5_string.at(0) == '#')
continue;
LOG_IF(ERROR, static_cast<int>(md5_string.length()) != kMD5StringLength)
<< "MD5 length error: " << md5_string;
bool hex_only = std::count_if(md5_string.begin(), md5_string.end(),
isxdigit) == kMD5StringLength;
LOG_IF(ERROR, !hex_only) << "MD5 includes non-hex char: " << md5_string;
}
LOG_IF(ERROR, md5_strings->empty()) << " MD5 checksum file ("
<< filepath.MaybeAsASCII()
<< ") missing or empty.";
}
// State of the GLRenderingVDAClient below. Order matters here as the test
// makes assumptions about it.
enum ClientState {
CS_CREATED = 0,
CS_DECODER_SET = 1,
CS_INITIALIZED = 2,
CS_FLUSHING = 3,
CS_FLUSHED = 4,
CS_RESETTING = 5,
CS_RESET = 6,
CS_ERROR = 7,
CS_DESTROYED = 8,
CS_MAX, // Must be last entry.
};
// Initialize the GPU thread for rendering. We only need to setup once
// for all test cases.
class VideoDecodeAcceleratorTestEnvironment : public ::testing::Environment {
public:
VideoDecodeAcceleratorTestEnvironment()
: rendering_thread_("GLRenderingVDAClientThread") {}
void SetUp() override {
base::Thread::Options options;
#if defined(OS_WIN)
options.message_loop_type = base::MessageLoop::TYPE_UI;
#endif
rendering_thread_.StartWithOptions(options);
base::WaitableEvent done(base::WaitableEvent::ResetPolicy::AUTOMATIC,
base::WaitableEvent::InitialState::NOT_SIGNALED);
rendering_thread_.task_runner()->PostTask(
FROM_HERE, base::Bind(&RenderingHelper::InitializeOneOff, &done));
done.Wait();
#if defined(USE_OZONE)
gpu_helper_.reset(new ui::OzoneGpuTestHelper());
// Need to initialize after the rendering side since the rendering side
// initializes the "GPU" parts of Ozone.
//
// This also needs to be done in the test environment since this shouldn't
// be initialized multiple times for the same Ozone platform.
gpu_helper_->Initialize(base::ThreadTaskRunnerHandle::Get(),
GetRenderingTaskRunner());
#endif
}
void TearDown() override {
#if defined(USE_OZONE)
gpu_helper_.reset();
#endif
rendering_thread_.Stop();
}
scoped_refptr<base::SingleThreadTaskRunner> GetRenderingTaskRunner() const {
return rendering_thread_.task_runner();
}
private:
base::Thread rendering_thread_;
#if defined(USE_OZONE)
std::unique_ptr<ui::OzoneGpuTestHelper> gpu_helper_;
#endif
DISALLOW_COPY_AND_ASSIGN(VideoDecodeAcceleratorTestEnvironment);
};
// A helper class used to manage the lifetime of a Texture. Can be backed by
// either a buffer allocated by the VDA, or by a preallocated pixmap.
class TextureRef : public base::RefCounted<TextureRef> {
public:
static scoped_refptr<TextureRef> Create(
uint32_t texture_id,
const base::Closure& no_longer_needed_cb);
static scoped_refptr<TextureRef> CreatePreallocated(
uint32_t texture_id,
const base::Closure& no_longer_needed_cb,
VideoPixelFormat pixel_format,
const gfx::Size& size);
gfx::GpuMemoryBufferHandle ExportGpuMemoryBufferHandle() const;
int32_t texture_id() const { return texture_id_; }
private:
friend class base::RefCounted<TextureRef>;
TextureRef(uint32_t texture_id, const base::Closure& no_longer_needed_cb)
: texture_id_(texture_id), no_longer_needed_cb_(no_longer_needed_cb) {}
~TextureRef();
uint32_t texture_id_;
base::Closure no_longer_needed_cb_;
#if defined(USE_OZONE)
scoped_refptr<ui::NativePixmap> pixmap_;
#endif
};
TextureRef::~TextureRef() {
base::ResetAndReturn(&no_longer_needed_cb_).Run();
}
// static
scoped_refptr<TextureRef> TextureRef::Create(
uint32_t texture_id,
const base::Closure& no_longer_needed_cb) {
return make_scoped_refptr(new TextureRef(texture_id, no_longer_needed_cb));
}
#if defined(USE_OZONE)
gfx::BufferFormat VideoPixelFormatToGfxBufferFormat(
VideoPixelFormat pixel_format) {
switch (pixel_format) {
case VideoPixelFormat::PIXEL_FORMAT_ARGB:
return gfx::BufferFormat::BGRA_8888;
case VideoPixelFormat::PIXEL_FORMAT_XRGB:
return gfx::BufferFormat::BGRX_8888;
case VideoPixelFormat::PIXEL_FORMAT_NV12:
return gfx::BufferFormat::YUV_420_BIPLANAR;
default:
LOG_ASSERT(false) << "Unknown VideoPixelFormat";
return gfx::BufferFormat::BGRX_8888;
}
}
#endif
// static
scoped_refptr<TextureRef> TextureRef::CreatePreallocated(
uint32_t texture_id,
const base::Closure& no_longer_needed_cb,
VideoPixelFormat pixel_format,
const gfx::Size& size) {
scoped_refptr<TextureRef> texture_ref;
#if defined(USE_OZONE)
texture_ref = TextureRef::Create(texture_id, no_longer_needed_cb);
LOG_ASSERT(texture_ref);
ui::OzonePlatform* platform = ui::OzonePlatform::GetInstance();
ui::SurfaceFactoryOzone* factory = platform->GetSurfaceFactoryOzone();
gfx::BufferFormat buffer_format =
VideoPixelFormatToGfxBufferFormat(pixel_format);
texture_ref->pixmap_ =
factory->CreateNativePixmap(gfx::kNullAcceleratedWidget, size,
buffer_format, gfx::BufferUsage::SCANOUT);
LOG_ASSERT(texture_ref->pixmap_);
#endif
return texture_ref;
}
gfx::GpuMemoryBufferHandle TextureRef::ExportGpuMemoryBufferHandle() const {
gfx::GpuMemoryBufferHandle handle;
#if defined(USE_OZONE)
CHECK(pixmap_);
int duped_fd = HANDLE_EINTR(dup(pixmap_->GetDmaBufFd(0)));
LOG_ASSERT(duped_fd != -1) << "Failed duplicating dmabuf fd";
handle.type = gfx::OZONE_NATIVE_PIXMAP;
handle.native_pixmap_handle.fds.emplace_back(
base::FileDescriptor(duped_fd, true));
handle.native_pixmap_handle.planes.emplace_back(
pixmap_->GetDmaBufPitch(0), pixmap_->GetDmaBufOffset(0), 0,
pixmap_->GetDmaBufModifier(0));
#endif
return handle;
}
// Client that can accept callbacks from a VideoDecodeAccelerator and is used by
// the TESTs below.
class GLRenderingVDAClient
: public VideoDecodeAccelerator::Client,
public base::SupportsWeakPtr<GLRenderingVDAClient> {
public:
// |window_id| the window_id of the client, which is used to identify the
// rendering area in the |rendering_helper|.
// Doesn't take ownership of |rendering_helper| or |note|, which must outlive
// |*this|.
// |num_play_throughs| indicates how many times to play through the video.
// |reset_after_frame_num| can be a frame number >=0 indicating a mid-stream
// Reset() should be done after that frame number is delivered, or
// END_OF_STREAM_RESET to indicate no mid-stream Reset().
// |delete_decoder_state| indicates when the underlying decoder should be
// Destroy()'d and deleted and can take values: N<0: delete after -N Decode()
// calls have been made, N>=0 means interpret as ClientState.
// Both |reset_after_frame_num| & |delete_decoder_state| apply only to the
// last play-through (governed by |num_play_throughs|).
// |suppress_rendering| indicates GL rendering is supressed or not.
// After |delay_reuse_after_frame_num| frame has been delivered, the client
// will start delaying the call to ReusePictureBuffer() for kReuseDelay.
// |decode_calls_per_second| is the number of VDA::Decode calls per second.
// If |decode_calls_per_second| > 0, |num_in_flight_decodes| must be 1.
GLRenderingVDAClient(size_t window_id,
RenderingHelper* rendering_helper,
ClientStateNotification<ClientState>* note,
const std::string& encoded_data,
int num_in_flight_decodes,
int num_play_throughs,
int reset_after_frame_num,
int delete_decoder_state,
int frame_width,
int frame_height,
VideoCodecProfile profile,
int fake_decoder,
bool suppress_rendering,
int delay_reuse_after_frame_num,
int decode_calls_per_second,
bool render_as_thumbnails);
~GLRenderingVDAClient() override;
void CreateAndStartDecoder();
// VideoDecodeAccelerator::Client implementation.
// The heart of the Client.
void ProvidePictureBuffers(uint32_t requested_num_of_buffers,
VideoPixelFormat format,
uint32_t textures_per_buffer,
const gfx::Size& dimensions,
uint32_t texture_target) override;
void DismissPictureBuffer(int32_t picture_buffer_id) override;
void PictureReady(const Picture& picture) override;
// Simple state changes.
void NotifyEndOfBitstreamBuffer(int32_t bitstream_buffer_id) override;
void NotifyFlushDone() override;
void NotifyResetDone() override;
void NotifyError(VideoDecodeAccelerator::Error error) override;
void OutputFrameDeliveryTimes(base::File* output);
// Simple getters for inspecting the state of the Client.
int num_done_bitstream_buffers() { return num_done_bitstream_buffers_; }
int num_skipped_fragments() { return num_skipped_fragments_; }
int num_queued_fragments() { return num_queued_fragments_; }
int num_decoded_frames() { return num_decoded_frames_; }
double frames_per_second();
// Return the median of the decode time of all decoded frames.
base::TimeDelta decode_time_median();
bool decoder_deleted() { return !decoder_.get(); }
private:
typedef std::map<int32_t, scoped_refptr<TextureRef>> TextureRefMap;
void SetState(ClientState new_state);
void FinishInitialization();
void ReturnPicture(int32_t picture_buffer_id);
// Delete the associated decoder helper.
void DeleteDecoder();
// Compute & return the first encoded bytes (including a start frame) to send
// to the decoder, starting at |start_pos| and returning one fragment. Skips
// to the first decodable position.
std::string GetBytesForFirstFragment(size_t start_pos, size_t* end_pos);
// Compute & return the encoded bytes of next fragment to send to the decoder
// (based on |start_pos|).
std::string GetBytesForNextFragment(size_t start_pos, size_t* end_pos);
// Helpers for GetBytesForNextFragment above.
void GetBytesForNextNALU(size_t start_pos, size_t* end_pos); // For h.264.
std::string GetBytesForNextFrame(size_t start_pos,
size_t* end_pos); // For VP8/9.
// Request decode of the next fragment in the encoded data.
void DecodeNextFragment();
size_t window_id_;
RenderingHelper* rendering_helper_;
gfx::Size frame_size_;
std::string encoded_data_;
const int num_in_flight_decodes_;
int outstanding_decodes_;
size_t encoded_data_next_pos_to_decode_;
int next_bitstream_buffer_id_;
ClientStateNotification<ClientState>* note_;
std::unique_ptr<VideoDecodeAccelerator> decoder_;
base::WeakPtr<VideoDecodeAccelerator> weak_vda_;
std::unique_ptr<base::WeakPtrFactory<VideoDecodeAccelerator>>
weak_vda_ptr_factory_;
std::unique_ptr<GpuVideoDecodeAcceleratorFactory> vda_factory_;
int remaining_play_throughs_;
int reset_after_frame_num_;
int delete_decoder_state_;
ClientState state_;
int num_skipped_fragments_;
int num_queued_fragments_;
int num_decoded_frames_;
int num_done_bitstream_buffers_;
base::TimeTicks initialize_done_ticks_;
VideoCodecProfile profile_;
int fake_decoder_;
GLenum texture_target_;
VideoPixelFormat pixel_format_;
bool suppress_rendering_;
std::vector<base::TimeTicks> frame_delivery_times_;
int delay_reuse_after_frame_num_;
// A map from bitstream buffer id to the decode start time of the buffer.
std::map<int, base::TimeTicks> decode_start_time_;
// The decode time of all decoded frames.
std::vector<base::TimeDelta> decode_time_;
// The number of VDA::Decode calls per second. This is to simulate webrtc.
int decode_calls_per_second_;
bool render_as_thumbnails_;
// A map of the textures that are currently active for the decoder, i.e.,
// have been created via AssignPictureBuffers() and not dismissed via
// DismissPictureBuffer(). The keys in the map are the IDs of the
// corresponding picture buffers, and the values are TextureRefs to the
// textures.
TextureRefMap active_textures_;
// A map of the textures that are still pending in the renderer.
// We check this to ensure all frames are rendered before entering the
// CS_RESET_State.
TextureRefMap pending_textures_;
int32_t next_picture_buffer_id_;
base::WeakPtr<GLRenderingVDAClient> weak_this_;
base::WeakPtrFactory<GLRenderingVDAClient> weak_this_factory_;
DISALLOW_IMPLICIT_CONSTRUCTORS(GLRenderingVDAClient);
};
static bool DoNothingReturnTrue() {
return true;
}
static bool DummyBindImage(uint32_t client_texture_id,
uint32_t texture_target,
const scoped_refptr<gl::GLImage>& image,
bool can_bind_to_sampler) {
return true;
}
GLRenderingVDAClient::GLRenderingVDAClient(
size_t window_id,
RenderingHelper* rendering_helper,
ClientStateNotification<ClientState>* note,
const std::string& encoded_data,
int num_in_flight_decodes,
int num_play_throughs,
int reset_after_frame_num,
int delete_decoder_state,
int frame_width,
int frame_height,
VideoCodecProfile profile,
int fake_decoder,
bool suppress_rendering,
int delay_reuse_after_frame_num,
int decode_calls_per_second,
bool render_as_thumbnails)
: window_id_(window_id),
rendering_helper_(rendering_helper),
frame_size_(frame_width, frame_height),
encoded_data_(encoded_data),
num_in_flight_decodes_(num_in_flight_decodes),
outstanding_decodes_(0),
encoded_data_next_pos_to_decode_(0),
next_bitstream_buffer_id_(0),
note_(note),
remaining_play_throughs_(num_play_throughs),
reset_after_frame_num_(reset_after_frame_num),
delete_decoder_state_(delete_decoder_state),
state_(CS_CREATED),
num_skipped_fragments_(0),
num_queued_fragments_(0),
num_decoded_frames_(0),
num_done_bitstream_buffers_(0),
fake_decoder_(fake_decoder),
texture_target_(0),
pixel_format_(PIXEL_FORMAT_UNKNOWN),
suppress_rendering_(suppress_rendering),
delay_reuse_after_frame_num_(delay_reuse_after_frame_num),
decode_calls_per_second_(decode_calls_per_second),
render_as_thumbnails_(render_as_thumbnails),
next_picture_buffer_id_(1),
weak_this_factory_(this) {
LOG_ASSERT(num_in_flight_decodes > 0);
LOG_ASSERT(num_play_throughs > 0);
// |num_in_flight_decodes_| is unsupported if |decode_calls_per_second_| > 0.
if (decode_calls_per_second_ > 0)
LOG_ASSERT(1 == num_in_flight_decodes_);
// Default to H264 baseline if no profile provided.
profile_ =
(profile != VIDEO_CODEC_PROFILE_UNKNOWN ? profile : H264PROFILE_BASELINE);
weak_this_ = weak_this_factory_.GetWeakPtr();
}
GLRenderingVDAClient::~GLRenderingVDAClient() {
DeleteDecoder(); // Clean up in case of expected error.
LOG_ASSERT(decoder_deleted());
SetState(CS_DESTROYED);
}
void GLRenderingVDAClient::CreateAndStartDecoder() {
LOG_ASSERT(decoder_deleted());
LOG_ASSERT(!decoder_.get());
if (fake_decoder_) {
decoder_.reset(new FakeVideoDecodeAccelerator(
frame_size_, base::Bind(&DoNothingReturnTrue)));
LOG_ASSERT(decoder_->Initialize(profile_, this));
} else {
if (!vda_factory_) {
vda_factory_ = GpuVideoDecodeAcceleratorFactory::Create(
base::Bind(&RenderingHelper::GetGLContext,
base::Unretained(rendering_helper_)),
base::Bind(&DoNothingReturnTrue), base::Bind(&DummyBindImage));
LOG_ASSERT(vda_factory_);
}
VideoDecodeAccelerator::Config config(profile_);
if (g_test_import) {
config.output_mode = VideoDecodeAccelerator::Config::OutputMode::IMPORT;
}
gpu::GpuDriverBugWorkarounds workarounds;
gpu::GpuPreferences gpu_preferences;
decoder_ =
vda_factory_->CreateVDA(this, config, workarounds, gpu_preferences);
}
LOG_ASSERT(decoder_) << "Failed creating a VDA";
decoder_->TryToSetupDecodeOnSeparateThread(
weak_this_, base::ThreadTaskRunnerHandle::Get());
weak_vda_ptr_factory_.reset(
new base::WeakPtrFactory<VideoDecodeAccelerator>(decoder_.get()));
weak_vda_ = weak_vda_ptr_factory_->GetWeakPtr();
SetState(CS_DECODER_SET);
FinishInitialization();
}
void GLRenderingVDAClient::ProvidePictureBuffers(
uint32_t requested_num_of_buffers,
VideoPixelFormat pixel_format,
uint32_t textures_per_buffer,
const gfx::Size& dimensions,
uint32_t texture_target) {
if (decoder_deleted())
return;
LOG_ASSERT(textures_per_buffer == 1u);
std::vector<PictureBuffer> buffers;
requested_num_of_buffers += kExtraPictureBuffers;
if (pixel_format == PIXEL_FORMAT_UNKNOWN)
pixel_format = PIXEL_FORMAT_ARGB;
LOG_ASSERT((pixel_format_ == PIXEL_FORMAT_UNKNOWN) ||
(pixel_format_ == pixel_format));
pixel_format_ = pixel_format;
texture_target_ = texture_target;
for (uint32_t i = 0; i < requested_num_of_buffers; ++i) {
uint32_t texture_id;
base::WaitableEvent done(base::WaitableEvent::ResetPolicy::AUTOMATIC,
base::WaitableEvent::InitialState::NOT_SIGNALED);
rendering_helper_->CreateTexture(texture_target_, &texture_id, dimensions,
&done);
done.Wait();
scoped_refptr<TextureRef> texture_ref;
base::Closure delete_texture_cb =
base::Bind(&RenderingHelper::DeleteTexture,
base::Unretained(rendering_helper_), texture_id);
if (g_test_import) {
texture_ref = TextureRef::CreatePreallocated(
texture_id, delete_texture_cb, pixel_format, dimensions);
} else {
texture_ref = TextureRef::Create(texture_id, delete_texture_cb);
}
LOG_ASSERT(texture_ref);
int32_t picture_buffer_id = next_picture_buffer_id_++;
LOG_ASSERT(
active_textures_.insert(std::make_pair(picture_buffer_id, texture_ref))
.second);
PictureBuffer::TextureIds texture_ids(1, texture_id);
buffers.push_back(PictureBuffer(picture_buffer_id, dimensions,
PictureBuffer::TextureIds(), texture_ids));
}
decoder_->AssignPictureBuffers(buffers);
if (g_test_import) {
for (const auto& buffer : buffers) {
TextureRefMap::iterator texture_it = active_textures_.find(buffer.id());
ASSERT_NE(active_textures_.end(), texture_it);
const gfx::GpuMemoryBufferHandle& handle =
texture_it->second->ExportGpuMemoryBufferHandle();
LOG_ASSERT(!handle.is_null()) << "Failed producing GMB handle";
decoder_->ImportBufferForPicture(buffer.id(), handle);
}
}
}
void GLRenderingVDAClient::DismissPictureBuffer(int32_t picture_buffer_id) {
LOG_ASSERT(1U == active_textures_.erase(picture_buffer_id));
}
void GLRenderingVDAClient::PictureReady(const Picture& picture) {
// We shouldn't be getting pictures delivered after Reset has completed.
LOG_ASSERT(state_ < CS_RESET);
if (decoder_deleted())
return;
gfx::Rect visible_rect = picture.visible_rect();
EXPECT_TRUE(visible_rect.IsEmpty() || visible_rect == gfx::Rect(frame_size_));
base::TimeTicks now = base::TimeTicks::Now();
frame_delivery_times_.push_back(now);
// Save the decode time of this picture.
std::map<int, base::TimeTicks>::iterator it =
decode_start_time_.find(picture.bitstream_buffer_id());
ASSERT_NE(decode_start_time_.end(), it);
decode_time_.push_back(now - it->second);
decode_start_time_.erase(it);
LOG_ASSERT(picture.bitstream_buffer_id() <= next_bitstream_buffer_id_);
++num_decoded_frames_;
// Mid-stream reset applies only to the last play-through per constructor
// comment.
if (remaining_play_throughs_ == 1 &&
reset_after_frame_num_ == num_decoded_frames_) {
reset_after_frame_num_ = MID_STREAM_RESET;
decoder_->Reset();
// Re-start decoding from the beginning of the stream to avoid needing to
// know how to find I-frames and so on in this test.
encoded_data_next_pos_to_decode_ = 0;
}
TextureRefMap::iterator texture_it =
active_textures_.find(picture.picture_buffer_id());
ASSERT_NE(active_textures_.end(), texture_it);
scoped_refptr<VideoFrameTexture> video_frame = new VideoFrameTexture(
texture_target_, texture_it->second->texture_id(),
base::Bind(&GLRenderingVDAClient::ReturnPicture, AsWeakPtr(),
picture.picture_buffer_id()));
ASSERT_TRUE(pending_textures_.insert(*texture_it).second);
if (render_as_thumbnails_) {
rendering_helper_->RenderThumbnail(video_frame->texture_target(),
video_frame->texture_id());
} else if (!suppress_rendering_) {
rendering_helper_->QueueVideoFrame(window_id_, video_frame);
}
}
void GLRenderingVDAClient::ReturnPicture(int32_t picture_buffer_id) {
if (decoder_deleted())
return;
LOG_ASSERT(1U == pending_textures_.erase(picture_buffer_id));
if (pending_textures_.empty() && state_ == CS_RESETTING) {
SetState(CS_RESET);
DeleteDecoder();
return;
}
if (num_decoded_frames_ > delay_reuse_after_frame_num_) {
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE, base::Bind(&VideoDecodeAccelerator::ReusePictureBuffer,
weak_vda_, picture_buffer_id),
kReuseDelay);
} else {
decoder_->ReusePictureBuffer(picture_buffer_id);
}
}
void GLRenderingVDAClient::NotifyEndOfBitstreamBuffer(
int32_t bitstream_buffer_id) {
if (decoder_deleted())
return;
// TODO(fischman): this test currently relies on this notification to make
// forward progress during a Reset(). But the VDA::Reset() API doesn't
// guarantee this, so stop relying on it (and remove the notifications from
// VaapiVideoDecodeAccelerator::FinishReset()).
++num_done_bitstream_buffers_;
--outstanding_decodes_;
// Flush decoder after all BitstreamBuffers are processed.
if (encoded_data_next_pos_to_decode_ == encoded_data_.size()) {
// TODO(owenlin): We should not have to check the number of
// |outstanding_decodes_|. |decoder_| should be able to accept Flush()
// before it's done with outstanding decodes. (crbug.com/528183)
if (outstanding_decodes_ == 0) {
decoder_->Flush();
SetState(CS_FLUSHING);
}
} else if (decode_calls_per_second_ == 0) {
DecodeNextFragment();
}
}
void GLRenderingVDAClient::NotifyFlushDone() {
if (decoder_deleted())
return;
SetState(CS_FLUSHED);
--remaining_play_throughs_;
DCHECK_GE(remaining_play_throughs_, 0);
if (decoder_deleted())
return;
decoder_->Reset();
SetState(CS_RESETTING);
}
void GLRenderingVDAClient::NotifyResetDone() {
if (decoder_deleted())
return;
if (reset_after_frame_num_ == MID_STREAM_RESET) {
reset_after_frame_num_ = END_OF_STREAM_RESET;
DecodeNextFragment();
return;
} else if (reset_after_frame_num_ == START_OF_STREAM_RESET) {
reset_after_frame_num_ = END_OF_STREAM_RESET;
for (int i = 0; i < num_in_flight_decodes_; ++i)
DecodeNextFragment();
return;
}
if (remaining_play_throughs_) {
encoded_data_next_pos_to_decode_ = 0;
FinishInitialization();
return;
}
rendering_helper_->Flush(window_id_);
if (pending_textures_.empty()) {
SetState(CS_RESET);
DeleteDecoder();
}
}
void GLRenderingVDAClient::NotifyError(VideoDecodeAccelerator::Error error) {
SetState(CS_ERROR);
}
void GLRenderingVDAClient::OutputFrameDeliveryTimes(base::File* output) {
std::string s = base::StringPrintf("frame count: %" PRIuS "\n",
frame_delivery_times_.size());
output->WriteAtCurrentPos(s.data(), s.length());
base::TimeTicks t0 = initialize_done_ticks_;
for (size_t i = 0; i < frame_delivery_times_.size(); ++i) {
s = base::StringPrintf("frame %04" PRIuS ": %" PRId64 " us\n", i,
(frame_delivery_times_[i] - t0).InMicroseconds());
t0 = frame_delivery_times_[i];
output->WriteAtCurrentPos(s.data(), s.length());
}
}
static bool LookingAtNAL(const std::string& encoded, size_t pos) {
return encoded[pos] == 0 && encoded[pos + 1] == 0 && encoded[pos + 2] == 0 &&
encoded[pos + 3] == 1;
}
void GLRenderingVDAClient::SetState(ClientState new_state) {
note_->Notify(new_state);
state_ = new_state;
if (!remaining_play_throughs_ && new_state == delete_decoder_state_) {
LOG_ASSERT(!decoder_deleted());
DeleteDecoder();
}
}
void GLRenderingVDAClient::FinishInitialization() {
SetState(CS_INITIALIZED);
initialize_done_ticks_ = base::TimeTicks::Now();
if (reset_after_frame_num_ == START_OF_STREAM_RESET) {
reset_after_frame_num_ = MID_STREAM_RESET;
decoder_->Reset();
return;
}
for (int i = 0; i < num_in_flight_decodes_; ++i)
DecodeNextFragment();
DCHECK_EQ(outstanding_decodes_, num_in_flight_decodes_);
}
void GLRenderingVDAClient::DeleteDecoder() {
if (decoder_deleted())
return;
weak_vda_ptr_factory_->InvalidateWeakPtrs();
decoder_.reset();
base::STLClearObject(&encoded_data_);
active_textures_.clear();
// Set state to CS_DESTROYED after decoder is deleted.
SetState(CS_DESTROYED);
}
std::string GLRenderingVDAClient::GetBytesForFirstFragment(size_t start_pos,
size_t* end_pos) {
if (profile_ < H264PROFILE_MAX) {
*end_pos = start_pos;
while (*end_pos + 4 < encoded_data_.size()) {
if ((encoded_data_[*end_pos + 4] & 0x1f) == 0x7) // SPS start frame
return GetBytesForNextFragment(*end_pos, end_pos);
GetBytesForNextNALU(*end_pos, end_pos);
num_skipped_fragments_++;
}
*end_pos = start_pos;
return std::string();
}
DCHECK_LE(profile_, VP9PROFILE_MAX);
return GetBytesForNextFragment(start_pos, end_pos);
}
std::string GLRenderingVDAClient::GetBytesForNextFragment(size_t start_pos,
size_t* end_pos) {
if (profile_ < H264PROFILE_MAX) {
*end_pos = start_pos;
GetBytesForNextNALU(*end_pos, end_pos);
if (start_pos != *end_pos) {
num_queued_fragments_++;
}
return encoded_data_.substr(start_pos, *end_pos - start_pos);
}
DCHECK_LE(profile_, VP9PROFILE_MAX);
return GetBytesForNextFrame(start_pos, end_pos);
}
void GLRenderingVDAClient::GetBytesForNextNALU(size_t start_pos,
size_t* end_pos) {
*end_pos = start_pos;
if (*end_pos + 4 > encoded_data_.size())
return;
LOG_ASSERT(LookingAtNAL(encoded_data_, start_pos));
*end_pos += 4;
while (*end_pos + 4 <= encoded_data_.size() &&
!LookingAtNAL(encoded_data_, *end_pos)) {
++*end_pos;
}
if (*end_pos + 3 >= encoded_data_.size())
*end_pos = encoded_data_.size();
}
std::string GLRenderingVDAClient::GetBytesForNextFrame(size_t start_pos,
size_t* end_pos) {
// Helpful description: http://wiki.multimedia.cx/index.php?title=IVF
std::string bytes;
if (start_pos == 0)
start_pos = 32; // Skip IVF header.
*end_pos = start_pos;
uint32_t frame_size = *reinterpret_cast<uint32_t*>(&encoded_data_[*end_pos]);
*end_pos += 12; // Skip frame header.
bytes.append(encoded_data_.substr(*end_pos, frame_size));
*end_pos += frame_size;
num_queued_fragments_++;
return bytes;
}
static bool FragmentHasConfigInfo(const uint8_t* data,
size_t size,
VideoCodecProfile profile) {
if (profile >= H264PROFILE_MIN && profile <= H264PROFILE_MAX) {