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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/video/fake_video_encode_accelerator.h"
#include "base/bind.h"
#include "base/check.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/task/sequenced_task_runner.h"
#include "media/base/media_log.h"
#include "media/base/video_frame.h"
namespace media {
static const unsigned int kMinimumInputCount = 1;
FakeVideoEncodeAccelerator::FrameToEncode::FrameToEncode() = default;
FakeVideoEncodeAccelerator::FrameToEncode::FrameToEncode(
const FakeVideoEncodeAccelerator::FrameToEncode&) = default;
FakeVideoEncodeAccelerator::FrameToEncode::~FrameToEncode() = default;
FakeVideoEncodeAccelerator::FakeVideoEncodeAccelerator(
const scoped_refptr<base::SequencedTaskRunner>& task_runner)
: task_runner_(task_runner),
will_initialization_succeed_(true),
will_encoding_succeed_(true),
client_(nullptr),
next_frame_is_first_frame_(true) {}
FakeVideoEncodeAccelerator::~FakeVideoEncodeAccelerator() {
weak_this_factory_.InvalidateWeakPtrs();
}
VideoEncodeAccelerator::SupportedProfiles
FakeVideoEncodeAccelerator::GetSupportedProfiles() {
SupportedProfiles profiles;
SupportedProfile profile;
profile.max_resolution.SetSize(1920, 1088);
profile.max_framerate_numerator = 30;
profile.max_framerate_denominator = 1;
profile.rate_control_modes = media::VideoEncodeAccelerator::kConstantMode;
profile.profile = media::H264PROFILE_MAIN;
profiles.push_back(profile);
profile.profile = media::VP8PROFILE_ANY;
profiles.push_back(profile);
return profiles;
}
bool FakeVideoEncodeAccelerator::Initialize(
const Config& config,
Client* client,
std::unique_ptr<MediaLog> media_log) {
if (!will_initialization_succeed_) {
return false;
}
if (config.output_profile == VIDEO_CODEC_PROFILE_UNKNOWN ||
config.output_profile > VIDEO_CODEC_PROFILE_MAX) {
return false;
}
client_ = client;
task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&FakeVideoEncodeAccelerator::DoRequireBitstreamBuffers,
weak_this_factory_.GetWeakPtr(), kMinimumInputCount,
config.input_visible_size, kMinimumOutputBufferSize));
return true;
}
void FakeVideoEncodeAccelerator::Encode(scoped_refptr<VideoFrame> frame,
bool force_keyframe) {
DCHECK(client_);
FrameToEncode encode;
encode.frame = frame;
encode.force_keyframe = force_keyframe;
queued_frames_.push(encode);
EncodeTask();
}
void FakeVideoEncodeAccelerator::UseOutputBitstreamBuffer(
BitstreamBuffer buffer) {
available_buffers_.push_back(std::move(buffer));
EncodeTask();
}
void FakeVideoEncodeAccelerator::RequestEncodingParametersChange(
const Bitrate& bitrate,
uint32_t framerate) {
// Reject bitrate mode changes.
if (stored_bitrates_.empty() ||
stored_bitrates_.back().mode() == bitrate.mode()) {
stored_bitrates_.push_back(bitrate);
}
}
void FakeVideoEncodeAccelerator::RequestEncodingParametersChange(
const VideoBitrateAllocation& bitrate,
uint32_t framerate) {
stored_bitrate_allocations_.push_back(bitrate);
}
void FakeVideoEncodeAccelerator::Destroy() {
delete this;
}
void FakeVideoEncodeAccelerator::SetWillInitializationSucceed(
bool will_initialization_succeed) {
will_initialization_succeed_ = will_initialization_succeed;
}
void FakeVideoEncodeAccelerator::SetWillEncodingSucceed(
bool will_encoding_succeed) {
will_encoding_succeed_ = will_encoding_succeed;
}
void FakeVideoEncodeAccelerator::DoRequireBitstreamBuffers(
unsigned int input_count,
const gfx::Size& input_coded_size,
size_t output_buffer_size) const {
client_->RequireBitstreamBuffers(input_count, input_coded_size,
output_buffer_size);
}
void FakeVideoEncodeAccelerator::EncodeTask() {
while (!queued_frames_.empty() && !available_buffers_.empty()) {
FrameToEncode frame_to_encode = queued_frames_.front();
BitstreamBuffer buffer = std::move(available_buffers_.front());
available_buffers_.pop_front();
queued_frames_.pop();
if (next_frame_is_first_frame_) {
frame_to_encode.force_keyframe = true;
next_frame_is_first_frame_ = false;
}
task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&FakeVideoEncodeAccelerator::DoBitstreamBufferReady,
weak_this_factory_.GetWeakPtr(), std::move(buffer),
frame_to_encode));
}
}
void FakeVideoEncodeAccelerator::DoBitstreamBufferReady(
BitstreamBuffer buffer,
FrameToEncode frame_to_encode) const {
if (!will_encoding_succeed_) {
client_->NotifyError(VideoEncodeAccelerator::kPlatformFailureError);
return;
}
BitstreamBufferMetadata metadata(kMinimumOutputBufferSize,
frame_to_encode.force_keyframe,
frame_to_encode.frame->timestamp());
if (!encoding_callback_.is_null())
metadata = encoding_callback_.Run(buffer, frame_to_encode.force_keyframe,
frame_to_encode.frame);
client_->BitstreamBufferReady(buffer.id(), metadata);
}
bool FakeVideoEncodeAccelerator::IsGpuFrameResizeSupported() {
return resize_supported_;
}
} // namespace media
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