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/*
* Copyright (c) 2013 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/fake_decoder.h"
#include <string.h>
#include <memory>
#include "api/scoped_refptr.h"
#include "api/video/i420_buffer.h"
#include "api/video/video_frame.h"
#include "api/video/video_frame_buffer.h"
#include "api/video/video_rotation.h"
#include "modules/video_coding/include/video_error_codes.h"
#include "rtc_base/checks.h"
#include "rtc_base/task_queue.h"
#include "rtc_base/time_utils.h"
namespace webrtc {
namespace test {
FakeDecoder::FakeDecoder() : FakeDecoder(nullptr) {}
FakeDecoder::FakeDecoder(TaskQueueFactory* task_queue_factory)
: callback_(nullptr),
width_(kDefaultWidth),
height_(kDefaultHeight),
task_queue_factory_(task_queue_factory),
decode_delay_ms_(0) {}
bool FakeDecoder::Configure(const Settings& settings) {
return true;
}
int32_t FakeDecoder::Decode(const EncodedImage& input,
int64_t render_time_ms) {
if (input._encodedWidth > 0 && input._encodedHeight > 0) {
width_ = input._encodedWidth;
height_ = input._encodedHeight;
}
rtc::scoped_refptr<I420Buffer> buffer = I420Buffer::Create(width_, height_);
I420Buffer::SetBlack(buffer.get());
VideoFrame frame = VideoFrame::Builder()
.set_video_frame_buffer(buffer)
.set_rotation(webrtc::kVideoRotation_0)
.set_timestamp_ms(render_time_ms)
.build();
frame.set_timestamp(input.RtpTimestamp());
frame.set_ntp_time_ms(input.ntp_time_ms_);
if (decode_delay_ms_ == 0 || !task_queue_) {
callback_->Decoded(frame);
} else {
task_queue_->PostDelayedHighPrecisionTask(
[frame, this]() {
VideoFrame copy = frame;
callback_->Decoded(copy);
},
TimeDelta::Millis(decode_delay_ms_));
}
return WEBRTC_VIDEO_CODEC_OK;
}
void FakeDecoder::SetDelayedDecoding(int decode_delay_ms) {
RTC_CHECK(task_queue_factory_);
if (!task_queue_) {
task_queue_ = task_queue_factory_->CreateTaskQueue(
"fake_decoder", TaskQueueFactory::Priority::NORMAL);
}
decode_delay_ms_ = decode_delay_ms;
}
int32_t FakeDecoder::RegisterDecodeCompleteCallback(
DecodedImageCallback* callback) {
callback_ = callback;
return WEBRTC_VIDEO_CODEC_OK;
}
int32_t FakeDecoder::Release() {
return WEBRTC_VIDEO_CODEC_OK;
}
const char* FakeDecoder::kImplementationName = "fake_decoder";
VideoDecoder::DecoderInfo FakeDecoder::GetDecoderInfo() const {
DecoderInfo info;
info.implementation_name = kImplementationName;
info.is_hardware_accelerated = true;
return info;
}
const char* FakeDecoder::ImplementationName() const {
return kImplementationName;
}
int32_t FakeH264Decoder::Decode(const EncodedImage& input,
int64_t render_time_ms) {
uint8_t value = 0;
for (size_t i = 0; i < input.size(); ++i) {
uint8_t kStartCode[] = {0, 0, 0, 1};
if (i < input.size() - sizeof(kStartCode) &&
!memcmp(&input.data()[i], kStartCode, sizeof(kStartCode))) {
i += sizeof(kStartCode) + 1; // Skip start code and NAL header.
}
if (input.data()[i] != value) {
RTC_CHECK_EQ(value, input.data()[i])
<< "Bitstream mismatch between sender and receiver.";
return -1;
}
++value;
}
return FakeDecoder::Decode(input, render_time_ms);
}
} // namespace test
} // namespace webrtc
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