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/*
* Copyright (c) 2022 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/pc/e2e/analyzer/video/video_dumping.h"
#include <stdio.h>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "absl/strings/string_view.h"
#include "api/test/video/video_frame_writer.h"
#include "api/video/video_frame.h"
#include "rtc_base/logging.h"
#include "system_wrappers/include/clock.h"
#include "test/testsupport/video_frame_writer.h"
namespace webrtc {
namespace webrtc_pc_e2e {
namespace {
class VideoFrameIdsWriter final : public test::VideoFrameWriter {
public:
explicit VideoFrameIdsWriter(absl::string_view file_name)
: file_name_(file_name) {
output_file_ = fopen(file_name_.c_str(), "wb");
RTC_LOG(LS_INFO) << "Writing VideoFrame IDs into " << file_name_;
RTC_CHECK(output_file_ != nullptr)
<< "Failed to open file to dump frame ids for writing: " << file_name_;
}
~VideoFrameIdsWriter() override { Close(); }
bool WriteFrame(const VideoFrame& frame) override {
RTC_CHECK(output_file_ != nullptr) << "Writer is already closed";
int chars_written = fprintf(output_file_, "%d\n", frame.id());
if (chars_written < 2) {
RTC_LOG(LS_ERROR) << "Failed to write frame id to the output file: "
<< file_name_;
return false;
}
return true;
}
void Close() override {
if (output_file_ != nullptr) {
RTC_LOG(LS_INFO) << "Closing file for VideoFrame IDs: " << file_name_;
fclose(output_file_);
output_file_ = nullptr;
}
}
private:
const std::string file_name_;
FILE* output_file_;
};
// Broadcast received frame to multiple underlying frame writers.
class BroadcastingFrameWriter final : public test::VideoFrameWriter {
public:
explicit BroadcastingFrameWriter(
std::vector<std::unique_ptr<test::VideoFrameWriter>> delegates)
: delegates_(std::move(delegates)) {}
~BroadcastingFrameWriter() override { Close(); }
bool WriteFrame(const webrtc::VideoFrame& frame) override {
for (auto& delegate : delegates_) {
if (!delegate->WriteFrame(frame)) {
return false;
}
}
return true;
}
void Close() override {
for (auto& delegate : delegates_) {
delegate->Close();
}
}
private:
std::vector<std::unique_ptr<test::VideoFrameWriter>> delegates_;
};
} // namespace
VideoWriter::VideoWriter(test::VideoFrameWriter* video_writer,
int sampling_modulo)
: video_writer_(video_writer), sampling_modulo_(sampling_modulo) {}
void VideoWriter::OnFrame(const VideoFrame& frame) {
if (frames_counter_++ % sampling_modulo_ != 0) {
return;
}
bool result = video_writer_->WriteFrame(frame);
RTC_CHECK(result) << "Failed to write frame";
}
std::unique_ptr<test::VideoFrameWriter> CreateVideoFrameWithIdsWriter(
std::unique_ptr<test::VideoFrameWriter> video_writer_delegate,
absl::string_view frame_ids_dump_file_name) {
std::vector<std::unique_ptr<test::VideoFrameWriter>> requested_writers;
requested_writers.push_back(std::move(video_writer_delegate));
requested_writers.push_back(
std::make_unique<VideoFrameIdsWriter>(frame_ids_dump_file_name));
return std::make_unique<BroadcastingFrameWriter>(
std::move(requested_writers));
}
} // namespace webrtc_pc_e2e
} // namespace webrtc
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