chromium/third_party/webrtc/test/pc/e2e/analyzer/video/single_process_encoded_image_data_injector.h

/*
 *  Copyright (c) 2019 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.
 */

#ifndef TEST_PC_E2E_ANALYZER_VIDEO_SINGLE_PROCESS_ENCODED_IMAGE_DATA_INJECTOR_H_
#define TEST_PC_E2E_ANALYZER_VIDEO_SINGLE_PROCESS_ENCODED_IMAGE_DATA_INJECTOR_H_

#include <cstdint>
#include <map>
#include <memory>
#include <utility>
#include <vector>

#include "api/video/encoded_image.h"
#include "rtc_base/synchronization/mutex.h"
#include "test/pc/e2e/analyzer/video/encoded_image_data_injector.h"

namespace webrtc {
namespace webrtc_pc_e2e {

// Based on assumption that all call participants are in the same OS process
// and uses same QualityAnalyzingVideoContext to obtain
// EncodedImageDataInjector.
//
// To inject frame id and discard flag into EncodedImage injector uses last 3rd
// and 2nd bytes of EncodedImage payload. Then it uses last byte for frame
// sub id, that is required to distinguish different spatial layers. The origin
// data from these 3 bytes will be stored inside injector's internal storage and
// then will be restored during extraction phase.
//
// This injector won't add any extra overhead into EncodedImage payload and
// support frames with any size of payload. Also assumes that every EncodedImage
// payload size is greater or equals to 3 bytes
//
// This injector doesn't support video frames/encoded images without frame ID.
class SingleProcessEncodedImageDataInjector
    : public EncodedImageDataPropagator { … };

}  // namespace webrtc_pc_e2e
}  // namespace webrtc

#endif  // TEST_PC_E2E_ANALYZER_VIDEO_SINGLE_PROCESS_ENCODED_IMAGE_DATA_INJECTOR_H_