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/*
* Copyright 2024 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 "common_video/corruption_detection_converters.h"
#include <optional>
#include "common_video/corruption_detection_message.h"
#include "common_video/frame_instrumentation_data.h"
#include "rtc_base/checks.h"
namespace webrtc {
namespace {
int GetSequenceIndexForMessage(int sequence_index,
bool communicate_upper_bits) {
return communicate_upper_bits ? (sequence_index >> 7)
: (sequence_index & 0b0111'1111);
}
} // namespace
std::optional<CorruptionDetectionMessage>
ConvertFrameInstrumentationDataToCorruptionDetectionMessage(
const FrameInstrumentationData& data) {
if (data.sequence_index < 0 || data.sequence_index > 0b0011'1111'1111'1111) {
return std::nullopt;
}
// Frame instrumentation data must have sample values.
if (data.sample_values.empty()) {
return std::nullopt;
}
return CorruptionDetectionMessage::Builder()
.WithSequenceIndex(GetSequenceIndexForMessage(
data.sequence_index, data.communicate_upper_bits))
.WithInterpretSequenceIndexAsMostSignificantBits(
data.communicate_upper_bits)
.WithStdDev(data.std_dev)
.WithLumaErrorThreshold(data.luma_error_threshold)
.WithChromaErrorThreshold(data.chroma_error_threshold)
.WithSampleValues(data.sample_values)
.Build();
}
std::optional<CorruptionDetectionMessage>
ConvertFrameInstrumentationSyncDataToCorruptionDetectionMessage(
const FrameInstrumentationSyncData& data) {
RTC_DCHECK(data.communicate_upper_bits)
<< "FrameInstrumentationSyncData data must always send the upper bits.";
if (data.sequence_index < 0 || data.sequence_index > 0b0011'1111'1111'1111) {
return std::nullopt;
}
return CorruptionDetectionMessage::Builder()
.WithSequenceIndex(GetSequenceIndexForMessage(
data.sequence_index, data.communicate_upper_bits))
.WithInterpretSequenceIndexAsMostSignificantBits(true)
.Build();
}
} // namespace webrtc