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/*
* 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.
*/
#include "modules/audio_coding/neteq/tools/initial_packet_inserter_neteq_input.h"
#include <limits>
#include <memory>
#include <utility>
#include "rtc_base/checks.h"
namespace webrtc {
namespace test {
InitialPacketInserterNetEqInput::InitialPacketInserterNetEqInput(
std::unique_ptr<NetEqInput> source,
int number_of_initial_packets,
int sample_rate_hz)
: source_(std::move(source)),
packets_to_insert_(number_of_initial_packets),
sample_rate_hz_(sample_rate_hz) {}
absl::optional<int64_t> InitialPacketInserterNetEqInput::NextPacketTime()
const {
return source_->NextPacketTime();
}
absl::optional<int64_t> InitialPacketInserterNetEqInput::NextOutputEventTime()
const {
return source_->NextOutputEventTime();
}
absl::optional<NetEqInput::SetMinimumDelayInfo>
InitialPacketInserterNetEqInput::NextSetMinimumDelayInfo() const {
return source_->NextSetMinimumDelayInfo();
}
std::unique_ptr<InitialPacketInserterNetEqInput::PacketData>
InitialPacketInserterNetEqInput::PopPacket() {
if (!first_packet_) {
first_packet_ = source_->PopPacket();
if (!first_packet_) {
// The source has no packets, so we should not insert any dummy packets.
packets_to_insert_ = 0;
}
}
if (packets_to_insert_ > 0) {
RTC_CHECK(first_packet_);
auto dummy_packet = std::unique_ptr<PacketData>(new PacketData());
dummy_packet->header = first_packet_->header;
dummy_packet->payload = rtc::Buffer(first_packet_->payload.data(),
first_packet_->payload.size());
dummy_packet->time_ms = first_packet_->time_ms;
dummy_packet->header.sequenceNumber -= packets_to_insert_;
// This assumes 20ms per packet.
dummy_packet->header.timestamp -=
20 * sample_rate_hz_ * packets_to_insert_ / 1000;
packets_to_insert_--;
return dummy_packet;
}
return source_->PopPacket();
}
void InitialPacketInserterNetEqInput::AdvanceSetMinimumDelay() {
source_->AdvanceSetMinimumDelay();
}
void InitialPacketInserterNetEqInput::AdvanceOutputEvent() {
source_->AdvanceOutputEvent();
}
bool InitialPacketInserterNetEqInput::ended() const {
return source_->ended();
}
absl::optional<RTPHeader> InitialPacketInserterNetEqInput::NextHeader() const {
return source_->NextHeader();
}
} // namespace test
} // namespace webrtc
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