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182c7dbec62ac95013ab5fe156465b7b4787e4c0
crossdesk/src/rtp/rtp_codec.cpp
dijunkun 182c7dbec6 Finish AV1 rtp packetizer
2024-04-28 16:13:37 +08:00

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#include "rtp_codec.h"
#include <chrono>
#include "log.h"
#include "obu_parser.h"
#define RTP_VERSION 2
#define NALU 1
#define FU_A 28
#define FU_B 29
constexpr int kObuTypeSequenceHeader = 1;
RtpCodec ::RtpCodec(RtpPacket::PAYLOAD_TYPE payload_type)
: version_(RTP_VERSION),
has_padding_(false),
has_extension_(false),
payload_type_(payload_type),
sequence_number_(0) {
fec_encoder_.Init();
}
RtpCodec ::~RtpCodec() {
if (extension_data_) {
delete extension_data_;
extension_data_ = nullptr;
}
// if (rtp_packet_) {
// delete rtp_packet_;
// rtp_packet_ = nullptr;
// }
}
void RtpCodec::Encode(uint8_t* buffer, size_t size,
std::vector<RtpPacket>& packets) {
if (RtpPacket::PAYLOAD_TYPE::H264 == payload_type_) {
if (fec_enable_ && IsKeyFrame((const uint8_t*)buffer, size)) {
uint8_t** fec_packets = fec_encoder_.Encode((const char*)buffer, size);
if (nullptr == fec_packets) {
LOG_ERROR("Invalid fec_packets");
return;
}
unsigned int num_of_total_packets = 0;
unsigned int num_of_source_packets = 0;
unsigned int last_packet_size = 0;
fec_encoder_.GetFecPacketsParams(size, num_of_total_packets,
num_of_source_packets, last_packet_size);
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
for (unsigned int index = 0; index < num_of_total_packets; index++) {
RtpPacket rtp_packet;
if (index < num_of_source_packets) {
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == num_of_source_packets - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE::H264_FEC_SOURCE);
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
RtpPacket::FU_INDICATOR fu_indicator;
fu_indicator.forbidden_bit = 0;
fu_indicator.nal_reference_idc = 0;
fu_indicator.nal_unit_type = FU_A;
RtpPacket::FU_HEADER fu_header;
fu_header.start = index == 0 ? 1 : 0;
fu_header.end = index == num_of_source_packets - 1 ? 1 : 0;
fu_header.remain_bit = 0;
fu_header.nal_unit_type = FU_A;
rtp_packet.SetFuIndicator(fu_indicator);
rtp_packet.SetFuHeader(fu_header);
if (index == num_of_source_packets - 1) {
if (last_packet_size > 0) {
rtp_packet.EncodeH264FecSource(fec_packets[index],
last_packet_size, index,
num_of_source_packets);
} else {
rtp_packet.EncodeH264FecSource(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
} else {
rtp_packet.EncodeH264FecSource(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
} else if (index >= num_of_source_packets &&
index < num_of_total_packets) {
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == num_of_total_packets - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE::H264_FEC_REPAIR);
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
rtp_packet.EncodeH264FecRepair(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
packets.emplace_back(rtp_packet);
// if (index < num_of_source_packets) {
// rtp_packet.EncodeH264Fua(fec_packets[index], MAX_NALU_LEN);
// packets.emplace_back(rtp_packet);
// }
}
fec_encoder_.ReleaseFecPackets(fec_packets, size);
return;
}
if (size <= MAX_NALU_LEN) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(1);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
RtpPacket::FU_INDICATOR fu_indicator;
fu_indicator.forbidden_bit = 0;
fu_indicator.nal_reference_idc = 1;
fu_indicator.nal_unit_type = NALU;
rtp_packet.SetFuIndicator(fu_indicator);
rtp_packet.EncodeH264Nalu(buffer, size);
packets.emplace_back(rtp_packet);
} else {
size_t last_packet_size = size % MAX_NALU_LEN;
size_t packet_num = size / MAX_NALU_LEN + (last_packet_size ? 1 : 0);
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
for (size_t index = 0; index < packet_num; index++) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == packet_num - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
RtpPacket::FU_INDICATOR fu_indicator;
fu_indicator.forbidden_bit = 0;
fu_indicator.nal_reference_idc = 0;
fu_indicator.nal_unit_type = FU_A;
RtpPacket::FU_HEADER fu_header;
fu_header.start = index == 0 ? 1 : 0;
fu_header.end = index == packet_num - 1 ? 1 : 0;
fu_header.remain_bit = 0;
fu_header.nal_unit_type = FU_A;
rtp_packet.SetFuIndicator(fu_indicator);
rtp_packet.SetFuHeader(fu_header);
if (index == packet_num - 1 && last_packet_size > 0) {
rtp_packet.EncodeH264Fua(buffer + index * MAX_NALU_LEN,
last_packet_size);
} else {
rtp_packet.EncodeH264Fua(buffer + index * MAX_NALU_LEN, MAX_NALU_LEN);
}
packets.emplace_back(rtp_packet);
}
}
} else if (RtpPacket::PAYLOAD_TYPE::AV1 == payload_type_) {
std::vector<Obu> obus = ParseObus(buffer, size);
LOG_ERROR("Total size = [{}]", size);
for (int i = 0; i < obus.size(); i++) {
LOG_ERROR("[{}] Obu size = [{}], Obu type [{}]", i, obus[i].size_,
ObuTypeToString((OBU_TYPE)ObuType(obus[i].header_)));
if (obus[i].size_ <= MAX_NALU_LEN) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(1);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
timestamp_ = std::chrono::high_resolution_clock::now()
.time_since_epoch()
.count();
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
rtp_packet.SetAv1AggrHeader(0, 0, 1, 0);
rtp_packet.EncodeAv1(obus[i].payload_, obus[i].payload_size_);
packets.emplace_back(rtp_packet);
} else {
size_t last_packet_size = obus[i].payload_size_ % MAX_NALU_LEN;
size_t packet_num =
obus[i].payload_size_ / MAX_NALU_LEN + (last_packet_size ? 1 : 0);
timestamp_ = std::chrono::high_resolution_clock::now()
.time_since_epoch()
.count();
for (size_t index = 0; index < packet_num; index++) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == packet_num - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
int z = index != 0 ? 1 : 0;
int y = index != packet_num - 1 ? 1 : 0;
int w = 1;
int n = 0;
rtp_packet.SetAv1AggrHeader(z, y, w, n);
if (index == packet_num - 1 && last_packet_size > 0) {
rtp_packet.EncodeAv1(obus[i].payload_ + index * MAX_NALU_LEN,
last_packet_size);
} else {
rtp_packet.EncodeAv1(obus[i].payload_ + index * MAX_NALU_LEN,
MAX_NALU_LEN);
}
packets.emplace_back(rtp_packet);
}
}
}
} else if (RtpPacket::PAYLOAD_TYPE::OPUS == payload_type_) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(1);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
rtp_packet.Encode(buffer, size);
packets.emplace_back(rtp_packet);
} else if (RtpPacket::PAYLOAD_TYPE::DATA == payload_type_) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(1);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
rtp_packet.Encode(buffer, size);
packets.emplace_back(rtp_packet);
}
}
void RtpCodec::Encode(VideoFrameType frame_type, uint8_t* buffer, size_t size,
std::vector<RtpPacket>& packets) {
if (RtpPacket::PAYLOAD_TYPE::H264 == payload_type_) {
if (fec_enable_ && IsKeyFrame((const uint8_t*)buffer, size)) {
uint8_t** fec_packets = fec_encoder_.Encode((const char*)buffer, size);
if (nullptr == fec_packets) {
LOG_ERROR("Invalid fec_packets");
return;
}
unsigned int num_of_total_packets = 0;
unsigned int num_of_source_packets = 0;
unsigned int last_packet_size = 0;
fec_encoder_.GetFecPacketsParams(size, num_of_total_packets,
num_of_source_packets, last_packet_size);
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
for (unsigned int index = 0; index < num_of_total_packets; index++) {
RtpPacket rtp_packet;
if (index < num_of_source_packets) {
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == num_of_source_packets - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE::H264_FEC_SOURCE);
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
RtpPacket::FU_INDICATOR fu_indicator;
fu_indicator.forbidden_bit = 0;
fu_indicator.nal_reference_idc = 0;
fu_indicator.nal_unit_type = FU_A;
RtpPacket::FU_HEADER fu_header;
fu_header.start = index == 0 ? 1 : 0;
fu_header.end = index == num_of_source_packets - 1 ? 1 : 0;
fu_header.remain_bit = 0;
fu_header.nal_unit_type = FU_A;
rtp_packet.SetFuIndicator(fu_indicator);
rtp_packet.SetFuHeader(fu_header);
if (index == num_of_source_packets - 1) {
if (last_packet_size > 0) {
rtp_packet.EncodeH264FecSource(fec_packets[index],
last_packet_size, index,
num_of_source_packets);
} else {
rtp_packet.EncodeH264FecSource(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
} else {
rtp_packet.EncodeH264FecSource(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
} else if (index >= num_of_source_packets &&
index < num_of_total_packets) {
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == num_of_total_packets - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE::H264_FEC_REPAIR);
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
rtp_packet.EncodeH264FecRepair(fec_packets[index], MAX_NALU_LEN,
index, num_of_source_packets);
}
packets.emplace_back(rtp_packet);
// if (index < num_of_source_packets) {
// rtp_packet.EncodeH264Fua(fec_packets[index], MAX_NALU_LEN);
// packets.emplace_back(rtp_packet);
// }
}
fec_encoder_.ReleaseFecPackets(fec_packets, size);
return;
}
if (size <= MAX_NALU_LEN) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(1);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
RtpPacket::FU_INDICATOR fu_indicator;
fu_indicator.forbidden_bit = 0;
fu_indicator.nal_reference_idc = 1;
fu_indicator.nal_unit_type = NALU;
rtp_packet.SetFuIndicator(fu_indicator);
rtp_packet.EncodeH264Nalu(buffer, size);
packets.emplace_back(rtp_packet);
} else {
size_t last_packet_size = size % MAX_NALU_LEN;
size_t packet_num = size / MAX_NALU_LEN + (last_packet_size ? 1 : 0);
timestamp_ =
std::chrono::high_resolution_clock::now().time_since_epoch().count();
for (size_t index = 0; index < packet_num; index++) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == packet_num - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
RtpPacket::FU_INDICATOR fu_indicator;
fu_indicator.forbidden_bit = 0;
fu_indicator.nal_reference_idc = 0;
fu_indicator.nal_unit_type = FU_A;
RtpPacket::FU_HEADER fu_header;
fu_header.start = index == 0 ? 1 : 0;
fu_header.end = index == packet_num - 1 ? 1 : 0;
fu_header.remain_bit = 0;
fu_header.nal_unit_type = FU_A;
rtp_packet.SetFuIndicator(fu_indicator);
rtp_packet.SetFuHeader(fu_header);
if (index == packet_num - 1 && last_packet_size > 0) {
rtp_packet.EncodeH264Fua(buffer + index * MAX_NALU_LEN,
last_packet_size);
} else {
rtp_packet.EncodeH264Fua(buffer + index * MAX_NALU_LEN, MAX_NALU_LEN);
}
packets.emplace_back(rtp_packet);
}
}
} else if (RtpPacket::PAYLOAD_TYPE::AV1 == payload_type_) {
std::vector<Obu> obus = ParseObus(buffer, size);
LOG_ERROR("Total size = [{}]", size);
for (int i = 0; i < obus.size(); i++) {
LOG_ERROR("[{}] Obu size = [{}], Obu type [{}]", i, obus[i].size_,
ObuTypeToString((OBU_TYPE)ObuType(obus[i].header_)));
if (obus[i].size_ <= MAX_NALU_LEN) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(1);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
timestamp_ = std::chrono::high_resolution_clock::now()
.time_since_epoch()
.count();
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
rtp_packet.SetAv1AggrHeader(0, 0, 1, 0);
rtp_packet.EncodeAv1(obus[i].payload_, obus[i].payload_size_);
packets.emplace_back(rtp_packet);
} else {
size_t last_packet_size = obus[i].payload_size_ % MAX_NALU_LEN;
size_t packet_num =
obus[i].payload_size_ / MAX_NALU_LEN + (last_packet_size ? 1 : 0);
timestamp_ = std::chrono::high_resolution_clock::now()
.time_since_epoch()
.count();
for (size_t index = 0; index < packet_num; index++) {
RtpPacket rtp_packet;
rtp_packet.SetVerion(version_);
rtp_packet.SetHasPadding(has_padding_);
rtp_packet.SetHasExtension(has_extension_);
rtp_packet.SetMarker(index == packet_num - 1 ? 1 : 0);
rtp_packet.SetPayloadType(RtpPacket::PAYLOAD_TYPE(payload_type_));
rtp_packet.SetSequenceNumber(sequence_number_++);
rtp_packet.SetTimestamp(timestamp_);
rtp_packet.SetSsrc(ssrc_);
if (!csrcs_.empty()) {
rtp_packet.SetCsrcs(csrcs_);
}
if (has_extension_) {
rtp_packet.SetExtensionProfile(extension_profile_);
rtp_packet.SetExtensionData(extension_data_, extension_len_);
}
int z = index != 0 ? 1 : 0;
int y = index != packet_num - 1 ? 1 : 0;
int w = 1;
int n = (frame_type == VideoFrameType::kVideoFrameKey) &&
(ObuType(obus[i].header_) == kObuTypeSequenceHeader)
? 1
: 0;
rtp_packet.SetAv1AggrHeader(z, y, w, n);
if (index == packet_num - 1 && last_packet_size > 0) {
rtp_packet.EncodeAv1(obus[i].payload_ + index * MAX_NALU_LEN,
last_packet_size);
} else {
rtp_packet.EncodeAv1(obus[i].payload_ + index * MAX_NALU_LEN,
MAX_NALU_LEN);
}
packets.emplace_back(rtp_packet);
}
}
}
}
}
size_t RtpCodec::Decode(RtpPacket& packet, uint8_t* payload) {
// if ((packet.Buffer()[13] >> 6) & 0x01) {
// LOG_ERROR("End bit!!!!!!!!!!!!!!!");
// }
// if ((packet.Buffer()[13] >> 7) & 0x01) {
// LOG_ERROR("Start bit!!!!!!!!!!!!!!!");
// }
auto nal_unit_type = packet.Buffer()[12] & 0x1F;
if (NALU == nal_unit_type) {
LOG_ERROR("Nalu");
return packet.DecodeH264Nalu(payload);
} else if (FU_A == nal_unit_type) {
LOG_ERROR("Fua");
return packet.DecodeH264Fua(payload);
} else {
LOG_ERROR("Default");
return packet.DecodeData(payload);
}
}
bool RtpCodec::IsKeyFrame(const uint8_t* buffer, size_t size) {
if (buffer != nullptr && size != 0 && (*(buffer + 4) & 0x1f) == 0x07) {
return true;
}
return false;
}
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