395 lines
14 KiB
C++
395 lines
14 KiB
C++
|
/*
|
||
|
|
* Copyright (c) 2016 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 "webrtc/call/rtc_event_log_parser.h"
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include <fstream>
|
||
|
|
|
||
|
|
#include "webrtc/base/checks.h"
|
||
|
|
#include "webrtc/base/logging.h"
|
||
|
|
#include "webrtc/call.h"
|
||
|
|
#include "webrtc/call/rtc_event_log.h"
|
||
|
|
#include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h"
|
||
|
|
#include "webrtc/system_wrappers/include/file_wrapper.h"
|
||
|
|
|
||
|
|
namespace webrtc {
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
MediaType GetRuntimeMediaType(rtclog::MediaType media_type) {
|
||
|
|
switch (media_type) {
|
||
|
|
case rtclog::MediaType::ANY:
|
||
|
|
return MediaType::ANY;
|
||
|
|
case rtclog::MediaType::AUDIO:
|
||
|
|
return MediaType::AUDIO;
|
||
|
|
case rtclog::MediaType::VIDEO:
|
||
|
|
return MediaType::VIDEO;
|
||
|
|
case rtclog::MediaType::DATA:
|
||
|
|
return MediaType::DATA;
|
||
|
|
}
|
||
|
|
RTC_NOTREACHED();
|
||
|
|
return MediaType::ANY;
|
||
|
|
}
|
||
|
|
|
||
|
|
RtcpMode GetRuntimeRtcpMode(rtclog::VideoReceiveConfig::RtcpMode rtcp_mode) {
|
||
|
|
switch (rtcp_mode) {
|
||
|
|
case rtclog::VideoReceiveConfig::RTCP_COMPOUND:
|
||
|
|
return RtcpMode::kCompound;
|
||
|
|
case rtclog::VideoReceiveConfig::RTCP_REDUCEDSIZE:
|
||
|
|
return RtcpMode::kReducedSize;
|
||
|
|
}
|
||
|
|
RTC_NOTREACHED();
|
||
|
|
return RtcpMode::kOff;
|
||
|
|
}
|
||
|
|
|
||
|
|
ParsedRtcEventLog::EventType GetRuntimeEventType(
|
||
|
|
rtclog::Event::EventType event_type) {
|
||
|
|
switch (event_type) {
|
||
|
|
case rtclog::Event::UNKNOWN_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::UNKNOWN_EVENT;
|
||
|
|
case rtclog::Event::LOG_START:
|
||
|
|
return ParsedRtcEventLog::EventType::LOG_START;
|
||
|
|
case rtclog::Event::LOG_END:
|
||
|
|
return ParsedRtcEventLog::EventType::LOG_END;
|
||
|
|
case rtclog::Event::RTP_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::RTP_EVENT;
|
||
|
|
case rtclog::Event::RTCP_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::RTCP_EVENT;
|
||
|
|
case rtclog::Event::AUDIO_PLAYOUT_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::AUDIO_PLAYOUT_EVENT;
|
||
|
|
case rtclog::Event::BWE_PACKET_LOSS_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::BWE_PACKET_LOSS_EVENT;
|
||
|
|
case rtclog::Event::BWE_PACKET_DELAY_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::BWE_PACKET_DELAY_EVENT;
|
||
|
|
case rtclog::Event::VIDEO_RECEIVER_CONFIG_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::VIDEO_RECEIVER_CONFIG_EVENT;
|
||
|
|
case rtclog::Event::VIDEO_SENDER_CONFIG_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::VIDEO_SENDER_CONFIG_EVENT;
|
||
|
|
case rtclog::Event::AUDIO_RECEIVER_CONFIG_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::AUDIO_RECEIVER_CONFIG_EVENT;
|
||
|
|
case rtclog::Event::AUDIO_SENDER_CONFIG_EVENT:
|
||
|
|
return ParsedRtcEventLog::EventType::AUDIO_SENDER_CONFIG_EVENT;
|
||
|
|
}
|
||
|
|
RTC_NOTREACHED();
|
||
|
|
return ParsedRtcEventLog::EventType::UNKNOWN_EVENT;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool ParseVarInt(std::FILE* file, uint64_t* varint, size_t* bytes_read) {
|
||
|
|
uint8_t byte;
|
||
|
|
*varint = 0;
|
||
|
|
for (*bytes_read = 0; *bytes_read < 10 && fread(&byte, 1, 1, file) == 1;
|
||
|
|
++(*bytes_read)) {
|
||
|
|
// The most significant bit of each byte is 0 if it is the last byte in
|
||
|
|
// the varint and 1 otherwise. Thus, we take the 7 least significant bits
|
||
|
|
// of each byte and shift them 7 bits for each byte read previously to get
|
||
|
|
// the (unsigned) integer.
|
||
|
|
*varint |= static_cast<uint64_t>(byte & 0x7F) << (7 * *bytes_read);
|
||
|
|
if ((byte & 0x80) == 0) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
bool ParsedRtcEventLog::ParseFile(const std::string& filename) {
|
||
|
|
stream_.clear();
|
||
|
|
const size_t kMaxEventSize = (1u << 16) - 1;
|
||
|
|
char tmp_buffer[kMaxEventSize];
|
||
|
|
|
||
|
|
std::FILE* file = fopen(filename.c_str(), "rb");
|
||
|
|
if (!file) {
|
||
|
|
LOG(LS_WARNING) << "Could not open file for reading.";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
while (1) {
|
||
|
|
// Peek at the next message tag. The tag number is defined as
|
||
|
|
// (fieldnumber << 3) | wire_type. In our case, the field number is
|
||
|
|
// supposed to be 1 and the wire type for an length-delimited field is 2.
|
||
|
|
const uint64_t kExpectedTag = (1 << 3) | 2;
|
||
|
|
uint64_t tag;
|
||
|
|
size_t bytes_read;
|
||
|
|
if (!ParseVarInt(file, &tag, &bytes_read) || tag != kExpectedTag) {
|
||
|
|
fclose(file);
|
||
|
|
if (bytes_read == 0) {
|
||
|
|
return true; // Reached end of file.
|
||
|
|
}
|
||
|
|
LOG(LS_WARNING) << "Missing field tag from beginning of protobuf event.";
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Peek at the length field.
|
||
|
|
uint64_t message_length;
|
||
|
|
if (!ParseVarInt(file, &message_length, &bytes_read)) {
|
||
|
|
LOG(LS_WARNING) << "Missing message length after protobuf field tag.";
|
||
|
|
fclose(file);
|
||
|
|
return false;
|
||
|
|
} else if (message_length > kMaxEventSize) {
|
||
|
|
LOG(LS_WARNING) << "Protobuf message length is too large.";
|
||
|
|
fclose(file);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (fread(tmp_buffer, 1, message_length, file) != message_length) {
|
||
|
|
LOG(LS_WARNING) << "Failed to read protobuf message from file.";
|
||
|
|
fclose(file);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
rtclog::Event event;
|
||
|
|
if (!event.ParseFromArray(tmp_buffer, message_length)) {
|
||
|
|
LOG(LS_WARNING) << "Failed to parse protobuf message.";
|
||
|
|
fclose(file);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
stream_.push_back(event);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
size_t ParsedRtcEventLog::GetNumberOfEvents() const {
|
||
|
|
return stream_.size();
|
||
|
|
}
|
||
|
|
|
||
|
|
int64_t ParsedRtcEventLog::GetTimestamp(size_t index) const {
|
||
|
|
RTC_CHECK_LT(index, GetNumberOfEvents());
|
||
|
|
const rtclog::Event& event = stream_[index];
|
||
|
|
RTC_CHECK(event.has_timestamp_us());
|
||
|
|
return event.timestamp_us();
|
||
|
|
}
|
||
|
|
|
||
|
|
ParsedRtcEventLog::EventType ParsedRtcEventLog::GetEventType(
|
||
|
|
size_t index) const {
|
||
|
|
RTC_CHECK_LT(index, GetNumberOfEvents());
|
||
|
|
const rtclog::Event& event = stream_[index];
|
||
|
|
RTC_CHECK(event.has_type());
|
||
|
|
return GetRuntimeEventType(event.type());
|
||
|
|
}
|
||
|
|
|
||
|
|
// The header must have space for at least IP_PACKET_SIZE bytes.
|
||
|
|
void ParsedRtcEventLog::GetRtpHeader(size_t index,
|
||
|
|
PacketDirection* incoming,
|
||
|
|
MediaType* media_type,
|
||
|
|
uint8_t* header,
|
||
|
|
size_t* header_length,
|
||
|
|
size_t* total_length) const {
|
||
|
|
RTC_CHECK_LT(index, GetNumberOfEvents());
|
||
|
|
const rtclog::Event& event = stream_[index];
|
||
|
|
RTC_CHECK(event.has_type());
|
||
|
|
RTC_CHECK_EQ(event.type(), rtclog::Event::RTP_EVENT);
|
||
|
|
RTC_CHECK(event.has_rtp_packet());
|
||
|
|
const rtclog::RtpPacket& rtp_packet = event.rtp_packet();
|
||
|
|
// Get direction of packet.
|
||
|
|
RTC_CHECK(rtp_packet.has_incoming());
|
||
|
|
if (incoming != nullptr) {
|
||
|
|
*incoming = rtp_packet.incoming() ? kIncomingPacket : kOutgoingPacket;
|
||
|
|
}
|
||
|
|
// Get media type.
|
||
|
|
RTC_CHECK(rtp_packet.has_type());
|
||
|
|
if (media_type != nullptr) {
|
||
|
|
*media_type = GetRuntimeMediaType(rtp_packet.type());
|
||
|
|
}
|
||
|
|
// Get packet length.
|
||
|
|
RTC_CHECK(rtp_packet.has_packet_length());
|
||
|
|
if (total_length != nullptr) {
|
||
|
|
*total_length = rtp_packet.packet_length();
|
||
|
|
}
|
||
|
|
// Get header length.
|
||
|
|
RTC_CHECK(rtp_packet.has_header());
|
||
|
|
if (header_length != nullptr) {
|
||
|
|
*header_length = rtp_packet.header().size();
|
||
|
|
}
|
||
|
|
// Get header contents.
|
||
|
|
if (header != nullptr) {
|
||
|
|
const size_t kMinRtpHeaderSize = 12;
|
||
|
|
RTC_CHECK_GE(rtp_packet.header().size(), kMinRtpHeaderSize);
|
||
|
|
RTC_CHECK_LE(rtp_packet.header().size(),
|
||
|
|
static_cast<size_t>(IP_PACKET_SIZE));
|
||
|
|
memcpy(header, rtp_packet.header().data(), rtp_packet.header().size());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The packet must have space for at least IP_PACKET_SIZE bytes.
|
||
|
|
void ParsedRtcEventLog::GetRtcpPacket(size_t index,
|
||
|
|
PacketDirection* incoming,
|
||
|
|
MediaType* media_type,
|
||
|
|
uint8_t* packet,
|
||
|
|
size_t* length) const {
|
||
|
|
RTC_CHECK_LT(index, GetNumberOfEvents());
|
||
|
|
const rtclog::Event& event = stream_[index];
|
||
|
|
RTC_CHECK(event.has_type());
|
||
|
|
RTC_CHECK_EQ(event.type(), rtclog::Event::RTCP_EVENT);
|
||
|
|
RTC_CHECK(event.has_rtcp_packet());
|
||
|
|
const rtclog::RtcpPacket& rtcp_packet = event.rtcp_packet();
|
||
|
|
// Get direction of packet.
|
||
|
|
RTC_CHECK(rtcp_packet.has_incoming());
|
||
|
|
if (incoming != nullptr) {
|
||
|
|
*incoming = rtcp_packet.incoming() ? kIncomingPacket : kOutgoingPacket;
|
||
|
|
}
|
||
|
|
// Get media type.
|
||
|
|
RTC_CHECK(rtcp_packet.has_type());
|
||
|
|
if (media_type != nullptr) {
|
||
|
|
*media_type = GetRuntimeMediaType(rtcp_packet.type());
|
||
|
|
}
|
||
|
|
// Get packet length.
|
||
|
|
RTC_CHECK(rtcp_packet.has_packet_data());
|
||
|
|
if (length != nullptr) {
|
||
|
|
*length = rtcp_packet.packet_data().size();
|
||
|
|
}
|
||
|
|
// Get packet contents.
|
||
|
|
if (packet != nullptr) {
|
||
|
|
RTC_CHECK_LE(rtcp_packet.packet_data().size(),
|
||
|
|
static_cast<unsigned>(IP_PACKET_SIZE));
|
||
|
|
memcpy(packet, rtcp_packet.packet_data().data(),
|
||
|
|
rtcp_packet.packet_data().size());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ParsedRtcEventLog::GetVideoReceiveConfig(
|
||
|
|
size_t index,
|
||
|
|
VideoReceiveStream::Config* config) const {
|
||
|
|
RTC_CHECK_LT(index, GetNumberOfEvents());
|
||
|
|
const rtclog::Event& event = stream_[index];
|
||
|
|
RTC_CHECK(config != nullptr);
|
||
|
|
RTC_CHECK(event.has_type());
|
||
|
|
RTC_CHECK_EQ(event.type(), rtclog::Event::VIDEO_RECEIVER_CONFIG_EVENT);
|
||
|
|
RTC_CHECK(event.has_video_receiver_config());
|
||
|
|
const rtclog::VideoReceiveConfig& receiver_config =
|
||
|
|
event.video_receiver_config();
|
||
|
|
// Get SSRCs.
|
||
|
|
RTC_CHECK(receiver_config.has_remote_ssrc());
|
||
|
|
config->rtp.remote_ssrc = receiver_config.remote_ssrc();
|
||
|
|
RTC_CHECK(receiver_config.has_local_ssrc());
|
||
|
|
config->rtp.local_ssrc = receiver_config.local_ssrc();
|
||
|
|
// Get RTCP settings.
|
||
|
|
RTC_CHECK(receiver_config.has_rtcp_mode());
|
||
|
|
config->rtp.rtcp_mode = GetRuntimeRtcpMode(receiver_config.rtcp_mode());
|
||
|
|
RTC_CHECK(receiver_config.has_remb());
|
||
|
|
config->rtp.remb = receiver_config.remb();
|
||
|
|
// Get RTX map.
|
||
|
|
config->rtp.rtx.clear();
|
||
|
|
for (int i = 0; i < receiver_config.rtx_map_size(); i++) {
|
||
|
|
const rtclog::RtxMap& map = receiver_config.rtx_map(i);
|
||
|
|
RTC_CHECK(map.has_payload_type());
|
||
|
|
RTC_CHECK(map.has_config());
|
||
|
|
RTC_CHECK(map.config().has_rtx_ssrc());
|
||
|
|
RTC_CHECK(map.config().has_rtx_payload_type());
|
||
|
|
webrtc::VideoReceiveStream::Config::Rtp::Rtx rtx_pair;
|
||
|
|
rtx_pair.ssrc = map.config().rtx_ssrc();
|
||
|
|
rtx_pair.payload_type = map.config().rtx_payload_type();
|
||
|
|
config->rtp.rtx.insert(std::make_pair(map.payload_type(), rtx_pair));
|
||
|
|
}
|
||
|
|
// Get header extensions.
|
||
|
|
config->rtp.extensions.clear();
|
||
|
|
for (int i = 0; i < receiver_config.header_extensions_size(); i++) {
|
||
|
|
RTC_CHECK(receiver_config.header_extensions(i).has_name());
|
||
|
|
RTC_CHECK(receiver_config.header_extensions(i).has_id());
|
||
|
|
const std::string& name = receiver_config.header_extensions(i).name();
|
||
|
|
int id = receiver_config.header_extensions(i).id();
|
||
|
|
config->rtp.extensions.push_back(RtpExtension(name, id));
|
||
|
|
}
|
||
|
|
// Get decoders.
|
||
|
|
config->decoders.clear();
|
||
|
|
for (int i = 0; i < receiver_config.decoders_size(); i++) {
|
||
|
|
RTC_CHECK(receiver_config.decoders(i).has_name());
|
||
|
|
RTC_CHECK(receiver_config.decoders(i).has_payload_type());
|
||
|
|
VideoReceiveStream::Decoder decoder;
|
||
|
|
decoder.payload_name = receiver_config.decoders(i).name();
|
||
|
|
decoder.payload_type = receiver_config.decoders(i).payload_type();
|
||
|
|
config->decoders.push_back(decoder);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ParsedRtcEventLog::GetVideoSendConfig(
|
||
|
|
size_t index,
|
||
|
|
VideoSendStream::Config* config) const {
|
||
|
|
RTC_CHECK_LT(index, GetNumberOfEvents());
|
||
|
|
const rtclog::Event& event = stream_[index];
|
||
|
|
RTC_CHECK(config != nullptr);
|
||
|
|
RTC_CHECK(event.has_type());
|
||
|
|
RTC_CHECK_EQ(event.type(), rtclog::Event::VIDEO_SENDER_CONFIG_EVENT);
|
||
|
|
RTC_CHECK(event.has_video_sender_config());
|
||
|
|
const rtclog::VideoSendConfig& sender_config = event.video_sender_config();
|
||
|
|
// Get SSRCs.
|
||
|
|
config->rtp.ssrcs.clear();
|
||
|
|
for (int i = 0; i < sender_config.ssrcs_size(); i++) {
|
||
|
|
config->rtp.ssrcs.push_back(sender_config.ssrcs(i));
|
||
|
|
}
|
||
|
|
// Get header extensions.
|
||
|
|
config->rtp.extensions.clear();
|
||
|
|
for (int i = 0; i < sender_config.header_extensions_size(); i++) {
|
||
|
|
RTC_CHECK(sender_config.header_extensions(i).has_name());
|
||
|
|
RTC_CHECK(sender_config.header_extensions(i).has_id());
|
||
|
|
const std::string& name = sender_config.header_extensions(i).name();
|
||
|
|
int id = sender_config.header_extensions(i).id();
|
||
|
|
config->rtp.extensions.push_back(RtpExtension(name, id));
|
||
|
|
}
|
||
|
|
// Get RTX settings.
|
||
|
|
config->rtp.rtx.ssrcs.clear();
|
||
|
|
for (int i = 0; i < sender_config.rtx_ssrcs_size(); i++) {
|
||
|
|
config->rtp.rtx.ssrcs.push_back(sender_config.rtx_ssrcs(i));
|
||
|
|
}
|
||
|
|
if (sender_config.rtx_ssrcs_size() > 0) {
|
||
|
|
RTC_CHECK(sender_config.has_rtx_payload_type());
|
||
|
|
config->rtp.rtx.payload_type = sender_config.rtx_payload_type();
|
||
|
|
} else {
|
||
|
|
// Reset RTX payload type default value if no RTX SSRCs are used.
|
||
|
|
config->rtp.rtx.payload_type = -1;
|
||
|
|
}
|
||
|
|
// Get encoder.
|
||
|
|
RTC_CHECK(sender_config.has_encoder());
|
||
|
|
RTC_CHECK(sender_config.encoder().has_name());
|
||
|
|
RTC_CHECK(sender_config.encoder().has_payload_type());
|
||
|
|
config->encoder_settings.payload_name = sender_config.encoder().name();
|
||
|
|
config->encoder_settings.payload_type =
|
||
|
|
sender_config.encoder().payload_type();
|
||
|
|
}
|
||
|
|
|
||
|
|
void ParsedRtcEventLog::GetAudioPlayout(size_t index, uint32_t* ssrc) const {
|
||
|
|
RTC_CHECK_LT(index, GetNumberOfEvents());
|
||
|
|
const rtclog::Event& event = stream_[index];
|
||
|
|
RTC_CHECK(event.has_type());
|
||
|
|
RTC_CHECK_EQ(event.type(), rtclog::Event::AUDIO_PLAYOUT_EVENT);
|
||
|
|
RTC_CHECK(event.has_audio_playout_event());
|
||
|
|
const rtclog::AudioPlayoutEvent& loss_event = event.audio_playout_event();
|
||
|
|
RTC_CHECK(loss_event.has_local_ssrc());
|
||
|
|
if (ssrc != nullptr) {
|
||
|
|
*ssrc = loss_event.local_ssrc();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void ParsedRtcEventLog::GetBwePacketLossEvent(size_t index,
|
||
|
|
int32_t* bitrate,
|
||
|
|
uint8_t* fraction_loss,
|
||
|
|
int32_t* total_packets) const {
|
||
|
|
RTC_CHECK_LT(index, GetNumberOfEvents());
|
||
|
|
const rtclog::Event& event = stream_[index];
|
||
|
|
RTC_CHECK(event.has_type());
|
||
|
|
RTC_CHECK_EQ(event.type(), rtclog::Event::BWE_PACKET_LOSS_EVENT);
|
||
|
|
RTC_CHECK(event.has_bwe_packet_loss_event());
|
||
|
|
const rtclog::BwePacketLossEvent& loss_event = event.bwe_packet_loss_event();
|
||
|
|
RTC_CHECK(loss_event.has_bitrate());
|
||
|
|
if (bitrate != nullptr) {
|
||
|
|
*bitrate = loss_event.bitrate();
|
||
|
|
}
|
||
|
|
RTC_CHECK(loss_event.has_fraction_loss());
|
||
|
|
if (fraction_loss != nullptr) {
|
||
|
|
*fraction_loss = loss_event.fraction_loss();
|
||
|
|
}
|
||
|
|
RTC_CHECK(loss_event.has_total_packets());
|
||
|
|
if (total_packets != nullptr) {
|
||
|
|
*total_packets = loss_event.total_packets();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace webrtc
|