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webrtc / src / 65792c5a5c542201f7b9feefded505842692e6ed / . / modules / audio_coding / neteq / tools / neteq_rtpplay.cc
blob: 8c1fa38c471cd25c9caf79167d8c1c6d6be0557e [file] [log] [blame]
/*
* Copyright (c) 2013 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 <errno.h>
#include <inttypes.h>
#include <limits.h> // For ULONG_MAX returned by strtoul.
#include <stdio.h>
#include <stdlib.h> // For strtoul.
#include <string.h>
#include <algorithm>
#include <ios>
#include <iostream>
#include <memory>
#include <numeric>
#include <string>
#include "modules/audio_coding/neteq/include/neteq.h"
#include "modules/audio_coding/neteq/tools/fake_decode_from_file.h"
#include "modules/audio_coding/neteq/tools/input_audio_file.h"
#include "modules/audio_coding/neteq/tools/neteq_delay_analyzer.h"
#include "modules/audio_coding/neteq/tools/neteq_packet_source_input.h"
#include "modules/audio_coding/neteq/tools/neteq_replacement_input.h"
#include "modules/audio_coding/neteq/tools/neteq_test.h"
#include "modules/audio_coding/neteq/tools/output_audio_file.h"
#include "modules/audio_coding/neteq/tools/output_wav_file.h"
#include "modules/audio_coding/neteq/tools/rtp_file_source.h"
#include "modules/include/module_common_types.h"
#include "rtc_base/checks.h"
#include "rtc_base/flags.h"
#include "test/testsupport/fileutils.h"
#include "typedefs.h" // NOLINT(build/include)
namespace webrtc {
namespace test {
namespace {
// Parses the input string for a valid SSRC (at the start of the string). If a
// valid SSRC is found, it is written to the output variable |ssrc|, and true is
// returned. Otherwise, false is returned.
bool ParseSsrc(const std::string& str, uint32_t* ssrc) {
if (str.empty())
return true;
int base = 10;
// Look for "0x" or "0X" at the start and change base to 16 if found.
if ((str.compare(0, 2, "0x") == 0) || (str.compare(0, 2, "0X") == 0))
base = 16;
errno = 0;
char* end_ptr;
unsigned long value = strtoul(str.c_str(), &end_ptr, base);
if (value == ULONG_MAX && errno == ERANGE)
return false; // Value out of range for unsigned long.
if (sizeof(unsigned long) > sizeof(uint32_t) && value > 0xFFFFFFFF)
return false; // Value out of range for uint32_t.
if (end_ptr - str.c_str() < static_cast<ptrdiff_t>(str.length()))
return false; // Part of the string was not parsed.
*ssrc = static_cast<uint32_t>(value);
return true;
}
// Flag validators.
bool ValidatePayloadType(int value) {
if (value >= 0 && value <= 127) // Value is ok.
return true;
printf("Payload type must be between 0 and 127, not %d\n",
static_cast<int>(value));
return false;
}
bool ValidateSsrcValue(const std::string& str) {
uint32_t dummy_ssrc;
if (ParseSsrc(str, &dummy_ssrc)) // Value is ok.
return true;
printf("Invalid SSRC: %s\n", str.c_str());
return false;
}
static bool ValidateExtensionId(int value) {
if (value > 0 && value <= 255) // Value is ok.
return true;
printf("Extension ID must be between 1 and 255, not %d\n",
static_cast<int>(value));
return false;
}
// Define command line flags.
DEFINE_int(pcmu, 0, "RTP payload type for PCM-u");
DEFINE_int(pcma, 8, "RTP payload type for PCM-a");
DEFINE_int(ilbc, 102, "RTP payload type for iLBC");
DEFINE_int(isac, 103, "RTP payload type for iSAC");
DEFINE_int(isac_swb, 104, "RTP payload type for iSAC-swb (32 kHz)");
DEFINE_int(opus, 111, "RTP payload type for Opus");
DEFINE_int(pcm16b, 93, "RTP payload type for PCM16b-nb (8 kHz)");
DEFINE_int(pcm16b_wb, 94, "RTP payload type for PCM16b-wb (16 kHz)");
DEFINE_int(pcm16b_swb32, 95, "RTP payload type for PCM16b-swb32 (32 kHz)");
DEFINE_int(pcm16b_swb48, 96, "RTP payload type for PCM16b-swb48 (48 kHz)");
DEFINE_int(g722, 9, "RTP payload type for G.722");
DEFINE_int(avt, 106, "RTP payload type for AVT/DTMF (8 kHz)");
DEFINE_int(avt_16, 114, "RTP payload type for AVT/DTMF (16 kHz)");
DEFINE_int(avt_32, 115, "RTP payload type for AVT/DTMF (32 kHz)");
DEFINE_int(avt_48, 116, "RTP payload type for AVT/DTMF (48 kHz)");
DEFINE_int(red, 117, "RTP payload type for redundant audio (RED)");
DEFINE_int(cn_nb, 13, "RTP payload type for comfort noise (8 kHz)");
DEFINE_int(cn_wb, 98, "RTP payload type for comfort noise (16 kHz)");
DEFINE_int(cn_swb32, 99, "RTP payload type for comfort noise (32 kHz)");
DEFINE_int(cn_swb48, 100, "RTP payload type for comfort noise (48 kHz)");
DEFINE_bool(codec_map, false, "Prints the mapping between RTP payload type and "
"codec");
DEFINE_string(replacement_audio_file, "",
"A PCM file that will be used to populate ""dummy"" RTP packets");
DEFINE_string(ssrc,
"",
"Only use packets with this SSRC (decimal or hex, the latter "
"starting with 0x)");
DEFINE_int(audio_level, 1, "Extension ID for audio level (RFC 6464)");
DEFINE_int(abs_send_time, 3, "Extension ID for absolute sender time");
DEFINE_int(transport_seq_no, 5, "Extension ID for transport sequence number");
DEFINE_bool(matlabplot,
false,
"Generates a matlab script for plotting the delay profile");
DEFINE_bool(pythonplot,
false,
"Generates a python script for plotting the delay profile");
DEFINE_bool(help, false, "Prints this message");
DEFINE_bool(concealment_events, false, "Prints concealment events");
// Maps a codec type to a printable name string.
std::string CodecName(NetEqDecoder codec) {
switch (codec) {
case NetEqDecoder::kDecoderPCMu:
return "PCM-u";
case NetEqDecoder::kDecoderPCMa:
return "PCM-a";
case NetEqDecoder::kDecoderILBC:
return "iLBC";
case NetEqDecoder::kDecoderISAC:
return "iSAC";
case NetEqDecoder::kDecoderISACswb:
return "iSAC-swb (32 kHz)";
case NetEqDecoder::kDecoderOpus:
return "Opus";
case NetEqDecoder::kDecoderPCM16B:
return "PCM16b-nb (8 kHz)";
case NetEqDecoder::kDecoderPCM16Bwb:
return "PCM16b-wb (16 kHz)";
case NetEqDecoder::kDecoderPCM16Bswb32kHz:
return "PCM16b-swb32 (32 kHz)";
case NetEqDecoder::kDecoderPCM16Bswb48kHz:
return "PCM16b-swb48 (48 kHz)";
case NetEqDecoder::kDecoderG722:
return "G.722";
case NetEqDecoder::kDecoderRED:
return "redundant audio (RED)";
case NetEqDecoder::kDecoderAVT:
return "AVT/DTMF (8 kHz)";
case NetEqDecoder::kDecoderAVT16kHz:
return "AVT/DTMF (16 kHz)";
case NetEqDecoder::kDecoderAVT32kHz:
return "AVT/DTMF (32 kHz)";
case NetEqDecoder::kDecoderAVT48kHz:
return "AVT/DTMF (48 kHz)";
case NetEqDecoder::kDecoderCNGnb:
return "comfort noise (8 kHz)";
case NetEqDecoder::kDecoderCNGwb:
return "comfort noise (16 kHz)";
case NetEqDecoder::kDecoderCNGswb32kHz:
return "comfort noise (32 kHz)";
case NetEqDecoder::kDecoderCNGswb48kHz:
return "comfort noise (48 kHz)";
default:
FATAL();
return "undefined";
}
}
void PrintCodecMappingEntry(NetEqDecoder codec, int flag) {
std::cout << CodecName(codec) << ": " << flag << std::endl;
}
void PrintCodecMapping() {
PrintCodecMappingEntry(NetEqDecoder::kDecoderPCMu, FLAG_pcmu);
PrintCodecMappingEntry(NetEqDecoder::kDecoderPCMa, FLAG_pcma);
PrintCodecMappingEntry(NetEqDecoder::kDecoderILBC, FLAG_ilbc);
PrintCodecMappingEntry(NetEqDecoder::kDecoderISAC, FLAG_isac);
PrintCodecMappingEntry(NetEqDecoder::kDecoderISACswb, FLAG_isac_swb);
PrintCodecMappingEntry(NetEqDecoder::kDecoderOpus, FLAG_opus);
PrintCodecMappingEntry(NetEqDecoder::kDecoderPCM16B, FLAG_pcm16b);
PrintCodecMappingEntry(NetEqDecoder::kDecoderPCM16Bwb, FLAG_pcm16b_wb);
PrintCodecMappingEntry(NetEqDecoder::kDecoderPCM16Bswb32kHz,
FLAG_pcm16b_swb32);
PrintCodecMappingEntry(NetEqDecoder::kDecoderPCM16Bswb48kHz,
FLAG_pcm16b_swb48);
PrintCodecMappingEntry(NetEqDecoder::kDecoderG722, FLAG_g722);
PrintCodecMappingEntry(NetEqDecoder::kDecoderAVT, FLAG_avt);
PrintCodecMappingEntry(NetEqDecoder::kDecoderAVT16kHz, FLAG_avt_16);
PrintCodecMappingEntry(NetEqDecoder::kDecoderAVT32kHz, FLAG_avt_32);
PrintCodecMappingEntry(NetEqDecoder::kDecoderAVT48kHz, FLAG_avt_48);
PrintCodecMappingEntry(NetEqDecoder::kDecoderRED, FLAG_red);
PrintCodecMappingEntry(NetEqDecoder::kDecoderCNGnb, FLAG_cn_nb);
PrintCodecMappingEntry(NetEqDecoder::kDecoderCNGwb, FLAG_cn_wb);
PrintCodecMappingEntry(NetEqDecoder::kDecoderCNGswb32kHz, FLAG_cn_swb32);
PrintCodecMappingEntry(NetEqDecoder::kDecoderCNGswb48kHz, FLAG_cn_swb48);
}
rtc::Optional<int> CodecSampleRate(uint8_t payload_type) {
if (payload_type == FLAG_pcmu || payload_type == FLAG_pcma ||
payload_type == FLAG_ilbc || payload_type == FLAG_pcm16b ||
payload_type == FLAG_cn_nb || payload_type == FLAG_avt)
return 8000;
if (payload_type == FLAG_isac || payload_type == FLAG_pcm16b_wb ||
payload_type == FLAG_g722 || payload_type == FLAG_cn_wb ||
payload_type == FLAG_avt_16)
return 16000;
if (payload_type == FLAG_isac_swb || payload_type == FLAG_pcm16b_swb32 ||
payload_type == FLAG_cn_swb32 || payload_type == FLAG_avt_32)
return 32000;
if (payload_type == FLAG_opus || payload_type == FLAG_pcm16b_swb48 ||
payload_type == FLAG_cn_swb48 || payload_type == FLAG_avt_48)
return 48000;
if (payload_type == FLAG_red)
return 0;
return rtc::nullopt;
}
// Class to let through only the packets with a given SSRC. Should be used as an
// outer layer on another NetEqInput object.
class FilterSsrcInput : public NetEqInput {
public:
FilterSsrcInput(std::unique_ptr<NetEqInput> source, uint32_t ssrc)
: source_(std::move(source)), ssrc_(ssrc) {
FindNextWithCorrectSsrc();
RTC_CHECK(source_->NextHeader()) << "Found no packet with SSRC = 0x"
<< std::hex << ssrc_;
}
// All methods but PopPacket() simply relay to the |source_| object.
rtc::Optional<int64_t> NextPacketTime() const override {
return source_->NextPacketTime();
}
rtc::Optional<int64_t> NextOutputEventTime() const override {
return source_->NextOutputEventTime();
}
// Returns the next packet, and throws away upcoming packets that do not match
// the desired SSRC.
std::unique_ptr<PacketData> PopPacket() override {
std::unique_ptr<PacketData> packet_to_return = source_->PopPacket();
RTC_DCHECK(!packet_to_return || packet_to_return->header.ssrc == ssrc_);
// Pre-fetch the next packet with correct SSRC. Hence, |source_| will always
// be have a valid packet (or empty if no more packets are available) when
// this method returns.
FindNextWithCorrectSsrc();
return packet_to_return;
}
void AdvanceOutputEvent() override { source_->AdvanceOutputEvent(); }
bool ended() const override { return source_->ended(); }
rtc::Optional<RTPHeader> NextHeader() const override {
return source_->NextHeader();
}
private:
void FindNextWithCorrectSsrc() {
while (source_->NextHeader() && source_->NextHeader()->ssrc != ssrc_) {
source_->PopPacket();
}
}
std::unique_ptr<NetEqInput> source_;
uint32_t ssrc_;
};
// A callback class which prints whenver the inserted packet stream changes
// the SSRC.
class SsrcSwitchDetector : public NetEqPostInsertPacket {
public:
// Takes a pointer to another callback object, which will be invoked after
// this object finishes. This does not transfer ownership, and null is a
// valid value.
explicit SsrcSwitchDetector(NetEqPostInsertPacket* other_callback)
: other_callback_(other_callback) {}
void AfterInsertPacket(const NetEqInput::PacketData& packet,
NetEq* neteq) override {
if (last_ssrc_ && packet.header.ssrc != *last_ssrc_) {
std::cout << "Changing streams from 0x" << std::hex << *last_ssrc_
<< " to 0x" << std::hex << packet.header.ssrc
<< std::dec << " (payload type "
<< static_cast<int>(packet.header.payloadType) << ")"
<< std::endl;
}
last_ssrc_ = packet.header.ssrc;
if (other_callback_) {
other_callback_->AfterInsertPacket(packet, neteq);
}
}
private:
NetEqPostInsertPacket* other_callback_;
rtc::Optional<uint32_t> last_ssrc_;
};
class StatsGetter : public NetEqGetAudioCallback {
public:
// This struct is a replica of webrtc::NetEqNetworkStatistics, but with all
// values stored in double precision.
struct Stats {
double current_buffer_size_ms = 0.0;
double preferred_buffer_size_ms = 0.0;
double jitter_peaks_found = 0.0;
double packet_loss_rate = 0.0;
double expand_rate = 0.0;
double speech_expand_rate = 0.0;
double preemptive_rate = 0.0;
double accelerate_rate = 0.0;
double secondary_decoded_rate = 0.0;
double secondary_discarded_rate = 0.0;
double clockdrift_ppm = 0.0;
double added_zero_samples = 0.0;
double mean_waiting_time_ms = 0.0;
double median_waiting_time_ms = 0.0;
double min_waiting_time_ms = 0.0;
double max_waiting_time_ms = 0.0;
};
struct ConcealmentEvent {
uint64_t duration_ms;
size_t concealment_event_number;
int64_t time_from_previous_event_end_ms;
friend std::ostream& operator<<(std::ostream& stream,
const ConcealmentEvent& concealment_event) {
stream << "ConcealmentEvent duration_ms:" << concealment_event.duration_ms
<< " event_number:" << concealment_event.concealment_event_number
<< " time_from_previous_event_end_ms:"
<< concealment_event.time_from_previous_event_end_ms << "\n";
return stream;
}
};
// Takes a pointer to another callback object, which will be invoked after
// this object finishes. This does not transfer ownership, and null is a
// valid value.
explicit StatsGetter(NetEqGetAudioCallback* other_callback)
: other_callback_(other_callback) {}
void BeforeGetAudio(NetEq* neteq) override {
if (other_callback_) {
other_callback_->BeforeGetAudio(neteq);
}
}
void AfterGetAudio(int64_t time_now_ms,
const AudioFrame& audio_frame,
bool muted,
NetEq* neteq) override {
if (++counter_ >= 100) {
counter_ = 0;
NetEqNetworkStatistics stats;
RTC_CHECK_EQ(neteq->NetworkStatistics(&stats), 0);
stats_.push_back(stats);
}
const auto lifetime_stat = neteq->GetLifetimeStatistics();
if (current_concealment_event_ != lifetime_stat.concealment_events) {
if (last_event_end_time_ms_ > 0) {
// Do not account for the first event to avoid start of the call
// skewing.
ConcealmentEvent concealment_event;
uint64_t last_event_voice_concealed_samples =
lifetime_stat.voice_concealed_samples -
voice_concealed_samples_until_last_event_;
RTC_CHECK_GT(last_event_voice_concealed_samples, 0);
concealment_event.duration_ms = last_event_voice_concealed_samples /
(audio_frame.sample_rate_hz_ / 1000);
concealment_event.concealment_event_number = current_concealment_event_;
concealment_event.time_from_previous_event_end_ms =
time_now_ms - last_event_end_time_ms_;
concealment_events_.emplace_back(concealment_event);
voice_concealed_samples_until_last_event_ =
lifetime_stat.voice_concealed_samples;
}
last_event_end_time_ms_ = time_now_ms;
voice_concealed_samples_until_last_event_ =
lifetime_stat.voice_concealed_samples;
current_concealment_event_ = lifetime_stat.concealment_events;
}
if (other_callback_) {
other_callback_->AfterGetAudio(time_now_ms, audio_frame, muted, neteq);
}
}
double AverageSpeechExpandRate() const {
double sum_speech_expand =
std::accumulate(stats_.begin(), stats_.end(), double{0.0},
[](double a, NetEqNetworkStatistics b) {
return a + static_cast<double>(b.speech_expand_rate);
});
return sum_speech_expand / 16384.0 / stats_.size();
}
const std::vector<ConcealmentEvent>& concealment_events() {
// Do not account for the last concealment event to avoid potential end
// call skewing.
return concealment_events_;
}
Stats AverageStats() const {
Stats sum_stats = std::accumulate(
stats_.begin(), stats_.end(), Stats(),
[](Stats a, NetEqNetworkStatistics b) {
a.current_buffer_size_ms += b.current_buffer_size_ms;
a.preferred_buffer_size_ms += b.preferred_buffer_size_ms;
a.jitter_peaks_found += b.jitter_peaks_found;
a.packet_loss_rate += b.packet_loss_rate / 16384.0;
a.expand_rate += b.expand_rate / 16384.0;
a.speech_expand_rate += b.speech_expand_rate / 16384.0;
a.preemptive_rate += b.preemptive_rate / 16384.0;
a.accelerate_rate += b.accelerate_rate / 16384.0;
a.secondary_decoded_rate += b.secondary_decoded_rate / 16384.0;
a.secondary_discarded_rate += b.secondary_discarded_rate / 16384.0;
a.clockdrift_ppm += b.clockdrift_ppm;
a.added_zero_samples += b.added_zero_samples;
a.mean_waiting_time_ms += b.mean_waiting_time_ms;
a.median_waiting_time_ms += b.median_waiting_time_ms;
a.min_waiting_time_ms =
std::min(a.min_waiting_time_ms,
static_cast<double>(b.min_waiting_time_ms));
a.max_waiting_time_ms =
std::max(a.max_waiting_time_ms,
static_cast<double>(b.max_waiting_time_ms));
return a;
});
sum_stats.current_buffer_size_ms /= stats_.size();
sum_stats.preferred_buffer_size_ms /= stats_.size();
sum_stats.jitter_peaks_found /= stats_.size();
sum_stats.packet_loss_rate /= stats_.size();
sum_stats.expand_rate /= stats_.size();
sum_stats.speech_expand_rate /= stats_.size();
sum_stats.preemptive_rate /= stats_.size();
sum_stats.accelerate_rate /= stats_.size();
sum_stats.secondary_decoded_rate /= stats_.size();
sum_stats.secondary_discarded_rate /= stats_.size();
sum_stats.clockdrift_ppm /= stats_.size();
sum_stats.added_zero_samples /= stats_.size();
sum_stats.mean_waiting_time_ms /= stats_.size();
sum_stats.median_waiting_time_ms /= stats_.size();
return sum_stats;
}
private:
NetEqGetAudioCallback* other_callback_;
size_t counter_ = 0;
std::vector<NetEqNetworkStatistics> stats_;
size_t current_concealment_event_ = 1;
uint64_t voice_concealed_samples_until_last_event_ = 0;
std::vector<ConcealmentEvent> concealment_events_;
int64_t last_event_end_time_ms_ = 0;
};
int RunTest(int argc, char* argv[]) {
std::string program_name = argv[0];
std::string usage = "Tool for decoding an RTP dump file using NetEq.\n"
"Run " + program_name + " --help for usage.\n"
"Example usage:\n" + program_name +
" input.rtp output.{pcm, wav}\n";
if (rtc::FlagList::SetFlagsFromCommandLine(&argc, argv, true)) {
return 1;
}
if (FLAG_help) {
std::cout << usage;
rtc::FlagList::Print(nullptr, false);
return 0;
}
if (FLAG_codec_map) {
PrintCodecMapping();
}
if (argc != 3) {
if (FLAG_codec_map) {
// We have already printed the codec map. Just end the program.
return 0;
}
// Print usage information.
std::cout << usage;
return 0;
}
RTC_CHECK(ValidatePayloadType(FLAG_pcmu));
RTC_CHECK(ValidatePayloadType(FLAG_pcma));
RTC_CHECK(ValidatePayloadType(FLAG_ilbc));
RTC_CHECK(ValidatePayloadType(FLAG_isac));
RTC_CHECK(ValidatePayloadType(FLAG_isac_swb));
RTC_CHECK(ValidatePayloadType(FLAG_opus));
RTC_CHECK(ValidatePayloadType(FLAG_pcm16b));
RTC_CHECK(ValidatePayloadType(FLAG_pcm16b_wb));
RTC_CHECK(ValidatePayloadType(FLAG_pcm16b_swb32));
RTC_CHECK(ValidatePayloadType(FLAG_pcm16b_swb48));
RTC_CHECK(ValidatePayloadType(FLAG_g722));
RTC_CHECK(ValidatePayloadType(FLAG_avt));
RTC_CHECK(ValidatePayloadType(FLAG_avt_16));
RTC_CHECK(ValidatePayloadType(FLAG_avt_32));
RTC_CHECK(ValidatePayloadType(FLAG_avt_48));
RTC_CHECK(ValidatePayloadType(FLAG_red));
RTC_CHECK(ValidatePayloadType(FLAG_cn_nb));
RTC_CHECK(ValidatePayloadType(FLAG_cn_wb));
RTC_CHECK(ValidatePayloadType(FLAG_cn_swb32));
RTC_CHECK(ValidatePayloadType(FLAG_cn_swb48));
RTC_CHECK(ValidateSsrcValue(FLAG_ssrc));
RTC_CHECK(ValidateExtensionId(FLAG_audio_level));
RTC_CHECK(ValidateExtensionId(FLAG_abs_send_time));
RTC_CHECK(ValidateExtensionId(FLAG_transport_seq_no));
// Gather RTP header extensions in a map.
NetEqPacketSourceInput::RtpHeaderExtensionMap rtp_ext_map = {
{FLAG_audio_level, kRtpExtensionAudioLevel},
{FLAG_abs_send_time, kRtpExtensionAbsoluteSendTime},
{FLAG_transport_seq_no, kRtpExtensionTransportSequenceNumber}};
const std::string input_file_name = argv[1];
std::unique_ptr<NetEqInput> input;
if (RtpFileSource::ValidRtpDump(input_file_name) ||
RtpFileSource::ValidPcap(input_file_name)) {
input.reset(new NetEqRtpDumpInput(input_file_name, rtp_ext_map));
} else {
input.reset(new NetEqEventLogInput(input_file_name, rtp_ext_map));
}
std::cout << "Input file: " << input_file_name << std::endl;
RTC_CHECK(input) << "Cannot open input file";
RTC_CHECK(!input->ended()) << "Input file is empty";
// Check if an SSRC value was provided.
if (strlen(FLAG_ssrc) > 0) {
uint32_t ssrc;
RTC_CHECK(ParseSsrc(FLAG_ssrc, &ssrc)) << "Flag verification has failed.";
input.reset(new FilterSsrcInput(std::move(input), ssrc));
}
// Check the sample rate.
rtc::Optional<int> sample_rate_hz;
std::set<std::pair<int, uint32_t>> discarded_pt_and_ssrc;
while (input->NextHeader()) {
rtc::Optional<RTPHeader> first_rtp_header = input->NextHeader();
RTC_DCHECK(first_rtp_header);
sample_rate_hz = CodecSampleRate(first_rtp_header->payloadType);
if (sample_rate_hz) {
std::cout << "Found valid packet with payload type "
<< static_cast<int>(first_rtp_header->payloadType)
<< " and SSRC 0x" << std::hex << first_rtp_header->ssrc
<< std::dec << std::endl;
break;
}
// Discard this packet and move to the next. Keep track of discarded payload
// types and SSRCs.
discarded_pt_and_ssrc.emplace(first_rtp_header->payloadType,
first_rtp_header->ssrc);
input->PopPacket();
}
if (!discarded_pt_and_ssrc.empty()) {
std::cout << "Discarded initial packets with the following payload types "
"and SSRCs:"
<< std::endl;
for (const auto& d : discarded_pt_and_ssrc) {
std::cout << "PT " << d.first << "; SSRC 0x" << std::hex
<< static_cast<int>(d.second) << std::dec << std::endl;
}
}
if (!sample_rate_hz) {
std::cout << "Cannot find any packets with known payload types"
<< std::endl;
RTC_NOTREACHED();
}
// Open the output file now that we know the sample rate. (Rate is only needed
// for wav files.)
const std::string output_file_name = argv[2];
std::unique_ptr<AudioSink> output;
if (output_file_name.size() >= 4 &&
output_file_name.substr(output_file_name.size() - 4) == ".wav") {
// Open a wav file.
output.reset(new OutputWavFile(output_file_name, *sample_rate_hz));
} else {
// Open a pcm file.
output.reset(new OutputAudioFile(output_file_name));
}
std::cout << "Output file: " << output_file_name << std::endl;
NetEqTest::DecoderMap codecs = {
{FLAG_pcmu, std::make_pair(NetEqDecoder::kDecoderPCMu, "pcmu")},
{FLAG_pcma, std::make_pair(NetEqDecoder::kDecoderPCMa, "pcma")},
{FLAG_ilbc, std::make_pair(NetEqDecoder::kDecoderILBC, "ilbc")},
{FLAG_isac, std::make_pair(NetEqDecoder::kDecoderISAC, "isac")},
{FLAG_isac_swb,
std::make_pair(NetEqDecoder::kDecoderISACswb, "isac-swb")},
{FLAG_opus, std::make_pair(NetEqDecoder::kDecoderOpus, "opus")},
{FLAG_pcm16b, std::make_pair(NetEqDecoder::kDecoderPCM16B, "pcm16-nb")},
{FLAG_pcm16b_wb,
std::make_pair(NetEqDecoder::kDecoderPCM16Bwb, "pcm16-wb")},
{FLAG_pcm16b_swb32,
std::make_pair(NetEqDecoder::kDecoderPCM16Bswb32kHz, "pcm16-swb32")},
{FLAG_pcm16b_swb48,
std::make_pair(NetEqDecoder::kDecoderPCM16Bswb48kHz, "pcm16-swb48")},
{FLAG_g722, std::make_pair(NetEqDecoder::kDecoderG722, "g722")},
{FLAG_avt, std::make_pair(NetEqDecoder::kDecoderAVT, "avt")},
{FLAG_avt_16, std::make_pair(NetEqDecoder::kDecoderAVT16kHz, "avt-16")},
{FLAG_avt_32,
std::make_pair(NetEqDecoder::kDecoderAVT32kHz, "avt-32")},
{FLAG_avt_48,
std::make_pair(NetEqDecoder::kDecoderAVT48kHz, "avt-48")},
{FLAG_red, std::make_pair(NetEqDecoder::kDecoderRED, "red")},
{FLAG_cn_nb, std::make_pair(NetEqDecoder::kDecoderCNGnb, "cng-nb")},
{FLAG_cn_wb, std::make_pair(NetEqDecoder::kDecoderCNGwb, "cng-wb")},
{FLAG_cn_swb32,
std::make_pair(NetEqDecoder::kDecoderCNGswb32kHz, "cng-swb32")},
{FLAG_cn_swb48,
std::make_pair(NetEqDecoder::kDecoderCNGswb48kHz, "cng-swb48")}};
// Check if a replacement audio file was provided.
std::unique_ptr<AudioDecoder> replacement_decoder;
NetEqTest::ExtDecoderMap ext_codecs;
if (strlen(FLAG_replacement_audio_file) > 0) {
// Find largest unused payload type.
int replacement_pt = 127;
while (!(codecs.find(replacement_pt) == codecs.end() &&
ext_codecs.find(replacement_pt) == ext_codecs.end())) {
--replacement_pt;
RTC_CHECK_GE(replacement_pt, 0);
}
auto std_set_int32_to_uint8 = [](const std::set<int32_t>& a) {
std::set<uint8_t> b;
for (auto& x : a) {
b.insert(static_cast<uint8_t>(x));
}
return b;
};
std::set<uint8_t> cn_types = std_set_int32_to_uint8(
{FLAG_cn_nb, FLAG_cn_wb, FLAG_cn_swb32, FLAG_cn_swb48});
std::set<uint8_t> forbidden_types =
std_set_int32_to_uint8({FLAG_g722, FLAG_red, FLAG_avt,
FLAG_avt_16, FLAG_avt_32, FLAG_avt_48});
input.reset(new NetEqReplacementInput(std::move(input), replacement_pt,
cn_types, forbidden_types));
replacement_decoder.reset(new FakeDecodeFromFile(
std::unique_ptr<InputAudioFile>(
new InputAudioFile(FLAG_replacement_audio_file)),
48000, false));
NetEqTest::ExternalDecoderInfo ext_dec_info = {
replacement_decoder.get(), NetEqDecoder::kDecoderArbitrary,
"replacement codec"};
ext_codecs[replacement_pt] = ext_dec_info;
}
NetEqTest::Callbacks callbacks;
std::unique_ptr<NetEqDelayAnalyzer> delay_analyzer;
if (FLAG_matlabplot || FLAG_pythonplot) {
delay_analyzer.reset(new NetEqDelayAnalyzer);
}
SsrcSwitchDetector ssrc_switch_detector(delay_analyzer.get());
callbacks.post_insert_packet = &ssrc_switch_detector;
StatsGetter stats_getter(delay_analyzer.get());
callbacks.get_audio_callback = &stats_getter;
NetEq::Config config;
config.sample_rate_hz = *sample_rate_hz;
NetEqTest test(config, codecs, ext_codecs, std::move(input),
std::move(output), callbacks);
int64_t test_duration_ms = test.Run();
if (FLAG_matlabplot) {
auto matlab_script_name = output_file_name;
std::replace(matlab_script_name.begin(), matlab_script_name.end(), '.',
'_');
std::cout << "Creating Matlab plot script " << matlab_script_name + ".m"
<< std::endl;
delay_analyzer->CreateMatlabScript(matlab_script_name + ".m");
}
if (FLAG_pythonplot) {
auto python_script_name = output_file_name;
std::replace(python_script_name.begin(), python_script_name.end(), '.',
'_');
std::cout << "Creating Python plot script " << python_script_name + ".py"
<< std::endl;
delay_analyzer->CreatePythonScript(python_script_name + ".py");
}
printf("Simulation statistics:\n");
printf(" output duration: %" PRId64 " ms\n", test_duration_ms);
auto stats = stats_getter.AverageStats();
printf(" packet_loss_rate: %f %%\n", 100.0 * stats.packet_loss_rate);
printf(" expand_rate: %f %%\n", 100.0 * stats.expand_rate);
printf(" speech_expand_rate: %f %%\n", 100.0 * stats.speech_expand_rate);
printf(" preemptive_rate: %f %%\n", 100.0 * stats.preemptive_rate);
printf(" accelerate_rate: %f %%\n", 100.0 * stats.accelerate_rate);
printf(" secondary_decoded_rate: %f %%\n",
100.0 * stats.secondary_decoded_rate);
printf(" secondary_discarded_rate: %f %%\n",
100.0 * stats.secondary_discarded_rate);
printf(" clockdrift_ppm: %f ppm\n", stats.clockdrift_ppm);
printf(" mean_waiting_time_ms: %f ms\n", stats.mean_waiting_time_ms);
printf(" median_waiting_time_ms: %f ms\n", stats.median_waiting_time_ms);
printf(" min_waiting_time_ms: %f ms\n", stats.min_waiting_time_ms);
printf(" max_waiting_time_ms: %f ms\n", stats.max_waiting_time_ms);
printf(" current_buffer_size_ms: %f ms\n", stats.current_buffer_size_ms);
printf(" preferred_buffer_size_ms: %f ms\n", stats.preferred_buffer_size_ms);
if (FLAG_concealment_events) {
std::cout << " concealment_events_ms:"
<< "\n";
for (auto concealment_event : stats_getter.concealment_events())
std::cout << concealment_event;
std::cout << " end of concealment_events_ms\n";
}
return 0;
}
} // namespace
} // namespace test
} // namespace webrtc
int main(int argc, char* argv[]) {
return webrtc::test::RunTest(argc, argv);
}