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/*
* Copyright (c) 2014 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/modules/remote_bitrate_estimator/tools/bwe_rtp.h"
#include <sstream>
#include <stdio.h>
#include <string>
#include "gflags/gflags.h"
#include "webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_abs_send_time.h"
#include "webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.h"
#include "webrtc/modules/rtp_rtcp/interface/rtp_header_parser.h"
#include "webrtc/modules/rtp_rtcp/interface/rtp_payload_registry.h"
#include "webrtc/test/rtp_file_reader.h"
namespace flags {
DEFINE_string(extension_type,
"abs",
"Extension type, either abs for absolute send time or tsoffset "
"for timestamp offset.");
std::string ExtensionType() {
return static_cast<std::string>(FLAGS_extension_type);
}
DEFINE_int32(extension_id, 3, "Extension id.");
int ExtensionId() {
return static_cast<int>(FLAGS_extension_id);
}
DEFINE_string(input_file, "", "Input file.");
std::string InputFile() {
return static_cast<std::string>(FLAGS_input_file);
}
DEFINE_string(ssrc_filter,
"",
"Comma-separated list of SSRCs in hexadecimal which are to be "
"used as input to the BWE (only applicable to pcap files).");
std::set<uint32_t> SsrcFilter() {
std::string ssrc_filter_string = static_cast<std::string>(FLAGS_ssrc_filter);
if (ssrc_filter_string.empty())
return std::set<uint32_t>();
std::stringstream ss;
std::string ssrc_filter = ssrc_filter_string;
std::set<uint32_t> ssrcs;
// Parse the ssrcs in hexadecimal format.
ss << std::hex << ssrc_filter;
uint32_t ssrc;
while (ss >> ssrc) {
ssrcs.insert(ssrc);
ss.ignore(1, ',');
}
return ssrcs;
}
} // namespace flags
bool ParseArgsAndSetupEstimator(int argc,
char** argv,
webrtc::Clock* clock,
webrtc::RemoteBitrateObserver* observer,
webrtc::test::RtpFileReader** rtp_reader,
webrtc::RtpHeaderParser** parser,
webrtc::RemoteBitrateEstimator** estimator,
std::string* estimator_used) {
google::ParseCommandLineFlags(&argc, &argv, true);
std::string filename = flags::InputFile();
std::set<uint32_t> ssrc_filter = flags::SsrcFilter();
fprintf(stderr, "Filter on SSRC: ");
for (auto& s : ssrc_filter) {
fprintf(stderr, "0x%08x, ", s);
}
fprintf(stderr, "\n");
if (filename.substr(filename.find_last_of(".")) == ".pcap") {
fprintf(stderr, "Opening as pcap\n");
*rtp_reader = webrtc::test::RtpFileReader::Create(
webrtc::test::RtpFileReader::kPcap, filename.c_str(),
flags::SsrcFilter());
} else {
fprintf(stderr, "Opening as rtp\n");
*rtp_reader = webrtc::test::RtpFileReader::Create(
webrtc::test::RtpFileReader::kRtpDump, filename.c_str());
}
if (!*rtp_reader) {
fprintf(stderr, "Cannot open input file %s\n", filename.c_str());
return false;
}
fprintf(stderr, "Input file: %s\n\n", filename.c_str());
webrtc::RTPExtensionType extension = webrtc::kRtpExtensionAbsoluteSendTime;
if (flags::ExtensionType() == "tsoffset") {
extension = webrtc::kRtpExtensionTransmissionTimeOffset;
fprintf(stderr, "Extension: toffset\n");
} else if (flags::ExtensionType() == "abs") {
fprintf(stderr, "Extension: abs\n");
} else {
fprintf(stderr, "Unknown extension type\n");
return false;
}
// Setup the RTP header parser and the bitrate estimator.
*parser = webrtc::RtpHeaderParser::Create();
(*parser)->RegisterRtpHeaderExtension(extension, flags::ExtensionId());
if (estimator) {
switch (extension) {
case webrtc::kRtpExtensionAbsoluteSendTime: {
*estimator =
new webrtc::RemoteBitrateEstimatorAbsSendTime(observer, clock);
*estimator_used = "AbsoluteSendTimeRemoteBitrateEstimator";
break;
}
case webrtc::kRtpExtensionTransmissionTimeOffset: {
*estimator =
new webrtc::RemoteBitrateEstimatorSingleStream(observer, clock);
*estimator_used = "RemoteBitrateEstimator";
break;
}
default:
assert(false);
}
}
return true;
}
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