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/*
* Copyright (c) 2012 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 <assert.h>
#include <stdio.h>
#include <vector>
#include "google/gflags.h"
#include "webrtc/modules/audio_coding/neteq/tools/packet.h"
#include "webrtc/modules/audio_coding/neteq/tools/rtp_file_source.h"
#include "webrtc/system_wrappers/interface/scoped_ptr.h"
// Flag validator.
static bool ValidatePayloadType(const char* flagname, int32_t value) {
if (value >= 0 && value <= 127) // Value is ok.
return true;
printf("Invalid value for --%s: %d\n", flagname, static_cast<int>(value));
return false;
}
static bool ValidateExtensionId(const char* flagname, int32_t value) {
if (value > 0 && value <= 255) // Value is ok.
return true;
printf("Invalid value for --%s: %d\n", flagname, static_cast<int>(value));
return false;
}
// Define command line flags.
DEFINE_int32(red, 117, "RTP payload type for RED");
static const bool red_dummy =
google::RegisterFlagValidator(&FLAGS_red, &ValidatePayloadType);
DEFINE_int32(audio_level, 1, "Extension ID for audio level (RFC 6464)");
static const bool audio_level_dummy =
google::RegisterFlagValidator(&FLAGS_audio_level, &ValidateExtensionId);
int main(int argc, char* argv[]) {
std::string program_name = argv[0];
std::string usage =
"Tool for parsing an RTP dump file to text output.\n"
"Run " +
program_name +
" --helpshort for usage.\n"
"Example usage:\n" +
program_name + " input.rtp output.txt\n\n" +
"Output is sent to stdout if no output file is given." +
"Note that this tool can read files with our without payloads.";
google::SetUsageMessage(usage);
google::ParseCommandLineFlags(&argc, &argv, true);
if (argc != 2 && argc != 3) {
// Print usage information.
printf("%s", google::ProgramUsage());
return 0;
}
FILE* in_file = fopen(argv[1], "rb");
if (!in_file) {
printf("Cannot open input file %s\n", argv[1]);
return -1;
}
printf("Input file: %s\n", argv[1]);
webrtc::scoped_ptr<webrtc::test::RtpFileSource> file_source(
webrtc::test::RtpFileSource::Create(argv[1]));
assert(file_source.get());
// Set RTP extension ID.
bool print_audio_level = false;
if (!google::GetCommandLineFlagInfoOrDie("audio_level").is_default) {
print_audio_level = true;
file_source->RegisterRtpHeaderExtension(webrtc::kRtpExtensionAudioLevel,
FLAGS_audio_level);
}
FILE* out_file;
if (argc == 3) {
out_file = fopen(argv[2], "wt");
if (!out_file) {
printf("Cannot open output file %s\n", argv[2]);
return -1;
}
printf("Output file: %s\n\n", argv[2]);
} else {
out_file = stdout;
}
// Print file header.
fprintf(out_file, "SeqNo TimeStamp SendTime Size PT M SSRC");
if (print_audio_level) {
fprintf(out_file, " AuLvl (V)");
}
fprintf(out_file, "\n");
webrtc::scoped_ptr<webrtc::test::Packet> packet;
while (!file_source->EndOfFile()) {
packet.reset(file_source->NextPacket());
if (!packet.get()) {
// This is probably an RTCP packet. Move on to the next one.
continue;
}
assert(packet.get());
// Write packet data to file.
fprintf(out_file,
"%5u %10u %10u %5i %5i %2i %#08X",
packet->header().sequenceNumber,
packet->header().timestamp,
static_cast<unsigned int>(packet->time_ms()),
static_cast<int>(packet->packet_length_bytes()),
packet->header().payloadType,
packet->header().markerBit,
packet->header().ssrc);
if (print_audio_level && packet->header().extension.hasAudioLevel) {
// |audioLevel| consists of one bit for "V" and then 7 bits level.
fprintf(out_file,
" %5u (%1i)",
packet->header().extension.audioLevel & 0x7F,
(packet->header().extension.audioLevel & 0x80) == 0 ? 0 : 1);
}
fprintf(out_file, "\n");
if (packet->header().payloadType == FLAGS_red) {
std::list<webrtc::RTPHeader*> red_headers;
packet->ExtractRedHeaders(&red_headers);
while (!red_headers.empty()) {
webrtc::RTPHeader* red = red_headers.front();
assert(red);
fprintf(out_file,
"* %5u %10u %10u %5i\n",
red->sequenceNumber,
red->timestamp,
static_cast<unsigned int>(packet->time_ms()),
red->payloadType);
red_headers.pop_front();
delete red;
}
}
}
fclose(in_file);
fclose(out_file);
return 0;
}
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