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100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <algorithm>
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#include <stdio.h>
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#include <vector>
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#include "NETEQTEST_RTPpacket.h"
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#include "gtest/gtest.h"
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/*********************/
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/* Misc. definitions */
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/*********************/
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#define FIRSTLINELEN 40
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int main(int argc, char* argv[])
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{
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if(argc < 4 || argc > 6)
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{
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printf("Usage: RTPtimeshift in.rtp out.rtp newStartTS [newStartSN [newStartArrTime]]\n");
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exit(1);
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}
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FILE *inFile=fopen(argv[1],"rb");
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if (!inFile)
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{
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printf("Cannot open input file %s\n", argv[1]);
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return(-1);
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}
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printf("Input RTP file: %s\n",argv[1]);
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FILE *outFile=fopen(argv[2],"wb");
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if (!outFile)
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{
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printf("Cannot open output file %s\n", argv[2]);
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return(-1);
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}
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printf("Output RTP file: %s\n\n",argv[2]);
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// read file header and write directly to output file
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const unsigned int kRtpDumpHeaderSize = 4 + 4 + 4 + 2 + 2;
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char firstline[FIRSTLINELEN];
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EXPECT_TRUE(fgets(firstline, FIRSTLINELEN, inFile) != NULL);
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EXPECT_GT(fputs(firstline, outFile), 0);
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EXPECT_EQ(kRtpDumpHeaderSize,
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fread(firstline, 1, kRtpDumpHeaderSize, inFile));
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EXPECT_EQ(kRtpDumpHeaderSize,
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fwrite(firstline, 1, kRtpDumpHeaderSize, outFile));
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NETEQTEST_RTPpacket packet;
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int packLen = packet.readFromFile(inFile);
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if (packLen < 0)
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{
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exit(1);
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}
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// get new start TS and start SeqNo from arguments
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uint32_t TSdiff = atoi(argv[3]) - packet.timeStamp();
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uint16_t SNdiff = 0;
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uint32_t ATdiff = 0;
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if (argc > 4)
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{
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int startSN = atoi(argv[4]);
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if (startSN >= 0)
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SNdiff = startSN - packet.sequenceNumber();
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if (argc > 5)
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{
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int startTS = atoi(argv[5]);
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if (startTS >= 0)
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ATdiff = startTS - packet.time();
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}
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}
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while (packLen >= 0)
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{
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packet.setTimeStamp(packet.timeStamp() + TSdiff);
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packet.setSequenceNumber(packet.sequenceNumber() + SNdiff);
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packet.setTime(packet.time() + ATdiff);
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packet.writeToFile(outFile);
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packLen = packet.readFromFile(inFile);
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}
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fclose(inFile);
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fclose(outFile);
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return 0;
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}
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