summaryrefslogtreecommitdiffstats
path: root/src/DabMod.cpp
diff options
context:
space:
mode:
authorMatthias (think) <matthias@mpb.li>2012-07-11 12:00:56 +0200
committerMatthias (think) <matthias@mpb.li>2012-07-11 12:00:56 +0200
commit4b814d92fe9787bf72ed3a9632e0866f4cedd27f (patch)
treefeb407e9f2c0658dda896c332864fe6d265aaece /src/DabMod.cpp
parente92f9c408634810828e75d4ad6da408e1c142195 (diff)
downloaddabmod-4b814d92fe9787bf72ed3a9632e0866f4cedd27f.tar.gz
dabmod-4b814d92fe9787bf72ed3a9632e0866f4cedd27f.tar.bz2
dabmod-4b814d92fe9787bf72ed3a9632e0866f4cedd27f.zip
added crc-dabmod patch
Diffstat (limited to 'src/DabMod.cpp')
-rw-r--r--src/DabMod.cpp156
1 files changed, 129 insertions, 27 deletions
diff --git a/src/DabMod.cpp b/src/DabMod.cpp
index db0c712..f9bc3c9 100644
--- a/src/DabMod.cpp
+++ b/src/DabMod.cpp
@@ -2,6 +2,9 @@
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
Her Majesty the Queen in Right of Canada (Communications Research
Center Canada)
+
+ Includes modifications for which no copyright is claimed
+ 2012, Matthias P. Braendli, matthias.braendli@mpb.li
*/
/*
This file is part of CRC-DADMOD.
@@ -29,7 +32,9 @@
#include "DabModulator.h"
#include "InputMemory.h"
#include "OutputFile.h"
+#include "OutputUHD.h"
#include "PcDebug.h"
+#include "TimestampDecoder.h"
#include <complex>
#include <stdlib.h>
@@ -69,10 +74,14 @@ void printUsage(char* progName, FILE* out = stderr)
{
fprintf(out, "Usage:\n");
fprintf(out, "\t%s"
- " [input [output]]"
+ " [input]"
+ " (-f filename | -u uhddevice -F frequency) "
+ " [-G txgain]"
+ " [-o offset]"
+ " [-O offsetfile]"
+ " [-T filter_taps_file]"
" [-a amplitude]"
" [-c clockrate]"
- " [-f]"
" [-g gainMode]"
" [-h]"
" [-l]"
@@ -80,17 +89,23 @@ void printUsage(char* progName, FILE* out = stderr)
" [-r samplingRate]"
"\n", progName);
fprintf(out, "Where:\n");
- fprintf(out, "input: ETI input filename (default: stdin).\n");
- fprintf(out, "output: COFDM output filename (default: stdout).\n");
- fprintf(out, "-a: Apply amplitude gain.\n");
- fprintf(out, "-c: Set the DAC clock rate.\n");
- fprintf(out, "-f: (deprecated) Set fifo input.\n");
- fprintf(out, "-g: Set computation gain mode: "
+ fprintf(out, "input: ETI input filename (default: stdin).\n");
+ fprintf(out, "-f name: Use file output with given filename. (use /dev/stdout for standard output)\n");
+ fprintf(out, "-u device: Use UHD output with given device string. (use "" for default device)\n");
+ fprintf(out, "-F frequency: Set the transmit frequency when using UHD output. (mandatory option when using UHD)\n");
+ fprintf(out, "-G txgain: Set the transmit gain for the UHD driver (default: 0)\n");
+ fprintf(out, "-o: (UHD only) Set the timestamp offset added to the timestamp in the ETI. The offset is a double.\n");
+ fprintf(out, "-O: (UHD only) Set the file containing the timestamp offset added to the timestamp in the ETI. The file is read every six seconds, and must contain a double value.\n");
+ fprintf(out, " Specifying either -o or -O make DABMOD mute frames that do not contain a valid timestamp.\n");
+ fprintf(out, "-T taps_file: Enable filtering before the output, using the specified file containing the filter taps.\n");
+ fprintf(out, "-a gain: Apply digital amplitude gain.\n");
+ fprintf(out, "-c rate: Set the DAC clock rate and enable Cic Equalisation.\n");
+ fprintf(out, "-g: Set computation gain mode: "
"%u FIX, %u MAX, %u VAR\n", GAIN_FIX, GAIN_MAX, GAIN_VAR);
- fprintf(out, "-h: Print this help.\n");
- fprintf(out, "-l: Loop file when reach end of file.\n");
- fprintf(out, "-m: Set DAB mode: (0: auto, 1-4: force).\n");
- fprintf(out, "-r: Set output sampling rate (default: 2048000).\n");
+ fprintf(out, "-h: Print this help.\n");
+ fprintf(out, "-l: Loop file when reach end of file.\n");
+ fprintf(out, "-m mode: Set DAB mode: (0: auto, 1-4: force).\n");
+ fprintf(out, "-r rate: Set output sampling rate (default: 2048000).\n");
}
@@ -124,7 +139,15 @@ int main(int argc, char* argv[])
int ret = 0;
bool loop = false;
char* inputName;
+
char* outputName;
+ char* outputDevice;
+ int useFileOutput = 0;
+ int useUHDOutput = 0;
+ double uhdFrequency = 0.0;
+ int uhdTxGain = 0;
+ bool uhd_mute_no_timestamps = false;
+
FILE* inputFile = NULL;
uint32_t sync = 0;
uint32_t nbFrames = 0;
@@ -137,15 +160,26 @@ int main(int argc, char* argv[])
GainMode gainMode = GAIN_VAR;
Buffer data;
+ char* filterTapsFilename = NULL;
+
+ // To handle the timestamp offset of the modulator
+ struct modulator_offset_config modconf;
+ modconf.use_offset_file = false;
+ modconf.use_offset_fixed = false;
+
Flowgraph* flowgraph = NULL;
DabModulator* modulator = NULL;
InputMemory* input = NULL;
- OutputFile* output = NULL;
+ ModOutput* output = NULL;
signal(SIGINT, signalHandler);
+ // Set timezone to UTC
+ setenv("TZ", "", 1);
+ tzset();
+
while (true) {
- int c = getopt(argc, argv, "a:c:fg:hlm:r:V");
+ int c = getopt(argc, argv, "a:c:f:F:g:G:hlm:o:O:r:T:u:V");
if (c == -1) {
break;
}
@@ -157,20 +191,60 @@ int main(int argc, char* argv[])
clockRate = strtol(optarg, NULL, 0);
break;
case 'f':
- fprintf(stderr, "Option -f deprecated!\n");
+ if (useUHDOutput) {
+ fprintf(stderr, "Options -u and -f are mutually exclusive\n");
+ goto END_MAIN;
+ }
+ outputName = optarg;
+ useFileOutput = 1;
+ break;
+ case 'F':
+ uhdFrequency = strtof(optarg, NULL);
break;
case 'g':
gainMode = (GainMode)strtol(optarg, NULL, 0);
break;
+ case 'G':
+ uhdTxGain = (int)strtol(optarg, NULL, 10);
+ break;
case 'l':
loop = true;
break;
+ case 'o':
+ if (modconf.use_offset_file)
+ {
+ fprintf(stderr, "Options -o and -O are mutually exclusive\n");
+ goto END_MAIN;
+ }
+ modconf.use_offset_fixed = true;
+ modconf.offset_fixed = strtod(optarg, NULL);
+ break;
+ case 'O':
+ if (modconf.use_offset_fixed)
+ {
+ fprintf(stderr, "Options -o and -O are mutually exclusive\n");
+ goto END_MAIN;
+ }
+ modconf.use_offset_file = true;
+ modconf.offset_filename = optarg;
+ break;
case 'm':
dabMode = strtol(optarg, NULL, 0);
break;
case 'r':
outputRate = strtol(optarg, NULL, 0);
break;
+ case 'T':
+ filterTapsFilename = optarg;
+ break;
+ case 'u':
+ if (useFileOutput) {
+ fprintf(stderr, "Options -u and -f are mutually exclusive\n");
+ goto END_MAIN;
+ }
+ outputDevice = optarg;
+ useUHDOutput = 1;
+ break;
case 'V':
printVersion();
goto END_MAIN;
@@ -186,18 +260,22 @@ int main(int argc, char* argv[])
goto END_MAIN;
}
}
+
+ // When using offset, enable frame muting
+ uhd_mute_no_timestamps = (modconf.use_offset_file || modconf.use_offset_fixed);
+
+ if (!(modconf.use_offset_file || modconf.use_offset_fixed)) {
+ fprintf(stderr, "No Modulator offset defined, setting to 0\n");
+ modconf.use_offset_fixed = true;
+ modconf.offset_fixed = 0;
+ }
+
// Setting ETI input filename
if (optind < argc) {
inputName = argv[optind++];
} else {
inputName = (char*)"/dev/stdin";
}
- // Setting COFDM output filename
- if (optind < argc) {
- outputName = argv[optind++];
- } else {
- outputName = (char*)"/dev/stdout";
- }
// Checking unused arguments
if (optind != argc) {
fprintf(stderr, "Invalid arguments:");
@@ -210,15 +288,25 @@ int main(int argc, char* argv[])
goto END_MAIN;
}
+ if (!useFileOutput && !useUHDOutput) {
+ fprintf(stderr, "Must specify output !");
+ goto END_MAIN;
+ }
+
// Print settings
fprintf(stderr, "Input\n");
fprintf(stderr, " Name: %s\n", inputName);
fprintf(stderr, "Output\n");
- fprintf(stderr, " Name: %s\n", outputName);
+ if (useUHDOutput) {
+ fprintf(stderr, " UHD, Device: %s\n", outputDevice);
+ }
+ else if (useFileOutput) {
+ fprintf(stderr, " Name: %s\n", outputName);
+ }
fprintf(stderr, " Sampling rate: ");
if (outputRate > 1000) {
if (outputRate > 1000000) {
- fprintf(stderr, "%.3g mHz\n", outputRate / 1000000.0f);
+ fprintf(stderr, "%.3g MHz\n", outputRate / 1000000.0f);
} else {
fprintf(stderr, "%.3g kHz\n", outputRate / 1000.0f);
}
@@ -234,18 +322,32 @@ int main(int argc, char* argv[])
ret = -1;
goto END_MAIN;
}
- // Opening COFDM output file
- if (outputName != NULL) {
- output = new OutputFile(outputName);
+
+ if (useFileOutput) {
+ // Opening COFDM output file
+ if (outputName != NULL) {
+ fprintf(stderr, "Using file output\n");
+ output = new OutputFile(outputName);
+ }
+ }
+ else if (useUHDOutput) {
+ fprintf(stderr, "Using UHD output\n");
+ amplitude /= 32000.0f;
+ output = new OutputUHD(outputDevice, outputRate, uhdFrequency, uhdTxGain, uhd_mute_no_timestamps);
}
flowgraph = new Flowgraph();
data.setLength(6144);
input = new InputMemory(&data);
- modulator = new DabModulator(outputRate, clockRate, dabMode, gainMode, amplitude);
+ modulator = new DabModulator(modconf, outputRate, clockRate,
+ dabMode, gainMode, amplitude, filterTapsFilename);
flowgraph->connect(input, modulator);
flowgraph->connect(modulator, output);
+ if (useUHDOutput) {
+ ((OutputUHD*)output)->setETIReader(modulator->getEtiReader());
+ }
+
try {
while (running) {
enum EtiStreamType {