197 lines
7.1 KiB
C
197 lines
7.1 KiB
C
/*
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* param.c: SAT>IP plugin for the Video Disk Recorder
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*
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* See the README file for copyright information and how to reach the author.
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*
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*/
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#include <ctype.h>
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#include <vdr/dvbdevice.h>
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#include "common.h"
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#include "param.h"
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// --- cSatipParameterMaps ----------------------------------------------------
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struct tSatipParameterMap {
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int driverValue;
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const char *satipString;
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};
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static const tSatipParameterMap SatipBandwidthValues[] = {
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{ 5000000, "&bw=5" },
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{ 6000000, "&bw=6" },
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{ 7000000, "&bw=7" },
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{ 8000000, "&bw=8" },
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{ 10000000, "&bw=10" },
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{ 1712000, "&bw=1.712" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipPilotValues[] = {
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{ PILOT_OFF, "&plts=off" },
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{ PILOT_ON, "&plts=on" },
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{ PILOT_AUTO, "" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipSisoMisoValues[] = {
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{ 0, "&sm=0" },
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{ 1, "&sm=1" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipCodeRateValues[] = {
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{ FEC_NONE, "" },
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{ FEC_1_2, "&fec=12" },
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{ FEC_2_3, "&fec=23" },
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{ FEC_3_4, "&fec=34" },
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{ FEC_3_5, "&fec=35" },
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{ FEC_4_5, "&fec=45" },
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{ FEC_5_6, "&fec=56" },
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{ FEC_6_7, "&fec=67" },
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{ FEC_7_8, "&fec=78" },
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{ FEC_8_9, "&fec=89" },
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{ FEC_9_10, "&fec=910" },
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{ FEC_AUTO, "" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipModulationValues[] = {
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{ QPSK, "&mtype=qpsk" },
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{ PSK_8, "&mtype=8psk" },
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{ QAM_16, "&mtype=16qam" },
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{ QAM_64, "&mtype=64qam" },
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{ QAM_128, "&mtype=128qam" },
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{ QAM_256, "&mtype=256qam" },
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{ QAM_AUTO, "" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipSystemValuesSat[] = {
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{ 0, "&msys=dvbs" },
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{ 1, "&msys=dvbs2" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipSystemValuesTerrestrial[] = {
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{ 0, "&msys=dvbt" },
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{ 1, "&msys=dvbt2" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipSystemValuesCable[] = {
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{ 0, "&msys=dvbc" },
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{ 1, "&msys=dvbc2" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipTransmissionValues[] = {
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{ TRANSMISSION_MODE_1K, "&tmode=1k" },
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{ TRANSMISSION_MODE_2K, "&tmode=2k" },
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{ TRANSMISSION_MODE_4K, "&tmode=4k" },
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{ TRANSMISSION_MODE_8K, "&tmode=8k" },
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{ TRANSMISSION_MODE_16K, "&tmode=16k" },
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{ TRANSMISSION_MODE_32K, "&tmode=32k" },
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{ TRANSMISSION_MODE_AUTO, "" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipGuardValues[] = {
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{ GUARD_INTERVAL_1_4, "&gi=14" },
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{ GUARD_INTERVAL_1_8, "&gi=18" },
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{ GUARD_INTERVAL_1_16, "&gi=116" },
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{ GUARD_INTERVAL_1_32, "&gi=132" },
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{ GUARD_INTERVAL_1_128, "&gi=1128" },
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{ GUARD_INTERVAL_19_128, "&gi=19128" },
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{ GUARD_INTERVAL_19_256, "&gi=19256" },
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{ GUARD_INTERVAL_AUTO, "" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipRollOffValues[] = {
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{ ROLLOFF_AUTO, "" },
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{ ROLLOFF_20, "&ro=0.20" },
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{ ROLLOFF_25, "&ro=0.25" },
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{ ROLLOFF_35, "&ro=0.35" },
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{ -1, NULL }
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};
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static const tSatipParameterMap SatipInversionValues[] = {
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{ INVERSION_AUTO, "" },
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{ INVERSION_OFF, "&specinv=0" },
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{ INVERSION_ON, "&specinv=1" },
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{ -1, NULL }
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};
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static int SatipUserIndex(int valueP, const tSatipParameterMap *mapP)
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{
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const tSatipParameterMap *map = mapP;
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while (map && map->driverValue != -1) {
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if (map->driverValue == valueP)
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return map - mapP;
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map++;
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}
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return -1;
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}
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static int PrintUrlString(char *bufP, int lenP, int valueP, const tSatipParameterMap *mapP)
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{
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int n = SatipUserIndex(valueP, mapP);
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return ((n >= 0) && (lenP > 0)) ? snprintf(bufP, lenP, "%s", mapP[n].satipString) : 0;
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}
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cString GetTransponderUrlParameters(const cChannel *channelP)
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{
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if (channelP) {
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char buffer[255];
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cDvbTransponderParameters dtp(channelP->Parameters());
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int DataSlice = 0;
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int C2TuningFrequencyType = 0;
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float freq = channelP->Frequency();
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char type = cSource::ToChar(channelP->Source());
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cSource *source = Sources.Get(channelP->Source());
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int src = (strchr("S", type) && source) ? atoi(source->Description()) : 1;
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char *q = buffer;
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*q = 0;
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// Scale down frequencies to MHz
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while (freq > 20000L)
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freq /= 1000L;
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#define ST(s) if (strchr(s, type) && (strchr(s, '0' + dtp.System() + 1) || strchr(s, '*')))
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#define STBUFLEFT (sizeof(buffer) - (q - buffer))
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ST(" S 1") { // to comply with SAT>IP protocol specification 1.2.2
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dtp.SetPilot(PILOT_OFF);
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dtp.SetModulation(QPSK);
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dtp.SetRollOff(ROLLOFF_35);
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}
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if ((channelP->Rid() % 100) > 0)
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q += snprintf(q, STBUFLEFT, "&fe=%d", channelP->Rid() % 100);
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ST(" S *") q += snprintf(q, STBUFLEFT, "src=%d&", ((src > 0) && (src <= 255)) ? src : 1);
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q += snprintf(q, STBUFLEFT, "freq=%s", *dtoa(freq, "%lg"));
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ST(" S *") q += snprintf(q, STBUFLEFT, "&pol=%c", tolower(dtp.Polarization()));
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ST(" S *") q += PrintUrlString(q, STBUFLEFT, dtp.RollOff(), SatipRollOffValues);
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ST("C 2") q += snprintf(q, STBUFLEFT, "&c2tft=%d", C2TuningFrequencyType);
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ST(" T*") q += PrintUrlString(q, STBUFLEFT, dtp.Bandwidth(), SatipBandwidthValues);
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ST("C 2") q += PrintUrlString(q, STBUFLEFT, dtp.Bandwidth(), SatipBandwidthValues);
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ST(" S *") q += PrintUrlString(q, STBUFLEFT, dtp.System(), SatipSystemValuesSat);
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ST("C *") q += PrintUrlString(q, STBUFLEFT, dtp.System(), SatipSystemValuesCable);
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ST(" T*") q += PrintUrlString(q, STBUFLEFT, dtp.System(), SatipSystemValuesTerrestrial);
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ST(" T*") q += PrintUrlString(q, STBUFLEFT, dtp.Transmission(), SatipTransmissionValues);
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ST(" S *") q += PrintUrlString(q, STBUFLEFT, dtp.Modulation(), SatipModulationValues);
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ST(" T*") q += PrintUrlString(q, STBUFLEFT, dtp.Modulation(), SatipModulationValues);
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ST("C 1") q += PrintUrlString(q, STBUFLEFT, dtp.Modulation(), SatipModulationValues);
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ST(" S *") q += PrintUrlString(q, STBUFLEFT, dtp.Pilot(), SatipPilotValues);
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ST(" S *") q += snprintf(q, STBUFLEFT, "&sr=%d", channelP->Srate());
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ST("C 1") q += snprintf(q, STBUFLEFT, "&sr=%d", channelP->Srate());
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ST(" T*") q += PrintUrlString(q, STBUFLEFT, dtp.Guard(), SatipGuardValues);
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ST("CST*") q += PrintUrlString(q, STBUFLEFT, dtp.CoderateH(), SatipCodeRateValues);
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ST("C 2") q += snprintf(q, STBUFLEFT, "&ds=%d", DataSlice);
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ST("C T2") q += snprintf(q, STBUFLEFT, "&plp=%d", dtp.StreamId());
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ST(" T2") q += snprintf(q, STBUFLEFT, "&t2id=%d", dtp.T2SystemId());
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ST(" T2") q += PrintUrlString(q, STBUFLEFT, dtp.SisoMiso(), SatipSisoMisoValues);
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ST("C 1") q += PrintUrlString(q, STBUFLEFT, dtp.Inversion(), SatipInversionValues);
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#undef ST
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return buffer;
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}
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return NULL;
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}
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