mirror of
https://github.com/vdr-projects/vdr.git
synced 2025-03-01 10:50:46 +00:00
162ed534b0
- Updated the required driver version in INSTALL (thanks to Jens Groth for reporting this one). - Fixed missing channel info after an incomplete channel group switch (thanks to Andreas Trauer). - Fixed handling a channels.conf that contains a ":@nnn" line as its last entry (thanks to Ralf Klueber). - Fixed detecting the /dev/videoN devices for GRAB in case there are others before the DVB devices (thanks to Andreas Kool). - Updated 'channels.conf.terr' for Berlin (thanks to Markus Hardt). - Fixed handling rc key learning in case cRemote::Initialize() returns 'false' (thanks to Oliver Endriss). - Fixed initializing the highlight area in cDvbSpuDecoder (thanks to Sven Goethel). - Now trying to get a timer's channel without RID when loading 'timers.conf' (thanks to Thomas Rausch). - Removed the unused 0x73 (TOT) filter in eit.c (thanks to Andreas Trauer). - Fixed extracting the ES data in cDvbDevice::StillPicture() (thanks to Stefan Huelswitt). - Added MPEG1 handling to cDvbDevice::StillPicture() (thanks to Thomas Heiligenmann). - Changed the default "Lifetime" to 99, which means that recordings will never be deleted automatically in case the disk runs full (suggested by Oliver Endriss). Note that in an existing VDR installation the current value as set in 'setup.conf' will still be used - this change only affects new VDR installations. - Edited recordings will now never be deleted automatically if the disk runs full (suggested by Emil Naepflein). - Channel IDs are now checked when reading 'channels.conf' to avoid later problems with timers.
500 lines
14 KiB
C
500 lines
14 KiB
C
/*
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* channels.c: Channel handling
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: channels.c 1.16 2003/10/17 15:42:40 kls Exp $
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*/
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#include "channels.h"
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#include <linux/dvb/frontend.h>
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#include <ctype.h>
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// IMPORTANT NOTE: in the 'sscanf()' calls there is a blank after the '%d'
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// format characters in order to allow any number of blanks after a numeric
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// value!
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// -- Channel Parameter Maps -------------------------------------------------
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const tChannelParameterMap InversionValues[] = {
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{ 0, INVERSION_OFF },
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{ 1, INVERSION_ON },
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{ 999, INVERSION_AUTO },
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{ -1 }
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};
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const tChannelParameterMap BandwidthValues[] = {
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{ 6, BANDWIDTH_6_MHZ },
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{ 7, BANDWIDTH_7_MHZ },
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{ 8, BANDWIDTH_8_MHZ },
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{ 999, BANDWIDTH_AUTO },
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{ -1 }
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};
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const tChannelParameterMap CoderateValues[] = {
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{ 0, FEC_NONE },
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{ 12, FEC_1_2 },
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{ 23, FEC_2_3 },
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{ 34, FEC_3_4 },
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{ 45, FEC_4_5 },
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{ 56, FEC_5_6 },
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{ 67, FEC_6_7 },
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{ 78, FEC_7_8 },
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{ 89, FEC_8_9 },
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{ 999, FEC_AUTO },
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{ -1 }
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};
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const tChannelParameterMap ModulationValues[] = {
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{ 0, QPSK },
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{ 16, QAM_16 },
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{ 32, QAM_32 },
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{ 64, QAM_64 },
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{ 128, QAM_128 },
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{ 256, QAM_256 },
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{ 999, QAM_AUTO },
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{ -1 }
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};
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const tChannelParameterMap TransmissionValues[] = {
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{ 2, TRANSMISSION_MODE_2K },
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{ 8, TRANSMISSION_MODE_8K },
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{ 999, TRANSMISSION_MODE_AUTO },
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{ -1 }
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};
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const tChannelParameterMap GuardValues[] = {
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{ 4, GUARD_INTERVAL_1_4 },
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{ 8, GUARD_INTERVAL_1_8 },
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{ 16, GUARD_INTERVAL_1_16 },
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{ 32, GUARD_INTERVAL_1_32 },
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{ 999, GUARD_INTERVAL_AUTO },
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{ -1 }
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};
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const tChannelParameterMap HierarchyValues[] = {
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{ 0, HIERARCHY_NONE },
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{ 1, HIERARCHY_1 },
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{ 2, HIERARCHY_2 },
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{ 4, HIERARCHY_4 },
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{ 999, HIERARCHY_AUTO },
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{ -1 }
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};
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int UserIndex(int Value, const tChannelParameterMap *Map)
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{
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const tChannelParameterMap *map = Map;
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while (map && map->userValue != -1) {
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if (map->userValue == Value)
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return map - Map;
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map++;
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}
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return -1;
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}
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int DriverIndex(int Value, const tChannelParameterMap *Map)
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{
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const tChannelParameterMap *map = Map;
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while (map && map->userValue != -1) {
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if (map->driverValue == Value)
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return map - Map;
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map++;
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}
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return -1;
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}
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int MapToUser(int Value, const tChannelParameterMap *Map)
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{
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int n = DriverIndex(Value, Map);
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if (n >= 0)
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return Map[n].userValue;
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return -1;
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}
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int MapToDriver(int Value, const tChannelParameterMap *Map)
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{
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int n = UserIndex(Value, Map);
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if (n >= 0)
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return Map[n].driverValue;
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return -1;
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}
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// -- tChannelID -------------------------------------------------------------
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const tChannelID tChannelID::InvalidID;
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bool tChannelID::operator== (const tChannelID &arg) const
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{
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return source == arg.source && nid == arg.nid && tid == arg.tid && sid == arg.sid && rid == arg.rid;
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}
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tChannelID tChannelID::FromString(const char *s)
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{
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char *sourcebuf = NULL;
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int nid;
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int tid;
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int sid;
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int rid = 0;
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int fields = sscanf(s, "%a[^-]-%d-%d-%d-%d", &sourcebuf, &nid, &tid, &sid, &rid);
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if (fields == 4 || fields == 5) {
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int source = cSource::FromString(sourcebuf);
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free(sourcebuf);
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if (source >= 0)
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return tChannelID(source, nid, tid, sid, rid);
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}
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return tChannelID::InvalidID;
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}
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const char *tChannelID::ToString(void)
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{
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static char buffer[256];
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snprintf(buffer, sizeof(buffer), rid ? "%s-%d-%d-%d-%d" : "%s-%d-%d-%d", cSource::ToString(source), nid, tid, sid, rid);
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return buffer;
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}
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// -- cChannel ---------------------------------------------------------------
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char *cChannel::buffer = NULL;
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cChannel::cChannel(void)
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{
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strcpy(name, "Pro7");
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frequency = 12480;
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source = cSource::FromString("S19.2E");
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srate = 27500;
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vpid = 255;
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ppid = 0;
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apid1 = 256;
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apid2 = 0;
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dpid1 = 257;
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dpid2 = 0;
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tpid = 32;
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ca = 0;
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nid = 0;
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tid = 0;
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sid = 888;
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rid = 0;
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number = 0;
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groupSep = false;
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polarization = 'v';
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inversion = INVERSION_AUTO;
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bandwidth = BANDWIDTH_AUTO;
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coderateH = FEC_AUTO;
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coderateL = FEC_AUTO;
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modulation = QAM_AUTO;
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transmission = TRANSMISSION_MODE_AUTO;
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guard = GUARD_INTERVAL_AUTO;
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hierarchy = HIERARCHY_AUTO;
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}
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cChannel& cChannel::operator= (const cChannel &Channel)
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{
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memcpy(&__BeginData__, &Channel.__BeginData__, (char *)&Channel.__EndData__ - (char *)&Channel.__BeginData__);
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return *this;
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}
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static int MHz(int frequency)
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{
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while (frequency > 20000)
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frequency /= 1000;
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return frequency;
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}
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tChannelID cChannel::GetChannelID(void) const
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{
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return tChannelID(source, nid, nid ? tid : MHz(frequency), sid, rid);
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}
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static int PrintParameter(char *p, char Name, int Value)
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{
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return Value >= 0 && Value != 999 ? sprintf(p, "%c%d", Name, Value) : 0;
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}
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const char *cChannel::ParametersToString(void)
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{
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char type = *cSource::ToString(source);
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if (isdigit(type))
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type = 'S';
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#define ST(s) if (strchr(s, type))
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static char buffer[64];
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char *q = buffer;
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*q = 0;
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ST(" S ") q += sprintf(q, "%c", polarization);
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ST("CST") q += PrintParameter(q, 'I', MapToUser(inversion, InversionValues));
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ST("CST") q += PrintParameter(q, 'C', MapToUser(coderateH, CoderateValues));
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ST(" T") q += PrintParameter(q, 'D', MapToUser(coderateL, CoderateValues));
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ST("C T") q += PrintParameter(q, 'M', MapToUser(modulation, ModulationValues));
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ST(" T") q += PrintParameter(q, 'B', MapToUser(bandwidth, BandwidthValues));
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ST(" T") q += PrintParameter(q, 'T', MapToUser(transmission, TransmissionValues));
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ST(" T") q += PrintParameter(q, 'G', MapToUser(guard, GuardValues));
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ST(" T") q += PrintParameter(q, 'Y', MapToUser(hierarchy, HierarchyValues));
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return buffer;
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}
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static const char *ParseParameter(const char *s, int &Value, const tChannelParameterMap *Map)
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{
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if (*++s) {
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char *p = NULL;
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errno = 0;
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int n = strtol(s, &p, 10);
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if (!errno && p != s) {
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Value = MapToDriver(n, Map);
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if (Value >= 0)
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return p;
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}
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}
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esyslog("ERROR: illegal value for parameter '%c'", *(s - 1));
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return NULL;
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}
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bool cChannel::StringToParameters(const char *s)
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{
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while (s && *s) {
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switch (toupper(*s)) {
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case 'B': s = ParseParameter(s, bandwidth, BandwidthValues); break;
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case 'C': s = ParseParameter(s, coderateH, CoderateValues); break;
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case 'D': s = ParseParameter(s, coderateL, CoderateValues); break;
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case 'G': s = ParseParameter(s, guard, GuardValues); break;
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case 'H': polarization = *s++; break;
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case 'I': s = ParseParameter(s, inversion, InversionValues); break;
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// 'L' reserved for possible circular polarization
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case 'M': s = ParseParameter(s, modulation, ModulationValues); break;
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// 'R' reserved for possible circular polarization
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case 'T': s = ParseParameter(s, transmission, TransmissionValues); break;
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case 'V': polarization = *s++; break;
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case 'Y': s = ParseParameter(s, hierarchy, HierarchyValues); break;
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default: esyslog("ERROR: unknown parameter key '%c'", *s);
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return false;
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}
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}
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return true;
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}
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const char *cChannel::ToText(cChannel *Channel)
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{
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char buf[MaxChannelName * 2];
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char *s = Channel->name;
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if (strchr(s, ':')) {
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s = strcpy(buf, s);
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strreplace(s, ':', '|');
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}
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free(buffer);
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if (Channel->groupSep) {
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if (Channel->number)
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asprintf(&buffer, ":@%d %s\n", Channel->number, s);
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else
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asprintf(&buffer, ":%s\n", s);
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}
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else {
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char vpidbuf[32];
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char *q = vpidbuf;
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q += snprintf(q, sizeof(vpidbuf), "%d", Channel->vpid);
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if (Channel->ppid)
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q += snprintf(q, sizeof(vpidbuf) - (q - vpidbuf), "+%d", Channel->ppid);
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*q = 0;
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char apidbuf[32];
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q = apidbuf;
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q += snprintf(q, sizeof(apidbuf), "%d", Channel->apid1);
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if (Channel->apid2)
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q += snprintf(q, sizeof(apidbuf) - (q - apidbuf), ",%d", Channel->apid2);
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if (Channel->dpid1 || Channel->dpid2)
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q += snprintf(q, sizeof(apidbuf) - (q - apidbuf), ";%d", Channel->dpid1);
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if (Channel->dpid2)
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q += snprintf(q, sizeof(apidbuf) - (q - apidbuf), ",%d", Channel->dpid2);
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*q = 0;
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asprintf(&buffer, "%s:%d:%s:%s:%d:%s:%s:%d:%d:%d:%d:%d:%d\n", s, Channel->frequency, Channel->ParametersToString(), cSource::ToString(Channel->source), Channel->srate, vpidbuf, apidbuf, Channel->tpid, Channel->ca, Channel->sid, Channel->nid, Channel->tid, Channel->rid);
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}
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return buffer;
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}
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const char *cChannel::ToText(void)
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{
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return ToText(this);
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}
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bool cChannel::Parse(const char *s, bool AllowNonUniqueID)
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{
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bool ok = true;
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if (*s == ':') {
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groupSep = true;
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if (*++s == '@' && *++s) {
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char *p = NULL;
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errno = 0;
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int n = strtol(s, &p, 10);
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if (!errno && p != s && n > 0) {
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number = n;
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s = p;
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}
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}
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strn0cpy(name, skipspace(s), MaxChannelName);
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}
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else {
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groupSep = false;
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char *namebuf = NULL;
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char *sourcebuf = NULL;
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char *parambuf = NULL;
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char *vpidbuf = NULL;
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char *apidbuf = NULL;
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int fields = sscanf(s, "%a[^:]:%d :%a[^:]:%a[^:] :%d :%a[^:]:%a[^:]:%d :%d :%d :%d :%d :%d ", &namebuf, &frequency, ¶mbuf, &sourcebuf, &srate, &vpidbuf, &apidbuf, &tpid, &ca, &sid, &nid, &tid, &rid);
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if (fields >= 9) {
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if (fields == 9) {
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// allow reading of old format
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sid = ca;
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ca = tpid;
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tpid = 0;
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}
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vpid = ppid = 0;
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apid1 = apid2 = 0;
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dpid1 = dpid2 = 0;
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ok = false;
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if (parambuf && sourcebuf && vpidbuf && apidbuf) {
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ok = StringToParameters(parambuf) && (source = cSource::FromString(sourcebuf)) >= 0;
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char *p = strchr(vpidbuf, '+');
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if (p)
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*p++ = 0;
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sscanf(vpidbuf, "%d", &vpid);
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if (p)
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sscanf(p, "%d", &ppid);
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p = strchr(apidbuf, ';');
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if (p)
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*p++ = 0;
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sscanf(apidbuf, "%d ,%d ", &apid1, &apid2);
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if (p)
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sscanf(p, "%d ,%d ", &dpid1, &dpid2);
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}
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strn0cpy(name, namebuf, MaxChannelName);
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free(parambuf);
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free(sourcebuf);
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free(vpidbuf);
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free(apidbuf);
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free(namebuf);
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if (!GetChannelID().Valid()) {
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esyslog("ERROR: channel data results in invalid ID!");
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return false;
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}
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if (!AllowNonUniqueID && Channels.GetByChannelID(GetChannelID())) {
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esyslog("ERROR: channel data not unique!");
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return false;
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}
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}
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else
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return false;
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}
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strreplace(name, '|', ':');
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return ok;
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}
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bool cChannel::Save(FILE *f)
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{
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return fprintf(f, ToText()) > 0;
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}
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// -- cChannels --------------------------------------------------------------
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cChannels Channels;
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bool cChannels::Load(const char *FileName, bool AllowComments, bool MustExist)
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{
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if (cConfig<cChannel>::Load(FileName, AllowComments, MustExist)) {
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ReNumber();
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return true;
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}
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return false;
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}
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int cChannels::GetNextGroup(int Idx)
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{
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cChannel *channel = Get(++Idx);
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while (channel && !(channel->GroupSep() && *channel->Name()))
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channel = Get(++Idx);
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return channel ? Idx : -1;
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}
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int cChannels::GetPrevGroup(int Idx)
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{
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cChannel *channel = Get(--Idx);
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while (channel && !(channel->GroupSep() && *channel->Name()))
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channel = Get(--Idx);
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return channel ? Idx : -1;
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}
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int cChannels::GetNextNormal(int Idx)
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{
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cChannel *channel = Get(++Idx);
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while (channel && channel->GroupSep())
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channel = Get(++Idx);
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return channel ? Idx : -1;
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}
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void cChannels::ReNumber( void )
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{
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int Number = 1;
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for (cChannel *channel = First(); channel; channel = Next(channel)) {
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if (channel->GroupSep()) {
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if (channel->Number() > Number)
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Number = channel->Number();
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}
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else {
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maxNumber = Number;
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channel->SetNumber(Number++);
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}
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}
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}
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cChannel *cChannels::GetByNumber(int Number, int SkipGap)
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{
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cChannel *previous = NULL;
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for (cChannel *channel = First(); channel; channel = Next(channel)) {
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if (!channel->GroupSep()) {
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if (channel->Number() == Number)
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return channel;
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else if (SkipGap && channel->Number() > Number)
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return SkipGap > 0 ? channel : previous;
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previous = channel;
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}
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}
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return NULL;
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}
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cChannel *cChannels::GetByServiceID(int Source, unsigned short ServiceID)
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{
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for (cChannel *channel = First(); channel; channel = Next(channel)) {
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if (!channel->GroupSep() && channel->Source() == Source && channel->Sid() == ServiceID)
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return channel;
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}
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return NULL;
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}
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cChannel *cChannels::GetByChannelID(tChannelID ChannelID, bool TryWithoutRid)
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{
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for (cChannel *channel = First(); channel; channel = Next(channel)) {
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if (!channel->GroupSep() && channel->GetChannelID() == ChannelID)
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return channel;
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}
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if (TryWithoutRid) {
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ChannelID.ClrRid();
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for (cChannel *channel = First(); channel; channel = Next(channel)) {
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if (!channel->GroupSep() && channel->GetChannelID().ClrRid() == ChannelID)
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return channel;
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}
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}
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return NULL;
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}
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bool cChannels::HasUniqueChannelID(cChannel *NewChannel, cChannel *OldChannel)
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{
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tChannelID NewChannelID = NewChannel->GetChannelID();
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for (cChannel *channel = First(); channel; channel = Next(channel)) {
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if (!channel->GroupSep() && channel != OldChannel && channel->GetChannelID() == NewChannelID)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool cChannels::SwitchTo(int Number)
|
|
{
|
|
cChannel *channel = GetByNumber(Number);
|
|
return channel && cDevice::PrimaryDevice()->SwitchChannel(channel, true);
|
|
}
|