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vdr/dvbdevice.c
Klaus Schmidinger c37734080c Version 1.3.41 
- EPG events from epg.data or SVDRP's PUTE command now have their Title set to
  "No Title" if none was set.
- Fixed checking toFile in cCuttingThread::Action() (found in a larger patch from
  Artur Skawina).
- Fixed a crash when pressing '0' in the "Schedule" menu on a channel that doesn't
  have any EPG data (reported ny Alexander Hans).
- Updated the Danish OSD texts (thanks to Mogens Elneff).
- Fixed a missing ',' in the Greek OSD texts (thanks to Arthur Konovalov).
- Updated the Estonian OSD texts (thanks to Arthur Konovalov).
- Fixed handling the tfRecording flag when reading timers (bug reported by Andreas
  Mair).
- Now checking whether the channel exists before setting the PMT filter in
  cPatFilter::Process() (thanks to Thomas Bergwinkl).
- Now trying to reestablish the connection to the LIRC daemon in case it breaks
  (thanks to Ville Skyttä).
- Updated the Finnish OSD texts (thanks to Rolf Ahrenberg).
- Fixed channel switching with the Down (Up) key in case the current channel is
  already the first (last) in the list (reported by Frank Krömmelbein).
- Removed the "buffer reserve" in Transfer Mode - it's no longer necessary with
  recent driver/firmware versions.
- The epg.data file is now written when VDR exits (suggested by Daniel Karsubka).
- Fixed cTimers::GetNextActiveTimer() so that it won't return an expired timer
  (reported by Rolf Ahrenberg).
- Changed DVBS_TUNE_TIMEOUT and DVBC_TUNE_TIMEOUT to 9000ms to avoid problems with
  channels that have low symbol rates (reported by Suur Karu).
- Fixed displaying the current audio track in the channel display.
- When reading epg.data (or data from PUTE), the version number of events with
  table IDs smaller than 0x50 is now ignored because otherwise the current
  running status would not be set after a restart of VDR.
- Implemented a timeout for remote controls that don't deliver "repeat" keypresses
  very fast (based on a suggestion by Luca Olivetti; problem with the new handling
  of k_Repeat keypresses in channel switching reported by Udo Richter).
- When looking for the present or following EPG event, the running status is now
  always taken into account.
- Now initializing the channels' schedule pointers when reading the epg.data file,
  so that the first WhatsOn menu will come up faster.
- If a shutdown is requested, but the shutdown script doesn't actually halt the
  system, it is now tried again after 5 minutes (suggested by Helmut Auer).
- Separated the 'install' target into several individual targets; renamed the
  'plugins-install' target to 'install-plugins' (thanks to Helmut Auer).
2006-01-29 18:00:00 +01:00

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/*
* dvbdevice.c: The DVB device interface
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: dvbdevice.c 1.151 2006/01/28 15:37:01 kls Exp $
*/
#include "dvbdevice.h"
#include <errno.h>
#include <limits.h>
#include <linux/videodev.h>
#include <linux/dvb/audio.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/video.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include "channels.h"
#include "diseqc.h"
#include "dvbosd.h"
#include "eitscan.h"
#include "player.h"
#include "receiver.h"
#include "status.h"
#include "transfer.h"
#define DO_REC_AND_PLAY_ON_PRIMARY_DEVICE 1
#define DO_MULTIPLE_RECORDINGS 1
//#define DO_MULTIPLE_CA_CHANNELS
#define DEV_VIDEO "/dev/video"
#define DEV_DVB_ADAPTER "/dev/dvb/adapter"
#define DEV_DVB_OSD "osd"
#define DEV_DVB_FRONTEND "frontend"
#define DEV_DVB_DVR "dvr"
#define DEV_DVB_DEMUX "demux"
#define DEV_DVB_VIDEO "video"
#define DEV_DVB_AUDIO "audio"
#define DEV_DVB_CA "ca"
#define DVBS_TUNE_TIMEOUT 9000 //ms
#define DVBS_LOCK_TIMEOUT 2000 //ms
#define DVBC_TUNE_TIMEOUT 9000 //ms
#define DVBC_LOCK_TIMEOUT 2000 //ms
#define DVBT_TUNE_TIMEOUT 9000 //ms
#define DVBT_LOCK_TIMEOUT 2000 //ms
class cDvbName {
private:
char buffer[PATH_MAX];
public:
cDvbName(const char *Name, int n) {
snprintf(buffer, sizeof(buffer), "%s%d/%s%d", DEV_DVB_ADAPTER, n, Name, 0);
}
const char *operator*() { return buffer; }
};
static int DvbOpen(const char *Name, int n, int Mode, bool ReportError = false)
{
const char *FileName = *cDvbName(Name, n);
int fd = open(FileName, Mode);
if (fd < 0 && ReportError)
LOG_ERROR_STR(FileName);
return fd;
}
// --- cDvbTuner -------------------------------------------------------------
class cDvbTuner : public cThread {
private:
enum eTunerStatus { tsIdle, tsSet, tsTuned, tsLocked };
int fd_frontend;
int cardIndex;
int tuneTimeout;
int lockTimeout;
time_t lastTimeoutReport;
fe_type_t frontendType;
cCiHandler *ciHandler;
cChannel channel;
const char *diseqcCommands;
eTunerStatus tunerStatus;
cMutex mutex;
cCondVar locked;
cCondVar newSet;
bool GetFrontendStatus(fe_status_t &Status, int TimeoutMs = 0);
bool SetFrontend(void);
virtual void Action(void);
public:
cDvbTuner(int Fd_Frontend, int CardIndex, fe_type_t FrontendType, cCiHandler *CiHandler);
virtual ~cDvbTuner();
bool IsTunedTo(const cChannel *Channel) const;
void Set(const cChannel *Channel, bool Tune);
bool Locked(int TimeoutMs = 0);
};
cDvbTuner::cDvbTuner(int Fd_Frontend, int CardIndex, fe_type_t FrontendType, cCiHandler *CiHandler)
{
fd_frontend = Fd_Frontend;
cardIndex = CardIndex;
frontendType = FrontendType;
ciHandler = CiHandler;
tuneTimeout = 0;
lockTimeout = 0;
lastTimeoutReport = 0;
diseqcCommands = NULL;
tunerStatus = tsIdle;
if (frontendType == FE_QPSK)
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); // must explicitly turn on LNB power
SetDescription("tuner on device %d", cardIndex + 1);
Start();
}
cDvbTuner::~cDvbTuner()
{
tunerStatus = tsIdle;
newSet.Broadcast();
locked.Broadcast();
Cancel(3);
}
bool cDvbTuner::IsTunedTo(const cChannel *Channel) const
{
return tunerStatus != tsIdle && channel.Source() == Channel->Source() && channel.Transponder() == Channel->Transponder();
}
void cDvbTuner::Set(const cChannel *Channel, bool Tune)
{
cMutexLock MutexLock(&mutex);
if (Tune)
tunerStatus = tsSet;
channel = *Channel;
lastTimeoutReport = 0;
newSet.Broadcast();
}
bool cDvbTuner::Locked(int TimeoutMs)
{
bool isLocked = (tunerStatus >= tsLocked);
if (isLocked || !TimeoutMs)
return isLocked;
cMutexLock MutexLock(&mutex);
if (TimeoutMs && tunerStatus < tsLocked)
locked.TimedWait(mutex, TimeoutMs);
return tunerStatus >= tsLocked;
}
bool cDvbTuner::GetFrontendStatus(fe_status_t &Status, int TimeoutMs)
{
if (TimeoutMs) {
cPoller Poller(fd_frontend);
if (Poller.Poll(TimeoutMs)) {
dvb_frontend_event Event;
while (ioctl(fd_frontend, FE_GET_EVENT, &Event) == 0)
; // just to clear the event queue - we'll read the actual status below
}
}
do {
int stat = ioctl(fd_frontend, FE_READ_STATUS, &Status);
if (stat == 0)
return true;
if (stat < 0) {
if (errno == EINTR)
continue;
}
} while (0);
return false;
}
static unsigned int FrequencyToHz(unsigned int f)
{
while (f && f < 1000000)
f *= 1000;
return f;
}
bool cDvbTuner::SetFrontend(void)
{
dvb_frontend_parameters Frontend;
memset(&Frontend, 0, sizeof(Frontend));
switch (frontendType) {
case FE_QPSK: { // DVB-S
unsigned int frequency = channel.Frequency();
if (Setup.DiSEqC) {
cDiseqc *diseqc = Diseqcs.Get(channel.Source(), channel.Frequency(), channel.Polarization());
if (diseqc) {
if (diseqc->Commands() && (!diseqcCommands || strcmp(diseqcCommands, diseqc->Commands()) != 0)) {
cDiseqc::eDiseqcActions da;
for (char *CurrentAction = NULL; (da = diseqc->Execute(&CurrentAction)) != cDiseqc::daNone; ) {
switch (da) {
case cDiseqc::daNone: break;
case cDiseqc::daToneOff: CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_OFF)); break;
case cDiseqc::daToneOn: CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_ON)); break;
case cDiseqc::daVoltage13: CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); break;
case cDiseqc::daVoltage18: CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_18)); break;
case cDiseqc::daMiniA: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_A)); break;
case cDiseqc::daMiniB: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_B)); break;
case cDiseqc::daCodes: {
int n = 0;
uchar *codes = diseqc->Codes(n);
if (codes) {
struct dvb_diseqc_master_cmd cmd;
memcpy(cmd.msg, codes, min(n, int(sizeof(cmd.msg))));
cmd.msg_len = n;
CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd));
}
}
break;
}
}
diseqcCommands = diseqc->Commands();
}
frequency -= diseqc->Lof();
}
else {
esyslog("ERROR: no DiSEqC parameters found for channel %d", channel.Number());
return false;
}
}
else {
int tone = SEC_TONE_OFF;
if (frequency < (unsigned int)Setup.LnbSLOF) {
frequency -= Setup.LnbFrequLo;
tone = SEC_TONE_OFF;
}
else {
frequency -= Setup.LnbFrequHi;
tone = SEC_TONE_ON;
}
int volt = (channel.Polarization() == 'v' || channel.Polarization() == 'V' || channel.Polarization() == 'r' || channel.Polarization() == 'R') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18;
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, volt));
CHECK(ioctl(fd_frontend, FE_SET_TONE, tone));
}
frequency = abs(frequency); // Allow for C-band, where the frequency is less than the LOF
Frontend.frequency = frequency * 1000UL;
Frontend.inversion = fe_spectral_inversion_t(channel.Inversion());
Frontend.u.qpsk.symbol_rate = channel.Srate() * 1000UL;
Frontend.u.qpsk.fec_inner = fe_code_rate_t(channel.CoderateH());
tuneTimeout = DVBS_TUNE_TIMEOUT;
lockTimeout = DVBS_LOCK_TIMEOUT;
}
break;
case FE_QAM: { // DVB-C
// Frequency and symbol rate:
Frontend.frequency = FrequencyToHz(channel.Frequency());
Frontend.inversion = fe_spectral_inversion_t(channel.Inversion());
Frontend.u.qam.symbol_rate = channel.Srate() * 1000UL;
Frontend.u.qam.fec_inner = fe_code_rate_t(channel.CoderateH());
Frontend.u.qam.modulation = fe_modulation_t(channel.Modulation());
tuneTimeout = DVBC_TUNE_TIMEOUT;
lockTimeout = DVBC_LOCK_TIMEOUT;
}
break;
case FE_OFDM: { // DVB-T
// Frequency and OFDM paramaters:
Frontend.frequency = FrequencyToHz(channel.Frequency());
Frontend.inversion = fe_spectral_inversion_t(channel.Inversion());
Frontend.u.ofdm.bandwidth = fe_bandwidth_t(channel.Bandwidth());
Frontend.u.ofdm.code_rate_HP = fe_code_rate_t(channel.CoderateH());
Frontend.u.ofdm.code_rate_LP = fe_code_rate_t(channel.CoderateL());
Frontend.u.ofdm.constellation = fe_modulation_t(channel.Modulation());
Frontend.u.ofdm.transmission_mode = fe_transmit_mode_t(channel.Transmission());
Frontend.u.ofdm.guard_interval = fe_guard_interval_t(channel.Guard());
Frontend.u.ofdm.hierarchy_information = fe_hierarchy_t(channel.Hierarchy());
tuneTimeout = DVBT_TUNE_TIMEOUT;
lockTimeout = DVBT_LOCK_TIMEOUT;
}
break;
default:
esyslog("ERROR: attempt to set channel with unknown DVB frontend type");
return false;
}
if (ioctl(fd_frontend, FE_SET_FRONTEND, &Frontend) < 0) {
esyslog("ERROR: frontend %d: %m", cardIndex);
return false;
}
return true;
}
void cDvbTuner::Action(void)
{
cTimeMs Timer;
bool LostLock = false;
fe_status_t Status = (fe_status_t)0;
while (Running()) {
fe_status_t NewStatus;
if (GetFrontendStatus(NewStatus, 10))
Status = NewStatus;
cMutexLock MutexLock(&mutex);
switch (tunerStatus) {
case tsIdle:
break;
case tsSet:
tunerStatus = SetFrontend() ? tsTuned : tsIdle;
Timer.Set(tuneTimeout);
continue;
case tsTuned:
if (Timer.TimedOut()) {
tunerStatus = tsSet;
diseqcCommands = NULL;
if (time(NULL) - lastTimeoutReport > 60) { // let's not get too many of these
isyslog("frontend %d timed out while tuning to channel %d, tp %d", cardIndex, channel.Number(), channel.Transponder());
lastTimeoutReport = time(NULL);
}
continue;
}
case tsLocked:
if (Status & FE_REINIT) {
tunerStatus = tsSet;
diseqcCommands = NULL;
isyslog("frontend %d was reinitialized", cardIndex);
lastTimeoutReport = 0;
continue;
}
else if (Status & FE_HAS_LOCK) {
if (LostLock) {
isyslog("frontend %d regained lock on channel %d, tp %d", cardIndex, channel.Number(), channel.Transponder());
LostLock = false;
}
tunerStatus = tsLocked;
locked.Broadcast();
lastTimeoutReport = 0;
}
else if (tunerStatus == tsLocked) {
LostLock = true;
isyslog("frontend %d lost lock on channel %d, tp %d", cardIndex, channel.Number(), channel.Transponder());
tunerStatus = tsTuned;
Timer.Set(lockTimeout);
lastTimeoutReport = 0;
continue;
}
}
if (ciHandler)
ciHandler->Process();
if (tunerStatus != tsTuned)
newSet.TimedWait(mutex, 1000);
}
}
// --- cDvbDevice ------------------------------------------------------------
int cDvbDevice::devVideoOffset = -1;
bool cDvbDevice::setTransferModeForDolbyDigital = true;
cDvbDevice::cDvbDevice(int n)
{
dvbTuner = NULL;
frontendType = fe_type_t(-1); // don't know how else to initialize this - there is no FE_UNKNOWN
spuDecoder = NULL;
digitalAudio = false;
playMode = pmNone;
// Devices that are present on all card types:
int fd_frontend = DvbOpen(DEV_DVB_FRONTEND, n, O_RDWR | O_NONBLOCK);
// Devices that are only present on cards with decoders:
fd_osd = DvbOpen(DEV_DVB_OSD, n, O_RDWR);
fd_video = DvbOpen(DEV_DVB_VIDEO, n, O_RDWR | O_NONBLOCK);
fd_audio = DvbOpen(DEV_DVB_AUDIO, n, O_RDWR | O_NONBLOCK);
fd_stc = DvbOpen(DEV_DVB_DEMUX, n, O_RDWR);
// The DVR device (will be opened and closed as needed):
fd_dvr = -1;
// The offset of the /dev/video devices:
if (devVideoOffset < 0) { // the first one checks this
FILE *f = NULL;
char buffer[PATH_MAX];
for (int ofs = 0; ofs < 100; ofs++) {
snprintf(buffer, sizeof(buffer), "/proc/video/dev/video%d", ofs);
if ((f = fopen(buffer, "r")) != NULL) {
if (fgets(buffer, sizeof(buffer), f)) {
if (strstr(buffer, "DVB Board")) { // found the _first_ DVB card
devVideoOffset = ofs;
dsyslog("video device offset is %d", devVideoOffset);
break;
}
}
else
break;
fclose(f);
}
else
break;
}
if (devVideoOffset < 0)
devVideoOffset = 0;
if (f)
fclose(f);
}
devVideoIndex = (devVideoOffset >= 0 && HasDecoder()) ? devVideoOffset++ : -1;
// Video format:
SetVideoFormat(Setup.VideoFormat);
// We only check the devices that must be present - the others will be checked before accessing them://XXX
if (fd_frontend >= 0) {
dvb_frontend_info feinfo;
if (ioctl(fd_frontend, FE_GET_INFO, &feinfo) >= 0) {
frontendType = feinfo.type;
ciHandler = cCiHandler::CreateCiHandler(*cDvbName(DEV_DVB_CA, n));
dvbTuner = new cDvbTuner(fd_frontend, CardIndex(), frontendType, ciHandler);
}
else
LOG_ERROR;
}
else
esyslog("ERROR: can't open DVB device %d", n);
StartSectionHandler();
}
cDvbDevice::~cDvbDevice()
{
delete spuDecoder;
delete dvbTuner;
// We're not explicitly closing any device files here, since this sometimes
// caused segfaults. Besides, the program is about to terminate anyway...
}
bool cDvbDevice::Probe(const char *FileName)
{
if (access(FileName, F_OK) == 0) {
dsyslog("probing %s", FileName);
int f = open(FileName, O_RDONLY);
if (f >= 0) {
close(f);
return true;
}
else if (errno != ENODEV && errno != EINVAL)
LOG_ERROR_STR(FileName);
}
else if (errno != ENOENT)
LOG_ERROR_STR(FileName);
return false;
}
bool cDvbDevice::Initialize(void)
{
int found = 0;
int i;
for (i = 0; i < MAXDVBDEVICES; i++) {
if (UseDevice(NextCardIndex())) {
if (Probe(*cDvbName(DEV_DVB_FRONTEND, i))) {
new cDvbDevice(i);
found++;
}
else
break;
}
else
NextCardIndex(1); // skips this one
}
NextCardIndex(MAXDVBDEVICES - i); // skips the rest
if (found > 0)
isyslog("found %d video device%s", found, found > 1 ? "s" : "");
else
isyslog("no DVB device found");
return found > 0;
}
void cDvbDevice::MakePrimaryDevice(bool On)
{
if (HasDecoder())
new cDvbOsdProvider(fd_osd);
}
bool cDvbDevice::HasDecoder(void) const
{
return fd_video >= 0 && fd_audio >= 0;
}
bool cDvbDevice::Ready(void)
{
if (ciHandler) {
ciHandler->Process();
return ciHandler->Ready();
}
return true;
}
int cDvbDevice::ProvidesCa(const cChannel *Channel) const
{
int NumCams = 0;
if (ciHandler) {
NumCams = ciHandler->NumCams();
if (Channel->Ca() >= CA_ENCRYPTED_MIN) {
unsigned short ids[MAXCAIDS + 1];
for (int i = 0; i <= MAXCAIDS; i++) // '<=' copies the terminating 0!
ids[i] = Channel->Ca(i);
if (ciHandler->ProvidesCa(ids))
return NumCams + 1;
}
}
int result = cDevice::ProvidesCa(Channel);
if (result > 0)
result += NumCams;
return result;
}
cSpuDecoder *cDvbDevice::GetSpuDecoder(void)
{
if (!spuDecoder && IsPrimaryDevice())
spuDecoder = new cDvbSpuDecoder();
return spuDecoder;
}
uchar *cDvbDevice::GrabImage(int &Size, bool Jpeg, int Quality, int SizeX, int SizeY)
{
if (devVideoIndex < 0)
return NULL;
char buffer[PATH_MAX];
snprintf(buffer, sizeof(buffer), "%s%d", DEV_VIDEO, devVideoIndex);
int videoDev = open(buffer, O_RDWR);
if (videoDev >= 0) {
uchar *result = NULL;
struct video_mbuf mbuf;
if (ioctl(videoDev, VIDIOCGMBUF, &mbuf) == 0) {
int msize = mbuf.size;
unsigned char *mem = (unsigned char *)mmap(0, msize, PROT_READ | PROT_WRITE, MAP_SHARED, videoDev, 0);
if (mem && mem != (unsigned char *)-1) {
// set up the size and RGB
struct video_capability vc;
if (ioctl(videoDev, VIDIOCGCAP, &vc) == 0) {
struct video_mmap vm;
vm.frame = 0;
if ((SizeX > 0) && (SizeX <= vc.maxwidth) &&
(SizeY > 0) && (SizeY <= vc.maxheight)) {
vm.width = SizeX;
vm.height = SizeY;
}
else {
vm.width = vc.maxwidth;
vm.height = vc.maxheight;
}
vm.format = VIDEO_PALETTE_RGB24;
if (ioctl(videoDev, VIDIOCMCAPTURE, &vm) == 0 && ioctl(videoDev, VIDIOCSYNC, &vm.frame) == 0) {
// make RGB out of BGR:
int memsize = vm.width * vm.height;
unsigned char *mem1 = mem;
for (int i = 0; i < memsize; i++) {
unsigned char tmp = mem1[2];
mem1[2] = mem1[0];
mem1[0] = tmp;
mem1 += 3;
}
if (Quality < 0)
Quality = 100;
isyslog("grabbing to %s %d %d %d", Jpeg ? "JPEG" : "PNM", Quality, vm.width, vm.height);
if (Jpeg) {
// convert to JPEG:
result = RgbToJpeg(mem, vm.width, vm.height, Size, Quality);
if (!result)
esyslog("ERROR: failed to convert image to JPEG");
}
else {
// convert to PNM:
char buf[32];
snprintf(buf, sizeof(buf), "P6\n%d\n%d\n255\n", vm.width, vm.height);
int l = strlen(buf);
int bytes = memsize * 3;
Size = l + bytes;
result = MALLOC(uchar, Size);
if (result) {
memcpy(result, buf, l);
memcpy(result + l, mem, bytes);
}
else
esyslog("ERROR: failed to convert image to PNM");
}
}
}
munmap(mem, msize);
}
else
esyslog("ERROR: failed to memmap video device");
}
close(videoDev);
return result;
}
else
LOG_ERROR_STR(buffer);
return NULL;
}
void cDvbDevice::SetVideoDisplayFormat(eVideoDisplayFormat VideoDisplayFormat)
{
cDevice::SetVideoDisplayFormat(VideoDisplayFormat);
if (HasDecoder()) {
if (Setup.VideoFormat) {
CHECK(ioctl(fd_video, VIDEO_SET_DISPLAY_FORMAT, VIDEO_LETTER_BOX));
}
else {
switch (VideoDisplayFormat) {
case vdfPanAndScan:
CHECK(ioctl(fd_video, VIDEO_SET_DISPLAY_FORMAT, VIDEO_PAN_SCAN));
break;
case vdfLetterBox:
CHECK(ioctl(fd_video, VIDEO_SET_DISPLAY_FORMAT, VIDEO_LETTER_BOX));
break;
case vdfCenterCutOut:
CHECK(ioctl(fd_video, VIDEO_SET_DISPLAY_FORMAT, VIDEO_CENTER_CUT_OUT));
break;
}
}
}
}
void cDvbDevice::SetVideoFormat(bool VideoFormat16_9)
{
if (HasDecoder()) {
CHECK(ioctl(fd_video, VIDEO_SET_FORMAT, VideoFormat16_9 ? VIDEO_FORMAT_16_9 : VIDEO_FORMAT_4_3));
SetVideoDisplayFormat(eVideoDisplayFormat(Setup.VideoDisplayFormat));
}
}
eVideoSystem cDvbDevice::GetVideoSystem(void)
{
eVideoSystem VideoSystem = vsPAL;
video_size_t vs;
if (ioctl(fd_video, VIDEO_GET_SIZE, &vs) == 0) {
if (vs.h == 480 || vs.h == 240)
VideoSystem = vsNTSC;
}
else
LOG_ERROR;
return VideoSystem;
}
bool cDvbDevice::SetAudioBypass(bool On)
{
return ioctl(fd_audio, AUDIO_SET_BYPASS_MODE, On) == 0;
}
// ptAudio ptVideo ptPcr ptTeletext ptDolby ptOther
dmx_pes_type_t PesTypes[] = { DMX_PES_AUDIO, DMX_PES_VIDEO, DMX_PES_PCR, DMX_PES_TELETEXT, DMX_PES_OTHER, DMX_PES_OTHER };
bool cDvbDevice::SetPid(cPidHandle *Handle, int Type, bool On)
{
if (Handle->pid) {
dmx_pes_filter_params pesFilterParams;
memset(&pesFilterParams, 0, sizeof(pesFilterParams));
if (On) {
if (Handle->handle < 0) {
Handle->handle = DvbOpen(DEV_DVB_DEMUX, CardIndex(), O_RDWR | O_NONBLOCK, true);
if (Handle->handle < 0) {
LOG_ERROR;
return false;
}
}
pesFilterParams.pid = Handle->pid;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = (Type <= ptTeletext && Handle->used <= 1) ? DMX_OUT_DECODER : DMX_OUT_TS_TAP;
pesFilterParams.pes_type= PesTypes[Type < ptOther ? Type : ptOther];
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams) < 0) {
LOG_ERROR;
return false;
}
}
else if (!Handle->used) {
CHECK(ioctl(Handle->handle, DMX_STOP));
if (Type <= ptTeletext) {
pesFilterParams.pid = 0x1FFF;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = DMX_OUT_DECODER;
pesFilterParams.pes_type= PesTypes[Type];
pesFilterParams.flags = DMX_IMMEDIATE_START;
CHECK(ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams));
if (PesTypes[Type] == DMX_PES_VIDEO) // let's only do this once
SetPlayMode(pmNone); // necessary to switch a PID from DMX_PES_VIDEO/AUDIO to DMX_PES_OTHER
}
close(Handle->handle);
Handle->handle = -1;
}
}
return true;
}
int cDvbDevice::OpenFilter(u_short Pid, u_char Tid, u_char Mask)
{
const char *FileName = *cDvbName(DEV_DVB_DEMUX, CardIndex());
int f = open(FileName, O_RDWR | O_NONBLOCK);
if (f >= 0) {
dmx_sct_filter_params sctFilterParams;
memset(&sctFilterParams, 0, sizeof(sctFilterParams));
sctFilterParams.pid = Pid;
sctFilterParams.timeout = 0;
sctFilterParams.flags = DMX_IMMEDIATE_START;
sctFilterParams.filter.filter[0] = Tid;
sctFilterParams.filter.mask[0] = Mask;
if (ioctl(f, DMX_SET_FILTER, &sctFilterParams) >= 0)
return f;
else {
esyslog("ERROR: can't set filter (pid=%d, tid=%02X, mask=%02X): %m", Pid, Tid, Mask);
close(f);
}
}
else
esyslog("ERROR: can't open filter handle on '%s'", FileName);
return -1;
}
void cDvbDevice::TurnOffLiveMode(bool LiveView)
{
if (LiveView) {
// Avoid noise while switching:
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, true));
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
CHECK(ioctl(fd_video, VIDEO_CLEAR_BUFFER));
}
// Turn off live PIDs:
DetachAll(pidHandles[ptAudio].pid);
DetachAll(pidHandles[ptVideo].pid);
DetachAll(pidHandles[ptPcr].pid);
DetachAll(pidHandles[ptTeletext].pid);
DelPid(pidHandles[ptAudio].pid);
DelPid(pidHandles[ptVideo].pid);
DelPid(pidHandles[ptPcr].pid, ptPcr);
DelPid(pidHandles[ptTeletext].pid);
DelPid(pidHandles[ptDolby].pid);
}
bool cDvbDevice::ProvidesSource(int Source) const
{
int type = Source & cSource::st_Mask;
return type == cSource::stNone
|| type == cSource::stCable && frontendType == FE_QAM
|| type == cSource::stSat && frontendType == FE_QPSK
|| type == cSource::stTerr && frontendType == FE_OFDM;
}
bool cDvbDevice::ProvidesTransponder(const cChannel *Channel) const
{
return ProvidesSource(Channel->Source()) && (!cSource::IsSat(Channel->Source()) || !Setup.DiSEqC || Diseqcs.Get(Channel->Source(), Channel->Frequency(), Channel->Polarization()));
}
bool cDvbDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *NeedsDetachReceivers) const
{
bool result = false;
bool hasPriority = Priority < 0 || Priority > this->Priority();
bool needsDetachReceivers = false;
if (ProvidesSource(Channel->Source()) && ProvidesCa(Channel)) {
result = hasPriority;
if (Priority >= 0 && Receiving(true)) {
if (dvbTuner->IsTunedTo(Channel)) {
if (Channel->Vpid() && !HasPid(Channel->Vpid()) || Channel->Apid(0) && !HasPid(Channel->Apid(0))) {
#ifdef DO_MULTIPLE_RECORDINGS
#ifndef DO_MULTIPLE_CA_CHANNELS
if (Ca() >= CA_ENCRYPTED_MIN || Channel->Ca() >= CA_ENCRYPTED_MIN)
needsDetachReceivers = Ca() != Channel->Ca();
else
#endif
if (!IsPrimaryDevice())
result = true;
#ifdef DO_REC_AND_PLAY_ON_PRIMARY_DEVICE
else
result = Priority >= Setup.PrimaryLimit;
#endif
#endif
}
else
result = !IsPrimaryDevice() || Priority >= Setup.PrimaryLimit;
}
else
needsDetachReceivers = true;
}
}
if (NeedsDetachReceivers)
*NeedsDetachReceivers = needsDetachReceivers;
return result;
}
bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
{
bool DoTune = !dvbTuner->IsTunedTo(Channel);
bool TurnOffLivePIDs = HasDecoder()
&& (DoTune
|| !IsPrimaryDevice()
|| LiveView // for a new live view the old PIDs need to be turned off
|| pidHandles[ptVideo].pid == Channel->Vpid() // for recording the PIDs must be shifted from DMX_PES_AUDIO/VIDEO to DMX_PES_OTHER
);
bool StartTransferMode = IsPrimaryDevice() && !DoTune
&& (LiveView && HasPid(Channel->Vpid() ? Channel->Vpid() : Channel->Apid(0)) && (pidHandles[ptVideo].pid != Channel->Vpid() || pidHandles[ptAudio].pid != Channel->Apid(0))// the PID is already set as DMX_PES_OTHER
|| !LiveView && (pidHandles[ptVideo].pid == Channel->Vpid() || pidHandles[ptAudio].pid == Channel->Apid(0)) // a recording is going to shift the PIDs from DMX_PES_AUDIO/VIDEO to DMX_PES_OTHER
);
bool TurnOnLivePIDs = HasDecoder() && !StartTransferMode && LiveView;
#ifndef DO_MULTIPLE_RECORDINGS
TurnOffLivePIDs = TurnOnLivePIDs = true;
StartTransferMode = false;
#endif
// Turn off live PIDs if necessary:
if (TurnOffLivePIDs)
TurnOffLiveMode(LiveView);
// Set the tuner:
dvbTuner->Set(Channel, DoTune);
// If this channel switch was requested by the EITScanner we don't wait for
// a lock and don't set any live PIDs (the EITScanner will wait for the lock
// by itself before setting any filters):
if (EITScanner.UsesDevice(this)) //XXX
return true;
// PID settings:
if (TurnOnLivePIDs) {
SetAudioBypass(false);
if (!(AddPid(Channel->Ppid(), ptPcr) && AddPid(Channel->Vpid(), ptVideo) && AddPid(Channel->Apid(0), ptAudio))) {
esyslog("ERROR: failed to set PIDs for channel %d on device %d", Channel->Number(), CardIndex() + 1);
return false;
}
//XXX quick workaround for additional live audio PIDs:
if (ciHandler) {
ciHandler->SetPid(Channel->Apid(1), true);
ciHandler->SetPid(Channel->Dpid(0), true);
}
if (IsPrimaryDevice())
AddPid(Channel->Tpid(), ptTeletext);
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, true)); // actually one would expect 'false' here, but according to Marco Schl<68><6C>ler <marco@lordzodiac.de> this works
// to avoid missing audio after replaying a DVD; with 'false' there is an audio disturbance when switching
// between two channels on the same transponder on DVB-S
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
}
else if (StartTransferMode)
cControl::Launch(new cTransferControl(this, Channel->Vpid(), Channel->Apids(), Channel->Dpids(), Channel->Spids()));
return true;
}
bool cDvbDevice::HasLock(int TimeoutMs)
{
return dvbTuner ? dvbTuner->Locked(TimeoutMs) : false;
}
int cDvbDevice::GetAudioChannelDevice(void)
{
if (HasDecoder()) {
audio_status_t as;
CHECK(ioctl(fd_audio, AUDIO_GET_STATUS, &as));
return as.channel_select;
}
return 0;
}
void cDvbDevice::SetAudioChannelDevice(int AudioChannel)
{
if (HasDecoder())
CHECK(ioctl(fd_audio, AUDIO_CHANNEL_SELECT, AudioChannel));
}
void cDvbDevice::SetVolumeDevice(int Volume)
{
if (HasDecoder()) {
if (digitalAudio)
Volume = 0;
audio_mixer_t am;
// conversion for linear volume response:
am.volume_left = am.volume_right = 2 * Volume - Volume * Volume / 255;
CHECK(ioctl(fd_audio, AUDIO_SET_MIXER, &am));
}
}
void cDvbDevice::SetDigitalAudioDevice(bool On)
{
if (digitalAudio != On) {
if (digitalAudio)
cCondWait::SleepMs(1000); // Wait until any leftover digital data has been flushed
digitalAudio = On;
SetVolumeDevice(On || IsMute() ? 0 : CurrentVolume());
}
}
void cDvbDevice::SetTransferModeForDolbyDigital(bool On)
{
setTransferModeForDolbyDigital = On;
}
void cDvbDevice::SetAudioTrackDevice(eTrackType Type)
{
const tTrackId *TrackId = GetTrack(Type);
if (TrackId && TrackId->id) {
SetAudioBypass(false);
if (IS_AUDIO_TRACK(Type) || (IS_DOLBY_TRACK(Type) && SetAudioBypass(true))) {
if (pidHandles[ptAudio].pid && pidHandles[ptAudio].pid != TrackId->id) {
DetachAll(pidHandles[ptAudio].pid);
pidHandles[ptAudio].pid = TrackId->id;
SetPid(&pidHandles[ptAudio], ptAudio, true);
}
}
else if (IS_DOLBY_TRACK(Type)) {
if (!setTransferModeForDolbyDigital)
return;
// Currently this works only in Transfer Mode
cChannel *Channel = Channels.GetByNumber(CurrentChannel());
if (Channel)
SetChannelDevice(Channel, false); // this implicitly starts Transfer Mode
}
}
}
bool cDvbDevice::CanReplay(void) const
{
#ifndef DO_REC_AND_PLAY_ON_PRIMARY_DEVICE
if (Receiving())
return false;
#endif
return cDevice::CanReplay();
}
bool cDvbDevice::SetPlayMode(ePlayMode PlayMode)
{
if (PlayMode != pmExtern_THIS_SHOULD_BE_AVOIDED && fd_video < 0 && fd_audio < 0) {
// reopen the devices
fd_video = DvbOpen(DEV_DVB_VIDEO, CardIndex(), O_RDWR | O_NONBLOCK);
fd_audio = DvbOpen(DEV_DVB_AUDIO, CardIndex(), O_RDWR | O_NONBLOCK);
SetVideoFormat(Setup.VideoFormat);
}
switch (PlayMode) {
case pmNone:
// special handling to return from PCM replay:
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_video, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY));
CHECK(ioctl(fd_video, VIDEO_PLAY));
CHECK(ioctl(fd_video, VIDEO_STOP, true));
CHECK(ioctl(fd_audio, AUDIO_STOP, true));
CHECK(ioctl(fd_video, VIDEO_CLEAR_BUFFER));
CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
CHECK(ioctl(fd_video, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_DEMUX));
CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_DEMUX));
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, false));
break;
case pmAudioVideo:
case pmAudioOnlyBlack:
if (playMode == pmNone)
TurnOffLiveMode(true);
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_MEMORY));
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, PlayMode == pmAudioVideo));
CHECK(ioctl(fd_audio, AUDIO_PLAY));
CHECK(ioctl(fd_video, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY));
CHECK(ioctl(fd_video, VIDEO_PLAY));
break;
case pmAudioOnly:
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_audio, AUDIO_STOP, true));
CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_MEMORY));
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
CHECK(ioctl(fd_audio, AUDIO_PLAY));
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, false));
break;
case pmVideoOnly:
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
CHECK(ioctl(fd_video, VIDEO_STOP, true));
CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_DEMUX));
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
CHECK(ioctl(fd_audio, AUDIO_PLAY));
CHECK(ioctl(fd_video, VIDEO_CLEAR_BUFFER));
CHECK(ioctl(fd_video, VIDEO_SELECT_SOURCE, VIDEO_SOURCE_MEMORY));
CHECK(ioctl(fd_video, VIDEO_PLAY));
break;
case pmExtern_THIS_SHOULD_BE_AVOIDED:
close(fd_video);
close(fd_audio);
fd_video = fd_audio = -1;
break;
}
playMode = PlayMode;
return true;
}
int64_t cDvbDevice::GetSTC(void)
{
if (fd_stc >= 0) {
struct dmx_stc stc;
stc.num = 0;
if (ioctl(fd_stc, DMX_GET_STC, &stc) == -1) {
esyslog("ERROR: stc %d: %m", CardIndex() + 1);
return -1;
}
return stc.stc / stc.base;
}
return -1;
}
void cDvbDevice::TrickSpeed(int Speed)
{
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_SLOWMOTION, Speed));
}
void cDvbDevice::Clear(void)
{
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_CLEAR_BUFFER));
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
cDevice::Clear();
}
void cDvbDevice::Play(void)
{
if (playMode == pmAudioOnly || playMode == pmAudioOnlyBlack) {
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_CONTINUE));
}
else {
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_CONTINUE));
}
cDevice::Play();
}
void cDvbDevice::Freeze(void)
{
if (playMode == pmAudioOnly || playMode == pmAudioOnlyBlack) {
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_PAUSE));
}
else {
if (fd_audio >= 0)
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_FREEZE));
}
cDevice::Freeze();
}
void cDvbDevice::Mute(void)
{
if (fd_audio >= 0) {
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, true));
}
cDevice::Mute();
}
void cDvbDevice::StillPicture(const uchar *Data, int Length)
{
if (Data[0] == 0x00 && Data[1] == 0x00 && Data[2] == 0x01 && (Data[3] & 0xF0) == 0xE0) {
// PES data
char *buf = MALLOC(char, Length);
if (!buf)
return;
int i = 0;
int blen = 0;
while (i < Length - 6) {
if (Data[i] == 0x00 && Data[i + 1] == 0x00 && Data[i + 2] == 0x01) {
int len = Data[i + 4] * 256 + Data[i + 5];
if ((Data[i + 3] & 0xF0) == 0xE0) { // video packet
// skip PES header
int offs = i + 6;
// skip header extension
if ((Data[i + 6] & 0xC0) == 0x80) {
// MPEG-2 PES header
if (Data[i + 8] >= Length)
break;
offs += 3;
offs += Data[i + 8];
len -= 3;
len -= Data[i + 8];
if (len < 0 || offs + len > Length)
break;
}
else {
// MPEG-1 PES header
while (offs < Length && len > 0 && Data[offs] == 0xFF) {
offs++;
len--;
}
if (offs <= Length - 2 && len >= 2 && (Data[offs] & 0xC0) == 0x40) {
offs += 2;
len -= 2;
}
if (offs <= Length - 5 && len >= 5 && (Data[offs] & 0xF0) == 0x20) {
offs += 5;
len -= 5;
}
else if (offs <= Length - 10 && len >= 10 && (Data[offs] & 0xF0) == 0x30) {
offs += 10;
len -= 10;
}
else if (offs < Length && len > 0) {
offs++;
len--;
}
}
if (blen + len > Length) // invalid PES length field
break;
memcpy(&buf[blen], &Data[offs], len);
i = offs + len;
blen += len;
}
else if (Data[i + 3] >= 0xBD && Data[i + 3] <= 0xDF) // other PES packets
i += len + 6;
else
i++;
}
else
i++;
}
video_still_picture sp = { buf, blen };
CHECK(ioctl(fd_video, VIDEO_STILLPICTURE, &sp));
free(buf);
}
else {
// non-PES data
video_still_picture sp = { (char *)Data, Length };
CHECK(ioctl(fd_video, VIDEO_STILLPICTURE, &sp));
}
}
bool cDvbDevice::Poll(cPoller &Poller, int TimeoutMs)
{
Poller.Add((playMode == pmAudioOnly || playMode == pmAudioOnlyBlack) ? fd_audio : fd_video, true);
return Poller.Poll(TimeoutMs);
}
bool cDvbDevice::Flush(int TimeoutMs)
{
//TODO actually this function should wait until all buffered data has been processed by the card, but how?
return true;
}
int cDvbDevice::PlayVideo(const uchar *Data, int Length)
{
return WriteAllOrNothing(fd_video, Data, Length, 1000, 10);
}
int cDvbDevice::PlayAudio(const uchar *Data, int Length)
{
return WriteAllOrNothing(fd_audio, Data, Length, 1000, 10);
}
bool cDvbDevice::OpenDvr(void)
{
CloseDvr();
fd_dvr = DvbOpen(DEV_DVB_DVR, CardIndex(), O_RDONLY | O_NONBLOCK, true);
if (fd_dvr >= 0)
tsBuffer = new cTSBuffer(fd_dvr, MEGABYTE(2), CardIndex() + 1);
return fd_dvr >= 0;
}
void cDvbDevice::CloseDvr(void)
{
if (fd_dvr >= 0) {
delete tsBuffer;
tsBuffer = NULL;
close(fd_dvr);
fd_dvr = -1;
}
}
bool cDvbDevice::GetTSPacket(uchar *&Data)
{
if (tsBuffer) {
Data = tsBuffer->Get();
return true;
}
return false;
}
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