/* * 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 1.11 2002/09/07 13:39:49 kls Exp $ */ #include "dvbdevice.h" #include extern "C" { #ifdef boolean #define HAVE_BOOLEAN #endif #include #undef boolean } #include #include #ifdef NEWSTRUCT #include #include #include #include #else #include #include #include #include #endif #include #include #include "dvbosd.h" #include "player.h" #include "receiver.h" #include "status.h" #include "transfer.h" #define DEV_VIDEO "/dev/video" #ifdef NEWSTRUCT #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" #else #define DEV_DVB_OSD "/dev/ost/osd" #define DEV_DVB_FRONTEND "/dev/ost/frontend" #define DEV_DVB_SEC "/dev/ost/sec" #define DEV_DVB_DVR "/dev/ost/dvr" #define DEV_DVB_DEMUX "/dev/ost/demux" #define DEV_DVB_VIDEO "/dev/ost/video" #define DEV_DVB_AUDIO "/dev/ost/audio" #endif static const char *DvbName(const char *Name, int n) { static char buffer[PATH_MAX]; #ifdef NEWSTRUCT snprintf(buffer, sizeof(buffer), "%s%d/%s%d", DEV_DVB_ADAPTER, n, Name, 0); #else snprintf(buffer, sizeof(buffer), "%s%d", Name, n); #endif return buffer; } static int DvbOpen(const char *Name, int n, int Mode, bool ReportError = false) { const char *FileName = DvbName(Name, n); int fd = open(FileName, Mode); if (fd < 0 && ReportError) LOG_ERROR_STR(FileName); return fd; } cDvbDevice::cDvbDevice(int n) { frontendType = FrontendType(-1); // don't know how else to initialize this - there is no FE_UNKNOWN siProcessor = NULL; playMode = pmNone; // Devices that are present on all card types: 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); #ifndef NEWSTRUCT // Devices that are only present on DVB-S cards: fd_sec = DvbOpen(DEV_DVB_SEC, n, O_RDWR); #endif // The DVR device (will be opened and closed as needed): fd_dvr = -1; // Video format: SetVideoFormat(Setup.VideoFormat ? VIDEO_FORMAT_16_9 : VIDEO_FORMAT_4_3); // We only check the devices that must be present - the others will be checked before accessing them://XXX if (fd_frontend >= 0) { #ifdef NEWSTRUCT dvb_frontend_info feinfo; #else FrontendInfo feinfo; #endif siProcessor = new cSIProcessor(DvbName(DEV_DVB_DEMUX, n)); if (ioctl(fd_frontend, FE_GET_INFO, &feinfo) >= 0) frontendType = feinfo.type; else LOG_ERROR; } else esyslog("ERROR: can't open DVB device %d", n); frequency = 0; } cDvbDevice::~cDvbDevice() { delete siProcessor; // 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(DvbName(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) { cDvbOsd::SetDvbDevice(On ? this : NULL); } bool cDvbDevice::HasDecoder(void) const { return fd_video >= 0 && fd_audio >= 0; } cOsdBase *cDvbDevice::NewOsd(int x, int y) { return new cDvbOsd(x, y); } bool cDvbDevice::GrabImage(const char *FileName, bool Jpeg, int Quality, int SizeX, int SizeY) { int videoDev = DvbOpen(DEV_VIDEO, CardIndex(), O_RDWR, true); if (videoDev >= 0) { int result = 0; struct video_mbuf mbuf; result |= ioctl(videoDev, VIDIOCGMBUF, &mbuf); if (result == 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; result |= ioctl(videoDev, VIDIOCGCAP, &vc); 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; result |= ioctl(videoDev, VIDIOCMCAPTURE, &vm); result |= ioctl(videoDev, VIDIOCSYNC, &vm.frame); // 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 = 255; //XXX is this 'best'??? isyslog("grabbing to %s (%s %d %d %d)", FileName, Jpeg ? "JPEG" : "PNM", Quality, vm.width, vm.height); FILE *f = fopen(FileName, "wb"); if (f) { if (Jpeg) { // write JPEG file: struct jpeg_compress_struct cinfo; struct jpeg_error_mgr jerr; cinfo.err = jpeg_std_error(&jerr); jpeg_create_compress(&cinfo); jpeg_stdio_dest(&cinfo, f); cinfo.image_width = vm.width; cinfo.image_height = vm.height; cinfo.input_components = 3; cinfo.in_color_space = JCS_RGB; jpeg_set_defaults(&cinfo); jpeg_set_quality(&cinfo, Quality, true); jpeg_start_compress(&cinfo, true); int rs = vm.width * 3; JSAMPROW rp[vm.height]; for (int k = 0; k < vm.height; k++) rp[k] = &mem[rs * k]; jpeg_write_scanlines(&cinfo, rp, vm.height); jpeg_finish_compress(&cinfo); jpeg_destroy_compress(&cinfo); } else { // write PNM file: if (fprintf(f, "P6\n%d\n%d\n255\n", vm.width, vm.height) < 0 || fwrite(mem, vm.width * vm.height * 3, 1, f) < 0) { LOG_ERROR_STR(FileName); result |= 1; } } fclose(f); } else { LOG_ERROR_STR(FileName); result |= 1; } munmap(mem, msize); } else result |= 1; } close(videoDev); return result == 0; } return false; } 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)); } // ptVideo ptAudio ptTeletext ptDolby ptOther dmxPesType_t PesTypes[] = { DMX_PES_VIDEO, DMX_PES_AUDIO, DMX_PES_TELETEXT, DMX_PES_OTHER, DMX_PES_OTHER }; bool cDvbDevice::SetPid(cPidHandle *Handle, int Type, bool On) { if (Handle->pid) { if (On) { if (Handle->handle < 0) { Handle->handle = DvbOpen(DEV_DVB_DEMUX, CardIndex(), O_RDWR | O_NONBLOCK, true); if (Handle->handle < 0) return false; } } else { CHECK(ioctl(Handle->handle, DMX_STOP)); if (Handle->used == 0) { dmxPesFilterParams pesFilterParams; memset(&pesFilterParams, 0, sizeof(pesFilterParams)); pesFilterParams.pid = 0x1FFF; pesFilterParams.input = DMX_IN_FRONTEND; pesFilterParams.output = DMX_OUT_DECODER; pesFilterParams.pesType = PesTypes[Type < ptOther ? Type : ptOther]; pesFilterParams.flags = DMX_IMMEDIATE_START; CHECK(ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams)); close(Handle->handle); Handle->handle = -1; return true; } } if (Handle->pid != 0x1FFF) { dmxPesFilterParams pesFilterParams; memset(&pesFilterParams, 0, sizeof(pesFilterParams)); pesFilterParams.pid = Handle->pid; pesFilterParams.input = DMX_IN_FRONTEND; pesFilterParams.output = (Type <= ptTeletext && Handle->used <= 1) ? DMX_OUT_DECODER : DMX_OUT_TS_TAP; pesFilterParams.pesType = PesTypes[Type < ptOther ? Type : ptOther]; pesFilterParams.flags = DMX_IMMEDIATE_START; //XXX+ pesFilterParams.flags = DMX_CHECK_CRC;//XXX if (ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams) < 0) { LOG_ERROR; return false; } //XXX+ CHECK(ioctl(Handle->handle, DMX_SET_BUFFER_SIZE, KILOBYTE(32)));//XXX //XXX+ CHECK(ioctl(Handle->handle, DMX_START));//XXX } } return true; } bool cDvbDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *NeedsDetachReceivers) { bool result = false; bool hasPriority = Priority < 0 || Priority > this->Priority(); bool needsDetachReceivers = true; if (ProvidesCa(Channel->ca)) { if (Receiving()) { if (frequency == Channel->frequency) { needsDetachReceivers = false; if (!HasPid(Channel->vpid)) { if (Channel->ca > CACONFBASE) { needsDetachReceivers = true; result = hasPriority; } else if (!HasDecoder()) result = true; // if it has no decoder it can't be the primary device else { #define DVB_DRIVER_VERSION 2002090101 //XXX+ #define MIN_DVB_DRIVER_VERSION_FOR_TIMESHIFT 2002090101 #ifdef DVB_DRIVER_VERSION #if (DVB_DRIVER_VERSION >= MIN_DVB_DRIVER_VERSION_FOR_TIMESHIFT) result = !IsPrimaryDevice() || Priority >= Setup.PrimaryLimit; #endif #else #warning "DVB_DRIVER_VERSION not defined - time shift with only one DVB device disabled!" #endif } } else result = !IsPrimaryDevice() || Priority >= Setup.PrimaryLimit; } else result = hasPriority; } else result = hasPriority; } if (NeedsDetachReceivers) *NeedsDetachReceivers = needsDetachReceivers; return result; } bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView) { #if (DVB_DRIVER_VERSION < MIN_DVB_DRIVER_VERSION_FOR_TIMESHIFT) if (HasDecoder()) LiveView = true; #endif // Avoid noise while switching: if (HasDecoder()) { 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)); } // Stop setting system time: if (siProcessor) siProcessor->SetCurrentTransponder(0); // Turn off current PIDs: if (HasDecoder() && (LiveView || pidHandles[ptVideo].pid == Channel->vpid)) { DelPid(pidHandles[ptVideo].pid); DelPid(pidHandles[ptAudio].pid); DelPid(pidHandles[ptTeletext].pid); DelPid(pidHandles[ptDolby].pid); } if (frequency != Channel->frequency || Channel->ca > CACONFBASE) { // CA channels can only be decrypted in "live" mode #ifdef NEWSTRUCT dvb_frontend_parameters Frontend; #else FrontendParameters Frontend; #endif memset(&Frontend, 0, sizeof(Frontend)); switch (frontendType) { case FE_QPSK: { // DVB-S // Frequency offsets: unsigned int freq = Channel->frequency; int tone = SEC_TONE_OFF; if (freq < (unsigned int)Setup.LnbSLOF) { freq -= Setup.LnbFrequLo; tone = SEC_TONE_OFF; } else { freq -= Setup.LnbFrequHi; tone = SEC_TONE_ON; } #ifdef NEWSTRUCT Frontend.frequency = freq * 1000UL; Frontend.inversion = INVERSION_AUTO; Frontend.u.qpsk.symbol_rate = Channel->srate * 1000UL; Frontend.u.qpsk.fec_inner = FEC_AUTO; #else Frontend.Frequency = freq * 1000UL; Frontend.Inversion = INVERSION_AUTO; Frontend.u.qpsk.SymbolRate = Channel->srate * 1000UL; Frontend.u.qpsk.FEC_inner = FEC_AUTO; #endif int volt = (Channel->polarization == 'v' || Channel->polarization == 'V') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18; // DiSEqC: #ifdef NEWSTRUCT struct dvb_diseqc_master_cmd cmd = { {0xE0, 0x10, 0x38, 0xF0, 0x00, 0x00}, 4}; cmd.msg[3] = 0xF0 | (((Channel->diseqc * 4) & 0x0F) | (tone == SEC_TONE_ON ? 1 : 0) | (volt == SEC_VOLTAGE_18 ? 2 : 0)); if (Setup.DiSEqC) CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_OFF)); CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, volt)); if (Setup.DiSEqC) { usleep(15 * 1000); CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd)); usleep(15 * 1000); CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, (Channel->diseqc / 4) % 2 ? SEC_MINI_B : SEC_MINI_A)); usleep(15 * 1000); } CHECK(ioctl(fd_frontend, FE_SET_TONE, tone)); #else secCommand scmd; scmd.type = 0; scmd.u.diseqc.addr = 0x10; scmd.u.diseqc.cmd = 0x38; scmd.u.diseqc.numParams = 1; scmd.u.diseqc.params[0] = 0xF0 | ((Channel->diseqc * 4) & 0x0F) | (tone == SEC_TONE_ON ? 1 : 0) | (volt == SEC_VOLTAGE_18 ? 2 : 0); secCmdSequence scmds; scmds.voltage = volt; scmds.miniCommand = SEC_MINI_NONE; scmds.continuousTone = tone; scmds.numCommands = Setup.DiSEqC ? 1 : 0; scmds.commands = &scmd; CHECK(ioctl(fd_sec, SEC_SEND_SEQUENCE, &scmds)); #endif } break; case FE_QAM: { // DVB-C // Frequency and symbol rate: #ifdef NEWSTRUCT Frontend.frequency = Channel->frequency * 1000000UL; Frontend.inversion = INVERSION_AUTO; Frontend.u.qam.symbol_rate = Channel->srate * 1000UL; Frontend.u.qam.fec_inner = FEC_AUTO; Frontend.u.qam.modulation = QAM_64; #else Frontend.Frequency = Channel->frequency * 1000000UL; Frontend.Inversion = INVERSION_AUTO; Frontend.u.qam.SymbolRate = Channel->srate * 1000UL; Frontend.u.qam.FEC_inner = FEC_AUTO; Frontend.u.qam.QAM = QAM_64; #endif } break; case FE_OFDM: { // DVB-T // Frequency and OFDM paramaters: #ifdef NEWSTRUCT Frontend.frequency = Channel->frequency * 1000UL; Frontend.inversion = INVERSION_AUTO; Frontend.u.ofdm.bandwidth=BANDWIDTH_8_MHZ; Frontend.u.ofdm.code_rate_HP = FEC_2_3; Frontend.u.ofdm.code_rate_LP = FEC_1_2; Frontend.u.ofdm.constellation = QAM_64; Frontend.u.ofdm.transmission_mode = TRANSMISSION_MODE_2K; Frontend.u.ofdm.guard_interval = GUARD_INTERVAL_1_32; Frontend.u.ofdm.hierarchy_information = HIERARCHY_NONE; #else Frontend.Frequency = Channel->frequency * 1000UL; Frontend.Inversion = INVERSION_AUTO; Frontend.u.ofdm.bandWidth=BANDWIDTH_8_MHZ; Frontend.u.ofdm.HP_CodeRate=FEC_2_3; Frontend.u.ofdm.LP_CodeRate=FEC_1_2; Frontend.u.ofdm.Constellation=QAM_64; Frontend.u.ofdm.TransmissionMode=TRANSMISSION_MODE_2K; Frontend.u.ofdm.guardInterval=GUARD_INTERVAL_1_32; Frontend.u.ofdm.HierarchyInformation=HIERARCHY_NONE; #endif } break; default: esyslog("ERROR: attempt to set channel with unknown DVB frontend type"); return false; } #ifdef NEWSTRUCT // Discard stale events: for (;;) { dvb_frontend_event event; if (ioctl(fd_frontend, FE_GET_EVENT, &event) < 0) break; } #endif // Tuning: CHECK(ioctl(fd_frontend, FE_SET_FRONTEND, &Frontend)); // Wait for channel lock: #ifdef NEWSTRUCT FrontendStatus status = FrontendStatus(0); for (int i = 0; i < 100; i++) { CHECK(ioctl(fd_frontend, FE_READ_STATUS, &status)); if (status & FE_HAS_LOCK) break; usleep(10 * 1000); } if (!(status & FE_HAS_LOCK)) { esyslog("ERROR: channel %d not locked on DVB card %d!", Channel->number, CardIndex() + 1); if (IsPrimaryDevice()) cThread::RaisePanic(); return false; } #else if (cFile::FileReady(fd_frontend, 5000)) { FrontendEvent event; if (ioctl(fd_frontend, FE_GET_EVENT, &event) >= 0) { if (event.type != FE_COMPLETION_EV) { esyslog("ERROR: channel %d not sync'ed on DVB card %d!", Channel->number, CardIndex() + 1); if (IsPrimaryDevice()) cThread::RaisePanic(); return false; } } else esyslog("ERROR in frontend get event (channel %d, card %d): %m", Channel->number, CardIndex() + 1); } else esyslog("ERROR: timeout while tuning on DVB card %d", CardIndex() + 1); #endif frequency = Channel->frequency; } // PID settings: if (HasDecoder() && (LiveView || Channel->ca > CACONFBASE)) { // CA channels can only be decrypted in "live" mode if (!HasPid(Channel->vpid)) { if (!(AddPid(Channel->vpid, ptVideo) && AddPid(Channel->apid1, ptAudio))) {//XXX+ dolby dpid1!!! (if audio plugins are attached) esyslog("ERROR: failed to set PIDs for channel %d", Channel->number); return false; } if (IsPrimaryDevice()) AddPid(Channel->tpid, ptTeletext); CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true)); CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, false)); CHECK(ioctl(fd_video, VIDEO_SET_BLANK, false)); } else cControl::Launch(new cTransferControl(this, Channel->vpid, Channel->apid1, 0, 0, 0)); } // Start setting system time: if (siProcessor) siProcessor->SetCurrentTransponder(Channel->frequency); return true; } void cDvbDevice::SetVolumeDevice(int Volume) { if (HasDecoder()) { audioMixer_t am; am.volume_left = am.volume_right = Volume; CHECK(ioctl(fd_audio, AUDIO_SET_MIXER, &am)); } } 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)); if (siProcessor) siProcessor->SetStatus(true); break; case pmAudioVideo: if (siProcessor) siProcessor->SetStatus(false); 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, true)); 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: if (siProcessor) siProcessor->SetStatus(false); 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 pmExtern_THIS_SHOULD_BE_AVOIDED: if (siProcessor) siProcessor->SetStatus(false); close(fd_video); close(fd_audio); fd_video = fd_audio = -1; break; } playMode = PlayMode; return true; } 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)); } void cDvbDevice::Play(void) { if (fd_audio >= 0) CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true)); if (fd_video >= 0) CHECK(ioctl(fd_video, VIDEO_CONTINUE)); } void cDvbDevice::Freeze(void) { if (fd_audio >= 0) CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false)); if (fd_video >= 0) CHECK(ioctl(fd_video, VIDEO_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)); } } void cDvbDevice::StillPicture(const uchar *Data, int Length) { Mute(); /* Using the VIDEO_STILLPICTURE ioctl call would be the correct way to display a still frame, but unfortunately this doesn't work with frames from VDR. So let's do pretty much the same here as in DVB/driver/dvb.c's play_iframe() - I have absolutely no idea why it works this way, but doesn't work with VIDEO_STILLPICTURE. If anybody ever finds out what could be changed so that VIDEO_STILLPICTURE could be used, please let me know! kls 2002-03-23 */ //#define VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES #ifdef VIDEO_STILLPICTURE_WORKS_WITH_VDR_FRAMES videoDisplayStillPicture sp = { (char *)Data, Length }; CHECK(ioctl(fd_video, VIDEO_STILLPICTURE, &sp)); #else #define MIN_IFRAME 400000 for (int i = MIN_IFRAME / Length + 1; i > 0; i--) { safe_write(fd_video, Data, Length); usleep(1); // allows the buffer to be displayed in case the progress display is active } #endif } bool cDvbDevice::Poll(cPoller &Poller, int TimeoutMs) { Poller.Add(playMode == pmAudioOnly ? fd_audio : fd_video, true); return Poller.Poll(TimeoutMs); } int cDvbDevice::PlayVideo(const uchar *Data, int Length) { int fd = playMode == pmAudioOnly ? fd_audio : fd_video; if (fd >= 0) return write(fd, Data, Length); return -1; } int cDvbDevice::PlayAudio(const uchar *Data, int Length) { //XXX+ return -1; } 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) { close(fd_dvr); fd_dvr = -1; delete tsBuffer; tsBuffer = NULL; } } bool cDvbDevice::GetTSPacket(uchar *&Data) { if (tsBuffer) { int r = tsBuffer->Read(); if (r >= 0) { Data = tsBuffer->Get(); return true; } else if (FATALERRNO) { if (errno == EBUFFEROVERFLOW) // this error code is not defined in the library esyslog("ERROR: DVB driver buffer overflow on device %d", CardIndex() + 1); else { LOG_ERROR; return false; } } return true; } return false; }