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vdr/dvbdevice.c
Klaus Schmidinger 2b15337b71 Version 1.1.19 
- The character '|' in description texts of EPG records is now interpreted as a
  newline character (suggested by Gerhard Steiner).
- Updated 'channels.conf.cable' (thanks to Andreas Kool).
- Improved handling of repeated remote keys.
- The RCU now only sets the channel number display when there are no incoming remote
  control keys, which improves reaction on repeated keys.
- The actual tuning is now done in a separate thread, which makes zapping through the
  channels a lot faster and no longer gets stuck on channels that don't broadcast.
  This also makes "Motor-DiSEqC" work (thanks to Reinhard Walter Buchner for his help
  in testing this). Since switching channels now no longer explicitly waits for a
  channel lock in the foreground thread, the "panic level" mechanism is no longer
  used (maybe we don't need it any more, anyway).
- The keyboard is now by default always active to control VDR. The 'make' option
  REMOTE=KBD is therefore obsolete. When compiling VDR with REMOTE=RCU or REMOTE=LIRC,
  the keyboard can thus now be active together with the remote control. If you want
  to build VDR _without_ keyboard support you can set NO_KBD=1 in the 'make' call.
  Since the keyboard codes are now different from the ones used previously (which
  were mapped by the 'ncurses' library) you will need to go through the "Learning
  keys" procedure again. To do so, either delete the file /video/remote.conf or
  remove the KBD.* entries from it before starting this version of VDR.
  (Thanks to Thomas Sailer for pointing out how to set the terminal parameters to
  read from the keyboard).
- The 'ncurses' library is now only necessary when compiling VDR with DEBUG_OSD=1.
2002-12-08 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 1.38 2002/12/07 14:50:46 kls Exp $
*/
#include "dvbdevice.h"
#include <errno.h>
extern "C" {
#ifdef boolean
#define HAVE_BOOLEAN
#endif
#include <jpeglib.h>
#undef boolean
}
#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 "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 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"
static const char *DvbName(const char *Name, int n)
{
static char buffer[PATH_MAX];
snprintf(buffer, sizeof(buffer), "%s%d/%s%d", DEV_DVB_ADAPTER, n, Name, 0);
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;
}
// --- cDvbTuner -------------------------------------------------------------
class cDvbTuner : public cThread {
private:
enum eTunerStatus { tsIdle, tsSet, tsTuned, tsLocked };
int fd_frontend;
int cardIndex;
fe_type_t frontendType;
cChannel channel;
const char *diseqcCommands;
bool active;
eTunerStatus tunerStatus;
cMutex mutex;
cCondVar newSet;
bool SetFrontend(void);
virtual void Action(void);
public:
cDvbTuner(int Fd_Frontend, int CardIndex, fe_type_t FrontendType);
virtual ~cDvbTuner();
bool IsTunedTo(const cChannel *Channel) const;
void Set(const cChannel *Channel);
bool Locked(void) { return tunerStatus == tsLocked; }
};
cDvbTuner::cDvbTuner(int Fd_Frontend, int CardIndex, fe_type_t FrontendType)
{
fd_frontend = Fd_Frontend;
cardIndex = CardIndex;
frontendType = FrontendType;
diseqcCommands = NULL;
active = false;
tunerStatus = tsIdle;
Start();
}
cDvbTuner::~cDvbTuner()
{
active = false;
tunerStatus = tsIdle;
newSet.Broadcast();
Cancel(3);
}
bool cDvbTuner::IsTunedTo(const cChannel *Channel) const
{
return tunerStatus != tsIdle && channel.Source() == Channel->Source() && channel.Frequency() == Channel->Frequency();
}
void cDvbTuner::Set(const cChannel *Channel)
{
cMutexLock MutexLock(&mutex);
channel = *Channel;
tunerStatus = tsSet;
newSet.Broadcast();
}
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') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18;
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, volt));
CHECK(ioctl(fd_frontend, FE_SET_TONE, tone));
}
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());
}
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());
}
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());
}
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)
{
dsyslog("tuner thread started on device %d (pid=%d)", cardIndex + 1, getpid());
active = true;
while (active) {
cMutexLock MutexLock(&mutex);
if (tunerStatus == tsSet)
tunerStatus = SetFrontend() ? tsTuned : tsIdle;
if (tunerStatus == tsTuned) {
fe_status_t status = fe_status_t(0);
CHECK(ioctl(fd_frontend, FE_READ_STATUS, &status));
if (status & FE_HAS_LOCK)
tunerStatus = tsLocked;
}
dvb_frontend_event event;
if (ioctl(fd_frontend, FE_GET_EVENT, &event) == 0) {
if (tunerStatus != tsIdle && event.status & FE_REINIT) {
tunerStatus = tsSet;
esyslog("ERROR: frontend %d was reinitialized - re-tuning", cardIndex);
continue;
}
}
newSet.TimedWait(mutex, 1000);
}
dsyslog("tuner thread ended on device %d (pid=%d)", cardIndex + 1, getpid());
}
// --- cDvbDevice ------------------------------------------------------------
cDvbDevice::cDvbDevice(int n)
{
dvbTuner = NULL;
frontendType = fe_type_t(-1); // don't know how else to initialize this - there is no FE_UNKNOWN
siProcessor = NULL;
spuDecoder = NULL;
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);
// 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) {
dvb_frontend_info feinfo;
siProcessor = new cSIProcessor(DvbName(DEV_DVB_DEMUX, n));
if (ioctl(fd_frontend, FE_GET_INFO, &feinfo) >= 0) {
frontendType = feinfo.type;
dvbTuner = new cDvbTuner(fd_frontend, CardIndex(), frontendType);
}
else
LOG_ERROR;
}
else
esyslog("ERROR: can't open DVB device %d", n);
aPid1 = aPid2 = 0;
}
cDvbDevice::~cDvbDevice()
{
delete spuDecoder;
delete siProcessor;
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(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);
}
cSpuDecoder *cDvbDevice::GetSpuDecoder(void)
{
if (!spuDecoder && IsPrimaryDevice())
spuDecoder = new cDvbSpuDecoder();
return spuDecoder;
}
bool cDvbDevice::GrabImage(const char *FileName, bool Jpeg, int Quality, int SizeX, int SizeY)
{
char buffer[PATH_MAX];
snprintf(buffer, sizeof(buffer), "%s%d", DEV_VIDEO, CardIndex());
int videoDev = open(buffer, O_RDWR);
if (videoDev < 0)
LOG_ERROR_STR(buffer);
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));
}
// ptAudio ptVideo ptTeletext ptDolby ptOther
dmx_pes_type_t PesTypes[] = { DMX_PES_AUDIO, DMX_PES_VIDEO, 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)
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;
}
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;
return true;
}
bool cDvbDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *NeedsDetachReceivers) const
{
bool result = false;
bool hasPriority = Priority < 0 || Priority > this->Priority();
bool needsDetachReceivers = true;
if (ProvidesSource(Channel->Source()) && ProvidesCa(Channel->Ca())) {
#ifdef DO_MULTIPLE_RECORDINGS
if (Receiving()) {
if (dvbTuner->IsTunedTo(Channel)) {
needsDetachReceivers = false;
if (!HasPid(Channel->Vpid())) {
if (Channel->Ca() > CACONFBASE) {
needsDetachReceivers = true;
result = hasPriority;
}
else if (!IsPrimaryDevice())
result = true;
#ifdef DO_REC_AND_PLAY_ON_PRIMARY_DEVICE
else
result = Priority >= Setup.PrimaryLimit;
#endif
}
else
result = !IsPrimaryDevice() || Priority >= Setup.PrimaryLimit;
}
else
result = hasPriority;
}
else
#endif
result = hasPriority;
}
if (NeedsDetachReceivers)
*NeedsDetachReceivers = needsDetachReceivers;
return result;
}
bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
{
bool IsEncrypted = Channel->Ca() > CACONFBASE;
bool DoTune = !dvbTuner->IsTunedTo(Channel);
bool TurnOffLivePIDs = HasDecoder()
&& (DoTune
|| IsEncrypted && pidHandles[ptVideo].pid != Channel->Vpid() // CA channels can only be decrypted in "live" mode
|| !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() && !IsEncrypted && !DoTune
&& (LiveView && HasPid(Channel->Vpid()) && pidHandles[ptVideo].pid != Channel->Vpid() // the PID is already set as DMX_PES_OTHER
|| !LiveView && pidHandles[ptVideo].pid == Channel->Vpid() // a recording is going to shift the PIDs from DMX_PES_AUDIO/VIDEO to DMX_PES_OTHER
);
bool TurnOnLivePIDs = HasDecoder() && !StartTransferMode
&& (IsEncrypted // CA channels can only be decrypted in "live" mode
|| LiveView
);
#ifndef DO_MULTIPLE_RECORDINGS
TurnOffLivePIDs = TurnOnLivePIDs = true;
StartTransferMode = false;
#endif
// Stop setting system time:
if (siProcessor)
siProcessor->SetCurrentTransponder(0, 0);
// Turn off live PIDs if necessary:
if (TurnOffLivePIDs) {
// 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:
DelPid(pidHandles[ptAudio].pid);
DelPid(pidHandles[ptVideo].pid);
DelPid(pidHandles[ptTeletext].pid);
DelPid(pidHandles[ptDolby].pid);
}
if (DoTune) {
dvbTuner->Set(Channel);
/*XXX do we still need this???
if (!(status & FE_HAS_LOCK)) {
esyslog("ERROR: channel %d not locked on DVB card %d!", Channel->Number(), CardIndex() + 1);
if (LiveView && IsPrimaryDevice())
cThread::RaisePanic();
return false;
}
XXX*/
}
// PID settings:
if (TurnOnLivePIDs) {
aPid1 = Channel->Apid1();
aPid2 = Channel->Apid2();
if (!(AddPid(Channel->Apid1(), ptAudio) && AddPid(Channel->Vpid(), ptVideo))) {//XXX+ dolby dpid1!!! (if audio plugins are attached)
esyslog("ERROR: failed to set PIDs for channel %d on device %d", Channel->Number(), CardIndex() + 1);
return false;
}
if (IsPrimaryDevice())
AddPid(Channel->Tpid(), ptTeletext);
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
}
else if (StartTransferMode)
cControl::Launch(new cTransferControl(this, Channel->Vpid(), Channel->Apid1(), Channel->Apid2(), Channel->Dpid1(), Channel->Dpid2()));
// Start setting system time:
if (siProcessor)
siProcessor->SetCurrentTransponder(Channel->Source(), Channel->Frequency());
return true;
}
void cDvbDevice::SetVolumeDevice(int Volume)
{
if (HasDecoder()) {
audio_mixer_t am;
am.volume_left = am.volume_right = Volume;
CHECK(ioctl(fd_audio, AUDIO_SET_MIXER, &am));
}
}
int cDvbDevice::NumAudioTracksDevice(void) const
{
int n = 0;
if (aPid1)
n++;
if (!Ca() && aPid2 && aPid1 != aPid2) // a Ca recording session blocks switching live audio tracks
n++;
return n;
}
const char **cDvbDevice::GetAudioTracksDevice(int *CurrentTrack) const
{
if (NumAudioTracksDevice()) {
if (CurrentTrack)
*CurrentTrack = (pidHandles[ptAudio].pid == aPid1) ? 0 : 1;
static const char *audioTracks1[] = { "Audio 1", NULL };
static const char *audioTracks2[] = { "Audio 1", "Audio 2", NULL };
return NumAudioTracksDevice() > 1 ? audioTracks2 : audioTracks1;
}
return NULL;
}
void cDvbDevice::SetAudioTrackDevice(int Index)
{
if (0 <= Index && Index < NumAudioTracksDevice()) {
int vpid = pidHandles[ptVideo].pid; // need to turn video PID off/on to restart demux
DelPid(vpid);
DelPid(pidHandles[ptAudio].pid);
AddPid(Index ? aPid2 : aPid1, ptAudio);
AddPid(vpid, ptVideo);
}
}
bool cDvbDevice::CanReplay(void) const
{
#ifndef DO_REC_AND_PLAY_ON_PRIMARY_DEVICE
if (Receiving())
return false;
#endif
return cDevice::CanReplay() && !Ca(); // we can only replay if there is no Ca recording going on
}
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:
case pmAudioOnlyBlack:
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, 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:
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 (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));
}
}
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));
}
}
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 || playMode == pmAudioOnlyBlack) ? fd_audio : fd_video, true);
return Poller.Poll(TimeoutMs);
}
int cDvbDevice::PlayVideo(const uchar *Data, int Length)
{
int fd = (playMode == pmAudioOnly || playMode == pmAudioOnlyBlack) ? fd_audio : fd_video;
if (fd >= 0)
return write(fd, Data, Length);
return -1;
}
void cDvbDevice::PlayAudio(const uchar *Data, int Length)
{
//XXX actually this function will only be needed to implement replaying AC3 over the DVB card's S/PDIF
cDevice::PlayAudio(Data, Length);
}
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 == EOVERFLOW)
esyslog("ERROR: DVB driver buffer overflow on device %d", CardIndex() + 1);
else {
LOG_ERROR;
return false;
}
}
return true;
}
return false;
}
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