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vdr/device.c

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/*
* device.c: The basic device interface
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: device.c 1.1 2002/06/16 12:29:09 kls Exp $
*/
#include "device.h"
#include <errno.h>
extern "C" {
#define HAVE_BOOLEAN
#include <jpeglib.h>
}
#include <linux/videodev.h>
#include <ost/sec.h>
#include <poll.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include "player.h"
#include "receiver.h"
#include "status.h"
#define DEV_VIDEO "/dev/video"
#define DEV_OST_OSD "/dev/ost/osd"
#define DEV_OST_FRONTEND "/dev/ost/frontend"
#define DEV_OST_SEC "/dev/ost/sec"
#define DEV_OST_DVR "/dev/ost/dvr"
#define DEV_OST_DEMUX "/dev/ost/demux"
#define DEV_OST_VIDEO "/dev/ost/video"
#define DEV_OST_AUDIO "/dev/ost/audio"
// The default priority for non-primary DVB cards:
#define DEFAULTPRIORITY -2
#define TS_SIZE 188
#define TS_SYNC_BYTE 0x47
#define PID_MASK_HI 0x1F
// The maximum time we wait before assuming that a recorded video data stream
// is broken:
#define MAXBROKENTIMEOUT 30 // seconds
static const char *OstName(const char *Name, int n)
{
static char buffer[_POSIX_PATH_MAX];
snprintf(buffer, sizeof(buffer), "%s%d", Name, n);
return buffer;
}
static int OstOpen(const char *Name, int n, int Mode, bool ReportError = false)
{
const char *FileName = OstName(Name, n);
int fd = open(FileName, Mode);
if (fd < 0 && ReportError)
LOG_ERROR_STR(FileName);
return fd;
}
int cDevice::numDevices = 0;
int cDevice::useDevice = 0;
cDevice *cDevice::device[MAXDEVICES] = { NULL };
cDevice *cDevice::primaryDevice = NULL;
cDevice::cDevice(int n)
{
frontendType = FrontendType(-1); // don't know how else to initialize this - there is no FE_UNKNOWN
siProcessor = NULL;
cardIndex = n;
// Devices that are present on all card types:
fd_frontend = OstOpen(DEV_OST_FRONTEND, n, O_RDWR);
// Devices that are only present on DVB-S cards:
fd_sec = OstOpen(DEV_OST_SEC, n, O_RDWR);
// Devices that are only present on cards with decoders:
fd_osd = OstOpen(DEV_OST_OSD, n, O_RDWR);
fd_video = OstOpen(DEV_OST_VIDEO, n, O_RDWR | O_NONBLOCK);
fd_audio = OstOpen(DEV_OST_AUDIO, n, O_RDWR | O_NONBLOCK);
// 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) {
siProcessor = new cSIProcessor(OstName(DEV_OST_DEMUX, n));
FrontendInfo feinfo;
if (ioctl(fd_frontend, FE_GET_INFO, &feinfo) >= 0)
frontendType = feinfo.type;
else
LOG_ERROR;
}
else
esyslog("ERROR: can't open video device %d", n);
dvrFileName = strdup(OstName(DEV_OST_DVR, CardIndex()));
active = false;
currentChannel = 0;
frequency = 0;
mute = false;
volume = Setup.CurrentVolume;
player = NULL;
for (int i = 0; i < MAXRECEIVERS; i++)
receiver[i] = NULL;
ca = -1;
}
cDevice::~cDevice()
{
delete dvrFileName;
delete siProcessor;
Detach(player);
for (int i = 0; i < MAXRECEIVERS; i++)
Detach(receiver[i]);
// We're not explicitly closing any device files here, since this sometimes
// caused segfaults. Besides, the program is about to terminate anyway...
}
void cDevice::SetUseDevice(int n)
{
if (n < MAXDEVICES)
useDevice |= (1 << n);
}
bool cDevice::SetPrimaryDevice(int n)
{
n--;
if (0 <= n && n < numDevices && device[n]) {
isyslog("setting primary device to %d", n + 1);
primaryDevice = device[n];
return true;
}
esyslog("invalid devive number: %d", n + 1);
return false;
}
cDevice *cDevice::GetDevice(int Ca, int Priority, int Frequency, int Vpid, bool *ReUse)
{
if (ReUse)
*ReUse = false;
cDevice *d = NULL;
int Provides[MAXDEVICES];
// Check which devices provide Ca:
for (int i = 0; i < numDevices; i++) {
if ((Provides[i] = device[i]->ProvidesCa(Ca)) != 0) { // this device is basicly able to do the job
//XXX+ dsyslog("GetDevice: %d %d %d %5d %5d", i, device[i]->HasDecoder(), device[i]->Receiving(), Frequency, device[i]->frequency);//XXX
if ( (!device[i]->HasDecoder() // it's a "budget card" which can receive multiple channels...
&& device[i]->frequency == Frequency // ...and it is tuned to the requested frequency...
&& device[i]->Receiving() // ...and is already receiving
// need not check priority - if a budget card is already receiving on the requested
// frequency, we can attach another receiver regardless of priority
)
|| (device[i]->HasDecoder() // it's a "full featured card" which can receive only one channel...
&& device[i]->frequency == Frequency // ...and it is tuned to the requested frequency...
&& device[i]->pidHandles[ptVideo].pid == Vpid // ...and the requested video PID...
&& device[i]->Receiving() // ...and is already receiving
// need not check priority - if a full featured card is already receiving the requested
// frequency and video PID, we can attach another receiver regardless of priority
)
) {
d = device[i];
if (ReUse)
*ReUse = true;
break;
}
if (Priority > device[i]->Priority() // Priority is high enough to use this device
&& (!d // we don't have a device yet, or...
|| device[i]->Priority() < d->Priority() // ...this one has an even lower Priority
|| (device[i]->Priority() == d->Priority() // ...same Priority...
&& Provides[i] < Provides[d->CardIndex()] // ...but this one provides fewer Ca values
)
)
)
d = device[i];
}
}
/*XXX+ too complex with multiple recordings per device
if (!d && Ca > MAXDEVICES) {
// We didn't find one the easy way, so now we have to try harder:
int ShiftLevel = -1;
for (int i = 0; i < numDevices; i++) {
if (Provides[i]) { // this device is basicly able to do the job, but for some reason we didn't get it above
int sl = device[i]->CanShift(Ca, Priority); // asks this device to shift its job to another device
if (sl >= 0 && (ShiftLevel < 0 || sl < ShiftLevel)) {
d = device[i]; // found one that can be shifted with the fewest number of subsequent shifts
ShiftLevel = sl;
}
}
}
}
XXX*/
return d;
}
void cDevice::SetCaCaps(void)
{
for (int d = 0; d < numDevices; d++) {
for (int i = 0; i < MAXCACAPS; i++)
device[d]->caCaps[i] = Setup.CaCaps[device[d]->CardIndex()][i];
}
}
bool cDevice::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 cDevice::Initialize(void)
{
numDevices = 0;
for (int i = 0; i < MAXDEVICES; i++) {
if (useDevice == 0 || (useDevice & (1 << i)) != 0) {
if (Probe(OstName(DEV_OST_FRONTEND, i)))
device[numDevices++] = new cDevice(i);
else
break;
}
}
primaryDevice = device[0];
if (numDevices > 0) {
isyslog("found %d video device%s", numDevices, numDevices > 1 ? "s" : "");
SetCaCaps();
}
else
esyslog("ERROR: no video device found, giving up!");
return numDevices > 0;
}
void cDevice::Shutdown(void)
{
for (int i = 0; i < numDevices; i++) {
delete device[i];
device[i] = NULL;
}
primaryDevice = NULL;
}
bool cDevice::GrabImage(const char *FileName, bool Jpeg, int Quality, int SizeX, int SizeY)
{
int videoDev = OstOpen(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 cDevice::SetVideoFormat(videoFormat_t Format)
{
if (HasDecoder())
CHECK(ioctl(fd_video, VIDEO_SET_FORMAT, Format));
}
// ptVideo ptAudio ptTeletext ptDolby ptOther
dmxPesType_t PesTypes[] = { DMX_PES_VIDEO, DMX_PES_AUDIO, DMX_PES_TELETEXT, DMX_PES_OTHER, DMX_PES_OTHER };
//#define PRINTPIDS(s) { char b[500]; char *q = b; q += sprintf(q, "%d %s ", CardIndex(), s); for (int i = 0; i < MAXPIDHANDLES; i++) q += sprintf(q, " %s%4d %d", i == ptOther ? "* " : "", pidHandles[i].pid, pidHandles[i].used); dsyslog(b); } //XXX+
#define PRINTPIDS(s)
bool cDevice::AddPid(int Pid, ePidType PidType)
{
if (Pid) {
int n = -1;
int a = -1;
for (int i = 0; i < MAXPIDHANDLES; i++) {
if (pidHandles[i].pid == Pid)
n = i;
else if (a < 0 && i >= ptOther && !pidHandles[i].used)
a = i;
}
dmxPesType_t PesType = PesTypes[ptOther];
if (n >= 0) {
// The Pid is already in use
if (++pidHandles[n].used == 2 && n <= ptTeletext) {
// It's a special PID that has to be switched into "tap" mode
PRINTPIDS("A");//XXX+
return SetPid(pidHandles[n].fd, PesTypes[n], Pid, DMX_OUT_TS_TAP);
}
PRINTPIDS("a");//XXX+
return true;
}
else if (PidType < ptOther) {
// The Pid is not yet in use and it is a special one
n = PidType;
PesType = PesTypes[PidType];
PRINTPIDS("B");//XXX+
}
else if (a >= 0) {
// The Pid is not yet in use and we have a free slot
n = a;
}
else
esyslog("ERROR: no free slot for PID %d", Pid);
if (n >= 0) {
pidHandles[n].pid = Pid;
pidHandles[n].fd = OstOpen(DEV_OST_DEMUX, CardIndex(), O_RDWR | O_NONBLOCK, true);
pidHandles[n].used = 1;
PRINTPIDS("C");//XXX+
return SetPid(pidHandles[n].fd, PesType, Pid, PidType <= ptTeletext ? DMX_OUT_DECODER : DMX_OUT_TS_TAP);
}
}
return true;
}
bool cDevice::DelPid(int Pid)
{
if (Pid) {
for (int i = 0; i < MAXPIDHANDLES; i++) {
if (pidHandles[i].pid == Pid) {
switch (--pidHandles[i].used) {
case 0: CHECK(ioctl(pidHandles[i].fd, DMX_STOP));//XXX+ is this necessary???
close(pidHandles[i].fd);
pidHandles[i].fd = -1;
pidHandles[i].pid = 0;
break;
case 1: if (i <= ptTeletext)
SetPid(pidHandles[i].fd, PesTypes[i], Pid, DMX_OUT_DECODER);
break;
}
PRINTPIDS("D");//XXX+
return pidHandles[i].used;
}
}
}
return false;
}
bool cDevice::SetPid(int fd, dmxPesType_t PesType, int Pid, dmxOutput_t Output)
{
if (Pid) {
CHECK(ioctl(fd, DMX_STOP));
if (Pid != 0x1FFF) {
dmxPesFilterParams pesFilterParams;
pesFilterParams.pid = Pid;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = Output;
pesFilterParams.pesType = PesType;
pesFilterParams.flags = DMX_IMMEDIATE_START;
//XXX+ pesFilterParams.flags = DMX_CHECK_CRC;//XXX
if (ioctl(fd, DMX_SET_PES_FILTER, &pesFilterParams) < 0) {
LOG_ERROR;
return false;
}
//XXX+ CHECK(ioctl(fd, DMX_SET_BUFFER_SIZE, KILOBYTE(32)));//XXX
//XXX+ CHECK(ioctl(fd, DMX_START));//XXX
}
}
return true;
}
eSetChannelResult cDevice::SetChannel(int ChannelNumber, int Frequency, char Polarization, int Diseqc, int Srate, int Vpid, int Apid, int Tpid, int Ca, int Pnr)
{
//XXX+StopTransfer();
//XXX+StopReplay();
cStatusMonitor::MsgChannelSwitch(this, 0);
// Must set this anyway to avoid getting stuck when switching through
// channels with 'Up' and 'Down' keys:
currentChannel = ChannelNumber;
// 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);
// If this card can't receive this channel, we must not actually switch
// the channel here, because that would irritate the driver when we
// start replaying in Transfer Mode immediately after switching the channel:
bool NeedsTransferMode = (IsPrimaryDevice() && !ProvidesCa(Ca));
if (!NeedsTransferMode) {
// Turn off current PIDs:
if (HasDecoder()) {
DelPid(pidHandles[ptVideo].pid);
DelPid(pidHandles[ptAudio].pid);
DelPid(pidHandles[ptTeletext].pid);
DelPid(pidHandles[ptDolby].pid);
}
FrontendParameters Frontend;
switch (frontendType) {
case FE_QPSK: { // DVB-S
// Frequency offsets:
unsigned int freq = 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;
}
Frontend.Frequency = freq * 1000UL;
Frontend.Inversion = INVERSION_AUTO;
Frontend.u.qpsk.SymbolRate = Srate * 1000UL;
Frontend.u.qpsk.FEC_inner = FEC_AUTO;
int volt = (Polarization == 'v' || Polarization == 'V') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18;
// DiseqC:
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 | ((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));
}
break;
case FE_QAM: { // DVB-C
// Frequency and symbol rate:
Frontend.Frequency = Frequency * 1000000UL;
Frontend.Inversion = INVERSION_AUTO;
Frontend.u.qam.SymbolRate = Srate * 1000UL;
Frontend.u.qam.FEC_inner = FEC_AUTO;
Frontend.u.qam.QAM = QAM_64;
}
break;
case FE_OFDM: { // DVB-T
// Frequency and OFDM paramaters:
Frontend.Frequency = 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;
}
break;
default:
esyslog("ERROR: attempt to set channel with unknown DVB frontend type");
return scrFailed;
}
// Tuning:
CHECK(ioctl(fd_frontend, FE_SET_FRONTEND, &Frontend));
// Wait for channel sync:
if (cFile::FileReady(fd_frontend, 5000)) {
FrontendEvent event;
int res = ioctl(fd_frontend, FE_GET_EVENT, &event);
if (res >= 0) {
if (event.type != FE_COMPLETION_EV) {
esyslog("ERROR: channel %d not sync'ed on DVB card %d!", ChannelNumber, CardIndex() + 1);
if (IsPrimaryDevice())
cThread::RaisePanic();
return scrFailed;
}
}
else
esyslog("ERROR %d in frontend get event (channel %d, card %d)", res, ChannelNumber, CardIndex() + 1);
}
else
esyslog("ERROR: timeout while tuning");
frequency = Frequency;
// PID settings:
if (HasDecoder()) {
if (!(AddPid(Vpid, ptVideo) && AddPid(Apid, ptAudio))) {//XXX+ dolby Dpid1!!! (if audio plugins are attached)
esyslog("ERROR: failed to set PIDs for channel %d", ChannelNumber);
return scrFailed;
}
if (IsPrimaryDevice())
AddPid(Tpid, ptTeletext);
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, true));
}
}
if (IsPrimaryDevice() && siProcessor)
siProcessor->SetCurrentServiceID(Pnr);
eSetChannelResult Result = scrOk;
// If this DVB card can't receive this channel, let's see if we can
// use the card that actually can receive it and transfer data from there:
if (NeedsTransferMode) {
cDevice *CaDevice = GetDevice(Ca, 0);
if (CaDevice && !CaDevice->Receiving()) {
if ((Result = CaDevice->SetChannel(ChannelNumber, Frequency, Polarization, Diseqc, Srate, Vpid, Apid, Tpid, Ca, Pnr)) == scrOk) {
//XXX+SetModeReplay();
//XXX+transferringFromDevice = CaDevice->StartTransfer(fd_video);
}
}
else
Result = scrNoTransfer;
}
if (HasDecoder()) {
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, false));
CHECK(ioctl(fd_video, VIDEO_SET_BLANK, false));
}
// Start setting system time:
if (Result == scrOk && siProcessor)
siProcessor->SetCurrentTransponder(Frequency);
cStatusMonitor::MsgChannelSwitch(this, ChannelNumber);
return Result;
}
bool cDevice::ToggleMute(void)
{
int OldVolume = volume;
mute = !mute;
SetVolume(0, mute);
volume = OldVolume;
return mute;
}
void cDevice::SetVolume(int Volume, bool Absolute)
{
if (HasDecoder()) {
volume = min(max(Absolute ? Volume : volume + Volume, 0), MAXVOLUME);
audioMixer_t am;
am.volume_left = am.volume_right = volume;
CHECK(ioctl(fd_audio, AUDIO_SET_MIXER, &am));
cStatusMonitor::MsgSetVolume(volume, Absolute);
if (volume > 0)
mute = false;
}
}
void cDevice::TrickSpeed(int Speed)
{
if (fd_video >= 0)
CHECK(ioctl(fd_video, VIDEO_SLOWMOTION, Speed));
}
void cDevice::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 cDevice::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 cDevice::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 cDevice::Mute(void)
{
if (fd_audio >= 0) {
CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, false));
CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, true));
}
}
void cDevice::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 cDevice::Replaying(void)
{
/*XXX+
if (replayBuffer && !replayBuffer->Active())
StopReplay();
return replayBuffer != NULL;
XXX*/
return player != NULL;
}
bool cDevice::Attach(cPlayer *Player)
{
if (Receiving()) {
esyslog("ERROR: attempt to attach a cPlayer while receiving on device %d - ignored", CardIndex() + 1);
return false;
}
if (HasDecoder()) {
if (player)
Detach(player);
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));
player = Player;
player->device = this;
player->deviceFileHandle = fd_video;
player->Activate(true);
return true;
}
return false;
}
void cDevice::Detach(cPlayer *Player)
{
if (Player && player == Player) {
player->Activate(false);
player->deviceFileHandle = -1;
player->device = NULL;
player = NULL;
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);
}
}
void cDevice::StopReplay(void)
{
if (player) {
Detach(player);
/*XXX+
if (IsPrimaryDevice()) {
// let's explicitly switch the channel back in case it was in Transfer Mode:
cChannel *Channel = Channels.GetByNumber(currentChannel);
if (Channel) {
Channel->Switch(this, false);
usleep(100000); // allow driver to sync in case a new replay will start immediately
}
}
XXX*/
}
}
int cDevice::PlayVideo(const uchar *Data, int Length)
{
if (fd_video >= 0)
return write(fd_video, Data, Length);
return -1;
}
int cDevice::PlayAudio(const uchar *Data, int Length)
{
//XXX+
return -1;
}
int cDevice::Priority(void)
{
if (IsPrimaryDevice() && !Receiving())
return Setup.PrimaryLimit - 1;
int priority = DEFAULTPRIORITY;
for (int i = 0; i < MAXRECEIVERS; i++) {
if (receiver[i])
priority = max(receiver[i]->priority, priority);
}
return priority;
}
int cDevice::CanShift(int Ca, int Priority, int UsedCards)
{
return -1;//XXX+ too complex with multiple recordings per device
// Test whether a receiving on this DVB device can be shifted to another one
// in order to perform a new receiving with the given Ca and Priority on this device:
int ShiftLevel = -1; // default means this device can't be shifted
if (UsedCards & (1 << CardIndex()) != 0)
return ShiftLevel; // otherwise we would get into a loop
if (Receiving()) {
if (ProvidesCa(Ca) // this device provides the requested Ca
&& (Ca != this->Ca() // the requested Ca is different from the one currently used...
|| Priority > this->Priority())) { // ...or the request comes from a higher priority
cDevice *d = NULL;
int Provides[MAXDEVICES];
UsedCards |= (1 << CardIndex());
for (int i = 0; i < numDevices; i++) {
if ((Provides[i] = device[i]->ProvidesCa(this->Ca())) != 0) { // this device is basicly able to do the job
if (device[i] != this) { // it is not _this_ device
int sl = device[i]->CanShift(this->Ca(), Priority, UsedCards); // this is the original Priority!
if (sl >= 0 && (ShiftLevel < 0 || sl < ShiftLevel)) {
d = device[i];
ShiftLevel = sl;
}
}
}
}
if (ShiftLevel >= 0)
ShiftLevel++; // adds the device's own shift
}
}
else if (Priority > this->Priority())
ShiftLevel = 0; // no shifting necessary, this device can do the job
return ShiftLevel;
}
int cDevice::ProvidesCa(int Ca)
{
if (Ca == CardIndex() + 1)
return 1; // exactly _this_ card was requested
if (Ca && Ca <= MAXDEVICES)
return 0; // a specific card was requested, but not _this_ one
int result = Ca ? 0 : 1; // by default every card can provide FTA
int others = Ca ? 1 : 0;
for (int i = 0; i < MAXCACAPS; i++) {
if (caCaps[i]) {
if (caCaps[i] == Ca)
result = 1;
else
others++;
}
}
return result ? result + others : 0;
}
bool cDevice::Receiving(void)
{
for (int i = 0; i < MAXRECEIVERS; i++) {
if (receiver[i])
return true;
}
return false;
}
void cDevice::Action(void)
{
dsyslog("receiver thread started on device %d (pid=%d)", CardIndex() + 1, getpid());
int fd_dvr = open(dvrFileName, O_RDONLY | O_NONBLOCK);
if (fd_dvr >= 0) {
pollfd pfd;
pfd.fd = fd_dvr;
pfd.events = pfd.revents = POLLIN;
uchar b[TS_SIZE];
time_t t = time(NULL);
active = true;
for (; active;) {
// Read data from the DVR device:
if (pfd.revents & POLLIN != 0) {
int r = read(fd_dvr, b, sizeof(b));
if (r == TS_SIZE) {
if (*b == TS_SYNC_BYTE) {
// We're locked on to a TS packet
int Pid = (((uint16_t)b[1] & PID_MASK_HI) << 8) | b[2];
// Distribute the packet to all attached receivers:
Lock();
for (int i = 0; i < MAXRECEIVERS; i++) {
if (receiver[i] && receiver[i]->WantsPid(Pid))
receiver[i]->Receive(b, TS_SIZE);
}
Unlock();
}
t = time(NULL);
}
else if (r > 0)
esyslog("ERROR: got incomplete TS packet (%d bytes)", r);//XXX+ TODO do we have to read the rest???
else if (r < 0) {
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;
break;
}
}
}
}
// Wait for more data to become available:
poll(&pfd, 1, 100);
//XXX+ put this into the recorder??? or give the receiver a flag whether it wants this?
if (time(NULL) - t > MAXBROKENTIMEOUT) {
esyslog("ERROR: video data stream broken on device %d", CardIndex() + 1);
cThread::EmergencyExit(true);
t = time(NULL);
}
}
close(fd_dvr);
}
else
LOG_ERROR_STR(dvrFileName);
dsyslog("receiver thread ended on device %d (pid=%d)", CardIndex() + 1, getpid());
}
bool cDevice::Attach(cReceiver *Receiver)
{
//XXX+ check for same transponder???
if (!Receiver)
return false;
if (Receiver->device == this)
return true;
StopReplay();
for (int i = 0; i < MAXRECEIVERS; i++) {
if (!receiver[i]) {
//siProcessor->SetStatus(false);//XXX+
for (int n = 0; n < MAXRECEIVEPIDS; n++) {
if (Receiver->pids[n])
AddPid(Receiver->pids[n]);//XXX+ retval!
else
break;
}
Receiver->Activate(true);
Lock();
Receiver->device = this;
receiver[i] = Receiver;
Unlock();
Start();
return true;
}
}
esyslog("ERROR: no free receiver slot!");
return false;
}
void cDevice::Detach(cReceiver *Receiver)
{
if (!Receiver || Receiver->device != this)
return;
bool receiversLeft = false;
for (int i = 0; i < MAXRECEIVERS; i++) {
if (receiver[i] == Receiver) {
Receiver->Activate(false);
Lock();
receiver[i] = NULL;
Receiver->device = NULL;
Unlock();
for (int n = 0; n < MAXRECEIVEPIDS; n++) {
if (Receiver->pids[n])
DelPid(Receiver->pids[n]);
else
break;
}
}
else if (receiver[i])
receiversLeft = true;
}
if (!receiversLeft) {
active = false;
Cancel(3);
}
}
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