vdr-plugin-streamdev/client/device.c
schmirl 924cf6e4d0 Workaround for problem when switching from one encrypted channel to an other
Yet it's not quite clear if this is really a proper fix. There have been
contradictory reports (#476).
2008-10-02 06:56:36 +00:00

288 lines
6.6 KiB
C

/*
* $Id: device.c,v 1.20 2008/10/02 06:56:36 schmirl Exp $
*/
#include "client/device.h"
#include "client/setup.h"
#include "client/filter.h"
#include "tools/select.h"
#include <vdr/channels.h>
#include <vdr/ringbuffer.h>
#include <vdr/eit.h>
#include <vdr/timers.h>
#include <time.h>
#include <iostream>
using namespace std;
#define VIDEOBUFSIZE MEGABYTE(3)
cStreamdevDevice *cStreamdevDevice::m_Device = NULL;
cStreamdevDevice::cStreamdevDevice(void) {
m_Channel = NULL;
m_TSBuffer = NULL;
m_Filters = new cStreamdevFilters;
StartSectionHandler();
isyslog("streamdev-client: got device number %d", CardIndex() + 1);
m_Device = this;
m_Pids = 0;
m_DvrClosed = true;
if (StreamdevClientSetup.SyncEPG)
ClientSocket.SynchronizeEPG();
}
cStreamdevDevice::~cStreamdevDevice() {
Dprintf("Device gets destructed\n");
Lock();
m_Device = NULL;
m_Filters->SetConnection(-1);
ClientSocket.Quit();
ClientSocket.Reset();
Unlock();
Cancel(3);
DELETENULL(m_Filters);
DELETENULL(m_TSBuffer);
}
bool cStreamdevDevice::ProvidesSource(int Source) const {
Dprintf("ProvidesSource, Source=%d\n", Source);
return true;
}
bool cStreamdevDevice::ProvidesTransponder(const cChannel *Channel) const
{
Dprintf("ProvidesTransponder\n");
return true;
}
bool cStreamdevDevice::IsTunedToTransponder(const cChannel *Channel)
{
bool res = false;
if (ClientSocket.DataSocket(siLive) != NULL
&& TRANSPONDER(Channel, m_Channel))
res = true;
return res;
}
bool cStreamdevDevice::ProvidesChannel(const cChannel *Channel, int Priority,
bool *NeedsDetachReceivers) const {
bool res = false;
bool prio = Priority < 0 || Priority > this->Priority();
bool ndr = false;
if (!StreamdevClientSetup.StartClient)
return false;
Dprintf("ProvidesChannel, Channel=%s, Prio=%d\n", Channel->Name(), Priority);
if (ClientSocket.DataSocket(siLive) != NULL
&& TRANSPONDER(Channel, m_Channel))
res = true;
else {
res = prio && ClientSocket.ProvidesChannel(Channel, Priority);
ndr = true;
}
if (NeedsDetachReceivers)
*NeedsDetachReceivers = ndr;
Dprintf("prov res = %d, ndr = %d\n", res, ndr);
return res;
}
bool cStreamdevDevice::SetChannelDevice(const cChannel *Channel,
bool LiveView) {
Dprintf("SetChannelDevice Channel: %s, LiveView: %s\n", Channel->Name(),
LiveView ? "true" : "false");
if (LiveView)
return false;
if (ClientSocket.DataSocket(siLive) != NULL
&& TRANSPONDER(Channel, m_Channel)
&& Channel->Ca() < CA_ENCRYPTED_MIN)
return true;
DetachAllReceivers();
m_Channel = Channel;
bool r = ClientSocket.SetChannelDevice(m_Channel);
Dprintf("setchanneldevice r=%d\n", r);
return r;
}
bool cStreamdevDevice::SetPid(cPidHandle *Handle, int Type, bool On) {
Dprintf("SetPid, Pid=%d, Type=%d, On=%d, used=%d\n", Handle->pid, Type, On,
Handle->used);
LOCK_THREAD;
if (On && !m_TSBuffer) {
Dprintf("SetPid: no data connection -> OpenDvr()");
OpenDvrInt();
}
bool res = true;
if (Handle->pid && (On || !Handle->used)) {
res = ClientSocket.SetPid(Handle->pid, On);
m_Pids += (!res) ? 0 : On ? 1 : -1;
if (m_Pids < 0)
m_Pids = 0;
if(m_Pids < 1 && m_DvrClosed) {
Dprintf("SetPid: 0 pids left -> CloseDvr()");
CloseDvrInt();
}
}
return res;
}
bool cStreamdevDevice::OpenDvrInt(void) {
Dprintf("OpenDvrInt\n");
LOCK_THREAD;
CloseDvrInt();
if (m_TSBuffer) {
Dprintf("cStreamdevDevice::OpenDvrInt(): DVR connection already open\n");
return true;
}
Dprintf("cStreamdevDevice::OpenDvrInt(): Connecting ...\n");
if (ClientSocket.CreateDataConnection(siLive)) {
m_TSBuffer = new cTSBuffer(*ClientSocket.DataSocket(siLive), MEGABYTE(2), CardIndex() + 1);
return true;
}
esyslog("cStreamdevDevice::OpenDvrInt(): DVR connection FAILED");
return false;
}
bool cStreamdevDevice::OpenDvr(void) {
Dprintf("OpenDvr\n");
LOCK_THREAD;
m_DvrClosed = false;
return OpenDvrInt();
}
void cStreamdevDevice::CloseDvrInt(void) {
Dprintf("CloseDvrInt\n");
LOCK_THREAD;
if (ClientSocket.CheckConnection()) {
if (!m_DvrClosed) {
Dprintf("cStreamdevDevice::CloseDvrInt(): m_DvrClosed=false -> not closing yet\n");
return;
}
if (m_Pids > 0) {
Dprintf("cStreamdevDevice::CloseDvrInt(): %d active pids -> not closing yet\n", m_Pids);
return;
}
} else {
Dprintf("cStreamdevDevice::CloseDvrInt(): Control connection gone !\n");
}
Dprintf("cStreamdevDevice::CloseDvrInt(): Closing DVR connection\n");
// Hack for VDR 1.5.x clients (sometimes sending ABRT after TUNE)
// TODO: Find a clean solution to fix this
ClientSocket.SetChannelDevice(m_Channel);
ClientSocket.CloseDvr();
DELETENULL(m_TSBuffer);
}
void cStreamdevDevice::CloseDvr(void) {
Dprintf("CloseDvr\n");
LOCK_THREAD;
m_DvrClosed = true;
CloseDvrInt();
}
bool cStreamdevDevice::GetTSPacket(uchar *&Data) {
if (m_TSBuffer && m_Device) {
Data = m_TSBuffer->Get();
#if 1 // TODO: this should be fixed in vdr cTSBuffer
// simple disconnect detection
static int m_TSFails = 0;
if (!Data) {
LOCK_THREAD;
if(!ClientSocket.DataSocket(siLive)) {
return false; // triggers CloseDvr() + OpenDvr() in cDevice
}
cPoller Poller(*ClientSocket.DataSocket(siLive));
errno = 0;
if (Poller.Poll() && !errno) {
char tmp[1];
if (recv(*ClientSocket.DataSocket(siLive), tmp, 1, MSG_PEEK) == 0 && !errno) {
esyslog("cStreamDevice::GetTSPacket: GetChecked: NOTHING (%d)", m_TSFails);
m_TSFails++;
if (m_TSFails > 10) {
isyslog("cStreamdevDevice::GetTSPacket(): disconnected");
m_Pids = 0;
CloseDvrInt();
m_TSFails = 0;
return false;
}
return true;
}
}
m_TSFails = 0;
}
#endif
return true;
}
return false;
}
int cStreamdevDevice::OpenFilter(u_short Pid, u_char Tid, u_char Mask) {
Dprintf("OpenFilter\n");
if (!StreamdevClientSetup.StreamFilters)
return -1;
if (!ClientSocket.DataSocket(siLiveFilter)) {
if (ClientSocket.CreateDataConnection(siLiveFilter)) {
m_Filters->SetConnection(*ClientSocket.DataSocket(siLiveFilter));
} else {
isyslog("cStreamdevDevice::OpenFilter: connect failed: %m");
return -1;
}
}
if (ClientSocket.SetFilter(Pid, Tid, Mask, true))
return m_Filters->OpenFilter(Pid, Tid, Mask);
return -1;
}
bool cStreamdevDevice::Init(void) {
if (m_Device == NULL && StreamdevClientSetup.StartClient)
new cStreamdevDevice;
return true;
}
bool cStreamdevDevice::ReInit(void) {
if(m_Device) {
m_Device->Lock();
m_Device->m_Filters->SetConnection(-1);
m_Device->m_Pids = 0;
}
ClientSocket.Quit();
ClientSocket.Reset();
if (m_Device != NULL) {
//DELETENULL(m_Device->m_TSBuffer);
m_Device->Unlock();
}
return StreamdevClientSetup.StartClient ? Init() : true;
}