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vdr-plugin-iptv/streamer.c
2007-10-09 17:58:17 +00:00

108 lines
2.5 KiB
C

/*
* streamer.c: IPTV plugin for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
* $Id: streamer.c,v 1.20 2007/10/09 17:58:17 ajhseppa Exp $
*/
#include <vdr/thread.h>
#include <vdr/ringbuffer.h>
#include "common.h"
#include "streamer.h"
cIptvStreamer::cIptvStreamer(cRingBufferLinear* RingBuffer, cMutex* Mutex)
: cThread("IPTV streamer"),
ringBuffer(RingBuffer),
mutex(Mutex),
protocol(NULL)
{
debug("cIptvStreamer::cIptvStreamer()\n");
}
cIptvStreamer::~cIptvStreamer()
{
debug("cIptvStreamer::~cIptvStreamer()\n");
// Close the protocol
Close();
}
void cIptvStreamer::Action(void)
{
debug("cIptvStreamer::Action(): Entering\n");
// Do the thread loop
while (Running()) {
if (ringBuffer && mutex && protocol && ringBuffer->Free()) {
unsigned char *buffer = NULL;
int length = protocol->Read(&buffer);
if (length >= 0) {
cIptvStreamerStatistics::AddStatistic(length);
mutex->Lock();
int p = ringBuffer->Put(buffer, length);
if (p != length && Running())
ringBuffer->ReportOverflow(length - p);
mutex->Unlock();
cIptvBufferStatistics::AddStatistic(ringBuffer->Available(),
ringBuffer->Free());
}
else
cCondWait::SleepMs(100); // to reduce cpu load
}
else
cCondWait::SleepMs(100); // and avoid busy loop
}
debug("cIptvStreamer::Action(): Exiting\n");
}
bool cIptvStreamer::Open(void)
{
debug("cIptvStreamer::Open()\n");
// Open the protocol
if (protocol)
if(!protocol->Open())
return false;
// Start thread
Start();
return true;
}
bool cIptvStreamer::Close(void)
{
debug("cIptvStreamer::Close()\n");
// Stop thread
if (Running())
Cancel(3);
// Close the protocol
if (protocol)
protocol->Close();
return true;
}
bool cIptvStreamer::Set(const char* Address, const int Port, cIptvProtocolIf* Protocol)
{
debug("cIptvStreamer::Set(): %s:%d\n", Address, Port);
if (!isempty(Address)) {
// Update protocol; Close the existing one if changed
if (protocol != Protocol) {
if (protocol)
protocol->Close();
protocol = Protocol;
if (protocol)
protocol->Open();
}
// Set protocol address and port
if (protocol)
protocol->Set(Address, Port);
}
return true;
}
cString cIptvStreamer::GetInformation(void)
{
//debug("cIptvStreamer::GetInformation()");
if (protocol)
return protocol->GetInformation();
return NULL;
}