126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
/*
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* $Id: assembler.c,v 1.1 2004/12/30 22:44:04 lordjaxom Exp $
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*/
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#include "client/assembler.h"
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#include "common.h"
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#include "tools/socket.h"
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#include "tools/select.h"
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#include <vdr/tools.h>
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#include <vdr/device.h>
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#include <vdr/ringbuffer.h>
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#include <unistd.h>
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cStreamdevAssembler::cStreamdevAssembler(cTBSocket *Socket)
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#if VDRVERSNUM >= 10300
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:cThread("Streamdev: UDP-TS Assembler")
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#endif
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{
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m_Socket = Socket;
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if (pipe(m_Pipe) != 0) {
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esyslog("streamdev-client: Couldn't open assembler pipe: %m");
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return;
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}
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fcntl(m_Pipe[0], F_SETFL, O_NONBLOCK);
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fcntl(m_Pipe[1], F_SETFL, O_NONBLOCK);
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m_Mutex.Lock();
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Start();
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}
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cStreamdevAssembler::~cStreamdevAssembler() {
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if (m_Active) {
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m_Active = false;
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WakeUp();
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Cancel(3);
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}
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close(m_Pipe[0]);
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close(m_Pipe[1]);
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}
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void cStreamdevAssembler::Action(void) {
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cTBSelect sel;
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uchar buffer[2048];
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bool fillup = true;
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const int rbsize = TS_SIZE * 5600;
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const int rbmargin = TS_SIZE * 2;
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const int rbminfill = rbmargin * 50;
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cRingBufferLinear ringbuf(rbsize, rbmargin, true);
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#if VDRVERSNUM < 10300
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isyslog("streamdev-client: UDP-TS Assembler thread started (pid=%d)",
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getpid());
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#endif
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m_Mutex.Lock();
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m_Active = true;
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while (m_Active) {
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sel.Clear();
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if (ringbuf.Available() < rbsize * 80 / 100)
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sel.Add(*m_Socket, false);
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if (ringbuf.Available() > rbminfill) {
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if (fillup) {
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Dprintf("giving signal\n");
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m_WaitFill.Broadcast();
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m_Mutex.Unlock();
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fillup = false;
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}
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sel.Add(m_Pipe[1], true);
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}
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if (sel.Select(1500) < 0) {
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if (!m_Active) // Exit was requested
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break;
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esyslog("streamdev-client: Fatal error: %m");
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Dprintf("streamdev-client: select failed (%m)\n");
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m_Active = false;
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break;
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}
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if (sel.CanRead(*m_Socket)) {
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int b;
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if ((b = m_Socket->Read(buffer, sizeof(buffer))) < 0) {
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esyslog("streamdev-client: Couldn't read from server: %m");
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Dprintf("streamdev-client: read failed (%m)\n");
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m_Active = false;
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break;
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}
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if (b == 0)
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m_Active = false;
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else
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ringbuf.Put(buffer, b);
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}
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if (sel.CanWrite(m_Pipe[1])) {
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int recvd;
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const uchar *block = ringbuf.Get(recvd);
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if (block && recvd > 0) {
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int result;
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if (recvd > ringbuf.Available() - rbminfill)
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recvd = ringbuf.Available() - rbminfill;
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if ((result = write(m_Pipe[1], block, recvd)) == -1) {
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esyslog("streamdev-client: Couldn't write to VDR: %m"); // TODO
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Dprintf("streamdev-client: write failed (%m)\n");
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m_Active = false;
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break;
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}
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ringbuf.Del(result);
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}
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}
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}
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#if VDRVERSNUM < 10300
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isyslog("streamdev-client: UDP-TS Assembler thread stopped", getpid());
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#endif
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}
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void cStreamdevAssembler::WaitForFill(void) {
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m_WaitFill.Wait(m_Mutex);
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m_Mutex.Unlock();
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}
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