100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
/*
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* $Id: streamer.c,v 1.1 2004/12/30 22:44:21 lordjaxom Exp $
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*/
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#include <vdr/ringbuffer.h>
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#include <vdr/device.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "server/streamer.h"
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#include "server/suspend.h"
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#include "server/setup.h"
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#include "tools/socket.h"
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#include "common.h"
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#define VIDEOBUFSIZE MEGABYTE(3)
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#define MAXBLOCKSIZE TS_SIZE*10
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cStreamdevStreamer::cStreamdevStreamer(const char *Name)
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#if VDRVERSNUM >= 10300
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:cThread("Streamdev: " + (cTBString)Name)
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#endif
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{
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m_Active = false;
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m_Receivers = 0;
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m_Buffer = NULL;
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m_Name = Name;
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m_Socket = NULL;
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m_RingBuffer = new cRingBufferLinear(VIDEOBUFSIZE, TS_SIZE * 2, true);
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}
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cStreamdevStreamer::~cStreamdevStreamer() {
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Stop();
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if (m_Buffer != NULL) delete[] m_Buffer;
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delete m_RingBuffer;
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}
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void cStreamdevStreamer::Start(cTBSocket *Socket) {
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m_Socket = Socket;
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Attach();
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if (!m_Active)
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cThread::Start();
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}
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void cStreamdevStreamer::Stop(void) {
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if (m_Active) {
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Dprintf("stopping live streamer\n");
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m_Active = false;
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Cancel(3);
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}
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}
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uchar *cStreamdevStreamer::Process(const uchar *Data, int &Count, int &Result) {
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if (m_Buffer == NULL)
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m_Buffer = new uchar[MAXBLOCKSIZE];
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if (Count > MAXBLOCKSIZE)
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Count = MAXBLOCKSIZE;
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memcpy(m_Buffer, Data, Count);
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Result = Count;
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return m_Buffer;
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}
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void cStreamdevStreamer::Action(void) {
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int max = 0;
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#if VDRVERSNUM < 10300
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isyslog("Streamdev: %s thread started (pid=%d)", m_Name, getpid());
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#endif
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m_Active = true;
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while (m_Active) {
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int recvd;
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const uchar *block = m_RingBuffer->Get(recvd);
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if (block && recvd > 0) {
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int result = 0;
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uchar *sendBlock = Process(block, recvd, result);
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m_RingBuffer->Del(recvd);
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if (result > max) max = result;
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if (!m_Socket->TimedWrite(sendBlock, result, 150)) {
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if (errno != ETIMEDOUT) {
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esyslog("ERROR: Streamdev: Couldn't write data: %s", strerror(errno));
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m_Active = false;
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}
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}
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} else
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usleep(1); // this keeps the CPU load low (XXX: waiting buffers)
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}
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Dprintf("Max. Transmit Blocksize was: %d\n", max);
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#if VDRVERSNUM < 10300
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isyslog("Streamdev: %s thread stopped", m_Name);
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#endif
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}
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