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/*
* OSD Picture in Picture plugin for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*/
#include "receiver.h"
#include "pes.h"
#include <vdr/channels.h>
#include <vdr/remux.h>
#include <vdr/ringbuffer.h>
cOsdPipReceiver::cOsdPipReceiver(const cChannel *Channel,
cRingBufferFrame *ESBuffer):
cReceiver(Channel->Ca(), 0, 2, Channel->Vpid(), Channel->Apid1()) {
m_TSBuffer = new cRingBufferLinear(MEGABYTE(3), TS_SIZE * 2, true);
m_ESBuffer = ESBuffer;
m_Remux = new cRemux(Channel->Vpid(), Channel->Apid1(), 0, 0, 0, true);
m_Active = false;
}
cOsdPipReceiver::~cOsdPipReceiver() {
Detach();
delete m_Remux;
delete m_TSBuffer;
}
void cOsdPipReceiver::Activate(bool On) {
if (On)
Start();
else if (m_Active) {
m_Active = false;
Cancel(3);
}
}
void cOsdPipReceiver::Receive(uchar *Data, int Length) {
int put = m_TSBuffer->Put(Data, Length);
if (put != Length)
esyslog("osdpip: ringbuffer overflow (%d bytes dropped)", Length - put);
}
void cOsdPipReceiver::Action(void) {
dsyslog("osdpip: receiver thread started (pid=%d)", getpid());
m_Active = true;
unsigned char NewPictureType = NO_PICTURE;
unsigned char CurPictureType = NO_PICTURE;
unsigned char VideoBuffer[200000];
int VideoBufferPos = 0;
while (m_Active) {
int r;
const uchar *b = m_TSBuffer->Get(r);
if (b) {
int Count = r, Result;
uchar *p = m_Remux->Process(b, Count, Result, &NewPictureType);
m_TSBuffer->Del(Count);
if (p) {
if (NewPictureType != NO_PICTURE) {
m_ESBuffer->Put(new cFrame(VideoBuffer, VideoBufferPos, ftVideo, CurPictureType));
CurPictureType = NewPictureType;
VideoBufferPos = 0;
}
cPESPacket Packet(p, Result);
int PayloadLength = 0;
unsigned char * PayloadData = Packet.Payload(PayloadLength);
if ((Packet.StreamId() & 0xF0) == 0xE0) { // video packet
memcpy(&VideoBuffer[VideoBufferPos], PayloadData, PayloadLength);
VideoBufferPos += PayloadLength;
}
}
} else
usleep(1); // this keeps the CPU load low
}
dsyslog("osdpip: receiver thread ended (pid=%d)", getpid());
}
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