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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 "setup.h"
#include <vdr/channels.h>
#include <vdr/remux.h>
#include <vdr/ringbuffer.h>
cOsdPipReceiver::cOsdPipReceiver(const cChannel *Channel,
cRingBufferFrame *ESBuffer):
#if VDRVERSNUM >= 10318
cReceiver(Channel->Ca(), 0, 2, Channel->Vpid(), Channel->Apid(0))
#else
cReceiver(Channel->Ca(), 0, 2, Channel->Vpid(), Channel->Apid1())
#endif
{
m_TSBuffer = new cRingBufferLinear(MEGABYTE(3), TS_SIZE * 2, true);
#if VDRVERSNUM >= 10313
m_TSBuffer->SetTimeouts(0, 100);
#endif
m_ESBuffer = ESBuffer;
#if VDRVERSNUM >= 10318
m_Remux = new cRemux(Channel->Vpid(), Channel->Apid(0), 0, 0, 0, true);
#else
m_Remux = new cRemux(Channel->Vpid(), Channel->Apid1(), 0, 0, 0, true);
#endif
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)
#if VDRVERSNUM < 10313
esyslog("osdpip: ringbuffer overflow (%d bytes dropped)", Length - put);
#else
m_TSBuffer->ReportOverflow(Length - put);
#endif
}
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) {
#if VDRVERSNUM < 10313
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) {
if ((OsdPipSetup.FrameMode == kFrameModeI && CurPictureType == I_FRAME) ||
(OsdPipSetup.FrameMode == kFrameModeIP && (CurPictureType == I_FRAME || CurPictureType == P_FRAME)) ||
(OsdPipSetup.FrameMode == kFrameModeIPB))
{
cFrame * frame = new cFrame(VideoBuffer, VideoBufferPos, ftVideo, CurPictureType);
if (!m_ESBuffer->Put(frame))
{
delete frame;
}
}
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
#else
int r;
const uchar *b = m_TSBuffer->Get(r);
if (b) {
int Count = m_Remux->Put(b, r);
if (Count)
m_TSBuffer->Del(Count);
}
int Result;
uchar *p = m_Remux->Get(Result, &NewPictureType);
if (p) {
if (NewPictureType != NO_PICTURE) {
if ((OsdPipSetup.FrameMode == kFrameModeI && CurPictureType == I_FRAME) ||
(OsdPipSetup.FrameMode == kFrameModeIP && (CurPictureType == I_FRAME || CurPictureType == P_FRAME)) ||
(OsdPipSetup.FrameMode == kFrameModeIPB))
{
cFrame * frame = new cFrame(VideoBuffer, VideoBufferPos, ftVideo, CurPictureType);
if (!m_ESBuffer->Put(frame))
{
delete frame;
}
}
CurPictureType = NewPictureType;
VideoBufferPos = 0;
}
int t = 0;
int l = ((p[4] << 8) | p[5]) + 6;
while (t + l <= Result) {
cPESPacket Packet(p + t, l);
int PayloadLength = 0;
unsigned char * PayloadData = Packet.Payload(PayloadLength);
if ((Packet.StreamId() & 0xF0) == 0xE0) { // video packet
memcpy(&VideoBuffer[VideoBufferPos], PayloadData, PayloadLength);
VideoBufferPos += PayloadLength;
}
t += l;
if (t >= Result)
break;
l = ((p[t + 4] << 8) | p[t + 5]) + 6;
}
m_Remux->Del(t);
}
#endif
}
dsyslog("osdpip: receiver thread ended (pid=%d)", getpid());
}
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