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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* decoder.cc
*
* Mon Mar 6 20:14:30 CET 2006
* Copyright 2006 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of MIaV.
*
* MIaV is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MIaV is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MIaV; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "decoder.h"
#include "info.h"
#include "transcoder.h"
//#define READ_DV_FROM_FILE
#include "dv.h"
#ifdef READ_DV_FROM_FILE
#include "dvfile.h"
#else/* READ_DV_FROM_FILE*/
#include "dv1394.h"
#endif/* READ_DV_FROM_FILE*/
#include <QEvent>
#include <QApplication>
#include "control.h"
#include "libdv_wrapper.h"
Decoder::Decoder()
{
running = true;
pframe = NULL;
qApp->installEventFilter(this);
}
Decoder::~Decoder()
{
}
void Decoder::run()
{
bool newconnection = true;
// closesem.acquire(); // Lock the shutdown process
#ifdef READ_DV_FROM_FILE
dvfile reader;
#else/* READ_DV_FROM_FILE*/
dv1394 reader;
reader.connect();
#endif/* READ_DV_FROM_FILE*/
LibDVWrapper dvdecoder(DV::ColorBest, DV::PAL, DV::YUV_422);
while(running) {
Frame *dvframe = reader.readFrame();
if(!dvframe) continue; // An empty frame
Frame *yuvframe = dvdecoder.decode(dvframe); // Decode the DV frame to YUV422 and PCM audio
if(dvframe->vframe) delete dvframe->vframe;
if(dvframe->aframe) delete dvframe->aframe;
delete dvframe;
if(!yuvframe) continue; // An error ocurred
if(MIaV::control.isFrozen() == false) {
if(yuvframe->vformat != VF_YUV422) {
fprintf(stderr, "Wrong videoformat in Decoder, expected VF_YUV422, got %i\n", yuvframe->vformat);
} else {
if(!pframe) {
fprintf(stderr, "PFrame data not set!\n");
} else {
pmutex.lock();
memcpy(pframe, yuvframe->vframe, yuvframe->vframesize);
pmutex.unlock();
}
}
}
if(MIaV::control.isRecording()) {
if(newconnection) {
NetworkSender *sender = new NetworkSender(MIaV::control.getCpr());
sendersmutex.lock();
senders.push_back(sender);
sendersmutex.unlock();
sender->start();
newconnection = false;
}
sendersmutex.lock();
if(senders.isEmpty() == false)
senders.back()->pushFrame(yuvframe,
MIaV::control.getShot(),
MIaV::control.getFreeze());
sendersmutex.unlock();
} else {
sendersmutex.lock();
// Remove idle senders
QLinkedList<NetworkSender*>::iterator i;
for (i = senders.begin(); i != senders.end(); i++) {
NetworkSender *ns = *i;
if(ns->queueSize() == 0) {
i = senders.erase(i);
ns->stop();
delete ns;
}
}
sendersmutex.unlock();
if(yuvframe->vframe) delete yuvframe->vframe;
if(yuvframe->aframe) delete yuvframe->aframe;
delete yuvframe;
newconnection = true;
}
}
// closesem.release(); // Unlock the shutdown process
}
void Decoder::setPFrameData(char *pframe)
{
pmutex.lock();
this->pframe = pframe;
pmutex.unlock();
}
void Decoder::pframeAcquire()
{
pmutex.lock();;
}
void Decoder::pframeRelease()
{
pmutex.unlock();
}
void Decoder::snapshot(unsigned char *rgb)
{
pmutex.lock();
Frame frame(pframe, 720*576*2, VF_YUV422);
Frame *brg0 = transcode(&frame, VF_BRG0, (char*)rgb, 720*576*4);
if(brg0) delete brg0; // We don't need the actual frameobject
else {
// Some error occurred!
}
pmutex.unlock();
}
bool Decoder::eventFilter(QObject *o, QEvent *e)
{
if (e->type() == QEvent::Close) {
// printf("QUIT from: %p, this: %p, testing: %p\n", o, this, qApp->activeWindow());
if(qApp->activeWindow() == (QWidget*)o) { // Ignore close events from non top level widgets
running = false; // Tell the thread to stop.
sleep(1);// Wait for the thread to stop. (The ugly way!)
// closesem.acquire(); // Wait for the thread to stop.
}
}
// standard event processing
return false;
}
std::vector<thread_status_t> Decoder::status()
{
std::vector<thread_status_t> v;
sendersmutex.lock();
QLinkedList<NetworkSender*>::iterator i;
for(i = senders.begin(); i != senders.end(); i++) {
NetworkSender *ns = *i;
// TODO: Cleanup (get both in one call)
thread_status_t s;
s.queuelen = ns->queueSize();
s.fps = ns->getfps();
v.push_back(s);
}
sendersmutex.unlock();
return v;
}
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