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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* mov_encoder_thread.cc
*
* Tue May 17 16:00:01 CEST 2005
* Copyright 2005 Bent Bisballe
* 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.
*/
/*
* $Id$
*/
/*
* $Log$
* Revision 1.6 2005/05/19 14:10:22 deva
*
* Multithreading rulez?
*
* Revision 1.5 2005/05/19 10:55:49 deva
* Test for block encoding of length strlen("IPIPP").
*
* Revision 1.4 2005/05/17 19:16:26 deva
* Made new mpeg writer work, with proper file permissions.
*
* Revision 1.3 2005/05/17 15:13:15 deva
* *** empty log message ***
*
* Revision 1.2 2005/05/17 15:12:51 deva
* Fixed file rights (All read on files and directories, and all execute on directories).
*
* Revision 1.1 2005/05/17 14:30:56 deva
* Added code, preparing threaded encoding.
*/
#include <config.h>
#include "mov_encoder_thread.h"
#include <errno.h>
#include "miav_config.h"
MovEncoderThread::MovEncoderThread(const char *filename)
{
file = open(filename,
O_CREAT | O_WRONLY, //| O_LARGEFILE
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
if(file == -1) {
fprintf(stderr, "Could not open file for writing: %s\n", strerror(errno));
return;
}
threads = config->readInt("encoding_threads");
for(int cnt = 0; cnt < threads; cnt++) {
encs.push_back(new MovEncoder());
tids.push_back(new pthread_t);
pthread_create (tids[cnt], NULL, thread_run, encs[cnt]);
}
current_encoder = 0;
current_frame = 0;
num_frames_in_block = config->readString("frame_sequence")->length();
fprintf(stderr, "Frame sequence length [%d]\n", num_frames_in_block); fflush(stderr);
inputqueue = new Queue<Frame>();
}
MovEncoderThread::~MovEncoderThread()
{
fprintf(stderr, "Clear - encode last[%d]\n", current_encoder); fflush(stderr);
// Push any hanging frames.
encs[current_encoder]->encodeSequence(inputqueue);
fprintf(stderr, "Clear - Readback\n"); fflush(stderr);
/*
* Readback mode
*/
for(int cnt = 0; cnt <= current_encoder; cnt++) {
// fprintf(stderr, "pop[%d]-", cnt); fflush(stderr);
Queue<Frame> *outputqueue = encs[cnt]->getResultSequence();
Frame *f;
while((f = outputqueue->pop())) {
int i = write(file, f->data, f->size);
if(i == -1) perror("Write failed");
// fprintf(stderr, "wrote[%d]-", i); fflush(stderr);
delete f;
}
}
fprintf(stderr, "Clear - join threads\n"); fflush(stderr);
for(int cnt = 0; cnt < threads; cnt++) {
encs[cnt]->running = false;
encs[cnt]->encodeSequence(NULL);
pthread_join(*tids[cnt], NULL);
delete encs[cnt];
}
fprintf(stderr, "Clear - close file\n"); fflush(stderr);
if(file != -1) close(file);
fprintf(stderr, "Clear - done\n"); fflush(stderr);
}
void MovEncoderThread::encode(Frame* frame)
{
if(file == -1) return;
// fprintf(stderr, "build[%d]-", current_encoder); fflush(stderr);
inputqueue->bpush(frame);
/*
* Encode mode
*/
// Switch frame
current_frame++;
if(current_frame >= num_frames_in_block) {
// fprintf(stderr, "push[%d]-", current_encoder); fflush(stderr);
encs[current_encoder]->encodeSequence(inputqueue);
inputqueue = new Queue<Frame>();
// Switch encoder
current_frame = 0;
current_encoder++;
if(current_encoder >= threads) {
// switch mode
/*
* Readback mode
*/
for(int cnt = 0; cnt < threads; cnt++) {
// fprintf(stderr, "pop[%d]-", cnt); fflush(stderr);
Queue<Frame> *outputqueue = encs[cnt]->getResultSequence();
Frame *f;
while((f = outputqueue->pop())) {
int i = write(file, f->data, f->size);
if(i == -1) perror("Write failed");
// fprintf(stderr, "wrote[%d]-", i); fflush(stderr);
delete f;
}
}
current_encoder = 0;
}
}
}
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