/***************************************************************************
* Copyright (C) 2011 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* This program 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. *
* *
* This program 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 this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <stdio.h>
#include <QStringList>
#include <qmmp/inputsourcefactory.h>
#include <qmmp/decoderfactory.h>
#include <qmmp/metadatamanager.h>
#include <qmmpui/metadataformatter.h>
#include <QtEndian>
#include <QSettings>
#include <QDesktopServices>
#include "converter.h"
Converter::Converter(QObject *parent) : QThread(parent)
{}
void Converter::add(const QStringList &urls)
{
foreach(QString url, urls)
add(url);
}
void Converter::add(const QString &url)
{
InputSource *source = InputSource::create(url, this);
if(!source->initialize())
{
delete source;
qWarning("Converter: Invalid url");
return;
}
if(source->ioDevice())
{
if(source->ioDevice()->open(QIODevice::ReadOnly))
{
source->deleteLater();
qWarning("Converter: cannot open input stream, error: %s",
qPrintable(source->ioDevice()->errorString()));
return;
}
}
DecoderFactory *factory = 0;
if(!source->url().contains("://"))
factory = Decoder::findByPath(source->url());
if(!factory)
factory = Decoder::findByMime(source->contentType());
if(!factory && source->ioDevice() && source->url().contains("://")) //ignore content of local files
factory = Decoder::findByContent(source->ioDevice());
if(!factory && source->url().contains("://"))
factory = Decoder::findByProtocol(source->url().section("://",0,0));
if(!factory)
{
qWarning("Converter: unsupported file format");
source->deleteLater();
return;
}
qDebug("Converter: selected decoder: %s",qPrintable(factory->properties().shortName));
if(factory->properties().noInput && source->ioDevice())
source->ioDevice()->close();
Decoder *decoder = factory->create(source->url(), source->ioDevice());
if(!decoder->initialize())
{
qWarning("Converter: invalid file format");
source->deleteLater();
delete decoder;
return;
}
m_decoders.enqueue(decoder);
m_inputs.insert(decoder, source);
if(!decoder->totalTime())
source->setOffset(-1);
source->setParent(this);
}
void Converter::run()
{
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
QString music_path = QDesktopServices::storageLocation(QDesktopServices::MusicLocation);
QString path = settings.value("Converter/out_dir", music_path).toString();
QString pattern = settings.value("Converter/file_name","%p - %t").toString();
MetaDataFormatter formatter(pattern);
MetaDataFormatter desc_formatter("%p%if(%p&%t, - ,)%t [%l]");
while(!m_decoders.isEmpty())
{
Decoder *decoder = m_decoders.dequeue();
AudioParameters ap = decoder->audioParameters();
QString url = m_inputs[decoder]->url();
QList <FileInfo *> list = MetaDataManager::instance()->createPlayList(url);
if(list.isEmpty())
{
//ignore
}
QString desc = desc_formatter.parse(list[0]->metaData(), list[0]->length());
emit desriptionChanged(desc);
QString name = formatter.parse(list[0]->metaData(), list[0]->length());
QString full_path = path + "/" + name + ".ogg";
QString command = "oggenc -q 1 -o %o -";
command.replace("%o", "\"" + full_path + "\"");
qDeleteAll(list);
list.clear();
char wave_header[] = { 0x52, 0x49, 0x46, 0x46, //"RIFF"
0x00, 0x00, 0x00, 0x00, //(file size) - 8
0x57, 0x41, 0x56, 0x45, //WAVE
0x66, 0x6d, 0x74, 0x20, //"fmt "
0x10, 0x00, 0x00, 0x00, //16 + extra format bytes
0x01, 0x00, 0x02, 0x00, //PCM/uncompressed, channels
0x00, 0x00, 0x00, 0x00, //sample rate
0x00, 0x00, 0x00, 0x00, //average bytes per second
0x04, 0x00, 0x10, 0x00, //block align, significant bits per sample
0x64, 0x61, 0x74, 0x61, //"data"
0x00, 0x00, 0x00, 0x00 }; //chunk size*/
quint32 sample_rate = qToLittleEndian(ap.sampleRate());
quint16 channels = qToLittleEndian((quint16)ap.channels());
quint16 block_align = qToLittleEndian((quint16)ap.sampleSize() * ap.channels());
quint16 bps = qToLittleEndian((quint16)ap.sampleSize() * 8);
quint32 size = decoder->totalTime() * ap.sampleRate() * ap.channels() * ap.sampleSize() / 1000;
size = qToLittleEndian(size);
memcpy(&wave_header[22], &channels, 2);
memcpy(&wave_header[24], &sample_rate, 4);
memcpy(&wave_header[32], &block_align, 2);
memcpy(&wave_header[34], &bps, 2);
memcpy(&wave_header[40], &size, 4);
//FILE *enc_pipe = fopen("/mnt/win_e/out.wav", "w");
FILE *enc_pipe = popen(qPrintable(command), "w");
if(!enc_pipe)
{
qWarning("Converter: unable to open pipe");
m_inputs.take(decoder)->deleteLater();
delete decoder;
continue;
}
size_t to_write = sizeof(wave_header);
if(to_write != fwrite(&wave_header, 1, to_write, enc_pipe))
{
m_inputs.take(decoder)->deleteLater();
delete decoder;
pclose(enc_pipe);
continue;
}
convert(decoder, enc_pipe);
pclose(enc_pipe);
//fclose(enc_pipe);
m_inputs.take(decoder)->deleteLater();
delete decoder;
}
}
bool Converter::convert(Decoder *decoder, FILE *file)
{
const int buf_size = 8192;
unsigned char output_buf[buf_size];
qint64 output_at = 0;
qint64 total = 0;
quint64 len = 0;
AudioParameters ap = decoder->audioParameters();
qint64 size = decoder->totalTime() * ap.sampleRate() * ap.channels() * ap.sampleSize() / 1000;
int percent = 0;
int prev_percent = 0;
forever
{
// decode
len = decoder->read((char *)(output_buf + output_at), buf_size - output_at);
if (len > 0)
{
output_at += len;
total += len;
while(output_at > 0)
{
len = fwrite(output_buf, 1, output_at, file);
if(len == 0)
{
qWarning("Converter: error");
return false;
}
output_at -= len;
memmove(output_buf, output_buf + len, output_at);
}
percent = 100 * total / size;
if(percent != prev_percent)
{
prev_percent = percent;
emit progress(percent);
}
}
else if (len <= 0)
{
qDebug("Converter: total written: %lld bytes", total);
qDebug("finished!");
return true;
}
}
return false;
}
