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/***************************************************************************
* Copyright (C) 2009 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 <QRegExp>
#include <QFileInfo>
#include <QStringList>
#include <QProcess>
#include "mplayermetadatamodel.h"
MplayerMetaDataModel::MplayerMetaDataModel(const QString &path, QObject *parent) : MetaDataModel(parent)
{
m_path = path;
}
MplayerMetaDataModel::~MplayerMetaDataModel()
{}
QHash<QString, QString> MplayerMetaDataModel::audioProperties()
{
QHash<QString, QString> vp;
QHash<QString, QString> ap;
ap.insert(tr("Size"), QString("%1 ").arg(QFileInfo(m_path).size ()/1024)+tr("KB"));
//regular expressions
QRegExp rx_id_length("^ID_LENGTH=([0-9,.]+)*");
QRegExp rx_id_demuxer("^ID_DEMUXER=(.*)");
QRegExp rx_id_video_bitrate("^ID_VIDEO_BITRATE=([0-9,.]+)*");
QRegExp rx_id_width("^ID_VIDEO_WIDTH=([0-9,.]+)*");
QRegExp rx_id_height("^ID_VIDEO_HEIGHT=([0-9,.]+)*");
QRegExp rx_id_video_format("^ID_VIDEO_FORMAT=(.*)");
QRegExp rx_id_video_fps("^ID_VIDEO_FPS=([0-9,.]+)*");
QRegExp rx_id_video_codec("^ID_VIDEO_CODEC=(.*)");
QRegExp rx_id_video_aspect("^ID_VIDEO_ASPECT=([0-9,.]+)*");
QRegExp rx_id_audio_bitrate("^ID_AUDIO_BITRATE=([0-9,.]+)*");
QRegExp rx_id_audio_rate("^ID_AUDIO_RATE=([0-9,.]+)*");
QRegExp rx_id_audio_nch("^ID_AUDIO_NCH=([0-9,.]+)*");
QRegExp rx_id_audio_codec("^ID_AUDIO_CODEC=(.*)");
//prepare and start mplayer process
QStringList args;
args << "-slave";
args << "-identify";
args << "-frames";
args << "0";
args << "-vo";
args << "null";
args << "-ao";
args << "null";
args << m_path;
QProcess mplayer_process;
mplayer_process.start("mplayer", args);
mplayer_process.waitForFinished();
QString str = QString::fromLocal8Bit(mplayer_process.readAll()).trimmed();
QStringList lines = str.split("\n");
int height = 0, width = 0;
//mplayer std output parsing
foreach(QString line, lines)
{
//general info
if (rx_id_length.indexIn(line) > -1)
ap.insert(tr("Length"),rx_id_length.cap(1)); //TODO use hh:mm:ss format
else if (rx_id_demuxer.indexIn(line) > -1)
ap.insert(tr("Demuxer"), rx_id_demuxer.cap(1));
//video info
else if (rx_id_video_format.indexIn(line) > -1)
ap.insert(tr("Video format"), rx_id_video_format.cap(1));
else if (rx_id_video_fps.indexIn(line) > -1)
ap.insert(tr("FPS"), rx_id_video_fps.cap(1));
else if (rx_id_video_codec.indexIn(line) > -1)
ap.insert(tr("Video codec"), rx_id_video_codec.cap(1));
else if (rx_id_video_aspect.indexIn(line) > -1)
ap.insert(tr("Aspect ratio"),rx_id_video_aspect.cap(1));
else if (rx_id_video_bitrate.indexIn(line) > -1)
ap.insert(tr("Video bitrate"), rx_id_video_bitrate.cap(1));
else if (rx_id_width.indexIn(line) > -1)
width = rx_id_width.cap(1).toInt();
else if (rx_id_height.indexIn(line) > -1)
height = rx_id_height.cap(1).toInt();
//audio info
else if (rx_id_audio_codec.indexIn(line) > -1)
ap.insert(tr("Audio codec"),rx_id_audio_codec.cap(1));
else if (rx_id_audio_rate.indexIn(line) > -1)
ap.insert(tr("Sample rate"), rx_id_audio_rate.cap(1));
else if (rx_id_audio_bitrate.indexIn(line) > -1)
ap.insert(tr("Audio bitrate"), rx_id_audio_bitrate.cap(1));
else if (rx_id_audio_nch.indexIn(line) > -1)
ap.insert(tr("Channels"), rx_id_audio_nch.cap(1));
}
vp.insert(tr("Resolution"), QString("%1x%2").arg(width).arg(height));
return ap;
}
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