added engine api, enabled mplayer plugin

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@1296 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 106 insertions, 0 deletions

diff --git a/src/plugins/Engines/mplayer/mplayermetadatamodel.cpp b/src/plugins/Engines/mplayer/mplayermetadatamodel.cpp
new file mode 100644
index 000000000..7aa8b3e3a
--- /dev/null
+++ b/src/plugins/Engines/mplayer/mplayermetadatamodel.cpp
@@ -0,0 +1,106 @@
+/***************************************************************************
+ *   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;
+}