added mms plugin (experimental) (Closes issue 273)

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@1658 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 168 insertions, 0 deletions

diff --git a/src/plugins/Transports/mms/downloader.cpp b/src/plugins/Transports/mms/downloader.cpp
new file mode 100644
index 000000000..242a4f48c
--- /dev/null
+++ b/src/plugins/Transports/mms/downloader.cpp
@@ -0,0 +1,168 @@
+/***************************************************************************
+ *   Copyright (C) 2010 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 <QApplication>
+#include <QStringList>
+#include <QDir>
+#include <QMap>
+#include <QSettings>
+#include <QTextCodec>
+#include <stdint.h>
+#include <stdlib.h>
+#include <qmmp/qmmpsettings.h>
+#include <qmmp/qmmp.h>
+#include <qmmp/statehandler.h>
+#include "downloader.h"
+
+Downloader::Downloader(QObject *parent, const QString &url)
+        : QThread(parent)
+{
+    m_url = url;
+    m_handle = 0;
+    m_aborted = false;
+    QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
+    m_prebuf_size = settings.value("MMS/buffer_size",128).toInt() * 1024;
+    m_buffer_size = m_prebuf_size;
+    m_buffer = (char *)malloc(m_buffer_size);
+    m_ready = false;
+    m_buffer_at = 0;
+}
+
+
+Downloader::~Downloader()
+{
+    abort();
+    free(m_buffer);
+    m_buffer = 0;
+    m_buffer_at = 0;
+    m_buffer_size = 0;
+}
+
+qint64 Downloader::read(char* data, qint64 maxlen)
+{
+    m_mutex.lock();
+    qint64 len = qMin<qint64>(m_buffer_at, maxlen);
+    memmove(data, m_buffer, len);
+    m_buffer_at -= len;
+    memmove(m_buffer, m_buffer + len, m_buffer_at);
+    m_mutex.unlock();
+    return len;
+}
+
+QMutex *Downloader::mutex()
+{
+    return &m_mutex;
+}
+
+QString Downloader::contentType()
+{
+    return "audio/x-ms-wma";
+}
+
+void Downloader::abort()
+{
+    m_mutex.lock();
+    if (m_aborted)
+    {
+        m_mutex.unlock();
+        return;
+    }
+    m_aborted = true;
+    m_ready = false;
+    m_mutex.unlock();
+    wait();
+    if (m_handle)
+        mms_close(m_handle);
+    m_handle = 0;
+}
+
+qint64 Downloader::bytesAvailable()
+{
+    m_mutex.lock();
+    qint64 b = m_buffer_at;
+    m_mutex.unlock();
+    return b;
+}
+
+void Downloader::run()
+{
+    m_handle = mms_connect (0, 0, m_url.toLocal8Bit().constData(), 128 * 1024);
+    if(!m_handle)
+    {
+        qWarning("Downloader: connection failed");
+        return;
+    }
+    m_mutex.lock();
+    if(m_aborted)
+    {
+        m_mutex.unlock();
+        qDebug("Downloader: aborted");
+        return;
+    }
+    m_mutex.unlock();
+    qint64 len = 0;
+    forever
+    {
+        m_mutex.lock();
+        int to_read = 1024;
+        if(m_buffer_at + to_read > m_buffer_size)
+        {
+            m_buffer_size = m_buffer_at + to_read;
+            m_buffer = (char *)realloc(m_buffer, m_buffer_size);
+        }
+        len = mms_read (0, m_handle, m_buffer + m_buffer_at, to_read);
+        if(len < 0)
+        {
+            qWarning("Downloader: error: %s", strerror(len));
+            m_mutex.unlock();
+            break;
+        }
+        m_buffer_at += len;
+        if(!m_ready)
+            checkBuffer();
+        m_mutex.unlock();
+        if(m_aborted)
+            break;
+        usleep(5000);
+    }
+}
+
+void Downloader::checkBuffer()
+{
+    if (m_buffer_at > m_prebuf_size && !m_ready)
+    {
+        m_ready  = true;
+        qDebug("Downloader: ready");
+        QMap<Qmmp::MetaData, QString> metaData;
+        metaData.insert(Qmmp::URL, m_url);
+        StateHandler::instance()->dispatch(metaData);
+        emit readyRead();
+    }
+    else if (!m_ready)
+    {
+        StateHandler::instance()->dispatchBuffer(100 * m_buffer_at / m_buffer_size);
+        qApp->processEvents();
+    }
+}
+
+bool Downloader::isReady()
+{
+    return m_ready;
+}