hide QXmppCodec

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diff --git a/src/base/QXmppCodec_p.h b/src/base/QXmppCodec_p.h
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+/*
+ * Copyright (C) 2008-2012 The QXmpp developers
+ *
+ * Author:
+ *  Jeremy Lainé
+ *
+ * Source:
+ *  http://code.google.com/p/qxmpp
+ *
+ * This file is a part of QXmpp library.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ */
+
+#ifndef QXMPPCODEC_H
+#define QXMPPCODEC_H
+
+#include <QMap>
+#include <QtGlobal>
+
+#include "QXmppGlobal.h"
+
+class QXmppRtpPacket;
+class QXmppVideoFormat;
+class QXmppVideoFrame;
+
+/// \brief The QXmppCodec class is the base class for audio codecs capable of
+/// encoding and decoding audio samples.
+///
+/// Samples must be 16-bit little endian.
+
+class QXMPP_AUTOTEST_EXPORT QXmppCodec
+{
+public:
+    virtual ~QXmppCodec();
+
+    /// Reads samples from the input stream, encodes them and writes the
+    /// encoded data to the output stream.
+    virtual qint64 encode(QDataStream &input, QDataStream &output) = 0;
+
+    /// Reads encoded data from the input stream, decodes it and writes the
+    /// decoded samples to the output stream.
+    virtual qint64 decode(QDataStream &input, QDataStream &output) = 0;
+};
+
+/// \internal
+///
+/// The QXmppG711aCodec class represent a G.711 a-law PCM codec.
+
+class QXmppG711aCodec : public QXmppCodec
+{
+public:
+    QXmppG711aCodec(int clockrate);
+
+    qint64 encode(QDataStream &input, QDataStream &output);
+    qint64 decode(QDataStream &input, QDataStream &output);
+
+private:
+    int m_frequency;
+};
+
+/// \internal
+///
+/// The QXmppG711uCodec class represent a G.711 u-law PCM codec.
+
+class QXmppG711uCodec : public QXmppCodec
+{
+public:
+    QXmppG711uCodec(int clockrate);
+
+    qint64 encode(QDataStream &input, QDataStream &output);
+    qint64 decode(QDataStream &input, QDataStream &output);
+
+private:
+    int m_frequency;
+};
+
+#ifdef QXMPP_USE_SPEEX
+typedef struct SpeexBits SpeexBits;
+
+/// \internal
+///
+/// The QXmppSpeexCodec class represent a SPEEX codec.
+
+class QXMPP_AUTOTEST_EXPORT QXmppSpeexCodec : public QXmppCodec
+{
+public:
+    QXmppSpeexCodec(int clockrate);
+    ~QXmppSpeexCodec();
+
+    qint64 encode(QDataStream &input, QDataStream &output);
+    qint64 decode(QDataStream &input, QDataStream &output);
+
+private:
+    SpeexBits *encoder_bits;
+    void *encoder_state;
+    SpeexBits *decoder_bits;
+    void *decoder_state;
+    int frame_samples;
+};
+#endif
+
+/// \brief The QXmppVideoDecoder class is the base class for video decoders.
+///
+
+class QXMPP_AUTOTEST_EXPORT QXmppVideoDecoder
+{
+public:
+    virtual ~QXmppVideoDecoder();
+
+    /// Returns the format of the video stream.
+    virtual QXmppVideoFormat format() const = 0;
+
+    /// Handles an RTP \a packet and returns a list of decoded video frames.
+    virtual QList<QXmppVideoFrame> handlePacket(const QXmppRtpPacket &packet) = 0;
+
+    /// Sets the video stream's \a parameters.
+    virtual bool setParameters(const QMap<QString, QString> &parameters) = 0;
+};
+
+/// \brief The QXmppVideoEncoder class is the base class for video encoders.
+///
+
+class QXMPP_AUTOTEST_EXPORT QXmppVideoEncoder
+{
+public:
+    virtual ~QXmppVideoEncoder();
+
+    /// Sets the \a format of the video stream.
+    virtual bool setFormat(const QXmppVideoFormat &format) = 0;
+
+    /// Handles a video \a frame and returns a list of RTP packet payloads.
+    virtual QList<QByteArray> handleFrame(const QXmppVideoFrame &frame) = 0;
+
+    /// Returns the video stream's parameters.
+    virtual QMap<QString, QString> parameters() const = 0;
+};
+
+#ifdef QXMPP_USE_THEORA
+class QXmppTheoraDecoderPrivate;
+class QXmppTheoraEncoderPrivate;
+
+class QXMPP_AUTOTEST_EXPORT QXmppTheoraDecoder : public QXmppVideoDecoder
+{
+public:
+    QXmppTheoraDecoder();
+    ~QXmppTheoraDecoder();
+
+    QXmppVideoFormat format() const;
+    QList<QXmppVideoFrame> handlePacket(const QXmppRtpPacket &packet);
+    bool setParameters(const QMap<QString, QString> &parameters);
+
+private:
+    QXmppTheoraDecoderPrivate *d;
+};
+
+class QXMPP_AUTOTEST_EXPORT QXmppTheoraEncoder : public QXmppVideoEncoder
+{
+public:
+    QXmppTheoraEncoder();
+    ~QXmppTheoraEncoder();
+
+    bool setFormat(const QXmppVideoFormat &format);
+    QList<QByteArray> handleFrame(const QXmppVideoFrame &frame);
+    QMap<QString, QString> parameters() const;
+
+private:
+    QXmppTheoraEncoderPrivate *d;
+};
+#endif
+
+#ifdef QXMPP_USE_VPX
+class QXmppVpxDecoderPrivate;
+class QXmppVpxEncoderPrivate;
+
+class QXMPP_AUTOTEST_EXPORT QXmppVpxDecoder : public QXmppVideoDecoder
+{
+public:
+    QXmppVpxDecoder();
+    ~QXmppVpxDecoder();
+
+    QXmppVideoFormat format() const;
+    QList<QXmppVideoFrame> handlePacket(const QXmppRtpPacket &packet);
+    bool setParameters(const QMap<QString, QString> &parameters);
+
+private:
+    QXmppVpxDecoderPrivate *d;
+};
+
+class QXMPP_AUTOTEST_EXPORT QXmppVpxEncoder : public QXmppVideoEncoder
+{
+public:
+    QXmppVpxEncoder();
+    ~QXmppVpxEncoder();
+
+    bool setFormat(const QXmppVideoFormat &format);
+    QList<QByteArray> handleFrame(const QXmppVideoFrame &frame);
+    QMap<QString, QString> parameters() const;
+
+private:
+    QXmppVpxEncoderPrivate *d;
+};
+#endif
+
+#endif