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authorJeremy Lainé <jeremy.laine@m4x.org>2012-02-08 12:51:15 +0000
committerJeremy Lainé <jeremy.laine@m4x.org>2012-02-08 12:51:15 +0000
commitdeb9d6cb53057ca8b90d10d6a3bdc5dcfd1b3ee4 (patch)
treed956bad28e28aadc3c83dbf88b3eddb5e1d9a9f4 /src/base/QXmppCodec.h
parente8a1ad0cc608f12874ba4bafbd8282fa537ec9fb (diff)
downloadqxmpp-deb9d6cb53057ca8b90d10d6a3bdc5dcfd1b3ee4.tar.gz
move files common to client/server into "base"
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diff --git a/src/base/QXmppCodec.h b/src/base/QXmppCodec.h
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+/*
+ * Copyright (C) 2008-2011 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 <QtGlobal>
+
+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 QXmppCodec
+{
+public:
+ /// 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 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 QXmppVideoDecoder
+{
+public:
+ virtual QXmppVideoFormat format() const = 0;
+ virtual QList<QXmppVideoFrame> handlePacket(const QXmppRtpPacket &packet) = 0;
+ virtual bool setParameters(const QMap<QString, QString> &parameters) = 0;
+};
+
+class QXmppVideoEncoder
+{
+public:
+ virtual bool setFormat(const QXmppVideoFormat &format) = 0;
+ virtual QList<QByteArray> handleFrame(const QXmppVideoFrame &frame) = 0;
+ virtual QMap<QString, QString> parameters() const = 0;
+};
+
+#ifdef QXMPP_USE_THEORA
+class QXmppTheoraDecoderPrivate;
+class QXmppTheoraEncoderPrivate;
+
+class 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 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 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 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