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/*
Copyright (C) 2010 Collabora Multimedia.
@author Mauricio Piacentini <mauricio.piacentini@collabora.co.uk>
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 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QGST_BUFFER_H
#define QGST_BUFFER_H
#include "miniobject.h"
#include "clocktime.h"
#include "memory.h"
namespace QGst {
/*! \headerfile buffer.h <QGst/Buffer>
* \brief Wrapper class for GstBuffer
*
* Buffers are the basic unit of data transfer in GStreamer. The data() pointer holds the
* contents of the buffer, and the length is obtained from size(). Buffers also contain a
* CapsPtr in caps() that indicates the format of the buffer data.
*
*/
class QTGSTREAMER_EXPORT Buffer : public MiniObject
{
QGST_WRAPPER(Buffer)
public:
static BufferPtr create(uint size);
quint32 size() const;
ClockTime decodingTimeStamp() const;
ClockTime presentationTimeStamp() const;
ClockTime duration() const;
quint64 offset() const;
quint64 offsetEnd() const;
BufferFlags flags() const;
void setFlags(const BufferFlags flags);
void setSize(uint size);
uint extract(uint offset, void *dest, uint size);
uint memoryCount() const;
MemoryPtr getMemory(uint index) const;
BufferPtr copy() const;
inline BufferPtr makeWritable() const;
bool map(MapInfo &info, MapFlags flags);
void unmap(MapInfo &info);
};
BufferPtr Buffer::makeWritable() const
{
return MiniObject::makeWritable().staticCast<Buffer>();
}
} //namespace QGst
QGST_REGISTER_TYPE(QGst::Buffer)
#endif
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