/usr/include/liveMedia/JPEGVideoSource.hh is in liblivemedia-dev 2016.02.09-1.
This file is owned by root:root, with mode 0o644.
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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. (See <http://www.gnu.org/copyleft/lesser.html>.)
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.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
**********/
// "liveMedia"
// Copyright (c) 1996-2016 Live Networks, Inc. All rights reserved.
// JPEG video sources
// C++ header
#ifndef _JPEG_VIDEO_SOURCE_HH
#define _JPEG_VIDEO_SOURCE_HH
#ifndef _FRAMED_SOURCE_HH
#include "FramedSource.hh"
#endif
class JPEGVideoSource: public FramedSource {
public:
virtual u_int8_t type() = 0;
virtual u_int8_t qFactor() = 0;
virtual u_int8_t width() = 0; // # pixels/8 (or 0 for 2048 pixels)
virtual u_int8_t height() = 0; // # pixels/8 (or 0 for 2048 pixels)
virtual u_int8_t const* quantizationTables(u_int8_t& precision,
u_int16_t& length);
// If "qFactor()" returns a value >= 128, then this function is called
// to tell us the quantization tables that are being used.
// (The default implementation of this function just returns NULL.)
// "precision" and "length" are as defined in RFC 2435, section 3.1.8.
virtual u_int16_t restartInterval();
// If restart intervals are being used (i.e., 64 <= type() <= 127), then this function must be
// redefined - by a subclass - to return a non-zero value.
protected:
JPEGVideoSource(UsageEnvironment& env); // abstract base class
virtual ~JPEGVideoSource();
private:
// redefined virtual functions:
virtual Boolean isJPEGVideoSource() const;
};
#endif
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