75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/* -*- c++ -*- */
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/*
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* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
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*
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* Copyright (C) 2017, Libre Space Foundation <http://librespacefoundation.org/>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_SATNOGS_NOAA_APT_SINK_H
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#define INCLUDED_SATNOGS_NOAA_APT_SINK_H
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#include <satnogs/api.h>
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#include <gnuradio/sync_block.h>
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namespace gr {
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namespace satnogs {
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/*!
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* Sink block for NOAA satellites
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* \ingroup satnogs
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*
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*/
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class SATNOGS_API noaa_apt_sink : virtual public gr::sync_block {
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public:
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typedef boost::shared_ptr<noaa_apt_sink> sptr;
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/*!
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* Accepts a stream of floats in the range [0,1] which
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* correspond to one sample per symbol (pixel) and
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* outputs a grayscale PNG image. The user can
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* choose between deriving a single PNG file for each
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* width x length pixels or two PNG files corresponding to
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* each one of the two different spectrum images contained
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* in a NOAA APT transmission. The notation 'left' and 'right'
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* is with respect to the original image sent by the satellite.
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* Further, this block performs normalization on the input
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* float values based on the max and min values observed in the stream.
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* Adding to that, the user has the option to synchronize to the first of the
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* two training sequences used by the NOAA APT protocol so that
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* the two images are displayed one next to the other. The user
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* can also select to rotate the image 180 degrees in case the captured one
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* is upside down.
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*
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*
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* @param filename_png the base filename of the output PNG file(s)
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* @param width the width of the image in the APT transmission
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* @param height the height of the image in the APT transmission
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* @param sync user option for synchronizing to the first of the
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* two training sequences
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* @param flip user option to rotate the image(s) 180 degrees
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*
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*/
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static sptr
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make(const char *filename_png, size_t width, size_t height,
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bool sync, bool flip);
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};
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} // namespace satnogs
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} // namespace gr
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#endif /* INCLUDED_SATNOGS_NOAA_APT_SINK_H */
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