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* Copyright 2006 Free Software Foundation, Inc.
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* This file is part of GNU Radio
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* GNU Radio 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, or (at your option)
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* GNU Radio 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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* You should have received a copy of the GNU General Public License
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* along with GNU Radio; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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#ifndef INCLUDED_GR_STREAM_MUX_H
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#define INCLUDED_GR_STREAM_MUX_H
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* \brief Creates a stream muxing block to multiplex many streams into
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* one with a specified format.
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* \ingroup converter_blk
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* \param itemsize the item size of the stream
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* \param length a vector (list/tuple) specifying the number of
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* items from each stream the mux together.
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* Warning: this requires that at least as many items
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* per stream are available or the system will wait
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* indefinitely for the items.
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typedef boost::shared_ptr<gr_stream_mux> gr_stream_mux_sptr;
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gr_make_stream_mux (size_t itemsize, const std::vector<int> &lengths);
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* \brief Stream muxing block to multiplex many streams into
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* one with a specified format.
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* Muxes N streams together producing an output stream that
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* contains N0 items from the first stream, N1 items from the second,
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* [N0, N1, N2, ..., Nm, N0, N1, ...]
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class gr_stream_mux : public gr_block
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friend gr_stream_mux_sptr
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gr_make_stream_mux (size_t itemsize, const std::vector<int> &lengths);
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gr_stream_mux (size_t itemsize, const std::vector<int> &lengths);
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unsigned int d_stream; // index of currently selected stream
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int d_residual; // number if items left to put into current stream
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gr_vector_int d_lengths; // number if items to pack per stream
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void increment_stream();
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void forecast (int noutput_items, gr_vector_int &ninput_items_required);
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int general_work(int noutput_items,
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gr_vector_int &ninput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items);