From 21c95a82a495f0cf9dfe511f9ef370bae9ac0eeb Mon Sep 17 00:00:00 2001 From: Tom Rondeau <trondeau@vt.edu> Date: Sat, 9 Mar 2013 09:35:07 -0500 Subject: blocks: moved tagged_file_sink and wavfile source/sink/base to gr-blocks. --- gr-blocks/include/blocks/wavfile_source.h | 70 +++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 gr-blocks/include/blocks/wavfile_source.h (limited to 'gr-blocks/include/blocks/wavfile_source.h') diff --git a/gr-blocks/include/blocks/wavfile_source.h b/gr-blocks/include/blocks/wavfile_source.h new file mode 100644 index 0000000000..46cb82b698 --- /dev/null +++ b/gr-blocks/include/blocks/wavfile_source.h @@ -0,0 +1,70 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2008,2013 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +#ifndef INCLUDED_GR_WAVFILE_SOURCE_H +#define INCLUDED_GR_WAVFILE_SOURCE_H + +#include <blocks/api.h> +#include <gr_sync_block.h> + +namespace gr { + namespace blocks { + + /*! + * \brief Read stream from a Microsoft PCM (.wav) file, output floats + * + * Unless otherwise called, values are within [-1;1]. + * Check gr_make_wavfile_source() for extra info. + * + * \ingroup source_blk + */ + class BLOCKS_API wavfile_source : virtual public gr_sync_block + { + public: + // gr::blocks::wavfile_source::sptr + typedef boost::shared_ptr<wavfile_source> sptr; + + static sptr make(const char *filename, bool repeat = false); + + /*! + * \brief Read the sample rate as specified in the wav file header + */ + virtual unsigned int sample_rate() const = 0; + + /*! + * \brief Return the number of bits per sample as specified in + * the wav file header. Only 8 or 16 bit are supported here. + */ + virtual int bits_per_sample() const = 0; + + /*! + * \brief Return the number of channels in the wav file as + * specified in the wav file header. This is also the max number + * of outputs you can have. + */ + virtual int channels() const = 0; + }; + + } /* namespace blocks */ +} /* namespace gr */ + +#endif /* INCLUDED_GR_WAVFILE_SOURCE_H */ -- cgit v1.2.3