diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-03-09 09:35:07 -0500 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-03-09 09:35:07 -0500 |
| commit | 21c95a82a495f0cf9dfe511f9ef370bae9ac0eeb (patch) | |
| tree | ae8b5808eb5b03495c3758baf5bb4ab679c68a7a /gr-blocks/include/blocks/wavfile_source.h | |
| parent | 4389b769891283face9aa397bd4d736f478e97e4 (diff) | |
blocks: moved tagged_file_sink and wavfile source/sink/base to gr-blocks.
Diffstat (limited to 'gr-blocks/include/blocks/wavfile_source.h')
| -rw-r--r-- | gr-blocks/include/blocks/wavfile_source.h | 70 |
1 files changed, 70 insertions, 0 deletions
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 */ |