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/lib/wavfile_sink_impl.h | 95 +++++++++++++++++++++++++++++++++++++++
1 file changed, 95 insertions(+)
create mode 100644 gr-blocks/lib/wavfile_sink_impl.h
(limited to 'gr-blocks/lib/wavfile_sink_impl.h')
diff --git a/gr-blocks/lib/wavfile_sink_impl.h b/gr-blocks/lib/wavfile_sink_impl.h
new file mode 100644
index 0000000000..8a364f2b90
--- /dev/null
+++ b/gr-blocks/lib/wavfile_sink_impl.h
@@ -0,0 +1,95 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2008,2009,2013 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_SINK_IMPL_H
+#define INCLUDED_GR_WAVFILE_SINK_IMPL_H
+
+#include <blocks/wavfile_sink.h>
+#include <gr_file_sink_base.h>
+
+namespace gr {
+ namespace blocks {
+
+ class wavfile_sink_impl : public wavfile_sink
+ {
+ private:
+ unsigned d_sample_rate;
+ int d_nchans;
+ unsigned d_sample_count;
+ int d_bytes_per_sample;
+ int d_bytes_per_sample_new;
+ int d_max_sample_val;
+ int d_min_sample_val;
+ int d_normalize_shift;
+ int d_normalize_fac;
+
+ FILE *d_fp;
+ FILE *d_new_fp;
+ bool d_updated;
+ boost::mutex d_mutex;
+
+ /*!
+ * \brief Convert a sample value within [-1;+1] to a corresponding
+ * short integer value
+ */
+ short convert_to_short(float sample);
+
+ /*!
+ * \brief If any file changes have occurred, update now. This is called
+ * internally by work() and thus doesn't usually need to be called by
+ * hand.
+ */
+ void do_update();
+
+ /*!
+ * \brief Writes information to the WAV header which is not available
+ * a-priori (chunk size etc.) and closes the file. Not thread-safe and
+ * assumes d_fp is a valid file pointer, should thus only be called by
+ * other methods.
+ */
+ void close_wav();
+
+ public:
+ wavfile_sink_impl(const char *filename,
+ int n_channels,
+ unsigned int sample_rate,
+ int bits_per_sample);
+ ~wavfile_sink_impl();
+
+ bool open(const char* filename);
+ void close();
+
+ void set_sample_rate(unsigned int sample_rate);
+ void set_bits_per_sample(int bits_per_sample);
+
+ int bits_per_sample();
+ unsigned int sample_rate();
+
+ int work(int noutput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items);
+ };
+
+ } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_GR_WAVFILE_SINK_IMPL_H */
--
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