Initial resample.c implementation

[disorder] / lib / resample.h

diff --git a/lib/resample.h b/lib/resample.h
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+++ b/lib/resample.h
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+/*
+ * This file is part of DisOrder.
+ * Copyright (C) 2009 Richard Kettlewell
+ *
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file lib/resample.h
+ * @brief Audio resampling
+ */
+
+#ifndef RESAMPLE_H
+#define RESAMPLE_H
+
+#if HAVE_SAMPLERATE_H
+#include <samplerate.h>
+#endif
+
+#define ENDIAN_BIG 1
+#define ENDIAN_LITTLE 2
+
+struct resampler {
+  int input_bits, input_channels, input_rate, input_signed, input_endian;
+  int output_bits, output_channels, output_rate, output_signed, output_endian;
+  int input_bytes_per_sample;
+  int input_bytes_per_frame;
+#if HAVE_SAMPLERATE_H
+  SRC_STATE *state;
+#endif
+};
+
+void resample_init(struct resampler *rs, 
+                   int input_bits, int input_channels, 
+                   int input_rate, int input_signed,
+                   int input_endian,
+                   int output_bits, int output_channels, 
+                   int output_rate, int output_signed,
+                   int output_endian);
+size_t resample_convert(struct resampler *rs,
+                        const uint8_t *bytes,
+                        size_t nbytes,
+                        int eof,
+                        void (*converted)(uint8_t *bytes,
+                                          size_t nbytes));
+void resample_close(struct resampler *rs);
+
+#endif /* RESAMPLE_H */
+
+/*
+Local Variables:
+c-basic-offset:2
+comment-column:40
+fill-column:79
+indent-tabs-mode:nil
+End:
+*/