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-rw-r--r--polyp/sample.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/polyp/sample.h b/polyp/sample.h
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+++ b/polyp/sample.h
@@ -0,0 +1,64 @@
+#ifndef foosamplehfoo
+#define foosamplehfoo
+
+/* $Id$ */
+
+/***
+ This file is part of polypaudio.
+
+ polypaudio 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 2 of the License,
+ or (at your option) any later version.
+
+ polypaudio 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 polypaudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+enum pa_sample_format {
+ PA_SAMPLE_U8,
+ PA_SAMPLE_ALAW,
+ PA_SAMPLE_ULAW,
+ PA_SAMPLE_S16LE,
+ PA_SAMPLE_S16BE,
+ PA_SAMPLE_FLOAT32LE,
+ PA_SAMPLE_FLOAT32BE,
+ PA_SAMPLE_MAX
+};
+
+#ifdef WORDS_BIGENDIAN
+#define PA_SAMPLE_S16NE PA_SAMPLE_S16BE
+#define PA_SAMPLE_FLOAT32NE PA_SAMPLE_FLOAT32BE
+#else
+#define PA_SAMPLE_S16NE PA_SAMPLE_S16LE
+#define PA_SAMPLE_FLOAT32NE PA_SAMPLE_FLOAT32LE
+#endif
+#define PA_SAMPLE_FLOAT32 PA_SAMPLE_FLOAT32NE
+
+struct pa_sample_spec {
+ enum pa_sample_format format;
+ uint32_t rate;
+ uint8_t channels;
+};
+
+size_t pa_bytes_per_second(const struct pa_sample_spec *spec);
+size_t pa_sample_size(const struct pa_sample_spec *spec);
+uint32_t pa_samples_usec(size_t length, const struct pa_sample_spec *spec);
+int pa_sample_spec_valid(const struct pa_sample_spec *spec);
+int pa_sample_spec_equal(const struct pa_sample_spec*a, const struct pa_sample_spec*b);
+
+
+#define PA_SAMPLE_SNPRINT_MAX_LENGTH 32
+void pa_sample_snprint(char *s, size_t l, const struct pa_sample_spec *spec);
+
+#endif