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-rw-r--r--src/pulsecore/sample-util.h55
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diff --git a/src/pulsecore/sample-util.h b/src/pulsecore/sample-util.h
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+++ b/src/pulsecore/sample-util.h
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+#ifndef foosampleutilhfoo
+#define foosampleutilhfoo
+
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ PulseAudio is free software; you can redistribute it and/or modify
+ it under the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation; either version 2 of the License,
+ or (at your option) any later version.
+
+ PulseAudio 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 Lesser General Public License
+ along with PulseAudio; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#include <pulse/sample.h>
+#include <pulse/volume.h>
+#include <pulsecore/memblock.h>
+#include <pulsecore/memchunk.h>
+
+pa_memblock *pa_silence_memblock(pa_memblock* b, const pa_sample_spec *spec);
+pa_memblock *pa_silence_memblock_new(const pa_sample_spec *spec, size_t length, pa_memblock_stat*s);
+void pa_silence_memchunk(pa_memchunk *c, const pa_sample_spec *spec);
+void pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec);
+
+typedef struct pa_mix_info {
+ pa_memchunk chunk;
+ pa_cvolume volume;
+ void *userdata;
+} pa_mix_info;
+
+size_t pa_mix(
+ const pa_mix_info channels[],
+ unsigned nchannels,
+ void *data,
+ size_t length,
+ const pa_sample_spec *spec,
+ const pa_cvolume *volume,
+ int mute);
+
+void pa_volume_memchunk(
+ pa_memchunk*c,
+ const pa_sample_spec *spec,
+ const pa_cvolume *volume);
+
+#endif