big s/polyp/pulse/g

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/pulsecore/resampler.h

@@ -0,0 +1,73 @@
+#ifndef fooresamplerhfoo
+#define fooresamplerhfoo
+
+/* $Id$ */
+
+/***
+  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 <samplerate.h>
+
+#include <pulse/sample.h>
+#include <pulse/channelmap.h>
+#include <pulsecore/memblock.h>
+#include <pulsecore/memchunk.h>
+
+typedef struct pa_resampler pa_resampler;
+
+typedef enum pa_resample_method {
+    PA_RESAMPLER_INVALID                 = -1,
+    PA_RESAMPLER_SRC_SINC_BEST_QUALITY   = SRC_SINC_BEST_QUALITY,
+    PA_RESAMPLER_SRC_SINC_MEDIUM_QUALITY = SRC_SINC_MEDIUM_QUALITY,
+    PA_RESAMPLER_SRC_SINC_FASTEST        = SRC_SINC_FASTEST,
+    PA_RESAMPLER_SRC_ZERO_ORDER_HOLD     = SRC_ZERO_ORDER_HOLD,
+    PA_RESAMPLER_SRC_LINEAR              = SRC_LINEAR,
+    PA_RESAMPLER_TRIVIAL,
+    PA_RESAMPLER_MAX
+} pa_resample_method_t;
+
+pa_resampler* pa_resampler_new(
+    const pa_sample_spec *a,
+    const pa_channel_map *am,
+    const pa_sample_spec *b,
+    const pa_channel_map *bm,
+    pa_memblock_stat *s,
+    pa_resample_method_t resample_method);
+
+void pa_resampler_free(pa_resampler *r);
+
+/* Returns the size of an input memory block which is required to return the specified amount of output data */
+size_t pa_resampler_request(pa_resampler *r, size_t out_length);
+
+/* Pass the specified memory chunk to the resampler and return the newly resampled data */
+void pa_resampler_run(pa_resampler *r, const pa_memchunk *in, pa_memchunk *out);
+
+/* Change the input rate of the resampler object */
+void pa_resampler_set_input_rate(pa_resampler *r, uint32_t rate);
+
+/* Return the resampling method of the resampler object */
+pa_resample_method_t pa_resampler_get_method(pa_resampler *r);
+
+/* Try to parse the resampler method */
+pa_resample_method_t pa_parse_resample_method(const char *string);
+
+/* return a human readable string for the specified resampling method. Inverse of pa_parse_resample_method() */
+const char *pa_resample_method_to_string(pa_resample_method_t m);
+
+#endif