#ifndef fooresamplerhfoo
#define fooresamplerhfoo
-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ Copyright 2004-2006 Lennart Poettering
+
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>
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_SRC_SINC_BEST_QUALITY = 0, /* = SRC_SINC_BEST_QUALITY */
+ PA_RESAMPLER_SRC_SINC_MEDIUM_QUALITY = 1, /* = SRC_SINC_MEDIUM_QUALITY */
+ PA_RESAMPLER_SRC_SINC_FASTEST = 2, /* = SRC_SINC_FASTEST */
+ PA_RESAMPLER_SRC_ZERO_ORDER_HOLD = 3, /* = SRC_ZERO_ORDER_HOLD */
+ PA_RESAMPLER_SRC_LINEAR = 4, /* = SRC_LINEAR */
PA_RESAMPLER_TRIVIAL,
+ PA_RESAMPLER_SPEEX_FLOAT_BASE,
+ PA_RESAMPLER_SPEEX_FLOAT_MAX = PA_RESAMPLER_SPEEX_FLOAT_BASE + 10,
+ PA_RESAMPLER_SPEEX_FIXED_BASE,
+ PA_RESAMPLER_SPEEX_FIXED_MAX = PA_RESAMPLER_SPEEX_FIXED_BASE + 10,
+ PA_RESAMPLER_FFMPEG,
+ PA_RESAMPLER_AUTO, /* automatic select based on sample format */
+ PA_RESAMPLER_COPY,
+ PA_RESAMPLER_PEAKS,
PA_RESAMPLER_MAX
} pa_resample_method_t;
+typedef enum pa_resample_flags {
+ PA_RESAMPLER_VARIABLE_RATE = 0x0001U,
+ PA_RESAMPLER_NO_REMAP = 0x0002U, /* implies NO_REMIX */
+ PA_RESAMPLER_NO_REMIX = 0x0004U,
+ PA_RESAMPLER_NO_LFE = 0x0008U
+} pa_resample_flags_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);
+ pa_mempool *pool,
+ const pa_sample_spec *a,
+ const pa_channel_map *am,
+ const pa_sample_spec *b,
+ const pa_channel_map *bm,
+ pa_resample_method_t resample_method,
+ pa_resample_flags_t flags);
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);
+/* Inverse of pa_resampler_request() */
+size_t pa_resampler_result(pa_resampler *r, size_t in_length);
+
+/* Returns the maximum size of input blocks we can process without needing bounce buffers larger than the mempool tile size. */
+size_t pa_resampler_max_block_size(pa_resampler *r);
+
/* 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);
+/* Change the output rate of the resampler object */
+void pa_resampler_set_output_rate(pa_resampler *r, uint32_t rate);
+
+/* Reinitialize state of the resampler, possibly due to seeking or other discontinuities */
+void pa_resampler_reset(pa_resampler *r);
+
/* Return the resampling method of the resampler object */
pa_resample_method_t pa_resampler_get_method(pa_resampler *r);
/* 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);
+/* Return 1 when the specified resampling method is supported */
+int pa_resample_method_supported(pa_resample_method_t m);
+
+
#endif