+++ /dev/null
-/* $Id$ */
-
-/***
- This file is part of polypaudio.
-
- polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser 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 Lesser 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.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdio.h>
-#include <assert.h>
-#include <math.h>
-#include <string.h>
-
-#include "sample.h"
-
-size_t pa_sample_size(const pa_sample_spec *spec) {
- assert(spec);
-
- switch (spec->format) {
- case PA_SAMPLE_U8:
- case PA_SAMPLE_ULAW:
- case PA_SAMPLE_ALAW:
- return 1;
- case PA_SAMPLE_S16LE:
- case PA_SAMPLE_S16BE:
- return 2;
- case PA_SAMPLE_FLOAT32LE:
- case PA_SAMPLE_FLOAT32BE:
- return 4;
- default:
- assert(0);
- }
-}
-
-size_t pa_frame_size(const pa_sample_spec *spec) {
- assert(spec);
-
- return pa_sample_size(spec) * spec->channels;
-}
-
-size_t pa_bytes_per_second(const pa_sample_spec *spec) {
- assert(spec);
- return spec->rate*pa_frame_size(spec);
-}
-
-pa_usec_t pa_bytes_to_usec(uint64_t length, const pa_sample_spec *spec) {
- assert(spec);
-
- return (pa_usec_t) (((double) length/pa_frame_size(spec)*1000000)/spec->rate);
-}
-
-int pa_sample_spec_valid(const pa_sample_spec *spec) {
- assert(spec);
-
- if (spec->rate <= 0 ||
- spec->channels <= 0 ||
- spec->channels > PA_CHANNELS_MAX ||
- spec->format >= PA_SAMPLE_MAX ||
- spec->format < 0)
- return 0;
-
- return 1;
-}
-
-int pa_sample_spec_equal(const pa_sample_spec*a, const pa_sample_spec*b) {
- assert(a && b);
-
- return (a->format == b->format) && (a->rate == b->rate) && (a->channels == b->channels);
-}
-
-const char *pa_sample_format_to_string(pa_sample_format_t f) {
- static const char* const table[]= {
- [PA_SAMPLE_U8] = "u8",
- [PA_SAMPLE_ALAW] = "aLaw",
- [PA_SAMPLE_ULAW] = "uLaw",
- [PA_SAMPLE_S16LE] = "s16le",
- [PA_SAMPLE_S16BE] = "s16be",
- [PA_SAMPLE_FLOAT32LE] = "float32le",
- [PA_SAMPLE_FLOAT32BE] = "float32be",
- };
-
- if (f >= PA_SAMPLE_MAX)
- return NULL;
-
- return table[f];
-}
-
-char *pa_sample_spec_snprint(char *s, size_t l, const pa_sample_spec *spec) {
- assert(s && l && spec);
-
- if (!pa_sample_spec_valid(spec))
- snprintf(s, l, "Invalid");
- else
- snprintf(s, l, "%s %uch %uHz", pa_sample_format_to_string(spec->format), spec->channels, spec->rate);
-
- return s;
-}
-
-void pa_bytes_snprint(char *s, size_t l, unsigned v) {
- if (v >= ((unsigned) 1024)*1024*1024)
- snprintf(s, l, "%0.1f GB", ((double) v)/1024/1024/1024);
- else if (v >= ((unsigned) 1024)*1024)
- snprintf(s, l, "%0.1f MB", ((double) v)/1024/1024);
- else if (v >= (unsigned) 1024)
- snprintf(s, l, "%0.1f KB", ((double) v)/1024);
- else
- snprintf(s, l, "%u B", (unsigned) v);
-}
-
-pa_sample_format_t pa_parse_sample_format(const char *format) {
-
- if (strcasecmp(format, "s16le") == 0)
- return PA_SAMPLE_S16LE;
- else if (strcasecmp(format, "s16be") == 0)
- return PA_SAMPLE_S16BE;
- else if (strcasecmp(format, "s16ne") == 0 || strcasecmp(format, "s16") == 0 || strcasecmp(format, "16") == 0)
- return PA_SAMPLE_S16NE;
- else if (strcasecmp(format, "u8") == 0 || strcasecmp(format, "8") == 0)
- return PA_SAMPLE_U8;
- else if (strcasecmp(format, "float32") == 0 || strcasecmp(format, "float32ne") == 0)
- return PA_SAMPLE_FLOAT32;
- else if (strcasecmp(format, "float32le") == 0)
- return PA_SAMPLE_FLOAT32LE;
- else if (strcasecmp(format, "float32be") == 0)
- return PA_SAMPLE_FLOAT32BE;
- else if (strcasecmp(format, "ulaw") == 0)
- return PA_SAMPLE_ULAW;
- else if (strcasecmp(format, "alaw") == 0)
- return PA_SAMPLE_ALAW;
-
- return -1;
-}