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/***
This file is part of PulseAudio.
Copyright 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 2.1 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, see <http://www.gnu.org/licenses/>.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "rtp.h"
#include <pulsecore/core-util.h>
uint8_t pa_rtp_payload_from_sample_spec(const pa_sample_spec *ss) {
pa_assert(ss);
if (ss->format == PA_SAMPLE_S16BE && ss->rate == 44100 && ss->channels == 2)
return 10;
if (ss->format == PA_SAMPLE_S16BE && ss->rate == 44100 && ss->channels == 1)
return 11;
return 127;
}
pa_sample_spec *pa_rtp_sample_spec_from_payload(uint8_t payload, pa_sample_spec *ss) {
pa_assert(ss);
switch (payload) {
case 10:
ss->channels = 2;
ss->format = PA_SAMPLE_S16BE;
ss->rate = 44100;
break;
case 11:
ss->channels = 1;
ss->format = PA_SAMPLE_S16BE;
ss->rate = 44100;
break;
default:
return NULL;
}
return ss;
}
pa_sample_spec *pa_rtp_sample_spec_fixup(pa_sample_spec * ss) {
pa_assert(ss);
if (!pa_rtp_sample_spec_valid(ss))
ss->format = PA_SAMPLE_S16BE;
pa_assert(pa_rtp_sample_spec_valid(ss));
return ss;
}
int pa_rtp_sample_spec_valid(const pa_sample_spec *ss) {
pa_assert(ss);
if (!pa_sample_spec_valid(ss))
return 0;
return ss->format == PA_SAMPLE_S16BE;
}
const char* pa_rtp_format_to_string(pa_sample_format_t f) {
switch (f) {
case PA_SAMPLE_S16BE:
return "L16";
default:
return NULL;
}
}
pa_sample_format_t pa_rtp_string_to_format(const char *s) {
pa_assert(s);
if (pa_streq(s, "L16"))
return PA_SAMPLE_S16BE;
else
return PA_SAMPLE_INVALID;
}
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