pipewire/src/modules/module-echo-cancel/aec-webrtc.cc

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/* PipeWire
*
* Copyright © 2021 Wim Taymans <wim.taymans@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "echo-cancel.h"
struct impl {
uint32_t channels;
};
static void *webrtc_create(struct spa_dict *info, uint32_t channels)
{
struct impl *impl;
impl = (struct impl *)calloc(1, sizeof(struct impl));
impl->channels = channels;
return impl;
}
static void webrtc_destroy(void *ec)
{
free(ec);
}
static int webrtc_run(void *ec, const float *rec[], const float *play[], float *out[], uint32_t n_samples)
{
struct impl *impl = (struct impl*)ec;
uint32_t i;
for (i = 0; i < impl->channels; i++)
memcpy(out[i], rec[i], n_samples * sizeof(float));
return 0;
}
static const struct echo_cancel_info echo_cancel_webrtc_impl = {
.name = "webrtc",
.info = SPA_DICT_INIT(NULL, 0),
.create = webrtc_create,
.destroy = webrtc_destroy,
.run = webrtc_run,
};
const struct echo_cancel_info *echo_cancel_webrtc = &echo_cancel_webrtc_impl;