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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 <spa/interfaces/audio/aec.h>
#include <spa/support/log.h>
#include <spa/utils/string.h>
#include <spa/utils/names.h>
#include <spa/support/plugin.h>
struct impl {
struct spa_handle handle;
struct spa_audio_aec aec;
struct spa_log *log;
struct spa_hook_list hooks_list;
uint32_t channels;
};
static struct spa_log_topic log_topic = SPA_LOG_TOPIC(0, "spa.aec.null");
#undef SPA_LOG_TOPIC_DEFAULT
#define SPA_LOG_TOPIC_DEFAULT &log_topic
static int null_init(void *object, const struct spa_dict *args, const struct spa_audio_info_raw *info)
{
struct impl *impl = object;
impl->channels = info->channels;
return 0;
}
static int null_run(void *object, const float *rec[], const float *play[], float *out[], uint32_t n_samples)
{
struct impl *impl = object;
uint32_t i;
for (i = 0; i < impl->channels; i++)
memcpy(out[i], rec[i], n_samples * sizeof(float));
return 0;
}
static const struct spa_audio_aec_methods impl_aec = {
SPA_VERSION_AUDIO_AEC,
.init = null_init,
.run = null_run,
};
static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface)
{
spa_return_val_if_fail(handle != NULL, -EINVAL);
spa_return_val_if_fail(interface != NULL, -EINVAL);
struct impl *impl = (struct impl *) handle;
if (spa_streq(type, SPA_TYPE_INTERFACE_AUDIO_AEC))
*interface = &impl->aec;
else
return -ENOENT;
return 0;
}
static int impl_clear(struct spa_handle *handle)
{
spa_return_val_if_fail(handle != NULL, -EINVAL);
return 0;
}
static size_t
impl_get_size(const struct spa_handle_factory *factory,
const struct spa_dict *params)
{
return sizeof(struct impl);
}
static int
impl_init(const struct spa_handle_factory *factory,
struct spa_handle *handle,
const struct spa_dict *info,
const struct spa_support *support,
uint32_t n_support)
{
spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(handle != NULL, -EINVAL);
handle->get_interface = impl_get_interface;
handle->clear = impl_clear;
struct impl *impl = (struct impl *) handle;
impl->aec.iface = SPA_INTERFACE_INIT(
SPA_TYPE_INTERFACE_AUDIO_AEC,
SPA_VERSION_AUDIO_AEC,
&impl_aec, impl);
impl->aec.name = "null";
impl->aec.info = NULL;
impl->aec.latency = NULL;
impl->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
spa_log_topic_init(impl->log, &log_topic);
spa_hook_list_init(&impl->hooks_list);
return 0;
}
static const struct spa_interface_info impl_interfaces[] = {
{SPA_TYPE_INTERFACE_AUDIO_AEC,},
};
static int
impl_enum_interface_info(const struct spa_handle_factory *factory,
const struct spa_interface_info **info,
uint32_t *index)
{
spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(info != NULL, -EINVAL);
spa_return_val_if_fail(index != NULL, -EINVAL);
switch (*index) {
case 0:
*info = &impl_interfaces[*index];
break;
default:
return 0;
}
(*index)++;
return 1;
}
static const struct spa_handle_factory spa_aec_null_factory = {
SPA_VERSION_HANDLE_FACTORY,
SPA_NAME_AEC,
NULL,
impl_get_size,
impl_init,
impl_enum_interface_info,
};
SPA_EXPORT
int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index)
{
spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(index != NULL, -EINVAL);
switch (*index) {
case 0:
*factory = &spa_aec_null_factory;
break;
default:
return 0;
}
(*index)++;
return 1;
}
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