157 lines
3.5 KiB
C
157 lines
3.5 KiB
C
/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2021 Wim Taymans <wim.taymans@gmail.com> */
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/* SPDX-License-Identifier: MIT */
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#include <spa/interfaces/audio/aec.h>
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#include <spa/support/log.h>
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#include <spa/utils/string.h>
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#include <spa/utils/names.h>
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#include <spa/support/plugin.h>
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struct impl {
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struct spa_handle handle;
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struct spa_audio_aec aec;
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struct spa_log *log;
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struct spa_hook_list hooks_list;
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uint32_t channels;
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};
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SPA_LOG_TOPIC_DEFINE_STATIC(log_topic, "spa.aec.null");
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#undef SPA_LOG_TOPIC_DEFAULT
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#define SPA_LOG_TOPIC_DEFAULT &log_topic
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static int null_init(void *object, const struct spa_dict *args, const struct spa_audio_info_raw *info)
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{
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struct impl *impl = object;
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impl->channels = info->channels;
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return 0;
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}
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static int null_run(void *object, const float *rec[], const float *play[], float *out[], uint32_t n_samples)
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{
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struct impl *impl = object;
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uint32_t i;
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for (i = 0; i < impl->channels; i++)
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memcpy(out[i], rec[i], n_samples * sizeof(float));
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return 0;
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}
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static const struct spa_audio_aec_methods impl_aec = {
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SPA_VERSION_AUDIO_AEC,
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.init = null_init,
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.run = null_run,
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};
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static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface)
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{
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spa_return_val_if_fail(handle != NULL, -EINVAL);
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spa_return_val_if_fail(interface != NULL, -EINVAL);
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struct impl *impl = (struct impl *) handle;
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if (spa_streq(type, SPA_TYPE_INTERFACE_AUDIO_AEC))
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*interface = &impl->aec;
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else
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return -ENOENT;
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return 0;
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}
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static int impl_clear(struct spa_handle *handle)
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{
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spa_return_val_if_fail(handle != NULL, -EINVAL);
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return 0;
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}
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static size_t
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impl_get_size(const struct spa_handle_factory *factory,
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const struct spa_dict *params)
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{
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return sizeof(struct impl);
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}
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static int
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impl_init(const struct spa_handle_factory *factory,
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struct spa_handle *handle,
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const struct spa_dict *info,
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const struct spa_support *support,
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uint32_t n_support)
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{
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spa_return_val_if_fail(factory != NULL, -EINVAL);
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spa_return_val_if_fail(handle != NULL, -EINVAL);
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handle->get_interface = impl_get_interface;
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handle->clear = impl_clear;
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struct impl *impl = (struct impl *) handle;
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impl->aec.iface = SPA_INTERFACE_INIT(
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SPA_TYPE_INTERFACE_AUDIO_AEC,
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SPA_VERSION_AUDIO_AEC,
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&impl_aec, impl);
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impl->aec.name = "null";
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impl->aec.info = NULL;
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impl->aec.latency = NULL;
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impl->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
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spa_log_topic_init(impl->log, &log_topic);
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spa_hook_list_init(&impl->hooks_list);
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return 0;
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}
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static const struct spa_interface_info impl_interfaces[] = {
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{SPA_TYPE_INTERFACE_AUDIO_AEC,},
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};
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static int
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impl_enum_interface_info(const struct spa_handle_factory *factory,
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const struct spa_interface_info **info,
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uint32_t *index)
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{
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spa_return_val_if_fail(factory != NULL, -EINVAL);
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spa_return_val_if_fail(info != NULL, -EINVAL);
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spa_return_val_if_fail(index != NULL, -EINVAL);
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switch (*index) {
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case 0:
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*info = &impl_interfaces[*index];
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break;
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default:
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return 0;
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}
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(*index)++;
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return 1;
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}
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static const struct spa_handle_factory spa_aec_null_factory = {
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SPA_VERSION_HANDLE_FACTORY,
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SPA_NAME_AEC,
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NULL,
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impl_get_size,
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impl_init,
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impl_enum_interface_info,
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};
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SPA_LOG_TOPIC_ENUM_DEFINE_REGISTERED;
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SPA_EXPORT
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int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index)
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{
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spa_return_val_if_fail(factory != NULL, -EINVAL);
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spa_return_val_if_fail(index != NULL, -EINVAL);
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switch (*index) {
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case 0:
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*factory = &spa_aec_null_factory;
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break;
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default:
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return 0;
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}
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(*index)++;
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return 1;
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}
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