pipewire/spa/plugins/alsa/alsa.c
Carlos Rafael Giani 8e6d070148 alsa-compress-offload: Add device object and udev based autodetection
As part of this, in alsa-udev.c, certain structures and variables referred
to as "device" are renamed to "card". Otherwise, there is ambiguity, since
"device" can mean a udev device, an SPA device, a compress-offload device,
a PCM device etc.

Also, replace "card id" with "card number" to emphasize that these integers
are not actually SPA object IDs.
2023-09-02 08:28:22 +00:00

64 lines
1.7 KiB
C

/* Spa ALSA support */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
#include "config.h"
#include <errno.h>
#include <spa/support/plugin.h>
#include <spa/support/log.h>
extern const struct spa_handle_factory spa_alsa_source_factory;
extern const struct spa_handle_factory spa_alsa_sink_factory;
extern const struct spa_handle_factory spa_alsa_udev_factory;
extern const struct spa_handle_factory spa_alsa_pcm_device_factory;
extern const struct spa_handle_factory spa_alsa_seq_bridge_factory;
extern const struct spa_handle_factory spa_alsa_acp_device_factory;
#ifdef HAVE_ALSA_COMPRESS_OFFLOAD
extern const struct spa_handle_factory spa_alsa_compress_offload_sink_factory;
extern const struct spa_handle_factory spa_alsa_compress_offload_device_factory;
#endif
struct spa_log_topic log_topic = SPA_LOG_TOPIC(0, "spa.alsa");
struct spa_log_topic *alsa_log_topic = &log_topic;
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_alsa_source_factory;
break;
case 1:
*factory = &spa_alsa_sink_factory;
break;
case 2:
*factory = &spa_alsa_udev_factory;
break;
case 3:
*factory = &spa_alsa_pcm_device_factory;
break;
case 4:
*factory = &spa_alsa_seq_bridge_factory;
break;
case 5:
*factory = &spa_alsa_acp_device_factory;
break;
#ifdef HAVE_ALSA_COMPRESS_OFFLOAD
case 6:
*factory = &spa_alsa_compress_offload_sink_factory;
break;
case 7:
*factory = &spa_alsa_compress_offload_device_factory;
break;
#endif
default:
return 0;
}
(*index)++;
return 1;
}