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pipewire/spa/plugins/alsa/alsa.c

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treewide: use SPDX tags to specify copyright information SPDX tags make the licensing information easy to understand and clear, and they are machine parseable. See https://spdx.dev for more information.
2023-02-08 18:12:00 +01:00
/* Spa ALSA support */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
more hacking Move plugin API to separate directory for now Add ringbuffer and way to get ringbuffer from a port
2016-06-28 12:21:56 +02:00
Add support for ALSA compressed offload See https://docs.kernel.org/sound/designs/compress-offload.html https://github.com/alsa-project/tinycompress
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#include "config.h"
Use errno for result errors Make new enumeration for data transport status and use errno style error numbers for errors.
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#include <errno.h>
Reorganise SPA tree Reorganise the SPA includes to make it more extensible later Simplify the naming of the buffer and meta params
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#include <spa/support/plugin.h>
spa: implement a log topic for alsa
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#include <spa/support/log.h>
more hacking Move plugin API to separate directory for now Add ringbuffer and way to get ringbuffer from a port
2016-06-28 12:21:56 +02:00
spa: remove unnecessary indirection for some `spa_log_topic`s This results in shorter machine code since it removes one pointer load and a NULL check.
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#include "alsa.h"
spa: don't use typedef for struct and enum
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extern const struct spa_handle_factory spa_alsa_source_factory;
extern const struct spa_handle_factory spa_alsa_sink_factory;
monitor: remove monitor API and use device Remove the monitor API, we can use the device API for it. Make sure we support creating devices (like alsa) from another device (udev). Use new object.id to store the object id in the object properties. Use the port.id/node.id etc to make relations to other objects.
2019-09-20 13:04:14 +02:00
extern const struct spa_handle_factory spa_alsa_udev_factory;
alsa: Rename spa_alsa_device_factory to spa_alsa_pcm_device_factory This makes it clear that this is specifically a factory for PCM nodes.
2023-08-30 22:50:12 +02:00
extern const struct spa_handle_factory spa_alsa_pcm_device_factory;
media-session: start the midi bridge from the session
2019-10-02 21:12:42 +02:00
extern const struct spa_handle_factory spa_alsa_seq_bridge_factory;
alsa-acp: Add libacp based card device libacp is a port and wrapper around the pulseaudio card profile code. It uses a set of templates for construct a card profile and mixer port settings. It also has support for UCM when available for the hardware.
2020-05-15 19:42:15 +02:00
extern const struct spa_handle_factory spa_alsa_acp_device_factory;
Rename "compressed-offload to "Compress-Offload" in the code
2022-11-23 15:55:00 +01:00
#ifdef HAVE_ALSA_COMPRESS_OFFLOAD
extern const struct spa_handle_factory spa_alsa_compress_offload_sink_factory;
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.
2023-08-30 23:52:14 +02:00
extern const struct spa_handle_factory spa_alsa_compress_offload_device_factory;
Add support for ALSA compressed offload See https://docs.kernel.org/sound/designs/compress-offload.html https://github.com/alsa-project/tinycompress
2022-09-20 15:13:16 +05:30
#endif
more hacking Move plugin API to separate directory for now Add ringbuffer and way to get ringbuffer from a port
2016-06-28 12:21:56 +02:00
spa: export log topic enumerations
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SPA_LOG_TOPIC_DEFINE(alsa_log_topic, "spa.alsa");
SPA_LOG_TOPIC_ENUM_DEFINE_REGISTERED;
spa: implement a log topic for alsa
2021-09-23 14:25:32 +10:00
use SPA_EXPORT to export symbols
2019-02-06 13:24:41 +01:00
SPA_EXPORT
Use errno for result errors Make new enumeration for data transport status and use errno style error numbers for errors.
2017-11-13 09:41:41 +01:00
int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index)
more hacking Move plugin API to separate directory for now Add ringbuffer and way to get ringbuffer from a port
2016-06-28 12:21:56 +02:00
{
Use errno for result errors Make new enumeration for data transport status and use errno style error numbers for errors.
2017-11-13 09:41:41 +01:00
spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(index != NULL, -EINVAL);
inspect: improve output Keep state variable to enumerate things. This allows us to remove the expectation that the same index will give the same item. Use a new rectangle type for video size. When enumerating sizes, this allows us to specify relations between width and height more easily. Remove the struct and bytes type, they are like pointer. Add filter to enum_formats to speed up enumerations.
2016-07-15 18:22:29 +02:00
Use errno for result errors Make new enumeration for data transport status and use errno style error numbers for errors.
2017-11-13 09:41:41 +01:00
switch (*index) {
indent
2017-05-26 08:05:01 +02:00
case 0:
*factory = &spa_alsa_source_factory;
break;
case 1:
*factory = &spa_alsa_sink_factory;
break;
case 2:
meson: fix build with missing libudev-devel
2024-01-26 13:28:07 +01:00
#ifdef HAVE_LIBUDEV
monitor: remove monitor API and use device Remove the monitor API, we can use the device API for it. Make sure we support creating devices (like alsa) from another device (udev). Use new object.id to store the object id in the object properties. Use the port.id/node.id etc to make relations to other objects.
2019-09-20 13:04:14 +02:00
*factory = &spa_alsa_udev_factory;
indent
2017-05-26 08:05:01 +02:00
break;
meson: fix build with missing libudev-devel
2024-01-26 13:28:07 +01:00
#else
(*index)++;
SPA_FALLTHROUGH;
#endif
device: add device object Make a device object, let the v4l2 monitor create device objects The device object is responsible for dynamically creating nodes.
2018-11-23 12:43:47 +01:00
case 3:
alsa: Rename spa_alsa_device_factory to spa_alsa_pcm_device_factory This makes it clear that this is specifically a factory for PCM nodes.
2023-08-30 22:50:12 +02:00
*factory = &spa_alsa_pcm_device_factory;
device: add device object Make a device object, let the v4l2 monitor create device objects The device object is responsible for dynamically creating nodes.
2018-11-23 12:43:47 +01:00
break;
alsa: add midi bridge Add a node that exposes all midi input and output ports and converts to and from PipeWire control streams.
2019-09-19 16:57:00 +02:00
case 4:
media-session: start the midi bridge from the session
2019-10-02 21:12:42 +02:00
*factory = &spa_alsa_seq_bridge_factory;
alsa: add midi bridge Add a node that exposes all midi input and output ports and converts to and from PipeWire control streams.
2019-09-19 16:57:00 +02:00
break;
alsa-acp: Add libacp based card device libacp is a port and wrapper around the pulseaudio card profile code. It uses a set of templates for construct a card profile and mixer port settings. It also has support for UCM when available for the hardware.
2020-05-15 19:42:15 +02:00
case 5:
*factory = &spa_alsa_acp_device_factory;
break;
Rename "compressed-offload to "Compress-Offload" in the code
2022-11-23 15:55:00 +01:00
#ifdef HAVE_ALSA_COMPRESS_OFFLOAD
Add support for ALSA compressed offload See https://docs.kernel.org/sound/designs/compress-offload.html https://github.com/alsa-project/tinycompress
2022-09-20 15:13:16 +05:30
case 6:
Rename "compressed-offload to "Compress-Offload" in the code
2022-11-23 15:55:00 +01:00
*factory = &spa_alsa_compress_offload_sink_factory;
Add support for ALSA compressed offload See https://docs.kernel.org/sound/designs/compress-offload.html https://github.com/alsa-project/tinycompress
2022-09-20 15:13:16 +05:30
break;
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.
2023-08-30 23:52:14 +02:00
case 7:
*factory = &spa_alsa_compress_offload_device_factory;
break;
Add support for ALSA compressed offload See https://docs.kernel.org/sound/designs/compress-offload.html https://github.com/alsa-project/tinycompress
2022-09-20 15:13:16 +05:30
#endif
indent
2017-05-26 08:05:01 +02:00
default:
Use errno for result errors Make new enumeration for data transport status and use errno style error numbers for errors.
2017-11-13 09:41:41 +01:00
return 0;
indent
2017-05-26 08:05:01 +02:00
}
Use errno for result errors Make new enumeration for data transport status and use errno style error numbers for errors.
2017-11-13 09:41:41 +01:00
(*index)++;
return 1;
more hacking Move plugin API to separate directory for now Add ringbuffer and way to get ringbuffer from a port
2016-06-28 12:21:56 +02:00
}
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