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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
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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: 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.
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extern const struct spa_handle_factory spa_alsa_udev_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
extern const struct spa_handle_factory spa_alsa_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;
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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#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: implement a log topic for alsa
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struct spa_log_topic log_topic = SPA_LOG_TOPIC(0, "spa.alsa");
struct spa_log_topic *alsa_log_topic = &log_topic;
use SPA_EXPORT to export symbols
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SPA_EXPORT
Use errno for result errors Make new enumeration for data transport status and use errno style error numbers for errors.
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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
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case 0:
*factory = &spa_alsa_source_factory;
break;
case 1:
*factory = &spa_alsa_sink_factory;
break;
case 2:
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
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break;
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:
*factory = &spa_alsa_device_factory;
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;
#endif
indent
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default:
Use errno for result errors Make new enumeration for data transport status and use errno style error numbers for errors.
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return 0;
indent
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}
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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