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[Qemu-devel] [PATCH v3 01/50] qapi: qapi for audio backends
From: |
Kővágó, Zoltán |
Subject: |
[Qemu-devel] [PATCH v3 01/50] qapi: qapi for audio backends |
Date: |
Thu, 17 Jan 2019 00:36:34 +0100 |
This patch adds structures into qapi to replace the existing
configuration structures used by audio backends currently. This qapi
will be the base of the -audiodev command line parameter (that replaces
the old environment variables based config).
This is not a 1:1 translation of the old options, I've tried to make
them much more consistent (e.g. almost every backend had an option to
specify buffer size, but the name was different for every backend, and
some backends required usecs, while some other required frames, samples
or bytes). Also tried to reduce the number of abbreviations used by the
config keys.
Some of the more important changes:
* use `in` and `out` instead of `ADC` and `DAC`, as the former is more
user friendly imho
* moved buffer settings into the global setting area (so it's the same
for all backends that support it. Backends that can't change buffer
size will simply ignore them). Also using usecs, as it's probably more
user friendly than samples or bytes.
* try-poll is now an alsa backend specific option (as all other backends
currently ignore it)
Signed-off-by: Kővágó, Zoltán <address@hidden>
---
Notes:
Changes from v2:
* update copyright, version numbers
* remove #optional
* per-direction options are now optional (needed for
qobject_object_visitor_new_str)
* removed unnecessary AudiodevNoOptions
* changed integers to unsigned
Makefile.objs | 6 +-
qapi/audio.json | 233 ++++++++++++++++++++++++++++++++++++++++++
qapi/qapi-schema.json | 1 +
3 files changed, 237 insertions(+), 3 deletions(-)
create mode 100644 qapi/audio.json
diff --git a/Makefile.objs b/Makefile.objs
index 456115992a..e830cdbafc 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -1,6 +1,6 @@
-QAPI_MODULES = block-core block char common crypto introspect job migration
-QAPI_MODULES += misc net rdma rocker run-state sockets tpm trace transaction
-QAPI_MODULES += ui
+QAPI_MODULES = audio block-core block char common crypto introspect job
+QAPI_MODULES += migration misc net rdma rocker run-state sockets tpm trace
+QAPI_MODULES += transaction ui
#######################################################################
# Common libraries for tools and emulators
diff --git a/qapi/audio.json b/qapi/audio.json
new file mode 100644
index 0000000000..bd6e2494bd
--- /dev/null
+++ b/qapi/audio.json
@@ -0,0 +1,233 @@
+# -*- mode: python -*-
+#
+# Copyright (C) 2015-2019 Zoltán Kővágó <address@hidden>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or later.
+# See the COPYING file in the top-level directory.
+
+##
+# @AudiodevAlsaPerDirectionOptions:
+#
+# Options of the alsa backend that are used for both playback and recording.
+#
+# @dev: the name of the alsa device to use (default 'default')
+#
+# @try-poll: attempt to use poll mode, falling back to non polling access on
+# failure (default on)
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevAlsaPerDirectionOptions',
+ 'data': {
+ '*dev': 'str',
+ '*try-poll': 'bool' } }
+
+##
+# @AudiodevAlsaOptions:
+#
+# Options of the alsa audio backend.
+#
+# @alsa-in: options of the capture stream
+#
+# @alsa-out: options of the playback stream
+#
+# @threshold: set the threshold (in microseconds) when playback starts
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevAlsaOptions',
+ 'data': {
+ '*alsa-in': 'AudiodevAlsaPerDirectionOptions',
+ '*alsa-out': 'AudiodevAlsaPerDirectionOptions',
+ '*threshold': 'uint32' } }
+
+##
+# @AudiodevDsoundOptions:
+#
+# Options of the dsound audio backend.
+#
+# @latency: add extra latency to playback in microseconds (default 10000)
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevDsoundOptions',
+ 'data': {
+ '*latency': 'uint32' } }
+
+##
+# @AudiodevOssPerDirectionOptions:
+#
+# Options of the oss backend that are used for both playback and recording.
+#
+# @dev: file name of the oss device (default '/dev/dsp')
+#
+# @try-poll: attempt to use poll mode, falling back to non polling access on
+# failure (default on)
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevOssPerDirectionOptions',
+ 'data': {
+ '*dev': 'str',
+ '*try-poll': 'bool' } }
+
+##
+# @AudiodevOssOptions:
+#
+# Options of the oss audio backend.
+#
+# @oss-in: options of the capture stream
+#
+# @oss-out: options of the playback stream
+#
+# @try-mmap: try using memory mapped access, falling back to non
+# memory mapped access on failure (default off)
+#
+# @exclusive: open device in exclusive mode (vmix won't work) (default off)
+#
+# @dsp-policy: set the timing policy of the device (between 0 and 10, where
+# smaller number means smaller latency but higher CPU usage) or -1
+# to use fragment mode (option ignored on some platforms)
+# (default 5)
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevOssOptions',
+ 'data': {
+ '*oss-in': 'AudiodevOssPerDirectionOptions',
+ '*oss-out': 'AudiodevOssPerDirectionOptions',
+ '*try-mmap': 'bool',
+ '*exclusive': 'bool',
+ '*dsp-policy': 'uint32' } }
+
+##
+# @AudiodevPaPerDirectionOptions:
+#
+# Options of the pa backend that are used for both playback and recording.
+#
+# @name: name of the sink/source to use
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevPaPerDirectionOptions',
+ 'data': {
+ '*name': 'str' } }
+
+##
+# @AudiodevPaOptions:
+#
+# Options of the pa (PulseAudio) audio backend.
+#
+# @server: PulseAudio server address (default: let PulseAudio choose)
+#
+# @sink: name of the sink to use
+#
+# @source: name of the source to use
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevPaOptions',
+ 'data': {
+ '*server': 'str',
+ '*sink': 'AudiodevPaPerDirectionOptions',
+ '*source': 'AudiodevPaPerDirectionOptions' } }
+
+##
+# @AudiodevWavOptions:
+#
+# Options of the wav audio backend.
+#
+# @path: name of the wav file to record (default 'qemu.wav')
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevWavOptions',
+ 'data': {
+ '*path': 'str' } }
+
+
+##
+# @AudioFormat:
+#
+# An enumeration of possible audio formats.
+#
+# Since: 4.0
+##
+{ 'enum': 'AudioFormat',
+ 'data': [ 'u8', 's8', 'u16', 's16', 'u32', 's32' ] }
+
+##
+# @AudiodevDriver:
+#
+# An enumeration of possible audio backend drivers.
+#
+# Since: 4.0
+##
+{ 'enum': 'AudiodevDriver',
+ 'data': [ 'none', 'alsa', 'coreaudio', 'dsound', 'oss', 'pa', 'sdl', 'spice',
+ 'wav' ] }
+
+##
+# @AudiodevPerDirectionOptions:
+#
+# General audio backend options that are used for both playback and recording.
+#
+# @fixed-settings: use fixed settings for host input/output. When off,
+# frequency, channels and format must not be specified
+# (default on)
+#
+# @frequency: frequency to use when using fixed settings (default 44100)
+#
+# @channels: number of channels when using fixed settings (default 2)
+#
+# @voices: number of voices to use (default 1)
+#
+# @format: sample format to use when using fixed settings (default s16)
+#
+# @buffer-len: the buffer size in microseconds
+#
+# @buffer-count: number of buffers
+#
+# Since: 4.0
+##
+{ 'struct': 'AudiodevPerDirectionOptions',
+ 'data': {
+ '*fixed-settings': 'bool',
+ '*frequency': 'uint32',
+ '*channels': 'uint32',
+ '*voices': 'uint32',
+ '*format': 'AudioFormat',
+ '*buffer-len': 'uint32',
+ '*buffer-count': 'uint32' } }
+
+##
+# @Audiodev:
+#
+# Options of an audio backend.
+#
+# @id: identifier of the backend
+#
+# @driver: the backend driver to use
+#
+# @in: options of the capture stream
+#
+# @out: options of the playback stream
+#
+# @timer-period: timer period (in microseconds, 0: use lowest possible)
+#
+# Since: 4.0
+##
+{ 'union': 'Audiodev',
+ 'base': {
+ 'id': 'str',
+ 'driver': 'AudiodevDriver',
+ '*in': 'AudiodevPerDirectionOptions',
+ '*out': 'AudiodevPerDirectionOptions',
+ '*timer-period': 'uint32' },
+ 'discriminator': 'driver',
+ 'data': {
+ 'alsa': 'AudiodevAlsaOptions',
+ 'dsound': 'AudiodevDsoundOptions',
+ 'oss': 'AudiodevOssOptions',
+ 'pa': 'AudiodevPaOptions',
+ 'wav': 'AudiodevWavOptions' } }
diff --git a/qapi/qapi-schema.json b/qapi/qapi-schema.json
index 3bbdfcee84..d5f9856be7 100644
--- a/qapi/qapi-schema.json
+++ b/qapi/qapi-schema.json
@@ -95,3 +95,4 @@
{ 'include': 'trace.json' }
{ 'include': 'introspect.json' }
{ 'include': 'misc.json' }
+{ 'include': 'audio.json' }
--
2.20.1
- [Qemu-devel] [PATCH v3 00/50] Audio 5.1 patches, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 06/50] coreaudio: port to -audiodev config, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 08/50] noaudio: port to -audiodev config, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 03/50] audio: -audiodev command line option: documentation, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 15/50] audio: reduce glob_audio_state usage, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 09/50] ossaudio: port to -audiodev config, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 19/50] paaudio: do not move stream when sink/source name is specified, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 01/50] qapi: qapi for audio backends,
Kővágó, Zoltán <=
- [Qemu-devel] [PATCH v3 13/50] wavaudio: port to -audiodev config, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 22/50] audio: do not run each backend in audio_run, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 10/50] paaudio: port to -audiodev config, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 07/50] dsoundaudio: port to -audiodev config, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 14/50] audio: -audiodev command line option: cleanup, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 12/50] spiceaudio: port to -audiodev config, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 20/50] paaudio: properly disconnect streams in fini_*, Kővágó, Zoltán, 2019/01/16
- [Qemu-devel] [PATCH v3 11/50] sdlaudio: port to -audiodev config, Kővágó, Zoltán, 2019/01/16