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audio/paaudio: fix ignored buffer_length setting
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1# -*- mode: python -*-
2#
3# Copyright (C) 2015-2019 Zoltán Kővágó <DirtY.iCE.hu@gmail.com>
4#
5# This work is licensed under the terms of the GNU GPL, version 2 or later.
6# See the COPYING file in the top-level directory.
7
8##
9# @AudiodevPerDirectionOptions:
10#
11# General audio backend options that are used for both playback and
12# recording.
13#
14# @fixed-settings: use fixed settings for host input/output. When off,
15# frequency, channels and format must not be
16# specified (default true)
17#
18# @frequency: frequency to use when using fixed settings
19# (default 44100)
20#
21# @channels: number of channels when using fixed settings (default 2)
22#
23# @voices: number of voices to use (default 1)
24#
25# @format: sample format to use when using fixed settings
26# (default s16)
27#
28# @buffer-length: the buffer length in microseconds
29#
30# Since: 4.0
31##
32{ 'struct': 'AudiodevPerDirectionOptions',
33 'data': {
34 '*fixed-settings': 'bool',
35 '*frequency': 'uint32',
36 '*channels': 'uint32',
37 '*voices': 'uint32',
38 '*format': 'AudioFormat',
39 '*buffer-length': 'uint32' } }
40
41##
42# @AudiodevGenericOptions:
43#
44# Generic driver-specific options.
45#
46# @in: options of the capture stream
47#
48# @out: options of the playback stream
49#
50# Since: 4.0
51##
52{ 'struct': 'AudiodevGenericOptions',
53 'data': {
54 '*in': 'AudiodevPerDirectionOptions',
55 '*out': 'AudiodevPerDirectionOptions' } }
56
57##
58# @AudiodevAlsaPerDirectionOptions:
59#
60# Options of the ALSA backend that are used for both playback and
61# recording.
62#
63# @dev: the name of the ALSA device to use (default 'default')
64#
65# @period-length: the period length in microseconds
66#
67# @try-poll: attempt to use poll mode, falling back to non-polling
68# access on failure (default true)
69#
70# Since: 4.0
71##
72{ 'struct': 'AudiodevAlsaPerDirectionOptions',
73 'base': 'AudiodevPerDirectionOptions',
74 'data': {
75 '*dev': 'str',
76 '*period-length': 'uint32',
77 '*try-poll': 'bool' } }
78
79##
80# @AudiodevAlsaOptions:
81#
82# Options of the ALSA audio backend.
83#
84# @in: options of the capture stream
85#
86# @out: options of the playback stream
87#
88# @threshold: set the threshold (in microseconds) when playback starts
89#
90# Since: 4.0
91##
92{ 'struct': 'AudiodevAlsaOptions',
93 'data': {
94 '*in': 'AudiodevAlsaPerDirectionOptions',
95 '*out': 'AudiodevAlsaPerDirectionOptions',
96 '*threshold': 'uint32' } }
97
98##
99# @AudiodevCoreaudioPerDirectionOptions:
100#
101# Options of the Core Audio backend that are used for both playback and
102# recording.
103#
104# @buffer-count: number of buffers
105#
106# Since: 4.0
107##
108{ 'struct': 'AudiodevCoreaudioPerDirectionOptions',
109 'base': 'AudiodevPerDirectionOptions',
110 'data': {
111 '*buffer-count': 'uint32' } }
112
113##
114# @AudiodevCoreaudioOptions:
115#
116# Options of the coreaudio audio backend.
117#
118# @in: options of the capture stream
119#
120# @out: options of the playback stream
121#
122# Since: 4.0
123##
124{ 'struct': 'AudiodevCoreaudioOptions',
125 'data': {
126 '*in': 'AudiodevCoreaudioPerDirectionOptions',
127 '*out': 'AudiodevCoreaudioPerDirectionOptions' } }
128
129##
130# @AudiodevDsoundOptions:
131#
132# Options of the DirectSound audio backend.
133#
134# @in: options of the capture stream
135#
136# @out: options of the playback stream
137#
138# @latency: add extra latency to playback in microseconds
139# (default 10000)
140#
141# Since: 4.0
142##
143{ 'struct': 'AudiodevDsoundOptions',
144 'data': {
145 '*in': 'AudiodevPerDirectionOptions',
146 '*out': 'AudiodevPerDirectionOptions',
147 '*latency': 'uint32' } }
148
149##
150# @AudiodevOssPerDirectionOptions:
151#
152# Options of the OSS backend that are used for both playback and
153# recording.
154#
155# @dev: file name of the OSS device (default '/dev/dsp')
156#
157# @buffer-count: number of buffers
158#
159# @try-poll: attempt to use poll mode, falling back to non-polling
160# access on failure (default true)
161#
162# Since: 4.0
163##
164{ 'struct': 'AudiodevOssPerDirectionOptions',
165 'base': 'AudiodevPerDirectionOptions',
166 'data': {
167 '*dev': 'str',
168 '*buffer-count': 'uint32',
169 '*try-poll': 'bool' } }
170
171##
172# @AudiodevOssOptions:
173#
174# Options of the OSS audio backend.
175#
176# @in: options of the capture stream
177#
178# @out: options of the playback stream
179#
180# @try-mmap: try using memory-mapped access, falling back to
181# non-memory-mapped access on failure (default true)
182#
183# @exclusive: open device in exclusive mode (vmix won't work)
184# (default false)
185#
186# @dsp-policy: set the timing policy of the device (between 0 and 10,
187# where smaller number means smaller latency but higher
188# CPU usage) or -1 to use fragment mode (option ignored
189# on some platforms) (default 5)
190#
191# Since: 4.0
192##
193{ 'struct': 'AudiodevOssOptions',
194 'data': {
195 '*in': 'AudiodevOssPerDirectionOptions',
196 '*out': 'AudiodevOssPerDirectionOptions',
197 '*try-mmap': 'bool',
198 '*exclusive': 'bool',
199 '*dsp-policy': 'uint32' } }
200
201##
202# @AudiodevPaPerDirectionOptions:
203#
204# Options of the Pulseaudio backend that are used for both playback and
205# recording.
206#
207# @name: name of the sink/source to use
208#
209# Since: 4.0
210##
211{ 'struct': 'AudiodevPaPerDirectionOptions',
212 'base': 'AudiodevPerDirectionOptions',
213 'data': {
214 '*name': 'str' } }
215
216##
217# @AudiodevPaOptions:
218#
219# Options of the PulseAudio audio backend.
220#
221# @in: options of the capture stream
222#
223# @out: options of the playback stream
224#
225# @server: PulseAudio server address (default: let PulseAudio choose)
226#
227# Since: 4.0
228##
229{ 'struct': 'AudiodevPaOptions',
230 'data': {
231 '*in': 'AudiodevPaPerDirectionOptions',
232 '*out': 'AudiodevPaPerDirectionOptions',
233 '*server': 'str' } }
234
235##
236# @AudiodevWavOptions:
237#
238# Options of the wav audio backend.
239#
240# @in: options of the capture stream
241#
242# @out: options of the playback stream
243#
244# @path: name of the wav file to record (default 'qemu.wav')
245#
246# Since: 4.0
247##
248{ 'struct': 'AudiodevWavOptions',
249 'data': {
250 '*in': 'AudiodevPerDirectionOptions',
251 '*out': 'AudiodevPerDirectionOptions',
252 '*path': 'str' } }
253
254
255##
256# @AudioFormat:
257#
258# An enumeration of possible audio formats.
259#
260# Since: 4.0
261##
262{ 'enum': 'AudioFormat',
263 'data': [ 'u8', 's8', 'u16', 's16', 'u32', 's32' ] }
264
265##
266# @AudiodevDriver:
267#
268# An enumeration of possible audio backend drivers.
269#
270# Since: 4.0
271##
272{ 'enum': 'AudiodevDriver',
273 'data': [ 'none', 'alsa', 'coreaudio', 'dsound', 'oss', 'pa', 'sdl',
274 'spice', 'wav' ] }
275
276##
277# @Audiodev:
278#
279# Options of an audio backend.
280#
281# @id: identifier of the backend
282#
283# @driver: the backend driver to use
284#
285# @timer-period: timer period (in microseconds, 0: use lowest possible)
286#
287# Since: 4.0
288##
289{ 'union': 'Audiodev',
290 'base': {
291 'id': 'str',
292 'driver': 'AudiodevDriver',
293 '*timer-period': 'uint32' },
294 'discriminator': 'driver',
295 'data': {
296 'none': 'AudiodevGenericOptions',
297 'alsa': 'AudiodevAlsaOptions',
298 'coreaudio': 'AudiodevCoreaudioOptions',
299 'dsound': 'AudiodevDsoundOptions',
300 'oss': 'AudiodevOssOptions',
301 'pa': 'AudiodevPaOptions',
302 'sdl': 'AudiodevGenericOptions',
303 'spice': 'AudiodevGenericOptions',
304 'wav': 'AudiodevWavOptions' } }