smokephil/ardour
1
0
Fork 0
mirror of https://github.com/Ardour/ardour.git synced 2025-12-08 15:54:57 +01:00
Code Issues Projects Releases Wiki Activity

PulseAudio: set buffer attributes where they are used

Browse source 
Just moving code.
This commit is contained in:
Mads Kiilerich 2022-11-02 15:04:17 +01:00 • committed by Robin Gareus
parent 8e7ef0d42c
commit 584ee51ca8
No known key found for this signature in database
GPG key ID: A090BCE02CF57F04
1 changed files with 8 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

17
libs/backends/pulseaudio/pulseaudio_backend.cc
View file

@ -211,19 +211,10 @@ int
PulseAudioBackend::init_pulse () PulseAudioBackend::init_pulse ()
{ {
pa_sample_spec ss; pa_sample_spec ss;
pa_buffer_attr ba;
ss.channels = N_CHANNELS; ss.channels = N_CHANNELS;
ss.rate = _samplerate; ss.rate = _samplerate;
ss.format = PA_SAMPLE_FLOAT32LE; ss.format = PA_SAMPLE_FLOAT32LE;
/* https://freedesktop.org/software/pulseaudio/doxygen/structpa__buffer__attr.html */
ba.minreq = _samples_per_period * N_CHANNELS * sizeof (float);
ba.maxlength = 2 * ba.minreq;
ba.prebuf = (uint32_t)-1;
ba.tlength = (uint32_t)-1;
ba.fragsize = 0; // capture only
if (!pa_sample_spec_valid (&ss)) { if (!pa_sample_spec_valid (&ss)) {
PBD::error << _("PulseAudioBackend: Default sample spec not valid") << endmsg; PBD::error << _("PulseAudioBackend: Default sample spec not valid") << endmsg;
return AudioDeviceInvalidError; return AudioDeviceInvalidError;
@ -294,6 +285,14 @@ PulseAudioBackend::init_pulse ()
pa_stream_set_underflow_callback (p_stream, PulseAudioBackend::stream_xrun_cb, this); pa_stream_set_underflow_callback (p_stream, PulseAudioBackend::stream_xrun_cb, this);
pa_stream_set_overflow_callback (p_stream, PulseAudioBackend::stream_xrun_cb, this); pa_stream_set_overflow_callback (p_stream, PulseAudioBackend::stream_xrun_cb, this);
pa_buffer_attr ba;
/* https://freedesktop.org/software/pulseaudio/doxygen/structpa__buffer__attr.html */
ba.minreq = _samples_per_period * N_CHANNELS * sizeof (float);
ba.maxlength = 2 * ba.minreq;
ba.prebuf = (uint32_t)-1;
ba.tlength = (uint32_t)-1;
ba.fragsize = 0; // capture only
/* https://freedesktop.org/software/pulseaudio/doxygen/def_8h.html#a6966d809483170bc6d2e6c16188850fc */ /* https://freedesktop.org/software/pulseaudio/doxygen/def_8h.html#a6966d809483170bc6d2e6c16188850fc */
pa_stream_flags_t sf = (pa_stream_flags_t) ( pa_stream_flags_t sf = (pa_stream_flags_t) (
(int)PA_STREAM_START_CORKED (int)PA_STREAM_START_CORKED