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pulseaudio: Initialize fragsize to fix mic recording 

fragsize wasn't initialized, and it is used for recording.
If the value was 0 or -1, pulseaudio configures it itself. But sometimes
we can get a random (and large) value that makes pulseaudio give us
large sample at a very low frequency.

https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/blob/master/src/pulse/def.h#L453
https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/blob/v13.0/src/pulsecore/protocol-native.c#L409
This commit is contained in:
Romain Roffé 2021-02-17 20:53:35 +01:00 committed by Ryan C. Gordon
parent 0a58010c0d
commit ef85ed9352
1 changed files with 2 additions and 0 deletions
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2
src/audio/pulseaudio/SDL_pulseaudio.c
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@ -600,6 +600,7 @@ PULSEAUDIO_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
/* Reduced prebuffering compared to the defaults. */ /* Reduced prebuffering compared to the defaults. */
#ifdef PA_STREAM_ADJUST_LATENCY #ifdef PA_STREAM_ADJUST_LATENCY
paattr.fragsize = this->spec.size;
/* 2x original requested bufsize */ /* 2x original requested bufsize */
paattr.tlength = h->mixlen * 4; paattr.tlength = h->mixlen * 4;
paattr.prebuf = -1; paattr.prebuf = -1;
@ -608,6 +609,7 @@ PULSEAUDIO_OpenDevice(_THIS, void *handle, const char *devname, int iscapture)
paattr.minreq = h->mixlen; paattr.minreq = h->mixlen;
flags = PA_STREAM_ADJUST_LATENCY; flags = PA_STREAM_ADJUST_LATENCY;
#else #else
paattr.fragsize = this->spec.size;
paattr.tlength = h->mixlen*2; paattr.tlength = h->mixlen*2;
paattr.prebuf = h->mixlen*2; paattr.prebuf = h->mixlen*2;
paattr.maxlength = h->mixlen*2; paattr.maxlength = h->mixlen*2;