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sndio: Allow tweaking application buffer size

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It defaults to 250 ms.
This commit is contained in:
Dimitris Papastamos 2016-06-22 14:10:23 +01:00 committed by Max Kellermann
parent 85ef034fd0
commit 8406864963
1 changed files with 6 additions and 0 deletions
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6
src/output/plugins/SndioOutputPlugin.cxx
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@ -36,10 +36,13 @@
#define SIO_DEVANY "default" #define SIO_DEVANY "default"
#endif #endif
static constexpr unsigned MPD_SNDIO_BUFFER_TIME_MS = 250;
class SndioOutput { class SndioOutput {
friend struct AudioOutputWrapper<SndioOutput>; friend struct AudioOutputWrapper<SndioOutput>;
AudioOutput base; AudioOutput base;
const char *device; const char *device;
unsigned buffer_time; /* in ms */
struct sio_hdl *sio_hdl; struct sio_hdl *sio_hdl;
public: public:
@ -66,6 +69,8 @@ SndioOutput::Configure(const ConfigBlock &block, Error &error)
if (!base.Configure(block, error)) if (!base.Configure(block, error))
return false; return false;
device = block.GetBlockValue("device", SIO_DEVANY); device = block.GetBlockValue("device", SIO_DEVANY);
buffer_time = block.GetBlockValue("buffer_time",
MPD_SNDIO_BUFFER_TIME_MS);
return true; return true;
} }
@ -133,6 +138,7 @@ SndioOutput::Open(AudioFormat &audio_format, gcc_unused Error &error)
par.pchan = chans; par.pchan = chans;
par.sig = 1; par.sig = 1;
par.le = SIO_LE_NATIVE; par.le = SIO_LE_NATIVE;
par.appbufsz = rate * buffer_time / 1000;
if (!sio_setpar(sio_hdl, &par) || if (!sio_setpar(sio_hdl, &par) ||
!sio_getpar(sio_hdl, &par)) { !sio_getpar(sio_hdl, &par)) {