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Round when calculating NumUpdates from PulseAudio's minreq

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This commit is contained in:
Chris Robinson
2012-09-25 11:32:49 -07:00
parent d19d7321d9
commit 012e61b105
1 changed files with 8 additions and 7 deletions
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Alc/backends/pulseaudio.c
+8 -7
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@@ -1004,6 +1004,7 @@ static ALCboolean pulse_reset_playback(ALCdevice *device)
pulse_data *data = device->ExtraData;
pa_stream_flags_t flags = 0;
pa_channel_map chanmap;
ALuint len;
pa_threaded_mainloop_lock(data->loop);
@@ -1099,11 +1100,11 @@ static ALCboolean pulse_reset_playback(ALCdevice *device)
/* Server updated our playback rate, so modify the buffer attribs
* accordingly. */
data->attr.minreq = (ALuint64)device->UpdateSize * data->spec.rate /
device->Frequency;
device->UpdateSize = (ALuint64)device->UpdateSize * data->spec.rate /
device->Frequency;
if((CPUCapFlags&CPU_CAP_SSE))
data->attr.minreq = (data->attr.minreq+3)&~3;
data->attr.minreq *= pa_frame_size(&data->spec);
device->UpdateSize = (device->UpdateSize+3)&~3;
data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
data->attr.prebuf = 0;
@@ -1121,10 +1122,10 @@ static ALCboolean pulse_reset_playback(ALCdevice *device)
#endif
stream_buffer_attr_callback(data->stream, device);
device->NumUpdates = device->UpdateSize*device->NumUpdates /
(data->attr.minreq/pa_frame_size(&data->spec));
len = data->attr.minreq / pa_frame_size(&data->spec);
device->NumUpdates = (device->UpdateSize*device->NumUpdates + len/2) / len;
device->NumUpdates = maxu(device->NumUpdates, 2);
device->UpdateSize = data->attr.minreq / pa_frame_size(&data->spec);
device->UpdateSize = len;
pa_threaded_mainloop_unlock(data->loop);
return ALC_TRUE;