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output/alsa: use IsCleared() instead of IsDrained() in DrainInternal()

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Really drain all data from the period_buffer in any case.
This commit is contained in:
Max Kellermann 2019-06-27 21:53:28 +02:00
parent d66f5a8590
commit a92aa0bedc
2 changed files with 21 additions and 25 deletions
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8
src/lib/alsa/PeriodBuffer.hxx
View File

@ -77,14 +77,6 @@ public:
return tail >= capacity;
}
/**
* Has some data already been consumed at the buffer's head in
* this period?
*/
bool WasConsumed() const noexcept {
return head > 0;
}
/**
* Has all data for the current period been drained? If not,
* then there is pending data. This ignores the partial frame

8
src/output/plugins/AlsaOutputPlugin.cxx
View File

@ -747,7 +747,9 @@ AlsaOutput::DrainInternal()
/* drain ring_buffer */
CopyRingToPeriodBuffer();
if (period_buffer.WasConsumed() && !period_buffer.IsFull())
/* drain period_buffer */
if (!period_buffer.IsCleared()) {
if (!period_buffer.IsFull())
/* generate some silence to finish the partial
period */
period_buffer.FillWithSilence(silence, out_frame_size);
@ -765,9 +767,11 @@ AlsaOutput::DrainInternal()
/* need to call CopyRingToPeriodBuffer() and
WriteFromPeriodBuffer() again in the next
iteration, so don't finish the drain just yet */
iteration, so don't finish the drain just
yet */
return false;
}
}
if (!written)
/* if nothing has ever been written to the PCM, we