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pulsesink: Fix writing of buffers larger than segsize

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Fixes bug #620540.
This commit is contained in:
Sebastian Dröge 2010-06-09 16:21:55 +02:00
parent b78a27beb2
commit 57813d469f
1 changed files with 12 additions and 13 deletions
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25
ext/pulse/pulsesink.c
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@ -1272,8 +1272,14 @@ gst_pulseringbuffer_commit (GstRingBuffer * buf, guint64 * sample,
"last offset was %" G_GINT64_FORMAT, offset, pbuf->m_lastoffset);
towrite = out_samples * bps;
if ((pbuf->m_writable < towrite) || (offset != pbuf->m_lastoffset)) {
/* Only ever write segsize bytes at once. This will
* also limit the PA shm buffer to segsize
*/
if (towrite > buf->spec.segsize)
towrite = buf->spec.segsize;
if ((pbuf->m_writable < towrite) || (offset != pbuf->m_lastoffset)) {
/* if no room left or discontinuity in offset,
we need to flush data and get a new buffer */
@ -1319,26 +1325,19 @@ gst_pulseringbuffer_commit (GstRingBuffer * buf, guint64 * sample,
goto was_paused;
}
GST_LOG_OBJECT (psink, "requesting %u bytes of shared memory",
pbuf->m_writable);
if (pa_stream_begin_write (pbuf->stream, &pbuf->m_data,
&pbuf->m_writable) < 0) {
GST_LOG_OBJECT (psink, "pa_stream_begin_write() failed");
goto writable_size_failed;
}
GST_LOG_OBJECT (psink, "got %u bytes of shared memory", pbuf->m_writable);
/* make sure we only buffer up latency-time samples */
if (pbuf->m_writable > buf->spec.segsize) {
if (buf->spec.segsize < towrite) {
/* leave room for one frame */
pbuf->m_writable = towrite;
} else {
/* limit buffering to latency-time value
* note the amount of data passed to PA isn't going to be exactly
* latency-time, if there isn't enough room for towrite we flush and
* ask for a new buffer. Worst case the buffer passed will be
* segsize-towrite+1 bytes */
pbuf->m_writable = buf->spec.segsize;
}
/* limit buffering to latency-time value */
pbuf->m_writable = buf->spec.segsize;
GST_LOG_OBJECT (psink, "Limiting buffering to %" G_GSIZE_FORMAT,
pbuf->m_writable);