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baseaudiosink: drop samples that are too late

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... rather than having all of them rendered at 0 or subsequently aligned,
likely inevitably leading to repeated resyncing.
This commit is contained in:
Mark Nauwelaerts 2011-06-01 10:21:39 +02:00
parent 7ca9c4ec40
commit 5d0f279fea
1 changed files with 11 additions and 0 deletions
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11
gst-libs/gst/audio/gstbaseaudiosink.c
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@ -1614,6 +1614,12 @@ gst_base_audio_sink_render (GstBaseSink * bsink, GstBuffer * buf)
render_stop = 0; render_stop = 0;
} }
/* in some clock slaving cases, all late samples end up at 0 first,
* and subsequent ones align with that until threshold exceeded,
* and then sync back to 0 and so on, so avoid that altogether */
if (G_UNLIKELY (render_start == 0 && render_stop == 0))
goto too_late;
/* and bring the time to the rate corrected offset in the buffer */ /* and bring the time to the rate corrected offset in the buffer */
render_start = gst_util_uint64_scale_int (render_start, render_start = gst_util_uint64_scale_int (render_start,
ringbuf->spec.rate, GST_SECOND); ringbuf->spec.rate, GST_SECOND);
@ -1738,6 +1744,11 @@ out_of_segment:
ret = GST_FLOW_OK; ret = GST_FLOW_OK;
goto done; goto done;
} }
too_late:
{
GST_DEBUG_OBJECT (sink, "dropping late sample");
return GST_FLOW_OK;
}
/* ERRORS */ /* ERRORS */
payload_failed: payload_failed:
{ {