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deinterlace: Clip buffers to the current segment if possible

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This commit is contained in:
Sebastian Dröge 2009-06-10 14:55:18 +02:00
parent 4710a91cbf
commit 101123a75d
1 changed files with 41 additions and 2 deletions
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43
gst/deinterlace/gstdeinterlace.c
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@ -469,6 +469,33 @@ gst_deinterlace_set_method (GstDeinterlace * self, GstDeinterlaceMethods method)
gst_child_proxy_child_added (GST_OBJECT (self), GST_OBJECT (self->method));
}
static gboolean
gst_deinterlace_clip_buffer (GstDeinterlace * self, GstBuffer * buffer)
{
gboolean ret = TRUE;
GstClockTime start, stop;
gint64 cstart, cstop;
if (G_UNLIKELY (self->segment.format != GST_FORMAT_TIME))
goto beach;
if (G_UNLIKELY (!GST_BUFFER_TIMESTAMP_IS_VALID (buffer)))
goto beach;
start = GST_BUFFER_TIMESTAMP (buffer);
stop = start + GST_BUFFER_DURATION (buffer);
if (!(ret = gst_segment_clip (&self->segment, GST_FORMAT_TIME,
start, stop, &cstart, &cstop)))
goto beach;
GST_BUFFER_TIMESTAMP (buffer) = cstart;
if (GST_CLOCK_TIME_IS_VALID (cstop))
GST_BUFFER_DURATION (buffer) = cstop - cstart;
beach:
return ret;
}
static void
gst_deinterlace_base_init (gpointer klass)
{
@ -1089,7 +1116,13 @@ gst_deinterlace_chain (GstPad * pad, GstBuffer * buf)
gst_buffer_unref (gst_deinterlace_pop_history (self));
ret = gst_pad_push (self->srcpad, outbuf);
if (gst_deinterlace_clip_buffer (self, outbuf)) {
ret = gst_pad_push (self->srcpad, outbuf);
} else {
ret = GST_FLOW_OK;
gst_buffer_unref (outbuf);
}
outbuf = NULL;
if (ret != GST_FLOW_OK)
return ret;
@ -1144,7 +1177,13 @@ gst_deinterlace_chain (GstPad * pad, GstBuffer * buf)
gst_buffer_unref (gst_deinterlace_pop_history (self));
ret = gst_pad_push (self->srcpad, outbuf);
if (gst_deinterlace_clip_buffer (self, outbuf)) {
ret = gst_pad_push (self->srcpad, outbuf);
} else {
ret = GST_FLOW_OK;
gst_buffer_unref (outbuf);
}
outbuf = NULL;
if (ret != GST_FLOW_OK)
return ret;