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gst/playback/gstdecodebin.c: Better use of the queues. Start with a small size queue and only increase the size of th...

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Original commit message from CVS:
* gst/playback/gstdecodebin.c: (gst_decode_bin_init),
(try_to_link_1), (queue_filled_cb):
Better use of the queues. Start with a small size queue and only increase
the size of the queues when the other queues are empty.
This commit is contained in:
Edward Hervey 2005-11-28 19:54:56 +00:00
parent 9c8815566e
commit 4ab5321400
2 changed files with 68 additions and 4 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2005-11-28 Edward Hervey <edward@fluendo.com>
* gst/playback/gstdecodebin.c: (gst_decode_bin_init),
(try_to_link_1), (queue_filled_cb):
Better use of the queues. Start with a small size queue and only increase
the size of the queues when the other queues are empty.
2005-11-28 Thomas Vander Stichele <thomas at apestaart dot org>
* gst-libs/gst/video/Makefile.am:

65
gst/playback/gstdecodebin.c
View File

@ -60,6 +60,8 @@ struct _GstDecodeBin
GList *dynamics; /* list of dynamic connections */
GList *queues; /* list of demuxer-decoder queues */
GList *factories; /* factories we can use for selecting elements */
gint numpads;
gint numwaiting;
@ -123,6 +125,8 @@ static void unlinked (GstPad * pad, GstPad * peerpad,
static void new_pad (GstElement * element, GstPad * pad, GstDynamic * dynamic);
static void no_more_pads (GstElement * element, GstDynamic * dynamic);
static void queue_filled_cb (GstElement * queue, GstDecodeBin * decode_bin);
static GstElementClass *parent_class;
static guint gst_decode_bin_signals[LAST_SIGNAL] = { 0 };
@ -329,6 +333,7 @@ gst_decode_bin_init (GstDecodeBin * decode_bin)
}
decode_bin->dynamics = NULL;
decode_bin->queues = NULL;
}
static void dynamic_free (GstDynamic * dyn);
@ -664,10 +669,9 @@ try_to_link_1 (GstDecodeBin * decode_bin, GstElement * srcelement, GstPad * pad,
GST_OBJECT_NAME (srcelement));
queue = gst_element_factory_make ("queue", NULL);
g_object_set (G_OBJECT (queue), (const gchar *) "max-size-buffers", 0,
NULL);
g_object_set (G_OBJECT (queue), (const gchar *) "max-size-time", 0LL,
NULL);
g_object_set (G_OBJECT (queue), "max-size-buffers", 0, NULL);
g_object_set (G_OBJECT (queue), "max-size-time", 0LL, NULL);
g_object_set (G_OBJECT (queue), "max-size-bytes", 8192, NULL);
gst_bin_add (GST_BIN (decode_bin), queue);
gst_element_set_state (queue, GST_STATE_READY);
queuesinkpad = gst_element_get_pad (queue, "sink");
@ -700,6 +704,12 @@ try_to_link_1 (GstDecodeBin * decode_bin, GstElement * srcelement, GstPad * pad,
GST_DEBUG_OBJECT (decode_bin, "linked on pad %s:%s",
GST_DEBUG_PAD_NAME (usedsrcpad));
if (isdemux) {
decode_bin->queues = g_list_append (decode_bin->queues, queue);
g_signal_connect (G_OBJECT (queue),
"overrun", G_CALLBACK (queue_filled_cb), decode_bin);
}
/* The link worked, now figure out what it was that we connected */
/* make sure we catch unlink signals */
@ -852,6 +862,53 @@ remove_element_chain (GstDecodeBin * decode_bin, GstPad * pad)
gst_bin_remove (GST_BIN (decode_bin), elem);
}
/* Make sure we don't have a full queue and empty queue situation */
static void
queue_filled_cb (GstElement * queue, GstDecodeBin * decode_bin)
{
GList *tmp;
gboolean increase = FALSE;
guint bytes;
g_object_get (G_OBJECT (queue), "current-level-bytes", &bytes, NULL);
GST_DEBUG_OBJECT (decode_bin, "One of the queues is full at %d bytes", bytes);
if (bytes > (20 * 1024 * 1024)) {
GST_WARNING_OBJECT (decode_bin,
"Queue is bigger than 20Mbytes, something else is going wrong");
return;
}
for (tmp = decode_bin->queues; tmp; tmp = g_list_next (tmp)) {
GstElement *aqueue = GST_ELEMENT (tmp->data);
guint levelbytes = -1;
if (aqueue != queue) {
g_object_get (G_OBJECT (aqueue),
"current-level-bytes", &levelbytes, NULL);
if (levelbytes == 0) {
increase = TRUE;
}
}
}
if (increase) {
/*
* Increase the queue size by 1Mbyte if it is over 1Mb, else double its current limit
*/
if (bytes > 1024 * 1024)
bytes += 1024 * 1024;
else
bytes *= 2;
GST_DEBUG_OBJECT (decode_bin,
"One of the other queues is empty, increasing queue byte limit to %d",
bytes);
g_object_set (G_OBJECT (queue), "max-size-bytes", bytes, NULL);
} else
GST_DEBUG_OBJECT (decode_bin,
"Queue is full but other queues are not empty, not doing anything");
}
/* This function will be called when a dynamic pad is created on an element.
* We try to continue autoplugging on this new pad. */
static void