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playbin: Use GSequence instead of GList to store the GstAVElement list.

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The GstAVElement list might be big. Use GSequence to optimize it.
This commit is contained in:
Sreerenj Balachandran 2013-05-02 00:01:17 +03:00 committed by Sebastian Dröge
parent a8d1b45491
commit 52c5115ff0
1 changed files with 48 additions and 45 deletions
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93
gst/playback/gstplaybin2.c
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@ -285,8 +285,8 @@ enum
PLAYBIN_STREAM_LAST
};
static void avelements_list_free (GList * list);
static GList *avelements_list_create (GstPlayBin * playbin,
static void avelements_free (gpointer data);
static GSequence *avelements_create (GstPlayBin * playbin,
gboolean isaudioelement);
/* The GstAudioVideoElement structure holding the audio/video decoder
@ -441,8 +441,8 @@ struct _GstPlayBin
GstElement *video_sink; /* configured video sink, or NULL */
GstElement *text_sink; /* configured text sink, or NULL */
GList *aelements; /* a list of GstAVElements for audio stream */
GList *velements; /* a list of GstAVElements for video stream */
GSequence *aelements; /* a list of GstAVElements for audio stream */
GSequence *velements; /* a list of GstAVElements for video stream */
struct
{
@ -1368,15 +1368,14 @@ gst_play_bin_update_elements_list (GstPlayBin * playbin)
if (!playbin->aelements || playbin->elements_cookie != cookie) {
if (playbin->aelements)
avelements_list_free (playbin->aelements);
playbin->aelements = avelements_list_create (playbin, TRUE);
g_sequence_free (playbin->aelements);
playbin->aelements = avelements_create (playbin, TRUE);
}
if (!playbin->velements || playbin->elements_cookie != cookie) {
if (playbin->velements)
avelements_list_free (playbin->velements);
playbin->velements = avelements_list_create (playbin, FALSE);
g_sequence_free (playbin->velements);
playbin->velements = avelements_create (playbin, FALSE);
}
playbin->elements_cookie = cookie;
@ -1454,10 +1453,10 @@ gst_play_bin_finalize (GObject * object)
gst_plugin_feature_list_free (playbin->elements);
if (playbin->aelements)
avelements_list_free (playbin->aelements);
g_sequence_free (playbin->aelements);
if (playbin->velements)
avelements_list_free (playbin->velements);
g_sequence_free (playbin->velements);
g_rec_mutex_clear (&playbin->lock);
g_mutex_clear (&playbin->dyn_lock);
@ -3274,24 +3273,19 @@ _factory_can_sink_caps (GstElementFactory * factory, GstCaps * caps)
}
static void
avelements_list_free (GList * list)
avelements_free (gpointer avelement)
{
GList *l;
GstAVElement *elm;
GstAVElement *elm = (GstAVElement *) avelement;
for (l = list; l; l = l->next) {
elm = (GstAVElement *) l->data;
if (elm->dec)
gst_object_unref (elm->dec);
if (elm->sink)
gst_object_unref (elm->sink);
g_slice_free (GstAVElement, elm);
}
g_list_free (list);
if (elm->dec)
gst_object_unref (elm->dec);
if (elm->sink)
gst_object_unref (elm->sink);
g_slice_free (GstAVElement, elm);
}
static gint
avelement_compare (gconstpointer p1, gconstpointer p2)
avelement_compare (gconstpointer p1, gconstpointer p2, gpointer user_data)
{
GstAVElement *v1, *v2;
GstPluginFeature *fd1, *fd2, *fs1, *fs2;
@ -3404,12 +3398,12 @@ get_n_common_capsfeatures (GstElementFactory * dec, GstElementFactory * sink)
return n_common_cf;
}
static GList *
avelements_list_create (GstPlayBin * playbin, gboolean isaudioelement)
static GSequence *
avelements_create (GstPlayBin * playbin, gboolean isaudioelement)
{
GstElementFactory *d_factory, *s_factory;
GList *dec_list, *sink_list, *dl, *sl;
GList *ave_list = NULL;
GSequence *ave_seq = NULL;
GstAVElement *ave;
guint n_common_cf = 0;
@ -3439,6 +3433,8 @@ avelements_list_create (GstPlayBin * playbin, gboolean isaudioelement)
dl = dec_list;
sl = sink_list;
ave_seq = g_sequence_new ((GDestroyNotify) avelements_free);
for (; dl; dl = dl->next) {
d_factory = (GstElementFactory *) dl->data;
for (; sl; sl = sl->next) {
@ -3452,36 +3448,36 @@ avelements_list_create (GstPlayBin * playbin, gboolean isaudioelement)
ave->dec = gst_object_ref (d_factory);
ave->sink = gst_object_ref (s_factory);
ave->n_comm_cf = n_common_cf;
ave_list = g_list_prepend (ave_list, ave);
g_sequence_append (ave_seq, ave);
}
sl = sink_list;
}
g_sequence_sort (ave_seq, (GCompareDataFunc) avelement_compare, NULL);
gst_plugin_feature_list_free (dec_list);
gst_plugin_feature_list_free (sink_list);
ave_list = g_list_sort (ave_list, (GCompareFunc) avelement_compare);
return ave_list;
return ave_seq;
}
static GList *
create_decoders_list (GList * factory_list, GList * avelements)
create_decoders_list (GList * factory_list, GSequence * avelements)
{
GList *dec_list = NULL, *tmp;
GSequenceIter *seq_iter = NULL;
GstElementFactory *factory;
GstAVElement *ave;
guint dl_length, dl_count = 0;
if (!factory_list || !avelements)
return NULL;
g_return_val_if_fail (factory_list != NULL, NULL);
g_return_val_if_fail (avelements != NULL, NULL);
dl_length = g_list_length (factory_list);
tmp = factory_list;
for (; tmp; tmp = tmp->next) {
factory = (GstElementFactory *) tmp->data;
/* if there are parsers, add them first */
/* if there are parsers or sink elements, add them first */
if (!gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_DECODER)) {
dec_list = g_list_prepend (dec_list, factory);
@ -3489,8 +3485,9 @@ create_decoders_list (GList * factory_list, GList * avelements)
}
}
for (; avelements; avelements = avelements->next) {
ave = (GstAVElement *) avelements->data;
seq_iter = g_sequence_get_begin_iter (avelements);
while (!g_sequence_iter_is_end (seq_iter)) {
ave = (GstAVElement *) g_sequence_get (seq_iter);
if (g_list_find (factory_list, ave->dec)
&& !g_list_find (dec_list, ave->dec)) {
@ -3500,6 +3497,7 @@ create_decoders_list (GList * factory_list, GList * avelements)
if (++dl_count == dl_length)
break;
}
seq_iter = g_sequence_iter_next (seq_iter);
}
dec_list = g_list_reverse (dec_list);
@ -3563,7 +3561,7 @@ autoplug_factories_cb (GstElement * decodebin, GstPad * pad,
}
if (isaudiodeclist || isvideodeclist) {
GList **ave_list;
GSequence **ave_list;
if (isaudiodeclist)
ave_list = &playbin->aelements;
else
@ -3778,7 +3776,8 @@ autoplug_select_cb (GstElement * decodebin, GstPad * pad,
GstPlaySinkType type;
GstElement **sinkp;
GstAVElement *ave = NULL;
GList *ave_list = NULL, *tmp = NULL;
GSequence *ave_seq = NULL;
GSequenceIter *seq_iter;
playbin = group->playbin;
@ -3805,22 +3804,25 @@ autoplug_select_cb (GstElement * decodebin, GstPad * pad,
g_mutex_lock (&playbin->elements_lock);
if (isaudiodec) {
ave_list = playbin->aelements;
ave_seq = playbin->aelements;
sinkp = &group->audio_sink;
} else {
ave_list = playbin->velements;
ave_seq = playbin->velements;
sinkp = &group->video_sink;
}
/* if it is a decoder and we don't have a fixed sink, then find out
* the matching audio/video sink from GstAVElements list */
for (tmp = ave_list; tmp; tmp = tmp->next) {
ave = (GstAVElement *) tmp->data;
if (ave->dec != factory)
seq_iter = g_sequence_get_begin_iter (ave_seq);
while (!g_sequence_iter_is_end (seq_iter)) {
ave = (GstAVElement *) g_sequence_get (seq_iter);
if (ave->dec != factory) {
seq_iter = g_sequence_iter_next (seq_iter);
continue;
}
if (((isaudiodec && !group->audio_sink) ||
(isvideodec && !group->video_sink)) && ave_list) {
(isvideodec && !group->video_sink))) {
GST_SOURCE_GROUP_LOCK (group);
if (ave && ave->sink) {
@ -3896,6 +3898,7 @@ autoplug_select_cb (GstElement * decodebin, GstPad * pad,
return GST_AUTOPLUG_SELECT_SKIP;
}
}
seq_iter = g_sequence_iter_next (seq_iter);
}
g_mutex_unlock (&playbin->elements_lock);
return GST_AUTOPLUG_SELECT_TRY;