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gst/videomixer/videomixer.c: Fix memleak by unref'ing collectpads instance (when finalizing)
Original commit message from CVS: Patch by: Mark Nauwelaerts <manauw at skynet be> * gst/videomixer/videomixer.c: (gst_videomixer_set_master_geometry), (gst_videomixer_pad_sink_setcaps), (gst_videomixer_class_init), (gst_videomixer_collect_free), (gst_videomixer_reset), (gst_videomixer_init), (gst_videomixer_finalize), (gst_videomixer_request_new_pad), (gst_videomixer_release_pad), (gst_videomixer_collected), (gst_videomixer_change_state): Fix memleak by unref'ing collectpads instance (when finalizing) Implement releasing a request pad. Fixes #374479.
This commit is contained in:
Mark Nauwelaerts
Wim Taymans
parent
6093ab0332
commit
27d42165b7
2 changed files with 157 additions and 26 deletions
14
ChangeLog
14
ChangeLog
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@ -1,3 +1,17 @@
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2006-11-13 Wim Taymans <wim@fluendo.com>
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Patch by: Mark Nauwelaerts <manauw at skynet be>
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* gst/videomixer/videomixer.c:
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(gst_videomixer_set_master_geometry),
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(gst_videomixer_pad_sink_setcaps), (gst_videomixer_class_init),
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(gst_videomixer_collect_free), (gst_videomixer_reset),
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(gst_videomixer_init), (gst_videomixer_finalize),
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(gst_videomixer_request_new_pad), (gst_videomixer_release_pad),
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(gst_videomixer_collected), (gst_videomixer_change_state):
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Fix memleak by unref'ing collectpads instance (when finalizing)
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Implement releasing a request pad. Fixes #374479.
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2006-11-10 Tim-Philipp Müller <tim at centricular dot net>
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Patch by: Sergey Scobich <sergey.scobich at gmail com>
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@ -296,6 +296,7 @@ struct _GstVideoMixer
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gint in_width, in_height;
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gint out_width, out_height;
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gboolean setcaps;
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GstVideoMixerBackground background;
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@ -308,6 +309,48 @@ struct _GstVideoMixerClass
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GstElementClass parent_class;
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};
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static void
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gst_videomixer_set_master_geometry (GstVideoMixer * mix)
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{
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GSList *walk;
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gint width = 0, height = 0, fps_n = 0, fps_d = 0;
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GstVideoMixerPad *master = NULL;
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walk = mix->sinkpads;
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while (walk) {
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GstVideoMixerPad *mixpad = GST_VIDEO_MIXER_PAD (walk->data);
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walk = g_slist_next (walk);
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/* Biggest input geometry will be our output geometry */
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width = MAX (width, mixpad->in_width);
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height = MAX (height, mixpad->in_height);
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/* If mix framerate < mixpad framerate, using fractions */
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GST_DEBUG_OBJECT (mix, "comparing framerate %d/%d to mixpad's %d/%d",
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fps_n, fps_d, mixpad->fps_n, mixpad->fps_d);
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if ((!fps_n && !fps_d) ||
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((gint64) fps_n * mixpad->fps_d < (gint64) mixpad->fps_n * fps_d)) {
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fps_n = mixpad->fps_n;
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fps_d = mixpad->fps_d;
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GST_DEBUG_OBJECT (mixpad, "becomes the master pad");
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master = mixpad;
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}
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}
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/* set results */
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if (mix->master != master || mix->in_width != width
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|| mix->in_height != height || mix->fps_n != fps_n
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|| mix->fps_d != fps_d) {
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mix->setcaps = TRUE;
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mix->master = master;
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mix->in_width = width;
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mix->in_height = height;
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mix->fps_n = fps_n;
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mix->fps_d = fps_d;
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}
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}
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static gboolean
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gst_videomixer_pad_sink_setcaps (GstPad * pad, GstCaps * vscaps)
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{
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@ -343,21 +386,7 @@ gst_videomixer_pad_sink_setcaps (GstPad * pad, GstCaps * vscaps)
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mixpad->xpos = 0;
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mixpad->ypos = 0;
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/* Biggest input geometry will be our output geometry */
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mix->in_width = MAX (mix->in_width, mixpad->in_width);
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mix->in_height = MAX (mix->in_height, mixpad->in_height);
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/* If mix framerate < mixpad framerate, using fractions */
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GST_DEBUG_OBJECT (mix, "comparing mix framerate %d/%d to mixpad's %d/%d",
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mix->fps_n, mix->fps_d, mixpad->fps_n, mixpad->fps_d);
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if ((!mix->fps_n && !mix->fps_d) ||
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((gint64) mix->fps_n * mixpad->fps_d <
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(gint64) mixpad->fps_n * mix->fps_d)) {
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mix->fps_n = mixpad->fps_n;
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mix->fps_d = mixpad->fps_d;
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GST_DEBUG_OBJECT (mixpad, "becomes the master pad");
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mix->master = mixpad;
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}
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gst_videomixer_set_master_geometry (mix);
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ret = TRUE;
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@ -460,6 +489,7 @@ static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink_%d",
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static void gst_videomixer_base_init (gpointer g_class);
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static void gst_videomixer_class_init (GstVideoMixerClass * klass);
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static void gst_videomixer_init (GstVideoMixer * videomixer);
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static void gst_videomixer_finalize (GObject * object);
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static GstCaps *gst_videomixer_getcaps (GstPad * pad);
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@ -467,6 +497,7 @@ static GstFlowReturn gst_videomixer_collected (GstCollectPads * pads,
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GstVideoMixer * mix);
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static GstPad *gst_videomixer_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static void gst_videomixer_release_pad (GstElement * element, GstPad * pad);
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static void gst_videomixer_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_videomixer_get_property (GObject * object, guint prop_id,
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@ -527,6 +558,8 @@ gst_videomixer_class_init (GstVideoMixerClass * klass)
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_videomixer_finalize);
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gobject_class->get_property = gst_videomixer_get_property;
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gobject_class->set_property = gst_videomixer_set_property;
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@ -535,8 +568,47 @@ gst_videomixer_class_init (GstVideoMixerClass * klass)
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GST_TYPE_VIDEO_MIXER_BACKGROUND,
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DEFAULT_BACKGROUND, G_PARAM_READWRITE));
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gstelement_class->request_new_pad = gst_videomixer_request_new_pad;
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gstelement_class->change_state = gst_videomixer_change_state;
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gstelement_class->request_new_pad =
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GST_DEBUG_FUNCPTR (gst_videomixer_request_new_pad);
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gstelement_class->release_pad =
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GST_DEBUG_FUNCPTR (gst_videomixer_release_pad);
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_videomixer_change_state);
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}
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static void
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gst_videomixer_collect_free (GstCollectData * collect)
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{
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GstVideoMixerCollect *mixcol;
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mixcol = (GstVideoMixerCollect *) collect;
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if (mixcol->buffer) {
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gst_buffer_unref (mixcol->buffer);
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mixcol->buffer = NULL;
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}
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}
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static void
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gst_videomixer_reset (GstVideoMixer * mix)
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{
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GSList *walk;
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mix->in_width = 0;
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mix->in_height = 0;
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mix->out_width = 0;
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mix->out_height = 0;
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mix->fps_n = mix->fps_d = 0;
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mix->setcaps = FALSE;
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/* clean up collect data */
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walk = mix->collect->data;
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while (walk) {
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GstCollectData *data = (GstCollectData *) walk->data;
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gst_videomixer_collect_free (data);
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walk = g_slist_next (walk);
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}
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}
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static void
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@ -547,20 +619,30 @@ gst_videomixer_init (GstVideoMixer * mix)
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mix->srcpad =
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gst_pad_new_from_template (gst_element_class_get_pad_template (klass,
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"src"), "src");
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gst_pad_set_getcaps_function (GST_PAD (mix->srcpad), gst_videomixer_getcaps);
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gst_pad_set_getcaps_function (GST_PAD (mix->srcpad),
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GST_DEBUG_FUNCPTR (gst_videomixer_getcaps));
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gst_element_add_pad (GST_ELEMENT (mix), mix->srcpad);
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mix->collect = gst_collect_pads_new ();
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mix->background = DEFAULT_BACKGROUND;
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mix->in_width = 0;
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mix->in_height = 0;
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mix->out_width = 0;
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mix->out_height = 0;
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mix->fps_n = mix->fps_d = 0;
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gst_collect_pads_set_function (mix->collect,
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(GstCollectPadsFunction) GST_DEBUG_FUNCPTR (gst_videomixer_collected),
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mix);
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/* initialize variables */
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gst_videomixer_reset (mix);
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}
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static void
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gst_videomixer_finalize (GObject * object)
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{
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GstVideoMixer *mix = GST_VIDEO_MIXER (object);
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gst_object_unref (mix->collect);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static GstCaps *
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@ -649,12 +731,44 @@ gst_videomixer_request_new_pad (GstElement * element,
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return NULL;
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}
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/* dd the pad to the element */
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/* add the pad to the element */
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gst_element_add_pad (element, GST_PAD (mixpad));
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return GST_PAD (mixpad);
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}
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static void
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gst_videomixer_release_pad (GstElement * element, GstPad * pad)
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{
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GstVideoMixer *mix = NULL;
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GSList *walk = NULL;
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mix = GST_VIDEO_MIXER (element);
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walk = mix->collect->data;
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while (walk) {
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GstCollectData *data = (GstCollectData *) walk->data;
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GstVideoMixerCollect *mixcol = (GstVideoMixerCollect *) data;
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GstVideoMixerPad *mixpad = mixcol->mixpad;
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walk = g_slist_next (walk);
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if (mixpad == GST_VIDEO_MIXER_PAD (pad)) {
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/* found it, remove from all sorts of lists */
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mix->sinkpads = g_slist_remove (mix->sinkpads, pad);
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gst_videomixer_collect_free (data);
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gst_collect_pads_remove_pad (mix->collect, pad);
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gst_element_remove_pad (element, pad);
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/* determine possibly new geometry and master */
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gst_videomixer_set_master_geometry (mix);
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return;
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}
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}
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g_warning ("Unknown pad %s", GST_PAD_NAME (pad));
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}
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#define BLEND_NORMAL(Y1,U1,V1,Y2,U2,V2,alpha,Y,U,V) \
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Y = ((Y1*(255-alpha))+(Y2*alpha))>>8; \
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U = ((U1*(255-alpha))+(U2*alpha))>>8; \
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@ -1141,7 +1255,8 @@ gst_videomixer_collected (GstCollectPads * pads, GstVideoMixer * mix)
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outsize = ROUND_UP_2 (mix->in_width) * ROUND_UP_2 (mix->in_height) * 4;
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/* If geometry has changed we need to set new caps on the buffer */
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if (mix->in_width != mix->out_width || mix->in_height != mix->out_height) {
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if (mix->in_width != mix->out_width || mix->in_height != mix->out_height
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|| mix->setcaps) {
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GstCaps *newcaps = NULL;
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newcaps = gst_caps_make_writable
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@ -1153,6 +1268,7 @@ gst_videomixer_collected (GstCollectPads * pads, GstVideoMixer * mix)
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mix->out_width = mix->in_width;
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mix->out_height = mix->in_height;
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mix->setcaps = FALSE;
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ret =
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gst_pad_alloc_buffer_and_set_caps (mix->srcpad, GST_BUFFER_OFFSET_NONE,
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@ -1237,6 +1353,7 @@ gst_videomixer_change_state (GstElement * element, GstStateChange transition)
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switch (transition) {
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case GST_STATE_CHANGE_READY_TO_PAUSED:
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gst_videomixer_reset (mix);
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GST_LOG ("starting collectpads");
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gst_collect_pads_start (mix->collect);
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break;
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