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inter: Clean up surfaces after the last user is gone

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This commit is contained in:
Sebastian Dröge 2014-10-22 18:13:36 +02:00
parent f3ce87d1bd
commit 211a39e55e
2 changed files with 26 additions and 2 deletions
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26
gst/inter/gstintersurface.c
View file

@ -35,16 +35,17 @@ gst_inter_surface_get (const char *name)
GstInterSurface *surface;
g_mutex_lock (&mutex);
for (g = list; g; g = g_list_next (g)) {
surface = (GstInterSurface *) g->data;
surface = g->data;
if (strcmp (name, surface->name) == 0) {
surface->ref_count++;
g_mutex_unlock (&mutex);
return surface;
}
}
surface = g_malloc0 (sizeof (GstInterSurface));
surface->ref_count = 1;
surface->name = g_strdup (name);
g_mutex_init (&surface->mutex);
surface->audio_adapter = gst_adapter_new ();
@ -58,5 +59,26 @@ gst_inter_surface_get (const char *name)
void
gst_inter_surface_unref (GstInterSurface * surface)
{
/* Mutex needed here, otherwise refcount might become 0
* and someone else requests the same surface again before
* we remove it from the list */
g_mutex_lock (&mutex);
if ((--surface->ref_count) == 0) {
GList *g;
for (g = list; g; g = g_list_next (g)) {
GstInterSurface *tmp = g->data;
if (strcmp (tmp->name, surface->name) == 0) {
list = g_list_delete_link (list, g);
break;
}
}
g_mutex_clear (&surface->mutex);
gst_buffer_replace (&surface->video_buffer, NULL);
gst_buffer_replace (&surface->sub_buffer, NULL);
gst_object_unref (surface->audio_adapter);
g_free (surface);
}
g_mutex_unlock (&mutex);
}

2
gst/inter/gstintersurface.h
View file

@ -30,6 +30,8 @@ typedef struct _GstInterSurface GstInterSurface;
struct _GstInterSurface
{
GMutex mutex;
gint ref_count;
char *name;
/* video */