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videobox: Reconfigure basetransform if something changes again

Browse source 
For this invent a new lock and don't abuse the basetransform lock,
otherwise we'll end up in deadlocks.
This commit is contained in:
Sebastian Dröge 2009-08-14 13:26:36 +02:00
parent 041ddd6f8f
commit 6976f3d39a
1 changed files with 29 additions and 9 deletions
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38
gst/videobox/gstvideobox.c
View file

@ -76,6 +76,8 @@ struct _GstVideoBox
{
GstBaseTransform element;
/* Guarding everything below */
GMutex *mutex;
/* caps */
guint32 in_fourcc;
gint in_width, in_height;
@ -218,6 +220,19 @@ gst_video_box_base_init (gpointer g_class)
gst_static_pad_template_get (&gst_video_box_src_template));
}
static void
gst_video_box_finalize (GObject * object)
{
GstVideoBox *video_box = GST_VIDEO_BOX (object);
if (video_box->mutex) {
g_mutex_free (video_box->mutex);
video_box->mutex = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_video_box_class_init (GstVideoBoxClass * klass)
{
@ -229,6 +244,7 @@ gst_video_box_class_init (GstVideoBoxClass * klass)
gobject_class->set_property = gst_video_box_set_property;
gobject_class->get_property = gst_video_box_get_property;
gobject_class->finalize = gst_video_box_finalize;
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_FILL_TYPE,
g_param_spec_enum ("fill", "Fill", "How to fill the borders",
@ -286,6 +302,8 @@ gst_video_box_init (GstVideoBox * video_box, GstVideoBoxClass * g_class)
video_box->alpha = DEFAULT_ALPHA;
video_box->border_alpha = DEFAULT_BORDER_ALPHA;
video_box->autocrop = FALSE;
video_box->mutex = g_mutex_new ();
}
static void
@ -294,7 +312,7 @@ gst_video_box_set_property (GObject * object, guint prop_id,
{
GstVideoBox *video_box = GST_VIDEO_BOX (object);
GST_BASE_TRANSFORM_LOCK (GST_BASE_TRANSFORM_CAST (video_box));
g_mutex_lock (video_box->mutex);
switch (prop_id) {
case PROP_LEFT:
video_box->box_left = g_value_get_int (value);
@ -353,11 +371,11 @@ gst_video_box_set_property (GObject * object, guint prop_id,
break;
}
video_box_recalc_transform (video_box);
/*
GST_DEBUG_OBJECT (video_box, "Calling reconfigure");
gst_base_transform_reconfigure (GST_BASE_TRANSFORM (video_box));
*/
GST_BASE_TRANSFORM_UNLOCK (GST_BASE_TRANSFORM_CAST (video_box));
GST_DEBUG_OBJECT (video_box, "Calling reconfigure");
gst_base_transform_reconfigure (GST_BASE_TRANSFORM (video_box));
g_mutex_unlock (video_box->mutex);
}
static void
@ -366,8 +384,7 @@ gst_video_box_autocrop (GstVideoBox * video_box)
gint crop_w = (video_box->in_width - video_box->out_width) / 2;
gint crop_h = (video_box->in_height - video_box->out_height) / 2;
GST_BASE_TRANSFORM_LOCK (GST_BASE_TRANSFORM_CAST (video_box));
g_mutex_lock (video_box->mutex);
video_box->box_left = crop_w;
if (video_box->box_left < 0) {
video_box->border_left = -video_box->box_left;
@ -404,7 +421,7 @@ gst_video_box_autocrop (GstVideoBox * video_box)
video_box->crop_bottom = video_box->box_bottom;
}
GST_BASE_TRANSFORM_UNLOCK (GST_BASE_TRANSFORM_CAST (video_box));
g_mutex_unlock (video_box->mutex);
}
static void
@ -1239,6 +1256,7 @@ gst_video_box_transform (GstBaseTransform * trans, GstBuffer * in,
indata = GST_BUFFER_DATA (in);
outdata = GST_BUFFER_DATA (out);
g_mutex_lock (video_box->mutex);
switch (video_box->in_fourcc) {
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
switch (video_box->out_fourcc) {
@ -1267,11 +1285,13 @@ gst_video_box_transform (GstBaseTransform * trans, GstBuffer * in,
default:
goto invalid_format;
}
g_mutex_unlock (video_box->mutex);
return GST_FLOW_OK;
/* ERRORS */
invalid_format:
{
g_mutex_unlock (video_box->mutex);
return GST_FLOW_ERROR;
}
}