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glfilter: recreate the fbo on caps changes

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The width/height may change which requires recreating the depth buffer.
This commit is contained in:
Matthew Waters 2016-01-15 00:04:20 +11:00 committed by Tim-Philipp Müller
parent cb9463d1a2
commit b56d9bd57b
1 changed files with 50 additions and 35 deletions
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85
gst-libs/gst/gl/gstglfilter.c
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@ -70,7 +70,8 @@ enum
#define gst_gl_filter_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstGLFilter, gst_gl_filter, GST_TYPE_GL_BASE_FILTER,
GST_DEBUG_CATEGORY_INIT (gst_gl_filter_debug, "glfilter", 0,
"glfilter element"););
"glfilter element");
);
static void gst_gl_filter_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
@ -97,6 +98,8 @@ static gboolean gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
GstCaps * outcaps);
static gboolean gst_gl_filter_gl_start (GstGLBaseFilter * filter);
static void gst_gl_filter_gl_stop (GstGLBaseFilter * filter);
static gboolean gst_gl_filter_gl_set_caps (GstGLBaseFilter * bt,
GstCaps * incaps, GstCaps * outcaps);
static void
gst_gl_filter_class_init (GstGLFilterClass * klass)
@ -124,6 +127,7 @@ gst_gl_filter_class_init (GstGLFilterClass * klass)
GST_GL_BASE_FILTER_CLASS (klass)->gl_start = gst_gl_filter_gl_start;
GST_GL_BASE_FILTER_CLASS (klass)->gl_stop = gst_gl_filter_gl_stop;
GST_GL_BASE_FILTER_CLASS (klass)->gl_set_caps = gst_gl_filter_gl_set_caps;
klass->transform_internal_caps = default_transform_internal_caps;
@ -183,44 +187,11 @@ gst_gl_filter_gl_start (GstGLBaseFilter * base_filter)
{
GstGLFilter *filter = GST_GL_FILTER (base_filter);
GstGLFilterClass *filter_class = GST_GL_FILTER_GET_CLASS (filter);
GstGLContext *context = GST_GL_BASE_FILTER (filter)->context;
gint out_width, out_height;
out_width = GST_VIDEO_INFO_WIDTH (&filter->out_info);
out_height = GST_VIDEO_INFO_HEIGHT (&filter->out_info);
if (filter->fbo) {
gst_gl_context_del_fbo (context, filter->fbo, filter->depthbuffer);
filter->fbo = 0;
filter->depthbuffer = 0;
}
//blocking call, generate a FBO
if (!gst_gl_context_gen_fbo (context, out_width, out_height,
&filter->fbo, &filter->depthbuffer))
goto context_error;
if (filter_class->display_init_cb)
filter_class->display_init_cb (filter);
if (filter_class->init_fbo) {
if (!filter_class->init_fbo (filter))
goto error;
}
return TRUE;
context_error:
{
GST_ELEMENT_ERROR (filter, RESOURCE, NOT_FOUND, ("Could not generate FBO"),
(NULL));
return FALSE;
}
error:
{
GST_ELEMENT_ERROR (filter, LIBRARY, INIT,
("Subclass failed to initialize."), (NULL));
return FALSE;
}
}
static void
@ -683,6 +654,49 @@ gst_gl_filter_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
return TRUE;
}
static gboolean
gst_gl_filter_gl_set_caps (GstGLBaseFilter * bt, GstCaps * incaps,
GstCaps * outcaps)
{
GstGLFilter *filter = GST_GL_FILTER (bt);
GstGLFilterClass *filter_class = GST_GL_FILTER_GET_CLASS (filter);
GstGLContext *context = GST_GL_BASE_FILTER (filter)->context;
gint out_width, out_height;
out_width = GST_VIDEO_INFO_WIDTH (&filter->out_info);
out_height = GST_VIDEO_INFO_HEIGHT (&filter->out_info);
if (filter->fbo) {
gst_gl_context_del_fbo (context, filter->fbo, filter->depthbuffer);
filter->fbo = 0;
filter->depthbuffer = 0;
}
//blocking call, generate a FBO
if (!gst_gl_context_gen_fbo (context, out_width, out_height,
&filter->fbo, &filter->depthbuffer))
goto context_error;
if (filter_class->init_fbo) {
if (!filter_class->init_fbo (filter))
goto error;
}
return TRUE;
context_error:
{
GST_ELEMENT_ERROR (filter, RESOURCE, NOT_FOUND, ("Could not generate FBO"),
(NULL));
return FALSE;
}
error:
{
GST_ELEMENT_ERROR (filter, LIBRARY, INIT,
("Subclass failed to initialize."), (NULL));
return FALSE;
}
}
static gboolean
gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
GstCaps * outcaps)
@ -710,7 +724,8 @@ gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
GST_VIDEO_INFO_WIDTH (&filter->out_info),
GST_VIDEO_INFO_HEIGHT (&filter->out_info), incaps, outcaps);
return TRUE;
return GST_BASE_TRANSFORM_CLASS (parent_class)->set_caps (bt, incaps,
outcaps);
/* ERRORS */
wrong_caps: