/*
* GStreamer
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
+ * Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
static GstStaticPadTemplate gst_gl_filter_src_pad_template =
-GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
+ GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
);
static GstStaticPadTemplate gst_gl_filter_sink_pad_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
+ GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
);
-#define DEBUG_INIT(bla) \
+#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_gl_filter_debug, "glfilter", 0, "glfilter element");
GST_BOILERPLATE_FULL (GstGLFilter, gst_gl_filter, GstBaseTransform,
- GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
+ GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
static void gst_gl_filter_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec);
+ const GValue * value, GParamSpec * pspec);
static void gst_gl_filter_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec);
+ GValue * value, GParamSpec * pspec);
static GstCaps* gst_gl_filter_transform_caps (GstBaseTransform* bt,
- GstPadDirection direction, GstCaps* caps);
+ GstPadDirection direction, GstCaps* caps);
static void gst_gl_filter_reset (GstGLFilter * filter);
static gboolean gst_gl_filter_start (GstBaseTransform * bt);
static gboolean gst_gl_filter_stop (GstBaseTransform * bt);
static gboolean gst_gl_filter_get_unit_size (GstBaseTransform * trans,
- GstCaps * caps, guint * size);
+ GstCaps * caps, guint * size);
static GstFlowReturn gst_gl_filter_transform (GstBaseTransform * bt,
- GstBuffer * inbuf, GstBuffer * outbuf);
+ GstBuffer * inbuf, GstBuffer * outbuf);
static GstFlowReturn gst_gl_filter_prepare_output_buffer (GstBaseTransform *
- trans, GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf);
+ trans, GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf);
static gboolean gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
- GstCaps * outcaps);
+ GstCaps * outcaps);
static gboolean gst_gl_filter_do_transform (GstGLFilter * filter,
- GstGLBuffer * inbuf, GstGLBuffer * outbuf);
+ GstGLBuffer * inbuf, GstGLBuffer * outbuf);
+/* GstGLDisplayThreadFunc */
+static void gst_gl_filter_start_gl (GstGLDisplay *display, gpointer data);
+static void gst_gl_filter_stop_gl (GstGLDisplay *display, gpointer data);
static void
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_gl_filter_src_pad_template));
+ gst_static_pad_template_get (&gst_gl_filter_src_pad_template));
gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_gl_filter_sink_pad_template));
+ gst_static_pad_template_get (&gst_gl_filter_sink_pad_template));
}
static void
gst_gl_filter_class_init (GstGLFilterClass * klass)
{
- GObjectClass *gobject_class;
-
- gobject_class = (GObjectClass *) klass;
- gobject_class->set_property = gst_gl_filter_set_property;
- gobject_class->get_property = gst_gl_filter_get_property;
-
- GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
- gst_gl_filter_transform_caps;
- GST_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_filter_transform;
- GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_filter_start;
- GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_filter_stop;
- GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_filter_set_caps;
- GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size = gst_gl_filter_get_unit_size;
- GST_BASE_TRANSFORM_CLASS (klass)->prepare_output_buffer =
- gst_gl_filter_prepare_output_buffer;
-
- klass->set_caps = NULL;
- klass->filter = NULL;
- klass->onInitFBO = NULL;
- klass->onReset = NULL;
+ GObjectClass *gobject_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gobject_class->set_property = gst_gl_filter_set_property;
+ gobject_class->get_property = gst_gl_filter_get_property;
+
+ GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
+ gst_gl_filter_transform_caps;
+ GST_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_filter_transform;
+ GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_filter_start;
+ GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_filter_stop;
+ GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_filter_set_caps;
+ GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size = gst_gl_filter_get_unit_size;
+ GST_BASE_TRANSFORM_CLASS (klass)->prepare_output_buffer =
+ gst_gl_filter_prepare_output_buffer;
+
+ klass->set_caps = NULL;
+ klass->filter = NULL;
+ klass->display_init_cb = NULL;
+ klass->display_reset_cb = NULL;
+ klass->onInitFBO = NULL;
+ klass->onReset = NULL;
}
static void
gst_gl_filter_init (GstGLFilter * filter, GstGLFilterClass * klass)
{
- //gst_element_create_all_pads (GST_ELEMENT (filter));
+ //gst_element_create_all_pads (GST_ELEMENT (filter));
- filter->sinkpad = gst_element_get_static_pad (GST_ELEMENT (filter), "sink");
- filter->srcpad = gst_element_get_static_pad (GST_ELEMENT (filter), "src");
+ filter->sinkpad = gst_element_get_static_pad (GST_ELEMENT (filter), "sink");
+ filter->srcpad = gst_element_get_static_pad (GST_ELEMENT (filter), "src");
- gst_gl_filter_reset (filter);
+ gst_gl_filter_reset (filter);
}
static void
gst_gl_filter_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
+ const GValue * value, GParamSpec * pspec)
{
- //GstGLFilter *filter = GST_GL_FILTER (object);
-
- switch (prop_id)
- {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
+ //GstGLFilter *filter = GST_GL_FILTER (object);
+
+ switch (prop_id)
+ {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
}
static void
gst_gl_filter_get_property (GObject * object, guint prop_id,
- GValue * value, GParamSpec * pspec)
+ GValue * value, GParamSpec * pspec)
{
- //GstGLFilter *filter = GST_GL_FILTER (object);
-
- switch (prop_id)
- {
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
+ //GstGLFilter *filter = GST_GL_FILTER (object);
+
+ switch (prop_id)
+ {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
}
static void
gst_gl_filter_reset (GstGLFilter* filter)
{
- GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
+ GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
- if (filter_class->onReset)
- filter_class->onReset (filter);
+ if (filter_class->onReset)
+ filter_class->onReset (filter);
- if (filter->display)
- {
- //blocking call, delete the FBO
- gst_gl_display_del_fbo (filter->display, filter->fbo,
- filter->depthbuffer);
- g_object_unref (filter->display);
- filter->display = NULL;
+ if (filter->display)
+ {
+ if (filter_class->display_reset_cb != NULL) {
+ gst_gl_display_thread_add (filter->display, gst_gl_filter_stop_gl, filter);
}
- filter->width = 0;
- filter->height = 0;
- filter->fbo = 0;
- filter->depthbuffer = 0;
+ //blocking call, delete the FBO
+ gst_gl_display_del_fbo (filter->display, filter->fbo,
+ filter->depthbuffer);
+ g_object_unref (filter->display);
+ filter->display = NULL;
+ }
+ filter->width = 0;
+ filter->height = 0;
+ filter->fbo = 0;
+ filter->depthbuffer = 0;
}
static gboolean
gst_gl_filter_start (GstBaseTransform* bt)
{
- return TRUE;
+ return TRUE;
}
static gboolean
gst_gl_filter_stop (GstBaseTransform* bt)
{
- GstGLFilter *filter = GST_GL_FILTER (bt);
+ GstGLFilter *filter = GST_GL_FILTER (bt);
+
+ gst_gl_filter_reset (filter);
- gst_gl_filter_reset (filter);
+ return TRUE;
+}
+
+static void
+gst_gl_filter_start_gl (GstGLDisplay *display, gpointer data)
+{
+ GstGLFilter *filter = GST_GL_FILTER (data);
+ GstGLFilterClass *filter_class = GST_GL_FILTER_GET_CLASS (filter);
+
+ filter_class->display_init_cb (filter);
+}
- return TRUE;
+static void
+gst_gl_filter_stop_gl (GstGLDisplay *display, gpointer data)
+{
+ GstGLFilter *filter = GST_GL_FILTER (data);
+ GstGLFilterClass *filter_class = GST_GL_FILTER_GET_CLASS (filter);
+
+ filter_class->display_reset_cb (filter);
}
static GstCaps*
gst_gl_filter_transform_caps (GstBaseTransform* bt,
- GstPadDirection direction, GstCaps* caps)
+ GstPadDirection direction, GstCaps* caps)
{
- //GstGLFilter* filter = GST_GL_FILTER (bt);
- GstStructure* structure = gst_caps_get_structure (caps, 0);
- GstCaps* ret = gst_caps_copy (caps);
- const GValue* par = NULL;
+ //GstGLFilter* filter = GST_GL_FILTER (bt);
+ GstStructure* structure = gst_caps_get_structure (caps, 0);
+ GstCaps* ret = gst_caps_copy (caps);
+ const GValue* par = NULL;
- structure = gst_structure_copy (gst_caps_get_structure (ret, 0));
+ structure = gst_structure_copy (gst_caps_get_structure (ret, 0));
- gst_structure_set (structure,
- "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
- "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
+ gst_structure_set (structure,
+ "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
+ "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
- gst_caps_merge_structure (ret, gst_structure_copy (structure));
+ gst_caps_merge_structure (ret, gst_structure_copy (structure));
- if ((par = gst_structure_get_value (structure, "pixel-aspect-ratio")))
- {
- gst_structure_set (structure,
- "pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
- gst_caps_merge_structure (ret, structure);
- }
- else
- gst_structure_free (structure);
+ if ((par = gst_structure_get_value (structure, "pixel-aspect-ratio")))
+ {
+ gst_structure_set (structure,
+ "pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
+ gst_caps_merge_structure (ret, structure);
+ }
+ else
+ gst_structure_free (structure);
- GST_DEBUG_OBJECT (bt, "returning caps: %" GST_PTR_FORMAT, ret);
+ GST_DEBUG_OBJECT (bt, "returning caps: %" GST_PTR_FORMAT, ret);
- return ret;
+ return ret;
}
static gboolean
gst_gl_filter_get_unit_size (GstBaseTransform* trans, GstCaps* caps,
- guint* size)
+ guint* size)
{
- gboolean ret = FALSE;
- gint width = 0;
- gint height = 0;
+ gboolean ret = FALSE;
+ gint width = 0;
+ gint height = 0;
- ret = gst_gl_buffer_parse_caps (caps, &width, &height);
- if (ret)
- *size = gst_gl_buffer_get_size (width, height);
+ ret = gst_gl_buffer_parse_caps (caps, &width, &height);
+ if (ret)
+ *size = gst_gl_buffer_get_size (width, height);
- return TRUE;
+ return TRUE;
}
static GstFlowReturn
gst_gl_filter_prepare_output_buffer (GstBaseTransform* trans,
- GstBuffer* inbuf, gint size, GstCaps* caps, GstBuffer** buf)
+ GstBuffer* inbuf, gint size, GstCaps* caps, GstBuffer** buf)
{
- GstGLFilter* filter = NULL;
- GstGLBuffer* gl_inbuf = GST_GL_BUFFER (inbuf);
- GstGLBuffer* gl_outbuf = NULL;
+ GstGLFilter* filter = NULL;
+ GstGLBuffer* gl_inbuf = GST_GL_BUFFER (inbuf);
+ GstGLBuffer* gl_outbuf = NULL;
- filter = GST_GL_FILTER (trans);
+ filter = GST_GL_FILTER (trans);
- if (filter->display == NULL)
- {
- GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
+ if (filter->display == NULL)
+ {
+ GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
- filter->display = g_object_ref (gl_inbuf->display);
+ filter->display = g_object_ref (gl_inbuf->display);
- //blocking call, generate a FBO
- gst_gl_display_gen_fbo (filter->display, filter->width, filter->height,
- &filter->fbo, &filter->depthbuffer);
+ //blocking call, generate a FBO
+ gst_gl_display_gen_fbo (filter->display, filter->width, filter->height,
+ &filter->fbo, &filter->depthbuffer);
- if (filter_class->onInitFBO)
- filter_class->onInitFBO (filter);
+ if (filter_class->display_init_cb != NULL) {
+ gst_gl_display_thread_add (filter->display, gst_gl_filter_start_gl, filter);
}
- gl_outbuf = gst_gl_buffer_new (filter->display,
- filter->width, filter->height);
+ if (filter_class->onInitFBO)
+ filter_class->onInitFBO (filter);
+ }
+
+ gl_outbuf = gst_gl_buffer_new (filter->display,
+ filter->width, filter->height);
- *buf = GST_BUFFER (gl_outbuf);
- gst_buffer_set_caps (*buf, caps);
+ *buf = GST_BUFFER (gl_outbuf);
+ gst_buffer_set_caps (*buf, caps);
- if (gl_outbuf->texture)
- return GST_FLOW_OK;
- else
- return GST_FLOW_UNEXPECTED;
+ if (gl_outbuf->texture)
+ return GST_FLOW_OK;
+ else
+ return GST_FLOW_UNEXPECTED;
}
static gboolean
gst_gl_filter_set_caps (GstBaseTransform* bt, GstCaps* incaps,
- GstCaps* outcaps)
+ GstCaps* outcaps)
{
- GstGLFilter* filter = GST_GL_FILTER (bt);
- gboolean ret = FALSE;
- GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
+ GstGLFilter* filter = GST_GL_FILTER (bt);
+ gboolean ret = FALSE;
+ GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
- ret = gst_gl_buffer_parse_caps (outcaps, &filter->width, &filter->height);
+ ret = gst_gl_buffer_parse_caps (outcaps, &filter->width, &filter->height);
- if (filter_class->set_caps)
- filter_class->set_caps (filter, incaps, outcaps);
+ if (filter_class->set_caps)
+ filter_class->set_caps (filter, incaps, outcaps);
- if (!ret)
- {
- GST_DEBUG ("bad caps");
- return FALSE;
- }
+ if (!ret)
+ {
+ GST_DEBUG ("bad caps");
+ return FALSE;
+ }
- GST_ERROR ("set_caps %d %d", filter->width, filter->height);
+ GST_ERROR ("set_caps %d %d", filter->width, filter->height);
- return ret;
+ return ret;
}
static GstFlowReturn
gst_gl_filter_transform (GstBaseTransform* bt, GstBuffer* inbuf,
- GstBuffer* outbuf)
+ GstBuffer* outbuf)
{
- GstGLFilter* filter;
- GstGLBuffer* gl_inbuf = GST_GL_BUFFER (inbuf);
- GstGLBuffer* gl_outbuf = GST_GL_BUFFER (outbuf);
+ GstGLFilter* filter;
+ GstGLBuffer* gl_inbuf = GST_GL_BUFFER (inbuf);
+ GstGLBuffer* gl_outbuf = GST_GL_BUFFER (outbuf);
- filter = GST_GL_FILTER (bt);
+ filter = GST_GL_FILTER (bt);
- gst_gl_filter_do_transform (filter, gl_inbuf, gl_outbuf);
+ gst_gl_filter_do_transform (filter, gl_inbuf, gl_outbuf);
- return GST_FLOW_OK;
+ return GST_FLOW_OK;
}
static gboolean
gst_gl_filter_do_transform (GstGLFilter* filter,
- GstGLBuffer* inbuf, GstGLBuffer* outbuf)
+ GstGLBuffer* inbuf, GstGLBuffer* outbuf)
{
- GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
+ GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
- filter_class->filter (filter, inbuf, outbuf);
+ filter_class->filter (filter, inbuf, outbuf);
- return TRUE;
+ return TRUE;
}
/* convenience functions to simplify filter development */
GLuint input, GLuint target,
GLCB func, gpointer data)
{
- gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
- filter->fbo, filter->depthbuffer, target,
- func,
- filter->width, filter->height, input,
- 0, filter->width, 0, filter->height,
- GST_GL_DISPLAY_PROJECTION_ORTHO2D,
- data);
+ gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
+ filter->fbo, filter->depthbuffer, target,
+ func,
+ filter->width, filter->height, input,
+ 0, filter->width, 0, filter->height,
+ GST_GL_DISPLAY_PROJECTION_ORTHO2D,
+ data);
}