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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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[143/906] Add init and reset callbacks in GstGLFilter to run arbitrary gl code at start and stop. Useful to init and cleanup custom gl resources.
This commit is contained in:
Filippo Argiolas
Tim-Philipp Müller
parent
a54a462705
commit
ce17f1a2db
4 changed files with 215 additions and 173 deletions
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@ -1,6 +1,7 @@
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/*
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* GStreamer
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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@ -1,6 +1,7 @@
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/*
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* GStreamer
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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@ -1,6 +1,7 @@
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/*
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* GStreamer
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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@ -29,45 +30,48 @@ GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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static GstStaticPadTemplate gst_gl_filter_src_pad_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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);
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static GstStaticPadTemplate gst_gl_filter_sink_pad_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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);
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#define DEBUG_INIT(bla) \
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_gl_filter_debug, "glfilter", 0, "glfilter element");
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GST_BOILERPLATE_FULL (GstGLFilter, gst_gl_filter, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
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GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
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static void gst_gl_filter_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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const GValue * value, GParamSpec * pspec);
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static void gst_gl_filter_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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GValue * value, GParamSpec * pspec);
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static GstCaps* gst_gl_filter_transform_caps (GstBaseTransform* bt,
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GstPadDirection direction, GstCaps* caps);
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GstPadDirection direction, GstCaps* caps);
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static void gst_gl_filter_reset (GstGLFilter * filter);
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static gboolean gst_gl_filter_start (GstBaseTransform * bt);
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static gboolean gst_gl_filter_stop (GstBaseTransform * bt);
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static gboolean gst_gl_filter_get_unit_size (GstBaseTransform * trans,
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GstCaps * caps, guint * size);
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GstCaps * caps, guint * size);
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static GstFlowReturn gst_gl_filter_transform (GstBaseTransform * bt,
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GstBuffer * inbuf, GstBuffer * outbuf);
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GstBuffer * inbuf, GstBuffer * outbuf);
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static GstFlowReturn gst_gl_filter_prepare_output_buffer (GstBaseTransform *
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trans, GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf);
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trans, GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf);
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static gboolean gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
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GstCaps * outcaps);
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GstCaps * outcaps);
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static gboolean gst_gl_filter_do_transform (GstGLFilter * filter,
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GstGLBuffer * inbuf, GstGLBuffer * outbuf);
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GstGLBuffer * inbuf, GstGLBuffer * outbuf);
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/* GstGLDisplayThreadFunc */
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static void gst_gl_filter_start_gl (GstGLDisplay *display, gpointer data);
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static void gst_gl_filter_stop_gl (GstGLDisplay *display, gpointer data);
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static void
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@ -76,244 +80,271 @@ gst_gl_filter_base_init (gpointer klass)
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_gl_filter_src_pad_template));
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gst_static_pad_template_get (&gst_gl_filter_src_pad_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_gl_filter_sink_pad_template));
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gst_static_pad_template_get (&gst_gl_filter_sink_pad_template));
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}
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static void
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gst_gl_filter_class_init (GstGLFilterClass * klass)
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{
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GObjectClass *gobject_class;
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GObjectClass *gobject_class;
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gobject_class = (GObjectClass *) klass;
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gobject_class->set_property = gst_gl_filter_set_property;
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gobject_class->get_property = gst_gl_filter_get_property;
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gobject_class = (GObjectClass *) klass;
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gobject_class->set_property = gst_gl_filter_set_property;
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gobject_class->get_property = gst_gl_filter_get_property;
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GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
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gst_gl_filter_transform_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_filter_transform;
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GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_filter_start;
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GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_filter_stop;
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GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_filter_set_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size = gst_gl_filter_get_unit_size;
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GST_BASE_TRANSFORM_CLASS (klass)->prepare_output_buffer =
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gst_gl_filter_prepare_output_buffer;
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GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
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gst_gl_filter_transform_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_filter_transform;
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GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_filter_start;
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GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_filter_stop;
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GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_filter_set_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size = gst_gl_filter_get_unit_size;
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GST_BASE_TRANSFORM_CLASS (klass)->prepare_output_buffer =
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gst_gl_filter_prepare_output_buffer;
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klass->set_caps = NULL;
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klass->filter = NULL;
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klass->onInitFBO = NULL;
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klass->onReset = NULL;
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klass->set_caps = NULL;
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klass->filter = NULL;
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klass->display_init_cb = NULL;
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klass->display_reset_cb = NULL;
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klass->onInitFBO = NULL;
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klass->onReset = NULL;
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}
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static void
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gst_gl_filter_init (GstGLFilter * filter, GstGLFilterClass * klass)
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{
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//gst_element_create_all_pads (GST_ELEMENT (filter));
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//gst_element_create_all_pads (GST_ELEMENT (filter));
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filter->sinkpad = gst_element_get_static_pad (GST_ELEMENT (filter), "sink");
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filter->srcpad = gst_element_get_static_pad (GST_ELEMENT (filter), "src");
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filter->sinkpad = gst_element_get_static_pad (GST_ELEMENT (filter), "sink");
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filter->srcpad = gst_element_get_static_pad (GST_ELEMENT (filter), "src");
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gst_gl_filter_reset (filter);
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gst_gl_filter_reset (filter);
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}
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static void
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gst_gl_filter_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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const GValue * value, GParamSpec * pspec)
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{
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//GstGLFilter *filter = GST_GL_FILTER (object);
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//GstGLFilter *filter = GST_GL_FILTER (object);
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_gl_filter_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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GValue * value, GParamSpec * pspec)
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{
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//GstGLFilter *filter = GST_GL_FILTER (object);
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//GstGLFilter *filter = GST_GL_FILTER (object);
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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switch (prop_id)
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{
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_gl_filter_reset (GstGLFilter* filter)
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{
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GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
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GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
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if (filter_class->onReset)
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filter_class->onReset (filter);
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if (filter_class->onReset)
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filter_class->onReset (filter);
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if (filter->display)
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{
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//blocking call, delete the FBO
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gst_gl_display_del_fbo (filter->display, filter->fbo,
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filter->depthbuffer);
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g_object_unref (filter->display);
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filter->display = NULL;
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if (filter->display)
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{
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if (filter_class->display_reset_cb != NULL) {
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gst_gl_display_thread_add (filter->display, gst_gl_filter_stop_gl, filter);
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}
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filter->width = 0;
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filter->height = 0;
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filter->fbo = 0;
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filter->depthbuffer = 0;
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//blocking call, delete the FBO
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gst_gl_display_del_fbo (filter->display, filter->fbo,
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filter->depthbuffer);
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g_object_unref (filter->display);
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filter->display = NULL;
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}
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filter->width = 0;
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filter->height = 0;
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filter->fbo = 0;
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filter->depthbuffer = 0;
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}
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static gboolean
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gst_gl_filter_start (GstBaseTransform* bt)
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{
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return TRUE;
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return TRUE;
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}
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static gboolean
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gst_gl_filter_stop (GstBaseTransform* bt)
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{
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GstGLFilter *filter = GST_GL_FILTER (bt);
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GstGLFilter *filter = GST_GL_FILTER (bt);
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gst_gl_filter_reset (filter);
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gst_gl_filter_reset (filter);
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return TRUE;
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return TRUE;
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}
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static void
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gst_gl_filter_start_gl (GstGLDisplay *display, gpointer data)
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{
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GstGLFilter *filter = GST_GL_FILTER (data);
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GstGLFilterClass *filter_class = GST_GL_FILTER_GET_CLASS (filter);
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filter_class->display_init_cb (filter);
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}
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static void
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gst_gl_filter_stop_gl (GstGLDisplay *display, gpointer data)
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{
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GstGLFilter *filter = GST_GL_FILTER (data);
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GstGLFilterClass *filter_class = GST_GL_FILTER_GET_CLASS (filter);
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filter_class->display_reset_cb (filter);
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}
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static GstCaps*
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gst_gl_filter_transform_caps (GstBaseTransform* bt,
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GstPadDirection direction, GstCaps* caps)
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GstPadDirection direction, GstCaps* caps)
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{
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//GstGLFilter* filter = GST_GL_FILTER (bt);
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GstStructure* structure = gst_caps_get_structure (caps, 0);
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GstCaps* ret = gst_caps_copy (caps);
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const GValue* par = NULL;
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//GstGLFilter* filter = GST_GL_FILTER (bt);
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GstStructure* structure = gst_caps_get_structure (caps, 0);
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GstCaps* ret = gst_caps_copy (caps);
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const GValue* par = NULL;
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structure = gst_structure_copy (gst_caps_get_structure (ret, 0));
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structure = gst_structure_copy (gst_caps_get_structure (ret, 0));
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gst_structure_set (structure,
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"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
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gst_caps_merge_structure (ret, gst_structure_copy (structure));
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if ((par = gst_structure_get_value (structure, "pixel-aspect-ratio")))
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{
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gst_structure_set (structure,
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"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
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"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
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gst_caps_merge_structure (ret, structure);
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}
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else
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gst_structure_free (structure);
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gst_caps_merge_structure (ret, gst_structure_copy (structure));
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GST_DEBUG_OBJECT (bt, "returning caps: %" GST_PTR_FORMAT, ret);
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if ((par = gst_structure_get_value (structure, "pixel-aspect-ratio")))
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{
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gst_structure_set (structure,
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"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
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gst_caps_merge_structure (ret, structure);
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}
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else
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gst_structure_free (structure);
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GST_DEBUG_OBJECT (bt, "returning caps: %" GST_PTR_FORMAT, ret);
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return ret;
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return ret;
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}
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static gboolean
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gst_gl_filter_get_unit_size (GstBaseTransform* trans, GstCaps* caps,
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guint* size)
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guint* size)
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{
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gboolean ret = FALSE;
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gint width = 0;
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gint height = 0;
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gboolean ret = FALSE;
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gint width = 0;
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gint height = 0;
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ret = gst_gl_buffer_parse_caps (caps, &width, &height);
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if (ret)
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*size = gst_gl_buffer_get_size (width, height);
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ret = gst_gl_buffer_parse_caps (caps, &width, &height);
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if (ret)
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*size = gst_gl_buffer_get_size (width, height);
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return TRUE;
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return TRUE;
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}
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static GstFlowReturn
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gst_gl_filter_prepare_output_buffer (GstBaseTransform* trans,
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GstBuffer* inbuf, gint size, GstCaps* caps, GstBuffer** buf)
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GstBuffer* inbuf, gint size, GstCaps* caps, GstBuffer** buf)
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{
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GstGLFilter* filter = NULL;
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GstGLBuffer* gl_inbuf = GST_GL_BUFFER (inbuf);
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GstGLBuffer* gl_outbuf = NULL;
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GstGLFilter* filter = NULL;
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GstGLBuffer* gl_inbuf = GST_GL_BUFFER (inbuf);
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GstGLBuffer* gl_outbuf = NULL;
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filter = GST_GL_FILTER (trans);
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filter = GST_GL_FILTER (trans);
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if (filter->display == NULL)
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{
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GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
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if (filter->display == NULL)
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{
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GstGLFilterClass* filter_class = GST_GL_FILTER_GET_CLASS (filter);
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filter->display = g_object_ref (gl_inbuf->display);
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filter->display = g_object_ref (gl_inbuf->display);
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//blocking call, generate a FBO
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gst_gl_display_gen_fbo (filter->display, filter->width, filter->height,
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&filter->fbo, &filter->depthbuffer);
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//blocking call, generate a FBO
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gst_gl_display_gen_fbo (filter->display, filter->width, filter->height,
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&filter->fbo, &filter->depthbuffer);
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if (filter_class->onInitFBO)
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filter_class->onInitFBO (filter);
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if (filter_class->display_init_cb != NULL) {
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gst_gl_display_thread_add (filter->display, gst_gl_filter_start_gl, filter);
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}
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gl_outbuf = gst_gl_buffer_new (filter->display,
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filter->width, filter->height);
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if (filter_class->onInitFBO)
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filter_class->onInitFBO (filter);
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}
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*buf = GST_BUFFER (gl_outbuf);
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gst_buffer_set_caps (*buf, caps);
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gl_outbuf = gst_gl_buffer_new (filter->display,
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filter->width, filter->height);
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if (gl_outbuf->texture)
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return GST_FLOW_OK;
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else
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return GST_FLOW_UNEXPECTED;
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*buf = GST_BUFFER (gl_outbuf);
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gst_buffer_set_caps (*buf, caps);
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||||
|
||||
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 */
|
||||
|
|
@ -323,11 +354,11 @@ gst_gl_filter_render_to_target (GstGLFilter *filter,
|
|||
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);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
/*
|
||||
* 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
|
||||
|
|
@ -40,34 +41,42 @@ typedef struct _GstGLFilterClass GstGLFilterClass;
|
|||
|
||||
|
||||
typedef gboolean (*GstGLFilterSetCaps) (GstGLFilter* filter,
|
||||
GstCaps* incaps, GstCaps* outcaps);
|
||||
GstCaps* incaps, GstCaps* outcaps);
|
||||
typedef gboolean (*GstGLFilterProcessFunc) (GstGLFilter *filter,
|
||||
GstGLBuffer *inbuf, GstGLBuffer *outbuf);
|
||||
GstGLBuffer *inbuf, GstGLBuffer *outbuf);
|
||||
typedef void (*GstGLFilterOnInitFBO) (GstGLFilter *filter);
|
||||
typedef void (*GstGLFilterOnReset) (GstGLFilter *filter);
|
||||
|
||||
typedef void (*GstGLFilterGLStartFunc) (GstGLFilter *filter);
|
||||
typedef void (*GstGLFilterGLStopFunc) (GstGLFilter *filter);
|
||||
|
||||
struct _GstGLFilter
|
||||
{
|
||||
GstBaseTransform base_transform;
|
||||
GstBaseTransform base_transform;
|
||||
|
||||
GstPad *srcpad;
|
||||
GstPad *sinkpad;
|
||||
GstPad *srcpad;
|
||||
GstPad *sinkpad;
|
||||
|
||||
GstGLDisplay *display;
|
||||
GstGLDisplay *display;
|
||||
|
||||
gint width;
|
||||
gint height;
|
||||
GLuint fbo;
|
||||
GLuint depthbuffer;
|
||||
gint width;
|
||||
gint height;
|
||||
GLuint fbo;
|
||||
GLuint depthbuffer;
|
||||
};
|
||||
|
||||
struct _GstGLFilterClass
|
||||
{
|
||||
GstBaseTransformClass base_transform_class;
|
||||
GstGLFilterSetCaps set_caps;
|
||||
GstGLFilterProcessFunc filter;
|
||||
GstGLFilterOnInitFBO onInitFBO;
|
||||
GstGLFilterOnReset onReset;
|
||||
GstBaseTransformClass base_transform_class;
|
||||
GstGLFilterSetCaps set_caps;
|
||||
GstGLFilterProcessFunc filter;
|
||||
GstGLFilterOnInitFBO onInitFBO;
|
||||
|
||||
GstGLFilterOnReset onReset;
|
||||
|
||||
/* useful to init and cleanup custom gl resources */
|
||||
GstGLFilterGLStartFunc display_init_cb; /* run arbitrary gl code at start */
|
||||
GstGLFilterGLStopFunc display_reset_cb; /* run arbitrary gl code at stop */
|
||||
};
|
||||
|
||||
GType gst_gl_filter_get_type(void);
|
||||
|
|
|
|||
Loading…
Reference in a new issue