/* * GStreamer * Copyright (C) <1999> Erik Walthinsen * Copyright (C) 2002,2007 David A. Schleef * Copyright (C) 2008 Julien Isorce * Copyright (C) 2015 Matthew Waters * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ /** * SECTION:element-gltestsrc * @title: gltestsrc * * The gltestsrc element is used to produce test video texture. * The video test produced can be controlled with the "pattern" * property. * * ## Example launch line * * |[ * gst-launch-1.0 -v gltestsrc pattern=smpte ! glimagesink * ]| * Shows original SMPTE color bars in a window. * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include "gstgltestsrc.h" #include "gltestsrc.h" GST_DEBUG_CATEGORY_STATIC (gl_test_src_debug); #define GST_CAT_DEFAULT gl_test_src_debug enum { PROP_0, PROP_PATTERN, PROP_IS_LIVE /* FILL ME */ }; /* *INDENT-OFF* */ static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_GL_MEMORY "), " "format = (string) RGBA, " "width = " GST_VIDEO_SIZE_RANGE ", " "height = " GST_VIDEO_SIZE_RANGE ", " "framerate = " GST_VIDEO_FPS_RANGE "," "texture-target = (string) 2D") ); /* *INDENT-ON* */ #define gst_gl_test_src_parent_class parent_class G_DEFINE_TYPE (GstGLTestSrc, gst_gl_test_src, GST_TYPE_GL_BASE_SRC); static void gst_gl_test_src_set_pattern (GstGLTestSrc * gltestsrc, int pattern_type); static void gst_gl_test_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_gl_test_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static GstCaps *gst_gl_test_src_fixate (GstBaseSrc * bsrc, GstCaps * caps); static gboolean gst_gl_test_src_is_seekable (GstBaseSrc * psrc); static gboolean gst_gl_test_src_callback (gpointer stuff); static gboolean gst_gl_test_src_gl_start (GstGLBaseSrc * src); static void gst_gl_test_src_gl_stop (GstGLBaseSrc * src); static gboolean gst_gl_test_src_fill_memory (GstGLBaseSrc * src, GstGLMemory * memory); #define GST_TYPE_GL_TEST_SRC_PATTERN (gst_gl_test_src_pattern_get_type ()) static GType gst_gl_test_src_pattern_get_type (void) { static GType gl_test_src_pattern_type = 0; static const GEnumValue pattern_types[] = { {GST_GL_TEST_SRC_SMPTE, "SMPTE 100% color bars", "smpte"}, {GST_GL_TEST_SRC_SNOW, "Random (television snow)", "snow"}, {GST_GL_TEST_SRC_BLACK, "100% Black", "black"}, {GST_GL_TEST_SRC_WHITE, "100% White", "white"}, {GST_GL_TEST_SRC_RED, "Red", "red"}, {GST_GL_TEST_SRC_GREEN, "Green", "green"}, {GST_GL_TEST_SRC_BLUE, "Blue", "blue"}, {GST_GL_TEST_SRC_CHECKERS1, "Checkers 1px", "checkers-1"}, {GST_GL_TEST_SRC_CHECKERS2, "Checkers 2px", "checkers-2"}, {GST_GL_TEST_SRC_CHECKERS4, "Checkers 4px", "checkers-4"}, {GST_GL_TEST_SRC_CHECKERS8, "Checkers 8px", "checkers-8"}, {GST_GL_TEST_SRC_CIRCULAR, "Circular", "circular"}, {GST_GL_TEST_SRC_BLINK, "Blink", "blink"}, {GST_GL_TEST_SRC_MANDELBROT, "Mandelbrot Fractal", "mandelbrot"}, {0, NULL, NULL} }; if (!gl_test_src_pattern_type) { gl_test_src_pattern_type = g_enum_register_static ("GstGLTestSrcPattern", pattern_types); } return gl_test_src_pattern_type; } static void gst_gl_test_src_class_init (GstGLTestSrcClass * klass) { GObjectClass *gobject_class; GstBaseSrcClass *gstbasesrc_class; GstGLBaseSrcClass *gstglbasesrc_class; GstElementClass *element_class; GST_DEBUG_CATEGORY_INIT (gl_test_src_debug, "gltestsrc", 0, "Video Test Source"); gobject_class = G_OBJECT_CLASS (klass); gstbasesrc_class = GST_BASE_SRC_CLASS (klass); gstglbasesrc_class = GST_GL_BASE_SRC_CLASS (klass); element_class = GST_ELEMENT_CLASS (klass); gobject_class->set_property = gst_gl_test_src_set_property; gobject_class->get_property = gst_gl_test_src_get_property; g_object_class_install_property (gobject_class, PROP_PATTERN, g_param_spec_enum ("pattern", "Pattern", "Type of test pattern to generate", GST_TYPE_GL_TEST_SRC_PATTERN, GST_GL_TEST_SRC_SMPTE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_IS_LIVE, g_param_spec_boolean ("is-live", "Is Live", "Whether to act as a live source", FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); gst_element_class_set_metadata (element_class, "Video test source", "Source/Video", "Creates a test video stream", "David A. Schleef "); gst_element_class_add_static_pad_template (element_class, &src_factory); gstbasesrc_class->is_seekable = gst_gl_test_src_is_seekable; gstbasesrc_class->fixate = gst_gl_test_src_fixate; gstglbasesrc_class->supported_gl_api = GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2; gstglbasesrc_class->gl_start = gst_gl_test_src_gl_start; gstglbasesrc_class->gl_stop = gst_gl_test_src_gl_stop; gstglbasesrc_class->fill_gl_memory = gst_gl_test_src_fill_memory; } static void gst_gl_test_src_init (GstGLTestSrc * src) { gst_gl_test_src_set_pattern (src, GST_GL_TEST_SRC_SMPTE); } static GstCaps * gst_gl_test_src_fixate (GstBaseSrc * bsrc, GstCaps * caps) { GstStructure *structure; GST_DEBUG ("fixate"); caps = gst_caps_make_writable (caps); structure = gst_caps_get_structure (caps, 0); gst_structure_fixate_field_nearest_int (structure, "width", 320); gst_structure_fixate_field_nearest_int (structure, "height", 240); gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1); caps = GST_BASE_SRC_CLASS (parent_class)->fixate (bsrc, caps); return caps; } static void gst_gl_test_src_set_pattern (GstGLTestSrc * gltestsrc, gint pattern_type) { gltestsrc->set_pattern = pattern_type; } static void gst_gl_test_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstGLTestSrc *src = GST_GL_TEST_SRC (object); switch (prop_id) { case PROP_PATTERN: gst_gl_test_src_set_pattern (src, g_value_get_enum (value)); break; case PROP_IS_LIVE: gst_base_src_set_live (GST_BASE_SRC (src), g_value_get_boolean (value)); break; default: break; } } static void gst_gl_test_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstGLTestSrc *src = GST_GL_TEST_SRC (object); switch (prop_id) { case PROP_PATTERN: g_value_set_enum (value, src->set_pattern); break; case PROP_IS_LIVE: g_value_set_boolean (value, gst_base_src_is_live (GST_BASE_SRC (src))); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gboolean gst_gl_test_src_is_seekable (GstBaseSrc * psrc) { /* we're seekable... */ return TRUE; } static gboolean gst_gl_test_src_callback (gpointer stuff) { GstGLTestSrc *src = GST_GL_TEST_SRC (stuff); GstGLBaseSrc *glbasesrc = GST_GL_BASE_SRC (src); const struct SrcFuncs *funcs; funcs = src->src_funcs; if (!funcs || src->set_pattern != src->active_pattern) { if (src->src_impl && funcs) funcs->free (src->src_impl); src->src_funcs = funcs = gst_gl_test_src_get_src_funcs_for_pattern (src->set_pattern); if (funcs == NULL) { GST_ERROR_OBJECT (src, "Could not find an implementation of the " "requested pattern"); return FALSE; } src->src_impl = funcs->new (src); if (!funcs->init (src->src_impl, glbasesrc->context, &glbasesrc->out_info)) { GST_ERROR_OBJECT (src, "Failed to initialize pattern"); return FALSE; } src->active_pattern = src->set_pattern; } return funcs->fill_bound_fbo (src->src_impl); } static gboolean gst_gl_test_src_fill_memory (GstGLBaseSrc * src, GstGLMemory * memory) { GstGLTestSrc *test_src = GST_GL_TEST_SRC (src); return gst_gl_framebuffer_draw_to_texture (test_src->fbo, memory, gst_gl_test_src_callback, test_src); } static gboolean gst_gl_test_src_gl_start (GstGLBaseSrc * bsrc) { GstGLTestSrc *src = GST_GL_TEST_SRC (bsrc); src->fbo = gst_gl_framebuffer_new_with_default_depth (bsrc->context, GST_VIDEO_INFO_WIDTH (&bsrc->out_info), GST_VIDEO_INFO_HEIGHT (&bsrc->out_info)); return TRUE; } static void gst_gl_test_src_gl_stop (GstGLBaseSrc * bsrc) { GstGLTestSrc *src = GST_GL_TEST_SRC (bsrc); if (src->fbo) gst_object_unref (src->fbo); src->fbo = NULL; if (src->src_impl) src->src_funcs->free (src->src_impl); src->src_impl = NULL; }