/* GStreamer Editing Services * Copyright (C) 2010 Brandon Lewis <brandon.lewis@collabora.co.uk> * 2010 Nokia Corporation * Copyright (C) 2020 Igalia S.L * Author: 2020 Thibault Saunier <tsaunier@igalia.com> * * 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:gesvideotestsource * @title: GESVideoTestSource * @short_description: produce solid colors and patterns, possibly with a time * overlay. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "ges-internal.h" #include "ges-track-element.h" #include "ges-video-test-source.h" #define DEFAULT_VPATTERN GES_VIDEO_TEST_PATTERN_SMPTE struct _GESVideoTestSourcePrivate { GESVideoTestPattern pattern; GstElement *capsfilter; }; static void ges_extractable_interface_init (GESExtractableInterface * iface) { iface->check_id = ges_test_source_asset_check_id; iface->asset_type = GES_TYPE_TRACK_ELEMENT_ASSET; } static GstStructure * ges_video_test_source_asset_get_config (GESAsset * asset) { const gchar *id = ges_asset_get_id (asset); if (g_strcmp0 (id, g_type_name (ges_asset_get_extractable_type (asset)))) return gst_structure_from_string (ges_asset_get_id (asset), NULL); return NULL; } G_DEFINE_TYPE_WITH_CODE (GESVideoTestSource, ges_video_test_source, GES_TYPE_VIDEO_SOURCE, G_ADD_PRIVATE (GESVideoTestSource) G_IMPLEMENT_INTERFACE (GES_TYPE_EXTRACTABLE, ges_extractable_interface_init)); static GstElement *ges_video_test_source_create_source (GESSource * source); static gboolean get_natural_size (GESVideoSource * source, gint * width, gint * height) { gboolean res = FALSE; GESTimelineElement *parent = GES_TIMELINE_ELEMENT_PARENT (source); if (parent) { GESAsset *asset = ges_extractable_get_asset (GES_EXTRACTABLE (parent)); if (asset) res = ges_test_clip_asset_get_natural_size (asset, width, height); } if (!res) { *width = DEFAULT_WIDTH; *height = DEFAULT_HEIGHT; } return TRUE; } static gboolean _set_parent (GESTimelineElement * element, GESTimelineElement * parent) { gint width, height, fps_n, fps_d; GstCaps *caps; GESVideoTestSource *self = GES_VIDEO_TEST_SOURCE (element); if (!parent) goto done; g_assert (self->priv->capsfilter); /* Setting the parent ourself as we need it to get the natural size */ element->parent = parent; if (!ges_video_source_get_natural_size (GES_VIDEO_SOURCE (self), &width, &height)) { width = DEFAULT_WIDTH; height = DEFAULT_HEIGHT; } if (!ges_timeline_element_get_natural_framerate (parent, &fps_n, &fps_d)) { fps_n = DEFAULT_FRAMERATE_N; fps_d = DEFAULT_FRAMERATE_D; } caps = gst_caps_new_simple ("video/x-raw", "width", G_TYPE_INT, width, "height", G_TYPE_INT, height, "framerate", GST_TYPE_FRACTION, fps_n, fps_d, NULL); g_object_set (self->priv->capsfilter, "caps", caps, NULL); gst_caps_unref (caps); done: return GES_TIMELINE_ELEMENT_CLASS (ges_video_test_source_parent_class)->set_parent (element, parent); } static gboolean _get_natural_framerate (GESTimelineElement * element, gint * fps_n, gint * fps_d) { gboolean res = FALSE; GESTimelineElement *parent = GES_TIMELINE_ELEMENT_PARENT (element); if (parent) { GESAsset *asset = ges_extractable_get_asset (GES_EXTRACTABLE (parent)); if (asset) { res = ges_clip_asset_get_natural_framerate (GES_CLIP_ASSET (asset), fps_n, fps_d); } } if (!res) { *fps_n = DEFAULT_FRAMERATE_N; *fps_d = DEFAULT_FRAMERATE_D; } return TRUE; } static void dispose (GObject * object) { G_OBJECT_CLASS (ges_video_test_source_parent_class)->dispose (object); } static void ges_video_test_source_class_init (GESVideoTestSourceClass * klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GESVideoSourceClass *vsource_class = GES_VIDEO_SOURCE_CLASS (klass); GESSourceClass *source_class = GES_SOURCE_CLASS (klass); source_class->create_source = ges_video_test_source_create_source; vsource_class->ABI.abi.get_natural_size = get_natural_size; object_class->dispose = dispose; GES_TIMELINE_ELEMENT_CLASS (klass)->set_parent = _set_parent; GES_TIMELINE_ELEMENT_CLASS (klass)->get_natural_framerate = _get_natural_framerate; } static void ges_video_test_source_init (GESVideoTestSource * self) { self->priv = ges_video_test_source_get_instance_private (self); self->priv->pattern = DEFAULT_VPATTERN; } static GstStructure * ges_video_test_source_get_config (GESVideoTestSource * self) { GESAsset *asset = ges_extractable_get_asset (GES_EXTRACTABLE (self)); if (asset) return ges_video_test_source_asset_get_config (asset); return NULL; } static GstElement * ges_video_test_source_create_overlay (GESVideoTestSource * self) { const gchar *bindesc = NULL; GstStructure *config = ges_video_test_source_get_config (self); if (!config) return NULL; if (gst_structure_has_name (config, "time-overlay")) { gboolean disable_timecodestamper; if (gst_structure_get_boolean (config, "disable-timecodestamper", &disable_timecodestamper)) bindesc = "timeoverlay"; else bindesc = "timecodestamper ! timeoverlay"; } gst_structure_free (config); if (!bindesc) return NULL; return gst_parse_bin_from_description (bindesc, TRUE, NULL); } static GstElement * ges_video_test_source_create_source (GESSource * source) { GstCaps *caps; gint pattern; GstElement *testsrc, *res; GstElement *overlay; const gchar *props[] = { "pattern", "background-color", "foreground-color", NULL }; GPtrArray *elements; GESVideoTestSource *self = GES_VIDEO_TEST_SOURCE (source); GESTrackElement *element = GES_TRACK_ELEMENT (source); g_assert (!GES_TIMELINE_ELEMENT_PARENT (source)); testsrc = gst_element_factory_make ("videotestsrc", NULL); self->priv->capsfilter = gst_element_factory_make ("capsfilter", NULL); pattern = self->priv->pattern; g_object_set (testsrc, "pattern", pattern, NULL); elements = g_ptr_array_new (); g_ptr_array_add (elements, self->priv->capsfilter); caps = gst_caps_new_simple ("video/x-raw", "width", G_TYPE_INT, DEFAULT_WIDTH, "height", G_TYPE_INT, DEFAULT_HEIGHT, "framerate", GST_TYPE_FRACTION, DEFAULT_FRAMERATE_N, DEFAULT_FRAMERATE_D, NULL); g_object_set (self->priv->capsfilter, "caps", caps, NULL); gst_caps_unref (caps); overlay = ges_video_test_source_create_overlay (self); if (overlay) { const gchar *overlay_props[] = { "time-mode", "text-y", "text-x", "text-width", "test-height", "halignment", "valignment", "font-desc", NULL }; ges_track_element_add_children_props (element, overlay, NULL, NULL, overlay_props); g_ptr_array_add (elements, overlay); } ges_track_element_add_children_props (element, testsrc, NULL, NULL, props); res = ges_source_create_topbin (GES_SOURCE (element), "videotestsrc", testsrc, elements); return res; } /** * ges_video_test_source_set_pattern: * @self: a #GESVideoTestSource * @pattern: a #GESVideoTestPattern * * Sets the source to use the given @pattern. */ void ges_video_test_source_set_pattern (GESVideoTestSource * self, GESVideoTestPattern pattern) { GstElement *element = ges_track_element_get_element (GES_TRACK_ELEMENT (self)); self->priv->pattern = pattern; if (element) { GValue val = { 0 }; g_value_init (&val, GES_VIDEO_TEST_PATTERN_TYPE); g_value_set_enum (&val, pattern); ges_track_element_set_child_property (GES_TRACK_ELEMENT (self), "pattern", &val); } } /** * ges_video_test_source_get_pattern: * @source: a #GESVideoTestPattern * * Get the video pattern used by the @source. * * Returns: The video pattern used by the @source. */ GESVideoTestPattern ges_video_test_source_get_pattern (GESVideoTestSource * source) { GValue val = { 0 }; ges_track_element_get_child_property (GES_TRACK_ELEMENT (source), "pattern", &val); return g_value_get_enum (&val); } /** * ges_video_test_source_new: * * Creates a new #GESVideoTestSource. * * Returns: (transfer floating) (nullable): The newly created * #GESVideoTestSource, or %NULL if there was an error. */ GESVideoTestSource * ges_video_test_source_new (void) { GESVideoTestSource *res; GESAsset *asset = ges_asset_request (GES_TYPE_VIDEO_TEST_SOURCE, NULL, NULL); res = GES_VIDEO_TEST_SOURCE (ges_asset_extract (asset, NULL)); gst_object_unref (asset); return res; }