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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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e41e31f2ae
Which can do colorspace conversion if necessary. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/899>
118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/* GStreamer
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* Copyright 2023 Igalia S.L.
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* @author: Thibault Saunier <tsaunier@igalia.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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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "gstautovideo.h"
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GST_DEBUG_CATEGORY (autovideo_debug);
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#define GST_CAT_DEFAULT (autovideo_debug)
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static gboolean
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append_elements (GString * name, GString * bindesc,
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const gchar * const *elements)
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{
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if (!elements) {
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/* Nothing to do. */
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return TRUE;
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}
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for (gint i = 0; elements[i]; i++) {
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gchar **e = g_strsplit (elements[i], " ", 2);
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GstElementFactory *factory = gst_element_factory_find (g_strchomp (e[0]));
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if (!factory) {
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GST_DEBUG_OBJECT (NULL, "Factory %s not found: %s", e[0], elements[i]);
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g_strfreev (e);
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return FALSE;
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}
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if (name) {
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g_string_append (name, e[0]);
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}
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g_strfreev (e);
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if (bindesc->len > 0) {
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g_string_append (bindesc, " ! ");
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}
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g_string_append (bindesc, elements[i]);
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}
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return TRUE;
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}
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static void
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register_known_bin (GstBaseAutoConvert * self,
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const gchar * const *first_elements,
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const gchar * const *colorspace_converters,
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const gchar * const *last_elements,
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const gchar * const *filters, GstRank rank)
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{
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GString *name = g_string_new ("autovideoconvert-");
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GString *bindesc = g_string_new ("");
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if (!append_elements (name, bindesc, first_elements))
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goto abort;
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if (!append_elements (name, bindesc, colorspace_converters))
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goto abort;
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for (gint i = 0; filters && filters[i]; i++) {
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const gchar *tmp[2] = { filters[i], NULL };
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if (!append_elements (name, bindesc, tmp))
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goto abort;
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if (!append_elements (NULL, bindesc, colorspace_converters))
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goto abort;
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}
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if (!append_elements (name, bindesc, last_elements))
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goto abort;
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gst_base_auto_convert_register_filter (GST_BASE_AUTO_CONVERT (self),
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g_string_free (name, FALSE), g_string_free (bindesc, FALSE), rank);
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return;
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abort:
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g_string_free (name, TRUE);
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g_string_free (bindesc, TRUE);
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}
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void
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gst_auto_video_register_well_known_bins (GstBaseAutoConvert * self,
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const GstAutoVideoFilterGenerator * gen)
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{
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static gsize gst_auto_video_register_well_known_bins_once = 0;
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if (g_once_init_enter (&gst_auto_video_register_well_known_bins_once)) {
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GST_DEBUG_CATEGORY_INIT (autovideo_debug, "autovideo", 0, "Auto video");
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g_once_init_leave (&gst_auto_video_register_well_known_bins_once, TRUE);
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}
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for (gint i = 0; gen[i].colorspace_converters[0] || gen[i].first_elements[0]
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|| gen[i].last_elements[0] || gen[i].filters[0]; i++) {
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register_known_bin (self, gen[i].first_elements,
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gen[i].colorspace_converters, gen[i].last_elements, gen[i].filters,
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gen[i].rank);
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}
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}
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