mirror of
https://github.com/Rafostar/clapper.git
synced 2025-08-29 23:32:04 +02:00
04a028d689
Create a GL context handler subclass of recently added context handler base class and rework code to use it. This simplifies a lot of things, like: switching of importers at runtime, handling context queries, sharing data between importers, etc.
104 lines
3.2 KiB
C
Vendored
104 lines
3.2 KiB
C
Vendored
/*
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* Copyright (C) 2022 Rafał Dzięgiel <rafostar.github@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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* 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 "gstclapperrawimporter.h"
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#include "gst/plugin/gstgtkutils.h"
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#include "gst/plugin/gstgdkformats.h"
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#define GST_CAT_DEFAULT gst_clapper_raw_importer_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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#define parent_class gst_clapper_raw_importer_parent_class
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GST_CLAPPER_IMPORTER_DEFINE (GstClapperRawImporter, gst_clapper_raw_importer, GST_TYPE_CLAPPER_IMPORTER);
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static GstBufferPool *
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gst_clapper_raw_importer_create_pool (GstClapperImporter *importer, GstStructure **config)
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{
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GstClapperRawImporter *self = GST_CLAPPER_RAW_IMPORTER_CAST (importer);
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GstBufferPool *pool;
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GST_DEBUG_OBJECT (self, "Creating new buffer pool");
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pool = gst_video_buffer_pool_new ();
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*config = gst_buffer_pool_get_config (pool);
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gst_buffer_pool_config_add_option (*config, GST_BUFFER_POOL_OPTION_VIDEO_META);
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return pool;
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}
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static GdkTexture *
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gst_clapper_raw_importer_generate_texture (GstClapperImporter *importer,
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GstBuffer *buffer, GstVideoInfo *v_info)
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{
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GdkTexture *texture;
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GstVideoFrame frame;
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if (G_UNLIKELY (!gst_video_frame_map (&frame, v_info, buffer, GST_MAP_READ))) {
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GST_ERROR_OBJECT (importer, "Could not map input buffer for reading");
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return NULL;
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}
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texture = gst_video_frame_into_gdk_texture (&frame);
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gst_video_frame_unmap (&frame);
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return texture;
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}
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static void
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gst_clapper_raw_importer_init (GstClapperRawImporter *self)
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{
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}
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static void
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gst_clapper_raw_importer_class_init (GstClapperRawImporterClass *klass)
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{
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GstClapperImporterClass *importer_class = (GstClapperImporterClass *) klass;
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GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "clapperrawimporter", 0,
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"Clapper RAW Importer");
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importer_class->create_pool = gst_clapper_raw_importer_create_pool;
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importer_class->generate_texture = gst_clapper_raw_importer_generate_texture;
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}
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GstClapperImporter *
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make_importer (GPtrArray *context_handlers)
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{
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return g_object_new (GST_TYPE_CLAPPER_RAW_IMPORTER, NULL);
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}
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GstCaps *
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make_caps (gboolean is_template, GstRank *rank, GPtrArray *context_handlers)
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{
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*rank = GST_RANK_MARGINAL;
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return gst_caps_from_string (
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GST_VIDEO_CAPS_MAKE_WITH_FEATURES (GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY ", "
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GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION,
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"{ " GST_GDK_MEMORY_FORMATS " }")
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"; "
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GST_VIDEO_CAPS_MAKE (
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"{ " GST_GDK_MEMORY_FORMATS " }"));
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}
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