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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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a7347ca8f7
Export GES library API in headers when we're building the library itself, otherwise import the API from the headers. This fixes linker warnings on Windows when building with MSVC. Fix up some missing config.h includes when building the lib which is needed to get the export api define from config.h Fixes https://gitlab.freedesktop.org/gstreamer/gst-editing-services/issues/42
158 lines
4.2 KiB
C
158 lines
4.2 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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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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/**
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* SECTION:gessource
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* @title: GESSource
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* @short_description: Base Class for single-media sources
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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 "ges-internal.h"
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#include "ges/ges-meta-container.h"
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#include "ges-track-element.h"
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#include "ges-source.h"
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#include "ges-layer.h"
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#include "gstframepositioner.h"
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struct _GESSourcePrivate
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{
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/* Dummy variable */
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GstFramePositioner *positioner;
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};
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G_DEFINE_TYPE_WITH_PRIVATE (GESSource, ges_source, GES_TYPE_TRACK_ELEMENT);
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/******************************
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* Internal helper methods *
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******************************/
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static void
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_pad_added_cb (GstElement * element, GstPad * srcpad, GstPad * sinkpad)
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{
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GstPadLinkReturn res;
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gst_element_no_more_pads (element);
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res = gst_pad_link (srcpad, sinkpad);
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#ifndef GST_DISABLE_GST_DEBUG
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if (res != GST_PAD_LINK_OK) {
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GstCaps *srccaps = NULL;
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GstCaps *sinkcaps = NULL;
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srccaps = gst_pad_query_caps (srcpad, NULL);
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sinkcaps = gst_pad_query_caps (sinkpad, NULL);
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GST_WARNING_OBJECT (element, "Could not link source with "
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"conversion bin: %s (srcpad caps %" GST_PTR_FORMAT
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" sinkpad caps: %" GST_PTR_FORMAT ")",
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gst_pad_link_get_name (res), srccaps, sinkcaps);
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gst_caps_unref (srccaps);
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gst_caps_unref (sinkcaps);
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}
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#endif
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}
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static void
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_ghost_pad_added_cb (GstElement * element, GstPad * srcpad, GstElement * bin)
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{
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GstPad *ghost;
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ghost = gst_ghost_pad_new ("src", srcpad);
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gst_pad_set_active (ghost, TRUE);
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gst_element_add_pad (bin, ghost);
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gst_element_no_more_pads (element);
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}
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GstElement *
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ges_source_create_topbin (const gchar * bin_name, GstElement * sub_element, ...)
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{
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va_list argp;
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GstElement *element;
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GstElement *prev = NULL;
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GstElement *first = NULL;
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GstElement *bin;
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GstPad *sub_srcpad;
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va_start (argp, sub_element);
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bin = gst_bin_new (bin_name);
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gst_bin_add (GST_BIN (bin), sub_element);
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while ((element = va_arg (argp, GstElement *)) != NULL) {
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gst_bin_add (GST_BIN (bin), element);
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if (prev)
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gst_element_link (prev, element);
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prev = element;
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if (first == NULL)
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first = element;
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}
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va_end (argp);
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sub_srcpad = gst_element_get_static_pad (sub_element, "src");
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if (prev != NULL) {
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GstPad *srcpad, *sinkpad, *ghost;
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srcpad = gst_element_get_static_pad (prev, "src");
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ghost = gst_ghost_pad_new ("src", srcpad);
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gst_pad_set_active (ghost, TRUE);
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gst_element_add_pad (bin, ghost);
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sinkpad = gst_element_get_static_pad (first, "sink");
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if (sub_srcpad)
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gst_pad_link (sub_srcpad, sinkpad);
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else
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g_signal_connect (sub_element, "pad-added", G_CALLBACK (_pad_added_cb),
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sinkpad);
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gst_object_unref (srcpad);
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gst_object_unref (sinkpad);
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} else if (sub_srcpad) {
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GstPad *ghost;
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ghost = gst_ghost_pad_new ("src", sub_srcpad);
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gst_pad_set_active (ghost, TRUE);
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gst_element_add_pad (bin, ghost);
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} else {
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g_signal_connect (sub_element, "pad-added",
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G_CALLBACK (_ghost_pad_added_cb), bin);
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}
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if (sub_srcpad)
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gst_object_unref (sub_srcpad);
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return bin;
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}
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static void
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ges_source_class_init (GESSourceClass * klass)
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{
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GESTrackElementClass *track_class = GES_TRACK_ELEMENT_CLASS (klass);
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track_class->nleobject_factorytype = "nlesource";
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track_class->create_element = NULL;
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}
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static void
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ges_source_init (GESSource * self)
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{
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self->priv = ges_source_get_instance_private (self);
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}
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