gstreamer/gst/playback/gstplaysinkvideoconvert.c

93 lines
2.8 KiB
C
Raw Normal View History

/* GStreamer
* Copyright (C) <2011> Sebastian Dröge <sebastian.droege@collabora.co.uk>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstplaysinkvideoconvert.h"
#include <gst/pbutils/pbutils.h>
#include <gst/gst-i18n-plugin.h>
GST_DEBUG_CATEGORY_STATIC (gst_play_sink_video_convert_debug);
#define GST_CAT_DEFAULT gst_play_sink_video_convert_debug
#define parent_class gst_play_sink_video_convert_parent_class
G_DEFINE_TYPE (GstPlaySinkVideoConvert, gst_play_sink_video_convert,
GST_TYPE_PLAY_SINK_CONVERT_BIN);
static gboolean
gst_play_sink_video_convert_add_conversion_elements (GstPlaySinkVideoConvert *
self)
{
GstPlaySinkConvertBin *cbin = GST_PLAY_SINK_CONVERT_BIN (self);
GstElement *el, *prev = NULL;
el = gst_play_sink_convert_bin_add_conversion_element_factory (cbin,
COLORSPACE, "conv");
if (el)
prev = el;
el = gst_play_sink_convert_bin_add_conversion_element_factory (cbin,
"videoscale", "scale");
if (el) {
/* Add black borders if necessary to keep the DAR */
g_object_set (el, "add-borders", TRUE, NULL);
if (prev) {
if (!gst_element_link_pads_full (prev, "src", el, "sink",
GST_PAD_LINK_CHECK_TEMPLATE_CAPS))
goto link_failed;
}
prev = el;
}
return TRUE;
link_failed:
return FALSE;
}
static void
gst_play_sink_video_convert_class_init (GstPlaySinkVideoConvertClass * klass)
{
GstElementClass *gstelement_class;
GST_DEBUG_CATEGORY_INIT (gst_play_sink_video_convert_debug,
"playsinkvideoconvert", 0, "play bin");
gstelement_class = (GstElementClass *) klass;
gst_element_class_set_details_simple (gstelement_class,
"Player Sink Video Converter", "Video/Bin/Converter",
"Convenience bin for video conversion",
"Sebastian Dröge <sebastian.droege@collabora.co.uk>");
}
static void
gst_play_sink_video_convert_init (GstPlaySinkVideoConvert * self)
{
GstPlaySinkConvertBin *cbin = GST_PLAY_SINK_CONVERT_BIN (self);
cbin->audio = FALSE;
gst_play_sink_video_convert_add_conversion_elements (self);
gst_play_sink_convert_bin_cache_converter_caps (cbin);
}