gstreamer/sys/vdpau/gstvdp/gstvdputils.c

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/*
* GStreamer
* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@gmail.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
2009-11-23 08:17:39 +00:00
#include "gstvdpvideobuffer.h"
#include "gstvdputils.h"
static void
gst_vdp_video_remove_pixel_aspect_ratio (GstStructure * structure)
{
gint par_n, par_d;
if (gst_structure_get_fraction (structure, "pixel-aspect-ratio", &par_n,
&par_d)) {
gint width;
gst_structure_get_int (structure, "width", &width);
width = gst_util_uint64_scale_int (width, par_n, par_d);
gst_structure_set (structure, "width", G_TYPE_INT, width, NULL);
gst_structure_remove_field (structure, "pixel-aspect-ratio");
}
}
GstCaps *
gst_vdp_video_to_output_caps (GstCaps * caps)
{
GstCaps *result;
gint i;
result = gst_caps_copy (caps);
for (i = 0; i < gst_caps_get_size (caps); i++) {
GstStructure *structure, *rgb_structure;
structure = gst_caps_get_structure (result, i);
rgb_structure = gst_structure_copy (structure);
gst_structure_set_name (structure, "video/x-vdpau-output");
gst_structure_remove_field (structure, "chroma-type");
gst_vdp_video_remove_pixel_aspect_ratio (structure);
gst_structure_set_name (rgb_structure, "video/x-raw-rgb");
gst_structure_remove_field (structure, "chroma-type");
gst_vdp_video_remove_pixel_aspect_ratio (rgb_structure);
gst_caps_append_structure (result, rgb_structure);
}
return result;
}