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141 lines
4.1 KiB
C
141 lines
4.1 KiB
C
/*
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* GStreamer
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* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "gstvdpvideobuffer.h"
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#include "gstvdputils.h"
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GstCaps *
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gst_vdp_video_to_yuv_caps (GstCaps * caps, GstVdpDevice * device)
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{
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GstCaps *new_caps, *allowed_caps, *result;
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gint i;
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GstStructure *structure;
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new_caps = gst_caps_new_empty ();
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for (i = 0; i < gst_caps_get_size (caps); i++) {
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gint chroma_type;
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GSList *fourcc = NULL, *iter;
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structure = gst_caps_get_structure (caps, i);
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if (gst_structure_get_int (structure, "chroma-type", &chroma_type)) {
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/* calculate fourcc from chroma_type */
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for (i = 0; i < G_N_ELEMENTS (formats); i++) {
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if (formats[i].chroma_type == chroma_type) {
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fourcc = g_slist_append (fourcc, GINT_TO_POINTER (formats[i].fourcc));
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}
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}
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} else {
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for (i = 0; i < G_N_ELEMENTS (formats); i++) {
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fourcc = g_slist_append (fourcc, GINT_TO_POINTER (formats[i].fourcc));
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}
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}
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for (iter = fourcc; iter; iter = iter->next) {
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GstStructure *new_struct = gst_structure_copy (structure);
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gst_structure_set_name (new_struct, "video/x-raw-yuv");
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gst_structure_remove_field (new_struct, "chroma-type");
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gst_structure_set (new_struct, "format", GST_TYPE_FOURCC,
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GPOINTER_TO_INT (iter->data), NULL);
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gst_caps_append_structure (new_caps, new_struct);
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}
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g_slist_free (fourcc);
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}
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structure = gst_caps_get_structure (caps, 0);
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if (device) {
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allowed_caps = gst_vdp_video_buffer_get_allowed_yuv_caps (device);
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result = gst_caps_intersect (new_caps, allowed_caps);
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gst_caps_unref (new_caps);
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gst_caps_unref (allowed_caps);
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} else
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result = new_caps;
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return result;
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}
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GstCaps *
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gst_vdp_yuv_to_video_caps (GstCaps * caps, GstVdpDevice * device)
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{
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GstCaps *new_caps, *result;
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gint i;
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new_caps = gst_caps_copy (caps);
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for (i = 0; i < gst_caps_get_size (new_caps); i++) {
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GstStructure *structure = gst_caps_get_structure (new_caps, i);
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guint32 fourcc;
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if (gst_structure_get_fourcc (structure, "format", &fourcc)) {
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gint chroma_type = -1;
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/* calculate chroma type from fourcc */
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for (i = 0; i < G_N_ELEMENTS (formats); i++) {
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if (formats[i].fourcc == fourcc) {
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chroma_type = formats[i].chroma_type;
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break;
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}
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}
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gst_structure_remove_field (structure, "format");
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gst_structure_set (structure, "chroma-type", G_TYPE_INT, chroma_type,
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NULL);
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} else
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gst_structure_set (structure, "chroma-type", GST_TYPE_INT_RANGE, 0, 2,
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NULL);
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gst_structure_set_name (structure, "video/x-vdpau-video");
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}
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if (device) {
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GstCaps *allowed_caps;
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allowed_caps = gst_vdp_video_buffer_get_allowed_video_caps (device);
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result = gst_caps_intersect (new_caps, allowed_caps);
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gst_caps_unref (new_caps);
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gst_caps_unref (allowed_caps);
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} else
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result = new_caps;
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return result;
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}
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GstCaps *
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gst_vdp_video_to_output_caps (GstCaps * caps)
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{
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GstCaps *result;
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gint i;
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result = gst_caps_copy (caps);
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for (i = 0; i < gst_caps_get_size (result); i++) {
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GstStructure *structure = gst_caps_get_structure (result, i);
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gst_structure_set_name (structure, "video/x-vdpau-output");
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gst_structure_remove_field (structure, "chroma-type");
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gst_structure_remove_field (structure, "interlaced");
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}
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return result;
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}
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