mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 01:00:37 +00:00
27fedbb352
Remove internal folders and put all code inside the main plugin folder. Also fixes some building warnings.
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/* GStreamer
|
|
* Copyright (C) <2010> Thiago Santos <thiago.sousa.santos@collabora.co.uk>
|
|
*
|
|
* gstopencvutils.c: miscellaneous utility functions
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "gstopencvutils.h"
|
|
|
|
static gboolean
|
|
gst_opencv_get_ipl_depth_and_channels (GstStructure * structure,
|
|
gint * ipldepth, gint * channels, GError ** err)
|
|
{
|
|
gint depth, bpp;
|
|
|
|
if (!gst_structure_get_int (structure, "depth", &depth) ||
|
|
!gst_structure_get_int (structure, "bpp", &bpp)) {
|
|
g_set_error (err, GST_CORE_ERROR, GST_CORE_ERROR_NEGOTIATION,
|
|
"No depth/bpp in caps");
|
|
return FALSE;
|
|
}
|
|
|
|
if (depth != bpp) {
|
|
g_set_error (err, GST_CORE_ERROR, GST_CORE_ERROR_NEGOTIATION,
|
|
"Depth and bpp should be equal");
|
|
return FALSE;
|
|
}
|
|
|
|
if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
|
|
*channels = 3;
|
|
} else if (gst_structure_has_name (structure, "video/x-raw-gray")) {
|
|
*channels = 1;
|
|
} else {
|
|
g_set_error (err, GST_CORE_ERROR, GST_CORE_ERROR_NEGOTIATION,
|
|
"Unsupported caps %s", gst_structure_get_name (structure));
|
|
return FALSE;
|
|
}
|
|
|
|
if (depth / *channels == 8) {
|
|
/* TODO signdness? */
|
|
*ipldepth = IPL_DEPTH_8U;
|
|
} else if (depth / *channels == 16) {
|
|
*ipldepth = IPL_DEPTH_16U;
|
|
} else {
|
|
g_set_error (err, GST_CORE_ERROR, GST_CORE_ERROR_NEGOTIATION,
|
|
"Unsupported depth/channels %d/%d", depth, *channels);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gst_opencv_parse_iplimage_params_from_structure (GstStructure * structure,
|
|
gint * width, gint * height, gint * ipldepth, gint * channels,
|
|
GError ** err)
|
|
{
|
|
if (!gst_opencv_get_ipl_depth_and_channels (structure, ipldepth, channels,
|
|
err)) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (!gst_structure_get_int (structure, "width", width) ||
|
|
!gst_structure_get_int (structure, "height", height)) {
|
|
g_set_error (err, GST_CORE_ERROR, GST_CORE_ERROR_NEGOTIATION,
|
|
"No width/height in caps");
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
gst_opencv_parse_iplimage_params_from_caps (GstCaps * caps, gint * width,
|
|
gint * height, gint * ipldepth, gint * channels, GError ** err)
|
|
{
|
|
return
|
|
gst_opencv_parse_iplimage_params_from_structure (gst_caps_get_structure
|
|
(caps, 0), width, height, ipldepth, channels, err);
|
|
}
|