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e228430788
This is to allow returning an error that can easily be sent as message to the application if the element needs it. Using this also allow ignoring errors. https://bugzilla.gnome.org/show_bug.cgi?id=766172
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/*
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* Copyright (C) 2014 Collabora Ltd.
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* Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
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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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#ifndef __V4L2_UTILS_H__
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#define __V4L2_UTILS_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_V4L2_ERROR_INIT { NULL, NULL }
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#define GST_V4L2_ERROR(v4l2err,domain,code,msg,dbg) \
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{\
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if (v4l2err) { \
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gchar *_msg = _gst_element_error_printf msg; \
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v4l2err->error = g_error_new_literal (GST_##domain##_ERROR, \
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GST_##domain##_ERROR_##code, _msg); \
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g_free (_msg); \
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v4l2err->dbg_message = _gst_element_error_printf dbg; \
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v4l2err->file = __FILE__; \
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v4l2err->func = GST_FUNCTION; \
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v4l2err->line = __LINE__; \
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} \
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}
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typedef struct _GstV4l2Iterator GstV4l2Iterator;
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typedef struct _GstV4l2Error GstV4l2Error;
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struct _GstV4l2Iterator
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{
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const gchar *device_path;
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const gchar *device_name;
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const gchar *sys_path;
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};
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struct _GstV4l2Error
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{
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GError *error;
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gchar *dbg_message;
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const gchar *file;
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const gchar *func;
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gint line;
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};
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GstV4l2Iterator * gst_v4l2_iterator_new (void);
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gboolean gst_v4l2_iterator_next (GstV4l2Iterator *it);
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void gst_v4l2_iterator_free (GstV4l2Iterator *it);
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const gchar * gst_v4l2_iterator_get_device_path (GstV4l2Iterator *it);
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const gchar * gst_v4l2_iterator_get_device_name (GstV4l2Iterator *it);
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const gchar * gst_v4l2_iterator_get_sys_path (GstV4l2Iterator *it);
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void gst_v4l2_clear_error (GstV4l2Error *error);
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void gst_v4l2_error (gpointer element, GstV4l2Error *error);
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G_END_DECLS
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#endif /* __V4L2_UTILS_H__ */
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