gstreamer/sys/v4l2/gstv4l2vp9codec.c

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/*
* Copyright (C) 2017 Collabora Inc.
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
* Factored out from gstv4l2vp9enc by Philippe Normand <philn@igalia.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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstv4l2vp9codec.h"
#include <gst/gst.h>
#include "ext/v4l2-controls.h"
static gint
v4l2_profile_from_string (const gchar * profile)
{
gint v4l2_profile = -1;
if (g_str_equal (profile, "0"))
v4l2_profile = 0;
else if (g_str_equal (profile, "1"))
v4l2_profile = 1;
else if (g_str_equal (profile, "2"))
v4l2_profile = 2;
else if (g_str_equal (profile, "3"))
v4l2_profile = 3;
else
GST_WARNING ("Unsupported profile string '%s'", profile);
return v4l2_profile;
}
static const gchar *
v4l2_profile_to_string (gint v4l2_profile)
{
switch (v4l2_profile) {
case 0:
return "0";
case 1:
return "1";
case 2:
return "2";
case 3:
return "3";
default:
GST_WARNING ("Unsupported V4L2 profile %i", v4l2_profile);
break;
}
return NULL;
}
const GstV4l2Codec *
gst_v4l2_vp9_get_codec (void)
{
static GstV4l2Codec *codec = NULL;
if (g_once_init_enter (&codec)) {
static GstV4l2Codec c;
c.profile_cid = V4L2_CID_MPEG_VIDEO_VPX_PROFILE;
c.profile_to_string = v4l2_profile_to_string;
c.profile_from_string = v4l2_profile_from_string;
g_once_init_leave (&codec, &c);
}
return codec;
}