mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-14 20:36:32 +00:00
141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/*
|
|
* Copyright (C) 2017 Collabora Inc.
|
|
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
|
|
* Factored out from gstv4l2mpeg4enc 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.
|
|
*
|
|
*/
|
|
|
|
#include "gstv4l2mpeg4codec.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, "simple"))
|
|
v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE;
|
|
else if (g_str_equal (profile, "advanced-simple"))
|
|
v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE;
|
|
else if (g_str_equal (profile, "core"))
|
|
v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE;
|
|
else if (g_str_equal (profile, "simple-scalable"))
|
|
v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE;
|
|
else if (g_str_equal (profile, "advanced-coding-efficiency"))
|
|
v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY;
|
|
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 V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE:
|
|
return "simple";
|
|
case V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE:
|
|
return "advanced-simple";
|
|
case V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE:
|
|
return "core";
|
|
case V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE:
|
|
return "simple-scalable";
|
|
case V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY:
|
|
return "advanced-coding-efficiency";
|
|
default:
|
|
GST_WARNING ("Unsupported V4L2 profile %i", v4l2_profile);
|
|
break;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gint
|
|
v4l2_level_from_string (const gchar * level)
|
|
{
|
|
gint v4l2_level = -1;
|
|
|
|
if (g_str_equal (level, "0"))
|
|
v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_0;
|
|
else if (g_str_equal (level, "0b"))
|
|
v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B;
|
|
else if (g_str_equal (level, "1"))
|
|
v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_1;
|
|
else if (g_str_equal (level, "2"))
|
|
v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_2;
|
|
else if (g_str_equal (level, "3"))
|
|
v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_3;
|
|
else if (g_str_equal (level, "3b"))
|
|
v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B;
|
|
else if (g_str_equal (level, "4"))
|
|
v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_4;
|
|
else if (g_str_equal (level, "5"))
|
|
v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_5;
|
|
else
|
|
GST_WARNING ("Unsupported level '%s'", level);
|
|
|
|
return v4l2_level;
|
|
}
|
|
|
|
static const gchar *
|
|
v4l2_level_to_string (gint v4l2_level)
|
|
{
|
|
switch (v4l2_level) {
|
|
case V4L2_MPEG_VIDEO_MPEG4_LEVEL_0:
|
|
return "0";
|
|
case V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B:
|
|
return "0b";
|
|
case V4L2_MPEG_VIDEO_MPEG4_LEVEL_1:
|
|
return "1";
|
|
case V4L2_MPEG_VIDEO_MPEG4_LEVEL_2:
|
|
return "2";
|
|
case V4L2_MPEG_VIDEO_MPEG4_LEVEL_3:
|
|
return "3";
|
|
case V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B:
|
|
return "3b";
|
|
case V4L2_MPEG_VIDEO_MPEG4_LEVEL_4:
|
|
return "4";
|
|
case V4L2_MPEG_VIDEO_MPEG4_LEVEL_5:
|
|
return "5";
|
|
default:
|
|
GST_WARNING ("Unsupported V4L2 level %i", v4l2_level);
|
|
break;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
const GstV4l2Codec *
|
|
gst_v4l2_mpeg4_get_codec (void)
|
|
{
|
|
static GstV4l2Codec *codec = NULL;
|
|
if (g_once_init_enter (&codec)) {
|
|
static GstV4l2Codec c;
|
|
c.profile_cid = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE;
|
|
c.profile_to_string = v4l2_profile_to_string;
|
|
c.profile_from_string = v4l2_profile_from_string;
|
|
c.level_cid = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL;
|
|
c.level_to_string = v4l2_level_to_string;
|
|
c.level_from_string = v4l2_level_from_string;
|
|
g_once_init_leave (&codec, &c);
|
|
}
|
|
return codec;
|
|
}
|