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6ce195e9d1
There used to be some profile/level support in encoders. This code was moved to GstV4l2Codecs and is now also used for decoders. The caps templates for the H.264, H.265, MPEG4, VP8 and VP9 encoders and decoders should now reflect the profiles and levels advertised by the kernel.
141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/*
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* Copyright (C) 2017 Collabora Inc.
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* Author: Nicolas Dufresne <nicolas.dufresne@collabora.com>
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* Factored out from gstv4l2mpeg4enc by Philippe Normand <philn@igalia.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., 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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#include "gstv4l2mpeg4codec.h"
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#include <gst/gst.h>
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#include "ext/v4l2-controls.h"
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static gint
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v4l2_profile_from_string (const gchar * profile)
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{
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gint v4l2_profile = -1;
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if (g_str_equal (profile, "simple"))
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v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE;
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else if (g_str_equal (profile, "advanced-simple"))
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v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE;
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else if (g_str_equal (profile, "core"))
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v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE;
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else if (g_str_equal (profile, "simple-scalable"))
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v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE;
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else if (g_str_equal (profile, "advanced-coding-efficiency"))
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v4l2_profile = V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY;
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else
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GST_WARNING ("Unsupported profile string '%s'", profile);
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return v4l2_profile;
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}
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static const gchar *
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v4l2_profile_to_string (gint v4l2_profile)
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{
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switch (v4l2_profile) {
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case V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE:
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return "simple";
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case V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE:
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return "advanced-simple";
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case V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE:
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return "core";
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case V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE:
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return "simple-scalable";
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case V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY:
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return "advanced-coding-efficiency";
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default:
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GST_WARNING ("Unsupported V4L2 profile %i", v4l2_profile);
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break;
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}
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return NULL;
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}
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static gint
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v4l2_level_from_string (const gchar * level)
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{
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gint v4l2_level = -1;
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if (g_str_equal (level, "0"))
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v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_0;
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else if (g_str_equal (level, "0b"))
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v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B;
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else if (g_str_equal (level, "1"))
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v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_1;
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else if (g_str_equal (level, "2"))
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v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_2;
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else if (g_str_equal (level, "3"))
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v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_3;
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else if (g_str_equal (level, "3b"))
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v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B;
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else if (g_str_equal (level, "4"))
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v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_4;
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else if (g_str_equal (level, "5"))
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v4l2_level = V4L2_MPEG_VIDEO_MPEG4_LEVEL_5;
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else
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GST_WARNING ("Unsupported level '%s'", level);
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return v4l2_level;
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}
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static const gchar *
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v4l2_level_to_string (gint v4l2_level)
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{
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switch (v4l2_level) {
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case V4L2_MPEG_VIDEO_MPEG4_LEVEL_0:
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return "0";
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case V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B:
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return "0b";
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case V4L2_MPEG_VIDEO_MPEG4_LEVEL_1:
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return "1";
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case V4L2_MPEG_VIDEO_MPEG4_LEVEL_2:
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return "2";
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case V4L2_MPEG_VIDEO_MPEG4_LEVEL_3:
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return "3";
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case V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B:
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return "3b";
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case V4L2_MPEG_VIDEO_MPEG4_LEVEL_4:
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return "4";
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case V4L2_MPEG_VIDEO_MPEG4_LEVEL_5:
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return "5";
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default:
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GST_WARNING ("Unsupported V4L2 level %i", v4l2_level);
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break;
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}
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return NULL;
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}
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const GstV4l2Codec *
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gst_v4l2_mpeg4_get_codec (void)
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{
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static GstV4l2Codec *codec = NULL;
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if (g_once_init_enter (&codec)) {
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static GstV4l2Codec c;
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c.profile_cid = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE;
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c.profile_to_string = v4l2_profile_to_string;
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c.profile_from_string = v4l2_profile_from_string;
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c.level_cid = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL;
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c.level_to_string = v4l2_level_to_string;
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c.level_from_string = v4l2_level_from_string;
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g_once_init_leave (&codec, &c);
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}
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return codec;
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}
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