mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-10-02 08:42:32 +00:00
v4l2: Add MPEG-2 profile and level support
Add support for V4L2 MPEG-2 decoders reporting supported profiles and levels.
This commit is contained in:
Philipp Zabel
parent
2b1658fca2
commit
5c8d8723d2
5 changed files with 163 additions and 0 deletions
|
|
@ -23,6 +23,7 @@ libgstvideo4linux2_la_SOURCES = gstv4l2.c \
|
|||
gstv4l2h265codec.c \
|
||||
gstv4l2h265enc.c \
|
||||
gstv4l2jpegenc.c \
|
||||
gstv4l2mpeg2codec.c \
|
||||
gstv4l2mpeg4enc.c \
|
||||
gstv4l2mpeg4codec.c \
|
||||
gstv4l2vidorient.c \
|
||||
|
|
|
|||
127
sys/v4l2/gstv4l2mpeg2codec.c
Normal file
127
sys/v4l2/gstv4l2mpeg2codec.c
Normal file
|
|
@ -0,0 +1,127 @@
|
|||
/*
|
||||
* Copyright (C) 2019 Philipp Zabel <philipp.zabel@gmail.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 "gstv4l2mpeg2codec.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_MPEG2_PROFILE_SIMPLE;
|
||||
else if (g_str_equal (profile, "main"))
|
||||
v4l2_profile = V4L2_MPEG_VIDEO_MPEG2_PROFILE_MAIN;
|
||||
else if (g_str_equal (profile, "snr"))
|
||||
v4l2_profile = V4L2_MPEG_VIDEO_MPEG2_PROFILE_SNR_SCALABLE;
|
||||
else if (g_str_equal (profile, "spatial"))
|
||||
v4l2_profile = V4L2_MPEG_VIDEO_MPEG2_PROFILE_SPATIALLY_SCALABLE;
|
||||
else if (g_str_equal (profile, "high"))
|
||||
v4l2_profile = V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH;
|
||||
else if (g_str_equal (profile, "multiview"))
|
||||
v4l2_profile = V4L2_MPEG_VIDEO_MPEG2_PROFILE_MULTIVIEW;
|
||||
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_MPEG2_PROFILE_SIMPLE:
|
||||
return "simple";
|
||||
case V4L2_MPEG_VIDEO_MPEG2_PROFILE_MAIN:
|
||||
return "main";
|
||||
case V4L2_MPEG_VIDEO_MPEG2_PROFILE_SNR_SCALABLE:
|
||||
return "snr";
|
||||
case V4L2_MPEG_VIDEO_MPEG2_PROFILE_SPATIALLY_SCALABLE:
|
||||
return "spatial";
|
||||
case V4L2_MPEG_VIDEO_MPEG2_PROFILE_HIGH:
|
||||
return "high";
|
||||
case V4L2_MPEG_VIDEO_MPEG2_PROFILE_MULTIVIEW:
|
||||
return "multiview";
|
||||
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, "low"))
|
||||
v4l2_level = V4L2_MPEG_VIDEO_MPEG2_LEVEL_LOW;
|
||||
else if (g_str_equal (level, "main"))
|
||||
v4l2_level = V4L2_MPEG_VIDEO_MPEG2_LEVEL_MAIN;
|
||||
else if (g_str_equal (level, "high-1440"))
|
||||
v4l2_level = V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH_1440;
|
||||
else if (g_str_equal (level, "high"))
|
||||
v4l2_level = V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH;
|
||||
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_MPEG2_LEVEL_LOW:
|
||||
return "low";
|
||||
case V4L2_MPEG_VIDEO_MPEG2_LEVEL_MAIN:
|
||||
return "main";
|
||||
case V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH_1440:
|
||||
return "high-1440";
|
||||
case V4L2_MPEG_VIDEO_MPEG2_LEVEL_HIGH:
|
||||
return "high";
|
||||
default:
|
||||
GST_WARNING ("Unsupported V4L2 level %i", v4l2_level);
|
||||
break;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const GstV4l2Codec *
|
||||
gst_v4l2_mpeg2_get_codec (void)
|
||||
{
|
||||
static GstV4l2Codec *codec = NULL;
|
||||
if (g_once_init_enter (&codec)) {
|
||||
static GstV4l2Codec c;
|
||||
c.profile_cid = V4L2_CID_MPEG_VIDEO_MPEG2_PROFILE;
|
||||
c.profile_to_string = v4l2_profile_to_string;
|
||||
c.profile_from_string = v4l2_profile_from_string;
|
||||
c.level_cid = V4L2_CID_MPEG_VIDEO_MPEG2_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;
|
||||
}
|
||||
32
sys/v4l2/gstv4l2mpeg2codec.h
Normal file
32
sys/v4l2/gstv4l2mpeg2codec.h
Normal file
|
|
@ -0,0 +1,32 @@
|
|||
/*
|
||||
* Copyright (C) 2019 Philipp Zabel <philipp.zabel@gmail.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.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef __GST_V4L2_MPEG2_CODEC_H__
|
||||
#define __GST_V4L2_MPEG2_CODEC_H__
|
||||
|
||||
#include "gstv4l2codec.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
const GstV4l2Codec * gst_v4l2_mpeg2_get_codec (void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif
|
||||
|
|
@ -34,6 +34,7 @@
|
|||
|
||||
#include "gstv4l2h264codec.h"
|
||||
#include "gstv4l2h265codec.h"
|
||||
#include "gstv4l2mpeg2codec.h"
|
||||
#include "gstv4l2mpeg4codec.h"
|
||||
#include "gstv4l2vp8codec.h"
|
||||
#include "gstv4l2vp9codec.h"
|
||||
|
|
@ -1085,6 +1086,7 @@ G_STMT_START { \
|
|||
|
||||
if (mpegversion == 2) {
|
||||
SET_META ("MPEG2");
|
||||
cdata->codec = gst_v4l2_mpeg2_get_codec ();
|
||||
} else {
|
||||
SET_META ("MPEG4");
|
||||
cdata->codec = gst_v4l2_mpeg4_get_codec ();
|
||||
|
|
|
|||
|
|
@ -20,6 +20,7 @@ v4l2_sources = [
|
|||
'gstv4l2h265codec.c',
|
||||
'gstv4l2h265enc.c',
|
||||
'gstv4l2jpegenc.c',
|
||||
'gstv4l2mpeg2codec.c',
|
||||
'gstv4l2mpeg4codec.c',
|
||||
'gstv4l2mpeg4enc.c',
|
||||
'gstv4l2vidorient.c',
|
||||
|
|
|
|||
Loading…
Reference in a new issue