gstreamer/sys/v4l2/gstv4l2mpeg4enc.c
Philippe Normand 6ce195e9d1 v4l2: Profile and level probing support for encoders and decoders
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.
2019-06-05 10:23:40 +01:00

121 lines
3.4 KiB
C

/*
* Copyright (C) 2017 Collabora Inc.
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.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 <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include "gstv4l2object.h"
#include "gstv4l2mpeg4enc.h"
#include "gstv4l2mpeg4codec.h"
#include <string.h>
#include <gst/gst-i18n-plugin.h>
GST_DEBUG_CATEGORY_STATIC (gst_v4l2_mpeg4_enc_debug);
#define GST_CAT_DEFAULT gst_v4l2_mpeg4_enc_debug
static GstStaticCaps src_template_caps =
GST_STATIC_CAPS ("video/mpeg, mpegversion=(int)4, systemstream=(boolean)FALSE");
enum
{
PROP_0,
V4L2_STD_OBJECT_PROPS,
/* TODO */
};
#define gst_v4l2_mpeg4_enc_parent_class parent_class
G_DEFINE_TYPE (GstV4l2Mpeg4Enc, gst_v4l2_mpeg4_enc, GST_TYPE_V4L2_VIDEO_ENC);
static void
gst_v4l2_mpeg4_enc_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
/* TODO */
}
static void
gst_v4l2_mpeg4_enc_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
/* TODO */
}
static void
gst_v4l2_mpeg4_enc_init (GstV4l2Mpeg4Enc * self)
{
}
static void
gst_v4l2_mpeg4_enc_class_init (GstV4l2Mpeg4EncClass * klass)
{
GstElementClass *element_class;
GObjectClass *gobject_class;
GstV4l2VideoEncClass *baseclass;
parent_class = g_type_class_peek_parent (klass);
element_class = (GstElementClass *) klass;
gobject_class = (GObjectClass *) klass;
baseclass = (GstV4l2VideoEncClass *) (klass);
GST_DEBUG_CATEGORY_INIT (gst_v4l2_mpeg4_enc_debug, "v4l2mpeg4enc", 0,
"V4L2 MPEG4 Encoder");
gst_element_class_set_static_metadata (element_class,
"V4L2 MPEG4 Encoder",
"Codec/Encoder/Video/Hardware",
"Encode MPEG4 video streams via V4L2 API",
"Nicolas Dufresne <nicolas.dufresne@collabora.com");
gobject_class->set_property =
GST_DEBUG_FUNCPTR (gst_v4l2_mpeg4_enc_set_property);
gobject_class->get_property =
GST_DEBUG_FUNCPTR (gst_v4l2_mpeg4_enc_get_property);
baseclass->codec_name = "MPEG4";
}
/* Probing functions */
gboolean
gst_v4l2_is_mpeg4_enc (GstCaps * sink_caps, GstCaps * src_caps)
{
return gst_v4l2_is_video_enc (sink_caps, src_caps,
gst_static_caps_get (&src_template_caps));
}
void
gst_v4l2_mpeg4_enc_register (GstPlugin * plugin, const gchar * basename,
const gchar * device_path, gint video_fd, GstCaps * sink_caps,
GstCaps * src_caps)
{
const GstV4l2Codec *codec = gst_v4l2_mpeg4_get_codec ();
gst_v4l2_video_enc_register (plugin, GST_TYPE_V4L2_MPEG4_ENC,
"mpeg4", basename, device_path, codec, video_fd, sink_caps,
gst_static_caps_get (&src_template_caps), src_caps);
}