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/*
* gstvaapiencode_mpeg2.c - VA-API MPEG2 encoder
*
* Copyright (C) 2012-2014 Intel Corporation
* Author: Guangxin Xu <guangxin.xu@intel.com>
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* SECTION:element-vaapimpeg2enc
* @short_description: A VA-API based MPEG2 video encoder
*
* Encodes raw video streams into MPEG2 bitstreams.
*
* ## Example launch line
*
* |[
* gst-launch-1.0 -ev videotestsrc num-buffers=60 ! timeoverlay ! vaapimpeg2enc ! matroskamux ! filesink location=test.mkv
* ]|
*/
#include "gstcompat.h"
#include <gst/vaapi/gstvaapidisplay.h>
#include <gst/vaapi/gstvaapiencoder_mpeg2.h>
#include <gst/vaapi/gstvaapiutils_mpeg2.h>
#include "gstvaapiencode_mpeg2.h"
#include "gstvaapipluginutil.h"
#include "gstvaapivideomemory.h"
#define GST_PLUGIN_NAME "vaapimpeg2enc"
#define GST_PLUGIN_DESC "A VA-API based MPEG-2 video encoder"
GST_DEBUG_CATEGORY_STATIC (gst_vaapi_mpeg2_encode_debug);
#define GST_CAT_DEFAULT gst_vaapi_mpeg2_encode_debug
#define GST_CODEC_CAPS \
"video/mpeg, mpegversion = (int) 2, " \
"systemstream = (boolean) false"
#define EXTRA_FORMATS {}
/* mpeg2 encode */
GST_VAAPI_ENCODE_REGISTER_TYPE (mpeg2, MPEG2, Mpeg2, EXTRA_FORMATS,
gst_vaapi_utils_mpeg2_get_profile_string);
static void
gst_vaapiencode_mpeg2_init (GstVaapiEncodeMpeg2 * encode)
{
/* nothing to do here */
}
static void
gst_vaapiencode_mpeg2_finalize (GObject * object)
{
G_OBJECT_CLASS (gst_vaapiencode_mpeg2_parent_class)->finalize (object);
}
static GstCaps *
gst_vaapiencode_mpeg2_get_caps (GstVaapiEncode * base_encode)
{
GstCaps *caps;
caps = gst_caps_from_string (GST_CODEC_CAPS);
/* XXX: update profile and level information */
return caps;
}
static GstVaapiEncoder *
gst_vaapiencode_mpeg2_alloc_encoder (GstVaapiEncode * base,
GstVaapiDisplay * display)
{
return gst_vaapi_encoder_mpeg2_new (display);
}
static void
gst_vaapiencode_mpeg2_class_init (GstVaapiEncodeMpeg2Class * klass,
gpointer data)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
GstElementClass *const element_class = GST_ELEMENT_CLASS (klass);
GstVaapiEncodeClass *const encode_class = GST_VAAPIENCODE_CLASS (klass);
GstCaps *sink_caps = ((GstVaapiEncodeInitData *) data)->sink_caps;
GstCaps *src_caps = ((GstVaapiEncodeInitData *) data)->src_caps;
GstPadTemplate *templ;
GstCaps *static_caps;
gpointer encoder_class;
object_class->finalize = gst_vaapiencode_mpeg2_finalize;
object_class->set_property = gst_vaapiencode_set_property_subclass;
object_class->get_property = gst_vaapiencode_get_property_subclass;
encode_class->get_caps = gst_vaapiencode_mpeg2_get_caps;
encode_class->alloc_encoder = gst_vaapiencode_mpeg2_alloc_encoder;
gst_element_class_set_static_metadata (element_class,
"VA-API MPEG-2 encoder",
"Codec/Encoder/Video/Hardware",
GST_PLUGIN_DESC, "Guangxin Xu <guangxin.xu@intel.com>");
/* sink pad */
g_assert (sink_caps);
static_caps = gst_caps_from_string (GST_VAAPI_ENCODE_STATIC_SINK_CAPS);
templ =
gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, sink_caps);
gst_pad_template_set_documentation_caps (templ, static_caps);
gst_element_class_add_pad_template (element_class, templ);
gst_caps_unref (static_caps);
gst_caps_unref (sink_caps);
/* src pad */
g_assert (src_caps);
static_caps = gst_caps_from_string (GST_CODEC_CAPS);
templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, src_caps);
gst_pad_template_set_documentation_caps (templ, static_caps);
gst_element_class_add_pad_template (element_class, templ);
gst_caps_unref (static_caps);
gst_caps_unref (src_caps);
encoder_class = g_type_class_ref (GST_TYPE_VAAPI_ENCODER_MPEG2);
g_assert (encoder_class);
gst_vaapiencode_class_install_properties (encode_class, encoder_class);
g_type_class_unref (encoder_class);
}
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