2 * Copyright (C) 2010 Ole André Vadla Ravnås <oravnas@cisco.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
24 #include "vth264encbin.h"
27 #include <gst/video/video.h>
29 #define VT_H264_ENC_BIN_DEFAULT_BITRATE 768
31 GST_DEBUG_CATEGORY_STATIC (gst_vt_h264_enc_bin_debug);
32 #define GST_CAT_DEFAULT gst_vt_h264_enc_bin_debug
42 H264PARSE_OUTPUT_FORMAT_AVC_SAMPLE = 0,
43 H264PARSE_OUTPUT_FORMAT_BYTE_STREAM = 1,
44 H264PARSE_OUTPUT_FORMAT_INPUT = 2
47 static GstStaticPadTemplate vth264encbin_sink_template =
48 GST_STATIC_PAD_TEMPLATE ("sink",
51 GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("NV12"))
54 static GstStaticPadTemplate vth264encbin_src_template =
55 GST_STATIC_PAD_TEMPLATE ("src",
58 GST_STATIC_CAPS ("video/x-h264, stream-format = (string) byte-stream"));
60 #define TAA_VT_H264_ENC_BIN_GET_PRIVATE(obj) \
61 (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_VT_H264_ENC_BIN, \
62 GstVTH264EncBinPrivate))
64 struct _GstVTH264EncBinPrivate
70 GST_BOILERPLATE (GstVTH264EncBin, gst_vt_h264_enc_bin, GstBin, GST_TYPE_BIN);
73 gst_vt_h264_enc_bin_base_init (gpointer gclass)
75 GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
77 gst_element_class_set_details_simple (element_class,
80 "VideoToolbox H.264 encoder bin",
81 "Ole André Vadla Ravnås <oravnas@cisco.com>");
83 gst_element_class_add_static_pad_template (element_class,
84 &vth264encbin_sink_template);
85 gst_element_class_add_static_pad_template (element_class,
86 &vth264encbin_src_template);
90 gst_vt_h264_enc_bin_init (GstVTH264EncBin * self, GstVTH264EncBinClass * gclass)
92 GstVTH264EncBinPrivate *priv;
93 GstPad *encoder_sinkpad, *parser_srcpad, *ghost_pad;
95 self->priv = priv = TAA_VT_H264_ENC_BIN_GET_PRIVATE (self);
97 priv->encoder = gst_element_factory_make ("vtenc_h264", "encoder");
98 priv->parser = gst_element_factory_make ("h264parse", "parser");
99 gst_bin_add_many (GST_BIN_CAST (self), priv->encoder, priv->parser, NULL);
100 gst_element_link (priv->encoder, priv->parser);
102 encoder_sinkpad = gst_element_get_static_pad (priv->encoder, "sink");
103 ghost_pad = gst_ghost_pad_new_from_template ("sink", encoder_sinkpad,
104 gst_static_pad_template_get (&vth264encbin_sink_template));
105 gst_object_unref (encoder_sinkpad);
106 gst_element_add_pad (GST_ELEMENT_CAST (self), ghost_pad);
108 parser_srcpad = gst_element_get_static_pad (priv->parser, "src");
109 ghost_pad = gst_ghost_pad_new_from_template ("src", parser_srcpad,
110 gst_static_pad_template_get (&vth264encbin_src_template));
111 gst_object_unref (parser_srcpad);
112 gst_element_add_pad (GST_ELEMENT_CAST (self), ghost_pad);
114 g_object_set (priv->encoder, "usage", 6, NULL);
116 g_object_set (priv->parser,
117 "output-format", H264PARSE_OUTPUT_FORMAT_BYTE_STREAM,
118 "split-packetized", TRUE, NULL);
122 gst_vt_h264_enc_bin_get_property (GObject * obj, guint prop_id,
123 GValue * value, GParamSpec * pspec)
125 GstVTH264EncBin *self = GST_VT_H264_ENC_BIN_CAST (obj);
129 g_object_get_property (G_OBJECT (self->priv->encoder),
130 g_param_spec_get_name (pspec), value);
133 G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, prop_id, pspec);
139 gst_vt_h264_enc_bin_set_property (GObject * obj, guint prop_id,
140 const GValue * value, GParamSpec * pspec)
142 GstVTH264EncBin *self = GST_VT_H264_ENC_BIN_CAST (obj);
146 g_object_set_property (G_OBJECT (self->priv->encoder),
147 g_param_spec_get_name (pspec), value);
150 G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, prop_id, pspec);
156 gst_vt_h264_enc_bin_class_init (GstVTH264EncBinClass * klass)
158 GObjectClass *gobject_class = (GObjectClass *) klass;
160 gobject_class->get_property = gst_vt_h264_enc_bin_get_property;
161 gobject_class->set_property = gst_vt_h264_enc_bin_set_property;
163 g_type_class_add_private (klass, sizeof (GstVTH264EncBinPrivate));
165 g_object_class_install_property (gobject_class, PROP_BITRATE,
166 g_param_spec_uint ("bitrate", "Bitrate",
167 "Target video bitrate in kbps",
168 1, G_MAXUINT, VT_H264_ENC_BIN_DEFAULT_BITRATE,
169 G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
171 GST_DEBUG_CATEGORY_INIT (gst_vt_h264_enc_bin_debug,
172 "vth264encbin", 0, "VideoToolbox H.264 encoder bin");