1 /* GStreamer Intel MSDK plugin
2 * Copyright (c) 2018, Intel Corporation
3 *
4 * Author: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
5 *
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 *
14 * 2. Redistributions in binary form must reproduce the above copyright notice,
15 * this list of conditions and the following disclaimer in the documentation
16 * and/or other materials provided with the distribution.
17 *
18 * 3. Neither the name of the copyright holder nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
24 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
26 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGDECE
31 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
32 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #ifdef HAVE_CONFIG_H
36 # include <config.h>
37 #endif
38
39 #include "gstmsdkmpeg2dec.h"
40
41 GST_DEBUG_CATEGORY_EXTERN (gst_msdkmpeg2dec_debug);
42 #define GST_CAT_DEFAULT gst_msdkmpeg2dec_debug
43
44 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
45 GST_PAD_SINK,
46 GST_PAD_ALWAYS,
47 GST_STATIC_CAPS ("video/mpeg, "
48 "width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
49 "mpegversion = (int) 2, " "systemstream = (boolean) false")
50 );
51
52 #define gst_msdkmpeg2dec_parent_class parent_class
53 G_DEFINE_TYPE (GstMsdkMPEG2Dec, gst_msdkmpeg2dec, GST_TYPE_MSDKDEC);
54
55 static gboolean
gst_msdkmpeg2dec_configure(GstMsdkDec * decoder)56 gst_msdkmpeg2dec_configure (GstMsdkDec * decoder)
57 {
58 GstMsdkMPEG2Dec *mpeg2dec = GST_MSDKMPEG2DEC (decoder);
59 decoder->param.mfx.CodecId = MFX_CODEC_MPEG2;
60
61 /* This is a deprecated attribute in msdk-2017 version, but some
62 * customers still using this for low-latency streaming of non-b-frame
63 * encoded streams */
64 decoder->param.mfx.DecodedOrder = mpeg2dec->output_order;
65 return TRUE;
66 }
67
68 static void
gst_msdkdec_mpeg2_set_property(GObject * object,guint prop_id,const GValue * value,GParamSpec * pspec)69 gst_msdkdec_mpeg2_set_property (GObject * object, guint prop_id,
70 const GValue * value, GParamSpec * pspec)
71 {
72 GstMsdkMPEG2Dec *thiz = GST_MSDKMPEG2DEC (object);
73 GstState state;
74
75 GST_OBJECT_LOCK (thiz);
76 state = GST_STATE (thiz);
77
78 if (!gst_msdkdec_prop_check_state (state, pspec)) {
79 GST_WARNING_OBJECT (thiz, "setting property in wrong state");
80 GST_OBJECT_UNLOCK (thiz);
81 return;
82 }
83 switch (prop_id) {
84 case GST_MSDKDEC_PROP_OUTPUT_ORDER:
85 thiz->output_order = g_value_get_enum (value);
86 break;
87 default:
88 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
89 break;
90 }
91 GST_OBJECT_UNLOCK (thiz);
92 return;
93 }
94
95 static void
gst_msdkdec_mpeg2_get_property(GObject * object,guint prop_id,GValue * value,GParamSpec * pspec)96 gst_msdkdec_mpeg2_get_property (GObject * object, guint prop_id, GValue * value,
97 GParamSpec * pspec)
98 {
99 GstMsdkMPEG2Dec *thiz = GST_MSDKMPEG2DEC (object);
100
101 GST_OBJECT_LOCK (thiz);
102 switch (prop_id) {
103 case GST_MSDKDEC_PROP_OUTPUT_ORDER:
104 g_value_set_enum (value, thiz->output_order);
105 break;
106 default:
107 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
108 break;
109 }
110 GST_OBJECT_UNLOCK (thiz);
111 }
112
113 static void
gst_msdkmpeg2dec_class_init(GstMsdkMPEG2DecClass * klass)114 gst_msdkmpeg2dec_class_init (GstMsdkMPEG2DecClass * klass)
115 {
116 GObjectClass *gobject_class;
117 GstElementClass *element_class;
118 GstMsdkDecClass *decoder_class;
119
120 gobject_class = G_OBJECT_CLASS (klass);
121 element_class = GST_ELEMENT_CLASS (klass);
122 decoder_class = GST_MSDKDEC_CLASS (klass);
123
124 gobject_class->set_property = gst_msdkdec_mpeg2_set_property;
125 gobject_class->get_property = gst_msdkdec_mpeg2_get_property;
126
127 decoder_class->configure = GST_DEBUG_FUNCPTR (gst_msdkmpeg2dec_configure);
128
129 gst_element_class_set_static_metadata (element_class,
130 "Intel MSDK MPEG2 decoder",
131 "Codec/Decoder/Video/Hardware",
132 "MPEG2 video decoder based on Intel Media SDK",
133 "Sreerenj Balachandran <sreerenj.balachandran@intel.com>");
134
135 gst_msdkdec_prop_install_output_oder_property (gobject_class);
136
137 gst_element_class_add_static_pad_template (element_class, &sink_factory);
138 }
139
140 static void
gst_msdkmpeg2dec_init(GstMsdkMPEG2Dec * thiz)141 gst_msdkmpeg2dec_init (GstMsdkMPEG2Dec * thiz)
142 {
143 thiz->output_order = PROP_OUTPUT_ORDER_DEFAULT;
144 }
145