1 /* GStreamer Intel MSDK plugin
2 * Copyright (c) 2016, Intel Corporation
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGDECE
28 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #ifdef HAVE_CONFIG_H
33 # include <config.h>
34 #endif
35
36 #include <mfxstructures.h>
37 #include <mfxjpeg.h>
38
39 #include "gstmsdkmjpegdec.h"
40
41 #include <gst/pbutils/pbutils.h>
42
43 GST_DEBUG_CATEGORY_EXTERN (gst_msdkmjpegdec_debug);
44 #define GST_CAT_DEFAULT gst_msdkmjpegdec_debug
45
46 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
47 GST_PAD_SINK,
48 GST_PAD_ALWAYS,
49 GST_STATIC_CAPS ("image/jpeg, "
50 "width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], parsed = true ")
51 );
52
53 #define gst_msdkmjpegdec_parent_class parent_class
54 G_DEFINE_TYPE (GstMsdkMJPEGDec, gst_msdkmjpegdec, GST_TYPE_MSDKDEC);
55
56 static gboolean
gst_msdkmjpegdec_configure(GstMsdkDec * decoder)57 gst_msdkmjpegdec_configure (GstMsdkDec * decoder)
58 {
59 decoder->param.mfx.CodecId = MFX_CODEC_JPEG;
60
61 /* HACK to make sure MSDK won't crash while handling non-interleaved samples */
62 /* setting MFX_SCANTYPE_UNKNOWN (== 0) causing issues for
63 non-interleaved samples. Usage of MFXVideoDECODE_DecodeHeader
64 also doesn't seems to fix the issue. But even if we hardcode
65 the InterleaveDec to MFX_SCANTYPE_NONINTERLEAVED, msdk seems to be taking care
66 of Interleaved samples, so let's hardcode it for now */
67 decoder->param.mfx.InterleavedDec = MFX_SCANTYPE_NONINTERLEAVED;
68 return TRUE;
69 }
70
71 static void
gst_msdkmjpegdec_class_init(GstMsdkMJPEGDecClass * klass)72 gst_msdkmjpegdec_class_init (GstMsdkMJPEGDecClass * klass)
73 {
74 GstElementClass *element_class;
75 GstMsdkDecClass *decoder_class;
76
77 element_class = GST_ELEMENT_CLASS (klass);
78 decoder_class = GST_MSDKDEC_CLASS (klass);
79
80 decoder_class->configure = GST_DEBUG_FUNCPTR (gst_msdkmjpegdec_configure);
81
82 gst_element_class_set_static_metadata (element_class,
83 "Intel MSDK MJPEG decoder",
84 "Codec/Decoder/Video/Hardware",
85 "MJPEG video decoder based on Intel Media SDK",
86 "Scott D Phillips <scott.d.phillips@intel.com>");
87
88 gst_element_class_add_static_pad_template (element_class, &sink_factory);
89 }
90
91 static void
gst_msdkmjpegdec_init(GstMsdkMJPEGDec * thiz)92 gst_msdkmjpegdec_init (GstMsdkMJPEGDec * thiz)
93 {
94 }
95