1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.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.
*/
#ifndef __GST_H264_DECODER_H__
#define __GST_H264_DECODER_H__
#include <gst/codecs/codecs-prelude.h>
#include <gst/video/video.h>
#include <gst/codecparsers/gsth264parser.h>
#include <gst/codecs/gsth264picture.h>
G_BEGIN_DECLS
#define GST_TYPE_H264_DECODER (gst_h264_decoder_get_type())
#define GST_H264_DECODER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_H264_DECODER,GstH264Decoder))
#define GST_H264_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_H264_DECODER,GstH264DecoderClass))
#define GST_H264_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_H264_DECODER,GstH264DecoderClass))
#define GST_IS_H264_DECODER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_H264_DECODER))
#define GST_IS_H264_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_H264_DECODER))
#define GST_H264_DECODER_CAST(obj) ((GstH264Decoder*)obj)
typedef struct _GstH264Decoder GstH264Decoder;
typedef struct _GstH264DecoderClass GstH264DecoderClass;
typedef struct _GstH264DecoderPrivate GstH264DecoderPrivate;
/**
* GstH264Decoder:
*
* The opaque #GstH264Decoder data structure.
*/
struct _GstH264Decoder
{
/*< private >*/
GstVideoDecoder parent;
/*< protected >*/
GstVideoCodecState * input_state;
/*< private >*/
GstH264DecoderPrivate *priv;
gpointer padding[GST_PADDING_LARGE];
};
/**
* GstH264DecoderClass:
* @new_sequence: Notifies subclass of SPS update
* @new_picture: Optional.
* Called whenever new #GstH264Picture is created.
* Subclass can set implementation specific user data
* on the #GstH264Picture via gst_h264_picture_set_user_data()
* @start_picture: Optional.
* Called per one #GstH264Picture to notify subclass to prepare
* decoding process for the #GstH264Picture
* @decode_slice: Provides per slice data with parsed slice header and
* required raw bitstream for subclass to decode it
* @end_picture: Optional.
* Called per one #GstH264Picture to notify subclass to finish
* decoding process for the #GstH264Picture
* @output_picture: Called with a #GstH264Picture which is required to be outputted.
* Subclass can retrieve parent #GstVideoCodecFrame by using
* gst_video_decoder_get_frame() with system_frame_number
* and the #GstVideoCodecFrame must be consumed by subclass via
* gst_video_decoder_{finish,drop,release}_frame().
*/
struct _GstH264DecoderClass
{
GstVideoDecoderClass parent_class;
gboolean (*new_sequence) (GstH264Decoder * decoder,
const GstH264SPS * sps,
gint max_dpb_size);
gboolean (*new_picture) (GstH264Decoder * decoder,
GstH264Picture * picture);
gboolean (*start_picture) (GstH264Decoder * decoder,
GstH264Picture * picture,
GstH264Slice * slice,
GstH264Dpb * dpb);
gboolean (*decode_slice) (GstH264Decoder * decoder,
GstH264Picture * picture,
GstH264Slice * slice);
gboolean (*end_picture) (GstH264Decoder * decoder,
GstH264Picture * picture);
GstFlowReturn (*output_picture) (GstH264Decoder * decoder,
GstH264Picture * picture);
/*< private >*/
gpointer padding[GST_PADDING_LARGE];
};
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstH264Decoder, gst_object_unref)
GST_CODECS_API
GType gst_h264_decoder_get_type (void);
GST_CODECS_API
void gst_h264_decoder_set_process_ref_pic_lists (GstH264Decoder * self,
gboolean process);
G_END_DECLS
#endif /* __GST_H264_DECODER_H__ */
|
