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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/* MPEG-PS muxer plugin for GStreamer
* Copyright 2008 Lin YANG <oxcsnicho@gmail.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Unless otherwise indicated, Source Code is licensed under MIT license.
* See further explanation attached in License Statement (distributed in the file
* LICENSE).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __PSMUX_COMMON_H__
#define __PSMUX_COMMON_H__
#include <glib.h>
#include <gst/gst.h>
#include "bits.h" /* from VLC */
#undef PS_DEBUG_ON
G_BEGIN_DECLS
#define PSMUX_PACK_HDR_FREQ 30
#define PSMUX_SYS_HDR_FREQ 300
#define PSMUX_PSM_FREQ 300
#define PSMUX_PES_MAX_PAYLOAD 65500 /* from VLC */
#define PSMUX_PES_MAX_HDR_LEN 30
#define PSMUX_MAX_PACKET_LEN (PSMUX_PES_MAX_PAYLOAD + PSMUX_PES_MAX_HDR_LEN)
#define CLOCKBASE 90000
#define PSMUX_PACK_HDR_INTERVAL ( 0.7 * CLOCKBASE) /* interval to update pack header. 0.7 sec */
#define PSMUX_BITRATE_CALC_INTERVAL CLOCKBASE /* interval to update bitrate in pack header. 1 sec */
#define PSMUX_PES_BITRATE_DEFAULT 1000 /* Default bit_rate to write in the first pack header */
#define PSMUX_START_CODE_PREFIX 0x01
/* stream_id */
#define PSMUX_PACK_HEADER 0xba
#define PSMUX_SYSTEM_HEADER 0xbb
#define PSMUX_PROGRAM_STREAM_MAP 0xbc
#define PSMUX_PRIVATE_STREAM_1 0xbd
#define PSMUX_PADDING_STREAM 0xbe
#define PSMUX_PRIVATE_STREAM_2 0xbf
#define PSMUX_ECM 0xb0
#define PSMUX_EMM 0xb1
#define PSMUX_PROGRAM_STREAM_DIRECTORY 0xff
#define PSMUX_DSMCC_STREAM 0xf2
#define PSMUX_ITU_T_H222_1_TYPE_E 0xf8
#define PSMUX_EXTENDED_STREAM 0xfd
#define PSMUX_PROGRAM_END 0xb9
#define PSMUX_MIN_ES_DESC_LEN 8
/* Frequency for PCR representation */
#define PSMUX_SYS_CLOCK_FREQ (27000000L)
/* Frequency for PTS values */
#define PSMUX_CLOCK_FREQ (PSMUX_SYS_CLOCK_FREQ / 300)
/* TODO: flags? looks that we don't need these */
#define PSMUX_PACKET_FLAG_NONE (0)
#define PSMUX_PACKET_FLAG_ADAPTATION (1 << 0)
#define PSMUX_PACKET_FLAG_DISCONT (1 << 1)
#define PSMUX_PACKET_FLAG_RANDOM_ACCESS (1 << 2)
#define PSMUX_PACKET_FLAG_PRIORITY (1 << 3)
#define PSMUX_PACKET_FLAG_WRITE_PCR (1 << 4)
#define PSMUX_PACKET_FLAG_WRITE_OPCR (1 << 5)
#define PSMUX_PACKET_FLAG_WRITE_SPLICE (1 << 6)
#define PSMUX_PACKET_FLAG_WRITE_ADAPT_EXT (1 << 7)
/* PES stream specific flags */
#define PSMUX_PACKET_FLAG_PES_FULL_HEADER (1 << 8)
#define PSMUX_PACKET_FLAG_PES_WRITE_PTS (1 << 9)
#define PSMUX_PACKET_FLAG_PES_WRITE_PTS_DTS (1 << 10)
#define PSMUX_PACKET_FLAG_PES_WRITE_ESCR (1 << 11)
#define PSMUX_PACKET_FLAG_PES_EXT_STREAMID (1 << 12)
#define PSMUX_PACKET_FLAG_PES_DATA_ALIGN (1 << 13)
typedef struct PsMuxPacketInfo PsMuxPacketInfo;
typedef struct PsMuxProgram PsMuxProgram;
typedef struct PsMuxStream PsMuxStream;
typedef struct PsMuxStreamIdInfo PsMuxStreamIdInfo;
typedef struct PsMux PsMux;
typedef enum PsMuxStreamType PsMuxStreamType;
typedef struct PsMuxStreamBuffer PsMuxStreamBuffer;
/* clearup and see if we need this anymore */
struct PsMuxPacketInfo {
guint32 flags;
};
/* bitstream writers */
static inline void
psmux_put16 (guint8 **pos, guint16 val)
{
*(*pos)++ = (val >> 8) & 0xff;
*(*pos)++ = val & 0xff;
}
static inline void
psmux_put32 (guint8 **pos, guint32 val)
{
*(*pos)++ = (val >> 24) & 0xff;
*(*pos)++ = (val >> 16) & 0xff;
*(*pos)++ = (val >> 8) & 0xff;
*(*pos)++ = val & 0xff;
}
static inline void
psmux_put_ts (guint8 **pos, guint8 id, gint64 ts)
{
/* 1: 4 bit id value | TS [32..30] | marker_bit */
*(*pos)++ = ((id << 4) | ((ts >> 29) & 0x0E) | 0x01) & 0xff;
/* 2, 3: TS[29..15] | marker_bit */
psmux_put16 (pos, ((ts >> 14) & 0xfffe) | 0x01);
/* 4, 5: TS[14..0] | marker_bit */
psmux_put16 (pos, ((ts << 1) & 0xfffe) | 0x01);
}
#ifdef PS_DEBUG_ON
#define PS_DEBUG(...) g_print(__VA_ARGS__); g_print ("\n")
#else
#define PS_DEBUG(...)
#endif
G_END_DECLS
#endif
|
