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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* multiplexer.h
*
* Wed Aug 31 13:05:18 CEST 2005
* Copyright 2005 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of MIaV.
*
* MIaV is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MIaV 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MIaV; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "config.h"
#ifndef __MIAV_MULTIPLEXER_H__
#define __MIAV_MULTIPLEXER_H__
#include "iso11172-1.h"
#include "iso11172-2.h"
#include "iso11172-3.h"
#include "file.h"
#include "info.h"
#include "frame.h"
/**
* Multiplexer configuration
*/
// How many packets should we put in one pack
#define NUMBER_OF_PACKETS_IN_A_PACK 3
// How many packets bewteen audio packs
#define AUDIO_PACKET_FREQUENCY 10
// How many packs bewteen system headers
#define SYSTEM_HEADER_FREQUENCY 5
// Size of video or audio data pr. packet
#define PACKET_SIZE 2048
/**
* Other stuff
*/
// The number of streamtypes.
#define NUM_TYPES 2
// Enum of the streamtypes.
typedef enum {
TYPE_VIDEO,
TYPE_AUDIO
} StreamType;
class Multiplexer {
public:
Multiplexer(File *file, Info *info, volatile bool *running,
FramePriorityQueue *v_q, pthread_mutex_t *v_m, sem_t *v_s,
FramePriorityQueue *a_q, pthread_mutex_t *a_m, sem_t *a_s);
~Multiplexer();
void multiplex();
private:
double written[NUM_TYPES];
void iso11172_stream();
void pack();
void system_header();
void packet();
void packet(StreamType type);
/*
void audio_packet();
void video_packet();
void audio_data(ISO11172_3::header *header);
void audio_data_layer_I(ISO11172_3::header *header);
void audio_data_layer_II(ISO11172_3::header *header);
void audio_data_layer_III(ISO11172_3::header *header);
void video_data(ISO11172_2::sequence_header_1 *header1,
ISO11172_2::sequence_header_2 *header2);
*/
// Frequency variables
unsigned int write_system_header;
unsigned int write_audio_packet;
int read_stream(char *buf, unsigned int size, StreamType type);
FramePriorityQueue *queue[NUM_TYPES];
pthread_mutex_t *mutex[NUM_TYPES];
sem_t *sem[NUM_TYPES];
Frame *frame[NUM_TYPES];
unsigned int frame_number[NUM_TYPES];
unsigned int read[NUM_TYPES];
File *file;
Info *info;
volatile bool *running;
// Audio Header
bool audio_header_read;
};
#endif/*__MIAV_MULTIPLEXER_H__*/
|
