source: trunk/src/testing/app/svc/src/SVC_input_null.cpp @ 4

Revision 4, 6.8 KB checked in by ajaworski, 13 years ago (diff)

Added modified SAGE sources
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[4]1/******************************************************************************
2 * SAGE - Scalable Adaptive Graphics Environment
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4 * Copyright (C) 2004 Electronic Visualization Laboratory,
5 * University of Illinois at Chicago
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36
37#include "SVC_input_null.h"
38
39SVC_input_null::SVC_input_null()
40{
41    m_pid = 69;
42    m_byte_pixel = 2;
43    m_color_mode = RGB16;
44    m_decode_mpeg2 = NULL;
45}
46
47void SVC_input_null::setOutput(SVC_output_module *o_module)
48{
49        m_output_module = o_module;
50                if(m_decode_mpeg2)
51                        m_decode_mpeg2 -> set_output_module(m_output_module);
52        if(m_codec == UNCOM)
53                m_output_module ->init (m_buffer_size,1,0,m_output_addr,m_output_port);
54}
55void SVC_input_null::init(int codec,int color_mode, int buffer_size, int rtp_flag, char* addr, int port, char* output_addr, int output_port)
56{
57        //setting network configuration
58        m_input_addr = addr;
59        m_input_port = port;
60        m_output_addr = output_addr;
61        m_output_port = output_port;
62        m_color_mode = color_mode;
63        m_codec = codec;
64        m_byte_pixel = convert_format2pixelbyte(m_color_mode);
65        m_buffer_size = buffer_size;
66
67        //setting decoder configuration
68        select_decoder(codec);
69}
70void SVC_input_null::run()
71{
72        m_receive_callback((void*)this);        //process for specific decoder
73}
74void SVC_input_null::select_decoder(int codec)
75{
76    switch(codec)
77    {
78        case MPEG2:
79                /* setting capture callback function */
80                m_receive_callback = mpeg2_receive;
81                fprintf(stderr,"CODEC:MPEG2\n");
82                /* setting decoder */
83                m_decode_mpeg2 = new SVC_decode_mpeg2();
84                m_decode_mpeg2 -> init(m_pid, m_color_mode,m_buffer_size,m_output_addr,m_output_port);
85                m_decode_mpeg2 -> set_output_callback((void*)this, decode_output_callback);
86
87            break;
88        case DV:
89                /* setting capture callback function */
90                m_receive_callback = dv_receive;
91                fprintf(stderr,"CODEC:DV\n");
92
93                /* setting decoder */
94
95            break;
96        case UNCOM:
97                m_receive_callback = mpeg2_receive;
98                /* setting capture callback function */
99                fprintf(stderr,"CODEC:NULL\n");
100                /* setting decoder */
101
102            break;
103
104        default:
105                fprintf(stderr,"This codec is not supported\n");
106            break;
107    }
108}
109
110void SVC_input_null::decode_output_callback(void* output_obj, uint8_t * const * buf, void * id, int width, int height)
111{
112        SVC_input_null* THIS = (SVC_input_null*) output_obj;
113        THIS -> set_imagesize(width, height);
114        THIS -> decode_ouput(buf);
115}
116void SVC_input_null::decode_ouput(uint8_t * const * buf)
117{
118        m_output_module -> push_data((unsigned char*)buf[0],m_width,m_height,m_byte_pixel);
119}
120void SVC_input_null::set_imagesize (int width, int height)
121{
122        m_width = width;
123        m_height = height;
124}
125char* SVC_input_null::get_input_addr()
126{
127        return m_input_addr;
128}
129int SVC_input_null::get_input_port()
130{
131        return m_input_port;
132}
133int SVC_input_null::get_buffer_size()
134{
135        return m_buffer_size;
136}
137
138void SVC_input_null::mpeg2_receive(void* obj)
139{
140        SVC_input_null* THIS = (SVC_input_null *)obj;
141
142        int fd =0;      //stdin
143        struct timeval tv;
144        fd_set rfds;
145        int result = 0;
146        int buf_size = THIS -> get_buffer_size();
147        char* stream = (char*) malloc(sizeof(char)*SVC_MAX_INPUTNET_BUFFER_SIZE);
148
149        fprintf (stderr, "Starting to receive input_null\n");
150        int total = 0;
151
152        do {
153                  FD_ZERO (&rfds);
154                  FD_SET (fd, &rfds);
155                  tv.tv_sec = 0;
156                  tv.tv_usec = 20000;
157
158                  if (select (fd + 1, &rfds, NULL, NULL, &tv) > 0)    //if data is received
159                  {
160                                sleep(0);
161                                if(FD_ISSET(fd, &rfds))
162                                {
163                                     //read data from standard input
164                                     result = fread(stream,1,buf_size,stdin);
165
166                                        if(result == buf_size)
167                                        {
168                                                //fprintf(stderr, "SVC_input_null::read data %d\n",result);
169                                                //forward data received from stdin to decode
170                                                if(THIS-> m_codec != UNCOM)
171                                                        THIS -> m_decode_mpeg2 -> decode((unsigned char*)stream,result);
172                                                else
173                                                        THIS -> m_output_module -> push_data((unsigned char*)stream,result,1,1);
174
175                                                total += result;
176                                                if (total > 7800) // 6 packets == 1 frame ??
177                                                {
178                                                        //usleep((int)(1000.0/30.0)*1000); // get 30fps
179                                                                                                                                                  usleep(1);
180                                                        total = 0;
181                                                }
182
183
184                                        }
185                                        else {
186                                                fprintf(stderr, "SVC_input_null::incorrect received byte size %d -> %d received\n",buf_size,result);
187                                                break;
188                                        }
189                                }
190                                else
191                                        fprintf(stderr, "SVC_input_null::other's data\n");
192
193                        }
194                        else
195                        {
196                                //fprintf(stderr, "SVC_input_null::no data\n");
197                        }
198
199
200                }while (g_done_control == 0 ||  result == 0);   //should check
201
202                free(stream);
203
204                fprintf (stderr, "input_null is done.\n");
205}
206void SVC_input_null::dv_receive(void* obj)
207{
208        SVC_input_null* THIS = (SVC_input_null *)obj;
209
210}
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