streamer.c

   1 /*
   2  *  Copyright (c) 2008 Luca Abeni
   3  *
   4  *  This is free software; see GPL.txt
   5  */
   6 #include <unistd.h>
   7 #include <stdlib.h>
   8 #include <signal.h>
   9 #include <pthread.h>
  10
  11 #include <libavformat/avformat.h>
  12 #include <libavdevice/avdevice.h>
  13 #include <libswscale/swscale.h>
  14
  15 #include "input.h"
  16 #include "output.h"
  17 #include "codec.h"
  18 #include "rt.h"
  19
  20 #include "streamer_config.h"
  21
  22 #ifdef CONFIG_OC_ULUT
  23 #include <ul_log.h>
  24 #include <ul_logreg.h>
  25 #endif
  26
  27 #ifdef CONFIG_FFMPEG_WITH_FRSH
  28 #include <frsh.h>
  29
  30 /*temporrary solution to pass network parameters */
  31 extern long int udp_budget, udp_period;
  32 #endif /*CONFIG_STREAMER_WITH_FRSH*/
  33
  34 static const char *sdp_file = "sdp.txt";
  35 static const char *vdev = "/dev/video0";
  36 static const char *dst = "127.0.0.1";
  37 static int dport = 20000;
  38 static int width = 352;
  39 static int height = 288;
  40 int fps = 25;
  41 static const char *impform = "video4linux2";
  42 AVFormatContext *s, *os;
  43
  44 static void sdp_print(AVFormatContext *s, const char *fname)
  45 {
  46     char sdp[2048];
  47     FILE *f;
  48
  49     f = fopen(fname, "w");
  50     avf_sdp_create(&s, 1, sdp, sizeof(sdp));
  51     fprintf(f, "%s\n", sdp);
  52     fclose(f);
  53 }
  54
  55 static void
  56 usage(void)
  57 {
  58         printf("usage: streamer [ options ]\n");
  59         printf("  -w <number>    send image width\n");
  60         printf("  -h <number>    send image height\n");
  61         printf("  -r <number>    refresh rate\n");
  62         printf("  -r <path>      video device [%s]\n", vdev);
  63         printf("  -m <addr>      destination IP address\n");
  64         printf("  -i <string>    input video device format [%s]\n", impform);
  65       #ifdef CONFIG_STREAMER_WITH_FRSH
  66         printf("  -b <number>    network budget\n");
  67         printf("  -p <number>    network period for given budget\n");
  68       #endif /*CONFIG_STREAMER_WITH_FRSH*/
  69       #ifdef CONFIG_OC_ULUT
  70         printf("  -l <number>|<domain>=<number>,...\n");
  71       #endif /*CONFIG_OC_ULUT*/
  72 }
  73
  74 static int args_parse(int argc, char *argv[])
  75 {
  76   int v;
  77
  78   while ((v = getopt(argc, argv, "w:h:r:d:m:i:l:b:p:")) >= 0) {
  79     switch (v) {
  80       case 'w':
  81         width = atoi(optarg);
  82         break;
  83       case 'h':
  84         height = atoi(optarg);
  85         break;
  86       case 'r':
  87         fps = atoi(optarg);
  88         break;
  89       case 'd':
  90         vdev = optarg;
  91         break;
  92       case 'm':
  93         dst = optarg;
  94         break;
  95       case 'i':
  96         impform = optarg;
  97         if(!strcmp(impform, "v4l"))
  98           impform = "video4linux";
  99         else if(!strcmp(impform, "v4l2"))
 100           impform = "video4linux2";
 101         break;
 102       #ifdef CONFIG_STREAMER_WITH_FRSH
 103       case 'b':
 104         udp_budget = atol(optarg);
 105         break;
 106       case 'p':
 107         udp_period = atol(optarg);
 108         break;
 109       #endif /*CONFIG_STREAMER_WITH_FRSH*/
 110
 111       #ifdef CONFIG_OC_ULUT
 112       case 'l':
 113         ul_log_domain_arg2levels(optarg);
 114         break;
 115       #endif /*CONFIG_OC_ULUT*/
 116
 117       default: /* unknown option */
 118         fprintf(stderr, "%s: illegal option %c\n", argv[0], v);
 119         usage();
 120         exit(-1);
 121     }
 122   }
 123
 124   return 0;
 125 }
 126
 127 int streamer_run_done_rq;
 128
 129 void* streamer_run(void* args)
 130 {
 131   int done;
 132
 133   done = 0;
 134   while (!(done = streamer_run_done_rq)) {
 135     AVPacket *pkt;
 136     pkt = read_input_packet(s);
 137     if (pkt == NULL) {
 138       done = 1;
 139     } else {
 140       AVFrame *f;
 141       AVPacket *opkt;
 142
 143       pkt->pts += s->streams[pkt->stream_index]->start_time;
 144       //rt_job_start(pkt->pts);
 145       f = pkt_decode(s, pkt);
 146       if (f) {
 147         opkt = pkt_encode(os, f);
 148         if (opkt) {
 149           pkt_send(os, opkt);
 150           printf("opkt size: %d\n", opkt->size);
 151         }
 152       }
 153       //rt_job_end();
 154       av_free_packet(pkt);
 155     }
 156   }
 157
 158   return NULL;
 159 }
 160
 161 void wait_for_ending_command(void) {
 162   sigset_t sigset;
 163   sigemptyset(&sigset);
 164   sigaddset(&sigset, SIGINT);
 165   sigaddset(&sigset, SIGTERM);
 166   sigwaitinfo(&sigset, NULL);
 167 }
 168 static void block_signals(void) {
 169   sigset_t sigset;
 170   sigemptyset(&sigset);
 171   sigaddset(&sigset, SIGINT);
 172   sigaddset(&sigset, SIGTERM);
 173   sigprocmask(SIG_BLOCK,&sigset,NULL);
 174   pthread_sigmask(SIG_BLOCK,&sigset,NULL);
 175 }
 176
 177
 178 int main(int argc, char *argv[])
 179 {
 180
 181   //long int cpu_budget, cpu_period;
 182   int ret;
 183
 184   block_signals();
 185
 186 #ifdef CONFIG_FFMPEG_WITH_FRSH
 187   ret = frsh_init();
 188   if (ret) PERROR_AND_EXIT(ret, "frsh_init1");
 189
 190   /* fill default network contract params */
 191   udp_budget = 50000;
 192   udp_period = 500;
 193 #endif /*CONFIG_FFMPEG_WITH_FRSH*/
 194
 195   avcodec_register_all();
 196   av_register_all();
 197   avdevice_register_all();
 198
 199   args_parse(argc, argv);
 200
 201   s = open_input_stream(vdev, width, height, fps, impform);
 202   if (s == NULL) {
 203     fprintf(stderr, "Cannot open input file %s\n", vdev);
 204
 205     return -1;
 206   }
 207   codec_open(s);
 208   os = open_output_stream(dst, dport, CODEC_TYPE_VIDEO);
 209   if (os == NULL) {
 210     fprintf(stderr, "Cannot open output stream\n");
 211
 212     return -1;
 213   }
 214   os->streams[0]->codec->width = s->streams[0]->codec->width;
 215   os->streams[0]->codec->height = s->streams[0]->codec->height;
 216   os->streams[0]->codec->time_base = s->streams[0]->codec->time_base;
 217   os->streams[0]->codec->bit_rate = 300000;
 218   codec_connect(s->streams[0]->codec, os->streams[0]->codec);
 219   out_codec_open(os);
 220   dump_format(os, 0, os->filename, 1);
 221   sdp_print(os, sdp_file);
 222
 223 #if CONFIG_STREAMER_WITH_FRSH && CONFIG_AQUOSA
 224   frsh_thread_attr_t frsh_attr;
 225   frsh_thread_id_t thread;
 226   frsh_vres_id_t cpu_vres;
 227   frsh_contract_t cpu_contract;
 228   frsh_rel_time_t cpu_budget, cpu_period;
 229
 230   cpu_budget = fosa_msec_to_rel_time(50);
 231   cpu_period = fosa_msec_to_rel_time(100);
 232   /* Contract negotiation for CPU */
 233   ret = frsh_contract_init(&cpu_contract);
 234   if (ret) PERROR_AND_EXIT(ret, "CPU:frsh_contract_init");
 235
 236   ret = frsh_contract_set_basic_params(&cpu_contract,
 237                                              &cpu_budget,
 238                                              &cpu_period,
 239                                              FRSH_WT_BOUNDED,
 240                                              FRSH_CT_REGULAR);
 241         if (ret) PERROR_AND_EXIT(ret, "frsh_contract_set_basic_params");
 242         ret = frsh_contract_set_resource_and_label(&cpu_contract,
 243                         FRSH_RT_PROCESSOR, FRSH_CPU_ID_DEFAULT, "aqcpu_cont");
 244         if (ret) PERROR_AND_EXIT(ret, "frsh_contract_set_resource_and_label");
 245
 246         ret = frsh_contract_negotiate(&cpu_contract, &cpu_vres);
 247         if (ret) PERROR_AND_EXIT(ret, "frsh_contract_negotiate");
 248         printf("Aqcpu vres negotiated\n");
 249
 250         pthread_attr_init(&frsh_attr);
 251         ret = frsh_thread_create_and_bind(cpu_vres, &thread, &frsh_attr,
 252                                 streamer_run, (void*) NULL);
 253         if (ret) PERROR_AND_EXIT(ret, "frsh_thread_create_and_bind");
 254
 255         wait_for_ending_command();
 256
 257         streamer_run_done_rq = 1;
 258
 259         pthread_join(thread.pthread_id, (void**) NULL);
 260
 261         printf("Ending contracts\n");
 262
 263         ret = frsh_contract_cancel(cpu_vres);
 264         if (ret) PERROR_AND_EXIT(ret, "frsh_contract_cancel");
 265
 266         printf("Finishing\n");
 267
 268         close_output_stream(os);
 269 #else
 270         pthread_attr_t attr;
 271         pthread_t streamer_th;
 272
 273         pthread_attr_init(&attr);
 274
 275         ret = pthread_create(&streamer_th, &attr, streamer_run, (void*) NULL);
 276         if (ret)
 277                         printf("Failed to create streamer thread\n.");
 278
 279         wait_for_ending_command();
 280
 281         streamer_run_done_rq = 1;
 282
 283         pthread_join(streamer_th, (void**) NULL);
 284
 285         printf("Finishing\n");
 286
 287         close_output_stream(os);
 288 #endif
 289
 290   return 0;
 291 }
 292