git.sesse.net Git - nageru/blob - flags.cpp

   1 #include "flags.h"
   2
   3 #include <getopt.h>
   4 #include <stdio.h>
   5 #include <stdlib.h>
   6
   7 Flags global_flags;
   8
   9 void usage()
  10 {
  11         fprintf(stderr, "Usage: nageru [OPTION]...\n");
  12         fprintf(stderr, "\n");
  13         fprintf(stderr, "  -h, --help                      print usage information\n");
  14         fprintf(stderr, "  -c, --num-cards                 set number of input cards (default 2)\n");
  15         fprintf(stderr, "  -t, --theme=FILE                choose theme (default theme.lua)\n");
  16         fprintf(stderr, "  -v, --va-display=SPEC           VA-API device for H.264 encoding\n");
  17         fprintf(stderr, "                                    ($DISPLAY spec or /dev/dri/render* path)\n");
  18         fprintf(stderr, "      --http-uncompressed-video   send uncompressed NV12 video to HTTP clients\n");
  19         fprintf(stderr, "      --http-x264-video           send x264-compressed video to HTTP clients\n");
  20         fprintf(stderr, "      --http-mux=NAME             mux to use for HTTP streams (default " DEFAULT_STREAM_MUX_NAME ")\n");
  21         fprintf(stderr, "      --http-audio-codec=NAME     audio codec to use for HTTP streams\n");
  22         fprintf(stderr, "                                  (default is to use the same as for the recording)\n");
  23         fprintf(stderr, "      --http-audio-bitrate=KBITS  audio codec bit rate to use for HTTP streams\n");
  24         fprintf(stderr, "                                  (default is %d, ignored unless --http-audio-codec is set)\n",
  25                 DEFAULT_AUDIO_OUTPUT_BIT_RATE / 1000);
  26         fprintf(stderr, "      --http-coarse-timebase      use less timebase for HTTP (recommended for muxers\n");
  27         fprintf(stderr, "                                  that handle large pts poorly, like e.g. MP4)\n");
  28         fprintf(stderr, "      --flat-audio                start with most audio processing turned off\n");
  29         fprintf(stderr, "      --no-flush-pbos             do not explicitly signal texture data uploads\n");
  30         fprintf(stderr, "                                    (will give display corruption, but makes it\n");
  31         fprintf(stderr, "                                    possible to run with apitrace in real time)\n");
  32 }
  33
  34 void parse_flags(int argc, char * const argv[])
  35 {
  36         static const option long_options[] = {
  37                 { "help", no_argument, 0, 'h' },
  38                 { "num-cards", required_argument, 0, 'c' },
  39                 { "theme", required_argument, 0, 't' },
  40                 { "va-display", required_argument, 0, 1000 },
  41                 { "http-uncompressed-video", no_argument, 0, 1001 },
  42                 { "http-x264-video", no_argument, 0, 1008 },
  43                 { "http-mux", required_argument, 0, 1004 },
  44                 { "http-coarse-timebase", no_argument, 0, 1005 },
  45                 { "http-audio-codec", required_argument, 0, 1006 },
  46                 { "http-audio-bitrate", required_argument, 0, 1007 },
  47                 { "flat-audio", no_argument, 0, 1002 },
  48                 { "no-flush-pbos", no_argument, 0, 1003 },
  49                 { 0, 0, 0, 0 }
  50         };
  51         for ( ;; ) {
  52                 int option_index = 0;
  53                 int c = getopt_long(argc, argv, "c:t:", long_options, &option_index);
  54
  55                 if (c == -1) {
  56                         break;
  57                 }
  58                 switch (c) {
  59                 case 'c':
  60                         global_flags.num_cards = atoi(optarg);
  61                         break;
  62                 case 't':
  63                         global_flags.theme_filename = optarg;
  64                         break;
  65                 case 1000:
  66                         global_flags.va_display = optarg;
  67                         break;
  68                 case 1001:
  69                         global_flags.uncompressed_video_to_http = true;
  70                         break;
  71                 case 1004:
  72                         global_flags.stream_mux_name = optarg;
  73                         break;
  74                 case 1005:
  75                         global_flags.stream_coarse_timebase = true;
  76                         break;
  77                 case 1006:
  78                         global_flags.stream_audio_codec_name = optarg;
  79                         break;
  80                 case 1007:
  81                         global_flags.stream_audio_codec_bitrate = atoi(optarg) * 1000;
  82                         break;
  83                 case 1008:
  84                         global_flags.x264_video_to_http = true;
  85                         break;
  86                 case 1002:
  87                         global_flags.flat_audio = true;
  88                         break;
  89                 case 1003:
  90                         global_flags.flush_pbos = false;
  91                         break;
  92                 case 'h':
  93                         usage();
  94                         exit(0);
  95                 default:
  96                         fprintf(stderr, "Unknown option '%s'\n", argv[option_index]);
  97                         fprintf(stderr, "\n");
  98                         usage();
  99                         exit(1);
 100                 }
 101         }
 102
 103         if (global_flags.uncompressed_video_to_http &&
 104             global_flags.x264_video_to_http) {
 105                 fprintf(stderr, "ERROR: --http-uncompressed-video and --http-x264-video are mutually incompatible\n");
 106                 exit(1);
 107         }
 108 }