14 // Long options that have no corresponding short option.
16 OPTION_VA_DISPLAY = 1000,
17 OPTION_HTTP_UNCOMPRESSED_VIDEO,
18 OPTION_HTTP_X264_VIDEO,
21 OPTION_X264_SPEEDCONTROL,
22 OPTION_X264_SPEEDCONTROL_VERBOSE,
24 OPTION_X264_VBV_BUFSIZE,
25 OPTION_X264_VBV_MAX_BITRATE,
28 OPTION_HTTP_COARSE_TIMEBASE,
29 OPTION_HTTP_AUDIO_CODEC,
30 OPTION_HTTP_AUDIO_BITRATE,
35 OPTION_DISABLE_GAIN_STAGING_AUTO,
36 OPTION_ENABLE_GAIN_STAGING_AUTO,
37 OPTION_DISABLE_COMPRESSOR,
38 OPTION_ENABLE_COMPRESSOR,
39 OPTION_DISABLE_LIMITER,
40 OPTION_ENABLE_LIMITER,
41 OPTION_DISABLE_MAKEUP_GAIN_AUTO,
42 OPTION_ENABLE_MAKEUP_GAIN_AUTO,
43 OPTION_DISABLE_ALSA_OUTPUT,
49 fprintf(stderr, "Usage: nageru [OPTION]...\n");
50 fprintf(stderr, "\n");
51 fprintf(stderr, " -h, --help print usage information\n");
52 fprintf(stderr, " -c, --num-cards set number of input cards, including fake cards (default 2)\n");
53 fprintf(stderr, " -C, --num-fake-cards set number of fake cards (default 0)\n");
54 fprintf(stderr, " -t, --theme=FILE choose theme (default theme.lua)\n");
55 fprintf(stderr, " -v, --va-display=SPEC VA-API device for H.264 encoding\n");
56 fprintf(stderr, " ($DISPLAY spec or /dev/dri/render* path)\n");
57 fprintf(stderr, " -m, --map-signal=SIGNAL,CARD set a default card mapping (can be given multiple times)\n");
58 fprintf(stderr, " --http-uncompressed-video send uncompressed NV12 video to HTTP clients\n");
59 fprintf(stderr, " --http-x264-video send x264-compressed video to HTTP clients\n");
60 fprintf(stderr, " --x264-preset x264 quality preset (default " X264_DEFAULT_PRESET ")\n");
61 fprintf(stderr, " --x264-tune x264 tuning (default " X264_DEFAULT_TUNE ", can be blank)\n");
62 fprintf(stderr, " --x264-speedcontrol try to match x264 preset to available CPU speed\n");
63 fprintf(stderr, " --x264-speedcontrol-verbose output speedcontrol debugging statistics\n");
64 fprintf(stderr, " --x264-bitrate x264 bitrate (in kilobit/sec, default %d)\n",
65 DEFAULT_X264_OUTPUT_BIT_RATE);
66 fprintf(stderr, " --x264-vbv-bufsize x264 VBV size (in kilobits, 0 = one-frame VBV,\n");
67 fprintf(stderr, " default: same as --x264-bitrate, that is, one-second VBV)\n");
68 fprintf(stderr, " --x264-vbv-max-bitrate x264 local max bitrate (in kilobit/sec per --vbv-bufsize,\n");
69 fprintf(stderr, " 0 = no limit, default: same as --x264-bitrate, i.e., CBR)\n");
70 fprintf(stderr, " --x264-param=NAME[,VALUE] set any x264 parameter, for fine tuning\n");
71 fprintf(stderr, " --http-mux=NAME mux to use for HTTP streams (default " DEFAULT_STREAM_MUX_NAME ")\n");
72 fprintf(stderr, " --http-audio-codec=NAME audio codec to use for HTTP streams\n");
73 fprintf(stderr, " (default is to use the same as for the recording)\n");
74 fprintf(stderr, " --http-audio-bitrate=KBITS audio codec bit rate to use for HTTP streams\n");
75 fprintf(stderr, " (default is %d, ignored unless --http-audio-codec is set)\n",
76 DEFAULT_AUDIO_OUTPUT_BIT_RATE / 1000);
77 fprintf(stderr, " --http-coarse-timebase use less timebase for HTTP (recommended for muxers\n");
78 fprintf(stderr, " that handle large pts poorly, like e.g. MP4)\n");
79 fprintf(stderr, " --flat-audio start with most audio processing turned off\n");
80 fprintf(stderr, " (can be overridden by e.g. --enable-limiter)\n");
81 fprintf(stderr, " --gain-staging=DB set initial gain staging to the given value\n");
82 fprintf(stderr, " (--disable-gain-staging-auto)\n");
83 fprintf(stderr, " --disable-locut turn off locut filter (also --enable)\n");
84 fprintf(stderr, " --disable-gain-staging-auto turn off automatic gain staging (also --enable)\n");
85 fprintf(stderr, " --disable-compressor turn off regular compressor (also --enable)\n");
86 fprintf(stderr, " --disable-limiter turn off limiter (also --enable)\n");
87 fprintf(stderr, " --disable-makeup-gain-auto turn off auto-adjustment of final makeup gain (also --enable)\n");
88 fprintf(stderr, " --disable-alsa-output disable audio monitoring via ALSA\n");
89 fprintf(stderr, " --no-flush-pbos do not explicitly signal texture data uploads\n");
90 fprintf(stderr, " (will give display corruption, but makes it\n");
91 fprintf(stderr, " possible to run with apitrace in real time)\n");
94 void parse_flags(int argc, char * const argv[])
96 static const option long_options[] = {
97 { "help", no_argument, 0, 'h' },
98 { "num-cards", required_argument, 0, 'c' },
99 { "num-fake-cards", required_argument, 0, 'C' },
100 { "theme", required_argument, 0, 't' },
101 { "map-signal", required_argument, 0, 'm' },
102 { "va-display", required_argument, 0, OPTION_VA_DISPLAY },
103 { "http-uncompressed-video", no_argument, 0, OPTION_HTTP_UNCOMPRESSED_VIDEO },
104 { "http-x264-video", no_argument, 0, OPTION_HTTP_X264_VIDEO },
105 { "x264-preset", required_argument, 0, OPTION_X264_PRESET },
106 { "x264-tune", required_argument, 0, OPTION_X264_TUNE },
107 { "x264-speedcontrol", no_argument, 0, OPTION_X264_SPEEDCONTROL },
108 { "x264-speedcontrol-verbose", no_argument, 0, OPTION_X264_SPEEDCONTROL_VERBOSE },
109 { "x264-bitrate", required_argument, 0, OPTION_X264_BITRATE },
110 { "x264-vbv-bufsize", required_argument, 0, OPTION_X264_VBV_BUFSIZE },
111 { "x264-vbv-max-bitrate", required_argument, 0, OPTION_X264_VBV_MAX_BITRATE },
112 { "x264-param", required_argument, 0, OPTION_X264_PARAM },
113 { "http-mux", required_argument, 0, OPTION_HTTP_MUX },
114 { "http-coarse-timebase", no_argument, 0, OPTION_HTTP_COARSE_TIMEBASE },
115 { "http-audio-codec", required_argument, 0, OPTION_HTTP_AUDIO_CODEC },
116 { "http-audio-bitrate", required_argument, 0, OPTION_HTTP_AUDIO_BITRATE },
117 { "flat-audio", no_argument, 0, OPTION_FLAT_AUDIO },
118 { "gain-staging", required_argument, 0, OPTION_GAIN_STAGING },
119 { "disable-locut", no_argument, 0, OPTION_DISABLE_LOCUT },
120 { "enable-locut", no_argument, 0, OPTION_ENABLE_LOCUT },
121 { "disable-gain-staging-auto", no_argument, 0, OPTION_DISABLE_GAIN_STAGING_AUTO },
122 { "enable-gain-staging-auto", no_argument, 0, OPTION_ENABLE_GAIN_STAGING_AUTO },
123 { "disable-compressor", no_argument, 0, OPTION_DISABLE_COMPRESSOR },
124 { "enable-compressor", no_argument, 0, OPTION_ENABLE_COMPRESSOR },
125 { "disable-limiter", no_argument, 0, OPTION_DISABLE_LIMITER },
126 { "enable-limiter", no_argument, 0, OPTION_ENABLE_LIMITER },
127 { "disable-makeup-gain-auto", no_argument, 0, OPTION_DISABLE_MAKEUP_GAIN_AUTO },
128 { "enable-makeup-gain-auto", no_argument, 0, OPTION_ENABLE_MAKEUP_GAIN_AUTO },
129 { "disable-alsa-output", no_argument, 0, OPTION_DISABLE_ALSA_OUTPUT },
130 { "no-flush-pbos", no_argument, 0, OPTION_NO_FLUSH_PBOS },
134 int option_index = 0;
135 int c = getopt_long(argc, argv, "c:C:t:v:m:", long_options, &option_index);
142 global_flags.num_cards = atoi(optarg);
145 global_flags.num_fake_cards = atoi(optarg);
148 global_flags.theme_filename = optarg;
151 char *ptr = strchr(optarg, ',');
152 if (ptr == nullptr) {
153 fprintf(stderr, "ERROR: Invalid argument '%s' to --map-signal (needs a signal and a card number, separated by comma)\n", optarg);
157 const int signal_num = atoi(optarg);
158 const int card_num = atoi(ptr + 1);
159 if (global_flags.default_stream_mapping.count(signal_num)) {
160 fprintf(stderr, "ERROR: Signal %d already mapped to card %d\n",
161 signal_num, global_flags.default_stream_mapping[signal_num]);
164 global_flags.default_stream_mapping[signal_num] = card_num;
167 case OPTION_VA_DISPLAY:
168 global_flags.va_display = optarg;
170 case OPTION_HTTP_UNCOMPRESSED_VIDEO:
171 global_flags.uncompressed_video_to_http = true;
173 case OPTION_HTTP_MUX:
174 global_flags.stream_mux_name = optarg;
176 case OPTION_HTTP_COARSE_TIMEBASE:
177 global_flags.stream_coarse_timebase = true;
179 case OPTION_HTTP_AUDIO_CODEC:
180 global_flags.stream_audio_codec_name = optarg;
182 case OPTION_HTTP_AUDIO_BITRATE:
183 global_flags.stream_audio_codec_bitrate = atoi(optarg) * 1000;
185 case OPTION_HTTP_X264_VIDEO:
186 global_flags.x264_video_to_http = true;
188 case OPTION_X264_PRESET:
189 global_flags.x264_preset = optarg;
191 case OPTION_X264_TUNE:
192 global_flags.x264_tune = optarg;
194 case OPTION_X264_SPEEDCONTROL:
195 global_flags.x264_speedcontrol = true;
197 case OPTION_X264_SPEEDCONTROL_VERBOSE:
198 global_flags.x264_speedcontrol_verbose = true;
200 case OPTION_X264_BITRATE:
201 global_flags.x264_bitrate = atoi(optarg);
203 case OPTION_X264_VBV_BUFSIZE:
204 global_flags.x264_vbv_buffer_size = atoi(optarg);
206 case OPTION_X264_VBV_MAX_BITRATE:
207 global_flags.x264_vbv_max_bitrate = atoi(optarg);
209 case OPTION_X264_PARAM:
210 global_flags.x264_extra_param.push_back(optarg);
212 case OPTION_FLAT_AUDIO:
213 // If --flat-audio is given, turn off everything that messes with the sound,
214 // except the final makeup gain.
215 global_flags.locut_enabled = false;
216 global_flags.gain_staging_auto = false;
217 global_flags.compressor_enabled = false;
218 global_flags.limiter_enabled = false;
220 case OPTION_GAIN_STAGING:
221 global_flags.initial_gain_staging_db = atof(optarg);
222 global_flags.gain_staging_auto = false;
224 case OPTION_DISABLE_LOCUT:
225 global_flags.locut_enabled = false;
227 case OPTION_ENABLE_LOCUT:
228 global_flags.locut_enabled = true;
230 case OPTION_DISABLE_GAIN_STAGING_AUTO:
231 global_flags.gain_staging_auto = false;
233 case OPTION_ENABLE_GAIN_STAGING_AUTO:
234 global_flags.gain_staging_auto = true;
236 case OPTION_DISABLE_COMPRESSOR:
237 global_flags.compressor_enabled = false;
239 case OPTION_ENABLE_COMPRESSOR:
240 global_flags.compressor_enabled = true;
242 case OPTION_DISABLE_LIMITER:
243 global_flags.limiter_enabled = false;
245 case OPTION_ENABLE_LIMITER:
246 global_flags.limiter_enabled = true;
248 case OPTION_DISABLE_MAKEUP_GAIN_AUTO:
249 global_flags.final_makeup_gain_auto = false;
251 case OPTION_ENABLE_MAKEUP_GAIN_AUTO:
252 global_flags.final_makeup_gain_auto = true;
254 case OPTION_DISABLE_ALSA_OUTPUT:
255 global_flags.enable_alsa_output = false;
257 case OPTION_NO_FLUSH_PBOS:
258 global_flags.flush_pbos = false;
264 fprintf(stderr, "Unknown option '%s'\n", argv[option_index]);
265 fprintf(stderr, "\n");
271 if (global_flags.uncompressed_video_to_http &&
272 global_flags.x264_video_to_http) {
273 fprintf(stderr, "ERROR: --http-uncompressed-video and --http-x264-video are mutually incompatible\n");
276 if (global_flags.num_fake_cards > global_flags.num_cards) {
277 fprintf(stderr, "ERROR: More fake cards then total cards makes no sense\n");
280 if (global_flags.num_cards <= 0) {
281 fprintf(stderr, "ERROR: --num-cards must be at least 1\n");
284 if (global_flags.num_fake_cards < 0) {
285 fprintf(stderr, "ERROR: --num-fake-cards cannot be negative\n");
288 if (global_flags.x264_speedcontrol) {
289 if (!global_flags.x264_preset.empty() && global_flags.x264_preset != "faster") {
290 fprintf(stderr, "WARNING: --x264-preset is overridden by --x264-speedcontrol (implicitly uses \"faster\" as base preset)\n");
292 global_flags.x264_preset = "faster";
293 } else if (global_flags.x264_preset.empty()) {
294 global_flags.x264_preset = X264_DEFAULT_PRESET;
297 for (pair<int, int> mapping : global_flags.default_stream_mapping) {
298 if (mapping.second >= global_flags.num_cards) {
299 fprintf(stderr, "ERROR: Signal %d mapped to card %d, which doesn't exist (try adjusting --num-cards)\n",
300 mapping.first, mapping.second);