- { "size", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}},
- { "s", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}},
- { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, },
- { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, },
- { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, },
- { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl = 1}, 0, INT_MAX },
+ { "size", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}, .flags = FLAGS },
+ { "s", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = "320x240"}, .flags = FLAGS },
+ { "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, .flags = FLAGS },
+ { "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, .flags = FLAGS },
+ { "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = FLAGS },
+ { "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl = 1}, 0, INT_MAX, FLAGS },