{"force_fps",OPT_BOOL|OPT_EXPERT|OPT_VIDEO|OPT_SPEC,{.off=OFFSET(force_fps)},"force the selected framerate, disable the best supported framerate selection"},
{"streamid",HAS_ARG|OPT_EXPERT|OPT_FUNC2,{.func2_arg=opt_streamid},"set the value of an outfile streamid","streamIndex:value"},
{"force_key_frames",OPT_STRING|HAS_ARG|OPT_EXPERT|OPT_VIDEO|OPT_SPEC,{.off=OFFSET(forced_key_frames)},"force key frames at specified timestamps","timestamps"},
{"b",HAS_ARG|OPT_VIDEO|OPT_FUNC2,{(void*)opt_bitrate},"video bitrate (please use -b:v)","bitrate"},
{"b",HAS_ARG|OPT_VIDEO|OPT_FUNC2,{.func2_arg=opt_bitrate},"video bitrate (please use -b:v)","bitrate"},
/* audio options */
{"aframes",HAS_ARG|OPT_AUDIO|OPT_FUNC2,{.func2_arg=opt_audio_frames},"set the number of audio frames to record","number"},