Where the DEV and SUBDEV components are optional. The name of thedevice to capture has to be an ALSA card identifier. This device allows capturing from an ALSA device. To enable this input device during configuration you need libasoundinstalled on your system. alsa ALSA (Advanced Linux Sound Architecture) input device. The option ``-devices'' of the ff* tools will display the list ofsupported input devices.Ī description of the currently available input devices follows. You can disable all the input devices using the configure option``-disable-indevs'', and selectively enable an input device using theoption "-enable-indev= INDEV ``, or you can disable a particularinput device using the option ''-disable-indev= INDEV ".
You can list all available ones using theconfigure option ``-list-indevs''. When you configure your FFmpeg build, all the supported input devicesare enabled by default. INPUT DEVICES Input devices are configured elements in FFmpeg which enable accessingthe data coming from a multimedia device attached to your system.
Options may be set by specifying - option value in theFFmpeg tools, or by setting the value explicitly in the device "AVFormatContext" options or using the libavutil/opt.h APIfor programmatic use. In addition each input or output device may support so-called privateoptions, which are specific for that component.
Namely, an input device is considered like a demuxer, andan output device like a muxer, and the interface and generic deviceoptions are the same provided by libavformat (see the ffmpeg-formatsmanual). DEVICE OPTIONS The libavdevice library provides the same interface aslibavformat. Index NAMEffmpeg-devices - FFmpeg devices DESCRIPTION This document describes the input and output devices provided by thelibavdevice library.
0 kommentar(er)
