Number and subdevice number (-1 means any). The three arguments (in order: CARD, DEV, SUBDEV) specify card number or identifier, device Where the DEV and SUBDEV components are optional. This device allows capturing from an ALSA device. To enable this input device during configuration you need libasound installed on your The option "-devices" of the ff* tools will display the list of supported input devices.Ī description of the currently available input devices follows.ĪLSA (Advanced Linux Sound Architecture) input device. Selectively enable an input device using the option "-enable-indev= INDEV", or you canĭisable a particular input device using the option "-disable-indev= INDEV". You can disable all the input devices using the configure option "-disable-indevs", and You can list all available ones using the configure option "-list-indevs". When you configure your FFmpeg build, all the supported input devices are enabled byĭefault.
Input devices are configured elements in FFmpeg which enable accessing the data comingįrom a multimedia device attached to your system. Value explicitly in the device "AVFormatContext" options or using the libavutil/opt.h API
Options may be set by specifying - option value in the FFmpeg tools, or by setting the In addition each input or output device may support so-called private options, which are Namely, an inputĭevice is considered like a demuxer, and an output device like a muxer, and the interfaceĪnd generic device options are the same provided by libavformat (see the ffmpeg-formats The libavdevice library provides the same interface as libavformat. This document describes the input and output devices provided by the libavdevice library.
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