Allowed number and/or types of streams can be limited by the container format. Anything found on the command line which cannot be interpreted as an option is considered to be an output filename.Įach input or output file can in principle contain any number of streams of different types (video/audio/subtitle/attachment/data). It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter.įfmpeg reads from an arbitrary number of input "files" (which can be regular files, pipes, network streams, grabbing devices, etc.), specified by the -i option, and writes to an arbitrary number of output "files", which are specified by a plain output filename. 29.7 color, nullsrc, rgbtestsrc, smptebars, testsrcįfmpeg ].įfmpeg is a very fast video and audio converter that can also grab from a live audio/video source.20.17 rtmp, rtmpe, rtmps, rtmpt, rtmpte.17.11 segment, stream_segment, ssegment.14.1.4 Floating-Point-Only AC-3 Encoding Options.14.1.2.2 Extended Bitstream Information - Part 2.14.1.2.1 Extended Bitstream Information - Part 1.
7.4 Video and Audio file format conversion.
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