Also see the Stream specifiers chapter.Īs a general rule, options are applied to the next specified file. Refers to the fourth stream in the third input file. Similarly, streams within a file are referred to by their indices. To refer to input files in options, you must use their indices (0-based). Option (see the Stream selection chapter). Selecting which streams from which inputs will go into which output is either done automatically or with the The allowed number and/or types of streams may 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 url.Įach input or output url can, in principle, contain any number of streams of different types (video/audio/subtitle/attachment/data). Option, and writes to an arbitrary number of output "files", which are specified by a plain output url. Reads from an arbitrary number of input "files" (which can be regular files, pipes, network streams, grabbing devices, etc.), specified by the It can also convert between arbitrary sample rates and resize video on the fly with a high quality polyphase filter. The problem only comes from the -vf because it works well without it.Is a very fast video and audio converter that can also grab from a live audio/video source. vf "drawtext=text='SOME TEXT':x=(w-text_w):y=(h-text_h):fontfile=OpenSans.ttf:fontsize=30:fontcolor=white" \ I can't use another method for concatenation, so how should I do ? (I don't mind about using several commands, as long as everything is done live and can be streamed directly)īy the way, here's an example command I use : ffmpeg \ The problem is that I used complex filter to concatenate the videos, and -vf to drawtext, but ffmpeg says I can't use complex filters and -vf in the same time. I have a ffmpeg command that plays several videos from a folder to a live stream, but I would also like to add text overlays over it.
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