Show available formats (including devices). filters option to get a list of all filters.

Print detailed information about the filter name filter_name. formats option to get a list of all muxers and demuxers. Print detailed information about the muxer named muxer_name. formats option to get a list of all demuxers and muxers. Print detailed information about the demuxer named demuxer_name. encoders option to get a list of all encoders. Print detailed information about the encoder named encoder_name. decoders option to get a list of all decoders. Print detailed information about the decoder named decoder_name. Print complete list of options, including shared and private optionsįor encoders, decoders, demuxers, muxers, filters, etc. Print advanced tool options in addition to the basic tool options. If no argument is specified, only basic (non advanced) tool An optional parameter may be specified to print help about a specific These options are shared amongst the ff* tools. Note that in ffmpeg, matching by metadata will only work properly for

Matches streams with usable configuration, the codec must be defined and theĮssential information such as video dimension or audio sample rate must be present. Value is not given, matches streams that contain the given tag with any Matches streams with the metadata tag key having the specified value. If stream_index is given, then it matches the stream with number stream_index If stream_index is given, then it matches Streams, 'V' only matches video streams which are not attached pictures, video Stream_type stream_type is one of following: 'v' or 'V' for video, 'a' for audio, 's'įor subtitle, 'd' for data, and 't' for attachments. Or '-codec: copy' would copy all the streams without reencoding. the stream specifier in '-b:a 128k' matches all audioĪn empty stream specifier matches all streams. Would select the ac3 codec for the second audio stream.Ī stream specifier can match several streams, so that the option is applied to all 'a:1' stream specifier, which matches the second audio stream. Stream specifiersĪre used to precisely specify which stream(s) a given option belongs to.Ī stream specifier is a string generally appended to the option name and Some options are applied per-stream, e.g. Will set the boolean option with name ``foo'' to false. Options which do not take arguments are boolean options, and set theĬorresponding value to true. KB', 'MiB', 'G' and 'B' as number suffixes.

Ffmpeg crop avoptions explained