List supported filters, codecs and container formats.
av_encoders() av_decoders() av_filters() av_muxers() av_demuxers()
Encoders and decoders convert between raw video/audio frames and compressed stream data for storage or transfer. However such a compressed data stream by itself does not constitute a valid video format yet. Muxers are needed to interleave one or more audio/video/subtitle streams, along with timestamps, metadata, etc, into a proper file format, such as mp4 or mkv.
Conversely, demuxers are needed to read a file format into the seperate data streams for subsequent decoding into raw audio/video frames. Most operating systems natively support demuxing and decoding common formats and codecs, needed to play those videos. However for encoding and muxing such videos, ffmpeg must have been configured with specific external libraries for a given codec or format.