How to: Video Format Options:
-f, --format FORMAT             Video format code, see "FORMAT SELECTION"
                                    for more details
    -S, --format-sort SORTORDER     Sort the formats by the fields given, see
                                    "Sorting Formats" for more details
    --format-sort-force             Force user specified sort order to have
                                    precedence over all fields, see "Sorting
                                    Formats" for more details (Alias: --S-force)
    --no-format-sort-force          Some fields have precedence over the user
                                    specified sort order (default)
    --video-multistreams            Allow multiple video streams to be merged
                                    into a single file
    --no-video-multistreams         Only one video stream is downloaded for each
                                    output file (default)
    --audio-multistreams            Allow multiple audio streams to be merged
                                    into a single file
    --no-audio-multistreams         Only one audio stream is downloaded for each
                                    output file (default)
    --prefer-free-formats           Prefer video formats with free containers
                                    over non-free ones of the same quality. Use
                                    with "-S ext" to strictly prefer free
                                    containers irrespective of quality
    --no-prefer-free-formats        Don't give any special preference to free
                                    containers (default)
    --check-formats                 Make sure formats are selected only from
                                    those that are actually downloadable
    --check-all-formats             Check all formats for whether they are
                                    actually downloadable
    --no-check-formats              Do not check that the formats are actually
                                    downloadable
    -F, --list-formats              List available formats of each video.
                                    Simulate unless --no-simulate is used
    --merge-output-format FORMAT    Containers that may be used when merging
                                    formats, separated by "/", e.g. "mp4/mkv".
                                    Ignored if no merge is required. (currently
                                    supported: avi, flv, mkv, mov, mp4, webm)