Muxer dash [DASH Muxer]:
    Common extensions: mpd.
    Default video codec: h264.
    Default audio codec: aac.
dash muxer AVOptions:
  -adaptation_sets   <string>     E........ Adaptation sets. Syntax: id=0,streams=0,1,2 id=1,streams=3,4 and so on
  -window_size       <int>        E........ number of segments kept in the manifest (from 0 to INT_MAX) (default 0)
  -extra_window_size <int>        E........ number of segments kept outside of the manifest before removing from disk (from 0 to INT_MAX) (default 5)
  -min_seg_duration  <int>        E........ minimum segment duration (in microseconds) (will be deprecated) (from 0 to INT_MAX) (default 5000000)
  -seg_duration      <duration>   E........ segment duration (in seconds, fractional value can be set) (default 5)
  -remove_at_exit    <boolean>    E........ remove all segments when finished (default false)
  -use_template      <boolean>    E........ Use SegmentTemplate instead of SegmentList (default true)
  -use_timeline      <boolean>    E........ Use SegmentTimeline in SegmentTemplate (default true)
  -single_file       <boolean>    E........ Store all segments in one file, accessed using byte ranges (default false)
  -single_file_name  <string>     E........ DASH-templated name to be used for baseURL. Implies storing all segments in one file, accessed using byte ranges
  -init_seg_name     <string>     E........ DASH-templated name to used for the initialization segment (default "init-stream$RepresentationID$.$ext$")
  -media_seg_name    <string>     E........ DASH-templated name to used for the media segments (default "chunk-stream$RepresentationID$-$Number%05d$.$ext$")
  -utc_timing_url    <string>     E........ URL of the page that will return the UTC timestamp in ISO format
  -method            <string>     E........ set the HTTP method
  -http_user_agent   <string>     E........ override User-Agent field in HTTP header
  -http_persistent   <boolean>    E........ Use persistent HTTP connections (default false)
  -hls_playlist      <boolean>    E........ Generate HLS playlist files(master.m3u8, media_%d.m3u8) (default false)
  -streaming         <boolean>    E........ Enable/Disable streaming mode of output. Each frame will be moof fragment (default false)
  -timeout           <duration>   E........ set timeout for socket I/O operations (default -0.000001)
  -index_correction  <boolean>    E........ Enable/Disable segment index correction logic (default false)
  -format_options    <string>     E........ set list of options for the container format (mp4/webm) used for dash
  -global_sidx       <boolean>    E........ Write global SIDX atom. Applicable only for single file, mp4 output, non-streaming mode (default false)
  -dash_segment_type <int>        E........ set dash segment files type (from 0 to 2) (default auto)
     auto            0            E........ select segment file format based on codec
     mp4             1            E........ make segment file in ISOBMFF format
     webm            2            E........ make segment file in WebM format
  -ignore_io_errors  <boolean>    E........ Ignore IO errors during open and write. Useful for long-duration runs with network output (default false)
  -lhls              <boolean>    E........ Enable Low-latency HLS(Experimental). Adds #EXT-X-PREFETCH tag with current segment's URI (default false)
  -master_m3u8_publish_rate <int>        E........ Publish master playlist every after this many segment intervals (from 0 to UINT32_MAX) (default 0)


