Demuxer image2pipe [piped image2 sequence]:
image2pipe demuxer AVOptions:
  -framerate         <video_rate> .D...... set the video framerate (default "25")
  -loop              <boolean>    .D...... force loop over input file sequence (default false)
  -pattern_type      <int>        .D...... set pattern type (from 0 to INT_MAX) (default 4)
     glob_sequence                .D...... select glob/sequence pattern type
     glob                         .D...... select glob pattern type
     sequence                     .D...... select sequence pattern type
     none                         .D...... disable pattern matching
  -pixel_format      <string>     .D...... set video pixel format
  -start_number      <int>        .D...... set first number in the sequence (from INT_MIN to INT_MAX) (default 0)
  -start_number_range <int>        .D...... set range for looking at the first sequence number (from 1 to INT_MAX) (default 5)
  -video_size        <image_size> .D...... set video size
  -frame_size        <int>        .D...... force frame size in bytes (from 0 to INT_MAX) (default 0)
  -ts_from_file      <int>        .D...... set frame timestamp from file's one (from 0 to 2) (default none)
     none                         .D...... none
     sec                          .D...... second precision
     ns                           .D...... nano second precision


