NAME

     stream-type — Guess the type of a stream file

SYNOPSIS

     stream-type [-err stdout] [-err stderr] [-verbose | -v] [-quiet | -q] in_file

DESCRIPTION

     Attempt to determine if an input stream is Transport Stream, Program Stream, or Elementary
     Stream, and if the latter, if it is H.262 or H.264 (i.e., MPEG-2 or MPEG-4/AVC
     respectively).  The mechanisms used are fairly crude, assuming that:

     -   data is byte aligned

     -   for TS, the first byte in the file will be the start of a NAL unit, and PAT/PMT packets
         will be findable

     -   for PS, the first packet starts immediately at the start of the file, and is a pack
         header

     -   if the first 1000 packets could be H.262 *or* H.264, then the data is assumed to be
         H.264 (the program doesn't try to determine sensible sequences of H.262/H.264 packets,
         so this is a reasonable way of guessing)
     It is quite possible that data which is not relevant will be misidentified

   Files
     in_file
             is the file to analyse

   Switches
     -err stdout
             Write error messages to standard output (the default)

     -err stderr
             Write error messages to standard error (Unix traditional)

     -v, -verbose
             Output more detailed information about how it is making its decision

     -q, -quiet
             Only output error messages

RETURN VALUES

     The program exit value is:

     10      if it detects Transport Stream,

     11      if it detects Program Stream,

     12      if it detects Elementary Stream containing H.262 (MPEG-2),

     14      if it detects Elementary Stream containing H.264 (MPEG-4/AVC),

     5       if it looks like it might be PES,

     9       if it really cannot decide, or

     0       if some error occurred

SEE ALSO

     esdots(1),