NAME

       esfilter — Output a filtered or truncated version of an elementary stream

SYNOPSIS

       esfilter  -copy  |  -filter  |  -strip  [-err  stdout]  [-err  stderr]  [-verbose  |  -v]  [-quiet  | -q]
                [-host dest_ip[:port]] [-max  max_frames  |  -m  max_frames]  [-freq  keep_frequency]  [-allref]
                [-tsout] [-pes | -ts] [-h264 | -avc | -h262] in_file | -stdin out_file | -stdout

DESCRIPTION

       Output  a  filtered or truncated version of an elementary stream.  The input is either H.264 (MPEG-4/AVC)
       or H.262 (MPEG-2).  The output is either an elementary stream, or an H.222 transport stream

       If output is to an H.222 Transport Stream, then fixed values for the PMT PID (0x66) and video PID  (0x68)
       are used.

   Files
       in_file
               is the input elementary stream (but see -stdin below).

       out_file
               is  the  output stream, either an equivalent elementary stream, or an H.222 Transport Stream (but
               see -stdout and -host below).

   Actions
       -copy   Copy the input data to the output file (mostly useful as a way of truncating data with -max)

       -filter
               Filter  data  from  input  to  output,  aiming  to  keep  every  keep_frequencyth  frame   (where
               keep_frequency is specified by -freq).

       -strip  For  H.264,  output  just  the IDR and I pictures, for H.262, output just the I pictures, but see
               -allref below.

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

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

       -stdin  Input from standard input, instead of a file

       -v, -verbose
               Output extra information about packets

       -q, -quiet
               Only output error messages

       -host dest_ip[:port]
               Writes output (over TCP/IP) to the named host, instead of  to  a  named  file.  If  port  is  not
               specified, it defaults to 88. Implies -tsout.

       -max max_frames, -m max_frames
               Maximum number of frames to read (for -filter and -strip), or ES units/NAL units (for -copy).

       -freq keep_frequency
               Specify the frequency of frames to try to keep with -filter. Defaults to 8.

       -allref
               With -strip, keep all reference pictures (H.264) or all I and P pictures (H.262)

       -tsout  Output data as Transport Stream PES packets (the default is as Elementary Stream)

       -pes, -ts
               The  input  file  is  TS  or  PS, to be read via the PES->ES reading mechanisms. Not allowed with
               -stdin.

   Stream type:
       If input is from a file, then the program will look at the start of the file to determine if  the  stream
       is  H.264  or  H.262  data. This process may occasionally come to the wrong conclusion, in which case the
       user can override the choice using the following switches.

       If input is from standard input (via -stdin), then it is not possible for the program  to  make  its  own
       decision  on  the input stream type.  Instead, it defaults to H.262, and relies on the user indicating if
       this is wrong.

       -h264, -avc
               Force the program to treat the input as MPEG-4/AVC.

       -h262   Force the program to treat the input as MPEG-2.

SEE ALSO

       esdots(1),

Debian                                          October 28, 2015                                     ESFILTER(1)