kopia lustrzana https://github.com/F5OEO/tstools
109 wiersze
3.2 KiB
Groff
109 wiersze
3.2 KiB
Groff
.\" The following commands are required for all man pages.
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.Dd October 28, 2015
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.Dt ESDOTS 1
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.Os
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.Sh NAME
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.Nm esdots
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.Nd Present the content of an ES as a sequence of characters
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.\" This next command is for sections 2 and 3 only.
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.\" .Sh LIBRARY
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.Sh SYNOPSIS
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.Nm esdots
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.Op Fl "err stdout"
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.Op Fl "err stderr"
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.Op Fl verbose | Fl v
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.Op Fl max Ar max_units | Fl m Ar max_units
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.Op Fl pes | ts
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.Op Fl hasheos
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.Op Fl es
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.Op Fl gop
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.Op Fl fr Ar frame_rate
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.Ar in_file | Fl stdin
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.Sh DESCRIPTION
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Present the content of an H.264 (MPEG-4/AVC), H.262 (MPEG-2) or AVS
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elementary stream as a sequence of characters, representing access
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units/MPEG-2 items/AVS items.
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.Pp
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(Note that for H.264 it is access units and not frames that are
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represented, and for H.262 it is items and not pictures.)
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.Ss Files
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.Bl -tag
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.It Ar in_file
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is an H.222 Transport Stream file (but see
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.Fl stdin Ns )
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.El
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.Ss Switches
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.Bl -tag
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.It Fl "err stdout"
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Write error messages to standard output (the default)
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.It Fl "err stderr"
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Write error messages to standard error (Unix traditional)
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.It Fl stdin
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Input from standard input, instead of a file
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.It Fl v , Fl verbose
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Output extra information about packets
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.It Fl q , Fl quiet
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Only output error messages
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.It Fl max Ar max_units , Fl m Ar max_units
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Maximum number of entities to read
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.It Fl pes , ts
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The input file is TS or PS, to be read via the
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PES->ES reading mechanisms
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.It Fl hasheos
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Print a # on finding an EOS (end-of-stream) NAL unit
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rather than stopping (only applies to H.264)
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.It Fl es
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Report ES units, rather than any 'higher' unit
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(not necessarily suppported for all file types)
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.It Fl gop
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Show the duration of each GOP (for MPEG-2 steams)
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OR the distance between random access points (H.264)
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.It Fl fr
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Set the video frame rate (default = 25 fps)
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.El
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.Ss Stream type:
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If input is from a file, then the program will look at the start of
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the file to determine if the stream is H.264 or H.262 data. This
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process may occasionally come to the wrong conclusion, in which case
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the user can override the choice using the following switches.
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.Pp
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For AVS data, the program will never guess correctly, so the user must
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specify the file type, using -avs.
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.Pp
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If input is from standard input (via -stdin), then it is not possible
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for the program to make its own decision on the input stream type.
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Instead, it defaults to H.262, and relies on the user indicating if
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this is wrong.
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.Bl -tag
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.It Fl h264 , avc
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Force the program to treat the input as MPEG-4/AVC.
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.It Fl h262
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Force the program to treat the input as MPEG-2.
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.It Fl avs
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Force the program to treat the input as AVS.
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.El
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.\" The following cnds should be uncommented and
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.\" used where appropriate.
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.\" .Sh IMPLEMENTATION NOTES
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.\" This next command is for sections 2, 3 and 9 function
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.\" return values only.
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.\" .Sh RETURN VALUES
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.\" This next command is for sections 1, 6, 7 and 8 only.
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.\" .Sh ENVIRONMENT
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.\" .Sh FILES
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.\" .Sh EXAMPLES
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.\" This next command is for sections 1, 6, 7, 8 and 9 only
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.\" (command return values (to shell) and
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.\" fprintf/stderr type diagnostics).
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.\" .Sh DIAGNOSTICS
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.\" .Sh COMPATIBILITY
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.\" This next command is for sections 2, 3 and 9 error
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.\" and signal handling only.
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.\" .Sh ERRORS
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.Sh SEE ALSO
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.Xr esdots 1 ,
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.\" .Sh STANDARDS
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.\" .Sh HISTORY
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.\" .Sh AUTHORS
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.\" .Sh BUGS
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