ps2ts(1)

ps2ts(1) General Commands Manual ps2ts(1)

NAME

ps2ts — Extract a program stream from a Transport Stream

SYNOPSIS

ps2ts -pid pid | -video | -audio [-err stdout] [-err stderr] [-verbose | -v] [-quiet | -q] [-max max_pkts | -m max_pkts] [-dvd | -notdvd | -nodvd] [-vstream vstream_no] [-astream astream_no] [-ac3stream ac3stream_no] [-host host[:port]] [-vpid vpid_no] [-apid apid_no] [-noaudio] [-pmt pmt_pid_no] [-prepeat pat_freq] [-pad pad_pkts] [-h264 | -avc | -h262 | -mp42 | -vtype video_type] [-dolby dvd | atsc] in_file | -stdin out_file | -stdout

DESCRIPTION

Convert an H.222 program stream to H.222 transport stream.

This program does not make use of any Program Stream Map packets in the data (mainly because I have yet to see data with any). This means that the program has to determine the stream type of the data based on the first few ES units.

This program does not output more than one video and one audio stream. If the program stream data contains more than one of each, the first will be used, and the others ignored (with a message indicating this).

It is assumed that the video stream will contain DTS values in its PES packets at reasonable intervals, which can be used as PCR values in the transport stream, and thus the video stream’s PID can be used as the PCR PID in the transport stream.

Files

in_file

is a file containing the program stream data (but see -stdin below)

out_file

is a transport stream file (but see -stdout and -host below)

input switches

-stdin

take input from <stdin>, instead of a named file

-dvd

The PS data is from a DVD. This is the default. This switch has no effect on MPEG-1 PS data.

-notdvd, -nodvd

The PS data is not from a DVD. The DVD specification stores AC-3 (Dolby), DTS and other audio in a specialised manner in private_stream_1.

-vstream vstream_no

Take video from video stream vstream_no (0..7). The default is the first video stream found.

-astream astream_no

Take audio from audio stream astream_no (0..31). The default is the first audio stream found (this includes private_stream_1 on non-DVD streams).

-ac3stream astream_no

Take audio from AC3 substream ac3stream_no (0..7), from private_stream_1. This implies -dvd. (If audio is being taken from a substream, the user is assumed to have determined which one is wanted, e.g., using psreport)

Output Switches

-err stdout

Write error messages to standard output (the default)

-err stderr

Write error messages to standard error (Unix traditional)

-host host[:Arport]

Writes output (over TCP/IP) to the named <host>, instead of to a named file. If <port> is not specified, it defaults to 88.

-vpid vpid_no

vpid_no is the video PID to use for the data. Use ’-vpid 0x<pid>’ to specify a hex value. Defaults to 0x68.

-apid apid_no

apid_no is the audio PID to use for the data. Use ’-apid 0x<pid>’ to specify a hex value. Defaults to 0x67.

-noaudio

Don’t output the audio data

-pmt pmt_pid_no

pmt_pid_no is the PMT PID to use. Use ’-pmt 0x<pid>’ to specify a hex value. Defaults to 0x66

-prepeat pat_freq

Output the program data (PAT/PMT) after every pat_freq PS packs. Defaults to 100.

-pad pad_pkts

Pad the start with pad_pkts filler TS packets, to allow a TS reader to synchronize with the datastream. Defaults to 8.

General switches

-v, -verbose

Print a ’v’ for each video packet and an ’a’ for each audio packet, as it is read

-q, -quiet

Only output error messages

-max max_pkts, -m max_pkts

Maximum number of PS packets to read.

Stream type

When the TS data is being output, it is flagged to indicate whether it conforms to H.262, H.264, etc. It is important to get this right, as it will affect interpretation of the TS data.

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.

-mp42

Force the program to treat the input as MPEG-4/Part 2.

-vtype video_type

Force the program to treat the input as video of stream type <type> (e.g., 0x42 means AVS video). It is up to the user to specify a valid <type>.

If the audio stream being output is Dolby (AC-3), then the stream type used to output it differs for DVB (European) and ATSC (USA) data. It may be specified as follows:

-dolby dvb

Use stream type 0x06 (the default)

-dolby atsc

Use stream type 0x81

SEE ALSO

esdots(1), GNU October 28, 2015 ps2ts(1)