Files¶

in_file

is the Elementary Stream file (but see -stdin below)

What to report¶

The default is to report on H.262 items, AVS frames or H.264 NAL units. Other choices are:

-frames

Report by frames. The default for AVS.

-findfields

Report on any fields in the data. Ignored for AVS.

-afd

Report (just) on AFD changes in H.262. Ignored for the other types of file.

-es

Report on ES units.

Reporting on frames may be modified by:

-framesize

Report on the sizes of frames (mean, etc.).

-frametype

Report on the numbers of different type of frame.

(in fact, both of these imply -frame).

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

For H.262 data, output information about the data in each MPEG-2 item. For ES units, output information about the data in each ES unit. Ignored for H.264 data.

-q, -quiet

Only output summary information (i.e., the number of entities in the file, statistics, etc.)

-x

Show details of each NAL unit as it is read.

-stdin

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

-max max_units, -m max_units

Maximum number of NAL units/MPEG-2 items/AVS frames/ES units to read. If -frames, then the program will stop after that many frames. If reading 'frames', MPEG-2 and AVS will also count sequence headers and sequence end.

-pes, -ts

The input file is TS or PS, to be read via the PES to ES reading mechanisms

-pesreport

Report on PES headers. Implies -pes and -q.

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, H.262 or AVS 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.

-avs

Force the program to treat the input as AVS.