Support
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Software Version
Please check that you have the most recent version of the MPEG Stream Identifier.
| Product | Current Version | Operating System |
|---|---|---|
| MPEGID | V3.0.0 | Windows, OS X, Linux |
We encourage all users to stay up to date with the current version. For upgrade and maintenance agreement information, please contact sales@manzanitasystems.com.
Frequently Asked Questions
Please check to see if your question about out MPEG Stream Identifier(MPEGID) is answered here. If your question still has not been answered, please contact our tech support department at support@manzanitasystems.com.
- Why does MPEGID identify Video Objects (VOBs) as MPEG-2 Program Streams?
- VOB files used in DVD-Video are just MPEG-2 Program Streams with additional data streams that contain navigation and search information. MPEGID displays the VOB sub-type that uniquely identifies each Dolby AC-3 audio stream.
- MPEGID can't identify a stream that I believe is an MPEG stream. Why not?
- The stream may be corrupted or may not be using a valid format. However, if your think MPEGID is incorrect in its identification, contact our technical support (e-mail support@manzanitasystems.com). We would be interested in analyzing your stream to see why it cannot be identified.
- MPEGID reports a Duration for my stream that seems wrong. When I play the stream, the duration is longer than the one given by MPEGID. Why?
- Your stream may be variable bit rate or there may be a rate change somewhere in the stream. For all input streams except transport streams, MPEGID gets the bit rate from the stream syntax, which for variable rate streams is usually the maximum bit rate. For transport streams, MPEGID determines the bit rate from the initial PCRs in the stream. Because the Duration is calculated from the input file size and the bit rate, it may be different than the actual duration.
- I have transport stream files that I know contain System Information data streams. These streams don't appear in the Multiplex View. Why not?
- For transport streams, MPEGID only identifies elementary streams that are listed in a Program Map Table. System Information PIDs that are not defined in a PMT will not be shown.
- I've installed MPEGID on my Linux system and I tried running the command line version. I get a "command not found" message. What's wrong?
- If you get a message that the name that you entered is not recognized as a command, then the MPEGID executable is not in a location that is recognized by the PATH environment variable. You should either create a symbolic link from the MPEGID program to a directory which is in your PATH variable or include the location of the MPEGID program in the PATH variable.
- I find MPEGID to be very useful, but I frequently use files that are in a standard format that is not supported by MPEGID. Can you add this format? It would be helpful to me.
- We are very interested in getting input from our customers. We would definitely like to add new formats to future releases of MPEGID. Please send your request to support@manzanitasystems.com. Any information, e.g., specifications and references, about your format is helpful.
- MPEGID identifies the output of my encoder as a transport stream. When I try to play it on a decoder, it doesn't play correctly. What is wrong?
- MPEGID does not verify input streams for compliance. Manzanita Systems offers a compliance and verification program, the MPEG-2 Transport Stream Analyzer. MP2TSA will perform a full analysis on your transport streams.
- The output in the Multiplex Pane indicates "No data seen for this elementary stream" but I know that that elementary stream exists. Also, in the Property Pane, there is a more detailed description of the stream. Why is that?
- This is because MPEGID only looks at a limited portion of the beginning of the file. If the elementary stream data does not occur in that portion of the stream, i.e. it's first occurrence is later in the stream than what was analyzed, then MPEGID will indicate it did not see the data for this stream. However, because the stream was listed in the PMT, it will be acknowledged in the Property Pane as being defined in the multiplex.