Because the main interface to read and analyze MPEG frames is based on the (L)GPL FFMpeg library the tool can also read, analyze and display many other video codecs than MPEG1 and MPEG2. But don't complain if you supply a file other than the main types MPEG1 and MPEG2 in the case of not working or even crashing. This may happen from time to time.

A second interface for reading MPEG's is integrated and used in Bitrate Viewer whose reason for existence is the pre-estimation of the frame count for an MPEG file just opened without reading it completely. This interface only treats MPEG1 and MPEG2 file types. When you open such a file, this interface estimates the frame count prior to the analysis so the tool can do a proper preview while reading and analyzing the rest of it - in most cases.

You may find especially Panasonic's VRO demuxed files or other MPEG files with bad timestamps within. These markers will cause a bad frame count estimation. In those cases the preview will be bad scaled until the file is completely read.

There are many different MPEG encoders out there and also many possibilities to interpret ISO/IEC MPEG specifications. Therefore it is a high level task to calculate or estimate the frame count of an MPEG file prior reading it completely. Basically the frame count estimation algorithm is optimized to finish its job within a second or less. On MPEG1/MPEG2 ES and PES files this can be accomplished normally within some hundred milliseconds (if you have the file of interest on a standard hard drive that can read at appropriate speed). If you open VOB files it may take longer than a second - but up to now it didn't ever exceed two seconds.

Main Features:

- Main Menu
- Drag & Drop
- Double Size Mode
- 4 Calculation Algorithms
- Bitrate Viewer Cache
- Indicator LED
- Timecode status
- CRC status display
- Program/PID display
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