Diagnostic Instrumentation

Table of Contents | Internal operation | Internal operation: Motion data buffer

Internal operation and motion data transfer

Motion data transfer

In the encoder, motion data for each motion compensated frame of the sequence is output for use in the diagnostic tool. A text file is created in the same location as the encoded output sequence and is given the name [output_file].imt. Data for each frame is then written to this file. The vast majority of data is encapsulated in the MEData class and hence its operator<< and operator>> are overloaded. The motion data text file structure is shown in Figure 7.


Figure 7. Frame motion data text file structure

Two-dimensional array data is formatted with carriage returns after each row in order for the motion data to be easily viewed in a spredsheet.

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