equivalence_check

Author: Leonardo de Sousa Marques Affiliation: Embedded Computing Lab (ECL), Federal University of Santa Catarina (UFSC)

Description:

This module checks MD5 hashes for encoded and decoded LFs among codecs.

get_rate_string(rate)[source]

Convert a bitrate value to a formatted string representation.

Removes trailing ‘.0’ and leading ‘0.’ from float representations for cleaner display in output tables.

Parameters:

rate (float) – Bitrate value to convert

Returns:

Formatted string representation of the bitrate

Return type:

str

md5_from_logs(codec_results, lf, rate, op_type)[source]

Extract MD5 hash from codec execution logs.

Searches for the most recently modified execution log in the codec results directory and extracts the MD5 hash for a specific light field, bitrate, and operation type (encoded or decoded).

Parameters:

  • codec_results (Path) – Path to codec results directory

  • lf (str) – Light field name

  • rate (str) – Target bitrate value

  • op_type (str) – Operation type (‘encoded’ or ‘decoded’)

Returns:

MD5 hash string or None if not found

Return type:

str | None

main(configuration=None)[source]

Check equivalence of MD5 hashes across multiple codec runs.

Compares MD5 checksums for encoded and decoded light fields across multiple codec implementations according to configured equivalence rules. Generates comparison tables in multiple formats (LaTeX, HTML, JSON, text).

Parameters:

configuration (ConfigurationReader) – Configuration reader instance (read from argv if None)

Returns:

None

Return type:

None