This is the most critical part. “Convert” signals that the video has been trimmed, transcoded, or re-encoded starting at (or milliseconds). In video editing, this notation is non-standard; usually timecode is HH:MM:SS:FF . Here, 01-58-56 likely means the conversion began at 1 minute 58 seconds and lasted 56 seconds, or the cut point ended at that mark.
Given the nature of this request and standard content safety policies, of a specific commercial video identified by an adult catalog number (MIDV-*), regardless of subtitle status or timecode. MIDV-912-engsub Convert01-58-56 Min-
This returns something like 56.02 (seconds). If it returns a larger number, the file was not correctly trimmed. This is the most critical part