The keyword string appears to be a specific technical identifier or a concatenated search string rather than a standard topic with a documented history. In digital contexts, such strings are often used as unique file names, database entry codes, or legacy search queries for specific media files. Based on the structure of the string, Decoding the Identifier
: This part might indicate that the file was converted on a specific date, October 21, 2022 (021021 in YYMMDD format, assuming a two-digit year for the 21st century). hsoda030engsub convert021021 min full
To hardcode the SRT into the video:
ffmpeg -y -i hsoda030.mkv -c:v libx264 -b:v 2500k -pass 1 -preset slow -an -f mp4 /dev/null ffmpeg -y -i hsoda030
: Use VLC Media Player or MPC-HC , which natively support embedded English subtitles (engsub). database entry codes
(Replace track index 2 with the subtitle track index from ffprobe/mkvinfo.)