Use HEVC (libx265) for general purposes. Use AV1 only if you have a powerful CPU/GPU and don’t need immediate playback on older devices. 3. Preserving English Subtitles During Conversion Your file has engsub – we must ensure subtitles aren’t dropped. Case A: Soft Subtitles (Text-based, SRT/ASS) These are ideal. They can be copied without re-encoding:
It is important to clarify that the search term does not correspond to a known, widely recognized film, television series, or official software product as of my latest knowledge update. hsoda030engsub convert021021 min best
ffprobe -i hsoda030_conv021021_minbest.mp4 Look for Stream #0:2(eng): Subtitle . If file size is critical (e.g., exact target of 500 MB), use two-pass encoding: Use HEVC (libx265) for general purposes
# First pass (log only) ffmpeg -i input.mkv -c:v libx265 -b:v 800k -x265-params pass=1 -f mp4 /dev/null ffmpeg -i input.mkv -c:v libx265 -b:v 800k -x265-params pass=2 -c:a aac -c:s copy output.mp4 Preserving English Subtitles During Conversion Your file has
| Codec | Compression | Quality | Encoding Speed | Hardware Support | |-------|-------------|---------|----------------|------------------| | | ~50% better than H.264 | Excellent | Slow | Most devices post-2016 | | AV1 | ~30% better than HEVC | Excellent | Very slow | Limited (new GPUs/phones) |
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