Shrinking X265

is a legitimate skill—one that preserves your hard drive space and bandwidth. But it demands respect. The difference between a "transparent" encode (looks identical to source) and a "trash" encode (blocky, waxy, banded) is just a few CRF points or a single misconfigured psy-rd flag.

ffmpeg -i input.mkv -c:v libx265 -crf 30 -preset slow -x265-params "no-sao=1:deblock=-4,-4:psy-rd=1.0" -c:a aac -b:a 96k output.mp4 shrinking x265

A CRF of 20 to 23 is generally recommended for a balance of high quality and small size. is a legitimate skill—one that preserves your hard

If you don’t have the source, your only legitimate option is to use a (denoise or deblock) to simplify the image before re-encoding—but expect quality loss. shrinking x265

is a legitimate skill—one that preserves your hard drive space and bandwidth. But it demands respect. The difference between a "transparent" encode (looks identical to source) and a "trash" encode (blocky, waxy, banded) is just a few CRF points or a single misconfigured psy-rd flag.

ffmpeg -i input.mkv -c:v libx265 -crf 30 -preset slow -x265-params "no-sao=1:deblock=-4,-4:psy-rd=1.0" -c:a aac -b:a 96k output.mp4

A CRF of 20 to 23 is generally recommended for a balance of high quality and small size.

If you don’t have the source, your only legitimate option is to use a (denoise or deblock) to simplify the image before re-encoding—but expect quality loss.