compress extras with 2 pass?

[k-c-ksum]

is it possible to compress extras using 2 pass while also specifying a bitrate, I would like to compress them as much as possible while also getting the best pq out of them at that bitrate.

QUICK_CRF=30
QUICK_USE_QUALITY=1

adding that to the ini and ticking quick encode for extras yeilds fast and huge file saving but only uses 1 pass. Is there a hidden setting that can enable 2pass . Time is not an issue but file size is.

happy Christmas. 1 year BDRB just around the corner :)

[Sharc]

is it possible to compress extras using 2 pass while also specifying a bitrate, I would like to compress them as much as possible while also getting the best pq out of them at that bitrate.

QUICK_CRF=30
QUICK_USE_QUALITY=1

adding that to the ini and ticking quick encode for extras yeilds fast and huge file saving but only uses 1 pass. Is there a hidden setting that can enable 2pass . Time is not an issue but file size is.

2-pass doesn't provide really superior picture quality compared to crf 1-pass (@equal file size means equal bitrate). So if you are happy with the crf 30 quality and filesize there is actually no reason for changing to 2-pass for the Extras. If you want stronger or weaker compression (filesize) you can just change the crf value. Even more, you have with the crf value a kind of quality indicator (like 17 ...20 very good, 20 to 25 good, 26 to 30 acceptable, or similar) which you would loose when just fixing the filesize.

[k-c-ksum]

2-pass doesn't provide really superior picture quality compared to crf 1-pass (@equal file size means equal bitrate). So if you are happy with the crf 30 quality and filesize there is actually no reason for changing to 2-pass for the Extras. If you want stronger or weaker compression (filesize) you can just change the crf value. Even more, you have with the crf value a kind of quality indicator (like 17 ...20 very good, 20 to 25 good, 26 to 30 acceptable, or similar) which you would loose when just fixing the filesize.

thanks for explaining that. Im clueless when it comes to x264.
I had it in my head that the second pass would pinch some bits from an easy part of the image to encode giving it to the tricky parts.
Trying to find a trade off for aceptable pq/file size saving.

[Dark Shikari]

thanks for explaining that. Im clueless when it comes to x264.
I had it in my head that the second pass would pinch some bits from an easy part of the image to encode giving it to the tricky parts.
Trying to find a trade off for aceptable pq/file size saving.CRF already does that. All that 2-pass does is try to guess the CRF number that gets the bitrate you want.