DVDLogic Software forum

Hello,

When encoding, the parameters are not taken in account. For exemple, 2-pass is not checked but x264 encodes in 2-pass, the same with Quality : whatever I choose ultrafast or veryslow, it takes the same encode framerate... I don't know for the other params as I don't have a way to check.

May I be wrong somewhere ?

Otherwise that's a great feature idea.

Thanks

Hello,
Regarding the 2-pass checkbox - thank you, we found the issue, will fix in the next beta.
Regarding the presets - the speed can be noticed on the second pass mainly (for 2-pass encoding).

Hello,
X264 can't enable "-- profile high " parameter encoding?
Thanks

Hello!
You mean this UI? No, in this UI you can't. It is a replacement for command line recommended for Blu-ray encoding by x264bluray.com (not available anymore).

Hello Alexey,

I found that the x264 binary is 32bits, why don't use 64bits one ? I replaced it by myself and got almost x2 performance.
But It stayed very slow (between 12-19fps), so I tested an encode by hand with command line and got 70fps !
Why x264 encoding is very slow with Encoders UI, but not executed standalone ?

Here is my command line :
"C:\Program Files\Blu-Disc Studio MX Pro\Encoders\ffmpeg.exe" -i "MASTER.mov" -vf "scale=1920:1080, format=yuv420p" -video_size 1920x1080 -framerate 25 -pixel_format yuv420p -f yuv4mpegpipe - | "C:\Program Files\Blu-Disc Studio MX Pro\Encoders\x264-r3094-bfc87b7_win64.exe" --demuxer y4m --input-res 1920x1080 --fps 25 --bitrate 24000 --preset veryslow --tune film --bluray-compat --vbv-maxrate 29000 --vbv-bufsize 29000 --level 4.1 --keyint 25 --open-gop --slices 4 --tff --colorprim "bt709" --transfer "bt709" --colormatrix "bt709" --sar 1:1 --weightp 0 --b-pyramid none --pass 1 -o NULL -

And again the same command with --pass 2 parameter and a filename specified as output instead of NULL

Hello,

You can use any binaries. Our archive is what some of our clients use.

Regarding the speed from UI against command line. UI creates cmd-file in the temp folder and runs it. You can compare your command line with it.
The only thing that I see - Encoder UI is not intended for using 1080p with x265.

BROKEN PIPE:
I've been attempting to end an encode at a certain point ( 240 frames for testing purposes).
I've successfully encoded the whole file using x265 but keep on getting Broken pipe errors whenever I limit the amount of frames to encode.
I did try 241,244,480 etc to see if it needed a certain amount of frames to be able to close on and I did try encoding it direct via the CMD, all with the same result.

I'm the command window for ffmpeg you can press any key and it will pause and restart etc.
Also ctrl +c or ctrl+z will kill the encoding i believe .

Is it possible to put a pause box in the encoder UI to pause/unpause output.

I suppose you need to specify start/stop frames for ffmpeg, not x265
so you need to use -ss/-to/-t - check https://ffmpeg.org/ffmpeg.html for details
and you need to add it at the beginning of the "Other x265 ..." parameters

How do you calculate bufsize for cbr encodes?
Blu-ray - Bitrate 35000 Max bitrate 35000 Bufsize?
UHD - Bitrate 70000 Max Bitrate 70000 Bufsize?