How to set custom bit rate during export?

Hi everyone and thanks for reading.

My question which I hope someone can assist me with is how do we set a custom bit rate for my MOV movie file when transcoding from ProRes 422 LT to H.264?

I have gone to Quality and selected Custom.

In the x264 Settings field, I tried entering the following:  

-b:v 5M   

Unfortunately this does not have any effect on the exported movie.

Any ideas what else I can try entering here?

Many thanks

Zahari

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5replies
  • Trying

    -bitrate 
    and
    -b 
    and I'm not seeing any impact either.

    Even tried something more complex.
    -c:v libx264 -preset slow -tune film -b:v 1M
    no impact.

    Please fill out the form and report this.

    Switch Report Form

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  • Have submitted the report form, Craig...

    Thanks!

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  • You're welcome of course. Please do post back anything interesting the engineers say.

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  • Hi Craig

    Aplogies for the delay. Busy switching operating systems... :)

    The good folks at Telestream got back to me as to how to go about setting the bit rate.  I have copied what they sent me...

     

    Please use two dashes and hit tab key for values in the x264 setting field to take effect.

    Example:

    Select Video Edit
    Select Video Transcode
    Expand H264
    Enter x264 setting: --bitrate 200
    Tab down

    Exported file should be 20 Mbps.

     

    I haven't tried it yet myself. Hope it helps someone else.

    By the way, they did mention that only very few options actually work here. Fortunately, I just needed the bit rate to be varied so as to keep file sizes at bay and was in luck :)

     

     

     

     

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  • Zahari M Thanks for that. Do test and report back. 
    We do have this Knowledge Base on x264 command line

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