Author Topic: does Avidemux support x264 10bit (Hi10P) already?  (Read 470 times)

tnt

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does Avidemux support x264 10bit (Hi10P) already?
« on: March 08, 2017, 03:38:16 PM »
as my x264 supports 10bit encoding for a long time, there is a question does Avidemux support x264 10bit (Hi10P) already?

thx.

eumagga0x2a

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Re: does Avidemux support x264 10bit (Hi10P) already?
« Reply #1 on: March 08, 2017, 04:57:56 PM »
I wonder if Avidemux uses 8 bit depth internally? (Can't check the code ATM.) In this case 10 bit encoding would be sort of pointless, wouldn't it?

The x264 library is either 8 bit or 10 bit (specified at the compile time). Build Avidemux against the 10 bit version and it will produce 10 bit h264 videos.

(Everything very much AFAIK)

mean

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Re: does Avidemux support x264 10bit (Hi10P) already?
« Reply #2 on: March 08, 2017, 06:38:39 PM »
yes, internally avidemux is 8 bits
It is counterintuitive, but in some cases, 10 bits encoding has better compression ratio than 8 bits

10bits decoding is supported
HW support is  ~ working in the ffmpeg 31 branch only (windows/vaapi)