Author Topic: Cannot setup codec. Bitrate too low?  (Read 700 times)

haplo666

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Cannot setup codec. Bitrate too low?
« on: January 15, 2020, 03:23:27 PM »
Intel i5-7200U
Geforce 940MX - current drivers

Avidemux 2.7.1 64-bit
Avidemux 2.7.5 64-bit
Avidemux 2.7.5VC+ 64-bit

Settings all default except:
Video Output: Nvidia H264
MKV Muxer

Error: Cannot setup codec.  Bitrate too low?

If i switch to COPY it works fine.


M.

eumagga0x2a

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Re: Cannot setup codec. Bitrate too low?
« Reply #1 on: January 15, 2020, 03:50:52 PM »
Geforce 940MX - current drivers

This graphics card doesn't have an encoder unit which is required for hardware accelerated encoding to work.

eumagga0x2a

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Re: Cannot setup codec. Bitrate too low?
« Reply #2 on: January 15, 2020, 03:58:49 PM »
More precisely, there are some 940MX cards with a GM107 chip – they have NVENC units – and some 940MX with a GM108 – they have none. I assume you've drawn a blank.

haplo666

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Re: Cannot setup codec. Bitrate too low?
« Reply #3 on: January 15, 2020, 04:04:59 PM »
I assumed so, thank you for confirming.

What would my best option to use for video encoder?  Just leave it as copy?


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eumagga0x2a

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Re: Cannot setup codec. Bitrate too low?
« Reply #4 on: January 15, 2020, 04:10:39 PM »
If you can use copy (e.g. if you are okay with cuts possible only on keyframes and don't need to apply any video filters), then use copy. Otherwise re-encode using an encoder capable to encode with codec you need.