4k down sampled to 1080 software?

[michael23]

Just thinking aloud here, seeing as panasonic have released the fz1000, I have 8gb of ram and an i54200m processor with premiere elements, would this be suitable to downsample a 4k file to 1080?

 

[WelshNoob]

What graphics card do you have? Surely that would be doing most of the work?

 

[michael23]

I have an intel hd4600

What graphics card do you have? Surely that would be doing most of the work?

 

[st599]

Does it shoot 4k the TV variant (3840x2160) or the motion picture variant (4096x2160).

If the former, it's an easy filter to apply, the PC grunt will be taking re-encoding it at HD.

If the latter, you need to either crop every frame or add letterbox bars.

Something like handbrake will do it easily.

 

[michael23]

Looking at the specs it shoots it at the 3840x2160. Thanks for the mention of handbrake, I see its a free download

 

[st599]

getting handbrake to do something like

ffmpeg -i <input_file> -vf scale=1920:1080:0 -sws_flags lanczos -vcodec dnxhd -b 185M -acodec pcm_s24le -ac 2 -ar 48k <output_file>
or
ffmpeg -i <input_file> -vf scale=1920:1080:0 -sws_flags lanczos -vcodec prores -profile:v 3 -acodec pcm_s24le -ac 2 -ar 48k <output_file>


Should work well with Premiere

 

[leeboy22001]

I'd go with ffmpeg, we use this all the time to convert 4k material to hd. I'd upgrade to more ram if possible, but your current setup should be fine, just don't expect it to do realtime conversation, you'll get anything but !