DIY is great, we are totally in agreement about that, I just think it is important to point that it is a waste of valuable production time and therefore a waste of money.
But if we’re already sharing ProRes DIY, I will add some of my favorites:
"C:\ffmpeg\bin\ffmpeg.exe" -i "H:\Path\to\Source\File.mp4" -c:v prores_ks -vprofile 0 -pix_fmt yuv422p10 -quant_mat default -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2" -acodec pcm_s24le -ar 48000 -map 0:v -map 1:a -y "H:\Path\to\Rendered\Output-File.mov"
"C:\ffmpeg\bin\ffmpeg.exe" = this points to wherever you placed the FFmpeg binary (.exe on Windowns).
-i "H:\Path\to\Source\File.mp4" = this points to wherever you placed the the original/Source video you want to process.
-c:v prores_ks = this tells FFmpeg to encode using the higher quality method, remove the
_ks for the faster encoding method.
-vprofile 0 = this defines what kind of ProRes to create 0=Proxy, the lowest bitrate and the slowest to produce, 1=LT, a bit higher bitrate and takes a bit less to produce, 2=ProRes 422 higher bitrate than LT and faster to create.
-pix_fmt yuv422p10 -quant_mat default -vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2" = this forces a specific high quality color scheme, and resizes any video into Full-HD (1080p) using the Letterboxing technique.
-acodec pcm_s24le -ar 48000 = convert the audio stream into uncompressed 24-bit/48kHz PCM format (the standard for post-production work)
-map 0:v -map 1:a = defines how to map the video and audio streams in the new media container (not a must if you don’t add or remove anything from the original media)
-y = it says: if a file with the same name already exists, overwrite it. (be careful with that).
"H:\Path\to\Rendered\Output-File.mov" = this points to wherever you want to place the processed media, make sure it always ends with
.mov if you wish to use this media in Cubase or Nuendo, but this also works with .mxf if you do it for PT for example.
Good Luck, and remember, it’s time-consuming, do it only if you have a lot of time to spare or buy the ER bundle for a faster, brain-free, video production, audio replacing, and much more.