FFAStrans forum

Hey, I'm currently looking for a way to convert a single input into multiple bitrate and size mp4 files.
I used to have a single master converter and then two more that are chained after it. Now I look for a more optimized solution.

I.e.: If I have the source file has fields, I stick to the old workflow.
But if I don't need to preprocess/deinterlace it, I need to convert all three files simultaneously, so the whole thing would be a bit faster. But branching three outputs from a node sometimes lead to one of the outputs did not render for some reason. Sometimes it goes well, but sometimes I get this error: "Cannot parse media file. Might be corrupt. Please do a manual file check".

Most probably I just do it wrong. Do you have a workflow example for simultaneous rendering so I could grab the logic from there?

My current workflow loos like this:



First conditional is to check for the interlacing.

Hi movalex,

if i understand correctly, you fail to just do 3 encodings paralell within the ffastrans workflow?
What i would do is to bring together your "deinterlace" and "non deint" paths into one (e.g. connect both to the input of an empty populate vars processor). Then you insert 3 encoding processors and you connect your empty populate proc to the 3 encoders in paralell. No additional A/V decoder and resize filter needed as we see in your workflow, the Encoding processors can do the scaling and everything else you should need.

Instead of the populate you can also use hold

Oh right, this should work, I will try that. Thanks!

Perfect, please let us know about your progress!