Re: Black appears at end after deinterlace
Posted: Fri Jul 15, 2022 12:58 pm
Hi,
no worries i understood what you want but i need to know what kind of error you have in order to guide you.
The number of possible errors that you could have with interlacing is huge but one of the most common would be "wrongly flagged files". I must know if it is that or if your issue is something completely different, otherwise i don't know what to analyze before your desired IF-ELSE.
To be clear, you want an IF but the question is if <WHAT is WHAT>?
Here is an example workflow that analyzis the input files content and tries to find out the real interlacing, so it does not rely on the input file's metadata.
The analyzer will spit out not only the interlacing but also a confidence value. The thing is the older the content, the worse these confidence becomes. So there is no guaranteed way of getting out the real interlacing.
Anyway, so after analyzing, your IF condition is set to:
IF source content is top field AND confidence was > 90%, then the content will be encoded. The encoder node is set to assume Top Field, so again, it discards the input files metadata and just changes top to bottom field.
All other cases, e.g. the sources content was BFF or Progressive will be forwarded unmodified. This workflow assumes that input and output file are both DV. Be aware that without playing with confidence value and testing the workflow using lots of affected sources, the outcome picture could be horrible!
no worries i understood what you want but i need to know what kind of error you have in order to guide you.
The number of possible errors that you could have with interlacing is huge but one of the most common would be "wrongly flagged files". I must know if it is that or if your issue is something completely different, otherwise i don't know what to analyze before your desired IF-ELSE.
To be clear, you want an IF but the question is if <WHAT is WHAT>?
Here is an example workflow that analyzis the input files content and tries to find out the real interlacing, so it does not rely on the input file's metadata.
The analyzer will spit out not only the interlacing but also a confidence value. The thing is the older the content, the worse these confidence becomes. So there is no guaranteed way of getting out the real interlacing.
Anyway, so after analyzing, your IF condition is set to:
IF source content is top field AND confidence was > 90%, then the content will be encoded. The encoder node is set to assume Top Field, so again, it discards the input files metadata and just changes top to bottom field.
All other cases, e.g. the sources content was BFF or Progressive will be forwarded unmodified. This workflow assumes that input and output file are both DV. Be aware that without playing with confidence value and testing the workflow using lots of affected sources, the outcome picture could be horrible!