4:2:2 in 4:2:0 Convert

#1
Hello

Sorry for my bad English. I have unfortunately only now seen the Pro version and installed the trial version.

A first question I would have: is it not possible to convert a 4:2:2 TS file H.264 (for example feed) to a 4:2:0 TS file H. 264? The chroma button is grayed out with (Trial version). --> Chroma_gray.jpg

When I convert an H. 264 to an MPEG 2 file... it works. 4:2:2--> 4:2:0 okay.

I am looking forward to an answer.

Greetings
 
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jmc

Active member
#2
Hello

Sorry for my bad English. I have unfortunately only now seen the Pro version and installed the trial version.
A first question I would have: is it not possible to convert a 4:2:2 TS file H.264 (for example feed) to a 4:2:0 TS file H. 264? The chroma button is grayed out with (Trial version). --> View attachment 2265
When I convert an H. 264 to an MPEG 2 file... it works. 4:2:2--> 4:2:0 okay.
I am looking forward to an answer.Greetings
I had to make the files but it did do a "Major Recode"
changing a .TS file from 422 to a 420. Per "MediaInfo"

jmc
 
#3
Sorry. What is "Major Recode"? I can't find the function.

Greetings

EDIT:

Do you mean this function? --> Force Recode.jpg


When I do this... stands in the MediaInfo 4:2:0. But my TV can't depict it. Only the sound works. Just like at 4:2:2.
 
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#4
Sorry, now I know what's meant by major recode. was a translation problem.

My question again: merely chroma 4:2:2 to set to 4:2:0 is not possible? Without changing any more?

I have now used H. 264 transport Stream 2... because it works with great recoding.

But I have a problem. In the pro version I always crash the program with "Toggle Preview Mode". Always only with a 4:2:2 TS file. 4:2:0 TS file not.
 

Dan203

Senior Developer
Staff member
#5
That option is disabled because only certain codec sets support 4:2:2 encoding. The default for all codecs is to output 4:2:0. So if your source is 4:2:2 and you want to output 4:2:0 you don't need to change that option at all.

That being said I can see how that is confusing so I might change the logic in the future to simply remove the 4:2:2 option from the list rather then disable the control completely.
 
#6
Hi Dan,

In the broadcasting sector, all codecs are certainly dominated by 4:2:2. Video Redo Pro is also meant for broadcasting. That's how I read it. I find the pro version great. Please leave 4:2:2 in.

When I cut a 4:2:2 H. 264 TS file and back into H. 264 store... 4:2:2 is retained. I have tested several times. Always only at all major recode required is the output form 4:2:0. Without major recode required, it remains 4:2:2 as in the original.

Perhaps you are still telling the difference between H. 264 Transport Stream 1 & 2?

Greetings from Europe
 

Dan203

Senior Developer
Staff member
#7
I'm not planning on removing anything. Just changing the behavior of the dropdown so it's less confusing.
 
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